Have you ever seen such curved displays in the mall? It is the kind of screen that is not like the traditional square, some are like waves, some are like cylinders, and even completely irregular shapes. Recently, when I was helping my friend purchase equipment, I found that eight out of ten purchases were asking: "Is this kind of special-shaped screen reliable? Will there be problems after using it for half a year?" To be honest, this industry is very deep - the circular screen used in a music festival last year suddenly turned three pieces in half of the show, and the scene was in chaos...

1. The pit that 90% of novices have stepped on

Let’s talk about the scene of the crash that I have seen with my own eyes. A customer bought a batch of "special special-shaped screens" with a cheap price, and found three fatal injuries:

1. ​​The splicing seam can stuff coins​: It is said to be seamless splicing, but the actual gap is so large that you can see the wires inside.
2. ​​The picture is stretched into a haha ​​mirror​: The circular screen broadcasts ordinary videos, and the faces are twisted into aliens
3. ​​The entire wall needs to be removed for repair​: A module is broken and it will disassemble the entire surface structure.

What's even more outrageous is that the wavy screen bought by a wedding company has fallen off after three months of use. Later I found out that the supplier was using ordinary flat panels, and the stress problem of the curved structure was not considered at all.

2. Understand these three core parameters

When choosing a special screen, you have to stare at these indicators:

1. ​​Radius of curvature fit​
   Take common curved screens as an example, and you have to look at this data:

   • ≤3 meters of curved surface, pixel spacing should be ≤2.5mm
   • For every 1 meter increase of radius, the spacing can be relaxed by 0.3mm
     This formula is used for the 360° ring curtain in a theme park, and the picture deformation rate is controlled within 1.8%.

2. ​​The weight-bearing ratio of steel structures​
   Don't just look at the weight of the screen, focus on this formula:
   ​​(screen weight + maximum wind load)/Support structure load bearing ≤0.7​​
   Like the music festival screen that had an accident, the actual ratio has reached 0.92. How can it not collapse?

3. ​Driver chip matching degree​
   Ordinary rectangular screen chips are used directly? Wait for the picture to tear apart! Must meet:

   • Support non-scaling
   • With real-time deformation compensation algorithm
   • Can control ≥8 special-shaped units simultaneously

3. Guide to avoid pits (practical practical information)

This comparison table is recommended to store it in your mobile phone to see if the supplier dares to fill it in:

Special reminder: You must do this trick during acceptance - let the supplier play the green code rain video of "The Matrix" on-site. This high-speed moving vertical line best exposes the deformation compensation defects of the curved screen.

4. Purchase process anti-pit manual

Tell me about my exclusive purchasing line:

1. ​​Demand confirmation phase​
   First use the tape measure to measure the installation space and record these three data:

   • Maximum protruding size
   • The latest viewing distance
   • Power interface location

2. ​​Supply filtering​​
   Focus on these four documents:

   • Special quality inspection report for curved screens (don't fool the ordinary screen)
   • Mechanical calculation book of steel structure
   • Three-year failure rate statistics table
   • Special scene case video

3. ​​Contract Trap Point​
   These two must be stated:

   • Module damage supports single point replacement (the entire screen is not accepted)
   • Free software upgrades for life (many later upgrade fees are charged)

5. Should we spend money on configuration?

Recently, many people are asking: Should you install these black technologies?

• ​Intelligent temperature control system(Add 25% budget)
  Personal advice: If you use it on average per day >8 hours, it can extend your life span by 30%.
• ​AR calibration function(Add 18% budget)
  Non-professional venues are not necessary, you can make do with a calibration app on your mobile phone
• ​​Dual power supply redundancy(Add 12% budget)
  Must-install for critical occasions! The spiral screen of a commercial center relies on this function to keep the core module in the event of a power outage

The most awesome design I have ever seen is the atrium screen in an international shopping mall - a 6-storey curved structure, which can actually rotate 15° independently of each module. At this level of engineering, suppliers must have three-dimensional point cloud scanning + real-time rendering capabilities. So, choosing a special-shaped screen doesn’t really depend on the price, it depends on whether the technical team has two brushes.

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