Array substrate, manufacturing method thereof and display device

Abstract

The invention provides an array substrate, a manufacturing method thereof and a display device. The manufacturing method includes the step of arranging a plurality of detection pixel units on a substrate. The manufacturing method of the detection pixel units includes the steps: forming at least two data lines and forming a buffer layer on the data lines; forming an organic film with via holes on the buffer layer; partially overlapping the via holes with the orthographic projection of two adjacent data lines on the substrate; forming a first conductive layer on the organic film. When forming ofthe buffer layer fails, the first conductive layer is in short connection with the adjacent data lines through the via holes. According to the array substrate, the manufacturing method thereof and the display device, the via holes covering the adjacent data lines are formed in the organic film, so that the first conductive layer can be in short connection with the adjacent data lines through thevia holes when forming of the buffer layer fails, short-circuit signals of the adjacent data lines are detected in array detection, the problem of deficiency of the buffer layer is detected, and quality risk hidden danger of products is avoided.

Description

technical field [0001] The present application relates to the field of display technology, in particular to an array substrate, a manufacturing method thereof, and a display device. Background technique [0002] The use of organic film technology can effectively reduce the coupling capacitance between the data line and the common electrode, increase the aperture ratio of the product, thereby reducing the power consumption of the thin film transistor liquid crystal display, and has been widely used in recent years. However, the organic film may decompose during use and pollute its adjacent film layer structure. In order to solve this problem, a buffer layer is generally placed under the organic film, but the buffer layer is not formed due to abnormal equipment or process errors. , it will cause the quality risk of the product, therefore, it is necessary to detect the defects of the missing buffer layer in time. Contents of the invention [0003] In view of the above-mentio...

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Problems solved by technology

However, the organic film may decompose during use and pollute its adjacent film layer structure. In order to solve this problem, a buffer layer is generally placed under the organic film, but the buffer layer is not formed due to abnormal equipment or process errors. , it will cause product quality risk, therefore, it is necessary to detect the defect of missing buffer layer in time

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