An apparatus and method for controlling automatic adjustment of a power
supply of a display panel driving system. According to the apparatus and
method, a voltage of the power supply of the display panel driving system
is automatically adjusted in order to have the best possible image
quality. According to the apparatus and method, since the PDP driving
power supply is not manually adjusted using the variable resistors as in
the related art, but is automatically adjusted. The apparatus
manufacturing process is simple, and deviation caused by the automatic
adjustment of the power supply is decreased compared with the manual
adjustment of the related art, by automatically adjusting the PDP driving
voltage affecting to the contrast deviation and brightness deviation of
the PDP image in the PDP driving power supply circuit so as to maintain
the best possible image quality.
