The LED spherical screen has only appeared in recent years, and its main purpose is to be able to view the content of the screen in a 360-degree all-round way, and to display the viewing in a full range, thereby bringing a new visual experience. LED spherical screen principle? What are the characteristics and what are the related products on the market now?
First, the basic principle of LED spherical screen:
It is composed of kernel control module, rotating display module, wireless module, font module, motor drive module and power supply. The fan blade is designed as a circle, and there is a circle of LED light beads on the fan blade. The luminous color of the LED is monochrome or multi-color. When the fan blade rotates around the central axis, a sphere will be generated, and all of the spheres are LED.
Two, LED spherical screen features:
1, due to aesthetic fatigue and the need for innovative personalized display, rotating LED spherical screen is just an unconventional gathering popularity of products. All the drawbacks of using a flat video source to play on a three-dimensional sphere will be tolerated, just as distorted photographs taken with a wide-angle or fisheye camera are accepted.
2, the resolution design of the LED spherical screen is the same as that of the ordinary LED display, that is, related to the viewing distance of the LED screen, generally if it is 2.5 meters away from the viewing, it is recommended to choose P2.5 or P2 model, 6 meters away from the viewing, it is recommended to choose P6 or P5, of course, the budget is sufficient, you can also choose higher definition P4 or even P3. If it is used for outdoor viewing 10 meters away, you can choose the P10 model, of course, this is a more vague choice, is qualitative rather than quantitative, depending on the specific site installation environment, audience and budget impact. As early as 2016, Lianchengfa has withdrawn from the stadium LED display series products, models including P3 P4 P6 and so on.
Three, LED spherical screen types
1. Watermelon peel LED spherical display:
Composed of watermelon rind PCB, the advantage is that the structure is intuitive, and the types of PCB are less. The disadvantage is that the north and south poles (that is, north latitude 45° north, south latitude 45° south) can not play images normally, so the picture utilization rate is too low or the image is seriously deformed. The reason is that all the pixels of the current image source are arranged in rows and columns, and the pixels of the north and south poles of the watermelon shell LED spherical screen are not arranged in rows and columns, but are arranged in circles, so it is difficult to display.
2, triangular LED spherical display:
The spherical screen composed of flat triangular PCB, commonly known as the football screen, overcomes the shortcoming that the north and south poles of the watermelon skin spherical screen can not play images, so the utilization rate of the picture is greatly improved. The disadvantage is that there are many types of PCB, and the point spacing can not be too small due to the limitation of the honeycomb arrangement of pixels, and the software writing is also more troublesome.
3. Six-sided LED spherical display:
The LED spherical screen composed of quadrilateral PCB is called a six-sided LED spherical screen.