PURPOSE: A mounting display device is provided to facilitate repair as a circuit box and a display board are apart during maintenance and repair. CONSTITUTION: A second mounting plate(120) is formed on the front side of a first supporting board. Clearance with a first supporting board is controlled by external force. A clearance adjusting part(130) operates the second supporting board in order to control the clearance with the first supporting board. A circuit box(170) is formed on the front side of the first supporting board. A display board(180) is electrically connected to the circuit box. The display board is coupled with the front side of the second supporting board.
