Display panel having a backlight source with a dimming function
US12327532B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 18, 2023 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Jul 18, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic device includes a display panel, a backlight source, an ambient light sensor, and a controller. The backlight source is disposed below the display panel and includes light-emitting units. The ambient light sensor detects the brightness of the ambient light. The controller judges the modes of the electronic device according to the detecting results of the ambient light sensor. When the electronic device is in a low-brightness mode, the brightness of a white frame of the display panel is greater than 0 nit and less than or equal to 50 nits, and in a general mode, the brightness of the white frame of the display panel is greater than 50 nits. The backlight source includes a local dimming function. When in the low-brightness mode, the local dimming function is in a first mode. When in the general mode, the local dimming function is in a second mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.