The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2026
Filed:
Jun. 14, 2024
Apple Inc., Cupertino, CA (US);
Byron R Cocilovo, Boulder, CO (US);
Lai Wang, Scotts Valley, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
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 overlapping the second region. The placement, thickness, and/or refractive index of the phase compensation layer may be selected to match the phase of portion of the beam that hits the first region to a phase of the portion of the beam that hits the second region. This may mitigate phase differences across the area of the beam, thereby maximizing the modulation transfer function of the display.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile