Abstract: A method of driving a light source includes outputting a light source driving signal and outputting a delayed driving signal. The light source driving signal drives a light source based on image data. The delayed driving signal is generated by delaying the light source driving signal based on a vertical sync signal having a frame period of the image data and a data enable signal having a horizontal line period of the image data.

Abstract: A display apparatus includes data lines, gate lines, a first pixel unit, a second pixel unit, and a data driver circuit. The data lines extend in a first direction. The gate lines extend in a second direction crossing the first direction. The first pixel unit includes red, green and blue sub pixels. Each of the red, green and blue sub pixels has a short side of the first direction and a long side of the second direction. The second pixel unit includes the red, green and white sub pixels. Each of the red, green and white sub pixels has a short side of the first direction and a long side of the second direction. The data driver circuit outputs a plurality of data voltages to the data lines. Each of the data voltages has a polarity according to an inversion mode.

Abstract: A method of driving a light source includes outputting a light source driving signal and outputting a delayed driving signal. The light source driving signal drives a light source based on image data. The delayed driving signal is generated by delaying the light source driving signal based on a vertical sync signal having a frame period of the image data and a data enable signal having a horizontal line period of the image data.

Abstract: A method of driving a light-source which provides a display panel displaying a picture during at least one frame period with light, includes determining a dimming-level configured to control a luminance of the light based on image data, determining whether the dimming-level of a current picture corresponds to a repetition dimming mode based on the dimming-level of a first previous picture, the first previous picture being displayed on the display panel prior to the current picture, and determining the dimming-level of the current picture to a fixed dimming-level in the repetition dimming mode.