Backlight module including circular and cylinder fresnel lenses

A backlight module, comprising:

• a carrier plate;
• a plurality of light sources;
• a plurality of circular Fresnel lenses, wherein the plurality of circular Fresnel lenses are arranged in an array form on the carrier plate;
• and
• a plurality of cylindrical Fresnel lenses that are parallel to each other;
• wherein each of the plurality of light sources correspond with each of the plurality of circular Fresnel lenses, wherein each of the plurality of light sources are positioned away from both the circular Fresnel lenses and the carrier plate;
• one cylindrical Fresnel lens is set between every two adjacent circular Fresnel lenses;
• a length direction of each cylindrical Fresnel lens is parallel to an extending direction of adjacent column of the circular Fresnel lens;
• the plurality of circular and cylindrical Fresnel lenses arranged to reflect light incident into surfaces of the plurality of circular and cylindrical Fresnel lenses, and to increase an emission angle of the reflected light.