You will find a lot of LED display
producers here in China. Many owners of factory, they have been involved within
this field for greater than 10 years.
But how you can pick a appropriate LED
display. perhaps is actually a old topic. but as far as I know, several friends
have no idea about this ahead of they came to China. I decide on the
word"suitable", not "good". since distinct client has
diverse requirement. very good will not imply suitable, but suitable does
implies very good for you.( led lamp controller)
it often considered as a project if you
want acquire a LED display. so you must possess a budget on it, one
hundred,000, 80,000 USD? some thing like this. Then, it is the information
about your project, for example:
1. exactly where will probably be the LED
show installed? indoor or outdoor?
two. what message content is necessary?
videos, photos, or simply characters?
3. what dimension will likely be your
screen? width, height?
4. what is going to be the minimal viewing
distance from your screen to the closest spectators?
five. what's the distance from LED screen
to manage technique?
six. what is the installation type? inlay,
pole, or something else?
after these details, you'll be able to get
a basic answer from the supplier. for instance,you would like an outside show
for ad displaying, viewing distance is about 17 meters, you prepare 100,000 USD
for it, and the supplier may possibly suggest P16,Cree LED chips, 40 square
meters. ok, this resolution sounds excellent, then you definitely could wanna
check the top quality, this really is most significant for you. you don't want
invest 100 USD to get a piece of paper. so, the way to judge the quality, maybe
you can consider based on under data(dmx512
master controller)
Important Variables:
1. Smoothness (plainness on surface)
Maintain the smoothness inside 1 millimeter
to insure the image not been curved.it depends upon assemble tech.
two. Brightness
For indoor LED show, it must be greater
than 800cd/sq.m and for outside, it should be more than 1500cd/sqm. If
brightness also low, the image will likely be totally vague.brightness depends
on LED lamps you adopt and other factors
three. Viewing angle
normally speaking, for outside displays,
viewing angle for horizontal is about 110 degree, and for vertical is 90
degree. the bigger the better.
4. White balance.
To show a pure white colour, the ratio of
RGB is 3:6:1, wacth if there's blue or red color in white colour. This element
mainly is determined by manage method and LED lamps
five. Color restorable.
The color on LED screen ought to consist
with show resources to keep a good image.
6. Malfunctions dot, mosaic
Make sure there is no dead dot and mosaic
on display
These aspects are extremely critical when
decide on a LED display, it is diffecult to maintenance for some unprofessional
consumers.( Dali
controller Manufacturer, DMX
signal amplifier)
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