Array substrate and preparation method thereof, display panel and display device

An array substrate and substrate substrate technology, which is applied in the fields of array substrate, its preparation, display panel and display device, can solve the problems of coating film layer ripple, affecting the yield rate of the array substrate, large hole depth and size, etc. The effect of reducing and avoiding the ripple of the coating film and improving the yield

Inactive Publication Date: 2015-02-04
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an array substrate, its preparation method, a display panel and a display device, so as to solve the problems caused by the relatively large hole depth and size of the via holes

Method used

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  • Array substrate and preparation method thereof, display panel and display device
  • Array substrate and preparation method thereof, display panel and display device
  • Array substrate and preparation method thereof, display panel and display device

Examples

Experimental program
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Example Embodiment

[0064] Example one

[0065] An embodiment of the present invention provides an array substrate, including a base substrate, a gate metal layer, a gate insulating layer, an active layer, a source and drain metal layer, a passivation layer, and a common electrode layer sequentially formed on the base substrate , And a pixel electrode layer located between the active layer and the source and drain metal layer or between the source and drain metal layer and the passivation layer; the gate metal layer includes a gate electrode and a common electrode line;

[0066] The pixel electrode layer or the source and drain metal layer includes a connecting electrode, the connecting electrode is electrically connected to the common electrode line through the first via hole on the gate insulating layer, and the connecting electrode is connected to the common electrode layer through the second via hole on the passivation layer. The common electrode is electrically connected.

[0067] In the embodimen...

Example Embodiment

[0095] Example two

[0096] An embodiment of the present invention provides a display panel including the array substrate as in the above embodiment. Of course, the display panel of this embodiment may also include a color filter substrate, liquid crystal, other commonly used accessories, etc., which will not be repeated here.

[0097] The beneficial effects of the embodiments of the present invention are as follows: the pixel electrode layer or the source and drain metal layers are provided with connection electrodes, the connection electrodes are electrically connected to the common electrode line through the first via hole, and the common electrode is electrically connected to the connection electrode through the second via hole. For the electrical connection between the common electrode and the common electrode line, since the first via hole and the second via hole are respectively arranged in different layers and are electrically connected through the connection electrode, the...

Example Embodiment

[0098] Example three

[0099] An embodiment of the present invention provides a display device including the display panel as in the above embodiment. The display device of the embodiment may also include a backlight module, a frame, a base, etc., which will not be repeated here.

[0100] The beneficial effects of the embodiments of the present invention are as follows: a connecting electrode is provided between the gate insulating layer and the passivation layer of the array substrate, the connecting electrode is electrically connected to the common electrode line through the first via hole, and the common electrode is connected to the connecting electrode through the second via hole. Electrical connection to realize the electrical connection between the common electrode and the common electrode line. Since the first via hole and the second via hole are respectively arranged in different layers and are electrically connected through the connection electrode, the hole depth and siz...

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PUM

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Abstract

The invention discloses an array substrate and a preparation method thereof, a display panel and a display device so as to solve a problem that in a preparation process of the array substrate, because the hole depths and sizes of via holes which connect public electrodes and a public electrode line are comparatively large, waves are generated in a coating film layer in a follow-up preparation process so that the yield of the array substrate is affected. The array substrate includes an underlayer substrate, and a grid electrode metal layer, a grid electrode insulating layer, an active layer, a source and drain electrode metal layer, a passivation layer and a public electrode layer, which are formed sequentially on the underlayer substrate, and a pixel electrode layer located between the active layer and the source and drain electrode metal layer, or between the source and drain electrode metal layer and the passivation layer. The grid electrode metal layer includes a grid electrode and a public electrode line. The pixel electrode layer or the source and drain electrode metal layer includes a connection electrode. The connection electrode is electrically connected with the public electrode line through a first via hole in the grid electrode insulating layer. The connection electrode is electrically connected with the public electrodes of the public electrode layer through a second via hole in the passivation layer.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to an array substrate, a preparation method thereof, a display panel and a display device. Background technique [0002] Thin Film Transistor Liquid Crystal Display (TFT-LCD) is an ideal display device due to its advantages of small size, low power consumption, and no radiation. In recent years, the application range of TFT-LCD in the display field has gradually expanded, and related technologies have also developed rapidly. Among them, High aperture ratio Advanced-Super Dimensional Switching (High aperture ratio Advanced-Super Dimensional Switching, HADS) has been widely used in various display products due to its wide viewing angle and low color shift and many other advantages. [0003] Such as figure 1 As shown, the array substrate prepared by the HADS technology in the prior art includes a base substrate 1, a gate electrode 2, a common electrode line 3, a gate insulating ...

Claims

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Application Information

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IPC IPC(8): H01L27/12H01L21/77G02F1/1362G02F1/1368
CPCH01L27/124G02F1/136227G02F1/136231H01L27/1244H01L27/1248G09G2300/0426H10K59/121H10K59/123
Inventor 占红明
Owner BOE TECH GRP CO LTD
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