Patent ID: 8184238

Claim:
A planar illumination device, comprising: a laser light source for emitting laser light; a light source side bundle fiber having one end surface thereof optically connected with the laser light source; a flat light guide plate; a plurality of connection side fibers planarly arranged in parallel with each other at a side surface of the light guide plate; and a light guiding member for guiding the laser light from the light source side bundle fiber to the plurality of connection side fibers, wherein: the laser light is incident on the side surface of the light guide plate from the plurality of connection side fibers and output light is uniformly emitted from one principal surface of the light guide plate; the laser light source includes at least a red laser light source, a green laser light source and a blue laser light source; the red, green and blue laser light sources emit laser lights to be incident on the one end surface of the light source side bundle fiber; the light source side bundle fiber includes a plurality of optical fibers; and the plurality of optical fibers are axially symmetrically bundled for the respective colors.