发明名称 |
Ferroelectric liquid crystal display device having an A.C. holding voltage |
摘要 |
A liquid crystal display device utilizing a ferroelectric liquid crystal, e.g., a chiral smectic liquid crystal aligned to establish two bi-stable display states. The display device is driven in a time-sharing mode. The change of the bi-stable display states is effected by applying a selected voltage to the changed ferro-electric liquid crystal. Thereafter the display state is held by applying an A.C. pulse voltage.
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申请公布号 |
USRE37333(E1) |
申请公布日期 |
2001.08.21 |
申请号 |
US19920954290 |
申请日期 |
1992.09.30 |
申请人 |
SEIKO INSTRUMENTS INC. |
发明人 |
HARADA TAKAMASA;TAGUCHI MASAAKI;IWASA KOJI |
分类号 |
G09G3/20;G09G3/36;(IPC1-7):G02F1/13 |
主分类号 |
G09G3/20 |
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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