Backlight module
US7380971B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 9, 2006 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Sep 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight module includes a light guide plate having an incident surface, an emitting surface adjacent to the incident surface, and a reflective surface opposite to the emitting surface. At least one light source is disposed adjacent the incident surface. The light source has a luminescent surface; and at least one reflecting device is disposed adjacent the light source. The reflecting device has a reflective surface facing the incident surface. At least one semi-transmissive and semi-reflective film disposed on the incident surface of the light guide plate. The semi-transmissive and semi-reflective film and the reflecting device together are disposed for cooperatively reflecting some (i.e., a fraction) of the light beams emitted from the light source and redirecting the fraction of the light beams into the light guide plate through the incident surface, distant from the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.