Invention Grant
US08361264B2 Process for producing polarizing plate, polarizing plate produced by the process, and liquid crystal display device using the polarizing plate
有权
用于制造偏光板的方法，通过该方法制造的偏振片和使用偏振片的液晶显示装置
- Patent Title: Process for producing polarizing plate, polarizing plate produced by the process, and liquid crystal display device using the polarizing plate
- Patent Title (中): 用于制造偏光板的方法，通过该方法制造的偏振片和使用偏振片的液晶显示装置
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Application No.: US13203669Application Date: 2010-02-01
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Publication No.: US08361264B2Publication Date: 2013-01-29
- Inventor: Takashi Takebe , Masataka Takimoto , Nobuo Kubo
- Applicant: Takashi Takebe , Masataka Takimoto , Nobuo Kubo
- 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: JP2009-053255 20090306
- International Application: PCT/JP2010/051337 WO 20100201
- International Announcement: WO2010/100986 WO 20100910
- Main IPC: B32B38/18
- IPC: B32B38/18 ; B32B37/00 ; B29C65/00
Abstract:
Disclosed is a process for producing a polarizing plate which is transparent, has resistance against high temperatures and high humidity, and is significantly improved in brittleness. Specifically disclosed is a process for producing a polarizing plate comprising two polarizing plate protective films and a polarizer intercalated between the polarizing plate protective films, which is characterized in that at least one of the two polarizing plate protective films is an acrylic film comprising an acrylic resin (A) and a cellulose ester resin (B) at a ratio of 85:15 to 55:45 by mass, and the acrylic film is drawn in at least one direction at a draw ratio of 10 to 150% inclusive and is subsequently bonded to the polarizer with an aqueous adhesive agent.
Public/Granted literature
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