1 , watermelon skin LED spherical display :
It consists of a watermelon-like PCB . The advantage is that the structure is intuitive and the type of PCB is small. The disadvantage is that the north and south poles ( that is, north of 45° north latitude and south of 45° south latitude ) cannot play images normally, so the screen utilization rate is too low or the image is severely deformed. The reason is that all the pixel points of the current image source are arranged in rows, and the pixel points of the north and south poles of the watermelon ball LED screen are not arranged in rows, but in a circle, so Difficult to display.
2 , triangular LED spherical display :
The spherical screen composed of a flat triangular PCB , commonly known as a soccer screen, overcomes the shortcomings of the north and south poles of the watermelon screen, so the screen utilization is greatly improved. The disadvantage is that there are many types of PCBs , and the pixel points are limited by the honeycomb arrangement, and the dot pitch cannot be too small, and the software writing is also troublesome.
3 , six-sided LED spherical display :
The LED spherical screen composed of a quadrilateral PCB is called a six-sided LED spherical screen. The advantage is that it is closer to the flat LED display . The minimum point spacing is similar to that of the flat LED display . The limit is not limited or almost unlimited, so the effect is much better than the ball screen composed of triangular PCB .
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