CAPACITIVE TOUCH SCREEN
First Claim
1. 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
simultaneously and continuously providing the driving signal to at least one first conductive strip, and providing a direct current (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.
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Accused Products
Abstract
The present invention provides a mutual capacitive multi-touch screen, which includes a guarding pattern and a conductive strip pattern exposed from each other. The conductive strip pattern includes a plurality of first conductive strips provided with a driving signal and a plurality of second conductive strips for providing mutual capacitive coupling signals, and the guarding pattern is provided with a DC signal. The guarding pattern allows that, when a touch range of each external conductive object is larger than a predetermined condition, capacitive coupling between each external conductive object and the guarding pattern or capacitive coupling between each external conductive object and the first conductive strips and the guarding pattern is greater than capacitive coupling between each external conductive object and the second conductive strips.
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Citations
22 Claims
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1. A detection method for a capacitive touch screen, comprising:
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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 simultaneously and continuously providing the driving signal to at least one first conductive strip, and providing a direct current (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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A capacitive touch screen, comprising:
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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 the first conductive strips not driven by the driving signal are provided with a direct current (DC) signal, and 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 wherein the DC signal is provided by a controller, the controller simultaneously and continuously provides the driving signal to at least one first conductive strip, and generates sensing information based on the mutual capacitive coupling signals provided by the second conductive strips each time the driving signal is provided. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification