Electroluminescent devices without particle conductive coating

Details Electroluminescent devices without particle conductive coating Electroluminescent devices without particle conductive coating

1988-07-15

1989-07-18

Wieder, Kenneth

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313498, H05B 3320, H05B 3322

Patent

active

048496731

ABSTRACT:
The present invention concerns an electroluminescent panel suitable for unidirectional and/alternating voltage order, a transparent glass substrate (10), a thin transparent front electrode film (12) made of indium-tin-oxide, a first thin (preferably 1-2 microns thick) layer (14) of a phosphor in the form of powder particles, the surface of the particles being free of any metallic coating, e.g. Cu coating, an electrically conducting, dark powder layer (16) which is a control layer consisting e.g. of MnO.sub.2 uncoated or undoped with Cu and a (preferably aluminium) back electrode layer )18).

REFERENCES:
patent: 4137481 (1979-01-01), Hilsum et al.
patent: 4315190 (1982-02-01), Peters et al.
patent: 4652794 (1987-03-01), Waite et al.

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