Backlight module and display device
US10795075B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2019 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Mar 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/102
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Backlight module and display device are provided. The backlight module includes an accommodation frame including a base and an extending part, a first light guide plate, a second light guide plate; a first reflector, a first light source, and a second light source. The first light guide plate and the second light guide plate are disposed sequentially along a direction perpendicular to a plane of the base in an accommodation space formed by the base and the extending part, and are controlled independently. The first light source has a wavelength λ1 of 780 nm<λ1≤1310 nm, and the second light source has a wavelength λ2 of 380 nm≤λ2≤780 nm. A reflectivity of the first reflector on light emitted by the second light source is larger than a reflectivity of the first reflector on light emitted by the first light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.