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What is the difference between low brightness and high brightness of LED transparent screen?
2022-10-17


Brightness is an important technical indicator in the display industry. The same is true for LED transparent screens. Is there a big difference between low brightness and high brightness of LED transparent screen?


First, let's understand what is the brightness of LED transparent screen:

Luminous brightness of LED transparent screen is an inductive index, which refers to the sum of luminous intensity (luminous flux) of all LED modules in unit volume and the illuminance at a certain distance. Luminance of LED transparent screen: in a given direction, the unit of luminous intensity brightness per unit area is cd/m2


The brightness is proportional to the number of LED beads per unit area and the brightness of LED itself. The brightness of LED is proportional to its driving current, but its life is inversely proportional to the square of its current. Therefore, it is not allowed to drive the current too much in order to pursue brightness. Under strong current, the stability of LED lamp beads will decrease and decay faster. The pure pursuit of high brightness is at the expense of the image quality and life of the transparent screen.



The LED transparent screen can be divided into low brightness and high brightness in daily use scenarios. The low brightness is 500~1500cd/m2, and the high brightness is 4000~5500cd/m2. LED transparent screen with which brightness is used is mainly different from the environmental factors on site. For example, common indoor lighting environment and outdoor brightness requirements should be used to reasonably select LED transparent screen products.


The brightness range of indoor LED transparent screen is recommended to be 800-1200cd/㎡, which should not be exceeded. Too bright will affect the viewing effect, which will be dazzling and uncomfortable. Besides, the brightness is high, and the power is also large, which is relatively expensive. If the LED transparent screen of glass curtain wall faces the direct sunlight, the brightness range is about 5000-6000cd/㎡, and there is no direct sunlight in the semi outdoor direction, it is perfectly satisfied according to the environment of 3000-4500cd/㎡.


Therefore, when choosing the brightness of LED transparent screen, it is not that the higher the brightness is, the better it will be, and it will be uncomfortable to see it for a long time. Similarly, in places with strong light, low brightness LED transparent screen will not be able to see clearly, reflect light and other adverse factors. Moreover, the price of highlighted products is higher, and the pure pursuit of highlights leads to excess performance. The above is the difference between low brightness and high brightness of LED transparent screen





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