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Organic light emitting diode unit, display panel and manufacturing method thereof

A technology of light-emitting diodes and display panels, which is applied in the direction of electrical components, semiconductor/solid-state device manufacturing, semiconductor devices, etc., and can solve the problems of life reduction and failure of OLED devices

Active Publication Date: 2020-07-24
YUNGU GUAN TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to address the fact that the traditional thin film encapsulation structure cannot guarantee a complete barrier against water and oxygen, and it is easy to cause external water and oxygen to penetrate the thin film encapsulation layer and enter the organic light-emitting layer of the OLED device, causing the OLED device to be damaged due to excessive water and oxygen content. To solve the problem of reduced lifespan or failure, an organic light emitting diode unit, a display panel and a preparation method thereof are provided

Method used

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  • Organic light emitting diode unit, display panel and manufacturing method thereof
  • Organic light emitting diode unit, display panel and manufacturing method thereof
  • Organic light emitting diode unit, display panel and manufacturing method thereof

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Embodiment Construction

[0064] In order to make the purpose, technical solution and advantages of the present application clearer, the organic light emitting diode unit, the display panel and the preparation method thereof provided in the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0065] see figure 1 , an organic light emitting diode unit 30 is provided, comprising an anode 31, a light emitting layer 32, a first barrier layer 34 and a cathode 33 which are sequentially stacked.

[0066] The anode 31 is used to provide a transmission channel for hole injection. The light emitting layer 32 is disposed on the surface of the anode 31 . The luminescent layer 32 is used to convert electrical energy into light energy. The first barrier layer 34 is dispos...

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Abstract

The present invention relates to the technical field of screen display and particularly provides an organic light emitting diode unit, a display panel, and a preparation method thereof. The organic light emitting diode unit includes an anode, a light emitting layer, a first blocking layer and a cathode which are sequentially stacked. The first blocking layer is disposed between the light emittinglayer and the cathode. The first blocking layer serves to block water and oxygen and increase the adhesion between the light emitting layer and the cathode. On one hand, the first blocking layer can increase the adhesion between film layers, therefore, the reliability of the organic light emitting diode unit is improved. On the other hand, the first blocking layer has a lower water oxygen transmission rate, and the water and oxygen blocking ability of the organic light emitting diode unit can be further improved. Therefore, when the organic light emitting diode unit is used to prepare an OLEDdevice, the service life of the OLED device can be prolonged.

Description

technical field [0001] The present application relates to the field of screen display technology, in particular to an organic light emitting diode unit, a display panel and a preparation method thereof. Background technique [0002] In recent years, with the development of society and the advancement of science and technology, the technological development of smart terminal equipment and wearable equipment is changing rapidly, and the requirements for flat panel display are gradually increasing, and the demand is becoming more and more diverse. Organic light-emitting diode (Organic Light-Emitting Diode, referred to as OLED) is more and more widely concerned by people. Compared with traditional display screens, OLED devices are lighter and thinner in size and lower in power consumption, which helps to improve the battery life of the device. [0003] Existing OLED devices are generally encapsulated by thin film encapsulation (Thin Film Encapsulation, TFE). The thin film enca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/56H01L27/32
Inventor 杨艳芳董晴晴丁德宝孟辉辉
Owner YUNGU GUAN TECH CO LTD
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