Title:
POLARIZING PLATE AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/102363
Kind Code:
A1
Abstract:
The present invention provides a polarizing plate in which a decrease in transmittance in high-temperature environments is suppressed. This polarizing plate includes: a polarizing element that is obtained by having a dichroic pigment adsorbed and aligned on a polyvinyl alcohol resin layer; a first transparent protective film that is laminated on one surface of the polarizing element; and a second transparent protective film that is laminated on the other surface of the polarizing element. The polarizing element and the first transparent protective film are joined to one other by a first adhesive layer, which is formed from a first adhesive containing a first compound. The polarizing element and the second transparent protective film are joined to one other by a second adhesive layer, which is formed from a second adhesive containing a second compound. The first compound is at least one selected from the group consisting of urea, urea derivatives, thiourea, and thiourea derivatives. The second compound includes a nitroxy radical or a nitroxide group.
Inventors:
FUKUDA KENICHI (JP)
SATO SHOTA (JP)
SATO SHOTA (JP)
Application Number:
PCT/JP2021/038727
Publication Date:
May 19, 2022
Filing Date:
October 20, 2021
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; C09J11/06; C09J129/04; G02F1/1335; G09F9/00; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2020100869A1 | 2020-05-22 | |||
| WO2020100845A1 | 2020-05-22 | |||
| WO2019177134A1 | 2019-09-19 | |||
| WO2020230717A1 | 2020-11-19 | |||
| WO2021095541A1 | 2021-05-20 |
Foreign References:
| JP2014186312A | 2014-10-02 | |||
| JP2003315537A | 2003-11-06 | |||
| JPH0364703A | 1991-03-20 | |||
| JP2010276815A | 2010-12-09 | |||
| JP2015180911A | 2015-10-15 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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