Housing for backlight module and backlight module

The present invention relates to a backlight module with a housing, for accommodating a light source unit having at least one lug on the light guide plate perpendicular to the peripheral edge of the light source unit, and a plurality of optical films, comprising: a base frame ; and at least one frame positioned on the periphery of the bottom frame section perpendicular to the light source, which has a frame relative to the accommodating groove may be lugs at the ledge to the light guide plate and the groove adjacent to the light source side of the unit has a varying gap width. Meanwhile, the invention discloses a backlight using the backlight module of the module housing.