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:
Jun. 02, 2026
Filed:
Apr. 11, 2023
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Renate Eva Klementine Landig, Kirkland, WA (US);
Daniel Guenther Greif, Kirkland, WA (US);
Sihui He, Sunnyvale, CA (US);
Babak Amirsolaimani, Redmond, WA (US);
Jacques Gollier, Sammamish, WA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
A display device includes a scanning projector coupled to a lightguide having at least one of in-coupling or out-coupling gratings switchable. The switchable in-coupling grating lessens optical losses related to beam walkoff and out-coupling by the in-coupling grating, and/or the switchable out-coupling grating improves light utilization by only sending the image light to the area where user's eye is located. The out-coupling grating switching may be coordinated with the scanning of an image light beam by the scanning projector to account for a finite turn-on and turn-off time of the switchable grating to reduce undesired image distortions and other deleterious effects.