Invention Grant
US08305529B2 Process and apparatus for producing optical compensation film, optical compensation film, polarizer, and liquid-crystal display
有权
用于制造光学补偿膜,光学补偿膜,偏振器和液晶显示器的工艺和设备
- Patent Title: Process and apparatus for producing optical compensation film, optical compensation film, polarizer, and liquid-crystal display
- Patent Title (中): 用于制造光学补偿膜,光学补偿膜,偏振器和液晶显示器的工艺和设备
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Application No.: US12933650Application Date: 2009-03-13
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Publication No.: US08305529B2Publication Date: 2012-11-06
- Inventor: Kazuhiro Oki , Hirokazu Nishimura , Akihiro Matsuoka , Kazuhiro Shiojiri , Shun Nakamura
- Applicant: Kazuhiro Oki , Hirokazu Nishimura , Akihiro Matsuoka , Kazuhiro Shiojiri , Shun Nakamura
- Applicant Address: JP Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2008-073745 20080321
- International Application: PCT/JP2009/054919 WO 20090313
- International Announcement: WO2009/116470 WO 20090924
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
A process for producing an optical compensation film comprises a liquid crystal layer application step (10) of applying a liquid crystal layer coating solution containing a liquid crystal compound to an alignment layer on a surface of a transparent substrate (4c) that is continuously transported; a liquid crystal layer drying step (11) of drying the liquid crystal layer; a cooling and curing step of curing the liquid crystal layer while cooling the liquid crystal layer to a temperature lower than a drying temperature used in the drying step; and a heating and curing step of curing the alignment layer while heating the alignment layer to a temperature higher than a cooling temperature used in the cooling and curing step. The process enables the durability and damage resistance as well as the optical characteristics of the optical compensation film to be independently controlled.
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