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Organic light emitting devices for illumination

United States Patent

January 24, 2012
View the Complete Patent at the US Patent & Trademark Office
An organic light emitting device an a method of obtaining illumination from such a device is provided. The device has a plurality of regions, each region having an organic emissive layer adapted to emit a different spectrum of light. The regions in combination emit light suitable for illumination purposes. The area of each region may be selected such that the device is more efficient than an otherwise equivalent device having regions of equal size. The regions may have an aspect ratio of at least about four. All parts of any given region may be driven at the same current.
Hack; Michael (Lambertville, NJ), Lu; Min-Hao Michael (Lawrenceville, NJ), Weaver; Michael S. (Princeton, NJ)
Universal Display Corporation (Ewing, NJ)
11/ 580,590
October 12, 2006
GOVERNMENT RIGHTS This invention was made with Government support under Contract No. DE-FG02-02ER83565 awarded by the Department of Energy. The government has certain rights in this invention.