1. What Is LED Display Module?  

2. Common Size of LED Module

LED screen modules come in various sizes to suit different display requirements. Some common sizes include:

320*160mm: This size is commonly used for outdoor LED displays, offering a good balance between resolution and visibility.

250*250mm: This size is often used for indoor LED displays, providing versatility in different installation settings such as retail stores, corporate events, and exhibitions.

192*192mm: Another common size for indoor LED displays, offering high resolution suitable for applications where detailed content is essential, such as control rooms, broadcast studios, and command centers.

60*160mm: This size is often utilized for smaller LED displays, such as those found in transportation hubs, retail stores, and digital signage installations where space is limited but high resolution is still required. It offers a compact form factor while still providing sufficient resolution for clear and engaging content display.

320*320mm: This size is typically used for large-scale outdoor LED displays, providing excellent visibility and visual impact for advertising, sports events, and outdoor concerts.

A typical LED display module comprises several key components essential for its operation:

LED Chips: These are the individual light-emitting diodes (LEDs) responsible for producing light. They come in different colors (typically red, green, and blue) and are arranged in clusters to form pixels.

PCB (Printed Circuit Board): The PCB serves as the platform for mounting the LED chips and other electronic components. It provides the necessary electrical connections and pathways for the module’s functionality.

LED Lamp Beads: LED lamp beads are the core light-emitting elements of the module. They emit light when an electric current passes through them, producing colors based on their semiconductor materials. LED lamp beads come in different sizes, shapes, and specifications, with variations in brightness, color temperature, and viewing angle. These beads are arranged in clusters on the module’s PCB to form pixels, which collectively create the visual content displayed on the LED screen.

Driver ICs (Integrated Circuits): These ICs control the operation of the LED chips, regulating the brightness and color output. They interpret the incoming data signals and drive the LEDs accordingly.

Power Supply: LED modules require a power supply unit (PSU) to convert AC power from the mains into DC power suitable for the LEDs. The power supply ensures stable and reliable operation of the display.

These components work together to enable the LED display module to function effectively, producing vibrant and dynamic visual content for various applications.

DIP LEDs (Dual In-line Package LEDs): DIP LEDs are traditional through-hole LEDs characterized by their distinctive package with two parallel rows of pins. They are relatively large and robust, making them suitable for outdoor applications where durability is essential. DIP LEDs offer good heat dissipation and are often used in outdoor LED displays due to their high brightness and visibility, especially in direct sunlight.

SMD LEDs (Surface-mount Device LEDs): SMD LEDs are smaller and more compact compared to DIP LEDs. They are surface-mounted directly onto the PCB without leads, allowing for higher pixel density and improved color consistency. SMD LEDs come in various sizes, such as 2121, 3528, and 5050, with each size offering different levels of brightness and color rendering. They are commonly used in indoor LED displays and applications requiring finer pixel pitches and higher resolution.

The main models include SMD1010, SMD2020, SMD2525, SMD2727 and SMD3535 (the name of model decided by size of lamp bead). Below LEDs pictures for your reference.

GOB LEDs (Glue-On-Board LEDs): GOB LEDs are a specialized type of SMD LED that features an additional epoxy resin layer encapsulating the LED chip. This encapsulation enhances protection against environmental factors like moisture, dust, and impact, making GOB LEDs ideal for outdoor and high-impact applications. The resin layer also improves thermal conductivity, ensuring efficient heat dissipation and prolonging LED lifespan. GOB LEDs are preferred for outdoor LED displays where ruggedness and reliability are paramount.

The Advantage of GOB LEDs is that GOB LEDs is hard to damage because of Glue protection. so some customers use GOB LED for Rental LED Display.

The Disadvantage of GOB LEDs is that GOB LED Module is hard to repair when the LED is broken, and the led module contrast is not good as the SMD LED Module.