Method for manufacturing an electroluminescent lamp
First Claim
1. A method for manufacturing an electroluminescent lamp, said method comprising the following steps of:
- forming a capacitive electrode from a metal foil by embossing said metal foil onto an insulating flexible plastic film;
forming electrical distribution pathways connected to said capacitive electrode from a metal foil by embossing said metal foil onto an insulating flexible plastic film;
forming electrical terminations that connect to said electrical distribution pathways from a metal foil by embossing said metal foil onto an insulating flexible plastic film;
forming a positioning optical registration indicia from a metal foil by embossing said metal foil onto an insulating flexible plastic film;
applying said insulating flexible plastic film to an optically registered indexing system, said optically registered indexing system to use said optical registration indicia to precisely position said insulating flexible plastic film for further electroluminescent lamp construction processing;
applying a layer of capacitive dielectric to said metal foil capacitive electrode, said capacitive dielectric for electrically isolating said capacitive electrode;
applying a layer of electroluminescent phosphor to said capacitive dielectric layer, said electroluminescent phosphor layer precisely defines an area of illumination;
applying a light transmissive electrically conductive layer to said layer of electroluminescent phosphor, said light transmissive electrically conductive layer having a surface; and
applying a light transmissive insulating coating to the surface of said light transmissive electrically conductive layer.
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Accused Products
Abstract
A method for manufacturing low cost electroluminescent (EL) lamps is disclosed. The method of the present invention includes the first step of die cutting, embossing or chemically etching the metal foil surface of a metal foil bonded flexible electrical insulation to simultaneously form one or more rear capacitive electrodes, electrical terminations, optical registration fiducial indicia, and a continuous carrier means that is then coupled to a precisely positioned indexing system. Next, the rear metal foil capacitive electrodes are coated with a capacitive dielectric layer precisely isolating the rear electrode form. In the third step, a layer of electroluminescent phosphor ink is applied to the rear capacitive electrodes to precisely form areas of illumination. In step four, a layer of light transmissive and electrically conductive ink is applied to cover the EL phosphor layer. Next, in step five a transparent polyester film or ultraviolet activated dielectric coating is applied to the entire surface of the lamp.
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Citations
65 Claims
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1. A method for manufacturing an electroluminescent lamp, said method comprising the following steps of:
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forming a capacitive electrode from a metal foil by embossing said metal foil onto an insulating flexible plastic film;
forming electrical distribution pathways connected to said capacitive electrode from a metal foil by embossing said metal foil onto an insulating flexible plastic film;
forming electrical terminations that connect to said electrical distribution pathways from a metal foil by embossing said metal foil onto an insulating flexible plastic film;
forming a positioning optical registration indicia from a metal foil by embossing said metal foil onto an insulating flexible plastic film;
applying said insulating flexible plastic film to an optically registered indexing system, said optically registered indexing system to use said optical registration indicia to precisely position said insulating flexible plastic film for further electroluminescent lamp construction processing;
applying a layer of capacitive dielectric to said metal foil capacitive electrode, said capacitive dielectric for electrically isolating said capacitive electrode;
applying a layer of electroluminescent phosphor to said capacitive dielectric layer, said electroluminescent phosphor layer precisely defines an area of illumination;
applying a light transmissive electrically conductive layer to said layer of electroluminescent phosphor, said light transmissive electrically conductive layer having a surface; and
applying a light transmissive insulating coating to the surface of said light transmissive electrically conductive layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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34. A method for manufacturing an electroluminescent lamp, said method comprising the following steps of:
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forming a capacitive electrode from a metal foil by embossing said metal foil onto an insulating paper core stock;
forming electrical distribution pathways connected to said capacitive electrode from a metal foil by embossing said metal foil onto an insulating paper core stock;
forming electrical terminations that connect to said electrical distribution pathways from a metal foil by embossing said metal foil onto an insulating paper core stock;
forming a positioning optical registration indicia from a metal foil by embossing said metal foil onto an insulating paper core stock;
applying said insulating flexible plastic film to an optically registered indexing system, said optically registered indexing system to use said optical registration indicia to precisely position said insulating paper core stock for further electroluminescent lamp construction processing;
applying a layer of capacitive dielectric to said metal foil capacitive electrode, said capacitive dielectric for electrically isolating said capacitive electrode;
applying a layer of electroluminescent phosphor to said capacitive dielectric layer, said electroluminescent phosphor layer for precisely defining an area of illumination;
applying a light transmissive electrically conductive layer to said layer of electroluminescent phosphor; and
applying a light transmissive insulating coating to a surface of said light transmissive electrically conductive layer.
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Specification