Method for producing color filter

• Main Authors: NAKAMURA; TORU, OTSUKI; YUTAKA, YUASA; HITOSHI, YODA; EIJI
• Format: Patent
• Language: English
• Published: 06.06.1995
• Edition: 6
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; CINEMATOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTROGRAPHY; FREQUENCY-CHANGING; HOLOGRAPHY; MATERIALS THEREFOR; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; ORIGINALS THEREFOR; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A method for producing a color filter involves (A) forming a photosensitive coating film on at least a transparent electrically conductive layer of a first substrate having both the transparent electrically conductive layer and a light-intercepting layer on its surface or a second substrate having the transparent electrically conductive layer on its outermost surface and a light-intercepting layer between the second substrate and the transparent electrically conductive layer and exposing the photosensitive coating film through a mask having patterns of at least three different degrees of light transmittances, and (B) developing and removing a photosensitive coating film region corresponding to a pattern having smallest degree of light transmittance or a pattern having largest degree of light transmittance for exposing the transparent electrically conductive layer and electrodepositing a colored coating on the exposed transparent electrically conductive layer for forming a colored layer thereon, operation of developing and removing the photosensitive coating film and electrodepositing the colored coating being sequentially repeated for the respective patterns having different degrees of light transmittances where the sequence of repetition is of increasing light transmittance or decreasing light transmittance.