Array substrate and method for repairing disconnection thereof

Abstract

The invention discloses an array substrate and a broken line repair method thereof. When a gate line (20) of the array substrate is broken, the broken line repair method comprises the steps of removing a pixel electrode layer (80), a second passivation layer (70) and an organic layer (60) of the array substrate; forming an insulation protective layer (90) on a first passivation layer (50) of the array substrate; forming a long metal line (100) on the insulation protective layer (90), wherein one end of the long metal line (100) is connected with the gate line (20) at one side of a broken line part, and the other end of the long metal line (100) is connected with the gate line (20) at the other side of the broken line part. According to the broken line repair method, the insulation protective layer is formed on the first passivation layer, and the long metal line is then formed on the insulation protective layer for connecting and repairing the broken gate line, so that the long metal line is prevented from being contacted with a data line under the first passivation layer, and a phenomenon of short circuit between the data line and the gate line is further avoided.

Description

technical field [0001] The invention belongs to the field of liquid crystal display panel manufacturing, and in particular relates to an array substrate used for a liquid crystal display panel and a method for repairing a disconnection thereof. Background technique [0002] With the evolution of optoelectronics and semiconductor technology, it also drives the vigorous development of Flat Panel Displays. Among many flat panel displays, Liquid Crystal Displays (LCD) have high space utilization efficiency, low power consumption, Many superior characteristics such as no radiation and low electromagnetic interference have been applied in all aspects of production and life. [0003] Most of the existing liquid crystal displays are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to place liquid crystal molecules between two parallel glass substrates. There are many ...

AI Technical Summary

Problems solved by technology

During the fabrication process of the array substrate, due to the influence of various factors, there may be disconnection of metal wires including gate lines and data lines

In order to repair the disconnection of this type of array substrate, at present, the organic layer and the pixel electrode layer are first removed by a disconnection repair machine, and then the long line is repaired. When the organic layer is completely removed, the passivation layer under the organic layer may be damaged. Layer removal part, thereby exposing the data line under the passivation layer, so that when the long line repair is performed on the broken gate line, the formed metal repair long line connects the broken gate line and contacts the exposed data line at the same time , so that the gate line and the data line are short-circuited, which affects the success rate of product disconnection repair

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