Abstract: The backlight device includes: a backlight including a plurality of light sources; and a backlight control part. The backlight includes a plurality of divided areas, and light sources disposed in each of the plurality of divided areas are chain-connected. The backlight control part includes at least one backlight control unit for controlling turning on and off of the backlight which includes the plurality of divided areas, with respect to the each divided area. The backlight control unit includes a selection unit for selecting one of divided areas, at least one backlight drive path. The selection unit selects the one of divided areas in a time division manner, and the light sources of the one of divided areas are driven by sharing the at least one backlight drive path in common.

Abstract: A liquid crystal display includes a first substrate and a second substrate opposed to each other with a liquid crystal layer therebetween, the first substrate having a plurality of drain signal lines and a plurality of gate signal lines, and a plurality of pixel regions defined by the drain signal lines and the gate signal lines. The pixel regions include a first electrode formed of a transparent conducting layer, the first electrode being overlapped with the drain signal line and formed on a plurality of the pixel regions, a second electrode formed of a transparent conducting layer, the second electrode being overlapped with the first electrode, a first insulating layer formed between the first electrode and the second electrode, and a second insulating layer formed between the drain signal line and the first electrode.

Abstract: A liquid crystal display includes a first substrate and a second substrate with a liquid crystal layer therebetween, the first substrate having a plurality of drain signal lines and a plurality of gate signal lines, and a plurality of pixel regions defined by the drain signal lines and the gate signal lines. The pixel regions include a first electrode having a plurality of linear shapes, a second electrode having a planer shape, the second electrode being overlapped with the first electrode through an insulation film, and a thin film transistor having a video signal supplied thereto from the drain signal line. The first electrode is connected with the thin film transistor so that an electric potential of the video signal is supplied thereto, and a standard electric potential is supplied to the second electrode. A third electrode is arranged between the drain signal line and the liquid crystal layer.

Abstract: A liquid crystal display device includes: liquid crystals; a circuit layer which includes a thin-film transistor and wirings, the wirings being formed from metal; a pixel electrode and a common electrode which are stacked on each other between the liquid crystals and the circuit layer with an insulating film disposed therebetween in order to drive the liquid crystals in a transverse electric field driving mode, and each of which is formed from a transparent conductive film; a color filter which includes coloring layers of different colors, the coloring layers having different transmittances; and a connection wiring. The wirings includes a common wiring which is disposed so as not to face the coloring layer having the highest transmittance among the coloring layers but to face any one of the other coloring layers. The connection wiring connects the common electrode and the common wiring to each other.

Abstract: The present invention prevents deterioration of image quality by lowering a heat value of a data driver connected to a liquid crystal display panel. In a liquid crystal display device, a pixel which connects a TFT thereof to one of two neighboring scanning signal lines and a pixel which has a TFT thereof connected to the other scanning signal line are alternately arranged in the extending direction of the scanning signal lines, two pixels which are arranged close to each other with one video signal line sandwiched therebetween have respective TFTs connected to the video signal line, and the connection relationship between the TFT of each pixel and the scanning signal line is inverted for every pair of two pixels arranged in the extending direction of the video signal lines.

Abstract: A liquid crystal display device comprising a liquid crystal panel having a cell 15 and polarizing plates 11, 12; wherein a liquid crystal molecule is rotated in parallel to the cell 15, the polarizing plate 12 has a multiple polarizer layer formed thereon, the multiple player having a first polarizer layer having a higher polarization degree with respect to a light from a forward direction than a polarization degree with respect to a light from a oblique direction and a second polarizer layer having a higher polarization degree with respect to a light from a oblique direction than a polarization degree with respect to a light from a forward direction, and an average elastic constant of a splay elastic constant K1, a twist elastic constant K2, and a bend elastic constant K3 of liquid crystal material is equal to 10×10?12 N or larger and satisfies a relationship of K1/K2<=1.5.

Abstract: A liquid crystal display device includes a TFT substrate and a counter substrate with liquid crystal sandwiched therebetween. Support columns which project toward the TFT substrate are formed on the counter substrate. A plurality of gate signal lines, a plurality of drain signal lines, thin film transistors, an insulation film which covers the thin film transistors, organic films which are arranged on the insulation film, and a transparent electrode which constitutes a common electrode arranged on an upper layer of the organic films, are formed on the TFT substrate. A metal film which constitutes a common electrode auxiliary line is arranged on an upper layer of the transparent electrode. The insulation film, the organic films, the transparent electrode, and the metal film are laminated in this order on the gate signal lines, and portions of the metal film arranged on the transparent electrode form pedestals corresponding to the support columns.

Abstract: A liquid crystal display includes first and second substrates opposed to each other with liquid crystal therebetween, the first substrate having a plurality of drain signal lines and gate signal lines, and a plurality of pixel regions defined by the drain signal lines and the gate signal lines. The pixel region has a first electrode formed of a transparent conducting layer having a plurality of slits, a second electrode formed of a transparent conducting layer, and an insulating layer interposed between the first electrode and the second electrode. The second electrode is overlapped with a plurality of the slits of the first electrode in the pixel region, the first electrode is overlapped with the drain signal line and the gate signal line, and at least one of the first electrode and the second electrode is formed between the first substrate and the liquid crystal layer in the pixel region.

Abstract: A liquid crystal display includes a pair of transparent substrates opposed to each other with liquid crystal therebetween, one of the pair of transparent substrates having a plurality of drain signal lines and a plurality of gate signal lines, and a plurality of pixel regions defined by the drain signal lines and the gate signal lines. The pixel region has a TFT element, a first electrode formed of a transparent electrode having a plurality of slits, a connection area that connects the first electrode to the TFT element, and a second electrode formed of a transparent electrode. The second electrode is disposed between the first electrode and the one of the pair of transparent substrates, the second electrode is connected with the second electrode of an adjacent pixel region, and the connected second electrode is arranged at a position overlapping with the gate signal line.

Abstract: A liquid crystal display device having an active matrix display panel with pixel regions having two pixel electrodes and two TFT elements thereon. The two pixel electrodes are formed in each of the pixel regions, the two pixel electrodes are connected to different ones of the two TFT elements and one counter electrode is formed in each of the pixel regions, the counter electrode being formed between a layer of the pixel electrode and a first substrate. Each pixel electrode in the pixel regions has plural slits, the slits in each pixel electrode extending in two directions, and the slits extend in a direction which is not parallel to an extending direction of either of a video signal line or a scanning signal line formed on the first substrate. The two pixel electrodes in the pixel region have adjacent pixel electrode sides which are parallel to each other.

Abstract: Provided is a backlit liquid crystal display apparatus having one pixel unit comprising RGB three primary color regions and a white region or a region having low color concentration, so that high brightness can be compatible with color purity. A pixel unit comprises RGB main pixels and G/R sub-pixels. In a lower gray scale, color purity has priority in display with main pixels, while in a higher gray scale, color purity has priority in display with main and sub-pixels, whereby high brightness can be compatible with color purity. Sub-pixels may be consisted only by green sub-pixels.

Abstract: Provided is a liquid crystal display device capable of improving image quality of a display screen while reducing the number of light sources. A light source mounting substrate (42) formed on a backlight unit (4) has an elongated shape having a longitudinal direction aligned in a vertical scanning direction of the image, and has LED modules serving as light sources disposed at a plurality of positions in the longitudinal direction. A lens (45) is disposed above each of the light sources, for expanding light of the light source toward a region elongated in a horizontal scanning direction. A control device for controlling brightness of the plurality of light sources controls a light emission operation of the light sources in synchronization with selection of a scanning line in an operation of writing an image signal into the liquid crystal panel (2).

Abstract: A display device including a thin film transistor having a semiconductor layer comprising an i-type semiconductor and an impurity doped semiconductor laminated over a first insulating film, a first electrode formed over the semiconductor layer, and a second electrode formed by a part of a data line. A second insulating film is formed over the data line and the transistor and a third electrode is formed over the second insulating film and overlapped with a gate line. In a cross section of an end portion of the first electrode in a direction of a length of a channel, the impurity doped semiconductor extends a minimum distance of 0.2 ?m beyond the first electrode in the direction of a length of a channel of the transistor and the i-type semiconductor extends beyond the impurity doped semiconductor in the direction of a length of a channel.

Abstract: A gate line (40) has a two-layered structure comprising a lower gate line (40a) made of material identical to a pixel electrode (70), and positioned in the same layer as the pixel electrode (70), and an upper gate line (40b) layered on the lower gate line (40b), and made of material having a higher electrical conductivity than the transparent conductive material. According to this structure, it is possible to reduce the number of times performing exposure processes in manufacturing an in-plane switching type liquid crystal panel.

Abstract: A light source section provided in a backlight unit has a smaller width in a direction perpendicular to a length direction of the light source section than a width in the same direction of the liquid crystal panel. A plurality of LED modules are arranged along the length direction of the light source section. The LED modules are respectively assigned to areas of the liquid crystal panel, which are extended in the width direction of the light source section. Lenses are respectively disposed over the LED modules and expand light toward the areas. A control device controls each of the plurality of light sources separately or each of groups into which the plurality of light sources are divided, separately. Accordingly, it is possible to improve a contrast of a display screen, while reducing the number of light sources.

Abstract: A display device having a display element is configured such that the extending directions of electrodes are made different from each other among upper, lower, left and right pixels.

Abstract: A backlight unit has a light source area. The width of the light source area in a first direction is shorter than the width of a liquid crystal panel in the first direction. A plurality of LED modules (31) are arranged along the second direction perpendicular to the first direction. End lenses (41A, 41B) and a middle lens (42) for enlarging a light divergence angle are disposed on the plurality of LED modules (31). The direction in which the end lens (41A, 41B) enlarges the light divergence angle differs from that in which the middle lens (42) enlarges the divergence angle. This structure can reduce difference in brightness of the liquid crystal panel, while reducing the number of light sources.

Abstract: (Object) To increase the ratio of the opening in each pixel in a liquid crystal display device. (Means for Achieving Object) In a liquid crystal display device having an active matrix type liquid crystal display panel: TFT elements in two pixels which are adjacent to each other with one scanning signal line in between respectively have a gate connected to the scanning signal line and either a source or drain connected to a different video signal line; and between two adjacent scanning signal lines, a pixel having a TFT element of which the gate is connected to one of the two scanning signal lines and a pixel having a TFT element of which the gate is connected to the other scanning signal line are aligned in the direction in which the video signal lines extend, and either the sources or the drains of the two TFT elements are connected different video signal lines.

Abstract: The present invention provides a liquid crystal display device which includes a pixel electrode and a counter electrode in a pixel formed on a surface of a substrate which faces liquid crystal, the counter electrode is formed below an insulation film, and the pixel electrode is formed above the insulation film, wherein the counter electrode is formed over a whole area of a center except for a slight periphery of at least the pixel, the pixel electrode is constituted of separate pixel electrodes to which a video signal which is supplied to the pixel is inputted through the separate switching elements at the same timing, and the separate pixel electrodes are respectively formed of a plurality of electrodes and the respective electrodes are alternately arranged.

Abstract: A signal converter to make a display module conduct an n-ply display operation divides one frame period of input display data into n subframes to obtain n-ply display data, shifts the sampling position for each n-ply display data, samples the data to convert resolution thereof, rearranges in n ways a combination of subpixels included in each pixel of output display data resultant from the sampling, and varying the sampling position and the combination of subpixels for each subframe in a cooperative fashion.