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:
Jun. 30, 2015
Filed:
Nov. 30, 2009
Patterned led device, method of generating a patterning, system and method of calibrating the system
Coen A. Verschuren, Eindhoven, NL;
Margaretha M. DE Kok, Eindhoven, NL;
Coen A. Verschuren, Eindhoven, NL;
Margaretha M. De Kok, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A patterned light emitting diode device includes a layer of light emitting material between an anode and a cathode. Further, a light-reflective layer is visible through a light-emission window of the patterned light emitting diode device. The light-reflective layer includes a pattern formed by local deformations of the light-reflective layer. The pattern may be generated via impinging condensed light beam which may enter via a rear-wall of the light-reflective layer, or via impinging the condensed light beam through the light-emission window on the light-reflective layer. The deformations may be generated without significantly altering the conductivity of the light-reflective layer. An effect of this patterned light emitting diode device is that the pattern remains clearly visible both during an on-state and during an off-state of the light emitting diode device.