公开(公告)号：US12217663B2

公开(公告)日：2025-02-04

申请号：US17598145

申请日：2020-02-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jicun Fan ,  Li Kang ,  Wei Wang ,  Haowei Jiang ,  Ying Li

IPC: G09G3/3208 ,  H04M1/02

Abstract: A light sensor status control method, includes: a processor (110) determines a display time period and a non-light-emitting time period in a image refresh cycle (501); and the processor (110) controls an optical transmitter of a light sensor (180G) to transmit an optical signal when pixels in a display area that is of an OLED display screen (194) and that corresponds to the light sensor do not emit light in the image refresh cycle, and the processor (110) controls the optical transmitter not to transmit an optical signal when the pixels in the display area that is of the OLED display screen (194) and that corresponds to the light sensor (180G) emits light (502). Therefore, a problem that the screen blinks because the light sensor emits infrared light is alleviated, and a display effect of the screen is improved.

公开(公告)号：US20220342074A1

公开(公告)日：2022-10-27

申请号：US17642429

申请日：2020-09-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ping Han ,  Haowei Jiang ,  Li Kang

IPC: G01S17/894 ,  G01S17/10 ,  H04N5/58 ,  G01J1/42

Abstract: An electronic device includes a time of flight (ToF) sensor, a proximity sensor, and an ambient light sensor. The ToF sensor, the proximity sensor, and the ambient light sensor are located on a same side of the electronic device. When the ToF sensor is turned on, a light sensor (for example, the proximity sensor and/or the ambient light sensor) may be controlled to be turned off, and when the ToF sensor is turned off, the light sensor may be controlled to be turned on. Alternatively, when the ToF sensor is turned on, data measured by a light sensor is discarded, and when the ToF sensor is turned off, a corresponding function is implemented based on data measured by the light sensor.