US 12,022,054 B2
Volumetric display including liquid crystal-based lenses
Afsoon Jamali, Redmond, WA (US); Yang Zhao, Kirkland, WA (US); Wai Sze Tiffany Lam, Redmond, WA (US); Lu Lu, Kirkland, WA (US); and Douglas Robert Lanman, Bellevue, WA (US)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Jan. 31, 2022, as Appl. No. 17/649,436.
Application 17/649,436 is a continuation of application No. 16/723,152, filed on Dec. 20, 2019, granted, now 11,240,488.
Claims priority of provisional application 62/905,113, filed on Sep. 24, 2019.
Prior Publication US 2022/0159236 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 13/388 (2018.01); G02F 1/01 (2006.01); G09G 3/00 (2006.01); H04N 13/332 (2018.01); H04N 13/398 (2018.01)
CPC H04N 13/388 (2018.05) [G09G 3/003 (2013.01); H04N 13/332 (2018.05); H04N 13/398 (2018.05); G02F 1/0136 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A volumetric display comprising:
a two-dimensional display;
a varifocal optical system configured to receive image light from the two-dimensional display and focus the image light; and
at least one processor configured to:
control the two-dimensional display to cause a plurality of sub-frames associated with an image frame to be displayed by the display in an order corresponding to a depth value range of each sub-frame of the plurality of sub-frames, wherein each sub-frame of the plurality of sub-frames includes a corresponding portion of image data associated with the image frame, wherein each sub-frame includes a plurality of pixels of the image frame binned into the sub-frame based on depth values associated with the pixels, and wherein the depth value range of each sub-frame is determined based on the depth values associated with the pixels such that a first sub-frame of the plurality of sub-frames includes one or more first pixels, of the plurality of pixels, having depth values between a first depth and a second depth greater than the first depth and a second sub-frame of the plurality of sub-frames includes one or more second pixels, of the plurality of pixels, having depth values greater than the second depth; and
control the varifocal optical system to a corresponding focal state for each respective sub-frame.