ALEXANDRIA, Va., April 15 -- United States Patent no. 12,604,638, issued on April 14, was assigned to Chengdu BOE Optoelectronics Technology Co. Ltd. (Chengdu, China) and BOE Technology Group Co. Ltd. (Beijing).

"Display substrate, display mother board and display apparatus including hollowed-out region" was invented by Wei Wang (Beijing), Bin Liu (Beijing) and Xin Zhou (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a display substrate, which includes: a base substrate, a light-emitting unit provided on the base substrate, and an encapsulation layer provided on a side of the light-emitting unit away from the base substrate. The display substrate includes a display area and a non-display ...