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waterproof led display

An LED display and LED lamp bead technology, which is applied to identification devices, sealed enclosures, instruments, etc., can solve the problem of poor self-cleaning effect and waterproof effect of waterproof LED display, poor substrate bonding force, and low bonding strength of superhydrophobic coating. and other problems, to achieve the effect of improving moisture-proof and anti-corrosion ability, not easy to wear, and good self-cleaning effect.

Active Publication Date: 2021-09-24
UNILUMIN GRP
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AI Technical Summary

Problems solved by technology

[0004] However, the current superhydrophobic coatings generally have problems such as low bonding strength and poor bonding with the substrate, which makes the self-cleaning effect and waterproof effect of the waterproof LED display poor.

Method used

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specific Embodiment 1

[0089] A two-step method is used to achieve the waterproof effect of the surface of the mask and the surface of the LED lamp. Since the mask itself is attached below the lamp surface, it is not easily damaged by external factors such as friction and impact, so it can protect the super-hydrophobic coating from being damaged. The LED lamp surface is easily affected by external friction, impact, etc., and the nanostructure of the super-hydrophobic coating is easily damaged. Therefore, it is important to realize a hydrophobic coating with good wear resistance on the LED lamp surface.

[0090]In the first step of the two-step method, a layer of adhesive is evenly coated on both sides of the plastic mask to form an adhesive layer. layer adhesive. Wherein, the plastic mask includes a grid structure of hollow grids arranged in an array, and the hollow grids are the accommodating holes as described above, which are square grids, and the center-to-center distance of adjacent hollow grid...

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Abstract

A waterproof LED display, comprising a PCB board, a mask and a number of LED lamp beads, each LED lamp bead is arranged on the PCB board, the mask is provided with a number of accommodation holes, and each accommodation hole corresponds to each LED lamp bead one by one, the mask Connected to the PCB board, and each lamp bead passes through its corresponding accommodating hole, and the surface of several LED lamp beads is provided with a transparent wear-resistant hydrophobic coating; the mask is provided on the side facing the PCB board and the side facing away from the PCB board There is an adhesive layer and a superhydrophobic coating, and the adhesive layer is located between the mask and the superhydrophobic coating. The binding force of the super-hydrophobic coating is improved through the adhesive layer, the coating has better binding strength, and the binding force of the super-hydrophobic coating and the mask is better, which can achieve a better waterproof effect. By providing a transparent wear-resistant hydrophobic coating on the surface of the LED lamp beads, the LED lamp beads can have a better waterproof effect, and thus the LED display screen can have a better waterproof effect.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a waterproof LED display screen. Background technique [0002] In recent years, the market scale of indoor small-pitch LED (Light Emitting Diode, light-emitting diode) displays has been growing day by day. Due to the advantages of small-pitch LED displays such as rich colors, easy stitching, good uniformity, and low power consumption, they are widely used. It is used in conference places, military command, security display, commercial display and other fields. However, indoor small-pitch LED displays have waterproof and cleaning problems. If they are cleaned with a damp cloth, residual moisture will penetrate into the module, which will affect the service life of the lamp beads and electronic devices. [0003] In order to improve the waterproof performance and realize the self-cleaning effect of the small-pitch LED display, a layer of super-hydrophobic coating is usua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/33H05K5/06
Inventor 林义赵平林袁贤阳黄映茂
Owner UNILUMIN GRP
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