Direct-type LED backlight module
US9631802B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2015 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Oct 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133626
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A direct-type LED backlight module includes a back bezel having opposite first and second surfaces, a daughterboard having opposite third and fourth surfaces, LED lightbars disposed on the first surface, and a local dimming control board disposed on the second surface. The first surface has a groove disposed thereon. The second surface has a through hole disposed thereon and communicating with the groove. The daughterboard is disposed in the groove. The third surface has first connectors disposed thereon and protruding out the groove. The fourth surface has a second connector disposed thereon and protruding out the second surface through the through hole. The first and second connectors are electrically connected. Each LED lightbar has a third connector disposed thereon and connected to the corresponding first connector. The local dimming control board has a fourth connector disposed thereon and connected to the second connector. It reduces wiring cost and assembly time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.