US 12,085,441 B2
Method for detecting intensity of ambient light, and electronic device
Quan Peng, Shenzhen (CN); and Shun Li, Shenzhen (CN)
Assigned to SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed by SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed on Dec. 12, 2022, as Appl. No. 18/064,484.
Application 18/064,484 is a continuation of application No. PCT/CN2022/088559, filed on Apr. 22, 2022.
Prior Publication US 2023/0341258 A1, Oct. 26, 2023
Int. Cl. G01J 1/42 (2006.01); G01J 1/44 (2006.01); G09G 3/20 (2006.01)
CPC G01J 1/4204 (2013.01) [G01J 1/44 (2013.01); G09G 3/2074 (2013.01); G01J 2001/444 (2013.01); G09G 2300/0452 (2013.01); G09G 2320/041 (2013.01); G09G 2360/144 (2013.01); G09G 2360/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for detecting an intensity of ambient light applicable to an ambient light sensor, the ambient light sensor being provided below a display screen, the detection method comprising:
sensing a light intensity of incident light, wherein the incident light comprises ambient light passed through the display screen and light leaked from the display screen;
obtaining an estimated light intensity of the light leaked from the display screen based on display data of a target region of the display screen, wherein the target region is a region of the display screen corresponding to the ambient light sensor;
computing an actual light intensity of the light leaked from the display screen based on the estimated light intensity and a temperature compensation coefficient corresponding to a current temperature of the display screen, wherein the temperature compensation coefficient is indicative of a degree of influence of the current temperature of the display screen on a luminous intensity of the display screen; and
obtaining a light intensity of the ambient light passed through the display screen based on the actual light intensity of the incident light and the light intensity of the light leaked from the display screen.