This article aims to explain the exact LED display definition, providing you with a comprehensive and detailed understanding of LED display products. Starting from the smallest unit of an LED display, it addresses what LEDs are, what constitutes an LED display, how an LED display is assembled, and the different types of LED displays available.

1. What is LED?

An LED (Light Emitting Diode) is a tiny yet mighty light source, capable of transforming electrical energy directly into light. This specialized electronic component stands out for its efficiency and versatility.

The benefits of LEDs are numerous. Their foremost advantage is energy efficiency; they consume significantly less electricity compared to traditional bulbs, leading to noticeable savings on electricity bills. Alongside cost-effectiveness, LEDs impress with their longevity. These resilient light sources can function seamlessly for years, outlasting conventional bulbs and reducing the need for frequent replacements.

Compact in size, LEDs offer remarkable adaptability. They are ideal for various applications, from the intricate circuits of small electronic gadgets to expansive billboards and cozy home lighting. This miniaturization does not compromise their safety; LEDs emit minimal heat during operation, enhancing their safety profile.

2. What is LED Display?

LED displays are like a large TV screen made up of many small light bulbs – the LEDs (Light Emitting Diodes). They can display text, pictures, or video, and are often seen on shopping mall billboards, concert stage backdrops, live sports games, or roadside traffic signs. These screens are exceptionally bright, can be seen clearly even on sunny days, and are more energy efficient and last longer than regular screens.

One of the most remarkable traits of LED displays is their adaptability. They can be tailor-made to various sizes and shapes, catering to specific needs and creative visions. This flexibility opens a realm of possibilities for bespoke installations. Furthermore, the clarity of these displays remains consistent from diverse viewing angles, ensuring your message is conveyed effectively to a wide audience.

LED displays excel in dynamic image presentation, such as videos or animations, making them an ideal choice for engaging and captivating displays in a multitude of settings.

3. What Is the LED Display Module?

An LED display module, also known as an LED panel, is a small, self-contained unit comprised of numerous LED lights arranged in a grid. Each module contains multiple rows and columns of LEDs. It typically includes LED chips, a PCB (Printed Circuit Board), driving ICs (Integrated Circuits), and other electronic components. The PCB provides a base for the LEDs and the electronic circuitry needed to control them.
LED Display Module
The modularity feature allows for the creation of large screens of various sizes and shapes by combining multiple modules. It also simplifies installation, maintenance, and repair, as individual modules can be easily replaced.
LED Display Cabinet

LED Display Module Types

LED modules come in various types, categorized based on different dimensions such as the LED type, pixel density, and their size and shape. Each classification caters to specific display requirements and applications.

1.Based on LED Type:
Common types include SMD (Surface Mounted Device) and DIP (Dual In-line Package). SMD is more prevalent in indoor and high-resolution displays due to its smaller size and wider viewing angles, while DIP is often used in outdoor displays for its brightness and durability.

COB (Chip-On-Board) Modules are LED modules with multiple LED chips are packaged directly onto the substrate of the module, offering a denser LED array for higher resolution and better heat dissipation.
GOB LED display
Notably, GOB (Glue-on-Board) modules excel with their protective adhesive coating, offering enhanced durability and resistance to environmental factors like dust and moisture. Ideal for various settings, GOB modules are robust for both indoor and outdoor use, ensuring lasting performance and resilience.

2.Based on Pixel Pitch:
Modules also differ in pixel pitch (the distance between the centers of two adjacent LEDs), affecting the resolution of the display. Smaller pixel pitches result in higher resolution. The common Indoor LED module types include P1.25, P1.5, P1.8, P1.9, P2, P2.5, P3, and P4, while outdoor types include P2.5, P3, P4, P5, P6, P8, and P10.

3.Based on Size and Shape:
They come in various sizes and shapes, though rectangular is most common. The size and shape are crucial in determining the overall size and resolution of the final display.

●The common LED module sizes are as follows:
320 x 160mm
160 x 160mm
128 x 128mm
192 x 192mm
256 x 128mm
256 x 256mm
192 x 96mm
288 x 288mm
250 x 250mm

●Various LED Module Shape

Transparent LED Modules
These modules are designed with a transparent substrate, allowing light to pass through for a see-through effect. Ideal for windows or glass facades in retail or architectural settings, where visibility through the screen is desired.
Transparent LED Display
Flexible LED Modules
Made with a flexible material, allowing the module to bend and conform to curved surfaces. Used for creative installations, like curved or wavy screens, in advertising, entertainment, and architectural designs.

4. What Is the LED Display Cabinet?

An LED display cabinet is a framework that houses multiple LED modules or panels. It provides mechanical support and protection to the electronic components of the display. The cabinet plays a vital role in maintaining the structural integrity of the display, especially for large-scale installations.

Typically constructed from materials like steel or aluminum, cabinets are designed to be durable yet lightweight. Aluminum is particularly favored for its combination of strength and lightness.

Versatility: LED display cabinets are used in a variety of settings, both indoor and outdoor, such as in sports arenas, public squares, concert venues, and for commercial advertising.

Customization: They can be customized in size and shape to fit specific installation requirements, making them suitable for diverse applications.

5. What Is the LED Display Structure?

An LED display is typically composed of a few fundamental components: the LED module, the cabinet, and the electrical box. To bring this display to life, showing vibrant pictures or videos, it needs to be connected to a controller and power supply via cables.

Additionally, for the display to be optimally presented at the correct angle and orientation for its intended environment, it requires installation using suitable brackets or mounting systems.

These elements work in unison to ensure the LED display functions efficiently and effectively, providing the desired visual impact for its specific application.

●LED Module

The fundamental unit of an LED display, comprising multiple LED pixels. Each module contains a matrix of LEDs (Red, Green, Blue) that work together to create images.

Modules can be easily combined to form a larger display surface.


A larger structure that houses multiple LED modules. Cabinets are designed to protect the electronic components from environmental factors and mechanical impacts.

Often made of durable materials like steel or aluminum, they can be designed for both indoor and outdoor use.

●Control System

This includes the hardware and software that manage the content and functionality of the display.

It typically involves a controller, control computer or processor and software for content management, scaling, and signal processing.

●Power Supply

Converts electrical power to a suitable format for the LEDs, ensuring consistent brightness and performance.

Often includes features for power regulation and protection against surges or electrical inconsistencies.

●Data Cables and Signal Processors

Responsible for transmitting image and video data to the display.

Ensures that data is correctly formatted and synchronized across the display for coherent visuals.

●Cooling System

Essential for maintaining optimal temperatures for the LEDs and electronic components.

Can include fans, heat sinks, or air conditioning systems in larger installations.

●Mounting Structure

The framework or support that holds the LED display in place, crucial for both stability and optimal viewing angles.

Ranges from simple wall mounts for indoor screens to complex steel structures, truss for large outdoor displays.

●Protective Components

Particularly for outdoor displays, elements like waterproofing, UV protection, and impact-resistant covers are used.

Includes sealing materials, protective coatings, and sometimes tempered glass or acrylic covers to shield the display from environmental factors.