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OLED with area defined multicolor emission within a single lighting element

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Disclosed is an organic electroluminescent device, comprising: a) a substrate; b) a hole-injecting electrode (anode) coated over the substrate; c) a hole injection layer coated over the anode; e) a composite light emitting layer comprising two or more light emissive materials, coated over the hole transporting layer; and f) an electron-injecting electrode (cathode) deposited over the composite light emissive layer, the electrodes commonly and singularly addressing the composite light emissive layer.
Mathai, Mathew (Monroeville, PA), Choong, Vi-En (San Jose, CA), Choulis, Stelios A. (San Jose, CA)
Osram Opto Semiconductors GmbH
11/ 345,835
February 1, 2006
GOVERNMENT RIGHTS [0001] This invention was made with Government support under Contract No. DE-FC26-04NT41947 awarded by the Department of Energy. The Government may have certain rights in the invention.