发明授权
US5138474A Liquid crystal display with compensator having two films with positive and negative intrinsic birefringence, respectively 失效
液晶显示器,带有两个带有正负极性内在感光元件的补偿器

  • 专利标题: Liquid crystal display with compensator having two films with positive and negative intrinsic birefringence, respectively
  • 专利标题(中): 液晶显示器,带有两个带有正负极性内在感光元件的补偿器
  • 申请号: US603483
    申请日: 1990-10-26
  • 公开(公告)号: US5138474A
    公开(公告)日: 1992-08-11
  • 发明人: Kohei Arakawa
  • 申请人: Kohei Arakawa
  • 申请人地址: JPX Kanagawa
  • 专利权人: Fuji Photo Film Co., Ltd.
  • 当前专利权人: Fuji Photo Film Co., Ltd.
  • 当前专利权人地址: JPX Kanagawa
  • 优先权: JPX1-281247 19891027; JPX2-242982 19900913
  • 主分类号: G02F1/13363
  • IPC分类号: G02F1/13363
Liquid crystal display with compensator having two films with positive
and negative intrinsic birefringence, respectively
摘要:
A liquid crystal display comprising a liquid crystal element, at least two birefringent films and a pair of polarizing sheets so arranged that said element and said films are held therebetween, said liquid crystal element comprising a cell composed of two sheets of substrates and a twisted nematic liquid crystal, each substrate being provided with an electrode on one surface thereof, said substrates being arranged so that the electrodes are opposed to each other and said twisted nematic liquid crystal being held between said electrodes, characterized in that said birefringent films are composed of at least one uniaxially stretched film of a polymer having a positive intrinsic birefringence and light transmission properties and at least one uniaxially stretched film of a polymer having a negative intrinsic birefringence and light transmission properties.
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