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:
Aug. 21, 2012
Filed:
Dec. 21, 2009
James Michael Kostka, Mayfield Heights, OH (US);
James Michael Kostka, Mayfield Heights, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
The present invention relates to an electro-optical device, wherein the device is a light source, for example an OLED. The OLED includes at least a substrate, a cathode, an anode, one or more organic light-emissive materials disposed between the cathode and anode, and a gradient refractive index film disposed on an external, light emitting surface of the device, for example on the substrate layer. Alternatively, the device may be constructed with the gradient refractive index film as the substrate, and/or the gradient refractive index film may be applied to more than one light-emitting surface of a device.