Patent ID: 9501180
Filing Date: 2016-11-22
CPC Classification: G06F

Claim Text:
1. A control method for capacitance sensing, applied to a single-layer self-capacitance type touch panel comprising a plurality of triangle or trapezoidal electrodes that undergo a charging/discharging operation, the method comprising: outputting a first voltage signal to a first triangle or trapezoidal electrode for self-capacitance touch sensing while outputting a second voltage signal to a second triangle or trapezoidal electrode next to the first triangle or trapezoidal electrode, the second voltage signal being applied not for self-capacitance touch sensing, wherein the first and second voltage signals are different, and when the first voltage signal and the second voltage signal are respectively outputted to the first triangle or trapezoidal electrode and the second triangle or trapezoidal electrode a first voltage difference is present between the first and second triangle or trapezoidal electrodes, and a second voltage difference is present between the first and second triangle or trapezoidal electrodes when capacitances of the first triangle or trapezoidal electrode are sensed with no touch event sensing occurring with respect to the second triangle or trapezoidal electrode; and the first voltage difference and the second voltage difference are substantially the same, wherein the first voltage difference is present before the charging/discharging operation and the second voltage difference is present after the charging/discharging operation, and wherein the touch panel comprises a plurality of triangle or trapezoidal electrodes, and touches of different sections of each electrode generate different self capacitances.