发明名称 |
ANISOTROPISK VAESKECELLE |
摘要 |
Disposed between two base plates with control electrode is a cholesteric liquid crystal which exists in two optically different, stable structures and has a dielectrical anisotropy which is positive at low frequencies and negative at higher frequencies, as a result of which the liquid crystal assumes one of the two stable structures as a result of applying a low-frequency voltage and the other stable structure as a result of applying a higher-frequency voltage. The two optically different structures have long-term stability with no voltage applied. This makes energy-saving displays possible. <IMAGE> |
申请公布号 |
NO841709(A) |
申请公布日期 |
1984.10.30 |
申请号 |
NO19840001709 |
申请日期 |
1984.04.27 |
申请人 |
HOFFMANN-LA ROCHE & CO, AG F., |
发明人 |
GERBER, PAUL, |
分类号 |
C09K19/50;G02F1/133;G02F1/1343;G02F1/137;G02F1/139;G09F9/30;G09G3/36;(IPC1-7):G02F/ |
主分类号 |
C09K19/50 |
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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