Abstract: Provided is an in-cell-type touch-panel-equipped display device that can perform a touch position detection operation without being influenced by potential fluctuations due to image display. The touch-panel-equipped display device includes a plurality of counter electrodes that, together with pixel electrode, form electrostatic capacitances therebetween, and touch sensor lines connected to the counter electrodes. During one scanning operation, a controller supplies a sensor driving signal to the touch sensor lines connected to the counter electrodes of one segment, among the counter electrodes, one segment being composed of a series of the counter electrodes arrayed in a first direction in which gate lines extend. Further, the controller, after supplying the selection signal to at least a part of the gate lines, supplies the sensor driving signal to the touch sensor line connected to the counter electrode of the segment at a position far from the gate line to which the selection signal is supplied last.

Abstract: Provided is a touch panel device configured to execute touch panel drive processing while appropriately preventing discoloration of a semi in-cell touch panel. A touch panel-equipped display device 1000 includes a touch panel TP and a touch panel controller 1. The touch panel TP is configured as a semi in-cell touch panel, and includes a color filter layer, a sense electrode layer provided with sense electrodes Rx11 Rx38, and a drive electrode layer provided with drive electrodes Tx11 to Tx38. The sense electrode layer and the drive electrode layer oppose each other with the color filter layer interposed therebetween. The touch panel controller 1 generates a drive signal such that an integrated value of a potential difference between the drive electrode and the sense electrode is less than a first value in a predetermined period of driving the touch panel.

Abstract: Provided is a touch panel device configured to execute touch panel drive processing while appropriately preventing discoloration of a semi in-cell touch panel. A touch panel-equipped display device 1000 includes a touch panel TP and a touch panel controller 1. The touch panel TP is configured as a semi in-cell touch panel, and includes a color filter layer, a sense electrode layer provided with sense electrodes Rx11 Rx38, and a drive electrode layer provided with drive electrodes Tx11 to Tx38. The sense electrode layer and the drive electrode layer oppose each other with the color filter layer interposed therebetween. The touch panel controller 1 generates a drive signal such that an integrated value of a potential difference between the drive electrode and the sense electrode is less than a first value in a predetermined period of driving the touch panel.

Abstract: The present invention provides a touch panel device that utilizes a touch panel driving process that suitably prevents discoloration of an on-cell touch panel. A touch panel-equipped display device includes a touch panel and a touch panel controller. In the touch panel, drive electrodes and sense electrodes are formed in the same layer. The touch panel controller generates drive signals in a manner that keeps an integrated value of differences in electric potential between the drive electrodes and the sense electrodes less than a prescribed value during prescribed periods in which the touch panel is driven.

Abstract: Provided is a display device characterized in that a display area can be prevented from appearing darker when the position of light-shielding sections are moved, while the control of voltages applied to electrodes is simplified. In the case where electrodes to which a specific voltage is applied are changed from a first electrode group (e.g., 52a) to a second electrode group (e.g., 52b, 58a, 58b), the voltage applied to the first electrode group is switched from the specific voltage to a reference voltage first, and thereafter, the voltage applied to the second electrode group is switched from the reference voltage to the specific voltage.

Abstract: A touch panel includes: a first sensor unit that includes first transmission electrodes and first receiving electrodes; a second sensor unit that includes second transmission electrodes and second receiving electrodes; a transmission unit that provides a drive signal to the first transmission electrodes and the second transmission electrodes; and a receiving unit that receives a plurality of output signals from the first receiving electrodes and the second receiving electrodes. The first sensor unit has a first sensing region and a blank region. The second sensor unit has a second sensing region and a wiring region. The second sensing region is formed to the inside of the blank region in a plan view.

Abstract: A touch panel includes: a sensor unit that includes a plurality of drive electrodes and a plurality of sensor electrodes that intersect one another defining a sensing area, the sensing area being divided into a plurality of preset regions; a measurement unit that measures electrostatic capacitance of intersection capacitance at each intersection of the drive electrodes and the sensor electrodes by charging the intersection capacitance for a charging period that is prescribed by a control signal provided to the measurement unit; a region determination unit that determines to which one of the preset regions in the sensing area the intersection capacitances respectively belong; and a signal generation unit that generates the control signal such that a length of the prescribed charging period varies in accordance with a determination result of the region determination unit.

Abstract: Provided is a display device characterized in that a display area can be prevented from appearing darker when the position of light-shielding sections are moved, while the control of voltages applied to electrodes is simplified. In the case where electrodes to which a specific voltage is applied are changed from a first electrode group (e.g., 52a) to a second electrode group (e.g., 52b, 58a, 58b), the voltage applied to the first electrode group is switched from the specific voltage to a reference voltage first, and thereafter, the voltage applied to the second electrode group is switched from the reference voltage to the specific voltage.

Abstract: Provided is a display device characterized in that a display area can be prevented from appearing darker when the position of light-shielding sections are moved, while the control of voltages applied to electrodes is simplified. In the case where electrodes to which a specific voltage is applied are changed from a first electrode group (e.g., 52a) to a second electrode group (e.g., 52b, 58a, 58b), the voltage applied to the first electrode group is switched from the specific voltage to a reference voltage first, and thereafter, the voltage applied to the second electrode group is switched from the reference voltage to the specific voltage.

Abstract: In a display device with optical sensors, a recognition processing portion (22) performs recognition processing on a scan picture generated by optical sensors (2), and calculates a position. A mode control portion (24) determines whether or not the mode is standby so that the recognition processing portion (22) is stopped from operating. At the time of transition to the standby mode, decimated image memory (25) stores a decimated image with a decreased number of pixels. The mode control portion (24) performs pixel-by-pixel comparison between the stored decimated image and a decimated image supplied anew, and exits the standby mode when the number of pixels whose difference in pixel values is greater than or equal to a first threshold is greater than or equal to a second threshold.

Abstract: Provided is a display device characterized in that a display area can be prevented from appearing darker when the position of light-shielding sections are moved, while the control of voltages applied to electrodes is simplified. In the case where electrodes to which a specific voltage is applied are changed from a first electrode group (e.g., 52a) to a second electrode group (e.g., 52b, 58a, 58b), the voltage applied to the first electrode group is switched from the specific voltage to a reference voltage first, and thereafter, the voltage applied to the second electrode group is switched from the reference voltage to the specific voltage.

Abstract: A liquid crystal panel with built-in sensors 11 includes, in a pixel array 17, a plurality of pixel circuits 1 and a plurality of optical sensors 2 which are arranged two-dimensionally. Infrared light transmitting filters 3 that allow infrared light to pass therethrough and cut off visible light are provided in respective paths of light entering the optical sensors 2. A backlight 15 including white LEDs 4 and infrared LEDs 5 is provided on a back surface of the liquid crystal panel 11. With this, reflected light of backlight light including infrared light is detected by the optical sensors 2 without receiving the influence of visible light, and thus a touch position is detected with high accuracy, irrespective of display data.

Abstract: In a display device with optical sensors, a recognition processing portion (22) performs recognition processing on a scan picture generated by optical sensors (2), and calculates a position. A mode control portion (24) determines whether or not the mode is standby so that the recognition processing portion (22) is stopped from operating. At the time of transition to the standby mode, decimated image memory (25) stores a decimated image with a decreased number of pixels. The mode control portion (24) performs pixel-by-pixel comparison between the stored decimated image and a decimated image supplied anew, and exits the standby mode when the number of pixels whose difference in pixel values is greater than or equal to a first threshold is greater than or equal to a second threshold.

Abstract: A recognition processing unit (22) performs recognition processing on a scan image based on a signal read from a light sensor (2) and outputs coordinate data (Co) indicating the position of an object to be detected. A mode control unit (24) determines a normal mode in which the recognition processing unit (22) is operated or a standby mode in which the operation of the recognition processing unit (22) is stopped. A thinned image memory (25) stores a thinned image when the normal mode is switched to the standby mode. The mode control unit (24) switches the standby mode to the normal mode when a newly supplied thinned image changes from the stored thinned image by a prescribed amount or more. Thus, it is possible to rapidly leave the standby mode and quickly detect the contact position.

Abstract: A display panel housing optical sensors has an active matrix substrate (100) having a pixel region (1) in which pixels are arranged in a matrix, and optical sensors (11) are formed in at least a portion of the pixel region (1). Included among the optical sensors (11) in the pixel region (1) are an image pick-up sensor (11a) that picks up an image of an object that has come close to the pixel region (1) and an environmental illuminance sensor (11b) that detects environmental illuminance, as optical sensors having mutually different characteristics. A signal processing circuit (8) performs processing on an output signal from the image pick-up sensor (11a) in accordance with the environmental illuminance detected by the environmental illuminance sensor (11b).

Abstract: A display panel with built-in optical sensors is provided that can accurately remove a noise component in an imaging signal of an image pick-up sensor in a display region without being influenced by distance from a heat source or distance from a sensor output terminal. The display panel with built-in optical sensors has an active matrix substrate having a pixel region in which pixels are disposed in a matrix, and is configured such that optical sensors are formed in at least a portion of the pixel region. Among the optical sensors in the pixel region are image pick-up sensors (12S) and light-shielded sensors (12B) that are shielded from light. The display panel with built-in optical sensors further includes a correction circuit (4) that corrects sensor output of the image pick-up sensors (12S) with use of sensor output from the light-shielded sensors (12B).

Abstract: A liquid crystal panel with built-in sensors 11 includes, in a pixel array 17, a plurality of pixels 1 and a plurality of optical sensors 2 which are arranged in a row direction and a column direction. The optical sensors 2 are provided to be associated with pixels 1 in every other row (e.g., to be associated with pixels 1 in even rows). A panel drive circuit 16 performs one-line inversion drive and reads signals based on the amounts of received light, from the optical sensors 2. Since the outputs from the optical sensors 2 change in the same direction due to the influence of display data, stripe noise resulting from the switching of the polarities of voltages written into pixel circuits 3 is prevented from occurring in an image generated based on the outputs from the optical sensors 2.

Abstract: A liquid crystal panel with built-in sensors 11 includes, in a pixel array 17, a plurality of pixel circuits 1 and a plurality of optical sensors 2 which are arranged two-dimensionally. Infrared light transmitting filters 3 that allow infrared light to pass therethrough and cut off visible light are provided in respective paths of light entering the optical sensors 2. A backlight 15 including white LEDs 4 and infrared LEDs 5 is provided on a back surface of the liquid crystal panel 11. With this, reflected light of backlight light including infrared light is detected by the optical sensors 2 without receiving the influence of visible light, and thus a touch position is detected with high accuracy, irrespective of display data.

Abstract: Provided are a display panel including an optical sensor that can correct output of an optical sensor according to a change in the environmental temperature, and a display device using the same. The display panel including an optical sensor has an active matrix substrate (100) having a pixel region (1) in which pixels are disposed in a matrix. An optical sensor (11) is formed in at least a portion of the pixels in the pixel region (1). The display panel including an optical sensor includes a temperature sensor (9) that detects the ambient temperature of the optical sensor (11), and a signal processing circuit (8) that corrects output of the optical sensor (11) according to the ambient temperature detected by the temperature sensor (9).

Abstract: A liquid crystal panel with built-in sensors 11 includes, in a pixel array 17, a plurality of pixel circuits 1 and a plurality of optical sensors 2 which are arranged two-dimensionally. Infrared light transmitting filters 3 that allow infrared light to pass therethrough and cut off visible light are respectively provided in paths of light entering the optical sensors 2. Accordingly, an image obtained by the optical sensors 2 is prevented from being influenced by visible light included in outside light or backlight light and thus a touch position is detected with high accuracy, based on an image that is not influenced by visible light included in a large amount in outside light or backlight light. Instead of the infrared light transmitting filters 3, a light-shielding film having the same property 3 may be used.