Alas, did you pass by the mall and see the cool three-story large screen? Do you know why a screen can cost millions at any time? At a concert in Guangzhou last year, the LED wall in the center of the stage suddenly blacked the screen. Later, it was found that the driver chip was burned - just the parts the size of a fingernail would cost more than 8,000 yuan to replace one! Today I will take everyone to explore,What is the price of LED display?​？

1. The heart is the most expensive: the core components are comparable to luxury car engines

You may not believe it, the most precious things in LED screens are​Rice grain size lamp beads​. This thing is like a sports car engine, which directly determines how long the screen is.

• ​Imported chips are more expensive than gold​: Japanese chips used for high-end screens cost 3 times that of domestic products, but they can be used for five years without fading.
• ​​Driver circuit hidden mystery​: Last year, a driver board bought by an e-sports hall in Shenzhen was greedy for cheap, and it burned 18 yuan in three months, and the maintenance fee was enough to buy half a new screen.
• ​​Heat dissipation system black technology​: Have you ever seen anyone installing air conditioners on the screen? The liquid cooling system for high-end outdoor screens, this set of equipment alone accounts for 15% of the total screen cost.

Think about it, a P2.5 indoor screen is stuffed with 250,000 lamp beads per square meter. This is not a display screen, it is simply a wall with money!

2. Pixel density war: the big price behind small pitches

To put it bluntly, the "small spacing" that is hyped on the market now​Schedule parts as big as sesame seeds​​。

• ​​The smaller the P value, the more money it is​: The P1.25 screen is more than 4 times more expensive than the P3. For every 0.1mm reduction, production costs soar by 20%.
• ​​Absolute level required​: The patch machine must straighten the lamp beads like an embroidery, and the error exceeds 0.02 mm is considered a defective product.
• ​​Amazing repair costs​: A curved screen in P1.8 in a shopping mall has broken a pixel point, and the repairman has to operate it with a microscope for 2 hours.

This is like carving on a mobile phone screen. Do you think this labor fee can be cheaper?

3. Waterproof and collision avoidance are not just talk

Don't think that the outdoor screen is just an iron shell,IP65 protection levelThat's what's really money:

• ​Sealing rubber​: One meter of military-grade waterproof glue requires 200 grams, so you can buy three brand lipsticks
• ​​The box material is particular​: The box of aviation aluminum-magnesium alloy is resistant to typhoons and corrosion, and the cost is 8 times that of ordinary iron boxes.
• ​​Radiation and dustproof black technology​: The self-circulating air duct system is more complex than the household air conditioner. This patented technology alone is worth 10% of the screen price.

Last year, when typhoon "Mangosteen" passed, the outdoor screen of a building in Shenzhen could still be used after soaking in water for three days. How much does this armor cost?

4. R&D costs are spread in each screen

Those laymen who say "Isn't it just shining?" must not know.The software system on the screen is more brain-burning than hardware​：

• ​Image processing algorithm​: It took a major manufacturer three years to adapt 4K video to a special-shaped screen in real time.
• ​Color calibration technology​: Professional-grade screens need to be adjusted one by one, and it takes two weeks for engineers to adjust a 10㎡ screen.
• ​Intelligent control system​: AI chip that can automatically adjust brightness, the optical chip cost is enough to buy a Porsche

This is like a mobile phone system, invisible code is the most valuable!

5. Installation and maintenance are invisible rich people

Do you think it's all done after buying the screen?​​You can buy another half of the screen for installation fee​​Believe it or not?

• ​​Steel structures cost life​: 200㎡ outdoor screen, 30 tons of steel must be used for support frame alone, and the welding points are denser than honeycombs
• ​​Suspended like a blockbuster film​: You have to hire a professional rock climbing team to install a high-altitude screen, and your daily salary will be worth three months of your salary
• ​​7×24 hours standby​: The maintenance team is ready for emergency repairs at any time. Three engineer tents were prepared at a New Year's Eve party.

Last year, a brand was launched at the press conference, because it did not buy extended warranty services, and the screen flashed in the middle of the night and could not find someone to repair it, which directly lost one million orders.

​Personal opinion​：
To be honest, LED screens are expensive and reasonable. Just like buying a mobile phone, the experience of a thousand-yuan phone and a flagship phone is very different. The key is to think clearly about what you want - if it is a promotion for a small roadside shop, the entire second-hand screen is also very good; but if it is an international event or a luxury product launch conference, you still have to pay for it. When inquiring next time, remember to let the supplier take72-hour aging test reportand​Five-year decay curve​Pattack on your face, this is the hard guy who is not afraid of fire!

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