Facebook Technologies, LLC

Meta Platforms Technologies, LLC

Seungjae Lee

Lu Lu

Gang Li

Mengfei Wang

Mengfi Wang

Various embodiments set forth a foveated display system and components thereof. The foveated display system includes a peripheral display module disposed in series with a foveal display module. The peripheral display module is configured to generate low-resolution, large field of view imagery for a user's peripheral vision. The foveal display module is configured to perform foveated rendering in which high-resolution imagery is focused towards a foveal region of the user's eye gaze. The peripheral display module may include a diffuser that is disposed within a pancake lens, which is a relatively compact design. The foveal display module may include a Pancharatnam-Berry Phase grating stack that increases the steering range of a beam-steering device such that a virtual image can be steered to cover an entire field of view visible to the user's eye.

Switchable Pancharatnam-Berry phase grating stack

Pancake lens including diffuser

Foveated display system

Growing community of inventors

Redmond, WA, United States of America

Seungjae Lee