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Title:
OPTICAL MULTILAYER BODY, POLARIZING PLATE AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/071410
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: an optical multilayer body which has an optically anisotropic layer that has reverse wavelength dispersion properties and exhibits excellent wet heat durability, and which has excellent adhesion between a first optically anisotropic layer and a second optically anisotropic layer; a polarizing plate which uses this optical multilayer body; and an image display device. An optical multilayer body according to the present invention is obtained by directly stacking a first optically anisotropic layer and a second optically anisotropic layer upon each other; both the first optically anisotropic layer and the second optically anisotropic layer are formed of liquid crystal layers; at least one of the first optically anisotropic layer and the second optically anisotropic layer has reverse wavelength dispersion properties; a photo-alignable polymer that has a photo-alignment group and a fluorine atom or a silicon atom is present in a surface of the second optically anisotropic layer, said surface being in contact with the first optically anisotropic layer; and the element ratio of fluorine or silicon in the surface of the second optically anisotropic layer, said surface being in contact with the first optically anisotropic layer, is from 0.05% by atom to 15.00% by atom.

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Inventors:
NAKAGAWA KAZUSHIGE (JP)
ASAHI MIHO (JP)
WAKIZAKA DAIKI (JP)
Application Number:
PCT/JP2021/035906
Publication Date:
April 07, 2022
Filing Date:
September 29, 2021
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; G02F1/1335; G02F1/13363; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
WO2020145297A12020-07-16
WO2019159707A12019-08-22
WO2016114254A12016-07-21
Foreign References:
JP2019522245A2019-08-08
JP2017097331A2017-06-01
JP2016053709A2016-04-14
JP2020013133A2020-01-23
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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