# US 12,181,924 B2 · Electronic device including flexible printed circuit board

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- Number: US 12,181,924 B2
- Document ID: US12181924B2
- Status: Granted
- Kind: B2
- Application number: 18/453,648
- Filed: 2023-08-22
- Published: 2023-12-07
- Granted: 2024-12-31
- Earliest claimed: 2020-08-03
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Dongyup Lee; Joon Heo; Jungchul An
- Web page: https://patentgrep.com/patent/US12181924B2

## CPC

- H04M 1/0216: {Foldable in one direction, i.e. using a one degree of freedom hinge}
- H04M 1/0268: {including a flexible display panel}
- G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position}
- G06F 1/1635: {Details related to the integration of battery packs and other power supplies such as fuel cells or integrated AC adapter}
- G06F 1/1641: {the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence)}
- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- G06F 1/1681: {Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683)}
- G06F 1/1683: {for the transmission of signal or power between the different housings, e.g. details of wired or wireless communication, passage of cabling}
- H04B 1/3827: Portable transceivers
- H04M 1/0262: {for a battery compartment}
- H04M 1/0277: {for a printed circuit board assembly}
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04B: TRANSMISSION

## Abstract

An electronic device is provided. The electronic device includes at least one hinge module providing at least one folding axis, a first housing coupled with the hinge module to rotate around the folding axis, a second housing coupled with the hinge module to rotate around the folding axis, and rotating with respect to the first housing, between a first position at which the second housing is folded, facing the first housing and a second position at which the second housing is unfolded at a specified angle from the first position, a first battery provided in the first housing, a first circuit board including a first arrangement area disposed in parallel to the first battery at least partially along a direction parallel to the folding axis, and a second arrangement area extending from the first arrangement area and disposed between the folding axis and the battery, and at least one flexible printed circuit board (FPCB) extending from the interior of the first housing to the interior of the second housing across the folding axis. Inside the first housing, one end portion of the FPCB is connected to the second arrangement area, between the folding axis and the first battery, and a part of the FPCB is disposed between the first battery and the second arrangement area.

## Claims

### Claim 1

An electronic device comprising:
a first housing;
a second housing;
a flexible display disposed from one surface of the first housing to one surface of the second housing across an area in which a hinge module is disposed;
a hinge cover disposed between at least a part of the first housing and at least a part of the second housing and configured to accommodate and cover at least a part of the hinge module;
at least one hinge module coupled to the first housing and the second housing and configured to allow rotation of the first housing and the second housing with respect to each other between a folded position and an unfolded position;
a first battery accommodated in the first housing; and
a first circuit board accommodated in the first housing, the first circuit board includes a part disposed between the first battery and the hinge cover and providing an area to which at least one flexible printed circuit board (FPCB) is connected,
wherein the at least one FPCB extends from an interior of the first housing to an interior of the second housing, and is at least partially disposed between the hinge cover and the flexible display, and
wherein a portion of the at least one FPCB is disposed between the first battery and the part of the first circuit board.

### Claim 2 (depends on 1)

The electronic device of claim 1, wherein the at least one FPCB comprises:
a connector portion connected to a first portion;
a first bent portion extending from the connector portion and disposed between the first battery and the area; and
a fixed portion extending from the first bent portion and disposed to face the connector portion with a part of the first portion in between.

### Claim 3 (depends on 2)

The electronic device of claim 2, wherein the fixed portion is disposed at least partially between the connector portion and the flexible display.

### Claim 4 (depends on 3)

The electronic device of claim 3, wherein the fixed portion is fixed inside the first housing, between the area and the flexible display.

### Claim 5 (depends on 1)

The electronic device of claim 1, wherein the at least one FPCB comprises:
a connector portion connected to the area,
a first bent portion extending from the connector portion and disposed between the first battery and the area,
a fixed portion extending from the first bent portion and disposed at least partially between a first portion and the flexible display,
a second bent portion extending from the fixed portion and disposed inside the hinge cover, and
another fixed portion extending from the second bent portion and disposed inside the second housing.

### Claim 6 (depends on 5)

The electronic device of claim 5,
wherein the at least one FPCB further comprises:
another first bent portion extending from the other fixed portion and disposed inside the second housing, and
another connector portion extending from the other first bent portion and disposed inside the second housing, and
wherein the other fixed portion is disposed at least partially between the other connector portion and the flexible display.

### Claim 7 (depends on 1)

The electronic device of claim 1, wherein the first circuit board includes a first portion in parallel to the first battery, along a direction perpendicular to a folding axis of the hinge module and the part as a second portion disposed in parallel to the first battery along a direction parallel to the folding axis of the hinge module.

### Claim 8 (depends on 1)

The electronic device of claim 1, wherein the hinge cover is exposed between the first housing and the second housing at the folded position, and at least partially hidden by the first housing and the second housing at the unfolded position.

### Claim 9 (depends on 1)

The electronic device of claim 1, further comprising:
a second circuit board accommodated in the second housing,
wherein the at least one FPCB electrically couples the first circuit board and the second circuit board to each other.

### Claim 10 (depends on 1)

The electronic device of claim 1, further comprising at least one reinforcing plate disposed on the part.

### Claim 11 (depends on 1)

The electronic device of claim 1,
wherein the at least one hinge module is configured to provide at least one folding axis around which the first housing and the second housing rotate, and
wherein a plurality of FPCBs are arranged along a direction of the at least one folding axis, each FPCB being arranged perpendicularly to said direction, respectively.
