Title:
CIRCULAR POLARIZING PLATE AND IMAGE DISPLAY DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/185802
Kind Code:
A1
Abstract:
Provided is a thin circular polarizing plate in which phase difference changes in high temperature environments are suppressed, and the phenomenon whereby the reflection hue appears red is suppressed. This circular polarizing plate comprises a polarizing plate, a first liquid crystal orientation fixed layer, a second liquid crystal orientation fixed layer, and a protection layer, in that order from the viewing side, wherein the moisture permeability of the protection layer is 920 (g/m2・ 24 h) or less.
Inventors:
FUJINO RYOTA (JP)
TOMOHISA HIROSHI (JP)
YAMAOKA YOHEI (JP)
MITA SATOSHI (JP)
TOMOHISA HIROSHI (JP)
YAMAOKA YOHEI (JP)
MITA SATOSHI (JP)
Application Number:
PCT/JP2022/003086
Publication Date:
September 09, 2022
Filing Date:
January 27, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; G09F9/00; H01L27/32; H01L51/50; H05B33/02; H05B33/14
Domestic Patent References:
| WO2020174787A1 | 2020-09-03 |
Foreign References:
| JP2019120951A | 2019-07-22 | |||
| JP2008163107A | 2008-07-17 | |||
| JP2020201507A | 2020-12-17 | |||
| JP2017102443A | 2017-06-08 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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