Patent ID: 8614687

Claim:
A detection method for a capacitive touch screen, comprising: providing a capacitive touch screen, including: a conductive strip pattern having a plurality of conductive strips exposed from each other, the conductive strip pattern including: a plurality of first conductive strips operatively provided with a driving signal during mutual capacitive detection, wherein each first conductive strip includes a plurality of first connecting lines aligned in a first direction and a plurality of first conductive pads aligned in a second direction, and the first connecting lines are connected with the first conductive pads; and a plurality of second conductive strips providing mutual capacitive coupling signals, the first conductive strips and the second conductive strips being exposed and separated from each other, wherein each second conductive strip includes a plurality of second connecting lines aligned in the second direction and a plurality of second conductive pads aligned in the first direction, and the second connecting lines are connected with the second conductive pads; and a guarding pattern provided with a direct current (DC) signal, and the guarding pattern and the conductive strip pattern being exposed and isolated from each other; and simultaneously and continuously providing the driving signal to at least one first conductive strip, and providing the DC signal to first conductive strips not driven by the driving signal; and generating sensing information based on the mutual capacitive coupling signals provided by the second conductive strips each time the driving signal being provided; wherein the conductive strip pattern allows that, when a touch area of each external conductive object on the capacitive touch screen is larger than a predetermined area, the exposed area of the guarding pattern covered by each touch area is larger than the exposed area of the second conductive strips covered by the touch area or larger than the exposed area of the conductive strip pattern covered by the touch area.