Patent ID: 8305369
Filing Date: 2012-11-06
Classification: G09G

Abstract:
1. A display drive circuit for carrying out display with a tone corresponding to a potential of a pixel electrode by driving a display panel including a plurality of rows each including a scan signal line, a switching element that is turned on/off by the scan signal line, the pixel electrode connected to one end of the switching element, and a capacitive coupling interconnection capacitively-coupled to the pixel electrode, and further including a data signal line connected to the other end of the switching element on each of the rows, the display drive circuit comprising: a scan signal line drive circuit that outputs, in a horizontal scanning period which is sequentially allocated to the each of the rows, a scan signal for turning on the switching element on one row; a data signal line drive circuit that outputs a data signal of which polarity is reversed in sync with the horizontal scanning period for the each of the rows and of which polarity is opposite in an adjacent horizontal scanning period on one and the same row; a capacitive coupling interconnection drive circuit that outputs, after the horizontal scanning period for the each of the rows, a potential shift signal of which potential is switched between two potential levels along a direction determined according to the polarity of the data signal in the horizontal scanning period concerned, wherein