ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,758, issued on March 18, was assigned to Japan Display Inc. (Tokyo).
"Illumination device and display device" was invented by Masashi Mitsui (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, an illumination device includes an electrochromic element and light sources. The electrochromic element includes a first transparent substrate, a first transparent electrode provided on the first transparent substrate, a second transparent substrate opposing the first transparent substrate, projections provided on the second transparent substrate and projecting toward the first transparent substrate, a second transparent electro...