A capacitance measuring apparatus is provided, for example for measuring variations in pixel capacitance of an active matrix liquid crystal display to provide a “touch screen” function. The apparatus comprises a capacitor network having a plurality of states presenting different capacitances. A sense...http://www.google.fr/patents/US20060114247?utm_source=gb-gplus-shareBrevet US20060114247 - Apparatus for measuring a capacitance and sensor array
Apparatus for measuring a capacitance and sensor array
