# US 12,603,022 B2 · Connecting assembly and electronic device including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,603,022 B2 - Document ID: US12603022B2 - Status: Granted - Kind: B2 - Application number: 17/873,565 - Filed: 2022-07-26 - Published: 2023-01-05 - Granted: 2026-04-14 - Earliest claimed: 2021-07-05 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Youngmin Ji; Ivanov Igor; Wonho Lee; Junghyeon Kim; Sanggon Shin; Jungyoung Lee; Yangwook Kim; Changryong Heo - Web page: https://patentgrep.com/patent/US12603022B2 ## CPC - G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED} - H05K 1/148: {Arrangements of two or more hingeably connected rigid printed circuit boards, i.e. connected by flexible means} - G06F 1/1624: {with sliding enclosures, e.g. sliding keyboard or display} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 1/1658: {related to the mounting of internal components, e.g. disc drive or any other functional module} - H04M 1/02: Constructional features of telephone sets - H04M 1/0235: {Slidable or telescopic telephones, i.e. with a relative translation movement of the body parts; Telephones using a combination of translation and other relative motions of the body parts} - H04M 1/0237: {Sliding mechanism with one degree of freedom} - H04M 1/0268: {including a flexible display panel} - H04M 1/0277: {for a printed circuit board assembly} - H05K 1/02: Details - H05K 1/0281: {Reinforcement details thereof} - H05K 1/118: {specially for flexible printed circuits, e.g. using folded portions} - H05K 1/14: Structural association of two or more printed circuits (providing electric connection to or between printed circuits H05K1/11, H01R12/00) - H05K 1/147: {at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence)} - H05K 1/189: characterised by the use of flexible or folded printed circuits - H05K 3/46: Manufacturing multilayer circuits - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - 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) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract An electronic device includes: a first housing including a first printed circuit board (PCB) and a second housing including a second printed circuit board (PCB), a flexible display, and a flexible printed circuit board (FPCB) including a first portion, a second portion connected to the first portion and the first PCB and configured to bend relative to the first portion in a first bending direction, a first flexible portion between the first portion and the second portion, a third portion connected to the first portion and the second PCB and configured to bend relative to the first portion in a second bending direction opposite to the first bending direction, and a second flexible portion between the first portion and the third portion. ## Claims ### Claim 1 An electronic device, comprising: a first housing including a first printed circuit board (PCB); a second housing configured to slide relative to the first housing in a first sliding direction and a second sliding direction opposite the first sliding direction and including a second printed circuit board (PCB); a flexible display comprising a display area configured to expand or reduce based on a sliding direction of the second housing relative to the first housing; and a flexible printed circuit board (FPCB) configured to electrically connect the first PCB and the second PCB and to expand based on the second housing sliding in the second direction or to contract based on the second housing sliding in the first direction, the FPCB including: a first portion having a rigid material and defining a bending reference, a second portion connected to the first portion and the first PCB, and configured to bend relative to the first portion in a first bending direction via a first flexible portion between the second portion and the first portion, and a third portion connected to the first portion and the second PCB, and configured to bend relative to the first portion in a second bending direction opposite to the first bending direction via a second flexible portion between the third portion and the first portion, wherein the first flexible portion and the second flexible portion are positioned on opposite sides of the bending reference defining independent flexible joints so that the second portion and the third portion are bendable about the first portion in mutually opposite directions while maintaining electrical continuity through the first portion, wherein the second portion and the third portion extend from the first portion in the same extending direction, and wherein based on the second housing sliding in the first sliding direction, the second portion and the third portion move closer to each other, and based on the second housing sliding in the second sliding direction, the second portion and the third portion move away from each other. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the second portion and the third portion form a first angle when the PCB is in a first configuration, and the second portion and the third portion form a second angle less than the first angle when the PCB is in a second configuration. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the FPCB further comprises: a third flexible portion between the first PCB and the second portion; and a fourth flexible portion between the second PCB and the third portion. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the first portion extends in a first extending direction, the second portion extends in a second extending direction intersecting with the first extending direction, and the third portion extends in a third extending direction intersecting with the first extending direction. ### Claim 5 (depends on 1) The electronic device of claim 1, wherein the first portion comprises: a first section; a second section extending from the first section and positioned between the first section and the second portion; and a third section extending from the first section, forming a gap with the second section, and positioned between the first section and the third portion. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the second portion and the third portion are separated from each other. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein the first portion comprises a flexible material, and the FPCB further comprises a reinforcement pattern positioned in the first portion. ### Claim 8 (depends on 7) The electronic device of claim 7, wherein the first portion comprises: a first section; a second section extending from the first section and positioned between the first section and the second portion; and a third section extending from the first section, forming a gap with the second section, and positioned between the first section and the third portion, wherein the reinforcement pattern is formed in at least one of the first section, the second section, and the third section and at least partially surrounding the gap. ### Claim 9 (depends on 1) The electronic device of claim 1, wherein the first portion comprises a flexible material, and the FPCB further comprises a reinforcement plate positioned in the first portion. ### Claim 10 (depends on 9) The electronic device of claim 9, wherein the first portion comprises a first outer edge connected to the second portion, a second outer edge connected to the third portion, and a third outer edge between the first outer edge and the second outer edge, and the reinforcement plate is positioned on the first outer edge, the second outer edge, and the third outer edge. ### Claim 11 (depends on 9) The electronic device of claim 9, wherein the first portion comprises a first outer edge connected to the second portion, a second outer edge connected to the third portion, and a third outer edge between the first outer edge and the second outer edge, and the reinforcement plate is positioned on the first outer edge and the second outer edge and is not positioned on the third outer edge. ### Claim 12 (depends on 9) The electronic device of claim 9, wherein the first portion comprises a first outer edge connected to the second portion, a second outer edge connected to the third portion, and a third outer edge between the first outer edge and the second outer edge, and the reinforcement plate is not positioned on any of the first outer edge, the second outer edge, and the third outer edge. ### Claim 13 (depends on 1) The electronic device of claim 1, further comprising: a guide disposed in at least one of the first housing and the second housing and configured to guide the first portion. ### Claim 14 (depends on 1) The electronic device of claim 1, wherein the FPCB comprises: a first outermost layer, a second outermost layer opposite the first outermost layer, and a plurality of intermediate layers between the first outermost layer and the second outermost layer, and in the first flexible portion, a length of an intermediate layer adjacent to the first outermost layer is shorter than a length of an intermediate layer adjacent to the second outermost layer. ### Claim 15 (depends on 1) The electronic device of claim 1, wherein the first housing or the second housing further comprises a third printed circuit board (PCB), wherein the FPCB further comprises: a fourth portion having a rigid material, a fifth portion connected to the fourth portion and the first PCB, having a rigid material, and configured to bend relative to the fourth portion in a third bending direction, a third flexible portion between the fourth portion and the fifth portion, a sixth portion connected to the fourth portion and the third PCB, having a rigid material, and configured to bend relative to the fourth portion in a fourth bending direction different from the third bending direction, and a fourth flexible portion between the fourth portion and the sixth portion. ### Claim 16 A flexible printed circuit board (FPCB), comprising: a first portion having a rigid material and defining a bending reference; a second portion connected to the first portion, and configured to bend relative to the first portion in a first bending direction via a first flexible portion between the second portion and the first portion; and a third portion connected to the first portion, and configured to bend relative to the first portion in a second bending direction opposite to the first bending direction via a second flexible portion between the third portion and the first portion, wherein the first flexible portion and the second flexible portion are positioned on opposite sides of the bending reference defining independent flexible joints so that the second portion and the third portion are bendable about the first portion in mutually opposite directions while maintaining electrical continuity through the first portion, wherein the second portion and the third portion extend from the first portion in the same extending direction, wherein in a first configuration, the second portion and the third portion move closer to each other, and in a second configuration, the second portion and the third portion move away from each other, and wherein the second portion and the third portion form a first angle when the FPCB is in the first configuration, and the second portion and the third portion form a second angle less than the first angle when the FPCB is in the second configuration. ### Claim 17 (depends on 16) The FPCB of claim 16, further comprising: a fourth portion having a rigid material; a fifth portion connected to the fourth portion, having a rigid material, and configured to bend relative to the fourth portion in a third bending direction; a third flexible portion between the fourth portion and the fifth portion; a sixth portion connected to the fourth portion, having a rigid material, and configured to bend relative to the fourth portion in a fourth bending direction different from the third bending direction; and a fourth flexible portion between the fourth portion and the sixth portion.