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:
Jun. 23, 2015
Filed:
May. 27, 2014
Applicant:
The Regents of the University of Michigan, Ann Arbor, MI (US);
Inventors:
Stephen Forrest, Ann Arbor, MI (US);
Xiangfei Qi, Ann Arbor, MI (US);
Michael Slootsky, Ann Arbor, MI (US);
Assignee:
The Regents of the University of Michigan, Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 51/50 (2006.01); H01L 27/32 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/504 (2013.01); H01L 27/3206 (2013.01); H01L 27/3209 (2013.01); H01L 27/3211 (2013.01); H01L 51/5016 (2013.01); H01L 51/5036 (2013.01); H01L 51/5278 (2013.01);
Abstract
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.