A strong up and coming technology is capacitive sensing. As we getting more and more used to touchscreens behind glass (mobiles, tablets, etc.), switching behind glass attracts the interest of the industry. If one takes into account the possibilities switching behind a cover lens gives, it is clear that capacitive sensing technology is recognized as future proof. With the glass examples we have produced we have demonstrated the following advantages:
- Easy to clean
- Highly decorative solutions including full colour printing (both transparent and light blocking)
- Backlight options
- Death fond printing options
- Integration of displays and insert labels behind the glass
Many applications still use membrane switch technology which is based on polyester graphical overlays with a switching layer underneath. This technology is not suitable to be used with a glass cover lens. Capacitive sensing is the solution to overcome this problem. With the use of a sensing layer and a microcontroller we can operate switches behind glass or other surfaces. This Technology is known within SCHURTER as CapKey®.