| 摘要 |
PROBLEM TO BE SOLVED: To provide a display device capable of smoothing the passing of an emergency vehicle by informing the approach of the emergency vehicle to car inside and outside. SOLUTION: This display device is mounted on a mobile body and, when receiving a radio wave including position information of the emergency vehicle, the distance between the mobile body and the emergency vehicle is detected based on the position information. When the distance becomes a prescribed value or less, this display device displays an attention to the approach of the emergency vehicle on the inside and outside of the mobile body.
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