Electroluminescent sign
First Claim
Patent Images
1. A method for forming an illuminated design on a substrate, said method comprising the steps of:
- forming an ultraviolet coating on the substrate;
screen printing a rear electrode over the ultraviolet coating;
forming at least one dielectric layer over the rear electrode;
forming a phosphor layer over the dielectric layer;
forming an indium tin oxide ink layer over the phosphor layer; and
screen printing a front electrode over the dielectric layer to transport energy to the indium tin oxide layer.
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Abstract
Signs including electroluminescent lamps are described. In accordance with one embodiment of the present invention, electroluminescent lamps are coupled to a sign by first forming a rear electrode on a front surface of the sign. After forming the rear electrode on the sign, a dielectric layer is screen printed over the rear electrode, and a phosphor layer is screen printed over the dielectric layer. A layer of indium tin oxide ink is then screen printed to the phosphor layer to form an EL lamp.
125 Citations
23 Claims
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1. A method for forming an illuminated design on a substrate, said method comprising the steps of:
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forming an ultraviolet coating on the substrate;
screen printing a rear electrode over the ultraviolet coating;
forming at least one dielectric layer over the rear electrode;
forming a phosphor layer over the dielectric layer;
forming an indium tin oxide ink layer over the phosphor layer; and
screen printing a front electrode over the dielectric layer to transport energy to the indium tin oxide layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 23)
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13. A method for forming an integral electroluminescent lamp and display sign, the display sign including a surface and an illumination arts, said method comprising the steps of:
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screen printing a first electrode on the surface of the sign;
screen printing an indium tin oxide layer on the surface of the sign;
screen printing a phosphor layer over the indium tin oxide layer;
screen printing a dielectric layer onto the sign surface;
forming a second electrode on the sign surface over the dielectric layer; and
screen printing a dielectric background layer over the sign surface, the dielectric background layer including an illumination portion which is substantially aligned with the illumination area. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A sign comprising a surface and an illuminated design coupled thereto, said sign comprising:
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a first electrode formed on said sign surface;
an indium tin oxide layer screen printed on said sign surface;
a phosphor layer screen printed on said indium tin oxide layer;
a dielectric layer screen printed onto said sign surface;
a second electrode formed on the sign surface over the dielectric layer; and
a dielectric background layer screen printed over the sign surface, said dielectric background layer including an illumination portion substantially aligned with the illuminated design. - View Dependent Claims (21, 22)
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Specification