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Technology|What are the factors affecting the viewing angle of a full-color LED display?

48 views admin 2021-03-05

We know that televisions, computer screens and LCD screens all have viewing angles, and this statement also exists in the field of LED display screens. What is the viewing angle of the LED display? What factors are the viewing angles related to? Let me introduce to you.

1. Definition of viewing angle of LED display

Viewing angle refers to the angle at which users can clearly observe all content on the screen from different directions. The viewing angle can also be understood as the maximum or minimum angle at which the screen can be seen clearly. And the viewing angle is a reference value. The viewing angle of a full-color LED display includes two indicators, horizontal and vertical.

The horizontal viewing angle is based on the vertical normal of the full-color LED display (ie the vertical imaginary line in the middle of the LED display), and it can still be seen normally at a certain angle to the left or right of the normal. For displaying images, this angle range is the horizontal viewing angle of the LED display; similarly, if the horizontal normal is taken as the standard, the vertical viewing angle is called the vertical viewing angle. Generally speaking, the viewing angle is based on the contrast change as a reference standard. When the viewing angle increases, the contrast of the displayed image at that position will decrease, and when the angle increases to a certain extent, the contrast decreases to 10:1, this angle is the maximum viewing angle of the LED display.

2. Factors affecting the viewing angle of the LED display

The larger the full-color LED display can be seen by the audience, the better, so the larger the viewing angle, the better. However, the size of the viewing angle is mainly determined by the die packaging method, so we must carefully consider when packaging the die.

The viewing angle of the LED display has a lot to do with the viewing angle and distance, but most of the current LED display manufacturers are unified. If you customize the angle according to the actual situation, the cost will be very high. It should be noted that for the same chip, the larger the viewing angle, the lower the brightness of the LED display.

 

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