"Want to find a letter LED display but don’t know where to start? "This problem troubles many friends who are new to the industry. Today we broke it apart and talked about where to look for this kind of display screen that can spell out alphabetical symbols, and how to choose it.

1. The alphabet screen is not a master key.​ ​Let’s look at the application scenarios first​​

​​Find out where to put it​ ​That's the first step. Letter LED displays are mainly divided into three categories:

• ​​Outdoor advertising​ ​: Those monograms two to three meters high on the outer wall of the shopping mall have to withstand the sun and rain. ​ ​The brightness must be above 5000cd/m²​ ​, it must also have IP65 waterproof and dustproof hard-core configuration. There is a typical case - a business district in Singapore uses a curved letter screen as a brand logo, and not even a single lamp has broken down in five years.
• ​​Indoor guidance category​ ​: The letter guidance screen at the airport check-in counter or at the door of the hospital department, focusing on​ ​Low brightness and high gray technology​ ​, you can see clearly at 800cd/m² and it’s not dazzling. This type of screen also has smart dimming, which automatically lights up in the morning and dims at night, saving power and being considerate.
• ​​Stage special effects​ ​: What’s important about those luminous letter props in the concert​ ​1920Hz high refresh rate​ ​. Even if the camera is pointed at your face, there will be no scanning lines, and the straight-out videos taken by groupies can be used as wallpapers.

two,​ ​Parameter indicators should be closely monitored​ ​, don’t be fooled by fancy features

When selecting the letter screen, you must learn to read the hard indicators:

1. ​​Pixel pitch​ ​Directly determines clarity:

   viewing distance	Recommended spacing	Applicable scenarios
   Within 3 meters	P4-P6	Shopping mall front desk
   5-10 meters	P8-P10	Stadium seat number
   15 meters+	P12-P16	highway sign

2. ​​Brightness adaptive​ ​It's a necessity. A restaurant chain suffered a loss - the screen it bought was so big that it was difficult to see during the day, and it was so bright at night that it had to install a hood. Nowadays, products with environmental sensors can save 30% on electricity bills.

3. ​​Maintenance convenience​ ​Don't ignore it. A music festival used a magnetic module to replace 26 letters in 15 minutes, which is more than three times faster than traditional screw fixing.

three,​ ​Service network is more important than price​​

The most fearful thing about the alphabet screen is that there will be a shortage of pens and less drawing during use. When looking for a supplier, you should look at these three points:

• ​​24 hours response​ ​No joke. Last year, the fence screen of a stadium in Tokyo broke down in the middle of the night. The technical team gave local workers video instructions to fix the problem in two hours, and the game went on as usual the next day.
• ​​Full process service​ ​It must be implemented in the contract. From font design to installation angle, a professional team will use a laser rangefinder to adjust to ensure that each letter is horizontally and vertically 20 meters away.
• ​​Customization capabilities​ ​Decide on the upper limit. Special-shaped letter combinations such as dancing floor tile screens require flexible substrates and 3D correction technology, which ordinary manufacturers cannot achieve.

To be honest, the alphabet LED display is no longer a simple "light bulb spelling". Now we have to look at not only the hardware parameters, but also the scene adaptability. Those manufacturers that can handle outdoor anti-aging, indoor eye-protection dimming, and stage dynamic special effects at the same time are the ones who really know their stuff. The next time you choose a screen, remember to take one of these three dimension cards first, so you can keep them without getting into trouble!

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