Display device having noise reduction function and noise reduction method

A noise reduction method, comprising:

• receiving image data from the outside;
• verifying whether an image pattern of the received image data corresponds to one of a plurality of stored image patterns;
• and
• changing an inversion method to one of a plurality of inversion methods based on the verified image pattern.

A display device, comprising:

• a display panel to display images;
• a data driver to provide data voltages to the display panel;
• a gate driver to provide gate voltage to the display panel;
• and
• a signal controller controlling the data driver and the gate driver,
• wherein the signal controller stores a plurality of image patterns and corresponding inversion driving methods,
• wherein the signal controller is configured to compare a source image pattern of input image data with the plurality of image patterns, select one of the inversion driving methods based on a result of the comparison, and drive the data driver based on the selected inversion driving method.