Display device and method of driving the same

A method of driving a display device, the method comprising:

• generating a source output enable signal and a first gate output enable signal in synchronization with a data enable signal modulated according to a spread frequency clock signal through a first control signal generation unit;
• starting a counting of a number of clocks of a fixed-frequency clock signal at a point of time at which a logic high state of the source output enable signal ends, and outputting a second gate output enable signal when the counted number of the clocks becomes equal to a reference value, through a second control signal generation unit, wherein the fixed-frequency clock signal is generated by a clock signal generation unit that is not influenced by the spread frequency clock signal;
• outputting the first gate output enable signal as a gate output enable signal when a status of a current frame is judged to be abnormal under which a charging time of a horizontal line overlaps an output time of image data of a next horizontal line if the second gate output enable signal is applied in the current frame, and outputting the second gate output enable signal as a gate output enable signal when a status of the current frame is judged to be normal under which the charging time of the horizontal line does not overlap the output time of image data of the next horizontal line if the second gate output enable signal is applied in the current frame, through an output control unit;
• and
• controlling an outputting of a gate signal from a gate driving unit to a display panel using the second gate output enable signal.

A display device comprising:

• a display panel including gate and data lines that cross each other;
• a first control signal generation unit that generates a source output enable signal and a first gate output enable signal in synchronization with a data enable signal modulated according to a spread frequency clock signal;
• a second control signal generation unit that starts to count a number of clocks of a fixed-frequency clock signal at a point of time at which a logic high state of the source output enable signal ends, and outputs a second gate output enable signal when the counted number of the clocks becomes equal to a reference value;
• an output control unit that outputs the first gate output enable signal as a gate output enable signal when a status of a current frame is judged to be abnormal under which a charging time of a horizontal line overlaps an output time of image data of a next horizontal line if the second gate output enable signal is applied in the current frame, and outputs the second gate output enable signal as a gate output enable signal when a status of the current frame is judged to be normal under which the charging time of the horizontal line does not overlap the output time of image data of the next horizontal line if the second gate output enable signal is applied in the current frame;
• and
• a gate driving unit that controls an outputting of a gate signal to the gate line using the gate output enable signal output from the output control unit.

A method of driving a display device, comprising:

• generating a source output enable signal and a first gate output enable signal in synchronization with a data enable signal modulated according to a spread frequency clock signal through a first control signal generation unit;
• starting a counting of a number of clocks of a fixed-frequency clock signal at a point of time at which a logic high state of the source output enable signal ends, and outputting a second gate output enable signal when the counted number of the clocks becomes equal to a reference value, through a second control signal generation unit;
• outputting the first gate output enable signal as a gate output enable signal when a status of a current frame is judged to be abnormal under which a charging time of a horizontal line overlaps an output time of image data of a next horizontal line if the second gate output enable signal is applied in the current frame, and outputting the second gate output enable signal as a gate output enable signal when a status of the current frame is judged to be normal under which the charging time of the horizontal line does not overlap the output time of image data of the next horizontal line if the second gate output enable signal is applied in the current frame, through an output control unit;
• and
• controlling an outputting of a gate signal from a gate driving unit to a display panel using the gate output enable signal from the output control unit.