| 摘要 |
A display device (1) is provided with a multiplex communication means (multiplex communication interface means) (1b) connected to a transmission line (6) through an input-output circuit (1a) and a system means (information processing means) (1c) connected to a display (1f) through an output circuit (1e). The means (1b and 1c) are integrally constituted to an electronic controller (ECU) (1d). The display (1) makes a prescribed display as a parent station. Display devices (2 and 3) are not provided with multiplex interface means and information processing means like those mentioned above, but with input circuits (2g and 3g), output circuits (2e and 3e), and displays (2f and 3f). The display devices (2 and 3) are connected to the display device (1) as child stations, receive the output signal of the ECU (1d) of the display device (1), and make prescribed display.
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