ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,550,432, issued on Feb. 10, was assigned to LG Display Co. Ltd. (Seoul, South Korea).
"Organic light emitting diode display apparatus" was invented by Jin-Sung Kim (Paju-si, South Korea), A-Ram Kim (Paju-si, South Korea) and Bok-Young Lee (Paju-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An organic light emitting display apparatus is disclosed that comprises a substrate including a first portion and a second portion; a first thin film transistor having a first polycrystalline semiconductor pattern, the first thin film transistor on the first portion of the substrate; a second thin film transistor having a first oxide semiconductor pat...