Display system for vehicle

A display system for vehicle, comprising:

• a display located on an outer face or inside a vehicle cabin of a vehicle;
• a display controller configured to generate display data using route information concerning a route on which the vehicle operates and supply the display data to the display;
• a display power supply relay configured to switch on and off feeding of electric power to the display;
• a controller power supply relay configured to switch on and off feeding of electric power to the display controller;
• an instruction receiver configured to receive instructions for turning on and off the display power supply relay;
• a power supply controller configured to control the display power supply relay and the controller power supply relay;
• and
• an unlock detector configured to detect unlocking of a door effected by a key of the vehicle, wherein
• the power supply controller switches the controller power supply relay from an OFF state to an ON state when unlocking of the door is detected by the unlock detector, thereby feeding of power to the display controller is started and a process of generating the display data is started by the display controller,
• the power supply controller switches the display power supply relay from an OFF state to an ON state at a point of time of receiving an ON instruction from the instruction receiver after switching the controller power supply relay from the OFF state to the ON state, thereby placing the display system in a displaying mode in which feeding of power to both of the display controller and the display is carried out and a generated display data is supplied to the display, and
• in the displaying mode, upon receiving an OFF instruction from the instruction receiver, the power supply controller switches the display power supply relay from the ON state to the OFF state while maintaining the controller power supply relay in the ON state, and thereby places the display system in a sleep mode in which feeding of power to the display is shut off while feeding of power to the display controller is maintained.