Title:
POLARIZING PLATE, LIQUID CRYSTAL DISPLAY DEVICE, AND ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/082375
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a thin-walled polarizing plate of exceptional strength, in which no light leakage occurs even under exposure to high-temperature and high-humidity conditions, and in which there are few instances of diminished outward appearance due, inter alia, to cracks forming in the polarizer in environments where repetitive cycling between high and low temperatures occurs. A polarizing plate having a polarizer, a protection film, and an adhesive layer, wherein the absolute value of the difference between the dimensional variation of the protection film (85˚C) and the dimensional variation of the protection film (30˚C) is 0.02‒0.50, where the dimensional variation of the protection film (85˚C) is the dimensional variation of the protection film in the direction parallel to the direction of the light transmission axis of the polarizer after 1 hr has elapsed at 85˚C and a relative humidity of 5%, and the dimensional variation of the protection film (30˚C) is the dimensional variation of the protection film in the direction parallel to the direction of the light transmission axis of the polarizer after 0.5 hr has elapsed at 30˚C and a relative humidity of 95%.
Inventors:
SHIRAISHI TAKAYUKI (JP)
LU IHUA (JP)
LU IHUA (JP)
Application Number:
PCT/JP2016/083459
Publication Date:
May 18, 2017
Filing Date:
November 11, 2016
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; B32B7/02; G02F1/1335; G09F9/30; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2015064433A1 | 2015-05-07 |
Foreign References:
| JP2015072385A | 2015-04-16 | |||
| JP2006308936A | 2006-11-09 | |||
| JP4774415B2 | 2011-09-14 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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