Title:
POLARIZING PLATE WITH RETARDATION LAYER
Document Type and Number:
WIPO Patent Application WO/2023/074037
Kind Code:
A1
Abstract:
Provided is a polarizing plate which has a retardation layer and in which glue overflow, glue shortage, glue displacement, and process contamination are inhibited, and cracks are prevented from occurring in a low-temperature environment. The polarizing plate with a retardation layer according to the present invention comprises a protective layer, a polarizer, a retardation layer, and an adhesive layer in the stated order. The total thickness from the protective layer to the retardation layer is 20-60 µm. The glass transition temperature of the adhesive layer is -60 to -40°C. The creep value of the adhesive layer is 10-150% at 25°C.
Inventors:
YONEZAWA KAZUAKI (JP)
NAGATA TAKUYA (JP)
TOMOHISA HIROSHI (JP)
NAGATA TAKUYA (JP)
TOMOHISA HIROSHI (JP)
Application Number:
PCT/JP2022/023834
Publication Date:
May 04, 2023
Filing Date:
June 14, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; B32B7/023; B32B27/00; C09J7/38; C09J133/04; G02F1/1335
Foreign References:
| JP2020138377A | 2020-09-03 | |||
| JP2017002139A | 2017-01-05 | |||
| JP2020060708A | 2020-04-16 | |||
| JP2008096734A | 2008-04-24 | |||
| US20130170035A1 | 2013-07-04 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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