发明授权
US07713595B2 Optical compensation films produced by a carrier-web-casting process
有权
通过载体网络铸造工艺生产的光学补偿膜
- 专利标题: Optical compensation films produced by a carrier-web-casting process
- 专利标题(中): 通过载体网络铸造工艺生产的光学补偿膜
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申请号: US11254109申请日: 2005-10-18
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公开(公告)号: US07713595B2公开(公告)日: 2010-05-11
- 发明人: Jehuda Greener , James F. Elman , Jon A. Hammerschmidt , Elizabeth K. Priebe
- 申请人: Jehuda Greener , James F. Elman , Jon A. Hammerschmidt , Elizabeth K. Priebe
- 申请人地址: JP Ibaraki-Shi, Osaka
- 专利权人: Nitto Denko Corporation
- 当前专利权人: Nitto Denko Corporation
- 当前专利权人地址: JP Ibaraki-Shi, Osaka
- 代理机构: Westerman, Hattori, Daniels & Adrian, LLP
- 主分类号: C09K19/00
- IPC分类号: C09K19/00 ; G02F1/1333 ; G02F1/1335
摘要:
A method of forming an optical compensation film includes coating one or more first layers and one or more second layers onto a carrier substrate, and stretching the first layers and second layers simultaneously. The one or more first layers include a polymer having an out-of-plane birefringence (Δnth) not more negative than −0.005 and not more positive than +0.005, and the one or more second layers include a polymer having an out-of-plane birefringence more negative than −0.005 or more positive than +0.005. The overall in-plane retardation (Rin) of the optical compensation film is greater than 20 nm and the out-of-plane retardation (Rth) of the optical compensation film is more negative than −20 nm or more positive than +20 nm.