Haze on outdoor LED electronic display harm
Time:2018-12-26
Views:47
We often see the gray sky in the morning, in fact, is a kind of thing called haze to cover.It is estimated that many people do not know what haze is. Its main components are formed by the mixture of sulfur dioxide, nitrogen oxides and inhalable particulate matter, the first two gaseous pollutants, which combine with fog to make the sky suddenly gray.Actually, fog is a non-toxic and harmless natural phenomenon, and the formation of haze is mainly the result of the combined action of a large number of suspended particles in the air and meteorological conditions.Haze is often accompanied by the emergence of haze at the same time, water vapor, static wind, temperature inversion, condensation nucleus and other conditions are indispensable.
Toxic components in haze not only seriously endanger people‘s health, but also have a great impact on outdoor LED screen operation.In fact, we can distinguish haze into fog and haze, because the two main hazards to the display screen are different:
Harm of fog to outdoor display screen
Fog is formed by condensation of water vapor in the air.That is to say, the humidity in the air is relatively high, which will cause the LED screen to be wet.Excessive humidity will cause the PCB board, power supply, power cord and other components of the display screen to be easily oxidized and corroded, or even cause a short circuit, thereby causing a fault.
02 hazards of haze on outdoor display screens
Haze is a collection of suspended dust and various small particles in the air, among which the suspended dust particles in the air are the core substance of haze.If long-term under the influence of the haze, will all kinds of fine dust in the air by a vent into the device, for equipment such as fan can accelerate wear and damage, dust will fall within the display control device on the surface, not only reduces the screen so heat and insulation performance, will also accelerate display aging, affect the normal life.
Then, how to make the display screen able to withstand the test in the haze weather for a long time requires users and engineers to pay more attention to the purchase and maintenance:
1. First of all, in the process of purchase, users must see whether the display screen meets the dust level required by the environment.In terms of dust prevention, the international standard is ip0x-ip6x, which is a design grade to prevent foreign matter invasion. If it is installed in northern areas with more dust and haze weather, its front and back protection grade must reach IP65, that is to say, it must adopt a complete dust prevention structure, that is, it is sealed in the state of spraying water.
2. Be sure to pay attention to whether the PCB board of LED display screen has been treated with anti-corrosion treatment, such as three-layer anti-paint coating on the surface;Whether the power supply and power cord are of high quality accessories;And check the most vulnerable to corrosion of the screen body welding, whether the anti-rust treatment.
3. In the process of daily maintenance, dust must be removed regularly to avoid short circuit caused by dust absorption of moisture in the air in humid weather and mildew of PCB boards and electronic components.
Toxic components in haze not only seriously endanger people‘s health, but also have a great impact on outdoor LED screen operation.In fact, we can distinguish haze into fog and haze, because the two main hazards to the display screen are different:
Harm of fog to outdoor display screen
Fog is formed by condensation of water vapor in the air.That is to say, the humidity in the air is relatively high, which will cause the LED screen to be wet.Excessive humidity will cause the PCB board, power supply, power cord and other components of the display screen to be easily oxidized and corroded, or even cause a short circuit, thereby causing a fault.
02 hazards of haze on outdoor display screens
Haze is a collection of suspended dust and various small particles in the air, among which the suspended dust particles in the air are the core substance of haze.If long-term under the influence of the haze, will all kinds of fine dust in the air by a vent into the device, for equipment such as fan can accelerate wear and damage, dust will fall within the display control device on the surface, not only reduces the screen so heat and insulation performance, will also accelerate display aging, affect the normal life.
Then, how to make the display screen able to withstand the test in the haze weather for a long time requires users and engineers to pay more attention to the purchase and maintenance:
1. First of all, in the process of purchase, users must see whether the display screen meets the dust level required by the environment.In terms of dust prevention, the international standard is ip0x-ip6x, which is a design grade to prevent foreign matter invasion. If it is installed in northern areas with more dust and haze weather, its front and back protection grade must reach IP65, that is to say, it must adopt a complete dust prevention structure, that is, it is sealed in the state of spraying water.
2. Be sure to pay attention to whether the PCB board of LED display screen has been treated with anti-corrosion treatment, such as three-layer anti-paint coating on the surface;Whether the power supply and power cord are of high quality accessories;And check the most vulnerable to corrosion of the screen body welding, whether the anti-rust treatment.
3. In the process of daily maintenance, dust must be removed regularly to avoid short circuit caused by dust absorption of moisture in the air in humid weather and mildew of PCB boards and electronic components.
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