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    Liquid crystal device
    1.
    发明公开
    Liquid crystal device 失效

    公开(公告)号：EP0647873A2

    公开(公告)日：1995-04-12

    申请号：EP94115842.0

    申请日：1994-10-07

    申请人： CANON KABUSHIKI KAISHA

    发明人： Nakamura, Katsutoshi,c/o Canon K.K. ,  Kaneko, Shuzo ,c/o Canon K.K. ,  Kishi, Etsuro, c/o Canon K.K. ,  Miyata, Hirokatsu, c/o Canon K.K. ,  Shibata, Masaaki, c/o Canon K.K.

    IPC分类号： G02F1/1337 ,  G02F1/141

    CPC分类号： G02F1/141 ,  G02F1/133753 ,  G02F1/1416

    摘要： A liquid crystal device is constituted by a pair of substrates, and a chiral smectic liquid crystal assuming at least two stable states disposed between the two substrates. At least one of the substrates is subjected to a uniaxial aligning treatment in two directions including a normal direction and a reverse direction substantially opposite to the normal direction. The liquid crystal is placed in an alignment state such that the liquid crystal provides an apparent tilt angle ϑa which is a half of an angle between said two stable states, a tilt angle Ⓗ and a pretilt angle α with respect to a substrate surface, and forms smectic layers forming an inclination angle δ from a normal to the substrate surfaces, satisfying: H⃝/2 and H⃝ > α + δ . According to the liquid crystal device, an undesirable liquid crystal molecular movement along the substrates is effectively suppressed.

    Liquid crystal device
    3.
    发明公开
    Liquid crystal device 失效
    液晶装置

    公开(公告)号：EP0647873A3

    公开(公告)日：1995-11-02

    申请号：EP94115842.0

    申请日：1994-10-07

    申请人： CANON KABUSHIKI KAISHA

    发明人： Nakamura, Katsutoshi,c/o Canon K.K. ,  Kaneko, Shuzo ,c/o Canon K.K. ,  Kishi, Etsuro, c/o Canon K.K. ,  Miyata, Hirokatsu, c/o Canon K.K. ,  Shibata, Masaaki, c/o Canon K.K.

    IPC分类号： G02F1/1337 ,  G02F1/141

    CPC分类号： G02F1/141 ,  G02F1/133753 ,  G02F1/1416

    摘要： A liquid crystal device is constituted by a pair of substrates, and a chiral smectic liquid crystal assuming at least two stable states disposed between the two substrates. At least one of the substrates is subjected to a uniaxial aligning treatment in two directions including a normal direction and a reverse direction substantially opposite to the normal direction. The liquid crystal is placed in an alignment state such that the liquid crystal provides an apparent tilt angle ϑa which is a half of an angle between said two stable states, a tilt angle Ⓗ and a pretilt angle α with respect to a substrate surface, and forms smectic layers forming an inclination angle δ from a normal to the substrate surfaces, satisfying: H⃝/2 and H⃝ > α + δ . According to the liquid crystal device, an undesirable liquid crystal molecular movement along the substrates is effectively suppressed.

    摘要翻译： 液晶装置由一对基板和在两基板之间呈现至少两个稳定状态的手性近晶型液晶构成。 至少一个基板在包括与法线方向大致相反的法线方向和相反方向的两个方向上经受单轴对准处理。 液晶处于对齐状态，使得液晶提供表观倾斜角θa，该倾斜角θa是所述两个稳定状态之间的角度的一半，相对于基板表面的倾斜角θ和预倾斜角α，以及 形成从法线到衬底表面形成倾角δ的近晶层，满足：H 2/2 <θa≤H8和H 8>α+δ。 根据该液晶装置，有效地抑制了沿着基板的不期望的液晶分子运动。