Backlight module and display apparatus
US11842701B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2023 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Jun 4, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0686
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A backlight module and a display apparatus are disclosed. The backlight module includes a back plate, one or more light bars, a dimming diaphragm, and a driving assembly; the back plate includes a bottom plate; the one or more light bars are arranged on one side of the bottom plate. Each light bar includes multiple first light-emitting units and multiple second light-emitting units; the multiple first light-emitting units are configured to generate diffuse light. The multiple second light-emitting units are configured to generate collimated light; the dimming diaphragm is arranged on a side of the one or more light bars away from the bottom plate, and has a diffusion mode and a transparent mode. The driving assembly is arranged between the bottom plate and the circuit board, connected to the circuit board, and configured to drive the light bar to rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.