Why! How can I take a picture of the newly installed LED screen with all wavy patterns? Don’t panic! Today we will talk about this big problem——​ ​Where should I adjust the water ripples of the LED screen?​ ​? Teach you step by step to solve problems from the root! (Knocking on the blackboard) This is the unique skill of a master who has installed thousands of screens!

1. First understand the root cause of the disease: What is water ripples?

​​The scientific name of water ripples is Moor​ ​, just like the pattern of two screen windows stacked together. This annoying stripe occurs when the pixel arrangement of the LED screen is close to the frequency of the camera sensor grid. Remember two key points:

1. ​​It cannot be seen with the naked eye, but it appears after taking pictures​​
2. ​​It has nothing to do with the quality of the screen, it is caused by the shooting equipment​​

To give a real case: Last year, we installed a transparent window screen for Korean shopping malls. When customers took promotional videos with Apple phones, they showed obvious ripples. Finally, they solved the problem perfectly by adjusting the shooting angle!

2. First aid guide: quick on-site elimination method

​​Don't rush to find a wrench! Try these three tricks first​ ​：

1. ​​Rotate the phone/camera 15°-30°​​
   Just like turning the steering wheel to avoid potholes, changing the angle can make the two grids stagger. We installed a fence screen for Japanese stadiums, and the photographer avoided the corrugation after taking 45° angle.

2. ​​Pull the lens closer or further​​
   The principle is similar to turning the radio frequency modulation, changing the shooting distance is equivalent to changing the spatial frequency. This trick works best when using the indoor poster screen with brightness of 800cd/m²

3. ​​Turn off autofocus and change manual​​
   Find "MF" mode in the camera settings, slightly imagining 0.5 levels. Remember the formula:​ ​Reduced clarity by one level, and corrugated immediately laid off​​

3. The fundamental solution: Solve from the source of hardware settings

If you need to shoot frequently, you have to take it seriously! Focus on adjusting these two parameters:

​​Refresh rate settings​​
The screen refresh rate is increased to ≥1920Hz. Our company’s rental screen comes with a 3840Hz high refresh mode. It's like changing the faucet from dripping water to a shower, and the ripples disappear naturally

​​Intelligent brightness adjustment​​
During the day, it is adjusted to 7500cd/m² outdoors and 2000cd/m² at night. Like the curved advertising screen in Singapore, it is automatically dimmed with the light sensing module, and there are no more corrugations in the night scene.

4. Advanced gameplay: These black technologies make Ripple go away!

​​Wear a "invisible jacket for the screen"​​：

1. Installing an optical processing screen—equivalent to attaching anti-peeping film to the screen, turning discrete pixels into continuous light sources
2. Using anti-molar filters – like wearing sunglasses to the camera, filtering out the frequency of interference

We customize the event display system for Tokyo Stadium, directly integrating these two technologies. During the World Cup live broadcast, photographers around the world took no ripples without taking any photos!

Editor's opinion time

If you ask me, water ripples are like love - the more you pursue perfection, the easier it is to have problems! Our company has been working on LED screens for more than ten years and found an interesting pattern:​ ​The more ripples the customer is, the worse the shooting effect will be.​ ​. Actually, just remember three points:

1. High refresh rate screen is the best
2. Shooting angle is more important than parameters
3. If you really can't handle it, just call the 400 hotline

After all, our 24-hour technical response center is not a good meal! Do you think this is the reason?

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