Display device and game machine

A game machine comprising:

• a game machine main body;
• and
• a display device provided on a surface on a side opposed to a player on the game machine main body, wherein
• the display device comprises:
• a light guide plate formed in a sheet shape with a transparent member, the light guide plate being configured to display at least one pattern and comprising an incident surface formed on one of side surfaces;
• and
• a plurality of light sources opposed to the incident surface, the plurality of light sources being arranged along a longitudinal direction of the incident surface,
• the light guide plate comprises, on a surface on one side of the light guide plate, a plurality of prisms arranged in the pattern and comprising a reflective surface configured to reflect light emitted from any of the plurality of light sources and incident into the light guide plate from the incident surface, to be emitted from an outgoing surface on another side of the light guide plate, and
• the plurality of prisms are formed with a mutual difference between a first curvature of the surface on one side of the reflective surface, the first curvature being of a first prism arranged along a first sub-pattern included in the pattern among the plurality of prisms, and a second curvature along the surface on the one side, the second curvature being of a second prism arranged along a second sub-pattern that is included in the pattern and is different from the first sub-pattern, among the plurality of prisms.