An LCD apparatus has a first scan line transmitting a first scan signal, a second scan line transmitting a second scan signal, a data line intersecting the first and second scan lines, a switch element electrically coupled to the first scan line and the data line, a pixel electrode electrically coupled to the switch element, a coupling capacitance electrically coupled to the pixel electrode and the second scan line. The second scan line has three different voltage levels. When the first scan line enables the switch element, the pixel electrode receives a data signal through the data line. When the second scan signal switches to the third voltage level from the second voltage level, the pixel electrode is negative polarity, and when the second scan signal switches to the second voltage level from the third voltage level, the pixel electrode is positive polarity.