| 主权项 |
1. A capacitive touch sensor, comprising:
a plurality of first sensing units and a plurality of second sensing units arranged in a matrix on a substrate, and each of the first sensing units and each of the second sensing units comprising: a pair of directly adjacent first electrodes; a second electrode arranged around each of said first electrodes and electrically isolated from each of the first electrodes, and each of the pair of directly adjacent first electrodes being located in an interior space bounded by two transverse parts and two longitudinal parts of said second electrode, wherein a portion of the second electrode between the pair of directly adjacent first electrodes and bounding both the pair of directly adjacent first electrodes is a same transverse part of the second electrode, and one of the two longitudinal parts of the second electrode bounding each of the first electrodes has an opening; and a third electrode arranged outside of the interior space and directly connected to each of the first electrodes via the openings, wherein the third electrode of the first sensing unit is isolated from the third electrode of the second sensing unit; wherein in each of the second sensing units a trace of the first sensing unit and the first electrodes of the second sensing units are respectively located at opposite sides of the third electrode of the second sensing units, and in the plurality of first sensing units and a section of second sensing units among the plurality of second sensing units, the trace of the first sensing unit in the section of the second sensing units is directly connected with the third electrode in the plurality of first sensing units, wherein the section of the second sensing units is directly adjacent to the plurality of first sensing units, and the trace of the first sensing unit directly contacts with one of a plurality of third electrodes of the first sensing units and is not electrically in contact with any other third electrode. |
