Flat panel display and method of controlling picture quality thereof

A flat panel display device, comprising:

• a display panel which has a non-defect area and a panel defect area and has at least one link pixel where adjacent pixels are linked to each other;
• a memory which stores a first compensation data for compensating data to be displayed at the panel defect area, a second compensation data for compensating data to be displayed at a boundary part between the panel defect area and the non-defect area, and a third compensation data for compensating data to be displayed at the link pixel;
• a first compensation part which calculates brightness information from red, green and blue data included in the data to be displayed at the panel defect area, and modulates the brightness information with the first compensation data, thereby modulating the data to be displayed at the panel defect area;
• a second compensation part which disperses the second compensation data to the boundary part to modulate the data to be displayed at the boundary part;
• a third compensation part which modulates the data to be displayed at the link pixel with the third compensation data;
• and
• a driver for driving the display panel in use of the data modulated by the first to third compensation parts.