| 摘要 |
PROBLEM TO BE SOLVED: To provide a display system which detects whether or not a portable display device has been installed in a predetermined installation state for a cradle, and can prompt a user to install in a correct installation state based on the detection results.SOLUTION: When a power reception and communication unit 13 receives power supply from a power supply and communication unit 23, a request signal for confirming communication connection is transmitted from the power reception and communication unit 13 to the power supply and communication unit 23, and a determination is made that a display device 1 is installed in a predetermined installation state, if a communication connection signal is received from the power supply and communication unit. If the communication connection signal is not received from the power supply and communication unit 23, a determination is made that a display device 1 is not installed in a predetermined installation state, and the display section 11 of the display device 1 is notified of the effect that the display device is not installed in a predetermined installation state. |
