There are many
factors affecting LED display effect, such as brightness, screen
pixel pitch, surface flatness, lamp attenuation and the failure rate,
the use environment and so on. Here, TCB will explain the five
factors that affect the display effect of the LED display.
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| P4 Indoor Led Display |
One, pixel
pitch
The affect of
pixel pitch on clarity of screen is very obvious. The smaller the
distance between pixels, the more delicate the picture is displayed.
The reduction of pixel pitch must have mature technology as the core
support. From the current trend, the reduction of pixel pitch is the
inevitable choice of the market. However, the smaller the pixel
pitch, the greater the cost of its input and the higher the price.
Two, the
flatness of the panel and the reflectivity of the panel surface
The convex or
concave of led display will cause the dead corner of the viewing
angle. Surface roughness should be within ±1mm, to ensure the
display image is not distorted. TCB LED display have special
treatment on mask and LED light tube, in order to ensure the smooth
surface of the screen while reducing LED panel reflectivity. It can
improve the contrast of the display (the higher the contrast, the
easier is the human eye to distinguish the dark and light conversion
process of dynamic image).
Three, LED
display screen gray scale
The gray scale
is the brightness level that can be distinguished from the darkest to
the brightest in the full color LED display. The higher the
grayscale, the richer the color and the brighter the color. On the
contrary, the color is single and the change is simple. The
enhancement of gray scale can greatly improve the color depth, which
makes the display layers of the color of the image increase in a
geometric number. TCB small pitch LED display screen use high quality
LED lamps, with low brightness and high gray scale, the picture is
clearer and brighter, the quality of the image is more delicate.
The LED
display is composed of tens of thousands or even hundreds of
thousands of groups of red, green and blue LED lamp. With the
increase of using time, LED lamp brightness will slowly decay. LED
lamp brightness decay rate has some relevance with LED chip,
auxiliary materials, encapsulation process. In general, after light
for 1000 hours with 20 mA at room temperature, the red light
attenuation of LED lamp should be less than 7%, the attenuation of
blue and green LED lamp should be less than 10%. The consistency of
red green and blue attenuation has great influence on the white
balance of LED display and then affect the fidelity. At the same
time, the lamp failure rate of good led lamp is low, even after 72
hours aging, the failure rate is not higher than 1/10000.
The stability
and safety of LED display is particularly important when running. The
design of LED display cabinet is very important. The increase of the
temperature of component thermal conversion will lead to the
deterioration of image quality. Therefore, a good design of
ventilation and heat dissipation is an important and indispensable
index in the design of the cabinet. On one hand, it is the protection
of its circuit, on the other hand, it is safety and so on, as well as
the role of dustproof and waterproof. At the same time, should not
use the power supply only at low prices and ignore the quality and
performance. Under different temperature conditions, the stability of
the work, the output voltage and the load capacity of power supply
will be different, it undertakes after sale guarantee, so the safety
performance of it directly affects the quality of the picture.
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| G-energy Power Supply JPS300V |
After ensuring
the above five points, in order for the LED display to achieve the
best display effect, still need to ensure a good use environment. If
the actual working temperature exceeds the product's prescribed range
of application, it will not only shorten its life, but also seriously
damage the product itself. When shooting, we should pay attention to
the best shooting distance. The appropriate shooting distance is
different with different pixel pitch led display. Of course, when
selecting LED display product, users should choose a formal LED
display manufacturer to ensure the quality, price and after sale
service of the led display.
