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:
Mar. 22, 2016
Filed:
Mar. 01, 2013
Oledworks Gmbh, Aachen, DE;
Dirk Hente, Wuerselen, DE;
OLEDWORKS GMBH, , DE;
Abstract
The invention relates to an electroluminescent lighting device, which is based on an array of standard electroluminescent tiles (D-D) combined with an array of ballast components (R-R) mounted on a carrier board () in such a way that the power loss is evenly spread across the whole board area to minimize local electric power in the ballast components. The unavoidable remaining hot spots and electroluminescent tiles are thermally coupled in such a way that the additional thermal load on the electroluminescent emission layer is as symmetric as possible with respect to the self heating of the electroluminescent device. This can be achieved by a combination of properly designed heat spreading and thermal isolation of the electroluminescent and ballast components. Heat spreading is achieved by a properly designed interconnection structure () on the carrier board. Different options are proposed to thermally isolate the electroluminescent tiles from the hot spots.