| 摘要 |
A display device is provided, by which the road traffic information can be easily seen. The display device displays a map on a displaying section of the display device and also displays traffic information along roads in the map on the basis of road traffic information. The display device includes: a composing section for composing traffic information images having different forms from each other depending upon types of the traffic information; and a superposing section for superposing the traffic information images so that the traffic information images are alternately displayed on an image of the map.
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