Abstract: A display panel has a plurality of gate terminals that are formed of a gate metal layer and a plurality of source terminals that are formed of a source metal layer, disposed alternately as seen in a plane. From each of the source terminals an intermediate region and a terminal region are provided with inorganic insulating film such that a source terminal lead formed of the source metal layer is covered therewith. The intermediate region is provided with organic insulating film such that the inorganic insulating film is covered therewith. The inorganic insulating film is smaller in thickness in the terminal region than in the intermediate region. The inorganic insulating film has an opening in the terminal region to expose at least a portion of a surface of the source terminal.

Abstract: The present invention provides a transflective liquid crystal display device having a high aperture ratio. The present invention is a liquid crystal display device, comprising: a first substrate; a liquid crystal layer; and a second substrate in this order, wherein the first substrate includes a pixel electrode having a trunk portion, a plurality of branch portions branched from the trunk portion, and slits, the liquid crystal display device comprises a display region including a region where the branch portions and the slits are alternately arranged, the display region includes a reflection region and a transmission region, and in the reflection region, the pixel electrode, a reflective film disposed under the pixel electrode, and a ?/4 retarder are arranged.

Abstract: The present invention provides a liquid crystal display device having a sufficiently improved reflectance. The liquid crystal display device of the present invention is a liquid crystal display device including a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, at least one of the pair of the substrates including an insulating layer and a reflective pixel electrode for reflective display, the insulating layer including a flat part surrounding the reflective pixel electrode, convex portions under the reflective pixel electrode, and a bevel part inclining downward from the flat part between the flat part and the convex portions, the convex portions having an average diameter of 1 to 50 ?m, and vertex points of the reflective pixel electrode layer on the convex portions being not lower than the flat part.

Abstract: The present invention provides an MVA transmissive or transflective liquid crystal display device with display qualities enhanced along with improvement in contrast. A liquid crystal display device of the present invention including: a pair of substrates; and a liquid crystal layer disposed between the pair of substrates, wherein one of the pair of substrates includes a pixel electrode having a rectangular shape when viewed from a display face side, the other substrate includes a linear-shaped dielectric protrusion overlapping with a corner portion of the pixel electrode when viewed from the display face side, and at least one of the pair of substrates includes a corner light-shielding member overlapping with a region where the linear-shaped dielectric protrusion and the corner portion of the pixel electrode overlap with each other.

Abstract: A liquid crystal display device has a vertical alignment type liquid crystal panel. The vertical alignment type liquid crystal panel is provided with an active matrix substrate whereupon a light reflection pixel electrode for reflecting light and a light transmission pixel electrode for transmitting light are provided in each pixel section; a counter electrode substrate; and a liquid crystal layer made of a liquid crystal material having negative dielectric anisotropy. The counter electrode substrate includes a convex section so that the liquid crystal layer in the light reflection section has the thickness thinner than that in the liquid crystal layer of the light transmission section. A liquid crystal panel driving device carries out gray scale transition enhancement processing in which the input gray scale is corrected in accordance with gray scale transition.

Abstract: With the present invention, a fitting curve (f1) of the gamma curve (e1) arranged to be above a fitting curve of the gamma curve (e2), except in a region where the fitting curve (f1) shows a reflectivity of 0 and the fitting curve of the gamma curve (e2) shows a transmissivity of 0, and a gamma curve (e1) of reflective display and a gamma curve (e2) of transmissive display are obtained from measurement. Further, the fitting curve (f1) includes no gray scale inversion but at least one point of inflection (P1) where a sign of a differential coefficient is switched over. Thereby, it becomes possible to realize a liquid crystal display panel and a liquid crystal display device, for displaying images in a transmissive mode and a reflective mode, each of the liquid crystal display panel and the liquid crystal display device easily having an improvement in display quality of reflective display.

Abstract: The present invention provides a liquid crystal display device that uniformly stabilizes the alignment direction of liquid crystal molecules, prevents display roughness and what is called an afterimage phenomenon in which a previous display state remains unchanged in switching display, has excellent display performance, and responds to finer pixels. A liquid crystal display device of the present invention comprises: a pair of substrates; and a liquid crystal layer sealed between the pair of substrates, wherein the liquid crystal layer contains liquid crystal molecules that are aligned vertically to a substrate surface when no voltage is applied, at least one of the pair of substrates includes a pixel electrode, a gate bus line, and a source bus line, the pixel electrode is provided with a slit, the slit bends, and a part of the slit is along the gate bus line.

Abstract: The present invention provides a LCD device providing wide viewing angle display and having an improved transmittance and contrast ratio. The present invention is a liquid crystal display device including: a first substrate; a liquid crystal layer; and a second substrate in this order toward a display face, wherein each of the first and second substrates includes a polarizer and a transparent electrode, the first substrate includes a reflector, the liquid crystal layer contains a liquid crystal material with negative dielectric anisotropy, at least one of the first and second substrates includes a ?/4 retarder including a dielectric material, the ?/4 retarder is arranged to overlap with the reflector when viewed from the display face, and the ?/4 retarder is arranged on a liquid crystal side of the transparent electrode.

Abstract: The present invention provides a liquid crystal display device capable of suppressing alignment disorder of liquid crystal and having satisfactory VR characteristics. According to the present invention, a liquid crystal display device includes a pair of substrates and a liquid crystal layer interposed between the pair of substrates, the liquid crystal display device having a reflective region and a transmissive region. One of the pair of substrates includes a longitudinal projecting portion and a liquid-crystal-layer-thickness adjusting portion for setting a liquid crystal layer thickness in the reflective region to be smaller than a liquid crystal layer thickness in the transmissive region. At least a part of the projecting portion is arranged without a gap along at least a part of a step portion of the liquid-crystal-layer-thickness adjusting portion.

Abstract: The present invention provides semi-transmission type liquid crystal display device offering high contrast ratio and aperture ratio for transmissive display and capable of supporting pixels in fine geometry. The liquid crystal display device of the present invention includes a first substrate (10), a liquid crystal layer (100), and a second substrate (60) in this order. The aforementioned first substrate (10) includes a pixel electrode (19) having a trunk portion and a plurality of branch portions branching out of the aforementioned trunk portion, and the display region, which contains the region in which the branch portions and slits are laid out alternately, includes of a reflective region (R) and a transmissive region (D).

Abstract: In a liquid crystal display device which presents display by forming liquid crystal domains that take radially-inclined orientation, persisting display unevenness is prevented from occurring when the panel surface is pressed, thus realizing high-quality displaying. A liquid crystal display device according to the present invention includes a first substrate, a second substrate provided so as to oppose the first substrate, and a vertical-alignment type liquid crystal layer provided therebetween. The liquid crystal display device according to the present invention further includes wall-like structures regularly arranged on the liquid crystal layer side of the first substrate, such that, when a predetermined voltage is applied, the liquid crystal layer forms at least one liquid crystal domain that takes a radially-inclined orientation state in a region substantially surrounded by the wall-like structures.

Abstract: The present invention provides a semi-transmissive liquid crystal display device that presents excellent display quality in the reflective display, and that can be easily applied to high definition. The liquid crystal display device of the present invention includes a first substrate, a liquid crystal layer, and a second substrate, in this order. The first substrate has pixel electrodes having a structure composed of a trunk portion and a plurality of branch portions that branch off from the trunk portion. The liquid crystal display device has a display region that includes a region where the branch portions and slits are alternately disposed. The display region has a reflective region and a transmissive region. The reflective region has a pixel electrode, a reflective film disposed under the pixel electrode, and a ?/4 retarder plate.

Abstract: The present invention provides an MVA transmissive or transflective liquid crystal display device with display qualities enhanced along with improvement in contrast. A liquid crystal display device of the present invention including: a pair of substrates; and a liquid crystal layer disposed between the pair of substrates, wherein one of the pair of substrates includes a pixel electrode having a rectangular shape when viewed from a display face side, the other substrate includes a linear-shaped dielectric protrusion overlapping with a corner portion of the pixel electrode when viewed from the display face side, and at least one of the pair of substrates includes a corner light-shielding member overlapping with a region where the linear-shaped dielectric protrusion and the corner portion of the pixel electrode overlap with each other.

Abstract: The present invention provides a transflective liquid crystal display device having a high aperture ratio. The present invention is a liquid crystal display device, comprising: a first substrate; a liquid crystal layer; and a second substrate in this order, wherein the first substrate includes a pixel electrode having a trunk portion, a plurality of branch portions branched from the trunk portion, and slits, the liquid crystal display device comprises a display region including a region where the branch portions and the slits are alternately arranged, the display region includes a reflection region and a transmission region, and in the reflection region, the pixel electrode, a reflective film disposed under the pixel electrode, and a ?/4 retarder are arranged.

Abstract: The present invention provides a liquid crystal display device capable of providing improved display characteristics in each of transmissive display and reflection display while suppressing an increase in costs and a module thickness. The present invention is a liquid crystal display device, comprising: a back-side substrate; a viewing-side substrate facing the back-side substrate; a liquid crystal layer disposed between the back-side substrate and the viewing-side substrate; a reflection region; and a transmission region, the viewing-side substrate including: a reflective-portion retardation layer in the reflection region, not in the transmission region; and a light-shielding member that is disposed at a boundary between the reflection region and the transmission region when the viewing-side substrate is viewed in plan.

Abstract: In a transflective type liquid crystal display device of a vertical alignment mode in which liquid crystal domains exhibiting axisymmetric orientations are created, a difference in response speed between a region which presents display in the transmission mode and a region which presents display in the reflection mode is reduced. A liquid crystal display device according to the present invention includes a first substrate and a second substrate and a vertical-alignment type liquid crystal layer interposed therebetween, and has a plurality of pixel regions. The first substrate has a wall-like structure in regular arrangement on the liquid crystal layer side, and the liquid crystal layer forms at least one liquid crystal domain in a region substantially surrounded by the wall-like structure when a predetermined voltage is applied across the liquid crystal layer, the at least one liquid crystal domain exhibiting an axisymmetric orientation.

Abstract: The present invention provides a transmissive or transflective liquid crystal display device in which interference fringes due to reflective light is suppressed and display qualities are improved. A liquid crystal display device of the present invention include: a first substrate; a liquid crystal layer; and a second substrate, formed in this order toward a display surface, wherein at least one of the first and second substrates includes a dielectric protrusion protruded toward the liquid crystal layer, the first substrate includes a reflective film being regularly arranged and overlapping with the dielectric protrusion as viewed in plan, and the reflective film includes a plurality of convex portions protruded toward the display surface.

Abstract: The present invention provides a LCD device providing wide viewing angle display and having an improved transmittance and contrast ratio. The present invention is a liquid crystal display device including: a first substrate; a liquid crystal layer; and a second substrate in this order toward a display face, wherein each of the first and second substrates includes a polarizer and a transparent electrode, the first substrate includes a reflector, the liquid crystal layer contains a liquid crystal material with negative dielectric anisotropy, at least one of the first and second substrates includes a ?/4 retarder including a dielectric material, the ?/4 retarder is arranged to overlap with the reflector when viewed from the display face, and the ?/4 retarder is arranged on a liquid crystal side of the transparent electrode.

Abstract: A liquid crystal display of a CPA mode includes: an active matrix substrate (20) including a plurality of pixel electrodes (23); a counter substrate (30) provided so as to face the active matrix substrate (20), the counter substrate (30) including a common electrode (33); a liquid crystal layer (40) held between the active matrix substrate (20) and the counter substrate (30); and a plurality of pixels (10), the plurality of pixel electrodes (23) being provided at a constant gap from the common electrode (33), the plurality of pixels (10) each having a reflective display region (R) and a transmissive display region (T), the reflective display region (R) for performing display of a transmissive mode, the reflective display region (R) including an alignment control section (4) which makes a thickness (d2) of part of the liquid crystal layer (40) in the reflective display region (R) smaller than a thickness (d1) of the liquid crystal layer (40) in the transmissive display region (T) and which controls alignment d

Abstract: A liquid crystal display device (1) has a vertical alignment type liquid crystal panel (3). The vertical alignment type liquid crystal panel is provided with an active matrix substrate whereupon a light reflection pixel electrode for reflecting light and a light transmission pixel electrode for transmitting light are provided in each pixel section; a counter electrode substrate; and a liquid crystal layer made of a liquid crystal material having negative dielectric anisotropy. The liquid crystal display device is also provided with a liquid crystal panel driving device (2) which drives the liquid crystal panel in accordance with an input gray scale. The counter electrode substrate includes a convex section in each pixel so that the liquid crystal layer in the light reflection section has the thickness thinner than that in the liquid crystal layer of the light transmission section.