HEAD UP DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce the distortion of a magnified image while downsizing a head up display device by a large margin. SOLUTION: A liquid crystal display 1 is disposed in such a state that the display plane is approximately parallel to a hologram concave mirror 2. This liquid crystal display 1 is longitudinally revolvable around a display center position (d) of the hologram concave mirror 2 as the rotational center as shown by an arrow markαand is longitudinally autorotatable around a longitudinal center position (e) as the rotational center as shown by an arrow markβ.