ALEXANDRIA, Va., April 15 -- United States Patent no. 12,604,602, issued on April 14, was assigned to LG Display Co. Ltd. (Seoul, South Korea).
"Display apparatus" was invented by Jeongeun Won (Seoul, South Korea), Seungryong Joung (Seoul, South Korea), Chunki Kim (Seoul, South Korea) and Yosub Lee (Goyang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A display apparatus according to an example embodiment of the present disclosure includes a cathode electrode over a substrate, a first emission part over the cathode electrode, the first emission part including a first electron transport layer, a first emission layer, a first hole transport layer, and a first charge generation layer, a second ...