The LED display module is a crucial component of a finished LED
display. It comprises LED lights, PCB circuit boards, driver ICs,
resistors, capacitors and plastic kits. The modules can be
categorized according to the luminous color of the LEDs. They
are available in monochrome, two-color, and full-color modules.
Monochrome modules come in single colors such as red, green,
blue, yellow, and white, while two-color modules consist of
combinations like red and green, and red and blue. Full-color
modules primarily incorporate the three primary colors -red,
green, and blue- on the LED module.
Table of Contents
What are the main categories of LED display modules?
1.Indoor LED Display Modules: Designed for indoor environments, these LED display modules have high refresh rates and grayscale levels to achieve clear and detailed image display. Common pixel pitches for indoor LED display modules include P1.25mm, P1.86mm, P2.5mm, etc.
2.Outdoor LED Display Modules: Specifically designed for outdoor applications, outdoor LED display modules feature high brightness and waterproof ratings, ensuring clear visibility in bright outdoor environments. Common pixel pitches for outdoor LED display modules include P3.91mm, P4mm, P5mm, etc.
3.Flexible LED Display Modules: These LED display modules have a flexible design, allowing for bending and customization of shapes as required. They are suitable for special scenes and creative applications such as curved screens, cylindrical screens, etc.
4.GOB LED Modules: GOB (Glue on Board) LED modules utilize special encapsulation technology, providing high shock resistance and waterproof performance. They are suitable for locations that require high resistance to shock and water.
The structure and components of LED display module
1.LED chips (Light-Emitting Diode): LED lamp beads are vital for
LED displays as they emit visible light through semiconductor materials.
There are various models available with different resolutions and clarity
levels, including SMD1010, SMD2020, SMD2525, SMD2727, and
SMD3535. Performance characteristics like brightness, viewing angle,
failure rate, lifespan, and consistency determine the screen’s visual
quality. Ultimately, LED lamp beads are essential for high-quality,
vibrant images and videos on LED displays.
2.Printed Circuit Board (PCB): A PCB is a crucial component of LED
display modules, providing electrical connections and support for other
elements. It contains circuit traces, mounting positions, and solder
joints to ensure correct operation and interconnectivity of electronic
parts, including power supply, signal transfer, and control. Components
like LED lamp beads and IC drivers are soldered onto the PCB to
create an integrated assembly. PCB design is significant in optimizing
efficiency, performance, and manufacturability, reducing electrical
noise, enhancing signal integrity, and enabling efficient heat
dissipation. Ultimately, the PCB plays a vital role in promoting proper
functionality and integration of electronic components in LED display
3.Integrated Circuit Driver (IC Driver):The IC driver is an essential
component in LED display modules that accurately regulates the
brightness, color, and display effects of LED lamp beads. It also
manages power, data transmission, and signal conversion for optimal
performance. It converts electrical signals from the control system into
the current and voltage levels necessary for the LED lamp beads,
enabling precise control over color and intensity. The IC driver
minimizes power consumption and ensures smooth transitions and
accurate rendering of images and video on the LED display module. Its
management and control functions are vital for efficient operations,
optimal performance, and precise display output.
4.Protective Layer and Related Components:A protective layer
guards printed circuit boards and cabinet chassis against damage like
moisture, dust, and mechanical impact. The layer, often made of
durable plastic or metal, secures the module structure. Rainproof
modules use rubber gaskets for waterproof sealing, while LED display
modules use flat cables for signal transmission and power cords for
power supply. Rubber rings improve waterproofing and the black
plastic mask provides precise positioning for LED pixels. Sun visor-
type brackets can also reduce light reflection for outdoor screens.
These components work together to protect, waterproof, transmit
signals, supply power, and install LED pixels, ensuring high-quality
display performance and reliable operation.
LED display module: What are the performance parameters?
What is pixel pitch? How does it affect the display quality?
Pixel pitch refers to the distance between the centers of adjacent pixels. It determines the display’s resolution and its ability to render
details. Smaller pixel pitch results in higher resolution and a clearer display.
What does brightness refer to in LED display modules?
Brightness is measured in nits or candelas per square meter (cd/m²) and represents the intensity of light emitted by LED pixels. Higher
brightness levels provide better visibility in bright environments or outdoor settings.
What is refresh rate, and what is its impact on the display performance?
Refresh rate indicates how quickly the display can refresh the content on the screen. It is measured in Hertz (Hz) and affects the
smoothness of animations and video playback. Higher refresh rates offer a more seamless visual experience.
What does viewing angle refer to in LED display modules?
Viewing angle refers to the maximum angle from which the screen can be viewed without significant degradation in image quality or color
accuracy. Wide viewing angles ensure that content can be seen clearly from different positions.
What is contrast ratio, and what are the benefits of a high contrast ratio?
Contrast ratio defines the difference between the brightest and darkest parts of an image. Higher contrast ratios enhance the display’s
ability to reproduce vibrant colors and deep blacks, resulting in visually appealing content.
What does color gamut mean in LED display modules?
Color gamut represents the range of colors that a display can reproduce. It is typically expressed as a percentage of the NTSC or sRGB
color space. A wider color gamut enables more accurate and vibrant color reproduction.
What does grayscale level represent in LED display modules?
Grayscale levels indicate the number of different shades of gray that a display module can show. Higher grayscale levels enable smoother
gradients and better color transitions, resulting in more realistic images and videos.
What role does power consumption play in LED display modules?
Power consumption refers to the amount of electrical power required to operate an LED display module. Lower power consumption
contributes to improved energy efficiency and cost savings.
Installation and Connection Methods for LED Display Modules
LED modules are versatile and can be installed in different ways depending on the needs. Magnetic installation is great for temporary installations and
magnetic surfaces while screw fixation provides a long-term stable solution. We offer a guide to make the installation process easy and efficient.
Please follow these steps for proper installation of your LED module. First, select an appropriate mounting base according to your installation
requirements. Then, securely fix the mounting base to the installation position using professional tools, such as a screwdriver or drill.
Next, insert the power cables into the power interface of the mounting base, ensuring a tight connection. Connect the
power cables to the power source ensuring correct wiring.
Install the LED module in the predetermined position on the mounting base, ensuring a tight connection with the base. Use a screwdriver or
drill to firmly secure the LED module to the base.
Finally, after installing the LED module, it is important to secure it to ensure stability. Use a screwdriver or drill to secure the LED module to the
mounting base. Alternatively, you can use adhesive or other fixing agents to secure it to the installation position.