Patent ID: 8330695
Filing Date: 2012-12-11
Classification: G09G

Abstract:
1. A liquid crystal display device, wherein: a plurality of groups each of which includes a plurality of scanning signal lines are sequentially selected; data signal electric potentials having identical polarities are sequentially supplied to a data signal line for each horizontal scan period, in response to a plurality of scanning signal lines, which belong to a selected one of the plurality of groups, being sequentially subjected to horizontal scans; a scanning pulse for each of the horizontal scans is supplied to each of the plurality of scanning signal lines; a polarity of the data signal electric potentials for a first group is different from that of a second group, the first and second groups being sequentially selected, the second group being selected after the first group is selected; n-piece (n is an integer of 1 or more) of dummy scan period(s) is(are) put between (i) a horizontal scan period corresponding to a last horizontal scan in the first group and (ii) a horizontal scan period corresponding to a first horizontal scan in the second group; a dummy signal electric potential is supplied to the data signal line in a dummy scan period included in the n-piece of dummy scan period(s); and a time period from a time point when a scanning pulse which corresponds to the last horizontal scan in the first group becomes nonactive to a time point when the dummy scan period is started is set to be longer than a time period from a time point when a scanning pulse corresponding to one of consecutive two horizontal scans becomes nonactive in the first group to a time point when a horizontal scan period corresponding to the other of the consecutive two horizontal scans is started.