Display device and method of driving the same

A display device comprising:

• a plurality of pixels coupled to data lines and sensing lines;
• a data driver configured to supply one of an image data signal and a sensing data signal to the data lines;
• a voltage supply configured to supply an initialization voltage to the pixels through the sensing lines;
• and
• a sensing circuit configured to receive an analog sensing value from at least one of the pixels through the sensing lines, to convert the analog sensing value to a digital sensing code, to compare the digital sensing code with a maximum sensing code or a minimum sensing code to generate a sensing voltage control signal to control at least one of the sensing data signal or the initialization voltage based on a value of the comparing.

A method of driving a display device including a plurality of pixels coupled to data lines and sensing lines and driven to have a display period for displaying an image and a sensing period for sensing characteristics of a driving transistor included in each of the pixels, the method comprising:

• supplying a sensing data signal to the data line and an initialization voltage to the sensing lines in the sensing period;
• receiving an analog sensing value from at least one of the pixels through the sensing lines;
• and
• comparing the analog sensing value with a sensing reference voltage to generate a sensing voltage control signal to control at least one of the sensing data signal or the initialization voltage.