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Stacked white OLED having separate red, green and blue sub-elements

United States Patent

June 28, 2016
View the Complete Patent at the US Patent & Trademark Office
The present invention relates to efficient organic light emitting devices (OLEDs). More specifically, the present invention relates to white-emitting OLEDs, or WOLEDs. The devices of the present invention employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. The sub-elements are separated by charge generating layers.
Forrest; Stephen (Ann Arbor, MI), Qi; Xiangfei (Ann Arbor, MI), Slootsky; Michael (Ann Arbor, MI)
The Regents of the University of Michigan (Ann Arbor, MI)
14/ 746,571
June 22, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with U.S. Government support under Contract No. DE-FG02-07ER84809 awarded by the Department of Energy. The government may have certain rights in this invention.