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. 08, 2013
Filed:
Feb. 19, 2009
Cristina Tanase, Eindhoven, NL;
Herbert Lifka, Eindhoven, NL;
Mihaela Ioana Popovici, Leuven, BE;
Horst Greiner, Aachen, DE;
Cristina Tanase, Eindhoven, NL;
Herbert Lifka, Eindhoven, NL;
Mihaela Ioana Popovici, Leuven, BE;
Horst Greiner, Aachen, DE;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
Disclosed is an optoelectronic device including at least one optoelectronic active region comprising at least a rear electrode and a front electrode between which an organic optoelectronic material is sandwiched, said rear electrode being reflective, and a cover layer arranged in front of said front electrode. The cover layer is formed from a material with light-scattering particles of a first material dispersed in a transparent matrix of at an least partly hydrolyzed silica sol. Due to the highly scattering properties of the cover layer, the device is essentially concealed behind the cover layer when not in its operative state.