PRODUCTION OF COLOR FILTER

• Main Authors: OTSUKI YUTAKA, YODA EIJI, YUASA HITOSHI, NAKAMURA TORU
• Format: Patent
• Language: English
• Published: 29.03.1994
• Edition: 5
• Subjects: ADHESIVES; APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; CINEMATOGRAPHY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; 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; DYES; ELECTROGRAPHY; FILLING PASTES; FREQUENCY-CHANGING; HOLOGRAPHY; INKS; MATERIALS THEREFOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; ORIGINALS THEREFOR; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; USE OF MATERIALS THEREFOR; WOODSTAINS

PURPOSE:To provide a color filter which is industrially useful and can be easily massproduced. CONSTITUTION:The production method of the color filter includes the following process. A negative or positive photosensitive coating film is formed (2) on an electrical conductive layer of a substrate (1) which has the transparent electrical conductive layer and light-intercepting layer on the outermost surface, and the photosensitive coating film is exposed through a mask having specified pattern (3), and then the mask is at least once moved to expose the film with different light quantity (4). Then the photosensitive coating film is developed and removed (6), and a coloring coating material is applied by electrodepositionon the exposed conductive layer to form a colored layer (7). This procedure is repeated for each pattern. Thereby, by this method, the freedom degree of pattern forming of the colored layer is increased without requiring a high-level fine working technique, and a light-intercepting layer can be accurately formed. Further, this method can deal with enlargement of the size of a filter.