US 12,072,601 B2
Electrically-tunable optical filter
Jiayu Li, Cupertino, CA (US); and Dawei Lu, Campbell, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Mar. 29, 2023, as Appl. No. 18/127,889.
Application 18/127,889 is a continuation of application No. 17/330,274, filed on May 25, 2021, granted, now 11,619,857.
Prior Publication US 2023/0236469 A1, Jul. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/23 (2006.01); G01J 1/04 (2006.01); G01J 1/42 (2006.01); G02F 1/01 (2006.01); H01L 31/0232 (2014.01); H01L 33/58 (2010.01)
CPC G02F 1/23 (2013.01) [G01J 1/0488 (2013.01); G01J 1/4204 (2013.01); G02F 1/0121 (2013.01); H01L 31/02327 (2013.01); H01L 33/58 (2013.01); G02F 2203/055 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optoelectronic device, comprising:
a pixel having a light-emitting surface and including,
a metasurface disposed over the light-emitting surface and including an array of conductive nanostructures disposed on a first conductive layer;
a second conductive layer disposed over the light-emitting surface; and
an insulating layer disposed over the light-emitting surface, between the metasurface and the second conductive layer;
a voltage source electrically connected to the metasurface and the second conductive layer; and
a controller configured to change a voltage between the metasurface and the second conductive layer.