Abstract: A touchpad comprising a supporting medium (3) supporting a plurality of spaced apart conductors (2) in which there is no electrical contact between the conductors, each conductor being sensitive to the proximity of a finger (1) to vary the capacitance of said conductor (2) to detect the presence of said finger (1) positioned close to that conductor, the touchpad further comprising a means (4) to concentrate electric field between conductors (2) towards the plane of the supporting medium (3).