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    • 44. 发明授权
    • Liquid crystal device, image display apparatus and image forming
apparatus
    • 液晶装置,图像显示装置和图像形成装置
    • US5986736A
    • 1999-11-16
    • US637374
    • 1996-04-25
    • Yasuto KoderaKenji OnumaBunryo SatoTadashi MiharaMasamichi SaitoTakatsugu WadaKazuhiro AoyamaSeishi MiuraKouki Nukanobu
    • Yasuto KoderaKenji OnumaBunryo SatoTadashi MiharaMasamichi SaitoTakatsugu WadaKazuhiro AoyamaSeishi MiuraKouki Nukanobu
    • G02F1/1337G02F1/1339G02F1/141
    • G02F1/1339G02F1/133753G02F1/141
    • A liquid crystal device is formed by a pair of substrates each having thereon electrodes, and a liquid crystal disposed between the substrates so as to be movable along surfaces of the substrates. The liquid crystal is disposed over regions extending between the surfaces of the substrates including an effective optical modulation region, a first peripheral region outside the effective optical modulation region and a second peripheral region formed along a part or an entirety of outer periphery of the first peripheral region. The liquid crystal is disposed to have a higher liquid crystal molecular pretilt angle in the first peripheral region than in the effective optical modulation region. The liquid crystal is disposed in a random alignment state free from uniaxial alignment characteristic or in a layer structure in the second peripheral region. As a result, the liquid crystal molecular movement along the extension of substrates is suppressed in the effective optical modulation region and in the second peripheral region and relatively allowed in the first peripheral region, so that the impurities in the liquid crystal are confined in the second peripheral region while avoiding the liquid crystal thickness irregularity.
    • 液晶装置由各自具有电极的一对基板和设置在基板之间的液晶形成,以便能够沿着基板的表面移动。 液晶布置在基板表面之间延伸的区域上,该区域包括有效的光学调制区域,有效光学调制区域外的第一周边区域和沿着第一外围的外周的一部分或全部形成的第二周边区域 地区。 液晶被配置为在第一周边区域中具有比在有效光学调制区域中更高的液晶分子预倾角。 液晶以无轴对准特性或第二周边区域的层结构的随机取向状态配置。 结果,在有效光调制区域和第二周边区域中抑制了沿着基板延伸的液晶分子运动,并且在第一周边区域中相对允许液晶分子运动,使得液晶中的杂质被限制在第二 周边区域,同时避免液晶厚度不规则。
    • 48. 发明授权
    • Liquid crystal device
    • 液晶装置
    • US5293534A
    • 1994-03-08
    • US920884
    • 1992-07-28
    • Tadashi Mihara
    • Tadashi Mihara
    • G02F1/1335G02F1/141G02F1/133
    • G02F1/141G02F1/1416G02F2001/133531
    • A liquid crystal device is formed by disposing a ferroelectric smectic liquid crystal having two stable molecular orientation states between opposite electrodes formed on a pair of substrates, and disposing a polarizer and an analyzer in proximity with the substrates so that one of the two molecular orientation states provides a bright state and the other molecular orientation state provides a dark state. In case where a domain with a minor areal size changing with time occurs in an effective display area in either one (or both) of the bright and dark display states of the display area, the polarizer and analyzer are disposed in such a position that the domain with a minor areal size changing with time is present (in a larger total area when it is present) in the bright state (than when it is present in the dark state), whereby improvements are attained in respects of flickering persistence, contrast and/or transmittance.
    • 通过在形成于一对基板上的相对电极之间配置具有两个稳定的分子取向状态的铁电体晶形成液晶来形成液晶装置,并且将偏振片和分析器配置在基板附近,使两个分子取向状态 提供了一个明亮的状态,另一个分子取向状态提供了一个黑暗的状态。 在显示区域的明暗显示状态中的任一个(或两者)中的有效显示区域中发生具有随时间变化的小面积尺寸的区域的情况下,将偏振器和分析器设置在如下位置: 在明亮的状态(存在于黑暗状态下)存在具有随时间变化的小面积尺寸的区域(在存在的较大总区域中),从而在闪烁持久性,对比度和对比度方面获得改进 /或透光率。