A backlight module includes a transparent substrate, a plurality of light sources on a surface of the transparent substrate, a reflective sheet on a side of the transparent substrate adjacent to the plurality of light sources, and at least one supporting member between the transparent substrate and the reflective sheet. The light sources are configured for emitting light. The reflective sheet is configured for reflecting light toward the transparent substrate. The at least one supporting member is configured for separating the plurality of light sources from the reflective sheet.