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The importance of LED beads on LED display screen││Abxled

In recent years, LED display screens has played a vital role in our daily life and have been widely used in many areas. LED technology is one of the most important technology in LED lighting industry. People always put quality and performance in the first place. LED bead is an important factor to affect the life span of an LED display screen. Why LED bead is so important to a LED display screen? The answers are as below:

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The perspective of LED beads determines the perspective of LED transparent LED display screens. 

Generally, the outdoor display screens choose mostly elliptical the LED with 100 degrees horizontally, 50 degrees vertically, while the indoor display screens choose the SMD LED with 120 degrees horizontally and vertically. Due to its particular, display screens on the highway generally choose the circular LED with 30-degree angle of view. 

In general, screens installed on taller buildings need a higher vertical view. The confirmation of perspective needs to be considered according to the actual situation and the specific purpose. The wide angle inevitable reduces brightness since the angle of view and brightness are contradictory to each other.


LED brightness determines the screen brightness. LED screen is energy-saving and environmentally friendly, which helps save power and maintain LED stability. Generally, the higher the LED brightness is, the larger power it will consume. 

LED screens comes with angle values for different purpose. After the brightness is set, the smaller the angle, the brighter the LED, but the smaller the view angle of the display screen. For example, a 100-degree LED should be equipped with a bigger angle of the display screen. 
To sum up, LED screens come with different spacing and line-of-sight, should keep a balance between brightness, angle and price. 

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Failure rate

As the LED screen is made up of tens of thousands or even hundreds of thousands of pixels. Those pixels are composed of red, green and blue LEDs. If any failure of any color LED appears, it will result in the failure of the overall visual effect of the display screen. 

In general, the failure rate of the whole manufacturing process including assembly, inspection, aging should be controlled with 0.03%. Especially for LED beads, the inspection is really strict to avoid failure. 

Antistatic capacity

Since LED is a semiconductor device, which is sensitive to static electricity, and easy to cause electrostatic failure. the anti-static ability is vital to the life span of the screen. In general, the LED's human static mode test failure voltage should not be lower than 2000V.