Self-capacitance and mutual capacitance touch-sensor panel architecture

A touch sensor panel comprising:

• a first set of touch electrodes configured to operate as drive lines during a mutual capacitance measurement mode of the touch sensor panel;
• a second set of touch electrodes configured to operate as sense lines during the mutual capacitance measurement mode of the touch sensor panel;
• and
• a third set of touch electrodes configured to operate as self-capacitance touch electrodes during a self-capacitance measurement mode of the touch sensor panel,
• wherein during the self-capacitance measurement mode of the touch sensor panel, changes in self-capacitance of the third set of touch electrodes are sensed while the first set or the second set of touch electrodes are actively driven at a voltage.

A method for operating a touch sensor panel, the method comprising:

• operating a first set of touch electrodes that are disposed in a first layer of the touch sensor panel as drive lines;
• operating a second set of touch electrodes that are disposed in a second layer of the touch sensor panel, different than the first layer of the touch sensor panel, as sense lines, wherein one or more mutual capacitance touch nodes are formed by the first set of touch electrodes and the second set of touch electrodes;
• and
• operating a third set of touch electrodes that are disposed in the first layer or the second layer of the touch sensor panel as self-capacitance electrodes.

A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a processor, cause the processor to perform a method comprising:

• operating a first set of touch electrodes that are disposed in a first layer of the touch sensor panel as drive lines;
• operating a second set of touch electrodes that are disposed in a second layer of the touch sensor panel, different than the first layer of the touch sensor panel, as sense lines, wherein one or more mutual capacitance touch nodes are formed by the first set of touch electrodes and the second set of touch electrodes;
• and
• operating a third set of touch electrodes that are disposed in the first layer or the second layer of the touch sensor panel as self-capacitance electrodes.

A method for operating a touch sensor panel, the method comprising:

• during a mutual capacitance measurement mode of the touch sensor panel:
• operating a first set of touch electrodes as drive lines;
• and
• operating a second set of touch electrodes as sense lines;
• and
• during a self-capacitance measurement mode of the touch sensor panel:
• operating a third set of touch electrodes as self-capacitance touch electrodes;
• and
• sensing changes in self-capacitance of the third set of touch electrodes while actively driving the first set or the second set of touch electrodes at a voltage.

A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a processor, cause the processor to perform a method comprising:

• during a mutual capacitance measurement mode of the touch sensor panel:
• operating a first set of touch electrodes as drive lines;
• and
• operating a second set of touch electrodes as sense lines;
• and
• during a self-capacitance measurement mode of the touch sensor panel:
• operating a third set of touch electrodes as self-capacitance touch electrodes;
• and
• sensing changes in self-capacitance of the third set of touch electrodes while actively driving the first set or the second set of touch electrodes at a voltage.