Title:
LIGHT ABSORPTION ANISOTROPIC FILM, OPTICAL FILM AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/138465
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a light absorption anisotropic film which has few defects even in cases where the concentration of a dichroic substance is high, while having a high degree of orientation; an optical film; and a liquid crystal display device. A light absorption anisotropic film according to the present invention is formed from a liquid crystal composition that contains a liquid crystalline compound and a dichroic substance; the total amount of a dichroic substance represented by formula (C-1) and a dichroic substance represented by formula (C-2) is 4.5% by mass or more relative to the total mass of the solid content of the liquid crystal composition; and the liquid crystalline compound is vertically aligned. In cases where Ra1 and Ra2 represent the same group, -N(Rb11)(Rb12) and -N(Rb21)(Rb22) represent different groups. In cases where Ra1 and Ra2 represent different groups, -N(Rb11)(Rb12) and -N(Rb21)(Rb22) may represent the same group or different groups.
Inventors:
HOSHINO WATARU (JP)
NISHIMURA NAOYA (JP)
WATANABE SHINYA (JP)
NISHIMURA NAOYA (JP)
WATANABE SHINYA (JP)
Application Number:
PCT/JP2021/046623
Publication Date:
June 30, 2022
Filing Date:
December 16, 2021
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; G02F1/1335; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2017154695A1 | 2017-09-14 | |||
| WO2019235355A1 | 2019-12-12 | |||
| WO2019132020A1 | 2019-07-04 | |||
| WO2017154907A1 | 2017-09-14 | |||
| WO2016060174A1 | 2016-04-21 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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