2015年11月9日星期一

How to decide on a appropriate LED show




You'll find numerous LED show manufacturers here in China. A lot of owners of factory, they've been involved within this field for greater than ten years.
But the way to pick a suitable LED show. perhaps can be a old subject. but as far as I know, a lot of close friends have no idea about this before they came to China. I decide on the word"suitable", not "good". since diverse client has various requirement. excellent does not imply appropriate, but appropriate does indicates good for you personally.( led lamp controller)
it constantly regarded as a project if you want buy a LED display. so you ought to possess a spending budget on it, one hundred,000, 80,000 USD? one thing like this. Then, it really is the details about your project, such as:
1. where will probably be the LED show installed? indoor or outside?
two. what message content is required? videos, images, or just characters?
3. what dimension will be your screen? width, height?
four. what will likely be the minimal viewing distance from your screen for the closest spectators?
five. what's the distance from LED screen to control program?
six. what's the installation variety? inlay, pole, or anything else?
right after these data, you are able to get a general answer in the supplier. for example,you need an outside display for ad displaying, viewing distance is about 17 meters, you prepare one hundred,000 USD for it, along with the supplier could recommend P16,Cree LED chips, 40 square meters. ok, this solution sounds excellent, then you could wanna check the good quality, this really is most important for you personally. you do not want commit one hundred USD to get a piece of paper. so, how to judge the top quality, perhaps you can take into account based on under data(dmx512 master controller)
Crucial Aspects:
1. Smoothness (plainness on surface)
Keep the smoothness within 1 millimeter to insure the image not been curved.it is determined by assemble tech.
2. Brightness
For indoor LED show, it need to be greater than 800cd/sq.m and for outside, it should be more than 1500cd/sqm. If brightness also low, the image will be totally vague.brightness is determined by LED lamps you adopt and also other variables
three. Viewing angle
generally speaking, for outdoor displays, viewing angle for horizontal is about 110 degree, and for vertical is 90 degree. the larger the better.
4. White balance.
To show a pure white colour, the ratio of RGB is three:6:1, wacth if there is blue or red colour in white color. This factor mainly is dependent upon handle system and LED lamps
five. Colour restorable.
The colour on LED screen should consist with display resources to keep an excellent image.
6. Malfunctions dot, mosaic
Make certain there is no dead dot and mosaic on show
These factors are extremely critical when pick a LED show, it is diffecult to upkeep for some unprofessional customers.( Dali controller Manufacturer, DMX signal amplifier)

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