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LED indoor display screen optical protection material and preparation method thereof

A technology for optical protection and display screens, applied in anti-corrosion coatings, fire-resistant coatings, polyester coatings, etc., can solve the problems of affecting the light emission of lamp beads, black spots of glue dispensing, waste of damage rate, etc.

Active Publication Date: 2020-10-30
亿铖达(深圳)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ink dispensing coated LED display has the problems of easy splashing and offset of inkjet, generation of bubbles, lack of material, black spots of dispensing, inconsistent color difference, affecting the light emission of lamp beads, and difficult maintenance of single lamp; organic silicon After potting and coating protective materials, the whole panel is very thick and difficult to maintain for a single lamp, which is only suitable for the limitations of large-pitch LED screens; the nano-coating coating material has poor high and low temperature resistance and anti-vibration performance. The coating process is prone to yellowing when working in a slightly high temperature environment, which will affect the consistency of the display screen.
The most important part of LED display is light emission. Good light emission consistency and no color difference are the high-end level pursued by LED display screens. However, the current protective technology for LED display screens on the market basically has color difference after coating materials. In addition, the current process such as potting and dispensing cannot repair the display screen, and the high damage rate has brought huge waste

Method used

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  • LED indoor display screen optical protection material and preparation method thereof
  • LED indoor display screen optical protection material and preparation method thereof
  • LED indoor display screen optical protection material and preparation method thereof

Examples

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preparation example Construction

[0078] The second aspect of the present invention provides a method for preparing the optical protection material for the LED indoor display screen, which includes the following steps: mixing and stirring polyester resin, alkanes, solvents and other additives uniformly; then adding coupling agent and matting powder Mix with toner, continue to stir for 10-30 minutes, and filter to obtain.

[0079] In the course of research, the inventor found that the present invention uses reasonable compounding of the raw materials of each component, especially the use of silicone modified polyester resin, suitable solvents and toners, so that the prepared protective material has excellent weather resistance and resistance. Yellowing, high and low temperature resistance, good adhesion to the LED display, and easy to remove and repair. After coating on the LED display, it can avoid color difference problems. The inventor believes that the possible reason is that the present invention adopts the c...

Embodiment 1

[0084] Example 1 provides an optical protection material for LED indoor display screens. The raw materials for preparing the protection material, in parts by weight, include the following components: 40 parts of polyester resin, 30 parts of alkanes, 20 parts of solvents, and matting powder 4 Parts, 1 part toner, 1 part coupling agent, 5 parts other auxiliary agents.

[0085] The polyester resin is a silicone modified polyester resin, selected from Changxing Chemical, model ETERKYD50761-S-60; the alkane is octane; the solvent is a combination of ethyl acetate and n-butanol, and the volume ratio is 3 :1; The matting powder is an organic matting powder, selected from Guangzhou Xianrenhui International Trade Co., Ltd., model M2; the toner is a black metal complex powder, selected from Shanghai Yinsai Industrial Co., Ltd., model BLACK- 29; The silane coupling agent is KH550; the other additives are wetting agents, leveling agents, defoamers and rheology additives, the weight ratio is ...

Embodiment 2

[0088] Example 2 provides an optical protection material for LED indoor display screens. The raw materials for preparing the protection material, in parts by weight, include the following components: 50 parts of polyester resin, 30 parts of alkane, 10 parts of solvent, and matting powder 4 Parts, 1 part of toner, 2 parts of coupling agent, 5 parts of other auxiliary agents.

[0089] The polyester resin is a silicone modified polyester resin, selected from Changxing Chemical, model ETERKYD50761-S-60; the alkane is octane; the solvent is a combination of ethyl acetate and n-butanol, and the volume ratio is 3 :1; The matting powder is organic matting powder, selected from Guangzhou Xianrenhui International Trade Co., Ltd., model M2; the toner is black metal complex powder, selected from Shanghai Yinsai Industrial Co., Ltd., model BLACK- 29; The silane coupling agent is KH550; the other additives are wetting agents, leveling agents, defoamers and rheology additives, and the weight ra...

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Abstract

The invention relates to the technical field of adhesives, in particular to a LED indoor display screen optical protection material and a preparation method thereof. The LED indoor display screen optical protection material is prepared from the following raw materials in parts by weight: 40 to 60 parts of polyester resin, 20 to 40 parts of alkane, 10 to 20 parts of a solvent, 5 to 10 parts of extinction powder, 1 to 3 parts of toner, 1 to 3 parts of a coupling agent and 5 to 10 parts of other auxiliary agents. The LED indoor display screen optical protection material has good high and low temperature resistance, a transparent protective film is formed after the LED indoor display screen optical protection material is cured, a circuit can be protected against damage under the conditions ofvibration, moisture, salt mist, moisture and high temperature, and the LED indoor display screen optical protection material has excellent insulation, moisture prevention, electric leakage prevention,dust prevention, corrosion prevention, aging prevention, mildew prevention, vibration prevention, insulation, corona resistance and the like.

Description

Technical field [0001] The invention relates to the technical field of adhesives, in particular to an optical protection material for an LED indoor display screen and a preparation method thereof. Background technique [0002] LED display (LED display) is a flat panel display, composed of small LED module panels, used to display text, images, videos and other information equipment. In recent years, because of its high color gamut, high brightness, seamless splicing and other advantages, LED display screens cater to people's requirements for modern stage beauty, and gradually occupy the mainstream position. [0003] However, the exposed LED display circuit board has a serious impact on its service life due to various environmental factors (acid-base salt spray, corrosive gas, thermal expansion and contraction impact force, mechanical vibration, etc.). For example, long-term exposure to high humidity or salt spray air will aggravate the corrosion of metal parts. At the same time, ot...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D167/06C09D5/08C09D5/25C09D7/63C09D7/20
CPCC09D167/00C09D167/06C09D5/08C09D5/18C09D7/63C09D7/20C08L2201/08C08L2203/206C08L23/06C08K5/01C08K5/544
Inventor 曾丽克石学堂
Owner 亿铖达(深圳)新材料有限公司
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