ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,858, issued on April 14, was assigned to Envisics Ltd (Milton Keynes, Great Britain).
"Light control film" was invented by Yiren Xia (Milton Keynes, Great Britain) and Timothy Smeeton (Milton Keynes, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a light control film. The method includes providing a plurality of alternating layers of transparent material and light absorbing material, where the alternating layers of transparent material and light absorbing material are stacked in a stacking direction. The method also includes cutting, with a triangle wave-shaped edge, across the plurality of alternating layers...