ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,217,719, issued on Feb. 4, was assigned to TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY Co. LTD. (Shenzhen, China).

"Pixel driving circuit and display device" was invented by Yan Li (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides a pixel driving circuit and a display device. The pixel driving circuit includes a scanning signal line and a data signal line. A pixel driving circuit unit includes at least two cascaded units, wherein the pixel driving circuit unit is configured to change a connection number of cascaded units that are connected to the data signal line and a light emitting diode, to adjust a brightn...