# US 2022/0035501 A1 · Position detection sensor and electronic device

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- Number: US 2022/0035501 A1
- Document ID: US20220035501A1
- Status: Published application
- Kind: A1
- Application number: 17/499,789
- Filed: 2021-10-12
- Published: 2022-02-03
- Earliest claimed: 2019-07-05
- Assignees: Wacom Co., Ltd.
- Applicants: Wacom Co., Ltd.
- Inventors: Takeshi KOBORI
- Web page: https://patentgrep.com/patent/US20220035501A1

## CPC

- G06F 3/04162: {for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware}
- G06F 3/03545: {Pens or stylus}
- G06F 3/0383: {Signal control means within the pointing device}
- G06F 3/0441: {using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G06F 3/0447: {Position sensing using the local deformation of sensor cells}
- G06F 3/0448: {Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality}
- G06F 3/046: by electromagnetic means
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A position detection sensor allows for providing, on a back side of the position detection sensor, a component that needs to be accessed from a front side thereof. The position detection sensor includes a plurality of position detection electrodes arranged on an insulating substrate, wherein a region provided with the plurality of position detection electrodes forms an effective detection region for detecting an indicated position of a position indicator. A through hole in a predetermined shape is formed in the insulating substrate in the effective detection region. The position detection electrodes are arranged to bypass the through hole along the shape of the through hole at an area intersecting the through hole.

## Claims

### Claim 1

A position detection sensor including a plurality of position detection electrodes arranged on an insulating substrate, wherein a region provided with the plurality of position detection electrodes forms an effective detection region for detecting an indicated position of a position indicator, wherein
a through hole having a predetermined shape is formed in the insulating substrate in the effective detection region, and
the position detection electrodes are arranged to bypass the through hole along the shape of the through hole at an area intersecting the through hole.

### Claim 2 (depends on 1)

The position detection sensor according to claim 1, wherein
the plurality of position detection electrodes are arranged in a predetermined direction at a predetermined array pitch, and
a size of the through hole is greater than the predetermined array pitch.

### Claim 3 (depends on 1)

The position detection sensor according to claim 1, wherein a portion of the position detection electrode bypassing the through hole is configured to take the shortest bypass route.

### Claim 4 (depends on 2)

The position detection sensor according to claim 2, wherein the plurality of the position detection electrodes adjacent to each other at portions bypassing the through hole by taking similar bypass routes are arranged close to each other, regardless of the array pitch.

### Claim 5 (depends on 1)

The position detection sensor according to claim 1, wherein
the position detection sensor detects a coordinate position in a first direction and a coordinate position in a second direction orthogonal to the first direction in the effective region,
the position detection electrodes include a plurality of first direction electrodes arranged in the second direction and configured to detect the coordinate position in the first direction and a plurality of second direction electrodes arranged in the first direction and configured to detect the coordinate position in the second direction, and
the first direction electrodes and the second direction electrodes are formed by arranging conductors on both surfaces of the insulating substrate.

### Claim 6 (depends on 1)

The position detection sensor according to claim 1, wherein each of the plurality of position detection electrodes is a loop coil.

### Claim 7 (depends on 6)

The position detection sensor according to claim 6, wherein the position detection electrode intersecting the through hole is formed by deforming a shape of the electrode conductor around the through hole so as to compensate for an increase or decrease in an area surrounded by the loop coil caused by the electrode conductor bypassing the through hole.

### Claim 8 (depends on 6)

The position detection sensor according to claim 6, wherein the position detection electrode intersecting the through hole is deformed at portions just before and/or after the position detection electrode intersects the through hole, so as to reduce a change in an area surrounded by the loop coil due to deformation of the electrode conductor bypassing the through hole.

### Claim 9 (depends on 1)

The position detection sensor according to claim 1, wherein the position detection electrode includes the electrode conductor in a linear shape that is arranged to bypass the through hole to form a projection portion with respect to the linear shape.

### Claim 10 (depends on 1)

The position detection sensor according to claim 1, wherein the position detection electrodes are loop coils having an even number of turns, and a bypassing direction along the shape of the through hole of one half of the even number of turns is different from a bypassing direction along the shape of the through hole of another half of the even number of turns.

### Claim 11 (depends on 7)

The position detection sensor according to claim 7, wherein, in the position detection electrodes, a line width of the electrode conductor at a portion bypassing the through hole along the shape of the through hole is thinner than a line width of other portions.

### Claim 12 (depends on 1)

The position detection sensor according to claim 1, wherein the position detection electrodes are linear electrodes, and the plurality of the position detection electrodes are arrayed in a direction intersecting the linear electrodes.

### Claim 13

An electronic device comprising:
a position detection sensor arranged in a housing;
an operation input surface of the position detection sensor provided on an upper side of the position detection sensor; and
a predetermined component arranged on a lower side of the position detection sensor, wherein
the position detection sensor includes a plurality of position detection electrodes arranged on an insulating substrate, wherein a region provided with the plurality of position detection electrodes forms an effective detection region for detecting an input indication on the operation input surface for detecting a position of a position indicator,
a through hole having a predetermined shape that corresponds to the predetermined component is formed in the insulating substrate at a position corresponding to a position of the predetermined component in the effective detection region, and
the position detection electrodes are arranged to bypass the through hole along the shape of the through hole at an area intersecting the through hole.

### Claim 14 (depends on 13)

The electronic device according to claim 13, further comprising:
a position detection device that detects a position indicated by the position indicator via the operation input surface based on signals from the plurality of position detection electrodes of the position detection sensor, wherein
the position detection device includes a correction circuit that corrects the signal from the position detection electrode intersecting the through hole.

### Claim 15 (depends on 13)

The electronic device according to claim 13, further comprising:
a position detection device that detects a position indicated by the position indicator via the operation input surface based on signals from the plurality of position detection electrodes of the position detection sensor, wherein
the position detection device includes a position correction circuit that detects a position near the through hole or in the through hole as indicated by the position indicator via the operation input surface.
