Electroluminescent sign
AssigneeLumimove Company, MO L.L.C.
InventorMatthew M. Murasko
Life of this patent
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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.
Claims23
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.
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:
- 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.
A sign comprising a surface and an illuminated design coupled thereto, said sign comprising:
- 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.
Dependencies are inferred from the claim text.