LED Screen Curvature Calculator
Calculate radius, per-cabinet angle and feasibility of a concave or convex curved LED wall before ordering cabinets and the supporting structure.
The Curvature Calculator allows installers and design offices to precisely determine the angle to apply between each LED cabinet to achieve a regular convex or concave arc, without visual break points or excessive mechanical stress on the mounting hinges. Curved LED screens are increasingly requested for exhibition stands, immersive TV sets and event scenography where a wraparound effect strengthens visual impact.
Unlike a flat screen, a curved LED wall imposes specific mechanical constraints: each cabinet must be fitted with hinges or curvature kits compatible with a minimum radius, often limited by the manufacturer to a maximum angle per joint (generally between 5° and 10° in convex mode, slightly less in concave). Exceeding this limit stresses the data and power connectors, increasing the risk of premature failure.
This tool calculates the resulting curvature radius based on the number of cabinets, their unit width and the angle chosen per joint, allowing you to verify upfront the technical feasibility of a client's desired radius before validating a curved LED screen quote.
Real-world use cases
- An exhibition stand builder designing a 6-metre-wide concave LED screen in 2.6 mm pitch needs to calculate the angle per cabinet required to achieve a 3-metre curvature radius without exceeding the mechanical limit of the supplied hinge.
- A producer of an immersive TV set wants a 270° wraparound convex LED wall around a presenter; the curvature calculation determines how many 500 mm cabinets are needed and what angle to apply at each joint to close the arc without distortion.
- An event agency renting a curved LED screen for a concert stage must verify that the curvature radius requested by the set designer remains compatible with the total weight of the structure and the anchor points available on the ground or rigging.
How to use the curvature calculator
Enter your cabinet dimensions and desired curvature type
Enter the unit width of your LED cabinets (typically 500 or 600 mm), the total number of cabinets in width, and select whether the curvature should be convex (bulging outward, immersive effect) or concave (curving inward, wraparound effect around the audience). This choice determines the applicable mechanical limits depending on the LED screen model.
Read the calculated curvature radius and angle per joint
The tool displays the resulting curvature radius in metres, the angle applied between each cabinet in degrees, and the total cumulative angle of the arc. An indicator flags whether the angle per joint exceeds the standard mechanical limit of market hinges (generally 5° to 10° depending on the manufacturer), which would require either reducing the curvature or using a reinforced curvature kit.
Adjust the number of cabinets or the angle until validated
If the radius requested by the client is not achievable with the current configuration, adjust the number of cabinets, their width, or accept a slightly different radius suggested by the tool as a realistic alternative. Then contact PIXELIGHT to confirm the availability of curvature kits compatible with the selected LED screen model and finalise mechanical feasibility.
Check structural constraints before final assembly
Before assembly, verify that the supporting structure (ground base, rigging system or ground support) is properly sized for a curved screen, whose centre of gravity differs from that of a flat screen. A curvature radius that is too tight for a tall screen can create a tipping risk if the anchor points are not recalculated accordingly, in line with the Eurocode safety standards applicable to temporary structures.
Why correctly calculating LED screen curvature matters
A poor curvature calculation can simply make an LED screen impossible to assemble on site: if the requested angle per joint exceeds the mechanical limit of the hinge, the cabinets do not close properly or place excessive tension on the data connectors (often Cat6 cables or proprietary connectors), causing dead pixels or intermittent signal cuts once the screen is powered on.
Visually, an irregular or poorly calculated curvature breaks the intended illusion: visible joints between cabinets, a moiré effect or image distortion directly harm the scenographic impact the client paid dearly for, particularly on exhibition stands where visual rendering is the main sales argument.
Financially, a reinforced curvature kit or a special hinge for a tight radius typically costs between 15 and 50 euros more per cabinet than a standard hinge, an extra cost better anticipated in the initial quote than discovered mid-assembly, potentially delaying an event's opening.
Complementary tools for a successful curved LED screen
A curved screen requires additional checks compared to a standard flat screen; these tools cover the associated control points.
- Structural Load Calculator — Check the total weight of your curved LED screen and the load distribution on ground anchor or rigging points.
- Ideal Pitch Calculator — Confirm that the pitch remains suitable for the viewing distance once curvature is applied, which can alter the audience's perception angle.
- Structural Cut Plan Generator — Generate the precise cutting plan incorporating curved cabinets and their specific joint kits.
- Tender Response Assistant — Formalise the technical specifications of your curved LED screen into a requirements document before tendering.
Frequently asked questions about LED screen curvature
What is the maximum allowed angle between two LED cabinets?
The maximum angle depends on the cabinet model and its hinge, but is generally between 5° and 10° in convex curvature, and often slightly less in concave mode where the space between cabinets narrows further. Some models specifically designed for curvature (called flexible or bendable) accept larger angles, up to 15° depending on the manufacturer. Always check the cabinet's datasheet before validating a tight radius.
How do you calculate the curvature radius of an LED screen?
The curvature radius is derived from the cabinet width and the angle applied at each joint, using a trigonometric formula relating the chord (cabinet width) to the central angle of the arc. In practice, the smaller the angle per joint, the larger the resulting curvature radius (gentle curve); the larger the angle, the smaller the radius (tight curve). The calculator automates this calculation to avoid manual errors.
What is the difference between convex and concave curvature on an LED screen?
Convex curvature bulges the screen outward, like a column, and is often used for self-supporting installations or totems visible from 360°. Concave curvature curves the screen inward, wrapping around the audience or presenter, an effect favoured on immersive TV sets and certain concert stages to strengthen visual immersion.
Does a curved LED wall consume more power than a flat screen?
Power consumption depends solely on the number of cabinets and their pitch, not on the curvature itself: a curved LED wall of the same surface area as a flat screen consumes an equivalent power. However, the support structure of a curved screen is often more complex and may require additional accessories (joint kits, reinforcements), which impacts the overall project cost rather than energy consumption.
Can any LED wall model be curved?
No, not all LED cabinets are designed for curvature. A model must be equipped with suitable mechanical hinges or data/power connectors flexible enough to withstand the applied angle without breaking. Standard rigid LED walls, without a curvature kit provided by the manufacturer, should never be forced into curvature, at the risk of damaging connectors and voiding the manufacturer's warranty.
What is the minimum curvature radius achievable in practice?
The minimum radius depends on the cabinet model and its width: for 500 mm cabinets with a maximum angle of 10° per joint, a radius of around 2.5 to 3 metres generally remains achievable with full mechanical safety. For tighter radii, you need to turn to smaller unit-width cabinets or flexible models specifically designed for pronounced curvatures.
Have a curved LED screen project to validate?
Curvature calculation is a decisive technical step before any convex or concave LED wall quote. PIXELIGHT's teams offer cabinet models compatible with tight curvature radii and support integrators through the complete mechanical validation of their project, from angle per joint to support structure. Browse our catalogue of curvable LED walls or contact us to study the feasibility of your curvature radius.