US Patent Issued to Dai Nippon Printing on Dec. 2 for "Display device and method for manufacturing optical film" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,490,637, issued on Dec. 2, was assigned to Dai Nippon Printing Co. Ltd. (Tokyo).

"Display device and method for manufacturing optical film" was invented by Tsuyoshi Kashiwagi (Tokyo), Shinsuke Nakazawa (Tokyo) and Takahiro Takeshima (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display device includes a display panel that emits light from a plurality of pixels arrayed at predetermined pixel array pitches and an optical film, placed over the display panel so as to allow passage of light from the plurality of pixels, that includes first and second optical functional parts differing in optical performance from each other. The first and second opti...