Patent ID: 7358940
Filing Date: 2008-04-15
Classification: G09G

Abstract:
1. A circuit for driving an electro-optical device having a plurality of pixels, each pixel having a pair of a switching element and a pixel electrode formed at each intersection of a plurality of scanning lines and a plurality of data lines, the switching element being inserted so as to electrically switch between the data line and the pixel electrode, and the pixel electrode opposing a counter electrode with an electro-optical material interposed therebetween, the circuit for driving an electro-optical device comprising: a scanning line driving circuit for sequentially selecting the scanning lines; a data line driving circuit for, when one of the scanning lines is selected, supplying the data line with an image signal according to a gray scale level of the pixel corresponding to the intersection of the selected scanning line and data line; and a precharge circuit that: integrates, for some or all of the pixels of one row which are disposed along the selected scanning line, a difference between the gray scale level of each of the pixels corresponding to the intersection of the selected scanning line and a reference gray scale level previously set; and precharges, prior to supplying the data lines with image signals of the pixels corresponding to a next selected scanning line, the data lines with voltages corresponding to the integrated value.