| 摘要 |
A display device is provided to obtain required security for special purpose by using a frame of a previous display device without modifying the frame. A cabinet is formed by combining a front cabinet(101) and a rear cabinet(102), and a display unit(110) and an electric filed unit(200) is prepared inside a cabinet. The display unit displays information, and the electric field unit is equipped with a circuit board and an electric device for driving the display device. The electric field unit is coupled to a supporting unit(103) formed at the rear cabinet.
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