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. 17, 2011
Filed:
Apr. 06, 2006
Hans-helmut Bechtel, Roetgen, DE;
Wolfgang Busselt, Roetgen, DE;
Hans-Helmut Bechtel, Roetgen, DE;
Wolfgang Busselt, Roetgen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A substrate () made of a transparent material, preferably glass, which substrate has a planar first side () for the application of an electroluminescent layered structure () for emitting light and having a structured second side () for the effective coupling-out of light (), comprising at least one element of structure () comprising first regions () having first surfaces () that have a surface roughness of between 0.2 μm and 100 μm, and preferably of between 0.4 μm and 70 μm, and as a particular preference of between 0.7 μm and 40 μm.