Display device, display control method, and non-transitory computer-readable recording medium

A display control method for a computer of a display device mounted on a vehicle to

• display a first image showing a speed range controllable by a driving controller that controls a speed of the vehicle to a constant speed in a speedometer image in which a scale is shown for each predetermined speed, a second image showing a target vehicle speed of the vehicle and displaying at the position associated with the speed scales of the first image, a third image showing the speed of the vehicle and displaying at the position associated with the speed scales of the first image, and a numerical value of the target vehicle speed on a display part, and
• execute speed from a standby state control when a state of the vehicle satisfies an execution condition of the speed control performed by the driving controller, and
• when the speed control performed by the driving controller enters an execution state, the display controller differentiates a display mode of the first image from a display mode of the standby state,
• display the second image in association with an upper limit or a lower limit of the first image on the display part when the speed of the vehicle deviates from the speed range while changing a display mode of the second image or the numerical value of the target vehicle speed, and display the first image as the display mode of the standby state.

A non-transitory computer-readable recording medium storing a program for a computer of a display device mounted on a vehicle to

• display a first image showing a speed range controllable by a driving controller that controls a speed of the vehicle to a constant speed in a speedometer image in which a scale is shown for each predetermined speed, a second image showing a target vehicle speed of the vehicle and displaying at the position associated with the speed scales of the first image, a third image showing the speed of the vehicle and displaying at the position associated with the speed scales of the first image, and a numerical value of the target vehicle speed on a display part, and
• execute speed from a standby state control when a state of the vehicle satisfies an execution condition of the speed control performed by the driving controller, and
• when the speed control performed by the driving controller enters an execution state, the display controller differentiates a display mode of the first image from a display mode of the standby state,
• display the second image in association with an upper limit or a lower limit of the first image on the display part when the speed of the vehicle deviates from the speed range while changing a display mode of the second image or the numerical value of the target vehicle speed, and displays the first image as the display mode of the standby state.