Terminal and method for detecting luminance of ambient light
US10520359B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2015 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Sep 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A terminal and a method for detecting luminance of ambient light, where the terminal includes a processor, an ambient light sensor, and a screen. The ambient light sensor and the screen are both coupled to the processor. A light-sensitive element of the ambient light sensor faces the screen and is located on a lower surface of the screen. After the screen is lit up, the processor adjusts first luminance of the screen to a value below a first threshold within a visual persistence time of human eyes. The ambient light sensor detects luminance of first ambient light of the terminal within the visual persistence time of human eyes. The terminal may eliminate non-ambient light that enters the ambient light sensor such that the ambient light sensor may detect luminance of relatively real ambient light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.