Video wall supports multi-touch transition between screen tiles

December 18, 2019 //By Julien Happich
video wall
Zytronic has developed a video wall demonstrator consisting of four multi-touch screens that are innovatively linked to enable seamless touch transition between screen tiles.

Each of the four 55” multi-touch sensors in the 2x2 array features an ultra-narrow border, creating a sleek appearance by using the maximum display area. To build an interactive video wall, designers typically fix protective glass panels to each display and then use a clip-on infra-red or camera-based touch detection system around the tiled, narrow border screens, which creates an unsightly “protruding bezel,” explains Ian Crosby, Sales and Marketing Director, Zytronic.

Unfortunately, in addition to the ugly frame, infra-red and camera-based touch detection technologies tend to be susceptible to false and accidental touches and can be confused by strong direct sunlight or prevented from working by dirt and debris accumulating on the surface, affecting the optical transmitters or receivers.

The alternative is to use other touch technologies such as acoustic or capacitive-based systems, but until now, these have required wider borders which detract from the appearance of the interactive video wall. The new Zytronic projected capacitive solution removes both these issues completely, while enabling ultra-fast, accurate touchscreen responses and providing borders that match the latest near-borderless LCDs.

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