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A method of making a three-dimensional inorganic electroluminescent device

An electroluminescent device and inorganic technology, which is applied in the field of manufacturing three-dimensional inorganic electroluminescent devices, can solve problems such as the inability to prepare continuous light-emitting films on three-dimensional surfaces, and achieve good luminous effects and simple preparation processes

Active Publication Date: 2022-05-10
珠海纳金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for manufacturing a three-dimensional inorganic electroluminescent device, aiming to solve the problem that other methods in the prior art cannot prepare a continuous luminescent film on a three-dimensional three-dimensional surface. The technical scheme of the present invention is as follows:

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  • A method of making a three-dimensional inorganic electroluminescent device
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  • A method of making a three-dimensional inorganic electroluminescent device

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Embodiment 1

[0049] A method for making a three-dimensional inorganic electroluminescent device, comprising the steps of:

[0050] S1: Use a three-dimensional glass bottle as the base material, remove impurities on the inner and outer surfaces of the base material with alcohol, then pre-bake at 150°C for 30 minutes, and cool naturally for later use;

[0051] S2: Prepare the pastes used for the lower electrode layer, dielectric layer, light-emitting layer and transparent conductive layer respectively, as follows:

[0052] Preparation of lower electrode layer slurry: by mass percentage, add 47% ethyl acetate, 50% silver paste and 3% polyurethane resin into the container, and stir evenly;

[0053] Preparation of medium layer slurry: by mass percentage, add 10% BaTiO in the container 3 , 10% polyurethane resin and 80% ethyl acetate, stirred evenly;

[0054] Preparation of luminescent layer slurry: by mass percentage, add 20% ZnS:Mn, 10% ethyl cellulose resin, 69% DBE and 1% silicon dioxide i...

Embodiment 2

[0064] A method for making a three-dimensional inorganic electroluminescent device, comprising the steps of:

[0065] S1: Use PET film as the base material, remove impurities on the inner and outer surfaces of the base material with alcohol, then pre-bake at 130°C for 30 minutes, and cool naturally for later use;

[0066] S2: Prepare the pastes used for the lower electrode layer, dielectric layer, light-emitting layer and transparent conductive layer respectively, as follows:

[0067] Preparation of lower electrode layer slurry: by mass percentage, add 50% ethyl acetate, 40% silver paste and 10% polyurethane resin into the container, and stir evenly;

[0068] Preparation of medium layer slurry: by mass percentage, add 5% BaTiO in the container 3 , 20% polyurethane resin and 75% ethyl acetate, stirred evenly;

[0069] Preparation of luminous layer slurry: by mass percentage, add 30% ZnS:Mn, 5% ethyl cellulose resin, 62% DBE and 3% silicon dioxide into the container, and stir ...

Embodiment 3

[0078] A method for making a three-dimensional inorganic electroluminescent device, comprising the steps of:

[0079] S1: Use three-dimensional ceramics as the base material, remove impurities on the outer surface of the base material with alcohol, then pre-bake at 140°C for 30 minutes, and cool naturally for later use;

[0080] S2: Prepare the paste used for the lower electrode layer, dielectric layer, light-emitting layer and transparent conductive layer, as follows:

[0081] Preparation of lower electrode layer slurry: by mass percentage, add 55% DBE, 40% silver-copper paste and 5% polyurethane resin into the container, and stir evenly;

[0082] Preparation of medium layer slurry: by mass percentage, add 15% PbTiO in the container 3 , 20% acrylic resin and 65% ethyl acetate, stir evenly;

[0083] Preparation of luminescent layer slurry: by mass percentage, add 30% ZnS:Cu, 10% ethyl cellulose resin, 58% DBE and 2% silicon dioxide into the container, and stir evenly;

[00...

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Abstract

The invention provides a method for manufacturing a three-dimensional inorganic electroluminescent device, which includes substrate pretreatment, configuration of slurry for each functional layer, and steps of sequentially overlapping and spraying each functional layer on the substrate by a spraying process. The process of the invention is simple and It can be produced continuously, which solves the problem that the printing methods such as screen printing and gravure printing in the prior art cannot produce continuous luminescent films on the surface of three-dimensional substrates or irregular substrates, and can directly continuously produce luminescent films on the surface of any substrate And the luminous film is flat and uniform, and the luminous effect is not affected by the shape of the substrate; in addition, the present invention does not require a template, and the spraying path can be directly controlled through the spraying program, so that arbitrary patterning can be realized and automatic production can be more easily realized.

Description

【Technical field】 [0001] The invention belongs to the technical field of inorganic electroluminescence, and in particular relates to a method for manufacturing a three-dimensional inorganic electroluminescence device. 【Background technique】 [0002] EL electroluminescence refers to the self-luminescence phenomenon of the luminescent layer under the action of an external electric field. It is characterized by active luminescent cold light source, surface luminescence and uniform light source without spots, low power, long life (greater than 5000h), and wide operating temperature range (-40 ~70°C). The luminescent film is mainly composed of 4 layers: anode, dielectric layer, luminescent layer and cathode. There are many methods for preparing these 4 layers of film. At present, Meyer rod coating method, screen printing method, transfer printing method, spinner Coating method and drop coating method, the film layer prepared by these methods shows good performance on the flat su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/10
CPCH05B33/10
Inventor 赵亮全晓冬邓璇丁轶雷震
Owner 珠海纳金科技有限公司
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