Ambient light detection method and apparatus, and storage medium
US11076041B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 2020 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | May 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An ambient light detection method includes: in response to monitoring that a current backlight level of a display screen exceeds a preset backlight level threshold, acquiring an image grayscale value sent by a driving portion in the display screen; compensating a first gray level value collected by a light sensor by using the image grayscale value to obtain a current gray level value, the current gray level value being configured to represent a gray level corresponding to current external ambient light detected by the light sensor; and acquiring illumination intensity of the current external ambient light based on the current gray level value, the illumination intensity being used as a basis for adjusting backlight brightness of the display screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.