US Patent Issued to 3M Innovative Properties on Aug. 25 for "Touch systems using near infrared films" (American, Chinese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,445, issued on Aug. 25, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Touch systems using near infrared films" was invented by Fan Long (Guangzhou, China), Edward S. Hagermoser (Lancaster, Mass.) and Bharat R. Acharya (Woodbury, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display system includes a substrate, an optically reflecting first film defining a plurality of first openings across a length and a width of the first major surface, pluralities of visible light emitting first devices, infrared light emitting second devices, and infrared light detecting third devices disposed in the first openings of the first film an...