ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,550,524, issued on Feb. 10, was assigned to BOE TECHNOLOGY GROUP Co. LTD. (Beijing).

"Display substrate and manufacturing method thereof, preparation apparatus and display apparatus" was invented by Feng Guan (Beijing), Yongfeng Zhang (Beijing), Chaolu Wang (Beijing) and Meng Zhao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display substrate and a preparation method thereof, a preparation apparatus and a display apparatus are provided, which relate to the technical field of display. The display substrate includes a plurality of light-emitting areas and non-light-emitting areas surrounding respective light-emitting areas. The display substr...