Thin film transistor panels for liquid crystal displays

Abstract

Disclosed are ring-shaped gate wires and redundancy lines formed on a substrate so that defects due to disconnection of data lines can be readily repaired. The redundancy line is formed in a unit of a pixel, located outside the gate wire and divided into two portions. A gate insulating film is formed thereon, and data lines are formed thereon. Each of the data line overlaps the redundancy line and intersects a portion of the gate wire. A passivation film is formed on the data lines and transparent conductive connect patterns are formed thereon. The transparent connect pattern intersects two adjacent pixels and overlaps the ends of the redundancy lines facing each other. Since the end portions of the redundancy lines are bent out from the direction of the data line, it is not required that the connect pattern overlaps the data line. When the data line is disconnected on the step point where the data line intersects the gate wire, the redundancy lines can be short-circuited to the data line on either side of the disconnection point by using a laser to repair the disconnection.