# US 2013/0155000 A1 · Touch sensor with reduced anti-touch effects

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- Number: US 2013/0155000 A1
- Document ID: US20130155000A1
- Status: Published application
- Kind: A1
- Application number: 13/330,257
- Filed: 2011-12-20
- Published: 2013-06-20
- Earliest claimed: 2011-12-20
- Assignees: Atmel Corporation
- Inventors: Matthew Trend; Samuel Brunet; David B. Guard; Luben H. Hristov
- Web page: https://patentgrep.com/patent/US20130155000A1

## CPC

- H03K 17/9622: {using a plurality of detectors, e.g. keyboard}
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- H03K 2017/9602: {characterised by the type or shape of the sensing electrodes}
- H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

In an embodiment, a system comprises a touch sensor. The touch sensor comprises an insulating substrate and a plurality of electrodes disposed on the insulating substrate. The plurality of electrodes comprises a drive line having a plurality of drive electrodes and a sense line having a plurality of sense electrodes. At least one of the electrodes comprises a first conductive material having a hole portion substantially free of the first conductive material.

## Claims

### Claim 1

A system comprising:
a touch sensor, wherein the touch sensor comprises:
an insulating substrate;
a plurality of electrodes disposed on the insulating substrate, the plurality of electrodes comprising a drive line having a plurality of drive electrodes and a sense line having a plurality of sense electrodes; and
wherein at least one of the electrodes comprises a first conductive material having a hole portion substantially free of the first conductive material.

### Claim 2 (depends on 1)

The system of claim 1, wherein the hole portion comprises a second conductive material electrically coupled to a ground node.

### Claim 3 (depends on 1)

The system of claim 1, wherein the hole portion comprises a ground area formed of the first conductive material and separated from the boundary of the at least one of the electrodes by a gap.

### Claim 4 (depends on 1)

The system of claim 1, wherein the hole portion comprises floating material, wherein the floating material is not electrically coupled directly to the at least one electrode comprising the first conductive material.

### Claim 5 (depends on 1)

The system of claim 1, wherein the hole portion comprises a second material and wherein the first conductive material and the second material are separated by a gap.

### Claim 6 (depends on 1)

The system of claim 1, wherein the at least one of the electrodes comprising the first conductive material is a drive electrode.

### Claim 7 (depends on 1)

The system of claim 1, wherein the at least one of the electrodes comprising the first conductive material is a sense electrode.

### Claim 8 (depends on 1)

The system of claim 1, wherein the at least one of the electrodes comprising the first conductive material has a snowflake pattern.

### Claim 9 (depends on 1)

The system of claim 1, wherein the at least one of the electrodes comprising the first conductive material has a diamond pattern.

### Claim 10

A system comprising:
a touch sensor, wherein the touch sensor comprises:
an insulating substrate;
a first sense line disposed on the insulating substrate, the sense line comprising a plurality of sense electrodes;
a first drive line disposed on the insulating substrate and arranged in a first plurality of segments, the first drive line comprising a first set of drive electrodes;
a second drive line disposed on the substrate and arranged in a second plurality of segments, the second drive line comprising a second set of drive electrodes; and
wherein a first segment of the first plurality of segments is disposed between a first and second segment of the second plurality of segments.

### Claim 11 (depends on 10)

The system of claim 10, wherein the first segment of the first plurality of segments is substantially parallel to a second segment of the first plurality of segments.

### Claim 12 (depends on 10)

The system of claim 10, wherein the first plurality of segments is less than the second plurality of segments.

### Claim 13 (depends on 10)

The system of claim 10, further comprising a third drive line disposed on the insulating substrate and arranged in a third plurality of segments, the third drive line comprising a third set of drive electrodes, wherein a second segment of the first plurality of segments is disposed between the first segment of the second plurality of segments and a first segment of the third plurality of segments.

### Claim 14 (depends on 10)

The system of claim 10, wherein the first sense line is arranged in a plurality of substantially parallel sense line segments.

### Claim 15 (depends on 10)

The system of claim 10, wherein at least one the drive electrodes in the first set of drive electrodes comprises conductive material formed in a diamond pattern.

### Claim 16 (depends on 10)

The system of claim 10, wherein at least one of the drive electrodes in the first set of drive electrodes comprises conductive material formed in a snowflake pattern.

### Claim 17 (depends on 10)

The system of claim 10, wherein at least one the sense electrodes in the plurality of sense electrodes comprises conductive material formed in a diamond pattern.

### Claim 18 (depends on 10)

The system of claim 10, wherein at least one the sense electrodes in the plurality of sense electrodes comprises conductive material formed in a snowflake pattern.

### Claim 19 (depends on 10)

The system of claim 10, wherein:
at least one of the drive electrodes in the first set of drive electrodes comprises a conductive material,
the conductive material comprises a hole portion substantially free of the conductive material; and
the hole portion comprises floating material, wherein the floating material is not electrically coupled directly to the at least one of the drive electrodes.

### Claim 20

A system comprising:
a touch sensor, wherein the touch sensor comprises:
an insulating substrate;
a plurality of electrodes disposed on the insulating substrate, the plurality of electrodes comprising a drive line having a plurality of drive electrodes and a sense line having a plurality of sense electrodes;
wherein a first conductive material is disposed between at least one of the drive electrodes and at least one of the sense electrodes, wherein the first conductive material is electrically coupled to a ground node.
