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OLED WITH MULTI-EMISSIVE MATERIAL LAYER

United States Patent Application

20170301871
A1
View the Complete Application at the US Patent & Trademark Office
The present invention relates to organic light emitting devices with a multi-emissive material layer (EML), where a multi-EML generally refers to an emissive layer having at least two layers of emissive material, each layer having a different emitter concentration (e.g. a first EML in direct contact with a second EML, and the emitter concentration of the first EML (hole favorable) exceeds that of the second EML (electron favorable)).
Li, Jian (Tempe, AZ)
15/ 487,476
April 14, 2017
STATEMENT OF GOVERNMENT INTEREST [0002] This invention was made with government support under DE-EE0007090 awarded by the Department of Energy. The government has certain rights in the invention.