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What does P4 mean in LED display screen?

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In the LED display screen, P represents the distance between lamp beads, that is, the distance between two lamp beads. The unit is mm. 

For example, P4 means that the center distance of adjacent lamp beads is 4mm. The density is 62500 points/square meter. The spacing and density of lamp beads. The smaller the number after P, the smaller the spacing and density of lamp beads.

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LED P4 is a display screen where the distance between pixels is 4mm (the center distance of adjacent pixels). In the industry, a letter "P" is added in front of the display model. The following number indicates the center distance of adjacent pixels, and the unit is expressed in "mm". The P4 LED display can be installed in three environments: indoor, semi-outdoor, and outdoor. It can be made into single-color, two-color, or full-color displays; the smaller the spacing, the shorter the viewing distance.

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