Backlight module and liquid crystal display device using same

A liquid crystal display device, comprising:

• a backlight module, a mold frame arranged on the backlight module, and a liquid crystal display panel arranged on the mold frame, the backlight module comprising:
• a backplane, a backlight source arranged in the backplane, a light guide plate arranged in the backplane, and a reflector plate arranged between the backplane and the light guide plate, the backplane comprising a bottom plate and a plurality of side plates perpendicularly connected to the bottom plate, the bottom plate having a surface forming a recess that faces the light guide plate and has an arc curved surface, the reflector plate being positioned on the arc curved surface and having opposite ends supporting the light guide plate and a middle portion between the ends and showing an arc curved configuration;
• wherein the light guide plate comprises a bottom surface facing the bottom plate, a top surface opposite to the bottom surface, and a plurality of side surfaces between the bottom surface and the top surface, the plurality of side surfaces comprising at least a light incidence surface, the backlight source being mounted to the side plates and beside the light incidence surface;
• and
• wherein the backlight module further comprises an optical film assembly arranged above the light guide plate.