Array substrate and method for manufacturing same and liquid crystal display

Abstract

The invention discloses an array substrate and a method for manufacturing the same and a liquid crystal display. The method for manufacturing the array substrate comprises the steps of forming conductive patterns and an insulating layer on a substrate base plate, wherein the conductive patterns at least comprise a grid line, a grid electrode, an active layer, a source electrode, a drain electrode, a data line, a pixel electrode and public electrodes, the public electrodes on the array substrate are communicated through a public electrode connecting line, and a blocking block and a blocking groove are arranged between the public electrode connecting line and the pixel electrode. The blocking block and the blocking groove are formed according to the following steps of: forming patterns containing the blocking block on the substrate base plate formed with the grid line, the public electrodes, the grid electrode and the insulating layer by a patterning process; and forming patterns containing the blocking groove on the substrate base plate formed with the patterns by the patterning process. With the adoption of the array substrate and the method for manufacturing the same, the problem of short circuit of the pixel electrode and the public electrodes caused by material residue of the pixel electrode can be solved, and the qualified rate is improved.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to an array substrate, a manufacturing method thereof and a liquid crystal display. Background technique [0002] A liquid crystal display is a commonly used flat panel display at present, and a thin film transistor liquid crystal display (ThinFilm Transistor Liquid Crystal Display, TFT-LCD for short) is a mainstream product in the liquid crystal display. [0003] Figure 1A It is a partial top view structural schematic diagram of an array substrate of an existing TFT-LCD, Figure 1B for Figure 1A The schematic diagram of the side view section structure along the A-A line, such as Figure 1A and Figure 1B As shown, the array substrate of the TFT-LCD includes a base substrate 1; the base substrate 1 is formed with data lines 5 and gate lines 2 that intersect horizontally and vertically; the data lines 5 and gate lines 2 surround pixel units arranged in a matrix form ; Each pix...

AI Technical Summary

Problems solved by technology

[0004] During the etching process, the material residue of the pixel electrode is likely to occur between the common electrode connection line 14 and the pixel electrode 11, resulting in a short circuit between the pixel electrode 11 and the common electrode 12, causing TFT-LCD display failure

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