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What are the Factors that Affect the Display Effect of Led Displays?

Jan. 10, 2020

Today Outdoor Sport LED Screen Supplier introduces the factors that affect the display effect of LED display.


1. Screen body flatness and screen body surface reflectance

The partial convexity or indentation of the LED display screen will cause a dead angle in the viewing angle of the display screen. The surface flatness must be within ± 1mm to ensure that the displayed image does not distort. The LED display screen uses a special process for the panel and LED light-emitting tube. Processing, while ensuring the flatness of the screen surface and reducing the reflectivity of the LED panel, can also improve the contrast of the display screen (the higher the contrast, the easier it is for human eyes to distinguish between light and dark transitions in a dynamic image).


2. LED Display Gray Level

The gray level refers to the number of brightness levels that can be distinguished from the darkest to the brightest in the single-primary brightness of a full-color LED display. The higher the gray level, the richer the color and the more brilliant the color; otherwise, the display color is single and changes. simple. Increasing the gray level can greatly increase the color depth, which makes the display level of the image color increase geometrically. The LED display uses high-quality LED lights, with a gray level of 16384, low brightness and high gray, the picture is more clear and vivid, and the picture quality is more delicate.

Outdoor Sport LED Screen

Outdoor Sport LED Screen


3. Dot Pitch

The effect of dot pitch on sharpness is very obvious. The smaller the dot pitch, the finer the screen display. The reduction of the dot pitch must be supported by mature technology. From the current trend, the reduction of the dot pitch is an inevitable choice in the market. However, relatively speaking, the smaller the dot pitch, the greater the cost of input and the higher the price.


4.Lamp quality and failure rate

LED display is composed of tens or even hundreds of thousands of groups of red, green and blue LED lamp beads. The brightness of LED lamp beads will gradually decrease as the usage time increases. The decay rate of the brightness of LED lamp beads is related to the LED chip, auxiliary materials and packaging technology. In general, after 1000 hours at 20 mA at room temperature, the attenuation of red LED beads should be less than 7%, and the attenuation of blue and green LED beads should be less than 10%. The consistency of red, green, and blue attenuation has a great impact on the white balance of the full-color LED display in the future, which in turn affects the display fidelity of the display. At the same time, good lamp beads have a low failure rate, and even after 72 hours of aging, the failure rate will not be higher than one ten thousandth.


The above are the factors that affect the display effect of LED displays introduced by Football Stadium LED Wall Supplier.

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