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:
May. 15, 2012
Filed:
Feb. 07, 2007
Herbert Friedrich Boerner, Aachen, DE;
Stefan Peter Grabowski, Aachen, DE;
Hans Helmut Bechtel, Roetgen, DE;
Herbert Friedrich Boerner, Aachen, DE;
Stefan Peter Grabowski, Aachen, DE;
Hans Helmut Bechtel, Roetgen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The present invention relates to a light emitting device () having at least a first () and a second light emitting element (), with the first light emitting element () emitting a first light () and the second light emitting element () emitting a second light (), each light emitting element () being an OLED (), the OLED () comprising a sandwich structure with a substrate (), a first () and a second electrode () and an organic layer () being provided between the first () and the second electrode (), a light () leaving the light emitting device (), wherein at least a part of said light () is provided by a superposition of the first () and the second light ().