Electronic device and ambient light sensing method thereof
US11436997B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 24, 2020 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Dec 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic device includes an OLED display having a plurality of pixels and an ambient light sensor disposed under a first pixel of the plurality of pixels. In a first sensing interval, the ambient light sensor generates a first sensing value. The first sensing interval includes a first period and a second period. The first pixel has a first brightness in the first period and has a second brightness the second period. In a second sensing interval, which has the same time length as the first sensing interval, the ambient light sensor generates a second sensing value. The first pixel has the second brightness in the second sensing interval. The first pixel has an identical hue in the first sensing interval and the second sensing interval. The ambient light sensor acquires an ambient light intensity according to the first sensing value and the second sensing value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.