TOUCH PANEL ELECTRODE STRUCTURE FOR USER GROUNDING CORRECTION

摘要

A touch panel electrode structure for user grounding correction in a touch panel is disclosed. The electrode structure can include an array of electrodes for sensing a touch at the panel, and multiple jumpers for selectively coupling groups of the electrodes together to form electrode rows and columns that cross each other. In some examples, the array can have a linear configuration and can form the rows and columns by coupling diagonally adjacent electrodes using the jumpers in a zigzag pattern, or the array can have a diamond configuration and can form the rows and columns by coupling linearly adjacent electrodes using the jumpers in a linear pattern. In various examples, each electrode can have a solid structure with a square shape, a reduced area with an outer electrode and a physically separate center electrode, a hollow center, or a solid structure with a hexagonal shape.

主权项

1. A touch sensitive device comprising:
an array of touch node electrodes; and a processor coupled to the array of touch node electrodes and capable of:
measuring a self-capacitance of a plurality of touch node electrodes; and measuring a mutual capacitance between a first touch node electrode of the plurality of touch node electrodes and a second touch node electrode of the plurality of touch node electrodes, wherein measuring the mutual capacitance between the first touch node electrode and the second touch node electrode comprises:
applying a stimulation voltage to the first touch node electrode; andmeasuring, at the second touch node electrode, the mutual capacitance between the first touch node electrode and the second touch node electrode.