Have you ever seen an advertising screen that is as light as glass when shopping? You clearly see the goods in the showcase, but the picture is floating in the air? This black technology is a transparent LED display. Today, let’s take a look at what corners are hidden in small cities like Weng'an, and by the way, how to choose to avoid pitfalls.

1. The transparent screen is actually under your nose

You may not believe it if you say it. Last year, when a shopping mall in Weng'an was renovated, 20 transparent screens were quietly installed in the women's clothing area on the second floor. These screens have a 86% transmissibility during the day, which is no different from ordinary glass. At night, they suddenly transformed - models were wearing new products of the season and walked on the glass, and customers could reach out and trigger interactive games to receive coupons.

A friend who runs a milk tea shop complained to me: "Last month, I wanted to install such screens in floor-to-ceiling windows, and I went to the building materials market and said it was out of stock! "In fact, this type of equipment usually needs to be customized. There are two mainstream solutions on the market:

• ​​Curtain type installation​ ​: Hang directly on the inside of the existing glass, with a thickness of less than 3cm
• ​​Alternative glass​ ​: The entire screen is used as a curtain wall, with a load bearing capacity of up to 50kg per square meter
  The most amazing thing is a bank branch. They replaced the glass of the ATM protective cabin with a transparent screen, which usually displays financial information, and instantly turns into an explosion-proof shield when encountering an emergency. I am convinced of this idea.

Second and third tips to teach you how to identify reliable products

Last week, I accompanied my relatives to pick up the display screen. The merchant said, "My family's transmissibility is 90%", but after taking the instrument, it was only 72% after testing. Here are some hard-core identification methods:

​​The first thing to see is the arrangement of lamp beads​​
The authentic products are arranged in a misalignment like a honeycomb, so that they will not be faulted from the side. If you see the lamp beads lined up in square lattices, run quickly - this kind of screen has a very narrow viewing angle, and you can see that it is full of mosaics when standing next to you.

​​The second tests the actual brightness​​
Don’t believe the “4500cd/m²” written on the promotional page, and bring it to your mobile phone to download a metering app. Standing 1 meter in front of the screen, the brightness of the indoor screen is less than 800cd/m², it is absolutely impossible to see clearly in broad daylight.

​​Third question control system​​
A good transparent screen must have brightness adaptive function. For example, the curtain wall screen of a local hot pot restaurant will automatically lower the brightness at night, which will not affect diners' view of the night, and the picture will not be dazzling. If the merchant stammers and can't explain this function clearly, it is mostly an OEM product.

3. Those tricks that merchants won't tell you

I know a man who is doing weddings. Last year, I bought a batch of transparent screens with a bargain, but it turned out to be a mess at an outdoor wedding. The screen under the sun is reflected like a mirror, and the bride and groom's face is reflected like an alien. Later I learned that outdoors must choose a model with anti-glare coating. Although the price is 30% expensive, it can withstand direct sunlight of 100,000 lumens.

There is also a more hidden pit - maintenance cost. Transparent screens are most afraid of dust accumulation. Ordinary models need to be scrubbed every week, while high-end models have nano-coated surfaces, so water droplets can take away the dust by themselves when it rains. The price difference seems to hurt, but the labor cost saved can be paid for in three years.

Recently, I encountered a strange thing when I was helping the school gymnasium to select screens: a manufacturer boasted that their screens could broadcast 8K videos, but when I connected the device, I found that the decoder only supports 4K at most - this is like buying a 5G mobile phone but using a 2G package. No matter how good the hardware is, it will be useless.

4. Application ideas that have come to the future

I heard that a local gym is testing black technology and has replaced the mirror in the locker room with a transparent screen. When students change clothes, the screen automatically switches to atomization mode. ； It can also display physical test data in normal times and can also correct fitness movements in AI. I want to say that this creativity is amazing, which not only protects privacy but also improves the experience.

What surprised me even more was the operation of a certain ecological park - they installed a 200㎡ transparent screen on the roof of the greenhouse. During the day, the sunlight normally nourishes plants through the glass, and at night, the special effects of the starry sky are played. Visitors lying to watch the Milky Way without delaying the photosynthesis of plants. This is not a display screen, it is clearly the symbiotic art of technology and nature.

Editor's opinion

Transparent LED screens are like smartphones. In the early years, they were a powerful tool for business people. Now even pancake stalls can display menus. In a third- and fourth-tier city like Weng'an, remember three keywords: large commercial bodies, high-end stores, and public spaces. If you really can't find it, it is recommended to contact manufacturers with automated production lines and full-process quality inspections directly - after all, it is not a piece of cake to export Japanese and Korean products to cope with our local weather and environment?

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