Patent ID: 8289312

Claim:
A liquid crystal display device having a function of switching a liquid crystal driving frequency, comprising: a plurality of pixel circuits each including a liquid crystal element, the pixel circuits being arranged at intersections of a plurality of scanning signal lines and a plurality of data signal lines; a scanning signal line drive circuit configured to switch between applying one of a selection voltage and a non-selection voltage to each of the plurality of scanning signal lines, the non-selection voltage being lower than the selection voltage; and a data signal line drive circuit configured to switch between applying a positive polarity voltage and a negative polarity voltage, both in accordance with display data, to each of the plurality of data signal lines, wherein the scanning signal line drive circuit is configured such that, for each of the plurality of scanning signal lines, at least one of a first difference and a second difference becomes large as a driving frequency of the liquid crystal element is low, the first difference being a difference between a first voltage corresponding to the selection voltage applied by the scanning signal line drive circuit to the scanning signal line upon the application of the positive polarity voltage and a second voltage corresponding to the non-selection voltage applied by the scanning signal line drive circuit to the scanning signal line after the application of the positive polarity voltage, the second difference being a difference between a third voltage corresponding to the selection voltage applied by the scanning signal line drive circuit to the scanning signal line upon the application of the negative polarity voltage and a fourth voltage corresponding to the non-selection voltage applied by the scanning signal line drive circuit to the scanning signal line after the application of the negative polarity voltage.