My friend wanted to install an LED screen in a newly opened hot pot restaurant, but he couldn't find a suitable one in the building materials market? I'm so familiar with this matter! Last year, I helped the wedding company find a stage screen. I was fooled to look at eight stores for three consecutive days, and finally found that a reliable supplier was just around the corner of the industrial area. Let’s talk about it today. Where are the LED screens you see every day hidden? Let’s teach you a few tips to avoid pitfalls.
1. The hiding place of LED screens all over the street
You may not believe it. Most of the places we pass by every day have LED screens installed:
▎Mall complex transforms into advertising wall
- The giant screen hanging in the atrium is broadcasting cosmetic advertisements
- The vertical screen display floor guide of the elevator entrance
- Even the door of the fitting room is equipped with a small screen to promote new models
Last month, I went to a shopping mall and found that the toilet mirrors were replaced with interactive screens - this thing is really pervasive now.
▎The gymnasium turns into a light show in seconds
- The fence screen around the basketball court shows the score
- The circular screen above the auditorium plays the wave effect
- Player channel arch screen bright star poster
Last year, I watched the CBA Finals and saw the technician change the 16 damaged module in 5 minutes. The repair speed is amazing.
▎Transportation hub transforms into information station
- Train timetable screen on subway platform
- Flight information on the airport luggage carousel
- Weather warning for expressway service areas
The most amazing thing is that I have seen the solar screen on the bus stop. It can last for three days on cloudy days. Now this technology is really...
2. Where should I go to buy a screen?
Don't rush to open a shopping website. Let me first talk about these three reliable channels:
▎Hidden dragons and tigers in professional markets
- LED industrial park in Beijing, Shanghai and Guangzhou (there are clusters in Bao'an, Shenzhen)
- Advertising equipment market next to Auto Parts City
- JuRan Home/Red Star Macalline's commercial display area
Last week, I took people to the market to pick up screens and found a rule: the store has photos of engineering cases, which is much more reliable than those who only know how to sing parameters.
▎Industry exhibitions to find treasure land
- Guangzhou LED Exhibition in March every year (new products are first touched)
- Beijing Lighting and Audio Exhibition in September (Stage screens gathered)
- Local Digital Economy Expo
Last year, I found a single screen of foreign trade in the exhibition, and the price was 40% cheaper than the market, so I had to get the customs declaration form myself.
▎Online platform pit prevention guide
- Searching for "project residual materials" in Taobao may find treasure
- Transaction section of the Industry Forum (remember to go with guarantee)
- Watch factory live broadcasts on short video platforms (requiring business license)
But I have to remind you that you must not save the logistics insurance fee for online screens. Last year, a package of screens was shipped to Xinjiang and broke three pieces, and the loss was huge.
Three or three tricks to see through the screen
No matter how much the seller is boasting, remember these three hard indicators:
1. Be more serious about the blinding parameters
- Outdoor screen brightness is at least 4000 nits (you can see clearly at noon)
- Refresh rate 1920Hz is the bottom line (there is no ripple when shooting videos on mobile phones)
- Protection level IP65 starts (not afraid of short circuits on heavy rains)
There was a return inspection product with a light sensor, and the screen with a nominal 5,000 nits was only 3,800 yuan. The boss gave a 30% discount on the spot.
2. Get started with the touch and see it with your eyes
- The temperature of the heat dissipation hole (no more than 50℃ when working for 2 hours)
- Business card plugged in the border joints (don't buy if you can stuff it in)
- Knock the box and listen to the sound (buttful sound = solid structure)
The most outrageous screen I have ever seen, the back cover is as thin as a can, and it can be recessed with a light press.
3. Get after-sales guarantee letter
- The warranty period is written into the contract (the module is subject to passing the warranty for 3 years)
- Repair response time is accurate to hours (not to mention "as soon as possible")
- The stock of spare parts must be stated (don’t wait for three months to transfer the goods)
A gym owner suffered a loss, and the screen broke and waited for accessories for two months, and all the members ran away.
4. Installing the screen is the beginning
Don't think that everything will be fine after paying the payment. These follow-up operations are more important:
▎Monthly must-do maintenance list
- Use a brush to clean the dust (don't wipe it with a wet rag)
- Check the power cord connector (replace it quickly if oxidizes and turns green)
- Test backup signal source (HDMI port is prone to poor contact)
▎Software upgrade to prevent traps
- Ask if the system is upgraded for free for life
- Back up the original control program
- Don't install third-party plug-ins
Last year, a shopping mall upgraded the system and garbled the full screen and reinstalled it for more than 8,000 yuan. It was a lesson to be learned from tears!
▎Emergency treatment needs drill
- Have the same model of receiving card (200 yuan can help)
- Learn to manually switch signal sources (save your life at critical moments)
- Save the technician’s WeChat (you can wake up someone in the middle of the night)
The most awesome operation I have ever seen - after the screen is black, the network operator uses the hot-spot program to resume playback in five minutes, I will give this wave full mark.
Editor's opinion
To be honest, looking for an LED screen is like finding a partner, you can't just look at the appearance parameters. I met the most conscientious supplier last year, who taught customers step by step to do maintenance records and also sent cleaning sets regularly. There is an invisible standard in the industry now: those who dare to let customers visit the production line at any time will basically have a bad quality. The latest data shows that the failure rate of high-quality LED screens can reach below 5% in five years, which is more durable than mobile phones. If you look for screens next time, remember to ask if you can go to the factory to take a look - the seller who can see the truth is not wrong!
