US Patent Issued to LG Display on Sept. 8 for "Organic light emitting diode and organic light emitting device having thereof" (South Korean Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,733,333, issued on Sept. 8, was assigned to LG Display Co. Ltd. (Seoul, South Korea).

"Organic light emitting diode and organic light emitting device having thereof" was invented by Ku-Sun Choung (Paju-si, South Korea), Han-Sol Park (Paju-si, South Korea) and Yoo-Jeong Jeong (Paju-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an organic light emitting diode (OLED) in which at least one emitting material layer includes a dopant having the following structure of Formula 1 and a biscarbazole-based material and/or an azine-based material, at least one hole transport layer includes a spiro-bifluorene-based m...