Most conference screens get specified from the front of the room. Someone stands at the stage edge, looks at the wall behind it, and decides how big the picture should be. Then two hundred delegates sit down and the people on row eighteen spend the morning squinting at a bar chart they cannot read.
LED screen hire for conferences is a sizing problem before it is a picture problem. Light emitting diode (LED) panels are modular, so the screen can be almost any shape and size you want. That flexibility is exactly why the decision gets made badly. Here is how we work through it, and what we ask an organiser before anything gets specified.
What LED screen hire for conferences actually has to solve
Three things decide whether a conference screen works, and none of them is the panel itself. The furthest seat has to be able to read the smallest thing on a slide. The screen has to beat whatever light the room throws at it. And the whole assembly has to be held up safely in a venue that has its own rules about what may hang from its ceiling.
Pixel pitch, and the rule that keeps a specification honest
Pixel pitch is the distance, in millimetres, between the centre of one LED pixel and the centre of the next. A 2.5mm pitch means the pixels sit 2.5mm apart. Smaller number, more pixels in the same physical area, more detail in the picture.
The useful rule comes from the manufacturers. Christie’s guidance on pixel pitch puts it as roughly one metre of minimum viewing distance for every millimetre of pitch, so a 1.5mm wall wants about 1.5 metres before the pixel structure stops being visible. It is a floor, not a target. It tells you how close someone can stand before the image falls apart, not how far away it still reads well.
Which is why a lower number is not automatically better. If your nearest seat is six metres from the screen, a very fine pitch buys resolution nobody in the room can resolve, and it changes what the screen is built from and how long the build takes. Specify from the back row of the room, not from the spec sheet.
Size the screen from the back row
Measure the distance from the screen position to the furthest seat, then work backwards. The question is not how big the screen can be. It is how small the smallest useful thing on a slide is allowed to be, and whether that survives the journey to the back of the hall.
There is a check that settles this in five minutes and almost nobody does it. Put a real slide from the real deck, at the size it will actually appear, on a screen of the size you are considering, then walk to the furthest seat and read it. Footnotes, axis labels, the eight-point line at the bottom of the financials. If it fails there, it fails on the day.
Two physical constraints usually bite before the sums do. Ceiling height caps how tall the screen can be, and the venue’s ceiling is rarely as high as the photograph suggested. Sightlines cap how low the bottom edge can sit: on a flat floor, a head on row three blocks the lower part of the picture for everyone behind it. Between those two you often have less usable height than you expected, which pushes the wall wider rather than taller.
The room’s light is part of the specification
Conference rooms are rarely dark. Delegates take notes, so the venue keeps the house lights up, and there is usually a window the blinds do not quite cover.
LED handles that better than projection, because it emits light rather than reflecting it. It is still worth asking what brightness the panels run at and, just as importantly, whether they can be turned down. A screen running too hot in a dimmed plenary is as much of a problem as one that washes out at breakfast, and it will wreck the camera shot if you are filming the session. If the same screen has to work for a bright registration period and a dark awards segment, say so before anything is specified.
How the screen is actually held up
An LED wall is either flown from the venue’s rigging points or built on a ground support frame that stands on the floor. That decision belongs early, because it changes the weight loading, the floor plan and the build schedule.
If it is flown, the venue’s limits govern. The Health and Safety Executive is specific about suspended equipment at events: its guidance on work at height says no flown or suspended equipment should rely solely on one suspension cable, clamp or bolt, that each means of suspension should be secured to independent fixing points, and that the weight must not exceed the safe working load of those points. Secondary safety, a chain or wire, is expected on suspended equipment.
If it is ground supported, you have a temporary structure, and that carries its own duties. The Institution of Structural Engineers guidance on demountable structures puts the client in the position of duty holder and expects competent people to design, erect, inspect and dismantle the structure, with written evidence of that competence and a written technical specification of what is required. That is a reasonable thing for an organiser to ask a supplier to produce, and a reasonable thing for a supplier to have ready.
Expect to see a rigging plan with weight loadings, a method statement and risk assessment, and a name against the design. If a supplier cannot produce those quickly, that tells you something before the get-in, which is the window the venue gives you to load in and build.
Content is a specification, not an afterthought
A modular wall is whatever shape the panels make it. Build one five metres wide and 2.8 metres high and you do not have a 16:9 canvas, you have something slightly wider. A deck built for 16:9 will then sit inside black bars or get stretched, and neither looks like anyone planned it.
Fix the pixel canvas at specification stage and tell the presenters what it is, in writing, with a deadline. Ask for video at the right resolution rather than something scaled up on the day, and keep important content away from the outer edges. The bottom of a screen is the part most likely to be blocked by a head, a lectern or a camera position.
Questions worth asking before you book
- How far is the furthest seat from the screen, and what pitch is being proposed for that distance
- Is the screen flown or ground supported, and who has signed off the design
- What do the venue’s rigging points allow, and has anyone actually checked rather than assumed
- What is the pixel canvas, and when will the presenters be told
- Who is in the room during the sessions, and what happens if a panel fails mid-session
- What are the get-in and de-rig windows, de-rig being the takedown and load-out after the event
Specify the event, then the kit
The position we hold, and the reason we ask about the room before we talk about panels, is that specifying equipment before you understand what the event is for produces the wrong equipment. A screen sized for a keynote is not a screen sized for a panel session with four cameras, even in the same room on the same day.
It is also why we would rather one supplier carried the screen, the rigging and the crew than have an organiser holding three sets of drawings together. One of our published testimonials, from Rick Stock on a video wall hire, describes our hire team responding quickly with sound technical advice and our install crew supporting equipment that had come from the client’s other suppliers.
If you have a conference booked and a room you have not worked in, we will go through the seating plan, the ceiling and the light before we talk about panels. You can see the kit on our LED video wall page and what we do for conferences. When you are ready, tell us about the event through our contact page or email us at hire@eventproductiongroup.co.uk, and we will tell you what the room needs.
