A driving circuit for display elements, comprises a modulation circuit
that outputs a modulating signal to be applied to wiring to which display
elements are connected; and an output circuit that serializes modulation
data including height value data for determining a height value of at
least part of waveform of the modulating signal and pulse width data for
determining a pulse width of at least part of waveform of the modulating
signal so that the modulation data can be transmitted to the modulation
circuit by transmission paths, the number of which is smaller than the
number of bits of the modulation data, and outputs the serialized
modulation data.