Patent ID: 8970523
Filing Date: 2015-03-03
Classification: G06F

Abstract:
1. A two-dimensional capacitive touch panel with a single sensor layer, the touch panel comprising: a first electrode made from the single sensor layer and having a configuration formed by plural interconnected first and second branches; and a plurality of sensing units, wherein each sensing unit comprises: a second electrode made from the single sensor layer, positioned at a first side of a corresponding first branch of the first electrode, for sensing a first mutual capacitance established between the first electrode and the second electrode; and a third electrode made from the single sensor layer, positioned at a second side of the same corresponding first branch of the first electrode, for sensing a second mutual capacitance established between the first electrode and the third electrode; wherein, each of the second branches is positioned between two corresponding adjacent sensing units, the second electrodes are connected to multiple first traces respectively, the third electrodes are connected to multiple second traces respectively, an excitation signal is applied to the first electrode and simultaneously transmitted to the interconnected branches when sensing the first and second mutual capacitances, and the first and second mutual capacitances respectively received from the multiple first and second electrodes through corresponding first and second traces are used to calculate a position on which the touch panel is contacted by an external conductor.