发明名称 |
A liquid crystal electro-optic device. |
摘要 |
<p>A liquid crystal electro-optic device is disclosed. The liquid crystal electro-optic device is provided with means for optic compensation in order to realize black-and-white display. A high contrast black-and-white display is realized by providing two retardation films having anisotropy of refractive index for optic compensation so that an angle (a) formed by the drawing direction (12) of one of the two retardation films and an edge line (15) of a liquid crystal panel of the device and an angle (b) formed by the drawing direction (11) of the other one of the two retardation films and the edge line satisfy the expressions: (a)</=90 DEG ; (b)</=90 DEG ; and ¦(a)-(b)¦</=40 DEG . <IMAGE></p> |
申请公布号 |
EP0472111(A2) |
申请公布日期 |
1992.02.26 |
申请号 |
EP19910113670 |
申请日期 |
1991.08.14 |
申请人 |
SEL SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
FUJUI, TAKASHI |
分类号 |
G02B5/30;G02F1/133;G02F1/1335;G02F1/13363;G02F1/139 |
主分类号 |
G02B5/30 |
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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