Invention Grant
- Patent Title: Optical film and liquid crystal display
- Patent Title (中): 光学薄膜和液晶显示屏
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Application No.: US13121217Application Date: 2009-09-18
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Publication No.: US08497959B2Publication Date: 2013-07-30
- Inventor: Taku Hatano
- Applicant: Taku Hatano
- Applicant Address: JP Tokyo
- Assignee: Zeon Corporation
- Current Assignee: Zeon Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2008-250161 20080929
- International Application: PCT/JP2009/066443 WO 20090918
- International Announcement: WO2010/035720 WO 20100401
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
An optical film includes: a layer A formed of a resin composition P1 containing a resin x1 having a positive intrinsic birefringence value and a resin y1 having a negative intrinsic birefringence value; and a layer B formed of a resin composition P2 containing a resin x2 having a positive intrinsic birefringence value and a resin y2 having a negative intrinsic birefringence value. In the optical film, retardations R450, R550, and R650 at an incident angle of 0° satisfy the relationship of R450
Public/Granted literature
- US20110176093A1 OPTICAL FILM AND LIQUID CRYSTAL DISPLAY Public/Granted day:2011-07-21
Information query
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