TOUCH SENSING APPARATUS WITH PARASITIC CAPACITANCE PREVENTION STRUCTURE
First Claim
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1. A touch sensing apparatus, comprising:
- a first sensing electrode where a touch generates a sensing signal;
a second sensing electrode superimposed onto the first sensing electrode with an insulating layer interposed between the first sensing electrode and the second sensing electrode; and
a buffer to electrically connect the first sensing electrode and the second sensing electrode.
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Abstract
The present invention relates to a touch sensing apparatus. The touch sensing apparatus of the present invention includes a first sensing electrode arranged on a rear surface of a window to sense the touch of a user on the window covering a display screen, a second sensing electrode superimposed onto the first sensing electrode with an insulating layer interposed therebetween, and a buffer for transmitting voltage of the first sensing electrode side to the second sensing electrode side. The touch sensing apparatus of the present invention is capable of effectively cutting off noise signals generated from a display module and keeping touch sensitivity at a high level.
38 Citations
20 Claims
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1. A touch sensing apparatus, comprising:
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a first sensing electrode where a touch generates a sensing signal; a second sensing electrode superimposed onto the first sensing electrode with an insulating layer interposed between the first sensing electrode and the second sensing electrode; and a buffer to electrically connect the first sensing electrode and the second sensing electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A noise signal shielding apparatus for shielding against a noise signal with respect to at least one sensing electrode provided to sense a touch applied to a touch sensing panel, the noise signal shielding apparatus comprising:
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an insulating layer arranged on a rear surface of the sensing electrode; a shielding electrode arranged on a rear surface of the insulating layer; and a buffer to transmit a voltage of the sensing electrode to the shielding electrode. - View Dependent Claims (12, 13, 14)
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15. A touch sensing apparatus, comprising:
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a first sensing electrode where a touch generates a sensing signal; a second sensing electrode arranged adjacent to the first sensing electrode; and a buffer to transmit a voltage of the first sensing electrode to the second sensing electrode. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification