Virtual LED display is also called Virtual pixel LED display which is a kind of visual effects for four times of physical resolution in theory. While in reality, virtual resolution is 1.5 to 2 times of physical definition.
Let’s take 2R1G1B virtual pixel LED display as an example, each red LED lamp is used four times to be combined with other lamps as a pixel. Virtual pixel technology is mainly used for outdoor series, like P25mm, P20mm and P16mm 2R1G1B virtual outdoor LED display.
Virtual pixel technology is mainly used for full color LED video display, to enhance the sharpness and show better image or video. It is realized by making each LED be shared by the 4 contiguous pixels at the same time (please see below drawing), instead of being shared by 1 pixel only in real pixel LED display. With the virtual pixel technology, we can use the same number of pixels to display sharper image or video than on the same size and pixel pitch real pixel led displays. Theoretically to show the same sharpness video with real pixel LED display, we need only 1/4 area of the corresponding virtual pixel LED display. In another word, on the same size LED display, the sharpness with the virtual pixel technology is 4 times as good as with real pixel technology. But it’s concluded from our actual experience, the sharpness of virtual pixel LED display is 1.5-2 times as good as of real pixel LED display.
The difference from virtual pixel LED display to real pixel LED display:
1. Physical Arrangement:
Generally speaking, in real pixel LED display, each pixel consists of 1 red, 1 green and 1 blue LEDs. Although all the pixels are placed in average distance, not all the LEDs are placed in average distance. It is evident to tell one pixel from another pixel.
In virtual pixel LED display, each pixel consists of 2 red, 1 green, and 1 blue LEDs. All the LEDs are placed in average distance. Each LED is shared by the contiguous 4 pixels. So there’s an easy way to distinguish virtual pixel LED display by the physical appearance is to see if the pixel consists of 4 LEDs (2R1G1B), and if all the LEDs are placed in average distance.
2. Resolution Effect:
In real pixel LED display, each LED is shared by 1 pixel only. But in virtual pixel LED display, each LED is shared by 4 pixels at the same time, with the image process technology combined, the resolution of virtual pixel LED display is theoretically improved 4 times as high as of real pixel led display. But when showing the texts, the LED can’t be shared by 4 pixels at the same time, the sharpness turns back to the same with on real pixel LED display.