Title:
OPTICAL ANISOTROPIC LAYER PRODUCTION METHOD, LAMINATE PRODUCTION METHOD, POLARIZER-EQUIPPED OPTICAL ANISOTROPIC LAYER PRODUCTION METHOD, POLARIZER-EQUIPPED LAMINATE PRODUCTION METHOD, COMPOSITION, AND OPTICAL ANISOTROPIC LAYER
Document Type and Number:
WIPO Patent Application WO/2021/033631
Kind Code:
A1
Abstract:
The present invention provides: a simple production method for an optical anisotropic layer which has, in the thickness direction, a plurality of regions in which the alignment states of a liquid crystal compound are fixed and the alignment states of the liquid crystal compound are different from one another; a laminate production method; a polarizer-equipped optical anisotropic layer production method; a polarizer-equipped laminate production method; a composition; and an optical anisotropic layer. This optical anisotropic layer production method comprises: a step 1 in which a composition layer that includes a polymerizable liquid crystalline compound and a chiral agent comprising at least a photosensitive chiral agent is formed on a substrate; a step 2 in which the composition layer undergoes heat treatment so as to align the liquid crystalline compound in the composition layer; a step 3 in which, after step 2, the composition layer undergoes irradiation with light under a condition in which the oxygen concentration is 1 vol% or more; and a step 4 in which the composition layer undergoes curing treatment to form an optical anisotropic layer, the production method further comprising a step 5 for performing step 3 under a heated condition or for applying heat on the composition layer in between step 3 and step 4. The total contained amount of the chiral agent is set to a predetermined amount.
Inventors:
TAKAHASHI YUTA (JP)
YOSHIDA SHINPEI (JP)
YANOKUCHI SATOSHI (JP)
MARUYAMA AKIRA (JP)
KODAMA KEISUKE (JP)
FUKUSHIMA YUTA (JP)
KATOH SHUNYA (JP)
FUKUSHIMA YUKI (JP)
HAGIO HIROYUKI (JP)
YOSHIDA SHINPEI (JP)
YANOKUCHI SATOSHI (JP)
MARUYAMA AKIRA (JP)
KODAMA KEISUKE (JP)
FUKUSHIMA YUTA (JP)
KATOH SHUNYA (JP)
FUKUSHIMA YUKI (JP)
HAGIO HIROYUKI (JP)
Application Number:
PCT/JP2020/030838
Publication Date:
February 25, 2021
Filing Date:
August 14, 2020
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; B32B7/023; G09F9/30; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2019142707A1 | 2019-07-25 | |||
| WO2019013284A1 | 2019-01-17 |
Foreign References:
| JP2014209219A | 2014-11-06 | |||
| JP2006072273A | 2006-03-16 | |||
| JP2017102259A | 2017-06-08 | |||
| JP2002328229A | 2002-11-15 | |||
| US20180239177A1 | 2018-08-23 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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