Title:
POLARIZING PLATE HAVING RETARDATION LAYER AND IMAGE DISPLAY DEVICE INCLUDING SAID POLARIZING PLATE HAVING RETARDATION LAYER
Document Type and Number:
WIPO Patent Application WO/2023/084838
Kind Code:
A1
Abstract:
Provided is a polarizing plate having a retardation layer, wherein in-plane unevenness of the reflection hue of the plate has been suppressed. The polarizing plate having a retardation layer according to an embodiment of the present invention comprises a first retardation layer and a polarizing plate that contains a polarizer. The retardation change value RS of the polarizing plate having a retardation layer is 2.0 or less, the retardation change value RS being the slope of a fitted straight line of the value of in-plane retardation Re(550) of the polarizing plate having a retardation layer as measured under a tension of 0 kg, 0.5 kg, 1 kg, 1.5 kg, and 2 kg.
Inventors:
HAYASHI DAISUKE (JP)
SENDA HIROKI (JP)
TSUKAMOTO KATSUKI (JP)
FUJIMOTO NAOKI (JP)
SENDA HIROKI (JP)
TSUKAMOTO KATSUKI (JP)
FUJIMOTO NAOKI (JP)
Application Number:
PCT/JP2022/025917
Publication Date:
May 19, 2023
Filing Date:
June 29, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02F1/1335; G02B5/30; G09F9/00; G09F9/30; H05B33/02; H05B33/14
Domestic Patent References:
| WO2013191152A1 | 2013-12-27 | |||
| WO2017094624A1 | 2017-06-08 |
Foreign References:
| JPH1068816A | 1998-03-10 | |||
| KR20170068861A | 2017-06-20 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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