Abstract: A photosensor-equipped display device is provided having a combination of visible and non-visible light sources where a voltage drop is minimized when the non-visible light source is turned on. The display device includes: an active matrix substrate; photosensors (9) provided in a pixel region (4) of the active matrix substrate; white LEDs (3a) configured to cause an image to be displayed in the pixel region (4); infrared LEDs (3b) configured to emit light to be reflected and sensed by the photosensors; and a light source control circuit (13) configured to control on and off of the white LEDs (3a) and the infrared LEDs (3b). The light source control circuit (13) reduces an amount of drive current supplied to the white LEDs (3a) while the infrared LEDs (3b) are on to below an amount of drive current supplied to the white LEDs (3a) when the infrared LEDs (3b) are off.

Abstract: Provided is a display device that has a photodetection element in a pixel and can automatically correct a photosensor signal during operation, while resolving offset error with respect to the true black level or white level. As operation modes, a sensor row driver (5) has: (a) a sensor drive mode in which a sensor drive signal of a first pattern is supplied, and a photosensor signal that corresponds to the amount of light received by the photosensor is output to a signal processing circuit (8), and (b) a correction data acquisition mode in which a sensor drive signal of a second pattern that is different from the first pattern is supplied, and a correction photosensor signal level that corresponds to the case where the photosensor detected a black level or a white level is acquired. The photosensor signal levels obtained in the two modes while the ambient environment is controlled to a predetermined condition are stored in a memory.

Abstract: A three-dimensional display apparatus includes a display device capable of displaying an image, and a liquid crystal lens disposed so as to overlap the display device. The liquid crystal lens includes an insulating substrate, a first electrode formed extending in a first direction, a second electrode formed substantially parallel to the first electrode, a high resistance portion electrically connecting the first electrode and the second electrode, an opposing substrate, a common electrode, a liquid crystal layer, and a controller. The sheet resistance of the high resistance portion is in 100 G?/sq or less. The controller controls, in one of the modes, the first electrode and the second electrode to be at different potentials.

Abstract: A stereoscopic display device is provided that enables stereoscopy for various viewing positions. A stereoscopic display device (1) includes: a display panel (14) configured to display images for a plurality of viewpoints, the images having parallax and being arranged regularly; a light beam convertor (11) disposed adjacent the front side of the display panel (14) configured to form virtual lenticular lenses by controlling a voltage, the lenticular lenses adapted to the images on the display panel (14) and being arranged at a certain interval; and a controller configured to control the display panel (14) and the light beam convertor (11). The controller changes the focal length of the virtual lenticular lenses formed by the light beam convertor (11) depending on the distance between the display panel (14) and a viewer.

Abstract: An optical deflector includes: a first element substrate (20) including a first transparent electrode (12) located at a first transparent substrate (10a), an interlayer insulating layer (13) covering the first transparent electrode (12), and a plurality of second transparent electrodes (14) extending in parallel with one another on the interlayer insulating layer (13); a second element substrate (30) facing the first element substrate (20); a liquid crystal layer (40) provided between the first element substrate (20) and the second element substrate (30); and a drive circuit configured to apply signal voltages which are individually defined for the second transparent electrodes (14) and in which a low potential and a high potential are repeated as a whole, to the second transparent electrodes (14) and to apply a signal voltage at the low potential to the first transparent electrode (12).

Abstract: A photosensor-equipped display device is provided having a combination of visible and non-visible light sources where a voltage drop is minimized when the non-visible light sources are turned on. The display device includes: a plurality of infrared LEDs (3b); photosensors (9) provided in a pixel region (4) for detecting reflected light originating from the infrared LEDs (3b); a sensor row driver circuit (7) configured to supply a sensor drive signal to the photosensors (9); an amplifier circuit (6) configured to amplify a signal read from the photosensors (9) in response to the sensor drive signal and output a photosensor signal; a signal processing circuit (20) configured to process the photosensor signal output from the amplifier circuit (6); and a backlight control circuit (13) configured to control on and off of the infrared LEDs (3b). The plurality of photosensors (9) are divided into a plurality of sensor groups in the pixel region (4).

Abstract: Provided is a lighting device (3) that includes a light guide plate (10) having a light entry surface (10a) through which the light originating from a light-emitting diode unit (9) enters, and a light-emitting surface (10c) from which the light that has entered through the light entry surface (10a) exits. The light-emitting diode unit (9) has light-emitting elements (26a and 27a) arranged linearly on a base member (28) with a prescribed interval therebetween, and sealing resin elements (26b and 27b) that seal respective light-emitting elements (26a and 27a). The light entry surface (10a) of the light guide plate (10) is shaped so as to engage with the sealing resin elements (26b and 27b).

Abstract: An optical deflecting element (100A) according to the present invention is an optical deflecting element including a first substrate (11) on which a first electrode (10) is formed, a second substrate (21) on which a second electrode (20) is formed, and a liquid crystal layer (17) arranged between the first electrode (10) and the second electrode (20). At least one of the first electrode (10) and the second electrode (20) includes a plurality of first transparent electrodes (13), a plurality of second transparent electrodes (15), and an inter-layer film (14). The plurality of first transparent electrodes (13) and the plurality of second transparent electrodes (15) are alternately arranged in stripes. The inter-layer film (14) is formed on the plurality of first transparent electrodes (13). The plurality of second transparent electrodes (15) are formed on the inter-layer film (14).

Abstract: Provided is a photosensor builtin display apparatus that controls blurring of a sensor image and a drop in resolution of the sensor image. The photosensor builtin display apparatus includes an active matrix substrate having a plurality of pixel electrodes, a counter substrate having a counter electrode opposed to the plurality pixel electrodes, a display medium layer interposed between the active matrix substrate and the counter substrate, and a photosensor arranged within a pixel region of the active matrix substrate. When the photosensor (in an area a(i+1, j+1), for example) performs an image capturing operation, the display medium layer right above the photosensor is configured to be in a light-blocking state, and the display medium diagonally above the photosensor (in an area a(i,j)) is configured to be in a light-transmissive state.

Abstract: A plurality of first and second sensor pixel circuits each sensing light during a designated sensing period and retaining the amount of sensed light otherwise are arranged in a pixel region. A backlight is turned on once for a predetermined time in one-frame period. A sensing period when the backlight is turned on and a sensing period when the backlight is turned off are set once, respectively, in the one-frame period. The first sensor pixel circuit is reset. The second sensor pixel circuit is reset. Read from sensor pixel circuits of two types is performed in parallel in a line sequential manner during a period other than the periods and. A difference circuit provided outside of the sensor pixel circuits is used for obtaining a difference between an amount of light when the backlight is turned on and an amount of light when the backlight is turned off.

Abstract: A liquid crystal display device including a plurality of pixels arranged in a matrix along a first direction and a second direction which are perpendicular to each other a TFT substrate, a counter substrate, a liquid crystal layer, a plurality of microlenses, and a backlight provided on a side of the plurality of microlenses which is opposite to the TFT substrate. The plurality of microlenses includes a plurality of lenticular lenses extending in the first direction, the plurality of lenticular lenses being arranged side by side along the second direction.

Abstract: A photosensor-equipped display device is provided having a combination of visible and non-visible light sources where a voltage drop is minimized when the non-visible light source is turned on. The display device includes: an active matrix substrate; photosensors (9) provided in a pixel region (4) of the active matrix substrate; white LEDs (3a) configured to cause an image to be displayed in the pixel region (4); infrared LEDs (3b) configured to emit light to be reflected and sensed by the photosensors; and a light source control circuit (13) configured to control on and off of the white LEDs (3a) and the infrared LEDs (3b). The light source control circuit (13) reduces an amount of drive current supplied to the white LEDs (3a) while the infrared LEDs (3b) are on to below an amount of drive current supplied to the white LEDs (3a) when the infrared LEDs (3b) are off.

Abstract: A photosensor-equipped display device is provided having a combination of visible and non-visible light sources where a voltage drop is minimized when the non-visible light sources are turned on. The display device includes: a plurality of infrared LEDs (3b); photosensors (9) provided in a pixel region (4) for detecting reflected light originating from the infrared LEDs (3b); a sensor row driver circuit (7) configured to supply a sensor drive signal to the photosensors (9); an amplifier circuit (6) configured to amplify a signal read from the photosensors (9) in response to the sensor drive signal and output a photosensor signal; a signal processing circuit (20) configured to process the photosensor signal output from the amplifier circuit (6); and a backlight control circuit (13) configured to control on and off of the infrared LEDs (3b). The plurality of photosensors (9) are divided into a plurality of sensor groups in the pixel region (4).

Abstract: Provided is a display device that has a photodetection element in a pixel, and has an input function that is not dependent on the light environment. The display device includes a photosensor in a pixel region. The photosensor includes a first sensor pixel circuit that outputs a sensor signal that corresponds to charge accumulated in an accumulation period when a light source for the sensor is lit, and a second sensor pixel circuit that outputs a sensor signal that corresponds to charge accumulated in an accumulation period when the light source is extinguished.

Abstract: Disclosed is a display device that can compensate for variations of light-detecting element while securing a wide dynamic range of light sensors. This is a display device equipped with light sensors having operation modes for one frame period, which are: a sensor driving mode for obtaining sensor signals, a first correction data acquisition mode for obtaining a first correction data, and a second correction data acquisition mode for obtaining a second correction data. This display device further includes a memory that stores light sensor signal levels obtained, under a controlled ambient environmental condition, by driving the light sensors in the above-mentioned three modes as offset elimination data. A signal-processing circuit uses the first correction data and the second correction data, and the light sensor signal level corrected with the offset elimination data to correct the light sensor signal obtained in the sensor driving mode.

Abstract: Provided is a display device that is capable of ensuring a wide dynamic range of an optical sensor even in the case where an offset due to ambient temperature changes is compensated with use of an output of a reference element. The display device has optical sensors in a pixel region of an active matrix substrate (100), wherein the optical sensors include a photodetecting sensor which outputs a sensor signal according to an amount of received light, and a reference sensor which has a configuration obtained by adding a light shielding film to the photodetecting sensor and outputs a sensor signal according to an offset component.

Abstract: Provided is a display device that has a photodetection element in a pixel and can automatically correct a photosensor signal during operation, while resolving offset error with respect to the true black level or white level. As operation modes, a sensor row driver (5) has: (a) a sensor drive mode in which a sensor drive signal of a first pattern is supplied, and a photosensor signal that corresponds to the amount of light received by the photosensor is output to a signal processing circuit (8), and (b) a correction data acquisition mode in which a sensor drive signal of a second pattern that is different from the first pattern is supplied, and a correction photosensor signal level that corresponds to the case where the photosensor detected a black level or a white level is acquired. The photosensor signal levels obtained in the two modes while the ambient environment is controlled to a predetermined condition are stored in a memory.

Abstract: To provide a display device having an input function that is not dependent on the light environment, multiple sensor pixel circuits that detect light in a specified detection period and hold the light amount when not in the specified detection period are disposed in a pixel region. In a frame in which input is performed using the sensor pixel circuits, a backlight is lit one time for a time in a frame period, and a first detection period and a second detection period are set one time each in the frame period. The difference between the light amount in the first detection period and the light amount in the second detection period is obtained using a difference circuit. The backlight is in an extinguished state at the beginning of the first detection period, and lighting of the backlight is started at a time during the first detection period.

Abstract: A liquid crystal display device is provided with a liquid crystal panel 20 including a plurality of optical sensors, a white backlight 31, and an infrared backlight 32. The infrared backlight 32 is turned on and off with predetermined timings. One part of the optical sensors detect light at the time of turn-on of the infrared backlight 32, and the other part of the optical sensors detect light at the time of turn-off of the infrared backlight 32. One part of the optical sensors is specified as operating optical sensors. A drive circuit of the liquid crystal panel 20 includes a black insertion unit 11, and drives the liquid crystal panel 20 so as to partially perform black display corresponding to the operating optical sensors. This widens an effective region of the optical sensor included in the display device.

Abstract: A liquid crystal display panel includes a liquid crystal panel having a plurality of pixels; a microlens array provided on a light-incident side of the liquid crystal panel; a first polarizing plate and a first optical compensation element provided on a light-outgoing side of the liquid crystal panel; and a second polarizing plate and a second optical compensation element provided on a light-incident side of the microlens array. The retardation of the first optical compensation element along the thickness direction is greater than the retardation of the second optical compensation element along the thickness direction.