Backlight module and display device

The utility model relates to a backlight module which comprises a plurality of light-emitting units, a plurality of collimating lens units and a directional diffusion film, the orthographic projection of the collimating lens units on a second substrate covers the orthographic projection of the light-emitting units on the second substrate, and the collimating lens units are adopted to carry out unidirectional collimation on the light-emitting units. By reasonably regulating and controlling the size proportion of the light-emitting unit and the collimating lens unit and the light receiving range of the collimating lens unit, the brightness gain of backlight can be 7-9 times while small-angle light-emitting light beams are adopted, the application requirement for large-view-field light field display is met, and power consumption of a display device is basically not increased. The utility model further provides a display device comprising the backlight module.