Display panel and signal line repairing method thereof

Abstract

The invention provides a display panel and a signal line repairing method thereof. The signal line repairing method of the display panel includes that a repairing line in a different layer from the signal line is arranged, a transparent electric conducting layer is arranged above a cross overlapping position of the repairing line and the signal line, and a melting point of the transparent electric conducting layer is lower than that of the signal line and the repairing line. When a fractured signal line is repaired, a laser beam is used for focusing the transparent electric conducting layer, the transparent electric conducting layer enters a melting state so as to connect the signal line and the repairing line. By adding the transparent electric conducting layer with low melting point at the overlapping position of the repairing line and the signal line, when the signal line is repaired, users only need to focus the laser beam on the transparent electric conducting layer and enable the transparent electric conducting layer to enter a melting state, so that the repairing line is connected with the signal line, and rate of repairing success is increased.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a repair method for a display panel and a signal line thereof. Background technique [0002] The liquid crystal display device includes an array substrate, a color filter substrate and a liquid crystal layer filled between the two substrates. Wherein, a large number of signal lines (such as scanning lines and data lines) are arranged on the array substrate. However, in the production process, a large number of signal lines will always be disconnected due to some production defects. At this time, the pixel electrodes on the disconnected lines cannot get normal data signals, thus forming display defects of the LCD panel. Defects are considered to be repaired in order to reduce production costs. [0003] In the current repair method, the repair line and the normal signal line are usually set on different layers, and the two overlap. When repairing a broken signal line, a laser b...

AI Technical Summary

Problems solved by technology

However, the energy of the laser beam will gradually decrease with the time of use. When the energy decreases to a certain level, it is easy to fail to effectively melt the signal line and the repair line, resulting in repair failure or excessive interface impedance at the intersection.

Images