Patent ID: 8823282

Claim:
A light source apparatus comprising: a plurality of light emitting substrates arranged in matrix form, each having at least one light source; an intermediate substrate provided between respective rows of the plurality of light emitting substrates; and a driving unit that outputs a drive signal for driving the light sources, wherein a first supply wiring for supplying the drive signal to the light source provided on each of the plurality of light emitting substrates is printed on each of the light emitting substrates, a first connection wiring for electrically connecting the first supply wirings printed on two light emitting substrates sandwiching the intermediate substrate is printed on the intermediate substrate, the drive signal output by the driving unit is input into a first light emitting substrate of the plurality of light emitting substrates, which is a light emitting substrate positioned on one end in a column direction, a path for supplying the drive signal to the light source of the first light emitting substrate is constituted by the first supply wiring printed on the first light emitting substrate, and a path for supplying the drive signal to the light source of a second light emitting substrate of the plurality of light emitting substrates, which is a light emitting substrate other than the first light emitting substrate, is constituted by the first supply wiring printed on the second light emitting substrate, the first supply wiring printed on a light emitting substrate positioned closer to the driving unit than the second light emitting substrate, and the first connection wiring printed on the intermediate substrate provided between the light emitting substrates.