Disclosed are a data driver, a display, and a method of driving a display. The data driver for driving a data line which is a capacitive load having one end electrically connected to a unit pixel includes an energy retrieving unit configured to drive the data line by applying a voltage to the data line, and a data driving unit configured to finely tune a voltage and drive the data line with an end voltage. The energy retrieving unit retrieves energy charged up in the data line in stages by driving the data line with voltages from a start voltage to the end voltage through an intermediate voltage.