Display device and array substrate thereof

Abstract

The present invention provides a display device and an array substrate thereof. The array substrate comprises a plurality of thin film transistors arranged in an array; the array substrate comprises asubstrate, a first metal layer, a buffer layer, a semiconductor layer, a gate insulating layer, a second metal layer, an interlayer dielectric layer, and a third metal layer, which are sequentially disposed from bottom to top; the first metal layer is used for forming a light shielding portion and a first ground line; the first ground line is disposed around the light shielding portion; the semiconductor layer is used for forming an active layer of the thin film transistor; and the material of the semiconductor layer is low temperature polysilicon. The first metal layer of the array substrateprovided by the present invention is used for forming the light shielding portion and the first ground line; the first ground line is disposed around the light shielding portion; the first ground line is formed in the first metal layer of the array substrate, so that ESD can be effectively prevented at the early stage of the array substrate manufacturing process, thereby avoiding large amounts ofcharges from accumulation to cause explosive damage to the panel edge circuit and improving the product yield.

Description

technical field [0001] The present invention relates to the technical field of display devices, in particular to a display device and an array substrate thereof. Background technique [0002] Low-temperature polysilicon panel has become a star product in flat panel display products due to its high resolution, high mobility, low power consumption and many other advantages, and is widely used in major mobile phones such as Apple, Samsung, Huawei, Xiaomi, Meizu, etc. And on the tablet computer, due to the complex process of the low-temperature polysilicon device array process, ESD (static electricity) is more likely to be caused during the process, and a large amount of charge accumulation will cause the edge circuit of the panel to be damaged, resulting in various display defects. Contents of the invention [0003] In order to solve the above problems, the present invention provides a display device and an array substrate thereof, which can effectively protect against ESD an...

AI Technical Summary

Problems solved by technology

[0002] Low-temperature polysilicon panels have become the star products of flat panel display products due to their advantages such as high resolution, high mobility, and low power consumption, and are widely used in major mobile phones such as Apple, Samsung, Huawei, Xiaomi, and Meizu. And on the tablet computer, due to the complex process of low-temperature polysilicon device array process, it is more likely to cause ESD (static electricity) in the process, and a large amount of charge accumulation will cause the edge circuit of the panel to be damaged, resulting in various display defects.

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