Flat display apparatus, fabricating method, picture quality controlling method and apparatus thereof

A fabricating method of a flat panel display device, comprising:

• applying test data to the flat panel display device;
• identifying the presence of a defective pixel on the flat panel display device by detecting a difference in brightness of a panel area containing the defective pixel and a normal panel area;
• forming a link pixel by electrically connecting an identified defective pixel to a normal pixel adjacent to the identified defective pixel, wherein the normal pixel adjacent to the identified defective pixel is a pixel of the same color as the identified defective pixel;
• determining first location data that describes a location of a panel defect area, calculating a panel defect compensation data for compensating a brightness of the panel defect area, determining second location data that describes a location of the link pixel, and calculating a charge characteristic compensation data for compensating a charge characteristic of the link pixel;
• and
• storing the first and second location data the panel defect compensation data and the charge compensation data in a data modulation memory of the flat panel display device.

A picture quality controlling method of a flat panel display device, comprising:

• forming a link pixel by electrically connecting to a defective pixel to a normal pixel adjacent thereto in a display panel of a flat panel display device, wherein the normal pixel adjacent to the defective pixel is a pixel of the same color as the defective pixel;
• determining first location data describing the location of a panel defect area having a brightness difference in comparison with a normal area, a panel defect compensation data for compensating a brightness to be displayed at the panel defect area, second location data describing a location of the link pixel, and a charge characteristic compensation data for compensating a charge characteristic of the link pixel;
• storing the location data and the compensation data in a data modulation memory of the flat panel display;
• and
• modulating data to be displayed at the panel defect area with a frame rate control dithering method and modulating a charge characteristic of the digital video data to be displayed at the link pixel, by use of the first and second location data and the panel defect and charge compensation data stored in the data modulation memory,
• wherein modulating the digital video data includes:
• temporally sub-dividing the panel defect compensation data over a number of frames in a unit of frames and to spatially sub-dividing the panel defect compensation data over a number of adjacent pixels, and increasing or decreasing data to be displayed at the panel defect area by the temporally sub-divided panel defect compensation data and the spatially sub-divided panel defect compensation data.

A picture quality controlling apparatus of a flat panel display device, comprising;

• a memory to store first location data describing a location of a link pixel formed by electrically connecting to a defective pixel to a normal pixel adjacent thereto in a display panel of the flat panel display device, a charge characteristic compensation data for compensating a charge characteristic of the link pixel, second location data describing the location of a panel defect area having a brightness difference in comparison with a normal area which is displayed with a normal brightness in the display panel, and a compensation data for the panel defect area, wherein the normal pixel adjacent to the defective pixel is a pixel of the same color as the defective pixel;
• a first compensating part to sub-divide the panel defect compensation data with a frame rate control dithering method and to modulate the data to be displayed at the panel defect area using the sub-divided panel defect compensation data;
• and
• a second compensating part to modulate the data to be displayed at the link pixel among data output by the first compensating part with the charge characteristic compensation data,
• wherein the first compensating part temporally sub-divides the panel defect compensation data over a number of frames in a unit of frames and spatially sub-divides the panel defect compensation data over a number of adjacent pixels, and increases or decreases the data to be displayed at the panel defect area by the temporally sub-divided panel defect compensation data and the spatially sub-divided the panel defect compensation data.