| 摘要 |
<p>A head-up display device (100, 100a) comprising a projection unit ((1) configured to project predetermined information on a transparent display panel (2, 2a) by superimposing on a background (400) that is viewed by a user through the transparent display panel (2, 2a) placed in front of a line of sight of the user; and a controller (17) configured to control a display (300) of the predetermined information while changing a display color of the predetermined information sequentially independent of a color of the background (400).</p> |
