发明授权
US5982463A Liquid crystal display device capable of displaying color without a
color filter
失效
液晶显示装置,能够在没有滤色器的情况下显示颜色
- 专利标题: Liquid crystal display device capable of displaying color without a color filter
- 专利标题(中): 液晶显示装置,能够在没有滤色器的情况下显示颜色
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申请号: US934874申请日: 1997-09-22
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公开(公告)号: US5982463A公开(公告)日: 1999-11-09
- 发明人: Hisanori Yamaguchi , Hiroaki Mizuno , Shingo Fujita , Tetsu Ogawa
- 申请人: Hisanori Yamaguchi , Hiroaki Mizuno , Shingo Fujita , Tetsu Ogawa
- 申请人地址: JPX Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX8-252595 19960925
- 主分类号: G02F1/133
- IPC分类号: G02F1/133 ; G02F1/1335 ; G02F1/13363 ; G02F1/139
摘要:
A color liquid crystal display device comprises a liquid crystal cell and a polymer film. The liquid crystal cell comprises a liquid crystal layer positioned between a pair of transparent substrates, on whose innersides transparent electrodes are provided. The polymer film is positioned at one side of the liquid crystal cell. The liquid crystal layer and the polymer film are sandwiched by a pair of polarization films. A twist angle of the liquid crystal layer is set to be a predetermined value. The product of birefringence of the nematic liquid crystal, .DELTA.n.sub.LC, and a thickness of liquid crystal layer, d.sub.LC, .DELTA.n.sub.LC .multidot.d.sub.LC is set to be a predetermined value. The birefringence difference .DELTA.(R)=R.sub.Film -.DELTA.n.sub.LC .multidot.d.sub.LC, which is defined by using the .DELTA.n.sub.LC .multidot.d.sub.LC and retardation of the polymer film, R.sub.Film, is set to be a value between 0.0 .mu.m and 0.1 .mu.m. The present color liquid crystal device can express a black and white display in achromatic color having bright white and with high contrast, and a red display with high color purity.
公开/授权文献
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