ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,280, issued on July 28, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).
"Light emitting diode" was invented by Keigo Hoshi (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light emitting diode of an embodiment includes a first electrode, a second electrode, and at least one functional layer disposed between the first electrode and the second electrode, wherein the at least one functional layer includes a polycyclic compound represented by Formula A or Formula B, thereby showing high emission efficiency properties and improved life characteristics."
The patent was filed on April 14, 2022, under Application No. 17/...