Terminal device with ambient light detection function and ambient light detection method
US12117338B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2022 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | May 20, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A terminal device with an ambient light detection function and an ambient light detection method are provided. The terminal device includes at least two photosensitive units arranged at a short distance, and the at least two photosensitive units are located in a slit area formed by a middle frame and a side wall of a display screen. Transparent black ink and opaque ink are respectively deployed in vertical projection areas of photosensitive areas of the at least two photosensitive units on cover glass, resulting in asymmetry in external ambient light energy sensed by the at least two photosensitive units. A processor performs differential calculation based on light energy sensed by the two photosensitive units by using a particular method, removes the impact of the light leakage generated by the display screen, and obtains brightness of peripheral real ambient light, to adjust brightness of the display screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.