Light guide plate, display device and game machine

A display device comprising:

• a first light source configured to emit visible light;
• a second light source aligned with the first light source and configured to emit visible light;
• a light guide plate formed from a panel transparent to visible light;
• and
• a controller configured to control the turning on and off of the first light source and the second light source;
• the light guide plate including:
• an input surface configured to form one sidewall of the light guide plate facing the first light source and the second light source;
• a plurality of first prisms arranged along one surface of the light guide plate and distributed in a first pattern to reflect the visible light emitted from the first light source and entering the light guide from the input surface toward another surface of the light guide plate;
• and
• a plurality of second prisms arranged along said one surface of the light guide plate and distributed in a second pattern different from the first pattern to reflect the visible light emitted from the second light source and entering the light guide from the input surface toward said other surface of the light guide plate;
• and
• each first prism in the plurality of first prisms includes a reflection surface directly facing the first light source, and each second prism in the plurality of second prisms includes a reflection surface directly facing the second light source.

A game machine comprising:

• a main game unit;
• and
• a display device provided on the surface of the main game unit facing a player;
• the display device comprising:
• a first light source configured to emit visible light;
• a second light source aligned with the first light source and configured to emit visible light;
• a light guide plate formed from a panel transparent to visible light;
• and
• a controller configured to control the turning on and off of the first light source and the second light source;
• the light guide plate including:
• an input surface configured to form one sidewall of the light guide plate facing the first light source and the second light source;
• a plurality of first prisms arranged along one surface of the light guide plate and distributed in a first pattern to reflect the visible light emitted from the first light source and entering the light guide from the input surface toward another surface of the light guide plate provided facing a player;
• and
• a plurality of second prisms arranged along said one surface of the light guide plate and distributed in a second pattern different from the first pattern to reflect the visible light emitted from the second light source and entering the light guide from the input surface toward said other surface of the light guide plate;
• and
• each first prism in the plurality of first prisms includes a reflection surface directly facing the first light source, and each second prism in the plurality of second prisms includes a reflection surface directly facing the second light source.