Patent ID: 11863912
Assignee: META PLATFORMS TECHNOLOGIES, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 8:
9. A display device comprising:
a display panel for providing image light, and a lighting unit for the display panel;
a collimator coupled to the display panel for collimating the image light for forming an angular domain image; and
a pupil-replicating lightguide coupled to the collimator for providing multiple offset portions of the image light to an eyebox of the display device;
wherein the lighting unit comprises:
a substrate;
an array of arcuate waveguides supported by the substrate and running substantially parallel to one another to guide illuminating light therein; and
an array of out-couplers operably coupled to the array of arcuate waveguides and configured for out-coupling portions of the illuminating light from the array of arcuate waveguides to illuminate the display panel for producing the image light.