US Patent Issued to 3M Innovative Properties on July 28 for "Microreplicated optical film" (Japanese, American Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,693,468, issued on July 28, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Microreplicated optical film" was invented by Hideaki Shirotori (Yokohama, Japan), Kazuhiko Toyooka (Yamagata, Japan), Sayaka Kado (Yamato City, Japan) and Gary T. Boyd (Woodbury, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A backlight includes a plurality of discrete light sources configured to face a display, and an optical film disposed on the light sources and below and proximate a first plane. The optical film includes a plurality of through-holes extending between first and second major surfaces of the optical film. Each through-hole has a first o...