ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,838, issued on June 23, was assigned to LG Display Co. Ltd. (Seoul, South Korea).

"Light emitting display device" was invented by Ho-Jin Kim (Paju-si, South Korea), Seung-Min Baik (Paju-si, South Korea), Hyeong-Jun Lim (Paju-si, South Korea) and Bong-Choon Kwak (Paju-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display device includes a trench, which includes: first and second trench lines respectively located between neighboring column lines and between neighboring row lines, wherein the first trench line includes a first side groove in a column direction, and first and second corner grooves connected between adjacent first side...