ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,631, issued on Aug. 5, was assigned to Japan Display Inc. (Tokyo).

"Light adjustment device" was invented by Daisuke Hamano (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to an aspect, a light adjustment device includes: first, second, and third frames and light adjustment panels. The first frame, the second frame, and the third frame have annular shapes and are stacked in a first direction. The first frame includes a first hook that protrudes to the one side in the first direction. The second frame includes a first cutout into which the first hook is hooked, and a second hook that protrudes to the one side in the first direction. Th...