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Organic Light Emitting Diode With Surface Modification Layer

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
An organic light emitting diode includes a substrate having a surface modification layer. The surface modification layer includes a first film and a second film. The first film has a coefficient of expansion that is greater than the coefficient of expansion for the second film. The second film has ridges and troughs. A method of making a surface modification layer. A first film is formed over a substrate. The coated substrate is heated to expand the first film to a second surface area. A second film is formed over the expanded first film. The substrate coated with the first and second films is cooled to form ridges and troughs in the second film.
Basil, John D. (Pittsburgh, PA), Bhandari, Abhinav (Cranberry, PA), Buhay, Harry (Allison Park, PA), Arbab, Mehran (Pittsburgh, PA), Marietti, Gary J. (Cheswick, PA)
15/ 453,477
March 8, 2017
NOTICE OF GOVERNMENT SUPPORT [0002] This invention was made with Government support under Contract No. DE-EE-0003209 awarded by the Department of Energy. The United States government may have certain rights in this invention.