US 12,188,814 B2
Method and apparatus for detecting ambient light under display screen, and electronic device
Mingsong Wei, Guangdong (CN); Xiangyu Yang, Guangdong (CN); and Luming Zhou, Guangdong (CN)
Assigned to SHENZHEN GOODIX TECHNOLOGY CO., LTD., Guangdong (CN)
Filed by SHENZHEN GOODIX TECHNOLOGY CO., LTD., Guangdong (CN)
Filed on Dec. 12, 2022, as Appl. No. 18/079,365.
Prior Publication US 2023/0204413 A1, Jun. 29, 2023
Int. Cl. G01J 1/42 (2006.01)
CPC G01J 1/4204 (2013.01) 17 Claims
OG exemplary drawing
 
1. A method for detecting ambient light under a display screen, wherein the method comprises:
generating an interval identification signal for screen light of the display screen according to a dimming period of the display screen, the interval identification signal being used to identify the screen light that is within a specific time interval in the dimming period;
performing data collection according to a sampling signal;
reading data of a target sampling period from data of a plurality of sampling periods of the sampling signal according to the interval identification signal, the target sampling period being a sampling period in which sampling time overlaps with the specific time interval in time; and
detecting the ambient light according to the data of the target sampling period;
wherein brightness of the screen light comprises a plurality of brightness levels, the plurality of brightness levels correspond to a plurality of interval identification signals, respectively, and the generating the interval identification signal for the screen light of the display screen, comprises:
generating the interval identification signal corresponding to a current brightness level of the display screen.