A method of driving a display having a plurality of light-emitting
elements that change with time or use, comprising the steps of: a)
receiving and displaying a first image signal and storing an attribute of
the first image signal; b) receiving and displaying a subsequent second
image signal; c) comparing a corresponding image attribute of the
subsequent second image signal to the stored first image attribute to
form a subsequent second image difference signal; d) displaying a screen
saver image signal when the subsequent second image difference signal
does not exceed a first limit; e) receiving a plurality of subsequent
third image signals while the screen saver image signal is being
displayed; f) comparing corresponding image attributes of the subsequent
third image signals to the stored first image attribute to form a
corresponding plurality of subsequent third image difference signals; and
g) displaying a third image signal only when more than one subsequent
third image difference signals exceed a second limit.