A display device and an electronic device are provided. The display device includes a backlight module and a display panel which are stacked. The backlight module includes a back plate, at least one near-infrared light-emitting element, and at least one diffuser. The back plate includes a bottom plate and multiple side plates. The multiple side plates encircle and are connected to the bottom plate to form a receiving space. The at least one near-infrared light-emitting element is disposed in the receiving space. Each of the at least one near-infrared light-emitting element is disposed corresponding to one side plate. The near-infrared light-emitting element is inclined relative to the display panel, and configured to emit near-infrared light that can heat the skin of a user. The diffuser is disposed corresponding to a light-exiting surface of the near-infrared light-emitting element and configured to diffuse the near-infrared light emitted by the near-infrared light-emitting element.