A touch sensing device is disclosed. The touch sensing device includes one or more multifunctional nodes each of which represents a single touch pixel. Each multifunctional node includes a touch sensor with one or more integrated I/O mechanisms. The touch sensor and integrated I/O mechanisms share the...http://www.google.co.uk/patents/US8022935?utm_source=gb-gplus-sharePatent US8022935 - Capacitance sensing electrode with integrated I/O mechanism
