US Patent Issued to LG Display on July 22 for "Organic light emitting display device for enhancing efficiency" (South Korean Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. RE50,505, issued on July 22, was assigned to LG Display Co. Ltd. (Seoul, South Korea).

"Organic light emitting display device for enhancing efficiency" was invented by YoungKwan Jung (Paju-si, South Korea), Heedong Choi (Uiwang-si, South Korea) and Seunghyun Kim (Gwangju, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an organic light emitting display device. The organic light emitting display device includes a first emission part between a first electrode and a second electrode and a second emission part on the first emission part. The first emission part includes a first hole transport layer and a first emission layer, and the se...