Capacitive Switching

Backlit capacitive switched HMI units remove design constraints

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IGT Industries Ltd has developed an innovative method of combining the benefits of capacitive switching with multi-colour area-specific backlighting. Capacitive switching is a well-established technology. It is particularly beneficial in applications such as public information kiosks, ticket machines, self-service tills, vending machines and other applications where vandalism is a potential hazard. Historically, illuminating capacitive switches has caused problems for designers because the electric field from the light source affects the operation of the capacitive switch, but by using thin film light guides and remote LED light sources, the two technologies can be successfully combined.

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The HMI units are extremely reliable and can be fully sealed, enabling them to be installed in environmentally demanding areas such as onboard ships, in dirty or dusty environments, in public buildings or in the open.

See IGT's latest Development in Capacitive Touchscreen technology

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