Light guide plate having periodic microstructure configured on light emission surface and a light waveguide layer configured within transmission layer and backlight module having a collimation structure configured with a plurality of collimation-layer units and a plurality of collimation-optical-lens units to collimate light beams emitted from the light emission surface of the light guide plate
US10359557B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 2017 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Aug 21, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a light guide plate and a backlight module thereof, wherein the light guide plate includes: a light incident surface, a transmission layer, and a light emission surface. Wherein a light waveguide layer is configured within the transmission layer to change a transmission direction of at least a portion of light beams entered from the light incident surface along a direction perpendicular to the light emission surface. At least one periodic microstructure is configured on the light emission surface. The present disclosure may improve convergence characteristics of the light beams entered the light guide plate and may reduce the crosstalk between areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.