Backlight module without light guiding plate and diffusing plate
US7267451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2005 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Oct 12, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133615
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight module without a light guiding plate and a diffusing plate is disclosed, in which a reflective layer having a light scattering structure is first disposed on a backplate and then at least a reflective mirror is provided on the reflective layer of the backplate. Further, a transparent plate is disposed on the at least reflective mirror. The backplate, the at least a reflective mirror, the reflective layer and the transparent plate form an enclosed space and thus the backlight module without a light guiding plate and a diffusing plate is completed. In another form of the backlight module without a light guiding plate and a diffusing plate, the light scattered structure is formed directly on the backplate. When a light-emitting unit emits a light source, the light source is uniformly given off through the light scattering structure, promoting use efficiency of the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.