LED large screen service life and replacement

The theoretical lifespan of large LED screens is 100,000 hours. If it can be used for ten years according to the instructions of large LED screen manufacturers, the LED screens made in 2008 should also "end of life" this year. If you use it more frequently, you should change it. After all, outdoor high-definition has experienced some people eating "crabs" first, and the technology is relatively more mature. How to upgrade the outdoor LED large screen? Lianhe Huiye Technology will not talk about technical parameters here today. First, if you often pay attention to our platform, it is indispensable to increase your knowledge.

Secondly, more people are already very professional, and there is a saying that can also be used here, "a long illness becomes a doctor". To put it nicely, practice makes perfect, so technology is not the focus here today, we are more talking about how to change the old screen into a suitable model. To upgrade and transform the old screen, you will face a new choice, the quality of the LED large screen, the reputation of the manufacturer, the quality of service of the manufacturer and the case of the manufacturer.

The case mainly depends on the maturity of the outdoor high-definition screen made by the LED display manufacturer. If there is no mature case, no one wants to be the first person to eat crabs. After all, each of them knew exactly what kind of problems and troubles the old screen had brought to them. The specifications used by LED large screens in the past ten years are relatively conventional. The outdoor LED large screens that are frequently purchased and used are nothing more than P16 and P10. The frequency of purchase and use of other P12, P14, P20, etc. is already very low.

In addition to the large-scale ones on the top of high-rise buildings that use P20, P25 or even larger pitches, the ones on the top of high-rise buildings are almost for ultra-long-distance viewing. It is a waste to replace them with high-definition, except for the rich. We describe the upgrading and transformation plan from the following three aspects. 1. Power consumption Upgrade the large LED screen of P16 to the display screen of P8, and the power consumption is almost the same.

In the past, the maximum power consumption of the static P16 display was about 800W/㎡, but now the maximum power consumption of the 4-scan P8 display is about 750W/㎡. If the energy-saving solution is used, the power consumption will be reduced by about 20%, but the main electrical box must be replaced as a whole, because electrical equipment such as air switches and AC contactors also have the number of times of use and life, and the small can not lose the big, this editor It was also mentioned in the previous article on the distribution box. If it is upgraded to a P4 LED large screen, the maximum power consumption will be nearly double that of the P16, and the power consumption will be about 1400W/㎡.

If the energy-saving solution is used, the power consumption will be reduced by about 20%, so the original main cables must be replaced, and the transformer with small capacity needs to be increased. And upgrade the large LED screen of P10 to the display screen of P5, the maximum power consumption of P5 is twice as much as that of P16. Similarly, if the energy-saving solution is used, the power consumption will be reduced by about 20%, so the original main cables must be completely replaced, and the transformer with small capacity needs to be increased.

2. The model (that is, the dot pitch, how many Ps) the old screen before can be changed to any model you want. Usually, the model of our LED large screen has determined the main size of the steel structure, and the steel structure can hardly be modified. If it is modified, the risk to the overall safety of the display is immeasurable. In other words, it means that the steel structure determines what type of high-definition led screen we choose to upgrade to.

LED display manufacturers generally determine the size of the fixed box according to the horizontal spacing of the display when designing the steel structure. For example, if the display screen of P16 is used, the length (width) of the module is 256mm, then the length (width) of the cabinet design is 768mm or 1024mm, and the result is that the square spacing of the fixed cabinet is 768mm or 1024mm. Then the corresponding modules are P8 and P4. Generally, the horizontal length (width) of the module designed by the manufacturer is 256mm, which just corresponds to the size of the P16 module, so the designed cabinet size can be the same.

Similarly, the fixed square spacing on the steel structure is also just corresponding. In terms of density, the density per square meter of P8 has increased by four times, that is, 15625 points/㎡. The density per square meter of P4 has increased sixteen times, that is, 62,500 points/㎡.

If it is a large P16 LED screen of about 8 meters by 5 meters and 40 square meters, when the computer resolution is 1024X768 before, the window only occupies a quarter of the display. After changing to P8, it is basically displayed in full screen. Let’s take a look at the display screen of P10 again. The length (width) of the module is 320mm or 160mm, so the length (width) of the cabinet design is 960mm, and the result is that the square spacing of the fixed cabinet is 960mm. Then it corresponds to the P5 module. Generally, the horizontal length (width) of the module designed by the manufacturer is 160mm, which just corresponds to the size of the P10 module. Then the designed box size corresponds to the fixed square spacing on the steel structure. .

In terms of density, the density per square meter of P5 specifications has increased by four times, that is, 40,000 points/㎡. If it is a P10 large LED screen about 5 meters by 3 meters and 15 square meters, when the computer resolution is 1024X768 before, the window only occupies a quarter of the display. After changing to P5, it is basically displayed in full screen. 3. System and signal transmission part If you are still used to the original system, you can use the original system. If you change to another system, you need to adapt and learn again.

The system itself has no effect on the upgrade of the display screen, but if the resolution of the large LED screen exceeds 1920X1080, regardless of the horizontal width or vertical height, a video splicing processor must be added for splicing. Generally, manufacturers will propose corresponding solutions , the editor here is just a reminder. Including the signal transmission part, a network cable has about 650,000 pixels, which is calculated based on the accumulation of the entire screen. If it is not enough, the number of network cables must be increased. Now there are a few system manufacturers that can provide video playback processors, without wiring, and only need to enable the player to access the Internet to remotely control the display.

Finally, United Huiye Technology still has to return to the issue of steel structure to re-emphasize that the steel structure design and construction drawing stipulates that the service life of the steel structure is only five to ten years in the design requirements, especially for the column structure, the risk will be high. bigger. Then the problem comes again. Many outdoor LED large screen steel structures have not been approved by the design institute for construction, so the reliability of the steel structure cannot be guaranteed in terms of the number of years. If the money is not bad, just replace it as a whole. I spent all the money on the big screen. Is it still a little bit worse? To avoid irreparable consequences in order to save a little cost.

Well, I hope this article is of some use to you. .