HEAD-UP DISPLAY APPARATUS

The present invention provides a head-up display apparatus capable of both long-distance display and short-distance display. A functional film is mounted on a glare trap part of a head-up display apparatus . In order to display a first virtual image , a first image display device projects a first image onto a windshield via the glare trap part. In order to display a second virtual image having a different display distance, a second image display device generates a second image on the functional film and projects the second image onto the windshield. For the functional film , a variable transmittance film having a light transmittance that varies according to the applied voltage or a transparent self-luminous film in which an irradiated portion emits light when irradiated with a laser beam of a specific wavelength is used.