A liquid crystal display (400) includes a liquid crystal panel (430), a scanning driver (410), a data driver (420), and a compensator (440). The liquid crystal panel includes gate lines (401) parallel to each other, data lines (402) intersecting the gate lines, and TFTs (403) arranged at each intersection. The scanning driver is configured for providing scanning signals. The compensator is configured for compensating the scanning signals. The compensator comprises switching elements (450) connected to tail ends of the gate lines respectively. When one gate line is scanned, a high compensating voltage is applied to the tail end through a corresponding switching element to accelerate to turn on the TFTs adjacent to the tail end. And at an end of the scanning time, a low compensating voltage is applied to the tail end through the corresponding switching element to accelerate to turn off the TFTs adjacent to the tail end.