摘要:
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. In a region corresponding to the substantial center of the at least one liquid crystal domain, the second substrate includes at least one orientation restriction structure exhibiting an orientation restriction force for placing liquid crystal molecules in an axisymmetric orientation at least under an applied voltage. Each pixel region has first and second transmission regions which present display in a transmission mode and a reflection region which presents display in a reflection mode. The first transmission region is disposed so as to contain the at least one orientation restriction structure, and the second transmission region is disposed along the inner edge of the wall-like structure. The reflection region is disposed between the first transmission region and the second transmission region.
摘要:
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.
摘要:
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; anda 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, andat 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.
摘要:
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.
摘要:
A liquid crystal display device of the present invention is a transflective liquid crystal display device that is provided with a backlight, a liquid crystal cell (10), and a reflective electrode (32) provided in the liquid crystal cell (10), and that displays an image through both a reflective display region (a) and a transmissive display region (b). In this liquid crystal display device, a front-side λ/4 plate (wave plate) for a reflective display is further provided on a side from which external light enters the liquid crystal cell (10), and a thin film (33) is provided, on the reflective electrode (32), for correcting a change in chromaticity caused by wavelength dispersion due to the λ/4 plate.
摘要:
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 λ/4 retarder plate. The first best-fit curve, which is obtained from the gamma curve of the reflective display, is above the second best-fit curve, which is obtained from the gamma curve of the transmissive display, except in the regions where the reflectance of the first best-fit curve and the transmittance of the second best-fit curve are both 0% and 100%. The first best-fit curve does not have a gradation reversal and has an inflection point.
摘要:
A liquid crystal display device of at least one embodiment of the present invention includes a TN-mode liquid crystal display panel which is constituted by pixels of three colors (red, green, and blue) and a color filter. A thickness of a liquid crystal layer (cell thickness) is determined on a basis of a retardation value of green light or red light, which has a larger wavelength than blue having shortest wavelength among the three colors. A display data switching circuit carries out gradation conversion of shifting input gradation values to lower gradation values with respect to image data supplied to pixels of blue. Thus, grayscale inversion is prevented. The liquid crystal display device of the present invention produces an effect of improving transmittance of pixels of colors having wavelengths other than the wavelength of blue.
摘要:
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.
摘要:
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.
摘要:
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.