DISPLAY CONTROL DEVICE AND DISPLAY SYSTEM

A display control device includes a surrounding information acquisition unit that acquires surrounding information around a host vehicle, a preceding vehicle information acquisition unit that acquires, based on the surrounding information, preceding vehicle information on a preceding vehicle that travels in front of a driving lane of the host vehicle, an effect calculation unit that calculates, based on the preceding vehicle information, effect information on a slipstream of the preceding vehicle, and a display control unit that performs control, based on the effect information, to display the effect of the slipstream of the preceding vehicle from a preceding vehicle display unit that displays the preceding vehicle to a host vehicle display unit that displays the host vehicle.