Moisture proof and dehumidification methods for indoor small pitch LED display

In today's era of rapid technological development, LED technology is like a brilliant new star, demonstrating remarkable progress. With the continuous updating and development of technology today, the spacing between indoor LED displays is getting smaller and the images are becoming clearer. This article will discuss the necessity and methods of moisture-proof and dehumidification for indoor small pitch led display.



Environmental Condition Monitoring and Maintenance

1.Temperature and humidity control: Carefully check the temperature and humidity of the environment where the indoor led display screen is located every day. The suitable working temperature should be maintained at ≤ 30 ℃, and the humidity should be controlled at ≤ 60% RH. Only by ensuring such environmental conditions can the display screen operate stably.

2.Equipment usage frequency and preheating operation: The indoor led screen and supporting equipment should be used at least twice a week, with a duration of no less than 2 hours each time. If the display screen has not been used for 5 consecutive natural days, it is necessary to perform preheating, dehumidification, and dehumidification operations before reusing it. This is because the packaging materials for LED display devices are mostly plastic materials such as epoxy resin, and plastic belongs to polymer materials with large intermolecular gaps, making it easy for vapor water molecules to enter the shell through the gaps. LED products are moisture sensitive components that slowly absorb moisture during use. Therefore, following the frequency of use and preheating operation requirements is crucial to prevent moisture damage.



Characteristics and Protection of LED Devices

1. The importance of moisture prevention: It should be emphasized that waterproofing does not equate to moisture prevention. Moisture prevention is mainly to prevent the invasion of moisture and dampness. Due to the special packaging material of LED display devices, they are prone to absorbing moisture. In environments with temperature ≤ 30 ℃ and humidity ≤ 60% RH, small pitch LED products have specific moisture absorption characteristic curves.

2. Moisture hazard: Once LED display devices become damp, water vapor can seep into them. When halogen containing water vapor enters the device, the halogen in the water vapor will undergo electrochemical reactions with the metal inside the device when it is powered on. This reaction may lead to serious consequences, such as chip short circuit leakage or electrode drop, ultimately causing abnormal phenomena such as blind lights and string lights in display devices.

3. Storage points: During the transportation and storage of LED devices, objects should be used to elevate them, and comprehensive waterproof and moisture-proof preparations should be made. Meanwhile, temperature and humidity monitoring of the storage environment is crucial. The optimal storage environment is temperature<30 ℃, humidity<60% RH, and desiccants should be added during transportation and storage to reduce the impact of moisture on the device.


Spare parts and indoor environment treatment

1. Spare parts packaging: For spare parts modules HUB、 The receiving cards should be vacuum packed or sealed, and desiccants should be placed to prevent them from getting damp during the standby period.

2. Indoor dehumidification method: Physical dehumidification: Placing an appropriate amount of desiccant indoors can effectively reduce the moisture content in the air. Moderate ventilation: In dry and windy weather, moderate ventilation can accelerate the evaporation rate of water vapor, thereby reducing the relative humidity of indoor environment. But it is important to avoid ventilation in humid weather to prevent the introduction of more moisture. Air conditioning dehumidification: In humid weather, the dehumidification function of the air conditioner can be used to reduce the humidity of indoor air and lower the chance of the display screen being affected by moisture. Professional dehumidifier: Using a specialized dehumidifier for dehumidification can control indoor humidity more accurately and efficiently, creating a suitable environment for display screens.

3.Dehumidification of the screen body during use: After installation, the screen body should be frequently illuminated for use. If the display screen is not used for a long time (usually 5-10 days), it should be dehumidified before use. By gradually increasing the brightness, the accumulated moisture inside the screen can be removed by slowly raising the temperature. This method of gradually increasing the brightness to remove moisture can effectively protect the display screen.

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