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    • 19. 发明授权
    • Liquid crystal display device having optical delay plates
    • 具有光学延迟板的液晶显示装置
    • US5032008A
    • 1991-07-16
    • US376659
    • 1989-07-07
    • Tomiaki YamamotoAkio MurayamaSusumu KondoHitoshi HatoShinichi KamagamiShoichi Matsumoto
    • Tomiaki YamamotoAkio MurayamaSusumu KondoHitoshi HatoShinichi KamagamiShoichi Matsumoto
    • G02F1/133G02F1/1335G02F1/13363G02F1/139
    • G02F1/13363G02F1/1397G02F2202/40G02F2413/02G02F2413/07G02F2413/08
    • This invention discloses a liquid crystal display device including a liquid crystal cell having two substrates, arranged substantially parallel to each other, and having electrodes on their opposing surfaces, and a liquid crystal composition held between the substrates, first and second polarizers arranged at both sides of the liquid crystal cell, a first optical delay plate arranged between the liquid crystal cell and the second polarizer, and a second optical delay plate arranged between the first optical delay plate and the second polarizer, wherein liquid crystal molecules of the liquid crystal composition are arranged in twisted mode from a second polarizer side to a first polarizer side, the first and second optical delay plates are arranged such that optical axes thereof cross to form an acute angle, and a twist direction of the liquid crystal molecules in the state of twisted mode is the same as a direction from the optical axis of the second optical delay plate toward the first optical delay plate shifted by the acute angle. A display performed by the liquid crystal display device of this invention is a high-contrast, bright, and achromatic b/w display. The liquid crystal display device of this invention has a wide viewing angle. The liquid crystal display device of this invention is inexpensive.
    • 本发明公开了一种液晶显示装置,其特征在于,具有:具有两个基板的液晶单元的液晶显示装置,所述液晶单元基本上彼此平行配置,并且在相对的表面上具有电极,并且在所述基板之间保持有液晶组合物, 布置在液晶单元和第二偏振器之间的第一光学延迟板和布置在第一光学延迟板和第二偏振器之间的第二光学延迟板,其中液晶组成的液晶分子是 以第二偏振器侧到第一偏振器侧的扭曲模式布置,第一和第二光学延迟板被布置成使得其光轴交叉以形成锐角,并且扭转状态下的液晶分子的扭转方向 模式与从第二光学延迟板的光轴朝向第一光束的方向相同 t光延迟板偏移锐角。 由本发明的液晶显示装置进行的显示是高对比度,明亮和消色差的b / w显示。 本发明的液晶显示装置具有宽视角。 本发明的液晶显示装置便宜。