US4505685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing display structures
Assignee: Alcatel Lucent NV
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Filing: 1982-01-20
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Granted: 1985-03-19
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Expires: 2002-01-20
Abstract
Abstract In the manufacture of display structures--including fluorescent material displays--by means of a print process, a base material (glass or plastic material), prior to the print process, is coated with an electrically conductive layer. During the print process, a strippable coating or pigmented lacquer having the shape of the structure, is deposited onto a first layer. After the print process, the non-printed electrically conductive layer is etched away and in the case of the non-fluorescent display structure, the strippable coating is peeled off the electrically conductive layer. The invention provides an improvement in the manufacture of display structures over the hitherto conventional photographic reproduction of silk-screen printing methods, and provides display structures having sharp edges to a thickness of approximately 10 μm.
Inventors
- 👤 Kurt M. Tischer
- 👤 Klaus-Peter Voigt
- 👤 Rolf Zondler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:01
CPC Classifications
H; H01; H01J; H01J9/00; G; G09; G09F; G09F9/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
186 words
A method for manufacturing a conductive display structure of an electronic display using a printing process comprising the steps of: providing a substrate as a base for a conductive display structure: coating said substrate with an electrically conductive layer on a surface thereof; printing a pattern of etch resistant, strippable material on said electrically conductive layer, said pattern having a shape congruent with said conductive display structure, said printing step including the steps of providing a print carrier in the form of a plate with concave impressions therein corresponding to said shape of said pattern, said pattern including an arrangement of electronic circuitry and applying said strippable material into said concave impressions by means of a tampon-type printing pad prior to the printing of said pattern onto said electrically conductive layer, said print carrier plate with said concave impressions contacting said electrically conductive layer of said substrate: etching away said electrically conductive layer except where said printed pattern has been deposited; and stripping away said etch resistant, strippable material from said substrate thereby leaving said conductive display structure as the unetched residue of said etching step.
Claim 2
Independent Claim
186 words
A method for manufacturing a conductive display structure of an electronic display using a printing process comprising the steps of: providing a substrate as a base for a conductive display structure: coating said substrate with an electrically conductive layer on a surface thereof; printing a pattern of etch resistant, strippable material on said electrically conductive layer, said pattern having a shape congruent with said conductive display structure, said printing step including the steps of providing a print carrier in the form of a plate with concave impressions therein corresponding to said shape of said pattern, said pattern including an arrangement of electronic circuitry and applying said strippable material into said concave impressions by means of a tampon-type printing pad prior to the printing of said pattern onto said electrically conductive layer, said print carrier plate with said concave impressions contacting said electrically conductive layer of said substrate: etching away said electrically conductive layer except where said printed pattern has been deposited; and stripping away said etch resistant, strippable material from said substrate thereby leaving said conductive display structure as the unetched residue of said etching step.
Claim 3
Independent Claim
199 words
A method for manufacturing a conductive display structure of an electronic display using a printing process comprising the steps of: providing a substrate as a base for a conductive display structure; coating said substrate with an electrically conductive layer on a surface thereof; printing a pattern of etch resistant, strippable material on said electrically conductive layer, said pattern having a shape congruent with said conductive display structure, said printing step including the steps of providing a print carrier in the form of a plate with concave impressions therein corresponding to said shape of said pattern, said pattern including an arrangement of electronic circuitry and applying said strippable material into said concave impressions by means of a tampon-type printing pad prior to the printing of said pattern onto said electrically conductive layer, said print carrier plate with said concave impressions contacting said electrically conductive layer of said substrate; etching away said electrically conductive layer except where said printed pattern has been deposited; stripping away said etch resistant, strippable material from said substrate thereby leaving said conductive display structure as the unetched residue of said etching step; and providing a pigmented lacquer containing a fluorescent pigmenting material as said strippable material.
Claim 4
Independent Claim
199 words
A method for manufacturing a conductive display structure of an electronic display using a printing process comprising the steps of: providing a substrate as a base for a conductive display structure; coating said substrate with an electrically conductive layer on a surface thereof; printing a pattern of etch resistant, strippable material on said electrically conductive layer, said pattern having a shape congruent with said conductive display structure, said printing step including the steps of providing a print carrier in the form of a plate with concave impressions therein corresponding to said shape of said pattern, said pattern including an arrangement of electronic circuitry and applying said strippable material into said concave impressions by means of a tampon-type printing pad prior to the printing of said pattern onto said electrically conductive layer, said print carrier plate with said concave impressions contacting said electrically conductive layer of said substrate; etching away said electrically conductive layer except where said printed pattern has been deposited; stripping away said etch resistant, strippable material from said substrate thereby leaving said conductive display structure as the unetched residue of said etching step; and providing a pigmented lacquer containing a fluorescent pigmenting material as said strippable material.
Claim 5
Dependent Claim
23 words
The method according to claim 1 in which said step of providing said substrate comprises the step of providing a glass plate therefor.
Claim 6
Dependent Claim
23 words
The method according to claim 2 in which said step of providing said substrate comprises the step of providing a glass plate therefor.
Claim 7
Dependent Claim
25 words
The method according to claim 1 in which said step of providing said substrate comprises the step of providing a substrate of polymer plastic material.
Claim 8
Dependent Claim
25 words
The method according to claim 2 in which said step of providing said substrate comprises the step of providing a substrate of polymer plastic material.
Claim 9
Dependent Claim
32 words
The method according to claim 1 in which said step of coating said substrate with said electrically conductive layer comprises the step of coating said substrate with a layer of indium-tin oxide.
Claim 10
Dependent Claim
32 words
The method according to claim 2 in which said step of coating said substrate with said electrically conductive layer comprises the step of coating said substrate with a layer of indium-tin oxide.
Claim 11
Independent Claim
220 words
A method for manufacturing a conductive display structure of an electronic display using a printing process comprising the steps of: providing a substrate as a base for a conductive display structure: coating said substrate with an electrically conductive layer on a surface thereof; printing a pattern of etch resistant, strippable material on said electrically conductive layer, said pattern having a shape congruent with said conductive display structure, said printing step including the steps of providing a print carrier in the form of a plate with concave impressions therein corresponding to said shape of said pattern, said pattern including an arrangement of electronic circuitry and applying said strippable material into said concave impressions by means of a tampon-type printing pad prior to the printing of said pattern onto said electrically conductive layer, said print carrier plate with said concave impressions contacting said electrically conductive layer of said substrate; etching away said electrically conductive layer except where said printed pattern has been deposited; stripping away said etch resistant, strippable material from said substrate thereby leaving said conductive display structure as the unetched residue of said etching step; providing a pigmented lacquer containing a fluorescent pigmenting material as said strippable material; and exposing said conductive display structure to an ultraviolet light through said substrate for improving the adhesion of said fluorescent pigmenting material.
Claim 12
Independent Claim
220 words
A method for manufacturing a conductive display structure of an electronic display using a printing process comprising the steps of: providing a substrate as a base for a conductive display structure: coating said substrate with an electrically conductive layer on a surface thereof; printing a pattern of etch resistant, strippable material on said electrically conductive layer, said pattern having a shape congruent with said conductive display structure, said printing step including the steps of providing a print carrier in the form of a plate with concave impressions therein corresponding to said shape of said pattern, said pattern including an arrangement of electronic circuitry and applying said strippable material into said concave impressions by means of a tampon-type printing pad prior to the printing of said pattern onto said electrically conductive layer, said print carrier plate with said concave impressions contacting said electrically conductive layer of said substrate; etching away said electrically conductive layer except where said printed pattern has been deposited; stripping away said etch resistant, strippable material from said substrate thereby leaving said conductive display structure as the unetched residue of said etching step; providing a pigmented lacquer containing a fluorescent pigmenting material as said strippable material; and exposing said conductive display structure to an ultraviolet light through said substrate for improving the adhesion of said fluorescent pigmenting material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |