Patent ID: 8899771

Claim:
An illumination device, comprising: a chassis having a plate-shaped portion and side plates that rise up from edges of the plate-shaped portion on one surface thereof; a plurality of light source substrates disposed on the one surface of the plate-shaped portion; a plurality of light sources disposed on the light source substrates, the light sources outputting light in a direction of light output; a plurality of diffusion lenses respectively covering the plurality of light sources to diffuse light from the light sources; a reflective sheet disposed on the one surface of the plate-shaped portion and the light source substrates, the reflective sheet having light source insertion holes that correspond in position to the light sources to insert the light sources therethrough; and a flat spring member over the reflective sheet, the flat spring member generally protruding outward from a plane defined by the reflective sheet and having a pair of ends that oppose each other, one of the ends being held by the reflective sheet and one of the plurality of diffusion lenses, another end of the flat spring member being held by the reflective sheet and another of the diffusion lenses so that the ends of the flat spring member are respectively in contact with said one and another diffusion lenses and the reflective sheet to secure the reflective sheet onto the light source substrates, the flat spring member being reflective.