Method for controlling a touch panel having button electrodes and sensing electrodes in a same conductive layer

摘要

A method for controlling a touch panel is disclosed. A first driving signal is applied to the driving electrodes to obtain a number of first electrical signals corresponding to a number of conductive stripes of touch panel. The first electrical signals are converted into a number of first digital signals by digital analog conversion with a first factor. A second driving signal is applied to a number of driving electrodes to obtain a number of second electrical signals corresponding to a number of button electrodes of the touch panel. The second electrical signals are converted into a number of second digital signals by digital analog conversion with a second factor. The second factor is smaller than the first factor.

主权项

1. A method for controlling a touch panel comprising:
providing the touch panel comprising a driving layer and a sensing layer opposite to the driving layer; the driving layer comprising a first conductive layer and a plurality of driving electrodes located on a side of the first conductive layer along a first direction; the sensing layer comprising a second conductive layer, a plurality of sensing electrodes and a plurality of button electrodes; the plurality of sensing electrodes and the plurality of button electrodes separately located on two opposite sides of the second conductive layer along a second direction crossed with the first direction; wherein the plurality of driving electrodes, configured for driving the plurality of button electrodes, are defined as second driving electrodes; and the other driving electrodes are defined as first driving electrodes; applying a first driving signal V1 to the first driving electrodes one by one, obtaining a plurality of first electrical signals by scanning the plurality of sensing electrodes one by one, and converting the plurality of first electrical signals into a plurality of first digital signals by digital analog conversion with a first amplified factor κ; and applying a second driving signal V2 to the second driving electrodes one by one, obtaining a plurality of second electrical signals by scanning the plurality of sensing electrodes one by one, and converting the plurality of second electrical signals into a plurality of second digital signals by digital analog conversion with a second amplified factor κ′; wherein the second amplified factor κ′ is smaller than the first amplified factor κ.