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    • 12. 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。