Manager Chen, who had just taken over the shopping mall atrium renovation project, stared at the design drawings and was worried: "Where should I find someone to do this transparent display?" Don't worry, today we broke it and talk about this. You may have seen a display device like magic glass in the mall, which can play advertisements without blocking the lighting - this kind of black technology is an LED transparent screen. But to be honest, it is not easy to find a reliable production partner. Last year's industry data showed that 32% of buyers had strayed.

Decryption of production process: What levels do you need to go through from drawings to finished products?

Let me tell you the truth first. Last year, a commercial body in a third-tier city wanted to build a window screen with a transmissibility of more than 80%, but found an unprofessional factory. After installing it, I found that the picture could not be seen clearly during the day. So the production process is particularly critical:

1. ​​Program design stage​: You must first measure the illuminance value of the installation environment. For example, if you have good lighting, you must choose a product with a transmittance of at least 86%. There is a misunderstanding here. Many people think that the higher the transmissibility, the better. In fact, more than 90% of the pictures will become false, so you have to find a balance point.

2. ​Structural customization link​: It depends on the material of the box. There are two main types now - the aluminum-magnesium alloy frame has a wind pressure resistance of 1.7 times that of ordinary materials, which is suitable for outdoor use; while the ultra-thin carbon fiber box can reach a thickness of 8mm, which is more suitable for shopping mall windows

3. ​​Photoelectric testing part​: Three key points:

   • The brightness must be automatically adjusted (for example, the range of 4000-7500cd/m²)
   • The refresh rate is at least 1920Hz, otherwise it will be full of water ripples when taken.
   • The pixel spacing must be determined according to the viewing distance. If you look within 3 meters, the P4 specification is the most suitable.

The technical parameters: These numbers are not simple

Someone may ask: "What do those numbers on the parameter table mean?" Let's take an example to illustrate. The transparent screen installed in the lobby of a five-star hotel has the parameters of "transparency rate 86%/refresh rate 3840Hz", which sounds quite mysterious, right?

• ​​Population​​It doesn’t mean that there is a hole, it depends on the shape of the hole. Hexagonal honeycomb structure is uniform in light transmission than square holes, and the actual measurement can reduce molar patterns by 23%.
• ​​Refresh rate​Not the higher the better. 3840Hz is suitable for stage performances, but 1920Hz is enough for shopping mall advertising screens, which can save 30% of power.
• ​​Brightness adjustment​This matter is easily overlooked. Good screen should have ambient light sensing, such as automatically brightening to 7000cd/m² at 10 am and dropping to 4000cd/m² in the evening

There is a very interesting comparison data: with the same P4 specification, the screen made by professional manufacturers can last up to 100,000 hours, while the small workshop may start to lose its bad points in 30,000 hours, and the price difference is not in vain.

How to choose a supplier? Remember these three points

I encountered something funny last year. A scenic spot wanted to make a curved transparent screen, but the supplier forced a bend with the flat screen, and it cracked after using it for two months. So choosing a producer depends on the hard indicators:

1. ​​Read the certification qualifications​: ISO9001 is the basics, and the focus is on whether there are any radio and television-level inspection reports. For example, the impact resistance test must reach IK10 level and can withstand 5 Joule impact force.

2. ​​Investigate project cases​: Don’t just look at the renderings, you need to conduct on-site inspections. Pay special attention to whether they have made special screens, such as arc shapes and wave shapes.

3. ​Ask for after-sales terms​: Professional manufacturers dare to promise 7×24 hours of response, and the warranty period for key components is at least 3 years. There is a trick - ask if the control card is double backed up, this detail shows the professionalism

Price fog: Why can the quotation be 3 times different?

Recently, I helped my friend compare prices and found a strange phenomenon: the same size of transparent screens have quotations ranging from 30,000 to 100,000 yuan. After taking apart, the main differences are in these places:

• ​​Light bead quality​: The failure efficiency of imported lamp beads is 1/5 of that of domestic products, but the price is 40% more expensive
• ​Power supply system​: Not only can the smart power supply save power, it can also automatically balance the load. Color difference may occur after half a year of use of ordinary power supplies
• ​Structural Design​: The quick-release box is 15% expensive, but it can save 50% of the installation time. There is a very intuitive data - using a quick disassembly structure to install a 100-square-meter screen, the construction period can be reduced from 10 days to 4 days

There is a real comparison case: a chain store purchased two batches of transparent screens at the same time. The expensive batch has been used for three years and only 1/7 of the cheap screens. It is more cost-effective to calculate the total account.

What pitfalls in the installation environment: Don’t wait until it is installed before regretting it

Finally, let’s talk about a point that is easy to step on the mine - installation conditions. The most outrageous case I have seen last year was when a display room installed the screen directly opposite the air conditioner outlet, and the control card was burned in the screen. Remember these points:

• The ground height exceeds 8 meters must be subject to shock-proof reinforcement
• If there is a strong electromagnetic interference source (such as a substation) around it, the transmission distance cannot exceed 30 meters.
• In places with high humidity, you must choose IP65 protection level, which can work normally in heavy rain.

You may ask: "How do I know these parameters?" In fact, regular manufacturers will send technicians to conduct on-site surveys and use professional tools such as laser rangefinders and illuminance meters to measure them. It is not a matter of just a look.

If I ask me, finding a LED transparent screen manufacturer is like looking for a decoration team - you can't just look at the quotation, get the workshop to see the production process, and see the structural drawings they made for other projects. Recently, many new concepts have emerged in the industry, such as naked-eye 3D transparent screens and bendable transparent screens. They sound quite frightening, but the key is whether the basic technology is solid. Just like the wavy transparent screen at a certain internet celebrity check-in point last year, it looks cool, but because the heat dissipation design is not done well, the dark area appears after three months of use. You have to remember this lesson. After all, finding partners who understand both technology and scenarios is much more important than simply parameters.

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