US Patent Issued to Apple on Oct. 6 for "Waveguide display having phase compensation layers" (California, Colorado Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,754,375, issued on Oct. 6, was assigned to Apple Inc. (Cupertino, Calif.).

"Waveguide display having phase compensation layers" was invented by Byron R Cocilovo (Boulder, Colo.) and Lai Wang (Scotts Valley, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display may include a substrate layered onto a waveguide. The substrate may include a first region with a first surface relief grating (SRG) and a second region that is non-diffractive or that includes a second SRG. The second region meets the first region at a boundary. A beam of light may be incident upon the substrate at the boundary. A phase compensation layer may be disposed on the waveguide...