LED display modules are the fundamental building blocks of any LED display system, consisting of integrated LED chips, driver circuits, and structural frames. These modules come in various pixel pitches (from P0.9 to P20), catering to different viewing distances and resolution requirements. Indoor modules prioritize fine pitches and color accuracy, using SMD 1010/2121 LEDs, while outdoor modules feature rugged SMD 3535/5050 LEDs with IP65 waterproofing. Standard module sizes (e.g., 320x160mm, 192x192mm) enable flexible scaling into custom display sizes and aspect ratios. Key technical specifications include luminance uniformity (≤3%), color temperature consistency (±100K), and pixel reliability (<0.001% failure rate). Advanced modules incorporate self-diagnostic functions, thermal management systems, and high refresh rate drivers (1920Hz+), ensuring stable performance and easy integration into larger display systems.