Patent ID: 8451239
Filing Date: 2013-05-28
Classification: G06F,Y02D

Abstract:
1. A driving circuit for a touch panel, the touch panel having a plurality of scan lines, the driving circuit comprising: a detection module for periodically scanning all the plurality of scan lines, so as to detect whether the touch panel is controlled by touch and detect an exact contact point when the touch panel is controlled by touch; an interruption module for turning off the detection module when the touch panel is not controlled by touch; a selective scan module for selecting one set of scan lines from at least two sets of the plurality of scan lines to periodically and synchronously scan the set of selected scan lines when the detection module is turned off, wherein scanning of the selected scan lines detects whether the touch panel is touched; and a switching module for turning on the detection module and turning off the selective scan module when the touch panel is touched.