# US 2021/0240297 A1 · Display device

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- Number: US 2021/0240297 A1
- Document ID: US20210240297A1
- Status: Published application
- Kind: A1
- Application number: 17/239,043
- Filed: 2021-04-23
- Published: 2021-08-05
- Earliest claimed: 2018-09-11
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Naoki Takada
- Web page: https://patentgrep.com/patent/US20210240297A1

## CPC

- G06F 3/0418: {for error correction or compensation, e.g. based on parallax, calibration or alignment}
- G06F 3/04184: {Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column 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 2203/04107: Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

According to one embodiment, a display device includes a plurality of first electrodes overlap a display area, extend in a first direction, and are arranged in a second direction, a plurality of second electrodes overlap the display area, extend in the second direction, and are arranged in the first direction, a plurality of conductive lines are provided along the first electrodes, and connected to the second electrodes, respectively, and a touch detection driver is configured to detect contact or approach of an object with respect to the display area. In a case where a distance between a conductive line and one of the first electrodes near the conductive line is less than a predetermined value, a shielding portion is formed in the second electrode.

## Claims

### Claim 1

An electronic device with touch sensing function comprising:
a first substrate;
a first driving electrode extending in a first direction on the first substrate;
a second driving electrode having a longer length of the first driving electrode on the first substrate;
a second substrate facing the first substrate;
a first detecting electrode extending in a second direction on the second substrate and intersecting the first and the second driving electrodes;
a second detecting electrode having a shorter length of the first detecting electrode on the second substrate and intersecting the first and the second driving electrodes;
a shielding portion formed at the end of the first detecting electrode and as a part of the first detecting electrode;
a first conductive line arranged along the first driving electrode and connected to the shielding portion; and
a second conductive line arranged along and outside the first conductive line and connected to the second detecting electrode.

### Claim 2 (depends on 1)

The electronic device with touch sensing function of claim 1, wherein
the shielding portion overlaps the end of the first driving electrode.

### Claim 3 (depends on 1)

The electronic device with touch sensing function of claim 1, wherein
the shielding portion is a rectangular shape.

### Claim 4 (depends on 1)

The electronic device with touch sensing function of claim 1, wherein
the second conductive line is longer than the first conductive line.

### Claim 5 (depends on 1)

The electrode device with touch sensing function of claim 1, wherein
the shape of both the first substrate and the second substrate is a shape of a polygon more than a pentagon.

### Claim 6 (depends on 5)

The electrode device with touch sensing function of claim 5, wherein
the polygon is a hexagon.

### Claim 7

An electronic device with touch sensing function comprising:
a first substrate having a shape of a polygon more than a pentagon;
a first driving electrode with a length extending in a first direction on the first substrate;
a second driving electrode with a different length of the first driving electrode arranged in parallel with the first driving electrode on the first substrate;
a second substrate facing the first substrate and having the same shape as the first substrate;
a first detecting electrode with a length extending in a second direction on the second substrate and intersecting the first and the second driving electrodes;
a second detecting electrode with a different length of the first detecting electrode arranged in parallel with the second detecting electrode on the second substrate and intersecting the first and the second driving electrodes;
a shielding portion formed at the end of the first detecting electrode and as a part of the first detecting electrode;
a first conductive line arranged along the first driving electrode and connected to the shielding portion; and
a second conductive line arranged along and outside the first conductive line and connected to the second detecting electrode.

### Claim 8 (depends on 7)

The electronic device with touch sensing function of claim 7, wherein
the shielding portion overlaps the end of the first driving electrode.

### Claim 9 (depends on 7)

The electronic device with touch sensing function of claim 7, wherein
the shielding portion is a rectangular shape.

### Claim 10 (depends on 7)

The electronic device with touch sensing function of claim 7, wherein
the second conductive line is longer than the first conductive line.

### Claim 11 (depends on 7)

The electronic device with touch sensing function of claim 7, wherein
the length of the first driving electrode is shorter than the length of the second driving electrode and the length of the first detecting electrode is longer than the length of the second detecting electrode.

### Claim 12 (depends on 11)

The electronic device with touch sensing function of claim 11, wherein
the second conductive line is longer than the first conductive line.

### Claim 13 (depends on 12)

The electronic device with touch sensing function of claim 12, wherein
the shielding portion overlaps the end of the first driving electrode.

### Claim 14 (depends on 13)

The electronic device with touch sensing function of claim 13, wherein
the shielding portion is a rectangular shape.

### Claim 15 (depends on 7)

The electronic device with touch sensing function of claim 7, wherein
the polygon is a hexagon,
the length of the first driving electrode is shorter than the length of the second driving electrode, and the length of the first detecting electrode is longer than the length of the second detecting electrode.
