Hey old man, I also had a problem when I first entered the industry - I wanted to buy a large LED screen for a shopping mall, but I was confused by various parameters, and in the end I was almost cheated by a second-hand dealer out of a deposit of 30,000! Today, I will pierce this layer of window paper and teach you step by step how to find a reliable display screen. I am sure that after reading it, you will be better than the old purchaser!

1. Three major channels that novices must read

​​Looking for the screen is like looking for an object.​ ​, you have to know where to go to meet the "right person":

• ​​Physical experience store​ ​: Don’t worry until you can touch the real machine. Focus on the playback effect and heat dissipation design in the exhibition hall.
• ​​E-commerce platform flagship store​ ​: Look for the corporate certification logo, and stores with monthly sales of more than 1,000 will be given priority.
• ​​Industry exhibition​ ​: The Shenzhen Optical Expo in March every year and the Shanghai LED Exhibition in September are both good times to shop for goods.

The P3 rental screen I ordered for a friend at the exhibition last year was 15% cheaper than the market price, and it also came with three years of on-site maintenance. So,​ ​View goods offline + compare prices online​ ​That’s the kingly way!

2. Four-step method of parameter screening

​​Don't be fooled by sales​ ​, remember these four hard indicators:

1. ​​Pixel pitch​ ​: The smaller the number, the clearer it is. P3-P6 is used in shopping malls, and P1.5-P2.5 is used in conference rooms.
2. ​​refresh rate​ ​: Starting at 1920Hz, if you use a mobile phone to take pictures of the screen without flickering or ripples, it is considered up to standard.
3. ​​Brightness range​ ​: Indoor 800-1200 nits, outdoor must be 4000 nits and up
4. ​​Protection level​ ​: IP65 is the entry threshold for outdoor screens, and those with lightning protection are safer.

For example, a transparent screen should have a transparency rate of over 86%, otherwise it will look like frosted glass during the day. These parameters are like ID numbers.​ ​Not even one less person​​！

3. Prices are at a low level

​​Why is the price difference of the same P4 screen between 20,000 and 30,000?​ ​? The secret is all in these details:

I saw a case last week: I bought a "special price screen" for cheap. As a result, there were collective short circuits during the rainy season, and the repair fee was more expensive than buying a new screen! So​ ​You get what you pay for​ ​, will never go out of style in the electronics industry!

4. Three questions about the soul to test the true body

​​When inspecting a manufacturer, don’t just look at the PPT​ ​, these three questions must be asked:

1. ​​"What is the monthly production capacity? "​ ​: Those who dare to show off the Wanping production base are the powerful ones.
2. ​​"What is the proportion of exports? "​ ​: Focusing on the Japanese and Korean markets, the quality control is absolutely stable.
3. ​​"Similar project cases? "​ ​: Those who have done stadium fence screens must understand engineering protection.

The key point is to see whether there is a fully automatic placement machine in the workshop, and whether the quality inspection station runs a 72-hour burn-in test for each screen. ​ ​True gold is not afraid of fire​ ​, the one who dares to let you casually visit the factory is a serious manufacturer!

Let me tell you, the LED industry is really deep right now. But remember three iron rules:​ ​Don’t buy three-no products, don’t be superstitious about low prices, and must sign a technical agreement​ ​. Just like the old master downstairs in my house said: "A good screen can only be saved?" wrong! It is actually made by a regular manufacturer! "Follow this guide when choosing a screen next time, and I’m sure you’ll avoid ten years of detours!

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