Backlight module and display device

The invention discloses a backlight module and a display device, and relates to the technical field of display. In order to solve the problems that in the prior art, when a collimation light source isused as a backlight source, due to the fact that only collimation backlight can be provided for the display device through the bottom lighting type structure, the thickness of a display device is large, and the development requirement for thinning of the display device is not met, and the backlight module comprises a light guiding portion and a first collimation light source arranged on the firstlight incident face of the light guiding portion, wherein the light guiding portion comprises a first light splitting structure, the first light splitting structure can split light emitted by the first collimation light source into transmission light through the first light splitting structure and second emission light emitting from the first light emitting face of the light guiding portion, andthe first light emitting fa