| 摘要 |
Provided is a head-up display device that can be cooled at an optimal airflow rate. The head-up display device is provided with: a display unit (2) that is housed inside a case (1) and projects display light (D) for showing vehicle information by utilizing the illumination of light from light sources (24); multiple air blowers (41, 42) for cooling the display unit (2); and a control circuit (5) that performs drive control so as to switch between on and off states of the multiple air blowers (41, 42), respectively, in accordance with different conditions. In addition, the control circuit (5) performs the drive control so as to change the rotation speeds of the air blowers (4) in accordance with a detection signal from a temperature detection means (25) that detects a temperature of the display unit (2). |
