Light guide plate with v-shaped grooves and backlight module incorporating same
US7156548B2 · kind B2 · utility
33Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2005 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Jun 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide plate (10) of a preferred embodiment includes: an incident surface (12) for receiving incident light beams from a corresponding light source; an emitting surface (16); and a bottom surface (11) opposite to the emitting surface. The bottom surface defines a plurality of V-shaped grooves. A side (17) of each V-shaped groove is a curved surface, and at least one part of the curved surface is wave-shaped. The light guide plate can improve the utilization of light beams, reduce wastage of light beams and configure the uniformity of luminance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.