An embodiment of the present invention discloses a backlight module and a display device. The backlight module includes a circuit board. A side surface of the circuit board is provided with a plurality of light emitting elements spaced apart from each other. A light output surface of at least one of the light emitting elements is covered with a first encapsulation layer. A side surface of the first encapsulation layer away from the at least one light emitting elements is a curved surface.