US Patent Issued to TCL TECHNOLOGY GROUP on Aug. 26 for "Light-emitting device and preparation method thereof" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,402,469, issued on Aug. 26, was assigned to TCL TECHNOLOGY GROUP Corp. (Huizhou, China).

"Light-emitting device and preparation method thereof" was invented by Yinjie Song (Huizhou, China), Jianxin Zhang (Huizhou, China) and Yixing Yang (Huizhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A preparation method of a light-emitting device includes forming a composite transition layer between a cathode and a quantum dot light-emitting layer and forming an anode on a surface of the quantum dot light-emitting layer away from the cathode. The composite transition layer includes a first transition layer, a second transition layer, and a third transiti...