OLED (organic light emitting diode) packaging structure

Abstract

An OLED packaging structure comprises an upper glass substrate, a lower glass substrate and a glass packaging material, wherein the glass packaging material connects the upper glass substrate and the lower glass substrate; and a water heat release layer is arranged on the inner layer of the glass packaging material. A metal sodium layer is arranged on the inner side of the glass packaging material of the OLED packaging structure; and a light emitting product which adopts the OLED packaging structure, such as a display or the like is used for a certain period of time, an OLED packaging process is difficult to meet an ideal requirement, and the glass packaging material can have cracks or bubbles, so that external water molecules enter the inside of the OLED packaging structure. When water vapor encounters the water heat release layer, the water vapor can release a large amount of heat, about 500-600 pats of the heat, so that the glass packaging material can reach a molten condition again; the glass packaging material with certain fluidity refills or seals the cracks and other areas which the water vapor can pass through, an OLED device has a self-healing function, and the service life of the OLED structure is prolonged.

Description

technical field [0001] The invention relates to encapsulation technology, in particular to an OLED encapsulation structure. Background technique [0002] Light-emitting devices have been researched quite a lot in recent years. Organic electroluminescent displays, OLEDs, as an emerging flat-panel display, have attracted people's attention, because they have applications and potential application values ​​in many electroluminescent devices. . It is known that traditional OLED displays have the advantages of good color contrast, active light emission, wide viewing angle, thinning, fast response and low energy consumption. [0003] However, the performance of traditional OLED displays, especially the electrodes and organic layers located therein, is easily degraded due to the action of oxygen and moisture leaked into the OLED display from the surrounding environment, which seriously affects the service life of OLEDs. If the electrodes and organic layers in the OLED display are...

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Problems solved by technology

[0003] However, the performance of traditional OLED displays, especially the electrodes and organic layers located therein, is easily degraded by the oxygen and moisture leaked into the OLED display from the surrounding environment, which seriously affects the service life of OLEDs.

If the electrodes and organic layers in the OLED display are hermetically isolated from the surrounding environment, the lifespan of the OLED display will be significantly increased. However, this sealing process for hermetically sealing the light-emitting display is difficult to meet the ideal requirements, seriously Affect the lifetime of OLED

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