Title:
METHOD FOR PRODUCING CHOLESTERIC LIQUID CRYSTAL LAYER, CHOLESTERIC LIQUID CRYSTAL LAYER, OPTICALLY ANISOTROPIC BODY, AND REFLECTIVE FILM
Document Type and Number:
WIPO Patent Application WO/2021/054174
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a method for producing a cholesteric liquid crystal layer, a cholesteric liquid crystal layer, an optically anisotropic body, and a reflective film with which it is possible to freely control an angle of inclination of an array direction of light portions and dark portions derived from a cholesteric liquid crystal phase with respect to a normal line to a main surface of a cholesteric liquid crystal layer. This method for producing a cholesteric liquid crystal layer has: a step X for forming a cholesteric liquid crystal layer A that satisfies any of conditions 1 to 3 and is such that a liquid crystal compound is oriented to achieve a state of a cholesteric liquid crystal phase; and a step Y for implementing a process to increase or decrease the helix pitch of the cholesteric liquid crystal phase in the cholesteric liquid crystal layer A obtained in step X, and increasing or decreasing the angle of inclination of an array direction of light portions and dark portions derived from the cholesteric liquid crystal phase, as observed in a cross-section perpendicular to a main surface of the cholesteric liquid crystal layer A, with respect to a direction normal to the main surface of the cholesteric liquid crystal layer A.
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Inventors:
KODAMA KEISUKE (JP)
SUZUKI YUKO (JP)
KATOH SHUNYA (JP)
SUZUKI YUKO (JP)
KATOH SHUNYA (JP)
Application Number:
PCT/JP2020/033780
Publication Date:
March 25, 2021
Filing Date:
September 07, 2020
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30
Domestic Patent References:
WO2019035449A1 | 2019-02-21 | |||
WO2019013292A1 | 2019-01-17 | |||
WO2019013284A1 | 2019-01-17 | |||
WO2017030176A1 | 2017-02-23 | |||
WO2016194961A1 | 2016-12-08 | |||
WO2019181247A1 | 2019-09-26 | |||
WO2019182052A1 | 2019-09-26 |
Foreign References:
JPS6435478A | 1989-02-06 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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