There is provided an illumination device equipped with a light guide plate having a light emission face and a light incident face, a printed substrate having a first plane and a second plane opposite to the first plane, a plurality of point like light sources for supplying light to the light guide plate, a housing disposed at a opposite side of the light emission face of the light guide plate, and a light source holding member for holding the printed substrate. The light source holding member has a bend portion, and a edge of the bend portion is inserted in between the light guide plate and the housing.