US Patent Issued to TCL TECHNOLOGY GROUP on Nov. 3 for "Preparation method for QLED device, display substrate, and display apparatus" (Chinese Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,787,537, issued on Nov. 3, was assigned to TCL TECHNOLOGY GROUP Corp. (Huizhou, China).

"Preparation method for QLED device, display substrate, and display apparatus" was invented by Qiang Luo (Huizhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a preparation method for a QLED device, a display substrate, and a display apparatus. In the QLED device of the present disclosure, reductive gas is continuously introduced during a quantum dot light-emitting layer forming stage so as to react with oxygen in the environment, to prevent an interface reaction between the quantum dot light-emitting layer and the oxygen in t...