Abstract: A liquid crystal display (“LCD”) and a driving method of the same are provided. The LCD includes a photo sensor including a ring oscillator having cascade-connected inverters, wherein the output signal of the ring oscillator has a frequency varying according to the ambient luminance.

Abstract: Disclosed is a liquid crystal display (LCD) device provided with a flexible printed circuit (FPC) on a main support, the FPC integrally formed with a color sensor to detect colors of red, green and blue (RGB). The LCD device comprises: a main support having a concaved groove and a through hole partially formed at the concaved groove, the concaved groove formed at a lower surface of a frame with a prescribed width; a light emitting means provided at one side of the main support, and emitting light; a color sensor FPC composed of a flexible printed circuit (FPC) provided at the concaved groove of the main support, and a color sensor fixed to the FPC and inserted into the through hole of the main support, for detecting a color characteristic of light emitted from the light emitting means; and a liquid crystal (LC) panel provided on the main support, and receiving light.

Abstract: A liquid crystal display device includes an array substrate formed with a number of switching elements and photosensors, a countersubstrate arranged opposite to the array substrate with a gap between the array substrate and the countersubstrate, a liquid crystal layer sandwiched between the array substrate and the countersubstrate and formed from a liquid crystal material which is negative in dielectric anisotropy, and an alignment control structure set on at least one of the array substrate and countersubstrate to control the alignment state of liquid crystal molecules in the liquid crystal layer, wherein each of the photosensors being placed opposite to the alignment control structure.

Abstract: An ambient light detection device for use with a liquid crystal display having an array of liquid crystal cells, each liquid cell having at least one transistor for selectively connecting that liquid crystal cell to a signal line and each transistor having a gate connected to a gate line and having a gate supply line selectively connectable to the gate line for turning off the gates. The device includes a current measuring circuit configured to measure the current flowing in the gate supply line as a result of gate leakage current in the gates to which the gate supply line is connected and a controller connected to the measuring circuit and configured to calculate, from the measured current, the level of ambient light reaching the gates.

Abstract: Disclosed herein is a liquid crystal display including a liquid crystal panel including, a first substrate, a second substrate opposed to said first substrate, and a liquid crystal layer interposed between said first substrate and said second substrate, a plurality of pixels being arrayed in a first direction and in a second direction orthogonal to said first direction in a pixel area provided in a plane where said first substrate and said second substrate are opposed.

Abstract: Disclosed herein is a liquid crystal display apparatus, including: a liquid crystal panel having a pixel region in which first and second electrodes apply an electric field to a liquid crystal layer to display an image; the liquid crystal panel including a photo-sensor element having a light receiving face at which the photo-sensor element receives incident light through the liquid crystal layer in the pixel region to produce received light data; at least one of the first and second electrodes being formed in a region of the pixel region other than a light receiving face corresponding region of the pixel region which corresponds to the light receiving face of the photo-sensor element.

Abstract: The present invention provides a display device capable of realizing an appropriate screen display luminance in accordance with a video feature quantity and brightness around and sufficiently reducing power consumption. A liquid crystal display apparatus (1) includes: a liquid crystal panel (20) for displaying a video by an input video signal; a backlight unit (17) as a light source for irradiating the liquid crystal panel (20); and a brightness sensor (24) for detecting the brightness around the liquid crystal display apparatus (1). According to the brightness detected by the brightness sensor (24), luminance conversion characteristic defining the light emission luminance of the backlight for the feature quantity (such as APL) of the input video signal is changed.

Abstract: A liquid crystal display (“LCD”) includes; a lower receiving container which includes; a bottom plate, sidewalls extending from the bottom plate, a first through-hole formed in the bottom plate, and a guide pole disposed on the bottom plate and which substantially surrounds the first through-hole, a plurality of light sources disposed within the lower receiving container; an optical sensor printed circuit board (“PCB”) attached to a bottom surface of the bottom plate, wherein the optical sensor printed circuit board covers the first through-hole, and an optical sensor mounted on the optical sensor PCB and inserted into the first through-hole.

Abstract: To improve the quality of light emitted by a light source in a display apparatus (10) comprising a light source (20) and a light modulator (30), integral means (60) for measuring the colour characteristics of the light emitted from the light source (20) are provided, and controlling means (80) for controlling the light source and/or the light modulator in response to the measured colour characteristics of the light emitted from the light source (20).

Abstract: An exemplary liquid crystal panel includes a first substrate, a second substrate opposite to the first substrate, a light sensor disposed at an inner side of the first substrate, and a black matrix disposed at an inner side of the second substrate. The light sensor includes a light-sensing unit, and the black matrix includes a semi-transparent film corresponding to the light-sensing unit. A liquid crystal display device employing the liquid crystal panel is also provided.

Abstract: To provide a liquid-crystal display device that can be miniaturized while optimum brightness is ensured, as well as a portable terminal using the liquid-crystal display device. In a liquid-crystal display device, a first sensor 7 is situated on a metallic wiring layer 35; blocks light from a backlight 5; is placed in an open area which is not covered with a black matrix 21 with respect to external light; and detects incident external light. A second sensor 8 is placed at a position other than location of the metallic wiring layer, and detects light from the backlight. A control section 103 adjusts the brightness of the backlight 5 in accordance with the intensity of external light detected by the first optical sensor 7 and the brightness of the backlight detected by the second optical sensor 8.

Abstract: Disclosed herein is a display device that displays a desired image on an effective pixel area in which sub-pixels are arranged in a matrix, the display device including: an ambient light sensor configured to be provided in a predetermined sub-pixel in the effective pixel area, the ambient light sensor receiving ambient light and outputting a result of detection of an ambient light amount for adjustment of luminance of the image; and a hue correction mechanism configured to correct local hue change due to provision of the ambient light sensor in the predetermined sub-pixel.

Abstract: A liquid crystal display apparatus containing an image sensor, which comprises a liquid crystal display part comprising an active matrix circuit, a peripheral driver circuit for driving the active matrix circuit, and a sensor part, integrated on one substrate, wherein the sensor part is sealed and protected with a sealing part and a counter substrate.

Abstract: A liquid crystal display includes: a display with an array substrate having scanning and data lines and an IC chip driving liquid crystal, and a color filter substrate; a light-detector having an optical sensor integrated in the display detecting external light; a detection circuit connected via sensor laid-around lines connecting to light-detector lines; an illuminator illuminating the display panel; and a controller controlling the illuminator based on the detection circuit's output. The data lines are distributed to the chip-mounting area and have terminals at an end for connecting to IC chip bump terminals. Leader lines distribute from the terminals toward the chip-mounting area and have inspection terminals at their ends. Sensor inspection lines connect at one end to the sensor laid-around lines and extend at the other end to the chip-mounting area. Sensor detection terminals are formed at the other end of the sensor inspection lines.

Abstract: A display device using a novel semiconductor device, which includes a pixel matrix, an image sensor, and a peripheral circuit for driving those, that is, which has both a camera function and a display function, and is made intelligent, is provided and a method of manufacturing the same is also provided. One pixel includes a semiconductor device for display and a semiconductor for light reception, that is, one pixel includes semiconductor devices (insulated gate-type field effect semiconductor device) for controlling both display and light reception, so that the display device having a picture reading function is made miniaturized and compact.

Abstract: A display system includes a housing member which has space therein, a plurality of light source units which are placed in the space, a diffusion member which is disposed on the light source units, a liquid crystal display panel which is disposed on the diffusion member, an infrared camera unit which is interposed between the liquid crystal display panel and the diffusion member and photograph a front region of the liquid crystal display panel, and a plurality of infrared light sources which emit infrared light to the front region of the liquid crystal display panel.

Abstract: A liquid crystal display capable of improving a color reproduction range is disclosed. The liquid crystal display includes a liquid crystal panel having a plurality of gate lines and a plurality of data lines which cross each other to define a plurality of unit pixel regions; a first pixel region having a first dot pitch among individual pixel regions in at least one of the unit pixel regions; and a second pixel region having a second dot pitch among the individual pixel regions in the unit pixel regions, wherein the first and second dot pitches of the first and second pixel regions are different from each other. By this configuration, the pixel electrodes are formed to have the same opening ratio in the individual pixel regions forming a unit pixel by changing the shape and size of the pixel electrodes in a region having a sensor and a region without a sensor, thereby improving a color reproduction range and improving the display quality of the liquid crystal display.

Abstract: A thin-film transistor (“TFT”) substrate includes; a substrate including both a light-transmitting region and a light-blocking region, a solar cell pattern disposed on the light-blocking region of the substrate, and comprising at least one solar cell, an insulation layer disposed on the solar cell pattern, and a TFT disposed on the insulation layer.

Abstract: A liquid crystal display is disclosed with a reduced thickness. According to an embodiment, the liquid crystal display device includes a liquid crystal panel including upper and lower substrates and divided into an effective display region and a non-display region adjacent to the effective display region; a backlight unit configured to supply light to the effective display region; a backlight driving unit configured to control an operation of the backlight unit; a driving IC configured to control data to be displayed in the effective display region; an illuminance sensor configured to sense light external to the liquid crystal display device; and a flexible printed circuit (FPC) on which the backlight driving unit is disposed, the driving IC and the illuminance sensor being disposed adjacent to each other in the non-display region over the lower substrate.

Abstract: A display device. The display device including a display surface, a plurality of pixel areas, a plurality of sensor areas, an optical filter portion, a light shielding portion, and an arithmetically operating portion.

Abstract: A liquid crystal display apparatus having little influence of noise and able to improve an SN ratio of a light reception system without requiring a calibration operation when turning on the power, is provided. The apparatus has a plurality of display cells 21 having display circuits 210, light receiving cells 22 each including a light receiving element 221, a reference cell 23 having a configuration equivalent to the configuration of the light receiving cell and blocked from incidence of a light upon the light receiving element 221, and a received light signal processing circuit 6 performing differential signal processing of an output signal of the light receiving cell 22 and an output signal of the reference cell 23 and deleting noise.

Abstract: A photosensor including a semiconductor thin film having a light receiving portion includes the following elements. A substrate has a recess with an inclined side wall having a forward tapered shape. A reflective material layer is disposed along the recess of the substrate. An insulating layer covers the substrate having thereon the reflective material layer. The semiconductor thin film is disposed on the insulating layer so as to cross the recess. The light receiving portion of the semiconductor thin film is disposed above the recess.

Abstract: A liquid crystal display apparatus containing an image sensor, which comprises a liquid crystal display part comprising an active matrix circuit, a peripheral driver circuit for driving the active matrix circuit, and a sensor part, integrated on one substrate, wherein the sensor part is sealed and protected with a sealing part and a counter substrate.

Abstract: A display device includes a first substrate, a second substrate, and microcapsules sandwiched between the first substrate and the second substrate, the microcapsules constituting a display area, the microcapsules encapsulating a display material whose optical properties change in response to electrical stimulation. A conductive material for conducting between the substrates is provided between the first substrate and the second substrate to constitute a vertically conducting portion. The thickness of the conductive material is set such that the distance between the first substrate and the second substrate at the vertically conducting portion is larger than the distance between the first substrate and the second substrate in the display area.

Abstract: A display device using a novel semiconductor device, which includes a pixel matrix, an image sensor, and a peripheral circuit for driving those, that is, which has both a camera function and a display function, and is made intelligent, is provided and a method of manufacturing the same is also provided. One pixel includes a semiconductor device for display and a semiconductor for light reception, that is, one pixel includes semiconductor devices (insulated gate-type field effect semiconductor device) for controlling both display and light reception, so that the display device having a picture reading function is made miniaturized and compact.

Abstract: Provided is a liquid crystal display device including: a liquid crystal display panel; a light detector which is mounted on the liquid crystal display panel and has a plurality of TFT ambient light photo-sensors composed of thin-film transistors (TFTs) for detecting external light; an illumination unit which illuminates light on the liquid crystal display panel; a detection circuit connected to the light detector; and a control unit which controls the brightness of the illumination unit on the basis of the output of the detection circuit, wherein the plurality of TFT ambient light photo-sensors include first and second TFT ambient light photo-sensors for detecting lights of different systems, and, among source wires or drain wires of the first TFT ambient light photo-sensors and the second TFT ambient light photo-sensors, wires which are not connected to the detection circuit are formed by a single wire.

Abstract: An optical sensor for detecting peripheral light including: at least two first transistors coupled in parallel between an output line and base power supply for detecting an intensity of peripheral light; and at least two second transistors positioned at a side of the first transistors and between the first transistors and a voltage source.

Abstract: In a liquid crystal display including a liquid crystal display panel formed by sandwiching a liquid crystal layer between an active matrix substrate and an opposed substrate, and a backlight that illuminates the liquid crystal display panel from a side of the active matrix substrate, a first optical sensor and a second optical sensor are disposed in a peripheral region on a glass substrate of the active matrix substrate. The first optical sensor is formed so that light external to the liquid crystal display and light propagating inside the active matrix substrate enter the first optical sensor. The second optical sensor is formed so that only light propagating inside the active matrix substrate enters the second optical sensor. Also, the second optical sensor is shielded from the external light. For example, a light-shielding film is formed on an upper surface of the second optical sensor.

Abstract: A liquid crystal device includes a plurality of selection lines, a plurality of signal lines, a plurality of pixel portions, a plurality of photosensor portions, a plurality of first power lines, and a plurality of sense lines. The plurality of selection lines are provided in a line direction. The plurality of signal lines are provided in a column direction. The plurality of pixel portions are provided at positions corresponding to intersections of the selection lines and the signal lines. The plurality of photosensor portions are provided in correspondence with a portion of the plurality of pixel portions. The plurality of first power lines are provided in the line direction. The plurality of sense lines are provided in the column direction. Each of the plurality of pixel portions includes a first switching element and a liquid crystal.

Abstract: The invention has light source unit disposed at opposite side to observer side of liquid crystal display device for selectively emitting linearly-polarized light and non-polarized light, and retardation element disposed between liquid crystal display device and light source unit. Plurality of first and second layers whose slow axes are arranged in different directions are alternately arranged on a surface of retardation element that faces light source unit, and plurality of third and fourth layers whose slow axes are arranged in different directions are arranged on the other surface, such that third layers face first layers and fourth layers face second layers. First to fourth layers are arranged such that polarization plane of light passing through first and third layers and second and fourth layers is rotated by 90°, and polarization plane of light passing through first and fourth layers and second and third layers is rotated by 180° or 0°.

Abstract: A driving circuit of a liquid crystal display device and a method for driving the same, which are capable of reducing manufacturing cost of the liquid crystal display device and reducing a luminance deviation so as to improve image quality, are disclosed. The driving circuit of the liquid crystal display device includes an LED backlight which includes a plurality of LED modules arranged in a plurality of division areas and generates light, an internal photosensor which is mounted in any one of the plurality of division areas, for detecting a luminance value, a controller which generates and outputs a plurality of control signals for changing respective luminance values of the plurality of division areas according to the luminance value detected by the internal photosensor, and a plurality of LED drivers which drive the plurality of LED modules according to the plurality of control signals.

Abstract: A liquid crystal display according to an embodiment of the present invention includes a liquid crystal display panel, an illumination unit for the liquid crystal display panel, a plurality of photodetectors, and a control unit Cnt to control the brightness of the illumination unit. The photodetectors are TFT ambient light photosensors LS1 to LS3, for example, which produce outputs that require time to reach a predetermined value, which the time is correlated with the intensity of ambient light. Detection circuits coupled to the photodetectors include circuits (Cmp1 to Cmp3) logically inverted when an output from the TFT ambient light photosensors LS1 to LS3 reaches a predetermined value. The control unit Cnt includes a discrimination implement Maj that determines that the intensity of ambient light has changed when outputs from the majority of the detection circuits are logically inverted.

Abstract: A liquid crystal display (LCD) apparatus includes a first substrate, a second substrate, a liquid crystal layer and a backlight assembly. The first substrate includes a display part and a sensor part. The sensor part is disposed in a peripheral area of the display part and senses external light. The second substrate is disposed opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate. The backlight assembly is disposed adjacent to the second substrate to expose the first substrate and to provide light. A light detecting function of the sensor part may be increased, so that the backlight may be used effectively and the power consumption of the display apparatus may be reduced.

Abstract: A transmittance control device which controls a transmittance factor, include a liquid crystal which is sandwiched with a pixel electrode and a common electrode; a control line which a predetermined control signal inputs; and an optical passive element which controls an electric potential difference on the pixel electrode and the common electrode by connecting with the control line, and the pixel electrode and changing a conduction state of the control line and the pixel electrode according to brightness of an incidence light.

Abstract: An object of the present invention is to provide a driving method by which excellent image quality and high video performance can be obtained as well as liquid crystal display devices and electronic devices with excellent image quality and high video performance. A pixel for monitor use is provided in a liquid crystal display device, and luminance of the pixel is detected using a light sensor. Herewith, because changes in luminance of a backlight with changes in the environment and the amount of time it takes for response of the liquid crystal become able to be calculated, control of the backlight in real time using the calculated information can be performed.

Abstract: A display device includes an active matrix circuit for display, a plurality of bus lines which are connected to the active matrix circuit and which are used to transmit driving signals, driving circuits which supply the driving signals to the plurality of bus lines, the plurality of bus lines and the driving circuits being arranged on a substrate, and optical sensors arranged on the substrate. The optical sensors are arranged in a plurality of sub regions separated using the plurality of bus lines. The plurality of sub regions are arranged between the active matrix circuit and each of the driving circuits.

Abstract: A display device that includes a first substrate having pixel electrodes; a second substrate having a color filter corresponding to the pixel electrodes to display images; a photo switching element disposed at the first substrate; a red or green color filter corresponding to the photo switching element formed at the second substrate to sense an amount of external light; a driving controller configured to output a driving control signal responsive to the amount of external light sensed by the light sensing unit; and a light generation unit configured to provide the display unit with an internal light controlled by the driving control signal. This photo sensor is well suited to human-eye luminosity and uses external light to determine how much backlight is needed.

Abstract: An electro-optical device includes: a panel having a display area in which an electro-optical material is interposed between first and second substrates; and a light detection unit disposed on the first or second substrate to detect illuminance of ambient light of the panel, wherein the light detection unit performs a detecting operation plural times at a predetermined time interval, and wherein the predetermined time interval is set to be a value except for an integer multiple of 1/100 sec or 1/120 sec or a value close thereto.

Abstract: There is provided an infrared signal receiver which includes a photo-detector unit receiving light in a predetermined infrared wavelength region, sent from a remote operating unit; and an optical element disposed in front of the photo-detector unit, allowing the light of the predetermined infrared wavelength region to transmit therethrough in preference to other infrared wavelength region. In the receiver, the predetermined signal wavelength region is a region of 930 nm or longer and 960 nm or shorter, and mean transmittance of light of the optical element in the predetermined signal wavelength region is larger than mean transmittance of light in a region of 900 nm or longer and shorter than 930 nm, and/or, mean transmittance of light in a region of longer than 960 nm and 1,020 nm or shorter.

Abstract: A light sensitive display.

Abstract: It is an object of the present invention to provide a small-size and highly precise liquid crystal display device which has a function of adjusting luminance by using an optical sensor. Another object of the present invention is to provide a liquid crystal display with high image quality and low power consumption by function of adjusting luminance. A photoelectric conversion device is provided between a liquid crystal display panel and a backlight device. The photoelectric conversion device (also referred to as a photo IC) has a sensor for detecting light and the driver portion for the driving the sensor. The intensity of light from the backlight device can be controlled by detecting the external light which enters the liquid crystal panel and affects the display with the sensor, and by feeding back the data to the backlight device.

Abstract: A peripheral light sensor may include at least two transistors connected between an output line and a ground power source, a peripheral light sensing signal corresponding to an intensity of a peripheral light being output through the output line, and at least one color filter over a light receiving section of at least one of the transistors.

Abstract: A liquid crystal display device comprises a liquid crystal panel including first and second substrates bonded to each other with a liquid crystal layer positioned therebetween, and the photosensor, formed on the second substrate, for sensing an external light from the surroundings, wherein the photosensor includes a semiconductor layer formed on the second substrate and provided with n+-type ion implantation region, ion non-implantation region and lightly doped region; an insulation film, formed on the second substrate, for covering the semiconductor layer; a passivation film, formed on the second substrate, for covering the insulation film; a first contact hole passing through the insulation film and the passivation film, to expose source and drain regions of the semiconductor layer; source and drain electrodes connected with the source and drain regions of the semiconductor layer through the first contact hole; an ion implanting prevention film formed on the insulation film and overlapped with the ion non-i

Abstract: A photo-sensitive element, a readout pixel with the photo-sensitive element, and a liquid crystal display with the readout pixels are described. The photo-sensitive element includes a switch TFT and a photo detecting device. The gate electrode of the switch TFT is electrically connected to a switch line and the source electrode of the switch TFT is electrically connected to a readout line. The photo detecting device is connected between the switch line and the drain electrode of the switch TFT for detecting the brightness of a light incident thereon. The photo detecting device is preferably a photo TFT, a photo diode, or a light sensitive resistor. The photo TFT and the switch TFT are preferably amorphous silicon transistors. The switch line is preferably a gate line disposed on the TFT array substrate of the liquid crystal display.

Abstract: A light sensitive display.

Abstract: A light sensitive display.

Abstract: A liquid crystal display (LCD) based communication device (100) is designed to transmit and/or receive data via optical communication signals passing through the liquid crystal (LC) layer (20). To perform data transmission, one or more optical transmitter light sources (80) may be implemented within the LCD stack (e.g., in the backlight cavity) of the device, for transmitting data-encoded optical communication signals through the LC layer. To operate as a data receiver, one or more light sensing devices (90) may be implemented in the LCD stack to sense optical communication signals entering the device through the LC layer.

Abstract: The invention provides a liquid crystal display device which makes it possible to increase functionality by mounting a function element without having to externally mount the function element onto an area near and outside of a liquid crystal display panel. A liquid crystal display device includes a plurality of pixels disposed in a matrix form and a drive element to drive the pixels. A function element, having a function that is different from the function of the drive element, is disposed in an area including the plurality of pixels and used to display. By this, it is possible to increase functionality because function elements having various functions can be incorporated inside a panel.

Abstract: A light control device includes a substrate, a first reflective layer, a light modulating film in which the refractive index varies according to an applied electric field, a transparent electrode, and a second reflective layer having a reflection characteristic such that the reflection band and transmission band exhibit a steep switching pattern at a specified wavelength. The device is configured such that the specified wavelength and the resonant wavelength of a Fabry-Perot resonator defined by the first reflective layer, the light modulating film, the transparent electrode, and the second reflective layer are substantially the same. The reflection-type light control device has improved light utilization efficiency.

Abstract: A color display and solar cell device (100, 300, 500), and methods for fabricating and operating the device. The device (100, 300, 500) includes a transparent light source (140, 340, 540) located behind a liquid crystal display (105, 305, 505) that includes a switchable transflector layer (145, 345, 545). In a first embodiment, the liquid crystal display (105) also includes a tri-color pixelized filter (115), the switchable transflector (145) is a switchable broadband transflector, and the transparent light source (140) is a white light source. In a second embodiment, the switchable transflector layer (345) is a tri-color selectable transflector and the transparent light source (340) is a tri-color selectable light source. In a third embodiment, the switchable transflector layer is a switchable broadband transflector and the transparent light source is a tri-color selectable light source.