Touch input device

Abstract

To provide a touch input device that can minimize the influence of flicker.SOLUTION: A touch input device includes as a touch input device including a display panel, a touch sensor including a plurality of first electrodes and a plurality of second electrodes disposed so as to intersect with the first electrodes, and a touch controller electrically connected to the first electrodes and the second electrodes and configured to control the touch sensor. The second electrode includes a pair of electrode parts. One electrode part of the pair of electrode parts is disposed to get adjacent to the electrode of a part of at least one of the plurality of first electrodes. The other electrode part of the pair of electrode parts of the second electrode is disposed to get adjacent to the electrode of the rest of at least one of the plurality of first electrodes. The touch controller is configured to drive the touch sensor in synchronization with a horizontal synchronous signal applied to each scan line of the display panel.SELECTED DRAWING: Figure 31

Description

[Technical Field]

[0001] The present invention relates to a touch input device, and more particularly to a display panel driving time. By driving the touch sensor with consideration for the display panel, Display noise and touch sensor driving cause noise on the display panel. The present invention relates to a touch input device that can minimize the effect of flicker. It is something. [Background technology]

[0002] A wide variety of input devices are utilized to operate a computing system. For example, buttons, keys, joysticks, and touchscreens. Input devices such as touch screens are used. As a result, touch screens are increasingly being used to interact with computing systems. A touch sensor is a type of information input device that is attached to a display panel. For example, the touch sensor may be attached to one side of the display panel. The display panel can be integrated with the LCD panel. While viewing the image displayed on the panel screen, touch the touch sensor to input information. It is possible.

[0003] FIG. 1 is a diagram schematically illustrating a conventional octa-type stacked structure.

[0004] OCTA, a type of touchscreen panel technology, is a technology that is compatible with On Cell Touch AMOLED. As shown in Figure 1, the touch sensor is placed on top of the AMOLED display cell. It is a type of TSP (Touch Screen Panel) that has a direct deposition of a touch screen. This technology allows the touchscreen functionality of smartphones / tablets to be embedded in the OLED panel. Since there is no tempered glass between the poles, it has the effect of providing higher clarity than existing general TSPs. .

[0005] Y-OCTA has developed a touchscreen with a touch sensor directly deposited on top of the cell. Samsung Display's flexible OLED panel is a key element in the OCTA series. The name is derived from the brand name "YOUM." Y-OCTA technology is a technology that is used in OLED manufacturing. It is applied to the thin film encapsulation (TFE) process. Aluminum metal used as a touch sensor between the organic material and the polarizer The Y-OCTA is a touch screen that is realized by patterning a mesh sensor. The polarizer is attached close to the cover window and the light is emitted at the curved edge. This can solve the visibility problem that occurs. By removing the panel, the thickness is reduced and the lamination process is omitted, resulting in a lower price. can be reduced.

[0006] Conventional touch input devices with wide-octagon touch screen panels are LGM (Low Gr The problem is that the touch sensor is driven by a single layer or a double layer. When the driving electrode and the receiving electrode are implemented, a touch input device having the touch sensor mounted thereon can be used. When a specific touch occurs without the user holding the device by hand (floating state), the touch The signal that should be detected normally from the perspective of the input device disappears or is not detected. This is a phenomenon in which an inconsistent signal is split and perceived as a signal touched at two or more points. In addition, touch input devices with conventional Wy-Octa touch screen panels There is a flicker problem in the display panel due to the driving of the sensor. This is a phenomenon in which the display screen flashes or vibrates very quickly, and can be caused by a variety of factors. Therefore, this can occur.

[0007] In the past, to solve this flicker problem, a display was created for each frame. Dithering is used, the driving voltage of the touch sensor is lowered, and VRR (Variable Resistor Ratio) is used. The frame rate (frame Refresh Rate) is sent from the display driver chip (DDI) when rate) information and try to change the frequency of the touch sensor drive signal to match it. However, these attempts have not been able to completely solve the flicker problem. Summary of the Invention [Problem to be solved by the invention]

[0008] The problem to be solved by the present invention is to reduce display noise caused by driving a display panel. The present invention aims to provide a touch input device that can minimize noise.

[0009] In addition, the influence of flicker that may occur on the display panel when the touch sensor is driven is also a concern. A touch input device that can minimize the

[0010] Also, the present invention provides a touch input device that can improve touch malfunctions in the LGM state. And so. [Means for solving the problem]

[0011] A touch input device according to an embodiment of the present invention includes a display panel. a plurality of first electrodes and a plurality of second electrodes arranged to intersect with the plurality of first electrodes; a touch sensor including two electrodes, and a contact electrically connected to the plurality of first electrodes and the plurality of second electrodes; a touch controller configured to control the touch sensor; The second electrode includes a pair of electrode portions, and one of the pair of electrode portions is The second electrode is disposed adjacent to at least one of the plurality of first electrodes. The other electrode portion of the pair of electrode portions is connected to at least one of the plurality of first electrodes. The touch sensor is disposed adjacent to the other two electrodes. a display panel that is driven in synchronization with at least one horizontal sync signal applied to the display panel; However, after the horizontal synchronization signal starts to be applied to the display panel, The touch sensor is configured to drive the touch sensor during the period.

[0012] According to another embodiment of the present invention, a touch input device includes a display panel. An apparatus comprising: a plurality of first electrodes; and a plurality of electrodes arranged to intersect the plurality of first electrodes. a touch sensor including a second electrode; and a touch sensor electrically connected to the plurality of first electrodes and the plurality of second electrodes. a touch controller coupled to the touch sensor and configured to control the touch sensor; The second electrode includes a pair of electrode portions, and one of the pair of electrode portions is The second electrode is disposed adjacent to at least one of the plurality of first electrodes. The other electrode portion of the pair of electrode portions of the electrode is at least one of the plurality of first electrodes. The touch controller is disposed adjacent to one of the remaining electrodes. The touch sensor is applied to the display panel during a time period different from the time period during which a horizontal synchronization signal is applied to the display panel. It is configured to drive. [Effects of the Invention]

[0013] By using the touch input device according to the embodiment of the present invention, it is possible to drive the display panel. This has the advantage of minimizing display noise.

[0014] In addition, the influence of flicker that may occur on the display panel when the touch sensor is driven is also a concern. This has the advantage of being able to minimize

[0015] Another advantage is that it can improve touch malfunctions in the LGM state. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a diagram schematically illustrating a conventional octa-type stack structure. [Figure 2] 1 is a schematic diagram of a touch input device according to one embodiment of the present invention; [Figure 3] 3 is a diagram illustrating a receiving circuit unit 110 according to an example of the touch controller 15 shown in FIG. 2. [Figure 4] 10 is a diagram illustrating another example of a receiving circuit unit 110' of the touch controller 15 shown in FIG. 2. [Figure 5]10 is a diagram illustrating a receiving circuit unit 110″ according to another example of the touch controller 15 shown in FIG. 2. [Figure 6] 10 is a diagram illustrating a receiving circuit unit 110''', 110'''' according to another example of the touch controller 15 shown in FIG. 2. [Figure 7] 10 is a diagram illustrating a receiving circuit unit 110''''' according to another example of the touch controller 15 shown in FIG. 2. [Figure 8] 3 is a plan view of a portion of one embodiment of touch sensor 10 shown in FIG. 2. [Figure 9] 9 is a plan view of the touch sensor shown in FIG. 8 separated into layers. [Figure 10] 9 is a diagram illustrating electrical connections between a plurality of receiving electrodes shown in FIG. 8; [Figure 11] 3 is a plan view of a portion of another embodiment of the touch sensor 10 shown in FIG. 2. [Figure 12] 12 is a plan view of the touch sensor shown in FIG. 11 separated into layers. [Figure 13] 12 is a diagram illustrating electrical connections between a plurality of receiving electrodes shown in FIG. 11; [Figure 14] 3 is a plan view of a portion of yet another embodiment of the touch sensor 10 shown in FIG. 2. FIG. [Figure 15] 15 is a plan view of the touch sensor shown in FIG. 14 separated into layers. [Figure 16] 3 is a plan view of a portion of yet another embodiment of the touch sensor 10 shown in FIG. 2. FIG. [Figure 17] 17 is a plan view of the touch sensor shown in FIG. 16 separated into layers. [Figure 18] 3 is a plan view of a portion of yet another embodiment of the touch sensor 10 shown in FIG. 2. FIG. [Figure 19] 1 is a schematic diagram of a touch input device according to another embodiment of the present invention; [Figure 20](a) is a graph showing that multi-driving is performed for each of the four drive electrodes in the touch input device shown in Figure 2, and (b) is an example of a drive signal (or drive code) applied to four drive electrodes Tx0, Tx1, Tx2, and Tx3 that are simultaneously driven during multi-driving of (a) in Figure 20. [Figure 21] (a) is a graph showing that all drive electrodes are multi-driven in the touch input device shown in Figure 19, and (b) is an example of a drive signal (or drive code) applied to all drive electrodes Tx0, Tx1, Tx2, Tx3, ... that are driven simultaneously during multi-driving in (a) of Figure 21. [Figure 22] 9 is a diagram illustrating a driving circuit unit 130' according to an example of the touch controller 15 shown in FIG. 8. [Figure 23] 10 is a diagram illustrating another example of a driving circuit unit 130''' of the touch controller 15 shown in FIG. 8. [Figure 24] 10 is a diagram illustrating a driving circuit unit 130'''' according to another example of the touch controller 15 shown in FIG. 8. [Figure 25] 20 is a diagram illustrating a driving circuit unit 130''''' according to another example of the touch controller 15 shown in FIG. 19. [Figure 26] FIG. 20 is a plan view of a portion of one embodiment of the touch sensor 10' shown in FIG. 19. [Figure 27] 20 is a plan view of a portion of another embodiment of touch sensor 10' shown in FIG. 19. [Figure 28] 20 is a plan view of a portion of yet another embodiment of touch sensor 10' shown in FIG. 19. [Figure 29] 20 is a plan view of a portion of yet another embodiment of touch sensor 10' shown in FIG. 19. [Figure 30] 20 is a plan view of a portion of yet another embodiment of touch sensor 10' shown in FIG. 19. [Figure 31] 9 is a diagram illustrating a first driving method of the touch input devices 1 and 1′ shown in FIGS. 2 and 8. [Figure 32] 10 is a diagram illustrating a second driving method of the touch input devices 1 and 1' shown in FIGS. 2 and 8. [Figure 33] 10 is a diagram illustrating a third driving method of the touch input devices 1 and 1′ shown in FIGS. 2 and 8. [Figure 34] 10 is a diagram illustrating a fourth driving method of the touch input devices 1 and 1′ shown in FIGS. 2 and 8. [Figure 35] 10 is a diagram illustrating a fifth driving method of the touch input devices 1 and 1′ shown in FIGS. 2 and 8. DETAILED DESCRIPTION OF THE INVENTION

[0017] The touch input device according to various embodiments of the present document may be used as an electronic device, e.g., a smartphone. Smartphones, tablet personal computers, vehicle displays Playing devices, mobile phones, video phones, e-book readers reader), laptop PC (laptop personal computer), netbook computer (netbook computer), mobile medical device, camera, or wearable device ( The wearable device may include at least one of: Accessories (e.g. watches, rings, bracelets, anklets, necklaces, glasses, contact lenses, or head-mounted devices (HMD), textiles or clothing body-based (e.g., electronic clothing), body-attached (e.g., skin pads or tattoos), or may include at least one of a bioimplantable type (e.g., an implantable circuit).

[0018] FIG. 2 is a schematic diagram of a touch input device according to one embodiment of the present invention.

[0019] Referring to FIG. 2, a touch input device 1 according to an embodiment of the present invention includes a touch sensor 10, a display 11, a display 12, a display 13, a display 14, a display 15, a display 16, a display 17, a display 18, a display 19, a display 20, a display 21, a display 22, a display 23, a display 24, a display 25, a display 26, a display a display panel 20, a touch controller 15 for controlling the touch sensor 10, and The display panel 20 may include a display controller 25 for controlling the display panel 20. The touch controller 15 and display controller 25 are used as a single controller. They may be integrated.

[0020] The touch sensor 10 includes a plurality of electrodes (or patterns). The electrode includes a plurality of second electrodes.

[0021] The touch controller 15 may include a driving unit 12 , a sensing unit 11 , and a control unit 13 .

[0022] The driving unit 12 applies a driving signal (or a TX signal) to the touch sensor 10 under the control of the control unit 13. The sensing unit 11 receives the sensing signal (or RX signal) from the touch sensor 10.

[0023] The driving unit 12 can sequentially supply driving signals to the driving electrodes of the touch sensor 10. .

[0024] The sensing unit 11 receives signals output from a plurality of receiving electrodes of the touch sensor 10. The signal includes information on the amount of capacitance change between the driving electrode and the receiving electrode adjacent to each other. , an LGM noise signal, and a display noise signal.

[0025] The sensing unit 11 subtracts two signals from the signals output from the plurality of receiving electrodes to obtain a subtraction signal. The output subtracted signal can be converted to analog and digital. To this end, the sensing unit 11 may include a comparator and an ADC.

[0026] The control unit 13 determines whether or not a touch is made based on the digital signal output from the sensing unit 11. The touch position can be detected.

[0027] In FIG. 2, the sensing unit 11, the driving unit 12, and the control unit 13 are shown separately for the sake of convenience. For example, at least one of the sensing unit 11, the driving unit 12, and the control unit 13 may be Two or more may be embodied in one module, unit, chip, or circuit. The sensor 11, the driver 12, and the controller 13 are implemented as a single module, unit, chip, or circuit. This may also be done.

[0028] As shown in FIG. 1, the touch sensor 10 is a sensor of the display panel 20. The display panel 20 may be mounted on a substrate, or may be mounted in a cell of the display panel 20 in an in-cell manner. In some cases, the touch sensor 10 may be located below the display panel 20. As an example, the touch sensor 10 may be formed on the upper substrate of the display panel 20 and and / or an outer surface of the lower substrate (e.g., the upper surface of the upper substrate or the lower surface of the lower substrate); or , may be formed directly on an internal surface (e.g., the lower surface of the upper substrate or the upper surface of the lower substrate). The touch sensor 10 is coupled to the display panel 20 to form a touch screen panel ( A TSP or touch display can be configured.

[0029] The display panel 20 has a large number of scan lines (or gate lines) and a large number of display lines. Sub-pictures may be placed in the areas where the scan lines and data lines intersect. The cell can be located.

[0030] The display panel 20 includes an active area in which a number of sub-pixels are arranged, and The touch input device may include a non-active area located outside the active area. The display screen can be configured so that the vertical length is longer than the horizontal length. It may have a rectangular shape with an elongated configuration.

[0031] The display controller 25 controls the display panel 20. A gate driving circuit and a data driving circuit for driving various signal lines arranged on the panel 20 , and a display control unit.

[0032] The gate driving circuit is controlled by a display control unit and is connected to a display panel. The display scan signals are output in sequence on the many scan lines arranged, The driving timing of each pixel can be controlled.

[0033] The data driving circuit receives video data from a display control unit and outputs the video data to an The data driving circuit can convert the scan lines into analog data voltages. The data voltage (Vdata) is applied according to the timing when the scan signal is applied via Each sub-pixel expresses the brightness according to the video data. It can be controlled as follows.

[0034] The display control unit supplies various control signals to the gate driving circuit and the data driving circuit. , can control the operation of the gate driving circuit and the data driving circuit.

[0035] The touch sensor 10 includes a plurality of drive electrodes Tx0, Tx1, Tx2, . . . and a plurality of receiving electrodes Rx0, Rx1, Rx2, . . . ,Rx3,...

[0036] A plurality of drive electrodes Tx0, Tx1, Tx2, . . . and a plurality of receive electrodes Rx0, Rx1, Rx2, Rx3, . . . are The plurality of drive electrodes Tx0, Tx1, Tx2, . . . and the plurality of drive electrodes Tx1, Tx2, . . . may be arranged to cross each other. There is a predetermined mutual capacitance between the receiving electrodes Rx0, Rx1, Rx2, Rx3, . . . , particularly at their intersections. When an object comes into contact with or is in close proximity to the surface of the touch input device, Thus, the capacitance can be changed.

[0037] Each of the drive electrodes Tx0, Tx1, Tx2, . . . extends in the first axis direction, and each of the receive electrodes Rx0, Rx1, Rx2, Rx3, . can extend in a second axial direction different from the first axial direction, where the second axial direction is different from the first axial direction. The direction may be perpendicular to the direction of the arrow.

[0038] Each of the plurality of receiving electrodes Rx0, Rx1, Rx2, Rx3, . . . is a pair of receiving electrode parts (Rx0a and Rx0b , Rx1a and Rx1b, Rx2a and Rx2b, Rx3a and Rx3b, ...). Rx1a and Rx1b, Rx2a and Rx2b, Rx3a and Rx3b, ...) are the first receiving electrode units Rx0a, Rx1a, Rx2a, Rx3a , . . . and second receiving electrode portions Rx0b, Rx1b, Rx2b, Rx3b, . . .

[0039] First receiving electrode portions Rx0a, Rx1a, Rx2a, and Rx3a among the plurality of receiving electrodes Rx0, Rx1, Rx2, and Rx3, . . . , ... denote some of the drive electrodes Tx0, Tx2, Tx4, Tx6, ... among the plurality of drive electrodes Tx0, Tx1, Tx2, ... ... may be arranged to form a mutual capacitance cm with the plurality of receiving electrodes Rx0, Rx1, Rx2 , . . . , the second receiving electrode units Rx0b, Rx1b, Rx2b, Rx3b, . . . are connected to the plurality of driving electrodes Tx0, Tx1, Tx2 , . . . so that mutual capacitance is formed with the remaining drive electrodes Tx1, Tx3, Tx5, Tx7, . . . may be placed.

[0040] First receiving electrode portions Rx0a, Rx1a, Rx2a, and Rx3a among the plurality of receiving electrodes Rx0, Rx1, Rx2, and Rx3, . . . , ... denote some of the drive electrodes Tx0, Tx2, Tx4, Tx6, ... among the plurality of drive electrodes Tx0, Tx1, Tx2, ... . . may be arranged adjacent to the remaining drive electrodes Tx1, Tx3, Tx5, Tx7, . . . The first receiving electrodes Rx0a, Rx0b may be arranged so as to be spaced apart by a predetermined distance, without being adjacent to each other. At least one of the electrodes Rx1a, Rx2a, Rx3a, . . . is connected between the drive electrodes Tx1, Tx3, Tx5, Tx7, . . . and the remaining drive electrodes Tx1, Tx3, Tx5, Tx7, . . . The other electrodes may be arranged as described above. The other electrodes may be some of the driving electrodes Tx0, Tx2, Tx4, and Tx6. ,...may be.

[0041] Among the plurality of receiving electrodes Rx0, Rx1, Rx2, . . ., the second receiving electrode portions Rx0b, Rx1b, Rx2b, Rx3b, . . . Among the plurality of drive electrodes Tx0, Tx1, Tx2, . . ., the remaining drive electrodes are Tx1, Tx3, Tx5, Tx7, . . . Some of the drive electrodes Tx0, Tx2, Tx4, Tx6, . . . may be arranged so as to be immediately adjacent to each other. The second receiving electrodes Rx0b, Rx1b, Rx2b, Rx3b, Rx4b, Rx5b, Rx6b, Rx7b, Rx8b, Rx9b, Rx10b, Rx11b, Rx12b, Rx13b, Rx14b, Rx15b, Rx16b, Rx17b, Rx18b, Rx19b, Rx20b, Rx21b, R At least one or more of the driving electrodes Tx0, Tx2, Tx4, Tx6, . . . are present between Rx2b, Rx3b, . . . and some of the driving electrodes Tx0, Tx2, Tx4, Tx6, . . . Other electrodes may be arranged on the remaining drive electrodes Tx1, Tx3, Tx5, Tx7, . . . It's okay to be.

[0042] When a drive signal is applied to some of the drive electrodes Tx0, Tx2, Tx4, Tx6, . . ., the mutual capacitance A first signal is output from the first receiving electrode portions Rx0a, Rx1a, Rx2a, Rx3a, . . . that form a capacitance. The second signals are transmitted from the second receiving electrode portions Rx0b, Rx1b, Rx2b, Rx3b, . . . that do not substantially form mutual capacitance. The touch controller 15 subtracts the second signal from the first signal or and outputs a third signal by differentially amplifying the third signal, and determining the type of the object based on the third signal. The first signal is the mutual capacitance of the object. Information on quantity change, display noise (e.g., zebra noise), and changes due to image changes amount, LGM noise in floating state, cathode retransmission transmission) phenomenon (the larger the resistance of the ELVSS layer (RELVSS) the larger The weaker the GND, the more the high-frequency components of the signal are transmitted through the RX This includes noise caused by the phenomenon where the signal is transmitted to the sensor and added to the main signal. On the other hand, the second signal contains almost no information about the amount of change in mutual capacitance due to the object. However, the remaining noise information (display noise (e.g., zebra noise), image changes) The amount of change caused by the change, LGM noise in the floating state, and cathode retransmission phenomenon Therefore, the sensing unit 11 subtracts the second signal from the first signal. Therefore, the signal input to the control unit 13 does not contain noise information, and the interaction between the objects Only information on the amount of change in capacitance may be included.

[0043] On the other hand, if a drive signal is applied to the remaining drive electrodes Tx1, Tx3, Tx5, Tx7, . . . , A second signal is output from the second receiving electrodes Rx0b, Rx1b, Rx2b, Rx3b, . . . that form mutual capacitance. , the first receiving electrode portions Rx0a, Rx1a, Rx2a, Rx3a, . . . which do not substantially form mutual capacitance with the first receiving electrode portions Rx0a, Rx1a, Rx2a, Rx3a, . . . The touch controller 15 converts the first signal from the output second signal. A third signal can be output by subtracting or differentially amplifying the third signal, and an object can be generated based on the third signal. The second signal can be used to detect the touch position of the object. Since it contains information about the change in mutual capacitance, the third signal is obtained by subtracting the first signal from the second signal. The signal does not contain noise information, only information on the amount of change in mutual capacitance due to the object. Included.

[0044] The plurality of drive electrodes Tx0, Tx1, Tx2, . . . and the plurality of receive electrodes Rx0, Rx1, Rx2, . . . are arranged on the same layer (1 They may be arranged together in a single layer, or in two separate layers. In addition, some of the plurality of driving electrodes Tx0, Tx1, Tx2, ... may be different from the rest. The plurality of receiving electrodes Rx0, Rx1, Rx2, ... may be arranged in a layer, and some of the receiving electrodes may be different from the rest. The plurality of drive electrodes Tx0, Tx1, Tx2, ... and the plurality of receive electrodes Rx0, Rx1 may be arranged on a layer. , Rx2, ... have a diamond pattern, a circular, an oval or a polygonal shape That's fine.

[0045] The plurality of drive electrodes Tx0, Tx1, Tx2, ... and the plurality of receive electrodes Rx0, Rx1, Rx2, ... are formed by a metal mesh. The display panel 20 is made up of a thin film encapsulation (TFE) layer. It may be patterned on top.

[0046] FIG. 3 is a block diagram illustrating a receiving circuit unit 110 according to an example of the touch controller 15 shown in FIG. This is a drawing for reference.

[0047] Referring to FIG. 3, the receiving circuit unit 110 connects the plurality of receiving electrodes Rx0 and Rx1 of the touch sensor 10 shown in FIG. , Rx1, Rx2, Rx3, . . . are electrically connected.

[0048] Each of the plurality of receiving electrodes Rx0, Rx1, Rx2, Rx3, . . . of the touch sensor 10 shown in FIG. , and includes a pair of receiving electrode portions (Rx0a and Rx0b, Rx1a and Rx1b, Rx2a and Rx2b, Rx3a and Rx3b, . . . ).

[0049] The receiving circuit section 110 may include a plurality of differential amplifiers DA0, DA1, DA2, DA3, . . . Each of the differential amplifiers DA0, DA1, DA2, DA3 includes a pair of input terminals. , ... can differentially amplify and output two signals received at the pair of input terminals. .

[0050] The pair of input terminals is a pair of receiving electrodes Rx0, Rx1, Rx2, Rx3, . . . of the touch sensor 10. Corresponding to the receiving electrode part (Rx0a and Rx0b, Rx1a and Rx1b, Rx2a and Rx2b, Rx3a and Rx3b, ...). For example, The pair of input terminals of the 0th differential amplifier DA0 is connected to the pair of receiving electrode portions Rx0a and Rx0b of the 0th receiving electrode Rx0. In this manner, the remaining differential amplifiers DA1, DA2, DA3, ... , are electrically connected to the remaining receiving electrodes Rx1, Rx2, Rx3, . . .

[0051] The signal output to the output terminal of each differential amplifier DA0, DA1, DA2, DA3, ... is a differential signal *(diff It may be a multiple signal or a single signal.

[0052] The receiving circuit section 110 may be included in the sensing section 11 shown in FIG.

[0053] FIG. 4 illustrates another example of a receiving circuitry 110′ of the touch controller 15 shown in FIG. This is a drawing for

[0054] Referring to FIG. 4, the receiving circuit unit 110′ receives a plurality of receiving signals from the touch sensor 10 shown in FIG. The poles Rx0, Rx1, Rx2, Rx3, . . . are electrically connected.

[0055] The receiving circuit section 110' includes a plurality of amplifiers P0a, P0b, P1a, P1b, P2a, P2b, P3a, P3b, . . . The signal processor includes a number of signal processors SP0, SP1, SP2, SP3, . . .

[0056] A pair of receiving electrode portions (Rx0a and Rx0b) of each of the receiving electrodes Rx0, Rx1, Rx2, Rx3, . . . of the touch sensor 10 , Rx1a and Rx1b, Rx2a and Rx2b, Rx3a and Rx3b, ...) each has a pair of amplifiers (P0a and P0b, P1a and P1b, P2a and P2b, P3a and P3b, . . . are electrically connected to the input terminals of the respective transistors.

[0057] Each of the signal processors SP0, SP1, SP2, SP3, . . . is connected to the pair of amplifiers (P0a and P0b, P1a and P1b, P2 a and P2b, P3a and P3b, ...) are electrically connected to the output terminals of the pair of amplifiers (P0a and P0b, Any one of the amplifiers P0a, P1a, P2a, P3a, ... (P1a and P1b, P2a and P2b, P3a and P3b, ...) The positive (+) input terminals of the signal processors SP0, SP1, SP2, SP3, . . . may be connected to the positive (+) input terminals of the signal processors SP0, SP1, SP2, SP3, . . . The amplifiers P0b, P1b, P2b, P3b, ... are connected to the negative (-) input terminals of the signal processors SP0, SP1, SP2, SP3, ... may be linked to

[0058] The receiving circuit unit 110' shown in FIG. 4 includes receiving electrodes Rx0, Rx1, Rx2, Rx3, . . . The signals from the paired receiving electrodes (Rx0a and Rx0b, Rx1a and Rx1b, Rx2a and Rx2b, Rx3a and Rx3b, ...) After receiving the signal from the input terminal in single-ended form, it is passed through an amplifier and signal processing section. This allows differential operation.

[0059] Meanwhile, the receiving circuit unit 110' shown in FIG. 4 includes a pair of receiving electrodes Rx0, Rx1, Rx2, Rx3, . . . Analog signals from the receiving electrodes (Rx0a and Rx0b, Rx1a and Rx1b, Rx2a and Rx2b, Rx3a and Rx3b, ...) is converted to a digital signal and then It may be executed.

[0060] FIG. 5 shows a receiving circuit unit 110'' according to yet another example of the touch controller 15 shown in FIG. 1 is a diagram for explaining the above.

[0061] Referring to FIG. 5, the receiving circuit unit 110″ includes a plurality of receiving circuits for the touch sensor 10 shown in FIG. It is electrically connected to the electrodes Rx0, Rx1, Rx2, Rx3, . . .

[0062] The receiving circuit section 110'' includes a plurality of amplifiers P0, P1, P2, P3, . . . and a plurality of signal processors SP0, SP1 , SP2, SP3,...

[0063] Receiving electrode portions Rx0a, Rx0b, Rx of the plurality of receiving electrodes Rx0, Rx1, Rx2, Rx3, . . . of the touch sensor 10 1a, Rx1b, ... are electrically connected to the input terminals of multiple amplifiers (P0 and P1, P2 and P3, ...) in a one-to-one relationship. For example, the 0th amplifier P0 is connected to the first receiving electrode Rx0a of the 0th receiving electrode Rx0. The amplifier P1 is connected to the second receiving electrode Rx0b of the 0th receiving electrode Rx0, and the second amplifier P2 is connected to the first receiving electrode Rx0b. The third amplifier P3 is connected to the first receiving electrode Rx1a of the first receiving electrode Rx1, and the third amplifier P4 is connected to the second receiving electrode Rx1b of the first receiving electrode Rx1. In this manner, the other receiving electrodes are electrically connected to a plurality of amplifiers.

[0064] The output terminals of the plurality of amplifiers P0, P1, P2, P3, . . . are connected to a plurality of signal processors SP0, SP1, SP2, SP3, ... are electrically connected. Here, the first amplifier, the 0th amplifier P0, and the last amplifier are The remaining amplifiers are electrically connected to the two signal processors. Although not shown in the figure, the first amplifier, the 0th amplifier P0, and the last amplifier are separate signals. Such a separate signal processor may be electrically connected to the output of the 0th amplifier P0. The difference between the signal and the output signal of the last amplifier can be output.

[0065] Each of the signal processors SP0, SP1, SP2, SP3, . . . is connected to two of the plurality of amplifiers P0, P1, P2, P3, . In other words, each of the signal processors SP0, SP1, SP2, and SP3 is electrically connected to the output terminal of the amplifier. , ... can be configured to receive differential signals between the receiving electrode portions. For example, The output terminal of the 0th amplifier P0 is connected to the positive (+) terminal of the 0th signal processor SP0, and the output terminal of the 1st amplifier P0 is connected to the negative (-) terminal. The output terminal of the first amplifier P1 may be connected to the positive (+) terminal of the first signal processor SP1. The negative (-) terminal of the second signal processor SP2 may be connected to the output terminal of the second amplifier P2. The positive (+) terminal of the amplifier P2 is connected to the output terminal of the second amplifier P2, and the negative (-) terminal of the amplifier P3 is connected to the output terminal of the third amplifier P3. The output terminal of the third amplifier P3 may be connected to the positive (+) terminal of the third signal processor SP3, and the negative (+) terminal of the third amplifier P3 may be connected to the negative (+) terminal of the third signal processor SP3. The output terminal of a fourth amplifier (not shown) may be connected to the (-) terminal. Additionally, the remaining amplifiers shown in the drawing may be electrically coupled to the signal processor.

[0066] The receiving circuit unit 110'' shown in FIG. 5 detects water on the touch sensor 10 shown in FIG. In special situations, such as when a metal object such as a coin is located This can prevent touch malfunctions.

[0067] 6(a) and 6(b) show another example of the receiving device of the touch controller 15 shown in FIG. 2. 10 is a diagram illustrating a signal circuit unit 110''', 110''''.

[0068] Referring to FIG. 6(a), the receiving circuit section 110''' includes a pair of receiving electrode sections for each receiving electrode Rx0. The control unit (shown in the figure) includes a switch element SW for electrically shorting or opening Rx0a and Rx0b. When the switch element SW is closed, each received power A pair of receiving electrodes Rx0a and Rx0b of the pole Rx0 are electrically connected to each other. However, a switch element may also be disposed between a pair of receiving electrode portions of other receiving electrodes.

[0069] The receiving circuit unit 110''' is configured such that the switch element SW is controlled to form a pair of receiving The electrodes Rx0a and Rx0b can be electrically connected. This control method is shown in FIG. The touch sensor 10 is driven in a self-sensing mode or in a start mode. Stylus sensing mode for sensing pen signals from the image It can be used to drive the

[0070] There are two methods for driving the touch sensor 10: self-sensing and mutu-sensing. Self-sensing is achieved by applying a drive signal to each electrode. When a sensor is applied to an electrode, it receives a sensing signal from the electrode and senses the change in capacitance of the electrode itself. It is a method to detect whether or not the object is touched and / or the touch position. The mutual capacitance between the driving electrode and the receiving electrode changes depending on the object. The touch controller 15 that controls the touch sensor 10 recognizes the above Use one of two methods to determine whether or not an object is touched and / or the touch position It can also detect whether an object is touched and / or not using both methods. If both methods are used, the touch position can be detected. The two methods can be controlled to be driven independently of each other.

[0071] Referring to FIG. 6(b), the receiving circuit section 110'''' includes a plurality of switch elements SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW24, SW25, SW26, SW27, SW28 Includes W3, SW4, and SW5.

[0072] The first switch element SW1 performs the same function as the switch element SW shown in FIG. 6(a). The first switch element SW1 is connected between the pair of receiving electrodes Rx0a and Rx0b. The element SW1 can be short-circuited or opened under the control of a control unit (not shown).

[0073] The second to fifth switch elements SW2, SW3, SW4, and SW5 are connected to the pair of receiving electrode portions Rx0a of each receiving electrode Rx0. , Rx0b, which receiving electrode portion is connected to the input terminal of an amplifier (not shown) arranged at the rear end? You can control how much of the data is used.

[0074] The second switch element SW2 is connected to one end of the first switch element SW1, and the third switch element SW3 is connected to one end of the first switch element SW1. 1 may be connected to the other end of the switch element SW1.

[0075] The fourth switch element SW4 is connected between the output terminal of the second switch element SW2 and AC ground. The fifth switch element SW5 is connected between the output terminal of the third switch element SW3 and AC ground. That's fine.

[0076] On the other hand, one of the pair of receiving electrodes Rx0a and Rx0b is disposed at the rear end. The second and fifth switch elements are connected to the input terminal of the amplifier (not shown). SW2 and SW5 or the third and fourth switch elements SW3 and SW4 may be omitted.

[0077] The receiving circuit unit 110'''' controls the first switch element SW1 to switch a pair of The receiving electrodes Rx0a and Rx0b can be electrically connected to each other. It can be driven in self-sensing mode or stylus-sensing mode. In addition, by controlling the second to fifth switch elements SW2, SW3, SW4, and SW5, the pair of receiving electrodes Rx0a , Rx0b any one of the receiving electrode parts other electronic elements (e.g., amplifiers, etc.) arranged at the rear end It is possible to control which

[0078] FIG. 7 shows a receiving circuit unit 110'' according to yet another example of the touch controller 15 shown in FIG. 1 is a diagram for explaining '''.

[0079] Referring to FIG. 7, the receiving circuit section 110''''' includes a plurality of switching sections SP0, SP1, SP2 , SP3, . . . , a multiplexer M, and a differential amplifier DA.

[0080] Each switching unit SP0, SP1, SP2, SP3, ... switches the receiving electrodes in response to an external control signal. A pair of receiving electrodes (Rx0a and Rx0b, ...) are electrically connected or disconnected from each other. For example, , a pair of input terminals of the 0th switching unit SP0 are connected to a pair of receiving electrode units Rx0a and Rx0b of the 0th receiving electrode. and one output terminal is electrically connected to one of the multiple input terminals of the multiplexer M. The remaining switching units SP1, SP2, SP3, etc. are connected in the same manner. will be done.

[0081] The multiplexer M is paired with the output terminals of the plurality of switching units SP0, SP1, SP2, SP3, . . . The two input terminals are connected together, and the two output terminals are connected together. are respectively connected to the two input terminals of the differential amplifier DA.

[0082] Such a receiving circuit section 110''''' is used to drive the display panel 20 shown in FIG. Specifically, the touch sensor shown in FIG. The sensor 10 is driven in a pen sensing mode to sense a pen signal generated from a stylus. At this time, a plurality of switching units SP0, SP1, SP2, SP3, ... are connected to a pair of receiving electrode units ( Rx0a and Rx0b, Rx1a and Rx1b, Rx2a and Rx2b, Rx3a and Rx3b, ...) are electrically connected to each other, The multiplexer M receives multiple signals from multiple switching units SP0, SP1, SP2, SP3, ... Two signals from the signals SRx0, SRx1, SRx2, SRx3, ... are output to a differential amplifier DA, and the differential amplifier DA can differentially amplify and output two signals selected by multiplexer M. The differentially amplified signal includes the display noise caused by driving the display panel 20. Since noise is almost completely eliminated, touch malfunctions can be prevented and touch sensitivity can be improved. It can be improved.

[0083] 8 to 17 are diagrams for explaining various embodiments of the touch sensor 10 shown in FIG. 2. be.

[0084] 8 is a plan view of a portion of one embodiment of touch sensor 10 shown in FIG. 2, and FIG. 10 is a plan view of the touch sensor shown in FIG. 8 separated into layers, and FIG. 11 is a plan view of the touch sensor shown in FIG. 10 is a diagram illustrating electrical connections of receiving electrodes;

[0085] Referring to FIGS. 8 to 10, a touch sensor according to an embodiment of the present invention is The display panel may be located on top of the panel or inside the display panel.

[0086] A touch sensor according to an embodiment of the present invention includes a plurality of first electrodes and a plurality of second electrodes. Among the first electrodes and the second electrodes, the electrodes to which the drive signal is applied become the drive electrodes, and the remaining In the following description, the plurality of first electrodes may be the plurality of drive electrodes TX0, TX1, TX2. , TX3, ..., the plurality of second electrodes are a plurality of receiving electrodes RX0, RX1, RX2, RX3, RX4, ... This is explained by:

[0087] The plurality of drive electrodes TX0, TX1, TX2, TX3, . . . are a 0th drive electrode TX0, a 1st drive electrode TX1, a 2nd drive electrode TX2, a 3rd drive electrode TX3, a 4th drive electrode TX4, a 5th drive electrode TX5, a 6th drive electrode TX6, a 7th drive electrode TX7, a 8th drive electrode TX8, a 9th drive electrode TX9 The plurality of drive electrodes TX0, TX1, TX2, TX3 may include a first drive electrode TX1, a second drive electrode TX2, and a third drive electrode TX3. TX3, . . . correspond to the plurality of drive electrodes Tx0, Tx1, Tx2, .

[0088] The plurality of receiving electrodes RX0, RX1, RX2, RX3, RX4, . . . include a 0th receiving electrode Rx0, a 1st receiving electrode RX1, The receiving electrode RX2 may include a second receiving electrode RX3, a third receiving electrode RX4, and a fourth receiving electrode RX5. The transmitting electrodes RX0, RX1, RX2, RX3, RX4, . . . correspond to the plurality of receiving electrodes RX0, RX1, RX2, RX4, . . . shown in FIG. Compatible with X3, RX4, etc.

[0089] The plurality of drive electrodes TX0, TX1, TX2, TX3, . . . are arranged along the second direction (or the vertical direction). Each of the plurality of receiving portions extends along a first direction (or a horizontal direction) perpendicular to the second direction. The receiving electrodes RX0, RX1, RX2, RX3, RX4, ... may be arranged along the first direction. On the other hand, the plurality of drive electrodes TX0, TX1, TX2, TX3, . . . are arranged along the first direction (or the horizontal direction). The plurality of receiving electrodes RX0, RX1, RX2, RX3, RX4, . . . are arranged in the second direction (or the vertical direction). The electrodes may be arranged along the direction of the arrows.

[0090] A plurality of drive electrodes TX0, TX1, TX2, TX3, ... and a plurality of receiving electrodes RX0, RX1, RX2, RX3, RX4, A predetermined capacitance may be formed between... Such capacitance may be It changes when a touch input occurs at or near the relevant point. Detects the change in capacitance from the signal output from poles RX0, RX1, RX2, RX3, RX4, ... By doing so, it is possible to detect whether or not a touch has occurred and to detect a touch input.

[0091] Each of the plurality of drive electrodes TX0, TX1, TX2, TX3, . . . has a rectangular pattern extending in a first direction. A plurality of openings having a shape of a slit or a bar pattern and arranged along a first direction therein. It may have part O.

[0092] One receiving electrode may be disposed within each opening O. The shape of each opening O may be determined by the shape of the receiving electrode disposed therein. For example, as shown in FIG. 8, a plurality of openings O The remaining portions of the openings excluding the openings at the left and right ends may have a diamond shape, The openings located at the side edges may have a triangular shape. The opening O may have a diamond shape. Alternatively, the openings O may have a polygonal, rectangular, It may have a variety of shapes, such as circular or oval.

[0093] Each of the receiving electrodes RX0, RX1, RX2, RX3, RX4, . . . is a plurality of receiving electrode patterns RX0a, RX0b, RX1 a, RX1b, RX2a, RX2b, RX3a, RX3b, RX4a, RX4b and connection patterns P0, P1, P2, P3, P4. Here, a plurality of receiving electrode patterns RX0a, RX0b, RX1a, RX1b, RX2a, RX2b, RX3a, RX3b , RX4a, RX4b, some of the receiving electrode patterns RX0a, RX1a, RX2a, RX3a, RX4a are shown in FIG. The remaining receiving electrode patterns RX 0b, RX1b, RX2b, RX3b, and RX4b correspond to the remaining receiving electrodes Rx0b, Rx1b, Rx2b, and Rx3b shown in FIG. ,... can be accommodated.

[0094] As shown in FIG. 9(a), a plurality of drive electrodes TX0, TX1, TX2, TX3, . . . and a plurality of receiving electrodes The pole patterns RX0a, RX0b, RX1a, RX1b, RX2a, RX2b, RX3a, RX3b, RX4a, and RX4b are on the first layer (f Here, the plurality of drive electrodes TX0, TX1 and TX2 arranged in the first layer may be arranged together. 1, TX2, TX3, ... and multiple receiving electrode patterns RX0a, RX0b, RX1a, RX1b, RX2a, RX2b, RX3a , RX3b, RX4a, and RX4b may be realized by a metal mesh. , multiple connection patterns P0a, P0b, P1a, P1b, P2a, P2b, P3a, P3b, P4a, P4b are in the second layer (sec The second layer may be a layer different from the first layer in FIG. 9(a) and may be a layer Here, the plurality of connection patterns P0a, P0b, P1a, P1b, P2a, P2b, P3 The first layer of FIG. 9(a) may be realized by a metal mesh. b) may be placed on the second layer of the second layer of the first layer, or vice versa.

[0095] The multiple receiving electrode patterns included in each receiving electrode are divided into at least two groups. The receiving electrode patterns of one group can be separated into the receiving electrode patterns of the other group. The electrode patterns are arranged alternately. The receiving electrode patterns of one group are arranged alternately with the receiving electrode patterns of the other groups. The receiving electrode patterns in one group are electrically separated. The receiving electrode pattern is the first receiving electrode pattern, and the receiving electrode patterns in the other group are This may be termed the second receiving electrode pattern.

[0096] The plurality of connection patterns included in each receiving electrode are the first receiving electrode pattern in one group. A first connection pattern electrically connects the electrodes of the first group to the second receiving electrodes of the second group. and a second connection pattern that connects to the

[0097] For example, the 0th receiving electrode Rx0 has a plurality of receiving electrode patterns RX0a and RX0b and a plurality of connecting patterns The plurality of receiving electrode patterns RX0a and RX0b may be arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX0a and the second group of receiving electrode patterns RX0b are arranged in the The first group of receiving electrode patterns RX0a and the second group of receiving electrode patterns RX 0b may be electrically isolated from each other. The 0th connecting pattern P0 is a connecting pattern of the first group of receiving electrode panels. The first connecting pattern P0a electrically connecting the turn RX0a and the receiving electrode pattern RX0 of the second group b may include a second connecting pattern P0b.

[0098] The first receiving electrode RX1 includes a plurality of receiving electrode patterns RX1a and RX1b and a plurality of connecting patterns P1. The plurality of receiving electrode patterns RX1a and RX1b are arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX1a and the second group of receiving electrode patterns RX1b are included. The receiving electrode pattern RX1a of the first group and the receiving electrode pattern RX1b of the second group are mutually The first connecting pattern P1 can electrically separate the first group of receiving electrode patterns. The first connecting pattern P1a electrically connects the receiving electrode patterns RX1a of the second group. b may include a second connecting pattern P1b.

[0099] The second receiving electrode RX2 includes a plurality of receiving electrode patterns RX2a and RX2b and a plurality of connecting patterns P2. The plurality of receiving electrode patterns RX2a and RX2b are arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX2a and the second group of receiving electrode patterns RX2b are included. The receiving electrode pattern RX2a of the first group and the receiving electrode pattern RX2b of the second group are mutually The second connecting pattern P2 can be electrically isolated from the first group of receiving electrode patterns. The first connecting pattern P2a electrically connects the receiving electrode patterns RX2a of the second group. b may include a second connecting pattern P2b.

[0100] The third receiving electrode RX3 includes a plurality of receiving electrode patterns RX3a and RX3b and a plurality of connecting patterns P3. The plurality of receiving electrode patterns RX3a and RX3b are arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX3a and the second group of receiving electrode patterns RX3b are included. The receiving electrode pattern RX3a of the first group and the receiving electrode pattern RX3b of the second group are mutually The third connecting pattern P3 can be electrically isolated from the first group of receiving electrode patterns. The first connecting pattern P3a electrically connects the receiving electrode patterns RX3a of the second group. b may include a second connecting pattern P3b.

[0101] The fourth receiving electrode RX4 includes a plurality of receiving electrode patterns RX4a and RX4b and a plurality of connecting patterns P4. The plurality of receiving electrode patterns RX4a and RX4b are arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX4a and the second group of receiving electrode patterns RX4b are included. The receiving electrode pattern RX4a of the first group and the receiving electrode pattern RX4b of the second group are mutually The fourth connecting pattern P4 can be electrically isolated from the first group of receiving electrode patterns. The first connecting pattern P4a electrically connects the receiving electrode patterns RX4a of the second group. b may include a second connecting pattern P4b.

[0102] Multiple receiving electrode patterns RX0a, RX0b, RX1a, RX1b, RX2a, RX2b, RX3a, RX3b, RX4a, RX 4b are disposed inside the openings O of the drive electrodes TX0, TX1, TX2, TX3, . The receiving electrode patterns are arranged inside one opening O. The shape of each receiving electrode pattern is The shape corresponds to the shape of the corresponding opening.

[0103] In any receiving electrode RX1, the receiving electrode patterns in the first group arranged adjacent to each other are Between the receiving electrode pattern RX1a in the first group and the receiving electrode pattern RX1b in the second group, A part of the drive electrode TX0 immediately adjacent to the periphery of the pattern RX1a and the receiving electrode pattern in the second group The periphery of the ring RX1b is co-located with a part of the drive electrode TX1 immediately adjacent thereto.

[0104] Any drive electrode TX0 is connected to one group of receiving electrode patterns RX0a, RX1a, RX2a, RX3a, and R The receiving electrode patterns RX0b, RX1b, and RX2b of the other groups are arranged immediately adjacent to the periphery of X4a. , RX3b, and RX4b. The other driving electrodes TX1 arranged immediately adjacent to the periphery of the arbitrary driving electrodes TX0 By this, the receiving electrode patterns RX0a, RX1a, RX2a, RX3a, and RX4a of the one group are separated. The parts are arranged so that

[0105] Each of the connection patterns P0a, P0b, P1a, P1b, P2a, P2b, P3a, P3b, P4a, and P4b is a second The conductive vias may have a bar pattern shape extending along the direction of Conductive vias v may be disposed at both ends of each of the interconnect patterns.

[0106] In the 0th receiving electrode Rx0, each of the first connecting patterns P0a is connected to the receiving electrodes of the first group. Two adjacent receiving electrode patterns RX0a are connected to each other through conductive vias v. a second receiving electrode pattern RX0a electrically connected to the first receiving electrode pattern RX0b and disposed between the two adjacent receiving electrode patterns RX0a; The second group is arranged so as to overlap the receiving electrode pattern RX0b below. The connecting patterns P0b are connected to adjacent receiving electrode patterns RX0b of the second group. The two receiving electrode patterns RX0b are electrically connected to each other through a conductive via v. The first group of receiving electrode patterns RX0a is arranged between the two receiving electrode patterns RX0b. The remaining receiving electrodes RX1, RX2, RX3, and RX4 are arranged so as to overlap each other. The connection patterns P1a, P2a, P3a, and P4a and the second connection patterns P1b, P2b, P3b, and P4b are also as previously described. are arranged in the same manner as above.

[0107] In the following, at least one of the plurality of drive electrodes Tx0, Tx1, Tx2, and Tx3 is used for driving. For convenience of explanation, the operation of the first receiving electrode RX1 will be described in detail. The operation of the sensing unit 11 in FIG. 2 will now be described in detail.

[0108] If the driving signals are applied to the driving electrodes Tx0, Tx1, Tx2, and Tx3 in sequence or simultaneously, the first series Two sensing signals are output through the connecting pattern P1. The first signal is output through the first connecting pattern P1a. The first signal is a signal output via the second connecting pattern P1b, and the second signal is a signal output via the second connecting pattern P1b. Therefore, for each of the receiving electrodes RX0, RX1, RX2, RX3, and RX4, first and second signals of two channels are provided. The first and second signals are output simultaneously, and the first and second signals are output as shown in FIG. The signal may be output to the sensing unit 11 of the second sensor.

[0109] The first signal and the second signal are generated by the drive electrodes TX0, TX1, TX2, TX3, ... to which the drive signals are applied. One of them may be the active channel signal (or active receive signal ARX), The remaining one may be a dummy channel signal (or a dummy reception signal DRX). In other words, the receiving electrode pattern RX1a of the first group is driven to the driving electrodes TX0 and / or TX2 on which the receiving electrode pattern RX1a of the first group is arranged. When an active signal is applied, a first signal outputted through the first connecting pattern P1a is an active chip. The second signal output via the second connection pattern P1b becomes a dummy channel signal. On the other hand, the driving electrodes TX1 and / or TX2 on which the receiving electrode patterns RX1b of the second group are arranged are When a drive signal is applied to TX3, the second signal output through the second connection pattern P1b is activated. The first signal output via the first connection pattern P1a becomes a dummy channel signal. This becomes a channel signal.

[0110] For example, as shown in FIG. 8, the object (dotted line) is a first drive electrode TX1 and a first receive electrode TX2. When the first driving electrode TX1 is in proximity to or in contact with the crossing point of the first driving electrode TX2, a driving signal is applied to the first driving electrode TX1. When the voltage is applied, the receiving electrode pattern RX1b belonging to the second group of the first receiving electrode RX1 and the first driving voltage The capacitance (or mutual active capacitance) formed between the pole TX1 and the pole TX2 changes. The second signal containing the capacitance change information is an active channel signal. is output via the second concatenation pattern P1b.

[0111] On the other hand, the first receiving electrode RX1 is formed between the receiving electrode patterns RX1a belonging to the first group. The capacitance (or dummy capacitance) also changes. The first signal including the above is output as a dummy channel signal via the first concatenation pattern P1a. do.

[0112] The sensing unit 11 shown in FIG. 2 outputs the second signal via the second connecting pattern P1b as follows: By subtracting the first signal output via the first connection pattern P1a, The receiving electrode pattern RX1b and the receiving electrode pattern RX1a belonging to the first group are Transmission noise signal, LGM noise signal, and display noise signal It can be completely or largely offset.

[0113] FIG. 11 is a plan view of a portion of another embodiment of the touch sensor 10 shown in FIG. 2, and FIG. 11 is a plan view of the touch sensor shown in FIG. 11 separated into layers, and FIG. 13 is a plan view of the touch sensor shown in FIG. 10 is a diagram illustrating electrical connections between a plurality of receiving electrodes;

[0114] The touch sensor according to another embodiment of the present invention shown in FIGS. 11 to 13 is similar to the touch sensor shown in FIGS. In comparison with the touch sensor according to the embodiment of the present invention, the plurality of receiving electrodes RX0′, RX1′, There are differences between RX2', RX3', and RX4'. In particular, there are differences between the receiving electrodes RX0', RX1', RX2', RX3', and RX4'. The difference is in the structure of the plurality of receiving electrode patterns RX1a' included in the The structure of turn RX1a' will be described in detail, and the remaining configuration will be replaced with the above-mentioned content. .

[0115] A plurality of receiving electrode patterns RX1 included in each of the receiving electrodes RX0', RX1', RX2', RX3', and RX4' a' has an opening O' therein and includes a dummy pattern DX1a placed inside the opening O'. Here, the dummy pattern DX1a may have a shape corresponding to the opening O'.

[0116] The dummy pattern DX1a is a connection pattern P0a, P0b, P1a, P1b, P2a, P2b, P3a, P3b, P4a , is not electrically connected to P4b. The dummy pattern DX1a is electrically floated to maintain the state.

[0117] The operation of the touch sensor according to another embodiment of the present invention shown in FIGS. 11 to 13 is the same as the operation of the touch sensor according to an embodiment of the present invention shown in FIGS. 8 to 10. Therefore, a touch input device including a touch sensor according to another embodiment of the present invention shown in FIGS. 11 to 13 also has the advantage of being able to remove various noises that may occur during touch sensing, such as cathode retrace noise signals, display noise, and LGM noise.

[0118] FIG. 14 is a partial plan view of still another embodiment of the touch sensor 10 shown in FIG. 2, and FIG. 15 is a plan view of the touch sensor shown in FIG. 14 separated by layers.

[0119] The touch sensor according to still another embodiment of the present invention shown in FIGS. 14 to 15 has differences in a plurality of receiving electrodes RX0'', RX1'', RX2'', RX3'', RX4'' compared to the touch sensor according to an embodiment of the present invention shown in FIGS. 8 to 10. In particular, the arrangement structures and forms of the plurality of connection patterns P0', P1', P2', P3’, P4' included in each receiving electrode RX0'', RX1'', RX2'', RX3'', RX4'' are different. Hereinafter, the arrangement structures and forms of each connection pattern P0', P1', P2', P3’, P4' will be described in detail, and the remaining configurations will be replaced with the content described above.

[0120] Each connection pattern P0', P1', P2', P3’, P4' includes first connection patterns P0a’, P1a’, P2a’, It includes P3a', P4a' and second connection patterns P0b', P1b', P2b', P3b', and P4b'.

[0121] Each of the first connection patterns P0a', P1a', P2a', P3a', and P4a' is a combination of two received signals of the first group. Although the polar patterns RX0a, RX1a, RX2a, RX3a, and RX4a are electrically connected, the two receiving polar patterns RX0a, RX1a, RX2a, RX3a, and RX4a are electrically connected. The second group of receiving electrode patterns RX0b, RX1b, RX2b, RX3b, and R are arranged between the electrode patterns. For example, the first connection patterns P0a', P1a', P2a', P At least a part of the receiving electrode patterns RX0b, RX1b, RX3a', P4a' of the second group The receiving electrode patterns RX0b, RX1b, and RX2b of the second group are arranged so as not to overlap with the receiving electrode patterns RX3b, RX4b, and RX4b of the first group. X2b, RX3b, RX4b and the second group of receiving electrode patterns RX0b, RX1b, RX2b, RX3b, RX4b The driving electrodes Tx0, Tx1, Tx2, and Tx3 may be disposed between the driving electrodes Tx0, Tx1, Tx2, and Tx3 disposed adjacent to each other. This portion may be arranged to overlap with the drive electrodes Tx0, Tx1, Tx2, and Tx3.

[0122] Each of the second connection patterns P0b', P1b', P2b', P3b', and P4b' is a combination of two received signals of the second group. Although the polar patterns RX0b, RX1b, RX2b, RX3b, and RX4b are electrically connected, the two receiving polar patterns RX0b, RX1b, RX2b, RX3b, and RX4b are electrically connected. The first group of receiving electrode patterns RX0a, RX1a, RX2a, RX3a, and R are arranged between the electrode patterns. For example, the second connection patterns P0b', P1b', P2b', and P At least a part of the receiving electrode patterns RX0a, RX1a, RX3b', and P4b' of the first group The receiving electrode patterns RX0a, RX1a, RX2a, RX3a, RX4a of the first group are arranged so as not to overlap with each other. X2a, RX3a, RX4a and the first group of receiving electrode patterns RX0a, RX1a, RX2a, RX3a, RX4a The driving electrodes Tx0, Tx1, Tx2, and Tx3 may be disposed between the driving electrodes Tx0, Tx1, Tx2, and Tx3 disposed adjacent to each other. This portion may be arranged to overlap with the drive electrodes Tx0, Tx1, Tx2, and Tx3.

[0123] The touch sensor according to another embodiment of the present invention is shown in FIGS. Compared with the touch sensor according to the embodiment of the present invention, the first connecting pattern and the second group of receiving Between the receiving electrode patterns or between the second connecting pattern and the receiving electrode patterns of the first group This has the advantage of reducing the capacitance value.

[0124] Meanwhile, although not shown in a separate drawing, the dummy pattern DX1a shown in FIGS. 12 and 13 is The same may also be applied to touch sensors according to other embodiments of the present invention.

[0125] FIG. 16 is a plan view of a portion of yet another embodiment of touch sensor 10 shown in FIG. FIG. 17 is a plan view of the touch sensor shown in FIG. 16 separated into layers.

[0126] The touch sensor according to still another embodiment of the present invention shown in FIGS. 16 and 17 is similar to the touch sensor shown in FIGS. 8 to 10. 1. In comparison with the touch sensor according to an embodiment of the present invention shown in FIG. There are differences between RX1', RX2', and RX3'. In particular, each receiving electrode RX0', RX1' Multiple receiving electrode patterns RX0a-1, RX0a-2, RX0b-1 included in RX2', RX3' ,RX0b-2,RX1a-1,RX1a-2,RX1b-1,RX1b-2,RX2a-1,RX2a-2,RX2b-1,RX2b-2,RX3a-1 , RX3a-2, RX3b-1, RX3b-2 and the structure of multiple connection patterns P0'', P1'', P2'', P3'' The receiving electrode patterns RX0a-1, RX0a-2, RX0b-1, RX0b-2, RX1a-1,RX1a-2,RX1b-1,RX1b-2,RX2a-1,RX2a-2,RX2b-1,RX2b-2,RX3a-1,RX3a-2, The structure and arrangement of RX3b-1, RX3b-2 and the connection patterns P0'', P1'', P2'', and P3'' are shown in detail. The remaining components will be replaced with those previously described.

[0127] Each receiving electrode RX0''', RX1''', RX2''', RX3''' has a plurality of receiving electrode patterns RX 0a-1,RX0a-2,RX0b-1,RX0b-2,RX1a-1,RX1a-2,RX1b-1,RX1b-2,RX2a-1,RX2a-2,RX 2b-1, RX2b-2, RX3a-1, RX3a-2, RX3b-1, and RX3b-2 are alternately arranged one by one along the second direction. The first group of arranged receiving electrode patterns RX0a-1, RX0a-2, RX1a-1, RX1a-2, RX2a-1, and RX2a-2 a-2, RX3a-1, RX3a-2 and the second group of receiving electrode patterns RX0b-1, RX0b-2, RX1b-1, RX1b-2 , RX2b-1, RX2b-2, RX3b-1, RX3b-2. The first group of receiving electrode patterns RX0a-1, RX0 a-2, RX1a-1, RX1a-2, RX2a-1, RX2a-2, RX3a-1, RX3a-2 and the second group of receiving electrode patterns RX0b-1, RX0b-2, RX1b-1, RX1b-2, RX2b-1, RX2b-2, RX3b-1, and RX3b-2 are electrically can be separated into

[0128] First group receiving electrode patterns RX0a-1, RX0a-2, RX1a-1, RX1a-2, RX2a-1, RX2a-2, R The first receiving electrode patterns RX0a-1, RX1a-1, RX2a-1, and RX3a-2 correspond to the second receiving electrode patterns RX0a-1, RX1a-1, RX2a-1, and RX3a-1, respectively. 2 receiving electrode patterns RX0a-2, RX1a-2, RX2a-2, and RX3a-2. First receiving electrode pattern RX0a-1 , RX1a-1, RX2a-1, RX3a-1 and the second receiving electrode patterns RX0a-2, RX1a-2, RX2a-2, RX3a-2 are, In the drive electrodes TX0 and TX2, two openings O are arranged adjacent to each other in the first direction. Among the plurality of openings O of each of the drive electrodes Tx0, Tx1, Tx2, and Tx3, the openings located at both ends are In the opening, one first or second receiving electrode pattern is arranged, and in the remaining opening, a plurality of The first of the receiving electrodes RX0''', RX1''', RX2''', and RX3''' The second receiving electrode pattern of the group and the first receiving electrode pattern of the other receiving electrode The first receiving electrode patterns of the second receiving electrode patterns are arranged together but spaced apart from each other. To be placed.

[0129] Each of the connection patterns P0'', P1'', P2'', and P3'' corresponds to the first group of receiving electrode patterns R X0a-1, RX0a-2, RX1a-1, RX1a-2, RX2a-1, RX2a-2, RX3a-1, and RX3a-2 are electrically connected. The first connecting patterns P0a'', P1a'', P2a'', P3a'', and the second group of receiving electrode patterns RX0b-1, RX0b-2, RX1b-1, RX1b-2, RX2b-1, RX2b-2, RX3b-1, and RX3b-2 are electrically connected. The second connection patterns P0b'', P1b'', P2b'', and P3b'' are included.

[0130] Each of the first connection patterns P0a'', P1a'', P2a'', P3a'' and the second connection pattern P0 b'', P1b'', P2b'', and P3b'' are two adjacent receiving electrode panels for each group. Constructed and arranged to connect turns in the shortest distance. Connection patterns P0a'', P1a'', P2a'', P3a'' and second connection patterns P0b'', P1b'', P P2b'' and P3b'' are two adjacent receiving electrode patterns of any one group. One end of the receiving electrode pattern is connected to one side of the lower end of one of the receiving electrode patterns. The other end may be connected to one side of the upper end of the receiving electrode pattern. The remaining portion extends in the second direction, and the one receiving electrode pattern Another group of receiving electrodes arranged between the receiving electrode pattern and the other remaining receiving electrode pattern. Arrange the pattern so that the largest possible cross-sectional area overlaps the opening O of the drive electrode without overlapping the pattern. will be done.

[0131] In addition, each of the first connection patterns P0a'', P1a'', P2a'', and P3a'' is a first group. The first receiving electrode pattern and the second receiving electrode pattern of the receiving electrode of the chip are electrically connected. Further including a receiving concatenation pattern, each of the second concatenation patterns P0b'', P1b'', and P2b'' , P3b'' is the first receiving electrode pattern and the second receiving electrode pattern of the second group The receiver further includes a receiving connection pattern for electrically connecting the lines.

[0132] The touch sensor according to another embodiment of the present invention is shown in FIGS. Compared with the touch sensor according to the embodiment of the present invention, the first connecting pattern and the second group of receiving Between the receiving electrode patterns or between the second connecting pattern and the receiving electrode patterns of the first group The advantage is that the capacitance value can be reduced, and the resistance value of each connection pattern can also be reduced. There is.

[0133] FIG. 18 is a plan view of a portion of yet another embodiment of touch sensor 10 shown in FIG.

[0134] The touch sensor according to still another embodiment of the present invention shown in FIG. 18 includes a plurality of driving electrodes Tx 0 and a plurality of receiving electrodes Rx0.

[0135] Each drive electrode Tx0 includes diamond-shaped pattern portions arranged in one direction, A connecting pattern that connects two adjacent pattern portions of the pattern portions to each other. Includes parts.

[0136] Each receiving electrode Rx0 has a first electrode portion Rx0a and a second electrode portion Rx0b arranged in a direction different from the one direction. The first electrode portion Rx0a and the second electrode portion Rx0b may have a triangular shape. One first electrode portion Rx0a and one second electrode portion Rx0b arranged in a diamond shape as a whole It may have a shape.

[0137] The first electrode portion Rx0a is disposed so as to be relatively closer to the driving electrode Tx0 than the second electrode portion Rx0b. The second electrode portion Rx0b is located closer to the other driving electrodes than the first electrode portion Rx0a. are arranged as follows.

[0138] The first electrode portion Rx0a may be electrically connected via a plurality of conductive traces. Rx0b may also be electrically coupled via multiple conductive traces.

[0139] FIG. 19 is a schematic diagram of a touch input device according to another embodiment of the present invention.

[0140] Referring to FIG. 19, a touch input device 1′ according to another embodiment of the present invention includes a touch sensor 1 0', a display panel 20, a touch controller 15 for controlling the touch sensor 10; and a display controller 25 for controlling the display panel 20. Here, the remaining configuration except for the touch sensor 10' is the same as the touch input device 1 shown in FIG. Since they are identical, the touch sensor 10' will be described in detail below.

[0141] The touch sensor 10′ includes a plurality of drive electrodes Tx0, Tx1, Tx2, . . . and a plurality of receiving electrodes Rx0, Rx1, Rx2, . Includes x2, Rx3, ….

[0142] A plurality of drive electrodes Tx0, Tx1, Tx2, . . . and a plurality of receive electrodes Rx0, Rx1, Rx2, Rx3, . . . are The plurality of drive electrodes Tx0, Tx1, Tx2, . . . and the plurality of drive electrodes Tx1, Tx2, . . . may be arranged to cross each other. There is a predetermined mutual capacitance between the receiving electrodes Rx0, Rx1, Rx2, Rx3, ..., especially at their intersections. The static image may be generated by an object in contact with or in close proximity to the surface of the touch input device. The capacitance can vary.

[0143] Each of the drive electrodes Tx0, Tx1, Tx2, . . . extends in the first axis direction, and each of the receive electrodes Rx0, Rx1, Rx2, Rx3, . can extend in a second axial direction different from the first axial direction, where the second axial direction is different from the first axial direction. It may be in a vertical direction.

[0144] Each of the plurality of drive electrodes TX0, TX1, TX2, TX3, . . . is made up of a pair of drive electrode portions (Tx0a and Tx0b , Tx1a and Tx1b, Tx2a and Tx2b, Tx3a and Tx3b, ...). Tx1a and Tx1b, Tx2a and Tx2b, Tx3a and Tx3b, ...) are the first driving electrode units Tx0a, Tx1a, Tx2a, Tx3a , . . . and second drive electrode portions Tx0b, Tx1b, Tx2b, Tx3b, . . .

[0145] First drive electrode portions Tx0a, Tx1a, Tx2a, and Tx3a among the plurality of drive electrodes TX0, TX1, TX2, TX3, . . . , ... denote some of the receiving electrodes Rx0, Rx2, Rx4, Rx6 among the plurality of receiving electrodes Rx0, Rx1, Rx2, ... , . . . and the plurality of drive electrodes TX0, TX1, TX 2, TX3, . . . , the second driving electrode portions Tx0b, Tx1b, Tx2b, Tx3b, . . . are connected to a plurality of receiving electrodes Rx0, Rx 1, Rx2, ... so that mutual capacitance is formed with the remaining receiving electrodes Rx1, Rx3, Rx5, Rx7, ... The electrodes may be arranged as follows.

[0146] First drive electrode portions Tx0a, Tx1a, Tx2a, and Tx3a among the plurality of drive electrodes TX0, TX1, TX2, TX3, . . . , ... denote some of the receiving electrodes Rx0, Rx2, Rx4, Rx6 among the plurality of receiving electrodes Rx0, Rx1, Rx2, ... , . . . may be arranged immediately adjacent to the remaining receiving electrodes Rx1, Rx3, Rx5, Rx7, . . . The first driving electrode portions Tx0a may be arranged at a predetermined distance apart, rather than being adjacent to each other. , Tx1a, Tx2a, Tx3a, . . . and the remaining receiving electrodes Rx1, Rx3, Rx5, Rx7, . . . One or more other electrodes may be arranged. The other electrodes may include some of the receiving electrodes Rx0, Rx2, Rx4, It may be Rx6,...

[0147] Among the plurality of drive electrodes Tx0, Tx1, Tx2, . . ., the second drive electrode portions Tx0b, Tx1b, Tx2b, Tx3b, . . . Among the plurality of receiving electrodes Rx0, Rx1, Rx2, . . ., the remaining receiving electrodes are Rx1, Rx3, Rx5, Rx7, . . . Some of the receiving electrodes Rx0, Rx2, Rx4, Rx6, . . . may be arranged adjacent to each other. The second driving electrodes Tx0b, Tx1b, T At least one or more electrodes Tx2b, Tx3b, ... and some of the receiving electrodes Rx0, Rx2, Rx4, Rx6, ... Other electrodes may be arranged to correspond to the remaining receiving electrodes Rx1, Rx3, Rx5, Rx7, ... It's okay to be.

[0148] A predetermined drive signal may be input to each of the drive electrodes TX0, TX1, TX2, TX3, . . . The first drive electrode portions Tx0a, Tx1a, Tx2a, Tx3a, . . . of the drive electrodes TX0, TX1, TX2, TX3, . A second drive signal may be applied to the second drive electrode portions Tx0b, Tx1b, Tx2b, Tx3b, . . . The first and second drive signals may be applied simultaneously or at different times. The second drive signal may be a 180 degree phase shifted version of the first drive signal.

[0149] The first drive signal and the second drive signal are simultaneously applied to the first drive electrode portion Tx0a and the second drive electrode portion Tx0b of any drive electrode Tx0. When applied to the electrode portion Tx0b, a predetermined signal is transmitted from any receiving electrode Rx0 that intersects with the driving electrode Tx0. The signal includes a first capacitance between the first driving electrode unit Tx0a and the receiving electrode Rx0. information, and a capacitance between the second driving electrode unit Tx0b and the receiving electrode Rx0 based on second capacitance information. The capacitance information includes information obtained by subtracting the second capacitance information from the first capacitance information. This information may be:

[0150] The touch controller 15 receives signals output from a plurality of receiving electrodes Rx0, Rx1, Rx2, Rx3, . . . Based on this, it is possible to determine whether or not an object has been touched and / or the touch position.

[0151] According to the touch input device 1' shown in FIG. 19, the display is driven by the touch sensor 10'. This can prevent flicker from occurring in the display panel 20, and shorten the driving time. Here, the flicker can be generated by the driving signal applied to the driving electrode of the touch sensor 10′. This electrically affects the display panel, causing a part of the display screen to flash rapidly. This phenomenon is described in detail with reference to FIGS. 20 and 21.

[0152] FIG. 20(a) shows the multi-drive operation for each of the four drive electrodes in the touch input device shown in FIG. 20(b) is a graph showing the multi-drive operation of FIG. 20(a). The driving signals (or , driving code).

[0153] As shown in (a) of FIG. 20, four drive electrodes Tx0 and Tx19 among the 20 drive electrodes Tx0 to Tx19 are During any time interval (0 to T1) in Tx1, Tx2, and Tx3, the drive signal (Drive signal) shown in (b) of FIG. 20 is applied. When two drive signals are applied at the same time, the total drive sum is 2. If the drive voltage applied to each drive electrode is, for example, 10 [V], then the voltage is 20, which corresponds to 2*10 [V]. The overall driving voltage [V] affects the display panel, causing flickering on the display screen. Furthermore, the more the number of simultaneously driven driving electrodes is greater than four, the more likely it is that The total drive voltage becomes larger because the total drive sum of the drive signals becomes larger. This can result in excessive flicker on the display screen.

[0154] On the other hand, in the touch input device shown in FIG. 19, the touch controller 15 has a plurality of drive electrodes Tx 0, Tx1, Tx2, ... or to apply the drive signal to all the drive electrodes simultaneously. Even if the display panel is controlled to the above level, the flicker problem described above does not occur. This will be specifically described with reference to FIG.

[0155] FIG. 21(a) shows the touch input device shown in FIG. 19 in which all the driving electrodes are multi-driving. The graph in Figure 21(b) shows the multi-driving state of Figure 21(a). The drive signals (or This is an example of a drive code.

[0156] As shown in FIG. 21(a), all of the drive electrodes Tx0, Tx1, Tx2, . . . of the touch sensor 10′ are When the driving signals shown in FIG. 21(b) are simultaneously applied during a predetermined time period (0 to T1), In this case, the total sum of the drive signals is always "0". , Tx1a, Tx2a, Tx3a, . . . and the remaining drive signals Tx0b, Tx1b, Tx The drive signals applied simultaneously to Tx2b, Tx3b, ... are the same in magnitude but differ in phase by 180°. This is because the total drive signal (Drive sum) becomes 0. Therefore, the display panel The advantage is that no flicker occurs on the display screen when it is driven.

[0157] Also, as shown in FIG. 21(a), the touch input device shown in FIG. The controller 15 simultaneously drives all or four or more of the plurality of drive electrodes Tx0, Tx1, Tx2, ... This reduces the mutual drive time to 1 / 5 compared to the graph in Figure 20(a). Additionally, it reduces the turn-on time of the analog front end (AFE). This can reduce the power consumption of the touch input device.

[0158] In addition, when the touch input device 1' is in the LGM state, noise due to the LGM is eliminated. The signal can also be removed.

[0159] 22(a) and (b) show a driving circuit of an example of the touch controller 15 shown in FIG. 10 is a diagram illustrating a portion 130'.

[0160] Referring to (a) of FIG. 22, the driving circuit unit 130′ includes a pair of driving electrode units Tx0a of each driving electrode Tx0. , Tx0b includes a switch element SW for electrically shorting or opening Tx0b. When the switch element SW is closed, each drive electrode Tx A pair of driving electrodes Tx0a and Tx0b of the driving electrode unit 10 are electrically connected to each other. However, a switch element may also be disposed between a pair of drive electrode portions of other drive electrodes.

[0161] In the driving circuit unit 130', the switch element SW is controlled to turn on a pair of driving electrodes The units Tx0a and Tx0b can be electrically connected. Such a control method is shown in FIG. The touch sensor 10' is driven in self-sensing mode, and the pen signal from the stylus is It can be used to activate the stylus sensing mode to sense the signal. .

[0162] Referring to FIG. 22(b), the drive circuit unit 130'' includes a plurality of switch elements SW1, SW2, SW3, S Includes W4 and SW5.

[0163] The first switch element SW1 performs the same function as the switch element SW shown in FIG. 22(a). The first switch element SW1 is connected between the pair of driving electrode parts Tx0a and Tx0b. The switch SW1 may be short-circuited or opened under the control of a control unit (not shown).

[0164] The second to fifth switch elements SW2, SW3, SW4, and SW5 are connected to the pair of drive electrode portions Tx0a of each drive electrode Tx0. , Tx0b, it is possible to control which of the driving electrode parts is selected.

[0165] The second switch element SW2 is connected to one end of the first switch element SW1, and the third switch element SW3 is , may be connected to the other end of the first switch element SW1.

[0166] The fourth switch element SW4 is connected between the output terminal of the second switch element SW2 and AC ground. The switch device SW5 may be coupled between the output terminal of the third switch device SW3 and AC ground.

[0167] On the other hand, depending on which drive electrode part is selected from the pair of drive electrodes (Tx0a, Tx0b), Therefore, the second and fifth switch elements SW2 and SW5 or the third and fourth switch elements SW3 and SW4 are omitted. It is okay to do so.

[0168] The driving circuit unit 130'' controls the first switch element SW1 to switch a pair of driving currents. The electrodes Tx0a and Tx0b can be electrically connected to each other, and the touch sensor 10' shown in FIG. It can be operated in self-sensing mode or stylus-sensing mode. By controlling the second to fifth switch elements SW2, SW3, SW4, and SW5, a pair of drive electrode portions Tx0a and Tx 0b, it is possible to control which driving electrode part is selected and connected to other electronic elements. Cut.

[0169] FIG. 23 illustrates another example of a driving circuit unit 130''' for the touch controller 15 shown in FIG. 1 is a diagram for explanation.

[0170] Referring to FIG. 23, the driving circuit unit 130''' is configured to drive the touch sensor 10' in a self-sensing mode. When driving in the pen sensing mode or the pen sensing mode, multiple driving voltages are used. The poles Tx0, Tx1, Tx2, . . . can perform the function of outputting a predetermined signal.

[0171] Such a driving circuit unit 130''' includes a plurality of switching units SP0, SP1, SP2, SP3, . . . It may include a multiplexer M and a differential amplifier DA.

[0172] Each switching section SP0 electrically connects a pair of drive electrode sections Tx0a and Tx0b of each drive electrode to each other. The pair of input terminals of each signal processor SP0 are electrically connected to the pair of driving terminals. The electrodes Tx0a and Tx0b are electrically connected to one output terminal, which is connected to multiple input terminals of the multiplexer M. The remaining switching units SP1, SP2, SP3, ... are connected to the input terminal of one of the remaining switching units SP1, SP2, SP3, ... are also linked in the same way.

[0173] The multiplexer M has a one-to-one correspondence with the output terminals of the multiple switching units SP0, SP1, SP2, SP3, ... and at least two output terminals. , are respectively connected to the two input terminals of the differential amplifier DA.

[0174] Such a driving circuit unit 130''' drives the display panel 20 shown in FIG. Specifically, the touch sensor shown in FIG. 10' operates in a pen sensing mode to sense a pen signal generated by a stylus. At this time, a plurality of switching units SP0, SP1, SP2, SP3, ... are connected to a pair of driving electrode units ( Tx0a and Tx0b, Tx1a and Tx1b, Tx2a and Tx2b, Tx3a and Tx3b, ...) are electrically connected to each other, A multiplexer M receives a plurality of signals STx input from a plurality of signal processors SP0, SP1, SP2, SP3, . . . Two signals from STx0, STx1, STx2, STx3, ... are output to the differential amplifier DA, and the differential amplifier DA The two signals selected by the multiplexer M can be differentially amplified and output. The differentially amplified signal contains display noise caused by driving the display panel 20. As most of the surface has been removed, it is possible to prevent touch malfunctions and improve touch sensitivity. It can be done.

[0175] FIG. 24 shows a driving circuit unit 130' according to yet another example of the touch controller 15 shown in FIG. 1 is a diagram for explaining '''.

[0176] Referring to FIG. 24, the driving circuit unit 130'''' includes a driving driver D and a switching element SW. The driver D amplifies the drive signal input to the input terminal and outputs it. The output terminal of the driver D is connected to the first driving electrode portion Tx0a of each driving electrode.

[0177] The switch element SW has one end connected to the output terminal of the driver D, and the other end connected to the output terminal of each drive electrode. The switch element SW is connected to the second driving electrode unit Tx0b. It can be closed or opened.

[0178] Such a driving circuit unit 130'''' is used when the touch sensor 10' shown in FIG. 19 is self-sensing. It can be driven in sync mode or in pen mode to drive a stylus. It may be used occasionally.

[0179] Meanwhile, although not shown in a separate drawing, the driving circuit uses a multiplexer (MUX). In this case, the driving driver is It may be an inverter type logic circuit, but it is not It may be in the form of a buffer using an analog amplifier. .

[0180] FIG. 25 shows a driving circuit unit 130' according to yet another example of the touch controller 15 shown in FIG. 1 is a diagram for explaining " ".

[0181] The drive circuit unit 130'''''' includes a driver D, a plurality of switch elements SW1, SW2, SW3, and Includes receive analog front end Rx AFE.

[0182] The driver D amplifies and outputs a drive signal input to the input terminal. The output terminal is connected to the first driving electrode portion Tx0a of each driving electrode.

[0183] The first switch element SW1 has one end connected to the output terminal of the driver D and the other end connected to each of the drive voltages. The second driving electrode portion Tx0b is connected to the second driving electrode portion Tx0a.

[0184] The first switch element SW1 is closed or opened by the touch controller 15. This can be done.

[0185] The second switch element SW2 is connected between the driving driver D and the first driving electrode unit Tx0a. When turned on, the driving driver D and the first driving electrode unit Tx0a are electrically connected, and when turned off, In this case, the driver D and the first drive electrode unit Tx0a are electrically separated from each other.

[0186] The third switch element SW3 is a switch between the receiving analog front end Rx AFE and the first drive electrode unit Tx0a. When turned on, it connects the receiving analog front end (Rx AFE) and the first driving voltage When turned off, the receiving analog front end (Rx AFE) and the output terminal (Tx0a) are electrically connected. It electrically isolates the first drive electrode portion Tx0a from the first drive electrode portion Tx0b.

[0187] The touch controller 15 performs self-sensing using each drive electrode of the touch sensor. If so, the touch controller 15 turns on the first switch element SW1 to The second switch element SW2 can electrically connect the second driving electrode portion Tx0a and the second driving electrode portion Tx0b. By turning it on, the driving driver D and the first driving electrode unit Tx0a can be electrically connected. Then, the third switch element SW3 can be turned off. The self-sensing driving signal amplified and output by the driving driver D is input to the first driving electrode unit Tx0a and the second driving electrode unit Tx0b can be applied simultaneously.

[0188] The touch controller 15 uses each drive electrode of the touch sensor to detect the light emitted from the stylus pen. When performing stylus sensing, which senses the pen signal transmitted by the touch controller, The driver 15 turns on the first switch element SW1, and the first drive electrode portion Tx0a and the second drive electrode portion Tx0b The third switch element SW3 is turned on to electrically connect the receiving analog The front end Rx AFE and the first driving electrode unit Tx0a may be electrically connected to each other. By this control, the first switch element SW2 can be turned off. The pen signal received via the driving electrode unit Tx0a and the second driving electrode unit Tx0b is input to the receiving analog front The signal can be input to the front-end Rx AFE.

[0189] Meanwhile, although not shown in a separate drawing, in addition to the plurality of switch elements SW1, SW2, and SW3, The additional switch elements shown in can also be driven together. A multiplexer M shown in Figure 23 is added between W3 and the receiving analog front end Rx AFE. may be additionally arranged.

[0190] FIG. 26 is a plan view of a portion of one embodiment of touch sensor 10' shown in FIG.

[0191] One embodiment of the touch sensor 10' shown in FIG. 26 is similar to one embodiment of the touch sensor 10 shown in FIG. The structure of the electrodes is the same as that of the embodiment, but the drive electrodes TX0, TX1, The receiving electrodes RX0, RX1, RX2, and RX3 that output the receiving signal are configured in reverse to TX2, TX3, and TX4. The difference is that there are

[0192] Referring to FIG. 26, the touch controller 15 shown in FIG. 19 includes a plurality of drive electrodes TX0, TX1 , TX2, TX3, TX4, . . . are connected to each other in a pattern P0, P1, P2, P3, P4, . . . . Here, the second connection pattern P0 of each connection pattern P0 can be controlled to be applied. The driving signal applied to the first connecting pattern P0b has a phase opposite to that of the driving signal applied to the first connecting pattern P0a by 180 degrees. This is the inverted drive signal.

[0193] FIG. 27 is a plan view of a portion of another embodiment of touch sensor 10' shown in FIG.

[0194] Another embodiment of the touch sensor 10' shown in FIG. 27 is similar to the touch sensor 10 shown in FIG. The structure of the electrodes is the same as in the other embodiments, but the driving electrodes to which the driving signal is applied and the receiving electrodes are The difference is that the receiving electrodes from which the signal is output are configured in reverse.

[0195] Referring to FIG. 27, the touch controller 15 shown in FIG. 19 includes a plurality of drive electrodes TX0′, TX TX1', TX2', TX3', TX4', ... are connected to the connection patterns P0, P1, P2, P3, P4, ... simultaneously. Here, the second connection pattern of each connection pattern P0 can be controlled so that a signal is applied. The driving signal applied to the first connecting pattern P0b has a phase difference of 180° with the driving signal applied to the first connecting pattern P0a. This is an inverted drive signal that is inverted once.

[0196] FIG. 28 is a plan view of a portion of yet another embodiment of touch sensor 10' shown in FIG. .

[0197] Yet another embodiment of the touch sensor 10' shown in FIG. 28 is similar to the touch sensor shown in FIG. The structure of the electrodes is the same as that of the other embodiment of the sensor 10, but the drive signal is applied to the drive The difference is that the active electrode and the receiving electrode from which the received signal is output are configured in reverse.

[0198] Referring to FIG. 28, the touch controller 15 shown in FIG. 19 includes a plurality of drive electrodes TX0'',T X1'', TX2'', TX3'', TX4'', ... are simultaneously assigned to the connection patterns P0', P1', P2', P3', P4', ... Here, it is possible to control the application of a constant drive signal to each of the connection patterns P0′. The driving signal applied to the second connecting pattern P0b is a signal having a magnitude equal to or larger than the driving signal applied to the first connecting pattern P0a. The phase of the signal is inverted by 180 degrees.

[0199] FIG. 29 is a plan view of a portion of yet another embodiment of touch sensor 10' shown in FIG.

[0200] Yet another embodiment of the touch sensor 10' shown in FIG. 29 is similar to the touch sensor shown in FIG. The structure of the electrodes is the same as that of the other embodiment of the sensor 10, but the drive signal is applied to the drive The difference is that the active electrode and the receiving electrode from which the received signal is output are configured in reverse.

[0201] Referring to FIG. 29, the touch controller 15 shown in FIG. 19 includes a plurality of drive electrodes TX0′″. TX1''', TX2''', TX3''', ... are simultaneously connected to the predetermined connection patterns P0'', P1'', P2'', P3'', ... Here, the second connection pattern P0″ can be controlled so that a driving signal is applied. The driving signal applied to the connecting pattern P0b is different from the driving signal applied to the first connecting pattern P0a. This is an inverted drive signal with a phase that is inverted by 180 degrees.

[0202] FIG. 30 is a plan view of a portion of yet another embodiment of touch sensor 10' shown in FIG. .

[0203] Yet another embodiment of the touch sensor shown in FIG. 30 is similar to the touch sensor shown in FIG. Although the structure of the electrodes is the same as that of the other embodiment, the drive electrodes to which the drive signal is applied are The difference is that the electrodes from which the received signal is output are opposite in configuration.

[0204] Referring to FIG. 30, the touch controller 15 shown in FIG. 19 is configured to A predetermined drive signal is controlled to be applied simultaneously to the drive electrode portion Tx0a and the second drive electrode portion Tx0b. Here, the drive signal applied to the first drive electrode unit Tx0a can be This is an inverted drive signal whose phase is inverted by 180 degrees from the drive signal applied to 0b.

[0205] The touch controller 15 shown in FIG. 19 may be any one of the touch sensors shown in FIGS. 26 to 30. or the change in mutual capacitance from multiple receiving electrodes RX0, RX1, RX2, RX3, ... of one touch sensor receiving a received signal having information of a quantity; and outputting a differential signal from the received signal; Then, the differential signals are integrated and output from a plurality of receiving electrodes RX0, RX1, RX2, RX3, . The received signal can be restored again, and the code of the restored received signal can be The touch position of the object is determined based on the processed information on the change in mutual capacitance. It is possible.

[0206] FIG. 31 is a diagram illustrating a first driving method of the touch input devices 1 and 1′ shown in FIGS. 2 and 19. This is a drawing.

[0207] The first driving method shown in FIG. 31 is a method for driving the touch sensor 1 in consideration of driving the display panel 20. 2 and 19. May be accomplished in 15.

[0208] The first driving method synchronizes the touch sensors 10 and 10' with at least one horizontal synchronization signal H-sync. However, after the horizontal synchronization signal starts to be applied to the display panel 20, The method is a method of driving the touch sensors 10 and 10' for a predetermined time period. The time interval is from the time when the horizontal synchronization signal starts to be applied to the display panel 20 to the time when the next horizontal synchronization signal starts to be applied to the display panel 20. This may be during the time immediately before the flat synchronization signal is applied to the display panel 20 .

[0209] Here, the horizontal synchronization signal H-sync is a signal that reflects one scan line of the display panel 20. The meaning of driving the touch sensors 10 and 10' is Touch controller 15 applies drive signals to selected drive electrodes of touch sensors 10, 10'. This means that the sensing signal is received from the receiving electrodes.

[0210] The first driving method is to drive the touch sensors 10 and 10' with at least one horizontal synchronization signal Hs ync, but the horizontal synchronization signal is applied to the display panel 20. After that, the touch sensors 10 and 10' are driven for a predetermined time period. While the horizontal synchronization signal H-sync is being driven, the display panel 20 is not applied with the horizontal synchronization signal H-sync. This makes it possible to minimize display noise caused by driving the display panel 20. do.

[0211] On the other hand, FIG. 31 shows the time between two adjacent horizontal sync signals H-sync along the time axis t. Although the touch sensors 10 and 10' are shown to be driven only once in the interval, The touch sensors 10 and 10' may be driven more than once.

[0212] FIG. 32 is a diagram illustrating a second driving method of the touch input devices 1 and 1′ shown in FIGS. 2 and 19. This is a drawing.

[0213] The second driving method shown in FIG. 32 is a method for driving the touch sensor 1 in consideration of driving the display panel 20. 0, 10'. Such a second driving method is similar to the touch controller of FIG. 2 and FIG. 19. This may be accomplished in 15 minutes.

[0214] The second driving method is a driving time period of the touch sensors 10 and 10′ and a driving time period of the display panel 20. This is a driving method that completely separates the time intervals. For example, the entire horizontal synchronization signal H-sync is driven. After that, the touch sensors 10 and 10' are controlled to be driven. The horizontal synchronization signal H-sync is driven after the touch sensors 10 and 10' are driven. It is the law.

[0215] Referring to FIG. 32, in the time interval between the two vertical synchronization signals V-sync1 and V-sync2, One time period is the time period during which the horizontal synchronization signal H-sync that constitutes one frame is driven. Therefore, if it is assumed that the second time period is a time period in which the touch sensors 10 and 10' are driven, 2 and 19, the touch controller 15 shown in FIG. 2 and FIG. 19 can be controlled so that they are completely separated from each other.

[0216] Here, the second time interval is equal to or shorter than the first time interval. On the other hand, although not shown in the drawing, the second time interval may be arranged in advance of the first time interval. That is, after the touch sensors 10 and 10' are driven first, a plurality of water The horizontal synchronization signal H-sync may be driven.

[0217] In the second driving method, the display panel is driven while the touch sensors 10 and 10' are driven. There is no display update for the touch sensor 10,10' While the display panel 20 is being driven, the display panel 20 is not affected by display noise. In addition, the touch sensors 10 and 10' are driven to The effects of possible flicker can also be minimized.

[0218] FIG. 33 is a diagram illustrating a third driving method of the touch input devices 1 and 1′ shown in FIGS. 2 and 19. This is a drawing.

[0219] The third driving method shown in FIG. 33 is a method for driving the touch sensor 1 in consideration of driving the display panel 20. 0, 10'. Such a third driving method is similar to the touch controller of FIG. 2 and FIG. 19. This may be accomplished in 15 minutes.

[0220] Referring to FIG. 33, the third driving method is a method for driving the touch sensors 10 and 10' in accordance with the driving timing and display timing of the touch sensors 10 and 10'. When the drive timing of the play panel 20 is completely separated, the touch report rate Touch report rate is faster than display refresh rate This is a driving method when the voltage is higher than the reference voltage.

[0221] As shown in FIG. 33, the display controller 25 generates two vertical synchronization signals V-sy In the time interval between nc1 and V-sync2, the entire time interval during which the horizontal synchronization signal H-sync is driven is The first time interval is divided into display subframe 1 and the second time interval is divided into display subframe 2. Then, the touch controller 15 performs the two time periods, display sub frame 1 and display sub frame 2. The touch sensors 10 and 10' are driven (touch frame 1) during a predetermined time between frame 2. , the second time interval display subframe 2 and the second vertical synchronization signal V-sync 2. The touch sensors 10 and 10' can be driven (touch frame 2) during this time. If the display refresh rate is 60Hz, the touch report rate is 120Hz. good.

[0222] On the other hand, in Figure 33, the touch report rate is twice the display refresh rate. However, this is not limited to the case where the touch report rate is higher than the display. It can be three, four, ..., N times the refresh rate.

[0223] In the third driving method, the display panel is driven while the touch sensors 10 and 10' are driven. Since there is no display update for panel 20, the touch sensors 10 and 10' are driven This has the advantage of being free from the influence of display noise caused by the display panel 20. In addition, the touch sensors 10 and 10' are driven to prevent flipping that may occur in the display panel 20. The impact of the locker can also be minimized.

[0224] FIG. 34 is a diagram illustrating a fourth driving method of the touch input devices 1 and 1′ shown in FIGS. 2 and 19. This is a drawing.

[0225] The fourth driving method shown in FIG. 34 is a method for driving the touch sensor 1 in consideration of driving the display panel 20. 0, 10'. The fourth driving method is similar to the touch control method of FIG. 2 and FIG. 19. This may be accomplished in 15 minutes.

[0226] Referring to FIG. 34, the fourth driving method is a method for changing the driving timing and display of the touch sensors 10 and 10'. When the drive timing of the play panel 20 is completely separated, the touch report rate is faster than the display refresh rate.

[0227] As shown in FIG. 34, the display controller 25 generates two vertical synchronization signals V-sy In the time interval between nc1 and V-sync2, the entire time interval during which the horizontal synchronization signal H-sync is driven is The first time interval is divided into display subframe 1 and the second time interval is divided into display subframe 2. In this case, the touch controller 15 receives a vertical synchronization signal V-sync1 from the outside and The internal signal whose period is 1 / N (N is a natural number) or whose frequency is N (N is a natural number) is 1 or more. After the generation, the drive voltages applied to the touch sensors 10 and 10' are determined based on the generated internal signals. The timing of the motion signal can be controlled.

[0228] If the internal signal is not used, the touch sensors 10 and 10' are driven in a large number of time periods. The touch controller 15 must control Touch frame 1 and Touch frame 2 one by one. However, according to the fourth driving method described above, the touch controller 15 The two or more time periods in which the sensors 10 and 10' are driven are controlled based on the generated internal signal. This has the advantage that the drive control of the touch sensors 10 and 10' is simplified. .

[0229] In the fourth driving method, the display panel 2 is driven while the touch sensors 10 and 10' are driven. Since there is no display update for 0, the display This has the advantage that the display panel 20 is not affected by display noise. The shadow of flicker that may occur on the display panel 20 due to driving of the touch sensors 10 and 10' is The noise can also be minimized.

[0230] FIG. 35 is a diagram illustrating a fifth driving method of the touch input devices 1 and 1′ shown in FIGS. 2 and 19. This is a drawing.

[0231] The fifth driving method shown in FIG. 35 is a method for driving the touch sensor 1 in consideration of driving the display panel 20. 2 and 19. This may be accomplished in 15 minutes.

[0232] Referring to FIG. 35, the fifth driving method is a method for changing the driving timing and display of the touch sensors 10 and 10'. When the drive timing of the play panel 20 is completely separated, the touch report rate When the refresh rate is faster than the display refresh rate, not only the touch sensors 10 and 10' It is a driving method that also supports stylus.

[0233] When the touch sensors 10 and 10' and the stylus are driven to be supported simultaneously, The controller 15 also divides the driving / receiving time period of the touch sensors 10, 10' and the stylus into time divisions. (time division) and can be driven.

[0234] As shown in FIG. 35, the display controller 25 generates two vertical synchronization signals V-sy In the time interval between nc1 and V-sync2, the entire time interval during which the horizontal synchronization signal H-sync is driven is The first time interval is divided into display subframe 1 and the second time interval is divided into display subframe 2. Then, the touch controller 15 displays the two time periods, display sub frame 1 and display sub frame f The touch sensors 10 and 10' are driven during a predetermined time between the start and end of the frame 2 to drive / receive the stylus. However, the touch sensor drive time and the stylus drive / reception time are separately operated. It is possible.

[0235] For example, a given time between two time intervals, display subframe 1 and display subframe 2 During this time, the touch sensors 10, 10' and the stylus are alternately driven (Touch frame 1-1, You can set it to Stylus frame 1, Touch frame 1-2, Stylus frame 2).

[0236] Here, the meaning of the touch controller 15 driving the stylus is that it is located externally. A pen drive signal that can drive a stylus using the principle of an electric field or a magnetic field is called a stylus drive signal. At this time, the voltage can be applied to the plurality of touch sensors 10 and 10'. One or more second electrodes may receive the pen driving signal from the touch controller 15. The touch sensors 10 and 10' may be connected to other electrodes to transmit the pen driving signals to the touch sensors. It can also be received from Troller 15.

[0237] For example, a given time interval between two time periods, display subframe 1 and display subframe 2, During this time, the touch sensors 10 and 10' are alternately driven and receive signals from the stylus ( Touch frame 1-1, Stylus frame 1, Touch frame 1-2, Stylus frame 2) It can be controlled.

[0238] Here, the meaning of the touch controller 15 receiving the stylus is that it is located externally. It receives the pen signal emitted from the stylus using the principle of an electric field or a magnetic field. At this time, the touch controller 15 may The pen signal can also be received via a plurality of second electrodes, which are included in the touch sensors 10 and 10'. The pen signal can also be received via other electrodes included in the sensor.

[0239] Another example is the time interval between display subframe 1 and display subframe 2. During a certain period of time, the touch sensors 10 and 10' are driven and the stylus is driven and received alternately. Return and execute (Touch frame 1-1, Stylus frame 1, Touch frame 1-2, Stylus frame 2) It can be controlled so that

[0240] Also, the last refresh time interval display subframe 2 and the next vertical sync signal V-sync 2 During the time between the touch sensor 10 and the stylus, both the touch sensor 10 and the stylus are driven. The sensor and stylus are driven alternately (Touch frame 2-1, Stylus frame 3, Touch frame ame 2-2, Stylus frame 4). Or, the touch sensors 10, 10' can be driven. , driving and / or receiving of the stylus is alternately performed (Touch frame 2-1, Stylus f frame 3, Touch frame 2-2, Stylus frame 4).

[0241] Touch controller 15 sets the stylus report rate to When controlled higher than portrait, the stylus report rate is higher than the touch rate. It can be N times the portrait (where N is a natural number greater than 1). It is assumed that the report rate is twice the touch report rate. For example, in Figure 35, if the display refresh rate is 60Hz, the touch report rate is The touch screen rate may be 120Hz and the stylus report rate may be 240Hz. The controller 15 divides the entire time period for driving the touch sensors 10 and 10' into two parts. (Touch frame1-1, Touch frame 1-2), during the specified time between the two divided time sections The stylus is driven (Stylus frame 1) and the second driving time period (Touch frame 1- After 2), you can drive the stylus (Stylus frame 2) again for a while. do.

[0242] In the fifth driving method, the touch sensors 10, 10' and the stylus are driven. Since there is no display update of the display panel 20, the touch sensors 10, 10' and While the stylus is driven, the influence of display noise from the display panel 20 is eliminated. In addition, the touch sensors 10, 10' and the stylus are driven to The effect of flicker that may occur on the display panel 20 can also be minimized.

Claims

1. In a touch input device including a display panel, A plurality of first electrodes and a plurality of second electrodes arranged to intersect with the plurality of first electrodes. a touch sensor; a first electrode electrically connected to the first electrodes and the second electrodes to control the touch sensor; a touch controller configured to: The second electrode includes a pair of electrode portions, and one of the pair of electrode portions is The first electrode is disposed adjacent to at least one of the first electrodes, The other electrode portion of the pair of electrode portions of the second electrode is connected to at least one of the plurality of first electrodes. adjacent to at least one remaining electrode, The touch controller applies the touch sensor to the display panel. The device is driven in synchronization with at least one horizontal sync signal, but the horizontal sync signal is not synchronized with the device. After the voltage is applied to the display panel, the touch sensor is activated for a predetermined time.

1. A touch input device configured as follows:

2. In a touch input device including a display panel, A plurality of first electrodes and a plurality of second electrodes arranged to intersect with the plurality of first electrodes. a touch sensor; a first electrode electrically connected to the first electrodes and the second electrodes to control the touch sensor; a touch controller configured to: The second electrode includes a pair of electrode portions, and one of the pair of electrode portions is The first electrode is disposed adjacent to at least one of the first electrodes, The other electrode portion of the pair of electrode portions of the second electrode is connected to at least one of the plurality of first electrodes. adjacent to at least one remaining electrode, The touch controller is configured to: a touch input device configured to activate the touch sensor for a time interval different from the time interval; 。

3. The touch controller controls the touch report rate of the touch sensor to The display refresh rate of the display panel is controlled to be the same as that of the display panel.

2. A touch input device according to claim 2.

4. The touch controller controls the touch report rate of the touch sensor to The display refresh rate of the display panel is controlled to be higher than the display refresh rate of the display panel. Touch input device.

5. a display controller configured to control the driving of the display panel; , further comprising The display controller may at least set the entire time period during which the horizontal synchronization signal is applied. The display panel is also configured to be driven in two separate time periods, The touch controller is configured to:

5. The touch input device of claim 4 configured to drive a touch sensor.

6. The touch controller receiving a vertical synchronization signal to be applied to the display panel; an internal clock having a period corresponding to 1 / N times (N is a natural number) the period of the received vertical synchronization signal; generating at least one signal; The timing of a driving signal for driving the touch sensor is determined based on the generated internal signal. The touch input device of claim 5 configured to control timing.

7. The touch controller is configured to: The time to drive the touch sensor and the time to drive or / and receive the stylus are controlled by time division.

6. The touch input device of claim 5, configured to control

8. The touch controller adjusts the stylus report rate of the stylus according to the touch Control the rate to be N times (N is a natural number greater than 1) faster than the report rate. Item 8. The touch input device according to item 7.

9. The touch controller is configured to apply at least one driving signal to the plurality of first electrodes. and controlling the sensor to receive sensing signals from the plurality of second electrodes.

3. The touch input device according to claim 2.

10. The touch controller includes a receiving circuit electrically connected to the plurality of second electrodes. fruit, The receiving circuit unit has a pair of input terminals electrically connected to a pair of electrode portions of the second electrode.

10. The touch input device of claim 9, comprising a differential amplifier having:

11. The touch controller includes a receiving circuit electrically connected to the plurality of second electrodes. fruit, The receiving circuit unit a pair of amplifiers whose input terminals are electrically connected to the pair of electrode portions of the second electrode; 、 a signal processing unit electrically connected to the output terminals of the pair of amplifiers to output a differential signal; 10. The touch input device of claim 9, comprising:

12. The touch controller includes a receiving circuit electrically connected to the plurality of second electrodes. fruit, The receiving circuit unit a plurality of amplifiers, each having an input terminal electrically connected to a pair of electrode portions of the plurality of second electrodes; The output terminals of two adjacent amplifiers among the plurality of amplifiers are electrically connected to each other to be differentiated.

10. The touch input device according to claim 9, further comprising: a signal processing unit that outputs a signal obtained by the signal processing unit.

13. The touch controller includes a receiving circuit electrically connected to the plurality of second electrodes. fruit, The receiving circuit unit electrically connects or disconnects a pair of electrode units of each of the second electrodes.

10. The touch input device of claim 9, further comprising a first switch element configured to switch the touch input device.

14. The receiving circuit unit a second switch element connected to one end of the first switch element; a third switch element connected to the other end of the first switch element; a fourth switch element coupled between the second switch element and AC ground; a fifth switch element coupled between the third switch element and the AC ground; 14. The touch input device of claim 13, comprising:

15. The touch controller includes a receiving circuit electrically connected to the plurality of second electrodes. fruit, The receiving circuit unit Each of the electrodes is electrically connected to a pair of electrode portions of the second electrode to connect the pair of electrode portions to each other. a plurality of switching units for electrically connecting or disconnecting the outputting two selected signals from the plurality of switching units; a multiplexer; a differential amplifier that differentially amplifies the two signals output from the multiplexer and outputs the amplified signals; and, 10. The touch input device of claim 9, comprising:

16. The touch controller applies at least one driving signal to the plurality of second electrodes. and controlling the sensor to receive sensing signals from the plurality of first electrodes.

3. The touch input device according to claim 2.

17. The touch controller includes a driving circuit unit electrically connected to the plurality of second electrodes. fruit, The driving circuit unit electrically connects or disconnects the pair of electrode units of each of the second electrodes.

17. The touch input device of claim 16, comprising a first switch element configured to switch the touch input device.

18. The drive circuit unit a second switch element connected to one end of the first switch element; a third switch element connected to the other end of the first switch element; a fourth switch element coupled between the second switch element and AC ground; a fifth switch element coupled between the third switch element and the AC ground; 18. The touch input device of claim 17, comprising:

19. The touch controller includes a driving circuit unit electrically connected to the plurality of second electrodes. fruit, The drive circuit unit Each of the electrodes is electrically connected to a pair of electrode portions of the second electrode to connect the pair of electrode portions to each other. a plurality of switching units for electrically connecting or disconnecting the outputting two selected signals from the plurality of switching units; a multiplexer; a differential amplifier that differentially amplifies the two signals output from the multiplexer and outputs the amplified signals; and, 17. The touch input device of claim 16, comprising:

20. The touch controller includes a driving circuit unit electrically connected to the plurality of second electrodes. fruit, The drive circuit unit The drive signal is amplified and output to one of the pair of electrode portions of the second electrode. a driving driver; The one electrode part and the other electrode part are electrically connected or disconnected.

17. The touch input device of claim 16, comprising a switch element that switches between the first and second positions.

21. The drive circuit unit a driver that amplifies and outputs the drive signal; a second electrode connected between the driver and one of the pair of electrodes; A switch element; a third switch element connected to any one of the electrodes; a receiving analog front end coupled to the third switch element; 18. The touch input device of claim 17, comprising:

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