The "problem" of LED electronic display screen failure revealed

In today's era of information explosion, LED electronic displays are like the "electronic faces" of the city, conveying various information in every corner of shopping malls, squares, stages, etc. But sometimes, these "electronic faces" can also "get angry" and cause various failures, which makes people anxious and angry. Today, let’s take a look at the “culprits” that cause the on-site failure of LED electronic display screens.

1. "Disaster" of environmental factors

Environmental factors are the "number one problem" that causes LED electronic display failure. First of all, temperature has a great impact on the display. Generally speaking, the normal operating temperature range of LED displays is between -20℃ and 50℃. If it goes beyond this range, the display is prone to "strike". In the cold northern winter, if the display screen does not have insulation measures, the internal electronic components will degrade their performance due to the low temperature and may even be directly damaged.

For example, some small LED lamp beads will reduce their luminous efficiency at low temperatures and the screen brightness will become dim. Moreover, if you are in a low temperature environment for a long time, the materials inside the lamp beads are shrinking unevenly, and dead lights may occur. In hot summers, especially outdoor displays, direct sunlight will cause temperatures to soar. If the heat dissipation is not timely, the chips, circuit boards and other components inside the display will overheat, accelerate aging, and even burn, resulting in garbled codes and abnormal color blocks on the display screen. Let you understand how LED light beads work.

Humidity is also a "invisible killer". In humid environments, water vapor in the air will adhere to the surface and internal components of the display. For outdoor displays, rainwater seeping is even more common. Once the water vapor enters the inside of the display, a short circuit will be triggered. Because the circuit boards and electronic components inside the LED display are all precision, the conductivity of water vapor will cause current to flow to places where it should not be, causing damage to the components. In addition, humid environments will accelerate the oxidation of metal components. For example, some metal terminals connecting lines will increase after oxidation, signal transmission will be blocked, and the screen of the display may cause flickering, missing lines and other faults. Analyze the ten differences between indoor and outdoor LED walls for you.

2. "Makeup" of power supply problems

Unstable power supply is a "frequently" of display failures. If the power supply voltage fluctuates too much, it will be too high and too low, the internal components of the display will not be able to stand it. When the voltage is too high, it will exceed the rated voltage range of the component, just like adding too much oil to the car engine, which can easily "burn out" the component. For example, the driver chip may be broken down by instantaneous high voltage, causing the display to fail to display normally. When the voltage is too low, the brightness of the display will drop significantly, and some functions may not start normally, just like the machine does not have enough power. In addition, the quality of the power cord is also critical. If the power cord is too thin or the material is not good, a large voltage drop will occur when the current is transmitted. Just like the water pipe is too thin, the pressure will be insufficient when the water flows to the back. If the voltage received by the display screen is not enough, abnormal working will occur, such as incomplete screen display and color deviation.

3. "Entanglement" of signal interference

In complex electromagnetic environments, signal interference can make the LED display "dirty". Nowadays, various electronic devices are everywhere, such as nearby communication base stations, large transformers, other electronic display screens, etc., which will generate electromagnetic waves. When these electromagnetic waves interfere with the signal transmission line of the LED display, signal distortion will occur. It’s like you are listening to a radio, and there is a high-power electrical appliance next to it, and the sound of the radio will be murmur and intermittent. For the display, signal distortion will cause mosaics, snowflakes, or the color display will be inaccurate. Moreover, if the signal line is not shielded, the interfering signal can easily "take loopholes" and enter the display screen along the signal line, interfering with the normal display signal, making the screen displayed on the display completely inconsistent with the actual content to be displayed.

4. The "pit" of improper installation and maintenance

If the installation process is not done well, subsequent failures will plant the "seeds". If the installation position of the display screen is unreasonable, such as when it is installed in a place where strong light is exposed and no shading measures are taken, the display effect of the display screen will be greatly reduced, and long-term exposure to strong light will accelerate the aging of the display screen. During the installation process, if the screws are not tightened, the frame structure of the display screen is unstable. In the case of wind and rain or vibration, the internal components of the display screen will be loose, and the connection lines will also have poor contact, resulting in abnormal screen display. Provide you with LED display installation guide.

And in terms of maintenance, many people are also prone to ignore it. For example, if an outdoor display screen fails to clean the dust and stains on the surface for a long time, it will affect heat dissipation and block the normal emission of light, making the display effect of the display screen worse. Moreover, if the internal components of the display are not regularly checked, some small hidden dangers will accumulate into major faults. If the damage to the lamp beads is not replaced in time, it will spread and affect the surrounding lamp beads, eventually leading to large-scale display problems in the entire display screen.

5. Summary

There are many reasons for on-site failure of LED electronic displays, but as long as we pay more attention during installation, use and maintenance, and try to avoid interference from these "culprits", we can keep the display in a "spiritual" state. During installation, you must choose the appropriate installation position and take measures to prevent waterproof, moisture-proof and high temperature; during use, you must ensure that the power supply is stable and avoid electromagnetic interference; during maintenance, you must regularly clean the surface of the display screen, check the internal components, and replace damaged parts in time. Only in this way can our LED display better serve us and show a colorful world of information.

Thank you for watching. I hope we can solve your problems. Sostron is a professional LED display manufacturer. We provide all kinds of displays, display leasing and display solutions around the world. If you want to know: The relationship between grayscale and brightness of LED display in conference room. Please click read.

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