Backlight unit and display apparatus having the same
US9377572B2 · kind B2 · utility
2Cited by
17References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Jun 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight unit includes a light source which emits a first light, a light guide bar extending in a first direction, where the light guide bar receives the first light through an incident surface thereof, and guides the first light to convert the first light to a second light, and a control pattern disposed on a surface of the light guide bar, which extends in the first direction, where the control pattern converts the second light to a third light, and has a shape extending in the first direction to control an exit angle of the third light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.