Vehicle display device
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United States of America Patent
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Aug 30, 2022
Grant Date -
Mar 11, 2021
app pub date -
Sep 2, 2020
filing date -
Sep 5, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicle display device includes a reflection-type hologram disposed inside a windshield of a vehicle, and a projection device including an image display device outputting a display light and a regulating unit configured to regulate a diffusion angle of the display light, and to project the display light having passed through the regulating unit onto the hologram. The hologram outputs the display light projected from the projection device as diffracted light directed to an eye range of the vehicle, and the regulating unit is configured to regulate the diffusion angle of the display light to an upper limit angle or less such that the display light reflected from the windshield is directed in a direction different from the eye range.
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