Backlight module and display device
US10690841B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 9, 2019 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | May 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0081
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to the field of display technology, and provides a backlight module including a light guide plate, a diffusion assembly and a light source assembly. The light guide plate is provided with a hole thereon. The diffusion assembly is disposed over the light guide plate. The light source assembly has a light emitting portion. The light emitting portion is disposed within the hole, and includes a COB light source with an out-light surface facing towards the diffusion assembly and a LED light source with an out-light surface facing towards a hole wall of the hole. A transmittance at a position of the diffusion assembly opposite to the COB source light is smaller than a transmittance at a remaining position thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.