After the middle and late May, the "fine rain weather" came as scheduled, and the phenomenon of heavy rain and flooding of the city continued to be staged. We know that the LEDs on the display are MSD components (humidity sensitive devices), so this wet and rainy weather is a big challenge for LED displays . So how do you deal with the problem of moisture entering or even entering the LED display during the rainy season?
Summer Southern Region Climate Challenges for LED Display Devices
Indoor LED display should pay attention to ventilation and dehumidification
For indoor displays, first moderate ventilation. Moderate ventilation can help the moisture attached to the display to evaporate quickly, reducing the relative humidity of the indoor environment. However, avoid ventilating in some windless and humid air, which will increase the humidity in the room; secondly, put desiccant indoors, use physical moisture to reduce the moisture in the air; or turn on the air conditioner for dehumidification, if the display Air conditioning is installed in the installed space, and the air conditioner can be turned on in humid weather for dehumidification.
Outdoor LED display focuses on waterproof
The environment of the outdoor LED display itself is more complicated than indoors, and the moisture-proof can adopt the indoor method, but the outdoor screen should not only consider the wet problem, but also do the daily maintenance work such as waterproofing, especially in the rainy season, so it is good. The sealed installation can help the display reduce the risk of water ingress, regularly clean the dust attached to the outside of the display, and also help the display to better heat dissipation and reduce the adhesion of water vapor.
Moisture entering may cause LED display dead light
Therefore, the most important thing is that the most important aspect of outdoor full-color LED display waterproofing is prevention during production and construction.
In the process of use, the humidity of the LED display board, power supply, power line and other zero devices are relatively easy to be oxidized and corroded, resulting in malfunction. Therefore, this requires us to make the LED display screen, the PCB board is anti-corrosion treatment, such as the surface coating three anti-paint, etc., the power supply and power line should use high-quality accessories. The waterproof box is chosen for good sealing and the screen must reach IP65. The welding place is the place that is most likely to be corroded. It is necessary to pay attention to the protection work. In particular, the frame is proposed, which is easy to rust and is rust-proof.
Secondly, for different cell board materials, a professional waterproof coating is needed. Here, the P10 full-color outdoor LED display is used as an example. First of all, confirm that the P10 full-color outdoor unit board is magnet-adsorbing or screwing (the screw effect is good, the magnet is slightly worse); secondly, there is no waterproof groove on the unit board kit. If there is, the front waterproof is basically not a big problem, even if it is The unit board is fixed with a magnet and it is no problem. Finally, we also need to pay attention to the waterproof problem of the back panel of the outdoor LED display, because in the process of using the display, the back panel LED display is not only heat-dissipating, but also has great convenience in dealing with waterproof performance. Sex. When dealing with the waterproof coating on the back side, pay more attention to the waterproof performance of the aluminum strip in the back strip display. It is necessary to use the electric drill to design a row of drains under the aluminum-plastic panel, which is beneficial to the waterproof display and the heat dissipation of the display. The best display processing method.
The other part needs to be implemented in the specific construction site; in the structural design, the combination of prevention and drainage; after the structure is determined, according to the characteristics of the structure, it can be considered to have a hollow bubble tube structure, a small compression set rate, and an elongation at break. Large performance sealing strip material; after selecting the sealing strip material, it is necessary to design a suitable contact surface and contact force according to the characteristics of the sealing strip material, so that the sealing strip is pressed into a dense shape. In some installations, waterproof tanks, etc., focus on protection, to ensure that there is no water inside the display. This will ensure that the display will not have any quality problems caused by human factors during the rainy season.
LED display in high temperature and high humidity area needs to be frequently dehumidified
Finally, whether it is indoor or outdoor, the most effective way to avoid moisture damage to the display function is to use it frequently. The working display itself generates some heat and can evaporate some water vapor, which greatly reduces the amount of water. The possibility of a short circuit caused by moisture. Therefore, the frequently used display screen has a much smaller humidity effect than the less commonly used display. The insiders suggest that the LED screen display should be used at least once a week during the rainy season, and at least once a month, and light up for more than 2 hours.
In addition to the installed LED display in the rainy season should pay attention to waterproof and moisture, engineering and channel operators should also understand how the LED display is treated in the warehouse.
The correct treatment method for the LED display screen water inlet:
1. Use the fan or other tools at the fastest speed to completely dry the LED display screen of the incoming water.
2. Power on and aging the screen after completely drying. The specific steps are as follows:
a, the brightness (all white) is adjusted to 10%, and the power is aged for 8-12 hours.
b. Adjust the brightness (all white) to 30%, and aging for 12 hours.
c. Adjust the brightness (all white) to 60% and the power to aging for 12-24 hours.
d, the brightness (all white) is adjusted to 80%, and the power is aged for 12-24 hours.
e, the brightness (all white) is adjusted to 100%, and the power is aged for 8-12 hours.
After completing the above steps, the LED display screen will basically return to normal; however, the following points should be noted during the processing:
1. Do not put the LED display screen that has already entered the water into the air box, so it is easy to smother the LED light.
2. When the water is in the warehouse, the air box may have to enter the water. All the air boxes should be exposed to the sun to prevent the water from evaporating into the LED display after the packing body.
3. All the LED display that enters the water is not processed in time, which may affect the stability of the screen more or less. During the emergency treatment, the screen may be continuously dead after being energized.
4. All the LED display screens in the water are in the air box. More than 72 hours, the screen body is basically no repair value, please be careful.
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