Difference between surface mounted LED display and plug in display
Author:He Yongqiang Time:2021-10-10 09:55 Browse(70)
Now?
At present, there are two kinds of lamp beads in the display screen of
LED

Difference between surface mounted LED display and plug in display

which are plug-in and surface mounted.
the application range of the two kinds of screens is different.
now I'll take a look at the difference and application range of the two.


plug in
LED
display screen uses a single
LED
tube.
its pins pass through the circuit board, For example,
3
LEDs and
4
LEDs are used as a pixel,
they use single or multiple red, green and blue LEDs, In order to improve the color mixing effect and brightness of the display screen.
some displays even take
5
or
6
LED tubes as a pixel.

to meet the requirements of more stringent outdoor environment on brightness, brightness and brightness
Color and contrast requirements.



pixel spacing

for example,
(p16) led display with pixel spacing
16mm
indicates that the distance between pixels is
16mm
.


some manufacturers approximate the measurement results.
for display with pixel spacing
15.5mm
or even
16.5mm
,
The actual pixel spacing is still called
16mm
.
some manufacturers also give virtual pixel spacing or effective pixel spacing.
it is obtained by
compressing the information of the source image and sharing the information between pixels.


Because the in-line
LED
display screen can emit very bright light.
and its circuit board and
LED
can be packaged together, which can prevent it from being damaged by water and other objects,
This kind of display screen is often used outdoors.

most outdoor display screens have a brightness of
5000nt (CD / m2)
.
although the brightness of the updated
LED may be much brighter than this.


SMD LED
displays use
rgbled
chips.
there are
3
very small chips in a single node soldered on the surface of the circuit board.


due to the fact that the SMD LED is used in the display screen,
rgbled
chips The brightness of the surface mounted display screen is lower than that of the plug-in display screen.

so not long ago, its application field was mainly indoor.
the brightness of the typical surface mounted indoor display screen is
1000NT
~
2000nt
.
which is much brighter than the ordinary
LCD TV with brightness of
400nt
.

a few years ago.

new surface mounted display screen has been put into the market,
Its brightness is more than enough for outdoor environment,
some of them also have
waterproof function, so they can be protected from external objects without additional lens or protective layer.


recently.

some
LED manufacturers have begun to produce four in one
(rggb
or
rrgb)
or multi in one surface mounted displays,
However,
before, they only used a single red light at each node Green light and blue light
LED
are used as pixels.


LED
display screen is usually described by its pixel spacing.
it refers to the distance between pixels on the display screen.
unit
is mm
(mm)
.
for plug-in
LED
display screen.
refers to the distance between
LEDs of the same color
<
for surface mounted
LED
display, it refers to the distance between the center points of surface mounted components.


manufacturers usually claim that their virtual pixel display can improve the resolution to
2 times of the original.
and provide
16 / 8mm
or
24 / 12mm led
display, In fact,
effective resolution can improve the display resolution by
60%
~
75%
, which some manufacturers have pointed out in their technical data, However, some manufacturers still quote the resolution after doubling.

although the performance of some products has been improved.

people still hold different opinions on the real performance of these products.
LED is the abbreviation of LED.
LED has the characteristics of high brightness and long service life, And the large screen monitors on the roadside are made of it, including monochrome and color
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