Alas, have you always received private messages in the background recently and asked: "Editor, the company wants to change the large screen in the conference room. Where should I buy this LED display? "Don't worry, today we will break it and talk about this. Just like buying clothes online, you need to look at the store ratings. You have to learn to "just the way" when buying a display screen.

Three most easy pitfalls for beginners to step on

Lao Zhang, a purchasing manager who just entered the industry, complained to me: "I bought the screen last month, and only after installing it, I found that the reflection during the day was severe! "What do you think? He didn't pay attention at all​ ​Brightness parameters​ ​. Buying an LED screen is not a choice, you have to remember these key points:

1. ​​Brightness pit​ ​: Use 4000cd/m² outdoor screen indoors, not only do you double the electricity bill, but the employees' eyes are almost blinded
2. ​​Refresh rate pit​ ​: Screen below 1920Hz, it is embarrassing to take a photo and post it on WeChat Moments
3. ​​After-sales pit​ ​: Some sellers pretend to be dead after collecting money, and they had a black screen in the middle of the night, and there was no one to answer the phone.

(Are you also hit it? Raise a hand in the comment area)

What hard indicators do experts look at?

I visited a mysterious factory last week (they don’t allow me to say the name), which was an eye-opener. The technical director told me with the detector:"​ ​This line of water depends on the real skill.​ ​". The screens in their workshop:

• ​​Refresh rate ≥3840Hz​ ​(Silky than e-sports monitors)
• ​​Intelligent dimming system​ ​(It can adapt from the basement to the glass curtain wall conference room)
• ​​20,000 hours of life​ ​(Counting 8 hours a day, it's almost 7 years long)

The most amazing one is​ ​Full process quality inspection line​ ​, each screen needs to pass 38 inspection processes. The person in charge said: "We have a monthly output of 10,000 square meters, and we can't play without this system."

The hidden rules that only old customers around the world understand

Do you know why the fenced screens in Tokyo Olympic venues can withstand the typhoon? I heard it was used​ ​IP65 protection + aviation aluminum​ ​. There is also the curved advertising screen in Singapore, with a curve of 0.1° and the splicing seams are thinner than hair. These projects teach us:

1. ​​See certification​ ​: ISO9001 is the bottom line, CE/CCC is the real guarantee
2. ​​Look at the case​ ​: has served manufacturers in 110 countries and handled various strange needs
3. ​​See the service​ ​: A 24-hour response technical team is more reliable than a mother

(Don't laugh, there is really a customer who calls at 3 a.m. to ask debugging questions)

Buy a screen or a service?

Last year, a shopping mall held its anniversary celebration and temporarily installed interactive floor tiles screens. Reliable manufacturers shipped directly​ ​Quick disassembly box​ ​, took the engineer to stay on site for three days. What do you think? The traffic volume increased by 40% on the day of the event, and it was worth spending!

So, buying an LED screen is actually buying an "insurance". Those who are outrageously low are 80%​ ​Lifetime of lamp beads​ ​or​ ​Power supply module​ ​Cut corners. After six months, the strobe repairs will be started, and the money saved will be paid in long ago.

If I ask, when buying things these days, you have to identify the "three-have" manufacturer:​ ​Have technology, production capacity and responsibility​ ​. Next time, someone will brag about the "lowest price on the entire network" to you, and directly give him three questions: How big is the workshop? How many teams are there after-sales service? What benchmark projects have you done in the past three years? Make sure to let the scammers show their true colors!

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