Provided is a liquid crystal display device. The liquid crystal display device includes a guide frame, a plurality of light sources disposed on the guide frame, a diffusion member disposed above the plurality of light sources as being spaced away from the plurality of light sources, and a plurality of wires disposed between the plurality of light sources and the diffusion member. The liquid crystal display device according to an exemplary embodiment of the present disclosure uses the diffusion member having a smaller thickness than a related art diffusion plate. Thus, it is possible to reduce the overall thickness of the liquid crystal display device. Further, it is possible to support the diffusion member with the plurality of wires.