A driving circuit for a display panel comprising a driving voltage generator for outputting a plurality of gamma reference voltages, and a gray scale voltage generating unit for selecting one out of the plurality of gamma reference voltages and generating a gray scale voltage based on the selected gamma reference voltage, a liquid crystal display having the driving circuit, and a method for driving the liquid crystal display. A gamma reference voltage is dynamically changed depending on a user's selection, so that a gray scale voltage is changed, thereby varying the gamma characteristic and the viewing angle of an output image. Accordingly, a user can actively control the gamma characteristic and the viewing angle of an output image to be suitable for a user's preference and environment.