US4873175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming functional coating film between fine electric conductive circuits
Assignee: Shinto Paint Co Ltd
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Filing: 1986-12-29
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Granted: 1989-10-10
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Expires: 2006-12-29
Abstract
Abstract The present invention is for a method of forming a coating film used for filling the space between the color stripes for a color filter which is used for colorization of a liquid crystal display. In particular, the light-shielding electrodeposition coating is first formed in a transparent electric conductive circuit pattern so as to suppress the reaction of a photo-setting material against light which is to be applied to the electrodeposition coating.
Inventors
- 👤 Tameyuki Suzuki
- 👤 Takuro Kamakura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:42
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/0005; G03F7/0007; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133512; H; H05; H05K; H05K3/00; H05K3/0073; H05K3/0082; H05K3/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
147 words
(Four Times Amended) A method of forming a functional coating film on spaces of a fine electric conductive circuit pattern of a transparent base board comprising the steps of: (i) forming a light-shielding precoat film on said electric conductive circuit pattern by electrode position of a coating agent having a light-shielding property and reagent solubility; (ii) forming a photo-setting coating film by applying a functional material having photo-curability to an entire part of said transparent base board including said precoat film; (iii) exposing a back surface of said transparent base board to light for curing portions of said photo-setting coating film which are not shielded by said light-shielding precoat film; and (iv) removing the uncured portions of said photo-setting coating film, which has been un-exposed in the step (iii), and said light-shielding precoat film, formed in the step (i), with the same reagent in a single process.
Claim 2
Dependent Claim
147 words
(Four Times Amended) A method of forming a functional coating film on spaces of a fine electric conductive circuit pattern of a transparent base board comprising the steps of: (i) forming a light-shielding precoat film on said electric conductive circuit pattern by electrode position of a coating agent having a light-shielding property and reagent solubility; (ii) forming a photo-setting coating film by applying a functional material having photo-curability to an entire part of said transparent base board including said precoat film; (iii) exposing a back surface of said transparent base board to light for curing portions of said photo-setting coating film which are not shielded by said light-shielding precoat film; and (iv) removing the uncured portions of said photo-setting coating film, which has been un-exposed in the step (iii), and said light-shielding precoat film, formed in the step (i), with the same reagent in a single process.
Claim 3
Dependent Claim
18 words
A method according to claim 1, wherein said electric conductive circuit pattern is formed of a transparent electrode.
Claim 4
Dependent Claim
26 words
A method according to claim 1, wherein said photo-setting coating film, formed on said transparent base board is a functional coating film having a light-screening property.
References Cited (Backward Citations)
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US4369247A
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US4617094A
Cited
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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) | 1992-10-09 | 1993-04-10 | 1993-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-09 | 1997-04-10 | 1997-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-09 | 2001-04-10 | 2001-10-10 | $7700.00 | Window Closed / Lapsed |