Method and device for position detection
First Claim
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1. A method for position detection, comprising:
- providing a sensing device including a plurality of sensors including a plurality of first sensors and a plurality of second sensors, these first and second sensors intersecting each other at a plurality of intersecting points;
determining at least one first sensor corresponding to at least one external touch based on signals of these first sensors by self-capacitance detection; and
determining at least one second 1-D position while each of the at least one determined first sensor is provided with a driving signal based on signals of these second sensors by mutual-capacitance detection.
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Abstract
A method and device for position detection are disclosed. A self-capacitance detection can be performed by a sensing device. According to the result of the self-capacitance detection, a first mutual-capacitance detection can be performed for determining one or more first 1-D positions. According to the result of the first mutual-capacitance detection, a second mutual-capacitance detection can be performed for determining one or more second 1-D positions corresponding to each first 1-D position.
50 Citations
12 Claims
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1. A method for position detection, comprising:
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providing a sensing device including a plurality of sensors including a plurality of first sensors and a plurality of second sensors, these first and second sensors intersecting each other at a plurality of intersecting points; determining at least one first sensor corresponding to at least one external touch based on signals of these first sensors by self-capacitance detection; and determining at least one second 1-D position while each of the at least one determined first sensor is provided with a driving signal based on signals of these second sensors by mutual-capacitance detection. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device for position detection, comprising:
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a sensing device including a plurality of sensors including a plurality of first sensors and a plurality of second sensors, these first and second sensors intersecting each other at a plurality of intersecting points; and a controller for performing at least the following operations; determining at least one first sensor corresponding to at least one external touch based on signals of these first sensors by self-capacitance detection; and determining at least one second 1-D position while each of the at least one determined first sensor is provided with a driving signal based on signals of these second sensors by mutual-capacitance detection. - View Dependent Claims (8, 9, 10, 11, 12)
providing at least a 2-D position based on the at least one second 1-D position corresponding to the at least one first 1-D position.
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9. The method of claim 7, the controller further includes performing the following operations:
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determining at least one second sensor corresponding to the at least one second 1-D position; determining at least one third 1-D position corresponding to the at least one determined second sensor based on signals of these first sensors by mutual-capacitance detection; and providing at least a 2-D position based on the at least one third 1-D position corresponding to the at least one second 1-D position.
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10. The device of claim 9, wherein the mutual-capacitance detection includes receiving signals of these first sensors while each of the at least one determined second sensor is provided with the driving signal.
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11. The device of claim 7, wherein the self-capacitance detection includes providing the driving signal to these first sensors and receiving signals of these first sensors.
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12. The device of claim 7, wherein the mutual-capacitance detection includes receiving signals of these second sensors while each the at least one determined first sensor is provided with the driving signal.
Specification