ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,786, issued on April 21, was assigned to Dai Nippon Printing Co. Ltd. (Tokyo).
"Optical film and display device" was invented by Yukio Taniguchi (Tokyo) and Takahiro Takeshima (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical film includes a plurality of optical elements. In a case where a first reference line parallel to a film surface is extended in a horizontal direction from a first optical element, a second optical element adjacent to the first optical element is placed at a predetermined spacing in a direction forming a first angle with respect to the first reference line. A third optical element adjacent to the first optical e...