How are the receiver and transmitter cards for an LED display screen calculated?

Mar 30, 2026

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In-depth Analysis of the Calculation Rules for LED Display Receiver and Transmitter Cards

The configuration of receiver and transmitter cards is crucial when designing and installing LED displays. First, let's discuss the number of receiver cards, which depends on the capacity of each card and the specifications of the display screen. The capacity of each receiver card varies depending on the design, determining the length and width of the LED display it can support.

Taking a P10 LED display as an example, its required length is 20 meters and its height is 10 meters. We can determine the required number of receiver cards by calculating the number of modules. A single unit panel of the P10 display is 32cm x 16cm, requiring 62.5 modules in both length and width. When calculating the resolution, the P10 indoor unit panel has a pixel count of 32x16, resulting in an actual display resolution of 2016x1008 pixels. To ensure stable operation, we typically round up, meaning 8 receiver cards are needed in the length direction and 8 in the width direction, plus one spare card, for a total of 65 receiver cards.

The number of sending cards is based on the actual pixel density of the display screen. For a P10 display screen, two cards are needed in the long direction and one in the wide direction, for a total of two sending cards. Outdoor LED displays are different, usually based on the number of cabinets, which can be one card per cabinet or one card per two cabinets. Assuming a length of 21 cabinets and a width of 13 cabinets, the actual resolutions are 2016 pixels and 1248 pixels respectively, so the number of receiving cards needs to be calculated, approximately 138, with one card reserved as a spare.

In general, the calculation of receiving cards for indoor displays is usually based on resolution, while for outdoor displays it is based on the number of cabinets. Sending cards, regardless of indoor or outdoor location, are calculated based on the pixel density of the display screen. While these calculation methods are practical, they may vary depending on specific project requirements. If you encounter any questions during actual operation, please feel free to communicate and correct them.

The precise configuration of LED displays ensures excellent visual presentation. Understanding and accurately calculating the number of receiving and sending cards is crucial for ensuring the stable operation and optimal performance of the display screen. We hope this information will help you make informed decisions during project implementation.

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