Back light module and display device using the same

A back light module including a bezel, a light-source assembly and a first circuit board is provided. The bezel has a carrier surface, a first back surface and a through hole. The carrier surface and the first back surface are opposite to each other and the through hole is connected between the carrier surface and the first back surface. The light-source assembly is disposed on the carrier surface and the first circuit board is disposed on the first back surface of the bezel. The light-source assembly includes a second circuit board and a plurality of light emitting elements disposed thereon and electrically connected thereto. The second circuit board is electrically connected to the first circuit board by the connective pins thereof passing through the through hole. Since the light-source assembly and the first circuit board are electrically connected to each other by the connective pins passing through the through hole, the assembling process may be simplified and the cost can be decreased. A display device