Explanation: A commonly used full-color module has a pixel size of 16*8 (2R1G1B). If it is driven by MBI5026, the total number of modules used is:

　　16*8*(2+1+1)=512, MBI5026 is a 16-bit chip, 512/16=32(1) If 32 MBI5026 chips are used, it is static virtual

　　 (2) If 16 MBI5026 chips are used, it is dynamic 1/2 scan virtual (3) If 8 MBI5026 chips are used, it is dynamic 1/4 scan virtual if two red lights on the board are connected in series

　　(4) 24 MBI5026 chips are used, which are static real pixels

　　(5) Use 12 MBI5026 chips, which are dynamic 1/2 scan pixels

　　(6) 6 MBI5026 chips are used, which is a dynamic 1/4 scanning real pixel

　　On the LED unit board, the scanning methods are 1/16, 1/8, 1/4, 1/2, static. How to distinguish? One of the easiest ways is to count the number of LEDs on the unit board and the number of 74HC595.

Calculation method: the number of LEDs divided by the number of 74HC595 and then divided by 8 = a fraction of scanning real pixels correspond to virtual: in simple terms, the real pixel screen refers to the red, green and blue lights that make up the LED display Each type of light-emitting tube in the tube finally only participates in the imaging use of one pixel to obtain sufficient brightness.

　　Virtual pixel is the use of software algorithms to control the light-emitting tube of each color to finally participate in the imaging of multiple adjacent pixels, so that a larger resolution can be achieved with fewer tubes, and the display resolution can be increased by four times.

　　Look at the number of ICs in a single module. The static drive IC controls 16 points. If a single module has 32*16 points and there are only 8 ICs, then 32*16/16/8=4, that is, 1/4 scan.

　　LED display scanning method classification:

　　 Scan mode: In a certain display area, the ratio of the number of lines that are lit at the same time to the number of lines in the entire area.

　　1, static scan:

Static scanning is a "point-to-point" control from the output of the driver IC to the pixel points. Static scanning does not require a control circuit, and the cost is higher than dynamic scanning, but the display effect is good, the stability is good, and the brightness loss is small, etc. advantage.

2. Dynamic scanning: Dynamic scanning implements "point-to-column" control from the output of the driver IC to the pixel points. Dynamic scanning requires a control circuit, and the cost is lower than static scanning, but the display effect is poor, and the brightness of the LED display is lower. Product and solution service providers suffered greater losses.

　　 2. Distinguish by environment:

　　Indoor single and dual color is generally 1/16 scan, indoor full color is generally 1/8 scan, outdoor single and dual color is generally 1/4 scan, outdoor full color is generally static scan.

　　 3. Distinguish by model:

　　1. Scanning method of indoor full-color LED display: P4 and P5 are constant current 1/16, P6 and P7.62 are constant current 1/8.

　　2. Scanning method of outdoor full-color LED display: P10, P12 are constant current 1/2, 1/4, P16, P20, P25 are static.

　　3. The scanning methods of single and double color LED display are mainly constant current 1/4, constant current 1/8 scan, and constant current 1/16 scan.

　　 Four, LED display scanning mode

　　1/4 scan: Under the same other conditions, the 1/4 scan display has only half the brightness of the 1/2 scan display, which is suitable for semi-outdoors and indoors. Its control method is increased from 1/2 of two LEDs to 4 LEDs. The current is scanned among the 4 LEDs.