A display control device for controlling a display screen image of a touch-panel display from both a passenger seat and a driver's seat of a vehicle. The display control device includes a controller for controlling the display screen image based on a touch manipulation performed in regard to the touch-panel display by the user. The controller outputs a first control command for displaying a home screen image including a passenger seat icon and a driver's seat icon, and outputs a second control command for displaying a settings screen image pertaining to the passenger seat and the driver's seat. The driver's seat icon includes a set temperature for the driver's seat. The passenger seat icon includes a set temperature for the passenger seat. The passenger seat settings screen image and the driver's seat settings screen image being arranged on the display screen image so as to have bilateral symmetry.