Light source device, backlight device, and liquid crystal display

Abstract

A light source device 11 includes a plurality of tube-shaped light sources 17 arranged with an interval provided therebetween, so that an axis line L extends in the same direction; and a reflection plate 18 disposed on the backside of each light source 17 viewed from a light extracting direction. The reflection plate 18 includes a flat portion 28 opposed to the light source 17 and a concave shaped portion 27 recessed from the flat portion 28 in a direction spaced from the light source 17, with an opening edge 29 formed in a circular shape or an oval shape. A plurality of concave shaped portions 27 are arranged along at least the axis line L of the light source viewed from the light extracting direction. Light distribution characteristics not dependent on an arrangement direction of the light sources 17 can be obtained.

Dependencies are inferred from the claim text.