Organic light-emitting diode device, fabrication method and display device

Abstract

The invention relates to an organic light-emitting diode device, a fabrication method and a display device, so as to improve the waterproof oxidation performance of the organic light-emitting diode device (OLED) device. An organic light-emitting diode display device comprises a first substrate, the organic light-emitting diode device, at least one packaging layer, a bonding layer and a second substrate, wherein the organic light-emitting diode device is arranged on the first substrate; the at least one packaging layer is arranged on the organic light-emitting diode device; the bonding layer is arranged on the at least one packaging layer; the second substrate is arranged on the bonding layer; and a concave-convex structure is formed in at least one side surface of the packaging layer. According to the technical scheme provided by the invention, compared with the prior art, the damages to the OLED device caused by water vapor and oxygen in air can be reduced; and the waterproof oxidation performance of the OLED device is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic light emitting diode device, a manufacturing method and a display device. Background technique [0002] OLED (Organic Light-Emitting Diode, organic light-emitting diode, referred to as OLED) display is thin, light, wide viewing angle, active light emission, continuously adjustable light color, low cost, fast response, low energy consumption, low driving voltage, and operating temperature With the advantages of wide range, simple production process, high luminous efficiency and flexible display, it has become a promising next-generation display technology. [0003] Studies have shown that components such as water vapor and oxygen in the air have a great impact on the life of OLED devices in OLED displays. This is because: OLED devices need to inject electrons from the cathode when they work, which requires the lower the cathode work function, the better, but The catho...

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Problems solved by technology

[0003] Studies have shown that components such as water vapor and oxygen in the air have a great impact on the life of OLED devices in OLED displays. This is because: OLED devices need to inject electrons from the cathode when they work, which requires the lower the cathode work function, the better, but The cathode is usually made of metal materials such as aluminum, magnesium, calcium, etc., and its chemical properties are relatively active, and it is very easy to react with the infiltrated water vapor and oxygen.

In addition, water vapor and oxygen will also chemically react with the hole transport layer and the electron transport layer of the OLED device, and these reactions will cause the failure of the OLED device

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