Title:
POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2015/001980
Kind Code:
A1
Abstract:
[Problem] To provide a means for improving reworkability of a polarizing plate wherein a thin cellulose ester film is used as one of protective films.
[Solution] A polarizing plate which comprises a protective film (A), a polarizer and a protective film (B) in this order. The protective film (A) is a polyester film that is formed from a polyester, and this polyester film has an elastic modulus of 5.0-8.0 GPa in the MD direction and/or in the TD direction. The protective film (B) is a cellulose ester film that is formed from a cellulose ester, and this cellulose ester film is characterized in that (1) the film thickness thereof is within the range of 15-60 μm, and (2) the toughness both in the MD direction and in the TD direction is 10-20.
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Inventors:
SUZUKI SHINICHIRO (JP)
Application Number:
PCT/JP2014/066330
Publication Date:
January 08, 2015
Filing Date:
June 19, 2014
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G02B5/30; B32B23/20; B32B27/36; G02F1/1335; G02F1/13363
Foreign References:
| JP2004205572A | 2004-07-22 | |||
| JP2004219620A | 2004-08-05 | |||
| JP2012185519A | 2012-09-27 | |||
| JP2012137723A | 2012-07-19 | |||
| JP2008102475A | 2008-05-01 | |||
| JP2008203400A | 2008-09-04 | |||
| JP2012048181A | 2012-03-08 | |||
| JP2012088479A | 2012-05-10 |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
Hatta international patent business corporation (JP)
Hatta international patent business corporation (JP)
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