A head-up display device and a display method thereof are provided the head-up display device includes: an image source configured to generate and emit light having image information; a first polarization control device configured to receive the light and convert the light into a first polarized light or a second polarized light having a polarization direction different from a polarization direction of the first polarized light; and a focal length switching device configured to have different deflection effects on the first polarized light and the second polarized light, such that the first polarized light and the second polarized light passing through the focal length switching device are projected onto a projection screen to respectively present virtual images which are at different distances from the projection screen.
HEAD-UP DISPLAY DEVICE AND DISPLAY METHOD THEREFOR
HEAD-UP-ANZEIGEVORRICHTUNG UND ANZEIGEVERFAHREN DAFÜR
DISPOSITIF D'AFFICHAGE TÊTE HAUTE ET SON PROCÉDÉ D'AFFICHAGE
2022-07-06
Patent
Electronic Resource
English
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