Color filter, color filter-equipped display device and method for manufacturing same
AssigneeFutaba Denshi Kogyo K.K.
InventorsYuji Nomura, Satoshi Tanaka, Yasuyuki Naito
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Abstract
A thin-film filter which is uniform in thickness and has a smooth surface is provided. A filter forming liquid containing a ultrafine pigment, a photosensitive organic Si compound and a high-boiling polar solvent is coated on a glass substrate to form a filter film, which is subject to light exposure through a mask and then development, to thereby carry out patterning, followed by calcination of the glass substrate, leading to manufacturing of a color filter.
Claims12
A color filter comprising:
- SiO.sub.2 prepared by calcination of an organic Si compound and arranged on a glass substrate;
- and
- a fine-particle pigment dispersed in said SiO.sub.2 and fixed therein wherein said organic Si compound is a polymer prepared by subjecting four-functionality alkoxysilane and an alkyl group-containing alkoxysilane or a photosensitive group-containing alkoxysilane to copolymerization.
A color filter comprising:
- a glass substrate;
- and
- a SiO.sub.2 film directly deposited on a surface of said glass substrate, said SiO.sub.2 film being prepared by applying a film-forming liquid containing a photosensitive organic Si compound and a fine-particle pigment on the surface of said glass substrate to form a filter film, subjecting said filter film to patterning, and calcining said filter film.
A method for manufacturing a color filter comprising:
- preparing a filter forming liquid containing a fine-particle pigment, a photosensitive organic Si compound and a high-boiling polar solvent;
- applying said filter-forming liquid directly on a glass substrate to form a filter film;
- subjecting said filter film to patterning;
- and
- calcining said filter film-applied glass substrate.
A display device having a color filter comprising:
- a glass substrate;
- a SiO.sub.2 film directly deposited on a surface of said glass substrate, said SiO.sub.2 film being prepared by applying a film forming liquid containing a photosensitive organic Si compound and a fine particle pigment on the surface of said glass substrate to form a filter film, subjecting said filter film to patterning, and calcining said filter film-deposited glass substrate;
- a light-permeable anode conductor formed on said SiO.sub.2 film;
- and
- a phosphor layer formed on said anode conductor.
A method for manufacturing a display device having a color filter comprising:
- forming a black matrix on a glass substrate;
- forming a color filter on said glass substrate by preparing a filter-forming liquid containing a fine particle pigment, a photosensitive organic Si compound and a high-boiling polar solvent, then applying said filter forming liquid directly on the glass substrate to form a filter film;
- subjecting said filter film to patterning, and calcining said filter film-applied glass substrate;
- forming a light-permeable anode conductor on said color filter;
- and
- forming a phosphor layer on said anode conductor.
Dependencies are inferred from the claim text.