CAPACITIVE FINGERPRINT SENSING DEVICE COMPRISING DISPLAY FUNCTIONALITY

There is provided a capacitive fingerprint sensing device (20) for sensing a fingerprint pattern of a finger, the capacitive fingerprint sensing device comprising a plurality of sensing elements (22).Each sensing element comprises a protective dielectric top layer (30) to be touched by the finger; a first electrode (34) comprising an optically transparent electrically conductive sensing structurearranged underneath the top layer; fingerprint sensing circuitry connected to the first electrode and configured to provide an analog sensing signal indicative of a distance between the finger and the sensing structure, a second electrode (36) arranged underneath the first electrode; an organic light emitting layer (38) arranged between the first and second electrodes; display element control circuitry (42) connected to the second electrode and configured to control a display element comprising the first and second electrodes and the organic light emitting layer; and a switching mechanism configured to switch the sens