# US 10,768,761 B2 · Detection device

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- Number: US 10,768,761 B2
- Document ID: US10768761B2
- Status: Granted
- Kind: B2
- Application number: 16/394,559
- Filed: 2019-04-25
- Published: 2019-08-15
- Granted: 2020-09-08
- Earliest claimed: 2015-04-14
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Koji Ishizaki; Daisuke Sonoda; Toshimasa Ishigaki
- Web page: https://patentgrep.com/patent/US10768761B2

## CPC

- H05K 3/28: Applying non-metallic protective coatings {(H05K3/0091 takes precedence; methods for intermediate insulating layers for build-up multilayer circuits H05K3/4673)}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/044: by capacitive means
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- 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}
- G02F 1/13338: {Input devices, e.g. touch panels}
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- H05K 1/11: Printed elements for providing electric connections to or between printed circuits
- H05K 2201/09381: Shape of non-curved single flat metallic pad, land or exposed part thereof; Shape of electrode of leadless component
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

A detection device includes a first substrate including a first region, a second region and a third region, the second region arranged between the first region and the third region; a detection electrode arranged on the first substrate; a first electrode coupled to the detection electrode, continuously formed from the first region to the third region in a first direction on the first substrate, and including a plurality of concave portions in the second region; and a protective layer formed on the first electrode in the first region, wherein the protective layer is formed on a first one of the concave portions in the second region, wherein the protective film is not formed on a second one of the concave portions in the second region, the second one of the concave portions is arranged nearer to the third region than the first one of the concave portions.

## Claims

### Claim 1

A detection device comprising:
a first substrate including a first region, a second region and a third region, the second region arranged between the first region and the third region;
a detection electrode arranged on the first substrate;
a first electrode coupled to the detection electrode, continuously formed from the first region to the third region in a first direction on the first substrate, and including a plurality of concave portions in the second region; and
a protective layer formed on the first electrode in the first region,
wherein the protective layer is formed on a first one of the concave portions in the second region,
wherein the protective film is not formed on a second one of the concave portions in the second region, the second one of the concave portions is arranged nearer to the third region than the first one of the concave portions.

### Claim 2 (depends on 1)

The detection device according to claim 1, wherein at least one of the concave portions has a quadrangle shape.

### Claim 3 (depends on 1)

The detection device according to claim 1, wherein at least one of the concave portions has a round shape.

### Claim 4 (depends on 1)

The detection device according to claim 1, wherein the concave portions include a first concave portion and a second concave portion adjacent to the first concave portion in a second direction crossing to the first direction.

### Claim 5 (depends on 4)

The detection device according to claim 4,
wherein the concave portions include a third concave portion,
wherein the third concave portion is adjacent to the first concave portion in the first direction, and
wherein the third concave portion is arranged between the first concave portion and the second concave portion in the second direction.

### Claim 6 (depends on 1)

The detection device according to claim 1,
wherein the concave portions include a first concave portion, a second concave portion and a third concave portion,
wherein the second concave portion is arranged between the first concave portion and the third concave portion in the first direction, and
wherein, in a second direction crossing to the first direction, a center position of the first concave portion is different from a center position of the second concave portion.

### Claim 7 (depends on 1)

The detection device according to claim 1, wherein the concave portions include a first concave portion and a second concave portion, and wherein, in a second direction crossing to the first direction, a width of the first concave portion is different from a width of the second concave portion.

### Claim 8 (depends on 1)

The detection device according to claim 1, wherein the concave portions including a first concave portion extending to the first direction and a second concave portion extending to a second direction crossing to the first direction.

### Claim 9

A detection device comprising:
a first substrate including a first region, a second region and a third region, the second region arranged between the first region and the third region;
a detection electrode arranged on the first substrate;
a first electrode coupled to the detection electrode, continuously formed from the first region to the third region in the first direction on the first substrate, and including a plurality of concave portions, a plurality of first portions, and a plurality of second portions in the second region, the first portions extending in the first direction and arranged apart from each other in a second direction crossing to the first direction, the second portions extending in the second direction and arranged apart from each other in the first direction, the first and second portions being located outside the concave portions; and
a protective layer formed on the first electrode in the first region,
wherein the protective layer is formed on a first one of a plurality of projecting portions, the projecting portions including both the first portions and the second portions,
wherein the protective layer is not formed on a second one of the projecting portions, the second one is arranged nearer to the third region than the first one is.

### Claim 10 (depends on 9)

The detection device according to claim 9,
wherein the first electrode includes a plurality of frame portions formed by two adjacent first portions of a group of the first portions, and two adjacent second portions of a group of the second portions.

### Claim 11 (depends on 10)

The detection device according to claim 10,
wherein the frame portions include a first frame portion and a frame portion adjacent to the first frame portion in the second direction.

### Claim 12 (depends on 11)

The detection device according to claim 11,
wherein the frame portions include a third frame portion, wherein the third frame portion is adjacent to the first
frame portion in the first direction, and
wherein the third frame portion is arranged between the first frame portion and the second frame portion in the second direction.

### Claim 13 (depends on 10)

The detection device according to claim 10,
wherein the frame portions include a first frame portion, a second frame portion and a third frame portion,
wherein the second frame portion is arranged between the first frame portion and the third frame portion in the first direction, and
wherein, a center position of the first frame portion is different from a center position of the frame concave portion in the second direction.

### Claim 14 (depends on 10)

The detection device according to claim 10,
wherein the frame portions include a first frame portion and a second frame portion, and
wherein a width of the first frame portion is different from a width of the second frame portion in the second direction.

### Claim 15

A detection device comprising:
a first substrate including a first region, a second region and a third region, the second region arranged between the first region and the third region;
a detection electrode arranged on the first substrate; a first electrode coupled to the detection electrode and continuously formed from the first region to the third region
in the first direction on the first substrate; and
a protective layer formed on the first electrode in the first region,
wherein the first electrode includes a first region portion arranged in the first region, a second region portion arranged in the second region, and a third region portion arranged in the third region,
wherein the second region portion includes a plurality of concave portions, a plurality of first portions, and a plurality of second portions, the first portions extending in the first direction and arranged apart from each other in a second direction crossing to the first direction, the second portions extending in the second direction and arranged apart from each other in the first direction, the first and second portions being located outside the concave portions,
wherein a width of the first region portion is smaller than a width of the third region portion in the second direction, and
wherein a width of each of the first portions is smaller than a width of the first region portion.

### Claim 16 (depends on 15)

The detection device according to claim 15,
wherein the first electrode includes a plurality of frame portions formed by two adjacent first portions of a group of the first portions, and two adjacent second portions of a group of the second portions.

### Claim 17 (depends on 16)

The detection device according to claim 16,
wherein the frame portions include a first frame portion and a frame portion adjacent to the first frame portion in the second direction.

### Claim 18 (depends on 17)

The detection device according to claim 17,
wherein the frame portions include a third frame portion, wherein the third frame portion is adjacent to the first frame portion in the first direction, and
wherein the third frame portion is arranged between the first frame portion and the second frame portion in the second direction.

### Claim 19 (depends on 16)

The detection device according to claim 16,
wherein the frame portions include a first frame portion, a second frame portion and a third frame portion,
wherein the second frame portion is arranged between the first frame portion and the third frame portion in the first direction, and
wherein, a center position of the first frame portion is different from an center position of the frame concave portion in the second direction.

### Claim 20 (depends on 16)

The detection device according to claim 16,
wherein the frame portions include a first frame portion and a second frame portion, and
wherein a width of the first frame portion is different from a width of the second frame portion in the second direction.
