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        CN
        4News

        several cases of full-color LED electronic display drive scanning


        According to statistics, in the full-color LED display screen series, the scanning method is 1/16, 1/8, 1/4, 1/2, static. How to distinguish between different LED full color display scanning methods? One of the simplest methods is to count the number of LEDs on the LED electronic display panel and the number of 74HC595. Of course, it is also necessary to analyze the scanning characteristics of the corresponding LED driver.

        Calculation method: the number of LEDs divided by the number of 74HC595 and divided by 8 = a fraction of a scan

            The real pixel LED display screen corresponds to the virtual LED electronic display screen: in short, the real pixel screen refers to the red, green and blue light-emitting tubes constituting the display screen. Imaging is used to achieve a satisfactory brightness.

            The virtual pixel is a software algorithm that manipulates the end of the light tube of each color to participate in the imaging edge of a plurality of adjacent pixels, and then enables a larger resolution with fewer lamps to make the resolution of the display four times.

            In the full-color LED display screen series, there are 16 sweeps, 8 sweeps, 4 sweeps, etc., and there are differences between them:

            First, the scanning method of the LED display screen operation is different;

            Second, the brightness of the LED electronic display screen is different (16s is less than 8s less than 4s);

            Third, the quotation is not the same, perhaps understood as the number of driver IC chips used is different (the same type 16s is lower than 8s less than 4s)

            The current LED display screens on the 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. There are 2 sweeps, 4 sweeps, 8 sweeps, and 16 sweeps.

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