Capacitive touchscreen with rhombic and hexagonal pads
First Claim
1. 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.
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Accused Products
Abstract
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.
7 Citations
21 Claims
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1. A detection method for a capacitive touch screen for detecting touches or approaches of external conductive objects, comprising:
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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.
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2. A device including a capacitive touch screen for detecting touches or approaches of external conductive objects, comprising:
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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 the first conductive strips and the second conductive strips are exposed and separated from each other, wherein the area of the hexagon is larger than the area of the rhombus; and a controller for providing the driving signal and receiving the mutual capacitive coupling signals from the second conductive strips when the at least one first conductive strip is being provided with the driving signal, wherein the second conductive strips are sequentially arranged in parallel and there are N second conductive strips, where N is a natural number, wherein the controller generates 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. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A capacitive touch screen for detecting touches or approaches of external conductive objects, comprising:
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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; 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 the first conductive strips and the second conductive strips are exposed and separated from each other, wherein the area of the hexagon is larger than the area of the rhombus, wherein the second conductive strips are sequentially arranged in parallel and there are N second conductive strips, where N is a natural number, wherein a controller of the touch screen generates 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. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification