发明名称 |
Polycarbonate-based oriented film and retardation film |
摘要 |
A uniaxially or biaxially oriented film which is made from a specific polycarbonate having a fluorene ring and a glass transition temperature of 165° C. or higher and which has a heat shrinkage factor when it is heated at 90° C. for 500 hours of 0.1% or less, and a ratio of retardation R(450) within the film plane at a wavelength of 450 nm to retardation R(550) within the film plane at a wavelength of 550 nm of 1 to 1.06. This film can be used in a high-quality liquid crystal display device such as a vertical alignment liquid crystal display device and is useful as a retardation film which almost solves a frame problem.
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申请公布号 |
US2005163943(A1) |
申请公布日期 |
2005.07.28 |
申请号 |
US20040487765 |
申请日期 |
2004.02.26 |
申请人 |
UCHIYAMA AKIHIKO;ONO YUHEI;IKEDA YOSHINORI |
发明人 |
UCHIYAMA AKIHIKO;ONO YUHEI;IKEDA YOSHINORI |
分类号 |
B32B27/08;C08G64/06;C08J5/18;G02B5/30;(IPC1-7):C09K19/00;G02F1/133 |
主分类号 |
B32B27/08 |
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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