Head-up display device

A head up display device for a vehicle, displaying a first virtual image in a first virtual image displayable area, and displaying a second virtual image in a second virtual image displayable area, the head up display device comprising:

• an angle varying unit for changing an angle formed between the first virtual image displayable area and the second virtual image displayable area, the angle varying unit being configured to adjust an inclination of the first virtual image displayable area relative to the second virtual image displayable area to change the angle;
• and
• a control unit for performing a virtual image angle adjustment process for adjusting the angle through the angle varying unit, and a virtual image position change process for changing at least one of a position of the first virtual image in the first virtual image displayable area and a position of the second virtual image in the second virtual image displayable area in order to suppress a misalignment of a relative positional relationship of the first virtual image and the second virtual image when performing the virtual image angle adjustment process.