An liquid crystal display with data compensating function includes a plurality of gate lines, a plurality of first data lines, a plurality of second data lines, a pixel array, a first common end, a second common end, a plurality of first coupling lines, and a plurality of second coupling lines. The first coupling lines are disposed correspondingly near the first data lines, and are coupled to the first common end. The second coupling lines are disposed correspondingly near the second data lines, and are coupled to the second common end. The first common end carries voltages having same polarity as those of the first data lines for driving the first coupling lines. The second common end carries voltages having same polarity as those of the second data lines for driving the second coupling lines. The first common end is isolated from the second common end.