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Patent Searching and Data


Title:
POLARIZING PLATE, POLARIZING PLATE WITH RETARDATION LAYER, AND IMAGE DISPLAY DEVICE USING SAID PLATES
Document Type and Number:
WIPO Patent Application WO/2021/149314
Kind Code:
A1
Abstract:
Provided are a thin polarizing plate and a polarizing plate with a retardation layer, the polarizing plates being capable of suppressing changes in resistance values of electrodes when used in an image display device in a high temperature and high humidity environment. The polarizing plates of the present invention each have a polarizer, an iodine-permeation suppressing layer, and an adhesive layer, in this order. The polarizing plate with a retardation layer of the present invention comprises this type of polarizing plate, and a retardation layer arranged between the polarizer and the adhesive layer. The retardation layer has a circular polarization function or an elliptical polarization function, and the orientation of a liquid crystal compound is fixed therein. The polarizing plate and the polarizing plate with a retardation layer of the present invention have an ITO resistance value increase rate of 100% or less.

Inventors:
MITA SATOSHI (JP)
MURAKAMI NATSUKI (JP)
Application Number:
PCT/JP2020/039434
Publication Date:
July 29, 2021
Filing Date:
October 20, 2020
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; G09F9/30; H01L27/32; H01L51/50; H05B33/02; H05B33/14
Domestic Patent References:
WO2020111232A12020-06-04
WO2019003860A12019-01-03
Foreign References:
JP2018141962A2018-09-13
JP2016122054A2016-07-07
JP2015227947A2015-12-17
JP2017075986A2017-04-20
JP2017068235A2017-04-06
JP2020126226A2020-08-20
JP2017191203A2017-10-19
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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