Foldable electronic device

Abstract

According to an example embodiment of the present disclosure, an electronic device includes a first housing, a second housing, and a hinge module for connecting the first housing and the second housing, wherein: the hinge module includes a first portion configured to be rotatable with respect to a first rotation axis, a second portion configured to be rotatable with respect to a second rotation axis parallel to the first rotation axis and spaced apart from the first rotation axis, and a first bracket connected to the first portion and the second portion and fixed to the first housing; the first part and the first bracket are connected to be slidable relative to each other in a first linear direction; the second part and the first bracket are connected to be slidable relative to each other in a second linear direction different from the first linear direction; and when the angle between the first housing and the second housing is changed, the first portion and the first bracket are slidable relative to each other, and the second portion and the first bracket are slidable relative to each other.

Description

Technical Field

[0001] The present disclosure relates to a foldable electronic device. Background Art

[0002] When the foldable electronic device is switched from the unfolded state to the folded state, a region of the flexible display module corresponding to the folded portion of the foldable electronic device may be converted from the unfolded state and set to the bent state.

[0003] The above information may be provided as related art for the purpose of assisting understanding of the present disclosure. No assertion or determination is made as to whether any of the foregoing might be applicable as prior art with respect to the present disclosure. Summary of the invention

[0004] Technical issues

[0005] A foldable electronic device may require a structure capable of reducing bending stress in a region of a flexible display module corresponding to a folded portion of the foldable electronic device.

[0006] Embodiments of the present disclosure may provide a foldable electronic device capable of reducing bending stress in a region of a flexible display module corresponding to a folded portion of the foldable electronic device.

[0007] The technical problems to be solved by the present disclosure are not limited to those described above, and a person of ordinary skill in the relevant field to which the present disclosure belongs may understand other technical problems.

[0008] Solution to the problem

[0009] According to an exemplary embodiment of the present disclosure, an electronic device may include a first housing, a second housing, and a hinge module connecting the first housing and the second housing. The hinge module may include a first unit, a second unit, and a first bracket. The first unit may be configured to be rotatable around a first rotation axis. The second unit may be configured to be rotatable around a second rotation axis, wherein the second rotation axis is parallel to the first rotation axis and spaced apart from the first rotation axis. The first bracket may be connected to the first unit and the second unit, and may be fixed to the first housing. The first unit and the first bracket may be connected to be slidable relative to each other in a first linear direction, and the second unit and the first bracket may be connected to be slidable relative to each other in a second linear direction different from the first linear direction. When the angle between the first housing and the second housing changes, the first unit and the first bracket may slide relative to each other, and the second unit and the first bracket may slide relative to each other.

[0010] According to an exemplary embodiment of the present disclosure, an electronic device may include a first housing, a second housing, and a hinge module connecting the first housing and the second housing. The hinge module may include a first unit, a second unit, a first bracket, a third unit, a fourth unit, and a second bracket. The first unit may be configured to be rotatable around a first rotation axis. The second unit may be configured to be rotatable around a second rotation axis, wherein the second rotation axis is parallel to the first rotation axis and spaced apart from the first rotation axis. The first bracket may be connected to the first unit and the second unit, and may be fixed to the first housing. The third unit may be configured to be rotatable around a third rotation axis. The fourth unit may be configured to be rotatable around a fourth rotation axis. The second bracket may be connected to the third unit and the fourth unit, and may be fixed to the second housing. The third rotation axis may be placed symmetrically with the first rotation axis about a center line of the electronic device. The third unit may be arranged symmetrically with the first unit about a center line of the electronic device. The fourth rotation axis may be placed symmetrically with the second rotation axis about a center line of the electronic device. The fourth unit may be arranged symmetrically with the second unit about a center line of the electronic device. The first unit and the first bracket may be connected to be slidable relative to each other in a first linear direction. The second unit and the first bracket may be connected to be slidable relative to each other in a second linear direction different from the first linear direction. The third unit and the second bracket may be connected to be slidable relative to each other in a third linear direction symmetrical to the first linear direction about a center line of the electronic device. The fourth unit and the second bracket may be connected to be slidable relative to each other in a fourth linear direction symmetrical to the second linear direction about a center line of the electronic device. When the angle between the first shell and the second shell changes, the first unit and the second unit may slide relative to the first bracket, and the third unit and the fourth unit may slide relative to the second bracket.

[0011] Advantageous Effects of the Invention

[0012] The foldable electronic device according to various embodiments of the present disclosure can reduce bending stress in the area corresponding to the hinge portion of the flexible display module. When the foldable electronic device is switched from an unfolded state to a folded state, buckling in the area corresponding to the hinge portion of the flexible display module can be reduced.

[0013] In addition, effects that can be obtained or predicted by various embodiments of the present disclosure may be directly or implicitly disclosed in the detailed description of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following detailed description in conjunction with the accompanying drawings.

[0015] Figure 1 A block diagram of an electronic device in a network environment according to an embodiment of the present disclosure is shown.

[0016] Figure 2 A view showing an electronic device in an unfolded state according to an embodiment of the present disclosure is illustrated.

[0017] Figure 3 A view showing an electronic device in a folded state according to an embodiment of the present disclosure is illustrated.

[0018] Figure 4 An exploded perspective view showing a portion of an electronic device in an unfolded state according to an embodiment of the present disclosure is illustrated.

[0019] Figure 5 A view showing a foldable housing in an electronic device in an unfolded state according to an embodiment of the present disclosure is illustrated.

[0020] Figure 6 Cross-sectional views respectively illustrating an unfolded state and a folded state of an electronic device according to an embodiment of the present disclosure are illustrated.

[0021] Figure 7 A cross-sectional view showing a foldable case when an electronic device according to various embodiments of the present disclosure is unfolded is illustrated.

[0022] Figure 8 An exploded perspective view of a first hinge module according to an embodiment of the present disclosure is shown.

[0023] Fig. 9 A perspective view illustrating a first hinge module according to an embodiment of the present disclosure is shown.

[0024] Fig.10 A view showing a first unit of a first hinge module according to an embodiment of the present disclosure is illustrated.

[0025] Fig.11 A view showing a third unit of a first hinge module according to an embodiment of the present disclosure is illustrated.

[0026] Fig.12 A view showing a second unit of a first hinge module according to an embodiment of the present disclosure is illustrated.

[0027] Fig.13 A view showing a fourth unit of the first hinge module according to an embodiment of the present disclosure is illustrated.

[0028] Fig.14 A view showing a fifth unit of a first bracket according to an embodiment of the present disclosure is shown.

[0029] Fig.15 A view showing a seventh unit of a second bracket according to an embodiment of the present disclosure is shown.

[0030] Fig.16 A cross-sectional view showing a first circular gear, a second circular gear, a third circular gear, and a fourth circular gear according to an embodiment of the present disclosure is shown.

[0031] Fig.17 A perspective view showing a hinge portion and a view showing the hinge portion when the electronic device according to an embodiment of the present disclosure is in an unfolded state.

[0032] Fig.18 A view showing a first hinge module when the electronic device according to an embodiment of the present disclosure is in an unfolded state, a cross-sectional view of the first hinge module taken along line DD', and a cross-sectional view of the first hinge module taken along line EE' are shown.

[0033] Fig.19 A perspective view showing a hinge portion when the electronic device according to an embodiment of the present disclosure is in a closed state and a view showing the hinge portion.

[0034] Fig. 20 A view showing a first hinge module when the electronic device according to an embodiment of the present disclosure is in a closed state, a cross-sectional view of the first hinge module taken along line FF', and a cross-sectional view of the first hinge module taken along line EE' are shown.

[0035] Fig.21 A view showing a first hinge module when the electronic device according to an embodiment of the present disclosure is in an intermediate state, a cross-sectional view of the first hinge module taken along line HH', and a cross-sectional view of the first hinge module taken along line II' are shown.

[0036] Fig. 22 A view showing an electronic device in an unfolded state, a view showing an electronic device in an intermediate state, and a view showing an electronic device in a folded state according to an embodiment of the present disclosure are shown.

[0037] Fig.23 A view showing a first hinge module when the electronic device according to various embodiments of the present disclosure is in an unfolded state and a cross-sectional view of the first hinge module taken along line JJ′ are shown.

[0038] Fig.24 A view showing a hinge portion when the electronic device according to various embodiments of the present disclosure is in an unfolded state and a cross-sectional view of the hinge portion taken along line KK′ are shown.

[0039] Fig.25 A view showing a first hinge module when the electronic device according to various embodiments of the present disclosure is in a folded state and a cross-sectional view of the first hinge module taken along line LL′ are shown.

[0040] Fig.26 A view showing an unfolded state of an electronic device according to various embodiments of the present disclosure and a view showing a folded state of the electronic device are illustrated. DETAILED DESCRIPTION

[0041] Hereinafter, various exemplary embodiments of the present disclosure disclosed herein will be described in more detail with reference to the accompanying drawings.

[0042] Figure 1 is a block diagram illustrating an electronic device 101 in a network environment 100 according to an embodiment.

[0043] refer to Figure 1 , the electronic device 101 in the network environment 100 may communicate with the electronic device 102 via the first network 198 (e.g., a short-range wireless communication network), or communicate with at least one of the external electronic device 104 or the server 108 via the second network 199 (e.g., a long-range wireless communication network). The electronic device 101 may communicate with the external electronic device 104 via the server 108. The electronic device 101 may include a processor 120, a memory 130, an input module 150, a sound output module 155, a display module 160, an audio module 170, a sensor module 176, an interface 177, a connection terminal 178, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a user identification module (SIM) 196, and / or an antenna module 197. In some embodiments of the present disclosure, at least one of the above components (e.g., the connection terminal 178) may be omitted from the electronic device 101, or one or more other components may be added to the electronic device 101. In some embodiments of the present disclosure, some components may be implemented as a single integrated circuit. For example, the sensor module 176, the camera module 180, or the antenna module 197 may be implemented as embedded in a single component (eg, the display module 160).

[0044] The processor 120 may run, for example, software (e.g., program 140) to control at least one other component (e.g., hardware component or software component) of the electronic device 101 connected to the processor 120, and may perform various data processing or calculations. As at least part of the data processing or calculation, the processor 120 may store a command or data received from another component (e.g., sensor module 176 or communication module 190) in the volatile memory 132, process the command or data stored in the volatile memory 132, and store the obtained data in the non-volatile memory 134. The processor 120 may include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)) or an auxiliary processor 123 (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is independent of or combined with the main processor 121 in operation. In addition or alternatively, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or adapted to be dedicated to a specific function. The auxiliary processor 123 may be implemented separately from the main processor 121 , or as part of the main processor 121 .

[0045] When the main processor 121 is in an inactive (e.g., sleep) state, the auxiliary processor 123 (rather than the main processor 121) may control at least some of the functions or states related to at least one component among the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190), or when the main processor 121 is in an active state (e.g., running an application), the auxiliary processor 123 may control at least some of the functions or states related to at least one component among the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) together with the main processor 121. The auxiliary processor 123 (e.g., an image signal processor (ISP) or a communication processor (CP)) may be implemented as part of another component (e.g., the camera module 180 or the communication module 190) that is functionally related to the auxiliary processor 123. According to an embodiment of the present disclosure, the auxiliary processor 123 (e.g., a neural network processing device) may include a hardware structure designated to process an artificial intelligence model. The artificial intelligence model may be created through machine learning. For example, learning can be performed in the electronic device 101 itself that can execute the artificial intelligence model, or can be performed by a separate server (e.g., server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to this. The artificial intelligence model may include multiple artificial neural network layers, and the artificial neural network may be any of a deep neural network (DNN), a convolutional neural network (CNN), a recursive neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recursive DNN (BRDNN), a deep Q network, or a combination of two or more of the above networks, but is not limited to the above examples. In addition to the hardware structure, the artificial intelligence model may additionally or optionally include a software structure.

[0046] Various data used by the memory 130 or non-volatile memory 101H (e.g., the processor 120 or the sensor module 176). The various data may include, for example, software (e.g., program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 and / or a non-volatile memory 134.

[0047] The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system (OS) 142 , middleware 144 , and / or an application 146K.

[0048] The input module 150 may receive commands or data to be used by other components (e.g., the processor 120) of the electronic device 101 from outside (e.g., a user) of the electronic device 101. The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus).

[0049] The sound output module 155 can output sound signals to the outside of the electronic device 101. The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as playing multimedia or playing a recording, and the receiver can be used for incoming calls. The receiver can be implemented as a separate speaker or as a part of the speaker.

[0050] The display module 160 may visually provide information to the outside of the electronic device 101 (e.g., a user). The display device 160 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the projector. The display module 160 may include a touch circuit (e.g., a touch sensor) suitable for detecting a touch, or a sensor circuit (e.g., a pressure sensor) suitable for measuring the force generated by a touch.

[0051] The audio module 170 can convert sound into an electrical signal, or vice versa. The audio module 170 can obtain sound via the input module 150, or output sound via the sound output module 155 or an earphone of an external electronic device (e.g., external electronic device 102) directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0052] The sensor module 176 may detect an operating state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a user's state) outside the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. The sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0053] The interface 177 may support one or more specific protocols to be used to connect the electronic device 101 directly (e.g., wired) or wirelessly to an external electronic device (e.g., external electronic device 102). The interface 177 may include, for example, a high-definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, and / or an audio interface.

[0054] The connection end 178 may include a connector, wherein the electronic device 101 can be physically connected to an external electronic device (e.g., the external electronic device 102) via the connector. The connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, and / or an audio connector (e.g., a headphone connector).

[0055] The haptic module 179 may convert the electrical signal into mechanical stimulation (eg, vibration or motion) or electrical stimulation that can be recognized by the user via his sense of touch or kinesthetic sense. The haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0056] The camera module 180 may capture still images or moving images. The camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

[0057] The power management module 188 may manage power provided to or consumed by the electronic device 101. The power management module 188 may be implemented as, for example, at least part of a power management integrated circuit (PMIC).

[0058] The battery 189 may power at least one component of the electronic device 101. The battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, and / or a fuel cell.

[0059] The communication module 190 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., external electronic device 102, external electronic device 104, or server 108), and perform communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently from the processor 120 (e.g., an application processor (AP)) and supporting direct (e.g., wired) communication or wireless communication. The communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules can be implemented as a single component (e.g., a single chip), or these various types of communication modules can be implemented as multiple components separated from each other (e.g., multiple chips). The wireless communication module 192 can identify and authenticate the electronic device 101 in a communication network (such as the first network 198 or the second network 199) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196.

[0060] The wireless communication module 192 can support 5G networks after 4G networks and next-generation communication technologies (e.g., new radio (NR) access technology). NR access technology can support enhanced mobile broadband (eMBB), massive machine type communication (mMTC), or ultra-reliable low-latency communication (URLLC). The wireless communication module 192 can support high-frequency bands (e.g., millimeter wave bands) to achieve, for example, high data transmission rates. The wireless communication module 192 can support various technologies for ensuring performance on high-frequency bands, such as, for example, beamforming, massive multiple-input multiple-output (massive MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, or massive antennas. The wireless communication module 192 of the present disclosure can support various requirements specified in the electronic device 101, an external electronic device (e.g., an external electronic device 104), or a network system (e.g., a second network 199). Depending on the embodiment, the wireless communication module 192 may support a peak data rate for implementing eMBB (e.g., 20 Gbps or greater), loss coverage for implementing mMTC (e.g., 164 dB or less), or U-plane delay for implementing URLLC (e.g., 0.5 ms or less for each of the downlink (DL) and uplink (UL), or 1 ms or less round trip).

[0061] The antenna module 197 may transmit a signal or power to the outside of the electronic device 101 (e.g., an external electronic device) or receive a signal or power from the outside of the electronic device 101 (e.g., an external electronic device). The antenna module 197 may include an antenna including a radiating element, the radiating element being composed of a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module 197 may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network (such as the first network 198 or the second network 199) may be selected from the plurality of antennas by, for example, the communication module 190 (e.g., the wireless communication module 192). A signal or power may then be transmitted or received between the communication module 190 and the external electronic device via the selected at least one antenna. Additional components other than the radiating element (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module 197.

[0062] According to various embodiments of the present disclosure, the antenna module 197 may form a millimeter wave antenna module. According to embodiments of the present disclosure, the millimeter wave antenna module may include a printed circuit board, a radio frequency integrated circuit (RFIC), and a plurality of antennas (e.g., array antennas), wherein the RFIC is disposed on a first surface (e.g., bottom surface) of the printed circuit board, or is adjacent to the first surface and is capable of supporting a specified high frequency band (e.g., millimeter wave band), and the plurality of antennas are disposed on a second surface (e.g., top surface or side surface) of the printed circuit board, or is adjacent to the second surface and is capable of transmitting or receiving signals of the specified high frequency band.

[0063] At least some of the above components may be connected to each other via an inter-peripheral communication scheme (e.g., a bus, a general purpose input output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)) and communicatively transmit signals (e.g., commands or data) therebetween.

[0064] A command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 via the server 108 connected to the second network 199. Each of the electronic device 102 or the electronic device 104 may be a device of the same type as the electronic device 101, or a device of a different type from the electronic device 101. All or some operations to be executed on the electronic device 101 may be executed on one or more of the external electronic device 102, the external electronic device 104, or the server 108. For example, if the electronic device 101 should automatically execute a function or service or should execute a function or service in response to a request from a user or another device, the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service instead of executing the function or service, or the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service in addition to executing the function or service. The one or more external electronic devices that receive the request may execute the requested at least part of the function or service, or execute another function or another service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may provide the result as at least a partial reply to the request when the result is further processed or when the result is not further processed. To this end, cloud computing technology, distributed computing technology, mobile edge computing (MEC) technology or client-server computing technology, for example, may be used. The electronic device 101 may use, for example, distributed computing or mobile edge computing to provide ultra-low latency services. In another embodiment of the present disclosure, the external electronic device 104 may include an Internet of Things (IoT) device. The server 108 may be an intelligent server using machine learning and / or neural networks. According to an embodiment of the present disclosure, the external electronic device 104 or the server 108 may be included in the second network 199. The electronic device 101 may be applied to intelligent services (e.g., smart homes, smart cities, smart cars or health care) based on 5G communication technology or IoT-related technologies.

[0065] The electronic device according to the embodiment of the present disclosure may be one of various types of electronic devices. The electronic device may include a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a household appliance. However, the electronic device is not limited to any of the above.

[0066] The various embodiments of the present disclosure and the terms used herein are not intended to limit the technical features set forth herein to specific embodiments, but include various changes, equivalent forms or alternative forms for the corresponding embodiments. For the description of the accompanying drawings, similar reference numerals may be used to refer to similar or related elements. It will be understood that the nouns in the singular form corresponding to the term may include one or more things, unless the relevant context clearly indicates otherwise. As used herein, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C" and "at least one of A, B or C" may include any one or all possible combinations of the items listed together with the corresponding one of the multiple phrases. As used herein, terms such as "1st" and "2nd" or "first" and "second" may be used to simply distinguish the corresponding component from another component, and do not limit the component in other aspects (e.g., importance or order). If an element (e.g., a first element) is referred to as being “combined with another element (e.g., the second element)”, “combined to another element (e.g., the second element)”, “connected with another element (e.g., the second element)”, or “connected to another element (e.g., the second element)” with or without the terms “operably” or “communicatively”, it means that the element may be directly (e.g., wired) connected to the other element, wirelessly connected to the other element, or connected to the other element via a third element.

[0067] The term "module" may include a unit implemented in hardware, software or firmware, or any combination thereof, and may be used interchangeably with other terms (e.g., "logic", "logic block", "part" or "circuit"). A module may be a single integrated component adapted to perform one or more functions or the smallest unit or part of the single integrated component. For example, according to an embodiment of the present disclosure, a module may be implemented in the form of an application specific integrated circuit (ASIC).

[0068] The various embodiments described herein may be implemented as software (e.g., program 140) including one or more instructions stored in a storage medium (e.g., internal memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). For example, under the control of a processor, a processor (e.g., processor 120) of the machine (e.g., electronic device 101) may call at least one of the one or more instructions stored in the storage medium and execute the at least one instruction with or without the use of one or more other components. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be run by an interpreter. A machine-readable storage medium may be provided in the form of a non-transitory storage medium. Among them, the term "non-transitory" only means that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but the term does not distinguish between data being semi-permanently stored in the storage medium and data being temporarily stored in the storage medium.

[0069] The method according to the embodiments of the present disclosure may be included and provided in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be released in the form of a machine-readable storage medium (e.g., a compact disk read-only memory (CD-ROM)), or may be downloaded via an application store (e.g., PLAYSTORE). TM ) The computer program product may be published (e.g., downloaded or uploaded) online, or the computer program product may be distributed (e.g., downloaded or uploaded) directly between two user devices (e.g., smart phones). If published online, at least part of the computer program product may be temporarily generated, or at least part of the computer program product may be at least temporarily stored in a machine-readable storage medium (such as a memory of a manufacturer's server, an application store's server, or a forwarding server).

[0070] Each of the above-mentioned components (e.g., a module or a program) may include a single entity or multiple entities. According to various embodiments, one or more of the above-mentioned components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., modules or programs) may be integrated into a single component. In this case, the integrated component may perform the one or more functions of each of the multiple components in the same or similar manner as a corresponding one of the multiple components performs one or more functions before integration. The operations performed by a module, a program or another component may be performed sequentially, in parallel, repeatedly or in a heuristic manner, or one or more of the operations may be run or omitted in a different order, or one or more other operations may be added.

[0071] Figure 2 A view showing an electronic device 2 in a flat or unfolded state (or an unfolded state) according to an embodiment of the present disclosure is shown. Figure 3 A view showing an electronic device 2 in a folded state (or a folded state) according to an embodiment of the present disclosure is shown.

[0072] Reference Figure 2 and Figure 3 The electronic device 2 may include a foldable housing 20 and a flexible display module 24 disposed on the foldable housing 20 .

[0073] According to an embodiment, the foldable housing 20 may include a first housing (or a first housing portion or a first housing structure) 21, a second housing (or a second housing portion or a second housing structure) 22, a hinge housing 23 and / or a hinge portion. The first housing 21 and the second housing 22 may be connected via a hinge portion and may rotate relative to each other about the hinge portion. The hinge portion may include one or more hinge modules (or hinge assemblies) (e.g., Figure 4 The first hinge module 5A, the second hinge module 5B or the third hinge module 5C).

[0074] According to an embodiment, the display area 24A of the flexible display module 24 may include an active area of ​​the flexible display module 24 capable of displaying an image, a first display area (or a first active area or a first screen area) ①, a second display area (or a second active area or a second screen area) ②, and a third display area (or a third active area or a third screen area) ③ connecting the first display area ① and the second display area ②. The first display area ① may be placed to correspond to the first shell 21. The second display area ② may be placed to correspond to the second shell 22. The third display area ③ may be placed to correspond to the hinge portion. The first display area ① may be set on the first shell 21, and the shape of the first display area ① may be maintained by the support of the first shell 21. The second display area ② may be set on the second shell 22, and the shape of the second display area ② may be maintained by the support of the second shell 22. The first display area ① and the second display area ② may be set to be, for example, substantially flat. The unfolded state of the electronic device 2 (see Figure 2) may be a state in which the third display area ③ is set to be substantially flat. In the unfolded state of the electronic device 2, the first display area ① and the second display area ② may form an angle of about 180 degrees, and the display area 24A including the first display area ①, the second display area ② and the third display area ③ may be set in a substantially flat form. Due to the relative position between the first display area ① set on the first shell 21 and the second display area ② set on the second shell 22 in the unfolded state of the electronic device 2, the third display area ③ connecting the first display area ① and the second display area ② may be set flat. In the unfolded state of the electronic device 2, the third display area ③ may be pulled by the first display area ① and the second display area ② on the opposite sides, and while allowing the third display area ③ to be set flat, a pulling force may be provided to reduce damage to the third display area ③. While the stress may be reduced by being pulled by the first display area ① and the second display area ② in the unfolded state of the foldable device 2, the third display area ③ is provided with an extended width, which may be set flat. In the unfolded state of the electronic device 2, the hinge portion may support the third display area ③. In the unfolded state of the electronic device 2, even if an external force (e.g., external pressure such as a touch input using a user's finger or a touch input using an electronic pen) is applied to the third display area ③, the third display area ③ can be kept flat without sagging due to the support of the hinge portion. The coordinate axes shown are shown based on the first housing 21, and for example, the +z axis direction can be interpreted as a direction oriented by a plane provided by the flat first display area ①.

[0075] According to an embodiment, the electronic device 2 may be provided in an inward folding type in which the display area 24A of the flexible display module 24 is folded inwardly. Figure 3 The fully folded state of the electronic device 2 is shown, in which the first housing 21 and the second housing 22 are arranged so that they can no longer be closer to each other. In the fully folded state of the electronic device 2, the first display area ① and the second display area ② can be placed facing each other, and the third area ③ can be arranged in a curved form. In the fully folded state of the electronic device 2, the angle between the first housing 21 and the second housing 22 (or the angle between the first display area ① and the second display area ②) can be about 0 degrees to about 10 degrees, and the display area 24A can be substantially invisible. Although not shown, the intermediate state of the electronic device 2 can be a state between the unfolded state and the fully folded state, or can be a state that is less folded than the fully folded state. In the intermediate state where the angle between the first housing 21 and the second housing 22 is equal to or greater than a certain angle, a use environment in which the user is substantially not difficult to use the display area 24A can be provided. In the following, the "folded state of the electronic device 2" described herein may refer to a fully folded state compared to an intermediate state of a less folded state.

[0076] According to an embodiment, when viewing the unfolded state of the electronic device 2 (see Figure 2 ), the display area 24A of the flexible display module 24 may be set to a symmetrical shape relative to the center line A of the electronic device 2. The center line A may correspond to the middle of the width of the third display area ③ extending from the first boundary between the first display area ① and the third display area ③ to the second boundary between the second display area ② and the third display area ③ when the electronic device 2 is viewed in the unfolded state. The third display area ③ (see FIG. 1 ) set in a curved shape in the folded state of the electronic device 2 Figure 3 ) may be a substantially symmetrical shape relative to the center line A of the electronic device 2. When viewing the unfolded state of the electronic device 2, the display area 24A may be substantially rectangular. The display area 24A may include a first edge E1, a second edge E2, a third edge E3, and a fourth edge E4. The first edge E1 and the second edge E2 may be substantially parallel to the center line A. The third edge E3 may connect one end of the first edge E1 and one end of the second edge E2, and the fourth edge E4 may connect the other end of the first edge E1 and the other end of the second edge E2. The first display area ① may include the first edge E1, a portion of the third edge E3, and a portion of the fourth edge E4. The second display area ② may include the second edge E2, a portion of the third edge E3, and a portion of the fourth edge E4. The third display area ③ may include a portion of the third edge E3 and a portion of the fourth edge E4. In the folded state of the electronic device 2, the first edge E1 and the second edge E2 may be aligned to overlap each other. In the folded state of the electronic device 2, a portion of the third edge E3 included in the first display area ① and a portion of the third edge E3 included in the second display area ② may be aligned to overlap each other. In the folded state of the electronic device 2 , a portion of the fourth edge E4 included in the first display area ① and a portion of the fourth edge E4 included in the second display area ② may be aligned to overlap each other.

[0077] According to an embodiment, the first housing 21 may include a first frame (or a first frame structure or a first frame) 211 and / or a first cover 212 disposed on the first frame 211. The first frame 211 may include a first side (or a first side surface member, a first side surface structure or a first side surface frame structure) (e.g., Figure 4 The first side may be arranged along an edge of the first display area ① of the flexible display module 24. The first side may provide a first side surface of the electronic device 2 corresponding to the first display area ① of the electronic device 2. The first frame 211 may include a first support portion (e.g., Figure 4The first display area ① may be disposed on the first support portion, and the first support portion may support the first display area ①. The first display area ① and the first cover 212 may be placed on opposite sides of the first support portion of the first frame 211. The first side of the first frame 211 may be arranged to at least partially surround the space between the first display area ① and the first cover 212. The first display area ① may provide an outer surface of the electronic device 2, and the first cover 212 may provide another outer surface of the electronic device 2 that is substantially away from the first display area ①. Various electrical components (or electronic components) such as a printed circuit board or a battery may be disposed on the first support portion between the first support portion of the first frame 211 and the first cover 212.

[0078] According to an embodiment, the second housing 22 may include a second frame (or a second frame structure or a second frame) 221 and / or a second cover 222 disposed on the second frame 221. The second frame 221 may include a second side (or a second side surface member, a second side surface structure or a second side surface frame structure) (e.g., Figure 4 The second side may be arranged along the edge of the second display area ② of the flexible display module 24. The second side may provide a second side surface of the electronic device 2 corresponding to the second display area ② of the electronic device 2. Figure 3 ), the first side of the first frame 211 and the second side of the second frame 221 may be aligned to overlap each other. The second frame 221 may include a second support portion (eg, Figure 4 The second support portion 421 in the second display area ② may be disposed on the second support portion, and the second support portion may support the second display area ②. The second display area ② and the second cover 222 may be placed on opposite sides of the first support portion of the second frame 221. The second side of the second frame 221 may be arranged to at least partially surround the space between the second display area ② and the second cover 222. The second display area ② may provide an outer surface of the electronic device 2, and the second cover 222 may provide another outer surface of the electronic device 2 that is substantially away from the second display area ②. Various electrical components (or electronic components) such as a printed circuit board or a battery may be disposed on the second support portion between the second support portion of the second frame 221 and the second cover 212.

[0079] According to an embodiment, the hinge housing (or hinge cover) 23 may be coupled to a hinge portion connecting the first frame 211 and the second frame 221. Figure 2 ) is switched to the folded state (see Figure 3), due to the change in the relative position between the first shell 21 and the second shell 22 connected to each other via the hinge part, and the change in the state of the hinge part coupled to the hinge shell 23, the gap between the first shell 21 and the second shell 22 is opened on the side opposite to the third display area ③, and the hinge shell 23 can be exposed to the outside through the opened gap. In the folded state of the electronic device 2, the hinge shell 23 can be a part of the outside that covers the inside of the electronic device 2 through the opened gap between the first shell 21 and the second shell 22. The hinge shell 23 is Figure 3 When the electronic device 2 is switched from the folded state to the unfolded state, due to the change in the relative position between the first shell 21 and the second shell 22 connected to each other via the hinge portion and the change in the state of the hinge portion coupled to the hinge shell 23, the gap between the first shell 21 and the second shell 22 on the side opposite to the third display area ③ can be closed, and the hinge shell 23 can be placed in the internal space generated by the combination of the first shell 21 and the second shell 22 and is not exposed to the outside.

[0080] According to an embodiment, the electronic device 2 may include a display 25 placed between the second frame 221 and the second cover 222. The flexible display included in the flexible display module 24 may be interpreted as a "first display", and the display 25 may be interpreted as a "second display". The second cover 222 may be substantially transparent, and the display 25 may be visible through the second cover 222. In the folded state, the electronic device 2 may be configured to display an image through the display 25 instead of the flexible display module 24.

[0081] According to an embodiment, the first cover 212 may include a first bending area 212a that is bent and extends seamlessly toward a first display area ① corresponding to a first edge E1 of the display area 24A. The second cover 222 may include a second bending area 222a that is bent and extends seamlessly toward a second display area ② corresponding to a second edge E2 of the display area 24A. The first bending area 212a and the second bending area 222a may be in the unfolded state of the electronic device 2 (see Figure 2 ) or folded state (see Figure 3) are symmetrically arranged on opposite sides in any state, thereby contributing to a beautiful appearance. In an embodiment, the display 25 may be a flexible display that may be bent and arranged corresponding to the second bending area 222a of the second cover 222. In various embodiments, the first cover 212 may be arranged to be substantially flat without the first bending area 212a. In various embodiments, the second cover 222 may be arranged to be substantially flat without the second bending area 222a. In this case, the display 25 may be a substantially rigid display.

[0082] According to an embodiment, the electronic device 2 may include one or more audio modules (eg, Figure 1 audio module 170 in the example), one or more sensor modules (e.g., Figure 1 sensor module 176 in), one or more camera modules (e.g., Figure 1 , a camera module 180 in the example, one or more lighting modules, one or more input modules (e.g., Figure 1 150) and / or one or more connection end modules (e.g., Figure 1 According to various embodiments, at least one of the above components may be omitted from the electronic device 2, or other components may be additionally included in the electronic device 2. The position or number of components included in the electronic device 2 may vary without being limited to the illustrated example.

[0083] Any of the one or more audio modules may include a microphone placed inside the electronic device 2, for example, corresponding to the microphone hole 301 provided outside the electronic device 2. In the example shown, the microphone hole 301 may be provided on the first side of the first frame 211, and the microphone may be placed in the inner space of the first housing 21. The position or number of the microphone and the microphone hole is not limited to the example shown, and may vary. In various embodiments, the electronic device 2 may include a plurality of microphones for detecting the direction of sound.

[0084] Any of the one or more audio modules may include a first speaker for multimedia playback (or recording playback) placed inside the electronic device 2, for example, corresponding to a first speaker hole 302 disposed outside the electronic device 2. In the example shown, the first speaker hole 302 may be disposed on the second side of the second frame 221, and the first speaker may be placed in the interior space of the second housing 22. Any of the one or more audio modules may include a second speaker (e.g., a call receiver) placed inside the electronic device 2, for example, corresponding to a second speaker hole (e.g., a receiver hole) 303 disposed on the outer surface of the electronic device 2. In the example shown, the second speaker hole 303 may be disposed in the second frame 221 adjacent to the second cover 222, and the second speaker may be placed in the interior space of the second housing 22. The position or number of the speaker and the speaker hole is not limited to the example shown, and may vary. In various embodiments, the microphone hole and the speaker hole may be implemented as a single hole. In various embodiments, a piezoelectric speaker in which the speaker hole is omitted may be provided.

[0085] One or more sensor modules may generate, for example, an electrical signal or data value corresponding to an internal operating state or an external environmental state of the electronic device 2. In an embodiment, one of the one or more sensor modules may include an optical sensor 304, which is placed in the internal space of the second housing 22 corresponding to the second cover 212. The optical sensor 304 may be placed to align with an opening provided in the display 25 or at least partially inserted into the opening. External light may reach the optical sensor through the second cover 222 and the opening provided in the display 25. The optical sensor 304 may include, for example, a proximity sensor or an illumination sensor. The number or position of the optical sensors is not limited to the example shown and may vary.

[0086] According to various embodiments, the optical sensor 304 may be placed in the interior space of the second housing 22 to overlap at least a portion of the display area of ​​the display 25 when viewed from above the second cover 222. In this case, the optical sensor 304 or the location of the optical sensor 304 may not be visually obvious (or exposed) while still allowing the sensing function of the optical sensor 304 to be performed. In an embodiment, the optical sensor 304 may be placed on the rear surface of the display 25 or below or under the display 25, and the optical sensor 304 or the location of the optical sensor 304 may not be visually obvious (or exposed). In various embodiments, the optical sensor 304 may be placed to align with or at least partially insert into a recess provided on the rear surface of the display 25. Some areas of the display 25 that at least partially overlap with the optical sensor 304 may include a different pixel structure and / or wiring structure than other areas. For example, some areas of the display 25 that at least partially overlap with the optical sensor 304 may have a different pixel density than other areas. The pixel structure and / or wiring structure formed in some areas of the display 25 that at least partially overlap with the optical sensor 304 can reduce light loss between the outside and the optical sensor 304. For another example, a plurality of pixels may not be arranged in some areas of the display 25 that at least partially overlap with the optical sensor 304.

[0087] According to various embodiments, various other sensors (not limited to optical sensor 304, such as a proximity sensor or a light sensor) may be placed to correspond to the opening provided in display 25, or may be placed on the rear surface of display 25 or under or below display 25. For example, an optical, electrostatic, or ultrasonic biometric sensor (e.g., a fingerprint sensor) may be placed to correspond to the opening provided in display 25, or may be placed on the rear surface of display 25 or under or below display 25.

[0088] According to various embodiments, various sensors may be placed to correspond to the openings provided in the flexible display module 24 , or may be placed on the rear surface of the flexible display module 24 , or may be placed under or below the flexible display module 24 .

[0089] According to various embodiments, the electronic device 2 may include various other sensors (e.g., a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a temperature sensor, or a humidity sensor), and their positions may vary.

[0090] According to an embodiment, one or more camera modules may include one or more lenses, image sensors and / or image signal processors. One or more camera modules may include, for example, a first camera module 305, a second camera module 306, a third camera module 307 and / or a fourth camera module 308.

[0091] According to an embodiment, the first camera module 305 may be placed in the inner space of the second housing 22 to correspond to the second cover 222. The first camera module 305 may be placed to align with an opening provided in the display 25 or at least partially inserted into the opening. External light may reach the first camera module 305 through the second cover 222 and the opening in the display 25. The opening of the display 25 aligned with or overlapped by the first camera module 305 may be provided in the form of a through hole, as in the example shown. In various embodiments, the opening of the display 25 aligned with or overlapped by the first camera module 305 may be provided in the form of a notch.

[0092] According to various embodiments, the first camera module 305 may be placed in the internal space of the second housing 22 to overlap at least a portion of the display area of ​​the display 25 when viewed from above the second cover 222. In this case, the position of the first camera module 305 or the first camera module 305 itself may allow the image capture function to be performed while the first camera module 305 remains visually inconspicuous (or unexposed) or invisible. In an embodiment, the first camera module 305 may be placed on the rear surface of the display 25 or below or under the display 25, and the first camera module 305 or the position of the first camera module 305 may be visually inconspicuous (or unexposed) or invisible. In various embodiments, the first camera module 305 may be placed to align with a recess provided on the rear surface of the display 25 or at least partially inserted into the recess. The first camera module 305 may include, for example, a hidden display rear camera (e.g., an under-screen camera (UDC)). The portion of the display 25 that at least partially overlaps with the first camera module 305 may include a different pixel structure and / or wiring structure compared to other areas. For example, a portion of the display 25 that at least partially overlaps the first camera module 305 may have a different pixel density than other areas. A pixel structure and / or a wiring structure disposed in a portion of the display 25 that at least partially overlaps the first camera module 305 may reduce light loss between the outside and the optical sensor. As another example, a plurality of pixels may not be disposed in a portion of the display 25 that at least partially overlaps the first camera module 305.

[0093] According to an embodiment, the second camera module 306, the third camera module 307, or the fourth camera module 308 may be placed in the internal space of the first housing 21, corresponding to the first cover 212. The first cover 212 may include a camera cover portion (e.g., a camera decoration portion) provided corresponding to the second camera module 306, the third camera module 307, and the fourth camera module 308. The camera cover portion may include a camera hole (or light-transmitting area) provided corresponding to the second camera module 306, a camera hole (or light-transmitting area) provided corresponding to the third camera module 307, and a camera hole (or light-transmitting area) provided corresponding to the fourth camera module 308. The number or position of the camera modules provided corresponding to the first cover 213 may not be limited to the illustrated example, and may vary. The second camera module 306, the third camera module 307, and the fourth camera module 308 may have different properties (e.g., field of view) or functions from each other. The second camera module 306, the third camera module 307, and the third camera module 308 may provide different viewing angles (or lenses with different viewing angles), and the electronic device 2 may selectively use the corresponding camera module based on the user's selection of the viewing angle. Any of the second camera module 306, the third camera module 307, and the third camera module 308 may include a wide-angle camera module, a telephoto camera module, a color camera module, a monochrome camera module, or an infrared (IR) camera (e.g., a time-of-flight (TOF) camera or a structured light camera) module. In various embodiments, the IR camera module may also operate as at least a part of the sensor module.

[0094] According to an embodiment, one of the one or more light modules may include a flash 309 placed in the inner space of the first housing 21, corresponding to a flash hole (or light-transmitting area) provided in the camera cover portion of the first cover 212. The flash 309 may include a light source for the second camera module 306, the third camera module 307, and / or the fourth camera module 308. The flash 309 may include, for example, a light emitting diode (LED) or a xenon lamp.

[0095] According to various embodiments, one of the one or more lighting modules (eg, LED, IR LED, or Xenon lamp) may be configured to provide status information of the electronic device 2 in the form of light. In various embodiments, the lighting module may provide a light source that operates in conjunction with the operation of the first camera module 305.

[0096] According to an embodiment, one or more input modules may include a first key input device 310 or a second key input device 311. In the example shown, the first key input device 310 or the second key input device 311 may be placed in an opening provided on a first side of the first frame 211. The position or number of the input modules may vary, without being limited to the example shown. In various embodiments, the electronic device 2 may not include some or all of the key input devices, and the key input devices not included may be implemented as soft keys via the flexible display module 24 or the display 25. In various embodiments, the input module or the key input device may include at least one sensor module.

[0097] One of the one or more connection end modules (or connector modules or interface end modules) may include a connector (or interface end) placed inside the electronic device 2, for example, corresponding to a connector hole 312 provided on the outside of the electronic device 2. In the example shown, the connector hole 312 may be provided on the first side of the first frame 211. The position or number of the connection end modules may vary, without limitation to the example shown. The electronic device 2 may send and / or receive power and / or data to an external electronic device electrically connected to the connector. In an embodiment, the connector may include a USB connector or an HDMI connector. In various embodiments, one of the one or more connection end modules may include an audio connector (e.g., a headphone connector or a headphone connector) and a connector hole corresponding to the audio connector provided on the outside of the electronic device 2. In various embodiments, one of the one or more connection end modules may include a connector for a memory card placed inside the electronic device 2 and a connector hole corresponding to the connector for a memory card provided on the outside of the electronic device 2.

[0098] According to various embodiments, the electronic device 2 may include a detachable pen input device (e.g., an electronic pen, a digital pen, or a stylus pen) (not shown). The pen input device may be implemented to be inserted into, for example, the internal space of the first housing 21 or the second housing 22. As another example, the pen input device may be attached to or detached from the hinge housing 23. The hinge housing 23 may include a recess, and the pen input device may be fitted into the recess.

[0099] The electronic device 2 may further include various components according to the form in which it is provided. Although all of these components cannot be listed due to various modifications to the components according to the convergence trend of the electronic device 2, components equivalent to the above components may be further included in the electronic device 2. In various embodiments, specific components may be excluded from the above components or replaced with other components according to the provided form of the electronic device.

[0100] Figure 4 A partially exploded perspective view of an electronic device 2 in an unfolded state according to an embodiment of the present disclosure is shown. Figure 5 A view showing a foldable housing 20 of an electronic device 2 in an unfolded state according to an embodiment of the present disclosure is shown. Figure 6 A cross-sectional view showing an unfolded state of the electronic device 2 ( 601 ) and a cross-sectional view showing a folded state of the electronic device 2 ( 602 ) according to an embodiment of the present disclosure are shown.

[0101] Reference Figure 4 and Figure 5 , the electronic device 2 may include a flexible display module 24 and a foldable housing 20 .

[0102] According to an embodiment, the foldable shell 20 may include a first frame 211, a second frame 221, a first hinge module (or a first hinge assembly) 5A, a second hinge module (or a second hinge assembly) 5B, a third hinge module (or a third hinge assembly) 5C, a hinge shell 23, a first plate 61 and / or a second plate 62.

[0103] According to an embodiment, the first frame 211 may include a first support portion 411 and a first side 412. The first frame 211 may be provided in an integral form including the first support portion 411 and the first side 412. The first support portion 411 is an internal structure placed inside the electronic device 2 to correspond to the first housing 21, and in various embodiments, may be referred to as various other terms such as "first bracket", "first support", "first support member" or "first support structure". The second frame 221 may include a second support portion 421 and a second side 422. The second frame 221 may be provided in an integral form including the second support portion 421 and the second side 422. The second support portion 421 is an internal structure located inside the electronic device 2 to correspond to the second housing 22, and in various embodiments, may be referred to as various other terms such as "second bracket", "second support", "second support member" or "second support structure". At least a portion of the first frame 211 and / or at least a portion of the second frame 221 may be made of a metal material and / or a non-metal material (e.g., a polymer). The electrical components (or electronic components) or various components related to the electrical components may be arranged on the first frame 211 or the first support portion 411 or supported by the first frame 211 or the first support portion 411. The first support portion 411 may include, for example, a first support area 411A facing the first display area ① and a third support area (not shown) substantially away from the first support area 411A. The first display area ① of the flexible display module 24 may be arranged in the first support area 411A of the first support portion 411. The second support portion 421 may include, for example, a second support area 421A facing the second display area ② and a fourth support area (not shown) substantially away from the second support area 421A. The second display area ② of the flexible display module 24 may be arranged in the second support area 421A of the second support portion 421. The first display area ① can be set in the first supporting portion 411, and the second display area ② can be set in the second supporting portion 421 via various adhesive materials (or adhesive materials) such as thermo-reactive adhesive materials (or thermo-reactive adhesive materials), photo-reactive adhesive materials (or photo-reactive adhesive materials), ordinary adhesive materials (or ordinary adhesive materials) and / or double-sided tapes.

[0104] According to the embodiment, in reference to Figure 2 and Figure 3 The “hinge portion” mentioned in the description may include a first plate 61, a second plate 62, a first hinge module 5A, a second hinge module 5B and / or a third hinge module 5C. The hinge portion may support the third display area ③ of the flexible display module 24 in the unfolded state of the electronic device 2.

[0105] According to various embodiments, the electronic device 2 may include a first housing 21 (see Figure 2) in the inner space corresponding to (or facing) the first cover 212 (see Figure 2 ) of the first housing. The first internal support may cover and protect components such as a printed circuit board disposed between, for example, the first support portion 411 and the first cover 212. In various embodiments, the first internal support may include a non-metallic material, and a conductive pattern used as an antenna radiator may be disposed on the first internal support. The first frame 211 may be referred to as a "first front housing", and the first internal support may be referred to as a "first rear housing".

[0106] According to various embodiments, the electronic device 2 may include a second housing 22 (see Figure 2 ) in the inner space corresponding to (or facing) the second cover 222 (see Figure 2 ) of the second inner support member. The second inner support member may cover and protect components, such as a printed circuit board, disposed between, for example, the second support portion 421 and the first cover 222. The second frame 221 may be referred to as a "second front housing", and the second inner support member may be referred to as a "second rear housing".

[0107] According to an embodiment, referring to the cross-sectional view of the flexible display module 24 Fig.24 S, the flexible display module 24 may include a flexible display 240, a transparent cover 245, an optically transparent adhesive member (or an optically transparent adhesive member) 246 and / or a supporting sheet 247. For example, the flexible display 240 may be bonded to the transparent cover 245 via an optically transparent adhesive member 246 (e.g., an optically transparent adhesive OCA, an optically transparent resin OCR, or an optically elastic resin (super view resin, SVR)). The transparent cover 245 (e.g., a window) may cover the flexible display 240 to protect the flexible display 240 from external influences. The transparent cover 245 may be provided in the form of a thin flexible film (e.g., a thin film layer). The transparent cover 245 may include, for example, a plastic film (e.g., a polyimide film) or a thin film glass (e.g., ultra-thin glass (UTG)). In some embodiments, the transparent cover 245 may include a plurality of layers. For example, the transparent cover 245 may be in the form of various coatings provided on the plastic film or the thin film glass. The transparent cover 245 may be in the form of, for example, at least one protective layer or coating including a polymer material (e.g., polyester (PET), polyimide (PI), or thermoplastic polyurethane (TPU)) provided on a plastic film or a thin film glass. In some embodiments, the transparent cover 245 and the optically transparent adhesive member 246 may be defined or interpreted as a part of the flexible display 240. In some embodiments, the transparent cover 246 may be interpreted as a part of the foldable housing 20 (see Figure 2) instead of the flexible display module 24. The flexible display 240 may include, for example, a display panel 241, a base film 242, a lower panel 243, and / or an optical layer 244. The display panel 241 may be placed between the optical layer 244 and the base film 242. The base film 242 may be placed between the display panel 241 and the lower panel 243. The optical layer 244 may be placed between an optically transparent adhesive member 246 and the display panel 241. Various polymer adhesive materials (or adhesive members) or bonding materials (or adhesive members) may be provided between the display panel 241 and the base film 242, between the base film 242 and the lower panel 243, and / or between the display panel 241 and the optical layer 244. The display panel 241 may include, for example, a light emitting layer 241a, a thin film transistor (TFT) film (or TFT substrate) 241b, and / or an encapsulation (e.g., a thin film encapsulation (TFE)) 241c. The light-emitting layer 241a may include, for example, a plurality of pixels implemented by a light-emitting element such as an organic light-emitting diode (OLED) or a micro-LED. The light-emitting layer 241a may be disposed on the TFT film 241b by organic evaporation. The TFT film 241b may be placed between the light-emitting layer 241a and the base film 242. The TFT film 241b may refer to a film structure in which at least one TFT is disposed on a flexible substrate (e.g., a PI film) by a series of processes such as deposition, patterning, and / or etching. At least one TFT may control the current to the light-emitting element of the light-emitting layer 241a to turn on or off the pixel or adjust the brightness of the pixel. At least one TFT may be implemented as, for example, an amorphous silicon (a-Si) TFT, a liquid crystal polymer (LCP) TFT, a low temperature polycrystalline oxide (LTPO) TFT, or a low temperature polycrystalline silicon (LTPS) TFT. In an embodiment, the display panel 241 may include a storage capacitor that may maintain a voltage signal to a pixel, maintain a voltage applied to a pixel within a frame, or reduce a change in the gate voltage of the TFT caused by a leakage current during the light-emitting time. By a routine (e.g., initialization or data writing) for controlling at least one TFT, the storage capacitor can maintain the voltage applied to the pixel at regular time intervals. In an embodiment, the display panel 241 can be implemented based on OLED, and the encapsulation 241c can cover the light-emitting layer 241a. The organic materials and electrodes that emit light in the OLED may be very sensitive to oxygen and / or moisture reactions and may lose their luminous properties. Therefore, in order to reduce or prevent this phenomenon, the encapsulation 241c can seal the light-emitting layer 241a to prevent oxygen and / or moisture from penetrating into the OLED. The base film 242 may include a flexible film made of a polymer or plastic such as polyimide or polyester (PET). The base film 242 can support and protect the display panel 241. In some embodiments, the base film 242 may be referred to as a "protective film", "back film" or "backplane". The lower panel 243 may include multiple layers for various functions.Various polymer adhesive materials (or adhesive materials) (not shown) may be provided between adjacent layers of the plurality of layers included in the lower panel 243. The lower panel 243 may include, for example, a light shielding layer 243a, a buffer layer 243b and / or a lower layer 243c. The light shielding layer 243a may be placed between the base film 242 and the buffer layer 243b. The buffer layer 243b may be placed between the light shielding layer 243a and the lower layer 243c. The light shielding layer 243a may block at least a portion of the light incident from the outside. For example, the light shielding layer 243a may also include an embossed layer. The embossed layer may be a black layer including an uneven pattern. The buffer layer 243b may mitigate external impacts applied to the flexible display 240. For example, the buffer layer 243b may include a sponge layer or a cushion layer. The lower layer 243c may diffuse, disperse or dissipate heat generated from the electronic device 2 or the flexible display 240. The lower layer 243c may absorb or block electromagnetic waves. The lower layer 243c can reduce the external impact applied to the electronic device 2 or the flexible display 240. For example, the lower layer 243c may include a composite sheet 243d or a copper sheet 243e. In an embodiment, the composite sheet 243d may be a sheet obtained by combining layers or sheets with different properties. For example, the composite sheet 243d may include at least one of polyimide or graphite. The composite sheet 243d may also be replaced by a single sheet including a single material (e.g., polyimide or graphite). The composite sheet 243d may be placed between the buffer layer 243b and the copper sheet 243e. The copper sheet 243e may be replaced by various other metal sheets. In some embodiments, at least a portion of the lower layer 243c is a conductive member (e.g., a metal plate) that can help enhance the rigidity of the electronic device 2 and can be used to block environmental noise and dissipate heat emitted from surrounding heat generating components (e.g., display drive circuits) (e.g., display driver integrated circuits (DDIs)). For example, the conductive layer may include at least one of copper (Cu), aluminum (Al), stainless steel (SUS), or CLAD (e.g., a laminated member in which SUS and Al are alternately arranged). The lower layer 243c may include various layers for various other functions. According to an embodiment (not shown), in addition to the base film 242, at least one additional polymer layer (e.g., a layer including PI, PET, or TPU) may be provided on the rear surface of the display panel 241. In some embodiments, at least one of the multiple layers (e.g., the light shielding layer 243a, the buffer layer 243b, the composite sheet 243d, and the copper sheet 243e) included in the lower panel 243 may be omitted. In some embodiments, the arrangement order of the multiple layers included in the lower panel 243 is not limited to the illustrated embodiment, and various changes may be made. The optical layer 244 may include, for example, a polarizing layer (or polarizer) or a phase delay layer (or phase delay). The polarizing layer and the phase delay layer may improve the outdoor visibility of the screen. For example, the optical layer 244 may selectively allow light emitted from the light source of the display panel 241 and oscillating in a predetermined direction to pass.In some embodiments, a single layer of a combined polarizing layer and a phase delay layer may be provided, and such a layer may be interpreted as a "circular polarizing layer". An optically transparent adhesive member 246 may be placed between the transparent cover 245 and the optical layer 244. In some embodiments, the polarizing layer (or circular polarizing layer) may be omitted, in which case a black pixel defining layer (PDL) and / or a color filter may be provided instead of the polarizing layer. The electronic device 2 may include a touch sensing circuit (e.g., a touch sensor) (not shown). The touch sensing circuit may be implemented as a transparent conductive layer (or film) based on various conductive materials such as indium tin oxide (ITO). In an embodiment, the touch sensing circuit may be provided between the transparent cover 245 and the optical layer 244 (e.g., add-on type). In another embodiment, the touch sensing circuit may be provided between the optical layer 244 and the display panel 241 (e.g., on-cell type). In another embodiment, the display panel 241 may include a touch sensing circuit or a touch-sensitive function (e.g., in-cell type). In some embodiments, the display panel 241 may be based on an OLED and may include a package 241c provided between the light emitting layer 241a and the optical layer 244. The package 241c can be used as a pixel protection layer for protecting multiple pixels of the light-emitting layer 241a. In an embodiment (not shown), the flexible display 240 may include a conductive pattern such as a metal mesh (e.g., an aluminum metal mesh) as a touch sensing circuit disposed on the package 241c between the package 241c and the optical layer 244. For example, in order to correspond to the bending of the flexible display 240, the metal mesh may have greater durability than the transparent conductive layer made of ITO. In some embodiments, the flexible display 240 may further include a pressure sensor (not shown) capable of measuring the intensity (pressure) of the touch. The multiple layers included in the display panel 241 or the lower panel 243 or their laminated structure or laminated order may vary. The flexible display 240 can be implemented by omitting some components or adding other components according to the form or convergence trend in which it is set.

[0108] According to an embodiment, a support sheet (or support plate or support layer) 247 may be provided on the rear surface of the flexible display 240. The rear surface of the flexible display 240 may be a surface located on a side opposite to a surface from which light from the display panel 241 including a plurality of pixels is emitted. The support sheet 247 may be provided (e.g., attached) on the rear surface of the lower panel 243 to cover at least a portion of the lower panel 243 of the flexible display 240. The support sheet 247 may be bonded to the lower panel 243 via an adhesive material or an adhesive material. The adhesive material (or adhesive material) between the flexible display 240 and the support sheet 247 may include, for example, a heat-reactive adhesive material (or heat-reactive adhesive material), a photoreactive adhesive material (or photoreactive adhesive material), a general adhesive material (or general adhesive material) and / or a double-sided tape. As another example, the adhesive material (or adhesive material) may include various polymers such as triazine thiol, dithiopyrimidine or silane compounds, or an organic adhesive material (or organic adhesive material), such as a sealant. The support sheet 247 can contribute to the durability of the flexible display module 24 (eg, rigidity enhancement). The support sheet 247 can reduce the Figure 2 ) may be folded when the load or stress on the flexible display module 24. The support sheet 247 may reduce or prevent the flexible display module 24 from being damaged by the force transmitted when the foldable housing 20 is folded. In an embodiment, the support sheet 247 may include a metal material. The support sheet 247 may include, for example, stainless steel. The support sheet 247 may include various other metal materials. In various embodiments, the support sheet 247 may include engineering plastics.

[0109] According to an embodiment, the support sheet 247 may include a lattice structure (not shown) at least partially overlapping the third display area ③ of the flexible display module 24. The lattice structure may include, for example, a plurality of openings (or slits) arranged in the support sheet 247. The lattice structure may refer to a pattern structure in which a plurality of openings are regularly arranged. The plurality of openings may be periodically arranged, may have substantially the same shape, and may be repeatedly arranged at regular intervals. The lattice structure may reduce the reduction in the flexibility of the third display area (③). In various embodiments, the lattice structure including a plurality of openings may be referred to by another term, such as "opening pattern", "hole pattern" or "lattice pattern". In various embodiments, the support sheet 247 may include a concave pattern (not shown) including a plurality of concave portions instead of the lattice structure. The concave pattern may refer to a pattern structure in which a plurality of cutting concave portions are regularly arranged, and the plurality of cutting concave portions are arranged in a first surface of the support sheet 247 facing the lower panel 243 of the flexible display 240 or on a second surface of the support sheet 247 located opposite to the first surface. In various embodiments, the lattice structure or the concave pattern may extend to a portion of the support sheet 247 corresponding to the first region ① and / or the second region ② of the flexible display module 24. In various embodiments, the support sheet 247 including the lattice structure or the concave pattern or a conductive member corresponding thereto may be provided in a plurality of layers.

[0110] According to various embodiments, the support sheet 247 may suppress electromagnetic interference (EMI) with respect to the flexible display 240. In some embodiments, the support sheet 247 may diffuse or dissipate heat emitted from a heat generating component (e.g., a display driving circuit such as a display driver integrated circuit (DDI) or a DDI chip).

[0111] According to various embodiments, the support sheet 247 may be omitted.

[0112] According to various embodiments, the support sheet 247 may be interpreted as an element separate from the flexible display module 24 .

[0113] According to an embodiment, the first hinge module 5A, the second hinge module 5B, and the third hinge module 5C may interconnect the first frame 211 and the second frame 221. The first frame 211 and the second frame 221 are connected to be rotatable relative to each other through the first hinge module 5A, the second hinge module 5B, and the third hinge module 5C. According to an embodiment, the first hinge module 5A, the second hinge module 5B, and the third hinge module 5C may be arranged along the center line A of the electronic device 2, and the third hinge module 5C may be placed between the first hinge module 5A and the second hinge module 5B. In an embodiment, the third hinge module 5C may be placed to correspond to the center between the first hinge module 5A and the second hinge module 5B (e.g., a point on the center line A substantially equidistant from the first hinge module 5A and the second hinge module 5B). In various embodiments, the number or position of the hinge modules placed corresponding to the center line A of the electronic device 2 may vary, without being limited to the example shown.

[0114] According to an embodiment, the first hinge module 5A may include, for example, a first bracket 51A, a second bracket 52A and / or a bracket connector 53A. The first bracket 51A may be arranged on the first support area 411A of the first frame 211 or coupled to the first support area 411A of the first frame 211 by screw fastening. For screw fastening, the first bracket 51A may include one or more screw holes, and the first support area 411A may include a screw fastening portion aligned one by one with the one or more screw holes of the first bracket 51A. The screw fastening portion may be a boss including an internal thread corresponding to the external thread of the screw. The first bracket 51A of the first hinge module 5A and the first support area 411A of the first frame 211 may be arranged in a matching form to be stably coupled to each other. The second bracket 52A may be arranged on the second support area 421A of the second frame 221 or coupled to the second support area 421A of the second frame 221 by screw fastening. For screw fastening, the second bracket 52A may include one or more screw holes, and the second support area 421A may include one or more screw fastening portions aligned one-to-one with the one or more screw holes of the second bracket 52A. The second bracket 52A of the first hinge module 5A and the second support area 421A of the second frame 221 may be configured to cooperate so as to be stably coupled to each other. The bracket connector 53A may connect the first bracket 51A and the second bracket 52A. The first bracket 51A and the second bracket 52A may be rotatable relative to the bracket connector 53A.

[0115] According to an embodiment, the bracket connector 53A may be configured so that the first frame 211 to which the first bracket 51A is fixed and the second frame 221 to which the second bracket 52A is fixed can rotate at the same angle in opposite directions. The bracket connector 53A may be configured so that the first frame 211 to which the first bracket 51A is fixed and the second frame 221 to which the second bracket 52A is fixed can be maintained after rotating at least a predetermined angle. The bracket connector 53A may have, for example, a free stop function. The bracket connector 53A may be configured to provide a force to allow the first frame 211 to which the first bracket 51A is fixed and the second frame 221 to which the second bracket 52A is fixed to rotate relative to each other.

[0116] The second hinge module 5B may be configured substantially the same as the first hinge module 5A, and may include, for example, a first bracket 51B, a second bracket 52B, and / or a bracket connector 53B. In an embodiment, the second hinge module 5B may be disposed to the electronic device 2 in an arrangement direction opposite to the arrangement direction of the first hinge module 5A. The first bracket 51B of the second hinge module 5B may be disposed on or coupled to the second support area 421A of the second frame 221, and the second bracket 52B of the second hinge module 5B may be disposed on or coupled to the first support area 411A of the first frame 221.

[0117] The third hinge module 5C may be configured substantially the same as the first hinge module 5A, and may include, for example, a first bracket 51C, a second bracket 52C, and / or a bracket connector 53C. In an embodiment, the third hinge module 5C may be provided to the electronic device 2 in the same arrangement direction as the second hinge module 5B. The first bracket 51C of the third hinge module 5C may be provided on the second support area 421A of the second frame 221 or coupled to the second support area 421A of the second frame 221, and the second bracket 52C of the third hinge module 5C may be provided on the first support area 411A of the first frame 211 or coupled to the first support area 411A of the first frame 211. In some embodiments, the third hinge module 5C may be provided to the electronic device 2 in the same arrangement direction as the first hinge module 5A.

[0118] According to an embodiment, the first hinge module 5A, the second hinge module 5B, and the third hinge module 5C may be coupled to the hinge housing 23 via screws. The hinge housing 23 may be connected to the first frame 211 and the second frame 221 via the first hinge module 5A, the second hinge module 5B, and the third hinge module 5C. For screw fastening, the bracket connector 53A of the first hinge module 5A may include one or more screw holes, and the hinge housing 23 may include one or more screw fastening portions aligned one-to-one with the one or more screw holes of the bracket connector 53A. For screw fastening, the bracket connector 53B of the second hinge module 5B may include one or more screw holes, and the hinge housing 23 may include one or more screw fastening portions aligned one-to-one with the one or more screw holes of the bracket connector 53B. For screw fastening, the bracket connector 53C of the third hinge module 5C may include one or more screw holes, and the hinge housing 23 may include one or more screw fastening portions aligned one-to-one with the one or more screw holes of the bracket connector 53C.

[0119] According to an embodiment, the first plate 61 may be placed to correspond to the first frame 211, and the second plate 62 may be placed to correspond to the second frame 221. The first plate 61 and the second plate 62 may have a first width in the direction of the center line A (e.g., the y-axis direction) that is relatively larger than a second width in a direction perpendicular to the above direction, and may overlap the first hinge module 5A, the second hinge module 5B, and the third hinge module 5C. The first plate 61 and the second plate 62 may be coupled to the first hinge module 5A, the second hinge module 5B, and the third hinge module 5C by screw fastening.

[0120] According to an embodiment, the first plate 61 may be coupled to the bracket connector 53A of the first hinge module 5A via a screw to correspond to the first bracket 51A of the first hinge module 5A. For screw fastening, the first plate 61 may include a first screw hole SH11, and the bracket connector 53A may include a first screw fastening portion B11 aligned correspondingly with the first screw hole SH11. The portion of the first plate 61 corresponding to the bracket connector 53A of the first hinge module 5A and the bracket connector 53A may be configured to cooperate so as to be stably coupled to each other. The second plate 62 may be coupled to the bracket connector 53A of the first hinge module 5A via a screw to correspond to the second bracket 52A of the first hinge module 5A. For screw fastening, the second plate 62 may include a second screw hole SH12, and the bracket connector 53A may include a second screw fastening portion B12 aligned correspondingly with the second screw hole SH12. The portion of the second plate 62 corresponding to the bracket connector 53A of the first hinge module 5A and the bracket connector 53A may be configured to cooperate so as to be stably coupled to each other.

[0121] According to an embodiment, the first plate 61 may be coupled to the second hinge module 5B in substantially the same manner as the coupling between the first plate 61 and the first hinge module 5A. The second plate 62 may be coupled to the second hinge module 5B in substantially the same manner as the coupling between the second plate 62 and the first hinge module 5A. The first plate 61 may be coupled to the bracket connector 53B of the second hinge module 5B to correspond to the second bracket 52B of the second hinge module 5B. The second plate 62 may be coupled to the bracket connector 53B of the second hinge module 5B to correspond to the first bracket 51B of the second hinge module 5B.

[0122] According to an embodiment, the first plate 61 may be coupled to the third hinge module 5C in a manner substantially the same as the coupling between the first plate 61 and the first hinge module 5A. The second plate 62 may be coupled to the third hinge module 5C in a manner substantially the same as the coupling between the second plate 62 and the first hinge module 5A. The first plate 61 may be coupled to the bracket connector 53C of the third hinge module 5C to correspond to the second bracket 52C of the third hinge module 5C. The second plate 62 may be coupled to the bracket connector 53C of the third hinge module 5C to correspond to the first bracket 51C of the third hinge module 5C. In some embodiments, when the third hinge module 5C is provided to the electronic device 2 in the same arrangement direction as the first hinge module 5B, the first plate 61 may be coupled to the bracket connector 53C of the first hinge module 5A to correspond to the first bracket 51C of the third hinge module 5C, and the second plate 62 may be coupled to the bracket connector 53C of the third hinge module 5C to correspond to the second bracket 52C of the third hinge module 5C.

[0123] According to an embodiment, the first plate 61 may include a first surface 61A and a third surface (not shown) facing away from the first surface 61A. The second plate 62 may include a second surface 62A and a fourth surface (not shown) facing away from the second surface 62A. The first surface 61A and the second surface 62A may be placed to correspond to the third display area ③ of the flexible display module 24. In the unfolded state of the electronic device 2 (see Figure 2), the first surface 61A of the first plate 61 and the second surface 62B of the second plate 62 may support the third display area ③. The first surface 61A of the first plate 61 may include a flat surface capable of supporting a side area of ​​the third display area ③ about the center line A of the electronic device 2 in the unfolded state of the electronic device 2. The second surface 62A of the second plate 62 may include a flat surface capable of supporting the other side area of ​​the third display area ③ about the center line A of the electronic device 2 in the unfolded state of the electronic device 2. In the unfolded state of the electronic device 2, the first surface 61A of the first plate 61 and the second surface 62A of the second plate 62 may substantially form an angle of about 180 degrees, and may be set to have substantially no difference in height. In the unfolded state of the electronic device 2, even if an external force (e.g., external pressure such as a touch input using a user's finger or a touch input using an electronic pen) is applied to the third display area ③, the third display area ③ may remain flat without sagging due to the support of the first plate 61 and the second plate 62.

[0124] According to an embodiment, the hinge portion may be configured to provide a space in which the electronic device 2 can be moved from the unfolded state (see Figure 2 ) is switched to the folded state (see Figure 3 ) is set in a curved shape that reduces bending stress when the electronic device 2 is switched from the unfolded state to the folded state. The hinge portion may be configured to provide a space in which the third display area ③ may be set in a curved shape that can reduce buckling when the electronic device 2 is switched from the unfolded state to the folded state. In an embodiment, when the electronic device 2 is switched from the unfolded state to the folded state, the third display area ③ may be set in a droplet shape or a dumbbell shape that can reduce breakage or permanent deformation. In the folded state of the electronic device 2, the third display area ③ may be set in a curved shape that can reduce the difference between the compressive stress occurring in a side area of ​​the third display area ③ and the tensile stress occurring in a side area of ​​the third display area ③ relative to the neutral plane 613 (see Figure 6 ) conflicts (e.g., bending stresses).

[0125] Reference Figure 4 and Figure 6 , the electronic device 2 may include a flexible display module 24, a first frame 211, a second frame 221, a first hinge module 5A, a first plate 61 and / or a second plate 62. In an embodiment, the first hinge module 5A may include a first bracket 51A, a second bracket 52A, a first unit 810, a second unit 820, a third unit 830 and a fourth unit 840. The bracket connector 53A (see Figure 4 ) may include a first unit 810, a second unit 820, a third unit 830 and / or a fourth unit 840.

[0126] According to an embodiment, the first hinge module 5A may include a first rotation axis C1 and a second rotation axis C2 for mutual rotational movement between the first bracket 51A and the bracket connector 53A. The first rotation axis C1 and the second rotation axis C2 may be substantially parallel to the center line A of the electronic device 2 and may be spaced apart from each other. The first unit 810 of the bracket connector 53A may be connected to the first bracket 51A to be rotatable around the first rotation axis C1. The first unit 810 of the bracket connector 53A may be slidably connected to the first bracket 51A to be linearly movable in a first linear direction LD1 relative to the first bracket 51A. The second unit 820 of the bracket connector 53A may be connected to the first bracket 51A to be rotatable around the second rotation axis C2. The second unit 820 of the bracket connector 53A may be slidably connected to the first bracket 51A to be linearly movable in a second linear direction LD2 different from the first linear direction LD1 relative to the first bracket 51A. The first linear direction LD1 may be perpendicular to the first rotation axis C1 or the center line A of the electronic device 2, and the second linear direction LD2 may be perpendicular to the second rotation axis C2 or the center line A of the electronic device 2. In an embodiment, when viewed in the direction of the center line A of the electronic device 2 (for example, when viewed in the y-axis direction), the second linear direction LD2 may be substantially parallel to the direction in which the first display area ① of the flexible display module 24 is flatly extended, and may form an acute angle with the first linear direction LD1.

[0127] According to an embodiment, the first hinge module 5A may include a third rotation axis C3 and a fourth rotation axis C4 for mutual rotational movement between the second bracket 52A and the bracket connector 53A. The third rotation axis C3 and the fourth rotation axis C4 may be substantially parallel to the center line A of the electronic device 2 (see Figure 4) and may be spaced apart from each other. The third unit 830 of the bracket connector 53A may be connected to the second bracket 52A to be rotatable around the third rotation axis C3. The third unit 830 of the bracket connector 53A may be slidably connected to the second bracket 52A to be linearly movable in a third linear direction LD3 relative to the second bracket 52A. The fourth unit 840 of the bracket connector 53A may be connected to the second bracket 52A to be rotatable around the fourth rotation axis C4. The fourth unit 840 of the bracket connector 53A may be slidably connected to the first bracket 52A to be linearly movable in a fourth linear direction LD4 different from the third linear direction LD3 relative to the second bracket 52A. The third linear direction LD3 may be perpendicular to the third rotation axis C3 or the center line A of the electronic device 2, and the fourth linear direction LD4 may be perpendicular to the fourth rotation axis C4 or the center line A of the electronic device 2. In an embodiment, when viewed in the direction of a center line A of the electronic device 2 (for example, when viewed in the y-axis direction), the fourth linear direction LD4 may be substantially parallel to the direction in which the second display area ② of the flexible display module 24 is flatly extended, and may form an acute angle with the third linear direction LD3.

[0128] According to an embodiment, the first hinge module 5A may include a first linear motion guide LMG1 so that the first unit 810 and the first bracket 51A are slidable with respect to each other (e.g., linearly movable with respect to each other) in the first linear direction LD1. The first linear motion guide LMG1 may include, for example, a first linear motion guide rail provided on the first bracket 51A, and a portion of the first unit 810 (e.g., a first linear motion slider) slidably placed on the first linear motion guide rail. Due to the first linear motion guide LMG1, the first unit 810 and the first bracket 51A may be stably and slidably connected to each other in the first linear direction LD1. The first hinge module 5A may include a second linear motion guide LMG2 so that the second unit 820 and the first bracket 51A are slidable with respect to each other (e.g., linearly movable with respect to each other) in the second linear direction LD2. The second linear motion guide LMG2 may include, for example, a second linear motion guide rail provided on the first bracket 51A, and a portion of the second unit 820 (e.g., a second linear motion slider) slidably placed on the second linear motion guide rail. Due to the second linear motion guide LMG2, the second unit 820 and the first bracket 51A may be stably slidably connected to each other in the second linear direction LD2.

[0129] According to an embodiment, the first hinge module 5A may include a third linear motion guide LMG3 so that the third unit 830 and the second bracket 52A are slidable with respect to each other (e.g., linearly movable with respect to each other) in the third linear direction LD3. Due to the third linear motion guide LMG3, the third unit 830 and the second bracket 52A may be stably slidably connected to each other in the third linear direction LD3. The first unit 810 and the third unit 830, and the first linear motion guide LMG1 and the third linear motion guide LMG3 may be substantially symmetrically arranged about the center line A of the electronic device 2. The first hinge module 5A may include a fourth linear motion guide LMG4 so that the fourth unit 840 and the second bracket 52A are slidable with respect to each other (e.g., linearly movable with respect to each other) in the fourth linear direction LD4. Due to the fourth linear motion guide LMG4, the fourth unit 840 and the second bracket 52A may be stably slidably connected to each other in the fourth linear direction LD4. The second unit 820 and the fourth unit 840 , and the second linear motion guide LMG2 and the fourth linear motion guide LMG4 may be disposed substantially symmetrically about a center line A of the electronic device 2 .

[0130] According to an embodiment, the first board 61 may be set on the first unit 810 of the bracket connector 53A or coupled to the first unit 810 of the bracket connector 53A, and the second board 62 may be set on the third unit 830 of the bracket connector 53A or coupled to the third unit 830 of the bracket connector 53A.

[0131] According to an embodiment, when the electronic device 2 switches between the unfolded state (see reference numeral “601”) and the folded state (see reference numeral “602”), there may be a rotational movement of the first unit 810 around the first rotation axis C1, a first mutual linear movement (or first mutual sliding) between the first unit 810 and the first bracket 51A via the first linear movement guide LMG1, a rotational movement of the second unit 820 around the second rotation axis C2, and a second mutual linear movement (or second mutual sliding) between the second unit 820 and the first bracket 51A via the second linear movement guide LMG2. When the electronic device 2 switches between the unfolded state and the folded state, there may be rotational movement of the third unit 830 around the third rotation axis C3, third mutual linear movement (or third mutual sliding) between the third unit 830 and the second bracket 52A via the third linear motion guide LMG3, rotational movement of the fourth unit 840 around the fourth rotation axis C4, and fourth mutual linear movement (or fourth mutual sliding) between the fourth unit 840 and the second bracket 52A via the fourth linear motion guide LMG4.

[0132] According to an embodiment, when the electronic device 2 is switched from the unfolded state (see reference numeral “601”) to the folded state (see reference numeral “602”), the first rotation axis C1 and the second rotation axis C2 may be placed further away from the first frame 211 to which the first bracket 51A is fixed, compared to the unfolded state of the electronic device 2. When the electronic device 2 is switched from the unfolded state to the folded state, the first unit 810 to which the first plate 61 is fixed may be placed to retract relative to the first bracket 51A in a direction opposite to the direction to which the third display area ③ of the flexible display module 24 is facing. When the electronic device 2 is switched from the unfolded state to the folded state, the third rotation axis C3 and the fourth rotation axis C4 may be placed further away from the second frame 221 to which the second bracket 52A is fixed, compared to the unfolded state of the electronic device 2. When the electronic device 2 is switched from the unfolded state to the folded state, the third unit 830 to which the second plate 62 is fixed may be placed to retract relative to the second bracket 52A in a direction opposite to the direction to which the third display area ③ of the flexible display module 24 is facing. When the electronic device 2 is switched from the unfolded state to the folded state, the first surface 61A of the first plate 61 and the second surface 62A of the second plate 62 may be placed to face each other and be spaced apart from each other. When the electronic device 2 is switched from the unfolded state to the folded state, due to the retraction of the first unit 810 relative to the first bracket 51A and the retraction of the third unit 830 relative to the second bracket 52A, the first plate 61 coupled to the first unit 810 and the second plate 62 coupled to the third unit 830 may be placed so as not to interfere with the third display area ③ of the flexible display module 24. When the electronic device 2 is switched from the unfolded state to the folded state, due to the retraction of the first unit 810 relative to the first bracket 51A and the retraction of the third unit 830 relative to the second bracket 52A, the width of the space between the first surface 61A of the first plate 61 and the second surface 62A of the second plate 62 in the first direction 611 may be set to allow the third display area ③ to be set to a curved shape capable of reducing bending stress and / or buckling. When the electronic device 2 is switched from the unfolded state to the folded state, the first rotation axis C1 and the second rotation axis C2 may move away from the first frame 211 on which the first display area ① is provided, and the third rotation axis C3 and the fourth rotation axis C4 may move away from the second frame 221 on which the second display area ② is provided, so as to allow the bracket connector 53A to move away from the structure in which the first frame 211 and the second frame 221 face each other in the second direction 612 perpendicular to the first direction 611. When the electronic device 2 is switched from the unfolded state to the folded state, the bracket connector 53A may be placed away from the structure in which the first frame 211 and the second frame 221 may face each other in the second direction 612 to provide a spatial width in the second direction 612 so as to allow the third display area ③ to be provided in a curved shape capable of reducing bending stress and / or buckling.

[0133] According to an embodiment, when the electronic device 2 is switched from the unfolded state to the folded state, the bracket connector 53A may be placed away from the structure in which the first frame 211 and the second frame 221 may face each other in the second direction 612, so as to allow the hinge housing 23 coupled to the bracket connector 53A to be exposed to the outside through the opened gap between the first housing 21 and the second housing 22, as shown in FIG. Figure 3 As shown, the gap between the first housing 21 and the second housing 22 is reduced at the same time.

[0134] According to an embodiment, when the electronic device 2 is switched from a folded state (see reference number "602") to an unfolded state (see reference number "601"), due to the change in the relative position between the first frame 211 and the second frame 221 and the first hinge module 5A, the second hinge module 5B and the third hinge module 5C operating accordingly, the first surface 61A of the first plate 61 and the second surface 62A of the second plate 62 can be placed to support the third display area ③ of the flexible display module 24.

[0135] According to an embodiment, the structure in which the third hinge module 5C between the first hinge module 5A and the second hinge module 5B is coupled to the first plate 61 and the second plate 62 can reduce or prevent the lifting of the first plate 61 and the second plate 62. In various embodiments, a guide rail assembly 6D (see Figure 7 ) to replace the third hinge module 5C.

[0136] Figure 7 Cross-sectional views 701 and 702 of the foldable housing 20 in an unfolded electronic device 2 according to various embodiments of the present disclosure are shown.

[0137] Reference Figure 7 The foldable housing 20 may include a first support portion 411, a second support portion 421, a first plate 61, a second plate 62, a guide rail assembly 5D, a first hinge housing cover 711 and / or a second hinge housing cover 712. The first hinge housing cover 711 may be a first housing 21 (see Figure 2 ) and the second hinge housing cover 712 may be a part of the second housing 22 (see Figure 2 ) part.

[0138] According to an embodiment, the guide rail assembly 5D may be disposed in the hinge housing 23 or coupled to the hinge housing 23. The hinge housing 23 may include a hinge housing 23 in the folded state of the electronic device 2 (see Figure 3) is exposed to the outside and is provided on the other surface on the opposite side, and the guide rail assembly 5D may be provided in the recess of the hinge housing 23 or coupled to the recess of the hinge housing 23. In an embodiment, the guide rail assembly 5D may include a guide rail 51D, a first slider 52D and / or a second slider 53D. The first slider 52D and the second slider 53D may be slidably provided on the guide rail 51D. The guide rail 51D may be coupled to the hinge housing 23 by screw fastening. The first slider 52D may be coupled to the first plate 61 by screw fastening. The second slider 53D may be coupled to the second plate 62 by screw fastening. The guide rail 51D may include a first guide rail and a second guide rail. The first guide rail may be a space provided along a path corresponding to the rotational movement of the first plate 61 coupled with the first slider 52D. The second guide rail may be a space provided along a path corresponding to the rotational movement of the second plate 62 coupled with the second slider 53D. The first slider 52D may include a first slider inserted into the first guide rail 51D and movable under the guidance of the first guide rail. The second slider 53D may include a second slider inserted into the second guide rail of the guide rail structure 51D and movable under the guidance of the second guide rail. The guide rail assembly 5D may reduce the lifting of the first plate 61 and the second plate 62.

[0139] According to an embodiment, the first hinge housing cover 711 may be connected to the first support portion 411. In various embodiments, the first support portion 411 may be provided in a form that also includes a portion corresponding to the first hinge housing cover 711. In this case, the first hinge housing cover 711 may be omitted. The second hinge housing cover 712 may be connected to the second support portion 421. In various embodiments, the second support portion 421 may be provided in a form that also includes a portion corresponding to the second hinge housing cover 712. In this case, the second hinge housing cover 712 may be omitted. The hinge housing 23 in the folded state of the electronic device 2 (see Figure 3 ) may include a curved surface, and the first hinge housing cover 711 and the second hinge housing cover 712 may be provided in a curved shape including a curved portion corresponding to the curved surface. In various embodiments, the first hinge housing cover 711 may be referred to by various other terms (such as "first curved cover"), and the second hinge housing cover 712 may be referred to by various other terms (such as "second curved cover"). In the unfolded state of the electronic device 2 (see Figure 2 ), the first hinge housing cover 711 and the second hinge housing cover 712 may respectively cover opposite sides of the hinge housing 23, and the hinge housing 23 may not be substantially exposed to the outside. In the folded state of the electronic device 2, the hinge housing 23 may be exposed to the outside between the first hinge housing cover 711 and the second hinge housing cover 712.

[0140] Figure 8An exploded perspective view of a first hinge module 5A according to an embodiment of the present disclosure is shown. Fig. 9 A perspective view of a first hinge module 5A according to an embodiment of the present disclosure is shown. Fig.10 A view showing a first unit 810 of a first hinge module 5A according to an embodiment of the present disclosure is shown. Fig.11 A view showing a third unit 830 of the first hinge module 5A according to an embodiment of the present disclosure is shown. Fig.12 A view showing a second unit 820 of a first hinge module 5A according to an embodiment of the present disclosure is shown. Fig.13 A view showing a fourth unit 840 of the first hinge module 5A according to an embodiment of the present disclosure is shown. Fig.14 A view showing a fifth unit 1010 of a first bracket 51A according to an embodiment of the present disclosure is shown. Fig.15 A view showing a seventh unit 1110 of a second bracket 52A according to an embodiment of the present disclosure is shown. Fig.16 A cross-sectional view 1600 of a first circular gear 931 , a second circular gear 941 , a third circular gear 951 , and a fourth circular gear 961 according to an embodiment of the present disclosure is shown.

[0141] Reference Figures 8 to 16 , the first hinge module 5A may include a first unit 810, a second unit 820, a third unit 830, a fourth unit 840, an actuator 900, a first bracket 51A and / or a second bracket 52A. Figure 4 The bracket connector 53A may be an assembly including a first unit 810 , a second unit 820 , a third unit 830 , a fourth unit 840 , and an actuator 900 .

[0142] According to an embodiment, the first unit 810 may be connected to the actuator 900 so as to be rotatable around a first rotation axis C1 relative to the actuator 900. The first rotation axis C1 may be a central axis about which the first unit 810 rotates (e.g., a straight line as a rotation center), and may be provided by a portion to which the first unit 810 and the actuator 900 are rotatably connected. The second unit 820 may be connected to the actuator 900 so as to be rotatable around a second rotation axis C2 relative to the actuator 900. The second rotation axis C2 may be a central axis about which the second unit 820 rotates, and may be provided by a portion to which the second unit 810 and the actuator 900 are rotatably connected. The first rotation axis C1 and the second rotation axis C2 may be substantially parallel to a center line A of the electronic device 2 (see Figure 2 ) and may be spaced apart from each other. The first unit 810 and the second unit 820 may be located at a center line A (see FIG. 2 ) of the electronic device 2. Figure 2 ) direction (for example, the y-axis direction) and are spaced apart from each other.

[0143] According to an embodiment, the third unit 830 may be connected to the actuator 900 so as to be rotatable around a third rotation axis C3 relative to the actuator 900. The third rotation axis C3 may be a central axis around which the third unit 830 rotates (e.g., a straight line as a rotation center), and may be provided by a portion to which the third unit 830 and the actuator 900 are rotatably connected. The fourth unit 840 may be connected to the actuator 900 so as to be rotatable around a fourth rotation axis C4 relative to the actuator 900. The fourth rotation axis C4 may be a central axis around which the fourth unit 840 rotates, and may be provided by a portion to which the fourth unit 840 and the actuator 900 are rotatably connected. The third rotation axis C3 and the fourth rotation axis C4 may be substantially parallel to a center line A of the electronic device 2 (see Figure 2 ) and may be spaced apart from each other. The third unit 830 and the fourth unit 840 may be located at the center line A of the electronic device 2 (see Figure 2 ) direction (eg, the y-axis direction) and are spaced apart from each other. The first unit 810 and the third unit 830 may be spaced apart from each other about a center line A (see FIG. 2 ) of the electronic device 2. Figure 2 ) are substantially symmetrically arranged. The second unit 820 and the fourth unit 840 may be arranged about a center line A (see Figure 2 ) are substantially symmetrically arranged. The first rotation axis C1 of the first unit 810 and the third rotation axis C3 of the third unit 830 may be about a center line A of the electronic device 2 (see Figure 2 ) are placed substantially symmetrically. The second rotation axis C2 of the second unit 820 and the fourth rotation axis C4 of the fourth unit 840 may be about the center line A of the electronic device 2 (see Figure 2 ) are placed essentially symmetrically.

[0144] According to an embodiment, the first bracket 51A may be fastened and coupled to the first support portion 411 of the first frame 211 by screws (see Figure 4 The first hinge module 5A may be connected to the first support portion 411 via a first bracket 51A (see Figure 4 Since the first bracket 51A is fixed to the first supporting portion 411 (see Figure 4 ), so when the state of the electronic device 2 (for example, Figure 2 The expanded state and Figure 3 When the first frame 211 (see Figure 4 ) may be movable together with the first bracket 51A. The first unit 810 and the second unit 820 may be connected to the first bracket 51A to be slidable relative to the first bracket 51A.

[0145] According to an embodiment, the second bracket 52A may be fastened to the second support portion 421 of the second frame 221 by screws (see Figure 4The first hinge module 5A may be connected to the second support portion 421 via a second bracket 52A (see Figure 4 Since the second bracket 52A is fixed to the second supporting portion 421 (see Figure 4 ), so the second frame 221 (see Figure 4 ) can be in the state of the electronic device 2 (for example, in Figure 2 The expanded state and Figure 3 In the embodiment, the first bracket 51A and the second bracket 52A may be moved relative to the center line A of the electronic device 2 (see Figure 2 ) are substantially symmetrically arranged. The third unit 830 and the fourth unit 840 may be connected to the second bracket 52A to be slidable relative to the second bracket 52A.

[0146] According to an embodiment, the actuator 900 may include a first rotation support body (or a first rotation support assembly) 901 and a second rotation support body (or a second rotation support assembly) 902 .

[0147] According to an embodiment, the first rotating support 901 may be connected to the first unit 810 and the third unit 830. The first hinge module 5A may include a first rotational motion guide for mutual rotational motion between the first rotating support 901 and the first unit 810. Through the first rotational motion guide, the first unit 810 may be smoothly rotated relative to the first rotating support 901. The first hinge module 5A may include a second rotational motion guide for mutual rotational motion between the first rotating support 901 and the third unit 830. Through the second rotational motion guide, the third unit 830 may be smoothly rotated relative to the first rotating support 901.

[0148] According to an embodiment, a first rotational motion guide for mutual rotational motion between the first rotational support 901 and the first unit 810 may include a first rotational motion guide rail and a first rotational motion slider 810A, wherein the first rotational motion guide rail is included in the first rotational support 901, and the first rotational motion slider 810A is included in the first unit 810 to correspond to the first rotational motion guide rail. The first rotational motion slider 810A may be placed on the first rotational motion guide rail. When the first rotational motion slider 810A is moved while being guided by the first rotational motion guide rail, the first unit 810 may be rotated around the first rotational support 901. A second rotational motion guide for mutual rotational motion between the first rotational support 901 and the third unit 830 may include a second rotational motion guide rail and a second rotational motion slider 830A, wherein the second rotational motion guide rail is included in the first rotational support 901, and the second rotational motion slider is included in the third unit 830 to correspond to the second rotational motion guide rail. The second rotational motion slider 830A may be placed on the second rotational motion guide rail. When the second rotational motion slider 830A is moved while being guided by the second rotational motion guide rail, the third unit 810 may be rotated around the first rotation support 901 .

[0149] According to an embodiment, the first rotating support body 901 may include a rotating support bracket 910 and a bracket cover 920 coupled to the rotating support bracket 910. The rotating support bracket 910 may be at least partially placed on the hinge housing 23 (see Figure 4 ) between the bracket cover 920. The rotating support bracket 910 can be coupled to the hinge housing 23 by screw fastening. For screw fastening, the rotating support bracket 910 may include a bracket disposed at a position parallel to the center line A of the electronic device 2 (see Figure 2 ) corresponding to the screw hole 918 in the central portion, and the hinge housing 23 (see Figure 4 ) may include a screw fastening portion aligned with the screw hole 918. The first rotating support body 901, the rotating support bracket 910 or the bracket cover 920 may be disposed about the center line A of the electronic device 2 (see Figure 2 ) is a basically symmetrical shape.

[0150] According to an embodiment, the rotating support bracket 910 and the bracket cover 920 may be coupled by snap-fit ​​fastening. For the snap-fit ​​fastening, the rotating support bracket 910 may include a center line A (see FIG. 2 ) of the electronic device 2. Figure 2 ) are placed on opposite sides of a first hook 913 and a second hook 914, and the bracket cover 920 may include a first hook fastening portion (e.g., a first engaging portion) 923 corresponding to the first hook 913 and a first hook fastening portion (e.g., a second engaging portion) 924 corresponding to the second hook 914.

[0151] According to an embodiment, the rotation support bracket 910 and the bracket cover 920 may be coupled by screw fastening. For screw fastening, the bracket cover 920 may be included in the electronic device 2 (see Figure 2 ), and the rotation support bracket 910 may include screw holes 925 and 926 spaced apart from each other in the direction of the center line A (e.g., the y-axis direction) in the center portion corresponding to the center line A of the electronic device 2, and the rotation support bracket 910 may include screw fastening portions 915 and 916 aligned one-to-one with the screw holes 925 and 926. The screw fastening portions 915 and 916 may be provided at the first rotation support body 901 of the first hinge module 5A and the center line A of the electronic device 2 (see Figure 2 ) and may be arranged to be spaced apart from each other in the direction of the center line A. The rotation support bracket 910 may include a first track surface 911 and a second track surface 912 (see Figure 4 ). The first rotational motion slider 810A of the first unit 810 can be slidably placed in the first space between the first track surface 911 and the bracket cover 920, and the first space can be a first rotational motion guide rail that guides the movement of the first rotational motion slider 810A. The first rotational motion slider 810A and the first rotational motion guide rail can be set to a curved shape extending in the circumferential direction for mutually stable rotational movement between the first unit 810 and the first rotation support body 901. The second rotational motion slider 830A of the third unit 830 can be slidably placed in the second space between the second track surface 912 and the bracket cover 920, and the second space can be a second rotational motion guide rail that guides the movement of the second rotational motion slider 830A. The second rotational motion slider 830A and the second rotational motion guide rail can be set to a curved shape extending in the circumferential direction for mutually stable rotational movement between the third unit 830 and the first rotation support body 901. The first rotational motion guide rail and the second rotational motion guide rail, and the first rotational motion slider 810A and the second rotational motion slider 830A can be about the center line A of the electronic device 2 (see Figure 2 ) are substantially symmetrically arranged. The first rotation axis C1 of the first unit 810 can be actually provided by a sliding pair including the first rotation motion slider 810A and the first rotation motion guide rail. The first unit 810 can be rotatable relative to the first rotation support body 901 around the first rotation axis C1, and the degree to which the first rotation motion slider 810A of the first unit 810 is introduced into the first rotation support body 901 (or overlapped with the first rotation support body 901) can be adjusted according to the first frame 211 (see Figure 4 ) and the second frame 221 (see Figure 4). The third rotation axis C3 of the third unit 830 may be actually provided by a sliding pair including a second rotation motion slider 830A and a second rotation motion guide rail. The third unit 830 may be rotatable relative to the first rotation support body 901 around the third rotation axis C3, and the degree to which the second rotation motion slider 830A of the third unit 830 is introduced into the first rotation support body 901 (or overlapped with the first rotation support body 901) may be adjusted according to the first frame 211 (see Figure 4 ) and the second frame 221 (see Figure 4 ) varies depending on the angle between them.

[0152] According to an embodiment, the combination of the rotation support bracket 910, the bracket cover 920, and the first rotational motion slider 810A of the first unit 810 may be configured to prevent the first rotational motion slider 810A from being separated from the first rotation support body 901 while enabling the first rotational motion slider 810A to move within a predetermined path range of the first rotational motion guide rail. The combination of the rotation support bracket 910, the bracket cover 920, and the second rotational motion slider 830A of the third unit 830 may be configured to prevent the second rotational motion slider 830A from being separated from the first rotation support body 901 while enabling the second rotational motion slider 830A to move within a predetermined path range of the second rotational motion guide rail.

[0153] According to an embodiment, the first rotational motion slider 810A of the first unit 810 may include an opening 811 provided corresponding to the first hook 913. The first hook 913 may be inserted into the opening 811. The opening 811 may extend along a moving path of the first rotational motion slider 810A relative to the first rotation support body 901. During the mutual rotational motion between the first unit 810 and the first rotation support body 901, the relative position between the first hook 913 and the opening 811 may change. The opening 811 may prevent the first hook 913 and the first rotational motion slider 810A from interfering with each other during the mutual rotational motion between the first unit 810 and the first rotation support body 901. The second rotational motion slider 830A of the third unit 830 may include an opening 831 provided corresponding to the second hook 914. The second hook 914 may be inserted into the opening 831. The opening 831 may extend along a moving path of the second rotational motion slider 830A relative to the first rotation support body 901. The relative position between the second hook 914 and the opening 831 may change during the mutual rotational movement between the third unit 830 and the first rotation support 901. The opening 831 may prevent the second hook 914 and the second rotational movement slider 830A from interfering with each other during the mutual rotational movement between the third unit 830 and the first rotation support 901.

[0154] According to various embodiments, due to the interference between the first hook 913 and one inner surface of the opening 811, the distance that the first rotational movement slider 810A of the first unit 810 moves in the direction in which it is pulled out from the first rotation support body 901 is limited, and the connection between the first unit 810 and the first rotation support body 901 can be maintained. Due to the interference between the second hook 914 and one inner surface of the opening 831, the distance that the second rotational movement slider 830A of the third unit 830 moves in the direction in which it is pulled out from the first rotation support body 901 is limited, and the connection between the third unit 830 and the first rotation support body 901 can be maintained.

[0155] According to various embodiments, instead of a first rotational movement guide for mutual rotational movement between the first rotation support 901 and the first unit 810, the first unit 810 may be configured to be rotationally movable relative to the first rotation support 901 via a shaft or a pin. Instead of a second rotational movement guide for mutual rotational movement between the first rotation support 901 and the third unit 830, the third unit 830 may be configured to be rotationally movable relative to the first rotation support 901 via a shaft or a pin.

[0156] According to an embodiment, the second rotating support body 902 may be connected to the second unit 820 and the fourth unit 840. The second unit 820 may include a first shaft connector (or a first shaft connecting arm or a first shaft arm) 821 and a second shaft connector (or a second shaft connecting arm or a second shaft arm) 822. The first shaft connector 821 and the second shaft connector 822 may be spaced apart from each other in the direction of the second rotation axis C2 (e.g., the y-axis direction). The first shaft connector 821 and the second shaft connector 822 may be connected to the second rotating support body 902 and may rotate around the second rotation axis C2. The fourth unit 840 may include a third shaft connector (or a third shaft connecting arm or a third shaft arm) 841 and a fourth shaft connector (or a fourth shaft connecting arm or a fourth shaft arm) 842. The third shaft connector 841 and the fourth shaft connector 842 may be spaced apart from each other in the direction of the fourth rotation axis C4 (e.g., the y-axis direction). The third shaft connector 841 and the fourth shaft connector 842 may be connected to the second rotating support body 902 and may rotate around the fourth rotation axis C4.

[0157] According to an embodiment, the second rotation support body 902 may include a first shaft 930 , a second shaft 940 , a third shaft 950 , a fourth shaft 960 , a gear bracket 970 , a cam (or a cam gear) 980 , and / or a plurality of springs 990 .

[0158] According to an embodiment, the first shaft 930 may be connected to the first shaft connector 821 and the second shaft connector 822 of the second unit 820. The first shaft 930 may be placed through a shaft hole provided in the first shaft connector 821 and a shaft hole provided in the second shaft connector 822. The second rotation axis C2 of the second unit 820 may be a central axis of the first shaft 930. The first shaft connector 821 and the second shaft connector 822 may be fixed to the first shaft 930, and the second unit 820 may rotate around the second rotation axis C2 together with the first shaft 930.

[0159] According to an embodiment, the second shaft 940 may be connected to the third shaft connector 841 and the fourth shaft connector 842 of the fourth unit 840. The second shaft 940 may be placed through a shaft hole provided in the third shaft connector 841 and a shaft hole provided in the fourth shaft connector 842. The fourth rotation axis C4 of the fourth unit 840 may be a central axis of the second shaft 940. The third shaft connector 841 and the fourth shaft connector 842 may be fixed to the second shaft 940, and the fourth unit 840 may rotate around the fourth rotation axis C4 together with the second shaft 940.

[0160] According to an embodiment, the first shaft 930 and the second shaft 940 may be rotatably disposed in the gear bracket 970. The gear bracket 970 may stably support the rotation of the first shaft 930 and the second shaft 940. The gear bracket 970 may be connected to the hinge housing 23 (see Figure 4 ) coupling. The gear bracket 970 may include, for example, a first shaft support portion 971, a second shaft support portion 972 and / or a connector 973. The first shaft support portion 971 and the second shaft support portion 972 may be spaced apart from each other in the direction of the second rotation axis C2 and the fourth rotation axis C4 (e.g., the y-axis direction), and the connector 973 may be a portion connecting the first shaft support portion 971 and the second shaft support portion 972 of the gear bracket 970. The first shaft 930 may be placed through a first shaft hole 971a provided in the first shaft support portion 971 and a third shaft hole 972a provided in the second shaft support portion 972. The second shaft 940 may be placed through a second shaft hole 971b provided in the first shaft support portion 971 and a fourth shaft hole 972b provided in the second shaft support portion 972. The connector 973 may be coupled to the hinge housing 23 by screw fastening. For screw fastening, the connector 973 may be included in a position parallel to the center line A (see Figure 2 ) in the center portion corresponding to the electronic device 2 in the direction of the center line A (e.g., the y-axis direction), and the hinge housing 23 may include screw fastening portions (e.g., bosses) aligned one-to-one with the screw holes 973a and 973b. The gear bracket 970 may be disposed about the center line A of the electronic device 2 (see Figure 2 ) is a basically symmetrical shape.

[0161] According to an embodiment, the first shaft 930 may include a first circular gear 931 placed between the first rotating support body 901 and the first shaft supporting portion 971 of the gear bracket 970. The second shaft 940 may include a second circular gear 941 placed between the first rotating support body 901 and the first shaft supporting portion 971 of the gear bracket 970. The first shaft 930 and the second shaft 940 may have substantially the same shape. The rotating support bracket 910 of the first rotating support body 901 may include a first seat portion (or a first shaft seat portion) 917a and a second seat portion (or a second shaft seat portion) 917b. The first seat portion 917a and the second seat portion 917b may be provided in a recessed shape. One end of the first shaft 930 may be placed (or inserted) in the first seat portion 917a. One end of the second shaft 940 may be placed (or inserted) in the second seat portion 917b. One end of the first shaft 930 placed in the first seat portion 917a between the rotating support bracket 910 and the bracket cover 920 may be rotatably supported by the first rotating support body 901. The first seat portion 917a between the rotation support bracket 910 and the bracket cover 920, the first shaft hole 971a of the gear bracket 970, and the third shaft hole 972a of the gear bracket 970 can support the first shaft 930 to be rotatable around the second rotation axis C2. One end of the second shaft 940 placed in the second seat portion 917b between the rotation support bracket 910 and the bracket cover 920 can be rotatably supported by the first rotation support body 901. The second seat portion 917b between the rotation support bracket 910 and the bracket cover 920, the second shaft hole 971b of the gear bracket 970, and the fourth shaft hole 972b of the gear bracket 970 can support the second shaft 940 to be rotatable around the fourth rotation axis C4.

[0162] According to an embodiment, one end of the third shaft 950 may be rotatably disposed in a third seat portion (or third shaft seat portion) 917c disposed in the rotation support bracket 910 of the first rotation support body 901, and the other end of the third shaft 950 may be rotatably disposed in a fifth shaft hole 971c disposed in the first shaft support portion 971 of the gear bracket 970. One end of the third shaft 950 placed in the third seat portion 917c between the rotation support bracket 910 and the bracket cover 920 may be rotatably supported by the first rotation support body 901. The third seat portion 917c between the rotation support bracket 910 and the bracket cover 920 and the fifth shaft hole 971c of the gear bracket 970 may support the third shaft 950 to be rotatable around the fifth rotation axis. One end of the fourth shaft 960 may be rotatably disposed in a fourth seat portion (or fourth shaft seat portion) 917d disposed in the rotation support bracket 910 of the first rotation support body 901, and the other end of the fourth shaft 960 may be rotatably disposed in a sixth shaft hole 971d disposed in the first shaft support portion 971 of the gear bracket 970. One end of the fourth shaft 960 placed in the fourth seat portion 917d between the rotation support bracket 910 and the bracket cover 920 may be rotatably supported by the first rotation support body 901. The fourth seat portion 917d between the rotation support bracket 910 and the bracket cover 920 and the sixth shaft hole 971d of the gear bracket 970 may support the fourth shaft 960 to be rotatable around the sixth rotation axis. The fifth rotation axis of the third shaft 950 and the sixth rotation axis of the fourth shaft 960 may be parallel to the second rotation axis C2 of the first shaft 930 and the fourth rotation axis C4 of the second shaft 940.

[0163] According to an embodiment, the third shaft 950 may include a third circular gear 951. The third circular gear 951 may be placed between the first rotating support body 901 and the first shaft supporting portion 971 of the gear holder 970. The fourth shaft 960 may include a fourth circular gear 961. The fourth circular gear 961 may be placed between the first rotating support body 901 and the first shaft supporting portion 971 of the gear holder 970. The third shaft 950 and the fourth shaft 960 may have substantially the same shape. The third circular gear 951 may be engaged with the first circular gear 931 of the first shaft 930. The fourth circular gear 961 may be engaged with the second circular gear 941 of the second shaft 940. The third circular gear 951 and the fourth circular gear 961 may be engaged with each other. The first circular gear 931, the second circular gear 941, the third circular gear 951, and the fourth circular gear 961 may be, for example, spur gears. When the second unit 820 is rotated around the rotation axis (e.g., the second rotation axis C2) of the first shaft 930, the first circular gear 931 of the first shaft 930 may be rotated in the same direction as the second unit 820. When the fourth unit 840 is rotated around the rotation axis (e.g., the fourth rotation axis C4) of the second shaft 940, the second circular gear 941 of the second shaft 940 may be rotated in the same direction as the fourth unit 840. When the first circular gear 931 is rotated in a first direction and the second circular gear 941 is rotated in a second direction opposite to the first direction, the third circular gear 951 and the fourth circular gear 961 may facilitate transmission and balance of force (e.g., rotational force) between the first circular gear 931 and the second circular gear 941.

[0164] Reference Fig.16 The second rotation axis C2 of the first circular gear 931 and the fourth rotation axis C4 of the second circular gear 941 may be about the center line A of the electronic device 2 (see Figure 2 ) are placed substantially symmetrically. The first circular gear 931 and the second circular gear 941 may have substantially the same shape. The first circular gear 931 and the second circular gear 941 may have, for example, the same number of teeth. The fifth rotation axis C5 of the third circular gear 951 and the sixth rotation axis C6 of the fourth circular gear 961 may be about the center line A of the electronic device 2 (see Figure 2 ) are placed substantially symmetrically. The third circular gear 951 and the fourth circular gear 961 may have substantially the same shape. The third circular gear 951 and the fourth circular gear 961 may have, for example, the same number of teeth.

[0165] According to an embodiment, the third circular gear 951 and the fourth circular gear 961 may have substantially the same shape as the first circular gear 931 and the second circular gear 941. The first circular gear 931, the second circular gear 941, the third circular gear 951 and the fourth circular gear 961 may have, for example, the same number of teeth.

[0166] According to various embodiments, the third circular gear 951 and the fourth circular gear 961 may have different sizes from the first circular gear 931 and the second circular gear 941. The third circular gear 951 and the fourth circular gear 961 may, for example, be smaller than the first circular gear 931 and the second circular gear 941, and may have fewer teeth than the first circular gear 931 and the second circular gear 941. As another example, the third circular gear 951 and the fourth circular gear 961 may be larger than the first circular gear 931 and the second circular gear 941, and may have more teeth than the first circular gear 931 and the second circular gear 941.

[0167] According to an embodiment, an imaginary first straight line 1601 passing through the second rotation axis C2 of the first circular gear 931 and the fourth rotation axis C4 of the second circular gear 941 may be spaced apart from and substantially parallel to an imaginary second straight line 1602 passing through the fifth rotation axis C5 of the third circular gear 951 and the sixth rotation axis C6 of the fourth circular gear 961. The second straight line 1602 may be located closer to the hinge housing 23 than the first straight line 1601 (see Figure 4 In various embodiments, the first circular gear 931, the second circular gear 941, the third circular gear 951, and the fourth circular gear 961 may be positioned such that the first straight line 1601 and the second straight line 1602 are substantially aligned.

[0168] According to an embodiment, the first circular gear 931 , the second circular gear 941 , the third circular gear 951 , and the fourth circular gear 961 may be substantially hidden by the support cover 920 of the first rotating support 901 , such that the gears are substantially invisible.

[0169] According to various embodiments, the bracket cover 920 may include an opening in which a portion of the first circular gear 931 is placed (or inserted) and an opening in which a portion of the second circular gear 941 is placed (or inserted). The opening of the bracket cover 920 may prevent the bracket cover 920 from interfering with the first circular gear 931 and the second circular gear 941. The opening of the bracket cover 920 may help make the first hinge module 5A slender.

[0170] According to various embodiments, the first circular gear 931 may be omitted in response to the state change of the electronic device 2 (for example, in Figure 2 The expanded state in Figure 3 Some teeth included in the second circular gear 941 that do not engage with the fourth circular gear 961 in response to a change in the state of the electronic device 2 may be omitted.

[0171] According to an embodiment, the cam 980 may include a first cam (or a first cam gear) 981 corresponding to the first shaft connector 821 of the second unit 820 and a second cam (or a second cam gear) 982 corresponding to the second shaft connector 822 of the second unit 820. The first cam 981 and the second cam 982 may include a shaft hole through which the first shaft 930 is placed, and may be placed between the first shaft connector 821 and the second shaft connector 822. The first cam 981 may include a first tooth surface having a concave-convex shape facing the first shaft connector 821, and the first shaft connector 821 may include a second tooth surface 821a having a concave-convex shape facing the first tooth surface. The second cam 982 may include a third tooth surface having a concave-convex shape facing the second shaft connector 822, and the second shaft connector 822 may include a fourth tooth surface 822a having a concave-convex shape facing the third tooth surface.

[0172] According to an embodiment, the cam 980 may include a third cam (or a third cam gear) 983 corresponding to the third shaft connector 841 of the fourth unit 840 and a fourth cam (or a fourth cam gear) 945 corresponding to the fourth shaft connector 842 of the fourth unit 840. The third cam 983 and the fourth cam 984 may include a shaft hole through which the second shaft 940 is placed, and may be placed between the third shaft connector 841 and the fourth shaft connector 842. The third cam 983 may include a fifth tooth surface having a concave-convex shape facing the third shaft connector 841, and the third shaft connector 841 may include a sixth tooth surface 841a having a concave-convex shape facing the fifth tooth surface. The fourth cam 984 may include a seventh tooth surface having a concave-convex shape facing the fourth shaft connector 842, and the fourth shaft connector 842 may include an eighth tooth surface 842a having a concave-convex shape facing the seventh tooth surface.

[0173] According to an embodiment, the cam 980 may include a first cam structure (or a first cam component) and a second cam structure (or a second cam component), the first cam structure including a first cam 981 and a third cam 983, and the second cam structure including a second cam 982 and a fourth cam 984. The first shaft 930 and the second shaft 940 may be placed through the first cam structure and the second cam structure. A plurality of springs (e.g., compression springs) 990 may be placed between the first cam structure and the second cam structure. The cam 980 may include a connecting structure (or a connecting component) connecting the first cam structure and the second cam structure. The connecting structure may realize a relative position change between the first cam structure and the second cam structure in the direction of the center line A of the electronic device 2 while connecting the first cam structure and the second cam structure. A plurality of springs 990 may be supported by the connecting structure between the first cam structure and the second cam structure to be stably placed on the first cam structure and the second cam structure. Due to the plurality of springs 990, the first cam 981 may elastically press the first shaft connector 821 of the second unit 820, and the second cam 982 may elastically press the second shaft connector 822 of the second unit 820. Due to the plurality of springs 990 , the third cam 983 may elastically press the third shaft connector 841 of the fourth unit 840 , and the fourth cam 984 may elastically press the fourth shaft connector 842 of the fourth unit 840 .

[0174] According to an embodiment, the plurality of springs 990 may include a first spring, a second spring, a third spring and / or a fourth spring. The first shaft 930 may be placed by the first spring. The second shaft 940 may be placed by the second spring. The third spring and the fourth spring may be placed between the first spring and the second spring.

[0175] According to an embodiment, the actuator 900 may be configured to provide a force to allow the second unit 820 and the fourth unit 840 to rotate relative to each other. The actuator 900 may have a function of allowing the second unit 820 and the fourth unit 840 to rotate at the same angle but in opposite directions. The actuator 900 may have a function of allowing the second unit 820 and the fourth unit 840 to be rotated and maintained at at least one predetermined angle (e.g., a free stop function). The above-mentioned functions of the actuator 900 can be provided by the interaction among the plurality of circular gears 931, 941, 951 and 961, the elastic interaction between the first tooth surface of the first cam 981 and the second tooth surface 821a of the first shaft connector 821 using the elastic interaction of the plurality of springs 990, the elastic interaction between the third tooth surface of the second cam 982 and the fourth tooth surface 822a of the second shaft connector 822 using the elastic interaction of the plurality of springs 990, the elastic interaction between the fifth tooth surface of the third cam 983 and the sixth tooth surface 841a of the third shaft connector 841 using the elastic interaction of the plurality of springs 990, and the elastic interaction between the seventh tooth surface of the fourth cam 984 and the eighth tooth surface 842a of the fourth shaft connector 842 using the elastic interaction of the plurality of springs 990. Since the first unit 810 and the second unit 820 are slidably connected to the first bracket 51A fixed to the first frame 211 (see Figure 4 ), and the third unit 830 and the fourth unit 840 are slidably connected to the second bracket 52A fixed to the second frame 221 (see Figure 4 ), thus the above-mentioned function of the actuator 900 can be basically provided for the mutual rotational movement between the first frame 211 and the second frame 221.

[0176] According to an embodiment, the first unit 810 and the first bracket 51A may be connected to be slidable with respect to each other in a first linear direction LD1 when viewed in a direction of a first rotation axis C1 (e.g., a y-axis direction) of the first unit 810. The second unit 820 and the first bracket 51A may be connected to be slidable with respect to each other in a second linear direction LD2 different from the first linear direction LD1 when viewed in a direction of a second rotation axis C2 (e.g., a y-axis direction) of the second unit 820.

[0177] According to an embodiment, when viewed in the direction of the third rotation axis C3 of the third unit 830 (e.g., the y-axis direction), the third unit 830 and the second bracket 52A may be connected to be slidable with respect to each other in a third linear direction LD3. When viewed in the direction of the fourth rotation axis C4 of the fourth unit 840 (e.g., the y-axis direction), the fourth unit 840 and the second bracket 52A may be connected to be slidable with respect to each other in a fourth linear direction LD4 different from the third linear direction LD3. The first linear direction LD1 in which the first unit 810 slides relative to the first bracket 51A and the third linear direction LD3 in which the third unit 830 slides relative to the second bracket 52A may be about the center line A of the electronic device 2 (see FIG. 2 ). Figure 2 The second linear direction LD2 in which the second unit 820 slides relative to the first bracket 51A and the fourth linear direction LD4 in which the fourth unit 840 slides relative to the second bracket 52A may be about the center line A of the electronic device 2 (see Figure 2 ) are substantially symmetrically arranged. Due to the combination of the first rotation axis C1, the second rotation axis C2, the third rotation axis C3 and the fourth rotation axis C4, when the first frame 211 (see Figure 4 ) and the second frame 221 (see Figure 4 ) changes, the first unit 810 and the second unit 820 can move linearly relative to the first bracket 51A while rotating relative to the actuator 900, and the third unit 830 and the fourth unit 840 can move linearly relative to the second bracket 52A while rotating relative to the actuator 900.

[0178] According to an embodiment, the first linear direction LD1 in which the first bracket 51A and the first unit 810 slide relative to each other may be set such that when the first unit 810 moves along the first frame 211 (see Figure 4 ) and the second frame 221 (see Figure 4 ) and rotate around the first rotation axis C1, the first bracket 51A and the first unit 810 are smoothly slidable relative to each other while reducing mutual interference (e.g., frictional resistance). Frictional resistance may be, for example, a force that resists movement between contact surfaces when two objects slide relative to each other. The third linear direction LD3 in which the second bracket 52A and the third unit 830 slide relative to each other may be set so that when the third unit 830 moves along the first frame 211 (see Figure 4 ) and the second frame 221 (see Figure 4 ) are changed to rotate about the third rotation axis C3, the second bracket 52A and the third unit 830 are smoothly slidable relative to each other while reducing mutual interference (eg, frictional resistance).

[0179] According to an embodiment, the second linear direction LD2 in which the first bracket 51A and the second unit 820 slide relative to each other may be set such that when the second unit 820 moves along the first frame 211 (see Figure 4 ) and the second frame 221 (see Figure 4 ) is changed and rotates around the second rotation axis C2, the first bracket 51A and the second unit 820 are smoothly slidable relative to each other while reducing mutual interference (e.g., friction resistance). The fourth linear direction LD4 in which the second bracket 52A and the fourth unit 840 slide relative to each other may be set so that when the fourth unit 840 moves along the first frame 211 (see Figure 4 ) and the second frame 221 (see Figure 4 ) are rotated about the fourth rotation axis C4 by changing the angle between the second bracket 52A and the fourth unit 840, the second bracket 52A and the fourth unit 840 are smoothly slidable relative to each other while reducing mutual interference (eg, frictional resistance).

[0180] According to an embodiment, the first hinge module 5A may include a first linear motion guide (eg, Figure 6 The first unit 810 and the first bracket 51A may be slidable relative to each other in the first linear direction LD1 (e.g., linearly movable relative to each other) by the first linear motion guide LMG1 in the first linear motion guide. The first unit 810 and the first bracket 51A may be smoothly and seamlessly slid relative to each other in the first linear direction LD1 through the first linear motion guide. The first hinge module 5A may include a third linear motion guide (e.g., Figure 6 The third unit 830 and the second bracket 52A are slidable relative to each other (e.g., linearly movable relative to each other) in the third linear direction LD3 by means of the third linear motion guide LMG3 in the third linear motion guide. Through the third linear motion guide, the third unit 830 and the second bracket 52A can be smoothly and seamlessly slid relative to each other in the third linear direction LD3.

[0181] According to an embodiment, a first linear motion guide (eg, Figure 6The first linear motion guide LMG1 in the embodiment may include a first linear motion guide rail 1001 and a first linear motion slider 810B, wherein the first linear motion guide rail 1001 is included in the first bracket 51A, and the first linear motion slider 810B is included in the first unit 810 to correspond to the first linear motion guide rail 1001. The first unit 810 may be provided in an integrated form including the first rotary motion slider 810A and the first linear motion slider 810B. The first linear motion slider 810B may be placed on the first linear motion guide rail 1001. By the first linear motion slider 810B being guided and moved by the first linear motion guide rail 1001, the first unit 810 may be movable relative to the first bracket 51A in the first linear direction LD1. The third linear motion guide for the relative linear motion between the third unit 830 and the second bracket 52A may include a third linear motion guide rail 1101 and a third linear motion slider 830B, wherein the third linear motion guide rail 1101 is included in the second bracket 52A, and the third linear motion slider 830B is included in the third unit 830 to correspond to the third linear motion guide rail 1101. The third unit 830 may be provided in an integrated form including the second rotary motion slider 830A and the third linear motion slider 830B. The third linear motion slider 830B may be placed on the third linear motion guide rail 1101. By the third linear motion slider 830B being guided and moved by the third linear motion guide rail 1101, the third unit 830 may be movable relative to the second bracket 52A in the third linear direction LD3.

[0182] According to an embodiment, a first linear motion guide (eg, a first linear motion slider 810B) and a first linear motion guide rail 1001 are provided. Figure 6 The first linear motion guide LMG1 in the embodiment may enable the first unit 810 to move relative to the first frame 211 (see Figure 4 ) of the first bracket 51A, but the rotational movement of the first unit 810 relative to the first bracket 51A can be substantially difficult. The third linear motion guide (e.g., Figure 6 The third linear motion guide LMG3 in the embodiment may enable the third unit 830 to move relative to the second frame 221 (see Figure 4 ) of the second bracket 52A, but the rotational movement of the third unit 830 relative to the second bracket 52A can be substantially difficult. The first linear motion guide and the third linear motion guide can be about the center line A (refer to Figure 2 ) are arranged basically symmetrically.

[0183] According to an embodiment, the first linear motion guide rail 1001 of the first bracket 51A may include a first opening 1001A. The first linear motion slider 810B of the first unit 810 may be placed in the first opening 1001A. The extent to which the first linear motion slider 810B is inserted into the first opening 1001A may vary according to the positions at which the first unit 810 and the first bracket 51A are slid relative to each other in the first linear direction LD1. The first linear motion slider 810B may be provided in a form of being fitted into the first opening 1001A. Due to the combination of the first linear motion slider 810B and the first opening 1001A, the first unit 810 and the first bracket 51A may stably slide relative to each other in the first linear direction LD1. The combination of the first linear motion slider 810B and the first opening 1001A may enable mutual linear motion between the first unit 810 and the first bracket 51A, but may make rotational motion between the first unit 810 and the first bracket 51A substantially difficult.

[0184] According to an embodiment, the first linear motion slider 810B of the first unit 810 may include a plurality of first recesses R11, R12, R13, and R14. The first linear motion guide rail 1001 of the first bracket 51A may include a plurality of first inserts I11, I12, I13, and I14 placed (or inserted) in a one-to-one correspondence with the plurality of first recesses R11, R12, R13, and R14. The plurality of first recesses R11, R12, R13, and R14 may provide a path extending in the first linear direction LD1, and when viewed in the direction of the first rotation axis C1 of the first unit 810 (e.g., the y-axis direction), the first unit 810 and the first bracket 51A are slidable relative to each other along the first linear direction LD1. The plurality of first inserts I11, I12, I13, and I14 may be provided in a form extending in the first linear direction LD1, and when viewed in the direction of the first rotation axis C1 of the first unit 810 (e.g., the y-axis direction), the first unit 810 and the first bracket 51A are slidable relative to each other along the first linear direction LD1. Figure 4 ) and the second frame 221 (see Figure 4) changes, the plurality of first inserts I11, I12, I13, and I14 and the plurality of first recesses R11, R12, R13, and R14 may guide each other in the first linear direction LD1, and the relative positions between the plurality of first inserts I11, I12, I13, and I14 and the plurality of first recesses R11, R12, R13, and R14 may change. Due to the combination (e.g., a sliding pair) of the plurality of first recesses R11, R12, R13, and R14 and the plurality of first inserts I11, I12, I13, and I14, the first linear motion slider 810B and the first linear motion guide rail 1001 of the first bracket 51A may be connected to be stable and mutually slidable in the first linear direction LD1. The combination of the plurality of first recesses R11, R12, R13, and R14 and the plurality of first inserts I11, I12, I13, and I14 may enable mutual linear motion between the first unit 810 and the first bracket 51A, but may make rotational motion between the first unit 810 and the first bracket 51A substantially difficult. In some embodiments, the first linear motion guide rail 1001 of the first bracket 51A may include at least one recess, and the first linear motion slider 810B of the first unit 810 may include at least one insert placed (or inserted) corresponding to the at least one recess.

[0185] According to an embodiment, the third linear motion guide (eg, Figure 6 The third linear motion guide LMG3 in the embodiment may be connected to the first linear motion guide (eg, Figure 6 The first linear motion guide LMG1 in FIG. 1 is about the center line A of the electronic device 2 (see Figure 2 ) are arranged substantially symmetrically. The third linear motion guide may, for example, include a third linear motion slider 830B and a third linear motion guide rail 1101, wherein the third linear motion slider 830B is included in the third unit 830 and the third linear motion guide rail 1101 is included in the second bracket 52A. The third linear motion guide rail 1101 may include a second opening 1101A, and the third linear motion slider 830B may be placed in the second opening 1101A. The third linear motion slider 830B may include a plurality of second recesses R31, R32, R33 and R34. The third linear motion guide rail 1101 may include a plurality of second inserts I31, I32, I33 and I34 placed (or inserted) in a one-to-one correspondence with the plurality of second recesses R31, R32, R33 and R34.

[0186] According to an embodiment, a second linear motion guide (eg, Figure 6 The second linear motion guide LMG2 in the figure may include a pair of second linear motion sliders 820A and 820B and a second linear motion guide rail 1002, wherein the pair of second linear motion sliders 820A and 820B are included in the second unit 820, and the second linear motion guide rail 1002 is included in the first bracket 51A. The second unit 820 may be provided in an integrated form including a first shaft connector 821, a second shaft connector 822, and a pair of second linear motion sliders 820A and 820B. The pair of second linear motion sliders 820A and 820B and the second linear motion guide rail 1002 may be connected to be slidable relative to each other in a second linear direction LD2. The second linear motion guide including a pair of second linear motion sliders 820A and 820B and a second linear motion guide rail 1002 enables the second unit 820 to be fixed to the first frame 211 (see Figure 4 )'s first bracket 51A can linearly move, but can make the rotational movement of the second unit 820 relative to the first bracket 51A substantially difficult.

[0187] According to an embodiment, the first bracket 51A may include a fifth unit 1010 and a sixth unit 1020 coupled to the fifth unit 1010, wherein the fifth unit 1010 includes a first linear motion guide rail 1001. The fifth unit 1010 may include a support portion 1011 extending from the first linear motion guide rail 1001 corresponding to the second unit 820. The second linear motion guide rail 1002 of the first bracket 51A may be provided as a combination of the support portion 1011 of the fifth unit 1010 and the sixth unit 1020. The support portion 1011 of the fifth unit 1010 may be coupled to the sixth unit 1020 by screw fastening.

[0188] According to an embodiment, the support portion 1011 of the fifth unit 1010 may be coupled to the first support portion 411 of the first frame 211 by screw fastening (see Figure 4 ). For screw fastening, the support portion 1011 of the fifth unit 1010 may include screw holes 1012 and 1013, and the first support portion 411 of the first frame 211 (see Figure 4 ) may include a screw fastening portion (e.g., a boss) aligned one-to-one with the screw holes 1012 and 1013.

[0189] According to an embodiment, the sixth unit 1020 may be at least partially placed between the support portion 1011 of the fifth unit 1010 and the first support portion 411 of the first frame 211 (see Figure 4). The sixth unit 1020 may be coupled to the support portion 1011 of the fifth unit 1010 by screw fastening. For screw fastening, the support portion 1011 of the fifth unit 1010 may include a screw hole 1014, and the sixth unit 1020 may include a screw fastening portion 1024 aligned with the screw hole 1014. The support portion 1011 of the fifth unit 1010 and the sixth unit 1020 may be coupled to the first support portion 411 of the first frame 211 by screw fastening (see Figure 4 For screw fastening, the support portion 411 of the fifth unit 1010 (see Figure 4 ) may include screw holes 1015 and 1016, and the sixth unit 1020 may include screw holes 1025 and 1026 aligned with the screw holes 1015 and 1016 in a one-to-one correspondence. The first supporting portion 411 of the first frame 211 (see Figure 4 ) may include a screw fastening portion aligned one-to-one with the screw holes 1025 and 1026 of the sixth unit 1020.

[0190] According to an embodiment, a pair of second linear motion sliders 820A and 820B of the second unit 820 may be inserted between the support portion 1011 of the fifth unit 1010 and the sixth unit 1020. Due to the combination of the support portion 1011 of the fifth unit 1010 and the sixth unit 1020, a space provided between the support portion 1011 of the fifth unit 1010 and the sixth unit 1020 may be configured to guide movement of the pair of second linear motion sliders 820A and 820B relative to the first bracket 51A. Depending on the positions at which the second unit 820 and the first bracket 51A slide relative to each other in the second linear direction LD2, the extent to which the pair of second linear motion sliders 820A and 820B are inserted into the space between the support portion 1011 of the fifth unit 1010 and the sixth unit 1020 may vary. The second unit 820 and the first bracket 51A may be configured to be stably slidable relative to each other in the second linear direction LD2 due to a combination of a pair of second linear motion sliders 820A and 820B, the support portion 1011 of the fifth unit 1010, and the sixth unit 1020. The combination of the pair of second linear motion sliders 820A and 820B, the support portion 1011 of the fifth unit 1010, and the sixth unit 1020 enables the second unit 820 and the first bracket 51A to move linearly relative to each other while making the rotational movement between the second unit 820 and the first bracket 51A substantially difficult.

[0191] According to an embodiment, the space between the support portion 1011 of the fifth unit 1010 and the sixth unit 1020 may provide a path extending in the second linear direction LD2, and when viewed in the direction of the second rotation axis C2 of the second unit 820, the second unit 820 and the first bracket 51A are slidable relative to each other along the second rotation axis C2. When viewed in the direction of the second rotation axis C2 of the second unit 820, a pair of second linear motion sliders 820A and 820B may extend in the second linear direction LD2, and the second unit 820 and the first bracket 51A are slidable relative to each other in the second linear direction LD2. In an embodiment, the sixth unit 1020 may include a first side 1020a, a second side 1020b, and / or a bottom 1020c. The first side 1020a and the second side 1020b may be spaced apart from each other in the direction of the second rotation axis C2, and the bottom 1020c may be a portion of the sixth unit 1020 that connects the first side 1020a and the second side 1020b. The bottom 1020c may be in the form of a plate and may face the support portion 1011 of the fifth unit 1010. The bottom 1020c may include a screw fastening portion 1024 and screw holes 1025 and 1026. The first side 1020a and the second side 1020b may support the support portion 1011 of the fifth unit 1010 and the bottom 1020c, thereby providing a spacing area between the bottom 1020c and the support portion 1011 of the fifth unit 1010. In an embodiment, the screw fastening portion 1023 may protrude to support the support portion 1011 of the fifth unit 1010 to correspond to the screw hole 1014 included in the support portion 1011 of the fifth unit 1010, and may help to stably place the sixth unit 1020 on the fifth unit 1010 together with the first side 1020a and the second side 1020b.

[0192] According to an embodiment, the support portion 1011 of the fifth unit 1010 may include a first protrusion P1 and a second protrusion P2 protruding toward the bottom 1020c of the sixth unit 1020. The bottom 1020c of the sixth unit 1020 may include a first hole H1 corresponding to the first protrusion P1 and a second hole H2 corresponding to the second protrusion P2. An end of the first protrusion P1 may be matched with the first hole H1, and an end of the second protrusion P2 may be matched with the second hole H2. One 820A of the second linear motion sliders included in the second unit 820 may include a first slit SL1 through which the first protrusion P1 is placed. The other 820B of the second linear motion sliders included in the second unit 820 may include a second slit SL2 through which the second protrusion P2 is placed. The first slit SL1 and the second slit SL2 may extend in the second linear direction LD2, and the second unit 820 and the first bracket 51A may be slidable relative to each other along the second linear direction LD2. According to the positions at which the second unit 820 and the first bracket 51A are slid in the second linear direction LD2 , the relative positions of the first protrusion P1 and the first slit SL1 , and the relative positions of the second protrusion P2 and the second slit SL2 may vary.

[0193] According to an embodiment, due to interference between an inner surface of the first slit SL1 and the first protrusion P1 and interference between an inner surface of the second slit SL2 and the second protrusion P2, the distance that a pair of second linear motion sliders 820A and 820B of the second unit 820 move in the direction of being pulled out from the first bracket 51A can be limited, and the connection between the second unit 820 and the first bracket 51A can be maintained.

[0194] According to an embodiment, a fourth linear motion guide (eg, Figure 6 The fourth linear motion guide LMG4 in the embodiment may be connected to a second linear motion guide (eg, Figure 6 The second linear motion guide LMG2 in FIG. 1 is about the center line A of the electronic device 2 (see Figure 2) are substantially symmetrically arranged. The fourth linear motion guide may include, for example, a pair of fourth linear motion sliders 840A and 840B, wherein the pair of fourth linear motion sliders 840A and 840B are included in the fourth unit 840, and the fourth linear motion guide rail 1102 is included in the second bracket 52A. The second bracket 52A may include a seventh unit 1110 and an eighth unit 1120 coupled to the seventh unit 1110, and the seventh unit 1110 includes the second linear motion guide rail 1101. The seventh unit 1110 may include a support portion 1111 extending from the third linear motion guide rail 1101 corresponding to the fourth unit 840. The fourth linear motion guide rail 1102 of the second bracket 52A may be provided as a combination of the support portion 1111 of the seventh unit 1110 and the eighth unit 1120. The seventh unit 1110 may include a plurality of screw holes 1112, 1113, 1114, 1115, and 1116. The eighth unit 1120 may include a screw fastening portion 1124 and screw holes 1125 and 1126. Each of the pair of fourth linear motion sliders 840A and 840B of the fourth unit 840 may include a third slit SL3 and a fourth slit SL4, and the supporting portion 1111 of the seventh unit 1110 may include a third protrusion P3 corresponding to the third slit SL3 and a fourth protrusion P4 corresponding to the fourth slit SL4. The eighth unit 1120 may include a third hole H3 corresponding to the third protrusion P3 and a fourth hole H4 corresponding to the fourth protrusion P4.

[0195] According to the embodiment, the first plate 61 (see Figure 4 ) can be fastened to the first linear motion slider 810B of the first unit 810 by screws. The first linear motion slider 810B may include a first plate 61 (see Figure 4 ) is aligned with the first screw fastening portion B11 of the first screw hole SH11. The second plate 62 (see Figure 4 ) can be coupled to the third linear motion slider 830B of the third unit 830 by screw fastening. The third linear motion slider 830B may include a second plate 62 (see Figure 4 )'s second screw fastening portion B12 aligned with the second screw hole SH12.

[0196] According to various embodiments, the first unit 810 may be referred to as a “first rotating body”, and the third unit 830 may be referred to as a “second rotating body”. The second unit 820 may be referred to as a “first hinge arm” or “first arm”, and the fourth unit 840 may be referred to as a “second hinge arm” or “second arm”.

[0197] According to various embodiments, a lubricant (e.g., grease) may be placed (e.g., applied) between any two components included in the first hinge module 5A to reduce friction, motion transmission loss, or force transmission loss between the components. In various embodiments, in order to reduce friction, motion transmission loss, or force transmission loss between the components, the surfaces of the components may be provided with a lubricating coating (e.g., a coating using various lubricating materials such as Teflon).

[0198] According to various embodiments, the components included in the first hinge module 5A may be made of a material having rigidity or strength (e.g., metal or engineering plastic) that does not substantially deform in response to forces acting on the relative rotational movement between the first shell 21 and the second shell 22.

[0199] Fig.17 2 shows that when the electronic device 2 according to the embodiment of the present disclosure is in an unfolded state (see Figure 2 ) is a perspective view (1701) of the hinge portion 1700 and a view (1702) showing the hinge portion 1700. Fig.18 2 shows that when the electronic device 2 according to the embodiment of the present disclosure is in an unfolded state (see Figure 2 ) shows a view (1801) of the first hinge module 5A, a cross-sectional view (1802) of the first hinge module 5A taken along line DD', and a cross-sectional view (1803) of the first hinge module 5A taken along line EE'. Fig.19 2 shows that when the electronic device 2 according to the embodiment of the present disclosure is in a closed state (see Figure 3 ) is a perspective view (1901) of the hinge portion 1700 and a view (1902) showing the hinge portion 1700. Fig. 20 2 shows that when the electronic device 2 according to the embodiment of the present disclosure is in a closed state (see Figure 3 ) shows a view (2001) of the first hinge module 5A, a cross-sectional view (2002) of the first hinge module 5A taken along line FF', and a cross-sectional view (2003) of the first hinge module 5A taken along line EE'. Fig.21 A view (2101) of the first hinge module 5A, a cross-sectional view (2102) of the first hinge module 5A taken along line H-H', and a cross-sectional view (2103) of the first hinge module 5A taken along line II' are shown when the electronic device 2 according to an embodiment of the present disclosure is in an intermediate state. Fig. 22 A view (2201) showing the electronic device 2 in an unfolded state, a view (2202) showing the electronic device 2 in an intermediate state, and a view (2203) showing the electronic device 2 in a folded state according to an embodiment of the present disclosure are shown.

[0200] Reference Figures 17 to 22 During the switching between the unfolded state and the folded state of the electronic device 2, there may be a rotational movement of the first unit 810 around the first rotation axis C1, a linear movement between the first unit 810 and the first bracket 51A, a rotational movement of the second unit 820 around the second rotation axis C2, and a linear movement between the second unit 820 and the first bracket 51A. During the switching between the unfolded state and the folded state of the electronic device 2, there may be a rotational movement of the third unit 830 around the third rotation axis C3, a linear movement between the third unit 830 and the second bracket 52A, a rotational movement of the fourth unit 840 around the fourth rotation axis C4, and a linear movement between the fourth unit 840 and the second bracket 52A.

[0201] According to an embodiment, when the electronic device 2 is switched from the unfolded state to the folded state, the first rotation axis C1 and the second rotation axis C2 may be placed farther away from the first frame 211 to which the first bracket 51A is fixed, compared to the unfolded state of the electronic device 2 (see Figure 4 ). When the electronic device 2 is switched from the unfolded state to the folded state, the first unit 810 to which the first plate 61 is fixed may be placed to be retracted relative to the first bracket 51A in a direction opposite to the direction toward which the third display area ③ of the flexible display module 24 is facing. When the electronic device 2 is switched from the unfolded state to the folded state, the third rotation axis C3 and the fourth rotation axis C4 may be placed further away from the second frame 221 to which the second bracket 52A is fixed (see FIG. 2 ). Figure 4 ). When the electronic device 2 is switched from the unfolded state to the folded state, the third unit 830 to which the second plate 62 is fixed may be placed to retract relative to the second bracket 52A in a direction opposite to the direction toward which the third display area ③ of the flexible display module 24 is facing. When the electronic device 2 is switched from the unfolded state to the folded state, the first surface 61A of the first plate 61 and the second surface 62A of the second plate 62 may be placed to face each other and be spaced apart from each other. When the electronic device 2 is switched from the unfolded state to the folded state, due to the retraction of the first unit 810 relative to the first bracket 51A and the retraction of the third unit 830 relative to the second bracket 52A, the first direction 2311 (for example, Figure 6The width of the space in the first direction 611 in the middle (in the middle) can be set to allow the third display area ③ to be set to a curved shape capable of reducing bending stress and / or buckling. When the electronic device 2 is switched from the unfolded state to the folded state, the first rotation axis C1 and the second rotation axis C2 can be moved away from the first frame 211 on which the first display area ① is arranged, and the third rotation axis C3 and the fourth rotation axis C4 can be moved away from the second frame 221 on which the second display area ② is arranged, so as to allow the bracket connector 53A to be in a second direction 2312 (for example, perpendicular to the first direction 2311) and the ... Figure 6 When the electronic device 2 is switched from the unfolded state to the folded state, the actuator 900 may be placed away from the structure in which the first frame 211 and the second frame 221 may face each other in the second direction 2312 to provide a spatial width in the second direction 2312, so as to allow the third display area ③ to be set to a curved shape capable of reducing bending stress and / or buckling.

[0202] According to an embodiment, when the electronic device 2 is switched from the unfolded state to the folded state, the actuator 900 may be placed away from the structure in which the first frame 211 and the second frame 221 may face each other in the second direction 2312, so as to allow the hinge housing 23 coupled to the actuator 900 to be exposed to the outside through the opened gap between the first housing 21 and the second housing 22, such as Figure 3 As shown, the gap between the first housing 21 and the second housing 22 is reduced at the same time.

[0203] According to an embodiment, when the electronic device 2 is switched from a folded state to an unfolded state, due to the relative position change between the first frame 211 and the second frame 221 and the first hinge module 5A operating correspondingly thereto, the first surface 61A of the first plate 61 and the second surface 62A of the second plate 62 can be placed to support the third display area ③ of the flexible display module 24.

[0204] Fig.23 2 shows that the electronic device 2 according to various embodiments of the present disclosure is in an unfolded state (see Figure 2 ), a view (2301) of the first hinge module 245A and a cross-sectional view (2302) of the first hinge module 245A taken along line JJ' are shown. Fig.24 A view ( 2401 ) showing the hinge portion 2500 and a cross-sectional view ( 2402 ) of the hinge portion 2500 taken along line KK′ are shown when the electronic device 2 according to various embodiments of the present disclosure is in an unfolded state. Fig.25 2 shows that when the electronic device 2 according to various embodiments of the present disclosure is in a folded state (see Figure 2) shows a view (2501) of the first hinge module 245A and a cross-sectional view (2502) of the first hinge module 245A taken along line LL'. Fig.26 A view ( 2601 ) showing an unfolded state of the electronic device 2 and a view ( 2602 ) showing a folded state of the electronic device 2 according to various embodiments of the present disclosure are shown.

[0205] Reference Figure 23 to Figure 26 , the first hinge module 245A may include a first unit 24810, a second unit 820, a third unit 24830, a fourth unit 840, an actuator 900, a first bracket 2451A, a second bracket 2452A, a first connector 2410 and / or a second connector 2420. Figure 4 The first hinge module 5A of the embodiment can be used according to Fig.24 The first hinge module 245A of the embodiment is replaced. Figure 4 The second hinge module 5B or the third hinge module 5C of the embodiment can be connected with the hinge module according to Fig.24 The first hinge module 245A of the embodiment is substantially the same as that of Figure 8 Compared with the first hinge module 5A of the embodiment, the first hinge module 245A may further include a first connector 2410 and a second connector 2420. The first unit 24810 and the first bracket 2451A of the first hinge module 245A may be according to Figure 8 The first unit 810 and the first bracket 51A of the embodiment of the modification form, corresponding to the first connector 2410. The third unit 24830 and the second bracket 2452A of the first hinge module 245A may be according to Figure 8 The third unit 830 and the second bracket 52A of the embodiment of the present invention correspond to the second connector 2420. The first unit 24810 and the third unit 2843 may be about the center line A of the electronic device 2 (see Figure 2 ) are substantially symmetrically arranged. The first bracket 2451A and the second bracket 2452A may be arranged about the center line A of the electronic device 2 (see Figure 2 ) are arranged basically symmetrically.

[0206] According to an embodiment, the first unit 24810 may be connected to the actuator 900 to be rotatable around the first rotation axis C1. The third unit 24830 may be connected to the actuator 900 to be rotatable around the third rotation axis C3. The second unit 820 may be connected to the actuator 900 to be rotatable around the second rotation axis C2. The fourth unit 840 may be connected to the actuator 900 to be rotatable around the fourth rotation axis C4. The first bracket 2451A may be coupled to the first support portion 411 of the first frame 211 by screw fastening (see Figure 4The second bracket 2451B can be fastened and coupled to the second support portion 421 of the second frame 221 by screws (see Figure 4 ). The first unit 24810 may be slidably connected to the first bracket 2451A to be linearly movable in a first linear direction relative to the first bracket 2451A. The second unit 820 may be slidably connected to the first bracket 2451A to be linearly movable in a second linear direction relative to the first bracket 2451A. The third unit 24830 may be connected to the second bracket 2452A to be linearly movable in a third linear direction relative to the second bracket 2452A. The fourth unit 840 may be slidably connected to the second bracket 2452A to be linearly movable in a fourth linear direction relative to the second bracket 2452A.

[0207] According to an embodiment, the first connector 2410 may connect the first bracket 2451A and the first unit 24810. The first connector 2410 may include a small hole, and the first pin 2411 may be placed through the small hole. One end of the first pin 2411 may be set on a first pin support portion provided in the first bracket 2451A, and the other end of the first pin 2411 may be set on a second pin support portion provided in the first bracket 2451A. The first connector 2410 may rotate around the first pin 2411 relative to the first bracket 2451A. The rotation axis of the first pin 2411 connecting the first connector 2410 and the first bracket 2451A may be substantially parallel to the first rotation axis C1. The first connector 2410 may include a second pin 2412 placed parallel to the first pin 2411 and spaced apart from the first pin 2411. The first unit 810 may include a recessed first pin track PR12 corresponding to the second pin 2412. The second pin 2412 may be inserted into the first pin track PR12. In the unfolded state of the electronic device 2 (see Figure 2 ) and the folded state (see Figure 3 ), the first unit 24810 may move in the first linear direction relative to the first bracket 2451A, and the first connector 24810 may rotate around the first pin 2411 due to the interaction between the second pin 2412 and the first pin track PR12. During the switching between the unfolded state and the folded state of the electronic device 2, the position of the second pin 2412 relative to the first pin track PR12 may change correspondingly to the linear movement of the first unit 24810 relative to the first bracket 2451A.

[0208] According to an embodiment, the second connector 2420 may connect the second bracket 2452A and the second unit 24820. The second connector 2420 may be connected with respect to the center line A of the electronic device 2 (see Figure 2) is disposed substantially symmetrically with the first connector 2410. The second connector 2420 may include a pinhole, and the third pin 2421 may be placed through the pinhole. One end of the third pin 2421 may be disposed on a third pin support portion disposed in the second bracket 2452A, and the other end of the third pin 2421 may be disposed on a fourth pin support portion disposed in the second bracket 2452A. The second connector 2420 may rotate around the third pin 2421 relative to the second bracket 2452A. The rotation axis of the third pin 2421 connecting the second connector 2420 and the second bracket 2452A may be substantially parallel to the third rotation axis C3. The second connector 2420 may include a fourth pin 2422 placed parallel to the third pin 2421 and spaced apart from the third pin 2421. The second unit 820 may include a recessed second pin track PR22 corresponding to the fourth pin 2422. The fourth pin 2422 may be inserted into the second pin track PR22. In the unfolded state of the electronic device 2 (see Figure 2 ) and the folded state (see Figure 3 ), the third unit 24830 may move in the third linear direction relative to the second bracket 2452A, and the second connector 24820 may rotate around the third pin 2421 due to the interaction between the fourth pin 2422 and the second pin track PR22. During the switching between the unfolded state and the folded state of the electronic device 2, the position of the fourth pin 2422 relative to the second pin track PR22 may change according to the linear movement of the third unit 24830 relative to the second bracket 2452A.

[0209] According to an embodiment, the first plate 2561 may be coupled to the first connector 2410 by screw fastening. For the screw fastening, the first plate 2561 may include a screw hole 2561a, and the first connector 2410 may include a screw fastening portion 2415 aligned with the screw hole 2561a.

[0210] According to an embodiment, the second plate 2562 may be coupled to the second connector 2420 by screw fastening. For the screw fastening, the second plate 2562 may include a screw hole 2562a, and the second connector 2420 may include a screw fastening portion 2425 aligned with the screw hole 2562a.

[0211] According to an embodiment, in the unfolded state of the electronic device 2 (see Figure 2 ) and the folded state (see Figure 3), there may be rotational movement of the first unit 24810 around the first rotation axis C1, linear movement between the first unit 24810 and the first bracket 2451A, rotational movement of the second unit 820 around the second rotation axis C2, linear movement between the second unit 820 and the first bracket 2451A, and movement of the first connector 2410 connecting the first unit 24810 and the first bracket 2451A. During the switching between the unfolded state and the folded state of the electronic device 2, there may be rotational movement of the third unit 24830 around the third rotation axis C3, linear movement between the third unit 24830 and the second bracket 2452A, rotational movement of the fourth unit 840 around the fourth rotation axis C4, linear movement between the fourth unit 840 and the second bracket 2452A, and movement of the second connector 2420 connecting the third unit 24830 and the second bracket 2452A.

[0212] According to an embodiment, when the electronic device 2 is switched from the unfolded state to the folded state, the first rotation axis C1 and the second rotation axis C2 may be placed farther away from the first frame 211 to which the first bracket 2451A is fixed, compared to the unfolded state of the electronic device 2 (see Figure 4 ). When the electronic device 2 is switched from the unfolded state to the folded state, the first unit 24810 to which the first plate 2561 is fixed may be placed to retract relative to the first bracket 2451A in a direction opposite to the direction toward which the third display area ③ of the flexible display module 24 is facing. When the electronic device 2 is switched from the unfolded state to the folded state, the third rotation axis C3 and the fourth rotation axis C4 may be placed further away from the second frame 221 to which the second bracket 2452A is fixed (see FIG. 2 ). Figure 4). When the electronic device 2 is switched from the unfolded state to the folded state, the third unit 24830 to which the second plate 2562 is fixed may be placed to retract relative to the second bracket 2452A in a direction opposite to the direction toward which the third display area ③ of the flexible display module 24 is facing. When the electronic device 2 is switched from the unfolded state to the folded state, the first plate 2561 and the second plate 62 may face each other and be spaced apart from each other. When the electronic device 2 is switched from the unfolded state to the folded state, due to the retraction of the first unit 24810 relative to the first bracket 2451A and the movement of the first connector 2410 connecting the first unit 24810 and the first bracket 2451A, the first plate 2561 coupled to the first connector 2410 may be tilted relative to the first bracket 2451A compared to the unfolded state of the electronic device 2 so as not to interfere with the third display area ③ of the flexible display module 24. When the electronic device 2 is switched from the unfolded state to the folded state, due to the retraction of the third unit 24830 relative to the second bracket 2452A and the movement of the second connector 2420 connecting the third unit 24830 and the second bracket 2452A, the second plate 2562 coupled to the second connector 2420 may be tilted relative to the second bracket 2452A compared to the unfolded state of the electronic device 2 so as not to interfere with the third display area ③ of the flexible display module 24. When the electronic device 2 is switched from the unfolded state to the folded state, the width of the space between the first plate 2561 and the second plate 2562 in the first direction 2711 may be set so that the third display area ③ can be set to a curved shape capable of reducing bending stress and / or buckling. In the folded state of the electronic device 2, the space between the first plate 2561 and the second plate 2562 may be set in a form that widens toward the actuator 900. When the electronic device 2 is switched from the unfolded state to the folded state, the first rotation axis C1 and the second rotation axis C2 may move away from the first frame 211 on which the first display area ① is provided. And the third rotation axis C3 and the fourth rotation axis C4 may be moved away from the second frame 221 on which the second display area ② is disposed, so as to allow the actuator 900 to move away from the structure in which the first frame 211 and the second frame 221 face each other in the second direction 2712 perpendicular to the first direction 2711. When the electronic device 2 is switched from the unfolded state to the folded state, the actuator 900 may be placed away from the structure in which the first frame 211 and the second frame 221 may face each other in the second direction 2712 to provide a spatial width in the second direction 2712, so as to allow the third display area ③ to be disposed in a curved shape capable of reducing bending stress and / or buckling.

[0213] According to an embodiment, when the electronic device 2 is switched from the unfolded state to the folded state, the actuator 900 may be placed away from the structure in which the first frame 211 and the second frame 221 may face each other in the second direction 2712, so as to allow the hinge housing 23 coupled to the actuator 900 to be exposed to the outside through the opened gap between the first housing 21 and the second housing 22, as shown in FIG. Figure 3 As shown, the gap between the first housing 21 and the second housing 22 is reduced at the same time.

[0214] According to an embodiment, when the electronic device 2 is switched from a folded state to an unfolded state, due to the change in relative position between the first frame 211 and the second frame 221 and the first hinge module 245A operating correspondingly thereto, the first plate 2561 and the second plate 2562 can be placed to support the third display area ③ of the flexible display module 24.

[0215] According to an exemplary embodiment of the present disclosure, an electronic device (eg, Figure 2 The electronic device 2 may include a first housing (eg, Figure 2 The first shell 21 in the embodiment and the second shell (eg, Figure 2 The electronic device may include a hinge module (eg, Figure 8 The hinge module may include a hinge module configured to rotate about a first axis (eg, Fig. 9 A first unit (eg, Figure 8 The hinge module may include a hinge configured to rotate about a second axis (eg, Fig. 9 A second unit (eg, Figure 8 The hinge module may include a first bracket (eg, a second unit 820 in the hinge module) connected to the first unit and the second unit. Figure 8 The first bracket 51A in the embodiment of the present invention. The first bracket may be fixed to the first housing. The first unit and the first bracket may be connected to be slidable relative to each other in a first linear direction. The second unit and the first bracket may be connected to be slidable relative to each other in a second linear direction different from the first linear direction. When the angle between the first housing and the second housing changes, the first unit and the first bracket may slide relative to each other, and the second unit and the first bracket may slide relative to each other.

[0216] According to an exemplary embodiment of the present disclosure, the electronic device may further include a flexible display module 24. The flexible display module may include a third display area placed corresponding to the hinge module, a first display area extending from the third display area and disposed on the first housing, and a second display area extending from the third display area and disposed on the second housing.

[0217] According to an exemplary embodiment of the present disclosure, the electronic device may further include: a first plate coupled to the first unit, the first plate corresponding to a side area of ​​the third display area with respect to a center line of the electronic device.

[0218] According to an exemplary embodiment of the present disclosure, the hinge module may further include a first connector connecting the first bracket and the first unit. The electronic device may further include a first plate coupled to the first connector, the first plate corresponding to a side area of ​​the third display area about the center line of the electronic device. The first connector may be connected to the first bracket via a first pin parallel to the first rotation axis so as to be rotatable. The first connector may include a second pin parallel to the first pin. The second pin may be placed on a first pin track provided in the first unit.

[0219] According to an exemplary embodiment of the present disclosure, the first linear direction and the second linear direction may be perpendicular to the first rotation axis and form an acute angle with each other.

[0220] According to an exemplary embodiment of the present disclosure, the first unit may include a rotational motion slider placed on a rotational motion guide rail, wherein the rotational motion guide rail is included in the hinge module. The second rotation axis may be provided by a combination of the rotational motion guide rail and the rotational motion slider.

[0221] According to an exemplary embodiment of the present disclosure, the second unit may be connected to a shaft included in the hinge module, and the second rotation axis may be provided by the shaft.

[0222] According to an exemplary embodiment of the present disclosure, the hinge module may include an elastically supported cam gear, and the second unit may be connected to the cam gear corresponding to the first rotation axis.

[0223] According to an exemplary embodiment of the present disclosure, the hinge module may further include a third unit configured to be rotatable around a third rotation axis. The hinge module may further include a fourth unit configured to be rotatable around a fourth rotation axis. The hinge module may further include a second bracket fixed to the second housing. The second bracket may be connected to the third unit and the fourth unit. The third rotation axis may be placed symmetrically with the first rotation axis about the center line of the electronic device. The third unit may be arranged symmetrically with the first unit about the center line of the electronic device. The fourth rotation axis may be placed symmetrically with the second rotation axis about the center line of the electronic device. The fourth unit may be arranged symmetrically with the second unit about the center line of the electronic device. The third unit and the second bracket may be connected to be slidable relative to each other in a third linear direction symmetrical with the first linear direction about the center line of the electronic device. The fourth unit and the second bracket may be connected to be slidable relative to each other in a fourth linear direction symmetrical with the second linear direction about the center line of the electronic device. When the angle between the first housing and the second housing changes, the third unit and the second bracket may slide relative to each other, and the fourth unit and the second bracket may slide relative to each other.

[0224] According to an exemplary embodiment of the present disclosure, the electronic device may further include a flexible display module. The flexible display module may include a third display area placed corresponding to the hinge module, a first display area extending from the third display area and disposed on the first housing, and a second display area extending from the third display area and disposed on the second housing. The electronic device may also include a first plate coupled to the first unit, the first plate corresponding to a side area of ​​the third display area with respect to a center line of the electronic device. The electronic device may also include a second plate coupled to the third unit, the second plate corresponding to another side area of ​​the second display area with respect to the center line of the electronic device.

[0225] According to an exemplary embodiment of the present disclosure, the electronic device may further include a flexible display module. The flexible display module may include a third display area placed corresponding to the hinge module, a first display area extending from the third display area and arranged on the first housing, and a second display area extending from the third display area and arranged on the second housing. The hinge module may also include a first connector connecting the first bracket and the first unit, and a second connector connecting the second bracket and the third unit. The electronic device may also include a first board connected to the first connector and a second board connected to the second connector, wherein the first board corresponds to a side area of ​​the third display area about the center line of the electronic device, and the second board corresponds to the other side area of ​​the third display area about the center line of the electronic device. The first connector may be connected to the first bracket via a first pin parallel to the first rotation axis so as to be rotatable. The first connector may include a second pin parallel to the first pin, and the second pin may be placed on a first pin track provided in the first unit. The second connector may be connected to the second bracket via a third pin parallel to the third rotation axis so as to be rotatable. The second connector may include a fourth pin parallel to the third pin. The fourth pin may be placed on a second pin track provided in the third unit.

[0226] According to an exemplary embodiment of the present disclosure, the hinge module may further include an actuator placed corresponding to the center line of the electronic device. The first unit may be connected to the actuator to be rotatable around a first rotation axis. The second unit may be connected to the actuator to be rotatable around a second rotation axis. The third unit may be connected to the actuator to be rotatable around a third rotation axis. The fourth unit may be connected to the actuator to be rotatable around a fourth rotation axis. The actuator may include a first shaft connected to the second unit and providing the second rotation axis. The actuator may include a second shaft connected to the fourth unit and providing the fourth rotation axis. The actuator may include a third circular gear engaged with the first circular gear included in the first shaft. The actuator may include a fourth circular gear engaged with the third circular gear and the second circular gear included in the second shaft.

[0227] According to an exemplary embodiment of the present disclosure, the actuator includes an elastically supported cam gear, and the first shaft and the second shaft may be connected to the cam gear.

[0228] According to an exemplary embodiment of the present disclosure, the electronic device may further include a hinge housing coupled to the actuator. When the electronic device is switched from the unfolded state to the folded state, the hinge housing may be exposed to the outside through the space between the first housing and the second housing, thereby providing a portion of the outer surface of the electronic device.

[0229] According to an exemplary embodiment of the present disclosure, an electronic device may include a first housing and a second housing. The electronic device may include a hinge module connecting the first housing and the second housing. The hinge module may include a first unit configured to be rotatable around a first rotation axis. The hinge module may include a second unit configured to be rotatable around a second rotation axis. The second rotation axis may be placed parallel to the first rotation axis and spaced apart from the first rotation axis. The hinge module may include a first bracket fixed to the first housing. The first bracket may be connected to the first unit and the second unit. The hinge module may include a third unit configured to be rotatable around a third rotation axis. The hinge module may include a fourth unit configured to be rotatable around a fourth rotation axis. The hinge module may include a second bracket fixed to the second housing. The second bracket may be connected to the third unit and the fourth unit. The third rotation axis may be placed symmetrically with the first rotation axis about a center line of the electronic device. The third unit may be arranged symmetrically with the first unit about the center line of the electronic device. The fourth rotation axis may be placed symmetrically with the second rotation axis about the center line of the electronic device. The fourth unit may be arranged symmetrically with the second unit about the center line of the electronic device. The first unit and the first bracket may be connected to be slidable relative to each other in a first linear direction. The second unit and the first bracket may be connected to be slidable relative to each other in a second linear direction different from the first linear direction. The third unit and the second bracket may be connected to be slidable relative to each other in a third linear direction symmetrical to the first linear direction about a center line of the electronic device. The fourth unit and the second bracket may be connected to be slidable relative to each other in a fourth linear direction symmetrical to the second linear direction about a center line of the electronic device. When the angle between the first shell and the second shell changes, the first unit and the second unit may slide relative to the first bracket, and the third unit and the fourth unit may slide relative to the second bracket.

[0230] According to an exemplary embodiment of the present disclosure, the electronic device may further include a flexible display module. The flexible display module may include a third display area placed corresponding to the hinge module, a first display area extending from the third display area and disposed on the first housing, and a second display area extending from the third display area and disposed on the second housing.

[0231] According to an exemplary embodiment of the present disclosure, the electronic device may further include: a first plate coupled to the first unit, the first plate corresponding to a side area of ​​the third display area with respect to the center line of the electronic device. The electronic device may further include a second plate coupled to the third unit, the second plate corresponding to another side area of ​​the third display area with respect to the center line of the electronic device.

[0232] According to an exemplary embodiment of the present disclosure, the hinge module may further include a first connector connecting the first unit and the first bracket and a second connector connecting the third unit and the second bracket. The electronic device may also include a first plate coupled to the first connector, the first plate corresponding to a side area of ​​the third display area about the center line of the electronic device. The electronic device may also include a second plate coupled to the second connector, the second plate corresponding to the other side area of ​​the third display area about the center line of the electronic device. The first connector may be connected to the first bracket via a first pin parallel to the first rotation axis so as to be rotatable. The first connector may include a second pin parallel to the first pin, and the second pin may be placed on a first pin track provided in the first unit. The second connector may be connected to the second bracket via a third pin parallel to the third rotation axis so as to be rotatable. The second connector may include a fourth pin parallel to the third pin. The fourth pin may be placed on a second pin track provided in the third unit.

[0233] According to an exemplary embodiment of the present disclosure, the hinge module may further include an actuator placed corresponding to the center line of the electronic device. The first unit may be connected to the actuator to be rotatable around the first rotation axis. The second unit may be connected to the actuator to be rotatable around the second rotation axis. The first unit may be connected to the actuator to be rotatable around the first rotation axis. The third unit may be connected to the actuator to be rotatable around the third rotation axis. The fourth unit may be connected to the actuator to be rotatable around the fourth rotation axis. The actuator may include a first shaft. The first shaft may be connected to the second unit and may provide a second rotation axis. The actuator may include a second shaft. The second shaft may be connected to the fourth unit and may provide a fourth rotation axis. The actuator may include a third circular gear engaged with the first circular gear included in the first shaft. The actuator may include a fourth circular gear engaged with the third circular gear and the second circular gear included in the second shaft.

[0234] According to an exemplary embodiment of the present disclosure, the actuator may include an elastically supported cam gear. The first shaft and the second shaft may be connected to the cam gear.

[0235] The embodiments disclosed in the present disclosure and the accompanying drawings are presented only as specific examples to easily describe the technical content and help understand the present disclosure, and are not intended to limit the scope of the present disclosure. Therefore, the scope of the various embodiments of the present disclosure should be interpreted as including changes or modifications of the embodiments other than the embodiments disclosed herein. In addition, it will be understood that any (one or more) embodiments described herein can be used together with any other (one or more) embodiments described herein.

Claims

1. An electronic device, comprising: a first shell and a second shell; as well as A hinge module connects the first shell and the second shell, Wherein, the hinge module comprises: a first unit configured to rotate about a first rotation axis; a second unit configured to rotate about a second rotation axis that is parallel to the first rotation axis and spaced apart from the first rotation axis; and a first bracket connected to the first unit and the second unit and fixed to the first housing, wherein the first unit and the first bracket are connected to be slidable relative to each other in a first linear direction, and the second unit and the first bracket are connected to be slidable relative to each other in a second linear direction different from the first linear direction, Wherein, when the angle between the first housing and the second housing changes, the first unit and the first bracket slide relative to each other, and the second unit and the first bracket slide relative to each other.

2. The electronic device according to claim 1, comprising: The flexible display module includes a third display area placed corresponding to the hinge module, a first display area extending from the third display area and arranged on the first shell, and a second display area extending from the third display area and arranged on the second shell.

3. The electronic device according to claim 2, comprising: The first plate is coupled to the first unit and corresponds to a side area of ​​the third display area with respect to a center line of the electronic device.

4. The electronic device according to claim 2, wherein: The hinge module includes a first connector connecting the first bracket and the first unit, The electronic device includes a first board coupled to the first connector, the first board corresponds to a side area of ​​the third display area about a center line of the electronic device, and The first connector includes a first pin parallel to the first rotation axis and a second pin parallel to the first pin and placed on a first pin track provided in the first unit, and the first connector is rotatably connected to the first bracket via the first pin.

5. The electronic device according to claim 1, wherein: The first linear direction and the second linear direction are perpendicular to the first rotation axis and form an acute angle with each other.

6. The electronic device according to claim 1, wherein: The first unit comprises a rotational movement slider placed in a rotational movement guide rail, the rotational movement guide rail being included in the hinge module, and wherein the second rotation axis is provided by a combination of the rotational movement guide rail and the rotational movement slider.

7. The electronic device according to claim 1, wherein: The second unit is connected to a shaft included in the hinge module, and wherein a second rotation axis is provided by the shaft.

8. The electronic device according to claim 1, wherein: The hinge module includes an elastically supported cam gear, and wherein the second unit is connected to the cam gear corresponding to the first rotation axis.

9. The electronic device according to claim 1, wherein: The hinge module comprises: a third unit configured to rotate about a third rotation axis; a fourth unit configured to rotate about a fourth rotation axis; and a second bracket connected to the third unit and the fourth unit and fixed to the second housing, wherein the third rotation axis is placed symmetrically to the first rotation axis about a center line of the electronic device, wherein the third unit is arranged symmetrically to the first unit about the center line of the electronic device, wherein the fourth rotation axis is arranged symmetrically to the second rotation axis about the center line of the electronic device, wherein the fourth unit is arranged symmetrically with the second unit about the center line of the electronic device, wherein the third unit and the second bracket are connected to be slidable relative to each other in a third linear direction, and the third linear direction is symmetrical with the first linear direction about the center line of the electronic device, wherein the fourth unit and the second bracket are connected to be slidable relative to each other in a fourth linear direction, the fourth linear direction being symmetrical to the second linear direction about a center line of the electronic device, Wherein, when the angle between the first housing and the second housing changes, the third unit and the second bracket slide relative to each other, and the fourth unit and the second bracket slide relative to each other.

10. The electronic device according to claim 9, comprising: a flexible display module, comprising a third display area placed corresponding to the hinge module, a first display area extending from the third display area and disposed on the first housing, and a second display area extending from the third display area and disposed on the second housing; a first plate coupled to the first unit and corresponding to a side area of ​​the third display area with respect to a center line of the electronic device; as well as The second plate, coupled to the third unit, corresponds to the other side area of ​​the second display area with respect to the center line of the electronic device.

11. The electronic device according to claim 9, comprising: The flexible display module includes a third display area placed corresponding to the hinge module, a first display area extending from the third display area and arranged on the first housing, and a second display area extending from the third display area and arranged on the second housing, The hinge module includes a first connector connecting the first bracket and the first unit and a second connector connecting the second bracket and the third unit. Wherein, the electronic device comprises: a first board coupled to the first connector and a second board coupled to the second connector, the first board corresponding to a side area of ​​the third display area with respect to a center line of the electronic device, and the second board corresponding to another side area of ​​the third display area with respect to the center line of the electronic device, wherein the first connector includes a first pin parallel to the first rotation axis and a second pin parallel to the first pin and placed on a first pin track provided in the first unit, the first connector being rotatably connected to the first bracket via the first pin, The second connector includes a third pin parallel to the third rotation axis and a fourth pin parallel to the third pin and placed on a second pin track provided in the third unit, and the second connector is rotatably connected to the second bracket via the third pin.

12. The electronic device according to claim 9, in, The hinge module includes an actuator placed corresponding to a center line of the electronic device, wherein the first unit is connected to the actuator so as to be rotatable around a first rotation axis, wherein the second unit is connected to the actuator so as to be rotatable about a second rotation axis, wherein the third unit is connected to the actuator so as to be rotatable about a third rotation axis, wherein the fourth unit is connected to the actuator so as to be rotatable about a fourth rotation axis, Wherein, the actuator comprises: a first shaft connected to the second unit and configured to provide a second axis of rotation; a second shaft connected to the fourth unit and configured to provide a fourth axis of rotation; a third circular gear engaged with the first circular gear included in the first shaft; and The fourth circular gear is engaged with the second circular gear included in the second shaft and with the third circular gear.

13. The electronic device according to claim 12, wherein: The actuator includes a resiliently supported cam gear, and wherein a first shaft and a second shaft are connected to the cam gear.

14. The electronic device according to claim 12, comprising: a hinge housing coupled to the actuator, When the electronic device is switched from the unfolded state to the folded state, the hinge housing is exposed to the outside through the space between the first housing and the second housing, thereby providing a part of the outer surface of the electronic device.

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