Do you know? The "moving" advertising walls that you see through the commercial street every day, the information screens that are updated in real time in the subway station, and even the huge screens that make people excited at the concert are not magic that comes out of thin air. You might ask:​ ​Which mysterious factory did these LED displays that are hard to move away from? ​ ​

As a novice who is just getting involved in this field, I thought that these high-tech products must have come from some secret base in the deep mountains and forests. It was not until later that most of these display screens that made the city "live" come from a hot spot in southern China. Let's keep it aside for now, let's look down slowly.

​​Let’s first solve the most basic question: Why is the location of LED companies so important? ​ ​

Imagine if you want to open a bakery, you must choose a place with sufficient flour supply, right? LED display manufacturing requires more complete industrial chain support. From chips to power supplies, from cabinets to control systems, there are hundreds of suppliers in the entire manufacturing chain. If the factory is built in an incomplete supporting area, the cost of transporting parts alone will be increased by more than 15% - these will eventually be passed on to the product price.

Now I'll give you three key clues:

• Within a radius of 50 kilometers, three core components manufacturers must be gathered.
• There must be mature electronic products export ports in the local area
• Related universities deliver at least 3,000 graduates of optoelectronics majors every year

Have you guessed it? There are only three places that meet these conditions in the country. The most concentrated area is on the coast of the South China Sea at 22 degrees north latitude. The electronics market here trades 60% of the world's display devices every day, and the customs handles containers sent to Tokyo and Seoul every minute.

​​The key point is: How do novices judge the true power of LED companies? ​ ​

A few days ago, a friend who runs a gym asked me that he wanted to install an interactive LED floor tiling screen in the exercise room, but he had no idea how to choose a supplier. I gave him three tricks, and I will share them with you here:

1. ​​Looking at the production workshop is more important than looking at the samples​​
   For truly capable manufacturers, there must be an automated production line in the workshop that can "run by themselves". Just like the assembly line of a car factory, the entire process from patch to aging test is mechanized, so the consistency of such products is guaranteed.

2. ​​Ask a professional question and try it​​
   For example: "How do you solve the problem of heat dissipation and moisture resistance in your outdoor screen? "Reliable technicians will take out the structural section diagram and point to the heat dissipation channel and glue filling process to explain the principles to you, instead of just saying "Our product quality is good.""

3. ​​Don't just look at ISO for certification​​
   Now even pancake stalls can get ISO certificates. We must focus on whether there are certifications in special fields such as stadiums and rail transit. These are the tests of real swords and guns.

Speaking of this, someone may ask: "Where are these powerful LED companies in specific locations? "In fact, from the intersection of Shibuya, Tokyo to the dome of the Dubai Shopping Center, many amazing display projects, all point to the same coordinate - a science and technology park in western Shenzhen. This is the world's most complete LED industry chain, and even the owner of a street restaurant can talk to you about the chip manufacturing process.

​​Give a real case​​
Last year, a Korean TV station built a virtual studio and needed to deliver 300 square meters of special arc LED screens within 20 days. The reason why Shenzhen companies that take orders can win this order is not only because of their excellent technology, but more importantly, their R&D center and factory are in the same park. From modifying the design plan to trial production of samples, engineers can go to the workshop to debug in 15 minutes while riding a shared electric car. This efficiency advantage is simply something that companies with dispersed layout cannot do.

However, I would like to remind everyone that if you choose an LED company, don’t fall into the “geographical position theory”. Just like not all the crabs raised in Yangcheng Lake are delicious, there are also uneven manufacturers in the same industrial park. The key is to see​ ​Is there any independent core technology developed? Can it provide a complete set of solutions from installation to maintenance?​​. For example, although some companies are located at a biased point, they can still make outdoor screens with service life of more than 100,000 hours with their exclusive cooling system.

The editor finally said the truth: finding an LED display supplier is like finding a marriage partner. Just looking at "where to live" is not enough, but also looking at "what to do at home". Next time you see a big screen that makes people shine on the street, you might as well ask more: "Where does this screen come from? "Maybe we can dig out a hard-core enterprise hidden deep in the industrial chain.

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