Hey! Friend, are you just getting in touch with the LED display and wondering, "How does this big screen connect to the computer to display content?" Don’t worry, today we will talk about this in plain language! (Photo your chest) I can guarantee that you will definitely be able to talk to others after reading this article!

1. First understand the most basic question: How does the computer screen run onto the LED screen?

Let's first imagine a scene - you are playing a movie on your computer and suddenly want to cast the picture onto the large LED screen in the conference room. At this time,​ ​Computers are like directors, LED screens are super large screens​​. How to operate it specifically? I'll tell you in three steps:

1. ​​Hardware hand in hand​​: Use an HDMI cable or network cable to connect the control card of the computer and the LED screen, which is the same as charging the mobile phone. Now high-end devices can be connected wirelessly, such as our company's rental screen, which can be paired in 30 seconds.

2. ​​Software bridge​​: Install a control software (such as common LEDVISION), and the computer will transform into a remote control. You can select videos, adjust brightness, or even play split-screen display - put PPT on the left and broadcast promotional videos on the right, just like the split-screen function of your mobile phone.

3. ​​Signal conversion​​: The computer's RGB signal will be "translated" into instructions that the LED screen can understand. This process is like translating Chinese into English. The video processor in professional equipment is the translator, ensuring that the picture does not stutter or drag.

2. There are ways to connect hardware, so pay attention to these details!

Don't think that just inserting a wire is done! I've seen too many newcomers fall into these pits:

• ​​The cable is wrong and the screen crashes​​：
  It is best to use fiber optic cables for outdoor large screens, and the transmission distance can reach 500 meters without attenuation. Just use an ordinary network cable for indoor small screens, but remember to buy a shielded one, and the WiFi signal in the next office will not cause trouble.

• ​​Power supply must be independent, safety is the first priority​​：
  LED screens and computers​ ​Different sockets must be connected​​! Last year, a customer tried to save trouble and shared the plug-in and the voltage was unstable and the control card was burned, and the repair fee was enough to buy three new computers.

• ​​Don't mess up the interface, it will hurt if you insert it incorrectly​​：
  Please identify the "computer input" interface on the control card (usually a blue HDMI or a black network port), and the "output" port next to it is for the next screen to be connected in series. If it is inserted incorrectly, the screen will be black for you to see.

3. The software settings are actually very simple. I will teach you how to play with the console step by step.

Don’t panic when opening the control software! Focus on these three places:

1. ​​Screen parameter settings​​：
   Here you need to fill in the LED screen​ ​Resolution​​and​​Scan method​​. For example, our company's P4 outdoor screen resolution is 256x128. Choose 1/16 to scan. If the picture is filled in incorrectly, it will look like an old TV snowflake screen.

2. ​​Content schedule function​​：
   You can set the promotional advertisements at 9 a.m. and automatically switch to the news broadcast at 6 p.m. A supermarket customer uses this function and saves 2 hours of manual operation time every day.

3. ​​Automatic brightness adjustment​​：
   The intelligent light sensing module will automatically adjust according to the environment light and dark. It can be seen clearly at noon to 8,000 nits, and it will automatically drop to 200 nits in the middle of the night. This feature helps stadium customers save 35% of their electricity bills.

4. Reveal the common problems. Don’t go crazy when you encounter situations!

The answers to the three most frequently asked questions for beginners are here:

​​Q: Why does the computer display normally, but the LED screen keep flashing? ​ ​
A: Ninety percent​ ​Refresh rate mismatch​​! In the control software, adjust the output frequency to above 1920Hz and solve it immediately. Just like the difference between 90Hz and 60Hz on mobile phone screens, the higher the frequency, the more stable it is.

​​Q: What to do if there is a ghost on the screen? ​ ​
A: Eighty percent​ ​The transmission distance is too long and the signal is attenuated​​. I will teach you a trick: add a signal amplifier between the control card and the computer, the principle is the same as adding a repeater with a router.

​​Q: What to do if the screen suddenly becomes black? ​ ​
A: Do these three steps first:

1. Check the power indicator (on the red light means the power is off)
2. Shake the cable connector (poor contact accounts for 60% of the failure rate)
3. Restart the control card (hold the power button for 10 seconds)
   It can basically solve 80% of emergencies.

5. Personal opinion time: The future has come, and the screen is redefining the space

If I want to tell you, LED screens are no longer just display tools. Look at the curved advertising screen we made for Singapore, which can push customized advertisements based on the mobile phone signals of passers-by ； The transparent window screen in Korea is turned into a screen during the day and at night. This thing is breaking the boundaries between virtual and reality!

What's even more amazing is​​Low bright high gray technology​​Even if the brightness is adjusted to 10%, the color is still as delicate as an oil painting. Last year, the fence screen at Tokyo Stadium used this technology. You can see the game clearly during the day and broadcast it without turning on the lights at night. It is environmentally friendly and saves money.

After all, the linkage between LED screens and computers is not just a technical issue, but also an extension of creativity. Just like the director has an IMAX screen and the programmer has a 4K monitor, our imagination needs a larger canvas to expose it! Do you think this is the reason?

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