Abstract: The present invention provides a light guide plate and a manufacturing method thereof. The light guide plate includes a light incident surface formed on a lateral side of the light guide plate, a reflection surface formed on a bottom of the light guide plate, and a light exit surface formed on a top of the light guide plate. The light guide plate includes a plurality of voids formed therein at one side close to the reflection surface. Each of the voids contains therein a plurality of high reflectivity particles.

Abstract: The present invention provides a liquid crystal module with edge-lit backlight, which includes aluminum extrusion, edge-lit backlight source, light guiding plate (LGP), optical film set, mold frame, and at least a magnetic device, disposed with at least an attaching surface, for attaching to backlight source substrate, and an outer surface protruding beyond the light-emitting surface of LEDs; the outer surface of magnetic device near or pressing against LGP and having a difference in height levels from light-emitting surface of LEDs. The present invention also discloses a liquid crystal display device adopting the above liquid crystal module with edge-lit backlight. As such, the present invention can prevent the coupling optical distance from being too small, improve the endurance of the impact on the backlight and improve the backlight life span.