Display panel and signal line repairing method thereof

Abstract

A display panel (10) and a signal line (801) repairing method thereof are provided. The repairing method includes that a repairing line (802) in a different layer from the signal line (801) is arranged; a transparent conducting layer (803) is arranged above a cross overlapping position of the repairing line (802) and the signal line (801), and a melting point of the transparent conducting layer (803) is lower than that of the signal line (801) and the repairing line (802); when a broken signal line (801) is repaired, a laser beam is used for focusing on the transparent conducting layer (803), the transparent conducting layer (803) enters a melting state so as to connect the signal line (801) and the repairing line (802). By adding the transparent conducting layer (803) with low melting point at the overlapping position of the repairing line (802) and the signal line (801), when the signal line (801) is repaired, the laser beam is focused on the transparent conducting layer (803), the transparent conducting layer (803) enters a melting state so that the repairing line (802) is connected with the signal line (801), and repairing success rate 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.

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