Hey, have you been seeing those large ultra-clear screens in shopping malls lately? A friend insisted on installing an indoor LED screen when he opened a gym, but the screen he spent 30,000 yuan to broadcast fitness videos was all mosaic... Today we will talk about where ordinary novices should go to find reliable indoor LED screens, and teach you how to avoid those pitfalls.

First understand the basic parameters

Some concepts that novices are most likely to be fooled by:
​​① Pixel pitch​ ​: P2.5 means that the distance between each lamp bead is 2.5 mm. P2.5-P3.9 is enough for conference rooms. Smaller is not always better.
​​② refresh rate​ ​: Videos below 1920Hz will have water ripples, making the naked eye dizzy.
​​③ Brightness adjustment​ ​: Indoor screens of 800-1200cd/m² are enough, and those with automatic dimming are more eye-friendly.

I once helped a relative choose a conference screen, and the merchant pushed hard for P1.8. As a result, the 50-square-meter conference room could not be used at all, and an extra 50,000 yuan was spent. Actually,​ ​Choosing a screen is like buying clothes - fit is most important​​。

Comparison of reliable purchasing channels

Last week, I saw a milk tea shop owner buying a "brand new screen" from a certain store. When I opened it, I found that the production date of the control card was three years ago. So,​ ​If you can go to the factory to inspect the goods, try not to buy online.​ ​, especially look at three points:

1. Is there a fully automatic patch machine production line?
2. Is every step of the quality inspection process stuck?
3. Is the aging test sufficient for 48 hours?

Installation and maintenance hidden rules

The truth that many businesses won’t tell you:

• 75% of screen failures are caused by power supply problems (choose a power module with overload protection)
• Clean dust manually every week (dust accumulation will affect the heat dissipation life)
• The control software must be genuine (there are many pirated software that burn out the control card)

A friend's hot pot restaurant suffered a loss because he used a cracked version of the software to save money. As a result, the screen went black for two hours during the peak period of the New Year's Eve dinner. Nowadays, serious manufacturers are equipped with 24-hour technical teams to provide full coverage from solution design to after-sales maintenance. This kind of service can be called worry-free use.

The editor’s advice from the bottom of my heart

1. ​​Don’t be superstitious about imported brands​ ​: The technology of domestic major manufacturers has long been comparable to that of foreign countries. The key is whether they have CE/CCC certification.
2. ​​A technical agreement must be signed​ ​: Write the parameters such as brightness, grayscale, and refresh rate clearly in black and white.
3. ​​See cases on the spot​ ​: It is best to let the salesperson see real projects they have done

Recently I have discovered an interesting trend - many manufacturers have begun to engage in modular design, which can be quickly disassembled and assembled like building blocks. This kind of screen is especially suitable for training institutions that frequently change venues. I heard that some screens and cabinets exported to Japan are made of magnesium aluminum alloy, which is lightweight and heat-dissipating. After all,​ ​Buying a screen is not a one-time deal, follow-up service is the real test.​ ​, those who dare to promise a five-year warranty really have two brushes!

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