Patent attributes
A backlight module, a display device and an assembling method of a display device are provided. The backlight module includes: a backlight assembly including a back plate and a first transitional frame, wherein the back plate is fixedly connected with the first transitional frame, a light guide plate is provided on the back plate, the light guide plate and the first transitional frame are respectively located on opposite sides of the back plate in a thickness direction of the backlight module; and an outer frame, wherein the outer frame and the light guide plate are provided on the same side of the back plate in the thickness direction of the backlight module, and the outer frame is fixedly connected with the first transitional frame so that the outer frame is fixedly connected with the back plate through the first transitional frame.