Alas, have your LED large screen encountered such embarrassment? The equipment you bought for a lot of money always feels gray when you advertise when you release it, or you can’t see the words clearly in broad daylight. Don't rush to blame the quality of the display,​80% of your parameters are not adjusted correctly​! Today we will talk about this overwhelming parameter setting. Keep it to you after reading it.

1. Where is the parameter setting hidden? Remember the three entrances

When I first entered the industry, I thought I had to unbox the chassis and find the buttons when adjusting the parameters. In fact, the current high-end screen has long been "fool-style" operation.​There are three main-stream settings portals​：

1. ​Control software interface​: Just like the settings app on your mobile phone, 80% of the parameters are now adjusted here
2. ​Physical Control Panel​: Some engineering screens will have physical buttons hidden on the side of the box, which is suitable for emergency debugging.
3. ​Mobile Mini Program​: Some new models support Bluetooth connection, and the brightness can be adjusted on the sofa

To give a real case, when I installed poster screens for chain convenience stores last year, the store manager insisted that the screen display effect was too dazzling. Our technician took out his cell phone,​Reduce the brightness from 1200cd/m² to 800cd/m² in the WeChat applet​, when the color temperature is set to 4500K, there will be a warm shopping atmosphere immediately.

2. Five must-adjust Vajra parameters

Don't be scared by the dense parameter table. Beginners just need to keep an eye on these five key items:
​​① Brightness​: Indoor screen is recommended to be 800-1200cd/m², outdoor screen must reach 4000+cd/m² to withstand the sun
​​② Refresh rate​: It is not possible to shoot the scan line at 1920Hz, and it is best to use 3840Hz on the stage screen.
​​③ Color temperature​​: 3000K is warm yellow light, 6000K is cold white light, shopping malls usually use 5000K natural light
​​④ Grayscale​: 16bit is the basics. If you want to be smooth and smooth, you must choose 20bit to go up
​​⑤ Contrast​: If you are less than 5000:1, don't think you have a sense of transparency. Only when you can darken it will light up

I remember when I debugged the fence screen of a stadium last year,​Increase the refresh rate from 1920Hz to 2400Hz​​, even the athletes' sweat beads were clearly seen during the live broadcast, and the director's live praise was more delicate than the broadcasting car.

3. Hidden skills that advanced players understand

After getting familiar with the basic parameters, these advanced functions can make your screen display more professional:
✔ ​​Intelligent light sensing​: Connect an environmental sensor, the screen will automatically change to brightness as the sky is dark
✔ ​Regional control​: Cut the large screen into advertising area + clock area + weather area, adjust each parameter
✔ ​​Preset scenes​: Save "conference mode", "performance mode" and "power saving mode", switch with one click
✔ ​Remote monitoring​: The screen installed in the chain store, the headquarters can see the operating parameters of each screen in real time

There is a customer who runs a bar who is very good at playing.​The "trampling sensing" is set up in the dance floor tiles screen​, the more excited the guests dance, the more explosive the screen particle special effects, which directly led to a 30% increase in alcohol sales.

4. How to save the parameters from being chaotic? Three moves to come back to life

Novice are most afraid of hand-sliding and correcting wrong parameters, don’t panic! These three tricks can help:

1. ​​Factory reset​: Just like a mobile phone is restored to factory, all parameters are cleared with one click
2. ​​Configuration file backup​: After adjusting the parameters, save a backup file and import it directly if something happens.
3. ​​Dual system hot standby​​: High-end control cards have AB systems, and the main system crashes and cuts them in seconds and is used for backup.

Last month, I changed the poster screen to the mall, and the new electrician changed the color space to the NTSC standard, and the entire screen was as green as a horror movie.​Remote call back up of parameters three months ago​, the normal display will be restored to ten minutes, which is much faster than sending people to repair on site.

If I want to tell you, the LED display is a fine job of "three-point hardware and seven-point adjustment". I have seen too many cases of spending a lot of money to buy high-end screens, but the parameters are randomly adjusted and ruining good equipment.​​Remember a truth: Good parameters are more important than expensive hardware​​! Next time you encounter display problems, don’t rush to report repairs. Take out your phone to adjust the parameters, maybe you can save a lot of repair costs. By the way, many manufacturers now provide lifelong free parameter guidance services. Don’t be shy when you encounter difficulties. Ask when you ask - after all, the real display owner is the one who can understand the parameters.

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