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Patent Searching and Data


Title:
OPTICAL LAMINATE
Document Type and Number:
WIPO Patent Application WO/2021/182056
Kind Code:
A1
Abstract:
The present invention provides an optical laminate that is not susceptible to cracking even when bent. The optical laminate 100 comprises, in this order, a front plate 10, a first bonding layer 20, a circularly polarizing plate 60, a second bonding layer 70, and a back plate 80. The circularly polarizing plate 60 has a retardation plate containing a cured product layer of a polymerizable liquid crystal compound, and at least one among the first bonding layer 20 and the second bonding layer 70 is an adhesive layer. The optical laminate 100 further comprises an adhesive part 90 which covers one or both end surfaces E of the retardation plate 50 in a cross section along the laminating direction of the optical laminate.

Inventors:
KIM DONGHWI (KR)
LIM JONG KWAN (KR)
Application Number:
PCT/JP2021/006064
Publication Date:
September 16, 2021
Filing Date:
February 18, 2021
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; B32B7/023; B32B27/00; G09F9/00
Foreign References:
JP2019199081A2019-11-21
JP2019125423A2019-07-25
EP3264147A12018-01-03
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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