مقدمة
In outdoor environments, يعرض الصمام face the test of various bad weather conditions.
Have you ever thought about what will happen to your LED display if it is not waterproof enough? This article will answer them one by one.
جدول المحتويات
Situation 1: LED display circuit short circuit and equipment damage
1). Circuit board water ingress leads to a short circuit and burn:
Just like people get colds when they are caught in the rain, the circuit board of the LED display will also get “sick” when it gets water in.
Once rainwater seeps in, the components on the circuit board are prone to short circuit, just like the wire is soaked in water, the current does not follow the normal route, and the components are easily burned.
For example, the outdoor LED display of a chain hotel in Dongguan, Guangdong, China, due to insufficient waterproof performance, was flooded in heavy rain.
Causing the circuit board to short-circuit and smoke, and even triggering the hotel’s fire protection system, causing economic losses of more than 100,000 yuan.
2). The power supply system is damp, which is prone to failure:
The power supply system is like the “heart” of the display. If it is damp, it will “get sick”.
After being affected by moisture.
The insulation performance of the components inside the power supply will deteriorate, just like the insulation layer of the wire is broken, which is prone to leakage and short circuit.
In this way, the voltage output by the power supply is unstable, and the display screen may display abnormally or even not work at all.
3). Damage to key components such as control cards and modules:
The control card is like the “brain” of the display screen, and the module is the basic unit for displaying the picture.
If the waterproofing is not good, rainwater will seep in, the chip of the control card may short-circuit, and the lamp beads of the module may not light up, or the colour display may be wrong.
Just like there was a display screen before, because the waterproof glue was aged, after rainwater entered.
The chip pins of the control card short-circuited, and the lamp beads of the module appeared in a row of lights, which could only be repaired by replacing parts.
Situation 2: Abnormal picture and display failure of the LED display screen
1). The screen flickers, black screen, and flower screen:
When the waterproofing performance is insufficient, the electronic components inside the display screen are prone to moisture, resulting in unstable signal transmission.
For example, when heavy rain comes, rainwater may seep into the inside of the display screen, interfering with signal transmission, causing the screen to flicker and display a black screen.
If rainwater seeps into the power supply system, it may also cause a short circuit, causing the screen to go black.
For example, in 2011, a real estate developer installed a double-sided screen in Ishinomaki City, Miyagi Prefecture, Japan.
Because the local area was close to the earthquake-stricken area, the environment nearby was bad after the earthquake, and the display screen was affected by moisture, causing flickering.
2). Colour distortion and uneven brightness:
The colour and سطوع of the display screen are precisely controlled by the internal electronic components.
If the waterproof performance is not good, moisture may cause the performance of these components to deteriorate.
Uneven brightness may be caused by the connection between the modules being affected by moisture, resulting in uneven current distribution, making the brightness of some modules lower than that of other modules.
3). Inconsistent brightness and colour difference between وحدات:
LED display screens are composed of multiple modules, and each module should display a consistent picture.
However, if the waterproof performance is not good enough, rainwater may seep into the connection between the modules, resulting in differences in brightness and colour between the modules.
For example, if the outdoor LED display screen at William Reyes Elementary School in Saipan has poor waterproof performance.
It is easy to have inconsistent brightness and colour differences between modules in an environment with high humidity and frequent typhoons.
Situation 3: The safety hazards of LED display screens are upgraded
1). Leakage causes the risk of electric shock, affecting pedestrian safety:
The LED display screen has poor waterproof performance. Once rainwater pours in, the circuit board is prone to a short circuit if there is another problem with the grounding system.
For example, if the grounding wire is loose or broken, the leaked electricity may hurt people.
It’s like walking on the road and suddenly encountering a leaking LED display screen. That’s really bad luck. At the least, you will be scared, and at the worst, you may be in danger of life.
2). Fire caused by a power short circuit:
عندما مزود الطاقة system of the LED display screen is damp, the insulation performance of the components inside will deteriorate, and it is easy to short-circuit.
When a short circuit occurs, the heat generated instantly can ignite the surrounding combustibles and cause a fire.
For example, the outdoor advertising screen in the United States caused a fire due to poor waterproofing. Fortunately, it was discovered early; otherwise, the consequences would be disastrous.
If the quality of the power cord is worse, such as the copper core is impure and the insulation layer is thin, the risk of fire is even greater.
3). There are legal responsibilities and compensation risks:
Once an accident occurs due to a problem with the display screen, whether it is injury or burns, the owner or operator of the LED display screen must bear the responsibility.
For example, if someone is injured by electricity or the fire burns the surrounding houses, the victim will definitely ask the owner of the display screen for compensation.
At that time, not only will he have to pay money, but he may also face legal sanctions. It is really not worth the loss.
Situation 4: Customer's brand image and advertising loss
1). Screen failure affects the advertising playback effect:
Poor waterproof performance makes the screen prone to problems. For example, the screen flickers, black screen, flower screen, or colour distortion, uneven brightness, all of which will make the advertising content look blurry and messy.
Just like seeing an advertising screen on the side of the road, the picture keeps flickering, and the advertising content can’t be seen clearly at all, then the effect of this advertisement is greatly reduced.
2). Poor audience experience and increased customer complaints:
When audiences see such a frequently faulty screen, they will definitely be unhappy and have a very poor experience.
Over time, customer complaints will come like snowflakes.
For example, the outdoor advertising screen of a brand store often fails. When customers pass by and see it, they are not only not interested in the advertising content.
They will also think that this brand can’t even make an advertising screen well, and their impression of the brand will be greatly reduced.
3). Long-term downtime leads to business losses:
Once the screen fails, repairs are not done overnight. It may take several days or even longer to repair it.
During this period of time, the screen is down, and the advertisement cannot be played. The merchant’s advertising expenses are wasted, and business opportunities are missed.
For example, on a busy commercial street in Sydney, the outdoor advertising screen of a newly opened coffee shop failed after a heavy rain due to insufficient waterproof performance and was shut down for a whole week.
Missed the golden promotion period at the beginning of the opening, resulting in customer flow far lower than expected, and huge business losses.
Case 5: High maintenance cost of the LED display screen and reduced operating efficiency
1). Frequent maintenance, labour and material costs surge:
Poor waterproof performance, the screen is prone to problems, which require frequent maintenance. Professionals must be hired for each maintenance, and the labour cost is not cheap.
Add to that the material cost of replacing parts, and the cost goes up all of a sudden. Moreover, frequent maintenance will affect normal use.
Each maintenance takes a lot of time, during which the screen may not work properly, delaying normal advertising playback or other uses, and indirectly leading to reduced operational efficiency.
2). Replacing modules or circuit boards causes long-term downtime:
Once a module or circuit board is broken, the maintenance time is long. These parts cannot be replaced at will, and it takes time to find accessories and repair them.
During this period, the screen is down, the advertisement cannot be played, and business opportunities are lost. Long-term downtime not only affects the normal delivery of advertisements.
It may also lead to a decrease in customer satisfaction, which in turn affects the long-term cooperative relationship with customers and brings more potential losses to users.
3). Higher maintenance costs outside the warranty period:
If the display is out of warranty, the maintenance cost will be higher. The manufacturer no longer repairs for free, and all costs must be borne by you.
Moreover, for repairs outside the warranty period, the price of accessories may also increase, and the repair service may also be more expensive.
This means that users need to invest more money to maintain the normal operation of the display screen, which is undoubtedly a heavy burden for some users with limited budgets.
6. So, how to improve the waterproof performance of LED?
First of all, you have to choose a good product with a protection level of at least IP65.
This level means that the screen is dustproof and waterproof, and even if it encounters a rainstorm, water splashes can’t easily get in.
Such a screen can be stable outdoors, whether it is a storm or dusty, with fewer failures, and it is reassuring to use it.
Sealing, drainage, anti-corrosion and other designs are also critical. The seal is tight, and the interfaces and gaps must be sealed with glue and pads to prevent rainwater from slipping in.
The drainage design is reasonable, such as opening a small hole at the bottom of the screen to allow rainwater to flow out smoothly and not accumulate water inside.
Anti-corrosion is also important. The outer shell and internal structure are made of stainless steel or aluminium alloy.
These materials are corrosion-resistant and can withstand humid environments, so the screen can be used for a long time.
Regular inspection is also very important. Check whether the screen frame and sealant are aged every quarter, and replace them in time if there are any problems.
It is best to make a maintenance record and write down every inspection and repair, so that hidden dangers can be discovered in advance.
And small problems can be avoided from becoming big troubles, so that the screen can always work normally.
Before the rainy season, the screen must be fully inspected and maintained.
Focus on the waterproof seal, drainage system and power system, and reinforce them in time if there are any problems.
For example, reapply sealant and replace waterproof parts. In this way, the screen can work normally in the rainy season and will not malfunction due to waterproof problems, making it safer to use.
7. الخاتمة
Through the introduction of this article, I believe you have a deeper understanding of the importance of the waterproof performance of LED display screens.
Waterproofing is not only for the stable operation of equipment, but also for safety and commercial benefits.
وأخيرًا، إذا كنت تريد معرفة المزيد عن شاشات العرض LED، فيرجى الاتصال بنا.
Other articles you may be interested in:
