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Display substrate, preparation method thereof, and display device

A technology for display substrates and display areas, which is applied in semiconductor/solid-state device manufacturing, electrical components, electric solid-state devices, etc. It can solve the problems of high production cost, difficult design, and difficult process realization, so as to ensure effectiveness and reliability , to achieve the effect of full screen and borderless screen, good application prospects

Active Publication Date: 2019-08-13
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the embodiments of the present invention is to provide a display substrate and its preparation method, and a display device, so as to solve the problems of difficult design, high manufacturing cost, and difficult process realization existing in existing packaging solutions.

Method used

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  • Display substrate, preparation method thereof, and display device
  • Display substrate, preparation method thereof, and display device
  • Display substrate, preparation method thereof, and display device

Examples

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no. 1 example

[0061] figure 1 It is a schematic diagram showing the structure of the first embodiment of the substrate of the present invention, figure 2 for figure 1 The cross-sectional view in the direction of A-A in the middle shows the structures of the display area, packaging area and mounting holes on a plane perpendicular to the display substrate. Such as figure 1 As shown, on a plane parallel to the display substrate, the main structure of the display substrate includes a display area 100, a packaging area 200 and a mounting hole 300, the mounting hole 300 is located in the display area 100, and the packaging area 200 is located between the display area 100 and the mounting hole 300 Between is an annular area surrounding the installation hole 300 . The position of the mounting hole 300 in the display area 100 is not limited, and the shape is not limited, it can be figure 1 The circle shown in , can also be other polygons such as ellipse or square, rhombus.

[0062] Such as f...

no. 2 example

[0090] Figure 16 It is a schematic structural diagram of the second embodiment of the display substrate of the present invention, showing the structures of the display area, packaging area and mounting holes on a plane perpendicular to the display substrate. The main structure of the display substrate of this embodiment is basically the same as that of the aforementioned first embodiment, and different from the aforementioned first embodiment, the display substrate of this embodiment is further provided with a filling layer. Such as Figure 16 As shown, on a plane parallel to the display substrate, the main structure of the display substrate includes a display area 100, a packaging area 200 and a mounting hole 300, the mounting hole 300 is located in the display area 100, and the packaging area 200 is located between the display area 100 and the mounting hole 300 Between is an annular area surrounding the installation hole 300 . On a plane perpendicular to the display subst...

no. 3 example

[0095] Based on the technical idea of ​​the embodiment of the present invention, the embodiment of the present invention also provides a method for preparing a display substrate. The display substrate includes a display area, a mounting hole located in the display area, and a packaging area located between the display area and the mounting hole. The method for preparing the display substrate in the embodiment of the present invention includes:

[0096] S1. Forming an insulating layer disposed on the substrate and an encapsulation pixel definition layer disposed on the insulating layer in the encapsulation region, the encapsulation pixel definition layer comprising a plurality of protrusions arranged at intervals;

[0097] S2. Forming an isolation structure layer on the encapsulation pixel definition layer, the isolation structure layer comprising a plurality of pillars arranged at intervals, and the pillars are arranged on the protrusions;

[0098] S3. Forming a functional lay...

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Abstract

The invention provides a display substrate, a preparation method thereof, and a display device. The display substrate comprises a display area, an installation hole located in the display area, and apackaging area located between the display area and the installation hole. The packaging area comprises an insulating layer, a packaging pixel definition layer arranged on the insulating layer and partition structure layers arranged on the packaging pixel definition layer. The packaging pixel definition layer comprises a plurality of protrusions arranged at intervals, and each partition structurelayer comprises a plurality of cylinders arranged at intervals, wherein the cylinders are arranged on the protrusions, functional layers are arranged on the cylinders arranged at intervals, and the functional layers are disconnected by the cylinders. According to the packaging structure, the partition structure layer is arranged in each packaging area, the functional layers of the packaging areasare disconnected through the partition structure layers, the water and oxygen invasion path invading the display areas from the mounting holes is completely blocked, it is guaranteed that the subsequently-formed inorganic layer can be effectively attached to the side wall of the column body and the side wall of the protrusion, and the packaging effectiveness and reliability are effectively guaranteed.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display substrate, a preparation method thereof, and a display device. Background technique [0002] Organic Light Emitting Diode (OLED) is an active light-emitting display device, which has the advantages of self-illumination, wide viewing angle, high contrast, low power consumption, and fast response. With the continuous development of display technology, OLED technology is increasingly used in various display devices, especially smart terminal products such as mobile phones and tablet computers. [0003] For smart terminal products, most manufacturers are pursuing a higher screen-to-body ratio, such as full screen and borderless screen, in order to bring more dazzling visual impact to users. Since products such as smart terminals usually need to install hardware such as front cameras and light sensors, the solution of opening mounting holes in the effective display area of...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L27/32H01L51/56
CPCH10K59/122H10K59/873H10K50/844H10K71/00H10K59/1201
Inventor 秦成杰洪瑞谢春燕王涛张嵩
Owner BOE TECH GRP CO LTD
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