Sensing device with segmented electrodes

Abstract

A sensing device and method for driving segmented electrodes is provided. The sensing device includes a sensing area having a first sensing region and a second sensing region. The sensing device also includes a plurality of receiver electrodes comprising a first set of receiver electrodes disposed in the first sensing region and a second set of receiver electrodes disposed in the second sensing region and a plurality of segmented transmitter electrodes. Each segmented transmitter electrode comprises a first transmitter electrode and a second transmitter electrode. The first transmitter electrode is isolated from the second transmitter electrode such that the first transmitter electrode is separately controllable from the second transmitter electrode. The first transmitter electrode is disposed in the first sensing region and the second transmitter electrode is disposed in the second sensing region. The device is configured to drive the plurality of segmented transmitter electrodes with sensing signals; receive resulting signals from the plurality of receiver electrodes; and detect presence of an input object proximate to the sensing area.