A backlight module includes a back plate including a back plate body and a first bending structure perpendicular to the back plate body. The backlight module includes a light source. On a side at which the light source is disposed, the back plate further includes a second bending structure connected to the first bending structure and extending in the same direction as the back plate body. The second bending structure includes a plurality of spaced protrusion portions, and a depressed portion between the adjacent protrusion portions configured to accommodate a light emitting portion of the light source.