Abstract: A display device includes: a display panel including a sensor unit configured to detect a touch operation; a first control unit configured to supply a first signal to the display panel; and a second control unit configured to calculate touch information related to the touch operation and to supply the touch information to the first control unit. The first control unit includes: a signal generator configured to generate the first signal based on an image signal supplied from an external image signal supply source; and an overdrive circuit configured to perform a process of increasing an amplitude of the first signal generated by the signal generator. The overdrive circuit is actuated based on the touch information from the second control unit. The first control unit, in response to the actuation of the overdrive circuit, supplies the first signal having the amplitude increased by the overdrive circuit to the display panel.

Abstract: A touch panel display driver includes a source driver circuit, a touch detection circuit, a selector circuit, a register a plurality of source terminals, a plurality of touch detection terminals, and a plurality of selection terminals. The selector circuit electrically connects the source driver circuit to each of the source terminals, electrically connects the touch detection circuit to each of the touch detection terminals, and electrically connects each of the selection terminals to the source driver circuit or the touch detection circuit.

Abstract: A display device includes: a display panel including a sensor unit configured to detect a touch operation; a first control unit configured to supply a first signal to the display panel; and a second control unit configured to calculate touch information related to the touch operation and to supply the touch information to the first control unit. The first control unit includes: a signal generator configured to generate the first signal based on an image signal supplied from an external image signal supply source; and an overdrive circuit configured to perform a process of increasing an amplitude of the first signal generated by the signal generator. The overdrive circuit is actuated based on the touch information from the second control unit. The first control unit, in response to the actuation of the overdrive circuit, supplies the first signal having the amplitude increased by the overdrive circuit to the display panel.

Abstract: A control circuit of an in-cell touch panel device associates a touch position P1 and a touch position P2 with each other when a refresh rate is F1 and a touch-to-touch distance d1 between the successive touch positions P1 and P2 is equal to or less than a determination distance D1. The control circuit associates a touch position P3 and a touch position P4 with each other when a touch-to-touch distance d2 between the touch position P3 detected last in a period in which the refresh rate is F2 lower than F1 and the touch position P4 detected first since a period in which the refresh rate is F1 starts is equal to or less than a determination distance D2 greater than the determination distance D1.

Abstract: An image transmission device (100) includes a compression unit (16) to generate first compression images (5) which are obtained by irreversibly compressing divided images, and to generate second compression images (6) which are obtained by reversibly compressing each of the first compression images (5), a decompression unit (17) to decompress each of the first compression images (5) as decompression images (7), a division sum image generation unit (12) to generate a division sum image (imgSUM), an error sum image generation unit (13) to generate an error sum image (?imgSUM), a judgment unit (14) to generate judgment data (Dj), and a transmission unit (15) to transmit the second compression images (6), the division sum image (imgSUM), the error sum image (?imgSUM) and the judgment data (Dj).

Abstract: A control circuit of an in-cell touch panel device associates a touch position P1 and a touch position P2 with each other when a refresh rate is F1 and a touch-to-touch distance d1 between the successive touch positions P1 and P2 is equal to or less than a determination distance D1. The control circuit associates a touch position P3 and a touch position P4 with each other when a touch-to-touch distance d2 between the touch position P3 detected last in a period in which the refresh rate is F2 lower than F1 and the touch position P4 detected first since a period in which the refresh rate is F1 starts is equal to or less than a determination distance D2 greater than the determination distance D1.

Abstract: A display device includes a touch panel, a panel control unit, and a storage unit configured to store an image signal. The panel control unit provides control to perform a touch detection operation and a write operation in an alternating manner in an image input period and to perform at least the touch detection operation at regular intervals in a suspension period. When an image input period starts, the panel control unit provides control to perform the write operation after an ongoing or subsequent touch detection operation finishes.

Abstract: An image transmission device (100) includes a compression unit (16) to generate first compression images (5) which are obtained by irreversibly compressing divided images, and to generate second compression images (6) which are obtained by reversibly compressing each of the first compression images (5), a decompression unit (17) to decompress each of the first compression images (5) as decompression images (7), a division sum image generation unit (12) to generate a division sum image (imgSUM), an error sum image generation unit (13) to generate an error sum image (?imgSUM), a judgment unit (14) to generate judgment data (Dj), and a transmission unit (15) to transmit the second compression images (6), the division sum image (imgSUM), the error sum image (?imgSUM) and the judgment data (Dj).

Abstract: A method for driving a display device capable of appropriately performing idle driving even when timing information is not transmitted to a liquid crystal module in advance is provided. In a case where, in one vertical period, a non-scanning period other than a scanning period in which a screen of a display unit is scanned once is set to a pause period, a liquid crystal module delays supply of a data signal to the display unit by a recovery period during which a source driver is recovered from a sleep state to an active state in the pause period.

Abstract: A memory liquid crystal display including a liquid crystal panel with a built-in touch panel is provided with a state control circuit configured to switch a state of a pixel electrode between a floating state and a non-floating state. A pulse signal for touch detection is supplied to a common electrode in a touch detection period. The state control circuit changes the state of the pixel electrode from the non-floating state to the floating state before the start of the touch detection period, and changes the state of the pixel electrode from the floating state to the non-floating state after the end of the touch detection period.

Abstract: A display device includes a touch panel, a panel control unit, and a storage unit configured to store an image signal. The panel control unit provides control to perform a touch detection operation and a write operation in an alternating manner in an image input period and to perform at least the touch detection operation at regular intervals in a suspension period. When an image input period starts, the panel control unit provides control to perform the write operation after an ongoing or subsequent touch detection operation finishes.

Abstract: In a memory liquid crystal display including a liquid crystal panel with a built-in touch panel, a black voltage or a white voltage is provided to a pixel electrode in accordance with a value of binary data stored in a memory circuit, and a display voltage generation circuit changes voltage values of the black voltage and the white voltage in synchronization with a continuous pulse voltage for touch detection in a touch detection period so that an absolute value of a voltage between the pixel electrode and a common electrode is maintained at a constant magnitude in each pixel circuit throughout a period from a point in time immediately before the start of the touch detection period to a point in time immediately after the end of the touch detection period.

Abstract: A memory liquid crystal display including a liquid crystal panel with a built-in touch panel is provided with a state control circuit configured to switch a state of a pixel electrode between a floating state and a non-floating state. A pulse signal for touch detection is supplied to a common electrode in a touch detection period. The state control circuit changes the state of the pixel electrode from the non-floating state to the floating state before the start of the touch detection period, and changes the state of the pixel electrode from the floating state to the non-floating state after the end of the touch detection period.

Abstract: In a memory liquid crystal display including a liquid crystal panel with a built-in touch panel, a black voltage or a white voltage is provided to a pixel electrode in accordance with a value of binary data stored in a memory circuit, and a display voltage generation circuit changes voltage values of the black voltage and the white voltage in synchronization with a continuous pulse voltage for touch detection in a touch detection period so that an absolute value of a voltage between the pixel electrode and a common electrode is maintained at a constant magnitude in each pixel circuit throughout a period from a point in time immediately before the start of the touch detection period to a point in time immediately after the end of the touch detection period.

Abstract: A display device can extend a pause period by using a preset second setting period as a unit when a length of the pause period exceeds the second setting period. Further, detection of a touch position and specification of coordinates are interrupted when a vertical synchronization signal is received while specifying the coordinates of the touch position, and coordinates remaining in a coordinate calculation unit are discarded.

Abstract: A display device includes a liquid crystal layer provided between a first substrate and a second substrate, a plurality of touch sensors provided between the first substrate and the second substrate, a touch detection unit configured to perform control of detecting a touch on the basis of capacitance values of the plurality of touch sensors, a pair of wiring lines connected to at least one of the plurality of touch sensors, and a resistance value acquisition unit connected to the pair of wiring lines and configured to acquire, via the pair of wiring lines, a resistance value of a touch sensor to which the pair of wiring lines are connected.

Abstract: A display device can extend a pause period by using a preset second setting period as a unit when a length of the pause period exceeds the second setting period. Further, detection of a touch position and specification of coordinates are interrupted when a vertical synchronization signal is received while specifying the coordinates of the touch position, and coordinates remaining in a coordinate calculation unit are discarded.

Abstract: A touch panel display device includes an active matrix substrate and a control unit. The active matrix substrate is provided with gate lines, pixel electrodes connected to the gate lines, counter electrodes disposed to form a matrix, and touch sensor wires connected to the counter electrodes. The control unit alternately switches, during one frame period, between a gate scan period of scanning the gate lines and a sensor scan period of scanning the counter electrodes by a segment SEG and detecting electrostatic capacitance by. The one frame period includes a plurality of gate scan periods and a plurality of sensor scan periods. The control unit scans each of the segments in a first scan mode of completing touch detection of scanning all the segments in the one frame period a number of times other than an integer.

Abstract: A method for driving a display device capable of appropriately performing idle driving even when timing information is not transmitted to a liquid crystal module in advance is provided. In a case where, in one vertical period, a non-scanning period other than a scanning period in which a screen of a display unit (11) is scanned once is set to a pause period, a liquid crystal module (101) delays supply of a data signal to the display unit (11) by a recovery period during which a source driver (12) is recovered from a sleep state to an active state in the pause period.

Abstract: A touch panel display device includes an active matrix substrate and a control unit. The active matrix substrate is provided with gate lines, pixel electrodes connected to the gate lines, counter electrodes disposed to form a matrix, and touch sensor wires connected to the counter electrodes. The control unit alternately switches, during one frame period, between a gate scan period of scanning the gate lines and a sensor scan period of scanning the counter electrodes by a segment SEG and detecting electrostatic capacitance by. The one frame period includes a plurality of gate scan periods and a plurality of sensor scan periods. The control unit scans each of the segments in a first scan mode of completing touch detection of scanning all the segments in the one frame period a number of times other than an integer.