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Title:
SET OF POLARIZING PLATES, AND IMAGE DISPLAY DEVICE INCLUDING SAID SET
Document Type and Number:
WIPO Patent Application WO/2021/065075
Kind Code:
A1
Abstract:
Provided is a set of polarizing plates in which the deviation of the through-hole portion in each polarizing plate is low, and the difference between the deviation amount of a viewing-side polarizing plate and the deviation amount of a rear surface-side polarizing plate is extremely small. This set of polarizing plates comprises a rectangular first polarizing plate disposed on the viewing side of an image display cell, and a rectangular second polarizing plate disposed on the rear surface side. The first polarizing plate has a first polarizer, a protective layer disposed on at least one side thereof, and a first adhesive layer disposed on the image display cell side. The second polarizing plate has a second polarizer, a protective layer disposed on at least one side thereof, a reflective polarizer disposed on the side of the second polarizer opposite to the image display cell, and a second adhesive layer disposed on the image display cell side. The thicknesses of the first polarizer and the second polarizer are each 20 μm or less. The absorption axis of the first polarizer is in the short-side direction, and the absorption axis of the second polarizer is in the long-side direction. The first polarizing plate and the second polarizing plate each have a through-hole in the end thereof or in the vicinity of the end, in positions corresponding to each other.

Inventors:
MORIMOTO TSUYOSHI (JP)
SHINAGAWA REIKO (JP)
KIMURA TOMOYUKI (JP)
Application Number:
PCT/JP2020/020664
Publication Date:
April 08, 2021
Filing Date:
May 26, 2020
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; G02F1/1335
Domestic Patent References:
WO2019131220A12019-07-04
WO2017204161A12017-11-30
Foreign References:
JP2012036286A2012-02-23
JP2018022140A2018-02-08
JP2019107764A2019-07-04
JP2019086788A2019-06-06
JP2011028251A2011-02-10
JP2007101678A2007-04-19
JP2001350019A2001-12-21
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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