Want to start a milk tea shop promotion, but the display screen I bought for 3,000 yuan was broadcast and then it got stuck in PPT? Various "manufacturer direct sales" advertisements were found online, but the screen brightness received was not as bright as that of mobile phone screens? I have stepped on all these pitfalls for you - as an old man who has been in the electronics market for five years, I'm talking about it today.

​​1. The first lesson to buy a screen: first figure out what you are going to do​
Many novices come up and ask, "Is there any cheaper one?" It's like going to a pharmacy to ask for medicine without telling the symptoms. You have to figure it out first:

• ​​Usage scenarios​: Should I place the counter of the milk tea shop (the indoors are as low as it is fine), or should I set up a night market stall (it must be high-bright and waterproof)?
• ​Play content​: Mainly static menu or dynamic video? This determines how high the refresh rate should be selected
• ​​Frequency of use​: Turn on for 12 hours a day and use 2 hours a week. The selected power module is completely different.

Last month, a little girl who opened a bakery shop bought a second-hand screen with a cheap price. As a result, when the cake was shown, the shadow was severely distorted. Customers thought the product was moldy... So, unclear demand is a waste of money.

​​2. Comparison of purchasing channels: You should know these tricks​
There are three main ways to buy screens now. Let’s talk about the pros and cons one by one:

​​▷ E-commerce platform (Small Taobao/Small Duo)​​
The advantages are obvious: transparent price, fast logistics, 7-day no reason
but! I have seen it with my own eyes at the industry exhibition that the configuration of the same P3 screen online and offline is far from the same - the online driver IC is a downgraded version, with a brightness drop of 30% faster

​​▷ Electronic Market Disk​​
Can see the effect on the spot, some can be installed
But be careful to refurbish the screen! A tip for you: touch the seams of the screen border. The original screen is flat like a mobile phone screen. The refurbished screen will feel burrs.

​​▷ Direct sales by manufacturers​
It sounds the most reliable, right? But here the deepest water—
Some so-called "manufacturers" actually only have two offices, and they only need to transfer goods after receiving the deposit.
Teach you a verification method: ask the other party to open a video to watch the workshop, and real manufacturers dare to display the assembly line in real time

​​3. Parameter interpretation: These numbers are related to the wallet​​
Don’t look at the merchant details page, keeping a blind eye on these parameters can avoid 80% of the pitfalls:

1. ​​Brightness (nit)​
   800-1200 is enough for indoor use, but it is impossible to see clearly during the day below 600.
   There is a quick test method: turn the screen of the phone to the brightest, and only the screen brighter than the phone is qualified

2. ​​Refresh rate​
   If you are doing catering, choose 1920Hz up, otherwise you will have corrugated food close-ups.
   During the test, you can shoot a hot pot video, and the soup must be coherent.

3. ​​Protection level​
   If you are outdoors, please identify IP65. Simple test: pour water on the cup after receiving the goods. If the card is controlled, it will be considered waterproof.

4. ​​Warranty period​
   The key is to see whether the warranty period of the power supply and the lamp bead are calculated separately. Some merchants protect the lamp bead for 3 years but the power supply is only half a year - this is just a thunder burial

​​4. Price Trap: These routines are waiting for you​
Let’s talk about some recent scams:

❶ ​"Pixel Virtual Improvement" technology​
In fact, it is just selling P4 screen as P3! Teach you how to identify: use the macro mode of your phone to shoot the screen, and there are several lamp beads within 1 cm

❷ ​​"Military-grade power supply" gimmick​​
Many of them are second-hand power supply refurbished! A truly reliable power supply must have CCC certification and weigh more than 1.2kg

❸ ​"Free installation" trick​
The most amazing thing I have ever encountered: the installation fee is free, but the "activation fee" and "decoding fee" are charged, which is even more expensive than buying a screen

Last month, I was inspecting the goods for a friend and found that a certain merchant claimed to be "imported lamp beads". As a result, he sucked it with a magnet - the lamp bead bracket could actually be sucked up (the authentic product should be aluminum alloy)...

​​5. After-sales guarantee: Don’t ignore these details​
The beginning is the beginning after buying the screen. These questions must be confirmed in advance:

• Fault response time (direct pass over 4 hours of response)
• Whether to provide backup machines (the bosses who are engaged in activities should pay special attention to it)
• Software update service period (many low-priced screens are only updated for half a year)

A customer who runs a clothing store suffered a loss. The screen he bought was fine in the first year, but the system was incompatible with the new video format in the second year, so the merchant had already run away...

​​6. The editor tells some truth about offending people​​
This industry is fierce in price wars, but remember: there is definitely a problem if it is 30% lower than the market price! According to data from the industry white paper last year, the material cost of regular manufacturers accounted for more than 55%. If you see a P4 full-color screen for 799 yuan, run away quickly - the lamp beads are probably a defective product by pound.

Now some manufacturers play "parameter games" and regard peak brightness as the normal brightness scale. I will teach you a tough trick: After receiving the goods, turn on the machine for 12 hours and measure the brightness of the 12th hour - it is reliable to maintain the initial brightness of more than 80%.

After all, there are three points when buying a small screen: clarifying needs, understanding parameters, and choosing the right channel. Don’t look at those fancy functions, the basic model can still attract traffic if it is used well. Next time I see a gimmick like "Artificial Intelligence Interactive Screen", I first ask myself: Do I really need to let customers chat with the screen?

for more product information and pricing, please contact us .