Title:
LAYERED BODY AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/255132
Kind Code:
A1
Abstract:
(Problem) To provide a layered body capable of preventing formation of air bubbles in an adhesive agent layer or escape of an adhesive agent therefrom even when being repeatedly bent so as to have the back surface layer side thereof located on the inner side, under a high-temperature condition. (Solution) This layered body has: a front surface layer; a first adhesive agent layer; a polarizing plate including at least a linear polarization layer; a second adhesive agent layer; and a back surface layer in the stated order. When D1 represents tanδ of the first adhesive agent layer at a temperature of 60°C, and D2 represents tanδ of the second adhesive agent layer at a temperature of 60°C, the relations in formula (1) and formula (2) are satisfied. (1): D1
Inventors:
LEE SEUNGWOO (JP)
SASE MITSUTAKA (JP)
NISHIKAMI YUKI (JP)
SAKAGUCHI TETSUO (JP)
SASE MITSUTAKA (JP)
NISHIKAMI YUKI (JP)
SAKAGUCHI TETSUO (JP)
Application Number:
PCT/JP2022/020998
Publication Date:
December 08, 2022
Filing Date:
May 20, 2022
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; B32B7/023; C09J7/38; C09J133/04; C09J201/00; G09F9/00; G09F9/30
Domestic Patent References:
WO2021100381A1 | 2021-05-27 | |||
WO2020175088A1 | 2020-09-03 | |||
WO2020080055A1 | 2020-04-23 |
Foreign References:
JP2021061139A | 2021-04-15 | |||
JP2021195552A | 2021-12-27 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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