Image: AI-generated illustrative concept, not an actual project photograph.
LED wall aspect ratio describes the relationship between the active image width and height. Content resolution describes the number of pixels in the artwork or source image. To make a presentation or advertisement fit properly, designers need the display’s actual pixel canvas and an agreed method for handling content with a different shape. Physical screen area alone does not provide that information.
This guide from Mustang Communications explains the distinction using simple examples for buyers and content teams in Pakistan. It applies to planning a Leyard installation or another identified LED wall, while the exact export and controller settings must come from the selected system. The examples below are illustrative geometry, not product specifications, price quotations or promises that every processor supports every layout.
Separate physical dimensions, pitch and resolution
Physical dimensions tell you how much space the screen occupies. Pixel pitch describes spacing in the display’s pixel grid. Native resolution tells you how many image pixels the installed arrangement contains horizontally and vertically. These are related, but they answer different questions. A designer needs the final active pixel dimensions, while the building team also needs cabinet dimensions, support requirements and service access information.
For an illustrative screen exactly three metres wide and two metres high with a two-millimetre pixel grid, dividing width and height in millimetres by pitch gives 1,500 by 1,000 pixels. Real installations must fit the chosen module and cabinet arrangement, so a supplier must confirm the actual dimensions and resolution. Do not order artwork or equipment solely from this simplified calculation without checking the model-specific layout.
Calculate aspect ratio from the active canvas
An image that is 1,920 pixels wide and 1,080 pixels high has a 16:9 aspect ratio. Dividing both numbers by 120 gives that simplified relationship. A hypothetical 1,500 by 1,000 canvas simplifies to 3:2. Both are landscape shapes, but they are not identical. Sending a standard widescreen video to the second canvas requires a deliberate fit policy if the original proportions are to be preserved.
Use active image dimensions rather than the outside size of a frame or decorative surround. For an ordinary uniform pixel grid, the pixel-canvas shape describes the usable image shape. If a creative installation contains gaps, corners or separate surfaces, ask for a content map showing how the controller treats them. A single bounding rectangle may not explain where important information can actually appear or how viewers see it.
Understand the three common fit decisions
The first option is to fit the whole source inside the display while preserving its proportions. This may leave unused bands. The second is to fill the display while preserving proportions, which may crop part of the source. The third is to stretch width and height independently, which changes proportions. Each produces a different visible result, and the content owner should understand the choice before approving the final artwork or processor arrangement.
Terms used in software can vary, so ask the operator to demonstrate what a setting actually does rather than relying only on its label. A company logo, a person’s face or a circular graphic makes distortion easy to notice. A presentation with labels close to the edges helps reveal cropping. Choose the treatment that preserves the information your audience needs, not simply the option that makes every pixel show moving colour.
Work through a letterboxing example
Suppose a 1,920 by 1,080 source is fitted inside the illustrative 1,500 by 1,000 wall. Matching the source width to 1,500 pixels preserves its proportions at approximately 844 pixels high. That leaves about 156 pixels of vertical space in total, or roughly 78 above and below when centred. Actual scaling and rounding depend on the system, but the example explains why horizontal bands can appear without indicating a failed display.
The unused space can remain a neutral background or form part of an intentional branded composition, depending on the layout and approved design. Do not place critical information in an area the controller does not display. Confirm where any background or side content is generated: it might be part of the artwork or a separately supported processor layout. The designer and operator should share the same map before final export.
Work through a cropping example
Using the same source and wall, filling the 1,000-pixel height while preserving proportions produces an image about 1,778 pixels wide. Only 1,500 pixels fit across the active wall, so approximately 278 pixels of that scaled image lie outside the visible width if centred. Important labels near the original side edges may disappear. This is a predictable consequence of mismatched shapes rather than proof that the source file is corrupt.
Cropping may be acceptable for a carefully composed background video but unsuitable for a timetable, pricing message or presentation. Ask the content owner to review the actual cropped result. Where essential information would be lost, redesign the canvas or use a fit arrangement instead. Do not assume a camera subject or product will remain central throughout a moving clip; review the entire final sequence and its transitions.
Preserve detail through the complete signal path
Source resolution, output settings, controller mapping and the wall’s native resolution all form part of the result. A file described as 4K does not turn a lower-resolution wall into a 4K display. Likewise, a detailed wall cannot recover information missing from a low-detail source. Ask the technical team to explain where scaling occurs and provide a confirmed content specification for the normal operating configuration.
Avoid repeated resizing during design and export where the workflow allows a clean final delivery. Test text and line graphics through the actual playback chain rather than checking only a still image in an editing application. Manufacturer product families differ in their configurations; Planar’s official LED range is a useful reminder to obtain model-specific data instead of assuming all LED walls have the same shape or processing capabilities.
Build presentation layouts for real viewers
Determine whether ordinary presentations will fill the complete wall or occupy a defined region. A very wide wall might use a central presentation area with approved side graphics, but that arrangement requires suitable processing and a shared layout plan. Keep chart labels and essential text readable from the intended seats. The usable result depends on content design and viewing conditions as well as the pixel count.
Test the files people actually use, including spreadsheets and dashboards where relevant. If several source windows share the wall, assess each window at its real displayed size. A screen that makes a full-width chart readable may not make the same chart readable when reduced to a small region. Our commercial video wall guide discusses how room use and source workflow affect these choices.
Prepare advertising artwork for each destination
Give the designer the exact canvas, orientation, audience distance and intended message. Rework a print poster or social-media image when necessary rather than simply stretching it across a different shape. Identify one clear message hierarchy and check the smallest essential information at realistic viewing positions. A full canvas with overcrowded text can communicate less effectively than a simpler design that deliberately leaves space around the main message.
If campaigns run on several screen shapes, maintain separate export versions linked to each destination. Keep filenames and approvals clear so an operator does not select a portrait file for a landscape wall by mistake. Review the entire playback sequence on the actual system. Our outdoor advertising planning guide explains why site visibility and audience movement should influence the message as well as the hardware.
Ask for a content specification sheet at handover
- Active width and height in pixels, with the installed orientation.
- A layout map showing reserved regions and approved source positions.
- Supported export requirements confirmed for the actual player and workflow.
- The agreed treatment of sources with different aspect ratios.
- A sample approved file and instructions for checking it on the screen.
- Ownership of the final layout and configuration backups.
Review this sheet after any cabinet rearrangement, controller replacement or major workflow change. Old artwork templates can become misleading when the physical or processing configuration changes. Keep the current version with operator instructions and share it with outside agencies before production begins. That small document helps prevent avoidable redesign and gives staff a clear reference when a file appears clipped or distorted.
Diagnose a shape problem systematically
If circles look oval, check whether the source is being stretched. If side labels disappear, investigate cropping and source-window boundaries. If unused bands appear, check whether a fit policy is preserving a different source shape. These observations suggest questions for the operator; they are not a complete fault diagnosis.
Keep the original file and compare it with an approved test asset through the same input. Change settings through the responsible technical team and record the result. This helps isolate a content-layout issue without making unrelated alterations to a working installation.
Choose the canvas before commissioning the campaign
The practical sequence is to define the viewing task, confirm the installed pixel canvas, agree the fit policy, design the content and test the final export. If the result is unsuitable, investigate the source, layout and settings before concluding that the display itself is faulty. Record the configuration that worked so the same process can be repeated for the next presentation or campaign.
When planning a Leyard display, ask Mustang Communications for a model-specific proposal that includes active dimensions and content resolution. Combine that information with the buyer selection checklist to connect the screen to its actual audience. A well-matched canvas helps useful content remain readable, proportionate and complete without relying on a generic video-format label.