Title:
POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/008741
Kind Code:
A1
Abstract:
A polarizing plate (3) in which the total thickness of a first protective film (11) and a polarizing film (12) is 50 μm or less. A second protective film (13) contains a cellulose ester and a retardation-lowering agent. The retardation-lowering agent contains a sugar ester obtained by esterifying, with an aliphatic acyl group, all or some of OH groups in a compound (A) having at least one furanose or pyranose structure or in a compound (B) in which two to twelve furanose structures and/or pyranose structures are bonded. The sugar ester is contained at a proportion of at least 70% of the total mass of the retardation-lowering agent. In the second protective film (13), Ro is 0 to 10 nm and Rt is -10 to +10 nm.
Inventors:
TAKAHASHI NAOKI (JP)
Application Number:
PCT/JP2014/068756
Publication Date:
January 22, 2015
Filing Date:
July 15, 2014
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
B32B7/023; G02B5/30; B32B23/20; C08K5/1535; C08K5/1545; C08L1/10; C08L5/00; G02F1/1335; G02F1/13363
Domestic Patent References:
| WO2008015911A1 | 2008-02-07 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
Patent business corporation Sano patent firm (JP)
Patent business corporation Sano patent firm (JP)
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