Array substrate, manufacturing method thereof, and display device

Abstract

The embodiment of the invention discloses an array substrate, a manufacturing method thereof and a display device, relates to the field of liquid crystal display, and aims to effectively reduce the problem of electrostatic breakdown during the manufacture process of TFT array substrates. The array substrate disclosed in the embodiment of the invention comprises a common electrode bus and a plurality of common electrode lines which are arranged in parallel to one another. The array substrate is characterized in that the common electrode bus comprises a plurality of spaced gate metal segments and a plurality of spaced source / drain metal segments; the source / drain metal segments correspond to the gaps between the gate metal segments; the gate metal segments and the source / drain metal segments are spaced through a first insulating layer; and the gate metal segments and the source / drain metal segments, which are adjacent correspondingly, are electrically connected through vias.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to an array substrate, a manufacturing method thereof, and a display device. Background technique [0002] With the continuous development of electronic technology, liquid crystal displays have been widely used in various display fields. Thin Film Transistor (ThinFilmTransistor, TFT) array substrate is an important part of liquid crystal display. Such as figure 1 As shown, the common electrode of the TFT array substrate is usually divided into two parts, the common electrode line in a network matrix located in the active area (ActiveArea, AA) area (the dotted line frame in the figure), and the common electrode bus line located outside the AA area, The common electrode bus is usually a continuous large-area metal 11, and is connected to the common electrode lines in the AA area. Since the common electrode part formed by the large-area metal 11 is a common source of electrosta...

AI Technical Summary

Problems solved by technology

Since the common electrode part formed by the large-area metal 11 is a common source of electrostatic breakdown in the manufacturing process of the TFT array substrate, and as the size of the glass substrate increases, the area of ​​the metal 11 outside the AA area is also increasing, that is, Easier to accumulate charge, causing electrostatic breakdown

[0003] In order to prevent the occurrence of electrostatic breakdown, in the prior art, a short circuit 12 will be added in the circuit design of the common electrode, such as figure 1 shown, but this design can only produce electrostatic protection after the circuit is formed, that is, it can only play the role of electrostatic protection during the use of the liquid crystal display device, and still does not solve the problem of electrostatic breakdown in the manufacturing process of the TFT array substrate

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