Display device

A display device comprising:

• a light guide plate that has an incident end surface, a reflection surface, and an emission surface, propagates light incident from the incident end surface, reflects the light with a prism provided on the reflection surface, and causes the light to emit from the emission surface facing the reflection surface;
• a light source that causes the light to be incident on the incident end surface of the light guide plate;
• and
• a concealing plate that includes:
• a light transmitter that is disposed on a side of the emission surface of the light guide plate and transmits the light emitted from the emission surface of the light guide plate, and
• a light shielding portion having a light transmittance lower than a light transmittance of the light transmitter,
• wherein the light guide plate has an inclined surface group formed by a plurality of inclined surfaces on a side end surface excluding the incident end surface of the light guide plate and a facing end surface facing the incident end surface,
• wherein a line segment connecting a center of sides of the plurality of inclined surfaces and a center of the light source, and the sides of the inclined surfaces are substantially perpendicular and
• wherein each of the sides of the plurality of inclined surfaces form a different angle with respect to a line segment extending through the center of the light guide plate.