发明名称 |
Aligning method of liquid crystal, process for producing liquid crystal device, and liquid crystal device produced by the process |
摘要 |
An aligning method of a chiral smectic liquid crystal includes the steps of: disposing a chiral smectic liquid crystal between a pair of electrode plates, the chiral smectic liquid crystal having a layer spacing-changing characteristic providing a layer spacing which increases on temperature decrease in a first temperature range in smectic A phase; and subjecting the chiral smectic liquid crystal to a heat treatment including a sequence of cooling from a higher temperature phase to a second temperature range in smectic A phase including at least a portion of the first temperature range, at least one cycle of heating and cooling within the second temperature range, and further cooling to a smectic phase lower than smectic phase. The heat treatment, particularly at least one cycle of heating and cooling in smectic A phase, is effective in suppressing an alignment (orientation) irregularity due to the presence of two regions different in characteristics, thus improving a drive margin.
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申请公布号 |
US6083574(A) |
申请公布日期 |
2000.07.04 |
申请号 |
US19980123330 |
申请日期 |
1998.07.28 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
ASAO, YASUFUMI;HANYU, YUKIO;SATO, KOICHI;TERADA, MASAHIRO;NOGUCHI, KOJI |
分类号 |
G02F1/1337;C09K19/02;C09K19/04;C09K19/20;C09K19/22;G02F1/13;G02F1/141;(IPC1-7):G02F1/133;C09K19/52 |
主分类号 |
G02F1/1337 |
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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