US 11,835,722 B2
Display device with transparent emissive display and see-through lens assembly
Yusufu Njoni Bamaxam Sulai, Snohomish, WA (US); James Ronald Bonar, Redmond, WA (US); and Chloe Astrid Marie Fabien, Seattle, WA (US)
Assigned to META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US)
Filed by META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US)
Filed on Mar. 5, 2020, as Appl. No. 16/810,458.
Claims priority of provisional application 62/901,706, filed on Sep. 17, 2019.
Prior Publication US 2021/0080724 A1, Mar. 18, 2021
Int. Cl. G02B 27/01 (2006.01); G02B 27/10 (2006.01); G02B 3/08 (2006.01); G02B 5/02 (2006.01); H04N 9/31 (2006.01); G02B 5/18 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01); G02F 1/1334 (2006.01); G02F 1/137 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 3/08 (2013.01); G02B 5/0289 (2013.01); G02B 5/1819 (2013.01); G02B 5/3025 (2013.01); G02B 27/0176 (2013.01); G02B 27/10 (2013.01); G02B 27/106 (2013.01); G02B 27/283 (2013.01); G02F 1/137 (2013.01); G02F 1/1334 (2013.01); H04N 9/3152 (2013.01); G02B 2027/0178 (2013.01); G02B 2027/0187 (2013.01); G02F 1/13345 (2021.01)] 19 Claims
OG exemplary drawing
 
1. A display device comprising:
a display having a front surface and a back surface opposite to the front surface, the display being configured to:
output image light from the front surface; and
transmit ambient light from the back surface to the front surface; and
an optical assembly comprising:
a substrate having a substantially uniform thickness;
a beam splitter coupled to the substrate; and
a reflector coupled to the substrate, wherein the optical assembly is configured to:
receive at the beam splitter the image light from the display and transmit a portion of the image light output from the front surface of the display at a first optical power via an optical path including reflections at the reflector and at the beam splitter, wherein the image light received at the beam splitter of the optical assembly has a first polarization upon reaching the beam splitter of the optical assembly from the display; and
receive at the beam splitter the ambient light and transmit a portion of the ambient light through the optical assembly at a second optical power without reflection at the reflector, the second optical power being less than the first optical power, wherein the ambient light received at the beam splitter of the optical assembly has a second polarization orthogonal to the first polarization upon reaching the beam splitter of the optical assembly from outside the optical assembly.