Touch panel
First Claim
1. A touch panel, comprising:
- a substrate;
a touch-sensing circuit disposed on the substrate;
a plurality of sensing signal transmission wires disposed on the substrate and electrically connected to the touch-sensing circuit;
a capacitance compensation conductor disposed over the sensing signal transmission wires, wherein capacitance of each of the sensing signal transmission wires is C1, and coupling capacitance between each of the sensing signal transmission wires and the capacitance compensation conductor is C2; and
a sensing signal readout circuit electrically connected to the sensing signal transmission wires, wherein in each of the sensing signal transmission wires, variation of summation of the capacitances C1 and C2 is less than a readout resolution of the sensing signal readout circuit.
1 Assignment
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Accused Products
Abstract
A touch panel includes a substrate, a touch-sensing circuit, a plurality of sensing signal transmission wires, a capacitance compensation conductor, and a sensing signal readout circuit. The touch-sensing circuit is disposed on the substrate. The sensing signal transmission wires are disposed on the substrate and electrically connected to the touch-sensing circuit. The capacitance compensation conductor is disposed over the sensing signal transmission wires. Capacitance of each sensing signal transmission wire is C1, and coupling capacitance between each sensing signal transmission wire and the capacitance compensation conductor is C2. The sensing signal readout circuit is electrically connected to the sensing signal transmission wires. In each sensing signal transmission wire, variation of summation of C1 and C2 is less than a readout resolution of the sensing signal readout circuit. Another touch panel using an electrostatic discharge conductor to adjust varied capacitances of sensing signal transmission wires is also provided.
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Citations
17 Claims
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1. A touch panel, comprising:
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a substrate; a touch-sensing circuit disposed on the substrate; a plurality of sensing signal transmission wires disposed on the substrate and electrically connected to the touch-sensing circuit; a capacitance compensation conductor disposed over the sensing signal transmission wires, wherein capacitance of each of the sensing signal transmission wires is C1, and coupling capacitance between each of the sensing signal transmission wires and the capacitance compensation conductor is C2; and a sensing signal readout circuit electrically connected to the sensing signal transmission wires, wherein in each of the sensing signal transmission wires, variation of summation of the capacitances C1 and C2 is less than a readout resolution of the sensing signal readout circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A touch panel, comprising:
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a substrate; a touch-sensing circuit disposed on the substrate, wherein the touch-sensing circuit comprises a plurality of sensing series; a plurality of sensing signal transmission wires disposed on the substrate and electrically connected to the sensing series; a plurality of electrostatic discharge conductors disposed on the substrate and electrically connected to the sensing series; an electrostatic charge releasing wire disposed on the substrate, wherein capacitance of each of the sensing signal transmission wires is C1, and coupling capacitance between each of the electrostatic discharge conductors and the electrostatic charge releasing wire is C3; and a sensing signal readout circuit electrically connected to the sensing signal transmission wires, wherein in each of the electrostatic discharge conductors and each of the sensing signal transmission wires connected to one of the sensing series, variation of summation of the capacitances C1 and C3 is less than a readout resolution of the sensing signal readout circuit. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification