Combination instrument for a motor vehicle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 27, 2004
Grant Date -
Jan 24, 2002
app pub date -
May 21, 2001
filing date -
May 30, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a combination instrument for a motor vehicle, in particular for a utility vehicle or a bus, having an LC display (1), a light-guiding plate (4) is provided, into which ambient light is injected from inside or from outside the motor vehicle, in which the injected ambient light is guided by total reflection at the side of the LC display (1) facing away from the viewer and which has, at the side of the LC display (1) facing away from the viewer, a coating (11) or a structure (13) for extracting the ambient light out of the light-guiding plate (4) there and for injecting the ambient light into the LC display (1). This measure backlights the LC display (1), leading to a significant increase in the contrast for information displayed on the LC display (1).
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