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What is the viewing angle of LED screen?

Apr 17, 2020



The viewing angle refers to the angle at which the user clearly sees everything on the screen from different directions. The viewing angle can also be understood as the maximum or minimum angle at which we can see the screen. And the viewing angle is a reference value, the viewing angle of the full-color LED display includes two aspects, horizontal and vertical.


The horizontal viewing angle should be based on the vertical normal of the display (that is the vertical imaginary line in the middle of the display), and the display image can still be seen normally at a certain angle to the left or right of the normal. The angle range is the horizontal viewing angle of the LED display; similarly, if the horizontal normal is used as the standard, the  viewing angle above or below is called the vertical viewing angle. Generally speaking, the viewing angle is based on the contrast change. When the viewing angle is increased, the contrast of the LED display will decrease, and when the angle is increased to a certain degree, and the contrast drops to 10: 1, this angle is the maximum viewing angle of the LED full color screen.


For example, the technical parameters of LED full-color advertising screens are marked as follows: horizontal viewing angle 120 ° and vertical viewing angle 120 °, that means the maximum horizontal viewing angle of full-color LED display is 120 ° and the maximum vertical viewing angle is 120 °.


What factors are related to the viewing angle of the full-color LED display? 


The viewing angle is mainly determined by the LED chip encapsulation method, so it must be carefully considered when packaging the LED chip. In addition, the viewing angle of LED screen has a great relationship with your viewing angle and distance, but at present, most LED display manufacturers have a unified angle. If you customize the angle on site, the cost will be high . In addition, the same chip, the greater the viewing angle, the lower the brightness of the LED display.