Invention Grant
- Patent Title: Method to reduce diffraction artifacts in a waveguide display and display using the same
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Application No.: US17218798Application Date: 2021-03-31
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Publication No.: US11561402B2Publication Date: 2023-01-24
- Inventor: Andrew Maimone , Oleg Yaroshchuk
- Applicant: Meta Platforms Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Meta Platforms Technologies, LLC
- Current Assignee: Meta Platforms Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Millburn IP PLLC
- Main IPC: G02B27/01
- IPC: G02B27/01 ; F21V8/00 ; G09G3/00

Abstract:
A system is provided. The system includes a waveguide configured to guide an image light to propagate inside the waveguide. The system also includes a plurality of diffractive components coupled to the waveguide and switchable between operating in a diffraction state to direct the image light from the waveguide to an eye-box of the system, and operating in a non-diffraction state to transmit a light from a real-world environment to the eye-box. The system further includes a controller coupled with the plurality of diffractive components and configured to switch each of the plurality of diffractive components between operating in the diffraction state during a virtual-world subframe of a display frame and operating in the non-diffraction state during a real-world subframe of the display frame.
Public/Granted literature
- US20210215938A1 METHOD TO REDUCE DIFFRACTION ARTIFACTS IN A WAVEGUIDE DISPLAY AND DISPLAY USING THE SAME Public/Granted day:2021-07-15
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