Patent ID: 8686956
Filing Date: 2014-04-01
Classification: G06F

Abstract:
1. A capacitive touch sensing structure, comprising: a substrate; a plurality of first electrode groups, arranged in a first direction of the substrate, each of the first electrode groups comprising a plurality of adjacent first electrodes; a plurality of first conducting wires respectively coupled to the first electrode groups, with each of the first conducting wires coupled to a respective first electrode group of the plurality of first electrode groups, such that a first capacitance variance of one or more of the first electrodes of one of the plurality of first electrode groups is sensed through a respective one of the first conducting wires; a plurality of second electrode groups, arranged in the first direction of the substrate, each of the second electrode groups comprising a plurality of adjacent second electrodes, the second electrodes interleaved with the first electrodes such that every two adjacent first electrodes are interleaved with and immediately adjacent to at least two respective ones of the second electrodes and that every two adjacent second electrodes are interleaved with and immediately adjacent to at least two respective ones of the first electrodes; and a plurality of second conducting wires respectively coupled to the second electrode groups, with each of the second conducting wires coupled to a respective second electrode group of the plurality of second electrode groups, such that a second capacitance variance of one or more of the second electrodes of one of the plurality of second electrode groups is sensed through a respective one of the second conducting wires, wherein the first electrode groups and the second electrode groups are arranged on the substrate in a way such that a position corresponding to a touch, represented by a first axis and a second axis different from the first axis, is estimated according to the first capacitance variance and the second capacitance variance.