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    Liquid crystal display device with wide viewing angle characteristics
    2.
    发明公开
    Liquid crystal display device with wide viewing angle characteristics 失效
    Flüssigkristallanzeigevorrichtungmit grossen Sichtwinkel

    公开(公告)号：EP0732612A1

    公开(公告)日：1996-09-18

    申请号：EP96104131.6

    申请日：1996-03-15

    申请人： HITACHI, LTD.

    发明人： Ohta, Masayuki ,  Yanagawa, Kazuhiko ,  Ashizawa, Keiichiro ,  Mishima, Yasuyuki ,  Ogawa, Kazuhiro ,  Ohe, Masahito ,  Yanai, Masahiro ,  Kondo, Katsumi

    IPC分类号： G02F1/1343 ,  G02F1/136

    CPC分类号： G02F1/133512 ,  G02F1/134363 ,  G02F1/136286

    摘要： The invention concerns active matrix liquid crystal display devices comprising a layer of liquid crystal molecules (LC) sandwiched between two substrates (SUB1, SUB2) polarizing means (POL1, POL2) and a pixel electrode (PX) and a counterelectrode (CT) formed in each pixel between the first substrate (SUB1) and the liquid crystal layer for twisting the liquid crystal molecules (LC) through an electric field between the pixel electrode (PX) and the counterelectrode (CT) and having a component (EDR) in parallel with the first substrate (SUB1), wherein the dielectric anisotropy Δε and the effective thickness d eff of the liquid crystal layer, the width Wp of the pixel electrode (PX) in the short-side direction, the width Wc of the counterelectrode (CT) in the short-side direction, and the gap L between the pixel electrode (PX) and the counterelectrode (CT) satisfy the following relationships: Δε > 0, 2.8 µm ≦ d eff ≦ 4.5 µm, 1.2 x d eff ≦ Wp ≦ L/1.2, and 1.2 x d eff ≦ Wc ≦ L/1.2, or Δε 4.2 µm ≦ d eff ≦ 8.0 µm, 1.2 x d eff ≦ Wp ≦ L/1.2, and 1.2 x d eff ≦ Wc ≦ L/1.2.
    This concept leads to a wide viewing angle like that of cathode ray tubes, improved picture quality and lower power consumption.

    摘要翻译： 本发明涉及有源矩阵液晶显示装置，其包括夹在两个基板（SUB1，SUB2）偏振装置（POL1，POL2）和像素电极（PX）之间的液晶分子层（LC）和形成在其中的反电极 第一基板（SUB1）和用于通过像素电极（PX）和反电极（CT）之间的电场扭转液晶分子（LC）并且具有与 第一基板（SUB1），其中介电各向异性DELTAε和液晶层的有效厚度deff，像素电极（PX）在短边方向上的宽度Wp，反电极（CT）的宽度Wc 在像素电极（PX）和反电极（CT）之间的间隙L在短边方向上满足以下关系： 和或 < MATH> 和 ncept导致像阴极射线管那样的宽视角，改善的图像质量和更低的功耗。