The composition of outdoor LED display module

LED module is the most important part of the LED display screen. It's just like the face of man that through it we can see "facial expression". Outdoor led display module usually ranges from pixel pitch 10mm to 25mm. Nowadays P10mm and P16mm are the mainstream spec in this field. And for most led display manufacturers, the spec P10mm is still the smallest pixel pitch they can do. But with innovative production technology, we can now supply P6mm and P8mm outdoor led display modules. Generally the major parts of outdoor led display module are similar. It contains below 5 major parts:

1. LED. LED chip brand varies a lot such as NICHIA, CREE, SILAN etc; in addition with different encapsulation companies, the finished LED in market could have hundreds of different quality levels. It's hard to tell the quality difference with only seeing those LEDs, even the newly finished led display screen. To verify the quality performance, there's no better way than seeing its performance after long time running. This is a hard problem when the customers source the led displays because probably their potential supplier's led displays seem to have little difference. But just like the saying "you get always what you paid for", it is impossible to get the best quality led display in the lowest price. Sometimes this common sense is thrown away when consider the dollars could be saved. In fact, this is even not a way to save the cost because at least a seller should be confident enough to offer 3 years warranty. So when there's continuous problem happen, the after sale service you have to do will consume up what you have saved into the pocket - and maybe it would be not enough. The worse point is the lose of reputation, remember the led display screen is installed where all the people could see. When a seller's installation are all poor quality things, nobody would like to buy the same. As a conscientious led display manufacturer in China, we don't recommend our customers use those poor quality led displays. And we have enough good references all over the world, which are more convincing than thousands words to say in paper.
And certainly we consider the affordable cost too. So we consider is in fact the "cost performance". At present we mainly use EPISTAR LED, which is acknowledges to be the very good quality, and better than China mainland brands. If you're interested to learn more details, please contact http://china-led-display-screen.blogspot.com

2. Driving IC. The driving IC plays the role just like the "nervous system" to a human body. It controls directly each LED's on & off, the brightness, the frequency etc through the precise current feed. So the current precision and durability of it is very important. Just like the LED, there're more than enough brands driving IC in market. We use mainly the reputable Macroblock brand. And the major spec for outdoor led display modules is MBI5020.

3. PCB. There's no necessary to explain much about the importance of the PCB (printing circuit board) - it's the body to carry all the key components, and all the circuits are on it. The PCB we are using is KB FR-4 PCB, and its thickness is 1.6mm.

4. Module Kit. The module kit contains 10-15% glass fiber which made it more durable.

5. Waterproof silicon glue.

This is just a simple explain, if you're interested to learn more, please contact http://china-led-display-screen.blogspot.com