HEAD UP DISPLAY FOR A VEHICLE
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United States of America Patent
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Issued Date -
Dec 12, 2013
app pub date -
Jun 12, 2012
filing date -
Jun 12, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A head up display for a vehicle uses an anti-peep film to limit the optical image from the display module to be projected along a predetermined path, and the HUD is particularly designed so that the driver just can see the optical image displayed on the windshield without being able to see the optical image displayed on the display module. The use of the anti-peep film can reduce the brightness of the optical image projected from the display module. Therefore, a brightness-enhancement module is used to enhance the brightness of the optical image projected from the display module, so as to ensure that the optical image projected onto the reflection film from the display module can be clearly seen. Moreover, a first light source below the light guiding layer of the backlight module to substantially enhance the brightness of the optical image projected from the display module.
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