What Should I Do If The LED Display Screen Breaks?


With the continuous development of science and technology, LED display screens, as an important medium for modern information dissemination, have been widely used in various occasions, such as commercial advertising, public information displays, sports events, etc.

Its high brightness, high definition, and bright colors make LED display screens the focus of attention. However, like other electronic devices, LED displays will inevitably encounter various problems during use, among which the problem of screen blur is particularly common and troublesome.

1. The definition and expression of breaks

LED display screen breaks to the abnormal display phenomenon that occurs on the display screen during use. This abnormality usually manifests itself in the following situations:

  • Irregular color blocks and lines: Color blocks or lines of different colors, shapes, and sizes will appear on the screen. These color blocks and lines appear randomly and may cover the entire screen or only appear in a certain part of the screen.

  • Flicker phenomenon: In some cases, the content on the display will flicker rapidly, which may be caused by problems with some parts inside the display.

  • The display content is confusing and distorted: Images or text that should be displayed clearly become blurred, or there are color distortions, image distortions, etc.

  • Failure to display properly: In severe cases, the display may completely fail to function properly and be unable to display anything.

2. Possible causes of the breaks LED display screen

There are many reasons why LED display screens appear breaks. Some possible reasons will be discussed in detail below to better understand and deal with these problems.

1). Hardware failure

  • Driver board problem:

The driver board is one of the key components of the LED display. It is responsible for controlling the lighting and color changes of each LED lamp bead. If the driver board fails, such as chip damage, circuit short circuit open circuit, etc., it may cause blurring in part or all of the display area.

  • Power board failure:

The power strip provides a stable power supply to the display. If there is a problem with the power board, such as unstable output voltage, aging or damaged power lines, etc., it may cause insufficient or unstable power supply to the display, which may lead to blurred screens.

  • LED lamp bead damage:

LED lamp beads are the light-emitting components of the display screen. If the lamp beads are damaged or aged, it may cause problems such as uneven brightness, color blocks, or dark areas on the display screen. Reasons for lamp damage may include overheating, overvoltage, excessive current, or prolonged use.

2). Software problem

  • Control software failure:

The control software of the display screen is responsible for converting the input signals into instructions that the display screen can recognize. If there is a fault in the control software, such as a program error, version incompatibility, or virus infection, the display may not work properly and may appear blurry.

  • Setting error:

During the display setting process, if certain parameters are set incorrectly, such as brightness, contrast, color correction, etc., the display may not perform well and may appear blurry. These setup errors can be caused by improper operation, misoperation, or failure to follow the manufacturer’s recommendations.

3). External interference

  • Electromagnetic interference:

If there is a strong electromagnetic field in the environment where the display is located, such as near high-voltage wires, radio transmission towers, etc., it may interfere with the normal operation of the display. This interference may cause the display content of the display to be abnormal and cause screen distortion.

  • Signal interference:

If the signal transmitted to the display is interfered with, such as signal line aging, poor contact, signal source problems, or interference from other signal sources in the surrounding environment, etc. it may cause errors or abnormalities in the display content of the display, leading to screen blur.

3. Steps to deal with the problem of LED display screen breaks

1). On-site inspection and preliminary judgment

First, conducting an on-site inspection is the first step in solving the problem. Specific steps are as follows:

  • Check the power and signal connections: Make sure that the power and signal cables of the display are properly connected and are not loose or damaged.

  • Observe the fault manifestations: Carefully observe the fault manifestations of the display screen, such as whether irregular color blocks, lines, flickering, etc., appear and whether the display content is chaotic, distorted, or cannot be displayed normally. These phenomena help to initially determine whether it is a hardware or software problem.

2). Hardware troubleshooting and processing

If it is initially determined to be a hardware failure, you need to perform the following steps:

  • Check core components: Carefully check core components such as the driver board and power board to see if there are any signs of damage or burns. Damage to these parts may cause the display to not function properly.

  • Replace damaged parts: If damaged parts are found, they need to be replaced in time. During the replacement process, be sure to use parts that are identical or compatible with the original and follow proper installation procedures. After replacement, test whether the display is working properly.

  • Check the LED lamp beads: LED lamp beads are an important part of the display screen. If the lamp beads are damaged or aged, it may cause problems such as uneven brightness and color blocks on the display screen. Therefore, it is necessary to check whether the LED lamp beads are intact. If they are damaged or aged, they need to be replaced or repaired.

3). Troubleshooting and handling of software problems

If it is initially determined to be a software problem, you need to perform the following steps:

  • Check the control software: Make sure the control software is installed correctly, and the version is compatible with the display. If the software is installed incorrectly or the version is incompatible, the display may not work properly.

  • Reset parameters: Try to reset the parameters of the display, such as brightness, contrast, etc. Sometimes, incorrect parameter settings may cause the display to appear blurred.

  • Update control software: If the above steps cannot solve the problem, you can try updating the control software to the latest version. New versions of the control software may fix problems existing in older versions.

4). Investigation and handling of external interference

If none of the above steps resolves the problem, it may be caused by external interference. The following steps are required:

  • Check the surrounding environment: Check the environment around the display screen to see if there is a strong electromagnetic field or signal interference source. These interference sources may come from other electronic devices or surrounding buildings, etc.

  • Change the installation location: If you find a source of interference, try moving the display or changing its installation location to see if the interference can be eliminated.

  • Use shielding equipment: If the source of interference cannot be eliminated, you can use shielded wires, filters, and other equipment to reduce the impact of external interference on the display. These devices can absorb or isolate interfering signals and improve the stability of the display.

4. Measures to prevent the problem of breaks LED display screens

In order to ensure the stable operation of the LED display and reduce the occurrence of screen breaks, we need to take a series of preventive measures. Here are a few key steps and considerations:

  • Shop for reliable quality LED displays and accessories

When purchasing LED displays, you should choose products from well-known brands and good reputations. Ensure products have high-quality materials, sophisticated workmanship, and reliable performance.

At the same time, when purchasing accessories such as driver boards, power boards, and LED lamp beads that match the display, you should also pay attention to quality and choose accessories that are the same as or compatible with the original ones.

  • Perform regular maintenance and inspections on displays

Regularly clean the surface and internal dust of the display to maintain its cleanliness and heat dissipation performance.

Check whether the connections of the power supply and signal cables are firm, and ensure that the power cables and signal cables are in good contact and are not loose or broken.

Regularly check the hardware and software status of the display, such as the working status of core components such as the driver board, power board, and LED lamp beads, as well as the version and setting parameters of the control software.

  • Protect the display from external interference.

Install the display away from strong electromagnetic fields and signal interference sources, such as high-voltage lines, transformers, radio transmission towers, etc.

Use good quality power cords and signal lines to ensure good anti-interference performance and reduce the impact of external interference on the display.

When necessary, use devices such as shielded wires or filters to reduce external interference. These devices can absorb or isolate interfering signals and improve the stability of the display.

  • Properly use and maintain displays.

Avoid long-term high-brightness displays to reduce the loss of LED lamp beads and the heat generated by the display.

Avoid switching the display on and off frequently to reduce impact and damage to the display.

Follow the display’s use and maintenance manual, and do not change setting parameters or perform illegal operations.


In short, the treatment and solution of the LED display screen breaks requires us to start from many aspects. We must not only master the correct processing methods and steps but also pay attention to prevention and daily maintenance. Only in this way can we ensure the stable operation of the LED display and provide a strong guarantee for the effective dissemination of information.

Finally, if you want to know more about LED displays, please get in touch with us.

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