Quantum rod backlight module set

The invention relates to a quantum rod backlight module set for a liquid crystal display. The quantum rod backlight module set comprises a back light source, a quantum rod layer arranged on one side of the back light source and containing a plurality of quantum rods with long axles arrayed in a direction, a first prism layer containing a plurality of first prisms arrayed in a parallel way and arranged on a light-emitting side of the quantum rod layer, and a second prism layer containing a plurality of second prisms arrayed in a parallel way and laminated on one side of the first prism layer, wherein the arraying direction of the plurality of first prisms and the arraying direction of the plurality of second prisms are both perpendicular to the long axle direction of the plurality of quantum rods; phase difference of the first prism layer and phase difference of the second prism layer are both zero; and polarization of light rays generated by the quantum rod layer cannot be damaged, so great brightening effect can be achieved for the liquid crystal display.