Optical member, lighting device for display device, display device and television receiver

An optical member comprising:

• a plurality of convex lenses;
• a lens sheet including said plurality of convex lenses on a surface thereof;
• a light diffusing sheet disposed so as to face said lens sheet and configured to diffuse light;
• and
• a light reflecting member provided between said lens sheet and said light diffusing sheet, and selectively disposed to correspond to boundary areas of the plurality of convex lenses, wherein:
• said plurality of convex lenses have anisotropy to collect light such that the surface of said lens sheet has a light guiding direction and a non-light-guiding direction that crosses the light guiding direction;
• said light diffusing sheet is configured to have diffuseness larger in the light guiding direction of said lens sheet than in the non-light-guiding direction of said lens sheet;
• the plurality of convex lenses are convex cylindrical lenses;
• said lens sheet is configured to included the convex cylindrical lenses arranged in parallel;
• and
• said light diffusing sheet is configured to have the diffuseness larger in a parallel direction of the convex cylindrical lenses than in a longitudinal direction of the convex cylindrical lenses.