| 摘要 |
PURPOSE: A liquid crystal display device is provided to increase transmittance while reducing an operation voltage when a liquid crystal panel is inversely operated by alternately swinging a data voltage and a common voltage respectively. CONSTITUTION: A common voltage generating unit(140) alternates a plus common voltage and a minus common voltage at every frame. The plus common voltage and the minus common voltage are outputted from an odd common voltage line and an even common voltage line. A common voltage control unit controls the common voltage generating unit to move the minus common voltage from the lowest voltage level to the top voltage level. The common voltage control unit controls the common voltage generating unit to move the plug common voltage from the top voltage level to the lowest voltage level. |
