Title:
POLARIZING PLATE, COVER GLASS-EQUIPPED POLARIZING PLATE, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/065224
Kind Code:
A1
Abstract:
Provided is a polarizing plate in which displacement in a through-hole portion is small even in a high-temperature environment, and air bubbles in the through-hole portion can be notably suppressed when a through-hole is filled with an adhesive for laminating a cover glass in an image display device. This polarizing plate comprises a polarizer, a protective layer disposed on at least one side of the polarizer, and an adhesive layer, and a through-hole is formed therein. The thickness of the polarizer is 15 μm or less, and |b1-b2| is 45 mm or less. Here b1 is the distance from the center of the through-hole to one end of the polarizing plate in the absorption axis direction of the polarizer, and b2 is the distance from the center of the through-hole to the other end of the polarizing plate in the absorption axis of the polarizer.
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Inventors:
KIMURA TOMOYUKI (JP)
FUJITA MASATO (JP)
MORIMOTO TSUYOSHI (JP)
FUJITA MASATO (JP)
MORIMOTO TSUYOSHI (JP)
Application Number:
PCT/JP2021/034279
Publication Date:
March 31, 2022
Filing Date:
September 17, 2021
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; G02F1/1335; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2020188872A1 | 2020-09-24 |
Foreign References:
| JP2018025630A | 2018-02-15 | |||
| US20200225394A1 | 2020-07-16 | |||
| CN111510520A | 2020-08-07 | |||
| JP2017182017A | 2017-10-05 | |||
| JP2020504873A | 2020-02-13 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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