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:
Oct. 06, 2015
Filed:
Aug. 14, 2007
Hans-peter Loebl, Monschau-Imgenbroich, DE;
Volker Van Elsbergen, Aachen, DE;
Edward Willem Albert Young, Maastricht, NL;
Hans-Peter Loebl, Monschau-Imgenbroich, DE;
Volker Van Elsbergen, Aachen, DE;
Edward Willem Albert Young, Maastricht, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
An electroluminescent device () for emitting light () whose color point is able to be set variably, comprising at least two electroluminescent regions () that, to allow the same operating voltage to be applied, are arranged to be connected in parallel electrically, wherein the electroluminescent regions () comprise—at least one first electroluminescent region () of a first electroluminescent material for emitting light in a first spectral band in accordance with a first luminance vs. voltage characteristic (), and—at least one second electroluminescent region () of a second electroluminescent material for emitting light in a second spectral band that is not the same as the first spectral band, in accordance with a second luminance vs. voltage characteristic () that is not the same as the first luminance vs. voltage characteristic ().