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Self-cleaning LED package coating and preparation method thereof

An LED packaging and self-cleaning technology, applied in electrical components, circuits, semiconductor devices, etc., can solve problems such as increased maintenance costs, reduced lifespan, unclear display, etc., to extend the lifespan, reduce the price, and reduce the difficulty of cleaning and maintenance. Effect

Inactive Publication Date: 2019-02-26
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the display screen has been in operation for a certain period of time, there will be some dust and other sundries and dirt that affect the display, resulting in possible unclear display, shortened life span, and increased maintenance costs

Method used

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  • Self-cleaning LED package coating and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: The self-cleaning coating includes 0.15 g of nanoscale titanium dioxide particles, 1 g of tridecafluorooctyltriethoxysilane and 100 g of absolute ethanol. The particle size of the titanium dioxide is 40nm.

[0016] Mix tridecafluorooctyltriethoxysilane with absolute ethanol, stir magnetically for 10 minutes to make it evenly mixed, add titanium dioxide particles, and stir magnetically for more than 30 minutes to obtain the required self-cleaning coating; during the whole stirring process The solution needs to maintain good sealing; after the metal substrate is packaged, immerse the entire lens part and the surface of the plastic package part in the paint for 30 seconds, then take it out and dry it to reach the superhydrophobic self-cleaning surface.

Embodiment 2

[0017] Example 2: The preparation method of Example 2 is the same as that of Example 1, the only difference being that the raw materials are different. The self-cleaning coating includes 0.1 g of nanoscale titanium dioxide particles, 0.5 g of tridecafluorooctyltriethoxysilane and 80 g of absolute ethanol. The particle size of titanium dioxide is 20 nm.

Embodiment 3

[0018] Example 3: The preparation method of Example 3 is the same as that of Example 1, the only difference being that the raw materials are different.

[0019] The self-cleaning paint includes 0.2 g of nanoscale titanium dioxide particles, 2 g of tridecafluorooctyltriethoxysilane and 120 g of absolute ethanol.

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Abstract

The invention belongs to the field of coatings, and in particular relates to a self-cleaning LED package coating and a preparation method thereof. The self-cleaning LED package comprises a metal substrate cut into two sides to form an anode and a cathode. An LED chip which is located above the center of the metal substrate and a plastic package part used for packaging the metal substrate are arranged. The plastic package part and a lens part protruding above the center are integrally formed. The coating comprises a self-cleaning painting coated on the plastic package part and the surface of the lens part. The self-cleaning painting comprises, by weight, 0.1 to 0.2 part of nanoscale titanium dioxide particles, 0.5 to 2 parts of tridecafluorooctyl triethoxysilane, and 80 to 120 parts of absolute ethanol. The acquired LED package has the property of super-hydrophobic self-cleaning without ultraviolet irradiation, and has the properties of anti-wetting, anti-icing and anti-corrosion. The service life of an LED can be prolonged, and the difficulty of cleaning and maintenance is reduced.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a self-cleaning LED packaging coating and a preparation method thereof. Background technique [0002] The existing packaged LEDs do not take into account the cleaning problem after the LED array is assembled. After the display screen has been in operation for a certain period of time, there will be some dust and other sundries and dirt that affect the display, resulting in possible unclear display, shortened life span, and increased maintenance costs. Contents of the invention [0003] The object of the present invention is to provide a self-cleaning LED packaging coating and a preparation method thereof. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: [0005] A self-cleaning LED encapsulation coating, the self-cleaning LED encapsulation includes a metal substrate, which is cut to both sides to form an anode a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/56
CPCH01L33/56H01L2933/005
Inventor 石浩川邹强
Owner TIANJIN UNIV
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