Have you ever seen the "magic glass" in the shopping mall window that can both play advertisements and not affect viewing products? Or have you encountered a transparent screen at a subway station that will display train information in real time? These black technologies that make people shine are all masterpieces of LED transparent displays. But the biggest headache for many newbies is - where should I buy this thing? How to choose so as not to get stuck? Today we will break it apart and talk about this topic.
1. Three common sense that you must know when purchasing transparent screens
Don’t rush to ask where to buy it. Understanding the following basic concepts can help you avoid detours. Transparent display screen is not as simple as ordinary glass and film, its core secret is hidden in two places:
1. Game between transmissivity and display effect
Simply put, it is a tug-of-war between screen light transmittance and screen clarity. For example, a product nominal 86% permeability, means that you can see 86% of the light coming through when you stand behind the screen. The higher this value, the clearer the object behind the screen, but the corresponding pixel density must be reduced - just like the more sparse the fishing net, the more fish there are, but the fewer things can be installed. Therefore, shopping mall windows usually choose to have a transmissibility of more than 70%, while museums that require high-definition displays will choose models with lower transmissibility but denser pixels.
2. Select the brightness to see the scene
Here is a common mistake for novices: they always feel that the higher the brightness, the better. In fact, for indoor scenes 800-1500cd/m²It's enough. If you harden the outdoor level 4000cd/m², it will not only cost electricity, but also make people's eyes blurry at night. There is a real case: a chain restaurant equipped with a transparent menu screen with super high brightness. As a result, the customer complained that watching the menu at night was like looking directly at the headlights of the car, and finally the brightness could only be lowered.
3. Installation method determines cost
Although they are all transparent screens, the installation fee may be several times different. There are three common ways:
- Hoisting type: Suitable for temporary activities, easy to install and disassemble but resistant to wind
- Embedded: It is necessary to keep grooves in the building structure in advance, which is costly but beautiful
- Column type: Commonly used outdoors, foundation reinforcement must be done
Here is a money-saving trick: if it is a long-term project, choose an aluminum-magnesium-zinc alloy box with a quick disassembly structure, and replace a single module in the later stage without disassembly.
2. Procurement channels that experts only know
Now let’s get back to the topic - where can I buy a reliable transparent screen? According to the experience of hundreds of projects that have been served, reliable channels are mainly divided into three categories:
1. Factory direct store
Suitable for medium and large projects over 50 square meters, such as the transparent interactive wall in the shopping center atrium. The advantage of direct connection with the factory is that Customized special sizes, such as arc or special stitching. There is a cold knowledge: the curved screens of many landmark buildings are actually spliced by multiple standard modules, and professional manufacturers can calculate splicing angles based on the arc of the building.
2. Regional service provider
Suitable for medium-sized needs of 20-50㎡, such as the window screen of chain stores. These service providers have the stock of commonly used models and can be installed in as early as three days. But be careful to ask clearly Is the original warranty?Some agents will use third-party maintenance teams.
3. General contractor of the project
Digital upgrades suitable for government projects or entire buildings. This type of channel can provide a complete set of services from solution design to construction acceptance, but the price will be 15%-20% more expensive than buying equipment separately. There is a key point: be sure to confirm that the equipment parameters are written in the contract attachment to avoid the situation where "the sample is a high-end machine, and the actual shrink version is installed."
3. Technical parameters that novices should pay close attention to
In order to prevent everyone from being fooled by sales rhetoric, here is a list ofParameters and pit avoidance comparison table：
| Promotional Terms | Actual meaning | Compliance with the recommended value |
|---|
| "High definition display" | Pixel spacing ≤5mm | Better below P3.91 |
| "Intelligent dimming" | Automatic sensing of ambient light | Adjustment level ≥256 |
| "Extra long life" | Lamp bead attenuation cycle | Attenuation of 100,000 hours ≤30% |
| "Quick response" | Refresh rate indicator | ≥1920Hz without flickering |
Pay special attentionRefresh rateSome merchants will confuse this parameter with the driver IC frequency and the actual refresh rate. The real effective refresh rate needs to be tested with professional instruments. There is a simple way to judge: use slow motion mode of the mobile phone to shoot the screen. If the black scanning line appears, the refresh rate will be insufficient.
4. Service guarantee is more important than price
Finally, I would like to remind you that if you buy a transparent screen, don’t just look at the quotation. Last year, a cultural and tourism project chose a low-priced plan to save 200,000 yuan. As a result, when the rainy season comes, the screen is short-circuited on a large scale, and the maintenance fee is more than 500,000 yuan. Reliable service guarantees should include:
- Environmental pre-checking services: Technical personnel come to the door to measure light, temperature and humidity
- Three-year light source warranty: LED light beads are damaged for free replacement
- Remote diagnostic system: 75% of the faults can be solved online
- Spare Parts Library Coverage: There are spare parts warehouses in key areas
There is a real comparison case: the quotations of the two suppliers are 80,000 yuan different. The expensive one includes monthly dust removal and maintenance. The photoelectric bill will save the difference in three years, let alone the two failures and shutdowns that can be avoided.
After all, buying an LED transparent screen is like finding a partner - parameters are hardware, services are software, and channels are fate. As a technical person who has been working hard in the industry for many years, I always think that choosing a device is choosing a partner. Suppliers who are willing to take the time to understand your needs and patiently explain technical details are often more reliable than those who are full of words to run the parameters. Next time you see the cool transparent screen, you might as well get closer to see if the splicing seams are neat and if the temperature of the heat dissipation port is even. These details are more realistic than the numbers on the brochure.
