ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,550,519, issued on Feb. 10, was assigned to Shanghai Tianma Micro-Electronics Co. Ltd. (Shanghai).
"Organic light-emitting device, display device, electronic apparatus, onboard display, and vehicle" was invented by Keita Hamada (Kanagawa, Japan) and Shigeru Mori (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An organic light-emitting device includes an anode electrode and a cathode electrode that are arranged facing each other; a light-emitting layer arranged between the anode electrode and the cathode electrode; and a hole transport layer arranged between the anode electrode and the light-emitting layer, contacting the light-emitting l...