Backlight module and display device including privacy-protection display mode
US12124132B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2022 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Apr 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/29
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight module and a display device are provided. The backlight module includes a first light-emitting component and a second light-emitting component. The first light-emitting component includes a regular light guide plate, and an angle between a light emitted by the first light-emitting component and a first direction is less than or equal to a first preset angle, and the first direction is perpendicular to the first direction. The second light-emitting component includes a collimated light guide plate, an angle between a light emitted by the second light-emitting component and the first direction is less than or equal to a second preset angle, and the second preset angle is less than the first preset angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.