Capacitive touch screen with square or rhombus conductive strips with extension pads

摘要

The present invention provides a mutual capacitive multi-touch screen. The conductive strip pattern allows that, when a touch range of each external conductive object on the mutual capacitive multi-touch screen is larger than a predetermined condition, capacitive coupling between each external conductive object and first conductive strip is greater than capacitive coupling between each external conductive object and second conductive strip, such that the proportion of a driving signal flowing out of the first conductive strip via at least one first external conductive object in the external conductive objects and into the second conductive strip via at least one second external conductive object in the external conductive objects decreases as the number of second external conductive objects increases.

主权项

1. A detection method for a capacitive touch screen, 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 first conductive pads, and each first conductive strip is a square or a rhombus with an extension pad extending from each of the four sides, wherein the first conductive strips are in parallel with the short sides; anda 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 second conductive pads, and each second conductive strip is a square or a rhombus with an indented recess space on each of the four sides, wherein the second conductive strips are in parallel with the long sides, wherein each first conductive pad is a hexadecagon formed from a square or rhombus with outwardly-extending triangular extension pads and each second conductive pad is a hexadecagon formed from a square or rhombus with indented triangular recess spaces; and 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.