Display device

A display device comprising:

• a display panel with multiple pixels;
• and
• a display controller that receives an input video signal and a sync signal and gets an image presented on the display panel,
• wherein if one standard horizontal scanning period and one vertical scanning period to write image data on the display panel are represented by 1H and V-Total, respectively, the display controller is configured to form one vertical scanning period V-Total of a first period in which one horizontal scanning period of the display panel is 1Ho, which is as long as 1H, and a second period in which one horizontal scanning period of the display panel is 1Hn, which is not as long as 1H, the second period is a number of continuous horizontal scanning periods each having a length of 1Hn, wherein the pixels are arranged in columns and rows so as to form a matrix pattern, each said pixel including,
• a first subpixel and a second subpixel, having liquid crystal layers to which mutually different voltages are applicable, and
• a plurality of electrodes for applying the mutually different voltages to the liquid crystal layers,
• two switching elements that are provided for the first and second subpixels, respectively, and
• each of the first and second subpixels includes,
• a liquid crystal capacitor formed by a counter electrode and a subpixel electrode that faces the counter electrode through the liquid crystal layer, and
• a storage capacitor formed by a storage capacitor electrode that is electrically connected to the subpixel electrode, an insulating layer, and a storage capacitor counter electrode that is opposed to the storage capacitor electrode with the insulating layer interposed between them, and
• wherein the counter electrode is a single electrode provided in common for the first and second subpixels, while the storage capacitor counter electrodes of the first and second subpixels are electrically independent of each other, and
• a storage capacitor counter voltage applied to each said storage capacitor counter electrode by way of an associated storage capacitor line oscillates in a cycle time that is an integer number of times as long as Ho during the first period included in V-Total but oscillates in a cycle time that is an integer number of times as long as Hn during the second period, wherein
• when one vertical scanning period V-Total is represented as the sum of an effective display period V-Disp and a vertical blanking interval V-Blank and V-Total=mxH and V-Disp=m0×H, then
• V-Disp=m0×Ho, V-Blank=m1×Ho+m2×Hn, m, m0, m1 and m2 being positive integers, and m2xHn is an integer number of times as long as one cycle time of the storage capacitor counter voltage during the second period.