ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,387,691, issued on Aug. 12, was assigned to HKC CORPORATION LIMITED (Shenzhen, China).

"Method and device for picture detection on a preset detection area of a display panel, display panel, and computer-readable storage medium" was invented by Mancheng Zhou (Guangdong, China) and Junfeng Xie (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes steps of: obtaining a grayscale value of each sub-pixel in each minimum detection unit respectively; and exiting a picture detection function if at least one of the x minimum detection units meets a first preset condition corresponding to the at least one of the x minimum detection un...