ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,675, issued on June 23, was assigned to Japan Display Inc. (Tokyo).

"Liquid crystal light control device" was invented by Kojiro Ikeda (Tokyo), Takeo Koito (Tokyo) and Tae Kurokawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid crystal light control device includes a first liquid crystal cell, a second liquid crystal cell overlapping the first liquid crystal cell, a third liquid crystal cell overlapping the second liquid crystal cell, and a fourth liquid crystal cell overlapping the third liquid crystal cell. Each of the first, second, third, and the fourth liquid crystal cells includes, a first substrate including a first alignment ...