| 摘要 |
A head-up display device for motor vehicles, designed to display an image (4b), which, to the eyes of the driver, is superimposed on the windscreen (2) of the motor vehicle, comprises a LED display (4) positioned on the top surface (3a) of the dashboard (3) of the motor vehicle so as to direct the light rays directly against the internal surface (2a) of the windscreen (2) of the motor vehicle in order to cause reflection thereof in the direction of the driver. The LEDs (7) of the display (4) are arranged and/or controlled according to the type of optical alteration due to the double reflection on the two opposite surfaces of the windscreen (2) so that the image defined by said LED display (4) is transformed, following upon said optical alteration, into the image that it is desired to make visible to the driver.
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