ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,371, issued on Sept. 23, was assigned to SAMSUNG DISPLAY Co. LTD. (Gyeonggi-Do, South Korea).
"Method of testing display device" was invented by Jehyeon Yoon (Cheonan-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of testing a display device includes obtaining a photographed image by photographing a target substrate, where the target substrate includes patterns arranged in a first direction and a second direction, obtaining grayscale values of the patterns by grayscaling the photographed image, determining an inspection target pattern from among the patterns, obtaining a first comparison value by comparing a grayscale value...