US Patent Issued to Dai Nippon Printing on July 8 for "Diffusing member, manufacturing method of diffusing member, planar light source device, display device, and dielectric multilayer film" (Japanese Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,353,092, issued on July 8, was assigned to Dai Nippon Printing Co. Ltd. (Tokyo).

"Diffusing member, manufacturing method of diffusing member, planar light source device, display device, and dielectric multilayer film" was invented by Marii Nishikawa (Tokyo-to, Japan), Yasuyuki Oyagi (Tokyo-to, Japan), Yukio Taniguchi (Tokyo-to, Japan) and Masahiro Goto (Tokyo-to, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A planar light source device includes a light diffusing portion and a light reflecting portion in this order. The light diffusing portion has light transmissivity and light diffusivity. Reflectance of the light reflecting portion with respect ...