Assembly of top-emission OLED (Organic Light-Emitting Diode) device and top-emission OLED device
A top-emission and module technology, applied in the field of top-emission OLED components and top-emission OLED devices, can solve the problems of low refractive index matching, sensitivity, and unfavorable light escape of the thin-film packaging layer, so as to achieve tight arrangement and increase transmittance , the effect of chemical stability
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[0069] Take the preparation process of ZnO as an example: use diethyl zinc and water as the precursors of zinc and oxygen respectively, and pass them into the reactor in turn to form a ZnO film. In each reaction cycle, the exposure time of the precursor was 60 s, and the reaction environment was N 2 , temperature 130°.
[0070] Furthermore, in the embodiment of the first aspect of the present invention, the material of the first organic encapsulation layer can be epoxy resin; the refractive index of the first organic encapsulation layer is smaller than the refractive index of the light extraction layer, forming a refraction gradient, reducing light total reflection. Further, the thickness of the first organic encapsulation layer may be 1-8 μm, and its refractive index is about 1.56.
[0071] In addition, the material of the first inorganic encapsulation layer can be silicon oxide, silicon nitride or silicon oxynitride, and the refractive index of the first inorganic encapsul...
Embodiment 1
[0094] Put the substrate into acetone, ethanol and deionized water for ten minutes, and then place it in an oven to dry;
[0095] The cleaned substrate is placed in a vacuum chamber, and an anode is formed on the substrate by magnetron sputtering, and the anode is an indium tin oxide / silver / indium tin oxide (ITO / Ag / ITO) film layer;
[0096] Put the prepared substrate into a vacuum evaporation chamber, keep the vacuum at 10-5Pa, use a heating source to heat and sublimate the material, and form a light-emitting layer (hole injection layer / hole injection layer) on the anode by evaporation. transport layer / luminescent layer / electron transport layer / electron injection layer);
[0097]Afterwards, a cathode is formed on the luminescent layer by vacuum evaporation, the thickness of the cathode is 14nm, and the material is a magnesium-silver alloy (the mass ratio of magnesium to silver is 2:8 or 9:1);
[0098] Deposit a light extraction layer on the cathode by atomic layer deposition ...
Embodiment 2
[0103] The difference between embodiment 2 and embodiment 1 lies in the addition of a second organic encapsulation layer. A second organic encapsulation layer with corrugated polymer was formed by layer-by-layer self-assembled polystyrene on the first inorganic encapsulation layer by spin coating.
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