Electroluminescent element including a dielectric film of tantal

Details Electroluminescent element including a dielectric film of tantal Electroluminescent element including a dielectric film of tantal

1995-02-17

1996-12-31

Horabik, Michael

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313506, 313498, H01J 170

Patent

active

055897339

ABSTRACT:
Electroluminescent element includes two dielectric layers disposed on either side of a luminescent layer wherein a transparent electrode and a backing electrode are formed on respective dielectric layers. In a preferred embodiment, the dielectric films include tantalum oxide and at least one oxide of either indium, tin, or zinc wherein the total content of the indium, tin, and zinc atoms in the dielectric layer comprise 55 atomic % or less with respect to the total content of tantalum, indium, tin, and zinc atoms. The dielectric films have a relatively high dielectric constant and high breakdown strength.

REFERENCES:
patent: 4670355 (1987-06-01), Matsudaira
patent: 4702980 (1987-10-01), Matsuura et al.
patent: 5270267 (1993-12-01), Ouellet
patent: 5306547 (1994-04-01), Hood et al.
patent: 5404075 (1995-04-01), Fujikawa et al.
patent: 5480722 (1996-01-01), Tomonaga et al.

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