Abstract: A display device includes: a plurality of stripe-shaped data electrodes that are formed on a first substrate and that extend in the column direction; a plurality of scanning lines and a plurality of reference signal lines that are formed on a second substrate and that extend in the row direction; a plurality of pixel electrodes that are formed on the second substrate and that are disposed in a matrix arrangement; a plurality of switching elements that are formed on the second substrate and in which on/off is controlled by the plurality of scanning lines, and that are disposed between the plurality of reference signal lines and the plurality of pixel electrodes; and an oxide semiconductor layer that is disposed between a source electrode and a drain electrode. The switching elements are formed so as to be disposed in the vicinity of a gate electrode on the oxide semiconductor layer, with an insulating layer interposed therebetween.

Abstract: A light control device is provided which (i) controls an arbitrary area on a plane to emit light and (ii) can suppress a crosstalk. A light control device (1) of the present invention includes: a light guide plate (2), having rectangular parallelepiped light guide paths juxtaposed to each other, for guiding light entered an edge of a shorter side of the light guide path, in a longer side direction of the light guide paths; LEDs (3), provided at the respective edges, for emitting lights toward the respective light guide paths; and light-passage amount adjusting means for adjusting ratios of light-passage amount of the light guide plate (2). The light-passage amount adjusting means (i) is provided on a light exit surface side of the light guide plate (2) and (ii) has rectangular parallelepiped switching elements (4) which allow ratios of light-passage amount of the light guide plate (2) to be adjustable.

Abstract: A liquid crystal display device includes: pixels each composed of n sub-pixels, the pixels being arranged in a matrix; a switching element provided for each sub-pixel; a liquid crystal element provided for each sub-pixel; n reference potential trunk lines having a mutually different magnitude of potential; a first display signal line that supplies a display signal; a scanning line; a controller; a first substrate on which the n reference potential trunk lines and the switching elements are disposed; and a second substrate on which the first display signal lines are disposed. The liquid crystal elements are formed in between the first substrate and the second substrate. A pole at one end of each liquid crystal element of the n sub-pixels is connected to the first display signal line, and a pole at the other end of each liquid crystal element of the n sub-pixels is connected to the respective first to nth reference potential trunk lines via the respective switching elements.

Abstract: The present invention is a system, wherein a switching element is on/off controlled by means of a gate driver of a second substrate, electrical conductivity is made to a pixel electrode at a necessary position by means of a reference signal line, and data signals are applied to the data electrodes of a first substrate. An input terminal contact part connected to the drive signal terminal of the gate driver is electrically connected to the signal line contact part on the first substrate side, and the signal line contact part is connected to the first substrate side terminal merging part. Selection of a scanning line by means of the gate driver, and application of the signals to the data electrodes are performed by inputting required signals from the outside to the first substrate side terminal merging part.

Abstract: Provided is a dimming device capable of emitting light from any area on a flat plane and which is minimized in crosstalk. The dimming device (1) according to the present invention includes: a light guiding plate (2); an LED (3) disposed on an edge of the light guiding plate (2); a switching section (4); a frame division section (5) that divides one frame period into a plurality of sub frame periods; a light source control section (6) that makes the LED (3) emit light every sub frame period; and a voltage application section (7). The switching section (4) includes scan electrodes (8) disposed in a direction parallel to a direction in which the LED (3) is disposed, a plurality of signal electrodes (10) disposed in a direction at right angles to the scan electrodes, and liquid crystal elements (9) with changeable light extraction rates from the light guiding plate (2).

Abstract: A liquid crystal display device (1) of the present invention includes: gate bus lines (2); source bus lines (4); CS bus lines (6); gate electrodes; source electrodes; first transistors (TFT1); second transistors (TFT2); first pixel electrodes; second pixel electrodes; pixel regions (8) each including a first sub pixel (8a) and a second sub pixel (8b); pixel regions (10) each including a first sub pixel (10a) and a second sub pixel (10b); pixel regions (12) each including a first sub pixel (12a and a second sub pixel (12b)); gate electrodes; drain electrodes; third transistors (TFT3); first buffer capacitor electrodes; second buffer capacitor electrodes; and capacitors (Cd). Capacitances of the capacitors (Cd) in the respective pixel regions vary depending on the colors displayed by the respective pixel regions. This makes it possible that occurrence of a color shift of an image viewed from the oblique viewing direction is reduced.

Abstract: A liquid crystal display device (1) includes: a plurality of pixels each displaying any one of mutually different primary colors; a subpixel, provided for each of the plurality of pixels, which has an auxiliary capacitor (Cs1); and a second subpixel, provided for each of the plurality of pixels, which has an auxiliary capacitor (Cs2), the second subpixel having, at a certain grayscale level, a different luminance from the luminance brought about by the first subpixel. The liquid crystal display device (1) further includes: an auxiliary capacitor line (6n) connected commonly to an auxiliary capacitor (Cs1R) in a pixel (8) and an auxiliary capacitor (Cs1G) in another pixel (10); and an auxiliary capacitor line (7n) connected to an auxiliary capacitor (Cs1B) in another pixel (12). The auxiliary capacitor line (6n) is electrically isolated from the auxiliary capacitor line (7n).

Abstract: In order to provide a new light guiding unit capable of accommodating to area-active driving, and a lighting device, a lighting device (10) includes (i) a light guiding unit that includes (a) a light guiding plate (1) made of light-transmitting base material, (b) a plurality of columnar areas (4) filled with liquid crystal material, which columnar areas are provided in a direction intersecting with an in-plane direction of the light guiding plate (1), and (c) a transparent electrode with which a voltage is applied for driving the liquid crystal material, and (ii) an LED (2), as a primary light source.

Abstract: An LCD device (1) includes a liquid crystal display panel (2) and a liquid crystal driving section (4) for driving the liquid crystal display panel (2) from a region with a lower temperature to a region with a higher temperature in in-screen temperature distribution of the liquid crystal display panel (2) in operation. This configuration allows a scan direction (6) in which the liquid crystal display panel (2) is driven to correspond to temperature distribution direction (8) from a portion with a lower temperature to a portion with a higher temperature. As a result, image quality of images to be displayed by the general-purpose liquid crystal display panel (2) is improved.

Abstract: Provided is a pixel circuit which includes a plurality of subpixel circuits and which makes it possible to suppress overshooting of electric potentials of the subpixel circuits to a small level. A pixel circuit (PIX1) includes a first subpixel circuit (PIXA) and a second subpixel circuit (PIXB). The first subpixel circuit (PIXA) includes a first display element (ClcA), a first node (nA), a first external connection terminal (P1), and a first switching element (T1). The second subpixel circuit (PIXB) includes a second display element (ClcB), a second node (nB), a second external connection terminal (P2), a third external connection terminal (P3), a second switching element (T2), and a third switching element (T3). The first node (nA) and the second node (nB) are connected to each other via a first capacitor (C2).

Abstract: In order to provide a liquid crystal display device substrate realizing high-speed driving and wide viewing angle characteristics, a liquid crystal display device substrate (1) includes: gate lines (12); source lines (14) crossing the gate lines (12); Cs lines (16) corresponding to the gate lines (12); TFTs (21) and (22), which are electrically connected with the gate lines (12) and the source lines (14); first and second pixel electrodes electrically connected with the TFTs (21) and (22); TFTs (23) electrically connected with the second pixel electrodes; control signal lines (18) corresponding to the gate lines (12) and electrically connected with gate electrodes of the TFTs (23), via which control signal lines (23) a control signal for controlling switching of the TFTs (23) between on/off conditions is supplied; and buffer capacitors Cs having first electrodes electrically connected with the TFTs (23) and second electrodes electrically connected with the Cs lines (16).

Abstract: A backlight device of the present invention includes a substrate (2), a liquid crystal layer (4), and a scattering layer (5). The substrate (2) has a surface facing the liquid crystal layer (4), on which surface two comb electrodes (3a and 3b) are provided. The comb electrode (3a) includes a plurality of comb-teeth parts (33a) meshing with a plurality of comb-teeth parts (33b) of the comb electrode (3b). Therefore, the comb electrodes (3a and 3b) can causes electric fields to be generated, in response to an applied voltage, in at least two directions each parallel to the surface of the substrate (2). Further, there is a region whose effective refractive indexes with respect to polarized light p and polarized light s become large. It is therefore possible to control emission of both the polarized light p and the polarized light s.

Abstract: The liquid crystal display comprises a first substrate including a first pixel electrode and a second pixel electrode, a second substrate with an opposed electrode formed on, and a liquid crystal layer sealed between the first substrate and the second substrate. The thickness d1 of the liquid crystal layer on the first pixel electrode in the first pixel region is larger than the thickness d2 of the liquid crystal layer on the second pixel electrode in the second pixel region. The first pixel region includes a first partial region and a second partial region where the threshold voltage is higher than in the first partial region. The second pixel region includes a third partial region and a fourth partial region where the threshold voltage is higher than in the third partial region.

Abstract: A liquid crystal display has a pair of substrates with liquid crystal sealed between them. A polymer layer regulates directions in which the liquid crystal molecules tilt. A plurality of gate bus lines and a plurality of drain bus lines are provided on one of the substrates. Color filters and a pixel electrode are provided on the substrate. The pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode. A common electrode is provided on the other substrate. A first thin film transistor is connected to the first sub-pixel electrode, a second thin film transistor is connected to the second sub-pixel electrode, and a third thin film transistor is connected to the second sub-pixel electrode. The first and second thin film transistors are both connected to a first gate bus line, and the third thin film transistor is connected to a second bus line.

Abstract: An illumination device (10) includes (i) a light guide plate (1) made from a light-transmitting material, (ii) a light extracting layer (7) including (a) a light reflecting member, which is provided on a first surface (lower surface (1a)) side of the light guide plate (1), for reflecting light (3) that enters from the light guide plate (1) such that the light (3) is emitted from a second surface (upper surface (1b)) side of the light guide plate (1), the second surface facing the first surface of the light guide plate (1) and (b) a shutter member for switching between transmission and non-transmission of light, and (iii) LEDs (2) each serving as a primary light source. The light guide plate (1) includes a plurality of pillar regions (4) which are provided in a direction perpendicular to an in-plane direction of the light guide plate (1), and which have a refractive index different from that of the light-transmitting material.

Abstract: In a case where each of pixels of a liquid-crystal display panel is divided into two subpixels, the drive levels of the subpixels with respect to the gradation of an input video signal can be selected from among a plurality of drive levels while an increase in the circuit scale is suppressed. Thus, in the present invention, a first subpixel driving level converter for, on the basis of the gradation value of each pixel of the input video signal, obtaining a first gradation value for driving a first subpixel is provided, and the first subpixel is driven and controlled on the basis of the first gradation value. Then, the first gradation value obtained by the first subpixel driving level converter is converted into a luminance value, and a difference with the luminance value such that the gradation values of the whole pixels are converted is obtained. The obtained difference is converted into a gradation value, and a second gradation value for driving a second subpixel is obtained.

Abstract: A liquid crystal display device circuit disclosed includes: a first output transistor (Mo1n+1) having (i) a gate electrode connected to an (n+1)th gate bus line or a gate bus line subsequent to the (n+1)th gate bus line, (ii) a drain electrode connected to a first capacitor (Cb1n+1), and (iii) a source electrode connected to a first pixel electrode (PE1n); and a second output transistor (Mo2n?1) having (i) a gate electrode connected to an (n?1)th gate bus line or a gate bus line preceding the (n?1)th gate bus line, (ii) a drain electrode connected to a second end of the second capacitor (Cb2n?1), and (iii) a source electrode connected to a second pixel electrode (PE2n). This produces a liquid crystal display device circuit that can both reduce power consumption and have a good viewing angle characteristic regardless of whether the scan direction is a forward direction or a backward direction.

Abstract: A liquid crystal display device comprising a liquid crystal layer including liquid crystal molecules provided between a first substrate and a second substrate; pixels forming a display area; electrodes for applying a voltage across the liquid crystal layer within each of the pixels; a plurality of domain regulating structures for dividing orientations of the liquid crystal molecules and forming multiple domains within each of the pixels, when a predetermined voltage is applied across the liquid crystal layer within each of the pixels; and a structure which is formed in an outer area located next to the display area and is substantially the same as at least one of the plurality of domain regulating structures.

Abstract: The invention relates to a liquid crystal display device and provides a liquid crystal display device which can achieve high display quality. A liquid crystal display device is provided with first and second TFTs each having a gate electrode connected to an nth gate bus line and a drain electrode connected to a drain bus line; a first pixel electrode connected to a source electrode of the first TFT; a second pixel electrode connected to a source electrode of the second TFT; a third TFT having a gate electrode connected to an (n+1)th gate bus line and a source electrode connected to the second pixel electrode; and a buffer capacitance portion having a buffer capacitance electrode which is formed in the same layer as the first and second pixel electrodes and is connected to a drain electrode of the third TFT and a buffer capacitance electrode connected to a storage capacitance bus line.

Abstract: Disclosed herein is a liquid crystal display device that includes a normally-black liquid crystal panel whose transmittance takes a minimum value when no voltage is applied and a cold cathode fluorescent lamp used as a light source of a backlight of the liquid crystal panel, the liquid crystal display device including a light irradiator configured to carry out light irradiation of the cold cathode fluorescent lamp in a period from device activation to first lighting of the cold cathode fluorescent lamp.