US Patent Issued to 3M Innovative Properties on March 17 for "Optical film for the reduction of optical artifacts" (Minnesota Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,506, issued on March 17, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Optical film for the reduction of optical artifacts" was invented by Gary T. Boyd (Woodbury, Minn.), David A. Rosen (North Saint Paul, Minn.), Tao Liu (Woodbury, Minn.), Matthew M. Philippi (St. Paul, Minn.) and Brett J. Sitter (Marine on St Croix, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical film for reducing at least one of sparkle and moire in a display system includes a structured first major surface that, in at least a first cross-section in a first plane substantially orthogonal to the optical film, has a sinusoidal shape having a vari...