Title:
RETARDATION LAYER–EQUIPPED POLARIZING PLATE AND IMAGE DISPLAY DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/063129
Kind Code:
A1
Abstract:
The present invention provides a thin retardation layer–equipped polarizing plate in which decolorization of the plate when used in an image display device is suppressed. A retardation layer–equipped polarizing plate according to an embodiment of the present invention comprises: a polarizing film that contains iodine and has a first main surface and a second main surface on opposite sides from one another; a protective layer that is disposed on the first main surface side of the polarizing film and has a moisture permeability at 40°C and 92% RH of no more than 150 g/m2·24h; an adhesive layer that is disposed on the second main surface side of the polarizing film; a retardation layer that is disposed between the polarizing film and the adhesive layer; and an inorganic film that contains silicon and is disposed between the polarizing film and the adhesive layer, wherein the thickness of the section of layers from the protective layer to the layer adjacent to the adhesive layer is no larger than 50 μm.
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Inventors:
KOJIMA TADASHI (JP)
NAKAJIMA KAZUHIRO (JP)
ITO HONAMI (JP)
NAKAJIMA KAZUHIRO (JP)
ITO HONAMI (JP)
Application Number:
PCT/JP2022/036884
Publication Date:
April 20, 2023
Filing Date:
October 03, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; G02F1/1335; G02F1/13363; G02F1/1337; G09F9/30
Domestic Patent References:
| WO2018190180A1 | 2018-10-18 | |||
| WO2016043240A1 | 2016-03-24 |
Foreign References:
| JP2016105166A | 2016-06-09 | |||
| JPH0259336A | 1990-02-28 | |||
| CN210626704U | 2020-05-26 | |||
| JP2017049536A | 2017-03-09 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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