Title:
POLARIZING FILM AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/276936
Kind Code:
A1
Abstract:
Provided is a polarizing film in which a transparent protective film is stacked on at least one surface of a polarizer with an adhesive layer therebetween, the polarizing film being characterized in that in at least part of the polarizer, a non-polarizing portion is formed, and a dimensional shrinkage rate X1 of the polarizing film including the non-polarizing portion after the polarizing film is left for 72 hours at 85°C in a humidity environment of 85% is 1.0% or less. H1×d1 ≥ 0.8 is preferable where H1 (GPa) is the hardness of the non-polarizing portion, and d1 is the thickness of the non-polarizing portion. H3×T3 < 50 is preferable where H3 (GPa) is the hardness of the transparent protective film, and T3 (g/m2) is the moisture permeability of the transparent protective film. H2×d2 ≥ 0.20 is preferable where H2 (GPa) is the hardness of a portion abutting on the non-polarizing portion of the adhesive layer, and d2 (μm) is the thickness thereof.
Inventors:
ZAMA YUTO (JP)
YAMASAKI TATSUYA (JP)
HARUTA HIROMOTO (JP)
YAMASAKI TATSUYA (JP)
HARUTA HIROMOTO (JP)
Application Number:
PCT/JP2022/025540
Publication Date:
January 05, 2023
Filing Date:
June 27, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; C09J201/00; G02F1/1335; G09F9/00
Foreign References:
| JP2018072545A | 2018-05-10 | |||
| JP2018028563A | 2018-02-22 | |||
| JP2018031954A | 2018-03-01 | |||
| JP2017194568A | 2017-10-26 | |||
| JP2018156010A | 2018-10-04 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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