- 专利标题: Purification of liquid crystals and liquid crystal composition
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申请号: US360088申请日: 1994-12-20
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公开(公告)号: US5540857A公开(公告)日: 1996-07-30
- 发明人: Osamu Hirai , Noriji Tashiro , Osamu Watanabe , Hiroshi Nishizawa , Kenji Suzuki
- 申请人: Osamu Hirai , Noriji Tashiro , Osamu Watanabe , Hiroshi Nishizawa , Kenji Suzuki
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi Chemical Co., Ltd.
- 当前专利权人: Hitachi Chemical Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX4-335961 19921216; JPX4-346782 19921225; JPX5-023140 19930212
- 主分类号: C09K19/52
- IPC分类号: C09K19/52 ; G02F1/13
摘要:
Liquid crystals purified by treating with porous particles of a compound having one or more imide groups, or a liquid crystal composition comprising one or more liquid crystals and porous particles of a compound having one or more imide groups can provide a liquid crystal cell having a high voltage retention rate and a liquid crystal display device having high display properties.
公开/授权文献
- US5030227A Balloon dilation catheter 公开/授权日:1991-07-09
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