Control device, vehicle, mobile terminal, and display device

A control device that executes display control to perform emphasis display of a preceding vehicle traveling in front of a predetermined vehicle, the control device comprising:

• a detection unit that detects a candidate vehicle that is a candidate for a following target of the predetermined vehicle from among a plurality of the preceding vehicles;
• a calculation unit that calculates, for the candidate vehicle detected, a reduction effect of energy consumption to be obtained by the predetermined vehicle when traveling following the candidate vehicle;
• and
• an emphasis display setting unit that performs setting for performing emphasis display of the candidate vehicle for which the reduction effect has been calculated, and sets a degree of emphasis of the emphasis display to be higher for a vehicle with which the reduction effect is large than for a vehicle with which the reduction effect is small, wherein
• when the display control is executed, the emphasis display of the candidate vehicle is performed according to the degree of emphasis set by the emphasis display setting unit.