Substrate of organic electroluminescence device and production method thereof

An electroluminescent device and electroluminescent technology, which are applied in the fields of electro-solid devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve problems such as damage to organic layers, damage to the flatness of metal substrates, and influence on the luminous effect of OLED processes. To achieve the effect of simple preparation method, low roughness and good luminous effect

Inactive Publication Date: 2013-05-15
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The surface of ordinary metal flakes presents ups and downs. When other materials are directly evaporated or sputtered on the surface, the size of the covered materials is obviously smaller than the undulations of the flake surface, so a "conformal" effect will be produced. Commonly used Such as epoxy resin, polyimide, acrylic resin and other organic materials can not be used at high temperature for flatness. In the process of preparing anode by thermal evaporation or sputtering, it is easy to damage the organic layer, thus destroying the metal substrate. Flatness affects the subsequent OLED manufacturing process and luminous effect

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  • Substrate of organic electroluminescence device and production method thereof
  • Substrate of organic electroluminescence device and production method thereof
  • Substrate of organic electroluminescence device and production method thereof

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preparation example Construction

[0026] see figure 1 , the preparation method of the substrate of the organic electroluminescence device of an embodiment, comprises the following steps:

[0027] Step S21 , providing a colloid of a metal substrate and a zinc-containing source compound.

[0028] The preparation process of the colloid containing the zinc source compound is as follows: the zinc source compound is mixed with a solvent and a stabilizer and heated to reflux for 2 hours to form a zinc source compound colloid, and the concentration of zinc ions in the zinc source compound colloid is 0.2 mol / L~2mol / L. In this embodiment, the zinc source compound, the solvent and the stabilizer are mixed and stirred, heated to 60° C. and refluxed for 2 hours until the solution forms a uniform and transparent sol.

[0029] In this embodiment, the zinc source compound is zinc acetate, zinc selenite or zinc nitrate. The solvent is ethanol or ethylene glycol methyl ether. Stabilizer is ethanolamine stabilizer, such as e...

Embodiment 1

[0041] Add zinc acetate and triethanolamine to ethylene glycol methyl ether so that the concentration of zinc ions is 1mol / L, and the molar ratio of zinc ions to triethanolamine is 1:1, and then heat and reflux at 60°C for 2 hours until a solution is formed Uniform and transparent sol.

[0042] Take the stainless steel sheet, clean it after polishing, then drop the prepared zinc oxide colloid on the surface of the stainless steel sheet, and distribute the colloid evenly on the surface of the sheet by spin coating. During the spin-coating process, the spinning speed of the spinner was 2500 rpm, and the spin-coating time was 40 seconds. Dry the spin-coated sheet at 150°C for 10 minutes, and then spin-coat the colloid on the surface again. After the spin-coating is completed, dry it again. Repeat the spin-coating process for 5 times to obtain a smooth layer with a thickness of 1 μm. The stainless steel sheet prepared above is heated up to 500° C. under the protection of N2 and sin...

Embodiment 2

[0045] Add zinc nitrate and diethanolamine to ethanol to dissolve, so that the concentration of zinc ions is 0.2mol / L, and the molar ratio of zinc ions to diethanolamine is 1:0.5, and then heat and reflux at 60°C for 2 hours until the solution forms a uniform Transparent sol.

[0046] Take the stainless steel sheet, clean it after polishing, then drop the prepared zinc oxide colloid on the surface of the stainless steel sheet, and distribute the colloid evenly on the surface of the sheet by spin coating. During the spin-coating process, the spinning speed of the spinner was 1500 rpm, and the spin-coating time was 20 seconds. Dry the spin-coated sheet at 120°C for 5 minutes, and then spin-coat the colloid on the surface again. After the spin-coating is completed, dry it again. Repeat the spin-coating for 3 times, and finally obtain a smooth layer with a thickness of 0.2 μm. The stainless steel sheet prepared above is heated up to 300° C. under the protection of N2 and sintered...

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Abstract

A substrate of an organic electroluminescence device comprises a metal substrate and a leveling layer covered on the metal substrate. The leveling layer is a zinc oxide thin film. The substrate of the organic electroluminescence device is a metal substrate, and the leveling layer made of zinc oxide is formed on the metal substrate so that roughness of the substrate is low. The metal substrate is low in cost and water oxygen barrier property is good. The leveling layer made of zinc oxide has good heat resistance, surface evenness of the substrate cannot be damaged by high temperature during a subsequent production process of the organic electroluminescence device, and pinholes and sharp splinters are not prone to be generated so that the organic electroluminescence device with the substrate can have a good luminescent effect. The invention further provides a production method for the substrate of the organic electroluminescence device.

Description

【Technical field】 [0001] The invention relates to a substrate of an organic electroluminescent device and a preparation method thereof. 【Background technique】 [0002] Organic Light Emission Diode (OLED) device, referred to as OLED, has the characteristics of high brightness, wide range of material selection, low driving voltage, fully cured active light emission, etc., and has the advantages of high definition, wide viewing angle, and fast response speed. In line with the development trend of mobile communication and information display in the information age, as well as the requirements of green lighting technology, it is the focus of many researchers at home and abroad. [0003] Among OLED devices in the prior art, OLED devices made of glass substrates do not have the feature of bending, and the glass is fragile, which affects the application of light emitting devices. OLED devices using flexible materials as metal substrates have the advantages of being thinner and more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/56
Inventor 周明杰王平冯小明钟铁涛
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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