"I wanted to buy a special-shaped LED screen installation store, but asked the three companies that offer a quotation difference of 50,000 yuan. How deep is this water? "Yesterday I just heard Xiao Li, who opened a milk tea shop complain that the curved screen he liked ranged from 80,000 to 130,000. To be honest, this irregular display is indeed much more complicated than an ordinary screen, just in the industry last year.​ ​37% of customized projects have been subject to design disputes​​. Let’s talk about it today, how to avoid these pitfalls.

1. Special-shaped screens are not something you can buy if you want

First figure out what a special-shaped screen is - not a square one, but a circle, arc or even polygon. Here is a cold knowledge:​ ​Bending angles exceeding 60° must be made of flexible substrates​​, otherwise it will be cracked in half a year. The wavy floor tiles used in a music festival last year were made of hard materials, but the artist broke three modules.

You have to draw a list of requirements before buying:

• ​​Installation position size​​: Take the laser rangefinder three times, and the angle is 1 cm longer than the angle.
• ​​Visual angle​​: Restaurants need at least 160° wide viewing angle, convenience stores 120° enough
• ​​Surface arc​​: Don’t believe what the merchant says “arbitrary bending”. In fact, the actual radius exceeds R50mm will affect the life of the lamp beads.

2. The procurement channel has hidden secrets

There are three main ways on the market:

1. ​​E-commerce platform​​: Suitable for small-size special-shaped screens (＜2㎡), but the customization fee may be more expensive than the product
2. ​​Project dealer​​: One-stop design and installation, but the price difference between middlemen can be 30%
3. ​​Find a factory directly​​: Only enterprises with monthly production capacity exceeding 10,000 square meters have real customization capabilities

A friend who works in a bar has a cheap picture and bought a hexagonal screen on a certain platform. As a result, it was found that the joints could be stuffed into coins.​ ​Splicing error exceeds 3mm​​, it seemed like a dog had chewed at the video. Later I learned that the small workshop could not make high-precision cutting at all.

3. Word game in parameters

When looking at the parameter table, you must stare at these five items:

1. ​​Radius of curvature​​: It is not possible to write "support bending" and the specific R value must be indicated.
2. ​​Protection level​​: Minimum IP65 outdoors, better with anti-collision strips
3. ​​Control system​​: You need to ask which video formats are supported, don’t buy them and can’t put them in 4K
4. ​​Maintenance passage​​: Can the module be disassembled and replaced separately
5. ​​Warranty scope​​:How long does it take for lamp beads, power supply and control systems to be kept separately?

Let me give you a negative textbook: The spiral screen in a shopping mall atrium has no maintenance port left, and the entire wall has to be removed if a lamp bead is broken. The maintenance fee is more expensive than buying a screen. Now you know why​ ​Maintenance convenience is the first priority​​Now?

4. The secret of price composition

Take common curved advertising screens as examples:

• ​​Hardware cost​​Accounts for 55% (including special-shaped modules and steel structures)
• ​​Design fee​​Account for 20% (the more complex the shape, the more money it costs)
• ​​Installation and debugging​​Account for 15% (the cost of high altitude operations is the largest)
• ​​Invisible Fees​​10% (transportation insurance, spare parts)

Here is a tip for saving money:​​Mass production can be bargained by 15%-20%​​. For example, chain stores purchase uniformly, the unit price of 10 screens and 1 screen can be 30% different. But be careful, some merchants will spread the mold fee to the unit price and write it clearly in black and white.

5. Five things that must be done for acceptance

Don't rush to sign after arrival, follow this procedure:

1. ​​Measure the arc​​: Use the curvature gauge to measure the bend, the error cannot exceed 0.5mm
2. ​​Brightness measurement​​: Use an illumination meter to measure the farthest viewing point, which is 30% brighter than the ambient light
3. ​​Check splicing​​: Play solid color pictures, the colors at the seams must be completely consistent
4. ​​Try touch control​​: If you have interactive function, you must connect to the point 100 times without lag
5. ​​See the fever​​: After working continuously for 4 hours, the surface temperature cannot exceed 60℃

Last time I met an acceptance expert, I actually brought a thermal imager to inspect the goods. I found that the power module was of abnormal temperature and asked the manufacturer to change the entire drive system. This professionalism is not acceptable.

6. Know the future trends early

These three types of special screens should be focused on:

1. ​​Translucent type​​: 86% transmittance can also display videos, and the window application has increased dramatically
2. ​​Foldable​​: Contain and store like a scroll, save 40% on rent
3. ​​Touch Fusion​​: Floor tiles with pressure sensing, interactive effects when stepped on

I heard that cutting-edge technology can do it now​​1mm thickness flexible screen​​, pasted on the cylinder like a wallpaper. However, this kind of black technology is currently extremely costly, and it is more cost-effective to wait for two or three years before starting.

​​Personally talk​​: Recently I found a rule - bosses who can buy special-shaped screens pay special attention to two points: one is whether the factory has its own R&D team, and the other is whether the after-sales service can arrive at the site 48 hours a day. There is a friend who is doing exhibitions even more. He specializes in selecting factories that supply international events, saying that such companies can stand the test of big scenes. Just think about it, isn’t it a piece of cake to be able to decorate a store for the owner who has a special screen at the Olympics? But then again, sometimes you can’t just look at the parameter table when buying this type of special products. You have to go to the factory to see the production process with your own eyes to make it more stable.

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