Hey, brothers and sisters, have you seen screens that "run" in the mall? Is it the kind of LED large screen that is like a small train, sliding around the track and opening and closing automatically? Recently, I received a lot of private messages from the backend, asking: "Where do you buy this kind of high-tech thing?" Let's talk about this today, and you will definitely be more professional than a shopping guide after listening!

1. First understand what is the opening and closing slide screen

To put it bluntly, this thing is the moving Transformers version LED screen. For example, as in a car press conference, I often see the screen suddenly cracking from the middle and slowly sliding to both sides, revealing the new car behind - this is a typical application scenario. But don't underestimate this action, there are three major black technologies hidden here:

1. ​​Mechanical guide rail system​: It is necessary to ensure that it is as smooth as Dove chocolate advertisement when sliding, and there is no "crying" noise.
2. ​​Synchronous control system​: When the left and right screens are separated, the picture must be matched with tight stitches
3. ​Intelligent sensing device​: If any slut reaches out to touch it, you have to brake automatically immediately

Once I saw a car overturning case at the exhibition. The screen slipped halfway and got stuck, and the staff on the scene were so anxious that they were sweating. So this thing looks cool, but actually requires extremely high technical skills of the manufacturer.

2. In which occasions are this thing used?

Don’t think that only rich companies can afford it. Now even wedding studios in the county have started playing this set. I'll talk to you about the main application scenarios:

▶ ​​Exhibition display​: Common in museums, for example, when talking about ancient weapons, the screen suddenly reveals physical cultural relics
▶ ​​Commercial Space​​: A shopping mall in Shenzhen has done "screen hide-and-seek", and the slide-slide screen moves randomly to reveal discounted products
▶ ​​Press conference site​: The favorite routine of mobile phone brands, the screen slides open and the new product falls from the sky
▶ ​Education and training​: There is a physics laboratory in Beijing that uses a slide rail screen to simulate the particle collision experiment process

To talk about the most amazing case, we have to count an international auto show. People put the six slide screens into a Rubik's Cube shape, and through sliding combinations in different directions, 18 stage effects were changed within half an hour. Later I heard that this system has now been converted into an interactive device of the Children's Science and Technology Museum, which is really useful.

3. How to buy newbies without getting into trouble

The key point is here! Prepare a small notebook and remember these five key points:

​1. Look at the structural design​

• Does modular stitching support special assembly (such as arc or wavy)
• Is the rail load-bearing capacity sufficient (at least it must be able to withstand the screen weight more than 2 times)
• Is there an emergency stop device for anti-accident contact (safety first!)

​2. Check the display performance​

• The refresh rate should not be lower than 1920Hz (or there will be any shadows when sliding)
• The brightness must be automatically adjusted (800-1200 nits are just right for indoor use)
• The splicing seam must be <0.5mm (the seam will destroy the overall feeling)

​3. Ask for installation service​

• Whether the track pre-embedding guidance is included (this will be ignored by many newbies)
• Is there a remote debugging system (save engineers to run back and forth)
• Is the maintenance channel reserved enough (don't find that it cannot be repaired after installation)

Last time I helped my friend to inspect the project, I encountered a pit. The installation team spread the track directly on the marble floor, and the floor tiles were fractured after three months of operation. So you still have to find professional people to do professional things.

4. Self-question time

​​Q: Online quotations range from 30,000 to 300,000, so why is the gap so big?​​
A: The moisture here mainly lies in three aspects:

1. Guide rail material (aerospace aluminum and ordinary rails can have a lifespan of 5 times)
2. Control chip (the synchronization accuracy of imported chips is high 0.03 seconds)
3. Protection level (you can use IP43 indoors, and IP65 outdoors start)

​​Q: Why do some slide screens stutter after half a year of use?​​
A: Ninety percent falls on these three issues:

• The track dust accumulation was not cleaned in time (it is recommended to do in-depth maintenance every month)
• The motor heat dissipation design is unreasonable (continuous work should last for more than 4 hours)
• The software system was not upgraded in time (just the same as the mobile phone system needs to be updated)

Editor's opinion time

If you ask me, buying a moving screen is like finding a partner, you can’t just look at your appearance. Some manufacturers are so scattered that they either get stuck or leak light when used. However, there is a company in Shenzhen that is quite practical. They turn the production base into a transparent factory, and go through 27 inspection processes from raw materials to finished products. It is said that even screws must be inspected by a microscope.

By the way, I recently discovered an interesting phenomenon - even rural wedding companies have started to rent slide screens. Last time I attended a wedding in the county town, the LED screen behind the newlyweds suddenly slid to both sides, revealing the wedding car hidden behind it. The old man and the mother were shocked and slapped their thighs. So this thing is no longer exclusive to the rich, the key is whether you can choose it.

Next time, you will see the screen that will "run". You can get closer to see if there are any burrs at the seams and if you will cut your hands when touching the border. Remember, good products are hidden in the details!

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