Array substrate and its manufacturing method and In Cell touch control display panel

Abstract

The invention provides an array substrate and its manufacturing method and an In Cell touch control display panel. According to the array substrate, a first flat layer, a touch control signal layer, a second flat layer, a common electrode, a passivation layer and a pixel electrode are sequentially formed on a source / drain electrode, a data line and a third insulating layer, in the structure, the touch control signal layer is located below the second flat layer, the situation that bulges form in the region, corresponding to the touch control signal layer, on the surface of the array substrate does not occur, the surface of the array substrate is relatively flat, the situation that sliding of a spacer causes the collapse of a liquid crystal box or the scratch of an alignment film can be avoided, and the displaying quality is improved; at the same time, three passivation layers in an existing array substrate are reduced to one passivation layer, the manufacture procedure is thus simplified, and the manufacturing cost is reduced. According to the manufacturing method of the array substrate, the surface of the prepared array substrate is flat, the manufacture procedure is simple, and the manufacturing cost is low. The In Cell touch control display panel is good in displaying quality and low in production cost.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an array substrate, a manufacturing method thereof, and an In Cell touch display panel. Background technique [0002] With the rapid development of display technology, touch display panels have been widely accepted and used by people, for example, smart phones, tablet computers, etc. all use touch display panels. The touch display panel adopts embedded touch technology to integrate the touch panel and the liquid crystal display panel, and embeds the function of the touch panel into the liquid crystal display panel, so that the liquid crystal display panel has the functions of displaying and sensing touch input at the same time. According to different structures, the touch display panel can be divided into a type in which the touch electrodes are covered on the liquid crystal cell (On Cell), a type in which the touch electrodes are embedded in the liquid crystal cell (In Cell), a...

AI Technical Summary

Problems solved by technology

[0014] It can be seen from the structure of the array substrate 100 and its manufacturing method that since the array substrate 100 contains a total of three passivation layers of the first passivation layer 810, the second passivation layer 820, and the third passivation layer 830, layers, making the manufacturing process complicated and the manufacturing cost higher;

[0015] In addition, since the touch signal layer 600 is relatively thick and is located on the flat layer 500 , the area on the surface of the array substrate 100 corresponding to the touch signal layer 600 will have bumps 101 , but limited by space, This area is generally the contact area between the spacer 250 and the array substrate 100 , so when the array substrate 100 and the color filter substrate 200 are shifted or slipped, the spacer 250 can easily slip below the protrusion 101 , it is easy to cause the thickness of the liquid crystal box (Cell Gap) to change, causing poor display; and when the spacer 250 slides, it is easy to cause scratches on the alignment film (not shown) in this area, resulting in small broken bright spots, affecting the panel ( Panel) display quality

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