Touch detection method and touch detector performing the same
First Claim
1. A touch detector which detects a touch on a touch sensor panel including a plurality of first electrodes, a plurality of second electrodes and a plurality of third electrodes, wherein the plurality of first electrodes and the plurality of second electrodes are formed in different layers with an insulation layer placed therebetween, and the plurality of third electrodes are formed in the same layer in which the plurality of first electrodes are formed, the touch detector comprising:
- a driving signal supplier which applies a driving signal to the plurality of first electrodes; and
a sensing unit which receives a first signal including information on a capacitance changing depending on the touch on a touch surface of the touch sensor panel from the plurality of second electrodes formed in a different layer from the layer in which the plurality of first electrodes are formed, and receives a second signal including information on a capacitance changing depending on the touch on a touch surface of the touch sensor panel from the plurality of third electrodes formed in the same layer in which the plurality of first electrodes are formed,wherein the plurality of second electrodes are separate and distinct from the plurality of third electrodes, andwherein the sensing unit detects a touch pressure from the second signal and a touch position on the touch surface of the touch sensor panel from the first signal.
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Accused Products
Abstract
Disclosed is a touch detector which detects a touch on a touch sensor panel including a plurality of first electrodes, a plurality of second electrodes and a plurality of third electrodes. The touch detector includes: a driving signal supplier which applies a driving signal to the plurality of first electrodes; and a sensing unit which receives a first signal including information on a capacitance changing depending on the touch on a touch surface of the touch sensor panel from the plurality of second electrodes. The sensing unit detects a touch pressure and a touch position on the touch surface of the touch sensor panel.
16 Citations
14 Claims
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1. A touch detector which detects a touch on a touch sensor panel including a plurality of first electrodes, a plurality of second electrodes and a plurality of third electrodes, wherein the plurality of first electrodes and the plurality of second electrodes are formed in different layers with an insulation layer placed therebetween, and the plurality of third electrodes are formed in the same layer in which the plurality of first electrodes are formed, the touch detector comprising:
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a driving signal supplier which applies a driving signal to the plurality of first electrodes; and a sensing unit which receives a first signal including information on a capacitance changing depending on the touch on a touch surface of the touch sensor panel from the plurality of second electrodes formed in a different layer from the layer in which the plurality of first electrodes are formed, and receives a second signal including information on a capacitance changing depending on the touch on a touch surface of the touch sensor panel from the plurality of third electrodes formed in the same layer in which the plurality of first electrodes are formed, wherein the plurality of second electrodes are separate and distinct from the plurality of third electrodes, and wherein the sensing unit detects a touch pressure from the second signal and a touch position on the touch surface of the touch sensor panel from the first signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for detecting a touch position and a touch pressure in a capacitive touch input device including a touch sensor panel including a plurality of first electrodes, a plurality of second electrodes and a plurality of third electrodes wherein the plurality of first electrodes and the plurality of second electrodes are formed in different layers with an insulation layer placed therebetween and the plurality of third electrodes are formed in the same layer in which the plurality of first electrodes are formed, and a driving signal supplier, the method comprising:
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applying a driving signal to the plurality of first electrodes of the touch sensor panel; receiving a first signal including information on a capacitance changing depending on the touch input on a touch surface of the touch sensor panel from the plurality of second electrodes formed in a different layer from the layer in which the plurality of first electrodes are formed, and a second signal including information on a capacitance changing depending on the touch input on a touch surface of the touch sensor panel from the plurality of third electrodes formed in the same layer in which the plurality of first electrodes are formed; and detecting a touch pressure from the second signal and a touch position on the touch surface of the touch sensor panel from the first signal, wherein the plurality of second electrodes are separate and distinct from the plurality of third electrodes. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification