Backlight module and its light guide plate module
US8534899B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2011 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Oct 10, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a backlight module and its light guide plate module. The light guide plate module comprises a plurality of adjacently arranged light guide plates, each of the light guide plates includes a light emitting surface and at least one light entrance surface, and the light emitting surfaces of the light guide plates are on a same plane. The present invention employs the arrangement of a plurality of modular light guide plates to achieve a large light emitting area. Each of the light guide plates corresponds to an independently controlled light emitting module, respectively, so that the side-light type backlight module can realize local dimming function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.