Display device and method of driving the same

A display device comprising:

• a display unit including a data line, a sensing line, and a pixel connected to the data line and the sensing line, the pixel including a light emitting element and a transistor for providing a driving current to the light emitting element;
• a timing controller generating a first voltage value by compensating a first grayscale value and generating a second voltage value by remapping the first voltage value;
• a data driver generating a data voltage based on the second voltage value and supplying the data voltage to the data line;
• and
• a sensing unit providing an initialization voltage to the sensing line,
• wherein the timing controller remaps the first voltage value that is in a first voltage range to the second voltage value that is in a second voltage range by shifting a minimum voltage value of the first voltage range to a voltage value corresponding to a sum of the initialization voltage and a threshold voltage of the transistor, and a voltage difference between the data voltage and the threshold voltage of the transistor is greater than or equal to the initialization voltage.

A method of driving a display device, wherein the display device includes a data line, a sensing line, and a pixel connected to the data line and the sensing line, and wherein the pixel includes a light emitting element and a transistor for providing a driving current to the light emitting element, the method comprising:

• converting a first grayscale value for the pixel into a first grayscale voltage value according to a reference gamma curve;
• calculating a first voltage value by adding the first grayscale voltage value and a compensation value;
• calculating a second voltage value by remapping the first voltage value from a first voltage range to a second voltage range;
• generating a compensated second voltage value by compensating the second voltage value based on a threshold voltage of the transistor;
• and
• providing an initialization voltage to the pixel through the sensing line and a data voltage that is generated based on the compensated second voltage value to the pixel through the data line,
• wherein the compensation value is preset based on a characteristic deviation of the pixel or calculated based on a level of deterioration of the pixel, and
• wherein the calculating the second voltage value includes remapping the first voltage value to the second voltage value by shifting a minimum voltage value of the first voltage range to a voltage value corresponding to a sum of the initialization voltage and the threshold voltage of the transistor, and a voltage difference between the data voltage and the threshold voltage of the transistor is greater than or equal to the initialization voltage.