Touch input system and controller including pen

Abstract

To provide a pen and touch input system that generates a sufficient output signal even with a thin diameter by presenting an optimal stylus pen resonant circuit structure.SOLUTION: A pen and touch input system according to an embodiment of the present invention includes a touch input device 2 including a touch screen 20 with a sensor unit and a control unit for controlling the sensor unit, and a stylus pen 10 interacting with the touch input device.SELECTED DRAWING: Figure 1a

Description

[Technical field]

[0001] The present disclosure relates to a pen and touch input system and controller, and more particularly to a pen and touch input system and controller for controlling a sensor portion in a touch input device that includes a sensor portion and can interact with a stylus pen. [Background technology]

[0002] A variety of touch input devices, such as mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation systems, slate PCs, tablet PCs, Ultrabooks, and wearable devices, are equipped with touch sensors.

[0003] In such touch input devices, a touch sensor may be located on a display panel that displays images or may be located as a part of the touch input device, and a user may interact with the electronic device by touching the touch sensor, thereby providing the user with an intuitive user interface.

[0004] A user can use a stylus pen for precise touch input. Stylus pens can be classified into active stylus pens and passive stylus pens depending on whether they have a battery and electronic components inside.

[0005] Active stylus pens have the advantage of being superior in basic performance compared to passive stylus pens and providing additional functions (pressure, hovering, buttons), but they have the disadvantage that the pen itself is expensive and requires a power source to be charged by a battery, so there are only a few high-end users.

[0006] Passive stylus pens have the advantages of being cheaper and not requiring batteries compared to active stylus pens, but have the disadvantage of being more difficult to recognize precise touches than active stylus pens. Recently, however, in order to realize passive stylus pens that can recognize precise touches, the inductive resonance method EMR (Electro Magnetic Resonance) method and the capacitive resonance method have been proposed.

[0007] The EMR method has the advantage of the quality of writing / drawing, which is the core function of a stylus pen, but it has the disadvantage of being thick and expensive because a separate EMR sensor panel and EMR driving IC must be added in addition to the capacitance touch panel.

[0008] The capacitive resonance method uses a general capacitance touch sensor and touch controller IC, which not only eliminates additional costs but also improves IC performance to support pen touch.

[0009] In the EMR or capacitive resonance method, the amplitude of the resonance signal must be large in order for the touch sensor to more accurately identify the touch by the stylus pen, and therefore the frequency of the drive signal transmitted to the stylus pen must be almost the same as the resonance frequency of the resonance circuit built into the stylus pen. However, in the conventional EMR or capacitive resonance method, even if the resonance frequency and the frequency of the drive signal match, there is a problem that the attenuation of the signal transmission is very large, making it difficult to transmit the signal. As a result, despite many attempts by many touch controller IC vendors, there is still no manufacturer that has succeeded in mass production because a sufficient output signal cannot be obtained.

[0010] Therefore, in order to manufacture an EMR type or capacitive resonant stylus pen capable of generating a maximum output signal, how the internal resonant circuit and the structure of the pen are designed is a very important factor.

[0011] Meanwhile, in the case of an electro-magnetic resonance (EMR) type pen among passive stylus pens, a digitizer transmits a magnetic signal to the pen, and then receives a resonance signal from the pen. In such a digitizer, coils in which a current can be induced by a magnetic signal are densely arranged to receive touch information from the pen. However, such digitizers have problems in that they cannot accommodate the miniaturization and thinning of touch input devices, and cannot be flexibly designed. Summary of the Invention [Problem to be solved by the invention]

[0012] The present embodiment is directed to providing a pen and touch input system, including a stylus pen, that is capable of producing a sufficient output signal.

[0013] Also provided is a controller for controlling a sensor portion in a touch input device capable of interacting with a stylus pen capable of producing a sufficient output signal.

[0014] Also provided is a pen and touch input system including a multi-function touch input device capable of detecting a touch position, driving a stylus pen, and detecting the position of the stylus pen.

[0015] Also, the present invention provides a pen and touch input system including a touch input device capable of solving the problem of the output voltage of the sensing circuit varying depending on the position of the stylus pen.

[0016] In addition, the present invention provides a pen and touch input system including a touch input device that can expand the operating frequency bandwidth of touch driving signals and pen driving signals when the screen of the touch input device is expanded to the size of a tablet PC screen.

[0017] In addition, the present invention provides a pen and touch input system including a touch input device that can reduce attenuation of a pen sensing signal when the screen of the touch input device is expanded to the size of a tablet PC screen.

[0018] Also provided is a pen and touch input system that can be implemented on a single layer.

[0019] The present invention also provides a pen and touch input system that can improve touch sensing performance using a stylus pen.

[0020] The present invention also provides a controller for controlling a sensor unit in a multi-function touch input device capable of detecting a touch position, driving a stylus pen, and detecting the position of the stylus pen.

[0021] In addition, the present invention provides a controller for controlling a sensor unit in a touch input device that can solve the problem of the output voltage of the sensing circuit unit varying depending on the position of a stylus pen.

[0022] In addition, a controller for controlling a sensor unit in a touch input device is provided that can widen the operating frequency bandwidth of touch drive signals and pen drive signals when the screen of the touch input device is expanded to the size of a tablet PC screen.

[0023] Also, a controller for controlling a sensor unit in a touch input device is provided that can reduce attenuation of a pen sensing signal when the screen of the touch input device is expanded to the size of a tablet PC screen.

[0024] Also provided is a controller capable of controlling a pen and touch input system that can be implemented on one layer.

[0025] Also provided is a controller capable of improving the touch sensing performance by a stylus pen.

[0026] The problems to be solved by the present invention are not limited to those mentioned above. [Means for solving the problem]

[0027] A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a controller that controls the sensor unit, and a stylus pen operable with the touch input device. The sensor unit includes a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein at least some second side ends of the plurality of second patterns are electrically connected to each other, and at least some second side ends of the plurality of fourth patterns are electrically connected to each other. The stylus pen includes a body portion, a tip exposed from within the body portion to the outside, and the the controller is configured to apply a stylus pen driving signal through at least one pen driving pattern among the first through fourth patterns, and to receive a stylus pen sensing signal from at least one pen sensing pattern among the first through fourth patterns, and the controller may determine a touch point of the stylus pen between two pen sensing patterns that output two pen sensing signals having maximum and minimum values ​​among the stylus pen sensing signals received from the pen sensing patterns.

[0028] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device, the sensor unit including a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein at least some second side ends of the plurality of second patterns are electrically connected to each other, and at least some second side ends of the plurality of fourth patterns are electrically connected to each other, and the stylus pen includes a body portion and a plurality of first patterns exposed from within the body portion to the outside. the controller is for applying a stylus pen driving signal through at least one pen driving pattern among the first through fourth patterns, and the controller is for receiving a stylus pen sensing signal from at least one pen sensing pattern among the first through fourth patterns, and the controller may determine a touch point of the stylus pen between patterns where signals of two adjacent pen sensing patterns have opposite signs to each other among the received stylus pen sensing signals.

[0029] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device. The sensor unit includes a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein at least some second side ends of the plurality of second patterns are electrically connected to each other, and at least some second side ends of the plurality of fourth patterns are electrically connected to each other, and the stylus pen includes a body unit and a plurality of first patterns extending from inside the body unit to an outside. the controller is configured to apply a stylus pen driving signal through at least one pen driving pattern among the first through fourth patterns, and the controller is configured to receive a stylus pen sensing signal from at least one pen sensing pattern among the first through fourth patterns, and the controller may differentiate the received stylus pen sensing signal to determine a position on the pen sensing pattern where a differential value is maximized as a touch point of the stylus pen.

[0030] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device. The sensor unit includes a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein at least some second side ends of the plurality of second patterns are electrically connected to each other, and at least some second side ends of the plurality of fourth patterns are electrically connected to each other. The stylus pen includes a body unit and a chuck exposed from within the body unit to the outside. the controller is for applying a touch driving signal through the plurality of first patterns and receiving a touch sensing signal through the plurality of third patterns, the controller being for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns through fourth patterns, and the controller being for receiving a stylus pen sensing signal from at least one pen sensing pattern among the plurality of first patterns through fourth patterns, and the controller may receive a differential signal from two adjacent pen sensing patterns among the pen sensing patterns and determine a touch point of a stylus pen based on a maximum value or a minimum value of the received differential signal.

[0031] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device. The sensor unit includes a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, and a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller. The stylus pen includes a body unit, a tip exposed to the outside from within the body unit, an inductor unit including a ferrite core located within the body unit and a coil wound in multiple layers on at least a portion of the ferrite core, and a coil located within the body unit and connected to the inductor unit. and a capacitor unit electrically coupled to the plurality of first patterns to form a resonant circuit, the controller being for applying a touch driving signal at the plurality of first patterns and receiving a touch sensing signal at the plurality of third patterns, the controller being for applying a stylus pen driving signal at at least one pen driving pattern among the plurality of first patterns and the plurality of third patterns, the controller being for receiving a stylus pen sensing signal from at least one pen sensing pattern among the plurality of first patterns and the plurality of third patterns, and the controller being capable of determining a touch point of the stylus pen between two pen sensing patterns outputting two pen sensing signals having maximum and minimum values ​​among the stylus pen sensing signals received from the pen sensing patterns.

[0032] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device, the sensor unit including a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, and a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, the stylus pen including a body unit, a tip exposed to the outside from within the body unit, an inductor unit including a ferrite core located within the body unit and a coil wound in multiple layers on at least a portion of the ferrite core, and an inductor unit located within the body unit and configured to induct the inductor unit. and a capacitor unit electrically connected to the ductor unit to form a resonant circuit, the controller being for applying touch driving signals in the plurality of first patterns and receiving touch sensing signals in the plurality of third patterns, the controller being for applying stylus pen driving signals in at least one pen driving pattern among the plurality of first patterns and the plurality of third patterns, the controller being for receiving stylus pen sensing signals from at least one pen sensing pattern among the plurality of first patterns and the plurality of third patterns, and the controller being for determining a touch point of the stylus pen between patterns in which signals of two adjacent pen sensing patterns among the received stylus pen sensing signals have opposite signs to each other.

[0033] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device, the sensor unit including a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, and a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, the stylus pen including a body portion, a tip exposed to the outside from within the body portion, an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core, and a coil wound in multiple layers on at least a portion of the ferrite core, the coil wound in multiple layers on at least a portion of the ferrite core, and the coil wound in multiple layers on at least a portion of the ferrite core. and a capacitor unit electrically connected to the inductor unit to form a resonant circuit, the controller being for applying a touch driving signal through the plurality of first patterns and receiving a touch sensing signal through the plurality of third patterns, the controller being for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns and the plurality of third patterns, the controller being for receiving a stylus pen sensing signal from at least one pen sensing pattern among the plurality of first patterns and the plurality of third patterns, and the controller being for differentiating the received stylus pen sensing signal to determine a position on the pen sensing pattern where a differential value is maximum as a touch point of the stylus pen.

[0034] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device, the sensor unit including a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, and a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, the stylus pen including a body unit, a tip exposed to the outside from within the body unit, an inductor unit including a ferrite core located within the body unit and a coil wound in multiple layers on at least a portion of the ferrite core, and a coil wound in multiple layers on at least a portion of the ferrite core, the inductor unit being located within the body unit and wound around the inductor unit. and a capacitor unit electrically connected to the capacitor unit to form a resonant circuit, the controller being for applying a touch driving signal through the plurality of first patterns and receiving a touch sensing signal through the plurality of third patterns, the controller being for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns and the plurality of third patterns, the controller being for receiving a stylus pen sensing signal from at least one pen sensing pattern among the plurality of first patterns and the plurality of third patterns, and the controller being for receiving a differential signal from two adjacent pen sensing patterns among the pen sensing patterns, and determining a touch point of a stylus pen based on a maximum value or a minimum value of the received differential signal.

[0035] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device, the sensor unit further including a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in another second direction perpendicular to the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein second side ends of at least some of the second patterns or at least some of the fourth patterns are electrically connected to each other, and the stylus pen includes a body portion, a tip exposed from within the body portion to the outside, a ferrite core located within the body portion, and a wire wound in multiple layers on at least a portion of the ferrite core. the controller is configured to apply a stylus pen driving signal through at least one pen driving pattern among the first through fourth patterns, and to sense a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern; the controller is configured to receive a stylus pen sensing signal from the pen sensing pattern, and the controller may determine a touch point of the stylus pen between two pen sensing patterns outputting two pen sensing signals having maximum and minimum values ​​among the stylus pen sensing signals received from the pen sensing patterns.

[0036] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device, the sensor unit further including a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in another second direction perpendicular to the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein second side ends of at least some of the second patterns or at least some of the fourth patterns are electrically connected to each other, and the stylus pen includes a body portion, a tip exposed from within the body portion to the outside, a ferrite core located within the body portion, and a multilayered structure on at least a portion of the ferrite core. the controller is configured to apply a stylus pen driving signal through at least one pen driving pattern among the first through fourth patterns, the controller selects at least one pattern among the first through fourth patterns as a pen sensing pattern, and senses a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern, the controller is configured to receive a stylus pen sensing signal from the pen sensing pattern, and the controller may determine a touch point of the stylus pen between patterns in which signals of two adjacent pen sensing patterns have opposite signs among the received stylus pen sensing signals.

[0037] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device, the sensor unit further including a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in another second direction perpendicular to the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein second side ends of at least some of the second patterns or at least some of the fourth patterns are electrically connected to each other, and the stylus pen includes a body portion, a tip exposed from within the body portion to the outside, a ferrite core located within the body portion, and at least a portion of the ferrite core. the controller is configured to apply a touch driving signal through the plurality of first patterns and receive a touch sensing signal through the plurality of third patterns, the controller is configured to apply a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns, the plurality of first patterns, the plurality of fourth patterns, the controller is configured to select at least one pattern among the plurality of first patterns, the plurality of fourth patterns, as a pen sensing pattern, and sense a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern, the controller is configured to receive a stylus pen sensing signal from the pen sensing pattern, and the controller is configured to differentiate the received stylus pen sensing signal and determine a position on the pen sensing pattern where a differential value is maximum as a touch point of the stylus pen.

[0038] According to yet another embodiment of the present invention, there is provided a pen and touch input system including a touch input device including a sensor unit and a controller for controlling the sensor unit, and a stylus pen operable with the touch input device, the sensor unit further including a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in another second direction perpendicular to the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein second side ends of at least some of the second patterns or at least some of the fourth patterns are electrically connected to each other, and the stylus pen includes a body portion, a tip exposed to the outside from within the body portion, a ferrite core located within the body portion, and a ferrite core wound in multiple layers on at least a portion of the ferrite core. the controller is configured to apply a stylus pen driving signal through at least one pen driving pattern among the first through fourth patterns, the controller selects at least one pattern among the first through fourth patterns as a pen sensing pattern, and senses a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern, the controller is configured to receive a stylus pen sensing signal from the pen sensing pattern, and the controller may receive a differential signal from two adjacent pen sensing patterns among the pen sensing patterns, and determine a touch point of the stylus pen based on a maximum value or a minimum value of the received differential signal.

[0039] Here, the ferrite core may have a dielectric constant of 1000 or less, the coil may be wound such that adjacent winding layers are alternately wound, and the coil may include a wire in a form in which two or more insulated wires are wrapped around the wire.

[0040] Here, the coil may be wound such that adjacent winding layers are inclined in a zigzag manner.

[0041] Here, the ferrite core may contain nickel.

[0042] Here, the coil may use a Litz wire.

[0043] Here, the magnetron may further include a bobbin covering at least a portion of the ferrite core, and the coil may be wound around at least a portion of the bobbin.

[0044] Here, the inductor section may include two or more inductors connected in series.

[0045] Here, the inductor portion may further include a conductive blocking member positioned over at least a portion of the inductor portion.

[0046] Here, the blocking member may include a slit that blocks generation of eddy currents, and both ends of the blocking member may be spaced apart along a first direction by the slit, and the first direction may be configured to be a direction in which eddy currents are generated.

[0047] Here, any one of the plurality of second patterns and the plurality of fourth patterns may be for applying a stylus pen driving signal for driving the stylus pen.

[0048] Here, the remaining one of the plurality of second patterns and the plurality of fourth patterns may be electrically floating.

[0049] Here, a stylus pen driving signal for driving the stylus pen may be applied through a pattern different from a pattern for applying the touch driving signal and a pattern for receiving the touch sensing signal.

[0050] Here, at least one of the first patterns and the third patterns may be the pen driving pattern.

[0051] Here, the stylus pen driving signal may be applied via the same pattern as the pattern for applying the touch driving signal or the pattern for receiving the touch sensing signal.

[0052] Here, at least one of the first patterns and the third patterns may be for receiving the stylus pen sensing signal.

[0053] Here, the stylus pen sensing signal may be received through the same pattern as the pattern for applying the touch driving signal or the pattern for receiving the touch sensing signal.

[0054] Here, the first pattern and the second pattern may be configured to have a length longer than a length of the third pattern and the fourth pattern.

[0055] Here, at least one of the first to fourth patterns may be for applying a stylus pen driving signal for driving the stylus pen and for sensing a detection signal for detecting the stylus pen.

[0056] Here, the first pattern may include patterns 1a and 1b arranged along the first direction, and the second pattern may include patterns 2a and 2b arranged along the first direction, and second side ends of at least some of the multiple 2a patterns may be electrically connected, second side ends of at least some of the multiple 2b patterns may be electrically connected, and second side ends of at least some of the multiple 2a patterns and second side ends of at least some of the multiple 2b patterns may face each other.

[0057] Here, the first pattern and the second pattern may be configured to have a length longer than a length of the third pattern and the fourth pattern.

[0058] At least one of the first through fourth patterns may include a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions.

[0059] Here, at least a portion of the main pattern portion may have a diamond shape.

[0060] Here, the main pattern portion of the second pattern may have a shape corresponding to that of the main pattern portion of the first pattern, and the main pattern portion of the fourth pattern may have a shape corresponding to that of the main pattern portion of the third pattern.

[0061] Here, the first pattern or the third pattern may have an opening, and the second pattern or the fourth pattern may be disposed inside the opening of the first pattern or the third pattern, respectively.

[0062] Here, the first pattern or the third pattern may be configured to surround the second pattern or the fourth pattern, respectively.

[0063] Here, the first pattern and the second pattern may be disposed in the same layer, or the third pattern and the fourth pattern may be disposed in the same layer.

[0064] Here, at least a portion of the first pattern and at least a portion of the second pattern may be arranged on a first layer, and at least a portion of the third pattern and at least a portion of the fourth pattern may be arranged on a second layer.

[0065] Here, second side ends of the plurality of second patterns and the plurality of fourth patterns may be electrically connected to each other through vias.

[0066] Here, the control unit may be for applying a driving signal for touch sensing in at least one first pattern among the plurality of first patterns, and receiving a sensing signal from at least one third pattern among the plurality of third patterns.

[0067] Here, the control unit may be configured to connect the second patterns or the fourth patterns to a plurality of driving circuits.

[0068] Here, the control unit may include a recording medium having a program recorded thereon for executing a step of applying a driving signal for touch sensing in at least one first pattern among the plurality of first patterns, and a step of receiving a sensing signal from at least one third pattern among the plurality of third patterns.

[0069] Here, the control unit may include a recording medium having a program recorded thereon for executing the step of connecting the second patterns or the fourth patterns to a plurality of driving circuits.

[0070] Here, the touch sensing device may further include a plurality of drive circuit units for touch sensing and a plurality of sensing circuit units for touch sensing, and the control unit may be configured to control the touch driving signal to be applied to at least one of the plurality of first patterns or the plurality of third patterns via the plurality of drive circuit units for touch sensing, and to receive the touch sensing signal received from at least one of the plurality of first patterns or the plurality of third patterns via the plurality of sensing circuit units for touch sensing.

[0071] Here, the touch panel may further include a plurality of pen driving circuit units, and the control unit may be configured to control the plurality of pen driving circuit units to apply a signal equal to the touch driving signal to the plurality of second patterns or the plurality of fourth patterns.

[0072] Here, the control unit may be configured to output the stylus pen driving signal to at least one pen driving pattern among the first to fourth patterns, and to output a driving signal opposite to the stylus pen driving signal to at least another driving pattern among the one or more patterns.

[0073] Here, the control unit may include a recording medium having recorded thereon a program for executing the steps of outputting the stylus pen driving signal to at least one pen driving pattern among the plurality of first patterns to fourth patterns, and outputting a driving signal opposite to the stylus pen driving signal to at least another driving pattern among the plurality of patterns.

[0074] Here, the device may further include a plurality of pen driving circuit units, and the control unit may be configured to control so that the stylus pen driving signal is applied to at least one pen driving pattern via at least one of the plurality of pen driving circuit units, and a signal opposite to the stylus pen driving signal is applied to at least one other pen driving pattern via at least another pen driving circuit unit among the plurality of pen driving circuit units.

[0075] Here, the control unit may be for controlling the detection of the stylus pen based on an output value from at least one of the pen detection patterns and an output value from at least one of the pen detection patterns different from the pen detection pattern.

[0076] Here, the control unit may include a recording medium having recorded thereon a program for executing a step of detecting the pen based on an output value from at least one of the pen detection patterns and an output value from at least one of the pen detection patterns different from the pen detection pattern.

[0077] Here, the device may further include a plurality of pen sensing detection circuit units, and the control unit may be for controlling to detect the pen based on an output value from at least one pen sensing pattern among the pen sensing patterns sensed through at least one pen sensing detection circuit unit among the plurality of pen sensing detection circuit units, and an output value from at least one pen sensing pattern among the pen sensing patterns different from the pen sensing pattern sensed through at least another pen sensing circuit unit among the plurality of pen sensing detection circuit units.

[0078] Here, at least a portion of the sensing circuit unit for pen sensing may be used for touch sensing.

[0079] A pen and touch input system according to still another embodiment of the present invention may further include a capacitor coupled to the second end pattern of the plurality of second patterns or the plurality of fourth patterns.

[0080] Here, the second pattern may be a bar pattern disposed within the first pattern and extending in a first direction, and the fourth pattern may be a bar pattern disposed within the third pattern and extending in a second direction. The semiconductor device may further include: a plurality of fifth patterns disposed between the plurality of first patterns, having a shape corresponding to and overlapping with a main pattern portion of the third pattern, and electrically connected to the fourth pattern; a capacitor connected to a pattern at the second end portion of the plurality of fifth patterns; a plurality of sixth patterns disposed between the plurality of third patterns, having a shape corresponding to and overlapping with a main pattern portion of the first pattern, and electrically connected to the second pattern; and a capacitor connected to a pattern at the second end portion of the plurality of sixth patterns.

[0081] Here, the touch input device may further include at least one trace that is directly connected to where the patterns located at the second end are electrically connected to each other and is disposed outside an active area of ​​the touch input device.

[0082] Here, the sensor unit may further include at least one of a fifth pattern and a sixth pattern, the fifth pattern being disposed on a layer different from a layer on which any one of the third pattern and the fourth pattern is disposed, electrically connected to the one of the third pattern and the fourth pattern, and disposed so as to overlap in the vertical direction with at least a portion of the remaining one of the third pattern and the fourth pattern; and the sixth pattern being disposed on a layer different from a layer on which any one of the first pattern and the second pattern is disposed, electrically connected to the one of the first pattern and the second pattern, and disposed so as to overlap in the vertical direction with at least a portion of the remaining one of the first pattern and the second pattern.

[0083] Here, the first pattern may be arranged so as to overlap a portion of the second pattern in the vertical direction, or the third pattern and the fourth pattern may be arranged on different layers, and the third pattern may be arranged so as to overlap a portion of the fourth pattern in the vertical direction.

[0084] The pen sensing pattern may further include a plurality of traces connecting the pen sensing pattern and the controller, and directions of current flowing through two of the plurality of traces corresponding to the two pen sensing patterns may be opposite to each other.

[0085] Here, the sensor may further include a magnetic field shielding layer formed in a layer different from that of the sensor unit.

[0086] Here, the display device may further include a display panel, the display panel having a folding region that is bent based on a folding axis and a non-folding region separated by the folding region, and the magnetic field shielding layer may be located corresponding to both the folding region and the non-folding region.

[0087] Here, the display device further includes a display panel having a folding region that is bent based on a folding axis and a non-folding region that is spaced apart by the folding region, and the magnetic field shielding layer is located spaced apart from the non-folding region.

[0088] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen. The sensor unit includes a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein at least some second side ends of the plurality of second patterns are electrically connected to each other and at least some second side ends of the plurality of fourth patterns are electrically connected to each other. The stylus pen includes a body portion, a tip exposed to the outside from within the body portion, and a ferrite core disposed within the body portion. and an inductor unit including a coil wound in multiple layers on at least a portion of the ferrite core; and a capacitor unit located within the body unit and electrically connected to the inductor unit to form a resonant circuit, wherein the controller is for applying a touch driving signal through the plurality of first patterns and receiving a touch sensing signal through the plurality of third patterns, the controller is for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns through fourth patterns, and the controller is for receiving a stylus pen sensing signal from at least one pen sensing pattern among the plurality of first patterns through fourth patterns, and the controller may determine a touch point of the stylus pen between two pen sensing patterns that output two pen sensing signals having maximum and minimum values ​​among the stylus pen sensing signals received from the pen sensing patterns.

[0089] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen. The sensor unit includes a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein at least some second side ends of the plurality of second patterns are electrically connected to each other and at least some second side ends of the plurality of fourth patterns are electrically connected to each other. The stylus pen includes a body portion, a tip exposed to the outside from within the body portion, and a tip disposed within the body portion. the touch point of the stylus pen may be determined between two adjacent patterns where signals of the pen sensing patterns have opposite signs to each other. The touch point of the stylus pen may be determined between two adjacent patterns where signals of the pen sensing patterns have opposite signs to each other. The touch point of the stylus pen may be determined between two adjacent patterns where signals of the pen sensing patterns have opposite signs to each other. The touch point of the stylus pen may be determined between two adjacent patterns where signals of the pen sensing patterns have opposite signs to each other. The touch point of the stylus pen may be determined between two adjacent patterns where signals of the pen sensing patterns have opposite signs to each other.

[0090] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen. The sensor unit includes a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein at least some second side ends of the plurality of second patterns are electrically connected to each other and at least some second side ends of the plurality of fourth patterns are electrically connected to each other. The stylus pen includes a body portion, a tip exposed to the outside from within the body portion, and a plurality of electrodes disposed within the body portion. and a capacitor unit located within the body unit and electrically connected to the inductor unit to form a resonant circuit. The controller is for applying a touch driving signal through the plurality of first patterns and receiving a touch sensing signal through the plurality of third patterns, the controller is for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns, the plurality of second patterns, the plurality of third ... fourth patterns, the plurality of third patterns, the plurality of third patterns, the plurality of fourth patterns, the plurality of third patterns, the plurality of third patterns, the plurality of fourth patterns, the plurality of third patterns, the plurality of fourth patterns, the plurality of third patterns, the plurality of fourth patterns, the plurality of first patterns, the plurality of fourth patterns, the plurality of third patterns, the plurality of third patterns, the plurality of fourth patterns, the plurality of third patterns, the plurality of fourth patterns, the plurality of third patterns, the plurality of fourth patterns, the plurality of fourth patterns, the plurality of first patterns, the plurality of fourth patterns, the plurality of fourth patterns, the plurality of fourth patterns, the plurality of first patterns, the plurality of fourth patterns, the plurality of fourth patterns, the plurality of first patterns, the plurality of fourth patterns, the plurality of fourth patterns, the plurality of fourth patterns, the plurality of first patterns, the plurality of fourth patterns, the plurality of fourth patterns, the plurality of fourth patterns, the plurality of first patterns, the plurality of fourth

[0091] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen. The sensor unit includes a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein at least some second side ends of the plurality of second patterns are electrically connected to each other and at least some second side ends of the plurality of fourth patterns are electrically connected to each other. The stylus pen includes a body portion, a tip exposed to the outside from within the body portion, and a ferrule disposed within the body portion. the ferrite core and an inductor unit including a coil wound in multiple layers on at least a portion of the ferrite core; and a capacitor unit located within the body unit and electrically connected to the inductor unit to form a resonant circuit, the controller is for applying touch driving signals through the plurality of first patterns and receiving touch sensing signals through the plurality of third patterns, the controller is for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns through fourth patterns, the controller is for receiving a stylus pen sensing signal from at least one pen sensing pattern among the plurality of first patterns through fourth patterns, and the controller is for receiving a differential signal from two adjacent pen sensing patterns among the pen sensing patterns and determining a touch point of a stylus pen based on a maximum or minimum value of the received differential signal.

[0092] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen. The sensor unit includes a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, and a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller. The stylus pen includes a body portion, a tip exposed to the outside from within the body portion, an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core, and a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit. and a counter unit, wherein the controller is for applying a touch driving signal in the plurality of first patterns and receiving a touch sensing signal in the plurality of third patterns, the controller is for applying a stylus pen driving signal in at least one pen driving pattern among the plurality of first patterns and the plurality of third patterns, the controller is for receiving a stylus pen sensing signal from at least one pen sensing pattern among the plurality of first patterns and the plurality of third patterns, and the controller may determine a touch point of the stylus pen between two pen sensing patterns that output two pen sensing signals having maximum and minimum values ​​among the stylus pen sensing signals received from the pen sensing patterns.

[0093] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen. The sensor unit includes a plurality of first patterns that are extended along a first direction and have a first side end electrically connected to the controller, and a plurality of third patterns that are extended in a second direction different from the first direction and have a first side end electrically connected to the controller. The stylus pen includes a body unit, a tip exposed to the outside from within the body unit, an inductor unit including a ferrite core located within the body unit and a coil wound in multiple layers on at least a portion of the ferrite core, and a resonant circuit located within the body unit and electrically connected to the inductor unit. and a capacitor unit forming a capacitance between the first pattern and the third pattern, the controller being for applying a touch driving signal in the first pattern and receiving a touch sensing signal in the third pattern, the controller being for applying a stylus pen driving signal in at least one pen driving pattern among the first pattern and the third pattern, the controller being for receiving a stylus pen sensing signal from at least one pen sensing pattern among the first pattern and the third pattern, and the controller being capable of determining a touch point of the stylus pen between patterns in which signals of two adjacent pen sensing patterns have opposite signs to each other among the received stylus pen sensing signals.

[0094] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen. The sensor unit includes a plurality of first patterns that are extended along a first direction and have a first side end electrically connected to the controller, and a plurality of third patterns that are extended in a second direction different from the first direction and have a first side end electrically connected to the controller. The stylus pen includes a body portion, a tip exposed to the outside from within the body portion, an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core, and a coil located within the body portion and electrically connected to the inductor portion. and a capacitor unit forming a resonant circuit by applying a touch driving signal to the plurality of first patterns and receiving a touch sensing signal to the plurality of third patterns, the controller being for applying a stylus pen driving signal to at least one pen driving pattern among the plurality of first patterns and the plurality of third patterns, the controller being for receiving a stylus pen sensing signal from at least one pen sensing pattern among the plurality of first patterns and the plurality of third patterns, and the controller being capable of differentiating the received stylus pen sensing signal to determine a position on the pen sensing pattern where a differential value is maximum as a touch point of the stylus pen.

[0095] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that can act as a stylus pen, the sensor unit including a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, and a plurality of third patterns extending in a second direction different from the first direction and having a first side end electrically connected to the controller, the stylus pen including a body portion, a tip exposed to the outside from within the body portion, an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core, and a coil located within the body portion and electrically connected to the inductor portion to form a resonant circuit. and a capacitor unit forming a capacitance element including a capacitance value corresponding to a capacitance of the first pattern and a capacitance value corresponding to a capacitance of the third pattern, the controller being for applying a touch driving signal through the plurality of first patterns and receiving a touch sensing signal through the plurality of third patterns, the controller being for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns and the plurality of third patterns, the controller being for receiving a stylus pen sensing signal from at least one pen sensing pattern among the plurality of first patterns and the plurality of third patterns, the controller being for receiving a differential signal from two adjacent pen sensing patterns among the pen sensing patterns, and determining a touch point of a stylus pen based on a maximum value or a minimum value of the received differential signal.

[0096] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen. The sensor unit further includes a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in another second direction perpendicular to the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein second side ends of at least some of the second patterns or at least some of the fourth patterns are electrically connected to each other. The stylus pen includes a body portion, an inductor portion including a tip exposed from within the body portion to the outside, a ferrite core located within the body portion, and a coil wound in multiple layers on at least a portion of the ferrite core, and the body portion includes a coil wound in multiple layers on at least a portion of the ferrite core. a capacitor unit located within the touch panel and electrically connected to the inductor unit to form a resonant circuit, the controller is for applying a touch driving signal through the plurality of first patterns and receiving a touch sensing signal through the plurality of third patterns, the controller is for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns, the plurality of second patterns, the plurality of third patterns, the plurality of fourth patterns, the plurality of third patterns, the plurality of fourth patterns, the plurality of first patterns, the plurality of fourth ...

[0097] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen, the sensor unit further includes a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in another second direction perpendicular to the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein second side ends of at least some of the plurality of second patterns or at least some of the plurality of fourth patterns are electrically connected to each other, and the stylus pen further includes an inductor including a body portion, a tip exposed to the outside from within the body portion, a ferrite core located within the body portion, and a coil wound in multiple layers on at least a portion of the ferrite core. the inductor unit is disposed within the body unit and is electrically connected to the inductor unit to form a resonant circuit, the controller is for applying a touch driving signal through the plurality of first patterns and receiving a touch sensing signal through the plurality of third patterns, the controller is for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns, the plurality of second patterns, the plurality of third patterns, the plurality of fourth patterns, the controller is for selecting at least one pattern among the plurality of first patterns, the plurality of fourth patterns, as a pen sensing pattern, and sensing a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern, the controller is for receiving a stylus pen sensing signal from the pen sensing pattern, and the controller may determine a touch point of the stylus pen between patterns in which signals of two adjacent pen sensing patterns among the received stylus pen sensing signals have opposite signs.

[0098] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen, the sensor unit further includes a plurality of first patterns extending along a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in another second direction perpendicular to the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein second side ends of at least some of the second patterns or at least some of the fourth patterns are electrically connected to each other, and the stylus pen includes a body portion, a tip exposed to the outside from within the body portion, a ferrite core located within the body portion, and a coil wound in multiple layers on at least a portion of the ferrite core. the controller is configured to apply a stylus pen driving signal through at least one of the first through fourth patterns as a pen driving pattern and sense a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern; and the controller is configured to receive a stylus pen sensing signal from the pen sensing pattern, and the controller is configured to differentiate the received stylus pen sensing signal and determine a position on the pen sensing pattern where a differential value is maximum as a touch point of the stylus pen.

[0099] According to another embodiment of the present invention, there is provided a controller for controlling the sensor unit in a touch input device that includes a sensor unit and can act as a stylus pen. The sensor unit further includes a plurality of first patterns extending in a first direction and having a first side end electrically connected to the controller, a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns, a plurality of third patterns extending in another second direction perpendicular to the first direction and having a first side end electrically connected to the controller, and a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, wherein second side ends of at least some of the second patterns or at least some of the fourth patterns are electrically connected to each other. The stylus pen includes a body portion, an inductor portion including a tip exposed to the outside from within the body portion, a ferrite core located within the body portion, and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor unit located within the body unit and electrically connected to the inductor unit to form a resonant circuit, the controller is for applying a touch driving signal through the plurality of first patterns and receiving a touch sensing signal through the plurality of third patterns, the controller is for applying a stylus pen driving signal through at least one pen driving pattern among the plurality of first patterns through fourth patterns, the controller selects at least one pattern among the plurality of first patterns through fourth patterns as a pen sensing pattern and senses a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern, the controller is for receiving a stylus pen sensing signal from the pen sensing pattern, the controller receives a differential signal from two adjacent pen sensing patterns among the pen sensing patterns, and may determine a touch point of the stylus pen based on a maximum or minimum value of the received differential signal.

[0100] Here, the ferrite core may have a dielectric constant of 1000 or less, the coil may be wound such that adjacent winding layers are alternately wound, and the coil may include a wire in a form in which two or more insulated wires are wrapped around the wire.

[0101] Here, the coil may be wound such that adjacent winding layers are inclined in a zigzag manner.

[0102] Here, the ferrite core may contain nickel.

[0103] Here, the coil may use a Litz wire.

[0104] Here, the magnetron may further include a bobbin covering at least a portion of the ferrite core, and the coil may be wound around at least a portion of the bobbin.

[0105] Here, the inductor section may include two or more inductors connected in series.

[0106] Here, the inductor portion may further include a conductive blocking member positioned over at least a portion of the inductor portion.

[0107] Here, the blocking member may include a slit that blocks generation of eddy currents, and both ends of the blocking member may be spaced apart along a first direction by the slit, and the first direction may be configured to be a direction in which eddy currents are generated.

[0108] Here, any one of the plurality of second patterns and the plurality of fourth patterns may be the pen driving pattern or the pen sensing pattern.

[0109] Here, the remaining one of the plurality of second patterns and the plurality of fourth patterns may be electrically floating.

[0110] Here, the touch driving signal may be applied to drive the stylus pen, or the stylus pen sensing signal may be received through a pattern different from the pattern for applying the touch driving signal and the pattern for receiving the touch sensing signal.

[0111] Here, at least one of the first patterns and the third patterns may be the pen driving pattern.

[0112] Here, the stylus pen driving signal is applied through a pattern that is the same as a pattern for applying the touch driving signal or a pattern for receiving the touch sensing signal.

[0113] Here, at least one of the first patterns and the third patterns may be for receiving the stylus pen sensing signal.

[0114] Here, the stylus pen sensing signal may be received through the same pattern as the pattern for applying the touch driving signal or the pattern for receiving the touch sensing signal.

[0115] Here, the first and second patterns are longer in length than the third and fourth patterns.

[0116] Here, at least one of the first to fourth patterns may be for applying a stylus pen driving signal for driving the stylus pen and for sensing a detection signal for detecting the stylus pen.

[0117] Here, the first pattern may include patterns 1a and 1b arranged along the first direction, and the second pattern may include patterns 2a and 2b arranged along the first direction, and second side ends of at least some of the multiple 2a patterns may be electrically connected, second side ends of at least some of the multiple 2b patterns may be electrically connected, and second side ends of at least some of the multiple 2a patterns and second side ends of at least some of the multiple 2b patterns may face each other.

[0118] Here, the first pattern and the second pattern may be configured to have a length longer than a length of the third pattern and the fourth pattern.

[0119] Here, at least one of the first to fourth patterns may include a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions.

[0120] Here, at least a portion of the main pattern portion may have a diamond shape.

[0121] Here, the main pattern portion of the second pattern may have a shape corresponding to that of the main pattern portion of the first pattern, and the main pattern portion of the fourth pattern may have a shape corresponding to that of the main pattern portion of the third pattern.

[0122] Here, the first pattern or the third pattern may have an opening, and the second pattern or the fourth pattern may be disposed inside the opening of the first pattern or the third pattern, respectively.

[0123] Here, the first pattern or the third pattern may be configured to surround the second pattern or the fourth pattern, respectively.

[0124] Here, the first pattern and the second pattern may be disposed in the same layer, or the third pattern and the fourth pattern may be disposed in the same layer.

[0125] Here, at least a portion of the first pattern and at least a portion of the second pattern may be disposed on a first layer, and at least a portion of the third pattern and at least a portion of the fourth pattern may be disposed on a second layer.

[0126] Here, second side ends of the plurality of second patterns and the plurality of fourth patterns may be electrically connected to each other through vias.

[0127] Here, the controller may be for applying a drive signal for touch sensing to at least one first pattern among the plurality of first patterns, and receiving a sensing signal from at least one third pattern among the plurality of third patterns.

[0128] Here, the controller may be for connecting the plurality of second patterns or the plurality of fourth patterns to a plurality of driving circuit units.

[0129] Here, the controller may include a recording medium having a program recorded thereon for executing the steps of applying a driving signal for touch sensing to at least one first pattern among the plurality of first patterns and receiving a sensing signal from at least one third pattern among the plurality of third patterns.

[0130] Here, the controller may include a recording medium having a program recorded thereon for executing the step of connecting the second patterns or the fourth patterns to a plurality of driving circuits.

[0131] Here, the touch sensing device may further include a plurality of drive circuits for touch sensing and a plurality of sensing circuits for touch sensing, and the controller may be configured to control the plurality of drive circuits for touch sensing to apply the touch drive signals to at least one of the plurality of first patterns or the plurality of third patterns via the plurality of drive circuits for touch sensing, and to receive the touch sensing signals received from at least one of the plurality of first patterns or the plurality of third patterns via the plurality of sensing circuits for touch sensing.

[0132] Here, the touch panel may further include a plurality of pen driving circuit units, and the controller may be configured to control the plurality of pen driving circuit units to apply a signal identical to the touch driving signal to the plurality of second patterns or the plurality of fourth patterns via the plurality of pen driving circuit units.

[0133] Here, the controller may be configured to output the stylus pen driving signal to at least one pen driving pattern among the first to fourth patterns, and to output a driving signal opposite to the stylus pen driving signal to at least another driving pattern among the one or more patterns.

[0134] Here, the controller may include a recording medium having recorded thereon a program for executing the steps of outputting the stylus pen driving signal to at least one pen driving pattern among the plurality of first through fourth patterns, and outputting a driving signal opposite to the stylus pen driving signal to at least another driving pattern among the plurality of patterns.

[0135] Here, the device may further include a plurality of pen driving circuit units, and the controller may be configured to control so that the stylus pen driving signal is applied to at least one pen driving pattern via at least one of the plurality of pen driving circuit units, and a signal opposite to the stylus pen driving signal is applied to at least one other pen driving pattern via at least another pen driving circuit unit among the plurality of pen driving circuit units.

[0136] Here, the controller may be for controlling the detection of the stylus pen based on an output value from at least one of the pen sensing patterns and an output value from at least one of the pen sensing patterns different from the pen sensing pattern.

[0137] Here, the controller may include a recording medium having recorded thereon a program for executing a step of detecting the pen based on an output value from at least one of the pen detection patterns and an output value from at least one of the pen detection patterns different from the pen detection pattern.

[0138] Here, the device may further include a plurality of pen sensing detection circuit units, and the controller may be for controlling to detect the pen based on an output value from at least one pen sensing pattern among the pen sensing patterns sensed through at least one pen sensing detection circuit unit among the plurality of pen sensing detection circuit units, and an output value from at least one pen sensing pattern among the pen sensing patterns different from the pen sensing pattern sensed through at least another pen sensing circuit unit among the plurality of pen sensing detection circuit units.

[0139] Here, at least a portion of the sensing circuit unit for pen sensing may be used for touch sensing.

[0140] Here, the semiconductor device may further include a capacitor connected to a pattern at the second end of the plurality of second patterns or the plurality of fourth patterns.

[0141] Here, the second pattern may be a bar pattern disposed within the first pattern and extending in a first direction, and the fourth pattern may be a bar pattern disposed within the third pattern and extending in a second direction. The semiconductor device may further include: a plurality of fifth patterns disposed between the plurality of first patterns, having a shape corresponding to and overlapping with a main pattern portion of the third pattern, and electrically connected to the fourth pattern; a capacitor connected to a pattern at the second end portion of the plurality of fifth patterns; a plurality of sixth patterns disposed between the plurality of third patterns, having a shape corresponding to and overlapping with a main pattern portion of the first pattern, and electrically connected to the second pattern; and a capacitor connected to a pattern at the second end portion of the plurality of sixth patterns.

[0142] Here, the touch input device may further include at least one trace that is directly connected to where the patterns located at the second end are electrically connected to each other and is disposed outside an active area of ​​the touch input device.

[0143] Here, the sensor unit may further include at least one of a fifth pattern and a sixth pattern, the fifth pattern being disposed on a layer different from a layer on which any one of the third pattern and the fourth pattern is disposed, electrically connected to the one of the third pattern and the fourth pattern, and disposed so as to overlap in the vertical direction with at least a portion of the remaining one of the third pattern and the fourth pattern; and the sixth pattern being disposed on a layer different from a layer on which any one of the first pattern and the second pattern is disposed, electrically connected to the one of the first pattern and the second pattern, and disposed so as to overlap in the vertical direction with at least a portion of the remaining one of the first pattern and the second pattern.

[0144] Here, the first pattern and the second pattern may be arranged on different layers, and the first pattern may be arranged to overlap a portion of the second pattern in the vertical direction, or the third pattern and the fourth pattern may be arranged on different layers, and the third pattern may be arranged to overlap a portion of the fourth pattern in the vertical direction.

[0145] The pen sensing pattern may further include a plurality of traces connecting the pen sensing pattern and the controller, and directions of current flowing through two of the plurality of traces corresponding to the two pen sensing patterns may be opposite to each other.

[0146] Here, the sensor may further include a magnetic field shielding layer formed in a layer different from that of the sensor unit.

[0147] Here, the display device may further include a display panel, the display panel having a folding region that is bent based on a folding axis and a non-folding region that is separated by the folding region, and the magnetic field shielding layer may be located corresponding to both the folding region and the non-folding region.

[0148] Here, the display panel may further include a folding region that is bent based on a folding axis and a non-folding region that is spaced apart from the folding region, and the magnetic field shielding layer may be positioned to correspond to and spaced apart from the non-folding region. Effect of the Invention

[0149] According to at least one of the embodiments of the present disclosure, an optimal resonant circuit structure of a stylus pen is presented, which has an advantage that a sufficient output signal can be generated even with a thin diameter.

[0150] At least one of the embodiments of the present disclosure has an advantage in that it is possible to provide a stylus pen that is robust against external factors.

[0151] Advantageously, the touch input device according to the embodiment of the present invention can detect the touch position, drive the stylus pen, and detect the position of the stylus pen.

[0152] Also, the problem of the output voltage of the sensing circuit varying depending on the position of the stylus pen can be solved.

[0153] In addition, when the screen of the touch input device is expanded to the size of the screen of a tablet PC, there is an advantage that the operating frequency bandwidth of the touch driving signal and the pen driving signal can be expanded.

[0154] In addition, when the screen of the touch input device is expanded to the size of the screen of a tablet PC, there is an advantage that attenuation of the pen sensing signal can be mitigated.

[0155] In addition, there is an advantage in that the manufacturing costs of the touch input device can be reduced.

[0156] Another advantage is that it can provide a thinner and smaller form factor.

[0157] Another advantage is that the signal-noise ratio (SNR) of the signal output from the stylus pen can be improved.

[0158] Another advantage is that the sensitivity of receiving touch input can be improved.

[0159] Another advantage is that the touch position can be calculated more accurately.

[0160] Another advantage is that palm rejection can be performed.

[0161] The effects of the present invention are not limited to those described above, and better or unique effects can be achieved for each embodiment in the "Description of Embodiments" described below. [Brief description of the drawings]

[0162] [Figure 1a] FIG. 1a is a conceptual diagram showing a pen and touch input system including a stylus pen and a touch input device. [Figure 1b] FIG. 1b is a diagram for explaining an uplink and a downlink in the pen and touch input system shown in FIG. 1a. [Figure 1c] FIG. 1c is a diagram illustrating the spacing between the + drive channel and the - drive channel in the uplink. [Figure 1d] FIG. 1d is a conceptual diagram illustrating another embodiment of a pen and touch input system including a stylus pen and a touch input device. [Figure 2a] FIG. 2a is a diagram illustrating a schematic diagram of a signal transmission operation between a stylus pen and a touch input device. [Figure 2b] FIG. 2b is a schematic diagram of a layered structure of a portion of the touch input device of FIG. 1a. [Figure 2c] FIG. 2c is a schematic diagram of a layered structure of a portion of the touch input device of FIG. 1d. [Figure 2d] FIG. 2d is a schematic diagram of a layered structure of a portion of the touch input device of FIG. 1d. [Diagram 3] FIG. 3 is a schematic block diagram of a touch input device. [Figure 4] FIG. 4 is a diagram illustrating a stylus pen according to an embodiment. [Diagram 5] FIG. 5 is a diagram specifically showing an inductor portion of a stylus pen. [Figure 6] FIG. 6 is a graph showing the inductance and Q value as a function of frequency. [Figure 7] FIG. 7 is a drawing showing enameled wire and litz wire. [Figure 8] FIG. 8 is a drawing showing enameled wire and litz wire. [Figure 9] FIG. 9 is a diagram showing a multi-layer winding scheme. [Figure 10] FIG. 10 is a graph showing the results of a comparative experiment. [Figure 11] FIG. 11 is a graph showing the results of a comparative experiment. [Figure 12] FIG. 12 is a graph showing the results of a comparative experiment. [Figure 13] FIG. 13 is a schematic diagram illustrating how an output voltage (Vout) of a CVA (Capacitor Voltage Amplitude) changes depending on the position of a stylus pen 10 on a conventional flexible display panel. [Figure 14] FIG. 14 is a diagram for explaining, through current sensing, that the output voltages (Vout11, Vout2) of the CVA differ depending on the position of the pen 10 in FIG. [Figure 15] FIG. 15 is a diagram for explaining, through voltage sensing, that the output voltages (Vout1, Vout2) of the CVA differ depending on the position of the pen 10 in FIG. [Figure 16] FIG. 16 is a schematic diagram of a sensor unit 100 of the touch input device according to the first embodiment of the present invention. [Figure 17] FIG. 17 is a schematic diagram showing an example of the sensor unit 100 shown in FIG. [Figure 18] FIG. 18 is a schematic diagram showing another example of the sensor unit 100 shown in FIG. [Figure 19] FIG. 19 is a schematic diagram of a sensor unit 100' of a touch input device according to a second embodiment of the present invention. [Figure 20] FIG. 20 is a schematic diagram showing an example of the sensor unit 100' shown in FIG. [Figure 21]FIG. 21 is a schematic diagram showing another example of the sensor unit 100' shown in FIG. [Figure 22] FIG. 22 is a schematic diagram showing still another example of the sensor unit 100' shown in FIG. [Diagram 23] FIG. 23 is a schematic diagram showing still another example of the sensor unit 100' shown in FIG. [Figure 24] FIG. 24 is a diagram showing an embodiment of the touch input device shown in FIG. [Diagram 25] FIG. 25 is a diagram illustrating a method in which the controller 300 of FIG. 24 applies a pen driving signal for driving a stylus pen to a plurality of second patterns 102A. [Figure 26] 26(a) to (f) are diagrams for roughly explaining the operation principle of the touch input device of FIG. 24 in a stylus sensing mode. [Figure 27] FIG. 27 is a diagram showing an embodiment of the touch input device shown in FIG. [Figure 28] FIG. 28 is a diagram showing an embodiment of the touch input device shown in FIG. [Figure 29] FIG. 29 is a diagram showing an embodiment of the touch input device shown in FIG. [Diagram 30] FIG. 30 is a schematic diagram of a modified sensor unit that can replace the sensor units according to the various embodiments described above. [Diagram 31] FIG. 31 shows a modification of the sensor unit shown in FIG. [Diagram 32] FIG. 32 is a variation of the sensor portion according to the various embodiments previously described. [Diagram 33] FIG. 33 is a variation of the sensor portion according to the various embodiments previously described. [Diagram 34] FIG. 34 is a variation of the sensor portion according to the various embodiments previously described. [Diagram 35] FIG. 35 is a variation of the sensor portion according to the various embodiments previously described. [Diagram 36] FIG. 36 is a variation of the sensor portion according to the various embodiments previously described. [Figure 37] FIG. 37 is a variation of the sensor portion according to the various embodiments previously described. [Figure 38] FIG. 38 is a variation of the sensor portion according to the various embodiments previously described. [Figure 39] FIG. 39 is a variation of the sensor portion according to the various embodiments previously described. [Diagram 40] FIG. 40 is a diagram illustrating a first modified example of the fifth pattern 105 shown in FIG. [Diagram 41] FIG. 41 is a modification of FIG. [Diagram 42] FIG. 42 is a diagram illustrating a modified example of the fifth pattern 105' shown in FIG. [Diagram 43] FIG. 43 is a modification of FIG. [Diagram 44] FIG. 44 is a diagram for explaining a modified example of the third pattern 103 and the fourth pattern 104 in the sensor unit as shown in FIG. 34 or FIG. [Diagram 45] FIG. 45 is a diagram for explaining a modified example of the third pattern 103 and the fourth pattern 104 in the sensor unit as shown in FIG. 34 or FIG. [Diagram 46] FIG. 46 is a diagram illustrating a portion of a touch input device according to yet another embodiment. [Figure 47] FIG. 47 is a diagram illustrating an example of an arrangement of electrodes (or patterns) and traces of a touch unit according to an embodiment. [Figure 48] FIG. 48 is a diagram illustrating another example of an arrangement of electrodes (or patterns) and traces of a touch unit according to an embodiment. [Figure 49] FIG. 49 illustrates a case where a stylus pen is positioned above a sensor unit of a touch unit according to an embodiment. [Figure 50]FIG. 50 is a graph showing a method of measuring a signal of a touch portion according to the embodiment shown in FIGS. [Figure 51] FIG. 51 is a graph showing a sensing signal from a stylus pen according to one embodiment. [Figure 52] FIG. 52 is a graph showing a sensing signal from a stylus pen according to one embodiment. [Figure 53] FIG. 53 is a graph showing a sensing signal by a stylus pen according to another embodiment. [Figure 54] FIG. 54 is a graph showing a sensing signal by a stylus pen according to another embodiment. [Figure 55] FIG. 55 is a diagram illustrating a case where a stylus pen is positioned above a sensor unit of a touch unit according to an embodiment. [Figure 56] FIG. 56 is a graph showing a sensing signal from a stylus pen according to one embodiment. [Figure 57] FIG. 57 is a graph showing a sensing signal from a stylus pen according to one embodiment. [Figure 58] FIG. 58 is a graph showing a sensing signal by a stylus pen according to another embodiment. [Figure 59] FIG. 59 is a graph showing a sensing signal by a stylus pen according to another embodiment. [Figure 60] FIG. 60 is a schematic block diagram of a touch input device. [Figure 61] FIG. 61 is a diagram illustrating a part of a touch unit according to an embodiment. [Figure 62] FIG. 62 is a diagram showing an example of an arrangement of electrodes (or patterns) and traces of a touch unit according to another embodiment. [Figure 63] FIG. 63 is a schematic diagram for explaining a method of driving a stylus pen in the touch input device 2 or the stylus driving device according to the present invention. [Figure 64]FIG. 64 is a diagram for specifically explaining a method for activating a stylus pen in the touch input device 2 or the stylus driving device according to the present invention. [Figure 65] FIG. 65 is a schematic diagram for explaining a stylus signal detection method in the touch input device 2 according to the present invention. [Figure 66] FIG. 66 is a diagram for specifically explaining a method of detecting a signal from a stylus pen in the touch input device 2 according to an embodiment of the present invention. [Figure 67] FIG. 67 is a diagram for specifically explaining a method of detecting a signal from a stylus pen in the touch input device 2 according to an embodiment of the present invention. [Figure 68] FIG. 68 is a diagram for specifically explaining a method of detecting a signal from a stylus pen in the touch input device 2 according to an embodiment of the present invention. [Figure 69] FIG. 69 illustrates various wiring structures of the second electrode in a touch input device according to an embodiment of the present invention. [Figure 70] FIG. 70 shows an experimental process and results for verifying the signal detection capability of a stylus using a touch input device according to an embodiment of the present invention. [Figure 71] FIG. 71 shows an experimental process and results for verifying the signal detection capability of a stylus using a touch input device according to an embodiment of the present invention. [Figure 72] FIG. 72 is a block diagram showing the touch unit and the host. [Figure 73] FIG. 73 is a diagram illustrating an example of touch data provided from the touch unit to the host. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0163] Hereinafter, various embodiments of the present document will be described with reference to the attached drawings. However, this is not intended to limit the technology described in this document to a specific embodiment, but should be understood to include various modifications, equivalents, and / or alternatives of the embodiments of this document. In connection with the description of the drawings, similar reference numerals may be used for similar components.

[0164] In addition, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and the present invention is not necessarily limited to those shown. In the drawings, thicknesses are enlarged to clearly show various layers and regions. In the drawings, thicknesses of some layers and regions are exaggerated for convenience of explanation.

[0165] In addition, when a part such as a layer, film, region, or plate is said to be "on" a different part, this includes not only the case where it is "directly on" the different part, but also the case where there is another different part in between. Conversely, when a part is said to be "directly on" a different part, it means that there is no different part in between. In addition, being "on" a reference part means being located above or below the reference part, and does not necessarily mean being located "on" the side opposite to gravity.

[0166] In this document, the terms "have," "may have," "include," or "may include" indicate the presence of a given feature (e.g., a value, a function, an operation, or a component such as a part) and do not exclude the presence of additional features.

[0167] In this document, phrases such as "A or B," "at least one of A and / or B," or "one or more of A and / or B" may include all possible combinations of the items listed together. For example, "A or B," "at least one of A and B," or "at least one of A or B" can refer to all of the following: (1) at least one A, (2) at least one B, or (3) at least one A and at least one B.

[0168] The terms "first," "second," "first," or "second" used herein may modify various components regardless of order and / or importance, and are used only to distinguish one component from another, and do not limit the components. For example, a first user device and a second user device may indicate different user devices regardless of order or importance. For example, a first component may be named a second component, and similarly, a second component may be named instead of a first component, without departing from the scope of the rights described herein.

[0169] When a component (e.g., a first component) is referred to as being "operatively or communicatively coupled with / to" or "connected to" another component (e.g., a second component), it should be understood that a component may be directly coupled to a different component or may be coupled through another component (e.g., a third component). Conversely, when a component (e.g., a first component) is referred to as being "directly coupled with" or "directly connected to" another component (e.g., a second component), it should be understood that there is no other component (e.g., a third component) between the component and the different component.

[0170] As used herein, the phrase "configured to" may be used variably, e.g., "suitable for," "having the capacity to," "designed to," "adapted to," "made to," or "capable of," depending on the context. The term "configured to" does not necessarily mean only something that is "specifically designed to" in terms of hardware. Instead, in some contexts, the phrase "a device configured to" may mean that the device is "capable of" working with different devices or components. For example, the phrase "a processor configured to perform A, B, and C" may mean a dedicated processor for performing those operations (e.g., an embedded processor) or a generic-purpose processor (e.g., a CPU or application processor) that is capable of performing those operations by executing one or more software programs stored in a memory device.

[0171] The terms used in this document are merely used to describe a particular embodiment and may not be intended to limit the scope of other embodiments. A singular expression may include a plural expression unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the art described in this document. Among the terms used in this document, terms defined in a general dictionary may be interpreted as having the same or similar meaning as the meaning they have in the context of the related art, and unless clearly defined in this document, they are not interpreted as ideal or overly formal. In some cases, even terms defined in this document may not be interpreted to exclude the embodiments of this document.

[0172] The touch input device according to various embodiments of the present document may include at least one of, for example, a smartphone, a tablet personal computer, a mobile phone, a video phone, an e-book reader, a laptop personal computer, a netbook computer, a mobile medical device, a camera, or a wearable device. According to various embodiments, the wearable device may include at least one of an accessory type (e.g., a watch, a ring, a bracelet, an anklet, a necklace, glasses, contact lenses, or a head-mounted device (HMD)), a textile or clothing integrated type (e.g., electronic clothing), a body-attached type (e.g., a skin pad or a tattoo), or a biologically implanted type (e.g., an implantable circuit).

[0173] Hereinafter, a controller for controlling a sensor unit in a touch input device that includes a sensor unit and can function as a stylus pen will be described as a controller according to an embodiment of the present invention with reference to the accompanying drawings.

[0174] In addition, with reference to the necessary drawings, a touch input device including a sensor unit according to an embodiment of the present invention and a control unit that controls the sensor unit, and a pen and touch input system including a stylus pen that can operate with the touch input device will be described in detail.

[0175] FIG. 1a is a conceptual diagram showing a pen and touch input system including a stylus pen and a touch input device.

[0176] 1a, a stylus pen 10 can receive (or uplink) signals output from a touch input device 2 or a touch screen 20 in the vicinity of the touch screen 20 of the touch input device 2, and can transmit (or downlink) signals to the touch screen 20. Here, the touch input device 2 includes a sensor unit and a control unit for controlling the sensor unit, and interacts with the stylus pen 10, and therefore may also be named a "pen and touch input device."

[0177] FIG. 1b is a diagram for explaining an uplink and a downlink in the pen and touch input system shown in FIG. 1a.

[0178] Referring to the left side of Fig. 1b, in the uplink, an electromotive force (V2 or Vemf) is generated in the coil inside the stylus pen 10 of Fig. 1a. Referring to the right side of Fig. 1b, in the downlink, an electromotive force (V1 or Vemf) is generated in the sensor part of the touch screen 20. That is, the coil inside the stylus pen and the sensor part of the touch input device act as a transformer with respect to each other.

[0179] FIG. 1c is a diagram illustrating the spacing between the + drive channel and the - drive channel in the uplink.

[0180] Referring to FIG. 1c, in the uplink, the interval between the + drive channel and the - drive channel has an optimal interval depending on the shape and position of the inductor inside the stylus pen. As a general design standard for a stylus pen, it is preferable that the interval between the + drive channel and the - drive channel is at least one channel apart (4 mm).

[0181] FIG. 1d is a schematic diagram illustrating another embodiment of a pen and touch input system including a stylus pen and a touch input device.

[0182] 1d, the touch input device 2 is foldable. The stylus pen 10 can receive a signal output from the touch input device 2 or the touch screen 20 in the vicinity of the touch screen 20 of the foldable touch input device 2 and transmit a signal to the touch screen 20.

[0183] In the rectangular foldable touch input device 2 or components included therein such as the touch screen 20, the long side located on the left side on a plane is referred to as the first long side LS1, the long side located on the right side is referred to as the second long side LS2, the short side located on the upper side is referred to as the first short side SS1, and the short side located on the lower side is referred to as the second short side SS2.

[0184] The foldable touch input device 2 may be bent along a predetermined folding direction based on a folding axis AXIS_F that crosses the first short side SS1 and the second short side SS2. That is, the foldable touch input device 2 may be capable of switching between a folded state and an unfolded state along the folding direction based on the folding axis AXIS_F.

[0185] FIG. 2a is a diagram illustrating a schematic diagram of a signal transmission operation between a stylus pen and a touch input device.

[0186] Referring to FIG. 2a (a), the touch screen 20a includes a digitizer 29, a display panel 251, a sensor portion 21, and a window 22.

[0187] In the case of an EMR (Electro-Magnetic Resonance) type pen among passive stylus pens, when a digitizer 29 transmits a magnetic signal B to an EMR type stylus pen 10a, a resonant circuit included in the stylus pen 10a resonates with the magnetic signal B. Then, a digitizer 33 receives an input of the resonated magnetic signal B from the stylus pen 10a.

[0188] The digitizer 29 may be attached under the display panel 251 and includes a flexible printed circuit board (FPCB) on which multiple conductive antenna loops are formed, and a ferrite sheet that blocks the magnetic field generated by the antenna loops and blocks eddy currents that may be generated in other electrical elements and components when the antenna loop forms a magnetic field.

[0189] The FPCB has a plurality of antenna loops in a plurality of layers for detecting the position where the resonant signal is input. Each antenna loop overlaps with at least one other antenna loop in the Z-axis direction. This makes the FPCB thick. Therefore, when the digitizer 29 is used, it is difficult to make the touch input device 2 thinner and more compact.

[0190] When such a digitizer 29 is mounted on the foldable / flexible touch input device 2, deformation may occur in the FPCB attached to the folded area when folding occurs. Repeated folding may cause stress to be applied to the wiring member forming the antenna loop, which may eventually result in damage to the wiring member. The ferrite sheet blocks the influence of the magnetic field generated by the antenna loop on the inside of the touch input device 2. The ferrite sheet is also thick, and is easily deformed when the touch input device 2 is folded, and may be damaged by repeated folding.

[0191] Referring to FIG. 2(b), the touch screen 20b includes a display panel 251, a sensor portion 21, and a window 22.

[0192] In the case of the stylus pen 10 including a resonant circuit, when the electrode (or pattern) of the sensor unit 21 transmits a magnetic signal B to the stylus pen 10, the resonant circuit included in the stylus pen 10 resonates with the magnetic signal B. Then, the electrode (or pattern) of the sensor unit 21 can receive an input of the resonated electromagnetic signal (E and / or B) from the stylus pen 10. When the electrode (or pattern) of the sensor unit 21 is formed of a metal mesh with low resistance, it is possible to detect the magnetic signal from the stylus pen 10.

[0193] Similarly, compared to the digitizer 29, the touch screen 20b does not require an additional unit or module for transmitting magnetic signals to the stylus pen 10, so the touch screen 20b can be made thinner, which is advantageous in terms of manufacturing costs.

[0194] Referring to FIG. 2(c), a touch screen 20c includes a loop coil 264, a display panel 251, a sensor portion 21, and a window 22.

[0195] In the case of the stylus pen 10 including a resonant circuit, when the loop coil 264 transmits a magnetic signal B to the stylus pen 10, the resonant circuit included in the stylus pen 10 resonates with the magnetic signal B. Then, the electrode (or pattern) of the sensor unit 21 can receive an input of the resonated electromagnetic signal (E and / or B) from the stylus pen 10.

[0196] Compared to the digitizer 29, the loop coil 264 does not receive the magnetic signal B for detecting the touch position, and therefore the wiring structure is simple and the touch screen 20c can be made thinner. This allows the touch input device 2 to be made thinner and more compact. In addition, the loop coil 264 can be formed in various sizes and positions, and therefore such a touch screen 20c can be applied to the foldable / flexible touch input device 2.

[0197] The loop coil 264 may include a substrate on which the antenna loop is located and a ferrite sheet. The antenna loop may be made of a conductive material such as copper or silver. The antenna loop may be located on the same layer as the sensor unit 21 in addition to the substrate, in which case the antenna loop may be made of a conductive material exhibiting high transmittance and low impedance such as metal mesh, ITO, graphene, silver nanowire, etc. The antenna loop may also be located under a window, in which case the substrate may not be included in the loop coil 264.

[0198] In the above, the sensor unit 21 may include a number of electrodes (or patterns) for detecting touch coordinates. For example, the sensor unit 21 may include a number of first touch electrodes for detecting touch coordinates in a first direction and a number of second touch electrodes for detecting touch coordinates in a second direction intersecting the first direction. In FIG. 2, the sensor unit 21 is illustrated in one layer, but the first touch electrodes and the second touch electrodes may be located in different layers, may be located overlapping each other, or may not be located overlapping each other, and a separate layer may be interposed between the first touch electrodes and the second touch electrodes, and are not limited thereto.

[0199] Referring to (d) of FIG. 2a, a touch screen 20d includes a display panel 251, a sensor portion 21, and a window 22.

[0200] In the case of an active stylus pen 10' including a resonant circuit, the resonant circuit included in the active stylus pen 10' resonates using a power source (for example, a battery (including a secondary battery) for storing power and a capacitor such as an EDLC (electric double layered capacitor)) in the active stylus pen 10'. Then, the electrodes of the sensor unit 21 can receive the input of the resonated electromagnetic signal (E and / or B) from the stylus pen 10'. When the electrodes (or patterns) of the sensor unit 21 are formed of a metal mesh having a low resistance, it is possible to detect the magnetic signal from the stylus pen 10'. The active stylus pen 10' may include not only a resonant circuit for generating an electromagnetic signal, but also a circuit for outputting an electromagnetic signal (E and / or B) having a predetermined frequency using a power source. The active stylus pen 10' may also include both the resonant circuit and a circuit for outputting an electromagnetic signal (E and / or B) having a predetermined frequency.

[0201] The touch screen 20d can receive an electromagnetic signal from the stylus pen 10' without transmitting a magnetic signal to the stylus pen 10'. That is, the touch screen 20d does not require an additional unit or module for generating a signal for resonating a resonant circuit included in the stylus pen 10', so the touch screen 20d can be made thinner and smaller, and is advantageous in terms of power consumption and manufacturing costs.

[0202] Next, with reference to Figures 2b to 2d, the structure of the touch screen 20b of Figure 2a(b) will be described in detail.

[0203] FIG. 2b is a schematic diagram of a layered structure of a portion of the touch input device of FIG. 1a.

[0204] 2b, the display panel 251 may include a circuit driving layer 2512 disposed on a substrate 2510. The circuit driving layer 2512 may include circuits for driving the light emitting layer 2514 of the pixels that display images. For example, the circuit driving layer 2512 may include a plurality of thin film transistors and a capacitor.

[0205] The light-emitting layer 2514 may be disposed on the circuit driving layer 2512. The light-emitting layer 2514 may include an organic light-emitting layer. The light-emitting layer 2514 may emit light with various luminance levels according to a driving signal transmitted from the circuit driving layer 2512.

[0206] A common electrode layer 2516 may be disposed on the light emitting layer 2514. The common electrode layer 2516 may have at least one opening in the form of a slit.

[0207] An encapsulation layer (not shown) may be disposed on the common electrode layer 2516. The encapsulation layer (not shown) may include an inorganic film or a laminated film of an inorganic film and an organic film. In another example, a glass film, a sealing film, or the like may be applied as the encapsulation layer (not shown).

[0208] A touch electrode layer 21 or a touch electrode may be disposed on the encapsulation layer (not shown). The touch electrode layer 21 may function as a touch member as a layer that recognizes a touch input. The touch electrode layer 21 may include a plurality of touch areas and touch electrodes. The touch electrode layer 21 may also be called a "sensor unit" or a "sensor layer" since it recognizes a touch input from an object such as a finger or a stylus pen.

[0209] A polarizing layer 23 may be disposed on the touch electrode layer 21. The polarizing layer 23 may serve to reduce external light reflection. The polarizing layer 23 may be attached onto the touch electrode layer 21 via an adhesive layer. The polarizing layer 23 may be omitted.

[0210] A protective layer 22 may be disposed on the polarizing layer 23. The protective layer 22 may include, for example, a window member or a cover layer. The protective layer 22 may be adhered onto the polarizing layer 23 by an optically clear adhesive or the like.

[0211] A magnetic field shielding layer 24 may be disposed under the display panel 251. The magnetic field shielding layer 24 may include a ferrite sheet that blocks a magnetic field. Alternatively, the magnetic field shielding layer 24 may include ferrite powder adhered under the substrate 2510. The magnetic field shielding layer 24 can block eddy currents that may be generated from other electrical elements and components when the touch electrode layer 21 and / or the stylus pen 10 form a magnetic field.

[0212] 2c and 2d are schematic diagrams illustrating a layered structure of a portion of the touch input device of FIG. 1d.

[0213] The stacked structure of FIG. 2c is the same as the stacked structure of FIG. 2b, but when the foldable touch input device 2 is folded based on the folding axis AXIS_F, a magnetic field shielding layer 24 may be located in the folded area (hereinafter, the folding area) FA.

[0214] 2c, the stacked structure of Fig. 2d may have the magnetic field shielding layer 24 positioned in an area other than the folding area FA or the area included in the folding area FA. For example, the magnetic field shielding layer 24 may include a first sheet 24a positioned in an area between the folding area FA and the long side LS1, and a second sheet 24b positioned in an area between the folding area FA and the long side LS2. The magnetic field shielding layer 24 may include a plurality of sheets other than two sheets, and in this case, the magnetic field shielding layer 24 may be positioned in an area other than the folding area FA or a part of the folding area FA on the rear surface of the display panel 251.

[0215] Next, the touch input device 2 according to the embodiment will be described with reference to FIG.

[0216] FIG. 3 is a schematic block diagram of a touch input device capable of interacting with a stylus pen.

[0217] As shown, the touch input device 2 may include a wireless communication unit 210, a memory 220, an interface unit 230, a power supply unit 240, a display unit 250, a touch unit 260, and a control unit 270. The components shown in Fig. 3 are not essential for implementing a touch input device, and therefore the touch input device described in this disclosure may have more or less components than those listed above.

[0218] More specifically, the wireless communication unit 210 among the components may include one or more modules that enable wireless communication between the touch input device 2 and a wireless communication system, between the touch input device 2 and another touch input device 2, or between the touch input device 2 and an external server. In addition, the wireless communication unit 210 may include one or more modules that connect the touch input device 2 to one or more networks.

[0219] Such a wireless communication unit 210 may include a wireless Internet module 211 and a short-range communication module 212 .

[0220] The wireless Internet module 211 is a module for wireless Internet connection and may be built into the touch input device 2. The wireless Internet module 211 is adapted to transmit and receive wireless signals through a communication network using wireless Internet technology. Examples of wireless Internet technology include WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), WiBro (Wireless Broadband), WiMAX (World Interoperability for Microwave Access), HSDPA (High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access), NR (New Radio), LTE (Long Term Evolution), and LTE-A (Long Term Evolution-Advanced), and the wireless Internet module 211 transmits and receives data using at least one of the wireless Internet technologies, including Internet technologies not listed above.

[0221] The short-range communication module 212 may support short-range communication using at least one of Bluetooth™, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi, Wi-Fi Direct, and Wireless Universal Serial Bus (Wireless USB) technologies for short-range communication. The short-range communication module 212 may support wireless communication between the touch input device 2 and a wireless communication system, between the touch input device 2 and a wireless communication enabled device, or between the touch input device 2 and a network in which an external server is located, via a short-range wireless communication network. The short-range wireless communication network may be a wireless personal area network.

[0222] Here, the wireless communication enabled device may be a mobile terminal (e.g., a smartphone, a tablet PC, a notebook, etc.) capable of exchanging data with (or linking with) the touch input device 2 according to the present invention. The near field communication module 212 may detect (or recognize) a wireless communication enabled device capable of communicating with the touch input device 2 in the vicinity of the touch input device 2. Furthermore, if the detected wireless communication enabled device is a device authenticated to communicate with the touch input device 2 according to an embodiment, the control unit 270 may transmit at least a portion of data processed by the touch input device 2 to the wireless communication enabled device via the near field communication module 212. Thus, a user of the wireless communication enabled device may use the data processed by the touch input device 2 via the wireless communication enabled device.

[0223] The memory 220 also stores data supporting various functions of the touch input device 2. The memory 220 may store a number of application programs (or applications) operated by the touch input device 2, and data and commands for the operation of the touch input device 2.

[0224] The interface unit 230 serves as a passageway for various kinds of external devices connected to the touch input device 2. The interface unit 230 may include at least one of a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device equipped with an identification module, an audio I / O (Input / Output) port, a video I / O port, and an earphone port.

[0225] The power supply unit 240, under the control of the control unit 270, receives an external power source or an internal power source and supplies power to each component included in the touch input device 2. The power supply unit 240 includes a battery, which may be a built-in battery or a replaceable battery.

[0226] The display unit 250 displays (outputs) information processed by the touch input device 2. For example, the display unit 250 may display execution screen information of an application program operated by the touch input device 2, or UI (User Interface) or GUI (Graphic User Interface) information based on such execution screen information.

[0227] The display unit 250 may include a liquid crystal display (LCD), an organic light-emitting diode (OLED) display, an e-ink display, a quantum-dot light-emitting display, a micro LED (Light-emitting diode) display, or the like.

[0228] The display unit 250 includes a display panel 251 that displays an image, and a display controller 252 that is connected to the display panel 251 and supplies signals for displaying an image to the display panel 251. For example, the display panel 251 may include a plurality of pixels connected to signal lines such as a plurality of scan lines and a plurality of data lines, and a scan driver / receiver that supplies scan signals to the scan lines, and the display controller 252 may include a data driver IC that generates data signals to be applied to the data lines, a timing controller that processes image signals and controls the overall operation of the display unit 250, a power management IC, etc.

[0229] The touch unit 260 senses a touch (or a touch input) applied to the touch area using a predetermined method, for example, a capacitive method. For example, the touch unit 260 may be configured to convert a change in capacitance, voltage, or current generated at a specific portion into an electrical input signal. The touch unit 260 may be configured to detect a position, area, capacitance at the time of touch, etc., touched by a touch object that applies a touch to the touch area on the touch unit 260. Here, the touch object is an object that applies a touch to the touch screen, and may be, for example, a body part of a user (a finger, a palm, etc.), a passive or active stylus pen 10, etc.

[0230] The touch unit 260 includes a touch panel 261 including the sensor unit 21 of FIG. 2, and a touch controller 262 that applies a driving signal to the touch panel 261, receives a sensing signal from the touch panel 261, and transmits touch data to the control unit 270 and / or the display controller 252. The touch panel 261 may include a sensor unit that can sense a touch input of a finger or a stylus pen. The sensor unit may include a number of patterns (or electrodes). The sensor unit can sense an object such as a finger or a stylus pen and drive the stylus pen. A specific sensor unit will be described in detail with reference to FIG. 16 and subsequent figures.

[0231] The touch controller 262 may include a first driver / receiver connected to at least one of the plurality of first touch electrodes of the sensor unit 21 of FIG. 2 to apply a driving signal and receive a sensing signal, a second driver / receiver connected to at least one of the plurality of second touch electrodes to apply a driving signal and receive a sensing signal, and an MCU (micro control unit) to control operations of the first driver / receiver and the second driver / receiver and to obtain a touch position using the sensing signals output from the first and second driver / receivers.

[0232] The touch controller 262 may be integrated with the control unit 270 (described later) into one IC, or may be integrated with the display controller 252 into one IC. Alternatively, the touch controller 262 may be integrated with the display controller 252 and the control unit 270 into one IC. The touch controller 262 and the control unit 270, the touch controller 262 and the display controller 252, or the touch controller 262, the display controller 252, and the control unit 270 may be integrated into one and named as a "control unit."

[0233] The display panel 251 and the touch panel 261 may be formed as a mutually layered structure or integrally, and may be referred to as a touch screen 20 .

[0234] The controller 270 may control driving of the touch input device 2 and output touch coordinate information in response to a touch sensing result of the touch input device 2. In addition, the controller 270 may change a frequency of a driving signal in response to a touch sensing result.

[0235] In addition to operations related to the application programs, the controller 270 typically controls the overall operation of the touch input device 2. The controller 270 processes signals, data, information, etc. input or output via the components described in detail above, and drives application programs stored in the memory 220 to provide or process appropriate information or functions to a user.

[0236] 3 in order to drive the application program stored in the memory 220. Furthermore, the controller 270 can operate at least two or more of the components included in the touch input device 2 in combination with each other to drive the application program.

[0237] Although it has been described above that the touch unit 260 is included in the touch input device 2 together with the display unit 250, the touch input device 2 may include only the touch unit 260.

[0238] FIG. 4 is a diagram illustrating a stylus pen according to an embodiment.

[0239] The stylus pens of FIG. 4 commonly include a resonant circuit portion 12 within a housing.

[0240] The resonant circuit unit 12 is an LC resonant circuit and can resonate with the driving signal output from the touch screen 20 of FIGS. 2 and 3. The driving signal may include a signal (e.g., a sine wave, a square wave, etc.) having a frequency corresponding to the resonant frequency of the resonant circuit unit 12. For resonance, the resonant frequency of the resonant circuit unit 12 and the frequency of the driving signal must be the same or very similar. The resonant frequency of the stylus pens 10a and 10b is determined by the design value of the resonant circuit unit 12 of the stylus pens 10a and 10b. When the sensor unit 21 of FIG. 2(b) or the loop coil 264 of FIG. 2(c) generates an electromagnetic field according to the driving signal, the resonant circuit unit 12 of the stylus pens 10a and 10b resonates using the signal received through a change in the magnetic field.

[0241] The elements of the stylus pens 10a and 10b may be accommodated in a housing. The housing may have a shape such as a cylinder, a polygonal prism, a pillar shape with at least a portion curved, an entasis shape, a frustum of pyramid shape, a circular truncated cone shape, etc., but is not limited thereto. The housing has an open interior, so that the elements of the stylus pens 10a and 10b, such as the resonant circuit unit 12, can be accommodated therein. Such a housing may be made of a non-conductive material.

[0242] 4(a), the EMR-type stylus pen 10a includes a resonant circuit section 12. The resonant circuit section 12 includes an inductor section 14 and a capacitor section 13. The inductor section 14 includes a ferrite core 115 and a coil 116 wound around the outer surface of the ferrite core 115.

[0243] The EMR type stylus pen 10a may further include a tip 11a. The tip 11a is the tip of the stylus pen 10a, and may be disposed to penetrate the ferrite core 115 as shown in FIG. 4(a), or may protrude from the ferrite core 115. The tip 11a may be a non-conductor, or may be a conductor, such as an electrode core made of a hard resin mixed with a conductive metal or conductive powder. Here, the tip 11a may or may not be electrically connected to the resonant circuit unit 12.

[0244] The ferrite core 115 may be, for example, a cylindrical ferrite material. The ferrite core 115 may have a through hole in the axial direction with a predetermined diameter (for example, 1 mm) for inserting and passing the tip 11a. Alternatively, the ferrite core 115 may be formed in the shape of a cylinder, a polygonal column, a column having at least a curved surface in a portion thereof, a cylindrical column, a truncated pyramid, a truncated cone, a toroid, a ring, or the like.

[0245] The coil 116 may be wound over the entire length in the axial direction of the ferrite core 115 or over a portion of the length. The coil 116 is electrically coupled to the capacitor portion 13.

[0246] The capacitor unit 13 may include a plurality of capacitors connected in parallel. Each capacitor on the printed circuit board may have a different capacitance and may be trimmed during the manufacturing process.

[0247] 4(b), an ECR (Electrically Coupled Resonance) type stylus pen 10b includes a conductive tip 11b and a resonant circuit unit 12. The resonant circuit unit 12 may include an inductor unit 14 and a capacitor unit 13 and may be grounded. The inductor unit 14 includes a ferrite core 115 and a coil 116 wound around the outer surface of the ferrite core 115.

[0248] The conductive tip (11b) may be formed entirely or at least partially from a conductive material (eg, metal, conductive rubber, conductive fabric, conductive silicone, etc.), but is not limited thereto.

[0249] The coil 116 may be wound over the entire length in the axial direction of the ferrite core 115 or over a portion of the length. The coil 116 is electrically coupled to the capacitor portion 13.

[0250] The capacitor unit 13 may include a plurality of capacitors connected in parallel. Each capacitor on the printed circuit board may have a different capacitance and may be trimmed during the manufacturing process.

[0251] FIG. 5 is a conceptual diagram specifically illustrating the inductor portion of the stylus pen shown in FIGS.

[0252] Referring to FIG. 5, the inductor section 14 includes a ferrite core 115 and a coil 116 wound around the ferrite core 115 .

[0253] At this time, the inductance of the inductor unit 14 is determined by the following Equation 1. <Formula 1> As can be seen from TIFF0007599741000001.tif12137 <Equation 1>, the inductance (L) is proportional to the permeability of the ferrite core 115, the cross-sectional area of ​​the coil 116, and the power of the number of windings, and is inversely proportional to the length of the windings of the coil 116.

[0254] The design of the inductor section 14 in the resonant circuit section 12 housed in the stylus pen shown in Figures 4(a) and (b) is very important. In particular, in the design of the inductor section 14, the inductance (L) and the Q value are very important parameters, as shown in Figure 6. Here, the Q value is a quantity that indicates the coil characteristics as a resonant circuit element, and is given by Q = 2dfL / R, where L and R are the inductance and resistance of the coil, respectively, and f is the frequency. The higher the Q value of a coil is used, the sharper the resonant characteristics can be obtained.

[0255] In the design of the stylus pen shown in Figures 4(a) and (b), L must have a sufficiently large self-resonance frequency for the frequency to be used, and the Q value should preferably have a maximum value at the frequency to be used. To satisfy this, the material of the ferrite core, the type of coil wire, and the winding scheme must be optimized. Also, a method is required that can obtain a high output signal while maintaining a thin pen diameter.

[0256] In the following embodiment, a stylus pen design method that is most optimized among a number of ferrite core materials, coil wire types, and winding schemes will be described.

[0257] (1) Ferrite core material In this embodiment, the ferrite core is made of manganese (Mn) and nickel (Ni).

[0258] (2) Wire type The types of coil wire used in this embodiment were enameled wire and Litz wire.

[0259] 7, enameled wire 100 is an electric wire made by covering the surface of copper wire 101 with insulating enamel 102 and heating it at high temperature, and is used for windings and wiring in electric devices, communication devices, electric meters, etc. In this embodiment, an enameled wire with a total thickness (T) of 0.2 mm, a wire diameter (Φ) of 0.18 mm, and a covering thickness (t) of 0.01 mm was used.

[0260] As shown in Fig. 8, Litz wire 200 is a special insulated wire made by twisting together several thin insulated wires 100 (e.g., enameled wires) with a diameter of about 0.1 mm into one wire, and then covering it with an insulating coating 201 made of nylon or the like. Litz wire 200 can reduce the skin effect by increasing the surface area, and is used for coils in high-frequency circuits.

[0261] In this embodiment, a Litz wire having a total thickness (T) of 0.2 mm, a wire diameter (Φ) of 0.06 mm, and a coating thickness (t) of 0.007 mm was used.

[0262] (3) Winding method In the embodiment of the present invention, in order to obtain a sufficient inductance value (i.e., a sufficient number of windings) in the limited space of a stylus pen, a winding method having a multi-layer winding structure is used. Specifically, as shown in (A) and (B) of FIG. 9, two types of multi-layer winding methods are used.

[0263] The winding scheme in Figure 9(A) is the simplest winding scheme, which is a sequential layer winding scheme in which the winding of the layer immediately above is started after the winding of the lower layer is finished. In this case, the winding of the layer immediately above starts at the point where the winding of the previous layer ends, and this will be referred to as a U-type winding scheme below.

[0264] The winding scheme of FIG. 9(B) is an alternate layer winding scheme in which adjacent winding layers are alternately wound, and adjacent layers are wound in a zigzag pattern. Hereinafter, this is referred to as a zigzag type winding scheme. Specifically, after the second layer winding is sequentially wound on the first layer winding, the third layer winding is wound between the first layer winding and the second layer winding, the fourth layer winding is wound on the second layer winding, and the fifth layer winding is wound between the second layer winding and the fourth layer winding. Such a zigzag type winding scheme has an advantage that it can minimize the voltage difference between adjacent layers and reduce the winding self-capacitance. At this time, the winding self-capacitance, which is a type of parasitic capacitance, is a parameter that indicates the electric field energy stored in the winding.

[0265] Comparative experiment 1 (Comparison of characteristic values ​​by material) The coil wire type was enameled wire, and the coil was wound using the U-type winding method. The ferrite core material was changed to manganese, nickel, and magnesium, and the Q value was measured.

[0266] As a result of the measurements, there was almost no difference in the Q value characteristics of each core material, and the measured Q value was far too low to be realized as a product.

[0267] Comparative experiment 2 (Comparison of characteristic values ​​by winding type) The Q value was measured for inductors 1 and 2, which were manufactured with a ferrite core made of manganese (Mn), wound using a U-type winding method, and with the coil wire types being enameled wire and Litz wire, respectively.

[0268] FIG. 8 is a graph showing the Q values ​​of inductors 1 and 2 measured by changing the frequency using a KEYSIGHT TECHNOGIES E4980A precision LCR meter.

[0269] In Figure 10, a is a waveform showing the change in Q value versus frequency for inductor 1 (manganese core / enamel wire / U-type winding method), and b is a waveform showing the change in Q value versus frequency for inductor 2 (manganese core / litz wire / U-type winding method).

[0270] For inductor 2 made from litz wire, the Q value reaches nearly its maximum value at a frequency of about 400 kHz (frequency f1), while for inductor 1 made from enamel wire, the Q value reaches nearly its maximum value at a frequency of about 150 kHz (frequency f2).

[0271] Comparing Figures 10a and 10b, we can see that the maximum Q value of inductor 2 is approximately 1.5 times higher than the maximum Q value of inductor 1. This shows that litz wire is superior to enamel wire as an inductor coil that forms the resonant circuit of a stylus pen.

[0272] However, the maximum Q value of inductor 2 measured in comparative experiment 2 was only about half the target value (Qtarget) required for commercialization.

[0273] Comparative experiment 3 (Comparison of characteristic values ​​by winding method) The Q value was measured for inductors 3 to 5, which were manufactured by changing the ferrite core material to manganese (Mn), changing the wire type to enameled wire and Litz wire, and changing the winding method to U type and zigzag type.

[0274] FIG. 11 is a graph showing the Q values ​​of inductors 3 to 5 measured by changing the frequency using a KEYSIGHT TECHNOGIES E4980A precision LCR meter.

[0275] In Figure 11, a is a waveform showing the change in Q value versus frequency for inductor 3 (manganese core / enamel wire / U-type winding method), b is a waveform showing the change in Q value versus frequency for inductor 4 (manganese core / enamel wire / zigzag-type winding method), and c is a waveform showing the change in Q value versus frequency for inductor 5 (manganese core / litz wire / zigzag-type winding method).

[0276] As can be seen from the waveform c in Figure 11, inductor 5 made with the litz wire / zigzag winding method, the Q value reaches nearly its maximum value at a frequency near 300 kHz (frequency f3). Inductor 4 made with the enamel wire / zigzag winding method and inductor 3 made with the enamel wire / U-type winding method, the Q value reaches nearly its maximum value at a frequency near 150 kHz (frequency f2).

[0277] 11(a), (b), and (c) show that the maximum Q value of inductor 5 is approximately 1.5 times higher than the maximum Q value of inductor 4, and more than twice as high as the maximum Q value of inductor 3. This shows that the zigzag-type winding method is superior to the U-type winding method for the inductor that forms the resonant circuit of the stylus pen.

[0278] However, the level was only about 3 / 4 of the target value (Qtarget) required for commercialization of inductor 5 (manganese core / litz wire / zigzag type winding method) measured in comparative experiment 2.

[0279] Comparative experiment 4 (Comparison of characteristic values ​​by core material) In this embodiment, manganese and nickel are used as the material for the ferrite core. Normally, nickel has a magnetic permeability of 200 to 300, while manganese has a magnetic permeability of 3,000 to 5,000.

[0280] Since manganese used in this embodiment has a magnetic permeability about 15 times higher than nickel, assuming that the cross-sectional area and length of the coil are the same, the number of windings of manganese can be reduced by about 4 times compared to the number of windings of nickel to obtain the same inductance value. Therefore, from the viewpoint of the number of windings alone, it can be seen that using manganese is more effective than nickel.

[0281] Meanwhile, since the inductor unit 14 has a complicated structure including a coil wound around a core, a parasitic capacitance is additionally formed, which reduces the Q value and thus reduces the amplitude of the resonant signal.

[0282] Parasitic capacitance formed in the inductor section 14 may occur between the wound coils and between the core and the coil, but by adopting the zigzag type winding method as described above, the parasitic capacitance between the wound coils can be reduced.

[0283] Meanwhile, in this embodiment, in order to reduce the parasitic capacitance between the core and the coil, core materials having a lower dielectric constant than manganese were tested, and as a result of the testing, it was found that nickel core is the optimal material for the ferrite core.

[0284] The important physical property of manganese and nickel, which are mainly used as ferrite core elements, is permeability, which has a significant effect on the inductance value as shown in <Formula 1>. However, permittivity is a physical property that is of little interest in manganese and nickel as ferrite elements, and in fact, in the case of nickel, there is no related information even on the data sheet provided by the manufacturer.

[0285] In this embodiment, in order to confirm the permittivity of manganese and nickel, the permittivity of manganese and nickel is measured using an E4980A precision LCR meter from KEYSIGHT TECHNOGIES, and the measurement results are shown in Table 1 below. [Table 1] Measurement 1 and Measurement 2 were measured using the same KEYSIGHT TECHNOGIES E4980A precision LCR meter, and Measurement 1 shows the dielectric constant automatically calculated by the measurement software. Measurement 1 shows that the dielectric constant of manganese is 2400, but the dielectric constant of nickel is not measured.

[0286] Measurement 2 was a method of calculating the dielectric constant by measuring the capacitance, area, and distance between ferrite cores. According to Measurement 2, the dielectric constant of manganese was measured to be 8300, and the dielectric constant of nickel was measured to be 2.

[0287] There was a large difference in the dielectric constant between Measurement 1 and Measurement 2, and in particular, in the case of Measurement 2, it was confirmed that there was a considerable amount of error due to capacitance, area, distance, etc. However, the results of Measurements 1 and 2 show that nickel has a dielectric constant at least 1 / 1000 smaller than manganese.

[0288] In Comparative Experiment 4, the Q value was measured for Inductor 6 and Inductor 7, which were manufactured by changing the winding method to a U type and a zigzag type with the ferrite core material changed to nickel and the wire type changed to Litz wire.

[0289] FIG. 12 is a graph showing the Q values ​​of the inductors 6 and 7 measured by changing the frequency using a KEYSIGHT TECHNOGIES E4980A precision LCR meter.

[0290] In FIG. 12, a is a waveform showing the change in Q value versus frequency for inductor 6 (nickel core / litz wire / U-type winding method), and b is a waveform showing the change in Q value versus frequency for inductor 7 (nickel core / litz wire / zigzag-type winding method).

[0291] As can be seen from the waveform in Figure 12b, inductor 7, which was made using the nickel core / Litz wire / zigzag winding method, has a Q value that is nearly maximum at a frequency of about 400 kHz (frequency f5). Inductor 6, which was made using the nickel core / Litz wire / U-type winding method, has a Q value that is nearly maximum at a frequency of about 200 kHz (frequency f6). Comparing Figures 11a and b, it can be seen that the maximum Q value of inductor 7 is about twice as high as the maximum Q value of inductor 6.

[0292] On the other hand, it was found that the maximum Q value of inductor 7 (nickel core / litz wire / zigzag type winding method) measured in comparative experiment 4 almost reached the target value (Qtarget) required for commercialization.

[0293] In the above-described comparative experiments 1 to 4, inductors were manufactured and the Q value was tested while changing the combination of ferrite core material, coil wire type, and winding scheme, and the test results showed that the highest Q value was obtained when the inductor part of the capacitive resonant stylus pen was designed with a nickel core, Litz wire, and zigzag type winding scheme. It was also found that the maximum Q value of the inductor manufactured with such a combination reached the target value (Qtarget) for commercialization.

[0294] Meanwhile, in this embodiment, a nickel core was used as the ferrite core, and a Litz wire was used as the type of wire for the core. However, similar results would be obtained if a material having a dielectric constant of 1000 or less was used as the ferrite core other than the nickel core, and if a wire in the form of one coil covering two or more insulated wire strands was used other than the Litz wire.

[0295] Before describing in detail the touch input device in the pen and touch input system according to an embodiment of the present invention, the reason why the output voltage (Vout) of a CVA (Capacitor Voltage Amplitude) changes depending on the position of a stylus pen on a touch screen will be described below.

[0296] FIG. 13 is a schematic diagram for explaining how an output voltage (Vout) of a CVA (Capacitor Voltage Amplitude) changes depending on the position of a stylus pen 10 on a conventional touch screen.

[0297] Referring to FIG. 13, the reason why the CVA output varies depending on the position of the stylus pen 10 on the touch screen is that the impedance ratio on both sides of the sensing line centered on the stylus pen 10 changes.

[0298] Based on the long axis of a conventional touch screen, the resistance (R) of a Metal Mesh touch sensor is about 1.2k (ohm) and the capacitance (C) is about 250pF.

[0299] Based on 10 distributed models, at a drive frequency of 300kHz, the impedance of the capacitor is about 200 times greater than the resistance (120 (ohm) vs. 1 / (2π*300k*25pF)=21k (ohm)). Therefore, the capacitor is the main cause.

[0300] Figure 14 is a diagram for explaining through current sensing that the output voltages (Vout1, Vout2) of the CVA differ depending on the position of the stylus pen 10 in Figure 13, and Figure 15 is a diagram for explaining through voltage sensing that the output voltages (Vout1, Vout2) of the CVA differ depending on the position of the stylus pen 10 in Figure 13.

[0301] 14 and 15, the output voltage of the CVA varies depending on the position of the stylus pen 10 on the sensing line. That is, the closer the stylus pen 10 is to the sensing circuit unit 50, the larger the output voltage of the CVA is, and the farther the stylus pen 10 is from the sensing circuit unit 50, the smaller the output voltage of the CVA is.

[0302] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, touch input devices according to various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0303] FIG. 16 is a schematic diagram of a sensor unit 100 of the touch input device according to the first embodiment of the present invention.

[0304] The touch input device according to the first embodiment of the present invention may be a portrait type touch input device. Such a portrait type touch input device has a width smaller than a height, and a control unit (not shown) for controlling the sensor unit 100 may be disposed below the sensor unit 100. For example, such a touch input device corresponds to the shape of a smartphone.

[0305] The sensor unit 100 can not only detect the position of an object such as a finger placed on the screen, but also drive a stylus pen 10 shown in FIG. 1a placed on the screen and detect the position of the stylus pen placed on the screen by sensing a signal (stylus pen signal) emitted from the stylus pen.

[0306] The sensor unit 100 includes a number of patterns (or a number of electrodes).

[0307] The sensor unit 100 may include a number of first to fourth patterns 101, 102, 103, and 104.

[0308] The first pattern 101 has a shape extending along an arbitrary first direction y. The first direction may be a long axis direction of a screen of the touch input device. The first pattern 101 may also be named ATX (Active TX). The first pattern 101 may have a predetermined shape in which an electrical path is formed along the arbitrary first direction y.

[0309] The second pattern 102 has a shape extending along the first direction y, is disposed adjacent to the first pattern 101, and is disposed at a predetermined distance from the first pattern 101. The second pattern 102 may also be named DTX (Dummy TX). The second pattern 102 may have a predetermined shape in which an electrical path is formed along the first direction y adjacent to the first pattern 101.

[0310] The third pattern 103 has a shape extending along a second direction x different from the first direction. The second direction x may be perpendicular to the first direction y and may be a minor axis direction of the screen of the touch input device. The third pattern 103 may also be named ARX (Active RX). The third pattern 103 may have a predetermined shape with an electrical path formed along an arbitrary second direction x.

[0311] The fourth pattern 104 has a shape extending along the second direction x, is disposed adjacent to the third pattern 103, and is disposed at a predetermined distance from the third pattern 103. The fourth pattern 104 may also be named DRX (dummy RX). The fourth pattern 104 may have a predetermined shape in which an electrical path is formed along the second direction x adjacent to the third pattern 103.

[0312] The third and fourth patterns 103 and 104 are disposed on the first and second patterns 101 and 102, and are disposed at a predetermined interval from the first and second patterns 101 and 102. Meanwhile, the sensor unit in which the first to fourth patterns are disposed on the same layer will be described in detail with reference to FIG.

[0313] The multiple first patterns 101 are arranged along the second direction x, and the multiple second patterns 102 are also arranged along the second direction x. The multiple third patterns 103 are arranged along the first direction y, and the multiple fourth patterns 104 are also arranged along the first direction y.

[0314] Since the first patterns 101 extend along a first direction y and the third patterns 103 extend along a second direction x, and the first direction y is longer than the second direction x, the number of the multiple first patterns 101 is less than the number of the multiple third patterns 103. Therefore, the number of channels of the multiple first patterns 101 is less than the number of channels of the multiple third patterns 103.

[0315] Here, the number of the first patterns 101 and the number of the third patterns 103 may be increased or decreased according to the size of the screen of the touch input device.

[0316] The second patterns 102 may correspond one-to-one to the first patterns 101 and may be configured in the same number. The other ends (or second side ends) of the second patterns 102 are electrically connected to each other via a conductive pattern. Here, the conductive pattern may be a metal mesh or a silver trace.

[0317] One end (or a first side end) of the multiple second patterns 102 may be electrically connected to a control unit (not shown). Here, as shown in FIG. 17, one end of two or more of the multiple second patterns 102 may be electrically connected via a conductive pattern. With this configuration, the number of channels of the multiple second patterns 102 may be reduced to half the number of channels of the multiple first patterns 101. Here, two or more of the multiple second patterns 102 may be adjacent to each other.

[0318] Meanwhile, as shown in FIG. 18, one end of each of the second patterns 102 may be individually connected to one conductive pattern.

[0319] 16 again, since the multiple third patterns 103 are arranged along the first direction y, the number of the multiple third patterns 103 is greater than the number of the multiple first patterns 101. Therefore, the number of channels of the multiple third patterns 103 is greater than the number of channels of the multiple first patterns 101.

[0320] The fourth patterns 104 may correspond one-to-one to the third patterns 103 and may be configured in the same number as the third patterns 103. The other ends (or second side ends) of the fourth patterns 104 are electrically connected to each other via a conductive pattern.

[0321] 16, the plurality of first patterns 101 and the plurality of third patterns 103 basically sense a touch of an object such as a finger. To this end, the plurality of first patterns 101 may operate as touch driving electrodes (TX electrodes) to which a touch driving signal is applied, and the plurality of third patterns 103 may operate as touch sensing electrodes (RX electrodes or touch receiving electrodes) to which a touch sensing signal is received. Of course, the opposite may also be true.

[0322] In order for the sensor unit 100 of the touch input device shown in Fig. 16 to drive and sense the stylus pen, a number of first to fourth patterns 101, 102, 103, and 104 may be used in various combinations. Various combinations are as shown in Table 2 below. In Table 2 below, "1" indicates a number of first patterns 101, "2" indicates a number of second patterns 102, "3" indicates a number of third patterns 103, and "4" indicates a number of fourth patterns 104. [Table 2] Referring to Table 2 above, in various combinations (No. 1 to No. 32), the multiple first patterns 101 and the multiple third patterns 103 are used to sense a touch of an object such as a finger. Specifically, the multiple first patterns 101 act as touch driving electrodes, and the multiple third patterns 103 act as touch receiving electrodes. Of course, the reverse is also possible.

[0323] At least one or two of the first to fourth patterns 101, 102, 103, and 104 may operate as a stylus driving electrode for driving the stylus pen. At least one or two of the first to fourth patterns 101, 102, 103, and 104 may be used to form a current loop for driving the stylus pen. For example, the X-axis driving may be any one of the first patterns 101 and the second patterns 102, and the Y-axis driving may be any one of the third patterns 103 and the fourth patterns 104. The stylus pen may be driven by either the X-axis driving or the Y-axis driving, or both.

[0324] At least one or two of the first to fourth patterns 101, 102, 103, and 104 may operate as a sensing electrode for sensing a stylus pen signal emitted from a stylus pen. For example, since both X-axis sensing and Y-axis sensing are required to sense a stylus pen signal, two of the first to fourth patterns 101, 102, 103, and 104 may be used. The X-axis sensing may be any one of the first patterns 101 and the second patterns 102, and the Y-axis sensing may be any one of the third patterns 103 and the fourth patterns 104.

[0325] In Table 2 above, "magnitude of uplink signal" refers to the magnitude of the driving signal for driving the stylus pen 10 of Fig. 1a. When the same stylus pen driving signal is applied to a number of first patterns 101 and a number of second patterns 102, respectively, and the magnitude of the signal received by the stylus pen is compared, the uplink signal is relatively larger when the stylus pen driving signal is applied to a number of second patterns 102 than when the stylus pen driving signal is applied to a number of first patterns 101.

[0326] This is because the other ends (or second side ends) of the second patterns 102 are electrically connected and at least one current loop is formed by appropriately selecting two or more second patterns to which a stylus pen driving signal is applied, but the other ends (or second side ends) of the first patterns 101 are not electrically connected to each other and no current loop is formed. When a current flows through each first pattern 101, the RC of each first pattern 101 is charged, so the current does not flow well from one end (or first side end) of each first pattern 101 to the other end (or second side end). In addition, the stylus pen driving signal applied through the first patterns 101 is transmitted to the second patterns 102 in which a current loop is formed through capacitive coupling, and at this time, the signal is attenuated due to the capacitive coupling.

[0327] Similarly, when the stylus pen driving signal is applied to a number of the fourth patterns 104, the uplink signal is relatively larger than when the stylus pen driving signal is applied to a number of the third patterns 103.

[0328] In Table 2 above, "downlink signal magnitude" refers to the magnitude of the stylus pen signal received from the stylus pen 10 of Fig. 1a. When the same stylus pen signal is received through multiple first patterns 101 and multiple second patterns 102 and the signal magnitudes are compared, the downlink signal is relatively larger when the stylus pen signal is received through multiple second patterns 102 than when the stylus pen signal is received through multiple first patterns 101.

[0329] The reason is that the other ends (second side ends) of the multiple second patterns 102 are electrically connected to form a current loop, but the other ends (first side ends) of the multiple first patterns 101 are not electrically connected to each other, and in particular, the stylus pen signal is transmitted from the multiple second patterns 102, in which the current loop is formed, to the multiple first patterns 101 via capacitive coupling, resulting in attenuation of the downlink signal.

[0330] Similarly, when the stylus pen signals are received via multiple fourth patterns 104, the downlink signal is relatively larger than when the stylus pen signals are received via multiple third patterns 103.

[0331] In Table 2 above, "additional stylus channel" means whether an additional channel must be configured for a stylus pen in addition to touch sensing. If multiple second patterns 102 and / or multiple fourth patterns 104 are used for driving and sensing the stylus pen, an additional channel is required (shown as "Yes" in Table 2). On the other hand, if multiple first patterns 101 and / or multiple third patterns 103 for touch sensing are used for driving and sensing the stylus pen, an additional channel is not required (shown as "No" in Table 2).

[0332] Hereinafter, some examples of the various combinations (No. 1 to No. 32) in Table 2 above will be described in detail. Combinations not described here will be fully understood by those skilled in the art from the detailed description below.

[0333] In No. 1, the plurality of first patterns 101 are used as touch driving electrodes for touch sensing of an object and as stylus sensing electrodes for sensing a stylus pen signal. The plurality of second patterns 102 are used as stylus driving electrodes for driving a stylus pen. The plurality of third patterns 103 are used as touch sensing electrodes for touch sensing of an object and as stylus sensing electrodes for sensing a stylus pen signal. The plurality of fourth patterns 104 are electrically floating. Here, being electrically floating may mean that only the other ends (second side ends) of the plurality of fourth patterns 104 are electrically connected to each other, and one end (first side end) of the plurality of fourth patterns 104 is not connected to another configuration.

[0334] In the case of No. 1, the magnitude of the uplink signal is relatively large because the multiple second patterns 102 are used as stylus driving electrodes. The magnitude of the downlink signal is relatively small because the multiple first patterns 101 and the multiple third patterns 103 are used as stylus sensing electrodes. Also, because the multiple second patterns 102 are used separately as stylus driving electrodes, a separate additional channel is required for driving the stylus pen, but an additional channel is not required for sensing the stylus pen.

[0335] In No. 4, the multiple first patterns 101 are used as touch driving electrodes for touch sensing of an object. The multiple second patterns 102 are used as stylus driving electrodes for driving a stylus pen and also as stylus sensing electrodes for sensing a stylus pen signal. The multiple third patterns 103 are used as touch sensing electrodes for touch sensing of an object. And the multiple fourth patterns 104 are used as stylus sensing electrodes for sensing a stylus pen signal.

[0336] In the case of No. 4, the magnitude of the uplink signal is relatively large because the multiple second patterns 102 are used as stylus driving electrodes. The magnitude of the downlink signal is relatively large because the multiple second patterns 102 and the multiple fourth patterns 104 are used as stylus sensing electrodes. In addition, because the multiple second patterns 102 are separately used as stylus driving electrodes and stylus sensing electrodes, and the multiple fourth patterns 104 are separately used as stylus sensing electrodes, additional channels are required for driving and sensing the stylus pen.

[0337] In No. 8, a number of first patterns 101 are used as touch driving electrodes for touch sensing of an object. A number of second patterns 102 are used as stylus sensing electrodes for sensing a stylus pen signal. A number of third patterns 103 are used as touch sensing electrodes for touch sensing of an object. And a number of fourth patterns 104 are used as stylus driving electrodes for driving a stylus pen and also as stylus sensing electrodes for sensing a stylus pen signal.

[0338] In the case of No. 8, the magnitude of the uplink signal is relatively large because the multiple fourth patterns 104 are used as stylus driving electrodes. The magnitude of the downlink signal is relatively large because the multiple second patterns 102 and the multiple fourth patterns 104 are used as stylus sensing electrodes. In addition, since the multiple second patterns 102 are separately used as stylus sensing electrodes and the multiple fourth patterns 104 are separately used as stylus driving electrodes and stylus sensing electrodes, additional channels are required for driving and sensing the stylus pen.

[0339] In No. 12, a number of first patterns 101 are used as touch driving electrodes for touch sensing of an object. A number of second patterns 102 are used as stylus driving electrodes for driving a stylus pen and as stylus sensing electrodes for sensing a stylus pen signal. A number of third patterns 103 are used as touch sensing electrodes for touch sensing of an object. And a number of fourth patterns 104 are used as stylus driving electrodes for driving a stylus pen and as stylus sensing electrodes for sensing a stylus pen signal.

[0340] In the case of No. 12, the magnitude of the uplink signal is relatively large because the multiple second and fourth patterns 102 and 104 are used as stylus driving electrodes. The magnitude of the downlink signal is relatively large because the multiple second patterns 102 and the multiple fourth patterns 104 are used as stylus sensing electrodes. In addition, because the multiple second patterns 102 are separately used as stylus driving electrodes and stylus sensing electrodes, and the multiple fourth patterns 104 are separately used as stylus driving electrodes and stylus sensing electrodes, additional channels are required for driving and sensing the stylus pen.

[0341] In No. 13, the multiple first patterns 101 are used as touch driving electrodes for touch sensing of an object, as stylus driving electrodes for driving a stylus pen, and as stylus sensing electrodes for sensing a stylus pen signal. The multiple third patterns 103 are used as touch sensing electrodes for touch sensing of an object, and as stylus sensing electrodes for sensing a stylus pen signal. And the multiple second and fourth patterns 102 and 104 are electrically floating.

[0342] In the case of No. 13, the magnitude of the uplink signal is relatively small because the multiple first patterns 101 are used as stylus driving electrodes. The magnitude of the downlink signal is relatively small because the multiple first patterns 101 and the multiple third patterns 103 are used as stylus sensing electrodes. In addition, since the multiple first patterns 101 are used as stylus driving electrodes and stylus sensing electrodes and the multiple third patterns 103 are used as stylus sensing electrodes, no additional channels are required for driving and sensing the stylus pen.

[0343] In No. 17, the multiple first patterns 101 are used as touch driving electrodes for touch sensing of an object and as stylus sensing electrodes for sensing a stylus pen signal. The multiple third patterns 103 are used as touch sensing electrodes for touch sensing of an object, as stylus driving electrodes for driving a stylus pen, and as stylus sensing electrodes for sensing a stylus pen signal. And the multiple second and fourth patterns 102 and 104 are electrically floating.

[0344] In the case of No. 17, since a number of third patterns 103 are used as stylus driving electrodes, the magnitude of the uplink signal is relatively small. Since a number of first patterns 101 and a number of third patterns 103 are used as stylus sensing electrodes, the magnitude of the downlink signal is relatively small. Furthermore, since a number of first patterns 101 are used as stylus sensing electrodes and a number of third patterns 103 are used as stylus driving electrodes and stylus sensing electrodes, a separate additional channel for driving and sensing the stylus pen is not required.

[0345] In No. 21, the multiple first patterns 101 are used as touch driving electrodes for touch sensing of an object, as stylus driving electrodes for driving a stylus pen, and as stylus sensing electrodes for sensing a stylus pen signal. The multiple third patterns 103 are used as touch sensing electrodes for touch sensing of an object, as stylus driving electrodes for driving a stylus pen, and as stylus sensing electrodes for sensing a stylus pen signal. And the multiple second and fourth patterns 102 and 104 are electrically floating.

[0346] In the case of No. 21, the magnitude of the uplink signal is relatively small because the multiple first and third patterns 101 and 103 are used as stylus driving electrodes. The magnitude of the downlink signal is relatively small because the multiple first patterns 101 and the multiple third patterns 103 are used as stylus sensing electrodes. In addition, since the multiple first patterns 101 are used as stylus driving electrodes and stylus sensing electrodes and the multiple third patterns 103 are used as stylus driving electrodes and stylus sensing electrodes, no additional channels are required for driving and sensing the stylus pen.

[0347] Among the various combinations (No. 1 to No. 32) in Table 2 above, Nos. 1, 5, 9, 25, and 29 are in the "stylus additional channel" column with "driving" as "yes" and "sensing" as "no." Nos. 1, 5, 9, 25, and 29 use a number of first and third patterns 101, 103 to sense the stylus pen, and a number of second and / or fourth patterns 102, 104 to drive the stylus pen. Even if a number of second and / or fourth patterns 102, 104 are used when driving the stylus pen, it may be somewhat difficult to form a magnetic field for resonating the stylus pen. Therefore, as shown in FIG. 17, one end (first side end) of two or more adjacent second patterns may be electrically connected. Similarly, one end (first side end) of two or more adjacent fourth patterns may be electrically connected. This configuration has the advantage of reducing the number of additional channels for driving the stylus pen.

[0348] A control unit (not shown) controls the sensor unit 100. A controller (not shown) is electrically connected to the sensor unit 100 and can control the operation of the sensor unit 100. The controller (not shown) and the sensor unit 100 may be electrically connected via a conductive trace.

[0349] Here, the controller (not shown) may be the touch controller 262 shown in FIG. 3, but is not limited thereto. The controller (not shown) may be an integrated version of the touch controller 262 and the display controller 252 shown in FIG. 3, an integrated version of the touch controller 262 and the controller 270 shown in FIG. 3, or an integrated version of the touch controller 262, the display controller 252, and the controller 270 shown in FIG. 3. Alternatively, the controller (not shown) may be a separate controller included in the sensor unit 100. Therefore, the controller (not shown) in the present invention is not limited to the touch controller 262 or the controller 270 shown in FIG. 3, and a controller capable of controlling not only the sensor unit 100 but also the sensor units of the following embodiments may be named "controller".

[0350] Specifically, as shown in No. 1 to No. 32 in Table 2 above, a control unit (not shown) may be for applying touch driving signals to the plurality of first patterns 101 and receiving touch sensing signals from the plurality of third patterns 103.

[0351] The control unit (not shown) may be for applying a stylus pen driving signal in at least one of the first pattern 101 to the fourth pattern 104, and receiving a stylus pen sensing signal in at least one of the first pattern 101 to the fourth pattern 104, as in No. 1 to No. 32 in Table 2 above.

[0352] The control unit (not shown) may be configured to apply a stylus pen driving signal in at least one of the first patterns 101 or the third patterns 103, as shown in No. 13 to No. 32 in Table 2 above.

[0353] A control unit (not shown) may be configured to receive a stylus pen sensing signal in at least one of the plurality of first patterns 101 or the plurality of third patterns 103, such as No. 1 to 3, 5 to 7, 9 to 11, 13 to 15, 17 to 19, 21 to 23, 25 to 27, and 29 to 31 in Table 2 above.

[0354] A control unit (not shown) may be configured to apply a stylus pen driving signal in at least one of the second patterns 102 or the fourth patterns 104, such as Nos. 1 to 12 and 25 to 32 in Table 2 above.

[0355] A control unit (not shown) may be configured to receive a stylus pen sensing signal in at least one of the second patterns 102 or the fourth patterns 104, such as Nos. 2-4, 6-8, 10-12, 14-16, 19-20, 22-24, 26-28, and 30-32 in Table 2 above.

[0356] A control unit (not shown) may be configured to select at least one of the first pattern 101 to the fourth pattern 104 as a pen driving electrode and apply a stylus pen driving signal to the selected pen driving electrode. Here, the selection of at least one of the first pattern 101 to the fourth pattern 104 as a pen driving electrode may vary depending on the position of the stylus pen 10 on the touch screen 20 of the touch input device 2 of FIG. 1a. The pattern selected when the stylus pen is in a hover state may be different from the pattern selected when the stylus pen is in a contact state. For example, the control unit (not shown) may select one of the first and second patterns 101 and 102 as a pen driving electrode when the stylus pen is in a hover state, and select one of the third and fourth patterns 103 and 104 as a pen driving electrode when the stylus pen is in a contact state. Of course, the opposite case is also possible.

[0357] A control unit (not shown) may select at least two of the first pattern 101 to the fourth pattern 104 as a pen sensing electrode and sense a stylus pen signal emitted from the stylus pen through the selected pen sensing electrode. Here, the selection of at least two of the first pattern 101 to the fourth pattern 104 as a pen sensing electrode may vary depending on the position of the stylus pen 10 on the touch screen 20 of the touch input device 2 of FIG. 1a. The pattern selected when the stylus pen is in a hover state may be different from the pattern selected when the stylus pen is in a contact state. For example, the control unit (not shown) may select one of the first and second patterns 101 and 102 as a pen sensing electrode when the stylus pen is in a hover state, and select one of the third and fourth patterns 103 and 104 as a pen sensing electrode when the stylus pen is in a contact state. Of course, the opposite is also possible.

[0358] FIG. 19 is a schematic diagram of a sensor unit 100' of a touch input device according to a second embodiment of the present invention.

[0359] The touch input device according to the second embodiment of the present invention is a landscape type touch input device. Such a landscape type touch input device has a width greater than a height, and a control unit (not shown) for controlling the sensor unit 100' may be disposed below the sensor unit 100'. For example, such a touch input device may correspond to the shape of a tablet PC.

[0360] The configuration of the sensor unit 100' of the touch input device according to the second embodiment of the present invention is the same as the configuration of the sensor unit 100 of the touch input device according to the first embodiment shown in FIG. 16, except that the direction is rotated by 90 degrees.

[0361] The sensor unit 100' of the touch input device according to the second embodiment of the present invention includes a number of first to fourth patterns 101, 102, 103, and 104. The first pattern 101 and the second pattern 102 are disposed adjacent to each other and have a shape extending along one direction. Alternatively, the first pattern 101 and the second pattern 102 may have a predetermined shape in which an electrical path is formed along one direction. The third pattern 103 and the fourth pattern 104 are disposed adjacent to each other and have a shape extending along a direction different from the one direction. Alternatively, the third pattern 103 and the fourth pattern 104 may have a predetermined shape in which an electrical path is formed along the other direction. The other ends (second side ends) of the second patterns 102 are electrically connected to each other, and the other ends (second side ends) of the fourth patterns 104 are also electrically connected to each other.

[0362] When the sensor unit 100' of the touch input device according to the second embodiment shown in FIG. 19 is configured to be approximately 10 to 14 inches, which is the screen size of a landscape type tablet PC, and is embodied as example No. 1 in Table 2 above, the number of total channels and the number of drive trace channels (TX Trace Channels) of the sensor unit 100' can be roughly summarized as shown in Table 3 below. [Table 3] In Table 3 above, the number of channels of the Stylus TX is the number of the plurality of first patterns 101 divided by 2. This is because, although the number of the plurality of second patterns 102 is the same as the number of the plurality of first patterns 101, as shown in Fig. 20, one end (first side end) of the plurality of second patterns 102 has two adjacent one ends electrically connected to each other, reducing the number of channels by half.

[0363] In Table 3 above, the number of TX trace channels is the sum of the number of Finger TX channels and the number of Stylus TX channels. The number of TX trace channels is a major factor that determines the thickness of the width direction bezel of the touch input device according to the second embodiment. This is because the control unit (not shown) is disposed below (or above) the sensor unit 100' in the touch input device according to the second embodiment. The more the number of TX trace channels is reduced, the more the thickness of the width direction bezel of the touch input device can be reduced.

[0364] Meanwhile, when the screen size of the touch input device shown in FIG. 19 is the same as that of a smartphone, for example, 6.9 inches, there is no particular problem. However, when the screen size of the touch input device shown in FIG. 19 is increased to 11 inches or 12.9 inches, which is the screen size of a tablet PC, the lengths of the first to fourth patterns 101, 102, 103, and 104 of the sensor unit 100' are also increased, and the resistance and capacitance value of the sensor unit 100' increases. The increase in the resistance and capacitance value narrows the operating frequency bandwidth of the touch driving signal applied to any one of the first and third patterns used as a touch driving electrode and the stylus driving signal for driving the stylus pen, and therefore a problem may occur in which the operating frequency bandwidth required for the design cannot be obtained. In order to solve the problem, it may be possible to consider reducing the resistance and capacitance value of the sensor unit 100', but there is a limit to how much the value can be reduced, and even if the value is reduced to the maximum extent, the above problem still cannot be solved.

[0365] In addition, the stylus pen signal received from the stylus pen and input to the control unit of the touch input device is attenuated as the sensor unit 100' becomes larger. In particular, the stylus pen sensing signal from the part located farthest from the control unit among the first to fourth patterns 101, 102, 103, and 104 of the sensor unit 100' is attenuated during the process of being transmitted to the control unit, resulting in a problem that a voltage value required by design cannot be output.

[0366] The above problem can be solved by using a number of second patterns 102 as stylus pen sensing electrodes for sensing stylus pen signals, as in the examples of Nos. 3, 4, 7, 8, 11, 12, 15, 16, 19, 20, 23, 24, 27, 28, 31, and 32 in Table 2, or by using a number of fourth patterns 104 as stylus pen sensing electrodes for sensing stylus pen signals, as in the examples of Nos. 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, and 32 in Table 2. In the above examples, the number of second and fourth patterns 102 and 104 directly receive electromotive force through magnetic induction by the stylus pen, so there is no signal attenuation through capacitive coupling from the second pattern 102 to the first pattern 101, or from the fourth pattern 104 to the third pattern 103.

[0367] As a specific example, when the sensor unit 100' of the touch input device according to the second embodiment is configured to have a screen size of approximately 10 to 14 inches, which is the screen size of a landscape type tablet PC, and is embodied as example No. 3 in Table 2 above, the number of total channels and the number of drive trace channels (TX Trace Channels) of the sensor unit 100' are summarized as shown in Table 4 below. [Table 4] In Table 4 above, the number of channels of the Stylus TX is equal to the number of the second patterns 102. This is because the number of the second patterns 102 is equal to the number of the first patterns 101, and each end of the second patterns 102 is individually connected to one conductive pattern as shown in FIG.

[0368] In Table 4 above, the number of TX trace channels is the sum of the number of Finger TX channels and the number of Stylus TX channels. The number of TX trace channels is the main factor that determines the thickness of the bezel on the minor axis of the touch input device. The more the number of TX trace channels is reduced, the more the thickness of the bezel on the minor axis of the touch input device can be reduced.

[0369] The example of Table 4 above has a disadvantage in that the number of channels is somewhat increased compared to Table 3 above, but has an advantage in that the voltage value of the stylus sensing signal received by the controller is larger because the pen sensing signal from the stylus pen is received through a number of second patterns 102 instead of a number of first patterns 101. The applicant has confirmed through experiments that the voltage value of the stylus sensing signal received by the controller is about twice as large as that of Table 3.

[0370] In addition, since each of the multiple second patterns 102 is composed of one channel, when the multiple second patterns 102 are used as a stylus driving electrode (Stylus TX), the spacing between the channels is reduced by half compared to the example of Table 3, which has the advantage of improving the resolution of the stylus driving.

[0371] As another specific example, when the sensor unit 100' of the touch input device according to the second embodiment is configured with a screen size of about 10 to 14 inches, which is the screen size of a landscape type tablet PC, and is embodied as example No. 8 in Table 2 above, the number of total channels and the number of drive trace channels (TX Trace Channels) of the sensor unit 100' are summarized as shown in Table 5 below. [Table 5] In Table 5 above, the number of channels of the Stylus TX is equal to the number of the multiple fourth patterns 104. This is because the number of the multiple fourth patterns 104 is equal to the number of the multiple third patterns 103, and each end of the multiple fourth patterns 104 is individually connected to one conductive pattern as shown in FIG.

[0372] In Table 5 above, the number of TX trace channels is the same as the number of Finger TX channels. The number of TX trace channels is a major factor in determining the thickness of the bezel on the minor axis of the touch input device. The smaller the number of TX trace channels, the smaller the thickness of the bezel on the minor axis of the touch input device.

[0373] Table 5 above has the disadvantage that the total number of channels is somewhat increased compared to the example of Table 3 above, but has the advantage that the voltage value of the pen sensing signal received by the control unit is larger because the pen sensing signal from the stylus pen is received through a plurality of fourth patterns 104.

[0374] In addition, since each of the multiple fourth patterns 104 is composed of one channel, when the multiple fourth patterns 104 are used as driving electrodes (Stylus TX), the spacing between the channels is reduced by half compared to the example in Table 3 above, which has the advantage of improving the driving resolution.

[0375] Also, the number of TX trace channels can be reduced to 1 / 4 to 1 / 3 of the example in Table 3 above, and the thickness of the width direction bezel B of the touch input device can be reduced.

[0376] FIG. 23 is a schematic diagram showing still another example of the sensor unit 100' shown in FIG.

[0377] In the sensor unit 100'' of Fig. 23, each first pattern 101' includes at least two or more 1a patterns 101a and 1b patterns 101b, and each second pattern 102' includes at least two or more 2a patterns 102a and 2b patterns 102b. The multiple third and fourth patterns 103, 104 are the same as those in the sensor unit 100 of Fig. 19.

[0378] The 1a pattern 101a and the 1b pattern 101b are arranged along the extension direction of the first pattern 101'. The 2a pattern 102a and the 2b pattern 102b are arranged along the extension direction of the second pattern 102'.

[0379] The other ends of the plurality of 2a patterns 102a are electrically connected to each other, and the other ends of the plurality of 2b patterns 102b are electrically connected to each other, where the other ends of the plurality of 2a patterns 102a and the other ends of the plurality of 2b patterns 102b face each other.

[0380] One ends of the multiple 2a patterns 102a may be electrically connected to two or more adjacent 2a patterns. One ends of the multiple 2b patterns 102b may be electrically connected to two or more adjacent 2b patterns. Here, one ends of the multiple 2a patterns 102a and one ends of the multiple 2b patterns 102b may be electrically connected to conductive patterns individually, as shown in FIG.

[0381] As a specific example, when the sensor unit 100'' shown in FIG. 23 is configured with a screen size of about 10 to 14 inches, which is the screen size of a landscape type tablet PC, and is configured as in example No. 1 of Table 2 above, the number of total channels and the number of driving trace channels (TX Trace Channels) of the sensor unit 100'' are summarized as shown in Table 6 below. [Table 6] In Table 6 above, the number of channels of the Stylus TX is the number of the second patterns 102' divided by 2. This is because the number of the second patterns 102' is the same as the number of the first patterns 101', and the number of the second patterns 102' is determined by electrically connecting two adjacent second patterns to each other.

[0382] In Table 6 above, the number of TX trace channels is the sum of the number of Finger TX channels and the number of Stylus TX channels. The number of TX trace channels is the main factor that determines the width direction bezel thickness of the touch input device. The more the number of TX trace channels is reduced, the more the thickness of the bezel in the short axis of the touch input device can be reduced.

[0383] Table 6 above has a disadvantage in that the number of channels is somewhat increased compared to the example of Table 3 above. However, since the length of each of the first patterns 101′ and the second patterns 102′ is reduced by half, it is advantageous in that the operating frequency bandwidth of the touch driving signal applied to the touch driving electrode and the pen driving signal for driving the stylus pen can be increased by reducing the resistance and capacitance of the sensor unit 100″.

[0384] FIG. 24 is a diagram showing an embodiment of the touch input device shown in FIG.

[0385] Referring to FIG. 24, a touch input device 500 may include a sensor unit 100A and a control unit 300 for controlling the sensor unit 100A.

[0386] The sensor unit 100A is an example of the sensor unit 100' shown in Fig. 20. Therefore, the sensor unit 100A includes a number of first to fourth patterns 101A, 102A, 103A, and 104A.

[0387] The first pattern 101A has a shape extending along a first direction (width direction). The first direction may be a long axis direction L of the screen of the touch input device 500. The first pattern 101A may also be named ATX (Active TX).

[0388] The first pattern 101A may include a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions. Here, the main pattern portion may have a diamond shape, but is not limited thereto, and may have various shapes different from the connecting pattern portion.

[0389] The first pattern 101A may have an opening in which the second pattern 102A is disposed. The shape of the opening may correspond to the outer shape of the first pattern 101A. The first pattern 101A may have a structure surrounding the second pattern 102A. The first pattern 101A is disposed at a predetermined distance from the second pattern 102A.

[0390] The second pattern 102A has a shape extending along the first direction, is disposed adjacent to the first pattern 101A, and is disposed at a predetermined distance from the first pattern 101A. The second pattern 102A may also be named DTX (Dummy TX).

[0391] The second pattern 102A is disposed inside the first pattern 101A.

[0392] The second pattern 102A may include a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions. Here, the main pattern portion may have a diamond shape, but is not limited thereto, and may have various shapes different from the connecting pattern portion.

[0393] The main pattern portion of second pattern 102A may have a shape corresponding to that of the main pattern portion of first pattern 101A, and the connecting pattern portion of second pattern 102A may have a shape corresponding to that of the connecting pattern portion of first pattern 101A.

[0394] The third pattern 103A has a shape extending along a second direction different from the first direction. The second direction may be perpendicular to the first direction and may be a short axis direction S of the screen of the touch input device. The third pattern 103A may also be named ARX (Active RX).

[0395] The third pattern 103A may include a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions. Here, the main pattern portion may have a diamond shape, but is not limited thereto, and may have various shapes different from the connecting pattern portion.

[0396] The third pattern 103A may have an opening in which the fourth pattern 104A is disposed. The shape of the opening may correspond to the outer shape of the third pattern 103A. The third pattern 103A may have a structure surrounding the fourth pattern 104A. The third pattern 103A is disposed at a predetermined distance from the fourth pattern 104A.

[0397] The fourth pattern 104A has a shape extending along the second direction, is disposed adjacent to the third pattern 103A, and is disposed at a predetermined distance from the third pattern 103A. The fourth pattern 104A may also be named DRX (dummy RX).

[0398] The fourth pattern 104A is disposed inside the third pattern 103A.

[0399] The fourth pattern 104A may include a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions. Here, the main pattern portion may have a diamond shape, but is not limited thereto, and may have various shapes different from the connecting pattern portion.

[0400] A main pattern portion of fourth pattern 104A may have a shape corresponding to that of the main pattern portion of third pattern 103A, and a connecting pattern portion of fourth pattern 104A may have a shape corresponding to that of the connecting pattern portion of third pattern 103A.

[0401] The third and fourth patterns 103A and 104A are disposed on the first and second patterns 101A and 102A, and are disposed at a predetermined interval from the first and second patterns 101A and 102A. Meanwhile, the sensor unit in which the first to fourth patterns are disposed on the same layer will be described in detail with reference to FIG.

[0402] One end (first side end) of each of the first patterns 101A is electrically connected to the control unit 300, and the other end (second side end) is electrically open, although not shown in the drawings. Here, the one end (first side end) is relatively close to the control unit 300, and the other end (second side end) is relatively far from the control unit 300.

[0403] Although not shown in the drawings, one end of each of the first patterns 101A may be electrically connected to the control unit 300 via a conductive pattern. The conductive pattern connecting the first patterns 101A and the control unit 300 may be arranged inside a width direction bezel B of the touch input device 500.

[0404] One end (first side end) of the plurality of second patterns 102A may be electrically connected to the controller 300 via the second conductive pattern after two adjacent one ends are electrically connected to each other via the first conductive pattern. The other end (second side end) of the plurality of second patterns 102A is electrically connected to the controller 300 via the conductive pattern. The one end (first side end) is relatively close to the controller 300, and the other end (second side end) is relatively far from the controller 300.

[0405] 24, the second conductive pattern connecting the plurality of second patterns 102A and the control unit 300 may be arranged inside a widthwise bezel B of the touch input device 500. Here, the second conductive pattern connecting the plurality of second patterns 102A and the control unit 300 may be arranged inside a widthwise bezel B of the touch input device 500 together with a conductive pattern (not shown) connecting the plurality of first patterns 101A and the control unit 300.

[0406] If the other ends of the second patterns 102A are electrically connected to each other, the capacitance of each second pattern 102A is added, and the overall impedance is reduced, resulting in the same effect as if the other ends of the second patterns 102A were AC GND.

[0407] Meanwhile, although not shown in the drawing, the other ends of the plurality of second patterns 102A electrically connected to each other may be grounded. Also, although not shown in the drawing, the other ends of the plurality of second patterns 102A may not be electrically connected to each other, and a predetermined capacitor may be connected to the other end of each second pattern 102A.

[0408] The multiple first patterns 101A and the multiple second patterns 102A may be disposed on the same layer. A metal mesh can be used to form the multiple first patterns 101A and the multiple second patterns 102A on the same layer.

[0409] One end (first side end) of the plurality of third patterns 103A is electrically connected to the control unit 300, and the other end (second side end) is electrically open. Here, the one end (first side end) is relatively close to the control unit 300, and the other end (second side end) is relatively far from the control unit 300. One end of the plurality of third patterns 103A may be electrically connected to the control unit 300 via a conductive pattern.

[0410] One end (first side end) of the plurality of fourth patterns 104A may be electrically open. Here, the other end (second side end) of the plurality of fourth patterns 104A may be electrically connected to the plurality of second patterns 102A in the same manner. Here, the one end (first side end) is relatively close to the control unit 300, and the other end (second side end) is relatively far from the control unit 300.

[0411] Meanwhile, although not shown in the drawing, the other ends of the plurality of fourth patterns 104A electrically connected to each other may be grounded. Also, the other ends of the plurality of fourth patterns 104A may not be electrically connected to each other, and a predetermined capacitor may be connected to the other end of each of the fourth patterns 104A.

[0412] The third pattern 103A and the fourth pattern 104A may be disposed in the same layer. The third pattern 103A and the fourth pattern 104A may be formed in the same layer using a metal mesh. Here, the third pattern 103A and the fourth pattern 104A may be disposed in a different layer from the first pattern 101A and the second pattern 102A. For example, the third pattern 103A and the fourth pattern 104A may be disposed in the first floor, and the first pattern 101A and the second pattern 102A may be disposed in the second floor different from the first floor. Meanwhile, the sensor unit in which the first to fourth patterns are disposed in the same layer will be described in detail with reference to FIG. 30.

[0413] The control unit 300 is electrically connected to the sensor unit 100A and can control the operation of the sensor unit 100A. The control unit 300 and the sensor unit 100A can be electrically connected through a number of conductive patterns. Here, the control unit (or controller) 300 may be the touch controller 262 shown in FIG. 3, but is not limited thereto. The controller 300 may be an integrated unit of the touch controller 262 and the display controller 252 shown in FIG. 3, an integrated unit of the touch controller 262 and the controller 270 shown in FIG. 3, or an integrated unit of the touch controller 262, the display controller 252, and the controller 270 shown in FIG. 3. Alternatively, the controller 300 may be a separate controller included in the sensor unit 100. Therefore, the controller 300 in the present invention is not limited to the touch controller 262 or the controller 270 shown in FIG. 3, and a unit capable of controlling not only the sensor unit 100 but also the sensor units of the following embodiments may be named "controllers".

[0414] The control unit 300 may include a number of driving circuit units 310 and a number of sensing circuit units 330. Although not shown in a separate drawing, at least one of the driving circuit units 310 and the sensing circuit units 330 may be disposed outside the control unit 300 rather than being included in the control unit 300.

[0415] The multiple driving circuit units 310 may include a driving circuit unit that provides touch driving signals to the multiple first patterns 101A for sensing a touch position of an object such as a finger, and a driving circuit unit that provides a pen driving signal for driving a stylus pen.

[0416] The plurality of sensing circuits 330 may receive sensing signals through the plurality of third patterns 103A and may include a sensing circuit for detecting a touch position of an object such as a finger and a sensing circuit for sensing a stylus pen, where some of the plurality of sensing circuits may sense the touch position and also sense the stylus pen.

[0417] The controller 300 may control the sensor unit 100A to operate in any one of a touch driving / sensing mode, an antenna driving mode, and a stylus pen sensing mode. The controller 300 may selectively electrically connect and control a number of driving / sensing circuits 310 and 330 to the sensor unit 100A according to each mode. To this end, the controller 300 may include a number of switches that electrically connect the number of driving / sensing circuits 310 and 330 to the sensor unit 100A according to a command from the controller 300.

[0418] The operation mode of the touch input device 500 shown in Fig. 24 will be described in detail. Here, Fig. 24 is shown as an example of No. 1 in Table 2 above, so the description will be based on this.

[0419] In the touch driving / sensing mode, the controller 300 can electrically connect a number of driving circuit units 310 to a number of first patterns 101A of the sensor unit 100A to sense a touch position of an object such as a finger. The controller 300 can electrically connect conductive patterns connected to the number of first patterns 101A to a number of driving circuit units 310 by controlling a number of switches.

[0420] In addition, the control unit 300 can electrically connect a plurality of sensing circuit units 330 for sensing a touch position to a plurality of third patterns 103A of the sensor unit 100A. The control unit 300 can electrically connect the conductive patterns connected to the plurality of third patterns 103A to the plurality of sensing circuit units 330 by controlling a plurality of switches.

[0421] In such a touch driving / sensing mode, the controller 300 simultaneously or sequentially applies driving signals (or touch driving signals) for touch sensing to the multiple first patterns 101A and receives sensing signals (or touch sensing signals) from the multiple third patterns 103A. The multiple sensing circuits of the controller 300 electrically connected to the multiple third patterns 103A can output information on the amount of capacitance change included in the input sensing signal as a predetermined voltage value. The controller 300 can process the output voltage value to detect the touch position.

[0422] Meanwhile, in the touch driving / sensing mode, the controller 300 may electrically connect the driving circuit units 310 to the second patterns 102A so that capacitive coupling between the first patterns 101A and the second patterns 102A does not occur. At this time, the controller 300 may control the second patterns 102A to apply the same driving signal as the driving signal applied to the first patterns 101A. Alternatively, the controller 300 may control the second patterns 102A to apply a predetermined reference potential when the driving signal is applied to the first patterns 101A.

[0423] In the antenna driving mode (or stylus driving mode or stylus uplink mode), the control unit 300 can electrically connect a number of driving circuit units 310 for driving the antenna to a number of second patterns 102A of the sensor unit 100A. The control unit 300 can electrically connect the conductive patterns connected to the number of second patterns 102A to a number of driving circuit units 310 by controlling a number of switches.

[0424] The control unit 300 may control the driving signals (or pen driving signals) output from each driving circuit unit 310 connected to the second patterns 102A. For example, the control unit 300 may control the first driving circuit unit of the multiple driving circuit units 310 connected to the second patterns 102A to output a pulse signal of a predetermined frequency, control the second driving circuit unit not to output any pulse signal, and control the third driving circuit unit to output an inverted pulse signal having a phase opposite to that of the pulse signal output from the first driving circuit unit. In this case, a current loop is formed between the second pattern electrically connected to the first driving circuit unit and the second pattern electrically connected to the third driving circuit unit. A magnetic field is generated by the formed current loop, and the stylus pen close to the sensor unit 100A may be driven by the magnetic field.

[0425] The control unit 300 may control the driving circuits 310 electrically connected to the second patterns 102A to output mutually opposing driving signals from any two of the driving circuits 310. Thus, the control unit 300 may change and set the size and position of the current loop in various ways. For example, when the control unit 300 detects the position of a stylus pen close to the sensor unit 100A, it may control the driving circuits 310 electrically connected to the two second patterns around the position of the stylus pen to output mutually opposing pulse signals, and when the control unit 300 cannot detect the position of the stylus pen, it may control the driving circuits 310 electrically connected to the two second patterns located on the outermost sides of the second patterns 102A to output mutually opposing pulse signals.

[0426] Fig. 25 is a diagram for explaining a method in which the control unit 300 of Fig. 24 applies a pen driving signal for driving a stylus pen to a plurality of second patterns 102A. For reference, Fig. 25 shows one second pattern 102A shown in Fig. 24 simply as one line Ch, and each line Ch corresponds to one channel.

[0427] As shown in Fig. 25, two adjacent second patterns are electrically connected to each other to form one channel. In this configuration, the same signal is applied to the two electrically connected second patterns at the same time. Fig. 25 shows 84 second patterns connected in pairs to form 42 channels Ch0, Ch1, ..., Ch41.

[0428] For example, when the stylus pen 50 is located between the second channel Ch2 and the third channel Ch3 among the 42 channels Ch0, Ch1, ..., Ch41, the control unit 300 can control the stylus pen 50 to output a pen driving signal from one or more channels located on the second channel Ch2 side, and control the stylus pen 50 to output a pen driving signal having an inverted phase of the pen driving signal from one or more channels located on the third channel Ch3 side.

[0429] In a stylus sensing mode (or a stylus downlink mode), the controller 300 can electrically connect a number of sensing circuit units 330 for stylus sensing to a number of first patterns 101A and a number of third patterns 103A of the sensor unit 100A. The controller 300 can electrically connect conductive patterns connected to the number of first patterns 101A and the number of third patterns 103A to a number of sensing circuit units 330 by controlling a number of switches.

[0430] The touch input device 500 according to the embodiment of the present invention has an advantage that the output voltage values ​​of the multiple sensing circuits 330 are almost unchanged depending on the position of the stylus pen on the sensor unit 100A in the stylus sensing mode due to the configuration of the sensor unit 100A. The specific principle of this will be described with reference to (a) to (f) of FIG.

[0431] 26(a) to (f) are diagrams for roughly explaining the operation principle of the touch input device of FIG. 24 in a stylus sensing mode.

[0432] Fig. 26(a) is a circuit diagram showing a schematic model of any one of the first patterns 101A shown in Fig. 24 and the sensing circuit unit 330 of the control unit 300 electrically connected thereto, and Fig. 26(b) is a circuit diagram showing a schematic model of the second pattern 102A disposed inside any one of the first patterns 101A. Fig. 26(c) is a voltage distribution graph in the circuit diagram of Fig. 26(a), and Fig. 26(d) is a voltage distribution graph in the circuit diagram of Fig. 26(b).

[0433] 26(a) and (c), when a stylus pen approaches an arbitrary point A on the first pattern 101A that is as far away as possible from the sensing circuit unit 330, a voltage (Vemf, hereinafter referred to as "induced voltage") induced by a signal emitted from the stylus pen is generated at the point A. When the induced voltage (Vemf) is generated at the point A, the equivalent capacitance of the first pattern 101A viewed from the left side of the point A becomes small, and the equivalent impedance becomes large. Therefore, the induced voltage (Vemf) is applied almost entirely to the left of the point A, and a voltage close to 0 (V) is applied to the right side of the point A, and almost no current flows. Moreover, the voltage close to 0 (V) on the right side of the point A gradually decreases due to the equivalent resistance of the first pattern 101A, and almost no voltage is applied to the input terminal of the sensing circuit unit.

[0434] 26(b) and (d), when an induced voltage (Vemf) occurs at point A, the other ends of the second patterns 102A on the left side of point A are electrically connected to each other, so the equivalent capacitance viewed from the left side of point A becomes large and the equivalent impedance approaches almost 0. Therefore, 0 (V) is applied to the left side of point A, and one end of the second pattern 102A on the right side of point A is open, so no voltage drop occurs due to the equivalent resistance and Vemf is applied as is.

[0435] 26(c) and (d), it can be seen that there is a potential difference of Vemf between the first pattern 101A and the second pattern 102A at any position. The potential difference of Vemf between the first pattern 101A and the second pattern 102A causes capacitive coupling between the first pattern 101A and the second pattern 102A. Due to the capacitive coupling, a current flows from the second pattern 102A to the first pattern 101A as shown in FIG. 26(e). As the position of the stylus pen moves farther away from the sensing circuit unit 330 of the control unit 300, the current generated in the first pattern 101A itself gradually decreases, but since a current flows from the second pattern 102A to the first pattern 101A, the current output from the first pattern 101A to the sensing circuit unit 330 of the control unit 300 becomes almost the same as the position of the pen. Therefore, the controller 300 can sense the position of the stylus pen through the sensing circuit unit 330 electrically connected to the first pattern 101A.

[0436] 26(a) to 26(e), even if point A moves to the left or right, the potential difference between the first pattern 101A and the second pattern 102A is constant as Vemf. Therefore, regardless of whether the position of the stylus pen on the sensor unit 100A is close or far from the sensing circuit unit, the control unit 300 can sense the stylus pen from a constant signal output from the sensing circuit unit 330.

[0437] 26(e), the current flowing from the second pattern 102A to the first pattern 101A is due to capacitive coupling, but this is not limited to this. For example, the current flowing from the second pattern 102A to the first pattern 101A can also be due to magnetic coupling.

[0438] The principles of (a) to (e) of Fig. 26 described above can be directly applied to any one of the third pattern 103 and the fourth pattern 104 in the second direction, and can also be directly applied to the touch input device according to the first embodiment shown in Fig. 16.

[0439] FIG. 26(f) is a voltage distribution graph when the sensing circuit unit 330 is connected to the right open terminal of the modeled circuit diagram of the second pattern 102A shown in FIG. 26(b). That is, the voltage distribution graph of FIG. 26(f) illustrates a case where one end of the second pattern 102A is connected to the sensing circuit unit 330 of the control unit 300. Comparing FIG. 26(f) and FIG. 26(d), in FIG. 26(f), a voltage drop occurs due to the equivalent resistance toward the right of point A. Therefore, in the case of FIG. 26(f), as in FIG. 26(e), a potential difference of Vemf between the first pattern and the second pattern cannot be maintained, and a current cannot be transferred from the second pattern to the first pattern. Therefore, the current output from the first pattern decreases as the position of the pen moves away from the control unit 300. In the stylus sensing mode, it is preferable to open one end of the second pattern 102A and float it.

[0440] 26 is the same as that of a smartphone, for example, 6.9 inches, there is no particular problem, but if the screen size of the touch input device shown in FIG. 26 is increased to about 10 to 14 inches, which is the screen size of a tablet PC, the sensor unit 100A also increases in size, and the resistance and capacitance value of the sensor unit 100A increases. The increase in resistance and capacitance value causes the operating frequency bandwidth of the touch driving signal applied to the touch driving electrode and the pen driving signal for driving the stylus pen to be much narrower than that of a smartphone (6.9 inches), and there is a problem that the operating frequency bandwidth required for the design cannot be obtained.

[0441] In addition, the pen detection signal received from the stylus pen is also attenuated as the sensor unit 100A becomes larger. In particular, the pen detection signal from the part of the sensor unit 100A located farthest from the control unit 300 is attenuated in the process of being transmitted to the control unit 300, which causes a problem that a voltage value required by design cannot be output.

[0442] In the following, a touch input device capable of solving the above-mentioned problems will be described.

[0443] FIG. 27 is a diagram showing an embodiment of the touch input device shown in FIG.

[0444] Referring to FIG. 27, a touch input device 500'' may include a sensor unit 100A'' and a control unit 300 for controlling the sensor unit 100A''.

[0445] The sensor unit 100A'' includes a number of first to fourth patterns 101A, 102A'', 103A, and 104A. Here, the first, third, and fourth patterns 101A, 103A, and 104A are the same as the first, third, and fourth patterns 101A, 103A, and 104A shown in FIG. 24, and therefore a description thereof will be omitted.

[0446] Hereinafter, the plurality of second patterns 102A'' will be described, but a description of the same parts as the plurality of second patterns 102A of FIG. 12 will be omitted for the sake of convenience.

[0447] One end (first side end) of each of the plurality of second patterns 102A'' may be electrically connected to the control unit 300 via a conductive pattern. This portion differs from the plurality of second patterns 102A in FIG.

[0448] The other ends (second side ends) of the plurality of second patterns 102A'' are electrically connected to each other via a conductive pattern. One end is relatively close to the control unit 300, and the other end is relatively far from the control unit 300.

[0449] The operation mode of the touch input device 500'' shown in FIG. 27 will now be described in detail.

[0450] In the touch driving / sensing mode, the controller 300 can electrically connect a number of driving circuit units 310 to a number of first patterns 101A of the sensor unit 100A″ to sense a touch position of an object such as a finger. The controller 300 can electrically connect conductive patterns connected to the number of first patterns 101A to a number of driving circuit units 310 by controlling a number of switches.

[0451] In addition, the control unit 300 can electrically connect a plurality of sensing circuit units 330 for sensing a touch position to a plurality of third patterns 103A of the sensor unit 100A''. The control unit 300 can electrically connect conductive patterns connected to a plurality of third patterns 103A to a plurality of sensing circuit units 330 by controlling a plurality of switches.

[0452] In such a touch driving / sensing mode, the controller 300 simultaneously or sequentially applies driving signals (or touch driving signals) for touch sensing to the multiple first patterns 101A and receives sensing signals (or touch sensing signals) from the multiple third patterns 103A. The multiple sensing circuits of the controller 300 electrically connected to the multiple third patterns 103A can output information on the amount of capacitance change included in the input sensing signal as a predetermined voltage value. The controller 300 can process the output voltage value to detect the touch position.

[0453] In the antenna driving mode (or stylus driving mode or stylus uplink mode), the control unit 300 can electrically connect a number of driving circuit units 310 for driving the antenna to a number of second patterns 102A'' of the sensor unit 100A''. The control unit 300 can electrically connect conductive patterns connected to a number of second patterns 102A'' to a number of driving circuit units 310 by controlling a number of switches.

[0454] The control unit 300 can control driving signals (or pen driving signals) output from each driving circuit unit 310 connected to the plurality of second patterns 102A''. The control unit 300 can control any two driving circuit units among the plurality of driving circuit units 310 electrically connected to the plurality of second patterns 102A'' to output pulse signals opposite to each other. Therefore, the control unit 300 can variously change and set the size and position of the current loop.

[0455] In the stylus sensing mode (or stylus downlink mode), the control unit 300 can electrically connect a number of sensing circuit units 330 for stylus sensing to a number of second patterns 101A'' and a number of third patterns 103A of the sensor unit 100A''. This part is different from the stylus sensing mode of the touch input device shown in FIG.

[0456] The control unit 300 can electrically connect the conductive patterns connected to the second patterns 101A'' and the third patterns 103A to the sensing circuit units 330 by controlling the switches.

[0457] The touch input device 500'' shown in FIG. 27 is different from the touch input device shown in FIG. 24 in the configuration of connecting the multiple second patterns 102A'' of the sensor unit 100A'' to the controller 300. That is, the multiple second patterns 102A in FIG. 24 are connected to the controller 300 through the second conductive pattern after two adjacent second patterns are electrically connected to each other through a first conductive pattern, whereas the multiple second patterns 102A'' in FIG. 27 are each connected to the controller 300 through a conductive pattern. Due to such a configuration feature, the touch input device 500'' shown in FIG. 27 has a disadvantage of having an increased number of channels compared to the touch input device 500 of FIG. 24, but has an advantage of being able to reduce power consumption since a pen driving signal can be applied only to a specific portion where a stylus pen is located in an antenna driving mode for driving a stylus pen.

[0458] In addition, the touch input device 500 shown in FIG. 24 has a pattern for detecting signals emitted from a stylus pen in a stylus sensing mode, which is a plurality of first patterns 101A in the major axis direction L and a plurality of third patterns 103A in the minor axis direction S, whereas the touch input device 500'' shown in FIG. 27 has a pattern for detecting signals emitted from a stylus pen in a stylus sensing mode, which is a plurality of second patterns 102A'' in the major axis direction L and a plurality of third patterns 103A in the minor axis direction S.

[0459] In the touch input device 500'' shown in FIG. 27, if the pattern in the longitudinal direction L for sensing a signal emitted from a stylus pen in a stylus sensing mode is a plurality of second patterns 102A'' instead of a plurality of first patterns 101A, the coupling capacitance between the first pattern 101A and the second pattern 102A'' can be reduced compared to the touch input device 500 shown in FIG. 24, thereby improving the operating frequency bandwidth of the touch driving signal and the touch sensing signal for sensing the touch position and improving the operating frequency bandwidth of the pen driving signal for driving the stylus pen.

[0460] In addition, since the control unit 300 receives a pen sensing signal from the stylus pen through a plurality of second patterns 102A'' in the stylus sensing mode, the voltage value of the received pen sensing signal is relatively high. In particular, since the voltage value of the pen sensing signal received at the point farthest from the control unit 300 in the major axis direction L is relatively higher than that in the case of FIG. 24, the sensing sensitivity is improved. This is because capacitive coupling between the first pattern 101A and the second pattern 102A does not need to be taken into consideration. Specifically, in the case of FIG. 24, as described above in FIG. 26(e), a current flows from the second pattern 102A to the first pattern 101A due to the capacitive coupling between the first pattern 101A and the second pattern 102A, so there is attenuation of the pen sensing signal input to the control unit 300 through the first pattern 101A. However, in the touch input device 500'' of FIG. 27, since the signal is directly input to the controller 300 through the second pattern 102A'' instead of the first pattern 101A, there is no attenuation of the pen sensing signal due to capacitive coupling.

[0461] In addition, since each of the multiple second patterns 102A'' is composed of one channel, when the multiple second patterns 102A'' are used as driving electrodes (Stylus TX), the distance between the channels is reduced by half compared to the touch input device of FIG. 24, which has the advantage of improving the driving resolution.

[0462] FIG. 28 is a diagram showing an embodiment of the touch input device shown in FIG.

[0463] Referring to FIG. 28, a touch input device 500'' may include a sensor unit 100A''' and a control unit 300 for controlling the sensor unit 100A'''.

[0464] The sensor unit 100A''' includes a plurality of first to fourth patterns 101A, 102A''', 103A, 104A'. Here, the first and third patterns 101A and 103A are the same as the first and third patterns 101A and 103A shown in FIG. 24, so a description thereof will be omitted.

[0465] Hereinafter, the second and fourth patterns 102A''', 104A' will be described, but a description of the same parts as the second and fourth patterns 102A, 104A of FIG. 24 will be omitted for the sake of convenience.

[0466] One end of the plurality of second patterns 102A''' may be floating, and the other end of the plurality of second patterns 102A''' may be electrically connected via a conductive pattern. The one end may be relatively close to the control unit 300, and the other end may be relatively far from the control unit 300.

[0467] One end of each of the fourth patterns 104A' is electrically connected to the control unit 300 through a conductive pattern, and the other end of each of the fourth patterns 104A' is electrically connected to the control unit 300 through the conductive pattern. One end is relatively close to the control unit 300, and the other end is relatively far from the control unit 300.

[0468] The operation mode of the touch input device 500'' shown in FIG. 28 will now be described in detail.

[0469] In the touch driving / sensing mode, the controller 300 can electrically connect a number of driving circuit units 310 to a number of first patterns 101A of the sensor unit 100A''' to sense a touch position of an object such as a finger. The controller 300 can electrically connect conductive patterns connected to the number of first patterns 101A to a number of driving circuit units 310 by controlling a number of switches.

[0470] In addition, the control unit 300 can electrically connect a plurality of sensing circuit units 330 for sensing a touch position to a plurality of third patterns 103A of the sensor unit 100A'''. The control unit 300 can electrically connect conductive patterns connected to a plurality of third patterns 103A to a plurality of sensing circuit units 330 by controlling a plurality of switches.

[0471] In such a touch driving / sensing mode, the controller 300 simultaneously or sequentially applies driving signals (or touch driving signals) for touch sensing to the multiple first patterns 101A and receives sensing signals (or touch sensing signals) from the multiple third patterns 103A. The multiple sensing circuits of the controller 300 electrically connected to the multiple third patterns 103A can output information on the amount of capacitance change included in the input sensing signal as a predetermined voltage value. The controller 300 can process the output voltage value to detect the touch position.

[0472] In the antenna driving mode (or stylus driving mode or stylus uplink mode), the control unit 300 can electrically connect a number of driving circuit units 310 for driving the antenna to a number of fourth patterns 104A' of the sensor unit 100A'''. The control unit 300 can electrically connect the conductive patterns connected to the number of fourth patterns 104A' to a number of driving circuit units 310 by controlling a number of switches.

[0473] The control unit 300 can control driving signals (or pen driving signals) output from each driving circuit unit 310 connected to the fourth patterns 104A'. The control unit 300 can control any two of the driving circuit units 310 electrically connected to the fourth patterns 104A' to output opposite pulse signals. Therefore, the control unit 300 can variously change and set the size and position of the current loop.

[0474] In the stylus sensing mode (or stylus downlink mode), the control unit 300 can electrically connect a number of sensing circuit units 330 for stylus sensing to a number of first patterns 101A and a number of fourth patterns 104A' of the sensor unit 100A''. This part is different from the stylus sensing mode of the touch input device of FIG. 24.

[0475] The control unit 300 may electrically connect the conductive patterns connected to the first patterns 101A and the fourth patterns 104A′ to the sensing circuit units 330 by controlling the switches.

[0476] The touch input device 500''' shown in FIG. 28 is different from the touch input device shown in FIG. 24 in that the multiple second patterns 102A''' of the sensor unit 100A''' are electrically floating and not used, and the stylus pen is driven via the multiple fourth patterns 104A'. Due to this structural feature, the touch input device 500''' shown in FIG. 28 has a disadvantage in that the number of channels is increased compared to the touch input device 500 of FIG. 24, but since the multiple second patterns 102A are not used, there is no conductive pattern connected to one end of the multiple second patterns 102A. Therefore, there is an advantage in that the thickness of the left / right bezel B can be significantly reduced relatively compared to FIG. 24.

[0477] The touch input device shown in Fig. 28 has a disadvantage in that the total number of channels is somewhat increased compared to the touch input device of Fig. 24, but has an advantage in that the voltage value of the pen sensing signal received by the control unit 300 is larger because the pen sensing signal is directly received from the stylus pen via a plurality of fourth patterns 104A', which is about twice as large as the voltage value of the pen sensing signal received by the control unit 300 of the touch input device of Fig. 24.

[0478] In addition, since each of the multiple fourth patterns 104A' is composed of one channel, when the multiple fourth patterns 104A' are used as driving electrodes (Stylus TX), the spacing between the channels is reduced by half compared to the touch input device of FIG. 24, which has the advantage of improving the driving resolution.

[0479] Also, the number of TX trace channels can be reduced to 1 / 4 to 1 / 3 of that in the touch input device shown in FIG. 24, and the thickness of the bezel B can be reduced.

[0480] FIG. 29 is a diagram showing an embodiment of the touch input device shown in FIG.

[0481] Referring to FIG. 29, a touch input device 500' may include a sensor unit 100A'' and a control unit 300 for controlling the sensor unit 100A''.

[0482] The sensor unit 100A'' includes a plurality of first to fourth patterns 101A', 102A', 103A, and 104A. Here, the third and fourth patterns 103A and 104A are the same as the third and fourth patterns 103A and 104A shown in FIG. 24, and therefore a description thereof will be omitted.

[0483] Hereinafter, the first and second patterns 101A' and 102A' will be described, but a description of the same parts as the first and second patterns 101A and 102A of FIG. 24 will be omitted for the sake of convenience.

[0484] The first pattern 101A' has a shape extending along a first direction. The first direction may be a long axis direction L of a screen of the touch input device. The first pattern 101A' includes a pattern 1a 101a' and a pattern 1b 101b'. The pattern 1a 101a' and the pattern 1b 101b' are arranged along the first direction and spaced apart from each other by a predetermined distance. The first pattern 101A' including the pattern 1a 101a' and the pattern 1b 101b' may also be named ATX (Active TX).

[0485] The second pattern 102A' has a shape extending along the first direction, is disposed adjacent to the first pattern 101A', and is disposed at a predetermined interval from the first pattern 101A'. The second pattern 102A' includes a 2a pattern 102a' and a 2b pattern 102b'. The 2a pattern 102a' and the 2b pattern 102b' are arranged along the first direction and are disposed at a predetermined interval from each other. The second pattern 102A' including the 2a pattern 102a' and the 2b pattern 102b' may also be named DTX (Dummy TX).

[0486] In the plurality of first patterns 101A', one end of the plurality of 1a patterns 101a' is electrically connected to the control unit 300 and the other end is electrically open. Also, one end of the plurality of 1b patterns 101b' is electrically connected to the control unit 300 and the other end is electrically open. Here, one end is relatively close to the control unit 300 and the other end is relatively far from the control unit 300.

[0487] One end of each of the plurality of 1a patterns 101a' may be electrically connected to the control unit 300 via a conductive pattern. The conductive patterns connecting the plurality of 1a patterns 101a' to the control unit 300 may be arranged along the minor axis direction S inside the bezel B of the touch input device 500.

[0488] One ends of the plurality of 1b patterns 101b' may be electrically connected to the control unit 300 via conductive patterns. The conductive patterns connecting the plurality of 1b patterns 101b' to the control unit 300 may be arranged along the minor axis direction S inside the bezel B of the touch input device 500.

[0489] In the plurality of second patterns 102A', one end of the plurality of 2a patterns 102a' is electrically connected to the control unit 300 through the second conductive pattern after two adjacent one ends are electrically connected to each other through the first conductive pattern, and the other end of the plurality of 2a patterns 102a' is electrically connected to the control unit 300 through the conductive pattern. Similarly, one end of the plurality of 2b patterns 102b' is electrically connected to the control unit 300 through the second conductive pattern after two adjacent one ends are electrically connected to each other through the first conductive pattern, and the other end of the plurality of 2b patterns 102b' is electrically connected to the control unit 300 through the conductive pattern. Here, one end is relatively close to the control unit 300, and the other end is relatively far from the control unit 300.

[0490] The second conductive pattern connecting the plurality of 2a and 2b patterns 102a', 102b' and the controller 300 may be arranged in the minor axis direction S inside the bezel B of the touch input device 500'. Here, the second conductive pattern connecting the plurality of 2a and 2b patterns 102a', 102b' and the controller 300 may be arranged inside the bezel B of the touch input device 500 together with a conductive pattern (not shown) connecting the plurality of first patterns 101A' and the controller 300.

[0491] If the other ends of the multiple 2a patterns 102a' are electrically connected to each other, the capacitance of each 2a pattern 102a' is added, and the overall impedance is reduced. Therefore, the same effect is obtained as if the other ends of the multiple 2a patterns 102a' were AC GND. Similarly, if the other ends of the multiple 2b patterns 102b' are electrically connected to each other, the capacitance of each 2b pattern 102b' is added, and the overall impedance is reduced. Therefore, the same effect is obtained as if the other ends of the multiple 2b patterns 102b' were AC GND.

[0492] The operation mode of the touch input device 500' shown in FIG. 29 will now be described in detail.

[0493] In the touch driving / sensing mode, the controller 300 can electrically connect a number of driving circuit units 310 to a number of first patterns 101A' of the sensor unit 100A' to sense a touch position of an object such as a finger. The controller 300 can electrically connect the conductive patterns connected to the number of first patterns 101A' to a number of driving circuit units 310 by controlling a number of switches.

[0494] In addition, the control unit 300 can electrically connect a plurality of sensing circuit units 330 for sensing a touch position to a plurality of third patterns 103A of the sensor unit 100A'. The control unit 300 can electrically connect the conductive patterns connected to the plurality of third patterns 103A to the plurality of sensing circuit units 330 by controlling a plurality of switches.

[0495] In such a touch driving / sensing mode, the controller 300 simultaneously or sequentially applies driving signals (or touch driving signals) for touch sensing to the multiple first patterns 101A' and receives sensing signals (or touch sensing signals) from the multiple third patterns 103A. The multiple sensing circuits of the controller 300 electrically connected to the multiple third patterns 103A can output information on the amount of capacitance change included in the input sensing signal as a predetermined voltage value. The controller 300 can process the output voltage value to detect the touch position.

[0496] In the antenna driving mode (or stylus driving mode or stylus uplink mode), the control unit 300 can electrically connect a number of driving circuit units 310 for driving the antenna to a number of 2a patterns 102a' and a number of 2b patterns 102b' of the sensor unit 100A'. The control unit 300 can electrically connect conductive patterns connected to the number of 2a patterns 102a' and a number of 2b patterns 102b' to a number of driving circuit units 310 by controlling a number of switches.

[0497] The control unit 300 can control driving signals (or pen driving signals) output from each driving circuit unit 310 connected to the plurality of 2a patterns 102a' and the plurality of 2b patterns 102b'. The control unit 300 can control any two of the plurality of driving circuit units 310 electrically connected to the plurality of 2a patterns 102a' and the plurality of 2b patterns 102b' to output opposite pulse signals. Therefore, the control unit 300 can variously change and set the size and position of the current loop.

[0498] In a stylus sensing mode (or a stylus downlink mode), the controller 300 can electrically connect a number of sensing circuit units 330 for stylus sensing to a number of first patterns 101A' and a number of third patterns 103A' of the sensor unit 100A'. The controller 300 can electrically connect conductive patterns connected to the number of first patterns 101A' and the number of third patterns 103A to a number of sensing circuit units 330 by controlling a number of switches.

[0499] The touch input device 500' shown in Fig. 29 has a difference in configuration in the number of first and second patterns 101A', 102A' of the sensor unit 100A' compared to the touch input device shown in Fig. 24. That is, the number of first and second patterns 101A', 102A' is twice as many as the number of first and second patterns 101A, 102A of Fig. 24, since the first and second patterns 101A', 102A' are obtained by dividing the first and second patterns 101A, 102A of Fig. 24 in half.

[0500] Due to these configuration features, the touch input device 500' shown in FIG. 29 has a disadvantage in that the number of channels is increased compared to the touch input device 500 of FIG. 24, but has the advantage of being able to reduce power consumption since a pen driving signal can be applied only to a specific portion where the stylus pen is located in an antenna driving mode for driving the stylus pen.

[0501] In addition, the touch input device shown in FIG. 29 has a disadvantage in that the number of channels is slightly increased compared to the touch input device of FIG. 24, but has an advantage in that the length of each of the first patterns 101A' and the second patterns 102A' is reduced by half, thereby reducing the resistance and capacitance, and therefore the operating frequency bandwidth of the touch driving signal applied to the patterns used as the touch driving electrodes of the sensor unit 100A' and the pen driving signal for driving the stylus pen can be increased.

[0502] FIG. 30 is a diagram illustrating a modification of the sensor unit 100, 100' shown in FIG. 16 or FIG.

[0503] The sensor unit 100B shown in Fig. 30 may be used as a sensor unit of the touch input device according to the various embodiments of the present invention described above. Therefore, the specific structure and shape of the sensor unit 100B will be described below, and the driving method of the touch input device including the sensor unit 100B will be replaced with the above-mentioned method.

[0504] 30, the sensor unit 100B includes a plurality of first to fourth patterns 101A, 102A, 103B, and 104B. The plurality of first to fourth patterns 101A, 102A, 103B, and 104B are disposed together in the same layer.

[0505] The first pattern 101A has a shape extending along a first direction (width direction). The first direction may be a long axis direction of a screen of the touch input device. The first pattern 101A may also be named ATX (Active TX). The first pattern 101A has a predetermined shape in which an electrical path is formed along the first direction (width direction).

[0506] The first pattern 101A may include a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions. Here, the main pattern portion may have a diamond shape, but is not limited thereto, and may have various shapes different from the connecting pattern portion.

[0507] The first pattern 101A may have an opening in which the second pattern 102A is disposed. The shape of the opening may correspond to the outer shape of the first pattern 101A. The first pattern 101A may have a structure surrounding the second pattern 102A. The first pattern 101A is disposed at a predetermined distance from the second pattern 102A.

[0508] The second pattern 102A has a shape extending along the first direction, is disposed adjacent to the first pattern 101A, and is disposed at a predetermined distance from the first pattern 101A. The second pattern 102A may also be named DTX (Dummy TX). The second pattern 102A has a predetermined shape in which an electrical path is formed along the first direction (width direction) adjacent to the first pattern 101A.

[0509] The second pattern 102A is disposed inside the first pattern 101A.

[0510] The second pattern 102A may include a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions. Here, the main pattern portion has a diamond shape, but is not limited thereto and may have various shapes different from the connecting pattern portion.

[0511] The main pattern portion of second pattern 102A may have a shape corresponding to that of the main pattern portion of first pattern 101A, and the connecting pattern portion of second pattern 102A may have a shape corresponding to that of the connecting pattern portion of first pattern 101A.

[0512] The other ends (second side ends) of the second patterns 102A are electrically connected to each other by a second conductive pattern D2.

[0513] The third pattern 103B is disposed above and below one connecting pattern portion of the first pattern 101A. The third pattern 103B may have a diamond shape, but is not limited thereto, and may have various shapes different from the connecting pattern portion. The third pattern 103B may have an opening in which the fourth pattern 104B is disposed. The shape of the opening may correspond to the outer shape of the third pattern 103B. The third pattern 103B may have a structure surrounding the fourth pattern 104B. The third pattern 103B is disposed at a predetermined distance from the fourth pattern 104B. The third pattern 103B may also be named ARX (Active RX), and the fourth pattern 104B may also be named DRX (Dummy RX).

[0514] Among the third patterns 103B, the third patterns arranged along a second direction perpendicular to the first direction are electrically connected by the third conductive pattern D3. Therefore, the third patterns arranged along the second direction are electrically connected by the third conductive pattern D3, and may have the same electrical connection direction (electrical path) as the third pattern 103 shown in FIG. 16 or FIG. 19.

[0515] The third conductive pattern D3 is disposed to cross the connecting pattern portion of the first pattern 101A disposed between two adjacent third patterns. The third conductive pattern D3 may also be called a conductive bridge. Both ends of the third conductive pattern D3 are connected to vias connected to the third pattern 103B.

[0516] The fourth patterns arranged along a second direction perpendicular to the first direction among the plurality of fourth patterns 104B are electrically connected by the fourth conductive pattern D4. Therefore, the fourth patterns arranged along the second direction are electrically connected by the plurality of fourth conductive patterns D4, and may have the same electrical connection direction (electrical path) as the fourth pattern 104 shown in FIG. 16 or FIG. 19.

[0517] The fourth conductive pattern D4 is disposed to cross the connection pattern portion of the first pattern 101A disposed between two adjacent fourth patterns. The fourth conductive pattern D4 is disposed farthest from the control portion among the multiple fourth patterns 104B, and electrically connects the fourth patterns 104B arranged along the first direction. The fourth conductive pattern D4 may also be called a conductive bridge. Both ends of the fourth conductive pattern D4 are connected to vias connected to the fourth patterns 104B.

[0518] The first through fourth patterns 101A, 102A, 103B, and 104B may be disposed together in a first layer, which is a same layer, and the second through fourth conductive patterns D2, D3, and D4 may be disposed together in a second layer, which is a same layer, where the first and second layers are physically and electrically separated from each other.

[0519] FIG. 31 shows a modification of the sensor unit shown in FIG.

[0520] 31, in the sensor unit, the 1-1 pattern portions located at the first and / or second end portions of the plurality of 1-1 pattern portions have a shape that is open in a first direction (or a lateral direction), and therefore the 1-2 pattern portions located at the first and / or second end portions of the plurality of 1-2 pattern portions may be exposed to the outside.

[0521] The 1-2 pattern portions located at the second end of the plurality of 1-2 pattern portions are electrically connected through a connection pattern without a via. Here, the connection pattern may be a conductive trace. Compared to FIG. 30, the 1-2 pattern portions located at the second end of the plurality of 1-2 pattern portions are advantageously arranged in the same layer as the connection pattern without being connected through a via.

[0522] In addition, in the sensor unit, the 2-1 pattern portions located at the first and / or second side ends among the multiple 2-1 pattern portions have a shape that is open in the second direction (or vertical direction), and therefore the 2-2 pattern portions located at the first and / or second side ends among the multiple 2-2 pattern portions may be exposed to the outside.

[0523] The 2-2 pattern portions located at the second end of the plurality of 2-2 pattern portions are electrically connected through a connection pattern without a via. Here, the connection pattern may be a conductive trace. Compared to FIG. 30, the 2-2 pattern portions located at the second end of the plurality of 2-2 pattern portions are advantageously arranged in the same layer as the connection pattern without being connected through a via.

[0524] The sensor unit shown in FIG. 31 is also controlled by the controller 300 and can be driven in any one of a touch sensing mode, an antenna driving mode, and a stylus sensing mode. In particular, in the touch sensing mode, the controller 300 controls ATX1, ATX2, and ATX3 to apply touch driving signals, and can receive touch reception signals from ARX1, ARX2, and ARX3 to sense a touch position. In the antenna driving mode, the controller 300 can apply pen driving signals from DTX1, DTX2, and DTX3, or can apply pen driving signals from DRX1, DRX2, and DRX3. In the stylus sensing mode, the controller 300 can receive pen reception signals from ATX1, ATX2, and ATX3 and ARX1, ARX2, and ARX3 to sense a position of a stylus pen. Also, various combinations of Table 2 can be applied to the sensor unit 200' of FIG. 31. Therefore, the sensor unit of FIG. 31 can be driven in various ways by the control unit 300 in any one of a touch sensing mode, an antenna driving mode, and a stylus sensing mode.

[0525] FIG. 32 is a diagram showing another modified example of the sensor portion.

[0526] 32, the structures of the main pattern portions of first to fourth patterns 101', 102', 103', and 104' are different from those in FIG.

[0527] In FIG. 32, the outer contour of the second pattern 102' or the fourth pattern 104' is formed with a concave-convex structure, and the opening of the first pattern 101' or the fourth pattern 104' has a shape corresponding to the outer contour structure of the second pattern 102' or the fourth pattern 104'.

[0528] This structure has an advantage that the mutual capacitance Cm value between the first pattern 101' and the second pattern 102' in the same layer can be improved, and the mutual capacitance Cm value between the third pattern 103' and the fourth pattern 104' in the same layer can be improved. As the mutual capacitance Cm is improved, the voltage value output from the sensing circuit unit of the control unit 300 in the stylus sensing mode can be increased. Therefore, the stylus sensing sensitivity can be improved.

[0529] Here, the modification shown in FIG. 32 can be directly applied to the sensor units according to the various embodiments described above.

[0530] FIG. 33 shows yet another modified example of the sensor unit.

[0531] The sensor unit 100'' shown in FIG. 33 further includes a number of fifth patterns 105 and a number of sixth patterns 106, as compared with the sensor unit 100A shown in FIG.

[0532] The plurality of fifth patterns 105 are disposed in the same layer (second layer) as the plurality of first patterns 101, and are arranged in a plurality of rows along the first direction and the second direction.

[0533] Each of the fifth patterns 105 includes a shape that corresponds to and overlaps a part of a main pattern portion of the third pattern 103 arranged on another layer (1st layer). Also, the fifth pattern 105 is electrically connected to the fourth pattern 104 arranged on another layer (1st layer) through a via.

[0534] The fifth patterns 105 may form a mutual capacitance Cm in a vertical direction with the third patterns 103. Also, since the fifth pattern 105 is electrically connected to the fourth pattern 104 inside the third pattern 103, the third pattern 103 may form a mutual capacitance Cm not only with the fourth pattern 104 but also with the fifth pattern 105.

[0535] The plurality of sixth patterns 106 are disposed in the same layer (first layer) as the plurality of third patterns 103, and are arranged in a plurality of rows along the first and second directions.

[0536] Each sixth pattern 106 includes a shape that corresponds to and overlaps a part of a main pattern portion of a first pattern 101 disposed on another layer (second layer), and is electrically connected to a second pattern 102 disposed on another layer (second layer) through a via.

[0537] The sixth patterns 106 may form a mutual capacitance Cm in a vertical direction with the first patterns 101. In addition, since the sixth pattern 106 is electrically connected to the second pattern 102 inside the first pattern 101, the first pattern 101 may form a mutual capacitance Cm not only with the second pattern 102 but also with the sixth pattern 106.

[0538] 33 has an advantage that the first pattern 101 can form mutual capacitance in the vertical direction as well as the horizontal direction, and the third pattern 103 can form mutual capacitance in the vertical direction as well as the horizontal direction. Therefore, in the stylus sensing mode, the voltage value output from the sensing circuit unit of the control unit 300 can be increased, thereby improving the stylus sensing sensitivity.

[0539] Here, the modification shown in FIG. 33 can be directly applied to the sensor units according to the various embodiments described above.

[0540] FIG. 34 shows yet another modified example of the sensor unit.

[0541] Compared to sensor unit 100A shown in FIG. 24, sensor unit 100''' shown in FIG. 34 has a portion of second pattern 102' arranged on a different layer from the remaining portion. Specifically, second pattern 102' includes a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions, but the plurality of main pattern portions of second pattern 102' are arranged on a different layer from the plurality of connecting pattern portions of second pattern 102'.

[0542] A large number of main pattern portions of second pattern 102' are arranged in the same layer as third pattern 103 and fourth pattern 104, and a large number of connecting pattern portions of second pattern 102' are arranged in the same layer as first pattern 101, as in FIG.

[0543] Similar to the sensor unit 100A shown in FIG. 24, the sensor unit 100''' shown in FIG. 34 may be driven in a touch sensing mode, an antenna driving mode, or a stylus pen sensing mode by the control unit 300. Also, various combinations of Table 2 can be applied to the sensor unit 100''' of FIG. 34. Therefore, the sensor unit 100''' of FIG. 34 can be driven in any one of the touch sensing mode, the antenna driving mode, and the stylus sensing mode in various manners by the control unit 300.

[0544] FIG. 35 shows yet another modified example of the sensor unit.

[0545] Compared to sensor unit 100''' shown in FIG. 34, sensor unit 100'''' shown in FIG. 35 has a part of fourth pattern 104' arranged on a different layer from the remaining part. Specifically, fourth pattern 104' includes a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions of the plurality of main pattern portions, and the plurality of main pattern portions of fourth pattern 104' are arranged on a different layer from the plurality of connecting pattern portions of fourth pattern 104'. The plurality of main pattern portions of fourth pattern 104' are arranged on the same layer as first pattern 101, and the plurality of connecting pattern portions of fourth pattern 104' are arranged on the same layer as the plurality of main pattern portions of second pattern 102' and third pattern 103.

[0546] 35, first pattern 101, a number of connecting pattern portions of second pattern 102', and a number of main pattern portions of fourth pattern 104' are arranged on a first layer, and third pattern 103, a number of connecting pattern portions of fourth pattern 104', and a number of main pattern portions of second pattern 102' are arranged on a second layer. Here, the first layer and the second layer are different layers, and the positional relationship may be such that one is arranged on top of the other.

[0547] 24, the sensor unit 100'''' shown in FIG. 35 may be driven in a touch sensing mode, an antenna driving mode, or a stylus pen sensing mode by the control unit 300. Also, various combinations of Table 2 can be applied to the sensor unit 100'''' of FIG. 35. Therefore, the sensor unit 100'''' of FIG. 35 can be driven in any one of the touch sensing mode, the antenna driving mode, and the stylus sensing mode in various manners by the control unit 300.

[0548] FIG. 36 shows yet another modified example of the sensor unit.

[0549] The sensor unit 100'''' shown in FIG. 36 is a modified version of the sensor unit 100'''' shown in FIG. 35. Compared to the sensor unit 100'''' shown in FIG. 35, the sensor unit 100'''''' shown in FIG. 36 differs in the second pattern 102'' and the fourth pattern 104''.

[0550] Specifically, the second pattern 102'' includes a plurality of main pattern portions 102a'' and a plurality of connecting pattern portions 102b', and the size of the main pattern portion 102a'' is larger than that of the main pattern portion of the second pattern 102' of the sensor unit 100'''' shown in FIG. 35. The size and shape of the main pattern portion 102a'' may correspond to those of the main pattern portion of the first pattern 101.

[0551] In addition, the fourth pattern 104'' includes a plurality of main pattern portions 104a'' and a plurality of connecting pattern portions 104b', with the size of the main pattern portion 104a'' being larger than that of the fourth pattern 104' of the sensor unit 100'''' shown in FIG. 35. The size and shape of the main pattern portion 104a'' may correspond to those of the main pattern portion of the third pattern 103.

[0552] Since the main pattern portion 102a'' of the second pattern 102'' is larger than the main pattern portion of the second pattern 102' of Fig. 35, the corresponding area with the first pattern 101 is increased, thereby further improving the mutual capacitance Cm between the second pattern 102'' and the first pattern 101. Therefore, in the stylus sensing mode, the stylus sensing sensitivity can be further improved.

[0553] In addition, since the main pattern portion 104a'' of the fourth pattern 104'' is larger than the main pattern portion of the fourth pattern 104' of Fig. 35, the corresponding area with the third pattern 103 is increased, and the mutual capacitance Cm between the fourth pattern 104'' and the third pattern 104 can be further improved. Therefore, in the stylus sensing mode, the stylus sensing sensitivity can be further improved.

[0554] FIG. 37 is a diagram showing still another modified example of the sensor portion.

[0555] Compared to the sensor unit 100A shown in FIG. 24, the sensor unit 100'''''' shown in FIG. 37 has the other ends (second side ends) of the multiple second patterns 102 and the other ends (second side ends) of the multiple fourth patterns 104 electrically connected to each other.

[0556] In this configuration, when the sensor unit 100' is operated in a stylus sensing mode, one fourth pattern 104 is electrically connected to not only another fourth pattern but also a number of second patterns 102, which has the advantage of further reducing impedance.

[0557] Similar to the sensor unit 100A shown in FIG. 24, the sensor unit 100'''''' shown in FIG. 37 may be driven in a touch sensing mode, an antenna driving mode, or a stylus pen sensing mode by the control unit 300. Also, various combinations of Table 2 can be applied to the sensor unit 100'''''' shown in FIG. 37. Therefore, the sensor unit 100'''' shown in FIG. 37 can be driven in any one of the touch sensing mode, the antenna driving mode, and the stylus sensing mode in various manners by the control unit 300.

[0558] FIG. 38 shows yet another modified example of the sensor unit.

[0559] The sensor unit 100''''''' shown in Fig. 38 differs from the sensor unit 100A shown in Fig. 24 in that it has a second pattern 102' and a fourth pattern 104', further includes a plurality of fifth patterns 105' and a plurality of sixth patterns 106', and further includes a capacitor (cap) electrically connected to the fifth pattern 105' and the sixth pattern 106'. As the remaining configuration is the same, the other parts will be described in detail below.

[0560] The second pattern 102' may be a bar pattern disposed inside the first pattern 101 and extending in a second direction. Here, the second pattern 102' may have a certain width. The second pattern 102' is disposed in the same layer as the first pattern 101.

[0561] The fourth pattern 104' may be a bar pattern disposed inside the third pattern 103 and extending in a first direction. Here, the fourth pattern 104' may have a certain width. The fourth pattern 104' is disposed in the same layer (1st layer) as the third pattern 103.

[0562] The plurality of fifth patterns 105' are disposed in the same layer (second layer) as the plurality of first patterns 101, and are arranged in a plurality of rows along the first direction and the second direction. The plurality of fifth patterns 105' may be arranged between the plurality of first patterns 101.

[0563] Each of the fifth patterns 105' includes a shape that corresponds to and overlaps a main pattern portion of the third pattern 103 disposed on another layer (first layer). Also, the fifth pattern 105' is electrically connected to the fourth pattern 104' disposed on another layer (first layer) through a via.

[0564] The fifth pattern 105' electrically connected to one of the fourth patterns 104' among the plurality of fifth patterns 105' is arranged along the second direction. Here, a predetermined capacitor (cap) is connected to the fifth pattern 105' arranged at the other edge among the fifth patterns 105' arranged along the second direction. And, the capacitor (cap) may be grounded. Here, the fifth pattern 105' arranged at the other edge among the fifth patterns 105' arranged along the second direction means a pattern electrically connected farthest from the control unit 300 shown in FIG. 24. Although not shown in a separate drawing, the capacitor (cap) may be connected between the fifth pattern 105' and the ELVSS of the display panel (not shown). Also, the capacitor (cap) may have one end connected to the fifth pattern 105' and the other end connected to another layer (1st layer) in which the third pattern 103, the fourth pattern 104', and the sixth pattern 106' are arranged.

[0565] The fifth patterns 105' may form a mutual capacitance Cm in a vertical direction with the third patterns 103. Also, since the fifth pattern 105' is electrically connected to the fourth pattern 104' inside the third pattern 103, the third pattern 103 may form a mutual capacitance Cm not only with the fourth pattern 104' but also with the fifth pattern 105'.

[0566] The sixth patterns 106′ are disposed in the same layer as the third patterns 103, and are arranged in a plurality of layers along the first and second directions. The sixth patterns 106′ may be arranged in a plurality of layers between the third patterns 103.

[0567] Each sixth pattern 106' includes a shape that corresponds to and overlaps a main pattern portion of a first pattern 101 disposed on another layer (second layer), and is electrically connected to a second pattern 102' disposed on another layer (second layer) through a via.

[0568] The sixth pattern 106' electrically connected to one of the second patterns 102' among the sixth patterns 106' is arranged along the first direction. Here, a certain capacitor (cap) is connected to the sixth pattern 106' arranged at the other edge among the sixth patterns 106' arranged along the first direction. And, the capacitor (cap) may be grounded. Here, the sixth pattern 106' arranged at the other edge among the sixth patterns 106' arranged along the first direction means a pattern electrically connected farthest from the control unit 300 shown in FIG. 24. Although not shown in a separate drawing, the capacitor (cap) may be connected between the sixth pattern 106' and the ELVSS of the display panel (not shown). Also, the capacitor (cap) may have one end connected to the sixth pattern 106' and the other end connected to another layer (2nd layer) in which the first pattern 101, the second pattern 102', and the fifth pattern 105' are arranged.

[0569] The sixth patterns 106' may form a mutual capacitance Cm in a vertical direction with the first patterns 101. Also, since the sixth pattern 106' is electrically connected to the second pattern 102' inside the first pattern 101, the first pattern 101 may form a mutual capacitance Cm not only with the second pattern 102' but also with the sixth pattern 106'.

[0570] 38 has an advantage that mutual capacitance can be formed not only in the horizontal direction but also in the vertical direction of the first pattern 101, and mutual capacitance can be formed not only in the horizontal direction but also in the vertical direction of the third pattern 103. Therefore, in the stylus sensing mode, the voltage value output from the sensing circuit unit of the control unit 300 can be increased, thereby improving the stylus sensing sensitivity.

[0571] Furthermore, unlike the second pattern 102 and the fourth pattern 104 of the sensor unit 100A in Figure 24, the second pattern 102' and the fourth pattern 104' do not have a diamond-shaped main pattern portion, so when a display panel is positioned under the sensor unit 100'''''''', there is an advantage that visibility can be further improved compared to the sensor unit 100A in Figure 24.

[0572] 24, the sensor unit 100'''''' shown in FIG. 39 may be driven in a touch sensing mode, an antenna driving mode, or a stylus pen sensing mode by the control unit 300. Also, various combinations of Table 2 can be applied to the sensor unit 100'''''''' shown in FIG. 39. Therefore, the sensor unit 100'''''''' shown in FIG. 39 can be driven in any one of the touch sensing mode, the antenna driving mode, and the stylus sensing mode in various manners by the control unit 300.

[0573] Meanwhile, although not shown in a separate drawing, without the fifth and sixth patterns 105' and 106', a capacitor (cap) may be electrically connected to the other ends of the second and fourth patterns 102 and 104. Furthermore, in the sensor units according to the various embodiments described above, the other ends of the second and fourth patterns may not be connected to each other, but a capacitor may be connected to each other end.

[0574] FIG. 39 shows yet another modified example of the sensor unit.

[0575] In the case of the sensor unit 100A of Fig. 24, when the stylus pen 10 is positioned on the right edge (or the left edge) of the sensor unit 100A, it may be difficult for the stylus pen 10 to provide a sufficient magnetic field signal, and a problem may occur in which the signal emitted from the stylus pen 10 cannot be large enough. To solve this problem, the sensor unit 100'''''''' shown in Fig. 39 further includes a first trace t1 and a second trace t2 in addition to the sensor unit 100A shown in Fig. 24.

[0576] The first trace t1 and the second trace t2 are directly connected to the conductive trace t0 that electrically connects the other ends of the multiple second patterns 102, and are arranged in a non-active area that is outside the active area tp (or touch area) of the touch input device. Here, at least a part of the conductive trace t0 may also be arranged outside the active area tp. The active area tp means an area that can be directly touched by an object, such as a finger or a stylus pen 10, and a non-active area is arranged around the active area tp. The non-active area may be, for example, a bezel area.

[0577] Specifically, the first trace t1 may be disposed in a non-active area outside the active area tp, one end of which may be directly connected to the conductive trace t0, and the other end of which may be connected to a driving circuit unit of the control unit 300 via a switch sw in any one of a touch driving mode, a touch sensing mode, an antenna driving mode, and a stylus sensing mode.

[0578] The second trace t2 is disposed in a non-active area outside the active area tp, and one end may be directly connected to the conductive trace t0 and the other end may be connected to the driving circuit section of the control section 300 via a switch sw in the antenna driving mode.

[0579] The first trace t1 may be disposed in a non-active area surrounding one of the left and right sides of the active area tp, and the second trace t2 may be disposed in a non-active area surrounding the other side of the active area tp.

[0580] The first trace t1 and the second trace t2 can provide a sufficient magnetic field signal to the stylus pen 10 even if the stylus pen 10 is located at one edge of the active area tp when the sensor unit 100'''''''' is driven in the same antenna driving mode as in FIG. 25. Therefore, in the touch input device including the sensor unit 100'''''''' shown in FIG. 39, the stylus pen 10 can receive a sufficient magnetic field signal and emit a sufficient signal regardless of where the stylus pen 10 is located in the active area tp.

[0581] Each of the first and second traces t1 and t2 of the sensor unit 100'''''''' shown in FIG. 39 is responsible for one channel in FIG. 25, and the driving method as in FIG. 25 can be applied as is.

[0582] 24, the sensor unit 100'''''''' shown in FIG. 39 may be driven in a touch sensing mode, an antenna driving mode, or a stylus pen sensing mode by the control unit 300. Also, various combinations of Table 2 can be applied to the sensor unit 100'''''''' shown in FIG. 39. Therefore, the sensor unit 100'''''''' shown in FIG. 39 can be driven in any one of the touch sensing mode, the antenna driving mode, and the stylus sensing mode in various manners by the control unit 300.

[0583] FIG. 40 is a diagram illustrating a first modified example of the fifth pattern 105 shown in FIG.

[0584] Referring to FIG. 40, the fifth pattern 105' is disposed on a layer different from the layer on which the third pattern 103 and the fourth pattern 104 are disposed.

[0585] The fifth pattern 105' may have a shape corresponding to the third pattern 103. For example, the fifth pattern 105' may have a diamond shape with a diamond-shaped opening therein.

[0586] A portion of the fifth pattern 105' may be arranged so as to overlap with the third pattern 103 in the vertical direction, and another portion may be arranged so as to overlap with the fourth pattern 104 in the vertical direction. For example, an outer edge portion of the fifth pattern 105' may be overlapped with an inner edge portion of the third pattern 103 arranged in another layer. An inner edge portion of the fifth pattern 105' may be overlapped with an outer edge portion of the fourth pattern 104 arranged in another layer.

[0587] The fifth pattern 105′ is electrically connected to the fourth pattern 104 arranged in another layer through conductive vias v. Here, the number of vias v may be multiple and may be arranged on the outer edge portion of the fourth pattern 104.

[0588] The fifth pattern 105' may form a mutual capacitance Cm in the vertical direction with the third pattern 103 disposed in another layer. Also, since the fifth pattern 105' is electrically connected to the fourth pattern 104 inside the third pattern 103 through the via v, the third pattern 103 may form a mutual capacitance Cc_tx not only with the fourth pattern 104 disposed in the same layer, but also with the fifth pattern 105' disposed in another layer.

[0589] Although not shown in a separate drawing, the sixth pattern 106 shown in FIG. 33 may have the same shape as the fifth pattern 105' shown in FIG. 40. In this case, the outer edge of the sixth pattern (not shown) may overlap with the inner edge of the first pattern 101 arranged in another layer, and the inner edge of the sixth pattern (not shown) may overlap with the outer edge of the second pattern 102 arranged in another layer. The sixth pattern (not shown) may be electrically connected to the second pattern 102 arranged in another layer through a conductive via. Similarly, such a sixth pattern (not shown) may also form a mutual capacitance in a vertical direction with the first pattern 101, and since the sixth pattern (not shown) is electrically connected to the second pattern 102 inside the first pattern 101, the first pattern 101 may eventually form a mutual capacitance Cm not only with the second pattern 102 but also with the sixth pattern (not shown).

[0590] 40, the sensor unit including the modified fifth pattern 105' shown in Fig. 40 can form mutual capacitance not only in the horizontal direction but also in the vertical direction of the third pattern 103, and the sensor unit including the modified sixth pattern (not shown) can also form mutual capacitance not only in the horizontal direction but also in the vertical direction of the first pattern 101. Therefore, the voltage value output from the sensing circuit unit of the control unit in the stylus sensing mode can be increased, thereby improving the stylus sensing sensitivity.

[0591] FIG. 41 is a modification of FIG.

[0592] FIG. 40 shows that the fifth pattern 105' is disposed below the third and fourth patterns 103, 104, whereas FIG. 41 shows that the fifth pattern 105' is disposed above the third and fourth patterns 103, 104.

[0593] The structure of the fifth pattern 105' shown in FIGS. 40 and 41 can be applied to the sensor units according to the various embodiments described above.

[0594] FIG. 42 is a diagram illustrating a modified example of the fifth pattern 105' shown in FIG.

[0595] 42, a fifth pattern 105'' has the same shape and position as the fifth pattern 105' shown in FIG. 40. The fifth pattern 105'' differs from the fifth pattern 105' shown in FIG. 40 in that the fifth pattern 105'' is electrically connected to the third pattern 103 arranged in another layer through a conductive via v. The via v is arranged at the inner edge portion of the third pattern 103.

[0596] Since the fifth pattern 105'' is electrically connected to the third pattern 103 arranged in another layer, the fourth pattern 104 can form a mutual capacitance Cc_Tx with the fifth pattern 105'' in the vertical direction.

[0597] The sensor unit including the modified fifth pattern 105'' shown in FIG. 42 also has an advantage in that mutual capacitance can be formed not only in the horizontal direction but also in the vertical direction.

[0598] FIG. 43 is a modification of FIG.

[0599] FIG. 42 shows that the fifth pattern 105'' is disposed below the third and fourth patterns 103, 104, whereas FIG. 43 shows that the fifth pattern 105'' is disposed above the third and fourth patterns 103, 104.

[0600] The structure of the fifth pattern 105' shown in FIGS. 42 and 43 can be applied to the sensor units according to the various embodiments described above.

[0601] 44 and 45 are diagrams for explaining modified examples of the third pattern 103 and the fourth pattern 104 in the sensor unit as shown in FIG. 34 or FIG.

[0602] 44 and 45, the third pattern 103 and the fourth pattern 104 according to the modified example are arranged on different layers, and a part of the third pattern 103 and a part of the fourth pattern 104 are arranged to overlap in the up-down direction (or vertical direction). For example, the inner edge part of the third pattern 103 may be arranged to overlap in the vertical direction with the outer edge part of the fourth pattern 104. In FIG. 44, the third pattern 103 is arranged above the fourth pattern 104, and in FIG. 45, the third pattern 103 is arranged below the fourth pattern 104.

[0603] The sensor unit including the third and fourth patterns 103 and 104 shown in Figures 44 and 45 may form a mutual capacitance Cc_Tx in the vertical direction rather than the horizontal direction. Although not shown in a separate drawing, the first and second patterns 101 and 102 shown in Figures 34 and 35 may also have the structure shown in Figures 44 and 45.

[0604] The modified structures shown in FIGS. 44 and 45 can be applied to the sensor units according to the various embodiments described above.

[0605] FIG. 46 is a diagram illustrating a portion of a touch input device according to yet another embodiment.

[0606] A touch unit (or touch device) 260 included in a touch input device according to another embodiment includes a touch panel 261 and a touch controller 262 that controls the touch panel 261. The touch controller 262 may include a first driving / receiving unit 2620 and a second driving / receiving unit 2622 that transmit and receive signals to and from the touch panel 261, and a control unit 2624.

[0607] The touch panel 261 may include a plurality of first touch electrodes 111-1 to 111-m for detecting touch coordinates in a first direction and a plurality of second touch electrodes 121-1 to 121-n for detecting touch coordinates in a second direction intersecting the first direction. For example, the plurality of first touch electrodes 111-1 to 111-m may have a shape extending in the second direction, and the plurality of second touch electrodes 121-1 to 121-n may have a shape extending in the first direction. In the touch panel 261, the plurality of first touch electrodes 111-1 to 111-m may be arranged along the first direction, and the plurality of second touch electrodes 121-1 to 121-n may be arranged along the second direction.

[0608] The first driving / receiving unit 2620 may apply driving signals to the plurality of first touch electrodes 111-1 to 111-m, and the second driving / receiving unit 2622 may receive sensing signals from the plurality of second touch electrodes 121-1 to 121-n.

[0609] Although it has been described above that touch panel 261 is implemented using a mutual capacitance method, touch panel 261 may also be implemented using a self-capacitance method. It would be easy for an ordinary engineer to appropriately modify touch electrodes 111-1 to 111-m, 121-1 to 121-n, first driving / receiving unit 2620, and second driving / receiving unit 2622 in the mutual capacitance method, add new components, or omit some components to modify them to suit the self-capacitance method.

[0610] That is, the touch panel 261 may include a plurality of self-capacitance type touch electrodes (or touch patterns), in which case the touch electrodes (or touch patterns) may be arranged in a dot pattern or may be arranged in a pattern extending in one direction as described above.

[0611] Next, with reference to FIG. 47, the electrodes (or patterns) and traces will be described.

[0612] FIG. 47 is a diagram illustrating an example of an arrangement of electrodes (or patterns) and traces of a touch unit according to an embodiment.

[0613] The sensor unit of the touch unit may include an antenna to which the touch electrodes 111 and 121 and dummy electrodes are connected. For example, a plurality of dummy electrodes 121D may be located in the same layer as the touch electrodes 111 and 121, and some of the plurality of dummy electrodes 121D may be connected by a bridge 121b. The bridge 121b may be connected to the pads 113a and 113b via the trace 112.

[0614] The touch controller 262 can apply a driving signal to the antenna 121a to resonate the stylus pen 10. The driving signal can include a signal (e.g., a sine wave, a square wave, etc.) having a frequency corresponding to the resonant frequency of the resonant circuit unit 12, and can be an AC voltage or an AC current having a predetermined frequency. The frequency and magnitude of such a driving signal can be changed under the control of the control unit 2624. Specifically, the touch controller 262 can apply a driving signal to one of two adjacent bridges 121b and ground the other one.

[0615] The touch electrodes 111, 121 are connected to the pads 113a, 113b via traces 112, 122a, 122b in the peripheral area located at the edge of the touch area. The first touch electrodes 111-1, 111-2, 111-3, ... are connected to the respective traces 112, and the second touch electrodes 121-1, 121-2, 121-3, ... are connected to the respective traces 122a, 122b.

[0616] The touch electrodes 111, 121 and the traces 112, 122a, 122b may be formed in the same layer. The touch electrodes 111, 121 and the traces 112, 122a, 122b may be formed of a conductive material exhibiting high transmittance and low impedance, such as a metal mesh or a silver nanowire. However, the touch electrodes 111, 121 and the traces 112, 122a, 122b may be located in different layers and may be made of, but is not limited to, ITO or graphene.

[0617] The pads 113a, 113b are connected to the touch controller 262 to transmit signals (eg, drive signals) of the touch controller 262 to the touch electrodes 111, 121 and transmit signals (eg, sense signals) from the touch electrodes 111, 121 to the touch controller 262.

[0618] FIG. 48 is a diagram illustrating another example of an arrangement of electrodes (or patterns) and traces of a touch unit according to an embodiment.

[0619] Similar to FIG. 47, touch electrodes 111, 121 are coupled to pads 113a, 113b via traces 112, 122a, 122b in the peripheral region located on the edge of the touch area.

[0620] One touch electrode has two signal input terminals, and the two signal input terminals are connected to two traces correspondingly. For example, the second touch electrode 121-9 is a "U" shaped electrode having a first signal input terminal TE1 located at the top and a second signal input terminal TE2 located at the bottom.

[0621] One of the two signal input terminals may be connected to ground or to the driver / receiver 2620 via a switch. For example, the first signal input terminal TE1 is connected to the driver / receiver 2620, and the second signal input terminal TE2 is connected to a switch SW. The switch SW connects the second signal input terminal TE2 to ground or to the driver / receiver 2620.

[0622] The touch controller 262 may apply a driving signal by connecting one signal input terminal to ground in order to resonate the stylus pen 10. The touch controller 262 may simultaneously receive sensing signals from two signal input terminals. In addition, when driving for a general finger touch, the touch controller 262 may apply driving signals of the same phase to the two signal input terminals.

[0623] In the above description, one signal input terminal is connected to ground to apply a driving signal, but the touch controller 262 may apply driving signals of opposite phases to two signal input terminals.

[0624] Next, with reference to FIG. 49, signals induced in the touch electrodes 111 and 121 and the traces 112, 122a, and 122b when the stylus pen 10a or 10b is positioned on the touch screen 20 will be described.

[0625] FIG. 49 illustrates a case where a stylus pen is positioned on a sensor unit of a touch unit according to an embodiment.

[0626] As shown in FIG. 49, the inductor portions 14 of the stylus pens 10a and 10b are located on the touch screen 20 between the first touch electrodes 111-5 and 111-6 and between the second touch electrodes 121-8 and 121-9.

[0627] The stylus pens 10a and 10b resonate by a driving signal applied to the antenna 121a or the touch electrodes 111 and 121 having two signal input terminals. The resonance causes a current Ir to flow through the coil of the inductor unit 14. This current Ir induces an eddy current in the touch electrodes 111 and 121 and the traces 112, 122a and 122b. This eddy current is formed in the opposite direction to the current Ir.

[0628] Therefore, currents Ia1 and Ia2 are formed in the -Y-axis direction in first touch electrodes 111-4 and 111-5 located on the left side (-X-axis direction) of inductor unit 14, and currents Ia3 and Ia4 are formed in the +Y-axis direction in first touch electrodes 111-6 and 111-7 located on the right side (+X-axis direction) of inductor unit 14. That is, the direction of the current induced in first touch electrodes 111-1 to 111-5 and the direction of the current induced in first touch electrodes 111-6 to 111-10 are opposite to each other.

[0629] Currents Ib1 and Ib2 are formed in the -Y-axis direction in second touch electrodes 121-7 and 121-8 located above inductor unit 14 (in the +Y-axis direction), and currents Ib3 and Ib4 are formed in the +X-axis direction in second touch electrodes 121-9 and 121-10 located below inductor unit 14 (in the -Y-axis direction). In other words, the direction of the current induced in second touch electrodes 121-1 to 121-8 and the direction of the current induced in second touch electrodes 121-9 to 121-16 are opposite to each other.

[0630] Currents Ic1 and Ic2 are generated in the -Y-axis direction in trace 122a located on the left side of inductor section 14, and currents Ic3 and Ic4 are generated in the +Y-axis direction in trace 122b located on the right side of inductor section 14. In other words, the direction of the current induced in trace 122a and the direction of the current induced in trace 122b are opposite to each other.

[0631] In addition, the direction of the current induced in the second touch electrodes 121-1 to 121-8 is the same as the direction of the current induced in the trace 122a connected to the second touch electrodes 121-1 to 121-8. The direction of the current induced in the second touch electrodes 121-9 to 121-16 is opposite to the direction of the current induced in the trace 122b connected to the second touch electrodes 121-9 to 121-16.

[0632] When the direction of the current is examined in detail with respect to the pads 113a and 113b, at a certain point in time, the current may be drawn from the second touch electrodes 121-1 to 121-8 to the pad 113a. Depending on the magnitude of the current induced in the second touch electrodes 121-9 to 121-16 and the trace 122b connected thereto, the current may be drawn from the pad 113b to the second touch electrodes 121-9 to 121-16, or from the second touch electrodes 121-9 to 121-16 to the pad 113b. However, in FIG. 49, the inductor unit 14 of the stylus pen 10 is located closer to the second touch electrodes 121-9 to 121-16 than the trace 122b, so that the current may be drawn from the second touch electrodes 121-9 to 121-16 to the pad 113b.

[0633] Separately, in the case of the stylus pen 10b of FIG. 4(b), the electric field signal E is output to the touch electrodes 111 and 121, so that a sensing signal is received according to the electric field signal E applied to the first touch electrodes 111-5 and 111-6 and the second touch electrodes 121-8 and 121-9.

[0634] In this regard, a method for measuring a signal in the touch unit 260 will be described with reference to FIG.

[0635] FIG. 50 is a graph showing a method of measuring a signal of a touch portion according to the embodiment shown in FIGS.

[0636] FIG. 50 shows a voltage change V8 in the second touch electrode 121-8 and a voltage change V9 in the second touch electrode 121-9 in which currents are induced in opposite directions.

[0637] The first driver / receiver 2620 and the second driver / receiver 2622 sample the voltage change corresponding to the frequency of the driving signal to measure the sensing signal according to the voltage change. At least one sampling point (I, Q, IB, QB) may be any timing that can be periodically set in relation to the frequency of the driving signal. For example, the period between I and I is equal to half the period of the driving signal.

[0638] The sense signal is the difference between the voltage measured at time I and the voltage measured at time IB. TIFF0007599741000008.tif10138, and / or the difference between the voltage measured at time Q and the voltage measured at time QB Contains TIFF0007599741000009.tif10134.

[0639] Next, the sensing signal by the stylus pen 10b in FIG. 4(b) will be described with reference to FIGS.

[0640] 51 and 52 are graphs illustrating sensing signals from a stylus pen according to an embodiment.

[0641] FIG. 51 is a graph of sensing signals received from first touch electrodes 111-1 to 111-10.

[0642] 51, the currents are induced in opposite directions between the first touch electrodes 111-1 to 111-5 and the first touch electrodes 111-6 to 111-10, so that the sense signal AB1 measured in the first touch electrodes 111-5 and 111-6 has the opposite sign. Also, since a larger current is induced closer to the inductor unit 14, the magnitude of the current induced in the first touch electrodes 111-5 and 111-6 is larger than the magnitude of the current induced in the other first touch electrodes 111-1 to 111-4 and 111-7 to 111-10.

[0643] The stylus pen 10b outputs an electric field signal E to the first touch electrodes 111-5 and 111-6 via the conductive tip 11b, and thus a sensing signal AE1 is received.

[0644] The sensing signal AC1 received by the first driving / receiving unit 2620 has a form in which the sensing signal AB1 and the sensing signal AE1 are combined. In this case, the controller 2624 may determine the touch point between the two first touch electrodes 111-5 and 111-6 where the difference in magnitude of the sensing signal AC1 is the largest, and may calculate the exact touch point using interpolation, etc.

[0645] FIG. 52 is a graph of the sensing signals received from the second touch electrodes 121-1 to 121-16.

[0646] 52, the currents are induced in opposite directions between the second touch electrodes 121-1 to 121-8 and the second touch electrodes 121-9 to 121-16, so that the sense signal AB2 measured in the second touch electrodes 121-8 and 121-9 has an opposite sign. Also, since a larger current is induced closer to the inductor unit 14, the magnitude of the current induced in the second touch electrodes 121-8 and 121-9 is larger than the magnitude of the current induced in the other second touch electrodes 121-1 to 121-7 and 121-10 to 121-16.

[0647] The stylus pen 10b outputs an electric field signal E to the second touch electrodes 121-8 and 121-9 via the conductive tip 11b, and thus a sensing signal AE2 is received.

[0648] The sensing signal AC2 received by the second driving / receiving unit 2622 has a form in which the sensing signal AB2 and the sensing signal AE2 are combined. In this case, the controller 2624 may determine the touch point between the two second touch electrodes 121-8 and 121-9 where the difference in magnitude of the sensing signal AC2 is the largest, and may calculate the exact touch point using interpolation, etc.

[0649] Next, a detection signal by the stylus pen 10a in FIG. 4(a) will be described with reference to FIGS.

[0650] 53 and 54 are graphs showing sensing signals by a stylus pen according to another embodiment.

[0651] FIG. 53 is a graph of the sensing signals received from the first touch electrodes 111-1 to 111-10.

[0652] 53, since the current directions between the first touch electrodes 111-1 to 111-5 and the first touch electrodes 111-6 to 111-10 are opposite to each other, the sensing signal AB3 received by the first driving / receiving unit 2620 has opposite signs between the first touch electrodes 111-5 and 111-6. Also, since a larger current is induced closer to the inductor unit 14, the magnitude of the current induced in the first touch electrodes 111-5 and 111-6 is larger than the magnitude of the current induced in the other first touch electrodes 111-1 to 111-4 and 111-7 to 111-10.

[0653] In this case, the controller 2624 may determine the touch point between the two first touch electrodes 111-5 and 111-6, where the signs of the sensing signal AB3 are opposite and the magnitudes of the respective signals are large, and the accurate touch point may be calculated using interpolation or the like. In this case, the controller 2624 may determine the touch point to be an area having a maximum value by differentiating the sensing signal AB3. Alternatively, the controller 2624 may receive differential signals from two adjacent first touch electrodes among the first touch electrodes 111-1 to 111-10, and determine the touch point of the stylus pen based on the maximum or minimum value of the received differential signal. For example, the controller 2624 may determine the touch point to be an area having a maximum or minimum value of the received differential signal. Here, the two adjacent first touch electrodes may be two first touch electrodes (111-1 and 111-2 or 111-2 and 111-3) adjacent to each other. Alternatively, the two adjacent first touch electrodes may be two first touch electrodes (111-1 and 111-3 or 111-2 and 111-4) that are not adjacent to each other, and at least one other first touch electrode (111-2 or 111-3) may be disposed between the two first touch electrodes (111-1 and 111-3 or 111-2 and 111-4).

[0654] FIG. 54 is a graph of the sensing signals received from the second touch electrodes 121-1 to 121-16.

[0655] 54, since the current directions between the second touch electrodes 121-1 to 121-8 and the second touch electrodes 121-9 to 121-16 are opposite to each other, the sensing signal AB4 received by the second driving / receiving unit 2622 has opposite signs between the second touch electrodes 121-8 and 121-9. Also, since a larger current is induced closer to the inductor unit 14, the magnitude of the current induced in the second touch electrodes 121-8 and 121-9 is larger than the magnitude of the current induced in the other second touch electrodes 121-1 to 121-7 and 121-10 to 121-16.

[0656] In this case, the controller 2624 may determine the touch point between two second touch electrodes 121-8 and 121-9 where the signs of the sensing signal AB4 are opposite and the magnitudes of the respective signals are large, and the exact touch point may be calculated using interpolation or the like. In this case, the controller 2624 may determine the touch point to be an area having a maximum value by differentiating the sensing signal AB4. Alternatively, the controller 2624 may receive differential signals from two adjacent second touch electrodes among the second touch electrodes 121-1 to 121-8, and determine the touch point of the stylus pen based on the maximum or minimum value of the received differential signal. For example, the controller 2624 may determine the touch point to be an area having a maximum or minimum value of the received differential signal. Here, the two adjacent second touch electrodes may be two second touch electrodes (121-1 and 121-2 or 121-2 and 121-3) adjacent to each other. Alternatively, the two adjacent second touch electrodes may be two second touch electrodes (121-1 and 121-3 or 121-2 and 121-4) that are not adjacent to each other, and at least one other second touch electrode (121-2 or 121-3) may be disposed between the two second touch electrodes (121-1 and 121-3 or 121-2 and 121-4).

[0657] Next, with reference to FIG. 55, signals induced in the touch electrodes 111 and 121 and the traces 112, 122a, and 122b when the stylus pen 10a or 10b is positioned on the touch screen 20 will be described.

[0658] FIG. 55 illustrates a case where a stylus pen is placed on a sensor unit of a touch unit according to an embodiment.

[0659] As shown in FIG. 55, the inductor portions 14 of the stylus pens 10a and 10b are located on the touch screen 20 between the first touch electrodes 111-2 and 111-3 and between the second touch electrodes 121-2 and 121-3.

[0660] The stylus pens 10a and 10b resonate by a driving signal applied to the antenna 121a or the touch electrodes 111 and 121 having two signal input terminals. The resonance causes a current Ir to flow through the coil of the inductor unit 14. This current Ir induces an eddy current in the touch electrodes 111 and 121 and the traces 112, 122a and 122b. This eddy current is formed in the opposite direction to the current Ir.

[0661] Therefore, currents Ia1 and Ia2 are formed in the -Y-axis direction in first touch electrodes 111-1 and 111-2 located on the left side (-X-axis direction) of inductor unit 14, and currents Ia3 and Ia4 are formed in the +Y-axis direction in first touch electrodes 111-3 and 111-4 located on the right side (+X-axis direction) of inductor unit 14. That is, the direction of the current induced in first touch electrodes 111-1 and 111-2 is opposite to the direction of the current induced in first touch electrodes 111-3 to 111-10.

[0662] Currents Ib1 and Ib2 are formed in the -X-axis direction in second touch electrodes 121-1 and 121-2 located above inductor unit 14 (in the +Y-axis direction), and currents Ib3, Ib4, Ib5, and Ib6 are formed in the +X-axis direction in second touch electrodes 121-3, 121-4, 121-9, and 121-10 located below inductor unit 14 (in the -Y-axis direction). That is, the direction of the current induced in second touch electrodes 121-1 and 121-2 is opposite to the direction of the current induced in second touch electrodes 121-3 to 121-16.

[0663] Currents Ic1 to Ic4 are generated in the -Y-axis direction in trace 122a located on the left side of inductor section 14, and currents Ic5 and Ic6 are generated in the +Y-axis direction in trace 122b located on the right side of inductor section 14. That is, the direction of the current induced in trace 122a and the direction of the current induced in trace 122b are opposite to each other.

[0664] Furthermore, the direction of the current induced in the second touch electrodes 121-1 and 121-2 is the same as the direction of the current induced in the trace 122a connected to the second touch electrodes 121-1 and 121-2. The direction of the current induced in the second touch electrodes 121-3 to 121-8 is opposite to the direction of the current induced in the trace 122a connected to the second touch electrodes 121-3 to 121-8. The direction of the current induced in the second touch electrodes 121-9 to 121-16 is opposite to the direction of the current induced in the trace 122b connected to the second touch electrodes 121-9 to 121-16.

[0665] At a certain point in time, when the direction of the current is examined in detail with respect to the pads 113a and 113b, the current may be drawn from the second touch electrodes 121-1 and 121-2 to the pad 113a. Depending on the magnitude of the current induced in the second touch electrodes 121-3 to 121-16 and the traces 122a and 122b connected thereto, the current may be drawn from the pads 113a and 113b to the second touch electrodes 121-3 to 121-16 or drawn from the second touch electrodes 121-3 to 121-16 to the pads 113a and 113b.

[0666] Separately, in the case of the stylus pen 10b of FIG. 4(b), the electric field signal E is output to the touch electrodes 111 and 121, so that a sensing signal is received according to the electric field signal E applied to the first touch electrodes 111-2 and 111-3 and the second touch electrodes 121-2 and 121-3.

[0667] Next, the sensing signal by the stylus pen 10b in FIG. 4(b) will be described with reference to FIGS.

[0668] 56 and 57 are graphs illustrating sensing signals from a stylus pen according to an embodiment.

[0669] 56, the currents are induced in opposite directions between the first touch electrodes 111-1 and 111-2 and the first touch electrodes 111-3 to 111-10, so that the sense signal AB5 measured by the first touch electrodes 111-2 and 111-3 has an opposite sign. Also, since a larger current is induced closer to the inductor unit 14, the magnitude of the current induced in the first touch electrodes 111-2 and 111-3 is larger than the magnitude of the current induced in the other first touch electrodes 111-1, 111-4 to 111-10.

[0670] The stylus pen 10b outputs an electric field signal E to the first touch electrodes 111-2 and 111-3 via the conductive tip 11b, and thus a sensing signal AE5 is received.

[0671] The sensing signal AC5 received by the first driving / receiving unit 2620 has a form in which the sensing signal AB5 and the sensing signal AE5 are combined. In this case, the controller 2624 may determine the touch point between the two first touch electrodes 111-2 and 111-3 where the difference in magnitude of the sensing signal AC5 is the largest, and may calculate the exact touch point using interpolation, etc.

[0672] FIG. 57 is a graph of the sensing signals received from the second touch electrodes 121-1 to 121-16.

[0673] 57, the currents are induced in opposite directions between the second touch electrodes 121-1 and 121-2 and the second touch electrodes 121-3 to 121-16, so that the sense signal AB6 measured by the second touch electrodes 121-2 and 121-3 has an opposite sign. Also, since a larger current is induced closer to the inductor unit 14, the magnitude of the current induced in the second touch electrodes 121-2 and 121-3 is larger than the magnitude of the current induced in the other second touch electrodes 121-1, 121-4 to 121-16.

[0674] The stylus pen 10b outputs an electric field signal E to the second touch electrodes 121-2 and 121-3 via the conductive tip 11b, and thus a sensing signal AE6 is received.

[0675] The sensing signal AC6 received by the second driving / receiving unit 2622 has a form in which the sensing signal AB6 and the sensing signal AE6 are combined. In this case, the controller 2624 may determine the touch point between the two second touch electrodes 121-2 and 121-3 where the difference in magnitude of the sensing signal AC6 is the largest, and may calculate the exact touch point using interpolation, etc.

[0676] Next, a detection signal by the stylus pen 10a in FIG. 4(a) will be described with reference to FIGS.

[0677] 58 and 59 are graphs showing sensing signals by a stylus pen according to another embodiment.

[0678] FIG. 58 is a graph of the sensing signals received from the first touch electrodes 111-1 to 111-10.

[0679] 58, since the current directions between the first touch electrodes 111-1 and 111-2 and the first touch electrodes 111-3 to 111-10 are opposite to each other, the sensing signal AB7 received by the first driving / receiving unit 2620 has opposite signs between the first touch electrodes 111-2 and 111-3. Also, since a larger current is induced closer to the inductor unit 14, the magnitude of the current induced in the first touch electrodes 111-2 and 111-3 is larger than the magnitude of the current induced in the other first touch electrodes 111-1 and 111-4 to 111-10.

[0680] In this case, the controller 2624 may determine the touch point between the two first touch electrodes 111-2 and 111-3, where the signs of the sensing signal AB7 are opposite and the magnitudes of the respective signals are large, and the exact touch point may be calculated using interpolation, etc.

[0681] FIG. 59 is a graph of the sensing signals received from the second touch electrodes 121-1 to 121-16.

[0682] 59, since the current directions between the second touch electrodes 121-1 and 121-2 and the second touch electrodes 121-3 to 121-16 are opposite to each other, the sensing signal AB8 received by the second driving / receiving unit 2622 has opposite signs between the second touch electrodes 121-2 and 121-3. Also, since a larger current is induced closer to the inductor unit 14, the magnitude of the current induced in the second touch electrodes 121-2 and 121-3 is larger than the magnitude of the current induced in the other second touch electrodes 121-1, 121-4 to 121-16.

[0683] In this case, the controller 2624 may determine the touch point between the two second touch electrodes 121-2 and 121-3, where the signs of the sensing signal AB8 are opposite and the magnitudes of the respective signals are large, and the exact touch point may be calculated using interpolation, etc.

[0684] Meanwhile, the method of measuring a signal of the touch unit shown in Fig. 49 to Fig. 59 may be applied to the sensor unit and the control unit shown in Fig. 16 to Fig. 45. Specifically, any one of the first to fourth patterns 101, 102, 103, and 104 shown in Fig. 16 may correspond to the first touch electrodes 111-1 to 111-10 or the second touch electrodes 121-1 to 121-16 shown in Fig. 49. For example, any one of the first pattern 101 and the second pattern 102 shown in Fig. 16 may correspond to the first touch electrodes 111-1 to 111-10 shown in Fig. 49, and any one of the third pattern 103 and the fourth pattern 104 shown in Fig. 16 may correspond to the second touch electrodes 121-1 to 121-16 shown in Fig. 49.

[0685] As an example, if the first pattern 101 shown in FIG. 16 corresponds to the first touch electrodes 111-1 to 111-10 shown in FIG. 49 and the third pattern 103 shown in FIG. 16 corresponds to the second touch electrodes 121-1 to 121-16 shown in FIG. 49, the first patterns 101 of the sensor unit 100 in FIG. 16 may be pen sensing patterns in the horizontal axis direction, and the third patterns 103 may be pen sensing patterns in the vertical axis direction. In this case, a control unit that controls the sensor unit 100 receives stylus pen sensing signals from the first patterns 101. The control unit may determine a touch point on the horizontal axis of the stylus pen between two pen sensing patterns that output two pen sensing signals having maximum and minimum values ​​among the stylus pen sensing signals received from the first patterns 101. In addition, the control unit may determine the touch point on the vertical axis of the stylus pen between two pen sensing patterns that output two pen sensing signals with opposite signs and the largest signal magnitudes among the stylus pen sensing signals received from the multiple third patterns 103.

[0686] Alternatively, the controller may determine a point between two adjacent patterns of signals having opposite signs among the stylus pen sensing signals received from the plurality of first patterns 101 as a horizontal axis touch point of the stylus pen. Also, the controller may determine a point between two adjacent patterns of signals having opposite signs among the stylus pen sensing signals received from the plurality of third patterns 103 as a vertical axis touch point of the stylus pen.

[0687] Alternatively, the controller may differentiate the stylus pen sensing signals received from the plurality of first patterns 101 and determine a position on the pen sensing pattern where the differential value is maximum as a horizontal axis touch point of the stylus pen. Also, the controller may differentiate the stylus pen sensing signals received from the plurality of third patterns 103 and determine a position on the pen sensing pattern where the differential value is maximum as a vertical axis touch point of the stylus pen.

[0688] Alternatively, the control unit may receive differential signals from two adjacent first patterns among the plurality of first patterns 101, and determine a touch point of a stylus pen based on a maximum or minimum value from the received differential signals. For example, a position on the pen sensing pattern having a maximum or minimum value from the received differential signals may be determined as ...

Claims

1. A pen and touch input system including a touch input device including a sensor unit and a control unit that controls the sensor unit, and a stylus pen that can operate with the touch input device, The sensor unit includes: a plurality of first patterns extending in a first direction, the first side end of the first patterns being electrically connected to the control unit; a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns; a plurality of third patterns extending in a second direction different from the first direction, the first side end of the third patterns being electrically connected to the control unit; a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, the second side ends of at least some of the second patterns among the plurality of second patterns are electrically connected to each other; the second side ends of at least some of the fourth patterns among the plurality of fourth patterns are electrically connected to each other; The stylus pen is A body part and a chip exposed from within the body portion to the outside; an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit, the controller is for applying touch driving signals in the first patterns and receiving touch sensing signals in the third patterns; the control unit is for applying a stylus pen driving signal in at least one of the first through fourth patterns; the control unit is for receiving a stylus pen sensing signal from at least one of the first through fourth patterns; The control unit determines a touch point of the stylus pen between two pen sensing patterns outputting two pen sensing signals having maximum and minimum values ​​among the stylus pen sensing signals received from the pen sensing patterns. Pen and touch input systems.

2. A pen and touch input system including a touch input device including a sensor unit and a control unit that controls the sensor unit, and a stylus pen that can operate with the touch input device, The sensor unit includes: a plurality of first patterns extending in a first direction, the first side end of the first patterns being electrically connected to the control unit; a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns; a plurality of third patterns extending in a second direction different from the first direction, the first side end of the third patterns being electrically connected to the control unit; a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, the second side ends of at least some of the second patterns among the plurality of second patterns are electrically connected to each other; the second side ends of at least some of the fourth patterns among the plurality of fourth patterns are electrically connected to each other; The stylus pen is A body part and a chip exposed from within the body portion to the outside; an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit, the controller is for applying touch driving signals in the first patterns and receiving touch sensing signals in the third patterns; the control unit is for applying a stylus pen driving signal in at least one of the first through fourth patterns; the control unit is for receiving a stylus pen sensing signal from at least one of the first through fourth patterns; The control unit determines a touch point of the stylus pen between two adjacent pen sensing pattern signals having opposite signs among the received stylus pen sensing signals. Pen and touch input systems.

3. A pen and touch input system including a touch input device including a sensor unit and a control unit that controls the sensor unit, and a stylus pen that can operate with the touch input device, The sensor unit includes: a plurality of first patterns extending in a first direction, the first side end of the first patterns being electrically connected to the control unit; a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns; a plurality of third patterns extending in a second direction different from the first direction, the first side end of the third patterns being electrically connected to the control unit; a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, the second side ends of at least some of the second patterns among the plurality of second patterns are electrically connected to each other; the second side ends of at least some of the fourth patterns among the plurality of fourth patterns are electrically connected to each other; The stylus pen is A body part and a chip exposed from within the body portion to the outside; an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit, the controller is for applying touch driving signals in the first patterns and receiving touch sensing signals in the third patterns; the control unit is for applying a stylus pen driving signal in at least one of the first through fourth patterns; the control unit is for receiving a stylus pen sensing signal from at least one of the first through fourth patterns; The control unit differentiates the received stylus pen sensing signal and determines a position on the pen sensing pattern where a differential value is maximized as a touch point of the stylus pen. Pen and touch input systems.

4. A pen and touch input system including a touch input device including a sensor unit and a control unit that controls the sensor unit, and a stylus pen that can operate with the touch input device, The sensor unit includes: a plurality of first patterns extending in a first direction, the first side end of the first patterns being electrically connected to the control unit; a plurality of third patterns extending in a second direction different from the first direction, the first side end of the third patterns being electrically connected to the controller; The stylus pen is A body part and a chip exposed from within the body portion to the outside; an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit, the controller is for applying touch driving signals in the first patterns and receiving touch sensing signals in the third patterns; the control unit is for applying a stylus pen driving signal in at least one pen driving pattern among the first patterns and the third patterns; the control unit is configured to receive a stylus pen sensing signal from at least one pen sensing pattern among the first patterns and the third patterns; The control unit determines a touch point of the stylus pen between two pen sensing patterns outputting two pen sensing signals having maximum and minimum values ​​among the stylus pen sensing signals received from the pen sensing patterns. Pen and touch input systems.

5. A pen and touch input system including a touch input device including a sensor unit and a control unit that controls the sensor unit, and a stylus pen that can operate with the touch input device, The sensor unit includes: a plurality of first patterns extending in a first direction, the first side end of the first patterns being electrically connected to the control unit; a plurality of third patterns extending in a second direction different from the first direction, the first side end of the third patterns being electrically connected to the controller; The stylus pen is A body part and a chip exposed from within the body portion to the outside; an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit, the controller is for applying touch driving signals in the first patterns and receiving touch sensing signals in the third patterns; the control unit is for applying a stylus pen driving signal in at least one pen driving pattern among the first patterns and the third patterns; the control unit is configured to receive a stylus pen sensing signal from at least one pen sensing pattern among the first patterns and the third patterns; The control unit determines a touch point of the stylus pen between two adjacent pen sensing pattern signals having opposite signs among the received stylus pen sensing signals. Pen and touch input systems.

6. A pen and touch input system including a touch input device including a sensor unit and a control unit that controls the sensor unit, and a stylus pen that can operate with the touch input device, The sensor unit includes: a plurality of first patterns extending in a first direction, the first side end of the first patterns being electrically connected to the control unit; a plurality of third patterns extending in a second direction different from the first direction, the first side end of the third patterns being electrically connected to the controller; The stylus pen is A body part and a chip exposed from within the body portion to the outside; an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit, the controller is for applying touch driving signals in the first patterns and receiving touch sensing signals in the third patterns; the control unit is for applying a stylus pen driving signal in at least one pen driving pattern among the first patterns and the third patterns; the control unit is configured to receive a stylus pen sensing signal from at least one pen sensing pattern among the first patterns and the third patterns; The control unit differentiates the received stylus pen sensing signal and determines a position on the pen sensing pattern where a differential value is maximized as a touch point of the stylus pen. Pen and touch input systems.

7. A pen and touch input system including a touch input device including a sensor unit and a control unit that controls the sensor unit, and a stylus pen that can operate with the touch input device, The sensor unit includes: a plurality of first patterns extending in a first direction, the first side end of the first patterns being electrically connected to the control unit; a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns; a plurality of third patterns extending in a second direction perpendicular to the first direction, the first side end of the third patterns being electrically connected to the control unit; a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, the second side end portions of at least a part of the second patterns among the second patterns or at least a part of the fourth patterns among the fourth patterns are electrically connected to each other; The stylus pen is A body part and a chip exposed from within the body portion to the outside; an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit, the controller is for applying touch driving signals in the first patterns and receiving touch sensing signals in the third patterns; the control unit is for applying a stylus pen driving signal in at least one of the first through fourth patterns; The control unit is selecting at least one of the first through fourth patterns as a pen sensing pattern; sensing a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern; the control unit is for receiving a stylus pen sensing signal from the pen sensing pattern; The control unit determines a touch point of the stylus pen between two pen sensing patterns outputting two pen sensing signals having maximum and minimum values ​​among the stylus pen sensing signals received from the pen sensing patterns. Pen and touch input systems.

8. A pen and touch input system including a touch input device including a sensor unit and a control unit that controls the sensor unit, and a stylus pen that can operate with the touch input device, The sensor unit includes: a plurality of first patterns extending in a first direction, the first side end of the first patterns being electrically connected to the control unit; a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns; a plurality of third patterns extending in a second direction perpendicular to the first direction, the first side end of the third patterns being electrically connected to the control unit; a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, the second side end portions of at least a part of the second patterns among the second patterns or at least a part of the fourth patterns among the fourth patterns are electrically connected to each other; The stylus pen is A body part and a chip exposed from within the body portion to the outside; an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit, the controller is for applying touch driving signals in the first patterns and receiving touch sensing signals in the third patterns; the control unit is for applying a stylus pen driving signal in at least one of the first through fourth patterns; The control unit is selecting at least one of the first through fourth patterns as a pen sensing pattern; sensing a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern; the control unit is for receiving a stylus pen sensing signal from the pen sensing pattern; The control unit determines a touch point of the stylus pen between two adjacent pen sensing pattern signals having opposite signs among the received stylus pen sensing signals. Pen and touch input systems.

9. A pen and touch input system including a touch input device including a sensor unit and a control unit that controls the sensor unit, and a stylus pen that can operate with the touch input device, The sensor unit includes: a plurality of first patterns extending in a first direction, the first side end of the first patterns being electrically connected to the control unit; a plurality of second patterns extending in the first direction and disposed adjacent to the first patterns; a plurality of third patterns extending in a second direction perpendicular to the first direction, the first side end of the third patterns being electrically connected to the control unit; a plurality of fourth patterns extending in the second direction and disposed adjacent to the third patterns, the second side end portions of at least a part of the second patterns among the second patterns or at least a part of the fourth patterns among the fourth patterns are electrically connected to each other; The stylus pen is A body part and a chip exposed from within the body portion to the outside; an inductor portion including a ferrite core located within the body portion and a coil wound in multiple layers on at least a portion of the ferrite core; a capacitor portion located within the body portion and electrically connected to the inductor portion to form a resonant circuit, the controller is for applying touch driving signals in the first patterns and receiving touch sensing signals in the third patterns; the control unit is for applying a stylus pen driving signal in at least one of the first through fourth patterns; The control unit is selecting at least one of the first through fourth patterns as a pen sensing pattern; sensing a stylus pen signal emitted from the stylus pen through the selected pen sensing pattern; the control unit is for receiving a stylus pen sensing signal from the pen sensing pattern; The control unit differentiates the received stylus pen sensing signal and determines a position on the pen sensing pattern where a differential value is maximized as a touch point of the stylus pen. Pen and touch input systems.

10. The dielectric constant of the ferrite core is 1000 or less, the coil is wound with adjacent winding layers alternately, and the coil is a wire in a form in which two or more insulated wires are wrapped around it. A pen and touch input system according to any preceding claim.

11. The coil is wound such that adjacent winding layers are inclined in a zigzag pattern. A pen and touch input system according to any preceding claim.

12. The ferrite core contains nickel. A pen and touch input system according to any preceding claim.

13. The coil is a rich wire. A pen and touch input system according to any preceding claim.

14. Further comprising a bobbin covering at least a portion of the ferrite core; The coil is wound on at least a portion of the bobbin. A pen and touch input system according to any preceding claim.

15. The inductor unit is configured by connecting two or more inductors in series. A pen and touch input system according to any preceding claim.

16. further comprising a conductive blocking member positioned over at least a portion of the inductor portion.

16. The pen and touch input system of claim 15.

17. The blocking member includes one slit that blocks generation of eddy currents, The one slit separates both ends of the blocking member in a first direction, The first direction is a direction in which eddy currents are formed.

17. The pen and touch input system of claim 16.

18. any one of the second patterns and the fourth patterns is for applying a stylus pen driving signal for driving the stylus pen; 10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

19. the remaining one of the plurality of second patterns and the plurality of fourth patterns is electrically floating; 20. The pen and touch input system of claim 18.

20. and applying a stylus pen driving signal for driving the stylus pen through a pattern different from the pattern for applying the touch driving signal and the pattern for receiving the touch sensing signal.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

21. At least one of the first patterns and the third patterns is a pen driving pattern.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

22. and applying the stylus pen driving signal through a pattern that is the same as a pattern for applying the touch driving signal or a pattern for receiving the touch sensing signal.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

23. At least one of the first patterns and the third patterns is for receiving the stylus pen sensing signal.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

24. At least one of the first patterns and the third patterns is for receiving the stylus pen sensing signal.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

25. and receiving the stylus pen sensing signal through a pattern that is the same as a pattern for applying the touch driving signal or a pattern for receiving the touch sensing signal.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

26. The length of the first pattern and the second pattern is longer than the length of the third pattern and the fourth pattern.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

27. At least one of the first to fourth patterns is for applying a stylus pen driving signal for driving the stylus pen and for sensing a sensing signal for sensing the stylus pen.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

28. The first pattern includes patterns 1a and 1b arranged along the first direction, The second pattern includes a pattern 2a and a pattern 2b arranged along the first direction, At least some of the second side ends of the second a patterns are electrically connected to each other; At least some of the second side ends of the second b patterns are electrically connected to each other; At least some second side ends of the plurality of 2a patterns and at least some second side ends of the plurality of 2b patterns face each other.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

29. The length of the first pattern and the second pattern is longer than the length of the third pattern and the fourth pattern.

29. The pen and touch input system of claim 28.

30. At least one of the first pattern to the fourth pattern includes a plurality of main pattern portions and a connecting pattern portion connecting two adjacent main pattern portions among the plurality of main pattern portions.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

31. At least a portion of the main pattern portion has a diamond shape.

31. The pen and touch input system of claim 30.

32. a main pattern portion of the second pattern having a shape corresponding to a main pattern portion of the first pattern; a main pattern portion of the fourth pattern having a shape corresponding to a main pattern portion of the third pattern; 31. The pen and touch input system of claim 30.

33. the first pattern or the third pattern has an opening; The second pattern or the fourth pattern is disposed inside the opening of the first pattern or the third pattern, respectively.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

34. The first pattern or the third pattern surrounds the second pattern or the fourth pattern, respectively.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

35. The first pattern and the second pattern are disposed in the same layer, or the third pattern and the fourth pattern are disposed in the same layer.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

36. At least a portion of the first pattern and at least a portion of the second pattern are disposed in a first layer; At least a portion of the third pattern and at least a portion of the fourth pattern are disposed on a second layer.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

37. second side ends of the second patterns and the fourth patterns are electrically connected to each other through vias; 10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

38. The control unit is applying a driving signal for touch sensing in at least one first pattern among the plurality of first patterns; for receiving a sensing signal received from at least one third pattern among the plurality of third patterns; A pen and touch input system according to any preceding claim.

39. The control unit is the second patterns or the fourth patterns are connected to a plurality of driving circuits; 39. The pen and touch input system of claim 38.

40. The control unit is applying a driving signal for touch sensing in at least one first pattern among the plurality of first patterns; receiving a sensing signal from at least one third pattern among the plurality of third patterns; A recording medium on which a program for executing the above is recorded, A pen and touch input system according to any preceding claim.

41. The control unit is connecting the second patterns or the fourth patterns to a plurality of driving circuits. A recording medium on which a program for executing the above is recorded, 41. A pen and touch input system according to claim 40.

42. The touch sensing device further includes a plurality of driving circuits for touch sensing, and a plurality of sensing circuits for touch sensing, The control unit is applying the touch driving signal to at least one of the first patterns or the third patterns through the touch sensing driving circuit units; receiving the touch sensing signal received from at least one of the first patterns or the third patterns through the plurality of touch sensing sensing circuits; 10. A pen and touch input system according to any preceding claim for controlling a display device.

43. a plurality of pen drive circuitry; The control unit is applying a signal equal to the touch driving signal to the second patterns or the fourth patterns through the pen driving circuit units; 10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9 for controlling a touch panel.

44. The control unit is The stylus pen driving signal is output to at least one of the first through fourth patterns, a driving signal that is opposite to the stylus pen driving signal is output to at least one other driving pattern among the one or more patterns; 10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

45. The control unit is outputting the stylus pen driving signal to at least one of the first through fourth patterns; outputting a driving signal opposite to the stylus pen driving signal to at least one other driving pattern among the one or more patterns; 10. The pen and touch input system according to claim 1, further comprising a recording medium having a program recorded thereon for executing the above.

46. a driving circuit for driving a number of pens; The control unit is applying the stylus pen driving signal to at least one pen driving pattern through at least one pen driving circuit unit among the plurality of pen driving circuit units; a signal opposite to the stylus pen driving signal is applied to at least one other pen driving pattern through at least one other pen driving circuit unit among the plurality of pen driving circuit units; 10. A pen and touch input system according to any preceding claim for controlling a display device.

47. The control unit is an output value from at least one of the pen sensing patterns; an output value from at least one pen sensing pattern different from the pen sensing pattern; and for controlling the stylus pen to sense based on the A pen and touch input system according to any preceding claim.

48. The control unit is an output value from at least one of the pen sensing patterns; an output value from at least one pen sensing pattern different from the pen sensing pattern; sensing the pen based on A recording medium on which a program for executing the above is recorded, A pen and touch input system according to any preceding claim.

49. a sensing circuit for multiple pen sensing; The control unit is an output value from at least one of the pen sensing patterns sensed through at least one of the plurality of pen sensing circuit units; an output value from at least one pen sensing pattern among the pen sensing patterns different from the pen sensing pattern sensed through at least another pen sensing circuit unit among the plurality of pen sensing sensing circuits; and for controlling the pen to sense based on the A pen and touch input system according to any preceding claim.

50. At least a part of the pen sensing sensing circuit unit can be used for touch sensing.

50. The pen and touch input system of claim 49.

51. a capacitor connected to a pattern at the second end of the plurality of second patterns or the plurality of fourth patterns; 10. The pen and touch input system of claim 1 further comprising:

52. the second pattern is a bar pattern disposed inside the first pattern and extending in a first direction, the fourth pattern is a bar pattern disposed inside the third pattern and extending in a second direction, a plurality of fifth patterns disposed between the plurality of first patterns, each having a shape corresponding to and overlapping a main pattern portion of the third pattern, and electrically connected to the fourth pattern; a capacitor connected to the second end pattern among the fifth patterns; a plurality of sixth patterns disposed between the plurality of third patterns, each having a shape corresponding to and overlapping a main pattern portion of the first pattern, and electrically connected to the second pattern; The pen and touch input system of claim 1 , further comprising: a capacitor connected to the pattern at the second end of the sixth patterns.

53. at least one trace directly connected to where the patterns located at the second end are electrically connected to each other and disposed outside an active area of ​​the touch input device; 10. The pen and touch input system of claim 1 further comprising:

54. The sensor unit further includes at least one of a fifth pattern and a sixth pattern, the fifth pattern is disposed in a layer different from a layer in which any one of the third pattern and the fourth pattern is disposed, is electrically connected to any one of the third pattern and the fourth pattern, and is disposed to overlap in a vertical direction with at least a portion of the remaining one of the third pattern and the fourth pattern; the sixth pattern is disposed on a layer different from a layer on which any one of the first pattern and the second pattern is disposed, is electrically connected to any one of the first pattern and the second pattern, and is disposed to overlap in a vertical direction with at least a portion of the remaining one of the first pattern and the second pattern; 10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

55. the first pattern and the second pattern are arranged on different layers, and the first pattern is arranged to overlap a portion of the second pattern in a vertical direction; The third pattern and the fourth pattern are arranged on different layers, and the third pattern is arranged to overlap a portion of the fourth pattern in a vertical direction.

10. A pen and touch input system according to any one of claims 1 to 3 and 7 to 9.

56. a plurality of traces connecting the pen sensing pattern and the control unit; the directions of currents flowing through two of the plurality of traces corresponding to the two pen sensing patterns are opposite to each other; A pen and touch input system according to any preceding claim.

57. Further comprising a magnetic field shielding layer formed in a layer different from the sensor portion. A pen and touch input system according to any preceding claim.

58. Further comprising a display panel; the display panel has a folding region that is bent about a folding axis and a non-folding region that is spaced apart by the folding region; 58. The pen and touch input system of claim 57, wherein the magnetic field shielding layer is positioned corresponding to all of the folded regions and the non-folded regions.

59. Further comprising a display panel; the display panel has a folding region that is bent about a folding axis and a non-folding region that is spaced apart by the folding region; 58. The pen and touch input system of claim 57, wherein the magnetic field shielding layer is spaced apart from and corresponds to the non-folding region.

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