US 12,405,494 B2
Display with off-state transparency
Tao Zhan, Saratoga, CA (US); Joshua A Spechler, Campbell, CA (US); Jun Qi, San Jose, CA (US); Ling Han, Santa Clara, CA (US); Rong Liu, Sunnyvale, CA (US); and Victor H Yin, Cupertino, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jun. 2, 2023, as Appl. No. 18/328,262.
Claims priority of provisional application 63/394,555, filed on Aug. 2, 2022.
Prior Publication US 2024/0045259 A1, Feb. 8, 2024
Int. Cl. G02F 1/1335 (2006.01); G02F 1/1334 (2006.01); G02F 1/137 (2006.01)
CPC G02F 1/133504 (2013.01) [G02F 1/1334 (2013.01); G02F 1/133512 (2013.01); G02F 1/133553 (2013.01); G02F 1/13718 (2013.01); G02F 1/13775 (2021.01); G02F 2203/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a housing; and
a projection display that is configured to display images and that is coupled to the housing, wherein the projection display comprises:
an adjustable diffuser operable in a first mode and a second mode in which diffusion is higher than the first mode;
a spatial light modulator configured to project light for the images onto the adjustable diffuser while the adjustable diffuser is in the second mode, wherein the adjustable diffuser is configured to operate in the first mode when the projection display is off; and
a mirror that reflects the light from the spatial light modulator onto the adjustable diffuser.