US Patent Issued to Samsung Display on April 29 for "Organic light-emitting device and apparatus including the same" (South Korean Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,289,987, issued on April 29, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).

"Organic light-emitting device and apparatus including the same" was invented by Jaeweon Hur (Yongin-si, South Korea), Kyungsik Kim (Yongin-si, South Korea), Sungwook Kim (Yongin-si, South Korea), Seulong Kim (Yongin-si, South Korea), Seungjin Chu (Yongin-si, South Korea) and Hyein Jeong (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic light-emitting device in which a hole transport region includes a first hole transport stack, a second hole transport stack between the first hole transport stack and an emission layer, and an el...