The principle of virtual pixel display The virtual pixel LED display screen uses a software algorithm to control and control the light-emitting tube, and the light-emitting tube participates in the imaging of a plurality of adjacent pixels. The virtual screen realizes a larger resolution with fewer lamps, and can make the LED display screen The pixel resolution is increased by 4 times. Virtual pixel display definition The red, green and blue display components of each point in the display unit are evenly distributed to match the color mixing effect of the pixels; the color of the virtual display points is composed of adjacent red, green and blue pixel mixed colors. The points of the virtual pixels are scattered, and the points of the real pixels are condensed. The light-emitting point of the virtual pixel is between the tubes, and the light-emitting point of the real pixel is on the tube. Virtual pixel implementation method Figure 1 Virtual pixel implementation principle SHENZHEN YINZHIGUAN DIGITAL TECHNOLOGY CO.,LTD , http://www.yzgmusiccrown.com
According to 2 red 1 green 1 blue design module, then the conversion relationship between real point and virtual point is: m=2m-1, m is virtual point, n is real point. For example, when m=3, the real pixel is a 3×5 dot matrix, and the virtual pixel is a 5×9 dot matrix. From this we can get, if n is the number of row LED tubes, m is the number of column LED tubes, then the pixel points displayed by real pixels are m×n, and the pixels displayed by virtual pixels are (2n-1)×(2m -1), so that when m and n are sufficiently large, it is approximately equal to 2n × 2m, that is, 4m × n, so it is 4 times that of real pixels.
Figure 2 Module of the virtual pixel display
The module in Figure 2 is analyzed. Take the green light as an example. There are 16 lights in the row and 8 lights are listed. Therefore, the pixel is actually 16×8. Because of the virtual pixel technology, the actual number of pixels is (16 × 2) × (8 × 2), which is increased by 4 times.