Have you also made this mistake - browsing the shopping website to see the sales ranking, but the LED screen you bought either flickers or has serious color difference? To learn how to quickly increase followers for newbies, you must first understand the rules of the platform. When choosing a display screen, you must first understand the industry rules. Today we are going to talk about the truth, and I guarantee that you can avoid 80% of the purchasing minefields after listening to it.

​​Pour cold water on it first​ ​: Those who talk about "imported chips" and "military quality" all day long, eight out of ten are playing word games. A truly good screen depends on actual measured data, such as this one——​ ​Don’t buy a screen with a refresh rate lower than 1920Hz​ ​! I’ve seen too many store signboards that display videos full of shadows, and it’s because of this parameter.

Three tricks for screen viewing by experts

1. ​​Feel the frame seams​ ​: The gap between the cabinets of a good screen can be controlled within 0.5mm, and there will be no lag when a fingernail passes through it.
2. ​​Look at white uniformity​ ​: Let the seller broadcast an all-white picture live, and those with dark spots or color patches can pass directly.
3. ​​Measure heat dissipation efficiency​ ​: Touch the heat sink half an hour after turning on the computer. If it is hot, it means the heat dissipation design is not up to standard.

There is a real case: a supermarket chain bought a batch of low-priced screens, but within six months, 37% of the screens had module necrosis. Later, it was discovered that the thickness of the heat dissipation aluminum material was cut corners, and the money saved was not enough to pay a fraction of the maintenance fee.

The choice dilemma between online and offline

Here’s a trick: ask to see the manufacturer’s​ ​Production workshop live broadcast​ ​! Anyone who dares to show you the assembly line at least means that it is not an OEM workshop. Especially for outdoor screens, manufacturers who do not have their own spray painting workshops are recommended to blacklist them directly.

Four sets of must-ask soul questions

1. "How many years is the warranty for the control card? "(Things that are guaranteed for more than 3 years are considered reliable)
2. "How to deal with water ripples on rainy days? "(Professional after-sales service will be on site within 24 hours)
3. "What is the brightness adjustment range? "(Do not consider indoor screens below 800cd/m²)
4. "Can you provide project cases of the same model? "(Live video with time watermark required)

I used this trick last week when I helped a friend check the large screen in the gymnasium, and found out on the spot that there was an area with a brightness difference of 15%. The manufacturer just replaced it with a new module without saying a word. Anyone who doesn't know the industry will definitely be fooled.

When it comes to brands, the editor feels that it's like looking for a partner - don't just listen to the matchmaker's boasts, you have to look at the actual actions. Those who dare to slap quality inspection reports on your face and dare you to make surprise factory inspections at any time are better than those who only send beauty photos. Remember, the price difference of a good screen will be made up in the electricity and maintenance fees after three years!

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