US Patent Issued to 3M Innovative Properties on April 7 for "Light control film including optical cavities containing liquid" (Wisconsin, Minnesota Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,209, issued on April 7, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Light control film including optical cavities containing liquid" was invented by Kevin W. Gotrik (Hudson, Wis.), Stephen J. Etzkorn (Woodbury, Minn.), Nicholas A. Johnson (Burnsville, Minn.), Tao Liu (Woodbury, Minn.), John J. Sullivan (Hudson, Wis.) and Bharat R. Acharya (Woodbury, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light control film includes a plurality of substantially parallel optical cavities. Each of the optical cavities has a height H along a thickness direction of the light control film and a minimum lateral dimension W along an in-p...