When the brightness of the viewing direction is reduced to half of the brightness of the normal direction of the LED display, the angle formed by the two viewing directions of the same plane in the normal direction can only be measured by professional instruments. The viewing angle of an LED display is also called half power. The visual angle of a full-color LED display refers to the angle at which the user can clearly see all content on the screen from different directions. The visual angle can also be understood as being able to see the largest or smallest angle of the screen. The point of view is a reference value, and the LED full-color display includes two indicators, horizontal and vertical. For example, a full-color LED display usually has such a description in the technical parameters (visual angle: 140/140 degree ), the maximum visual angle is 140 degree , the maximum visual angle is horizontal and vertical, and the visual angle exceeds 140 degrees. , The visual effect will be worse, and there will be blind spots.
Full color LED display manufacturers
Factors affecting the visual angle of a full-color LED display.
The larger the large full-color LED display, the better the view of the auditorium, and therefore the greater the viewing angle. However, the size of the visual angle mainly depends on the core tube packaging method, so we must carefully consider when packaging the core tube. In addition, the visual angle has a great relationship with the visual angle and distance, but now many full-color LED display manufacturers have a unified angle. If the angle is customized according to the actual situation, the cost will become higher. For another type of chip, the greater the angle, the lower the brightness of the LED full-color display.
The horizontal viewing angle represents the vertical viewing angle of the full-color LED display (that is, the vertical viewing angle at the center of the full-color LED display), that is, the horizontal viewing angle of the full-color LED display. The display can still be seen normally in the left and right directions of the vertical viewing angle or at a certain angle Image; just like the horizontal angle of view, the horizontal angle of view is also called the angle of view. Generally speaking, the change in contrast is used as a reference standard for the viewing angle. When the viewing angle of the full-color LED display increases, the image contrast decreases, and when the angle increases to a certain extent, the contrast drops to 10:1, this contrast is the maximum.
