ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,538,686, issued on Jan. 27, was assigned to BOE TECHNOLOGY GROUP Co. LTD. (Beijing).

"Light-emitting substrate and manufacturing method thereof, and light-emitting apparatus" was invented by Xu Yuan (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting substrate includes a plurality of light-emitting devices including at least one first light-emitting device. Each light-emitting device includes a light-emitting pattern The first light-emitting device further includes a first material layer including a first material A material of a light-emitting pattern included in first light-emitting device includes a first light-emitting material....