The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 1979
Filed:
Jul. 22, 1976
Aron Vecht, London NW11 7DL, GB;
Raymond Ellis, Wimbourne, Dorset, BH21 2HX, GB;
Other;
Abstract
In an electroluminescent device comprising a layer of electroluminescent material disposed between a pair of electrodes, and a transparent substrate, the electrode between the substrate and the layer of electroluminescent material is transparent and has a surface portion remote from the substrate having properties substantially confining current flow therethrough to discrete regions thereof. In one form the transparent electrode has a first layer adjacent the substrate of electrically-conductive material and a second layer of semiconducting or insulating material. In another form of the transparent electrode this electrode is of a metal oxide and the discrete regions are in a substantially pure form of that metal.