Abstract:
A liquid crystal display device includes: a pair of substrates each disposed on each opposing plane and having an electrode of a predetermine shape; a vertical alignment film formed covering each of the electrodes of the pair of substrates and subjected to a rubbing alignment process; an insulating film formed between the electrode and the vertical alignment film in each of the pair of substrates and having necessary insulation; and liquid crystal sandwiched between the pair of substrates and having a negative dielectric anisotropy Δε and a specific resistance ρc1 of 1.0×1014 Ωcm to 1.0×1015 Ωcm, wherein a structure between the electrodes is selected to satisfy conditions of T≦5.2×τc1×1/(1×1012) sec and T≦500 sec, where T is a charge resident time until a display image disappears completely after static electricity of 10 kV is applied between the electrodes of the pair of substrate and the display image is tuned on. It is possible to prevent alignment defects to be caused by static electricity generated by rubbing of a liquid crystal display device.
Abstract:
A liquid crystal display device includes: a pair of substrates each disposed on each opposing plane and having an electrode of a predetermine shape; a vertical alignment film formed covering each of the electrodes of the pair of substrates and subjected to a rubbing alignment process; an insulating film formed between the electrode and the vertical alignment film in each of the pair of substrates and having necessary insulation; and liquid crystal sandwiched between the pair of substrates and having a negative dielectric anisotropy Δ∈ and a specific resistance ρc1 of 1.0×1014 Ωcm to 1.0×1015 Ωcm, wherein a structure between the electrodes is selected to satisfy conditions of T≦5.2×τc1×1/(1×1012) sec and T≦500 sec, where T is a charge resident time until a display image disappears completely after static electricity of 10 kV is applied between the electrodes of the pair of substrate and the display image is tuned on. It is possible to prevent alignment defects to be caused by static electricity generated by rubbing of a liquid crystal display device.
Abstract:
A liquid crystal display device using a low duty ratio driving method with a duty ratio not smaller than 1/16 is manufactured in the following manner. A first substrate is prepared having a first electrode of a predetermined shape. A second substrate is prepared having a second electrode of a shape different from said predetermined shape, the second electrode having signal line electrodes smaller in number than those of the first electrode. An insulating film having necessary insulation is formed on each of the first and second electrodes. First and second vertical alignment films are formed above the first and second substrates, respectively, the first and second vertical alignment films covering the first and second electrodes, respectively. A rubbing process is executed only for the second vertical alignment film. The first and second substrates are disposed facing each other, and liquid crystal having a negative dielectric constant anisotropy is disposed between the first and second substrates. It is possible to prevent alignment defects to be caused by static electricity generated by rubbing of a liquid crystal display device.
Abstract:
A liquid crystal display device using a low duty ratio driving method with a duty ratio not smaller than 1/16 is manufactured in the following manner. A first substrate is prepared having a first electrode of a predetermined shape. A second substrate is prepared having a second electrode of a shape different from said predetermined shape, the second electrode having signal line electrodes smaller in number than those of the first electrode. An insulating film having necessary insulation is formed on each of the first and second electrodes. First and second vertical alignment films are formed above the first and second substrates, respectively, the first and second vertical alignment films covering the first and second electrodes, respectively. A rubbing process is executed only for the second vertical alignment film. The first and second substrates are disposed facing each other, and liquid crystal having a negative dielectric constant anisotropy is disposed between the first and second substrates. It is possible to prevent alignment defects to be caused by static electricity generated by rubbing of a liquid crystal display device.
Abstract:
A liquid crystal display unit has: a pair of opposing substrates; an electrode pattern formed on each of the substrates on an opposing surface side; a vertical alignment film formed on each of the substrates and covering the electrode pattern; a liquid crystal layer squeezed between the substrates; and a pair of polarizer plates formed on the substrates on an opposite side to the side of said liquid crystal layer, wherein an edge of the electrode pattern includes a zigzag pattern parallel to one of axis directions of the polarizer plates and a direction perpendicular the axis direction. Optical through can be reduced along an edge portion of a pixel of a vertical alignment LCD.
Abstract:
A liquid crystal display includes: a liquid crystal layer squeezed between first and second substrates and vertically aligned at a retardation of 300-1000 nm; first and second compensators disposed on the first substrate and having negative biaxial optical anisotropy; a first polarizer disposed on the first and second compensators; and a second polarizer on the second substrate disposed crossed-Nichol with said first polarizer, wherein: the second compensator is disposed between the first substrate and first compensator; an in-plane slow axis of the first compensator is disposed perpendicular to an absorption axis of the first polarizer; the in-plane slow axis of the first compensator is disposed perpendicular to an in-plane slow axis of the second compensator; and a retardation in an in-plane direction of the first compensator is larger than that of the second compensator.
Abstract:
A liquid crystal display includes: a liquid crystal layer squeezed between first and second substrates and vertically aligned at a retardation of 300-1000 nm; first and second compensators disposed on the first substrate and having negative biaxial optical anisotropy; a first polarizer disposed on the first and second compensators; and a second polarizer on the second substrate disposed crossed-Nichol with said first polarizer, wherein: the second compensator is disposed between the first substrate and first compensator; an in-plane slow axis of the first compensator is disposed perpendicular to an absorption axis of the first polarizer; the in-plane slow axis of the first compensator is disposed perpendicular to an in-plane slow axis of the second compensator; and a retardation in an in-plane direction of the first compensator is larger than that of the second compensator.
Abstract:
A liquid crystal display unit has: a pair of opposing substrates; an electrode pattern formed on each of the substrates on an opposing surface side; a vertical alignment film formed on each of the substrates and covering the electrode pattern; a liquid crystal layer squeezed between the substrates; and a pair of polarizer plates formed on the substrates on an opposite side to the side of said liquid crystal layer, wherein an edge of the electrode pattern includes a zigzag pattern parallel to one of axis directions of the polarizer plates and a direction perpendicular the axis direction. Optical through can be reduced along an edge portion of a pixel of a vertical alignment LCD.
Abstract:
A liquid crystal display device includes: a liquid crystal display unit including a plurality of display units each switching between bright display and dark display; a backlight having a light source of a plurality of colors for making light emitted from the light source be incident upon the liquid crystal display unit; and a drive unit for performing field sequential driving through synchronization of the liquid crystal display unit and backlight, wherein the drive unit controls a state of bright/dark display of the liquid crystal display unit to realize a display pattern corresponding to each subframe obtained by dividing a frame into a plurality of subframes, and controls an emission state of the backlight to turn on the backlight of emission color corresponding to a display pattern of an arbitrary first subframe from some timing in the first subframe to some timing in a second subframe immediately after the first subframe.
Abstract:
A liquid crystal display includes a first substrate including a first electrode, a second substrate including a second electrode, and a liquid crystal layer provided between the first substrate and the second substrate which is controlled to a substantially vertical orientation having a pretilt angle smaller than 90 degrees. The first electrode includes a plurality of rectangular openings extending in a direction substantially perpendicular to the orientation direction of liquid crystal molecules at substantially a center of the liquid crystal layer. A plurality of first areas and a plurality of second areas disposed mutually alternately are set in an effective display area in which the first electrode and the second electrode overlap in a planar view. Relative positions of the openings are mutually unmatched relative to at least a part of the plurality of second areas, and the openings are not formed in the plurality of first areas.