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US 2006/0213077 A1Published application
Manufacturing method of optical film, and optical film
AssigneeKonica Minolta Opto, Inc.
InventorsTakeshi Tanaka, Takashi Murakami
Life of this patent
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Abstract
A washing process to sufficiently remove contaminants attached on the surface of an optical film is proposed. Specifically, disclosed is a method of manufacturing an optical film, wherein the method possesses the steps of spraying onto at least one surface of a transparent film a solidified blast material via cooling that is a gas or a liquid at normal temperature and pressure, washing the at least one surface of the transparent film, and coating at least one optically functional layer on the washed surface of the transparent film.
Claims18
A method of manufacturing an optical film,
- wherein the method comprises the steps of:
- (a) spraying onto at least one surface of a transparent film a solidified blast material via cooling that is a gas or a liquid at normal temperature and pressure;
- (b) washing the at least one surface of the transparent film;
- and;
- (c) coating at least one optically functional layer on the surface of the transparent film that has been washed via step (b).
2 more elements
An optical film,
- wherein a solidified blast material via cooling that is a gas or a liquid at normal temperature and pressure is sprayed onto at least one surface of a transparent film, and the at least one surface of the transparent film is washed.
Dependencies are inferred from the claim text.