Moisture proof is different from waterproof.Waterproof is to prevent liquid water, moisture proof is moisture, humidity.
The packaging material of the LED device is mainly a plastic material such as epoxy resin. The plastic is a polymer material, and the gap between the molecules of the polymer material is large. The vaporous water molecules can penetrate into the shell through the gap, but the liquid molecules are due to their own tension. And the mobility is not strong, the rate of penetration will be much smaller.
LED devices, outdoor lamp bead devices through the structural design to meet the product waterproof function, but no matter the outdoor, indoor lamp beads, due to the characteristics of plastic materials, are all moisture sensitive electronic components.
The LED device is damp, and the water vapor penetrates into the lamp bead. When the water vapor contained in the air penetrates into the lamp bead, the halogen in the water vapor reacts with the metal in the lamp bead in the case of energization, which seriously causes the chip to short-circuit and leak. Or drop the electrode, causing the display bead to appear xenon and string bright.
Coming March of each year in China, the weather is quite humidity. How to properly keep and use the led display is especially important.
First, for the use of the led display
1. Check the line and switch to keep the switch dry to avoid electric leakage or electric shock.
2, moderate ventilation, can help the water vapor 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 indoor humidity.
3, you can use air conditioning to extract moisture and place desiccant and physical moisture absorption method to keep dry and prevent the display screen from getting wet.
4, leasing indoor led display in outdoor use, in the rainy days must immediately power off, not to dismantle the screen ** with a prepared rain cloth to cover quickly, take the box out of the sun to dry. If you are experiencing continuous rain ** To open the back cover of the cabinet, use a fan to blow dry air. Then dry in a ventilated and dry room for more than 8 hours. The low-brightness guarantee point is brighter for more than 4 hours, and the moisture in the electronic components is fully emitted.
5, the rainy season LED screen display at least once a week, at least once a month to open the screen, lighting for more than 2 hours.
6. The environment of the outdoor display is complicated, and it is inevitable that there will be water seepage in the cabinet. In addition to the above measures, it is usually necessary to regularly check whether the waterproof rubber ring of the box is aging, deformed or defective; whether the screw or the lock of the sealed box is easy to loose and the pressure is insufficient.
7. The screen body that has been put on for a long time should be energized and maintained frequently. Whether it is the indoor led display or the outdoor led display, if it is not used for a long time, when it is enabled, there will be a high probability that there will be dead lights and defects, and the correct one is mastered. Maintenance knowledge can completely avoid such problems.
Second, the correct remedy for the damp led display screen:
1. Use a fan or other tool to completely dry the damp led display screen.
2. The screen body that is completely blown out is energized and aging. 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 aging for 12-24 hours.
d, the brightness (all white) is adjusted to 80%, and the power is aged for 12-24 hours.
e, adjust the brightness (all white) to **, power aging for 8-12 hours.
Third, the led display in storage
1. The air box and the packing box should be kept dry, and the desiccant and dehumidifying medium should be placed. The water vapor packing material should be dried in time and not exposed to water.
2, the screen storage warehouse must be dry, high ground placed industrial dehumidifier.
3. After the wet weather, the stored led display will be lit and detected. If necessary, seek technical support from the manufacturer.
A conclusion for moisture proof :
1.Select high-quality manufacturers to produce high-quality led display with high quality LEDs.
For example ,HXTECH are selecting a high quality LEDs from LED package companies like Cree, Nation star, Refond, KN light, etc.
2. Regularly check and maintain, prevent accidents and improve service life;
3. Technicians develop good habits and learn how to use science.