ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,215, issued on Jan. 28, was assigned to TCL TECHNOLOGY GROUP Corp. (Huizhou, China).
"Method for preparing quantum dots light-emitting diode" was invented by Jie Zhang (Guangdong, China) and Chaoyu Xiang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application discloses a method for preparing quantum dots light-emitting diode, including following steps: providing a base plate, wherein an upper surface of the base plate is provided with quantum dots light-emitting layer; and immersing the base plate in a solvent system to perform an ultrasonic processing, wherein the solvent system comprises: a host solvent and doping ...