Light source assembly and backlight module

The invention discloses a light source assembly and a backlight module, and belongs to the technical field of light emitting display, the light source assembly comprises a light bar and a flexible circuit board, and the flexible circuit board is bound and electrically connected with the light bar in a non-light-source area of the light source assembly; the light bar comprises a first substrate and a first circuit layer, the light bar in the light source area comprises a plurality of light sources, and the flexible circuit board comprises a second substrate and a second circuit layer; in the non-light source area, the first substrate comprises a first hollow part which at least penetrates through the thickness of the first substrate and exposes the first circuit layer, the second substrate comprises a second hollow part which at least penetrates through the thickness of the second substrate and exposes the second circuit layer, and the first hollow part comprises a first edge close to the light source area; th