Have you guys ever encountered such a bad thing? The LED screen that cost a lot of money to install was full of ripples in the video. During the live broadcast, people commented that the screen was "twitching". The refresh rate has to take the blame! Today we will talk about this parameter thoroughly to ensure that you become half an expert after reading it.

​​What the hell is refresh rate? ​ ​
Simply put, it is how many times the screen flashes per second. Just like flipping through comic strips, the faster you turn the pages, the more coherent the movements will be. Industry standards are now divided into three levels:

• ​​Basic model​ ​: Even if you take a photo below 1000Hz, there will be stripes.
• ​​Advanced model​ ​: 1200-1800Hz, barely suitable for daily use
• ​​Flagship model​ ​: 1920Hz and upwards for an e-sports level smooth experience

For example, the interactive floor tile screen in the atrium of a shopping mall originally used an old 800Hz model, and the screen always smeared when customers moved around. After switching to a 1920Hz model, children can now jump on it and follow their footsteps in real time.

​​How much money can a high refresh rate save you? ​ ​
There is an economic account hidden here:

1. ​​Electricity bill​ ​: The 1920Hz model saves 30% power than a conventional screen. A 20㎡ screen can save one smartphone a year.
2. ​​Maintenance cost​ ​: The high-refresh driver chip is more intelligent and extends the life by 2-3 years.
3. ​​Customer Compensation​ ​: Restaurants use low-refresh screens to display menus, and some customers once made claims for dizziness due to screen flickering.

Even more amazing is that some new models come with​ ​Brightness adaptive technology​ ​, automatically increases to 7,500 nits on sunny days and drops to 4,000 nits on cloudy days, and the electricity bill is immediately reduced by 40%. This function is similar to the inverter air conditioner at home.

​​Three steps to teach you to choose the right parameters​​

1. ​​Look at the usage scenario​​：

   • Stage performances/sports events → must start at 1920Hz
   • Shopping mall advertising screen → 1200Hz is enough
   • Warehouse information screen → 800Hz is also acceptable

2. ​​Touch real effect​​：
   Point your phone camera at the screen to take a video. If there are obvious horizontal lines, ask the manufacturer to adjust the equipment immediately.

3. ​​Check hidden costs​​：
   Although the high-refresh screen is 15%-20% more expensive, the electricity bill saved can pay for itself in 2 years. A gym replaced 18 interactive floor tile screens, and the electricity bill saved in two years was enough to buy a commercial treadmill.

​​Exclusive data from industry veterans​​
I recently dismantled five mainstream models and found that those that can really achieve 1920Hz have these characteristics in their heat dissipation structures:

• Lamp panel thickness ≤8mm
• Using honeycomb heat dissipation holes
• The driver chip has its own temperature sensor

Even more amazing is a certain transparent screen that can maintain 1920Hz refresh rate with 86% light transmittance. This technology may become popular next year. Now you know why some window displays look like magic?

​​personal opinion attack​​
If you ask me, choosing an LED screen now is like buying an electric car - you can't just look at the nominal parameters. Some manufacturers play word games and promote the peak refresh rate as a normal value. Actual measurement data is reliable, and it is recommended to require manufacturers to provide third-party testing reports.
According to industry insiders, 2000Hz will become the threshold for high-end models starting next year, and now is the time to get involved. Remember, a good refresh rate makes you unable to feel its existence. This is real skill!

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