Unit for driving a display, operating method thereof, and display device

A method of driving a display, the method comprising:

• supplying a gate signal to a gate line of a display panel through at least one of a first gate driving buffer and a second gate driving buffer;
• generating a first signal for controlling at least one of the first gate driving buffer and the second gate driving buffer based on an output signal of the second gate driving buffer supplied to the gate line, through a first comparison circuit;
• and
• generating a second signal for controlling at least one of the first gate driving buffer and the second gate driving buffer based on an output signal of the first gate driving buffer supplied to the gate line, through a second comparison circuit,
• wherein the first signal is generated by the first comparison circuit when a comparison of the output signal of the second gate driving buffer and a first reference signal from the first gate driving buffer indicates that the second gate driving buffer is in an abnormal state, and
• wherein the second signal is generated by the second comparison circuit when a comparison of the output signal of the first gate driving buffer and a second reference signal from the second gate driving buffer indicates that the first gate driving buffer is in an abnormal state.

A display device comprising:

• a display panel comprising a pixel array including pixels, and a gate line for providing a voltage to a row of the pixels;
• a first gate driving buffer configured to supply a first gate signal to the gate line of the display panel;
• a second gate driving buffer configured to supply a second gate signal to the gate line;
• a first comparison circuit configured to generate a first signal for controlling at least one of the first gate driving buffer and the second gate driving buffer based on an output signal of the second gate driving buffer when a comparison of the output signal of the second gate driving buffer and a first reference signal from the first gate driving buffer indicates that the second gate driving buffer is in an abnormal state;
• and
• a second comparison circuit configured to generate a second signal for controlling at least one of the first gate driving buffer and the second gate driving buffer based on an output signal of the first gate driving buffer when a comparison of the output signal of the first gate driving buffer and a second reference signal from the second gate driving buffer indicates that the first gate driving buffer is in an abnormal state.