US5593757A
Expired / Lapsed
US
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Production process of color filter and color filter produced thereby
Assignee: Canon Inc
•
Filing: 1995-06-13
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Granted: 1997-01-14
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Expires: 2015-06-13
Abstract
Abstract Disclosed herein is a process for producing a color filter, comprising the steps of: providing a plurality of color inks having different color properties from each other and a black ink; and ejecting the inks directly on a base or on a composition provided on the base using an ink-jet system to form a colored pattern, wherein a black matrix is formed with a black ink having a polarity opposite to that of the color inks.
Inventors
- 👤 Akio Kashiwazaki
- 👤 Hiroshi Sato
- 👤 Katsuhiro Shirota
- 👤 Hideto Yokoi
- 👤 Shoji Shiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:07
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/201; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133512; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876; Y10T428/24893; Y10T428/24901; Y10T428/24942; Y10T428/31504; Y10T428/31551; Y10T428/31786; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T428/31935; Y10T428/31971
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
83 words
A process for producing a color filter, comprising the steps of: providing color inks of red, green and blue and a black ink having a polarity opposite to that of the color inks; and applying the color inks and the black ink directly on a base or on a heat-resistant resin layer provided on the base using an ink-jet system to form colored and black patterns wherein the black pattern is formed with a black ink so as to adjoin the colored pattern.
Claim 2
Dependent Claim
83 words
A process for producing a color filter, comprising the steps of: providing color inks of red, green and blue and a black ink having a polarity opposite to that of the color inks; and applying the color inks and the black ink directly on a base or on a heat-resistant resin layer provided on the base using an ink-jet system to form colored and black patterns wherein the black pattern is formed with a black ink so as to adjoin the colored pattern.
Claim 3
Dependent Claim
24 words
The process according to claim 1, wherein the black ink comprises a cationic compound and each of the color inks comprises an anionic compound.
Claim 4
Dependent Claim
17 words
The process according to claim 2, wherein said anionic compound includes anionic surfactant, anionic polymer or oligomer.
Claim 5
Dependent Claim
25 words
The process according to claim 3, wherein said anionic surfactant includes alkylbenzenesulfonate, salt of alkylsulfuric ester, alkylnaphthalenesulfonate, alkylphosphate, alkylsulfosuccinate, naphthalenesulfonic acid-formalin condensate or polyoxyethylene alkylphosphate.
Claim 6
Dependent Claim
73 words
The process according to claim 3, wherein said anionic polymer or oligomer includes carboxyl group-terminated polyester obtained by reacting a polycarboxylic acid with a polyhydric alcohol, acid cellulose derivative obtained by modification with polycarboxylic acid, homopolymer of vinyl ether polycarboxylate monomer, homopolymer of (meth)acrylic acid, homopolymer of α, β unsaturated vinyl monomer, sulfuric acid-modified polymer obtained by treating polyvinyl alcohol or vinyl alcohol copolymer with a sulfonic compound, ethylcellulose, benzylcellulose, hydroxyethylcellulose or hydroxypropylcellulose.
Claim 7
Dependent Claim
17 words
The process according to claim 2, wherein said cationic compound includes cationic surfactant, cationic polymer or oligomer.
Claim 8
Dependent Claim
24 words
The process according to claim 6, wherein said cationic surfactant includes monoalkylammonium chloride, dialkylammonium chloride, tetramethylammonium chloride, trimethylphenylammonium chloride, or ethylene oxide-added ammonium chloride.
Claim 9
Dependent Claim
34 words
The process according to claim 6, wherein said cationic polymer or oligomer includes cation-modified product of polyacrylamide, copolymer of acrylamide and a cationic monomer, polyallylamine, polyamine sulfone, polyvinylamine, polyethyleneimine, polyamide-epichlorohydrin resin, or polyvinylpyridinium halide.
Claim 10
Dependent Claim
24 words
The process according to claim 1, wherein the black ink comprises an anionic compound and each of the color inks comprises a cationic compound.
Claim 11
Dependent Claim
17 words
The process according to claim 9 wherein said anionic compound includes anionic surfactant, anionic polymer or oligomer.
Claim 12
Dependent Claim
25 words
The process according to claim 10, wherein said anionic surfactant includes alkylbenzenesulfonate, salt of alkylsulfuric ester, alkylnaphthalenesulfonate, alkylphosphate, alkylsulfosuccinate, naphthalenesulfonic acid-formalin condensate or polyoxyethylene alkylphosphate.
Claim 13
Dependent Claim
72 words
The process according to claim 10, wherein said anionic polymer or oligomer includes carboxyl group-terminated polyester obtained by reacting a polycarboxylic acid with a polyhydric alcohol, acid cellulose derivative obtained by modification with polycarboxylic acid, homopolymer of vinyl ether polycarboxylate monomer, homopolymer of (meth)acrylic acid homopolymer of α, β-unsaturated vinyl monomer, sulfuric acid-modified polymer obtained by treating polyvinyl alcohol or vinyl alcohol copolymer with a sulfonic compound, ethylcellulose, benzylcellulose, hydroxyethylcellulose or hydroxypropylcellulose.
Claim 14
Dependent Claim
17 words
The process according to claim 9, wherein said cationic compound includes cationic surfactant, cationic polymer or oligomer.
Claim 15
Dependent Claim
24 words
The process according to claim 13, wherein said cationic surfactant includes monoalkylammonium chloride, dialkylammonium chloride, tetramethylammonium chloride, trimethylphenylammonium chloride, or ethylene oxide-added ammonium chloride.
Claim 16
Dependent Claim
34 words
The process according to claim 13, wherein said cationic polymer or oligomer includes cation-modified product of polyacrylamide, copolymer of acrylamide and a cationic monomer, polyallylamine, polyamine sulfone, polyvinylamine, polyethyleneimine, polyamide-epichlorohydrin resin, or polyvinylpyridinium halide.
Claim 17
Dependent Claim
25 words
The process according to claim 1, further comprising forming a transparent protective layer composed of a curable resin composition on the colored and black patterns.
Claim 18
Dependent Claim
22 words
The process according to claim 16, wherein the curable resin composition is a resin composition capable of curing by exposure to light.
Claim 19
Dependent Claim
22 words
The process according to claim 16, wherein the curable resin composition is a resin composition capable of curing by a heat treatment.
Claim 20
Dependent Claim
19 words
The process according to claim 1, wherein said resin layer has a thickness of from 0.1 to 20 μm.
Claim 21
Dependent Claim
16 words
The process according to claim 1, wherein a resin in said resin layer has heat resistance.
Claim 22
Dependent Claim
46 words
The process according to claim 9, wherein said resin is a material selected from the group consisting of polyvinyl pyrrolidone, polyvinyl alcohol, polyvinyl acetal polyurethane, carboxymethylcellulose, polyester, polyacrylic acid and esters thereof, hydroxyethylcellulose, melamine resin, albumin, gelatin, casein, starch, cationic starch, gum arabic, and sodium alginate.
Claim 23
Dependent Claim
16 words
The process according to claim 1, wherein said each of color inks contains dye or pigment.
Claim 24
Dependent Claim
14 words
The process according to claim 1, wherein said black ink contains dye or pigment.
Claim 25
Dependent Claim
16 words
The process according to claim 1, wherein said each of color inks contains an aqueous medium.
Claim 26
Dependent Claim
23 words
The process according to claim 24, wherein said aqueous medium contains a mixed solvent of water and at least one water-soluble organic solvent.
Claim 27
Dependent Claim
14 words
The process according to claim 1, wherein said black ink contains an aqueous medium.
Claim 28
Dependent Claim
23 words
The process according to claim 26, wherein said aqueous medium contains a mixed solvent of water and at least one water-soluble organic solvent.
Claim 29
Dependent Claim
16 words
A color filter produced by the process according to any one of claims 1 to 28.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-01-14 | 2000-07-15 | 2001-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-01-14 | 2004-07-15 | 2005-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-01-14 | 2008-07-15 | 2009-01-14 | $7700.00 | Window Closed / Lapsed |