Are you worried too? I wanted to install a transparent screen in the shopping mall atrium, but I searched online - Wow! There are quotes ranging from 3,000 to 30,000 per square meter. All sellers say that their products are great, which makes people confused. Last week, my old classmate stepped on a trap when he opened a cafe. He bought a "high-end transparent screen" for 28,000 yuan. After installing it, he found that the picture could not be seen clearly during the day. It was so transparent that it was so transparent that it could even see the dishwasher in the kitchen...

Let me give you a key point:​Buying an outdoor LED transparent screen is not buying groceries. Just looking at the price and size, you will definitely suffer a lot.​. This thing is not the same as an ordinary display, just like you can't compare the battery life with an electric bike. There is a very interesting data in the industry recently: 68% of the after-sales problems of transparent screens in 2023 are because the buyer chose the wrong parameter configuration.

Three common shopping misunderstandings

Let’s first look at the most common mistakes newbies make:

1. ​​Supercredible "The higher the transparency, the better"​
   The 86% transmissivity sounds quite intimidating, but if installed in a room with poor lighting, more than 75% will make the picture look gray. This is the same as choosing SPF50 or 100 for sunscreen - it depends on the usage scenario.

2. ​​Ignore the waterproof level​
   It’s really not a scare. Last year, the transparent screen installed in a supermarket chain last year, water vapor directly penetrated through the splicing seam on rainy days, and the maintenance fee was even more expensive than buying the screen.​Remember to choose IP65-level waterproof​, this level can withstand the fire water gun and rush straight.

3. ​​Frauded by the concept of "ultra-thin"​
   Some 18mm thick products on the market are indeed thin, but the heat dissipation performance is directly discounted. It is best to choose a honeycomb cooling structure, just like installing a heat dissipation back clip on your phone. Although it is a little thicker, its life span can be three years longer.

How to choose a reliable channel

Last week, I went to the industrial park and found an interesting phenomenon: the transparent screen with the same parameters is about 20% cheaper for physical manufacturers than e-commerce platforms. There are so many ways here:

• ​​Factory direct store​​: The kind that can see the production line on the spot, it is best to choose a large factory with a monthly production capacity of over 10,000 square meters (don’t ask me how I know, going to the workshop for a walk is more effective than reading ten test reports)
• ​Industry Exhibition​: Like the Smart City Expo, you often meet the technical director to answer questions in person. If you are lucky, you can see the on-site waterproof test.
• ​​Government procurement platform​: Although the process is a bit troublesome, the shortlisted manufacturers have undergone strict review, which is equivalent to the official helping you to screen the quality

A shopping mall purchasing manager revealed to me that they now require manufacturers to provide "Outdoor Environment Simulation Report". Simply put, put the screen in a special box and use a three-piece set of bright light, water spray and blow dry for 72 hours. This kind of test is more than ISO certification.

Must-see hard indicators before paying

Here is a universal formula:​Viewing distance (meters) × 0.3 = Optimum pixel spacing (mm)​​. For example, if it is installed at a 5-meter-high position in the mall, it is appropriate to choose a P1.5-pitch screen. Don’t believe what the seller says, “The smaller the spacing, the clearer it is.” Just like taking photos of the moon on your mobile phone, if the pixels are too high, you will eat performance.

Let me teach you another trick:​Press the screen with the back of your hand and power it up for ten minutes​​. If it feels obviously hot, the cooling system of this screen will definitely cut corners. A good transparent screen should be like a mobile phone with air conditioning on, and it is time to call the alarm if it is warm.

Self-question time

Q: Why do some transparent screens blind at night?
A: Eighty percent of it does not have brightness and automatic adjustment! Now cutting-edge technology can achieve intelligent dimming of 800-1200cd/m², which is more sensitive than the automatic brightness of mobile phones. A bar owner told me that since I changed the screen with a light sensor, the sales of drinks have increased by 15% - customers don’t have to squint their eyes and look at the menu.

Q: Does splicing gaps really affect the effect?
A: Let's put it this way, the 1mm slit is 5 meters away, just like a mark cut by a knife. Nowadays, high-end products use "seamless splicing" technology, and the principle is similar to that of mobile phone film to eliminate bubbles. The gap is compressed to within 0.1mm with special snaps.

Q: How to distinguish between true and false after-sales guarantee?
A: Focus on these two items:

1. Have you promised to come to your door for 72 hours (many people who say "national joint guarantee" actually have to wait half a month)
2. Is there a remote diagnosis system (the real technical school that can check the fault code through the mobile APP)

My heartfelt words

To be honest, buying a transparent screen is like finding a partner - no matter how glamorous the appearance is, it is better to look at the inner quality. Last month I visited an automated production base and saw with my own eyes that they used their robotic arms to perform aging tests. Each screen had to undergo 24-hour continuous work tests. This kind of detail is much more than the "imported chips" and "German technology" that salesmen say.

Remember, even truly reliable manufacturers dare to let you see the production line. Eighty percent of those who stammered and refused to visit were still in the workshops with old equipment from ten years ago. Next time you meet a seller who is so singular, you ask him for a real-time surveillance video in the workshop - it is a mule or a horse, just take it out and take it for a walk!

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