DRIVING METHOD OF DEPLAY DEVICE HAVING MAIN DISPLAY AND SUB DISPLAY

摘要

Two display panels (10m, 10s) each have a plurality of scanning lines and a plurality of signal lines with display pixels situated near each intersection point of each scanning line and signal line. A common electrode is situated in common with each of the display pixels and the display panels have a predetermined numbers of the scanning lines respectively. While repeating alternately between each of the display panels (10m, 10s) in a display period within a one frame period, an operation sequentially selects a number of the scanning lines of each of these display panel in turn in each display period corresponding to the ratio of the numbers of the scanning lines in each of these display panels at predetermined scan timing. Reversal control of the signal polarity of each common signal voltage is applied to the common electrode of each display panel (10m, 10s) in order that reversal drive of each display panel is performed for every scanning line and every frame period.