ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,210,153, issued on Jan. 28, was assigned to Digilens Inc. (Sunnyvale, Calif.).
"Holographic waveguide display with light control layer" was invented by Jonathan David Waldern (Diablo, Calif.), Alastair John Grant (San Jose, Calif.) and Milan Momcilo Popovich (Leicester, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Waveguides and waveguide displays having a layer for blocking non-image light (i.e. haze) that could otherwise reduce contrast and degrade color gamut and uniformity, while providing high transmission to external light are provided. Many waveguides and displays incorporate at least one light control layer applied to at least on...