Thin film electroluminscent display device

Details Thin film electroluminscent display device Thin film electroluminscent display device

1983-10-11

1985-10-15

DeMeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

H05B 3322

Patent

active

045477027

ABSTRACT:
An improved dark field material for use in a thin film electroluminescent display device that typically includes a transparent electrode layer, a segmented electrode layer and an electroluminescent phosphor layer between the electrode layers. The improved dark field layer is of a composition of a dielectric material such as the preferred magnesium oxide and a noble metal, which is preferably gold co-evaporated by way of an electron beam deposition technique. The preferred range of noble metal by volume is 6%-10%. By varying the noble metal content within this range, there is provided control of the operating temperature of the electroluminescent display device.

REFERENCES:
patent: 4027192 (1977-05-01), Hanak
patent: 4326007 (1982-04-01), Williams et al.
patent: 4369393 (1983-01-01), Frame
patent: 4455506 (1984-06-01), Ayyagari et al.
"Electroluminescence in ZnS: Mn.sub.x : Cu.sub.y rf-Sputtered Films", by J. J. Hanak, Japanese Journal of Applied Physics, Suppl. 2, Pt. 1, pp. 809-812, 1974.

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