Backlight module capable of diffusing and splitting light and display device

The utility model relates to a backlight module capable of diffusing and splitting light and a display device. A backlight module capable of diffusing split light comprises a light guide plate, a light source, an optical film, a first prismatic lens and a second prismatic lens. The light source is adjacent to the light-in surface of the light guide plate, and the optical film is located on the first light-out surface of the light guide plate. The optical film comprises a plurality of parallel prisms, and each prism extends along a long axis intersecting with the light incident surface. The prisms are located on one side of the optical film, and the other side of the optical film is further provided with a second light-emitting face. The first prism sheet is overlapped on the second light emitting surface, and the second prism sheet is overlapped on the first prism sheet. 本实用新型涉及可扩散分光的背光模组及显示装置。一种可扩散分光的背光模组，包括导光板、光源、光学膜片、第一棱镜片与第二棱镜片。光源邻设于导光板的入光面，且光学膜片位于导光板上的第一出光面。此光学膜片包括多条并列的棱柱，而每一条棱柱沿着与入光面相交的长轴延伸。这些棱柱位于光学膜片的一