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Many customers have questions about display technology, LED types, and content management options. With our extensive experience, our expert team can help you navigate the array of solutions available and select the most appropriate for your needs. Below is a list of the most common definitions and questions.

Ambient light can significantly impact the visibility of LED displays. High levels of ambient light, such as direct sunlight, can make the display appear washed out or less vibrant. To counteract this, LED displays designed for outdoor use often have higher brightness levels (measured in nits) to ensure that the content remains clear and visible even in bright conditions.

The average lifespan of an LED display is typically between 50,000 to 100,000 hours, depending on the quality of the components and how well the display is maintained. This translates to approximately 5 to 10 years of use, assuming the display is running 24/7. Factors such as environmental conditions and the intensity of usage can affect the actual lifespan.

Yes, LED displays can be used in outdoor environments. Key considerations include:

  • Weather Resistance: The display must be waterproof and resistant to dust and other environmental factors.
  • Brightness: Outdoor displays need higher brightness to remain visible under direct sunlight.
  • Durability: The display should be able to withstand extreme temperatures and physical impacts.
  • Installation: Proper mounting and ventilation are crucial to ensure long-term performance.

The optimal viewing distance for an LED display can be calculated based on the pixel pitch (the distance between the center of one pixel to the center of the next). A common formula is: Optimal Viewing Distance (in meters) = Pixel Pitch (in millimeters) x 2-3. For example, a display with a 10mm pixel pitch would have an optimal viewing distance of 20-30 meters.

Colour temperature refers to the hue of the light emitted by the display, measured in Kelvin (K). It affects the overall tone and mood of the display content:

  • Warm colours (lower Kelvin, around 2700K-3000K) give a yellowish tone.
  • Cool colours (higher Kelvin, around 5000K-6500K) give a bluish tone. Proper colour temperature settings ensure accurate colour representation and enhance viewer experience.

Pixel pitch directly impacts the resolution and clarity of an LED display. A smaller pixel pitch means the pixels are closer together, resulting in higher resolution and sharper images, especially when viewed up close. Conversely, a larger pixel pitch is suitable for displays viewed from greater distances where high resolution is less critical.

Power consumption for LED displays depends on factors like size, brightness, and usage patterns. Important considerations include:

  • Energy Efficiency: Look for displays with energy-saving features.
  • Power Supply: Ensure a reliable and adequate power supply to avoid interruptions.
  • Operational Costs: Consider long-term operational costs, including electricity bills.

LED displays are controlled through various content management systems (CMS) that allow users to upload, schedule, and manage content remotely. These systems can be cloud-based or locally hosted and offer features such as real-time content updates, playlist management, and performance monitoring.

Regular maintenance of LED displays includes:

  • Cleaning: Regularly clean the surface to remove dust and debris.
  • Inspection: Periodically check for any damaged or dead pixels.
  • Software Updates: Keep the control software and firmware up to date.
  • Component Checks: Inspect and replace any faulty components, such as power supplies or cooling fans.

LED displays can operate in extreme temperatures, but they have specified limits. Most displays are designed to function in temperatures ranging from -20°C to 50°C. It's essential to choose displays with appropriate environmental ratings and ensure proper ventilation and weatherproofing to maintain performance and longevity in harsh conditions.

Glossary definitions

The proportional relationship between the width and height of the display screen. Understanding aspect ratio is crucial for designing and displaying content effectively, as it ensures proper formatting and visual presentation.

The frame around the display or screen. Bezel size can impact the overall appearance and usability of the display, especially in multi-screen setups where thin bezels are preferred to minimize distractions and enhance the viewing experience.

A display unit mounting system, also referred to as a "hook mount" type structure. This system offers advantages in construction and mounting, particularly for traditional outdoor displays, by simplifying installation and minimizing the need for complex mounting infrastructure.

The intensity of light emitted from a display, usually measured in nits or candela per square meter. Brightness levels affect visibility and readability, especially in outdoor environments or areas with high ambient light, where higher brightness is necessary for optimal viewing.

 A mounting unit for each display unit using a standard square plate 960x960 format. While convenient, China Cabinets are often limited to mild steel construction, which may have disadvantages in terms of durability and weather resistance, particularly for outdoor installations.

A packaging technology where multiple LED chips are directly mounted onto a substrate to form a single module. COB LEDs offer advantages in terms of compactness, efficiency, and thermal management, making them suitable for various display applications.

The process of adjusting the colour of one image rendering device to match another through various methods and standards. Colour calibration ensures consistency and accuracy in colour reproduction across different displays, essential for maintaining brand identity and visual integrity.

The process of creating, organizing, scheduling, and distributing content across digital displays. Effective content management is crucial for delivering relevant and engaging content to target audiences, maximizing the impact and effectiveness of digital displays.

The ratio of the luminance of the brightest colour (white) to that of the darkest colour (black) that the system is capable of producing. A higher contrast ratio results in sharper images and better visibility, enhancing the overall quality of the display.

A packaging technology for LED display modules where individual LEDs are mounted onto a circuit board in a dual in-line configuration. DIP LEDs are commonly used in outdoor displays for their durability and brightness.

Display units are the building blocks of LED screens, consisting of multiple LEDs arranged in a grid to form a particular screen size. These units can vary in size, resolution, and configuration, catering to different indoor and outdoor display requirements. Understanding the characteristics of display units is essential for designing and implementing effective digital display solutions.

The range of brightness levels that can be displayed by a single pixel, from black to white. A wider gray scale enables more detailed and realistic images, enhancing the visual quality and depth of digital displays, especially in applications requiring high-definition content.

The interfaces through which display devices receive signal input and send signal output. Input ports allow for connections from external devices such as media players or computers, while output ports enable daisy-chaining or signal distribution to multiple displays.

An electrical device that regulates the power to an LED or a string of LEDs. LED drivers control the current and voltage supplied to LEDs, ensuring optimal performance, efficiency, and longevity. Proper selection and configuration of LED drivers are critical for maintaining stable and reliable operation of LED displays.

A semiconductor device that emits light when an electric current passes through it. LEDs are the building blocks of LED displays, offering advantages such as energy efficiency, long lifespan, and vibrant colors. Understanding the characteristics and capabilities of LEDs is essential for designing and deploying effective digital display solutions.

A structure or component installed over LED display units to control light direction and enhance visibility. Louvers help reduce glare and improve contrast by directing light towards the viewer while minimizing reflections and ambient light interference.

A self-contained unit consisting of multiple LEDs and associated electronics, typically arranged in a standardized grid pattern. LED modules are interchangeable components used to assemble LED display screens, offering flexibility and scalability in design and configuration.

Hardware components used to install and secure LED display units onto various surfaces or structures. Mounting units may include brackets, frames, or mounting rails, designed to ensure stability, alignment, and durability of the display installation.

A unit of measurement for luminance, representing the intensity of light emitted from a display surface. NITs measure the brightness level of displays, with higher NIT values indicating greater brightness and visibility, especially in outdoor or high ambient light environments.

The smallest individual element of a digital display, consisting of red, green, and blue sub-pixels that combine to produce colours and images. Pixels are arranged in a grid pattern across the display surface, with higher pixel density resulting in sharper and more detailed images.

The distance between the centres of two adjacent pixels on a display surface, measured in millimetres. Pixel pitch determines the resolution and optimal viewing distance of a display, with smaller pixel pitches resulting in higher resolution and closer viewing distances.

An electrical device that provides the necessary power and voltage to operate LED display units and associated components. Power supplies convert AC power from mains electricity into DC power suitable for powering LEDs, ensuring reliable and stable operation of the display system.

The frequency at which the display updates the image on the screen, measured in Hertz (Hz). A higher refresh rate results in smoother motion and reduced flicker, enhancing the visual quality and user experience of digital displays, especially in dynamic content applications.

Surface Mounted Device Light Emitting Diode, a type of LED packaging technology where LEDs are mounted directly onto the surface of a circuit board. SMD LEDs offer advantages in terms of compactness, energy efficiency, and uniformity, making them suitable for various display applications.

An electronic device that processes video signals and performs functions such as scaling, formatting, and enhancing video content for display. Video processors play a crucial role in optimizing video quality and performance, especially in large-scale or multi-screen display installations.

The maximum angle from which a display can be viewed without significant degradation in image quality or color accuracy. Wide viewing angles ensure consistent visibility and readability from various viewing positions, making displays suitable for diverse audience environment.

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Primary Colours works with global leaders in display and communications systems to deliver crystal-clear visual and audio signals when and where you want them. We leverage both hardware and software to create tailormade solutions and get your message across in an unmissable, cost-effective way.


Using a specifically designed lightweight aluminium backed LED, the units installed at Prison Break have exceptional heat dissipation properties, as well as excellent display brightness and visibility. This dual screen setup was installed to maximise visibility to both north and southbound traffic in the two peak traffic times at this highly visible site.