Display device and method of driving the same

A display device comprising:

• a display unit comprising a plurality of pixels configured to display an image according to a driving voltage;
• a data driver configured to provide data signals to the plurality of pixels;
• a gamma voltage generator configured to provide a plurality of grayscale voltages to the data driver;
• a reference voltage generator configured to provide a first reference voltage and a second reference voltage to the gamma voltage generator;
• and
• a timing controller configured to compare data voltage information of adjacent pixel rows to generate data offset information, and to provide the data offset information to the reference voltage generator,
• wherein the gamma voltage generator is configured to generate the plurality of grayscale voltages by dividing the first reference voltage and the second reference voltage,
• the reference voltage generator is configured to generate a sensing driving voltage by measuring the driving voltage from the display unit, and to generate the first reference voltage and the second reference voltage by utilizing the sensing driving voltage and a reference driving voltage, and
• wherein the reference voltage generator is configured to control the first reference voltage and the second reference voltage according to the data offset information, the sensing driving voltage, and the reference driving voltage.

A method of driving a display device, the method comprising:

• generating a sensing driving voltage by measuring a driving voltage supplied to a display unit comprising a plurality of pixels;
• generating data offset information by comparing data voltage information of adjacent pixel rows;
• generating a first reference voltage and a second reference voltage according to the sensing driving voltage, a reference driving voltage, and the data offset information;
• and
• generating a plurality of grayscale voltages by dividing the first reference voltage and the second reference voltage.