Touch sensing apparatus and method for detecting approach
First Claim
1. A touch sensing apparatus comprising:
- an approach sensing electrode unit comprising a plurality of first approach sensing electrode arrays disposed on a substrate and a plurality of second approach sensing arrays disposed adjacent to the plurality of first approach sensing electrode arrays;
a voltage supply unit to supply a voltage to at least one of the plurality of first approach sensing electrode arrays and the plurality of second approach sensing electrode arrays;
a signal generation unit to generate an approach sensing signal by detecting a variation of capacitance generated between the plurality of first approach sensing electrode arrays and the plurality of second approach sensing electrode arrays, the variation of capacitance occurring in a 3-dimensional (3D) approach sensing region; and
an information generation unit to generate contact information corresponding to the approach sensing signal generated by the signal generation unit,wherein the plurality of second approach sensing electrode arrays intersect the plurality of first approach sensing electrode arrays, and a through hole is formed in the plurality of second approach sensing electrode arrays at intersection positions with respect to the plurality of first approach sensing electrode arrays.
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Abstract
A touch sensing apparatus includes an approach sensing electrode unit including a plurality of first approach sensing electrode arrays disposed on a substrate and a plurality of second approach sensing arrays disposed adjacent to the first approach sensing electrode arrays, a voltage supply unit to supply a voltage to any of the first approach sensing electrode arrays and the second approach sensing electrode arrays, a signal generation unit to generate an approach sensing signal by detecting a variation of capacitance generated between the first approach sensing electrode arrays and the second approach sensing electrode arrays, the variation of capacitance occurring in a 3-dimensional (3D) approach sensing region, and an information generation unit to generate contact information corresponding to the approach sensing signal generated by the signal generation unit.
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Citations
21 Claims
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1. A touch sensing apparatus comprising:
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an approach sensing electrode unit comprising a plurality of first approach sensing electrode arrays disposed on a substrate and a plurality of second approach sensing arrays disposed adjacent to the plurality of first approach sensing electrode arrays; a voltage supply unit to supply a voltage to at least one of the plurality of first approach sensing electrode arrays and the plurality of second approach sensing electrode arrays; a signal generation unit to generate an approach sensing signal by detecting a variation of capacitance generated between the plurality of first approach sensing electrode arrays and the plurality of second approach sensing electrode arrays, the variation of capacitance occurring in a 3-dimensional (3D) approach sensing region; and an information generation unit to generate contact information corresponding to the approach sensing signal generated by the signal generation unit, wherein the plurality of second approach sensing electrode arrays intersect the plurality of first approach sensing electrode arrays, and a through hole is formed in the plurality of second approach sensing electrode arrays at intersection positions with respect to the plurality of first approach sensing electrode arrays. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of sensing an approach by a touch sensing apparatus, comprising:
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supplying a voltage to at least one of a plurality of first approach sensing electrode arrays disposed on a substrate and a plurality of second approach sensing arrays disposed adjacent to the plurality of first approach sensing electrode arrays; detecting a variation of capacitance generated between the plurality of first approach sensing electrode arrays and the plurality of second approach sensing electrode arrays, the variation of capacitance occurring in a 3-dimensional (3D) approach sensing region; generating an approach sensing signal denoting detection of approach within the 3D approach sensing region using the detected capacitance; and generating contact information corresponding to the generated approach sensing signal, wherein the plurality of second approach sensing electrode arrays intersect the plurality of first approach sensing electrode arrays, and a through hole is formed in the plurality of second approach sensing electrode arrays at intersection positions with respect to the plurality of first approach sensing electrode arrays. - View Dependent Claims (12, 13, 14, 15)
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16. A touch sensing apparatus comprising:
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approach sensing electrode arrays disposed on a substrate; a signal generation unit to generate an approach sensing signal by detecting a variation of capacitance generated between the approach sensing electrode arrays when an object approaches the approach sensing electrode arrays, the variation of capacitance occurring in a 3-dimensional (3D) approach sensing region; and an information generation unit to generate contact information corresponding to the approach sensing signal generated by the signal generation unit, wherein the approach sensing electrode arrays comprise; a plurality of first electrode pads arranged at predetermined intervals along a first axis of the substrate; a plurality of second electrode pads arranged at predetermined intervals along a second axis of the substrate; and a plurality of first sub electrode pads connected to opposite sides of each of the plurality of first electrode pads via a plurality of first sub connection leads, the plurality of first sub electrode pads being disposed parallel to the plurality of first electrode pads. - View Dependent Claims (17, 18, 19, 21)
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20. A method of sensing an approach by a touch sensing apparatus, comprising:
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detecting a variation of capacitance generated between approach sensing electrode arrays disposed on a substrate when an object approaches the approach sensing electrode arrays, the variation of capacitance occurring in a 3-dimensional (3D) approach sensing region; generating an approach sensing signal denoting detection of approach within the 3D approach sensing region using the detected capacitance; and generating contact information corresponding to the generated approach sensing signal, wherein the approach sensing electrode arrays comprise; a plurality of first electrode pads arranged at predetermined intervals along a first axis of the substrate; a plurality of second electrode pads arranged at predetermined intervals along a second axis of the substrate; and a plurality of first sub electrode pads connected to opposite sides of each of the plurality of first electrode pads via a plurality of first sub connection leads, the plurality of first sub electrode pads being disposed parallel to the plurality of first electrode pads.
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Specification