Light bar, backlight module and display device

The utility model relates to the technical field of display equipment, and discloses a light bar, a backlight module and a display device.The light bar comprises a printed circuit board, a light guide plate, a light guide plate and a light guide plate, the multiple light sources are arranged on one side of the printed circuit board and connected with the metal wiring layer, and the multiple light sources are arranged at intervals in the extending direction of the printed circuit board; the supporting column is located between the two adjacent light sources, the supporting column comprises a base plate, a bridge structure and a supporting body, one side of the base plate is bonded to the printed circuit board so that the supporting column can be of a surface-mounted structure, the bridge structure is located on the side, away from the printed circuit board, of the base plate, and the supporting body is located on the side, away from the base plate, of the bridge structure. According to the light bar, the labor cost and the material cost can be saved, and the production efficiency of the backlight module can be improved.