发明授权
US5764328A Liquid crystal device with plural ferroelectric or antiferroelectric
layer tilt angles per pixel
失效
每个像素具有多个铁电或反铁电层倾斜角的液晶装置
- 专利标题: Liquid crystal device with plural ferroelectric or antiferroelectric layer tilt angles per pixel
- 专利标题(中): 每个像素具有多个铁电或反铁电层倾斜角的液晶装置
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申请号: US793462申请日: 1997-02-26
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公开(公告)号: US5764328A公开(公告)日: 1998-06-09
- 发明人: Sachiko Kawada , Yasushi Suzuki , Shinya Kondo , Rintarou Takahashi
- 申请人: Sachiko Kawada , Yasushi Suzuki , Shinya Kondo , Rintarou Takahashi
- 申请人地址: JPX Tokyo
- 专利权人: Citizen Watch Co., Ltd.
- 当前专利权人: Citizen Watch Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX7-167445 19950703; JPX7-202969 19950809
- 主分类号: G02F1/1337
- IPC分类号: G02F1/1337 ; G02F1/141 ; G02F1/13
摘要:
A liquid crystal device used for electro-optical devices, in which each parameter of the liquid crystal having layer structures is specified to provide a liquid crystal high in stress resistance and capable of gray scale display. The liquid crystal held between a pair of parallel substrates is either ferroelectric or antiferroelectric and represents layer structures. A plurality of substrate interface tilt angles can be set for the layer structures. The layer structures can be configured asymmetric or symmetric about a plane intermediate between the parallel substrates. With this configuration, a liquid crystal device is constructed having a plurality of layer structures including at least one layer structure, which has (1) a substrate interface layer tilt angle of 0.degree. to 3.degree. and the c director pretilt of 3.degree. to 5.degree., or (2) a substrate interface layer tilt angle of 4.degree. to 7.degree. and the c director pretilt of 0.degree. to 3.degree., or (3) a substrate interface layer tilt angle of 8.degree. to 20 .degree. and the c director pretilt of 9.degree. to 90.degree. or less.