ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,217, issued on April 7, was assigned to JAPAN DISPLAY INC. (Tokyo).
"Optical element and display device" was invented by Toshiharu Matsushima (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical element includes a first polarizing plate having a first absorption axis, a second polarizing plate facing the first polarizing plate and having a second absorption axis, and a first liquid crystal film and a second liquid crystal film provided between the first polarizing plate and the second polarizing plate. The second polarizing plate, the second liquid crystal film, the first liquid crystal film, and the first polarizing plate are stacked in...