发明授权
- 专利标题: Liquid crystal display element
- 专利标题(中): 液晶显示元件
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申请号: US234261申请日: 1981-02-13
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公开(公告)号: US4381886A公开(公告)日: 1983-05-03
- 发明人: Hisao Yokokura , Teruo Kitamura , Ren Ito , Fumio Nakano , Hirosada Morishita , Mikio Sato , Yasuhiko Kando
- 申请人: Hisao Yokokura , Teruo Kitamura , Ren Ito , Fumio Nakano , Hirosada Morishita , Mikio Sato , Yasuhiko Kando
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX55-16654 19800215
- 主分类号: G02F1/1337
- IPC分类号: G02F1/1337 ; G02F1/13
摘要:
A liquid crystal display element which may have a multi-layer structure comprising substrates having electrodes and liquid crystal orientation controlling films on the sides thereof facing a liquid crystal layer and one or more liquid crystal layers interposed between said substrates, characterized in that the liquid crystal orientation controlling film is made from a copolymer produced by reacting a dibasic acid dihydrazide, a diamine and a tetracarboxylic acid dianhydride, followed by ring closure and dehydration with heating, is excellent in transparency and the electrode (partially reflected) pattern is hardly observable.
公开/授权文献
- US06108218A Switching power supply with power factor control 公开/授权日:2000-08-22
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