Patent ID: 11860402
Assignee: JAPAN DISPLAY INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F  G

Claim 0:
1. An illumination device comprising:
a plurality of light guides; and
a plurality of laser light source elements, wherein
the plurality of light guides include a plurality of light guide pairs,
each of the plurality of light guide pairs includes a first light guide and a second light guide provided to overlap the first light guide,
the plurality of light guide pairs are connected with their long sides opposed to each other,
the plurality of laser light source elements include a plurality of first light source elements arranged to be opposed to a first side surface on a short side of the first light guide of the light guide pair, and a plurality of second light source elements arranged to be opposed to a second side surface on a side opposite to the first side surface of the second light guide of the light guide pair,
the plurality of light guide pairs include a first light guide pair and a second light guide pair adjacent to each other,
each of the second light guide of the first light guide pair, and the second light guide of the second light guide pair has a first main surface and a second main surface on a side opposite to the first main surface,
a first end portion of the first main surface of the second light guide of the first light guide pair is in contact with a first end portion of the first main surface of the second light guide of the second light guide pair, and
a second end portion of the second main surface of the second light guide of the first light guide pair is separated from a second end portion of the second main surface of the second light guide of the second light guide pair.