Video technology and LED screens

LED screens are now by far the most popular way to create video displays. They perform exceptionally well in daylight and other brightly lit event venues, and offer considerable flexibility in placement. Projection screens, by contrast, depend on the venue having a suitable position for a projector opposite the screen. LED screens also make it easy to create large, seamless displays and irregularly shaped configurations. A projector can be cost-effective in a dark meeting room, for example.

The size depends on the venue dimensions, viewing distances, stage structure and content being displayed. Text legibility must be assessed from the seats farthest from the screen in particular.

Pixel pitch is the distance between adjacent LED pixels in millimetres. A screen with a large pixel pitch is less suitable when the audience is close to it, because individual pixels become visible at short viewing distances, reducing image clarity.

Yes. Modular LED screens can be used to create wide panoramic displays and other layouts that differ from the standard 16:9 format. Content must then be prepared for the chosen aspect ratio and resolution.

Yes. Different screens can show the same image or their own content, and a media server can synchronise multiple displays when needed. A video professional prepares the content and programmes its playback on the media server.

We strongly recommend having a video technician manage presentation playback so that speaker changes and the start of videos and presentations follow the agreed running order. Speakers can still change their slides using a wireless remote (a “clicker”). A display showing presenter notes and a technician-controlled clock or timer can also be provided on stage. Presentation files should be supplied in advance for the technicians to check. We have developed our own DC Transfer service to make submitting materials easy and secure.

A production involving multiple sources, live video cues or a media server almost always needs a technician to operate and monitor it. A simple setup in which the speaker’s presentation computer connects directly to a projector can generally run without a technician supervising playback.

IMAG, or image magnification, means showing live camera footage from the event on screens in the venue. It helps the audience follow speakers and performers in a large arena or from the back of a long room, for example.

Yes. A video switcher and presentation equipment allow switching between camera footage, slides, videos and other signal sources. Images from several sources can also be combined on the screen simultaneously.

Yes. An LED display can serve as a presentation screen, a striking backdrop or an attention-grabbing feature for your stand. Its size and brightness are planned around the stand dimensions and the exhibition organiser’s technical restrictions.

We strongly recommend using the same provider for both video technology and streaming at a hybrid event. This makes it easy to route videos and presentation materials into the live stream and use multicamera footage on the screens at the venue.

The price depends on the size, number and technology of the displays, screen placement (ground-stacked or suspended), the playback system required, personnel and transport. Event duration and the time available for setup also affect the cost.