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    Liquid crystal display
    5.
    发明授权
    Liquid crystal display 失效
    液晶显示器

    公开(公告)号：US5844649A

    公开(公告)日：1998-12-01

    申请号：US827662

    申请日：1997-04-10

    申请人： Motohiro Yamahara ,  Mitsuaki Hirata ,  Shigeaki Mizushima ,  Noriko Watanabe

    发明人： Motohiro Yamahara ,  Mitsuaki Hirata ,  Shigeaki Mizushima ,  Noriko Watanabe

    IPC分类号： G02B5/30 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/1343

    CPC分类号： G02F1/133753 ,  G02F1/133632 ,  G02F2001/133761

    摘要： A liquid crystal display has a liquid crystal layer that is sandwiched between a pair of electrode substrates in a manner so as to contact alignment films, and also has a liquid crystal display element having optical phase-difference plates placed on both sides thereof. The liquid crystal layer is divided into a first division-section and a second division-section that have different sizes and that are oriented by the alignment films in respectively different directions. Further, with respect to the first division-section that has the larger size, an optical phase difference plate is placed so that the index ellipsoid, which identifies the refractive-index anisotropy of the optical phase-difference plate, has an inclined direction to the optical phase-difference plate that is opposite to the pretilt direction of liquid crystal molecules located in the vicinity of the alignment films. Thus, since biased optical characteristics are properly compensated, viewing-angle characteristics in the case of inclined viewing angles can be improved. Consequently, it becomes possible to eliminate the occurrences of a gradation-inverting phenomenon in the up and down directions as well as right and left directions and a coloring phenomenon in the up and down direction, and consequently to improve contrast while eliminating display unevenness.

    摘要翻译： 液晶显示器具有以与接触取向膜接触的方式夹在一对电极基板之间的液晶层，并且还具有设置在其两侧的光学相位差板的液晶显示元件。 液晶层被分成具有不同尺寸并且分别取向于取向膜的不同方向的第一分割部分和第二分割部分。 此外，对于具有较大尺寸的第一分割部分，放置光学相位差板，使得识别光学相位差板的折射率各向异性的折射率椭圆体具有相对于 光学相位差板与位于配向膜附近的液晶分子的预倾斜方向相反。 因此，由于偏置的光学特性被适当地补偿，所以可以提高在倾斜视角的情况下的视角特性。 因此，可以消除在上下方向以及左右方向上的灰度反转现象和上下方向的着色现象​​的发生，从而在消除显示不均匀性的同时提高对比度。