Green and blue brands: Silan, Jingyuan, Huacan, Sanan, etc., and other unknowns.
In addition to the brand, the size of the chip, affecting the stability and brightness of the lamp beads, etc.. The lamp beads made of the 10MIL reverse polarity chip and the lamp beads of other brands of 9MIL positive chip package, the brightness is different, the price is not One.
The same is the use of brand chips but small size LED display with large size screen, if the two screens are not put together, the naked eye generally does not see much difference. Externally can also claim to be a brand combination package. Speaking of this, there are definitely friends who will ask, what are the advantages of big, the brightness is almost the same, generally do not die, why do you want to buy a large chip at a high price? The answer is: large-size chip stability is definitely good, and some small chips In order to pursue the same brightness as a large wafer, it will be done in terms of angles, and the front side will not be seen. The side view will be different. The larger wafer has more diffusing agent added, and the angle is large, from the front or the side. The picture looks more saturated and more delicate. This is why some LED displays look very comfortable!
The packaging manufacturer's process control standards are different, the price is not the same. Like the industry Lehman packaged lamps, the quality of the lamps produced by other small factories is not the same, perhaps using the same raw materials, but different employees, different technologies, different quality Control standards, etc., the quality of the produced lamp beads is also very different.
In addition, the LED display manufacturers have different process standards, the staff proficiency is different, the quality control standards are high and low, and the display screen produced is ever-changing.
In summary,
If you want to buy a good led display,
First, it depends on the grade of raw materials used;
Second, it depends on the salesman's realism about the brand;
Third, visit the factory, look at the factory process standards, staff proficiency and technical mastery level, quality testing standards, etc.;
Fourth, whether the appearance of the finished screen is rough, flat, and so on,
Fifth, the salesman's tracking of your order screen is in place.
Sixth, whether the after-sales is in place, and so on.
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