Backlight unit and display device having the same
US7728923B2 · kind B2 · utility
65Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2006 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Jun 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0055
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight unit and method of use are provided having a first light guide plate, a linear light source disposed along at least one side edge of the first light guide plate, a plurality of second light guide plates facing the first light guide plate, and a point light source disposed along at least one side edge of each second light guide plate. Accordingly, the present invention can provide a backlight unit using both a point light source and a linear light source at substantially the same time, and having superior color reproducibility and low power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.