65results about How to "Improve touch sensing performance" patented technology

Disclosed is a display device integrated with touch screen. The display device has a reduced bezel and an enhanced aesthetic design. Left and right bezels of a panel are reduced, thus increasing an aesthetic design. A driving circuit that generates the touch driving signal is built into the panel, thus decreasing the size of the touch IC and the manufacturing cost.

Provided are a display device with integrated touch screen and a method of driving the same that reduce a touch error due to the switch of an image and thus enhance touch sensing performance. The display device includes a display panel, a driver IC, and a touch IC. The driver IC respectively supplies a plurality of data voltages, corresponding to frame-unit image data, to a plurality of pixels formed in the display panel, and calculates average luminance of a plurality of touch blocks. Each of the touch blocks includes a certain number of pixels. The touch IC supplies a touch driving signal to each of the touch blocks, compensates for a capacitive change in the pixels due to switch of an image, and senses a touch.

Discussed is an LCD device including a touch screen which reduces the influence of noise applied to the touch screen by driving of a liquid crystal panel and thus leads to enhancement of the touch sensing performance. The LCD device includes a liquid crystal panel, a plurality of first touch electrodes, an insulation unit, a tempered glass, and a plurality of second touch electrodes. The liquid crystal panel includes a lower substrate and an upper substrate. The first touch electrodes are formed on the upper substrate for detecting a touch point in a first direction. The insulation unit is formed on the first touch electrodes. The tempered glass is formed on the insulation unit. The second touch electrodes are formed at a lower surface of the tempered glass for detecting a touch point in a second direction.

The invention discloses a human body inductive touch control water discharge device, which comprises a tap body, a cold water inlet pipe, a hot water inlet pipe and a switch unit, wherein the switch unit comprises a touch induction module, a control module and a power module; when a human body touches a switching control induction area or a water temperature switching induction area formed on the tap body, the touch induction module identifies a touch signal and outputs a corresponding induction signal to the control module; and the control module controls the water discharge device, opens or closes the water discharge device and provides a selected water discharge type according to the induction signal. The human body inductive touch control water discharge device solves the technical problems of high misoperation rate of the touch induction part of a touch inductive tap, influence of an external environment on the touch signal, mechanical abrasion produced by temperature adjustment, inconvenience of use and limitations to adjustment in the prior art, and is convenient to use, high in touch control accuracy and intelligent.

An organic light-emitting display panel having a built-in touchscreen and an organic light-emitting display device having a built-in touchscreen is disclosed. The organic light-emitting display panel includes a plurality of subpixels defined therein by a plurality of data lines and a plurality of gate lines, an encapsulation layer having an encapsulating function, and a color filter layer located on the encapsulation layer. The organic light-emitting display device includes the organic light-emitting display panel. Both the organic light-emitting display panel having a built-in touchscreen and the organic light-emitting display device having a built-in touchscreen is provided with a structure enabling a touchscreen disposed therewithin.

The coordinate input device of the present invention includes a sensing panel that has a plurality of sensing strip antennas, and a sensing control circuit that controls the sensing panel to sense a touch input and calculate corresponding touch input coordinates to provide the coordinates to a host. The coordinate input device of the present invention may also include a sensing control circuit that calculates touch input coordinates based on a variation in electrical characteristic values related to the impedance matching of a scan signal with respect to the touch input of an electrostatic object, and senses all of the touch inputs of the electrostatic object and a stylus pen by using the same and one sensing panel without having a separate digitizer panel for sensing the respective touch inputs of the stylus pen, by using the change function of a touch sensing mode.

A touch sensing system is disclosed. The touch sensing system includes a guard signal generation chip operating in a first power domain referenced to a first voltage, the guard signal generation chip configured to generate a guard signal. A touch sensing chip operates in a second power domain, different from the first power domain, referenced to the guard signal, the touch sensing chip configured to sense touch at one or more touch electrodes included in a touch sensor panel operating in the second power domain referenced to the guard signal, and the touch sensing chip a different chip than the guard signal generation chip. A voltage regulator is configured to selectively regulate a voltage of the guard signal at the touch sensing chip.

A touch sensor panel is disclosed. The touch sensor panel includes a first set of touch electrodes configured to operate as drive lines and that are disposed in a first layer of the touch sensor panel. The touch sensor panel also includes a second set of touch electrodes configured to operate as sense lines and that are disposed in a second layer of the touch sensor panel, different than the first layer of the touch sensor panel, such that one or more mutual capacitance touch nodes are formed by the first set of touch electrodes and the second set of touch electrodes. The touch sensor panel also includes a third set of touch electrodes configured to operate as self-capacitance electrodes and that are disposed in the first layer or the second layer of the touch sensor panel.

The invention provides a display panel structure provided with a hidden blind hole and a manufacturing method thereof. A transparent substrate is provided with the blind hole and a visible area, a covering element is arranged on the visible area, printing ink is sprayed onto the surface of the photo-permeable substrate with the covering element as a mask so that a decorative layer can be formed on the inner surface of the blind hole and around the visible area, and the covering element is removed at last so that a required decorative layer pattern can be obtained. The decorative layer manufactured with the spraying technique is more uniform and efficient. Manufacturing processes are simplified, yield is increased, and manufacturing cost can be reduced.

Embodiments disclosed herein relate to a touch display panel and a touch display device. By arranging a shielding structure, which is connected to a touch electrode in a region where a touch line and a data line overlap each other or is applied with a shielding signal corresponding to a touch driving signal from an outside circuit, between the touch line and the data line, it is possible to prevent direct capacitance from being formed between the touch line and the data line, and to prevent the capacitance formed due to the data line from causing noise on a touch sensing signal. In addition, by arranging a touch load reduction layer between the shielding structure and the touch line, it is also possible to reduce the capacitance between the touch line and the data line arranged in the horizontal direction, thereby improving touch sensing performance.

A touch sensing system is disclosed. The touch sensing system includes a guard signal generation chip operating in a first power domain referenced to a first voltage, the guard signal generation chip configured to generate a guard signal. A touch sensing chip operates in a second power domain, different from the first power domain, referenced to the guard signal, the touch sensing chip configured to sense touch at one or more touch electrodes included in a touch sensor panel operating in the second power domain referenced to the guard signal, and the touch sensing chip a different chip than the guard signal generation chip. A voltage regulator is configured to selectively regulate a voltage of the guard signal at the touch sensing chip.

A touch panel defines a touch area and a non-touch area around the same; the touch panel include a substrate, a plurality of first touch electrodes, an insulating layer and a plurality of second touchelectrodes, wherein the first touch electrodes, the insulating layer and the second touch electrodes are stacked on the substrate in sequence; the first touch electrodes and the second touch electrodes are positioned in the touch area. The touch panel also includes a plurality of first lines and second lines in the non-contact area; the first lines are connected with the first touch electrodes, the second lines are connected with the second control electrodes, the non-touch area is provided with a binding area such that the lines are connected to a control circuit; the binding area is provided with a plurality of connection pads connected with the lines; the second touch electrodes form multiple extension lines in the non-touch area; each extension line is extended the binding area and isin covering lap joint with one connection pad. The touch panel ensures that the second touch electrodes are electrically connected with the control circuit, and touch sensing effect is effectively improved.

The embodiment of the invention discloses an embedded capacitive type touch panel and a preparation method thereof, relating to the technical field of a touch panel. The cost of the embedded capacitive type touch panel is reduced; and the touch sensing property is improved. The embedded capacitive type touch panel comprises a touch circuit; the touch circuit comprises a sensing unit and an amplifying unit, which are arranged on an array substrate; the sensing unit is connected with the amplifying unit; and the sensing unit is connected with a grid line in a display pixel structure on the array substrate. The preparation method of the embedded capacitive type touch panel comprises the following steps of: forming the array substrate consisting of the display pixel structure and the touch circuit; forming a colorful film substrate; and packaging the colorful film substrate and the array substrate in a box, and filling a liquid crystal material into the box.

The present disclosure provides a display device having a touch sensor for securing improved touch-sensing performance. The display device having a touch sensor includes a touch-driving circuit configured to drive a touch-driving line and a touch-sensing line, which are disposed on an encapsulation unit covering a light-emitting element, in a mutual-capacitance mode and to drive at least one of the touch-driving line or the touch-sensing line in a self-capacitance mode, and the touch-driving circuit supplies a load free driving signal to a shield line overlapping the touch-driving line and the touch-sensing line, thereby securing improved touch-sensing performance.

Provided are a display device with integrated touch screen and a method of driving the same that reduce a touch error due to the switch of an image and thus enhance touch sensing performance. The display device includes a display panel, a driver IC, and a touch IC. The driver IC respectively supplies a plurality of data voltages, corresponding to frame-unit image data, to a plurality of pixels formed in the display panel, and calculates average luminance of a plurality of touch blocks. Each of the touch blocks includes a certain number of pixels. The touch IC supplies a touch driving signal to each of the touch blocks, compensates for a capacitive change in the pixels due to switch of an image, and senses a touch.

A backlight module and a display device using the same are provided. The display device includes a display panel, an electromagnetic touch panel, and the backlight module overlapping one another. The backlight module has a light guide plate and a light source module consisting of a flexible circuit board strip and a plurality of light sources disposed thereon. The flexible circuit board strip includes a light source section, a connection section, and a signal transmission section. The light source section and the signal transmission section extend along a light entrance edge and a side edge adjacent to the light entrance edge of the light guide plate, respectively. Two ends of the connection section are connected to the light source section and the signal transmission section, respectively. The connection section includes at least one first fold making the light source disposing plane of the light source section and the wiring disposing plane of the signal transmission section be no coplanar and also makes the wiring disposing plane be perpendicular to the plane of the side edge of the light guide plate.

The present disclosure relates to a touch circuit, a touch sensing device, and a touch sensing method. According to the present disclosure, it is possible to obtain an accurate touch sensing result (the presence or absence of a touch and / or a touch position) by compensating for the unintentional change in the quantity of the charge corresponding to a signal obtained by driving a touch screen panel, so as to obtain sensing data in which the influence of the parasitic capacitance generated inside or outside the touch screen panel is reduced or eliminated, thereby improving capacitance-based touch sensing performance.

Disclosed are a display device integrated with a touch screen and a method of driving the same, the display device comprising: a touch panel comprising a touch electrode which is disposed in each of a plurality of pixels defined by intersections between a plurality of gate lines and a plurality of data lines; a display driver supplying data voltages for displaying an image to the respective pixels during a display period, and supplying an initialization data voltage for initializing a capacitance of the touch electrode to each pixel during a touch sensing period; and a touch driver sensing the capacitance of the touch electrode to detect a touched position during the touch sensing period. The display device integrated with the touch screen and the method of driving the same according to the present invention initialize capacitances of the touch electrodes to the same value irrespective of image data of the pixels being changed from black to white during the display period, thus preventing the occurrence of a touch error due to a screen change.

A touch display device and a method of driving the same. A transition value due to polarity inversion of a data voltage supplied to a predetermined number of adjacent subpixels is reduced by varying an inversion pattern by analysis of image data, so that fluctuations in the voltage of touch electrodes due to the transition of the data voltage are minimized. Accordingly, noise due to fluctuations in the voltage of the touch electrodes is removed so as to improve the performance of touch sensing performed in a period in which display driving is performed.

The invention relates to a touch control panel with an antenna. The touch control panel comprises a light transmission substrate, a touch control induction line, multiple metal lead wires, a grounding part, an insulating film and an antenna radiator. The light transmission substrate comprises a visual touch control area and a circumference line area, wherein the circumference line area located around the visual touch control area. the touch control induction line is installed in the light transmission substrate and is located in the visible touch control area. The multiple metal lead wires are arranged in the light transmission substrate and positioned in the circumference line area and are electrically connected with the touch control induction line. The grounding part is arranged in the light transmission substrate and is located in the circumference line area. The insulating film is provided with an upper surface and a lower surface, wherein the lower surface is connected to the circumference line area of the light transmission substrate. The antenna radiator is arranged on the upper surface of the insulating film and at least part of the antenna radiator is located above the grounding part and is electrically connected to the grounding part.

A touch sensing system and a method of driving the same are disclosed. The touch sensing system includes a touch screen integrated display panel provided with a plurality of touch sensors and a plurality of pixels, a timing controller time-dividing one display frame into a plurality of touch periods and a plurality of display periods, a microcontroller unit dividing a sensing mode of the plurality of touch sensors into a full scan mode and a local scan mode, and a touch integrated circuit (IC) sensing a finger touch input of the touch sensors through the touch periods in the full scan mode and time-division sensing a finger touch input and a pen touch input of the touch sensors through the touch periods in the local scan mode.

An organic light-emitting display panel having a built-in touchscreen includes a plurality of subpixels defined therein by a plurality of data lines and a plurality of gate lines, an encapsulation layer having an encapsulating function, and a color filter layer located on the encapsulation layer. An organic light-emitting display device includes the organic light-emitting display panel. Both the organic light-emitting display panel having a built-in touchscreen and the organic light-emitting display device having a built-in touchscreen is provided with a structure enabling a touchscreen disposed therewithin.

Disclosed is a display device integrated with touch screen. The display device has a reduced bezel and an enhanced aesthetic design. Left and right bezels of a panel are reduced, thus increasing an aesthetic design. A driving circuit that generates the touch driving signal is built into the panel, thus decreasing the size of the touch IC and the manufacturing cost.

The invention provides an electronic device with a fingerprint sensing function. The electronic device comprises a fingerprint sensing array, a plurality of fingerprint sensing signal reading lines, aplurality of touch control driving lines, a touch control driving circuit, and a reading circuit. The fingerprint sensing array comprises a plurality of fingerprint sensing units arranged in arrays.The fingerprint sensing signal reading lines are respectively coupled to one row of fingerprint sensing units of the fingerprint sensing array. The touch control driving lines and the fingerprint sensing signal reading lines are arranged in a staggered mode. The touch control driving circuit is coupled to a plurality of touch control driving lines and provides a plurality of touch control drivingsignals to the touch control driving lines. The reading circuit is coupled to the fingerprint sensing signal reading lines. Responding to a plurality of touch control driving signals outputted by thetouch control driving lines, the reading circuit decides the touch control position of a touch control object according to a plurality of reading signals outputted by a plurality of fingerprint sensing signal reading lines.

Provided is a touch display device including a folding area in an active area. The same pattern of touch electrodes can be maintained in both a reference area and a folding area and cracks on touch electrodes in the folding area, by applying a pattern structure of a touch insulation film disposed in the folding area. Therefore, the degradation of touch sensing performance, caused by cracks on the touch electrodes in the folding area, can be prevented and touch sensing sensitivity can be uniform in the reference area and the folding area, thereby improving touch sensing performance of the touch display device including the folding area.

An organic light-emitting display panel having a built-in touchscreen and an organic light-emitting display device having a built-in touchscreen is disclosed. The organic light-emitting display panel includes a plurality of subpixels defined therein by a plurality of data lines and a plurality of gate lines, an encapsulation layer having an encapsulating function, and a color filter layer located on the encapsulation layer. The organic light-emitting display device includes the organic light-emitting display panel. Both the organic light-emitting display panel having a built-in touchscreen and the organic light-emitting display device having a built-in touchscreen is provided with a structure enabling a touchscreen disposed therewithin.

Embodiments of the disclosure relate to touch display devices. A shielding pattern to which a constant voltage is applied is placed between the touch routing line and the encapsulation part without overlapping the touch routing line. Thus, it is possible to block the noise due to the signal line positioned under the encapsulation part by the electric field generated by the shielding pattern. Further, the metal disposed on the same layer as the shielding pattern in the planarized area of the encapsulation part may be used as a touch routing line, reducing the resistance and width of the touch routing line and hence the planarized area of the encapsulation part. Thus, it is possible to provide a touch display device for which an increase in the non-active area has been reduced and display noise has been reduced upon touch sensing.

An organic light-emitting display panel having a built-in touchscreen includes a plurality of subpixels defined therein by a plurality of data lines and a plurality of gate lines, an encapsulation layer having an encapsulating function, and a color filter layer located on the encapsulation layer. An organic light-emitting display device includes the organic light-emitting display panel. Both the organic light-emitting display panel having a built-in touchscreen and the organic light-emitting display device having a built-in touchscreen is provided with a structure enabling a touchscreen disposed therewithin.

Improved sensing can include modified sampling and / or processing to improve performance against noise due to environmental variations and interference. In some examples, improved interference rejection can be achieved by sampling a sensor multiple times during settled periods. In some examples, the excitation signal and sampling window can be dynamically adjusted to satisfy drift and / or interference specifications based on various operating conditions or the operating environment. In some examples, drift performance can be traded off to improve interference performance. In some examples, improved immunity to environmental variations can be achieved by equalizing sensor outputs in accordance with characterization of the sensing system. In some examples, improved performance can be achieved by sampling the sensor continuously and using an optimized window function to improve performance against noise.