Patent ID: 6309782
Filing Date: 2001-10-30
Classification: G02B

Abstract:
The method for manufacturing a color filter, comprising the steps of:a preparing a substrate produced by forming an organic semiconductor film or an inorganic semiconductor film on a transparent electroconductive film formed on a transparent substrate;b) preparing a water-based liquid in a vessel that can hold a liquid, the water based liquid containing a coloring material and an electrodeposition material that is chemically dissolved or precipitated/sedimented based on changes in the pH;c) disposing, in said vessel, an apparatus including a counter electrode which is the other of a pair of electrodes and securing said substrate, in which means for providing a current or an electric field is connected to said transparent electroconductive film, such that a semiconductor thin film is dipped in said water-based liquid; andd) applying light on the transparent substrate of said substrate to selectively precipitate an electrodeposition film which contains the electrodeposition material on a point at which electromotive force was generated with light irradiation, thereby forming a monochromatic color filter.