ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,699, issued on March 18, was assigned to Japan Display Inc. (Tokyo).
"Liquid crystal optical element" was invented by Koichi Igeta (Tokyo), Shinichiro Oka (Tokyo), Yasushi Tomioka (Tokyo) and Junji Kobashi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, a liquid crystal optical element including a first substrate including a first transparent substrate, a first alignment film, and a first liquid crystal layer which includes first cholesteric liquid crystals, and which reflects part of light incident through the first transparent substrate toward the first transparent substrate, a second substrate including a secon...