Forming a thin-film EL element

Details Forming a thin-film EL element Forming a thin-film EL element

1996-01-30

1997-09-23

Utech, Benjamin

Coating processes

Electrical product produced

Metallic compound coating

427162, 427166, 4272551, B05D 512

Patent

active

056702078

ABSTRACT:
A thin-film EL element which does not permit the color of the emitted light to change irrespective of a change in the voltage, which remains chemically stable and which emits light of high brightness even on a low voltage. The element comprises two or more polycrystalline thin light emitting layers (4, 5, 6) and one or more thin insulating layers (3, 7). The interface between a thin film and a thin film constituting a light emitting layer is formed by epitaxial growth, and the electrical characteristics of the element are equivalent to those of a single circuit which includes two Zener diodes (12, 13) connected in series, a capacitor (14) connected in parallel with the serially connected Zener diodes, and a capacitor (15) connected to one end of the capacitor (14).

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