Invention Grant
- Patent Title: Protective film for polarizing plate, polarizing plate, and liquid crystal display device
- Patent Title (中): 偏光片保护膜，偏光板及液晶显示装置
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Application No.: US12058005Application Date: 2008-03-28
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Publication No.: US07847887B2Publication Date: 2010-12-07
- Inventor: Masaaki Suzuki , Tokuju Oikawa , Katsumi Inoue , Shuntarou Ibuki
- Applicant: Masaaki Suzuki , Tokuju Oikawa , Katsumi Inoue , Shuntarou Ibuki
- Applicant Address: JP Minato-Ku, Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Minato-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2007-089697 20070329
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02B5/30
Abstract:
To provide a protective film for a polarizing plate that shows a water vapor transmission rate (WVTR40) of 30 g/m2·day or less at 60° C. and a relative humidity of 40%, a water vapor transmission rate (WVTR95) 80 g/m2·day or more and 300 g/m2·day or less at 60° C. and a relative humidity of 95% and a value obtained by dividing the difference between WVTR95 and WVTR40 by the water vapor transmission rate (WVTR60) at 60° C. and a relative humidity of 60%, or (WVTR95-WVTR40) /WVTR60, 2.0 or more.
Public/Granted literature
- US20080239211A1 PROTECTIVE FILM FOR POLARIZING PLATE, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2008-10-02
Information query
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