Patent ID: 9213457
Filing Date: 2015-12-15
Classification: G06F

Abstract:
1. A driving method for touch panel, comprising: providing a plurality of driving signals with a first voltage level to a plurality of sensing electrodes of a touch panel by a driving voltage supplying unit; receiving a plurality of sensing signals corresponding to the plurality of driving signals with the first voltage level from the plurality of sensing electrodes of the touch panel; obtaining a second voltage level according to the plurality of sensing signals for updating the plurality of driving signals by a processing unit coupled to the driving voltage supplying unit, the second voltage level being different from the first voltage level; and providing a plurality of driving signals with the second voltage level generated by updating the plurality of driving signals with the first voltage level to the plurality of sensing electrodes of the touch panel; wherein detection accuracy is improved when the second voltage level is higher than the first voltage level, and power consumption is reduced when the second voltage level is lower than the first voltage level.