Walking on the commercial street, you will find that 65% of physical stores have begun to use two-color LED screens instead of printing posters. Why are the red promotional information in some stores always blurred? ​ ​Pixel pitch, driving method, protection level​ ​The three core parameters directly determine the input-output ratio of advertising screens.

1. Technical indicators that must be confirmed before procurement

​​“What should I do if the red and yellow display effects are very different? ”​ ​
The actual data show that the display screen using static driver ICs has a 42% increase in color uniformity compared to the scanning solution. Key verification:

• ​​Pixel density​ ​: P10 model is suitable for 15 meters of appearance, P6 is suitable for 8 meters of scenes
• ​​Brightness level​ ​: Street shops need ≥4000cd/m², indoor shops are recommended 1200cd/m²
• ​​Protection level​ ​: Outdoor use must meet IP54 dustproof and waterproof standards

A chain supermarket once ignored the grayscale parameters during procurement, resulting in color block faults in the yellow price tag, and the additional expenditure of replacing equipment within three months was 28,000 yuan.

2. Five golden rules for supplier screening

​​“What hidden costs are hidden in the quotation? ”​ ​
After comparing the contract terms of 7 suppliers, I found that:

1. ​​Warranty scope​ ​: The agreement with driver power supply repair can reduce the annual maintenance fee by 3,800 yuan
2. ​​Installation standard​ ​: Provide structural load-bearing calculations to reduce accident rate by 67%
3. ​​Technical certification​ ​: Products with CCC/CE certification have increased their lifespan by 2.3 times

Special reminder: Suppliers are required to provide 72-hour aging test videos, which can screen out 90% of inferior lamp beads.

3. In-depth disassembly of price composition

​​“What is the difference between 5,000 and 10,000 equipment? ”​ ​
Reveal the truth about the cost through comparison table:

Procurement data shows that equipment using die-cast aluminum box has a corrosion resistance of three times compared to sheet metal structures, which is especially suitable for coastal areas.

4. Pit avoidance guide for acceptance

​​“If the power-on test is normal, is it considered qualified? ”​ ​
The acceptance list of professional engineers includes:

• ​​Color gamut test​ ​: The red wavelength must be stable at 625±2nm
• ​​Temperature rise detection​ ​: The surface temperature is ≤45 for continuous working hours℃
• ​​Seismic test​ ​: No pixel point falls off at 1.5mm amplitude

A catering brand found that the numbers were incomplete on the day of opening because it did not conduct a grayscale gradient test, and directly lost 23% of its customer flow.

Industry research shows that the display screen using fully automatic SMT patch technology has a 81% reduction in failure rate than manual welding products. Personal advice: Priority is given to companies with a monthly production capacity of over 10,000 square meters. The incoming material quality inspection system of this type of manufacturer is usually more complete, and the delivery cycle can be shortened by 18 days when encountering batch orders. Remember to keep the brightness attenuation curve chart, which is the core basis for determining whether the device needs to be replaced in three years.

for more product information and pricing, please contact us .