Display device supporting normal and variable frame modes

A display device comprising:

• a display panel including a plurality of pixels;
• a gate driver configured to provide a gate signal to the plurality of pixels;
• a data driver configured to provide data voltages to the plurality of pixels;
• and
• a timing controller configured to receive image data, and to control the gate driver and the data driver,
• wherein the timing controller is configured to detect whether a frame mode of the display device is a normal mode in which image data are received with a constant frame rate or a variable frame mode in which the image data are received with a variable frame rate, and to set an output buffer drivability of the data driver according to the detected frame mode, and
• wherein the data driver outputs the data voltages corresponding to the image data with respective slew rates corresponding to the set output buffer drivability.

A display device comprising:

• a display panel including a plurality of pixels;
• a gate driver configured to provide a gate signal to the plurality of pixels;
• a data driver;
• and
• a timing controller configured to receive image data, control the gate driver and the data driver, and to detect at least one of a frame rate mode or a frame rate of the image data;
• wherein the data driver comprises a plurality of output buffer amplifiers that provide data voltages to the plurality of pixels, the output buffer amplifiers being supplied with a varying bias signal to control power consumption thereof based on at least one of the frame rate mode or the frame rate.