Patent ID: 8284146

Claim:
An active matrix-type display device comprising: a plurality of video signal lines for transmitting a video signal based on an image to be displayed; a plurality of scanning signal lines crossing the plurality of video signal lines; a plurality of switch elements disposed in a matrix respectively in correspondence with intersections of the plurality of video signal lines and the plurality of scanning signal lines; a plurality of pixel electrodes respectively connected to the plurality of switch elements; a common electrode commonly provided for the plurality of pixel electrodes; a video signal line driving circuit for applying the video signal to the plurality of video signal lines so that polarity of potential of the plurality of pixel electrodes for the potential of the common electrode is inverted every first number of horizontal scanning periods; and a transition period video signal potential determining unit for determining a potential of a video signal to be applied to the plurality of video signal lines in a transition period in a frame period made of an effective video period and a vertical blanking period and in which displaying an image of one frame is performed, the transition period being a length of a horizontal scanning period and a period in which a time is passed from start time point of the vertical blanking period, wherein from an end time point of the transition period in a preceding frame period of two successive frame periods to a start point of the effective video period in a subsequent frame period, the video signal line driving circuit and the plurality of video signal lines are electrically separated from each other.