Patent ID: 7358534

Claim:
A method for repairing broken signal lines at a thin film transistor (TFT) array substrate that comprises an insulating substrate including a display area and a peripheral area surrounding the display area, the peripheral area including a first peripheral region arranged along a first edge of the display area and a second peripheral region arranged along a second edge of the display area; a plurality of signal lines formed on the insulating substrate and divided into a plurality of blocks, each block including a predetermined number of signal lines; a plurality of first repair lines formed in the first peripheral region, each crossing the signal lines of not all of the plurality of blocks; a second repair line formed in the first peripheral region and crossing all of the plurality of signal lines; a plurality of third repair lines formed in the second peripheral region and connected to the first repair lines corresponding thereto, each third repair line crossing the signal lines crossed by the corresponding first repair line; a fourth repair line formed in the second peripheral region and crossing all of the plurality of signal lines; a plurality of first connection members, each crossing the first repair line and the second repair line; a plurality of second connection members, each crossing the third repair line and the fourth repair line; and a plurality of first interconnection lines, each interconnecting the first repair line and the third repair line corresponding thereto, comprising: shorting one of the first repair lines and a first broken signal line; and shorting one of the third repair lines and the first broken signal line.