Abstract: An auxiliary wire, which can be connected to each of a plurality of data signal lines (Sn), is constituted by (i) a first auxiliary wire (17) provided so as to intersect the plurality of data signal lines (Sn) on a side where end parts of the respective plurality of data signal lines (Sn) are connected to a data signal line driving circuit (4) and (ii) a second auxiliary wire (18) provided so as to intersect the plurality of data signal lines (Sn) on a side of the other end parts of the respective plurality of data signal lines (Sn). Between the first auxiliary wire (17) and the second auxiliary wire (17), there are provided (i) a positive-polarity amplifier circuit (6) for receiving a positive data signal from the data signal line driving circuit (4) and (ii) a negative-polarity amplifier circuit (7) for receiving a negative data signal from the data signal line driving circuit (4).

Abstract: A display device (1) includes: a scan line drive circuit (4) which line-sequentially selects from among a plurality of scan signal lines; at least one signal line drive circuit (3) which has a receiving circuit that receives a data signal, and which sequentially supplies the data signal to pixels linked to a scan signal line (6) selected by the scan line drive circuit (4); a timing controller (10) which defines, in accordance with sync signals received from an outside source, a non-scan period during which none of the scan signal lines is selected, and which transmits, to the at least one signal line drive circuit (3), an operation discriminant signal that causes the receiving circuit to be underrun during at least part of the non-scan period thus defined. The at least one signal line drive circuit (3) and the timing controller (10) are provided as separate entities.

Abstract: A liquid crystal display device (1) according to one embodiment of the present invention includes a timing controller (4) which, (i) in a first display mode, in which a number of tones that each pixel is capable of displaying is smaller than a predetermined number, controls a scanning signal and a data signal by an interlace driving method, by which a single frame includes a plurality of fields, and (ii) in a second display mode, in which the number of tones that each pixel is capable of displaying is equal to or greater than the predetermined number, controls the scanning signal and the data signal by a progressive driving method.

Abstract: The timing controller determines the number of data lanes (11, 12, 13), which are used to transfer data, based on information in relation to an amount of data to be transferred during a predetermined time period. Out of the plurality of data lanes (11, 12, 13), the determined number of data lane(s) (11, 12, 13) are used to transfer data. Further, a data lane(s) (11, 12, 13) which is not used in the data transfer is deactivated.

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: A liquid crystal display device includes a gate driver, a source driver and a common driver. An input video signal is stored in a line memory and a gray scale with which an applied voltage becomes highest is detected from data corresponding to 1 line among the signal. A common electrode is driven by a common voltage being reduced in accordance with the gray scale and having a low effective value. The driver is driven by an output controlled in accordance with the voltage thus reduced. A voltage applied to a common electrode is set by using a LUT and a common voltage is set by using a LUT. It is therefore possible to provide a liquid crystal display device and a method of driving the liquid crystal display device, each of which can reduce power consumption.

Abstract: A liquid crystal display device (1) includes: a pixel circuit (4) in which a retention capacitor is provided; an illuminance sensor (14) for detecting illuminance on a liquid crystal display surface of a liquid crystal panel (2) of the liquid crystal display device; and a CS driver (8) for applying a voltage across the retention capacitor in accordance with the illuminance detected by the illuminance sensor (14).

Abstract: In a liquid crystal display device performing alternating-current driving, at least one of a gate voltage amplitude Vgp?p(p) upon application of a positive polarity voltage and a gate voltage amplitude Vgp?p(n) upon application of a negative polarity voltage is changed in accordance with a liquid crystal driving frequency. Thus, an effective value of a liquid crystal application voltage in a positive polarity is set to be equal to an effective value of a liquid crystal application voltage in a negative polarity irrespective of the liquid crystal driving frequency, so that flicker is prevented from occurring when the liquid crystal driving frequency is switched. As the liquid crystal driving frequency is low, a gate low voltage Vgln after application of the negative polarity voltage is set to be low. Thus, a leak current from a TFT is reduced in the negative polarity, and a liquid crystal element is improved in voltage holding ratio.

Abstract: A liquid crystal driving circuit is disclosed which carries out time-division driving with respect to each pixel constituting a liquid crystal display panel by causing a bright and dark frame period and a positive and negative frame period to be different from each other, the bright and dark frame period being a period of brightness and darkness of luminance at which to drive the each pixel, the positive and negative frame period being a period of polarities of a voltage to be applied to liquid crystal of the each pixel.

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: An input device includes a display unit and a touch panel provided to the display unit. In at least one embodiment, the input device further includes: a finger image generation section which generates respective images of, among a plurality of fingers pressing on the touch panel, a first finger and a second finger adjacent to the first finger; and a display process section which displays on the display unit a plurality of input images corresponding to a distance between two images generated by the finger image generation section and respective sizes of the two images. This allows the input device including the touch panel to adjust, as a result of a single setting, the input images to be appropriate for sizes of fingers and a size of a hand of the user.

Abstract: An input detection device (1) of the present invention has a multi-point detection touch panel (3), and further includes: image generation means generating an image of an object sensed by the touch panel (3); determination means determining whether or not the image matches a predetermined reference image prepared in advance; and coordinate finding means finding, if the image is determined not to match the reference image by the determination means, coordinates of the image on the touch panel (3). This allows the input detection device (1) having the multi-point detection touch panel (3) to sense only a necessary input and to avoid an improper operation.

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: The present invention relates to a display device in which a plurality of optical sensors are provided in a display panel. A liquid crystal panel with built-in sensors (11) includes, in a pixel array (18), a plurality of pixel circuits and a plurality of optical sensors which are arranged two-dimensionally. A panel drive circuit (17) writes signals generated according to display data D3 into the pixel circuits, and reads signals generated according to the amounts of received light, from the optical sensors. An image processing unit (12) switches display data which is used before reading by the panel drive circuit (17) is performed, to fixed data suitable for image input. For the fixed data, white image data or blue image data is used.

Abstract: In a liquid crystal display device performing alternating-current driving, at least one of a gate voltage amplitude Vgp?p(p) upon application of a positive polarity voltage and a gate voltage amplitude Vgp?p(n) upon application of a negative polarity voltage is changed in accordance with a liquid crystal driving frequency. Thus, an effective value of a liquid crystal application voltage in a positive polarity is set to be equal to an effective value of a liquid crystal application voltage in a negative polarity irrespective of the liquid crystal driving frequency, so that flicker is prevented from occurring when the liquid crystal driving frequency is switched. As the liquid crystal driving frequency is low, a gate low voltage Vgln after application of the negative polarity voltage is set to be low. Thus, a leak current from a TFT is reduced in the negative polarity, and a liquid crystal element is improved in voltage holding ratio.