| 摘要 |
PURPOSE:To obtain good visibility in a back light condition where solar beam is dazzling as well as in a bright snow path by forming a display screen out of sheet-like article having photochromic character. CONSTITUTION:A display screen 4 of a dimmer type head up display for displaying the information displayed by irradiating a light source 2 for display on a display screen 4 provided on a front glass 5, by means of image formation in the front sight of a driver, is formed out of sheet-like article having photochromic character. A photochromic compound is included in the sheet-like article, and either organic or inorganic photochromic compound can be applied. The display screen 4 can be colored by ultraviolet, and the contrast of the information displayed can thus be increased. |
