Patent attributes
A vehicle state determination unit for determining a state of a vehicle, a display data output unit for outputting display data for displaying information indicating the state of the vehicle determined by the vehicle state determination unit, and an information displaying unit for displaying information to the outside of the vehicle in accordance with the display data output from the display data output unit are provided, in which the information displaying unit is configured to switch a display method of the information in accordance with an environment of the vehicle. By this, a degree of information transmission may be increased.