Want to install an LED electronic screen but don’t know where to buy it? When I saw various advertisements, I said that I was "the first in the industry", but after installing it, I found that the screen always splashed? Is this scene familiar? My friend stepped on this pit when he opened a shopping mall last year. He spent 230,000 yuan to see the brightness of the screen, and even the promotional advertisements were not clear. Today, let’s talk about the tips for purchasing LED electronic screens. You will be more 80% of decoration bosses after reading this!

​​Must-read for beginners: Three key points to choose​​

A guy who runs a gym asked me two days ago: "Why are other people's electronic screen videos so smooth? Mine is like watching PPT? "The problem lies in​ ​Refresh rate​​On this parameter. It’s like the “silky” of a mobile phone screen. Don’t buy screens below 1920Hz. A shopping mall bought cheap screens, and the athletes’ running screens were all distorted, and they were finally forced to spend double the money to reinstall.

Let's talk about it​​Brightness adjustment​​This matter. Have you ever seen the ad screen that looks like it is turned off during the day? It is recommended to choose an indoor screen of 800-1200cd/m². If it is installed in a semi-outdoor environment like a window, you must choose an intelligent dimming model that can reach 4000cd/m². A milk tea shop owner bought a fixed brightness screen with a cheap price, but it was so bright that it was dazzling at night and was complained by the residents next door to dismantle the machine.

The third focus is​​Protection level​​. Have you heard of the bad things about the screen splashing in the rainy day? There is a hot pot restaurant that installed the screen on the terrace that does not meet the IP65 protection and it will be scrapped in half a year. Remember: For equipment with two words outdoors, the waterproof and dustproof indicators must meet the standards!

​​The major questions in installation and maintenance​​

Maybe you will ask: "It's all done after buying the screen?" "Alas, there is a key point here——​ ​Installation plan determines service life​​. Last year, a commercial center installed a 200㎡ large screen, and the quick unboxing body selected saved 17 days of construction than the traditional structure. This aluminum-magnesium-zinc alloy box is only 8.6kg per unit. The master said that now the maintenance module is changed, and there is no need to use a scaffolding, and it can be done with a ladder.

How to calculate the maintenance cost? For example: A rental screen used in a theater, the quick disassembly structure reduces the single maintenance cost from 3,800 to 600 yuan. Focus on whether there are any suppliers​ ​24-hour technical response​​, It’s not a joke to suddenly have a black screen in the middle of the night. The screen of a bar broke down and the supplier came the next day, which directly lost three party income.

​​Avoiding pits: A list of common misunderstandings​​

The most favorite mistake for beginners is to only look at the price. A screen bought at a cheap picture of a famous internet bookstore has a 0.5mm pixel gap, and the words are all redocks when viewed 5 meters away. Here is a comparison table:

There is also an invisible pit​​Power supply solution​​. The screen of a supermarket suddenly turned black, and it was found that the power module cut corners. Remember to ask clearly about the redundant power supply configuration, dual power supply is the best.

​​Technical flow analysis: What kind of black technology is low brightness and high gray? ​ ​

You may be curious: "Why are those high-end shopping mall screens not dazzling at night? "The key is​ ​Low bright high gray technology​​. Simply put, when the screen brightness drops to 20%, the screen details can still be seen clearly. The ordinary screen was already gray at this time. The actual data shows that the screens using this technology have a 73% increase in image hierarchy in dark light environments.

There is a very typical case in the gymnasium: the full brightness is 7500cd/m² during the competition, and the award ceremony is automatically adjusted to 1200cd/m², which saves electricity and is not dazzling. This intelligent adjustment function is now standard for high-end screens.

​​Revelation of the implementation case​​

Let’s take a look at the application effects of real scenes:

• A certain international airport uses curved screens to replace traditional light boxes, and the advertising update efficiency is increased by 40 times.
• The 86% transmissibility window screen of Southeast Asian commercial centers has driven a 29% increase in store customer flow
• Stadium fenced screen withstands the test of heavy rain, running zero faults in season

There is a counterexample that is worth mentioning: the cheap screen bought by a real estate sales office had a color block that fell off on the day of its opening. Later, it was discovered that it was made of inferior packaging glue. So remember that production process is more important than parameters!

​​Editor's opinion​​
Now, is it reliable to buy LED electronic screens? The key is to find manufacturers with monthly production capacity exceeding 10,000 square meters and strict quality inspection procedures. I heard that some manufacturers do not even perform aging tests, and this kind of screen will definitely have problems if it is used for half a year. Next time I go to inspect the supplier, remember to focus on whether their production workshop has a fully automatic inspection line. This is much more than sales bragging!

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