ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,530, issued on May 13, was assigned to SAMSUNG DISPLAY Co. LTD. (Gyeonggi-Do, South Korea).

"Metal mask, method of manufacturing the same, and method of manufacturing display panel using the metal mask" was invented by Hyosung Kim (Hwaseong-si, South Korea), JinYoung Choi (Suwon-si, South Korea), Sungmin Hur (Yongin-si, South Korea), Nari Ahn (Seongnam-si, South Korea), Hyeongsuk Yoo (Asan-si, South Korea) and Dongwon Han (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A deposition mask includes a metal mask body in which a deposition opening is defined; and a coating layer including aluminum oxynitride, on an outer surface of the...