Invention Grant
- Patent Title: Polarizing plate protective film, polarizing plate, and liquid crystal display
- Patent Title (中): 偏光板保护膜，偏光板和液晶显示屏
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Application No.: US12296297Application Date: 2007-04-02
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Publication No.: US07973883B2Publication Date: 2011-07-05
- Inventor: Shigeki Oka , Kunio Shimizu
- Applicant: Shigeki Oka , Kunio Shimizu
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JP2006-109477 20060412
- International Application: PCT/JP2007/057386 WO 20070402
- International Announcement: WO2007/119646 WO 20071025
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; C09K19/00
Abstract:
Disclosed is a polarizing plate protective film having high dimensional stability against moisture. Also disclosed are a polarizing plate using such a polarizing plate protective film, and a liquid crystal display. Specifically disclosed is a polarizing plate protective film which is characterized by containing a cellulose ester and a polymer X which is obtained by copolymerizing at least a styrene derivative monomer Xa having no hydroxyl group and an ethylenically unsaturated monomer Xb having a hydroxyl group or a carboxyl group, and has a weight average molecular weight of 500-100,000.
Public/Granted literature
- US20100157206A1 POLARIZING PLATE PROTECTIVE FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY Public/Granted day:2010-06-24
Information query
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