Organic light-emitting diode device and preparation method thereof

An electroluminescence device and electroluminescence technology, applied in circuits, electrical components, electric solid devices, etc., can solve problems such as refractive index mismatch

Inactive Publication Date: 2015-03-25
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Usually prepared OLED light-emitting devices, due to the refract

Method used

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  • Organic light-emitting diode device and preparation method thereof
  • Organic light-emitting diode device and preparation method thereof
  • Organic light-emitting diode device and preparation method thereof

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preparation example Construction

[0048] The first embodiment also provides a method for preparing an organic electroluminescent device, which includes the steps of:

[0049] 101: Provide a substrate.

[0050] 102: Deposit the light extraction layer on the substrate with a first preset screen printing mesh, and the material of the light extraction layer includes nano-microspheres made of silicon dioxide, titanium dioxide, or polymer polystyrene The material and the polymer material are heat-cured epoxy resin, or light-cured acrylic resin, or heat-cured amide resin material, the nano-microsphere material is doped in the polymer material, and the light extraction layer Multiple light-transmitting layers with different nano-microsphere contents are sequentially formed on the substrate, the nano-microsphere contents of the multiple light-transmitting layers increase sequentially, and the nano-microspheres in a single light-transmitting layer in the light extraction layer The ball diameters are the same, the diame...

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Abstract

The invention provides an organic light-emitting diode device comprising a substrate, a light extraction layer, a conductive anode, a light-emitting function layer and a conductive cathode. The substrate, the light extraction layer, the conductive anode, the light-emitting function layer and the conductive cathode are successively laminated. The light-emitting function layer emits light through the substrate under the voltage drive. The light extraction layer is characterized in that a polymer material is doped with a nanoparticle material and includes a plurality of light-transmitting layers with different nanoparticle contents; and the multiple light-transmitting layers with different nanoparticle contents are laminated along the direction from the substrate to the conductive anode. Because of the different nanoparticle contents in the light-transmitting layers, the body refractive index of the light extraction layer can be changed; and the more the contents, the larger the refractive index. Therefore, the light-transmitting layer approaching the conductive anode has the higher refractive index and the light-transmitting layer approaching the substrate has the lower refractive index, thereby realizing refractive index matching of the light extraction.

Description

technical field [0001] The invention relates to the field of organic electroluminescence, in particular to an organic electroluminescence device and a preparation method thereof. Background technique [0002] Organic electroluminescence, also known as OLED, has the characteristics of high brightness, wide range of material selection, low driving voltage, and full-cure active light emission. It also has the advantages of high definition, wide viewing angle, and fast response speed. It is a display technology and light source with great potential, which conforms to the development trend of mobile communication and information display in the information age, as well as the requirements of green lighting technology, and is the focus of many researchers at home and abroad. [0003] Usually prepared OLED light-emitting devices, due to the refractive index mismatch between the electrode material, the glass substrate and the air. When the light emitted by the OLED light-emitting un...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/52H01L51/54H01L51/56
CPCH10K50/85H10K71/00
Inventor 周明杰冯小明钟铁涛王平
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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