Light guide plate and side-edge backlight module using same

摘要

The present invention provides a light guide plate and a backlight module using the light guide plate. The light guide plate has an upper surface forming upper micro-structures and a lower surface forming lower micro-structures. The upper and lower micro-structures are set parallel to propagation direction of the light that emits from a backlight source traveling within the light guide plate. The upper and lower micro-structures each include a plurality of periodically and successively juxtaposed strip-like units. Each of the strip-like units forms a prism. The strip-like units of the upper and lower micro-structures are juxtaposed in the same direction. With the combination and arrangement of the upper micro-structures and lower micro-structures, collimation of light is improved after the light from an LED light source enters the light guide plate so as to improve convergence of the light inside a section.

主权项

1. A light guide plate, comprising an upper surface forming upper micro-structures and a lower surface forming lower micro-structures, the upper and lower micro-structures each comprising a plurality of periodically and successively juxtaposed strip-like units, each of the strip-like units forming a prism so that the prisms are arranged closely side by side and immediately next to each other for both the upper and lower micro-structures, the strip-like units of the upper and lower micro-structures being juxtaposed in the same direction, the prims of the strip-like units of the upper and lower micro-structures extending from one end of the light guide plate to an opposite end in a direction substantially parallel to light propagation within the light guide plate.