US Patent Issued to Samsung Display on May 6 for "Organic electroluminescence device and polycyclic compound for same" (Japanese Inventor)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,295,257, issued on May 6, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).

"Organic electroluminescence device and polycyclic compound for same" was invented by Takuya Uno (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic electroluminescence device includes a first electrode; a hole transport region disposed on the first electrode; an emission layer disposed on the hole transport region; an electron transport region disposed on the emission layer; and a second electrode disposed on the electron transport region, wherein the hole transport region includes a polycyclic compound of Formula 1: wherein, in Formula 1...