ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,219,820, issued on Feb. 4, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).
"Organic light-emitting display device and method of manufacturing the same" was invented by Duckjung Lee (Yongin-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An organic light-emitting display device includes: a substrate; a pixel electrode on the substrate; a pixel defining layer having a first opening exposing a center portion of the pixel electrode; a barrier layer on the pixel defining layer; an intermediate layer including a first common layer, a first emissive layer, and a second common layer sequentially arranged on the pixel electrode, ...