发明名称 |
Negative retardation film |
摘要 |
The invention relates to a negative birefringent retardation film comprising polymerised liquid crystal (LC) material with helically twisted structure and planar orientation, its use in compensators and electrooptical displays like liquid crystal displays, and to compensators and liquid crystal displays comprising such a negative retardation film.
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申请公布号 |
US7477343(B2) |
申请公布日期 |
2009.01.13 |
申请号 |
US20070758223 |
申请日期 |
2007.06.05 |
申请人 |
MERCK PATENT GMBH |
发明人 |
SKJONNEMAND KARL;PARRI OWAIN LLYR;GRAHAM DONALD GORDON;PERRETT TARA |
分类号 |
G02F1/1335;G02B5/30;G02F1/13363 |
主分类号 |
G02F1/1335 |
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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