Industrial Belt Distribution and Site Selection Logic

The global LED monochrome screen production base is mainly distributed in the three major regions of the Pearl River Delta, the Yangtze River Delta and Fujian. in​ ​Bao'an District, Shenzhen​​As the core area of the country's LED industry, more than 60% of display companies are gathered. The advantages here are:

• ​​Half-hour industrial chain​​: From lamp bead packaging to driver IC research and development, complete the full process of supporting within 30 kilometers
• ​​Policy support​​: The government invests 230 million yuan in special funds to support the optoelectronics industry every year
• ​​Talent reserve​​: 7 universities have set up optoelectronics majors, with annual output of more than 8,000 technical talents

When choosing a supplier,​​Don't just look at the factory area​​! On-site inspections should focus on three points:

1. ​​Aging test workshop​​Is it equipped with 72-hour uninterrupted testing equipment?
2. ​​Anti-static measures​​Whether it meets the standard of a level 10,000-level dust-free workshop
3. ​​Logistics flow line​​Whether to realize the management of raw materials and finished products

Three hard indicators of high-quality suppliers

​​Technical parameters bottom line​​：

• Outdoor screen brightness ≥5000cd/m² (visible under the scorching sun)
• Protection level IP65 (resistant to heavy rain erosion)
• Pixel failure efficiency <0.0001% (one in one hundred thousand)

​​Production strength verification​​：
Check whether the company has:
✔ Fully automatic patch production line (Error ±0.01mm)
✔ Three-proof paint automatic spraying equipment (moisture-proof and corrosion-proof)
✔ Spectroscopic analyzer (chromatic aberration control ΔE＜3)

​​Service network standards​​：

• 24-hour door-to-door response within 200 kilometers
• Three-year free dead light replacement clause
• Provide light pollution solutions (such as automatic brightness adjustment module)

Site selection guide to avoid pits: The thunder that I have stepped on in those years

​​Price Trap​​：
There are two "low price" routines in the market:

1. ​​Improper brightness​​: Use indoor screen to impersonate outdoor screen, and the actual measured value has shrunk by 40%
2. ​​Used renovation​​: The power module/control card uses recycled parts, and the failure rate soars by 300%.

​​Certification mystery​​：
Identify three essential certifications:

• ​​CE certification​​(Electromagnetic compatibility guarantee)
• ​​ROHS certification​​(Testing for heavy metal content)
• ​​ISO9001​​(Quality Management System)

​​After-sales black hole​​：
A case warning of procurement by an educational institution—the contract must be clarified:
❗The maintenance response time (such as "resolution is issued 8 hours after fault repair")
❗The warranty scope (including labor costs/transport fees)
❗Software upgrade service period

Editor's opinion

Instead of worrying about "where the manufacturer is", it is better to focus on "where can provide system solutions". The value of industrial clusters is not only a cost advantage, but also a guarantee of the speed of technological iteration - for example, Shenzhen companies will upgrade their driving algorithms every 6 months on average. Next time you visit a supplier, you might as well bring a grayscale test card to verify the display effect on the spot. This is much more than bragging about sales!

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