发明名称 |
Electro-optical device defined by relationship of data voltage, residual voltage, spontaneous polarization, and liquid crystal time constant and capacitance |
摘要 |
A liquid crystal electro-optical device has electrodes, a pair of substrates at least one of which is transparent, thin-film transistors provided on one of the pair of substrates, and a ferroelectric or antiferroelectric liquid crystal material, or a ferroelectric or antiferroelectric liquid crystal material mixed with a polymer compound held between the pair of substrates. A particular relationship is established between spontaneous polarization of the liquid crystal material, a capacitance between pixel electrodes, a pulse voltage applied to gates of the transistors, a time constant of a pixel, a residual pixel voltage immediately before application of the next pulse, and other parameters.
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申请公布号 |
US5598284(A) |
申请公布日期 |
1997.01.28 |
申请号 |
US19940358179 |
申请日期 |
1994.12.16 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
KOGUSHI, NORIAKI;NISHI, TAKESHI;HIROKI, MASAAKI;YAMAGUCHI, TOSHIHARU;KONUMA, TOSHIMITSU |
分类号 |
G02F1/1333;G02F1/133;G02F1/136;G02F1/1368;G02F1/141;G09G3/20;G09G3/36;H01L29/78;H01L29/786;(IPC1-7):G02F1/133;G02F1/134;G02F1/13 |
主分类号 |
G02F1/1333 |
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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