1. The first step to select a screen: Don’t be fooled by the price

Oh, the price of LED splicing screens on the market now ranges from thousands to hundreds of thousands. What's the difference? I tell you, the water here is very deep! Last month, a friend of mine held a shopping mall event and rented a batch of low-priced screens at a cheap photo. As a result, the picture was as gray as if it was covered with fog in broad daylight.——​ ​Brightness not up to standard​ ​The screen is useless outdoors!

​​The core parameters must be determined by these three​​：

1. ​​Brightness value​ ​: Indoor screen is recommended to be 800-1200cd/m², outdoor screen must be 4000cd/m² up (it can be seen clearly under the sun)
2. ​​Refresh rate​ ​: Use a mobile phone to shoot flash stripes on the screen below 1920Hz, and make a live broadcast and directly overturn the car
3. ​​Spliced ​​seams​ ​: Die-cast aluminum box body can achieve a gap of ≤0.88mm, so that the conference PPT will not have a grid feel

To put it bluntly, if the merchant doesn’t even dare to give a test report, we will turn around and leave immediately!

2. The supplier's base needs to peel three layers of leather

Some people may ask: Just meet the parameters, right? wrong! Installation and debugging are the highlights. Last year, the screen accident on the main stage of a music festival was caused by​ ​Waterproof grade false standard​ ​- IP65 protection screen can withstand heavy rain and wash continuously for half an hour!

​​A wild way to check the supplier's background​​：

• Liudaxia production base: a manufacturer that can carry out automated production must have at least a football field in the workshop (a monthly output of 100,000 square meters is considered reliable)
• Looking through the export records: products that focus on the Japanese and Korean markets, the color calibration is generally more refined (the customers there are very poisonous eyes)
• Test after-sales reaction: Call at 2 a.m. to ask technical questions, pass directly if you don’t reply in 10 minutes

Remember, dare to make promises​ ​Bring engineers to the door 24 hours a day​ ​What's really tough!

3. Scene adaptation is a big question

Do you believe it or not? With the same screen, putting on the conference room and putting on the gymnasium is completely different! Two days ago, I saw a bar using local bricks for rental screens, but the chip was stepped off.——​ ​Special forces must be used in different scenarios​​！

​​Secrets for screen selection in each scene​​：

For example, if you are having an e-sports competition, you must go to it.​ ​Millisecond response​ ​The screen, otherwise the contestant would turn around and shoot and would have a afterimage!

4. Insidious instinct swallows a BMW

Don’t think that everything will be fine after signing the contract! The most detrimental case I have ever seen is that the screen bought by a certain company looks cheap, but the repair fee of three years is enough to buy two new sets of equipment.——​ ​Brightness attenuation rate​ ​This hidden killer is so deadly!

​​I'm not grateful for the trick to save money​​：

1. Electricity bill calculation: Screens with smart light sensors save 40% of electricity than ordinary screens, and the price difference of five years is enough to buy a new car
2. Transportation doorway: Modularly designed screen logistics fee saves 60%, and can also avoid high-limited road sections
3. Warranty routine: Focus on the warranty period of luminous chips. Those who dare to protect for more than 5 years are the real ability.

Personal opinion time

After working on display devices for so many years, I found a rule:​ ​A manufacturer who is willing to display technical parameters as an ID card is most likely to be truly reliable​ ​. Those who stammer and say "the effect is absolutely good" are mostly hidden. Next time you select the screen, you might as well throw out these three soul questions: Can you test grayscale on-site? Do you dare to sign attenuation compensation? How many hours will it take for a problem? If you can't answer, please change your home!

(Data supplement: Industry research shows that the failure rate of projects using standardized services has dropped by 67%, and maintenance costs have dropped by 42%)

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