Alas, are you also having this problem? When I saw the naked 3D large screen in the mall when I browsed the short video, I saw that the naked 3D screen was so cool, but the company's exhibition hall was still using the old projector? Or I want to install an LED door front screen for the store, but after searching online, I found that P2.5, 3840Hz, IP65 protection... I was dazzling? Don't panic, we will break it and talk today——​ ​How should I choose the LED screen for a novice?​​？

1. Get these three points first when buying an LED screen

​​Do you know? 90% of people buy the wrong LED screen because they don’t understand these three basic issues.​ ​. Don't rush to see the price, we have to figure it out first:

1. ​​Where should I install this screen? ​ ​
   Indoor or outdoor? If it is installed at the door of the hot pot restaurant, choose an indoor screen and be shorted by the steam in minutes. Like that​ ​Outdoor dedicated screen​ ​Not only does the brightness have to reach more than 4000cd/m² (equivalent to the brightness of noon sunlight), but it also has IP65-level waterproof and dustproof capabilities. It will still work normally when pouring water on a basin on a typhoon day.

2. ​​Show it to people or machines? ​ ​
   The shopping mall advertising screen needs to be seen clearly 30 meters away, and the large screen in the conference room must pay attention to the delicateness of close viewing. There is a simple way to judge:​ ​Viewing distance (meters) = Point spacing (mm) × 2​ ​. For example, the common P3 screen (point spacing 3mm), the best viewing distance is 6 meters away.

3. ​​How many years will you prepare to use? ​ ​
   Don't be confused by the low price! Some screens look cheap, and they appear in color blocks and dead lights after half a year of use. ​ ​Regular manufacturer​ ​The lifespan of the full-color screen is basically more than 50,000 hours, and it can be used for 13 years based on the 10 hours of screen lighting every day. Focus on​ ​Lamp bead brand​ ​and​ ​Driver chip solution​ ​, these two items directly determine the screen's "resistance" ability.

2. These parameters hide big pits

When entering a store, it is most likely to be led by sales? Remember these​ ​Key indicators​ ​, please make sure you become a half expert:

To give a real case: Last year, a chain of milk tea shop bought a cheap picture and swiped the screen. As a result, when playing a new product promotional video, the splashed pearl milk tea picture became a ball, and the customer complained that the picture quality was like a pirated disc"——​ ​You see, if the parameters are not up to standard, it will really affect business​​！

3. It is better to buy the right one than to buy it

Now let’s talk about something heart-to-heart. There are LED screens on the market ranging from 20,000 to 20,000 per square meter.​ ​The three most likely newbies to make these mistakes​​：

​​Misunderstanding 1: Blindly pursue small spacing​​
The small spacing below P1.2 is indeed delicate, but the price is directly doubled. If it is installed as a shopping guide screen at the entrance of the supermarket, you can use a more affordable P3 or P4 screen, which will save enough money to pay half a year of electricity bill.

​​Misconception 2: Ignore the installation environment​​
The most outrageous case I have ever seen is someone installing a normal screen in the seafood market, but after three months, the driver chip is completely corroded by salt. This kind of scenario has to be chosen​ ​Anti-corrosion coating + common-colour drive​ ​Special model.

​​Misconception 3: Only look at the hardware and ignore the content​​
No matter how good the screen is, it will be useless to have a screen with 480P film source! It is recommended to prepare in advance​ ​4K film source​ ​, or choose a model with AI image quality enhancement function to automatically optimize low-definition materials to close to high-definition effects.

4. Teach you three tips for inspection

After spending the money, how do you confirm that you bought a good product? These three​ ​Local method​ ​More useful than professional detectors:

1. ​​See uniformity on the black screen​​
   Let the screen display a pure black picture, stand 3 meters away to see if there are any "pocks" or "red spots". This trick is specially used to treat corners.

2. ​​White screen heat dissipation​​
   The full white picture is bright enough for half an hour, touch the temperature of the screen border. ​ ​High-quality screen​ ​The temperature should not exceed 50℃ (slightly warm in feel). If the eggs are so hot that they can fry them, please return them as soon as possible.

3. ​​Gradient gray test chip​​
   Play 256-level grayscale images from black to white and shoot them in slow motion on your phone. ​ ​Good chip​ ​The transition should be as smooth as silk, and the chip will have obvious color-level faults.

5. These new technologies are worth paying attention to

The industry has made rapid progress in the past two years, and there are several types of​ ​Black Technology​ ​You can focus on:

1. ​​Low bright high gray technology​​
   It can reduce the brightness of the indoor screen to below 800cd/m² while maintaining the sense of layering of the picture, and it is not dazzling for a long time to watch, and is especially suitable for exhibition halls and conference rooms.

2. ​​Pre-maintenance design​​
   Traditional screen repair requires removal of the entire back, and some models now support it​ ​Quick disassembly on the front​ ​, changing a module is easier than changing a light bulb.

3. ​​Smart energy-saving system​​
   Automatically adjust power consumption through ambient light sensing + content analysis, the actual measurement saves 40% of power than fixed brightness, and saves money on a new mobile phone in a year.

6. Xiaobai’s ultimate soul torture

​​Q: It is reliable to buy online and offline. How to choose? ​ ​
A: Suggestions​ ​Offline view + online price comparison​ ​. Nowadays, many manufacturers support remote video inspection, and can also use AR technology to "put" the screen to your store to see the effect.

​​Q: I promised to have a three-year warranty, but what should I do if the manufacturer ran away the next year? ​ ​
A: Recognize​ ​Own factory + global service outlets​ ​For brands, it is best to check the scale of the production base - if the monthly production capacity is less than 5,000 square meters, be careful to choose.

​​Q: Can you claim compensation if there is color difference after installation? ​ ​
A: You must state when signing the contract​ ​Color gamut coverage ≥110%NTSC​ ​, use a color calibration device to detect during on-site acceptance, and directly reject if the error exceeds ΔE<3.

Buying an LED screen is like finding a partner. Just looking at the appearance will lead to a loss, and finding out the background is reliable. Next time I sell you something about "military quality" and "imported chips", and I will just throw this article over - although we don't understand technology, we will focus on the key points! remember,​ ​Good screen = hard parameters + real service + understand demand​ ​, if these three things are alive, you won’t be wrong to buy them with your eyes closed.

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