A liquid crystal display array substrate and manufacturing method thereof

Abstract

A liquid crystal display array substrate and manufacturing method, the array substrate comprising: first gate lines arranged on the substrate in parallel, and used to transmit scanning signals to a display panel; data lines arranged on different layers of the substrate from the first gate lines, and perpendicular to the first gate lines, used to transmit a source electrode drive signal to the display panel; a common electrode bus (101) having a framework structure, and an outlet line (103) extending from the common electrode bus (101); and a common electrode branch line (102) intersecting with the common electrode bus (101). A switch element is disposed at the intersection of the branch line (102) and the bus (101), and is used to maintain the disconnected state of the branch line (102) and the bus (101) in the manufacturing stage of the array substrate. The design increases the possibility of detecting disconnection of a meshed common electrode line in an array manufacturing process, improving the good product rate and saving costs.

Description

technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to a liquid crystal display array substrate and a manufacturing method. Background technique [0002] In today's flat panel display technology, liquid crystal display (LCD) can be said to be the most mature technology, especially TFT-LCD. The liquid crystal display includes array substrates designed in a matrix form, and driving circuits for driving these array substrates. The deflection of liquid crystal molecules is realized through the change of the electric field in the liquid crystal cell, so as to achieve the display effect. [0003] With the development of semiconductor technology, the size of TFT devices is getting smaller and smaller, and the resolution of LCD is getting higher and higher, so the metal line width is required to be narrower and narrower. For the current technology level, the direct risk of narrowing the line width is short circuit and open c...

AI Technical Summary

Problems solved by technology

Difficult to detect when open and short defects occur

Especially when an open circuit occurs, the voltage of each point on the common electrode line is basically the same, so in the substrate array process technology, it is easy to ignore such defects, and put the leakage into the LCD screen manufacturing project and module assembly project

This kind of defect is not repaired in time, and it is easy to cause line defects such as horizontal and light lines in the subsequent process.

However, once the faulty wiring occurs in the LCD screen production process and module assembly process, it will be difficult to repair, and it can only be scrapped or downgraded for shipment.

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