ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,517, issued on Feb. 17, was assigned to NANJING BOE DISPLAY TECHNOLOGY Co. LTD. (Nanjing, China) and BOE TECHNOLOGY GROUP Co. LTD. (Beijing).

"Display substrate and display device" was invented by Xu Chen (Beijing), Honggang Gu (Beijing), Yang Shu (Beijing) and Yulin Sun (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display substrate and a display device are provided. The display substrate includes a shift register including an input circuit, an output circuit, a first output pull-down circuit, and a second output pull-down circuit. The input circuit is configured to respond to a first drive signal on a control terminal of the input circ...