ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,230,194, issued on Feb. 18, was assigned to Xiamen Tianma Display Technology Co. Ltd. (Xiamen, China).
"Display panel and display device" was invented by Chengxu Li (Xiamen, China), Xiangyuan Li (Xiamen, China), Jingzhu Li (Xiamen, China) and Bing Wang (Xiamen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a display panel and a display device. The display panel includes a substrate and a drive circuit disposed on one side of the substrate. The drive circuit includes a first transistor. The first transistor includes a first active layer. The first active layer includes an oxide semiconductor. The drive circuit also includes a first ca...