US Patent Issued to Hefei BOE Joint Technology, BOE Technology Group on Aug. 26 for "Organic light emitting device, display substrate and display apparatus" (Chinese Inventor)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,402,471, issued on Aug. 26, was assigned to Hefei BOE Joint Technology Co. Ltd. (Anhui, China) and BOE Technology Group Co. Ltd. (Beijing).

"Organic light emitting device, display substrate and display apparatus" was invented by Wenbin Jia (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic light emitting device, a display substrate and a display apparatus are provided, wherein the organic light emitting device comprises an anode, an organic light emitting layer, a first transition protective layer and a cathode which are stacked sequentially; the organic light emitting layer comprises a hole injection layer, a light emitting material lay...