What is the viewing angle of an LED roll-up screen?
In today's high-tech development of the times, and the emergence of LED roller shutter screen is a reflection of the current development of science and technology, it can realize the screen body up and down and left and right along any surface changes to meet a variety of irregularities in the reality of the surface needs, very suitable for shopping malls, streetscape advertisers, company meeting rooms, exhibition halls and school classrooms and other places. We are in the process of purchasing LED roller shutter screen, sometimes involves the "visual angle" of this terminology. So do you know what isLED roll-up screenof the viewing angle? The following Vise Tech editorial is for you:
In the field of LED display, "viewing angle" is one of the criteria for assessing the quality of an LED display product.
The viewing angle of the LED roll-up screen means that the user can clearly see all the contents on the screen from different directions. Viewing angle can also be understood as the maximum or minimum angle at which the screen can be seen clearly.
Although, the viewing angle is just a reference value. However, in general, there are two indicators of the viewing angle of the LED roll-up screen display screen: horizontal and vertical.
For example, the technical parameters of general LED display have this description (Viewing Angle:140°/140°); this means that the Z Viewing Angle is 140°, and the Horizontal and Vertical Z Viewing Angle is 140°. If it exceeds 140°, either the viewing angle is bad or there is a blind spot.
The horizontal viewing angle indicates the vertical normal of the LED roll-up screen (i.e., the vertical hypothetical line of the LED display). The display image can still be viewed normally at a certain angle perpendicular to the left or right side of the normal line. This angle range is the horizontal viewing angle of the LED roll-up screen. Similarly, the up and down viewing angles are referred to as vertical viewing angles when the horizontal normal is used as the reference. Generally, the viewing angle is based on the change of contrast. The greater the viewing angle, the lower the contrast of the display image seen from that position. When the angle is increased to a certain point where the contrast ratio reaches 10:1, that angle is the size viewing angle of the LED roll-up screen.
Factors affecting the viewing angle of LED roll-up screens are as follows:
1, the larger the visual angle the better, but the size of the angle is mainly determined by the core encapsulation method, so in the encapsulation of the core of the time largely determines the visual angle, this depends on the LED roller shutter screen manufacturer.
2, viewing angle and distance, but now the LED roller shutter screen manufacturers are unified, and then the production process are designed in accordance with the specified distance, the same chip, the larger the viewing angle, the lower the brightness of the LED roller shutter screen.
In summary, it is for the introduction of LED roller shutter screen visual angle. We are in the process of selecting the LED roller shutter screen generally do not have to overly consider the issue of viewing angle, if there are special circumstances, then you can choose according to the scene.
