ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,204, issued on Aug. 25, was assigned to HKC CORPORATION LIMITED (Shenzhen, China).

"Electronic paper display and driving method thereof" was invented by Han Mao (Shenzhen, China) and Junfeng Xie (Shenzhen Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an electronic paper display and a driving method thereof. The electronic paper display includes a first substrate and a second substrate arranged oppositely, and an electronic ink layer disposed therebetween. A common electrode is provided on a side of the first substrate facing the electronic ink layer, and a plurality of pixel units are provided on a side of the second su...