摘要:
A MVA type liquid crystal panel is slow in a response speed when a black state at a drive voltage about 1V is switched to a low brightness halftone state at the drive voltage about 2 to 3V. According to the present invention, in a liquid crystal display device for driving the MVA type liquid crystal panel, when a liquid crystal pixel at a pixel electrode is changed from a first transmittance to a second transmittance greater than the first transmittance, a drive voltage greater than a fist target drive voltage in correspondence with a second transmittance is applied to the pixel electrode in a first frame period of changing to the second transmittance, and the first target display voltage is applied from a second frame period. According to the present invention, even when either switching is performed from a black state to a low brightness halftone state, from the black state to a high brightness halftone state, for from the black state to a white state, a response time is shortened, and the switching can be performed without generating an overshoot.
摘要:
A MVA type liquid crystal panel is slow in a response speed when a black state at a drive voltage about 1V is switched to a low brightness halftone state at the drive voltage about 2 to 3V. According to the present invention, in a liquid crystal display device for driving the MVA type liquid crystal panel, when a liquid crystal pixel at a pixel electrode is changed from a first transmittance to a second transmittance greater than the first transmittance, a drive voltage greater than a fist target drive voltage in correspondence with a second transmittance is applied to the pixel electrode in a first frame period of changing to the second transmittance, and the first target display voltage is applied from a second frame period. According to the present invention, even when either switching is performed from a black state to a low brightness halftone state, from the black state to a high brightness halftone state, for from the black state to a white state, a response time is shortened, and the switching can be performed without generating an overshoot.
摘要:
A MVA type liquid crystal panel is slow in a response speed when a black state at a drive voltage about 1V is switched to a low brightness halftone state at the drive voltage about 2 to 3V. According to the present invention, in a liquid crystal display device for driving the MVA type liquid crystal panel, when a liquid crystal pixel at a pixel electrode is changed from a first transmittance to a second transmittance greater than the first transmittance, a drive voltage greater than a fist target drive voltage in correspondence with a second transmittance is applied to the pixel electrode in a first frame period of changing to the second transmittance, and the first target display voltage is applied from a second frame period. According to the present invention, even when either switching is performed from a black state to a low brightness halftone state, from the black state to a high brightness halftone state, for from the black state to a white state, a response time is shortened, and the switching can be performed without generating an overshoot.
摘要:
The liquid crystal display including: a first substrate including a first electrode to which a drive voltage is applied, and a first alignment film formed on the first electrode and aligning liquid crystal molecules vertically to a surface of the first alignment film when the drive voltage is not applied; a second substrate including a second electrode opposed to the first electrode, and a second alignment film formed on the second electrode and aligning the liquid crystal molecules vertically to a surface of the second alignment film when the drive voltage is not applied; and a liquid crystal layer sealed between the first substrate and the second substrate and having negative dielectric constant anisotropy, a projection for restricting a tilting direction of the liquid crystal molecules when the drive voltage is applied between the first electrode and the second electrode, disposed between the first electrode and the first alignment film, and/or between the second electrode and the second alignment film. The first alignment film and/or the second alignment film have weaker vertical alignment restrictiveness in a region where the projection is formed than that in a region where the projection is not formed.
摘要:
A liquid crystal display device comprises: a pair of substrates, each having an electrode on an inner surface of said substrate: an alignment film on each the electrode; a liquid crystal material between the alignment films; a plurality of display cells in the liquid crystal material, each controlled by a voltage applied from the electrodes, each display cell comprising: a plurality of domains, each having mutually different pre-tilt angle, the pre-tilt angle being determined by said alignment films forming the domains; a separator region provided along a boundary of said domains, for preventing an influence of pre-tilt angle of adjacent domain, so that liquid crystal molecules in the separator region are substantially vertical with respect to the alignment film regardless to the voltage applied thereto. The separator region may be constituted by arranging the facing two alignment films such that at the center of the cell both the facing alignment films have the higher pretilt angle.
摘要:
The invention relates to a transflective liquid crystal display and a method of manufacturing the same and provides a transflective liquid crystal display which can achieve high display characteristics in both of reflective and transmissive modes and a method of manufacturing the same. The display has a pair of substrates provided opposite to each other, a liquid crystal sealed between the pair of substrates, a plurality of pixel regions each having a reflective area which reflects light from the side of one of the substrates and a transmissive area which transmits light from the side of the other of the substrates toward the one of the substrates, and an ultraviolet-hardened material which is a product of polymerization of a polymeric component mixed in the liquid crystal with ultraviolet light and which is formed at a substrate interface in the reflective area to control the alignment of the liquid crystal in the reflective area.
摘要:
The invention relates to a transflective liquid crystal display and a method of manufacturing the same and provides a transflective liquid crystal display which can achieve high display characteristics in both of reflective and transmissive modes and a method of manufacturing the same. The display has a pair of substrates provided opposite to each other, a liquid crystal sealed between the pair of substrates, a plurality of pixel regions each having a reflective area which reflects light from the side of one of the substrates and a transmissive area which transmits light from the side of the other of the substrates toward the one of the substrates, and an ultraviolet-hardened material which is a product of polymerization of a polymeric component mixed in the liquid crystal with ultraviolet light and which is formed at a substrate interface in the reflective area to control the alignment of the liquid crystal in the reflective area.
摘要:
A liquid crystal display having a first substrate on which a pixel electrode is formed, a second substrate on which an opposed electrode opposed to the first pixel electrode is formed, and a liquid crystal sealed in the space between the first and second substrates, wherein the interval between the pixel electrode and the opposed electrode in the area near the edge of the pixel electrode id longer than that in the other area than the area near the edge of the pixel electrode. Therefore the liquid crystal display has good display characteristics. A method for manufacturing such a liquid crystal display is also disclosed.
摘要:
The present liquid crystal display is obtained by disposing, between two parallel substrates on which a pair of electrodes are formed, two alignment control films, and a liquid crystal composition comprising a liquid crystal and a polymerizable compound that can be polymerized by light, a heat or a combination thereof, and then polymerizing the polymerizable compound. If the liquid crystal to be used is one having a negative dielectric constant anisotropy, the alignment control films are vertical alignment control films having been subjected to rubbing processing so that the rubbing directions are parallel to each other, and when voltage is not applied, only liquid crystal molecules in a specific area in a pixel present the splay alignment. According to the present invention, a liquid crystal display device having a high-speed response can be implemented.
摘要:
The present liquid crystal display is obtained by disposing, between two parallel substrates on which a pair of electrodes are formed, two alignment controol films, and a liquid crystal composition comprising a liquid crystal and a polymerizable compound that can be polymerized by light, a heat or a combination thereof, and then polymerizing the polymerizable compound. If the liquid crystal tobe used is one having a negative dielectric constant anisotropy, the alignment control films are vertical alignment control films having been subjected to rubbing processing so that the rubbing directions are parallel to each other, and when voltage is not applied, only liquid crystal molecules in a specific area in a pixel present the splay alignment. According to the present invention, a liquid crystal display device having a high-speed response can be implemented.