Compact lighting system and display device
US7572045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2003 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Jan 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A compact backlight system has a light-emitting panel (1) with a front wall (2), a rear wall (3) situated opposite thereto, a first edge surface (4) and, opposite thereto, a second edge surface (5) . A first light source (6) is associated with the first edge surface (4) which is light-transmitting. The light-emitting panel (1) widens over a widening section (100) from the first edge surface (4) in a direction towards the second edge surface (5), and the rear wall (3) is provided over the widening section (100) with a multiplicity of steps (13, 13′, . . . ) each having a surface (17) facing the front wall (2) which is substantially parallel to the front wall (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.