A driving method as well as a circuit of a plasma display panel is provided
in which a rate of increasing voltage at start of a discharge is reduced,
a reset period is shortened, and an excessive discharge in the reset
period is avoided. The plasma display panel 1 comprises plural cells each
of which emits light when a discharge is generated between a pair of
display electrodes X and Y. Charge quantities of all cells are equalized
in a reset period. In a bias period of the reset period, a current is
supplied from a constant current circuit 93 to cells so that an increasing
voltage is applied to the pair of display electrodes, while a capacitance
element C3 is connected in parallel with a cell, so that an output current
Ic of the constant current circuit 93 is distributed to the capacitance
element C3 and the cell.
