Are newbies who are new to the LED industry often confused by various professional terms? Especially when you want to purchase a display screen, isn’t it both familiar and unfamiliar to hear the word “OEM”? Today, let’s take a look at the tricks in this industry. Maybe next time you choose a product, you will have a clear idea.

​​Ask a heartbreaking question first​ ​: Why can the price of LED screens of the same size be two or three times different on the market? Is it the business that cheats people? Actually, I have become more knowledgeable here. Just as mobile phones are divided into original manufacturers and OEMs, the manufacturing mode of LED screens is also divided into several ways to play. Let’s focus on the most common OEM model - this model is not a simple OEM production, but involves the reconstruction of the entire set of technical solutions.

Let’s first look at the hard-core data of the group: the industry’s leading OEMs generally have automated production lines with a monthly output of more than 10,000 square meters, and all robotic arm operations are realized from SMT patches to module assembly. You may not know that there are more than 200 processes hidden in an ordinary outdoor advertising screen, and there are millions of welding points alone. At this time, the quality control capability of the OEM factory directly determines whether the screen can last for three or five years.

​​The three core elements of OEM model​​：

• Raw material selection: For example, should the lamp beads choose 3-in-1 packaging or COB integration? Which decoding scheme is used for driver IC?
• Process standard: The box splicing accuracy is controlled at 0.02mm or 0.5mm? Is the heat dissipation structure an air duct design or a natural heat dissipation?
• Test process: Do aging tests for 48 hours or 72 hours? How many cycles does the temperature and humidity cycle test take place?

Experienced buyers will focus on these key points. For example, the outdoor screen of a certain OEM factory can achieve extreme environmental testing of -40℃ to +85℃. This product is particularly down-to-earth in the Northeast snowfield or the Middle East desert. For example, their floor tiles are set to be load-bearing standard at 2 tons/m2, which is three times higher than the industry's conventional standards. There is no need to worry about being crushed by the equipment when used on the concert stage.

​​Now answer the core question​ ​: What exactly does the OEM rely on to gain a foothold? Let's look at it from three dimensions:

1. ​​Technical precipitation​ ​: For example, the independently developed brightness adaptive system can automatically adjust to the most comfortable viewing effect according to ambient light. For example, the box quickly disassembles the structure, and two people can complete the 16-square-meter screen construction in three minutes.
2. ​​Production system​ ​: The fully automated production line is combined with the MES system, and each module has an independent electronic ID card, which can trace the production batch and quality inspection records at any time.
3. ​​Service support​ ​: 7×24-hour technical response is not just a statement. Some manufacturers even set up spare parts warehouses overseas. Southeast Asian customers can bring accessories to their door within 48 hours when encountering problems.

To give a real case: the fence screen used in an international event was used by the OEM and the OEM conducted more than 200 shock-proof tests six months in advance, and even the box screws were converted to aviation-grade titanium alloy. This invisible investment is the soul of the product, and may be more important than the parameters of the screen itself.

​​Purchase and avoid pits​ ​(must read for beginners):

1. Don't just look at the price, you need to confirm the brand and packaging process of the lamp beads
2. Let the manufacturer provide a brightness attenuation curve for at least 12 months
3. On-site test of grayscale transition and color reproduction
4. Check whether the three-proof certification (waterproof/dust-proof/corrosion-proof) is complete
5. Ask for the warranty scope and response timeliness

Finally, let’s say a little truth: There is no so-called “perfect solution” in this industry. The key is whether OEM can make targeted optimizations based on the usage scenario. For example, when used in shopping malls, you should focus on cooling and silent screens. If used on stage, you should consider disassembling and assembly quickly. If used outdoors, you must resist ultraviolet aging. Next time someone brags about how good the parameters are, remember to ask back: Can these designs really be used in my usage scenarios?

Editor's opinion: Instead of worrying about who the OEM is, it is better to conduct a real investigation on the production process and case site. A truly good product can speak by itself, and time will give the best proof of those care hidden in the details.

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