TOUCH PRESSURE DETECTABLE TOUCH INPUT DEVICE INCLUDING DISPLAY MODULE
First Claim
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1. A touch input device detecting a touch position and a touch pressure, the touch input device comprising:
- a display module which comprises a first layer made of glass or plastic and a second layer which is disposed under the first layer and is made of glass or plastic;
a plurality of touch electrodes which are formed within the display module and are for detecting the touch position and the touch pressure; and
a reference electrode which is disposed apart from the touch electrode;
wherein a drive signal is applied to the touch electrode and the touch position is detected by a sensing signal received from the touch electrode;
wherein an electrical signal which is changed by a capacitance between the touch electrode and the reference electrode is detected from the touch electrode;
wherein the capacitance is changed by a change of a distance between the touch electrode and the reference electrode;
wherein the distance between the touch electrode and the reference electrode is changed by a bend of the display module; and
wherein the touch pressure is detected based on the capacitance.
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Abstract
A touch input device detecting a touch position and a touch pressure may be provided. The touch input device includes a display module which includes a first layer made of glass or plastic and a second layer which is disposed under the first layer and is made of glass or plastic; a plurality of touch electrodes which are formed within the display module and are for detecting the touch position and the touch pressure; and a reference electrode which is disposed apart from the touch electrode.
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Citations
22 Claims
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1. A touch input device detecting a touch position and a touch pressure, the touch input device comprising:
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a display module which comprises a first layer made of glass or plastic and a second layer which is disposed under the first layer and is made of glass or plastic; a plurality of touch electrodes which are formed within the display module and are for detecting the touch position and the touch pressure; and a reference electrode which is disposed apart from the touch electrode; wherein a drive signal is applied to the touch electrode and the touch position is detected by a sensing signal received from the touch electrode; wherein an electrical signal which is changed by a capacitance between the touch electrode and the reference electrode is detected from the touch electrode; wherein the capacitance is changed by a change of a distance between the touch electrode and the reference electrode; wherein the distance between the touch electrode and the reference electrode is changed by a bend of the display module; and wherein the touch pressure is detected based on the capacitance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A touch input device detecting a touch position and a touch pressure, the touch input device comprising:
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a display module which comprises a first layer made of glass or plastic and a second layer which is disposed under the first layer and is made of glass or plastic; a first electrode for detecting the touch position and the touch pressure and a second electrode for detecting the touch position, which are formed within the display module; and a reference electrode which is disposed apart from the first electrode; wherein a drive signal is applied to any one of the first electrode and the second electrode, and the touch position is detected by a sensing signal received from the other of the first electrode and the second electrode; wherein an electrical signal which is changed by a capacitance between the first electrode and the reference electrode is detected from the first electrode; wherein the capacitance is changed by a change of a distance between the first electrode and the reference electrode; wherein the distance between the first electrode and the reference electrode is changed by a bend of the display module; and wherein the touch pressure is detected based on the capacitance. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification