Optical film, polarizing plate, image display device and method for manufacturing optical film
OwnerHiroyuki Minami-Ashigara-shi, Kenichi Fukudainventors
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Abstract
An optical film is provided, the optical film including: a transparent support; and at least one low refractive index layer on or above the transparent support, the low refractive index layer being obtained by hardening a composition containing: (A) a fluorine atom-free polymerizable compound having two or more ethylenically unsaturated groups in one molecule thereof; (B) low refractive index inorganic fine particles; and (C) a polyrotaxane compound.
Claims16
An optical film, comprising:
- a transparent support;
- and
- at least one low refractive index layer on or above the transparent support, the low refractive index layer being obtained by hardening a composition containing:
- (A) a fluorine atom-free polymerizable compound having two or more ethylenically unsaturated groups in one molecule thereof;
- (B) low refractive index inorganic fine particles;
- and
- (C) a polyrotaxane compound.
A method for manufacturing an optical film including a transparent support and at least one low refractive index layer on or above the transparent support, the method comprising:
- applying a composition containing:
- (A) a fluorine atom-free polymerizable compound having two or more ethylenically unsaturated groups in one molecule thereof;
- (B) low refractive index inorganic fine particles;
- (C) a polyrotaxane compound;
- and
- (E) at least two kinds of volatile solvents, on a transparent support, so as to form an applied composition;
- and
- hardening the applied composition to form the low refractive index layer.
Dependencies are inferred from the claim text.