Invention Grant
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
- Patent Title: Optical compensation films produced by a carrier-web-casting process
- Patent Title (中): 通过载体网络铸造工艺生产的光学补偿膜
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Application No.: US11254109Application Date: 2005-10-18
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Publication No.: US07713595B2Publication Date: 2010-05-11
- Inventor: Jehuda Greener , James F. Elman , Jon A. Hammerschmidt , Elizabeth K. Priebe
- Applicant: Jehuda Greener , James F. Elman , Jon A. Hammerschmidt , Elizabeth K. Priebe
- Applicant Address: JP Ibaraki-Shi, Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Ibaraki-Shi, Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Main IPC: C09K19/00
- IPC: C09K19/00 ; G02F1/1333 ; G02F1/1335

Abstract:
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.
Public/Granted literature
- US20070087132A1 Optical compensation films produced by a carrier-web-casting process Public/Granted day:2007-04-19
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