Invention Grant
- Patent Title: Optical compensation plate, polarizing plate using the same and image display apparatus using the same
- Patent Title (中): 光学补偿板,使用其的偏振片和使用其的图像显示装置
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Application No.: US10542272Application Date: 2004-08-05
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Publication No.: US07288297B2Publication Date: 2007-10-30
- Inventor: Masayuki Kawai , Junichi Adachi , Shuuji Yano , Takashi Yamaoka , Kanako Wasai
- Applicant: Masayuki Kawai , Junichi Adachi , Shuuji Yano , Takashi Yamaoka , Kanako Wasai
- Applicant Address: JP Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP.
- Priority: JP2003-289077 20030807
- International Application: PCT/JP2004/011264 WO 20040805
- International Announcement: WO2005/015274 WO 20050217
- Main IPC: G02B5/30
- IPC: G02B5/30 ; G02F1/13363

Abstract:
The present invention provides an optical compensation plate having an optical compensation layer in which occurrence of cracks due to an applied pressure and deformation caused by heat or the like are suppressed. By applying an adhesive that contains a moisture-curing isocyanate compound and has a glass transition temperature of 100° C. or less onto at least one surface of the optical compensation layer and curing the adhesive, an anti-cracking layer is formed directly on the surface of the optical compensation layer. The occurrence of cracks and the deformation in the optical compensation layer can be prevented by this anti-cracking layer. The optical compensation layer preferably is a layer having a cholesteric structure, and a constituent material thereof preferably is a non-liquid crystal polymer formed by polymerizing aligned liquid crystal monomers or an aligned liquid crystal polymer.
Public/Granted literature
- US20060061697A1 Optical compensation plate, polarizing plate using the same and image display apparatus using the same Public/Granted day:2006-03-23
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