Backlight device, transport device including backlight device, and control method thereof
US12300188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2023 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Jun 15, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2380/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A backlight device to provide a light source is provided. The backlight device includes a switching element, a graphics processor, and a graphics generator. The graphics processor is electrically connected to the switching element, and generates a partition data signal. The graphics generator is electrically connected to the switching element, and generates an image signal. When the backlight device operates in a normal mode, the switching element receives the partition data signal, so that different blocks of the backlight device have different levels of brightness. When the backlight device operates in a safe mode, the switching element receives the image signal, so that different blocks of the backlight device have the same level of brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.