Patent ID: 9110544
Filing Date: 2015-08-18
Classification: G06F

Abstract:
1. A touch sensing method of charge distribution type, comprising: removing charges in a panel; providing a scanning signal to scan a plurality of sensing regions on the panel; setting the panel in a first switching mode for charging the panel with the scanning signal; setting the panel in a second switching mode for modifying distribution of charges injected into the panel; acquiring an equivalent voltage after the injected charges are distributed at an equilibrium state; determining whether the step of scanning the sensing regions of the panel is completed so as to decide whether the acquired equivalent voltage is determined; when the step of scanning the sensing regions is completed, determining whether an object is in contact with or close to the panel according to a variation of the equivalent voltage; and when the step of scanning the sensing region is not completed, performing a scanning process for a next sensing region of the sensing regions, wherein when the object is in contact with or close to the panel, a plurality of sensing paths are formed between the object and the panel such that the charges are redistributed, thus resulting in the variation of the equivalent voltage.