Patent ID: 8125462

Claim:
A projecting capacitive touch sensing device which comprises a plurality arrangements of sensing units, wherein each sensing unit comprises: a first electrode made of a sensing material, wherein the first electrode is square-shaped; a set of second electrodes having a plurality of second electrodes made of the sensing material and being disposed around the peripheral of the first electrode, wherein the second electrodes are triangular-shaped; a third electrode made of the sensing material, wherein the third electrode is square-shaped; a set of fourth electrodes having a plurality of fourth electrodes made of sensing material and being disposed around the peripheral of the third electrode, wherein the fourth electrodes are triangular-shaped; a first sensing axis electrically connected to the first electrode and the third electrode; and a second sensing axis electrically connected to the second electrodes and the fourth electrodes, wherein the first electrode and the second electrodes are arranged to form a quadrangle, and the third electrode and the fourth electrodes are arranged to form a quadrangle directly next to the quadrangle formed by the first and the second electrodes; a non-sensing area is defined between the first electrode and the second electrode.