Title:
光学積層体、偏光板および画像表示装置
Document Type and Number:
Japanese Patent JP7385729
Kind Code:
B2
Abstract:
An object of the present invention is to provide an optical laminate in which an optically anisotropic layer provided as an upper layer has good liquid crystal alignment properties, and a polarizing plate and an image display device using the optical laminate. An optical laminate of the present invention is an optical laminate including: a first optically anisotropic layer; and a second optically anisotropic layer, in which the first and second optically anisotropic layers are directly laminated, each of the first and second optically anisotropic layers consists of a liquid crystal layer, and a photo-alignment polymer having a photo-alignment group and at least one type of polar group selected from the group consisting of a hydroxyl group and a ketone group is present in a surface of the second optically anisotropic layer on a side in contact with the first optically anisotropic layer.
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Inventors:
Masahiro Atsumi
Kazushige Nakagawa
Hiroshi Nozoe
Takashi Iizumi
Soichiro Watanabe
Kazushige Nakagawa
Hiroshi Nozoe
Takashi Iizumi
Soichiro Watanabe
Application Number:
JP2022501750A
Publication Date:
November 22, 2023
Filing Date:
February 01, 2021
Export Citation:
Assignee:
Fujifilm Corporation
International Classes:
G02B5/30; B32B7/023; B32B27/36; C08K5/34; C08L33/06; C08L65/00; G02F1/1335; G02F1/13363
Domestic Patent References:
| JP2004046196A | ||||
| JP2020013164A |
Foreign References:
| WO2018216812A1 | ||||
| WO2019117082A1 | ||||
| WO2015122334A1 | ||||
| WO2018181350A1 | ||||
| WO2018173727A1 | ||||
| WO2018025498A1 | ||||
| WO2016039327A1 |
Attorney, Agent or Firm:
Hideaki Ito
Fumio Mihashi
Fumio Mihashi
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