What is the difference between LED full color display and LED display
Author:Lilia Time:2021-09-26 09:41 Browse(54)
LED full color screen belongs to a kind of LED display screen.
Led full-color screen is a kind of LED display.

What is the difference between LED full color display and LED display



generally, LED display industry classifies display screen as follows:

according to the use environment, it can be divided into outdoor display screen, semi outdoor display screen and indoor display screen.


according to the display color, it can be divided into full-color display screen (three primary colors), two-color display screen (two primary colors), three-color display screen (two primary colors) Monochrome display screen (monochrome)

according to the basic components, it can be divided into dip plug-in (outdoor display screen), SMD patch (mainly used indoors.
also used outdoors)

detailed classification of LED

1. According to the luminous color of LED

according to the luminous color of LED, it can be divided into red, orange, green (subdivided into yellow green, standard green and pure green) In addition,
some light-emitting diodes contain chips of two or three colors.


according to whether the light-emitting diodes are doped with or without scattering agent, colored or colorless.
the light-emitting diodes of the above colors can also be divided into colorless transparent, colorless transparent, colorless transparent, and colorless transparent There are four types of light emitting diodes: colored light scattering and colorless light scattering.
light emitting diodes are used as indicator lamps.


2. According to the light emitting surface characteristics of light emitting diodes, they are divided into round lamps, square lamps, rectangular lamps, surface emitting diodes, side tubes, surface mounted microtubules, etc.
round lamps are divided into four types according to the diameter φ 2mm、 φ 4.4mm、 φ 5mm、 φ 8mm、 φ 10mm and φ In foreign countries, the φ 3 mm LED is recorded as T-1; hold φ 5 mm was recorded as T-1 (3 / 4); hold φ 4.4 mm is denoted as T-1 (1 / 4).
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The angular distribution of circular luminous intensity can be estimated by the half value angle.
according to the angular distribution of luminous intensity, it can be divided into three categories:

(1) high directivity.
generally, it is a pointed epoxy package.
or it is a package with a metal reflector without a scattering agent.
the half value angle is 5 ° to 20 ° or less.
it has high directivity and can be used as a local lighting source, (2) standard type.
is usually used as indicator light.
its half angle is 20 ° to 45 °.

(3) scattering type.
this is the indicator light with larger viewing angle.
half angle is 45 ° to 90 ° or more, According to the structure of light-emitting diodes, there are three types of light-emitting diodes: all epoxy encapsulation, metal base epoxy encapsulation, metal base epoxy encapsulation, metal base epoxy encapsulation and metal base epoxy encapsulation According to the luminous intensity and working current, led with ordinary brightness (luminous intensity <10mcd) can be divided; Ultra high brightness LED (luminous intensity> 100mcd); The high brightness LED with the luminous intensity of 10-100mcd is called high brightness LED.


the working current of general LED is more than 10 Ma to tens of Ma.
while the working current of low current LED is less than 2mA (the brightness is the same as that of ordinary LED).

in addition to the above classification methods.
there are also classification methods according to chip material and function.
in addition to the above classification methodsThe difference between color screen and LED display screen:
color screen features
1. Modular design.
easy to install and maintain.

2. All aluminum structure module.
the weight is only about one third of that of conventional display screen, and has good weather resistance.

3. Transparent design.
does not affect the ventilation and lighting at the back of the screen, with small wind resistance.

4 Energy saving and environmental protection.
no auxiliary cooling equipment, natural air cooling and no noise.

5. It is more suitable for making super large area display screen.

6. It is designed for creative indoor and outdoor installation that attaches importance to long-distance viewing effect and transparency.

7. It is fast to install and can transmit light.
ventilation, large pixel spacing and high cost performance ratio.

8. Bright color.
fast response, Good display effect, high reliability, long service life, environmental protection and energy saving the size can be adjusted at will.

11. Easy production.
maintenance, good heat dissipation and high stability.

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characteristics of LED display screen
1. High brightness: the brightness of outdoor LED display screen is more than 8000mcd / m2.
it is the only large-scale display terminal that can be used outdoors all day; The brightness of indoor LED display screen is more than 2000md / m2.
the brightness of indoor LED display screen is higher than 2000md / m2
2. Long life: the life of LED is more than 100.
000 hours (ten years). This parameter generally refers to the design life, even if the brightness is dark
3. Large viewing angle: the indoor viewing angle can be greater than 160 degrees, and the outdoor viewing angle can be greater than 120 degrees.
the size of the viewing angle depends on the shape of the LED.

4. The screen area can be large or small.
as small as less than one square meter, as large as hundreds or thousands of square meters
5. It is easy to interface with computer and supports rich software.

6. Comparison of common large display terminals.
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