LED
display screen also called electronic LED display screen or a
floating word screen. It is made up of LED dot - matrix LED PC Panel
and use red, blue, white, green LED lights up to display text,
picture, animation and video. The display content can be adjusted
according to different needs in different occasions. It can also be
changed at any time according to different needs; the components are
modular structure of various parts of the display. Traditional LED display is consisting of displaying module, control system and power
system.
LED
luminous colors and efficiency are related to the technology and
manufacture of LED materials. The entire LED light ball are blue and
then followed by phosphors, according to the different needs of
customers, we adjusted the light to different colors. Red, green and
blue widely used. Due to LED obtained the advantages of low voltage,
can light up the initiative, brightness and power consumption voltage
regulation, resistant to shock, vibration, and long life time(
100,000 hours ), therefore, in large display devices, there is no
other way to compete with LED display.
The
red and green LED chips or lamp put together as a single pixel, we
called it single color or monochrome screen or dual - color and
dual-color screen. The red, green blue LED chips are put together as
a single pixel; we called it tricolor screen or full color screen. If
there is only one color, we called it single color screen. Producing
an indoor LED screen pixel size is generally 2-16 mm while outdoor
screen pitch is 6-31.5 mm. Indoor LED display often use several
different color of LED chips packaging as a whole, while outdoor LED
display is composed of a number of monochrome LED. Common product
called pixel tube, bi-color pixel tube usually made up of 2 red 1
green and three - color pixel tube with 1 red 1 green 1 blue.
When
making a single color, bicolor or tricolor with LED screen, the
brightness of every pixel is demand to be adjustable. The precision
is the grey level of the screen. The higher the levels of gray, the
more exquisite and colorful images are, and the corresponding display
control system is also more complicated. General 256 - level
grayscale image, the color transition is very soft, while the 16 -
level gray scale color image, color transition boundaries are clear.
Therefore, color LED screens are currently required to make 256 - to
4,096 - level gray scales.
LED
display screen is obtaining attention and rapidly development is
depending on its great advantages. LED digital marquee sign possesses
the characteristics of environmental protection, high brightness,
high definition and high reliability. Outdoor digital LED pole sign
market is satisfied to people’s demands but LED display products
are below quality standards in the last stage. With the development
of LED display, LED products now have a new breakthrough, at least
had a great progress than last step. LED display screen will appear a
larger and broader space for development. LED displays are not only
has glorify effect but also making people’s working & daily
life closer.
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