Title:
METHOD FOR MANUFACTURING OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2018/230553
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing an optical film which, even after being bent, has no tone difference between when visually recognized from a front direction and when visually recognized from an oblique direction, with which layer separation does not occur, and which has low haze. This method for manufacturing an optical film comprises: a step for forming a foundation layer on a substrate using a foundation layer formation composition containing a monofunctional monomer; a step for forming two or more types of dots obtained by immobilizing a cholesteric liquid crystal layer on the foundation layer using a composition containing a liquid crystal compound without performing rubbing treatment on the foundation layer, the dots reflecting light in visible light regions different from each other; a step for forming a first overcoat layer using a composition containing a first multifunctional monomer, the first overcoat layer being disposed so as to cover the dots and having a refractive index difference of 0.10 or less from the dots; and a step for forming a second overcoat layer on the first overcoat layer using a composition containing a second multifunctional monomer.
Inventors:
ARITA SHUSUKE (JP)
YANAI YUJIRO (JP)
YANAI YUJIRO (JP)
Application Number:
PCT/JP2018/022382
Publication Date:
December 20, 2018
Filing Date:
June 12, 2018
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; G02B5/26; G03B21/60; G03B21/62
Domestic Patent References:
| WO2016204067A1 | 2016-12-22 |
Foreign References:
| JPH04359201A | 1992-12-11 | |||
| JP2008242759A | 2008-10-09 |
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
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