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A kind of array substrate and its preparation method, display panel

An array substrate and plane technology, which is applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of light leakage of electrode lines and data lines, and achieve the effects of improving step difference, preventing light leakage, and improving picture display quality

Active Publication Date: 2021-01-26
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims at the problem of light leakage caused by the gap between the existing storage capacitor electrode lines and the data lines in the horizontal direction, and provides an array substrate, a preparation method thereof, and a display panel

Method used

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  • A kind of array substrate and its preparation method, display panel
  • A kind of array substrate and its preparation method, display panel
  • A kind of array substrate and its preparation method, display panel

Examples

Experimental program
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Embodiment 1

[0036] This embodiment provides an array substrate, such as Figure 6 As shown, it includes a substrate, the substrate is a glass substrate 100, on which storage capacitor electrode lines 121 are arranged, and an insulating layer 103 covering the storage capacitor electrode lines 121 is provided on the same layer as the insulating layer 103. The data line 151 and the light-shielding metal line 41 are insulated from each other, and the light-shielding metal line 41 is arranged on both sides of the data line 151 .

[0037]In the array substrate of this embodiment, mutually insulated data lines 151 and light-shielding metal lines 41 are arranged on the same layer on the insulating layer 103, so that even if the data lines 151 are shifted during the photolithography process, due to the existence of the light-shielding metal lines 41 Light leakage will occur; the light-shielding metal wire 41 on the insulating layer 103 is formed on both sides of the data line, which is equivalent ...

Embodiment 2

[0039] This embodiment provides an array substrate, such as Figure 7 As shown, it includes a substrate, the substrate is a glass substrate 100, two storage capacitor electrode lines 121 are arranged on the glass substrate 100, and an insulating layer 103 covering the storage capacitor electrode lines 121, the insulating layer 103 is on the same layer There are mutually insulated data lines 151 and two light-shielding metal lines 41, the two light-shielding metal lines 41 are arranged on both sides of the data line 151, the passivation layer 107 covers the data line 151 and the light-shielding metal lines 41, the passivation layer 107 A pixel electrode 108 is provided on it. Wherein, the orthographic projection of the data line 151 on the substrate has no overlapping area with the orthographic projection of the storage capacitor electrode line 121 on the substrate.

[0040] see Figure 7 For the sake of clarity, the diagrams all adopt a simplified drawing method, omit the fi...

Embodiment 3

[0053] This embodiment provides a method for preparing an array substrate, such as Figure 9 , Figure 10 Including the following preparation steps:

[0054] S01, using the glass substrate 100 as a substrate, forming storage capacitor electrode lines 121 thereon;

[0055] S02, forming an insulating layer 103 covering the storage capacitor electrode lines 121 on the substrate;

[0056] S03 , forming mutually insulated data lines 151 and light-shielding metal lines 41 on the insulating layer 103 by magnetron sputtering; wherein, the light-shielding metal lines 41 are disposed on both sides of the data line 151 .

[0057] Specifically, forming the mutually insulated data lines 151 and light-shielding metal lines 41 includes the following steps:

[0058] S03a, forming a first conductive layer 431 on the insulating layer 103; the first conductive layer 431 is a metal Al layer that is not easily etched by a dry method, and has a thickness of about 250 nm;

[0059] S03b, forming ...

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Abstract

The invention provides an array substrate, a preparation method thereof, and a display panel, which belong to the field of display technology and can solve the problem of light leakage caused by the gap between the existing storage capacitor electrode lines and data lines in the horizontal direction. In the array substrate of the present invention, mutually insulated data lines and light-shielding metal lines are arranged on the same layer on the insulating layer, so that even if the data lines are offset during the photolithography process, light leakage will not occur due to the existence of the light-shielding metal lines; The light-shielding metal lines on the layer are formed on both sides of the data line, which is equivalent to forming a stepped transition structure, which improves the level difference on both sides of the data line, facilitates the formation of a uniform alignment film, and further prevents light leakage from the parts on both sides of the data line. ; In addition, the light-shielding metal line independently exists between the pixel electrode and the storage capacitor electrode line, which can increase the size of the storage capacitor and improve the display quality of the picture. The array substrate of the present invention is suitable for various display devices.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to an array substrate, a preparation method thereof, and a display panel. Background technique [0002] With the development of display technology, liquid crystal display panel (LCD) is more and more popular due to its advantages of lightness and low radiation. The liquid crystal display panel includes a color filter substrate (CF substrate) and an array substrate (TFT substrate) opposite to each other, and a liquid crystal layer (LC layer) sandwiched between them. [0003] figure 1 is a schematic plan view of a liquid crystal display panel structure, figure 2 for figure 1 The schematic diagram of the cross-sectional structure along the AB line in the middle, image 3 for figure 1 The schematic diagram of the cross-sectional structure along the direction of line CD, the liquid crystal display panel is provided with scanning lines 112 and data lines 151 on the glas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1362
CPCG02F1/136213G02F1/136286
Inventor 宫奎段献学
Owner BOE TECH GRP CO LTD
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