A kind of encapsulation structure and the oled device that adopts this encapsulation structure encapsulation

A technology of encapsulation structure and encapsulation cover, which is applied in the field of OLED devices, can solve problems such as small contact area, achieve the effect of solving small contact area, suitable for mass production, and improving service life

Active Publication Date: 2019-04-19
GUAN YEOLIGHT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a packaging structure and an OLED device packaged with the packaging structure. A water absorbing body and an oxygen absorbing body are added at the same time during packaging. The problem of small contact area, and this method is simple, and can significantly improve the service life of OLED devices

Method used

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  • A kind of encapsulation structure and the oled device that adopts this encapsulation structure encapsulation
  • A kind of encapsulation structure and the oled device that adopts this encapsulation structure encapsulation
  • A kind of encapsulation structure and the oled device that adopts this encapsulation structure encapsulation

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Effect test

Embodiment 1

[0024] The present invention provides a packaging structure, including a packaging cover, the inner surface of the packaging cover has a pit, the area of ​​the pit completely covers the effective light-emitting area of ​​the screen body, and an OLED packaging area is arranged around the pit, such as using UV glue The screen body and the package cover are packaged, and the width of the package area is 0.5-2mm. A water-absorbing body and an oxygen-absorbing body are respectively arranged in the pit, the main component of the water-absorbing body is a water-absorbing agent, and the main component of the oxygen-absorbing body is an oxygen-absorbing agent. The function of the water absorbing agent is to absorb water vapor in the external environment of the OLED, and the function of the oxygen absorbing agent is to absorb oxygen in the external environment of the OLED. The oxygen absorbing agent and the water absorbing agent can be arranged in a matrix in the pit, or pasted or coate...

Embodiment 2

[0040] The water-absorbing body and the oxygen-absorbing body can also choose a gel-like water-absorbing agent and oxygen-absorbing agent to achieve the encapsulation effect. The main component of the water-absorbing body with water-absorbing effect is metal oxide, such as calcium oxide, and the oxygen-absorbing body has The main components of the oxygen absorption effect are alkali metals and alkaline earth metals, molecular sieves or active metals. The specific setting method is as follows:

[0041] Method 2, such as figure 2 :

[0042] The water-absorbing body 3 or the oxygen-absorbing body 4 is arranged in the pit 2 of the packaging cover 1 in the form of dispensing, and the shape can be a closed shape nested at intervals (such as figure 2 shown).

[0043] In order to achieve the encapsulation effect, the following restrictions are made on the water absorbing body and the oxygen absorbing body

[0044] 1. The thickness of the water-absorbing body and the oxygen-absor...

Embodiment 3

[0050] The water absorbing body 3 or the oxygen absorbing body 4 is arranged in the pit 2 of the package cover 1 in the form of dispensing glue, and each forms an independent semi-closed shape (such as image 3 shown).

[0051] In order to achieve the encapsulation effect, the following restrictions are made on the water absorbing body and the oxygen absorbing body

[0052] 1. The thickness of the water-absorbing body and the oxygen-absorbing body is 0.05-0.5mm, which is 0.5mm in this embodiment;

[0053]2. The total area of ​​the water-absorbing body and the oxygen-absorbing body accounts for more than 30% of the effective light-emitting area. In this embodiment, the total surface area accounts for 40% of the effective light-emitting area, and the area ratio of the water-absorbing body and the oxygen-absorbing body is 5:1;

[0054] 3. The water-absorbing body and the oxygen-absorbing body are distributed in the pit in the form of lines, and are arranged at intervals, and th...

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Abstract

The invention provides a package structure and an OLED device packaged by the package structure. The package structure includes a package cover, the inner surface of the package cover has a pit, and a water absorber and an oxygen absorber are arranged in the recess. The oxygen-absorbing body and the water-absorbing body are arranged separately in a matrix, or pasted or coated in the pit in any other pattern, and the separately arranged water-absorbing body and oxygen-absorbing body make the packaging structure have excellent water and oxygen absorption capabilities, The water and oxygen requirement of the OLED device can be guaranteed, and the service life of the device can be improved. Moreover, the method has simple process, strong operability, and is suitable for mass production.

Description

technical field [0001] The invention relates to a package structure and an OLED device packaged by the package structure. Background technique [0002] Flat panel display has the characteristics of complete planarization, lightness, thinness, and power saving. It is an inevitable trend and research focus of image display development. In various types of flat-panel display devices, organic light-emitting display devices (English full name OrganicLight Emitting Display, referred to as OLED) use self-illuminating organic light-emitting diodes (English full name OrganicLight Emitting Diode, referred to as OLED) to display images, with a responsive Short time, driven by low power consumption, relatively better brightness and color purity, so organic light-emitting display devices have become the focus of next-generation display devices [0003] Since OLED is a water and oxygen sensitive device, the life of the device will be greatly reduced under water and oxygen erosion, so eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/50
CPCH10K50/00H10K50/846H10K50/84
Inventor 鲁天星谢静朱映光陈旭胡永岚
Owner GUAN YEOLIGHT TECH CO LTD
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