We know that televisions, computer screens and LCD screens all have viewing angles, and this statement also exists in the field of LED screens. What is the viewing angle of a full-color LED display? What factors does the viewing angle have to do with? With this question, let’s learn together:
1.Definition of viewing angle of full-color LED display
The viewing angle of a full-color LED display 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 the LED full-color display includes two indicators, horizontal and vertical.
For example, usually full-color LED display, the technical parameters have this description: Viewing angle: 140°/140°; refers to the maximum viewing angle of 140°, the maximum horizontal and vertical viewing angle is 140°, after more than 140 degrees , The viewing effect is poor or there are blind spots.
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 full-color 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 seen at this 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 full-color LED display.
2.Factors affecting the viewing angle of a full-color LED display
The larger the full-color LED screen 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.
In addition, the viewing angle has a lot to do with the viewing angle and distance. At present, most LED display manufacturers have the same angle. If you customize the angle according to the actual situation, the cost will be very high. In addition, with the same chip, the greater the angle, the lower the brightness of the full-color LED screen.