Electroluminescent panel comprising a dielectric layer of a mixt

Details Electroluminescent panel comprising a dielectric layer of a mixt Electroluminescent panel comprising a dielectric layer of a mixt

1985-02-27

1987-06-02

Swisher, Nancy

Stock material or miscellaneous articles

Composite

Of inorganic material

428691, 428917, 313503, 313509, H05B 3312, B32B 1706

Patent

active

046703551

ABSTRACT:
In an electroluminescent panel comprising a first or transparent electrode, a second or back electrode, and an intermediate layer between the first and the second electrodes, a dielectric layer is included in the intermediate layer and comprises a mixture of tantalum oxide and aluminum oxide. The dielectric layer results from a target of tantalum pentoxide and aluminum oxide by the use of sputtering. Preferably, the target comprises the tantalum oxide and aluminum oxide in a ratio selected between 50:50 and 95:5 by weight. The dielectric layer may be divided into first and second dielectric films which underlies and overlies the electroluminescent layer, respectively. The electroluminescent layer may also be divided into first and second electroluminescent films with a transparent dielectric film interposed therebetween.

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patent: 4547703 (1985-10-01), Fujita et al.

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