ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,762, issued on March 18, was assigned to Japan Display Inc. (Tokyo).

"Optical element including stacked liquid crystal cells" was invented by Kojiro Ikeda (Tokyo) and Takeo Koito (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A first liquid crystal cell of a plurality of liquid crystal cells of an optical element includes a first alignment film covering first and second transparent electrodes on a first substrate, a second alignment film covering third and fourth transparent electrodes on a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The first liquid crystal cell includes the first and s...