Method of producing color filters

Details Method of producing color filters Method of producing color filters

G - Physics

03

C

96/266

G03C 5/00 (2006.01) G03F 7/00 (2006.01) H01L 31/0216 (2006.01)

Patent

CA 1139150

METHOD OF PRODUCING COLOR FILTERS Abstract of the Disclosure The invention relates to a method of producing color filters comprising a step of forming a photosensitive film by coating, on a rugged (i.e. uneven or stepped) substrate, a mixture of a light-absorbing material which can be removed with a solvent and a photosensitive material; a step of irradiating light onto the photo- sensitive film through a predetermined pattern; a step of removing dissolvable portions of the photosensitive film and the light absorbing material from the photosensitive film which remains on the substrate; and a step of dyeing the photosensitive film into any desired color. The sensitizer conventionally employed in such coatings is replaced by a light-absorbing material. This permits the formation of fine patterns on a substrate having rugged surfaces.

346071

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