Patent ID: 8330755

Claim:
A driving method for an image display device that includes a display portion formed of a display region where a number of pixels are aligned in a matrix in rows and columns, a plurality of signal lines aligned so as to extend in the column direction of said matrix in order to input a display signal voltage into the pixels in said display region, and a signal line driving circuit for applying a signal voltage to said signal lines, the driving method comprising: outputting, via said signal line driving circuit, a signal voltage in accordance with input display data for a number of signal lines arranged relative to one another in a direction of data lines within the display portion to said plurality of signal lines during a first portion of one-frame period; and outputting, via said signal line driving circuit, a voltage which increases or decreases for the number of signal lines collectively during a subsequent portion of the one-frame period for a certain period that correlates to a quantity of the number of signal lines to the plurality of signal lines, and wherein the voltage which increases or decreases during said certain period is a plurality of triangular waves that increase or decrease during the one frame period, the quantity of said number of signal lines is three or more, and the quantity of said number of signal lines is less than or equal to n/2, where n is a quantity of the pixels in the column direction.