ALEXANDRIA, Va., March 24 -- United States Patent no. 12,588,395, issued on March 24, was assigned to BOE Technology Group Co. Ltd. (Beijing).

"Display substrate and preparation method thereof, and display apparatus" was invented by Ziyu Zhang (Beijing), Tao Wang (Beijing), Tao Sun (Beijing), Youwei Wang (Beijing) and Rui Hong (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a display substrate and preparation method thereof, and a display apparatus. The display substrate includes a display region, and the display region includes at least one pin area, in a plane perpendicular to the display substrate, the pin area includes a planarization layer disposed on a base subst...