ALEXANDRIA, Va., June 16 -- United States Patent no. 12,660,478, issued on June 16, was assigned to LG DISPLAY Co. LTD. (Seoul, South Korea).
"Electroluminescent display device" was invented by Kyoyeol Chu (Goyang-si, South Korea) and Hyuntae Byun (Gimpo-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electroluminescent display device according to an embodiment of the present disclosure can include a substrate including a display area and a non-display area, a planarization layer disposed on an upper portion of the substrate, a bank disposed on the planarization layer, a stopper disposed on the bank in the non-display area, at least one trench pattern disposed outside the stopper and config...