Patent ID: 8035634
Filing Date: 2011-10-11
Classification: G06F

Abstract:
1. A driving circuit for an electro-optical device, comprising: a plurality of scanning lines arranged horizontally; a plurality of data lines arranged vertically; a plurality of capacitor lines provided in correspondence with the plurality of scanning lines; pixels arranged at positions corresponding to intersections of the plurality of scanning lines and the plurality of data lines, wherein each of the pixels includes a pixel switching element, a pixel capacitor and a storage capacitor, wherein one end of the pixel switching element is connected to a corresponding one of the data lines and is brought into an electrical conduction state when a corresponding one of the scanning lines is selected, wherein one end of the pixel capacitor is connected to the other end of the pixel switching element, and the other end of the pixel capacitor forms a common electrode, and wherein the storage capacitor is connected between the one end of the pixel capacitor and the capacitor line arranged in a position corresponding to that of the corresponding one of the scanning lines; a scanning line driving circuit that sequentially selects the scanning lines in a predetermined order; a capacitor line driving circuit that supplies a first capacitive signal to the capacitor line provided at a position corresponding to that of one scanning line when the one scanning line is selected, and changes a voltage applied to the one scanning line by a predetermined value when a scanning line, located a predetermined number of scanning lines away from the one scanning line, is selected; a first capacitive signal output circuit that outputs the first capacitive signal so that a first target voltage is applied to the capacitor line corresponding to the one scanning line when the one scanning line is selected; and a data line driving circuit that supplies the pixels corresponding to the selected scanning line with data signals of voltages corresponding to gray-scale levels of the pixels through the data lines, wherein the capacitor line driving circuit includes first and second transistors, both of which are provided in correspondence with the corresponding one of the capacitor lines, wherein a gate electrode of the first transistor corresponding to one capacitor line is connected to the scanning line corresponding to the one capacitor line and a source electrode of the first transistor is connected to a first power feed line that supplies the first capacitive signal, wherein a gate electrode of the second transistor is connected to the scanning line located a predetermined number of scanning lines away from the one scanning line and a source electrode of the second transistor is connected to a second power feed line that supplies a second capacitive signal, and wherein drain electrodes of the first transistor and the second transistor are commonly connected to the one capacitor line.