Patent ID: 8730193

Claim:
A detection method for a capacitive touch screen for detecting touches or approaches of external conductive objects, comprising: providing a capacitive touch screen in the shape of a rectangle with two opposing long sides and two opposing short sides, the capacitive touch screen including: a plurality of first conductive strips being operatively provided with a driving signal during mutual capacitive coupling detection, wherein each first conductive strip is composed of a plurality of first connecting lines connected in series with a plurality of rhombic first conductive pads, and each first conductive strip exposes a plurality of hexagonal spaces, wherein the first conductive strips are in parallel with the short sides; and a plurality of second conductive strips providing mutual capacitive coupling signals, wherein each second conductive strip is composed of a plurality of second connecting lines connected in series with a plurality of hexagonal second conductive pads, and each second conductive pad is situated in one of the hexagonal spaces, wherein the second conductive strips are in parallel with the long sides, and the first conductive strips and the second conductive strips are exposed and separated from each other, wherein the second conductive strips are sequentially arranged in parallel and there are N second conductive strips, where N is a natural number; providing at least one of the first conductive strips with the driving signal from one of the long sides, and receiving the mutual capacitive coupling signals from the second conductive strips at one of the short sides when the at least one first conductive strip is being provided with the driving signal; and generating N−2 dual differential values based on the mutual capacitive coupling signals, where each dual differential value is obtained by subtracting between a difference between the mutual capacitive coupling signals of the first two second conductive strips among three adjacent second conductive strips and a difference between the mutual capacitive coupling signals of the last two second conductive strips among the three adjacent second conductive strips.