Lighting device, display device, and television receiving device

An illumination device, comprising:

• a light source;
• a chassis that stores the light source;
• a circuit board attached to the chassis;
• and
• a substrate cover attached to the chassis and disposed so as to cover the circuit board,
• wherein the substrate cover and the chassis are made of a conductive material,
• wherein the substrate cover has an attaching part attached to the chassis, and a plurality of contact pieces extending towards the chassis and in contact therewith,
• wherein the plurality of contact pieces have a plate shape and are in contact with the chassis while warping in a plate thickness direction, and
• wherein, where contact pieces disposed in a position relatively far from the attaching part of the substrate cover are first contact pieces among the plurality of contact pieces, and where contact pieces disposed relatively close to the attaching part of the substrate cover are second contact pieces among the plurality of contact pieces, the first contact pieces are more susceptible to warping in the plate thickness direction thereof than the second contact pieces.