Patent ID: 7196697

Claim:
A drive circuit of a display device for driving pixels provided in correspondence with intersections of scanning lines and data lines, comprising: a scanning line drive circuit that selects the scanning lines on a one-by-one basis, and applies a selection voltage to the selected scanning line, while applying a non-selection voltage to all other scanning lines, a plurality of an odd number of the scanning lines being bundled into a block, a polarity of the selection voltage being reversed each time one scanning line is selected on the basis of an intermediate value of an ON voltage and an OFF voltage applied to the data lines in a block, a selection voltage of a scanning line lastly selected in a block being set to the same polarity as that of a selection voltage of a scanning line firstly selected in a block following the aforesaid block; a data line drive circuit that, when a scanning line is selected and the selection voltage is applied thereto, applies one of the ON voltage and the OFF voltage on the basis of information to be displayed by a pixel associated with an intersection of the scanning line and the data line and the polarity of the selection voltage to the data line; wherein the scanning line drive circuit shifts the boundary of the blocks in sequence for each vertical scanning period, the scanning line drive circuit applying the non-selection voltage in place of the selection voltage to the scanning line that is selected firstly or lastly in a block.