Patent ID: 9372585
Filing Date: 2016-06-21
CPC Classification: G06F

Claim Text:
1. A detecting device for a capacitive touch screen, comprising: a capacitive touch screen including a plurality of driving electrodes and a plurality of detecting electrodes, wherein the driving electrodes and the detecting electrodes cross each other at a plurality of intersections; a driving circuit for providing a driving signal, wherein in a single-electrode driving mode, the driving signal is provided to only one of the driving electrodes at a time, while in a multiple-electrode driving mode, the driving signal is simultaneously provided to a set of driving electrodes at a time, wherein apart from the last N driving electrodes, each driving electrode and N successive driving electrodes construct the set of driving electrodes being simultaneously driven, and N is the number of the set of driving electrode minus one; and a detecting circuit, each time the driving signal being provided, obtaining one-dimensional (1D) sensing information from the detecting electrodes, wherein in the multiple-electrode driving mode, a 1D sensing information for multiple-electrode driving is obtained when each set of driving electrodes are provided with the driving signal, and in the single-electrode driving mode, a first-side 1D sensing information for single-electrode driving and a second-side 1D sensing information for single-electrode driving are obtained when the first driving electrode and the last driving electrode are provided with the driving signal, respectively; and a control circuit for generating an image based on the first-side 1D sensing information for single-electrode driving, all the 1D sensing information for multiple-electrode driving and the second-side 1D sensing information for single-electrode driving.