Title:
光学フィルム、偏光板、画像表示装置
Document Type and Number:
Japanese Patent JP6916949
Kind Code:
B2
Abstract:
The present invention addresses the problem of providing an optical film that includes an optically anisotropic film that has excellent reverse wavelength dispersion, excellent wet-heat resistance, and reduced alignment defects. The present invention also addresses the problem of providing: a polarizing plate that uses the optical film; and an image display device that uses the optical film or the polarizing plate. This optical film includes, in order: an optically anisotropic film that is formed from a polymerizable liquid crystal composition; a photoalignment film; and a polymer support body. The polymerizable liquid crystal composition includes polymerizable liquid crystal compounds that have a prescribed structure. The weight average of the CLogP values of the liquid crystal compounds included in the polymerizable liquid crystal composition is 10.0–20.0. The photoalignment film is formed from a thermally crosslinkable photoalignment film formation composition. The photoalignment film formation composition includes a photoalignable copolymer that includes a photoalignable repeating monomer that has a prescribed structure and a thermally crosslinkable repeating monomer that has a prescribed structure. The thermally crosslinkable group equivalent of the photoalignable copolymer is 340–500.
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Inventors:
Shinichi Yoshinari
Mayumi Nojiri
Hiroshi Nozoe
Takashi Iizumi
Kato
Mayumi Nojiri
Hiroshi Nozoe
Takashi Iizumi
Kato
Application Number:
JP2020500516A
Publication Date:
August 11, 2021
Filing Date:
February 13, 2019
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G02B5/30; C08F20/10; G02F1/13; G02F1/1335; G02F1/13363; G09F9/30; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| JP2015227947A |
Attorney, Agent or Firm:
Hideaki Ito
Fumio Mitsuhashi
Fumio Mitsuhashi