# US 11,907,455 B2 · Input sensing part and display device including the same

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- Number: US 11,907,455 B2
- Document ID: US11907455B2
- Status: Granted
- Kind: B2
- Application number: 17/895,251
- Filed: 2022-08-25
- Published: 2023-06-01
- Granted: 2024-02-20
- Earliest claimed: 2021-11-26
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Hyun Jae Lee; Sunghwan Kim
- Web page: https://patentgrep.com/patent/US11907455B2

## CPC

- 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 3/0443: {using a single layer of sensing electrodes}
- H01Q 1/22: by structural association with other equipment or articles
- H01Q 1/243: {with built-in antennas}
- H01Q 1/38: formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142)}
- H01Q 1/48: Earthing means; Earth screens; Counterpoises
- H01Q 9/0407: {Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40)}
- H10K 59/40: OLEDs integrated with touch screens
- 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}
- G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

Disclosed is an input sensing part that includes sensing electrodes disposed in an active area, a first ground pattern disposed in an inactive area around the active area, a first ground pad disposed in the inactive area and electrically connected to the first ground pattern, a first antenna pattern insulated from the sensing electrodes and disposed in the active area, a first signal pad that extends from the first antenna pattern and disposed in the inactive area, a 1-1-th ground pad disposed adjacent to the first signal pad and electrically connected to the first ground pattern, and a 1-2-th ground pad disposed adjacent to the first signal pad.

## Claims

### Claim 1

An input sensing part comprising:
sensing electrodes disposed in an active area;
a first ground pattern disposed in an inactive area around the active area;
a first ground pad disposed in the inactive area and electrically connected to the first ground pattern;
a first antenna pattern insulated from the sensing electrodes and disposed in the active area;
a first signal pad extending from the first antenna pattern and disposed in the inactive area;
a 1-1-th ground pad disposed adjacent to the first signal pad and electrically connected to the first ground pattern; and
a 1-2-th ground pad disposed adjacent to the first signal pad.

### Claim 2 (depends on 1)

The input sensing part of claim 1, wherein the first antenna pattern is disposed between a number of the sensing electrodes.

### Claim 3 (depends on 1)

The input sensing part of claim 1, wherein the first ground pattern, the first signal pad, and the 1-1-th ground pad are disposed on a same layer.

### Claim 4 (depends on 3)

The input sensing part of claim 3, wherein the 1-1-th ground pad extends from the first ground pattern and is integral with the first ground pattern.

### Claim 5 (depends on 1)

The input sensing part of claim 1, further comprising:
a second ground pattern disposed in the inactive area;
a second ground pad disposed in the inactive area and electrically connected to the second ground pattern;
a second antenna pattern insulated from the sensing electrodes and disposed in the active area;
a second signal pad extending from the second antenna pattern and disposed in the inactive area;
a 2-1-th ground pad disposed adjacent to the second signal pad and electrically connected to the second ground pattern; and
a 2-2-th ground pad disposed adjacent to the second signal pad.

### Claim 6 (depends on 5)

The input sensing part of claim 5, wherein the 2-1-th ground pad extends from the second ground pattern and is integral with the second ground pattern.

### Claim 7 (depends on 5)

The input sensing part of claim 5, further comprising:
a third ground pattern electrically connected to the 1-2-th ground pad and the 2-2-th ground pad.

### Claim 8 (depends on 7)

The input sensing part of claim 7, wherein the 1-2-th ground pad and the 2-2-th ground pad extend from the third ground pattern and are integral with the third ground pattern.

### Claim 9 (depends on 7)

The input sensing part of claim 7, wherein
the 1-1-th ground pad, the 1-2-th ground pad, the 2-1-th ground pad, the 2-2-th ground pad, the first ground pattern, the second ground pattern, and the third ground pattern are disposed on different layers, and
the 1-1-th ground pad, the 1-2-th ground pad, the 2-1-th ground pad, and the 2-2-th ground pad are electrically connected to the first ground pattern, the second ground pattern, and the third ground pattern.

### Claim 10 (depends on 5)

The input sensing part of claim 5, wherein the second antenna pattern is disposed between a number of the sensing electrodes.

### Claim 11 (depends on 5)

The input sensing part of claim 5, wherein the second antenna pattern includes:
a 2-1-th antenna pattern disposed between a number of the sensing electrodes;
a 2-2-th antenna pattern disposed in at least one opening of at least one of the sensing electrodes; and
a bridge pattern electrically connecting the 2-1-th antenna pattern and the 2-2-th antenna pattern.

### Claim 12 (depends on 1)

The input sensing part of claim 1, further comprising:
dummy patterns disposed between the sensing electrodes and in openings of the sensing electrodes.

### Claim 13 (depends on 1)

The input sensing part of claim 1, further comprising:
a base layer including the active area and the inactive area in the base layer; and
a flexible circuit board disposed on the base layer and electrically connected to an end of the first ground pattern and the 1-1-th ground pad, wherein
the end of the first ground pattern and the 1-1-th ground pad are spaced apart from each other in a first direction,
a bending line extending in a second direction intersecting the first direction is defined between the end of the first ground pattern and the 1-1-th ground pad, and
the base layer and the flexible circuit board are bent along the bending line.

### Claim 14 (depends on 13)

The input sensing part of claim 13, further comprising:
at least one first connecting line disposed on the flexible circuit board and electrically connecting the end of the first ground pattern and the 1-1-th ground pad.

### Claim 15 (depends on 13)

The input sensing part of claim 13, further comprising:
at least one second connecting line disposed on the base layer and electrically connecting the end of the first ground pattern and the 1-1-th ground pad, the second connecting line having a wavy shape.

### Claim 16 (depends on 13)

The input sensing part of claim 13, further comprising:
at least one first connecting line disposed on the flexible circuit board and electrically connecting the end of the first ground pattern and the 1-1-th ground pad; and
at least one second connecting line disposed on the base layer and electrically connecting the end of the first ground pattern and the 1-1-th ground pad.

### Claim 17 (depends on 16)

The input sensing part of claim 16, further comprising:
dummy lines disposed near the at least one second connecting line.

### Claim 18 (depends on 17)

The input sensing part of claim 17, wherein the dummy lines are electrically connected to the first ground pattern.

### Claim 19

An input sensing part comprising:
sensing electrodes disposed in an active area;
a ground pattern disposed in an inactive area around the active area;
a ground pad disposed in the inactive area and electrically connected to the ground pattern; and
an antenna disposed in the active area and extending to the inactive area,
wherein the ground pattern is electrically connected to a ground terminal of the antenna.

### Claim 20

A display device comprising:
a display panel; and
an input sensing part disposed on the display panel,
wherein the input sensing part includes:
sensing electrodes disposed in an active area;
a first ground pattern disposed in an inactive area around the active area;
a first ground pad disposed in the inactive area and electrically connected to the first ground pattern;
a first antenna pattern insulated from the sensing electrodes and disposed in the active area;
a first signal pad extending from the first antenna pattern and disposed in the inactive area;
a 1-1-th ground pad disposed adjacent to the first signal pad and electrically connected to the first ground pattern; and
a 1-2-th ground pad disposed adjacent to the first signal pad.
