Pourquoi les performances de protection des écrans LED extérieurs sont-elles si importantes ?

Introduction

Affichage LED extérieur is a common information dissemination tool in modern society, which is widely used in commercial advertising, public information release, traffic instructions, and other fields. Because it is in an outdoor environment, it must have good protection ability to cope with various harsh natural conditions and human factors.

How much do you know about the protection performance of outdoor LED displays? This article will help you learn more about it.

1. Why does the outdoor LED display need protective performance?

The main reasons for the protection performance of outdoor LED displays are as follows:

Environmental factors:

The outdoor environment is changeable, and the LED display screen is often affected by natural factors, such as rain, snow, dust, ultraviolet rays, and high and low temperatures. These factors may cause short circuits, corrosion, aging, and other problems inside the display screen, thus affecting its normal operation.

For example, on a rainy day, you walk through the facade of a shopping center and see a huge LED display showing advertisements. If this display does not have good waterproof performance, rainwater is likely to penetrate into the interior of the display screen, resulting in a short circuit or other damage.

With a waterproof design, such as sealing strips and waterproof grade treatment, the display screen can work normally on rainy days without being affected.

Safety factors:

Outdoor LED displays are usually installed in public places and are vulnerable to man-made damage and theft. Therefore, anti-theft and anti-damage measures need to be taken to ensure the safety of the display screen.

Public security in some areas may not be particularly good, and theft often occurs, so in public places, such as squares or parks, LED displays may become targets for spoilers. Without appropriate protective measures, the display may suffer impact, graffiti, or other forms of damage.

By installing protective barriers and surveillance cameras and strengthening daily patrols, we can ensure the safety of the display screen, just like protecting our home.

Continuous operation requirements:

The outdoor LED display requires continuous operation for a long time, so it is required to have good stability and reliability. Protective performance can effectively reduce the failure rate of the display screen and extend its service life.

2. What does the protection performance include?

The protective performance of outdoor LED displays mainly includes the following aspects:

Étanche à l'eau et à la poussière :

This is the most basic protection requirement for outdoor LED displays. The shell of the display screen needs to reach a certain waterproof and dustproof level, such as IP65, to prevent rainwater and dust from causing damage to internal circuits and components.

In practical application, this means that even on rainy days or sandstorms, the display screen can work normally and is not affected.

Lightning protection and surge protection:

Because outdoor LED displays are usually installed in open places, they are vulnerable to lightning strikes and grid surges. Therefore, the display screen needs to be equipped with lightning protection and surge protectors to prevent lightning and grid surges from damaging the display.

This protector can effectively introduce lightning and surge voltage into the ground, thus protecting the safety of the display.

High and low temperature:

The outdoor LED display needs to work normally under various climatic conditions, including high and low temperatures. Therefore, the display screen needs to have good heat dissipation performance and low-temperature resistance to ensure stable operation in high and low-temperature environments.

This is usually achieved by optimizing the heat dissipation design and selecting materials and components that are resistant to high and low temperatures.

Anti-corrosion and anti-oxidation:

The outdoor LED display has been exposed to air for a long time and is vulnerable to corrosion and oxidation. Therefore, the material and surface treatment process of the display must have the ability to resist corrosion and oxidation.

For example, stainless steel, aluminum alloy, and other corrosion-resistant materials can be used to make the display box; the surface of the display screen can be sprayed to improve its corrosion resistance and oxidation resistance.

Anti-theft and anti-damage:

Outdoor LED displays are usually installed in public places and are vulnerable to man-made damage and theft. Therefore, effective safety measures must be taken to protect the safety of the display.

For example, you can set up protective barriers, install surveillance cameras, use anti-theft locks, etc. At the same time, strengthening the daily inspection and maintenance of the display screen is also an important measure to prevent human damage.

3. How do you choose the level of protection you need?

1). Outdoor LED display protection level:

IP00: No protection; this is the lowest protection level.
IP20: Dustproof, but it has limited protection against some harsh environments (such as sandstorms, fog, etc.).
The IP40: Dustproof and waterproof, but it has limited protection against some harsher environments (such as high temperature, low temperature, etc.).
IP65/IP66: Waterproof, dustproof, salt-proof, can resist more serious external erosion.
IP67/IP68: Waterproof, dustproof, anti-soaking, can resist more serious external erosion.

2). When selecting the protection level of the outdoor LED display, you also need to pay attention to the following details:

Understand the specific meaning of different protection levels:

The IP level is a standard that indicates the waterproof and dustproof ability of outdoor LED displays. For example, IP65 means that the display screen can completely prevent dust from entering and can be washed with water at low pressure without injury.

Therefore, when selecting the protection level, it is necessary to understand the specific meaning of different IP levels to ensure that the selected display can meet the needs of the actual application environment.

Environmental conditions:

First of all, consider the environment in which the display will be installed. If the display screen is installed in a rainy, humid, or prone to water splash, you should choose a display with a high waterproof rating, such as IP65 or IP66.

If the display screen will be installed in areas with frequent dust and sandstorms, the dust level should also be considered.

Climate factors:

Climatic conditions in different regions will also affect the protection level of the display screen. For example, high and low-temperature environments may require the display to be resistant to high and low temperatures.

Therefore, when choosing the protection level, it is necessary to consider whether the display can withstand the impact of extreme weather.

Budget des coûts :

Finally, the choice of protection level also needs to consider the cost budget. Generally speaking, the higher the protection level, the higher the price of the display screen will increase accordingly.

Therefore, when choosing, you need to balance the relationship between protection level and cost according to your own budget and needs.

Consider the special requirements of the display:

In addition to the basic waterproof and dust resistance, it is also necessary to consider whether the display has other special requirements, such as lightning protection, electromagnetic interference, etc.

These requirements may affect the protection level of the display screen, so special attention should be paid to the selection.

Consider the maintenance and maintenance of the display screen:

Even if the display screen with a high protection level is selected, it needs to be maintained regularly to ensure its long-term stable operation.

Therefore, when choosing the protection level, it is necessary to consider the convenience of maintenance and maintenance, as well as the cost of maintenance and maintenance.

Refer to relevant standards and norms:

When selecting the protection level, you can refer to relevant standards and norms, such as national standards, industry standards, etc. These standards and specifications can provide guidance and reference for choosing the appropriate level of protection.

Communicate with suppliers or manufacturers:

Finally, it is also very important to communicate with suppliers or manufacturers. They can provide more information about the display protection level, as well as experience and advice on using the display in different environments.

Through communication with them, you can better understand the performance and characteristics of the display screen so as to choose the protection level that best suits your needs.

4. Strategies for improving the protection performance of outdoor LED display

1). Enhanced shell design and material selection:

Use high-strength and corrosion-resistant materials, such as stainless steel and aluminum alloys, which can resist bad weather, ultraviolet radiation, and oxidation.
Optimize the sealing design of the shell to ensure that there are no gaps or loopholes so as to effectively prevent the entry of moisture and dust.
Consider adding additional protective shells, such as a waterproof coating, to enhance the case’s ability to resist water and dust.

2). Improve the protection ability of internal circuits and components:

Choose circuit boards and electronic components with high waterproof grades to ensure that they can work properly in a humid or underwater environment.
Apply waterproof coating to key circuits and components, which can increase their waterproof performance and prevent short circuits or damage caused by moisture intrusion.
Consider using waterproof connectors and sockets to prevent moisture from entering the interior of the display through these interfaces.