Direct type backlight module and liquid crystal display device having same
US9477114B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 2013 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Oct 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133614
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A direct type backlight module includes an optical film unit and a light emitting unit. The light emitting unit includes a laser sources, transreflective components, reflective components, and phosphors. Each laser source corresponds to a number of the transreflective components and one of the reflective components arranged at an optical path of a laser beam emitted from the laser source in sequence. The transreflective component transmits part of the irradiated laser beam and reflects the other part of the laser beam. The reflective component reflects the irradiated laser beam. The phosphors correspond to the transreflective components and the reflective components one-to-one and emit out white light when irradiated by the laser beam reflected by the transreflective components and the reflective components. The white light transmits through the optical film unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.