US Patent 7564181 Performance enhancement layer for OLED devices

Patent 7564181 was granted and assigned to Eastman Kodak on July, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Eastman Kodak

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7564181

Date of Patent

July 21, 2009

Patent Application Number

11102358

Date Filed

April 8, 2005

Patent Primary Examiner

‌

Nimeshkumar D. Patel

Patent abstract

An organic light-emitting device includes a substrate; a first electrode and a second electrode positioned relative to the substrate in which at least one of the electrodes is the transparent electrode; an organic light-emitting element including at least a light-emitting layer disposed between the two electrodes; and a performance enhancement layer disposed between the two electrodes; wherein the performance enhancement layer is high index and has a thickness of at least 20 nm.