Thin film electroluminescent device

Details Thin film electroluminescent device Thin film electroluminescent device

1987-12-22

1988-09-27

DeMeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

H05B 3312

Patent

active

047744359

ABSTRACT:
A thin film electroluminescent device including a transparent substrate having a smooth, planar exterior surface and a rough, non-planar interior surface. Layers of a first transparent electrode of indium tin oxide or tin oxide, an insulating material, for example, silicon oxynitride, manganese activated zinc sulfide, an insulating material, and a second electrode of aluminum are deposited in order on the rough, non-planar interior surface of the substrate. The rough, non-planar interface between the phosphor and insulating material provides surfaces at different angles to the light generated within the phosphor layer preventing light from being trapped within the phosphor layer.

REFERENCES:
patent: 4518891 (1985-05-01), Howard, Jr.
patent: 4670690 (1987-06-01), Ketchypel

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