Lighting device, display device and television receiver

A lighting device, comprising:

• a light source;
• a chassis including a bottom plate provided on a side opposite to a light exit side with respect to the light source, the chassis housing the light source;
• and
• a reflection member configured to reflect light and including a quadrangular bottom portion and at least two raised portions, the quadrangular bottom portion arranged along the bottom plate, and each of the at least two raised portions being raised from at least two adjacent sides of the quadrangular bottom portion respectively toward the light exit side, the at least two raised portions extend continuously along entire lengths of the at least two adjacent sides of the quadrangular bottom portion and the at least two raised portions define a joint between two adjacent raised portions, wherein:
• the at least two raised portions include one raised portion and another raised portion, and the one raised portion bulges toward the light output side to define an arched shape which is arched in only a single direction;
• further comprising an optical member provided on an optical member provided on a side closer to the light exit side with respect to the light source, wherein:
• at least the one raised portion includes an extending portion at a distal end thereof and the extending portion extends outwardly;
• and the chassis includes a receiving plate configured to sandwich the extending portion with the optical member, wherein the other raised portion bulges toward the light exit side together with the one raised portion to define an arched shape.