Abstract: A backlight module includes a back housing, a top housing, a lamp, a light-guide plate, and a reflecting sheet. The back housing includes a bottom plate. The back housing and top housing form an accommodating space; the lamp is situated in the accommodating space. The light-guide plate is disposed on the bottom plate and has a lateral light-inputting surface and a bottom surface. Light emitted from the lamp enters the light-guide plate through the lateral light-inputting surface. The reflecting sheet is disposed between the light-guide plate and the bottom plate. The reflecting sheet includes a curved portion to enable the light-guide plate and the reflecting sheet to be combined conformingly.