Patent ID: 7215308

Claim:
A display driving method for a display element wherein a plurality of scanning lines and data lines extending perpendicularly to said scanning lines for being supplied with a data signal corresponding to pixel data are disposed in a matrix and, at each of intersecting points between said scanning lines and said data lines, a pixel capacitor and a switching element for rendering conducting a route for supplying the data signal to said pixel capacitor by a scanning signal voltage applied to said scanning line are connected, the method comprising the steps of: a scanning step of starting application of the scanning signal voltage with a first amplitude level which is within an allowable level based on a withstanding voltage characteristic of said switching element; a precharging step of applying a precharge voltage of a predetermined level to said data lines before supply of data to said data lines is started after application of the scanning signal voltage of the first amplitude level is started; an amplitude changeover step of changing over the scanning signal voltage being applied with the first amplitude level to a second amplitude level larger than the first amplitude level at a predetermined timing within a period within which a potential generated by the application of the precharge voltage is maintained, wherein said amplitude change over step changes the scanning signal voltage to said second amplitude level when said data signal has a predetermined polarity, and said second amplitude level exceeds the allowable level; and an application step of applying, when the scanning signal voltage of the first amplitude level is applied, an on/off control signal voltage of a third amplitude level which is within an allowable level based on a withstanding voltage characteristic of a data signal switching element.