Display backlight
US9958601B2 · kind B2 · utility
1Cited by
7References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2014 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Dec 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A display backlight can include a light source and a parabolic waveguide. The parabolic waveguide can have a light inlet to receive the light from the light source, a parabolic reflective surface adapted to change a direction of the light emitted from the light source by a predetermined angle, and a light outlet configured to emit the light at the predetermined angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.