| 摘要 |
PROBLEM TO BE SOLVED: To provide a display device capable of ensuring display by preventing the light emission of a nail insertion hole for inserting an obstacle nail. SOLUTION: Regarding the display device comprising a light guide plate provided on the game board of a game machine and a light source for emitting emission light to be made to enter the light guide plate from a side face, for displaying display information by reflecting the emission light which has entered by dots formed on the light guide plate, the nail insertion hole for inserting the obstacle nail to be driven to the game board is formed on the light guide plate, and mirror finish is executed to the hole surface of the nail insertion hole. COPYRIGHT: (C)2006,JPO&NCIPI
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