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US4513023A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of constructing thin electroluminescent lamp assemblies

Assignee: Union Carbide Corp
•
Filing: 1983-02-23
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Granted: 1985-04-23
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Expires: 2003-02-23
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Abstract

Abstract A method of constructing a thin electroluminescent lamp assembly comprising forming a UV curable dielectric matrix by loading nonencapsulated particles of electroluminescent phosphor into a UV curable dielectric composition, depositing a coating of such composition over the surface of a transparent conductor, curing such composition by exposure to ultraviolet light in a substantially inert atmosphere, interposing a coating of a silver conductive material in the form of a band about the periphery of the transparent conductor to form an electrical bus bar with the band having an elongated section of the same composition extending therefrom to form a first electrical lead, curing said band and electrical lead, superimposing a conductive coating over the surface of the UV curable dielectric composition with the conductive coating having an elongated section extending therefrom to form a second electrical lead laterally spaced apart from the first electrical lead, curing the conductive coating and second electrical lead and applying a protective coatings over said conductive coatings.

Inventors

  • 👤 John Wary

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 18:00
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/10

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 236 words
A method of constructing a thin electroluminescent lamp comprising the steps of: (a) screen printing a band of silver conductive material substantially around the edges of a circumscribed area of a transparent conductive substrate with said area conforming to the desired configuration for the lamp and with said band forming an electrical bus bar for the lamp; (b) forming an insulated support area over a section of said transparent conductive substrate extending from said silver conductive bus bar; (c) depositing a finger-like section of silver conductive material over said insulated support area and extending from said bus bar to form a first electrical lead; (d) forming a UV curable dielectric matrix by loading nonencapsulated particles of electroluminescent phosphor into a UV curable dielectric composition; (e) depositing a coating of said UV curable dielectric composition over said circumscribed area of the transparent conductor and over said silver conductive bus bar; (f) curing said coating composition by exposure to a source of ultraviolet light in a substantially inert atmosphere; (g) superimposing a layer of a nontransparent conductive material over the surface of the UV curable dielectric coating with said nontransparent conductive layer having an elongated finger-like section extending over said insulating support area to form a second electrical lead laterally spaced from said first electrical lead; and (h) applying a protective coating over said conductive layer and at least a portion of said first and second electrical leads.
Claim 2
Independent Claim 236 words
A method of constructing a thin electroluminescent lamp comprising the steps of: (a) screen printing a band of silver conductive material substantially around the edges of a circumscribed area of a transparent conductive substrate with said area conforming to the desired configuration for the lamp and with said band forming an electrical bus bar for the lamp; (b) forming an insulated support area over a section of said transparent conductive substrate extending from said silver conductive bus bar; (c) depositing a finger-like section of silver conductive material over said insulated support area and extending from said bus bar to form a first electrical lead; (d) forming a UV curable dielectric matrix by loading nonencapsulated particles of electroluminescent phosphor into a UV curable dielectric composition; (e) depositing a coating of said UV curable dielectric composition over said circumscribed area of the transparent conductor and over said silver conductive bus bar; (f) curing said coating composition by exposure to a source of ultraviolet light in a substantially inert atmosphere; (g) superimposing a layer of a nontransparent conductive material over the surface of the UV curable dielectric coating with said nontransparent conductive layer having an elongated finger-like section extending over said insulating support area to form a second electrical lead laterally spaced from said first electrical lead; and (h) applying a protective coating over said conductive layer and at least a portion of said first and second electrical leads.
Claim 3
Dependent Claim 45 words
A method as defined in claim 1 wherein said transparent conductor is formed by depositing a thin layer of conductive particles selected from the group consisting of gold, indium tin oxide and indium oxide over the surface of a transparent sheet of a resinous material.
Claim 4
Dependent Claim 28 words
A method as defined in claim 2 wherein said phosphor particles in said UV curable dielectric matrix comprises at least about 50% by weight of the total composition.
Claim 5
Dependent Claim 33 words
A method as defined in claim 3 wherein said nontransparent conductive layer is formed by coating the surface of said UV curable dielectric coating with a conductive composition and curing said conductive composition.
Claim 6
Dependent Claim 28 words
A method as defined in claim 3 wherein said nontransparent conductive layer is formed by bonding a layer of conductive sheet material to said UV curable dielectric coating.
Claim 7
Independent Claim 226 words
A method of constructing a thin electroluminescent lamp comprising the steps of: (a) depositing a layer of a transparent conductive material, upon an insulating substrate to form a predetermined shape substantially conforming to the desired configuration for the lamp, with the transparent conductor having an elongated finger-like section forming a first electrical lead for the lamp; (b) screen printing a band of silver conductive material substantially around the edges of the predetermined shape formed by said transparent conductor for forming an electrical bus bar for the lamp; (c) forming a UV curable dielectric matrix by loading nonencapsulated particles of electroluminescent phosphor into a UV curable dielectric composition; (d) depositing a coating of said UV curable dielectric composition over the transparent conductor and over said silver conductive bus bar with said first electrical lead exposed; (e) curing said coating composition by exposure to a source of ultraviolet light in a substantially inert atmosphere; (f) superimposing a layer of a nontransparent conductive material over the surface of the UV curable dielectric coating with said nontransparent conductive layer having an elongated finger-like section extending over said insulating substrate in registry with and laterally spaced from said first electrical lead to form a second electrical lead; (g) applying a protective coating over said nontransparent conductive layer and extending over at least a portion of said first and second electrical leads.
Claim 8
Independent Claim 226 words
A method of constructing a thin electroluminescent lamp comprising the steps of: (a) depositing a layer of a transparent conductive material, upon an insulating substrate to form a predetermined shape substantially conforming to the desired configuration for the lamp, with the transparent conductor having an elongated finger-like section forming a first electrical lead for the lamp; (b) screen printing a band of silver conductive material substantially around the edges of the predetermined shape formed by said transparent conductor for forming an electrical bus bar for the lamp; (c) forming a UV curable dielectric matrix by loading nonencapsulated particles of electroluminescent phosphor into a UV curable dielectric composition; (d) depositing a coating of said UV curable dielectric composition over the transparent conductor and over said silver conductive bus bar with said first electrical lead exposed; (e) curing said coating composition by exposure to a source of ultraviolet light in a substantially inert atmosphere; (f) superimposing a layer of a nontransparent conductive material over the surface of the UV curable dielectric coating with said nontransparent conductive layer having an elongated finger-like section extending over said insulating substrate in registry with and laterally spaced from said first electrical lead to form a second electrical lead; (g) applying a protective coating over said nontransparent conductive layer and extending over at least a portion of said first and second electrical leads.
Claim 9
Dependent Claim 45 words
A method as defined in claim 6 wherein said transparent conductor is formed by depositing a thin layer of conductive particles selected from the group consisting of gold, indium tin oxide and indium oxide over the surface of a transparent sheet of a resinous material.
Claim 10
Dependent Claim 28 words
A method as defined in claim 7 wherein said phosphor particles in said UV curable dielectric matrix comprises at least about 50% by weight of the total composition.
Claim 11
Dependent Claim 33 words
A method as defined in claim 8 wherein said nontransparent conductive layer is formed by coating the surface of said UV curable dielectric coating with a conductive composition and curing said conductive composition.
Claim 12
Dependent Claim 28 words
A method as defined in claim 9 wherein said nontransparent conductive layer is formed by bonding a layer of conductive sheet material to said UV curable dielectric coating.
Claim 13
Independent Claim 224 words
A method of constructing a thin electroluminescent lamp comprising the steps of: (a) forming a UV curable dielectric matrix by loading nonencapsulated particles of electroluminescent phosphor into a UV curable dielectric composition; (b) depositing a coating of such composition upon a predetermined surface area of a nontransparent conductor, said area conforming to the desired configuration for the lamp and with said nontransparent conductor having a predetermined finger-like section forming a first electrical lead for the lamp; (c) curing said coating composition by exposure to a source of ultraviolet light in a substantially inert atmosphere; (d) forming an insulated support area over a section of said nontransparent conductor adjacent to said predetermined surface area and said first electrical lead; (e) screen printing a band of silver conductive material substantially around the periphery of said coating of dielectric matrix composition for forming a bus bar for the lamp; (f) screen printing a finger-like extension of said silver conductive material from said bus bar over said insulated support area to form a second electrical lead adjacent to said first electrical lead; (g) superimposing a coating of a transparent conductive material over said coating of dielectric matrix material and over said bus bar; and (h) applying a protective coating over said transparent conductive coating and extending over at least a portion of said first and second electrical leads.
Claim 14
Independent Claim 224 words
A method of constructing a thin electroluminescent lamp comprising the steps of: (a) forming a UV curable dielectric matrix by loading nonencapsulated particles of electroluminescent phosphor into a UV curable dielectric composition; (b) depositing a coating of such composition upon a predetermined surface area of a nontransparent conductor, said area conforming to the desired configuration for the lamp and with said nontransparent conductor having a predetermined finger-like section forming a first electrical lead for the lamp; (c) curing said coating composition by exposure to a source of ultraviolet light in a substantially inert atmosphere; (d) forming an insulated support area over a section of said nontransparent conductor adjacent to said predetermined surface area and said first electrical lead; (e) screen printing a band of silver conductive material substantially around the periphery of said coating of dielectric matrix composition for forming a bus bar for the lamp; (f) screen printing a finger-like extension of said silver conductive material from said bus bar over said insulated support area to form a second electrical lead adjacent to said first electrical lead; (g) superimposing a coating of a transparent conductive material over said coating of dielectric matrix material and over said bus bar; and (h) applying a protective coating over said transparent conductive coating and extending over at least a portion of said first and second electrical leads.
Claim 15
Dependent Claim 45 words
A method as defined in claim 11 wherein said transparent conductor is formed by depositing a thin layer of conductive particles selected from the group consisting of gold, indium tin oxide and indium oxide over the surface of a transparent sheet of a resinous material.
Claim 16
Dependent Claim 28 words
A method as defined in claim 12 wherein said phosphor particles in said UV curable dielectric matrix comprises at least about 50% by weight of the total composition.
Claim 17
Dependent Claim 33 words
A method as defined in claim 13 wherein said nontransparent conductive layer is formed by coating the surface of said UV curable dielectric coating with a conductive composition and curing said conductive composition.
Claim 18
Dependent Claim 28 words
A method as defined in claim 14 wherein said nontransparent conductive layer is formed by bonding a layer of conductive sheet material to said UV curable dielectric coating.
Claim 19
Independent Claim 214 words
A method of constructing a thin electroluminescent lamp comprising the steps of: (a) depositing a layer of nontransparent conductive material, having a predetermined shape substantially conforming to the desired configuration for the lamp, upon an insulating substrate, with the nontransparent conductor having an elongated finger-like section for forming a first electrical lead for the lamp; (b) forming a UV curable dielectric matrix by loading nonencapsulated particles of electroluminescent phosphor into a UV curable dielectric composition; (c) depositing a coating of such matrix material composition over said layer of nontransparent conductive material with said first electrical lead exposed; (d) curing said coating by exposure to ultraviolet light in a substantially inert atmosphere; (e) screen printing a band of silver conductive material substantially around the periphery of said dielectric matrix coating for forming a bus bar for the lamp; (f) screen printing a finger-like extension of said silver conductive material from said bus bar over said insulating substrate to form a second electrical lead adjacent to said first electrical lead; (g) superimposing a coating of a transparent conductive material over said coating of dielectric matrix material and over said bus bar; and (h) applying a protective coating over said transparent conductive coating and extending over at least a portion of said first and second electrical leads.
Claim 20
Independent Claim 214 words
A method of constructing a thin electroluminescent lamp comprising the steps of: (a) depositing a layer of nontransparent conductive material, having a predetermined shape substantially conforming to the desired configuration for the lamp, upon an insulating substrate, with the nontransparent conductor having an elongated finger-like section for forming a first electrical lead for the lamp; (b) forming a UV curable dielectric matrix by loading nonencapsulated particles of electroluminescent phosphor into a UV curable dielectric composition; (c) depositing a coating of such matrix material composition over said layer of nontransparent conductive material with said first electrical lead exposed; (d) curing said coating by exposure to ultraviolet light in a substantially inert atmosphere; (e) screen printing a band of silver conductive material substantially around the periphery of said dielectric matrix coating for forming a bus bar for the lamp; (f) screen printing a finger-like extension of said silver conductive material from said bus bar over said insulating substrate to form a second electrical lead adjacent to said first electrical lead; (g) superimposing a coating of a transparent conductive material over said coating of dielectric matrix material and over said bus bar; and (h) applying a protective coating over said transparent conductive coating and extending over at least a portion of said first and second electrical leads.
Claim 21
Dependent Claim 28 words
A method as defined in claim 5 wherein said phosphor particles in said UV curable dielectric matrix comprises at least about 50% by weight of the total composition.
Claim 22
Dependent Claim 25 words
A method as defined in claim 17 wherein said nontransparent conductive layer is formed by coating with a conductive composition and curing said conductive composition.
Claim 23
Dependent Claim 28 words
A method as defined in claim 19 wherein said nontransparent conductive layer is formed by bonding a layer of conductive sheet material to said UV curable dielectric coating.

References Cited (Backward Citations)

US2791723A Cited
US3238407A Cited
US3043979A Cited
US3153167A Cited
US3197664A Cited
US3247414A 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) 1988-04-22 1988-10-22 1989-04-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-04-22 1992-10-22 1993-04-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-04-22 1996-10-22 1997-04-23 $7700.00 Window Closed / Lapsed

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