Why are the joints of the cylindrical screen in the mall atrium always skewed? Three parameters should be paid close attention to

Last year, a shopping mall suffered a big loss - the cylindrical screen, which cost 230,000 yuan to install, showed its original shape on the day it opened: bank cards could be inserted into the seams, and the curved surface transition looked like a sawtooth. Later it was discovered that the manufacturer had hard-bent the ordinary flat screen, and it was not a special curved module at all.

​​Must check core parameters​​：

• ​​Radian accuracy ±0.5°​ ​(Mosaic will appear if it exceeds 1°)
• ​​Module splicing seam≤0.8mm​ ​(At least 3mm for ordinary screen modification)
• ​​Viewing angle＞160°​ ​(If it is lower than this number, it will appear broken when viewed from the side)

Experts’ five-step method to save 30% of your budget

​​The first step: look at the strength of the factory​​

• Only manufacturers with a monthly output of over 10,000 square meters can turn to curved screens
• A curve correction laboratory must be equipped (a small workshop adjusts the curve with the naked eye)

​​Step 2: Verify technical documents​​

• ask for​ ​Curved optical correction report​ ​(Focus on the curvature data on page 5)
• examine​ ​Lamp bead arrangement patent certificate​ ​(Non-linear arrangement can really prevent deformation)

​​Step Three: On-site Pressure Test​​

Guide to installing pit avoidance: This money cannot be saved

​​Fatal mistakes often made by newbies​​：

1. Use ordinary steel structure as support (must use 6063-T5 aviation aluminum)
2. Ignore the thermal expansion and contraction gaps (leave 2mm expansion and contraction space per meter)
3. Eliminate pre-installation and debugging (at least 72 hours of aging test)

​​Cost control tips​​：

• Choose P6 spacing instead of P4 to save 80,000/100 square meters (the viewing effect from 5 meters away is similar)
• Bulk purchasing modules save 15% on logistics costs
• Adopt intelligent cluster control system to save 40% power

After working as a project supervisor for fifteen years, I have seen too many jokes about "cylindrical screens becoming multi-prisms". Remember two iron rules:​ ​Manufacturers that dare to provide surface correction videos are more reliable​​，​​Brands whose exports account for more than 50% have more mature craftsmanship​ ​. Next time you invite bids, you might as well ask: "Put the module on a slope and take a video?" "Manufacturers whose real gold is not afraid of fire will definitely dare to take the initiative!

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