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

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

Example Embodiment

[0058] Example 1:

[0059] Take as image 3 The structure shown is an example. A ring groove 201 with a width of 0.5mm and a depth of 0.2mm is opened in the middle area of ​​the preset coating position of the glass glue on the package cover 200; the width is set in the groove 201 by dry transfer. 0.4mm, 0.25mm high lead-bismuth alloy S-shaped bent ring metal strip, coated with glass glue at the position of the groove 201, the glass glue width is 0.7mm; the package cover 200 is heated at 100°C for 1 hour, and the package is baked Cover plate 200, remove the solvent of the packaging glue 300; make a 1μm wide SiNx protective layer 102 on the OLED substrate 100 corresponding to the glass glue area, and press the packaging cover plate 200 with the OLED substrate 100 so that the metal strip is in contact with the substrate 100, and the glass glue Laser curing the area to complete image 3 Package structure shown.

Example Embodiment

[0060] Example 2:

[0061] Take as Figure 5 The structure shown is an example. A ring groove 201 with a width of 0.5 mm and a depth of 0.2 mm is opened in the middle area of ​​the preset coating position of the glass glue on the package cover 200; the groove 201 is provided with a width of 0.4 by dry transfer. A lead-bismuth alloy spiral ring metal strip with a height of 0.4 mm and a lead-bismuth alloy is coated with glass glue at the position of the groove 201. The glass glue has a width of 0.7 mm; the cover plate is heated at 100°C for 1 hour, and the package cover plate 200 is baked and removed The encapsulant 300 is solvent; a 1μm wide SiNx protective layer 102 is made on the OLED substrate 100 corresponding to the glass glue area, and the encapsulation cover 200 is pressed against the OLED substrate 100, so that the spiral metal strip is in contact with the substrate 100 and compressed until it is no longer deformed. Laser curing the glass glue area to complete such Figure...

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PUM

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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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