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Display substrate, manufacturing method thereof, display panel, and display device

A display substrate and a display panel technology are applied in the fields of display panels, display devices, display substrates and manufacturing methods thereof, and can solve the problems of the influence of the yield rate of display devices, the large step difference at the via holes of the film layer, etc., so as to avoid the liquid sealing effect, Good film quality, good for continuity and uniformity

Active Publication Date: 2021-04-27
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a display substrate and its manufacturing method, a display panel, and a display device, which are used to solve the problem that in the existing display devices, the step difference at the via hole of the film layer is relatively large, which easily affects the yield rate of the display device The problem

Method used

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  • Display substrate, manufacturing method thereof, display panel, and display device
  • Display substrate, manufacturing method thereof, display panel, and display device
  • Display substrate, manufacturing method thereof, display panel, and display device

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Embodiment Construction

[0039] In order to further illustrate the display substrate and the manufacturing method thereof, the display panel, and the display device provided by the embodiments of the present invention, a detailed description will be given below in conjunction with the accompanying drawings.

[0040] As mentioned in the background technology, the existing display substrates generally include a thicker film layer. When the film layer via holes are formed in the film layer, such as figure 1 The film layer via hole whose size is a×b shown in , will have the following problems:

[0041] 1. The via hole size of the film layer is limited.

[0042] 2. The depth of the via hole in the film layer is relatively large, and other film layers formed in the via hole of the film layer are prone to breakage, or the uniformity of the film layer is poor.

[0043] In more detail, as figure 2 and image 3 As shown, exemplary, the display substrate includes: a base substrate 1, and a first insulating l...

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Abstract

The invention discloses a display substrate and a manufacturing method thereof, a display panel, and a display device, and relates to the field of display technology. In order to solve the problem that in existing display devices, the step difference at the through hole of the film layer is relatively large, it is easy to affect the yield rate of the display device. impact issues. The above-mentioned display substrate includes a functional layer, and the functional layer is provided with a film layer via hole, and the film layer via hole includes at least two sub-via holes connected in sequence, extending from the base substrate away from the display substrate to the In the direction of the base substrate, the diameters of the at least two sub-vias are sequentially reduced, and steps are formed between adjacent sub-vias. The display substrate provided by the invention is used in a display panel.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display substrate and a manufacturing method thereof, a display panel, and a display device. Background technique [0002] At present, in order to ensure the working performance of the display device, a planarization layer for leveling the in-plane level difference caused by various layer patterns on the substrate is generally produced in the display device, but due to the thick thickness of the planarization layer, When making a via hole on the planarization layer, a large step difference will be generated at the via hole, so that when other film layers are made on the planarization layer, other film layers are easy to break at the via hole, which will affect the display device. yield rate. Contents of the invention [0003] The purpose of the present invention is to provide a display substrate and its manufacturing method, a display panel, and a display device, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/00
CPCG09F9/00
Inventor 陈丽雯王文超徐姗姗唐金波
Owner BOE TECH GRP CO LTD