Looking at the cool advertising large screens in the mall, have you also had the idea of ​​customizing LED screens? But I was confused when I opened my phone and searched. There were at least thousands of LED screen manufacturers across the country, and the quotations ranged from thousands to millions. Don't worry! Today we will break it apart and talk about the tips of finding suppliers, especially those fatal details that are easy for novices to ignore. (Writefully, last year, a chain gym selected the wrong manufacturer. After three months of the screen installation, the color blocks broke out. The maintenance fee is enough and you will buy two new sets of equipment)

1. Three life and death lines for choosing a manufacturer

​​“The monthly output is 10,000 square meters. "Isn't it so cool? ​ ​ But if you order a 20-square-meter window screen, you will suffer a loss when you find such a big manufacturer. This is like going to a seafood market to buy fish and having to go to a 10,000-ton cold storage to pick up goods. Remember this formula:

• ​​Projects above 200 square meters​​: Focus on the automation production line + full process quality inspection
• ​​Regular demand for 50-200 square meters​​: Focus on whether the installation case library matches your scenario
• ​​Creative screens below 50 square meters​​: The strength of the special-shaped processing workshop must be examined

There is an uncommon sense truth:​​Manufacturers that have passed ISO9001 certification can control the necrosis rate of lamp beads within one ten thousand​​. This means that the 100 square meters P3 screen has no more than 3 bad points per month. And the products of those small workshops may make you embarrassed in front of customers on the day of opening.

2. Text games in technical parameters

Salesmen must be talking about the "1920Hz refresh rate", but if you use the screen to play static posters, this parameter is a waste. There are three situations where the refresh rate really needs to be fought hard:

1. E-sports live broadcast venue (there will be a dragging movie below 1920Hz)
2. Highway induced screen (fast vehicle speed requires instant recognition)
3. Virtual studio (to be accurately synchronized with the camera frame rate)

Brightness adjustment is even more a pit in the pit. The most outrageous case I have ever seen: I bought an outdoor screen in a convenience store, but the brightness at night was still blinding. Remember these two life-saving values:

• ​​Indoor window screen​​: 800-1200cd/m² (equivalent to cloudy natural light)
• ​​Open-air billboard​​: 4000-7500cd/m² (Direct sunlight at noon is not reflected)

3. Devil details of installation and maintenance

Last month, a hot pot restaurant suffered a secret loss - I bought a high-end floor tiles screen, but I didn’t ask for the load-bearing requirements clearly, and the ground sank 2 cm after the decoration. These three details can help you:

1. ​​Heat dissipation space​​: Never embed the screen into the sealed wall, leave at least 20cm ventilation channels behind it
2. ​​Power supply wiring​​: Strong and weak currents must be wired separately, otherwise there will be snowflake patterns when the machine is turned on
3. ​​Waterproof grade​​: IP54 is enough for the screen under the eaves, but IP65 must be required by the pool.

There is a golden rule: the manufacturer is required to provide 3D simulation installation diagrams. Regular companies will use BIM systems to preview the thermal distribution and structural load-bearing, and even the screw holes will be marked in advance - the arc-shaped fence screen of a gymnasium last year was used to avoid 7 load-bearing columns.

4. Hidden terms of after-sales service

If the contract says "three-year warranty" will everything be fine? Too naive! A bar owner fell into the warranty terms of the lamp beads - the contract stipulates that there is no warranty within the necrosis rate of 30,000, but his screen happened to be stuck at 30,000. ​ ​Must be written in black and white​​：

• If the lamp bead is necrotic exceeds 0.01%, it will be replaced for free
• Free lifelong upgrade of control system software
• The fault response time is accurate to hours (don't believe in the fuzzy expression "within 24 hours")

Focus on the "Environmental Disclaimer". For example, if the screen installed on the kitchen outlet is not specified in the contract to prevent oil smoke, the later cleaning fee can swallow your profits by half a year.

Editor's opinion

Do you still dare to sign a contract casually after reading these? Remember three tips:​ ​“Production capacity must be benchmarked against demand, parameters must match scenarios, and contracts must be carefully numb.”​​. Next time I encountered a salesperson boasting about the "million-level case" and asked three questions directly: "What is the three-year resumption rate of similar projects? ”“Does the installation team have a special operation certificate? ”“How far is the after-sales engineer stationed? ”——After asking these three questions, it is a mule or a horse that appears immediately.

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