Array substrate, manufacturing method thereof and display device

Abstract

The invention discloses an array substrate, a manufacturing method thereof and a display device, and belongs to the field of display. The array substrate includes a substrate, a first metal layer, a second metal layer, and a third metal layer, wherein the first metal layer, the second metal layer and the third metal layer are disposed on the substrate; the array substrate is divided into a displayarea and a peripheral area; the peripheral area of the array substrate is provided with a plurality of signal line leads, one part of the plurality of signal line leads are located at the first metallayer, another part of the plurality of signal line leads are located in at least one layer of the third metal layer and the second metal layer, the first metal layer includes a shading layer locatedat the display area, the second metal layer comprises a gate layer located at the display area, and the third metal layer includes a source and drain layer located at the display area. In the case where the peripheral area is small, the wiring congestion of the signal line leads is alleviated, the signal line lead pitch is increased, a short circuit risk is lowered, and the signal line leads canbe designed to be thicker due to the reduced wiring congestion, thereby avoiding the open circuit risk of the signal line leads.

Description

technical field [0001] The invention relates to the field of displays, in particular to an array substrate, a manufacturing method thereof, and a display device. Background technique [0002] With the development of liquid crystal displays, products with high PPI (Pixels Per Inch, pixels per inch), high resolution, and high screen-to-body ratio are favored by more and more consumers. [0003] However, with the continuous improvement of PPI, resolution, and screen-to-body ratio, the number of signal lines (such as data lines and gate lines) in the display area of ​​the liquid crystal display will increase. Correspondingly, the number of signal wire leads located in the peripheral area (or fan-out (Fan-out) area) of the liquid crystal display screen will also increase. The function of the signal wire leads is to connect the signal wires to the integrated circuit. [0004] Among them, the signal line leads are arranged in the source and drain layers of the peripheral area. Due...

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Problems solved by technology

[0005] Embodiments of the present invention provide an array substrate, a manufacturing method thereof, and a display device, so as to alleviate the problem of overcrowded wiring of signal lines in the prior art

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