Hochschule Düsseldorf, University of Applied Sciences (HSD) has installed a 4.8m x 2.03m INFiLED WT Series LED wall, specified and delivered by German integrator AbisZ Medien.
Students at the University shoot and grade work in ultrawide formats and are assessed on it, so the display had to be a genuine 21:9 canvas rather than a conventional 16:9 screen with the image letterboxed into the middle of it.
Founded in 1971 through the merger of several regional institutions, HSD is one of the largest universities of applied sciences in North Rhine-Westphalia, teaching more than 11,000
students across 40 programmes. Its teaching model is deliberately real world-focused, with course content drawn from the professional experience of its educators, and practical work treated as an integral part of the programmes rather than an addition to them. The Faculty of Media runs bachelor's programmes in audio and video, media engineering, media informatics, data science, AI and intelligent systems.
The faculty's existing AV setup was more than a
decade old. The university wanted its media students working with display technology of the standard they will meet in industry, and it wanted a screen large enough and good enough that presenting work on it felt like a professional screening rather than a classroom exercise. Feedback from students and staff pointed specifically at an ultrawide 5K wall.
Underneath that is a straightforward point about assessment. When a student is
evaluated on colour grading, framing and visual detail, any compromise the display introduces becomes a compromise in how the work is judged. Cropping, stretching or softness are not cosmetic problems in that context.
The solution reaches 21:9 through the shape of the array rather than from the shape of the product. WT cabinets measure 600 x 337.5mm, a 16:9 format carrying 640 x 360 pixels each. Arranged eight wide
by six high, 48 of these cabinets produce a wall of 4.8m x 2.03m at 5,120 x 2,160 pixels, which is 64:27, the standard ultrawide ratio, at true 5K width. Signal management runs through a NovaStar MX2000Pro controller.
At 0.93mm, the pixel pitch supports that resolution across a surface students stand close to, giving a density of 1,137,777 pixels per square metre. The panels are flip-chip COB, which seats
the LED chips directly on the substrate and removes the wire-bond connection used in conventional construction, and they carry a contrast ratio of up to 100,000:1 with 16-bit greyscale, up to 1,000 nits and a refresh rate of up to 3,840 Hz.
Durability was a condition of the purchase rather than a bonus, since the wall sits in a working teaching space used daily by students. INFiLED's SolidSkin conformal
layer seals every LED beneath a continuous surface, which both protects the face against contact and diffuses light for a softer, more uniform image and deeper perceived blacks. There is no individual LED casing to break away.
The university treated the wall as a long-term asset, which made running costs and service life part of the specification. INFiLED's ColdLED thermal management is intended to hold operating temperature down across
the very high LED density a micro-pitch display carries, extending LED lifespan and maintaining brightness uniformity through long continuous use. In consumption terms, the installation is modest for its resolution, drawing a maximum of around 2.9 kW across the 48 panels and averaging under 1kW in normal operation.
Physically, the wall is slight for its size. Each cabinet is 29.4mm deep and weighs 4.5kg, putting the whole array at
around 216kg and allowing a flush wall mount using standard fixings rather than a custom subframe. Servicing is carried out from the front using INFiLED's magnetic tool, which removes any need for rear access clearance behind the wall and means maintenance can be done inside a teaching timetable rather than around it.
The whole project ran to a fixed academic calendar, giving AbisZ Medien roughly four months from planning.