Light guide plates and backlight module
US8057056B2 · kind B2 · utility
22Cited by
14References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 16, 2009 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Mar 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133603
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide plate includes a body having a bottom surface and a light output surface opposite to the bottom surface. A scattering structure is formed on the bottom surface. The scattering structure includes a plurality of scattering dots located in the form of a plurality of concentric shapes about the center. A backlight module using the light guide plate is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.