Patent ID: 8789959

Claim:
A lighting device comprising: a chassis including a bottom plate and side plates, the bottom plate having peripheral end portions, and the side plates that rise from the peripheral end portions toward a first main surface side of the bottom plate, the chassis having an opening on the first main surface side; a plurality of light sources arranged on the first main surface side of the bottom plate of the chassis in a matrix, the light sources configured to emit light toward an opening side of the chassis; and a reflection member having side wall portions and a plurality of through holes through which the respective light sources are passed, the side wall portions surrounding each of the light sources, each of the side wall portions having an inclined surface on a side surface thereof, the inclined surface being inclined from a surface on which the light sources are mounted toward the opening side of the chassis, and the inclined surface configured to direct light from the light sources toward the opening side of the chassis, and the side wall portions being located between the light sources that are adjacently positioned in a diagonal direction having a height greater than a height of the side wall portions located between the light sources that are adjacently positioned in a vertical direction or in a horizontal direction with a plan view.