ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,543,486, issued on Feb. 3, was assigned to BOE Technology Group Co. Ltd. (Beijing).
"Display substrate and display device" was invented by Haiyan Sun (Beijing), Xiaojin Zhang (Beijing) and Siqi Wang (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A display substrate and a display device are provided. The display substrate includes a light emitting element disposed on a base substrate, and an encapsulation layer, a connection layer, a light extraction layer, a polarization conversion layer and a polarization layer stacked sequentially at a light exiting side of the light emitting element. The light extraction layer is configured to convert at leas...