Method for producing color filter using photocatalysis, apparatus for producing color filter

摘要

The present invention provides a film-making method, wherein a film-making substrate having a light-transmittable substrate which supports a light-transmittable conductive thin film and a photocatalytic thin film is immersed in an electrolytic solution and irradiated with ultraviolet light directed onto the photocatalytic thin film to form a film thereon, the conductive film and photocatalytic film being arranged on the film-making substrate in such a way that they are in contact with each other, that the conductive film is allowed to conduct to the electrolytic solution and that the photocatalytic film comes into contact with the electrolytic solution, and the electrolytic solution containing a substance which decreases in solubility or dispersibility in an aqueous liquid when its pH is changed.