发明授权
US4979805A Ferroelectric liquid crystal device containing optically active azo or
azoxy benzene type mesomorphic compound with extended life
失效
含有光学活性偶氮或氧化苯类型介晶化合物的铁电液晶装置,寿命延长
- 专利标题: Ferroelectric liquid crystal device containing optically active azo or azoxy benzene type mesomorphic compound with extended life
- 专利标题(中): 含有光学活性偶氮或氧化苯类型介晶化合物的铁电液晶装置,寿命延长
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申请号: US443035申请日: 1989-12-01
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公开(公告)号: US4979805A公开(公告)日: 1990-12-25
- 发明人: Kazuo Yoshinaga , Kazuharu Katagiri
- 申请人: Kazuo Yoshinaga , Kazuharu Katagiri
- 申请人地址: JPX Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX59-151191 19840723; JPX59-151192 19840723
- 主分类号: C07C245/08
- IPC分类号: C07C245/08 ; C07C291/08 ; C09K19/24 ; C09K19/26
摘要:
A ferroelectric liquid crystal composition containing an optically active mesomorphic compound represented by the following formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.2 are respectively an alkyl, and C with * represents an asymmetric carbon atom. The mesomorphic compound provides the ferroelectric liquid crystal composition with an extended operational life in a liquid crystal device.
公开/授权文献
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