Display Device and Driving Method Thereof

A driving method of a display device including a display panel including a sub-pixel and a data driver including a driving circuitry configured to output data voltage to the sub-pixel and a sensing circuitry configured to sense a characteristic of the sub-pixel, the driving method comprising:

• determining a compensation value of video data based on sensing of a characteristic of the sub-pixel;
• sensing a data voltage output by the driving circuitry via the sensing circuitry, the outputted data voltage compensated using the compensation value;
• and
• correcting the compensation value based on the sensed output data voltage.

A display device comprising:

• a display panel comprising a sub-pixel;
• a data driver comprising a driving circuitry configured to output data voltages corresponding to video data to the sub-pixel and a sensing circuitry configured to sense a characteristic of the sub-pixel, the output data voltages including first output data voltages associated with a linear characteristic of the output data voltages and second output data voltages associated with a non-linear characteristic of the output data voltages;
• and
• a timing controller configured to determine a compensation value for the video data based on the sensed characteristic of the sub-pixel,
• wherein the timing controller senses an output data voltage output by the data driver and corrects the compensation value responsive to the output data voltage being included in the second output voltages associated with a non-linear characteristic of the output voltages.