To enhance a touch HMI with control keys, sliders or faders, encoders or touchpads, no expensive ITO sensors manufactured in complex semiconductor processes are required. Unless these control elements should or must be transparent. Because, for example, there is a display in the background.
We screen print the required touch sensors on the well-protected back of the glass. The control elements thus consist of simple conductor track areas. Additional hardware elements are not required – except for light effects, e.g. to display the current position of a fader. For the evaluation of these matrix sensors and for light effects we also have ready-to-use solutions (hardware and firmware).