Patent ID: 8319768
Filing Date: 2012-11-27
Classification: G09G

Abstract:
1. A data line driving circuit for a liquid crystal display device comprising: a plurality of first data lines applied with a positive potential, a plurality of second data lines applied with a negative potential, comparison units that compare with a reference voltage at least one of a potential at a first common line connected to the plurality of first data lines and a potential at a second common line connected to the plurality of second data lines, and switches that are controlled so that the first data lines and the second data lines are set to a connection state or an interruption state according to a comparison result by the comparison units, wherein the potential at the first common line is different than a potential at the second common line, and wherein the plurality of first data lines are commonly switched according to the comparison results from the comparison units and the plurality of second data lines are commonly switched and separate from the switching of the first data lines according to the comparison results from the comparison units.