Patent ID: 7543970

Claim:
A flat light source comprising: a flat light guide plate having one main surface serving as a light outgoing surface from which light outgoes and the other main surface serving as a reflection surface opposite to said light outgoing surface; and a plurality of point light sources respectively separately provided at least on one side surface of said light guide plate, wherein said one side surface of said light guide plate on which said plurality of point light sources are provided serves as a light incident surface, each of said plurality of point light sources includes a block-like body with a light source stored therein, one surface of said body serving as a light emitting surface at which a light emitting part of said light source is exposed, each of said point light sources at least including a first overhang projecting from one side of said light emitting surface perpendicularly to said light emitting surface, and said first overhang has its main surface made in contact with one of said light outgoing surface and said reflection surface with said plurality of point light sources disposed such that said light emitting surface faces said light incident surface.