Lighting device, display device and television device

A lighting device comprising:

• a light source board;
• a light source arranged on a first main surface of the light source board;
• a lens configured to diffuse light from the light source, the lens covering the light source from a light exit side;
• a plurality of support members supporting the lens, the support members being arranged on the first main surface of the light source board;
• a reflection sheet having a through hole, the reflection sheet being arranged on the first main surface of the light source board;
• and
• a housing having a bottom plate opposed to a second main surface of the light source board, the housing holding the light source board, the light source, the lens, the supporting members, and the reflection sheet therein, wherein
• the light source and the support members are passed through the through hole of the reflection sheet,
• the reflection sheet includes a projection projecting inward from an edge of the through hole, and
• the projection is held between the support members.