Patent ID: 7990356

Claim:
A flat panel display, comprising: a display panel that includes a plurality of data lines and a plurality of scan lines that cross each other; a plurality of pixels, wherein a defective pixel is electrically connected to a normal pixel that is adjacent; a plurality of switch devices formed at an area defined by an intersection between the data lines and the scan lines to supply a data signal from the data line to pixels that includes the link pixel; a memory that stores a location data that indicates a location of a link pixel and a compensation data that compensates for a charging characteristics of the link pixel; and a compensation circuit that modulates a input digital video data to be displayed on the link pixel on the basis of the location data and the compensation data, wherein the link pixel includes the normal pixel adjacently with the defective pixel, the normal pixel displays the same color as a color displayed by the defective pixel, wherein the compensation circuit compensates a charging characteristics of the link pixel on the basis of the location data stored in the memory, the compensation circuit varies a compensation data at the input digital video data corresponding to the location of the link pixel to modulate the input digital video data, wherein the compensation circuit includes a location judging part, a gray scale level judging part, an address generator and a calculator, wherein the calculator includes a multiplier or a divider which multiplies the charge compensation data to or divides the charging compensation data from the input digital video data other than an adder and a subtractor, wherein the link pixel further includes a link pattern that overlaps with a first pixel electrode of the defective pixel and a second pixel electrode of the normal pixel adjacently with thereof with having a protective film therebetween, wherein the link pattern is disposed on a pixel electrode of the defective pixel and a pixel electrode of the normal pixel having the same color adjacently with thereof, wherein both edges of the link pattern overlap with the pixel electrodes of the defective and normal pixels adjacently in the vertical direction to directly connect to the pixel electrodes of the defective and normal pixels in a laser welding process, and wherein the first and second pixel electrodes include an extending portion extended from the edge of an upper portion, and overlap with an edge of the link pattern by the extending portion.