Backlight module, display module and electronic device

The invention discloses a backlight module, a display module and an electronic device and belongs to the technical field of display. The backlight module comprises a backlight source and a light guide plate, the backlight source comprises a first light-emitting unit and second light-emitting units, wherein the second light-emitting units are located at one end or both ends of the first light-emitting unit, the first light-emitting unit and the second light-emitting units are located at the light incidence side of the light guide plate, and an included angle which is larger than 180 degrees and smaller than 270 degrees is formed between the light emerging surface of the first light-emitting unit and the light emerging surface of each second light-emitting unit, so that light emitted by the first light-emitting unit and light emitted by the second light-emitting units can be cast to the light incidence surface of the light guide plate and emerges out of the light emerging surface of the light guide plate. By means of the backlight module, the problem that a display module is poor in display effect is solved, the display effect of the display module is improved, and the backlight module is applied to the electronic device.