A liquid crystal display includes a liquid crystal display panel which displays an image in response to a gate signal and a data signal, a panel driving circuit which provides the gate signal and the data signal to the liquid crystal display panel in response to a control signal, a backlight unit including n light generating blocks which provide light to the liquid crystal display panel, and a backlight control unit which turns each of the n light generating blocks on and off i times during one frame period. Each of the n light generating blocks has a different duty ratio for each of i turn-on periods when the n light generating blocks are turned on in the one frame period, and ‘n’ and ‘i’ are integers greater than or equal to two (2).