Display device and method of driving the same

A display device comprising:

• a display panel including pixels;
• a gate driver configured to provide a first gate signal and a second gate signal to each of the pixels;
• a data driver configured to provide a data voltage to each of the pixels;
• a power driver configured to provide a first power voltage and a second power voltage to each of the pixels;
• a sensing driver configured to,
• provide an initialization voltage to each of the pixels,
• generate first sensing data by receiving a first sensing signal related to a defect of the display panel in a first sensing period, and
• generate second sensing data by receiving a second sensing signal related to a characteristic of each of the pixels in a second sensing period;
• and
• a controller configured to,
• determine a defective coordinate of the display panel based on the first sensing data;
• and
• convert first image data into second image data based on the second sensing data and the defective coordinate, wherein
• each of the pixels includes:
• a first transistor electrically connected between a first power line that transmits the first power voltage and a first node, and includes a gate electrode electrically connected to a second node,
• a second transistor electrically connected between a data line that transmits the data voltage and the second node, and includes a gate electrode electrically connected to a first gate line that transmits the first gate signal,
• a third transistor electrically connected between a sensing line that transmits the initialization voltage and the first node, and includes a gate electrode electrically connected to a second gate line that transmits the second gate signal,
• a storage capacitor electrically connected between the first node and the second node, and
• a light emitting diode electrically connected between a second power line that transmits the second power voltage and the first node,
• in a first period in the first sensing period the data voltage having a gate-off level is applied to the second node and the initialization voltage is applied to the first node,
• in a second period in the first sensing period after the first period the first gate signal having a gate-off level is applied to the gate electrode of the second transistor and the sensing driver receives the first sensing signal through the sensing line, and
• the controller is configured to determine a coordinate of an nth pixel line to be the defective coordinate based on a difference between the first sensing data of the nth pixel line and an average of the first sensing data of an n−1th pixel line and the first sensing data of an n+1th pixel line being greater than a threshold value, n being a natural number greater than or equal to 2.

A method of driving a display device, comprising:

• generating first sensing data by receiving a first sensing signal related to a defect of a display panel including pixels, the first sensing signal being received from a first pixel among the pixels;
• generating second sensing data by receiving a second sensing signal from at least one second pixel among the pixels adjacent to the first pixel, the second sensing signal being related to a characteristic of the at least one second pixel;
• determining a defective coordinate of the display panel based on the first sensing data;
• converting first image data into second image data based on the second sensing data and the defective coordinate;
• and
• driving the first pixel based on the second image data, wherein
• the determining of the defective coordinate includes determining a coordinate of an nth pixel line to be the defective coordinate based on a difference between the first sensing data of the nth pixel line and an average of the first sensing data of an n−1th pixel line and the first sensing data of an n+1th pixel line being greater than a threshold value, n being a natural number greater than or equal to 2, and
• the converting of the first image data into the second image data includes replacing the second sensing data of the defective coordinate with an average of the second sensing data of the n−1th pixel line and the second sensing data of the n+1th pixel line.