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Display panel packaging structure, display panel and display device

A packaging structure and display panel technology, which is applied in the fields of optics, instruments, electrical components, etc., can solve problems such as cracks in the packaging structure, and achieve good packaging effect, stable display effect and long service life

Active Publication Date: 2020-02-28
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a display panel packaging structure, a display panel and a display device to solve the problem that the existing packaging structure is prone to cracks

Method used

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  • Display panel packaging structure, display panel and display device
  • Display panel packaging structure, display panel and display device
  • Display panel packaging structure, display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] as image 3 The structure shown is taken as an example. An annular groove 201 with a width of 0.5 mm and a depth of 0.2 mm is provided in the middle area of ​​the preset coating position of glass glue on the package cover 200; 0.4mm and 0.25mm high lead-bismuth alloy S-shaped bent ring-shaped metal strip, coated with glass glue at the position of the groove 201, the width of the glass glue is 0.7mm; heat the package cover plate 200 at 100°C for 1 hour, bake and package Cover plate 200, remove the encapsulant 300 solvent; make a 1 μm wide SiNx protective layer 102 on the OLED substrate 100 corresponding to the glass glue area, press the encapsulation cover plate 200 and the OLED substrate 100, make the metal strip contact with the substrate 100, and the glass glue area is laser cured, complete image 3 The package structure shown.

Embodiment 2

[0061] as Figure 5 The structure shown is taken as an example. An annular groove 201 with a width of 0.5mm and a depth of 0.2mm is provided in the middle area of ​​the preset coating position of glass glue on the packaging cover plate 200; mm, 0.4mm high lead-bismuth alloy spiral annular metal strip, coated with glass glue at the position of groove 201, the width of glass glue is 0.7mm; heat the cover plate at 100°C for 1h, bake the package cover plate 200, remove Encapsulation glue 300 solvent; make a 1 μm wide SiNx protective layer 102 on the OLED substrate 100 corresponding to the glass glue area, press the packaging cover plate 200 and the OLED substrate 100, make the spiral metal strip contact with the substrate 100 and compress until it is no longer deformed, Laser curing the glass glue area, complete as Figure 5 The package structure shown.

[0062] It should be noted that the exemplary packaging structure described above can be used not only for OLED display panels...

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Abstract

The invention provides a display panel packaging structure, a display panel and a display device. The packaging structure comprises a substrate and a packaging cover plate, wherein the packaging coverplate and the substrate are oppositely arranged, a groove is formed in the position, opposite to a non-display area of the substrate, of the packaging cover plate, a stress buffer piece is arranged in the groove, the substrate and the packaging cover plate are bonded through packaging glue, the groove is filled with the packaging glue, a stress buffer piece is located in the packaging glue, a buffer coefficient of the stress buffer piece is larger than that of the packaging glue, the stress buffer piece can reduce stress generated by external force on the packaging glue, the packaging glue isprevented from cracking, so sealing performance of the packaging structure is protected, and the water vapor is prevented from entering the packaging structure. The packaging structure is advantagedin that the display panel comprising the packaging structure is good in packaging effect, stable in display effect and long in service life.

Description

technical field [0001] The present invention relates to the field of display technology, in particular, to a display panel packaging structure, a display panel and a display device including the packaging structure. Background technique [0002] During the manufacturing process of the display panel, the light-emitting device needs to be packaged and protected to prevent water vapor and oxygen from entering the inside of the light-emitting device, causing problems such as abnormal display and reduced lifespan, and affecting the performance of the display. [0003] Currently commonly used encapsulation methods often use encapsulation glue for encapsulation, and the encapsulation glue has a better effect of blocking water and oxygen. However, due to the problem of stress, the encapsulation adhesive is prone to cracks under the influence of external force after curing. If the cracks extend to the inside of the device, the barrier function of the encapsulation adhesive will be af...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L27/32G02F1/1339
CPCG02F1/1339H10K59/00H10K50/8426
Inventor 罗程远
Owner BOE TECH GRP CO LTD
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