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Title:
POLARIZER PROTECTIVE FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2008299096
Kind Code:
A
Abstract:

To provide a polarizer protective film containing an acrylic polymer having transparency, heat resistance and high retardation performance as a principal component, to provide a polarizing plate using such the polarizer protective film having high retardation performance, and to provide a high-definition image display device using such the polarizing plate.

The polarizer protective film contains the acrylic polymer as a principal component and has an in-plane retardation value at 589 nm wavelength per 100 m thickness of 130-500 nm and total light transmittance of 85%. The polarizer protective film preferably has a glass transition temperature of 110-200C. The acrylic polymer as the principal component preferably has a lactone ring structure.


Inventors:
ASANO HIDEO
NAKA AKIO
NIWA HIROKAZU
Application Number:
JP2007145211A
Publication Date:
December 11, 2008
Filing Date:
May 31, 2007
Export Citation:
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Assignee:
NIPPON CATALYTIC CHEM IND
International Classes:
G02B5/30; C08J5/18; C08L33/00; G02F1/1335; G02F1/13363
Domestic Patent References:
JP2006096960A2006-04-13
JP2007050612A2007-03-01
JP2007063541A2007-03-15
JP2006328334A2006-12-07
JP6112207A
JP7032304A