Edgeless Single-Layer Touch Sensor

摘要

A touch sensor includes a substrate and a plurality of columns of electrodes disposed on a first side of the substrate. The substrate includes a first end and a second end opposite the first end. The columns each include a sense electrode and drive electrodes. The columns include a first column adjacent to the first end, a second column adjacent to the second end, and one or more interior columns. The touch sensor also includes a plurality of channels for routing tracks coupled to the drive and sense electrodes. Tracks for the first column are routed in a first channel on a side of the first column opposite from the first end of the substrate. Tracks for the second column are routed in a second channel on a side of the second column opposite from the second end of the substrate. Tracks for the interior columns are dispersed amongst the channels.

主权项

1. A touch sensor comprising:
a substrate comprising a first end and a second end opposite the first end; a plurality of columns of electrodes disposed on a first side of the substrate, the columns being perpendicular to a first direction that extends between the first end and the second end, each column comprising a sense electrode and a plurality of drive electrodes, the plurality of columns comprising:
a first column adjacent to the first end;a second column adjacent to the second end; andone or more interior columns between the first and second columns; and a plurality of channels between the plurality of columns for routing a plurality of tracks coupled to the drive and sense electrodes of the plurality of columns; wherein:
tracks coupled to each of the drive and sense electrodes of the first column are routed in a first channel that is on a side of the first column that is opposite from the first end of the substrate;tracks coupled to each of the drive and sense electrodes of the second column are routed in a second channel that is on a side of the second column that is opposite from the second end of the substrate; andtracks coupled to the drive and sense electrodes of the one or more interior columns are dispersed amongst the plurality of channels.