发明授权
- 专利标题: GH LCD having particular parameters and characteristics
- 专利标题(中): GH LCD具有特定的参数和特性
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申请号: US707768申请日: 1996-09-04
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公开(公告)号: US6094252A公开(公告)日: 2000-07-25
- 发明人: Yasuhisa Itoh , Naofumi Kimura
- 申请人: Yasuhisa Itoh , Naofumi Kimura
- 申请人地址: JPX Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JPX Osaka
- 优先权: JPX7-228365 19950905
- 主分类号: G02F1/139
- IPC分类号: G02F1/139 ; G02F1/13
摘要:
A liquid crystal display device having a liquid crystal cell including: a pair of substrates at least one of which has light transparency; a chiral nematic liquid crystal layer having positive anisotropy of dielectric constant, disposed between the pair of substrates; and a voltage applying circuit for applying a voltage to the liquid crystal layer, wherein the liquid crystal layer contains a pleochroic dye, and liquid crystal molecules in the liquid crystal layer are twisted with respect to a helical axis perpendicular to surfaces of the pair of substrates, a twist angle of the liquid crystal molecules from one of the pair of substrates to the other of the pair of substrates is in a range selected from the group consisting of a range from 0.degree. to 50.degree., a range from 140.degree. to 250.degree., and a range of twist angles obtained by adding an integral multiple of n radian to the twist angles in the range from 0.degree. to 50.degree. and in the range from 140.degree. to 250.degree..