DISPLAY APPARATUS, CONTROL METHOD, PROGRAM, AND RECORDING MEDIUM

摘要

According to the present invention, a system controller (20) for a navigation device (1) displays, on a heads-up display (2), warning information urging caution with regard to the direction of approach toward the vehicle (Ve) of an approaching object when the object is determined to be approaching based on the approach distance (Ltag) and approach speed (Vtag) detected by an approach detection unit (3). In such a case, the system controller (20) acquires the driving status of the vehicle (Ve) and changes the threshold distance (Lth) and/or the threshold speed (Vth) used as an assessment standard for the approach of the object according to the acquired driving status of the vehicle (Ve).