Backlight module having a light scattering unit for scattering light entering the light guide plate and display device having the same
US9423550B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jul 31, 2014 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Sep 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0088
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a backlight module and a display device. The present invention can solve the problem that a hot spot in a marginal portion of a light guide plate results in non-uniform brightness of emitted light from a backlight module. The backlight module comprises a light guide plate and a plurality of light sources, the light guide plate comprising a light incident surface, the plurality of light sources being arranged opposite to the light incident surface of the light guide plate. The backlight module further comprises a light scattering unit arranged between the plurality of light sources and the light incident surface of the light guide plate, and the light scattering unit is used for scattering and irradiating light rays from the plurality of light sources to the light guide plate. The display device of the present invention comprises the backlight module as described above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.