发明名称 |
Liquid crystal device and display apparatus |
摘要 |
A liquid crystal device is formed by applying an alignment film on at least one of a pair of substrates sandwiching a liquid crystal, preferably a chiral smectic liquid crystal. The alignment is formed by a dehydro-cyclization product of a polyamide acid which in turn is a reaction product of naphthalenetetracarboxylic acid or its derivative with a diamine or its derivative. The liquid crystal device provides a high contrast display, particularly by multiplexing drive, which is free from after-image because of quick responsiveness.
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申请公布号 |
US5419932(A) |
申请公布日期 |
1995.05.30 |
申请号 |
US19940185164 |
申请日期 |
1994.01.24 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
TOGANO, TAKESHI;TAKIGUCHI, TAKAO;TAKAO, HIDEAKI;HANYU, YUKIO;ASAOKA, MASANOBU;IWAKI, TAKASHI |
分类号 |
G02F1/133;C08G73/10;G02F1/1337;(IPC1-7):G02F1/133 |
主分类号 |
G02F1/133 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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