US 12,140,474 B2
Ambient light sensing
Matthew Sampsell, Melissa, TX (US); George R. Kelly, McKinney, TX (US); and James Archibald, Jona (CH)
Assigned to AMS INTERNATIONAL AG, Jona (CH)
Appl. No. 18/000,930
Filed by ams International AG, Jona (CH)
PCT Filed Jun. 1, 2021, PCT No. PCT/EP2021/064646
§ 371(c)(1), (2) Date Dec. 6, 2022,
PCT Pub. No. WO2021/249823, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 2008691 (GB), filed on Jun. 9, 2020.
Prior Publication US 2023/0228621 A1, Jul. 20, 2023
Int. Cl. G09G 3/3225 (2016.01); G01J 1/02 (2006.01); G01J 1/04 (2006.01); G01J 1/42 (2006.01); H10K 59/60 (2023.01); G01J 1/44 (2006.01); H10K 59/80 (2023.01)
CPC G01J 1/4204 (2013.01) [G01J 1/0233 (2013.01); G01J 1/0238 (2013.01); G01J 1/0429 (2013.01); G01J 1/4228 (2013.01); H10K 59/60 (2023.02); G01J 2001/444 (2013.01); G09G 3/3225 (2013.01); G09G 2360/144 (2013.01); G09G 2360/16 (2013.01); H10K 59/8791 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A system comprising:
a display, wherein the display comprises an array of light emitting diodes;
an ambient light sensing module, the ambient light sensing module being located beneath the display, wherein the ambient light sensing module comprises a first sensor, a second sensor, and a third sensor;
a first display polarizer located above the display;
a first sensor polarizer located over the first sensor, wherein the first sensor polarizer is a first sensor circular polarizer;
a second sensor polarizer located above the second sensor, wherein the second sensor polarizer has an opposite handedness to the first sensor polarizer; and
a third sensor polarizer located over the third sensor, wherein the third sensor polarizer is a third circular polarizer with an opposite handedness to the second sensor polarizer,
wherein the first sensor, the second sensor, and the third sensor each comprise a set of sub-sensors configured to detect light from different parts of the spectrum.