Light-emitting diode backlight module
US7339491B2 · kind B2 · utility
1Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2006 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Aug 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133609
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An LED backlight module includes a substrate. An LED array, composed of a plurality of red, blue and green lamp LEDs, is mounted on the substrate. A light-mixing chamber is mounted on the substrate and is used to seal the LED array inside. A diffusion sheet is secured inside the light-mixing chamber and is disposed parallel to the substrate. A first prism sheet is secured inside the light-mixing chamber and is disposed parallel to the diffusion sheet. A second prism sheet is secured inside the light-mixing chamber and is disposed parallel to the first prism sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.