A lamp driver system that facilitates improved reliability and performance for
a display system is provided. The lamp driver system includes a fault detector
and an output steering device. The fault detector determines when a failure occurs
in a lamp illuminating the display system. The output steering device selectively
drives the lamps to illuminate the display system. Specifically, when a failure
in a first lamp is detected by the fault detector, the output steering device is
used to selectively drive a second lamp to provide the needed illumination to the
display system. The lamp driver system thus can provide redundancy in the display
system by automatically switching to a backup lamp when a failure in the first
lamp is detected. This redundancy can improve the reliability and performance of
the display system.