Array substrate as well as manufacturing method and liquid crystal display panel thereof

Abstract

The invention relates to an array substrate as well as a manufacturing method and a liquid crystal display panel thereof. A groove is formed on a passivation layer of the array substrate and correspondingly formed between two adjacent pixel electrodes; and the depth of the groove is less than that of the passivation layer. The method comprises the following steps of: forming patterns with a plurality of film layers on the substrate; forming the passivation layer on the substrate with the plurality of film layers forming; forming a passivation layer through hole and the groove on the passivation layer; depositing a transparent conducting film layer on the passivation layer with the groove forming; and forming a plurality of pixel electrodes in a matrix mode by adopting a mapping process. The liquid crystal display panel comprises the array substrate. In the invention, the groove is formed on the passivation layer beyond the pixel electrode area, therefore, a pixel electrode material layer can form a faultage at the edge of the groove, and the connected short-circuit between the adjacent pixel electrodes is reduced or avoided, thereby improving the finished product ratio.

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 panel. Background technique [0002] Liquid crystal displays play an important role in flat panel displays, and a thin film transistor liquid crystal display (Thin Film Transistor-Liquid Crystal Display; hereinafter referred to as TFT-LCD) is a widely used liquid crystal display. [0003] The liquid crystal panel of TFT-LCD is composed of an array substrate and a color film substrate. figure 1 It is a partial top view structure schematic diagram of a thin film transistor liquid crystal display array substrate in the prior art, figure 2 for figure 1 A-A in the sectional view. Such as figure 1 with figure 2 As shown, a typical TFT-LCD array substrate structure mainly includes: a base substrate 1; the pattern of the gate electrode 4 and the gate scanning line 2 is formed on the base substrate 1, and t...

AI Technical Summary

Problems solved by technology

Residual ITO may cause adjacent pixel electrodes to be connected and short-circuited, and appear on the liquid crystal display as a defect of bright or dark spots. If there is a large area of ​​residual ITO, there may be a "group glow" phenomenon in which multiple bright spots are connected together. , making the product obsolete

In the prior art, it is generally possible to reduce the occurrence probability of ITO residues by adjusting the process parameters in the process, but it cannot effectively solve the adverse effects caused by ITO residues, especially the smaller intervals between pixel electrodes are affected by ITO residues. The impact is more significant

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