TOUCH SENSING METHOD, TOUCH DISPLAY APPARATUS AND PORTABLE ELECTRONIC DEVICE

摘要

A touch sensing method, a touch display apparatus and a portable electronic device thereof are provided. A system, a driving method and an architecture of a provided touch display panel are used for decreasing a resistance value between the ultrathin touch display panel (for example, a combination of an AMOLED display panel and a touch panel) or decreasing an influence of the resistance value, so as to decrease a chance of induction error of the touch event or induction misjudgement.

主权项

1. A touch sensing method, adapted to a touch display apparatus, wherein the touch display apparatus comprises a display panel and a touch panel, the display panel comprises an electrode layer, and the touch panel comprises a driving electrode layer, the touch sensing method comprising:
applying a voltage to the driving electrode layer; setting a system parameter to determine whether an induction event is occurred, if not, obtaining a sensing voltage, and if yes, obtaining a parasitic capacitance voltage corresponding to the induction event; and determining whether a value obtained by subtracting the sensing voltage from the parasitic capacitance voltage is smaller than a threshold voltage, if yes, adjusting the system parameter, and determining whether a next induction event is occurred according to the updated system parameter, if not, determining whether a variation of the sensing voltage is smaller than a threshold, if not, reporting a touch point, if yes, adjusting the system parameter, and determining whether a next induction event is occurred according to the updated system parameter.