Surface light source assembly having light guide with groove structures for out-coupling light, and backlight module having the surface light source assembly
US10386565B2 · kind B2 · utility
1Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2018 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Jan 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight module includes a plurality of surface light source assembly. Each surface light source assembly includes a light source with a plurality of light emitting surfaces having a light emission angle range each; a light guide plate with a bottom surface having a groove for receiving the light source, a light exit surface opposite to the bottom surface, and at least one side surface between the bottom surface and the light exit surface; and a plurality of groove structures configured to reflect a portion of a light emitted from the light emitting surfaces to outside their light emission angle range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.