What does Scan of the LED screen mean?

In the full-color, single-color, two-color series products of LED electronic display, the scanning methods are 1/16, 1/8, 1/4, 1/2, static and so on. What if there is a difference? A simplest method is to count the number of LEDs on the LED large screen unit board and the number of 74HC595.
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Calculation method: divide the number of leds by the number of 74HC595 and then divide by 8 = fractional scan
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The real pixel LED electronic screen corresponds to the virtual LED electronic display screen: in short, the real pixel screen means that each of the three light-emitting tubes of red, green and blue that constitute the LED display only participates in one pixel at the end. imaging application to achieve satisfactory brightness.

 

The virtual pixel uses a software algorithm to control the end of each color light-emitting tube to participate in the imaging of multiple adjacent pixels, so that a larger resolution can be achieved with fewer light tubes, which can increase the display resolution by four times.
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In the full-color LED display series products, there are 16 scans, 8 scans, 4 scans, etc., and there are differences between them as follows:
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1. The scanning method of the LED screen is different;
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2. The brightness of the LED screen is different (16s is less than 8s and less than 4s)
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3. The quotations are different, which may be understood as the number of driver IC chips used (the same type of 16s is lower than 8s and lower than 4s)
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The LED display screens on the current market can be roughly divided into two methods: static scanning and dynamic scanning! Static scanning is divided into static real pixels and static virtual! Dynamic scanning is also divided into dynamic real image and dynamic virtual, with 2 scans, 4 scans, 8 scans, and 16 scans.
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To illustrate: an outdoor PH16 full-color LED display commonly used full-color module pixel is 16*8 (2R1G1B), if it is driven by MBI5026, the module uses:
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16*8*(2+1+1)=512 lamps, MBI5026 is a 16-bit chip, 512/16=32
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(1) If 32 MBI5026 chips are used, it is a static virtual
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(2) If 16 MBI5026 chips are used, it is a dynamic 1/2 scan virtual
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(3) If 8 MBI5026 chips are used, it is a dynamic 1/4 scan virtual
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If two red lights are connected in series on the full-color LED display unit board
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(4) Using 24 MBI5026 chips, it is a static real pixel
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(5) With 12 MBI5026 chips, it is a dynamic 1/2 scan real pixel
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(6) Using 6 MBI5026 chips, it is a dynamic 1/4 scan real pixel