Have you also searched online for "How do newbies choose LED LCD screens without being cheated"? I have seen various products with prices ranging from a few hundred to hundreds of thousands. Some people in the comment area said that a certain product is a good deal, while others insisted on purchasing it from a physical store... Don't worry, today we will break it up and talk about it.

1. Three concepts you must understand before buying a screen

When I first entered the industry, I thought that choosing a screen depends on size and price. It wasn’t until I saw with my own eyes that a cheap screen I bought in a shopping mall had color patches peeling off after three months of use that I understood it.​ ​Pixel pitch​​、​​refresh rate​ ​How important are these parameters? To give a real example: A customer bought a second-hand screen for cheap. As a result, because the refresh rates of 1920Hz and 3840Hz did not match, the promotional video produced was full of ripples, resulting in a direct loss of hundreds of thousands of event funds.

​​Three must-check factors​​：

1. Point spacing (P value): P2.5-P4 for indoor use, P6-P10 for outdoor use is the safest
2. Brightness matching: Do not exceed 4500nit in shopping malls, be careful of complaints about light pollution
3. Warranty terms: Pay attention to whether it is "whole machine warranty" or "main component warranty""

2. Comparison of online VS offline purchasing

Last year, I helped a friend compare 20 channels and compiled this comparison table:

There is a lesson learned through blood and tears: An Internet celebrity bought an LED screen for a live broadcast room. When it arrived, it was found that the interface was not compatible with live broadcast equipment, and the modification fee was more expensive than the screen. so remember​ ​Be sure to confirm the signal interface type​ ​, there is a huge difference between HDMI and SDI interfaces.

3. Tips for avoiding pitfalls that experts won’t tell you

I came across a case last month: the 4K screen a customer bought to play 1080p content was all mosaic. Why? because​ ​Resolution ≠ display effect​ ​. What you really want to look at is:

• Is the grayscale enough for 16bit?
• Is there a dead light rate test report (it is qualified if it is less than 1/10,000)
• Whether the heat dissipation structure is genuine (you can tell by touching the temperature of the prototype casing)

Important reminder: Don't believe in the so-called "factory price direct sales". Really powerful manufacturers have regional protection policies. Teach you a trick - ask to see it​ ​ISO9001 certification number​ ​, go to the official website to check whether it corresponds to the display category. Many small workshops use expired or forged certificates.

4. How to choose not to overturn in special scenes

I recently chose a dance floor tile screen for a bar that I had a lot of trouble with:

1. Insufficient load-bearing: Dark areas appear after three months of dancing
2. Waterproof false standard: It said it was IP65, but the wine seeped in and burned the control card.
3. The seams are obvious: it always wears out when shooting Douyin videos

Later, it was replaced with a die-cast aluminum box with a honeycomb structure. The seams are controlled within 0.1mm, so there is no need to worry about water splashing on the bar counter. So friends who are engaged in performance rental, please pay attention:​ ​Quick disassembly and assembly ≠ sacrificing stability​ ​, focus on the plugging and unplugging life of the box connector (at least 5,000 times).

Now you understand why the price difference for LED screens of the same size can be ten times different, right? Next time you make a purchase, remember to bring an expert to inspect the machine, focusing on the color temperature stability after 1 hour of booting. Finally, I would like to say something from the bottom of my heart: Don’t always think about “where to buy is the cheapest”, look for “where to buy is the most suitable” – after all, the saved maintenance fees and lost business are worth much more than the difference.

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