| 摘要 |
PROBLEM TO BE SOLVED: To provide a display device including a plurality of display parts whose operations are controlled respectively, the display device being characterized in that wiring is simplified, it is easy to install the respective display parts, relate and install the respective parts, and inspect, repair, and replace the respective parts and so on, and it is easy and simple to change display part positions and remove and add display parts. SOLUTION: The display device includes the display parts 1 to 4, a display part operation indication part SP, and a main control part MC; and the display parts 1 to 4 are connected to the main control part MC in parallel through power supply lines A and B and also connected to the respective display parts through a common signal line SL, and the control part MC reads indications of the indication part SP, transmits digital signals corresponding to the indications to the respective display parts through the signal line SL, and applies a display part operating voltage to the respective display parts through the power supply lines A and B. Each display part turns ON and OFF a drive circuit 81 of a light emission part 12, 22, 32, or 42 according to an inputted digital signal when the digital signal is designated to the display part itself. COPYRIGHT: (C)2006,JPO&NCIPI
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