Light guide plates and backlight module
US8047698B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 31, 2009 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Jun 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0058
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide plate includes a light discharge surface, a light diffusing surface, a light incident surface, and a plurality of scattering dots. The light diffusing surface is located opposite to the light discharge surface. The light diffusing surface has a first part and a second part. The first part is adjacent to a light source. The light incident surface intersects with the light discharge surface and the light diffusing surface. The scattering dots within the first part are arranged in the form of a plurality of concentric arcs, and the scattering dots within the second part are arranged in the form of a plurality of lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.