The liquid crystal display panel of the present invention provides rapid highlighting
of the display. To provide highlighting, current to the backlighting lamp is increased
from a normal current to a highlighting current. During the transition from the
normal current to the highlighting current, the current to backlighting lamp is
increased to an intermediate current above the highlighting current, and then decreased
to the highlighting current. The increase to an intermediate current provides greater
energy to the backlighting lamp than a direct increase from the low current to
the highlighting current. The increased energy heats the backlighting lamp quickly
to provide the increased light for highlighting. In addition, reducing the current
to the backlighting lamp below the normal current when leaving the highlighting
mode decreases the time to leave the highlighting mode.
