What are the basic definitions and operating principles of LED displays

　　LED display, short for Light Emitting Diode display, is a self-luminous flat visual device assembled by RGB diode modules.Different from LCD screens with backlight layers, every pixel of LED screen contains independent red, green and blue lamp beads. The control system transmits video signals to drive each diode to adjust brightness, and mixes three primary colors to generate more than 16 million rich colors, presenting smooth and vivid pictures.

　　The core structure of LED displays includes LED modules, aluminum cabinets, drive ICs, sending cards, power supplies and cooling systemsAEANET. It adopts fully modular splicing design. Standard cabinets can be freely combined into screens of any size from small store signage to stadium giant walls. Single module failure will not affect the whole screen operation, which greatly reduces the difficulty of after-sales maintenance.

　　LED screens are classified into indoor and outdoor models according to usage environment. Indoor screens have low brightness and fine pixel pitch for close viewing; outdoor products reach ultra-high brightness above 5500 nits, with IP65 waterproof and dustproof protection to adapt to wind, rain and strong sunlight. With a service life of over 100,000 hours, LED technology has replaced traditional billboards and projection equipment, becoming the mainstream digital signage carrier worldwide.