| 摘要 |
<p>The present invention relates to a head-up display device for a vehicle which can control the reflectivity of a liquid crystal film to be reduced or increased according to the ambient luminance of a vehicle. The head-up display device for a vehicle according to the present invention can control the reflectivity of the liquid crystal film to be reduced when it is dark around the vehicle and control the reflectivity of the liquid crystal film to be increased when it is bright around the vehicle, thereby enabling a driver to easily identify an image projected on the liquid crystal film even if the ambient luminance of the vehicle is high. Also, the head-up display device for a vehicle according to the present invention enables the driver to easily identify the image projected on the liquid crystal film by making the image projected on the liquid crystal film correspond to the direction the driver watches when the vehicle turns left or right and enables the liquid crystal film to minimally block the driver′s view by reducing the reflectivity of other portions other than the portion of the liquid crystal film on which the image is projected.</p> |
