Electronic device comprising foldable housing

Abstract

An electronic device according to an embodiment includes a foldable housing including a first housing, a second housing, and a third housing; a flexible display; a first hinge assembly rotatably connecting the first housing with the second housing; a second hinge assembly rotatably connecting the second housing with the third housing; a first hinge cover surrounding the first hinge assembly; and a second hinge cover surrounding the second hinge assembly.

Description

Electronic devices comprising foldable housings

[0001] The present disclosure relates to an electronic device including a foldable housing.

[0002] An electronic device may include a foldable housing and a flexible display to provide an enhanced user experience. For example, the foldable housing may include a plurality of housings. The foldable housing may have a structure in which the plurality of housings can be folded or unfolded one or more times. For example, the foldable housing may include three housings that are rotatably coupled via two hinges. The flexible display may be at least partially deformable based on the operation of the foldable housing.

[0003] The above information may be provided as background information to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art in connection with the present disclosure.

[0004] The present disclosure is set forth in the appended claims, drawings and respective descriptions, which relate to advantageous embodiments of the present disclosure.

[0005] An electronic device is provided. The electronic device may include a foldable housing including a first housing having a first width, a second housing having a second width shorter than the first width, and a third housing having a third width shorter than the second width. The electronic device may include a flexible display supported by the first housing, the second housing, and the third housing. The electronic device may include a first hinge assembly rotatably connecting the first housing and the second housing. The electronic device may include a second hinge assembly rotatably connecting the second housing and the third housing. The electronic device may include a first hinge cover having a fourth width and surrounding the first hinge assembly. The electronic device may include a second hinge cover having a fifth width shorter than the fourth width and surrounding the second hinge assembly.

[0006] An electronic device is provided. The electronic device may include a foldable housing including a first housing, a second housing, and a third housing. The electronic device may include a flexible display supported by the first housing, the second housing, and the third housing. The electronic device may include a first hinge assembly rotatably connecting the first housing and the second housing. The electronic device may include a second hinge assembly rotatably connecting the second housing and the third housing. The electronic device may include a first hinge cover surrounding the first hinge assembly. The electronic device may include a second hinge cover surrounding the second hinge assembly. In a folded state of the electronic device, a step may be formed between the first housing and the second hinge cover.

[0007] FIG. 1 is a block diagram of an electronic device within a network environment according to one embodiment.

[0008] FIG. 2A illustrates an unfolded state of an electronic device according to one embodiment.

[0009] FIG. 2b illustrates a folded state of an electronic device according to one embodiment.

[0010] FIG. 2c illustrates a flexible display and protective frames of an electronic device according to one embodiment.

[0011] FIG. 3A illustrates a process of transforming an electronic device from an unfolded state to a folded state according to one embodiment.

[0012] FIG. 3B is a cross-sectional view of an electronic device according to one embodiment taken along line A-A' of FIG. 3B.

[0013] FIG. 4a is a cross-sectional view taken along line B-B' of FIG. 3b of an electronic device according to one embodiment.

[0014] Figure 4b schematically illustrates the operation of an electronic device according to a comparative example.

[0015] Figure 4c schematically illustrates the operation of an electronic device according to one embodiment.

[0016] FIG. 5A illustrates a flexible display, a first hinge structure, and a second hinge structure in a folded state.

[0017] Figure 5b schematically illustrates examples of the first deformation region within the folded state.

[0018] FIG. 6 illustrates a flexible display and a first hinge structure of an electronic device according to one embodiment.

[0019] FIG. 7A illustrates a flexible display and a second hinge structure of an electronic device according to one embodiment.

[0020] Figure 7b is a drawing for comparing the folding structure of the second region.

[0021] Figure 8a is an enlarged view of the first deformation region and the second deformation region.

[0022] FIG. 8b illustrates an electronic device according to one embodiment and an electronic device according to a comparative example.

[0023] FIG. 9A is a cross-sectional view of an electronic device according to one embodiment including a second deformation region within an unfolded state.

[0024] FIG. 9b is a cross-sectional view of an electronic device according to one embodiment including a second deformation region within a folded state.

[0025] FIG. 10A is a perspective view of an electronic device according to one embodiment.

[0026] Figure 10b illustrates an electronic device according to a comparative example.

[0027] FIG. 11 illustrates an electronic device according to one embodiment in a folded state.

[0028] FIG. 12A illustrates a portion of an electronic device according to one embodiment.

[0029] Fig. 12b illustrates a part of an electronic device according to a comparative example.

[0030] FIGS. 13A and 13B partially illustrate a first hinge assembly, a flexible display, and a third housing of an electronic device according to one embodiment.

[0031] FIG. 14A illustrates a portion of an electronic device according to one embodiment.

[0032] Figure 14b illustrates a part of an electronic device according to a comparative example.

[0033] FIG. 15A is a drawing showing the usability of at least one key button or fingerprint recognition unit of an electronic device according to the width of the first housing.

[0034] Figure 15b is a drawing showing the ease of unfolding operation of the electronic device according to the width of the first housing.

[0035] FIG. 16A illustrates a foldable housing of an electronic device according to one embodiment.

[0036] Figure 16b is a drawing showing the radiation performance of the antenna of the electronic device according to the width of the first housing.

[0037] FIGS. 17A and 17B illustrate an electronic device according to one embodiment for improving the usability of at least one key button or fingerprint recognition unit.

[0038] FIGS. 18A and 18B illustrate an electronic device according to one embodiment for improving ease of unfolding operation.

[0039] FIG. 19 illustrates an electronic device according to one embodiment for improving the radiation performance of an antenna of an electronic device.

[0040] FIGS. 20A, 20B, and 20C illustrate an electronic device according to one embodiment for improving the radiation performance of an antenna of an electronic device.

[0041] FIG. 21 illustrates an electronic device according to one embodiment, in an unfolded state.

[0042] FIG. 1 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0043] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio 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 subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0044] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0045] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, in the electronic device (101) itself where artificial intelligence is performed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0046] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or 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 (142), middleware (144), or an application (146).

[0048] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0049] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0050] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0051] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0052] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

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

[0054] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0055] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0056] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0057] The power management module (188) can manage the power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0058] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0059] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, 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 module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0060] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0061] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one 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 method 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). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0062] In one embodiment, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0063] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0064] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0065] Within the present disclosure, relative terms such as "above," "below," "one side," "the other side," "one end," and "the other end" may be used to describe the relative positional relationship between components, rather than to indicate the absolute positions of the components. For example, if the electronic device (101) depicted in the drawing is flipped over, the terms "above" and "below" may be interchanged. For example, if the electronic device (101) depicted in the drawing is flipped over, the terms "one end" and "the other end" may be interchanged.

[0066] Within the present disclosure, rotation may be referred to as a folding or unfolding motion of the foldable housing (201). For example, "one component is rotated relative to another component" may refer to an motion in which one component is folded or unfolded relative to the other component.

[0067] Hereinafter, an example of the aforementioned electronic device (101) will be described. Within the present disclosure, relative terms such as "above," "below," "one side," and / or "the other side" may be used to describe the relative positional relationship between components, rather than to indicate the absolute positions of the components. For example, if the electronic device (101) depicted in the drawing is flipped over, the terms "above" and "below" may be interchanged.

[0068] Within the present disclosure, rotation may be referred to as a folding or unfolding motion of a foldable housing (e.g., the foldable housing (201) of FIG. 2A). For example, "one component is rotated relative to another component" may refer to an motion in which one component is folded or unfolded relative to the other component.

[0069] FIG. 2A illustrates an unfolded state of an electronic device according to one embodiment. FIG. 2B illustrates a folded state of an electronic device according to one embodiment. FIG. 2C illustrates a flexible display and protective frames of an electronic device according to one embodiment.

[0070] Referring to FIG. 2A, an electronic device (101) according to one embodiment may include a foldable housing (201), a first hinge assembly (240), a second hinge assembly (250), and a flexible display (260).

[0071] In one embodiment, the foldable housing (201) may be deformable. For example, the foldable housing (201) may include a first housing (210), a second housing (220), and a third housing (230) that are rotatably connected to each other. In an unfolded state of the electronic device (101), the second housing (220) may be positioned between the first housing (210) and the third housing (230). For example, one side of the first housing (210) may be rotatably connected to one side of the second housing (220). For example, one side of the third housing (230) may be rotatably connected to the other side of the second housing (220) that is opposite the one side of the second housing (220). The foldable housing (201) may be referred to as a multi-foldable housing in terms of including a first housing (210), a second housing (220), and a third housing (230) that are rotatably connected. In the present disclosure, the foldable housing (201) is described as having a structure including a first housing (210), a second housing (220), and a third housing (230), but is not limited thereto. For example, the foldable housing (201) may include a plurality of housings of four or more.

[0072] An electronic device (101) according to one embodiment may include hinge assemblies (240, 250) for deformation of a foldable housing (201). For example, the electronic device (101) may include a first hinge assembly (240) and a second hinge assembly (250). The first hinge assembly (240) may rotatably connect a first housing (210) and a second housing (220). The first hinge assembly (240) may be disposed between the first housing (210) and the second housing (220). The second hinge assembly (250) may rotatably connect the second housing (220) and the third housing (230). The second hinge assembly (250) may be disposed between the second housing (220) and the third housing (230).

[0073] According to one embodiment, the foldable housing (201) may have a structure that can be folded twice by a first hinge assembly (240) and a second hinge assembly (250). The first hinge assembly (240) and the second hinge assembly (250) may include a structure (e.g., a linkage gear) for providing a folding or unfolding operation of the foldable housing (201). According to one embodiment, the electronic device (101) may include a first hinge cover (271) for covering the first hinge assembly (240) and a second hinge cover (272) for covering the second hinge assembly (250). At least a portion of the first hinge assembly (240) may be accommodated within the first hinge cover (271). At least a portion of the second hinge assembly (250) may be accommodated within the second hinge cover (272).

[0074] According to one embodiment, the width of the first hinge assembly (240) may be wider than the width of the second hinge assembly (250). As illustrated in FIG. 2B, in the folded state of the electronic device (101), since the third housing (230) is positioned between the first housing (210) and the second housing (220), the first hinge assembly (240) may have a relatively large width in order to provide a space in which the third housing (230) is positioned. Since the width of the first hinge assembly (240) is wider than the width of the second hinge assembly (250), the width of the second hinge cover (272) may be wider than the width of the first hinge cover (271). Since the width of the first hinge cover (271) and the width of the second hinge cover (272) are different, the areas of the first hinge cover (271) and the second hinge cover (272) exposed to the outside may be different in the first state. Referring to FIG. 2A, the second hinge cover (272) may be substantially covered by the second housing (220) and the third housing (230) in the unfolded state. For example, the second hinge cover (272) having a relatively small width may not be visible in the unfolded state. For example, at least a portion of the first hinge cover (271) having a relatively large width may be exposed between the first housing (210) and the second housing (220) in the unfolded state. For example, the first hinge cover (271) having a relatively large width may be visible in the unfolded state. Within the unfolded state of the electronic device (101), the first hinge cover (271) may be exposed between the first housing (210) and the second housing (220), and the second hinge cover (272) may be substantially covered by the second housing (220) and the third housing (230). For example, within the unfolded state of the electronic device (101), the length of the first hinge cover (271) exposed to the outside may be about 2.58 mm, and the length of the second hinge cover (272) exposed to the outside may be about 0.It may be 10 mm. However, the aforementioned length is only exemplary, and the embodiments are not limited thereto.

[0075] According to one embodiment, a flexible display (260) may be disposed on a foldable housing (201). The flexible display (260) may be configured to display visual information.

[0076] According to one embodiment, the flexible display (260) may include a first display area (261), a second display area (262), and a third display area (263). For example, the first display area (261) may be a portion of the flexible display (260) that is disposed on the first housing (210) in an unfolded state. For example, the second display area (262) may be a portion of the flexible display (260) that is disposed on the second housing (220) in an unfolded state. For example, the third display area (263) may be a portion of the flexible display (260) that is disposed on the third housing (230) in an unfolded state.

[0077] According to one embodiment, the first display area (261), the second display area (262), and the third display area (263) may be distinguished to provide visual information displayed on the flexible display (260) in various ways. The visual information displayed through the flexible display (260) may be provided independently according to the first display area (261), the second display area (262), and the third display area (263). For example, the flexible display (260) may be controlled so that the first display area (261), the second display area (262), and the third display area (263) provide one visual information as a whole. For example, the flexible display (260) may be controlled so that the first display area (261), the second display area (262), and the third display area (263) each provide different visual information. For example, two of the first display area (261), the second display area (262), and the third display area (263) can be controlled to provide one visual information, and the remaining one can be controlled to independently provide another visual information.

[0078] According to one embodiment, when the foldable housing (201) is folded or unfolded, a portion of the flexible display (260) may also be folded or unfolded. The deformable structure of the flexible display (260) depending on the state of the electronic device (101) will be described later.

[0079] Referring to FIGS. 2A and 2C, an electronic device (101) according to one embodiment may include protective frames (310) for protecting edges of a flexible display (260). For example, the protective frames (310) may include a first frame (311) that surrounds at least a portion of an edge of a first display area (261), a second frame (312) that surrounds at least a portion of an edge of a second display area (262), and a third frame (313) that surrounds at least a portion of an edge of a third display area (263). Since a portion of the flexible display (260) may be deformable, the first frame (311) and the third frame (313) may be spaced apart from the second frame (312). For example, the first gap between the first frame (311) and the second frame (312) may be greater than the second gap between the second frame (312) and the third frame (313). For example, the first gap may be about 14.0 mm, and the second gap may be about 8.9 mm, but is not limited thereto.

[0080] An electronic device (101) according to one embodiment may include a cap (320) and / or a cover (e.g., a cover (290) of FIG. 2A) to reduce the inflow of foreign substances (e.g., dust) between the protective frames (310). The cover (290) may reduce the inflow of foreign substances by filling the gap between the protective frames (310). The cap (320) may support the cover (290) so that the cover (290) may be fixed between the protective frames (310).

[0081] According to one embodiment, the electronic device (101) may include one or more cameras (283) disposed within the foldable housing (201). For example, the cameras (283) may be disposed within the foldable housing (201) so as to face the opposite side of the flexible display (260). For example, the cameras (283) may be disposed within the second housing (220). Although not shown, the electronic device (101) may further include a camera disposed below the flexible display (260) and facing the direction in which the flexible display (260) faces.

[0082] According to one embodiment, the electronic device (101) may include a key button (281) and / or a fingerprint recognition unit (282). For example, the key button (281) and / or the fingerprint recognition unit (282) may be positioned on one side of the first housing (210) opposite the first hinge assembly (240) (e.g., the second side (212) of FIG. 11). For example, a portion of the key button (281) may be exposed to the one side (212) of the first housing (210), thereby allowing the user to push the key button (281). The key button (281) and the fingerprint recognition unit (282) may also be formed as a single physical structure.

[0083] Referring to FIG. 2B, within the folded state of the electronic device (101), the first housing (210), the second housing (220), and the third housing (230) may overlap. For example, within the folded state, the third housing (230) may be positioned between the first housing (210) and the second housing (220). Within the folded state, the front side of the first housing (210) may face the back side of the third housing (230), and the front side of the second housing (220) may face the front side of the third housing (230).

[0084] According to one embodiment, the thickness of the first housing (210), the thickness of the second housing (220), and the thickness of the third housing (230) may be different from each other. For example, in the folded state, the thickness of the third housing (230) positioned between the first housing (210) and the second housing (220) may be thinner than the thickness of the first housing (210) and the thickness of the second housing (220). However, the present invention is not limited thereto. For example, the thickness of the second housing (220) may be thinner than the thickness of the first housing (210) and the thickness of the third housing (230). In the folded state of the electronic device (101), the first hinge cover (271) and the second hinge cover (272) may be exposed to the outside.

[0085] An electronic device (101) according to one embodiment may include a cover display (284). The cover display (284) may be referred to as a sub-display. For example, the cover display (284) may be disposed on the first housing (210). For example, the cover display (284) may be opposite the first display area (261) of the flexible display (260). In a folded state of the electronic device (101), the flexible display (260) may be covered by the foldable housing (201) and thus may not be visible from the outside. The cover display (284) may be configured to display visual information in the folded state of the electronic device (101). The cover display (284) may be configured to provide text, images, and / or videos in the folded state of the electronic device (101). As illustrated in FIG. 2b, in the folded state of the electronic device (101), since the second housing (220) is positioned at the outer side, one or more cameras (283) positioned within the second housing (220) may be available to capture a subject.

[0086] Referring to FIG. 2c, the protective frames (310) can protect the flexible display (260) by at least partially covering the edges of the flexible display (260). For example, the protective frames (310) can be placed on top of the flexible display (260).

[0087] According to one embodiment, the protective frames (310) may include a first frame (311), a second frame (312), and a third frame (313). As described above, when the foldable housing (201) is deformed, the second frame (312), which is positioned between the first frame (311) and the third frame (313), may be spaced apart from the first frame (311) and the third frame (313) so as not to be interfered with by the protective frames (310).

[0088] An electronic device (101) according to one embodiment may include a cap (320) to reduce the inflow of foreign substances (e.g., dust) between a first frame (311) and a second frame (312) and / or between a second frame (312) and a third frame (313). The cap (320) may include a first cap (321) and a second cap (322) disposed between the first frame (311) and the second frame (312), and a third cap (323) and a fourth cap (324) disposed between the second frame (312) and the third frame (313).

[0089] The cap (320) may support a cover to fill a gap formed between the protective frames (310). The cap (320) may protrude toward the flexible display (260) to support the cover. For example, the cap (320) may include a protrusion (320a) that protrudes toward the flexible display (260). When the protrusion (320a) comes into contact with the flexible display (260), damage to the flexible display (260) may occur, so the protrusion (320a) may be spaced apart from the flexible display (260). A gap may be formed between the protrusion (320a) and the flexible display (260). For example, the gap may be about 0.30 mm to about 0.50 mm, but is not limited thereto.

[0090] Hereinafter, an operation of folding or unfolding a foldable housing (201) of an electronic device (101) according to one embodiment is described.

[0091] FIG. 3A illustrates a process of transforming an electronic device according to one embodiment from an unfolded state to a folded state. FIG. 3B is a cross-sectional view taken along line A-A' of FIG. 3B of the electronic device according to one embodiment.

[0092] Referring to FIG. 3A, the foldable housing (201) may be configured to provide a first state, a second state, and a third state. The first state may be referred to as an unfolded state of the electronic device (101). The third state may be referred to as a folded state of the electronic device (101). The second state may be referred to as an intermediate state between the first state and the second state.

[0093] State (300a) of FIG. 3A represents a first state. Within the first state, the first housing (210), the second housing (220), and the third housing (230) may be arranged on substantially the same plane. For example, within the first state, a first angle between the first display area (261) and the second display area (262) and a second angle between the second display area (262) and the third display area (263) may be substantially straight angles (e.g., approximately 180 degrees). The first state may be referred to as an open state, a flat state, and / or an outspread state from the perspective that the first housing (210), the second housing (220), and the third housing (230) are fully unfolded. Within the first state, the flexible display (260) may be substantially flat.

[0094] State (300b) of Fig. 3a represents a second state. Within the second state, the first angle may be substantially maintained at a parallel angle, and the second angle may be substantially 0 degrees. For example, within the first state, as the third housing (230) rotates relative to the second housing (220), the electronic device (101) may change from the first state to the second state. When a user applies an external force to the third housing (230) in the first state to fold the third housing (230), the third housing (230) may be rotated counterclockwise relative to the first housing (210) via the second hinge assembly (e.g., the second hinge assembly (250) of Fig. 2a). The second hinge assembly (250) can rotatably connect the second housing (220) and the third housing (230) so that the third housing (230) folds inwardly with respect to the second housing (220). The second state, from the perspective of a portion of the foldable housing (201) being folded, may be referred to as a semi-folded state (or semi-unfolded state), a sub-unfolded state (or sub-folded state), a first folded state, an intermediate state, and / or a concave state.

[0095] State (300c) of FIG. 3A represents a third state. Within the third state, the first angle and the second angle may be substantially 0 degrees. For example, within the second state, as the first housing (210) rotates relative to the second housing (220), the electronic device (101) may change from the second state to the third state. For example, when a user applies an external force to the first housing (210) in the second state to fold the first housing (210), the first housing (210) may rotate clockwise relative to the second housing (220) via the first hinge assembly (e.g., the first hinge assembly (240) of FIG. 2A). The first hinge assembly (240) can rotatably connect the first housing (210) and the second housing (220) so that the first housing (210) can be folded inwardly relative to the second housing (220). The third state may be referred to as a second folded state, a folded state, and / or a closed state from the perspective that the foldable housing (201) is completely folded. For example, the second folded state may be formed by the first housing (210) being folded in the first folded state.

[0096] According to one embodiment, the foldable housing (201) may be referred to as an in-fold structure from the perspective that the first housing (210) and the third housing (230) are folded inward. For example, the first folded state and the second folded state may be states in which the foldable housing (201) is folded inward with respect to the flexible display (260). Within the folded third state of the foldable housing (201), the third housing (230) may be positioned between the first housing (210) and the second housing (220). For example, referring to the state (300c) of FIG. 3A, the first housing (210), the third housing (230), and the second housing (220) may be sequentially positioned with respect to a direction facing downward from above (e.g., a direction in which the sub-display (284) is viewed from above).

[0097] The electronic device (101) can be used in a first state to utilize a large-screen flexible display (260). The electronic device (101) can be switched from the first state to a third state so that it can be easily carried by a user. For example, the foldable housing (201) can be switched from the first state to the second state and then to the third state. For example, in the first state, the third housing (230) can first be folded inwardly relative to the second housing (220) (second state), and then the first housing (210) can be folded inwardly relative to the second housing (220) (third state).

[0098] According to one embodiment, in order to provide the third state, the structure of the first hinge assembly (240) and the structure of the second hinge assembly (250) may be different from each other. If the width of the first hinge assembly (240) is substantially the same as or similar to the size of the second hinge assembly (250), when the first housing (210) and the second housing (220) are folded, a space in which the third housing (230) is to be positioned may not be formed. In the third state, in order to provide a space in which the third housing (230) can be positioned between the first housing (210) and the second housing (220), the width of the first hinge assembly (240) may be larger than the width of the second hinge assembly (250). Due to the difference in width, the width of the first hinge cover (271) may be different from the width of the second hinge cover (272). For example, the width of the first hinge cover (271) (e.g., the fourth width (W4) of FIG. 3A) may be wider than the width of the second hinge cover (272) (e.g., the fifth width (W5) of FIG. 3A). In view of having different widths, the first hinge assembly (240) may be referred to as a wide hinge, and the second hinge assembly (250) may be referred to as a narrow hinge.

[0099] Referring to FIG. 3B, when the electronic device (101) in the third state is viewed from above, the first housing (210), the second housing (220), and the third housing (230) may overlap each other. Within the folded third state of the foldable housing (201), the third housing (230) may be positioned between the first housing (210) and the second housing (220). For example, within the third state, the second frame (312) and the third frame (313) may be in contact with each other. For example, within the third state, a portion of the second display area (262) disposed on the second housing (220) may face a portion of the third display area (263) disposed on the third housing (230). Within the third state, a portion of the first display area (261) disposed on the first housing (210) may face the back surface (233) of the third housing (230) opposite to the third display area (263).

[0100] As described above, the electronic device (101) according to one embodiment may include a foldable housing (201) that folds inwardly. The foldable housing (201) in an unfolded state may be folded in such a manner that the third housing (230) is first folded inwardly relative to the second housing (220), and then the first housing (210) is folded inwardly relative to the second housing (220). In the third state, in order for the third housing (230) to be positioned between the first housing (210) and the second housing (220), a space may be required between the first housing (210) and the second housing (220) in which the third housing (230) can be positioned. Hereinafter, the structure of the electronic device (101) for providing the aforementioned folding method will be described.

[0101] FIG. 4A is a cross-sectional view taken along line B-B' of FIG. 3B of an electronic device according to one embodiment. FIG. 4B schematically illustrates the operation of an electronic device according to a comparative example. FIG. 4C schematically illustrates the operation of an electronic device according to one embodiment.

[0102] Referring to FIG. 4A, the flexible display (260) may include portions that are bent within the folded state of the electronic device (101). Bending of the flexible display (260) may be referred to as a portion of the flexible display (260) being deformed and a remaining portion of the flexible display (260) not being deformed.

[0103] According to one embodiment, as the electronic device (101) changes from an unfolded state to a folded state, the flexible display (260) may be divided into a deformable region (401) that may be deformed and a non-deformable region (402) that may not be deformed. The deformable region (401) and the non-deformable region (402) may be divided based on whether the shape of the flexible display (260) is deformed depending on the state of the foldable housing (201).

[0104] The deformation region (401) may be referred to as a region of the flexible display (260) that is deformable as the foldable housing (201) is folded or unfolded. For example, the flexible display (260) may include a structure (e.g., a lattice structure) that enables the deformation region (401) to be deformed as the foldable housing (201) is folded or unfolded. The deformation region (401) may be at least partially bent by the foldable housing (201) and / or a hinge assembly (e.g., a first hinge assembly (240), a second hinge assembly (250)).

[0105] The deformation region (401) being at least partially bent may refer to a portion of the deformation region (401) being able to form a curved surface having a curvature, and another portion of the deformation region (401) being able to form a flat plane. For example, within a folded state of the electronic device (101), a portion of the deformation region (401) may be able to form a curved surface having a curvature, and another portion of the deformation region (401) may be able to form a flat plane. The deformation region (401) may be a portion of the flexible display (260) that is deformed by the folding operation of the foldable housing (201) by including a boundary between a first display area (e.g., the first display area (261) of FIG. 2A) and a second display area (e.g., the second display area (262) of FIG. 2A) or a boundary between a second display area (262) and a third display area (e.g., the third display area (263) of FIG. 2A).

[0106] The non-deformable region (402) may be referred to as the remaining region of the flexible display (260) that is different from the deformable region (401). The non-deformable region (402) may be attached to the foldable housing (201) and maintain a fixed shape. The non-deformable region (402) may be substantially flat, independent of the state of the electronic device (101). For example, in the unfolded state, the folded state, and / or the intermediate state of the electronic device (101), the non-deformable region (402) may be substantially flat without being bent.

[0107] According to one embodiment, the deformation region (401) may include a first deformation region (410) and a second deformation region (420). In a folded state of the electronic device (101), the first deformation region (410) and the second deformation region (420) may be formed by folding a portion of the flexible display (260). For example, the first deformation region (410) may include a boundary between the first display region (261) and the second display region (262). A portion of the first deformation region (410) may be formed by partially deforming the first display region (261), and a remaining portion of the first deformation region (410) may be formed by partially deforming the second display region (262). For example, the second deformation region (420) may include a boundary between the second display region (262) and the third display region (263). A portion of the second deformation region (420) may be formed by partially deforming the second display region (262), and the remaining portion of the second deformation region (420) may be formed by partially deforming the third display region (263).

[0108] For example, the non-deformable region (402) different from the first deformation region (410) and the second deformation region (420) may be divided into a first region (430), a second region (440), and a third region (450). For example, the first region (430) may be a non-deformable region within the first display region (261) and may be in contact with the first deformation region (410). For example, the second region (440) may be a non-deformable region within the second display region (262) and may be located between the first deformation region (410) and the second deformation region (420). For example, the third region (450) may be a non-deformable region within the third display region (263) and may be in contact with the second deformation region (420). For example, within the folded state of the electronic device (101), a first deformation region (410) may be positioned between a first region (430) and a second region (440), and a second deformation region (420) may be positioned between a second region (440) and a third region (450).

[0109] As described above, the first housing (210) and the third housing (230) can be folded inwardly relative to the second housing (220), and within the folded state of the electronic device (101), the third housing (230) can be positioned between the first housing (210) and the second housing (220). When the electronic device (101) changes from an unfolded state to a folded state, the third housing (230) is folded inward first, so within the folded state of the electronic device (101), the first region (430) can face the back surface (233) of the third housing (230). After the third housing (230) is folded, since the third housing (230) is folded inward, the back surface (233) of the third housing (230) may be referred to as the surface of the third housing (230) opposite the front surface where the third display area (263) is arranged. According to one embodiment, in the folded state of the electronic device (101), the second area (440) may face the third area (450).

[0110] Since the first region (430) faces the back surface (233) of the third housing (230) and the second region (440) faces the third region (450), the spacing between the regions (430, 440, 450) within the folded state of the electronic device (101) may be different. According to one embodiment, within the folded state, the spacing between the first region (430) and the third region (450) may be greater than the spacing between the second region (440) and the third region (450).

[0111] Since the third housing (230) is positioned between the first region (430) and the third region (450), the gap between the first region (430) and the third region (450) can be designed to be a certain gap or more so that the third housing (230) can be positioned between the first housing (210) and the second housing (220). According to one embodiment, the gap between the first region (430) and the second region (440) can be greater than the thickness of the third housing (230).

[0112] For example, if the gap between the first region (430) and the second region (440) is smaller than or equal to the thickness of the third housing (230), when the first housing (210) is folded inward in a state where the third housing (230) is first folded (e.g., state (300b) of FIG. 3a), the first housing (210) may not be completely folded, or damage to the flexible display (260) may occur. By forming the gap larger than the thickness of the third housing (230), the first housing (210) can be completely folded, and the third housing (230) can be positioned between the first housing (210) and the second housing (220) in the folded state of the electronic device (101). For example, when the electronic device (101) includes protective frames (e.g., protective frames (310) of FIG. 2c), the distance between the first region (430) and the second region (440) may be greater than the sum of the thickness of the third housing (230) and the thickness of the protective frame.

[0113] In the folded state of the electronic device (101), in order for the third housing (230) to be positioned between the first housing (210) and the second housing (220), the width of the first deformation region (410) may be greater than the thickness of the third housing (230). For example, if the width of the first deformation region (410) is smaller than the thickness of the third housing (230), the foldable housing (201) may not be completely folded.

[0114] FIGS. 4B and 4C are drawings for comparing the folding operation of the foldable housing (201) according to the width (403) of the first deformation region (410) and the thickness (404) of the third housing (230). The electronic device (400) according to the comparative example illustrated in FIG. 4B schematically represents an electronic device in which the width (403) of the first deformation region (410) is smaller than or equal to the thickness (404) of the third housing (230).

[0115] In the case of the electronic device (400) according to the comparative example, when changing from an intermediate state to a folded state, the first housing (210) may be folded in an inward folding direction (e.g., clockwise) with respect to the second housing (220). When the first housing (210) is folded, since the width (403) of the first deformation area (410) is smaller than or equal to the thickness (404) of the third housing (230), the first housing (210) may not be completely folded. Even if the first deformation area (410) is at least partially bent, the rotation of the first housing (210) in the above direction may be limited because it cannot accommodate the thickness (404) of the third housing (230).

[0116] The electronic device (101) of FIG. 4C schematically illustrates an electronic device (101) according to one embodiment, wherein the width (403) of the first deformation region (410) is greater than the thickness (404) of the third housing (230). In the electronic device (101) according to one embodiment, when changing from an intermediate state to a folded state, the first housing (210) can be folded in an inward folding direction (e.g., clockwise) with respect to the second housing (220). When the first housing (210) is folded, since the width (403) of the first deformation region (410) is greater than the thickness (404) of the third housing (230), the first deformation region (410) can be at least partially bent so that the first housing (210) can be placed on top of the third housing (230). Since the width (403) of the first deformation region (410) is greater than the thickness (404) of the third housing (230), the width (403) of the first deformation region (410) may be sufficient to accommodate the thickness (404) of the third housing (230). By virtue of the first deformation region (410) having a width (403) greater than the thickness (404) of the third housing (230), the gap between the first region (430) and the third region (450) in the folded state of the foldable housing (201) may be greater than the thickness of the third housing (230).

[0117] Below, the detailed structure of the flexible display (260) within the folded state of the electronic device (101) is described.

[0118] FIG. 5A illustrates a flexible display, a first hinge assembly, and a second hinge assembly in a folded state. FIG. 5B schematically illustrates examples of a first deformation region in a folded state.

[0119] Referring to FIG. 5A, within a folded state of a foldable housing (e.g., the foldable housing (201) of FIG. 2A), the flexible display (260) may be divided into a deformation region (401) and a non-deformable region (402). As described above, the deformation region (401) and the non-deformable region (402) may be divided based on whether or not the shape is deformed. For example, the deformation region (401) may be a region of the flexible display (260) that is at least partially bent as the electronic device (101) changes from an unfolded state to a folded state. For example, the non-deformable region (402) may be a region of the flexible display (260) that is substantially flat, independent of the state of the foldable housing (201). For example, the deformation region (401) may include a first deformation region (410) and a second deformation region (420). For example, the non-deformable region (402) may include a first region (430), a second region (440), and a third region (450).

[0120] For example, the first deformation region (410) may be formed by the first hinge assembly (240). According to one embodiment, the first hinge assembly (240) may include first hinge plates (e.g., the first plate (241) and the second plate (242)) and a first hinge bracket (243). Each of the first plate (241) and the second plate (242) may be rotatably connected to the first hinge bracket (243). The first plate (241) may be coupled to the first housing (210). The second plate (242) may be coupled to the second housing (220). For example, when an external force that causes the first housing (210) to rotate is applied, the first plate (241) and the second plate (242) may be rotated by the external force. Although not shown, the first hinge assembly (240) may include a linkage gear that links the rotational motions of the first plate (241) and the second plate (242). For example, as the first plate (241) rotates, a portion of the first display area (e.g., the first display area (261) of FIG. 2A) may be bent, and as the second plate (242) rotates, a portion of the second display area (e.g., the second display area (262) of FIG. 2A) may be bent. A first deformation area (410) may be formed by the portion of the first display area (261) and the portion of the second display area (262). The first deformation area (410) may be bent by the first hinge plates (e.g., the first plate (241) and the second plate (242)). The first deformation region (410) may include the boundary of the first display region (261) and the second display region (262).

[0121] For example, the second deformation region (420) may be formed by the second hinge assembly (250). According to one embodiment, the second hinge assembly (250) may include second hinge plates (e.g., a third plate (251) and a fourth plate (252)) and a second hinge bracket (253). Each of the third plate (251) and the fourth plate (252) may be rotatably connected to the second hinge bracket (253). The third plate (251) may be coupled to the second housing (220). The fourth plate (252) may be coupled to the third housing (230). For example, when an external force that causes rotation of the third housing (230) is applied, the third plate (251) and the fourth plate (252) may be rotated by the external force. For example, as the third plate (251) rotates, another part of the second display area (262) may be bent, and as the fourth plate (252) rotates, a part of the third display area (263) may be bent. A second deformation area (420) may be formed by the other part of the second display area (262) and a part of the third display area (263). The second deformation area (420) may be bent by the second plates (e.g., the third plate (251) and the fourth plate (252)). The second deformation area (420) may include a boundary between the second display area (262) and the third display area (263).

[0122] Since the first deformation region (410) is deformed (e.g., bent) by the first hinge assembly (240), the shape of the first deformation region (410) can be determined based on the arrangement structure of the first hinge assembly (240) in the folded state. According to one embodiment, the first deformation region (410) can include a first bent portion (412), a second bent portion (413), and a first flat portion (411).

[0123] For example, the first curved portion (412) may be formed by partially bending the first display area (261). For example, the first curved portion (412) may be a portion that is bent to have a curvature (e.g., a first maximum curvature) within a portion of the first display area (261) that is bent by the first plate (241).

[0124] For example, the second curved portion (413) may be formed by partially bending the second display area (262). For example, the second curved portion (413) may be a portion that is bent to have a curvature (e.g., a second maximum curvature) within a portion of the second display area (262) that is bent by the second plate (242). In one embodiment, the first maximum curvature of the first curved portion (412) may correspond to the second maximum curvature of the second curved portion (413). Within the present disclosure, the “maximum curvature” may be referred to as the curvature at a point having the greatest curvature among the curvatures within the curved portion (e.g., the first curved portion (412), the second curved portion (413), and / or the third curved portion (423)). For example, when the curved portion is bent to have a constant curvature, the curvature within the curved portion may be substantially equal to the maximum curvature. For example, if a curved portion is bent to have a non-constant curvature, a point with maximum curvature may be formed within the curved portion.

[0125] For example, the first curved portion (412) and the second curved portion (413) can be formed by the rotational motion of the first plate (241) and the second plate (242). Since the rotational motion of the first plate (241) and the rotational motion of the second plate (242) are linked by a linkage gear, the first curved portion (412) and the second curved portion (413) can be formed in substantially the same shape.

[0126] According to one embodiment, the first maximum curvature of the first curved portion (412) and the second maximum curvature of the second curved portion (413) in which the flexible display (260) is deformed may be set in consideration of the marketability of the flexible display (260). For example, when the first maximum curvature and the second maximum curvature increase, the overall width of the flexible display (260) may decrease. When the overall width of the flexible display (260) decreases, the size of the display area for providing visual information may decrease. In order to provide a large screen using a compact foldable housing (201), the first curved portion (412) and the second curved portion (413) may have a maximum curvature that is less than or equal to about 1.5R. For example, the first maximum curvature and / or the second maximum curvature may be less than or equal to about 1.5R. For example, the first maximum curvature and the second maximum curvature may be the same as or similar to the limit curvature of the flexible display (260).

[0127] For example, the first flat portion (411) may be positioned between the first curved portion (412) and the second curved portion (413). According to one embodiment, the first flat portion (411) may be substantially flat. For example, the first hinge assembly (240) may include a support plate (510) (e.g., the support plate (510) of FIG. 5B) for supporting the first flat portion (411). The support plate (510) is a flat plate and may support the first flat portion (411) formed in a folded state. The first flat portion (411) may have a flat shape and may be protected from external force by being supported by the support plate (510).

[0128] In one embodiment, for a first maximum curvature and a second maximum curvature of less than or equal to about 1.5R, the first flat portion (411) may be spaced apart from the first region (430) and the second region (440) by an inner diameter corresponding to the first maximum curvature and the second maximum curvature. For example, on the boundary between the first flat portion (411) and the second curved portion (413), a virtual line (L) extending in a direction perpendicular to the first flat portion (411) may be positioned above a surface (441) (e.g., a front surface) of the second region (440). As described above, in order for the first maximum curvature and / or the second maximum curvature to be less than or equal to about 1.5R, the distance between the virtual line (L) and the surface (441) of the second region (440) may be greater than or equal to about 1.5 mm, which is an inner diameter corresponding to the first maximum curvature and / or the second maximum curvature. If the distance is less than about 1.5 mm, the size of the display area of ​​the flexible display (260) may be reduced because the first maximum curvature and / or the second maximum curvature becomes greater than about 1.5R. According to one embodiment, since the virtual line (L) is positioned above the surface (441) of the second region (440) and the distance is formed to be greater than or equal to about 1.5 mm, the first maximum curvature and / or the second maximum curvature may be less than or equal to about 1.5R.

[0129] According to one embodiment, the first flat portion (411) is formed between the first curved portion (412) and the second curved portion (413), and the length of the first flat portion (411) may be less than or equal to the thickness of the third housing (230) positioned between the first region (430) and the third region (450). If the length of the first flat portion (411) is greater than the thickness of the third housing (230) (e.g., the thickness (404) of FIG. 4C), the space for the third housing (230) may be too wide, and thus the overall thickness of the electronic device (101) in the folded state may be too thick. Since a portion of the space for the third housing (230) may be secured by the first curved portion (412), the length of the first flat portion (411) may be less than or equal to the thickness of the third housing (230) in order to reduce the overall thickness of the electronic device (101) in the folded state.

[0130] Referring to FIG. 5B, as the first flat portion (411) is formed between the first curved portion (412) and the second curved portion (413), the size of the space for the third housing (230) between the first housing (210) and the second housing (220) in the folded state can be increased. 500a of FIG. 5B schematically illustrates the shape of the flexible display (260) in the folded state of the electronic device (101) when the first flat portion (411) is not formed. 500b of FIG. 5B schematically illustrates the shape of the flexible display (260) in the folded state of the electronic device (101) when the first flat portion (411) is formed.

[0131] Referring to 500a of FIG. 5b, when the first flat portion (411) is not formed and the first deformation region (410) is bent as a whole, the first deformation region (410) may have a relatively gentle curvature because it protrudes toward the first hinge assembly (240). Since the curvature of the first deformation region (410) is formed relatively gently, the position (P1) where the space between the first region (430) and the second region (440) begins to narrow may be relatively far from the first hinge cover (271). In the folded state, the third housing (230) positioned between the first housing (210) and the second housing (220) may be spaced apart from the position (P1) so as not to interfere with the flexible display (260). As the above location (P1) moves away from the first hinge cover (271), the size of the third housing (230) may be reduced. For example, since the first deformation region (410) protrudes toward the first hinge assembly (240), a space may be required to accommodate the protruding first deformation region (410). For example, a receiving groove may be required in a portion of the first hinge assembly (240) to accommodate the first deformation region (410) protruding toward the first hinge assembly (240).

[0132] Referring to 500b of FIG. 5b, when the first flat portion (411) is arranged, the first deformation region (410) may have a relatively steep curvature within the first curved portion (412) and the second curved portion (413). Since the curvature is formed relatively steeply within the first curved portion (412) and the second curved portion (413), the position (P2) where the space between the first region (430) and the second region (440) begins to narrow may be relatively closer to the first hinge cover (271). In the folded state, the third housing (230) positioned between the first housing (210) and the second housing (220) is spaced from the position (P2) so as not to interfere with the flexible display (260), so that the size of the third housing (230) can increase as the position (P2) approaches the first hinge cover (271).

[0133] According to one embodiment, since the first flat portion (411) is formed by the support plate (510), the first deformation region (410) can be supported without protruding toward the first hinge assembly (240), so that the first hinge assembly (240) can have a simple structure.

[0134] Referring again to FIG. 5A, the second deformation region (420) is deformed by the second hinge assembly (250), and therefore, the shape of the second deformation region (420) can be determined based on the structure of the second hinge assembly (250) within the folded state. According to one embodiment, the second deformation region (420) can include a second flat portion (421), a third flat portion (422), and a third curved portion (423).

[0135] For example, the second flat portion (421) can be tilted with respect to the non-deformable portion (402). For example, the second flat portion (421) can be tilted at a first angle with respect to the second area (440) within the second display area (262). For example, the third flat portion (422) can be tilted at a second angle with respect to the third area (450) within the third display area (263). In one embodiment, the first angle can correspond to the second angle. For example, the second flat portion (421) can be supported by the third plate (251), and the third flat portion (422) can be supported by the fourth plate (252). Within the folded state, the second plate (242) and the third plate (251) are configured to be non-parallel to each other and to be inclined with respect to each other, so that the second flat portion (421) can be inclined with respect to the second region (440), and the third flat portion (422) can be inclined with respect to the third region (450). The second flat portion (421) can be formed by the rotational motion of the third plate (251), and the third flat portion (422) can be formed by the rotational motion of the fourth plate (252). Since the rotational motion of the third plate (251) and the rotational motion of the fourth plate (252) are linked by a linkage gear, the first inclination and the second inclination can be substantially the same.

[0136] Hereinafter, with reference to FIG. 6, a detailed structure of the first deformation region (410) is described.

[0137] FIG. 6 illustrates a flexible display and a first hinge assembly of an electronic device according to one embodiment.

[0138] Referring to FIG. 6, the first hinge assembly (240) may include first hinge plates (e.g., a first plate (241) and a second plate (242)) rotatably coupled to a first hinge bracket (243). In an unfolded state (600a) of the electronic device (101), the first plate (241) and the second plate (242) may support a portion of a first display area (e.g., a first display area (261) of FIG. 2a) and a portion of a second display area (e.g., a second display area (262) of FIG. 2a). Within the above-described unfolded state (600a), a first direction (601) toward which one side (241a) of a first plate (241) supporting a portion of a first display area (261) faces may correspond to a second direction (602) toward which one side (242a) of a second plate (242) supporting a portion of a second display area (262) faces. For example, the first direction (601) and the second direction (602) may face the +z direction.

[0139] When the electronic device (101) changes from an unfolded state (600a) to a folded state (600b), the first plate (241) can be rotated about a first rotation axis (603), and the second plate (242) can be rotated about a second rotation axis (604). For example, the first rotation axis (603) and the second rotation axis (604) can be parallel to the y-axis. For example, the first rotation axis (603) and the second rotation axis (604) can be spaced apart from each other with respect to the x-axis direction. Since the first plate (241) and the second plate (242) rotate in conjunction with each other, the rotation angle of the first plate (241) can be substantially the same as the rotation angle of the second plate (242). Within the folded state (600b) of the electronic device (101), as the first plate (241) and the second plate (242) are each rotated by about 90 degrees, the first direction (601) may be opposite to the second direction (602). According to one embodiment, within the folded state (600b), the first plate (241) and the second plate (242) may be substantially parallel to each other.

[0140] For example, within the unfolded state (600a), a portion of the first display area (261) supported by the first plate (241) may be at least partially bent based on rotation of the first plate (241) about the first rotation axis (603). As the first plate (241) rotates about 90 degrees, the first area (430) attached to the first housing (210) may be rotated about 90 degrees. For example, within the unfolded state (600a), a portion of the second display area (262) supported by the second plate (242) may be at least partially bent based on rotation of the second plate (242) about the second rotation axis (604). As the second plate (242) rotates about 90 degrees, the second area (440) attached to the second housing (220) may be rotated about 90 degrees. The first region (430) and the second region (440) may be substantially parallel to each other within the folded state (600b).

[0141] According to one embodiment, when the electronic device (101) changes from an unfolded state (600a) to a folded state (600b), or from a folded state (600b) to an unfolded state (600a), a first angular range (A1) through which the first hinge plates (e.g., the first plate (241) and the second plate (242)) rotate with respect to the first hinge bracket (243) may be approximately 180 degrees. The first angular range (A1) may be referred to as the sum of the rotation angle of the first plate (241) and the rotation angle of the second plate (242).

[0142] When the electronic device (101) changes from a folded state (600b) to an unfolded state (600a), the first deformation region (410) between the first region (430) and the second region (440) may be partially bent. For example, since the first region (430) and the second region (440) are parallel, the first deformation region (410) may be partially bent between the first region (430) and the second region (440). The first flat portion (411) within the first deformation region (410) may be an area that is included within the first deformation region (410) but is not substantially deformed, because it maintains a substantially flat shape by being supported by a support plate (e.g., the support plate (510) of FIG. 5b). The first flat portion (411) can be perpendicular to the first region (430) and the second region (440) within the folded state (600b) by maintaining a substantially flat shape.

[0143] The first curved portion (412) between the first region (430) and the first flat portion (411), which are perpendicular to each other, can be bent at a first maximum curvature from the first region (430) to the first flat portion (411).

[0144] The second curved portion (413) between the second region (440) and the first flat portion (411), which are perpendicular to each other, can be bent from the second region (440) to the first flat portion (411) to have a second maximum curvature. The first maximum curvature and the second maximum curvature can be the same as or similar to the limit curvature of the flexible display (260).

[0145] Hereinafter, with reference to FIGS. 7a and 7b, a detailed structure of the second deformation region (420) is described.

[0146] FIG. 7A illustrates a flexible display and a second hinge assembly of an electronic device according to one embodiment. FIG. 7B is a drawing for comparing the folding structure of the second region.

[0147] Referring to FIG. 7a, the second hinge assembly (250) may include second hinge plates (e.g., a third plate (251) and a fourth plate (252)) rotatably coupled to a second hinge bracket (253). In an unfolded state (700a) of the electronic device (101), the third plate (251) and the fourth plate (252) may support another portion of the second display area (262) and a portion of the third display area (263). In the unfolded state (700a), a third direction (710) toward which one surface (251a) of the third plate (251) supporting another portion of the second display area (262) faces may correspond to a fourth direction (720) toward which one surface (252a) of the fourth plate (252) supporting a portion of the third display area (263) faces. For example, the third direction (710) and the fourth direction (720) may be directed toward the +z direction.

[0148] When the electronic device (101) changes from an unfolded state (700a) to a folded state (700b), the third plate (251) can be rotated about a third rotation axis (730), and the fourth plate (252) can be rotated about a fourth rotation axis (740). For example, the third rotation axis (730) and the fourth rotation axis (740) can be parallel to the y-axis. For example, the third rotation axis (730) and the second rotation axis (604) can be spaced apart from each other with respect to the x-axis direction. Since the third plate (251) and the fourth plate (252) rotate in conjunction with each other, the rotation angle of the third plate (251) can be substantially the same as the rotation angle of the fourth plate (252).

[0149] According to one embodiment, within the folded state (700b) of the electronic device (101), the third plate (251) and the fourth plate (252) may be arranged to be inclined with respect to each other. For example, within the folded state (700b), the third direction (710) may be inclined with respect to the fourth direction (720). For example, when the electronic device (101) changes from the unfolded state (700a) to the folded state (700b), the rotation angle of the second housing (e.g., the second housing (220) of FIG. 2a) and the rotation angle of the third housing (e.g., the third housing (230) of FIG. 2a) may be different from the rotation angle of the third plate (251) and the rotation angle of the fourth plate (252). For example, the rotation angle of the second housing (220) and the rotation angle of the third housing (230) may be approximately 90 degrees, and the rotation angle of the third plate (251) and the rotation angle of the fourth plate (252) may be greater than 90 degrees. Due to the difference in the rotation angles, the second deformation area (420) may be bent into a water drop shape (or dumbbell shape) within the folded state (700b). The structure that causes the shape of the second display area (262) is described below with reference to FIGS. 9A and 9B.

[0150] For example, another part of the second display area (262) supported by the third plate (251) within the unfolded state (700a) may be tilted with respect to the second area (440) based on rotation of the third plate (251) about the third rotation axis (730). As the third plate (251) is rotated at an angle greater than about 90 degrees, a second flat portion (421) tilted with respect to the second area (440) attached to the second housing (220) may be formed. For example, the second flat portion (421) may be tilted with respect to the second area (440) at a first angle. For example, within the unfolded state (700a), a portion of the third display area (263) supported by the fourth plate (252) may be tilted with respect to the third area (450) based on the rotation of the fourth plate (252) about the fourth rotation axis (740). As the fourth plate (252) is rotated at an angle greater than about 90 degrees, a third flat portion (422) tilted with respect to the third area (450) attached to the third housing (230) may be formed. For example, the third flat portion (422) may be tilted at a second angle with respect to the third area (450). Within the folded state (700b), at least a portion of the second flat portion (421) may be supported by the third plate (251), and at least a portion of the third flat portion (422) may be supported by the fourth plate (252).

[0151] According to one embodiment, when the electronic device (101) changes from an unfolded state (700a) to a folded state (700b), or from a folded state (700b) to an unfolded state (700a), a second angular range (A2) through which the second hinge plates (e.g., the third plate (251) and the fourth plate (252)) rotate with respect to the second hinge bracket (253) may be greater than 180 degrees. The second angular range (A12) may be referred to as the sum of the rotation angle of the third plate (251) and the rotation angle of the fourth plate (252).

[0152] According to one embodiment, when the electronic device (101) changes from an unfolded state (700a) to a folded state (700b), or from a folded state (700b) to an unfolded state (700a), a first angular range (e.g., a first angular range (A1) of FIG. 6) through which the first hinge plates (e.g., the first plate (241) and the second plate (242) of FIG. 6) rotate with respect to the first hinge bracket (e.g., the first hinge bracket (243) of FIG. 6)) may be smaller than a second angular range (A2) through which the second hinge plates (e.g., the third plate (251) and the fourth plate (252)) rotate with respect to the second hinge bracket (253). As described above, the first angular range (A1) may be about 180 degrees. The second angular range (A2) may be greater than 180 degrees. In the folded state, the first angular range (A1) of the first hinge plates may be relatively small to form a space for the third housing (e.g., the third housing (230) of FIG. 4A) positioned between the first housing (e.g., the first housing (210) of FIG. 4A) and the second housing (e.g., the second housing (220) of FIG. 4A). In the folded state, the second angular range (A2) of the second hinge plates may be relatively large to form a shape (e.g., a teardrop shape or a dumbbell shape) of the flexible display (260) to reduce stress. For example, within the folded state (e.g., 600b of FIG. 6), a third angle between a first direction (e.g., a first direction (601) of FIG. 6a) toward which one side (e.g., a side (241a) of FIG. 6) of the first plate (241) faces and a second direction (e.g., a second direction (602) of FIG. 6a) toward which one side (e.g., a side (242a) of FIG. 6) of the second plate (242) faces may be different from a fourth angle between a third direction (710) toward which one side (251a) of the third plate (251) faces and a fourth direction (720) toward which one side (252a) of the fourth plate (252) faces, within the folded state (e.g., 700b of FIG. 7a).For example, the third angle may be approximately 180 degrees, and the fourth angle may be greater than 180 degrees.

[0153] In the folded state (700b) of the electronic device (101), a portion between the second flat portion (421) and the third flat portion (422) can be bent. As the third plate (251) and the fourth plate (252) rotate, a gap between the third plate (251) and the fourth plate (252) increases, and a portion not supported by the third plate (251) and the fourth plate (252) bends, thereby forming a third bent portion (423).

[0154] Referring to FIG. 7b, when the second deformation region (420) is at least partially bent, the curvature of the third bent portion (423) relative to the flat second region (440) and third region (450) can be relatively reduced by the second flat portion (421) and the third flat portion (422).

[0155] The electronic device (701) according to the comparative example illustrated in FIG. 7b represents an electronic device having a structure in which the third plate (251) and the fourth plate (252) are arranged parallel to each other in a folded state. The electronic device (101) according to one embodiment illustrated in FIG. 7b represents an electronic device having a structure in which the third plate (251) and the fourth plate (252) are arranged to be inclined with respect to each other in a folded state.

[0156] Referring to FIG. 7B, in the electronic device (701) according to the comparative example, the third plate (251) and the fourth plate (252) are arranged parallel to each other, so that the curvature of the third curved portion (423) can be formed between the second region (440) and the third region (450). Since the radius of curvature corresponding to the curvature can be determined based on the distance (750) between the second region (440) and the third region (450), the radius of curvature can be relatively small. Since the radius of curvature is relatively small, the curvature can be relatively large. Since the curvature of the third curved portion (423) is relatively large in the folded state of the electronic device (101), the stress applied to the flexible display (260) can be relatively large.

[0157] In one embodiment, the electronic device (101) is arranged such that the third plate (251) and the fourth plate (252) are inclined toward each other, so that the curvature of the third curved portion (423) can be formed between the second flat portion (421) and the third flat portion (422). At a point where the flexible display (260) begins to bend between the third flat portion (422) and the fourth flat portion, a radius of curvature corresponding to the curvature can be determined based on a distance (760) between the third flat portion (422) and the fourth flat portion. Since the distance (760) between the second flat portion (421) and the third flat portion (422) is relatively large, the radius of curvature can be relatively large. Since the radius of curvature is relatively large, the curvature can be relatively small. In the folded state of the electronic device (101), since the curvature of the third curved portion (423) is relatively small, the stress applied to the flexible display (260) may be relatively small. According to one embodiment, the durability of the flexible display (260) may be improved. For example, wrinkles that may be caused by folding the flexible display (260) may be reduced.

[0158] As described above, the first deformation region (410) and the second deformation region (420) may have different structures so that a structure can be provided in which the third housing (230) is positioned between the first housing (210) and the second housing (220) in the folded state.

[0159] Fig. 8a is an enlarged view of the first deformation region and the second deformation region. Fig. 8b illustrates an electronic device according to one embodiment and an electronic device according to a comparative example.

[0160] Referring to FIG. 8A, within the first deformation region (410), the first bending portion (412) and the second bending portion (413) can be bent. The first bending portion (412) can be bent to have a first maximum curvature, and the second bending portion (413) can be bent to have a second maximum curvature. Since the operation of the first plate (241) and the operation of the second plate (242) are linked by the linkage gear, the first maximum curvature can be substantially the same as the second maximum curvature. Within the second deformation region (420), the third bending portion (423) can be bent. The third bending portion (423) can be bent to have a third maximum curvature.

[0161] In one embodiment, the first maximum curvature and / or the second maximum curvature may be different from the third maximum curvature. For example, the first maximum curvature and / or the second maximum curvature may be greater than the third maximum curvature. For example, the maximum curvature within the first curved portion (412) and / or the second curved portion (413) may be greater than the maximum curvature within the third curved portion (423). For example, within the first curved portion (412) and / or the second curved portion (413), the first radius of curvature (R1) at the point where the maximum curvature is formed may be smaller than the second radius of curvature (R2) at the point where the maximum curvature is formed within the third curved portion (423).

[0162] According to one embodiment, the first deformation region (410) may have a structure that can maximize the size of the display area of ​​the flexible display (260) without interfering with the flexible display (260) when the third housing (230) is positioned between the first housing (210) and the second housing (220) in the folded state. Since the first flat portion (411) is positioned between the first curved portion (412) and the second curved portion (413) having relatively large curvatures, a distance between the first region (430) and the second region (440) can be secured, and thus, a space in which the second housing (220) is positioned can be formed in the folded state. Since the first flat portion (411) is positioned between the first curved portion (412) and the second curved portion (413), the size of the flexible display (260) can be expanded. For example, in the case of a structure in which the first flat portion (411) is not formed, the third housing (230) may interfere with the flexible display (260), and / or the size (e.g., width) of the flexible display (260) may be reduced.

[0163] According to one embodiment, the second deformation region (420) can have a structure that can provide a compact foldable housing (201) in a folded state and maximize the size of the display area of ​​the flexible display (260). As the third curved portion (423) is positioned between the second flat portion (421) and the third flat portion (422), the size of the flexible display (260) can be expanded. As the third curved portion (423) is bent between the second flat portion (421) and the third flat portion (422), the curvature of the third curved portion (423) can be relatively reduced. For example, in the case of a structure in which the second flat portion (421) and the third flat portion (422) are not formed, the size of the flexible display (260) may be reduced, and / or the curvature of the second curved portion (413) may be relatively increased, thereby increasing the stress applied to the flexible display (260).

[0164] According to one embodiment, the first width (810) in the direction perpendicular to the non-deformable region (402) of the first deformable region (410) may be narrower than the second width (820) in the direction of the second deformable region (420). However, the present invention is not limited thereto.

[0165] According to one embodiment, within the folded state, the gap (d1) between the first region (430) and the second region (440) may be different from the gap (d2) between the second region (440) and the third region (450). For example, the gap (d1) may be greater than the gap (d2).

[0166] The electronic device (801) according to the comparative example illustrated in FIG. 8b schematically represents an electronic device having a structure in which a gap (d1) between a first region (430) and a second region (440) is substantially the same as or similar to a gap (d2) between the second region (440) and a third region (450). When the gap (d1) is substantially the same as or similar to the gap (d2), the folding structure of the foldable housing (201) can be changed. For example, when the gap (d1) and the gap (d2) are substantially the same, the first housing (210) and the third housing (230) can be placed over the second housing (220) in a folded state. For example, when the first housing (210) and the third housing (230) are folded inward with respect to the second housing (220), the first housing (210) and the second housing (220) may be arranged on substantially the same plane. In the case of the electronic device (810) according to the comparative example, the first width (810) and the second width (820) may be substantially the same or similar.

[0167] The size of the electronic device (801) according to the comparative example may be relatively large in the folded state. For example, when the electronic device (801) according to the comparative example changes from an unfolded state to a folded state, the size of the second housing (220) may be larger than or equal to the size of the first housing (210) and the size of the third housing (230) so that the first housing (210) and the third housing (230) can be placed on the second housing (220). In the case of the electronic device (801) according to the comparative example, the size in the folded state may be approximately half of the size in the unfolded state.

[0168] In the electronic device (101) according to one embodiment, the first width (810) and the second width (820) may be different. For example, the first width (810) may be shorter than the second width (820). Due to the above structure, the size of the electronic device (101) according to one embodiment may be relatively smaller than the size of the electronic device (801) according to the comparative example in the folded state. When the electronic device (101) according to one embodiment changes from an unfolded state to a folded state, the third housing (230) is positioned between the first housing (210) and the second housing (220), so that the first housing (210), the second housing (220), and the third housing (230) may at least partially overlap. In the electronic device (101) according to one embodiment, the size in the folded state may be approximately 1 / 3 of the size in the unfolded state.

[0169] According to one embodiment, a structure in which the first width (810) is different from the second width (820) can enable a compact foldable housing (201) in a folded state. For example, when the electronic device (101) changes from an unfolded state to a folded state, the size of the electronic device (101) can be reduced by about 1 / 3, so that the electronic device (101) can have improved portability. According to one embodiment, the electronic device (101) can provide a compact structure and a large-screen flexible display (260) according to the user's intention, so that it can provide an improved user experience.

[0170] FIG. 9A is a cross-sectional view of an electronic device according to one embodiment, including a second deformation region, in an unfolded state. FIG. 9B is a cross-sectional view of an electronic device according to one embodiment, including a second deformation region, in a folded state.

[0171] Referring to FIGS. 9A and 9B, when the state of the electronic device (101) according to one embodiment changes, the rotation angle of the third plate (251) and the rotation angle of the fourth plate (252) may be different from the rotation angle of the second housing (220) and the rotation angle of the third housing (230).

[0172] Referring to FIG. 9A, in the unfolded state, the third plate (251) and the fourth plate (252) may be disposed on substantially the same plane. In the unfolded state, the second housing (220) and the third housing (230) may be disposed on substantially the same plane. For example, in the unfolded state, since one side (251a) of the third plate (251) facing the flexible display (260) and one side (252a) of the fourth plate (252) face substantially the same direction, the angle between the one side (251a) and the one side (252a) may be substantially about 180 degrees. For example, in a folded state, one side (220a) of the second housing (220) facing the flexible display (260) and the third side (230a) of the third housing (230) face substantially in the same direction, so that the angle between the one side (220a) and the third side (230a) can be substantially about 180 degrees.

[0173] Referring to FIG. 9B, when the electronic device (101) changes from an unfolded state to a folded state, the rotation angle of the second housing (220) and / or the rotation angle of the third housing (230) may be different from the rotation angle of the third plate (251) and / or the rotation angle of the fourth plate (252). Depending on the difference in the rotation angle, the second deformation region (420) may be bent into a teardrop shape (or dumbbell shape) within the folded state.

[0174] For example, within the folded state, the third plate (251) may be inclined rather than parallel to the fourth plate (252). For example, within the folded state, the direction in which one side (251a) of the third plate (251) faces and the direction in which one side (252a) of the fourth plate (252) faces may not face in opposite directions but may have an incline with respect to each other. For example, the angle between an imaginary straight line parallel to one side (251a) of the third plate (251) and an imaginary straight line parallel to one side (252a) of the fourth plate (252) (e.g., angle (A) in FIG. 9B) may be an acute angle less than 90 degrees.

[0175] For example, when the electronic device (101) changes from an unfolded state to a folded state, the rotation angle of the second housing (220) and the rotation angle of the third housing (230) may be within a first angle range. For example, the second housing (220) and / or the third housing (230) may rotate from an unfolded state in which the second housing (220) and the third housing (230) are substantially parallel to each other on the same plane, to a folded state in which the second housing (220) and the third housing (230) are parallel to each other. Within the unfolded state, the angle between one side (220a) of the first housing (210) and the third side (230a) of the second housing (220) may be approximately 180 degrees. In the folded state, one side (220a) of the first housing (210) and the third side (230a) of the second housing (220) are parallel to each other, so that the angle between the one side (220a) and the one side (230a) can be substantially about 0 degrees.

[0176] For example, when the electronic device (101) changes from an unfolded state to a folded state due to an external force (e.g., a force applied by a user), the second housing (220) and the third housing (230) may rotate. For example, the second housing (220) and the third housing (230) may each rotate about 90 degrees due to the external force. For example, when the electronic device (101) changes from an unfolded state to a folded state, the sum of the rotation angles of the second housing (220) and the rotation angles of the third housing (230) may be about 180 degrees. For example, the first angle range may be about 0 degrees to about 180 degrees.

[0177] For example, when the electronic device (101) changes from an unfolded state to a folded state, the rotation angle of the third plate (251) and the rotation angle of the fourth plate (252) may be within a second angle range that is greater than the first angle range. For example, the third plate (251) and the fourth plate (252) may rotate from an unfolded state in which the third plate (251) and the fourth plate (252) are substantially parallel and arranged on the same plane to a folded state in which the third plate (251) and the fourth plate (252) are inclined with respect to each other. Within the unfolded state, the angle between one side (251a) of the third plate (251) and one side (252a) of the fourth plate (252) may be approximately 180 degrees. Within the folded state, one side (251a) of the third plate (251) and one side (252a) of the fourth plate (252) can form an acute angle with respect to each other (e.g., angle (A) in FIG. 9b).

[0178] For example, when the electronic device (101) changes from an unfolded state to a folded state, each of the third plate (251) and the fourth plate (252) may have an inclination with respect to each other by rotating by an angle greater than 90 degrees (e.g., angle (C) in FIG. 9B). For example, as illustrated in FIG. 9B, when the electronic device (101) changes from an unfolded state to a folded state, each of the third plate (251) and the fourth plate (252) may rotate by x degrees greater than 90 degrees (e.g., 100 degrees). The angle between an imaginary straight line parallel to one side (251a) of the third plate (251) and an imaginary straight line parallel to one side (252a) of the fourth plate (252) (e.g., angle (A) in FIG. 9B) may be 2x-180 degrees (e.g., 20 degrees). For example, when the electronic device (101) changes from an unfolded state to a folded state, the rotation angle of the fourth plate (252) and the sum of the rotation angles of the fourth plate (252) may be greater than 180 degrees. For example, the second angle range may be from about 0 degrees to about 2x degrees (e.g., 200 degrees). However, the present invention is not limited thereto.

[0179] For example, by rotating the third plate (251) and / or the fourth plate (252), the electronic device (101) can be changed from an unfolded state to a folded state. Since the rotation angle ranges of the third plate (251) and the fourth plate (252) and the rotation angle ranges of the second housing (220) and the third housing (230) are different, the electronic device (101) according to one embodiment can provide a structure in which the curvature change of the second deformation region (420) is gentle in the folded state. For example, when the third plate (251) and the fourth plate (252) face each other in the folded state, the curvature of the flexible display (260) supported by the third plate (251) and the fourth plate (252) can change abruptly between the third plate (251) and the fourth plate (252). For example, in the folded state, since the third plate (251) and the fourth plate (252) are inclined with respect to each other, the change in curvature of the flexible display (260) can be made gentle. Since the curvature of the flexible display (260) changes gently, damage to the flexible display (260) can be reduced. For example, in the folded state, the formation of wrinkles in the area where the flexible display (260) is folded (e.g., the second deformation area (420) of FIG. 5A) can be reduced.

[0180] Fig. 10a is a perspective view of an electronic device according to one embodiment. Fig. 10b illustrates an electronic device according to a comparative example.

[0181] Referring to FIG. 10A, the electronic device (101) may include a key button (281) and / or a fingerprint recognition unit (282). The key button (281) may be used to receive a user input. For example, the electronic device (101) may be in an inactive state. For example, the inactive state may be referred to as a turn-off state in which a power management integrated circuit (PMIC) of the electronic device (101) has stopped providing power and requires booting to transition to an active state. The inactive state may be referred to as an idle state, a standby state, or a low power state. The user may press the key button (281) to transition the electronic device (101) from the inactive state to the active state. The processor may be configured to transition the electronic device (101) from an inactive state to an active state based on identifying a user input to the key button (281). For example, as the electronic device (101) transitions from an inactive state to an active state, the cover display (284) may be configured to display visual information. In addition, the key button (281) may be used to receive a designated user input. For example, the key button (281) may be used to receive a user input for adjusting the volume of an audio signal output from a speaker.

[0182] The fingerprint recognition unit (282) may be used to identify a designated user of the electronic device (101). When a user places a finger on the fingerprint recognition unit (282), the fingerprint recognition unit (282) may provide data representing a fingerprint pattern to a processor (e.g., processor (120) of FIG. 1). The processor may be configured to identify whether a first pattern of a fingerprint identified through the data corresponds to a second pattern of a fingerprint registered in a memory. According to one embodiment, the fingerprint recognition unit (282) may be implemented in a manner that utilizes a key button (281). For example, the processor may be configured to identify whether a first pattern of a fingerprint identified through the key button (281) corresponds to a second pattern of a fingerprint registered in the memory. The processor may be configured to perform an operation (e.g., unlocking) that allows use of the electronic device (101) based on identifying the first pattern corresponding to the second pattern.

[0183] The electronic device (101) can be used in a folded state. For example, the electronic device (101) can provide visual information (e.g., images and / or videos) through the cover display (284) in the folded state. For example, the electronic device (101) can be configured to control a speaker to emit an audio signal in the folded state.

[0184] In one embodiment, the key button (281) and / or the fingerprint recognition unit (282) may be positioned so that a user can use the key button (281) and / or the fingerprint recognition unit (282) within the folded state. For example, the key button (281) may be positioned so that it is exposed to the outside of the foldable housing (201) in the folded state so that a user can press the key button (281) within the folded state.

[0185] According to one embodiment, the key button (281) and / or the fingerprint recognition unit (282) may be positioned on a side of the first housing (210) opposite the first hinge assembly (240) (e.g., the second side (212) of FIG. 11). For example, a portion of the key button (281) and / or the fingerprint recognition unit (282) may be exposed to the side (212) of the first housing (210), such that the user may use the key button (281) and / or the fingerprint recognition unit (282) in a folded state. For example, in a folded state, the key button (281) and / or the fingerprint recognition unit (282) may be positioned above the second hinge cover (272). In a folded state, the key button (281) and / or the fingerprint recognition unit (282) may be opposite the first hinge cover (271).

[0186] An electronic device (1001) according to a comparative example illustrated in FIG. 10b represents an electronic device in which a key button (281) and / or a fingerprint recognition unit (282) are disposed on one side (231) of a third housing (230). Referring to FIG. 10b, when the key button (281) and / or the fingerprint recognition unit (282) are disposed on one side (e.g., the fifth side (231) of FIG. 11) of the third housing (230), in an unfolded state (1000a) of the electronic device (101), the key button (281) and / or the fingerprint recognition unit (282) may be exposed to the outside of the electronic device (101). When the third housing (230) is in an intermediate state (1000b) folded with respect to the second housing (220), the key button (281) and / or the fingerprint recognition unit (282) may be exposed to the outside of the electronic device (101). When the electronic device (101) is in a folded state (1000c), the third housing (230) is positioned between the first housing (210) and the second housing (220), so that one side (231) of the third housing (230) is not exposed to the outside of the electronic device (101) and may be covered by the first hinge cover (271) and the first hinge assembly (240). Since one side (231) of the third housing (230) is covered, the key button (281) and / or the fingerprint recognition unit (282) may not be used.

[0187] According to one embodiment, the key button (281) and / or the fingerprint recognition unit (282) may be positioned on one side (212) of the first housing (210) so that the key button (281) and / or the fingerprint recognition unit (282) can be used not only in the unfolded state, the intermediate state, but also in the folded state.

[0188] As described above, the electronic device (101) according to one embodiment may include a foldable housing (201) that folds inwardly. The foldable housing (201) in an unfolded state may be folded in such a manner that the third housing (230) is first folded inwardly relative to the second housing (220), and then the first housing (210) is folded inwardly relative to the second housing (220). In the third state, in order for the third housing (230) to be positioned between the first housing (210) and the second housing (220), a space may be required between the first housing (210) and the second housing (220) in which the third housing (230) can be positioned. Hereinafter, the structure of the electronic device (101) for providing the aforementioned folding method will be described.

[0189] FIG. 11 illustrates an electronic device according to one embodiment in a folded state.

[0190] Referring to FIG. 11, within the folded state, the first housing (210), the second housing (220), and the third housing (230) may overlap each other. For example, the third housing (230) may be positioned between the first housing (210) and the second housing (220). A space may be formed between the first housing (210) and the second housing (220) within the folded state so that the third housing (230) may be positioned between the first housing (210) and the second housing (220).

[0191] Within the folded state of the electronic device (101), the first hinge cover (271) may face the second hinge cover (272) with the foldable housing (201) interposed therebetween. For example, the first hinge cover (271) may be disposed on one side (e.g., in the -x direction) of the foldable housing (201), and the second hinge cover (272) may be disposed on the other side (e.g., in the +x direction) of the foldable housing (201). The first hinge cover (271) may be opposite to the second hinge cover (272). The first housing (210) and the second housing (220) may partially surround the first hinge cover (271). For example, the first housing (210) and the second housing (220) can rotate outside the first hinge cover (271) when unfolded or folded. The second housing (220) and the third housing (230) can partially surround the second hinge cover (272). For example, the second housing (220) and the third housing (230) can rotate outside the second hinge cover (272) when unfolded or folded.

[0192] As illustrated in FIG. 11, the first hinge cover (271) and the second hinge cover (272) can protrude from the foldable housing (201) in a folded state.

[0193] For example, the first housing (210) may, in a folded state, include a first side (211) adjacent to the first hinge cover (271) and a second side (212) opposite the first side (211). At least one key button (281) and / or a fingerprint recognition unit (282) may protrude from the second side (212) and be exposed to the outside of the foldable housing (201). The second housing (220) may, in a folded state, include a third side (221) adjacent to the first hinge cover (271) and a fourth side (222) opposite the third side (221). The fourth side (222) may be adjacent to the second hinge cover (272). The third housing (230) may, in a folded state, include a fifth side (231) facing the first hinge cover (271) and a sixth side (232) opposite the fifth side (231). The sixth side (232) may be adjacent to the second hinge cover (272).

[0194] For example, the first hinge cover (271) may protrude from the first side (211) and the third side (221). For example, the first side (211) and the third side (221) may be substantially aligned within the folded state. The first side (211) and the third side (221) being substantially aligned may be referred to as the first side (211) and the third side (221) being positioned on the same imaginary line (L1) within the folded state. The portion of the first hinge cover (271) protruding from the first side (211) and the third side (221) may protrude by about 2.0 mm to about 2.5 mm. For example, the distance (e.g., first distance (1101)) from the outer surface (271a) of the first hinge cover (271) to the first side (211) (or third side (221)) may be about 2.3 mm, but is not limited thereto.

[0195] For example, the outer surface (272a) of the second hinge cover (272) may protrude from the fourth side (222) and the sixth side (232). For example, the fourth side (222) and the sixth side (232) may be substantially aligned in the folded state. The fourth side (222) and the sixth side (232) being substantially aligned may be referred to as the fourth side (222) and the sixth side (232) being positioned on the same imaginary line (L2) in the folded state. The portion of the second hinge cover (272) that protrudes from the fourth side (222) and the sixth side (232) may protrude by about 1.5 mm to about 2.0 mm. For example, the distance (e.g., the second distance (1102)) from the outer surface (272a) of the second hinge cover (272) to the fourth side (222) (or the sixth side (232)) may be about 1.7 mm, but is not limited thereto.

[0196] The first distance (1101) and the second distance (1102) may vary depending on the structure of the electronic device (101). For example, the first distance (1101) and the second distance (1102) may vary depending on the design of the first hinge assembly (240) and the second hinge assembly (250), and the thickness of the foldable housing (201). The first distance (1101) and the second distance (1102) may be greater than 0. The first distance (1101) and the second distance (1102) may be smaller than the first thickness of the first housing (210) (e.g., the first thickness (T1) of FIG. 21), the second thickness of the second housing (220) (e.g., the second thickness (T2) of FIG. 21), and the third thickness of the third housing (230) (e.g., the third thickness (T3) of FIG. 21).

[0197] According to one embodiment, the width of the first housing (210), the width of the second housing (220), and the width of the third housing (230) may be different from each other. In the present disclosure, the width may be referred to as the length in the direction perpendicular to the rotational axis of the foldable housing (201). The first housing (210) may have a first width (W1). The second housing (220) may have a second width (W2). The third housing (230) may have a third width (W3).

[0198] According to one embodiment, in a folded state, when the third housing (230) is positioned between the first housing (210) and the second housing (220), the third width (W3) may be narrower than the first width (W1) and the second width (W2) so that the third housing (230) does not interfere with the flexible display (260). Since the third width (W3) is narrower than the first width (W1) and the second width (W2), in a folded state, the fifth side (231) may not be aligned with the third side (221) and the first side (211). The fifth side (231) may be spaced apart from an imaginary line (L1) connecting the first side (211) and the third side (221) in a direction (e.g., +x direction) toward the second hinge cover (272).

[0199] In one embodiment, the first width (W1) may be wider than the second width (W2) and the third width (W3). In the folded state, the second side (212) of the first housing (210) may be substantially aligned with the outer surface (272a) of the second hinge cover (272). The substantial alignment of the first side (211) and the outer surface (272a) of the second hinge cover (272) may be referred to as meaning that, in the folded state, the first side (211) and the outer surface (272a) of the second hinge cover (272) are positioned on the same imaginary line (L3). If the second side (212) is not substantially aligned with the outer surface (272a) of the second hinge cover (272) and is positioned outside (e.g., in the +x direction) of the outer surface (272a) of the second hinge cover (272), the first housing (210) may be easily damaged by impact because the first housing (210) protrudes outward. Since the second side (212) is substantially aligned with the outer surface (272a) of the second hinge cover (272), the foldable housing (201) may be compact in a folded state. At least one key button (281) and / or fingerprint recognition unit (282) exposed through the second side (212) may protrude from the virtual line (L3) so that a user can easily press the at least one key button (281) and / or fingerprint recognition unit (282).

[0200] For example, since the first side (211) and the third side (221) are substantially aligned, the second width (W2) may correspond to a value obtained by subtracting the second distance (1102) from the first width (W1). For example, when the first width (W1) is about 67.2 mm and the second distance (1102) is about 1.7 mm, the second width (W2) may be about 65.5 mm (67.2 mm - 1.7 mm), but is not limited thereto.

[0201] For example, since the cap (320) (e.g., the first cap (321) and the second cap (322) of FIG. 2C) is positioned between the first frame (e.g., the first frame (311) of FIG. 2C) and the second frame (e.g., the first frame (312) of FIG. 2C), in the folded state, the cap (320) may be positioned close to the fifth side (231) of the third housing (230). In the folded state, the fifth side (231) of the third housing (230) may be spaced apart from the cap (320) (e.g., the protrusion (320a)). When the fifth side (231) comes into contact with the protrusion (320a) of the cap (320), the third housing (230) may physically collide with the cap (320) when it is unfolded or folded, which may cause damage to the electronic device (101). As the fifth side (231) is spaced apart from the cap (320), the damage can be prevented. For example, the fifth side (231) can be spaced apart from the cap (320) in a direction (e.g., +x direction) toward the second hinge cover (272), so that a gap (1103) can be formed between the fifth side (231) and the cap (320). For example, the gap (1103) can be about 3 mm or less (e.g., about 0.75 mm), but is not limited thereto.

[0202] For example, since the fourth side (222) and the sixth side (232) are substantially aligned, the third width (W3) may correspond to a value obtained by subtracting the length of the cap (320) from the virtual line (L1) from the second width (W2) and the gap (1103) between the fifth side (231) and the cap (320). For example, when the second width (W2) is about 65.5 mm, the length of the cap (320) is about 2.5 mm, and the gap (1103) is about 0.8 mm, the third width (W3) may be about 62.2 mm (65.5 mm - 2.5 mm - 0.8 mm), but is not limited thereto.

[0203] According to one embodiment, since the first housing (210), the second housing (220), and the third housing (230) each have different widths, a foldable housing (201) having an inwardly folding structure can be formed. Since the third housing (230) has a structure that allows it to be positioned between the first housing (210) and the second housing (220), the three housings can be stably folded or unfolded. If the first width (W1), the second width (W2), and the third width (W3) are substantially the same, the foldable housing (201) may not be implemented, the usability of the electronic device (101) may be degraded, or the communication performance of the electronic device (101) may be degraded.

[0204] Fig. 12a illustrates a portion of an electronic device according to one embodiment. Fig. 12b illustrates a portion of an electronic device according to a comparative example.

[0205] State (1200a) of FIG. 12a illustrates a portion of an electronic device (101) according to one embodiment, within a folded state. State (1200b) of FIG. 12a illustrates a portion of an electronic device (101) according to one embodiment, within an unfolded state.

[0206] Referring to state (1200a) of FIG. 12A, as described above, in the folded state, the third housing (230) may be spaced apart from the cap (320) (e.g., the first cap (321) or the second cap (322) of FIG. 2C). For example, as the fifth side (231) is spaced apart from the cap (320), a gap (1203) may be formed between the cap (320) and the fifth side (231). In the folded state, a portion of the flexible display (260) may be at least partially bendable. For example, a portion of the flexible display (260) disposed between the first housing (210) and the second housing (220) may be at least partially bendable. In the folded state, the portion of the flexible display (260) may be at least partially positioned inside the cap (320). Since the fifth side (231) of the third housing (230) is spaced apart from the cap (320), the fifth side (231) can be spaced apart from the part of the flexible display (260). The part of the flexible display (260) can be referred to as the first deformation region (410) of FIG. 5A.

[0207] Referring to the state (1200b) of FIG. 12a, as the first housing (210) and the second housing (220) are unfolded, the portion of the flexible display (260) that was bent can be unfolded. In the unfolded state, the portion of the flexible display (260) can be unfolded substantially flat. As the entire area of ​​the flexible display (260) is substantially flat in the unfolded state, the display area of ​​the flexible display (260) can be formed substantially uniformly. Since the display area can be formed uniformly, the visibility of visual information displayed on the flexible display (260) can be secured.

[0208] State (1200c) of FIG. 12b shows a part of an electronic device (1201) according to a comparative example in a folded state. State (1200d) of FIG. 12b shows a part of an electronic device (1201) according to a comparative example in an unfolded state.

[0209] Referring to FIG. 12B, the electronic device (101) according to the comparative example may be referred to as an electronic device having a structure in which the third width of the third housing (230) (e.g., the third width (W3) of FIG. 11) is substantially the same as the second width of the second housing (220) (e.g., the second width (W2) of FIG. 11). When the third width (W3) is substantially the same as the second width (W2), the fifth side surface (231) may be substantially aligned with the first side surface (211) and the third side surface (221). The electronic device (1201) according to the comparative example may be difficult to physically implement.

[0210] In the case of a structure such as the electronic device (1201) according to the comparative example, since the third width (W3) of the third housing (230) is substantially the same as the second width (W2) of the second housing (220), in the folded state, the fifth side (231) can be substantially aligned with the first side (211) and the third side (221). As the fifth side (231) is substantially aligned with the first side (211) and the third side (221), the flexible display (260) can be pushed inward (e.g., in the -x direction) of the first hinge cover (271) to avoid contact with the third housing (230). Referring to state (1200c) of FIG. 12b, in order to avoid interference between the flexible display (260) and the third housing (230) in the folded state, a portion (260a) of the flexible display (260) may be recessed toward the first hinge cover (271) (e.g., in the -x direction). As the portion (260a) of the flexible display (260) is recessed, a portion (240a) of the first hinge assembly (240) may be pushed in the direction in which the third housing (230) extends (e.g., in the -x direction). Referring to state (1200d) of Fig. 12b, when a portion (240a) of the first hinge assembly (240) is pushed out, the portion (240a) may be positioned in a physically non-implementable position within the unfolded state because it is separated from another portion of the first hinge assembly (240) accommodated within the first hinge cover (271). Thus, the structure depicted within state (1200c) of Fig. 12b cannot be physically implemented.

[0211] Even if it is assumed that a structure such as the state (1200c) of FIG. 12b can be physically implemented, the visibility of visual information displayed on the flexible display (260) may deteriorate. Referring to the state (1200d) of FIG. 12b, in the unfolded state of the electronic device (1201) according to the comparative example, the portion (260a) of the sunken flexible display (260) may maintain the sunken shape. When visual information is displayed on the portion of the sunken flexible display (260), the display area of ​​the flexible display (260) may not be uniform because the surface of the flexible display (260) is uneven. Since the display area may be formed unevenly, the visual information displayed on the flexible display (260) may be distorted, thereby deteriorating the visibility.

[0212] FIGS. 13A and 13B partially illustrate a first hinge assembly, a flexible display, and a third housing of an electronic device according to one embodiment.

[0213] State (1300a) of FIG. 13a illustrates a portion of an electronic device (101) according to one embodiment, in a folded state. State (1300b) of FIG. 13a illustrates a portion of an electronic device (101) according to one embodiment, in an unfolded state.

[0214] Referring to state (1300a) of FIG. 13a, the flexible display (260) may include a first deforming area (410) that is deformed by the first hinge assembly (240) in a folded state.

[0215] For example, the first hinge assembly (240) may include first hinge plates (e.g., a first plate (241) and a second plate (242)). Each of the first plate (241) and the second plate (242) may be rotatably connected to a first hinge bracket (243). The first plate (241) may be coupled to the first housing (210). The second plate (242) may be coupled to the second housing (220). The first housing (210) and the second housing (220) may be rotatably connected to the first hinge bracket (243) by the first plate (241) and the second plate (242) being rotatable.

[0216] As described above, the first deformation region (410) may include a first curved portion (412), a second curved portion (413), and a first flat portion (411).

[0217] For example, the first flat portion (411) may be positioned between the first curved portion (412) and the second curved portion (413). The first curved portion (412) may be bent from a first end (412a) of the first flat portion (411) to a second end (412b) of an area of ​​the flexible display (260) disposed on the first housing (210) (e.g., the first area (430) of FIG. 5A). The second curved portion (413) may be bent from a third end (413a) of the first flat portion (411) opposite to the first end (412a) to a fourth end (413b) of an area of ​​the flexible display (260) disposed on the second housing (220) (e.g., the second area (440) of FIG. 5A).

[0218] In one embodiment, the first flat portion (411) may be substantially flat. The first flat portion (411) may be substantially perpendicular to the first housing (210) and the second housing (220).

[0219] For example, a protrusion (e.g., a protrusion (320a) of FIG. 2C) of a cap (320) (e.g., a first cap (321) or a second cap (322) of FIG. 2C) protruding toward the flexible display (260) may be spaced apart from the flexible display (260). For example, a thickness (1310) of the protrusion (320a) may be about 0.2 mm or more (e.g., about 0.60 mm). A gap (1320) between the first deformation region (410) and the protrusion (320a) may be about 0.1 mm to about 1.0 mm (e.g., about 0.40 mm). For example, a thickness (1330) of the flexible display (260) may be about 0.74 mm. For example, the distance (1340) from the flexible display (260) to the outer surface (271a) of the first hinge cover (271) may be about 3.06 mm. As described above, the fifth side (231) of the third housing (230) may be spaced apart from the protrusion (320a) of the cap (320), thereby forming a gap between the fifth side (231) and the cap (320). The gap may be about 3.0 mm or less (e.g., about 0.8 mm). The distance between the fifth side (231) and the first flat portion (411) may be about 1.80 mm (e.g., 0.8 mm + 0.60 mm + 0.40 mm).

[0220] For example, to prevent interference between the flexible display (260) and the third housing (230), an imaginary line (L4) extending from the second end (412b) of the first curved portion (412) to the fourth end (413b) of the second curved portion (413) may be spaced apart from the fifth side (231). For example, the fifth side (231) may be spaced apart from the imaginary line (L4) in a direction (e.g., +x direction) toward the second hinge cover (272). For example, the distance from the imaginary line to the fifth side (231) may be about 0.25 mm. As illustrated in FIG. 6A, when the corner of the third housing (230) includes an angled portion, interference between the flexible display (260) and the third housing (230) can be avoided by causing the fifth side (231) to be spaced apart from the virtual line (L4) toward the second hinge cover (272). In this case, the third housing (230) can be spaced apart from an area of ​​the flexible display (260) disposed on the first housing (210) by about 0.30 mm (e.g., a part of the first display area (261)) and can be spaced apart from an area of ​​the flexible display (260) disposed on the second housing (220) by about 0.30 mm (e.g., a part of the second display area (262)).

[0221] Referring to FIG. 13b, when the corner of the third housing (230) is substantially rounded, a portion of the fifth side surface (231) may be spaced apart from an imaginary line (L4) extending from the second end (412b) of the first curved portion (412) to the fourth end (413b) of the second curved portion (413) toward the first hinge cover (271) (e.g., in the -x direction). Referring to FIG. 13b, the corner of the third housing (230) may not be flat but may be rounded. When the fifth side surface (231) is rounded, a portion of the fifth side surface (231) may protrude from the imaginary line (L4) toward the first hinge cover (271) (e.g., in the -x direction) because an area interfering with the flexible display (260) when the third housing (230) is rotated may be reduced. For example, the distance (1550) from the virtual line (L4) to the fifth side (231) may be about 0.25 mm. In this case, the third housing (230) may be spaced apart from an area of ​​the flexible display (260) disposed on the first housing (210) (e.g., the first area (430)) by about 0.40 mm, and may be spaced apart from an area of ​​the flexible display (260) disposed on the second housing (220) (e.g., a part of the second area (440)) by about 0.40 mm.

[0222] Fig. 14a illustrates a portion of an electronic device according to one embodiment. Fig. 14b illustrates a portion of an electronic device according to a comparative example.

[0223] Referring to FIG. 14A, the thickness of the foldable housing (201) of the electronic device (101) according to one embodiment may be thicker than the thickness of the first hinge cover (271) and the thickness of the second hinge cover (272). For example, the first thickness (T1) of the first housing (210) and the second thickness (T2) of the second housing (220) may be thicker than the fourth thickness (T4) of the first hinge cover (271) positioned between the first housing (210) and the second housing (220).

[0224] State (1400a) of FIG. 14a illustrates a portion of an electronic device (101) according to one embodiment, within an unfolded state. State (1400b) of FIG. 14a illustrates a portion of an electronic device (101) according to one embodiment, within an unfolded state.

[0225] Referring to the state (1400a) of FIG. 14a, since the first thickness (T1) and the second thickness (T2) are thicker than the fourth thickness (T4), in the unfolded state, the first housing (210) and the second housing (220) may protrude beyond the first hinge cover (271). For example, when the electronic device (101) in the unfolded state is placed on the floor, the first housing (210) and the second housing (220) may touch the floor, and the first hinge cover (271) may be spaced apart from the floor. Referring to the state (1400a) of FIG. 14a, the first housing (210) and the second housing (220) may partially surround the first hinge cover (271). The first hinge cover (271) can be partially exposed between the first housing (210) and the second housing (220).

[0226] Referring to the state (1400b) of FIG. 14a, in the unfolded state, as the first housing (210) and the second housing (220) are rotated to face each other, the portion of the first hinge cover (271) exposed may increase. The first housing (210) and the second housing (220) may be rotated on the outside of the first hinge cover (271). Since the first thickness (T1) and the second thickness (T2) are thicker than the fourth thickness (T4), the first hinge assembly (e.g., the first hinge assembly (240) of FIG. 14b) accommodated within the first hinge cover (271) may be covered by the first housing (210) and the second housing (220). When the foldable housing (201) includes a cover plate (1410) that covers the back surface of the first housing (210) and the back surface of the second housing (220), in the folded state, the first hinge assembly (e.g., the first hinge assembly (240) of FIG. 14b) may be covered by the cover plate. In the unfolded state, the first hinge assembly (240) may be protected by being covered by the first housing (210) and the second housing (220). The above-described descriptions may also be substantially equally applied to the second hinge assembly (e.g., the second hinge assembly (250) of FIG. 4a) positioned between the second housing (220) and the third housing (e.g., the third housing (230) of FIG. 4a).

[0227] State (1400c) of FIG. 14b shows a part of an electronic device (1401) according to a comparative example in an unfolded state. State (1400d) of FIG. 14b shows a part of an electronic device (1401) according to a comparative example in an unfolded state.

[0228] The electronic device (1401) according to the comparative example may be referred to as an electronic device having a structure in which at least a portion of the foldable housing (201) has a thickness no thicker than the thickness of the first hinge cover (271) and / or the thickness of the second hinge cover (272). For example, as illustrated in FIG. 14B, in the electronic device (1401) according to the comparative example, the second thickness (T2) may be smaller than or equal to the fourth thickness (T4).

[0229] Referring to state (1400c) of FIG. 14b, since the second thickness (T2) is smaller than or equal to the fourth thickness (T4), in the unfolded state, the first hinge cover (271) may protrude beyond the second housing (220) and the first hinge cover (271). The outer surface (271a) of the first hinge cover (271) may be positioned at substantially the same position as the back surface of the second housing (220), or may protrude from the back surface of the second housing (220).

[0230] Referring to state (1400d) of FIG. 14b, in the unfolded state, as the first housing (210) and the second housing (220) are rotated to face each other, the portion of the first hinge cover (271) exposed may increase. The first housing (210) and the second housing (220) may be rotated on the outside of the first hinge cover (271). Since the second thickness (T2) is equal to or less than the fourth thickness (T4), the first hinge assembly (240) accommodated in the first hinge cover (271) may be exposed through the back surface of the second housing (220). As the first hinge assembly (240) is exposed in the unfolded state, the first hinge assembly (240) may not be protected and may be damaged. For example, if foreign matter enters the first hinge assembly (240), damage may be caused to the interlocking gears of the first hinge assembly (240) or the operability of the first hinge assembly (240) may be deteriorated.

[0231] According to one embodiment, the thickness of the foldable housing (201) is thicker than the thickness of the first hinge cover (271) and the thickness of the second hinge cover (272), so that the first hinge assembly (240) and the second hinge assembly (250) can be protected. Not only in the folded state, but also in the unfolded state, the first hinge assembly (240) and the second hinge assembly (250) are not exposed, so that the first hinge assembly (240) and the second hinge assembly (250) can be protected. According to one embodiment, the operability of the first hinge assembly (240) and the operability of the second hinge assembly (250) can be stably guaranteed.

[0232] FIG. 15a is a diagram illustrating the usability of at least one key button or fingerprint recognition unit of an electronic device according to the width of the first housing. FIG. 15b is a diagram illustrating the ease of unfolding operation of the electronic device according to the width of the first housing.

[0233] As described above, in the electronic device (101) according to one embodiment, the first width (e.g., the first width (W1) of FIG. 11) of the first housing (210) may be formed to be wider than the second width (e.g., the second width (W2) of FIG. 11) of the second housing (220) and the third width (e.g., the third width (W3) of FIG. 11) of the third housing (230). The electronic device (101) according to one embodiment having a structure in which the first width (W1) is wider than the second width (W2) and the third width (W3) may provide improved usability of at least one key button (281) and / or fingerprint recognition unit (282).

[0234] 1500a of FIG. 15a shows an electronic device (1501) according to a comparative example having a structure in which a first width (W1) of a first housing (210) is not wider than a second width (W2) of a second housing (220) and a third width (W3) of a third housing (230). In the electronic device (1501) according to the comparative example, since the first width (W1) is not wider than the second width (W2) and the third width (W3), the second side surface (212) of the first housing (210) can be positioned inward (e.g., in the -x direction) relative to an outer surface (272a) of the second hinge cover (272) in a folded state. At least one key button (281) and / or fingerprint recognition unit (282) exposed through the second side (212) may be positioned inside the outer surface (272a) of the second hinge cover (272). Since the at least one key button (281) and / or fingerprint recognition unit (282) is positioned inside the outer surface (272a) of the second hinge cover (272), the usability of the at least one key button (281) and / or fingerprint recognition unit (282) may be degraded. For example, when a user presses the at least one key button (281) and / or fingerprint recognition unit (282), the outer surface (272a) of the second hinge cover (272) comes into contact with the finger first, making it difficult for the user to press the at least one key button (281) and / or fingerprint recognition unit (282).

[0235] 1500b of FIG. 15a illustrates an electronic device (101) according to one embodiment, wherein the first width (W1) of the first housing (210) is wider than the second width (W2) of the second housing (220) and the third width (W3) of the third housing (230). As described above, the electronic device (101) according to one embodiment may have the first width (W1) wider than the second width (W2) and the third width (W3). The second side surface (212) of the first housing (210) may be substantially aligned with the outer surface (272a) of the second hinge cover (272).

[0236] Referring to 1500b of FIG. 15a, since the second side (212) is substantially aligned with the outer surface (272a) of the second hinge cover (272), at least one key button (281) and / or fingerprint recognition unit (282) exposed through the second side (212) can be positioned outward (e.g., in the +x direction) from the outer surface (272a) of the second hinge cover (272) in the folded state. Since the at least one key button (281) and / or fingerprint recognition unit (282) is positioned outward from the outer surface (272a) of the second hinge cover (272), the usability of the at least one key button (281) and / or fingerprint recognition unit (282) can be improved. For example, a user can easily press at least one key button (281) and / or fingerprint recognition unit (282) exposed through the second side (212) with a finger.

[0237] According to one embodiment, the usability of at least one key button (281) and / or fingerprint recognition unit (282) may be improved by forming the first width (W1) wider than the second width (W2) and the third width (W3). The electronic device (101) according to one embodiment may provide an improved user experience.

[0238] According to one embodiment, an electronic device (101) having a structure in which a first width (W1) is wider than a second width (W2) and a third width (W3) can provide ease of unfolding operation.

[0239] 1500c of FIG. 15b illustrates an electronic device (1501) according to a comparative example having a structure in which a first width (W1) of a first housing (210) is not wider than a second width (W2) of a second housing (220) and a third width (W3) of a third housing (230). In the electronic device (1501) according to the comparative example, since the first width (W1) is not wider than the second width (W2) and the third width (W3), the second side (212) of the first housing (210) can be substantially aligned with the sixth side (232) of the third housing (230) in a folded state. As the second side (212) is substantially aligned with the sixth side (232), a step (1510) can be substantially not formed between the first housing (210) and the third housing (230). In order for a user to change the electronic device (1501) from a folded state to an unfolded state, the first housing (210) may need to be unfolded first. In the case of the electronic device (1501) according to the comparative example in which the step (1510) is not formed, it may be difficult to unfold the first housing (210). For example, in the case of the electronic device (1501) according to the comparative example, it may be difficult to unfold the first housing (210). For example, since the second side (212) and the sixth side (232) are aligned with each other, the user cannot position a finger between the first housing (210) and the third housing (230) to provide an external force to unfold the first housing (210), it may be difficult to unfold the first housing (210). The electronic device (1501) according to the comparative example may not provide ease of unfolding.

[0240] 1500d of FIG. 15a illustrates an electronic device (101) according to one embodiment having a structure in which a first width (W1) of a first housing (210) is wider than a second width (W2) of a second housing (220) and a third width (W3) of a third housing (230). For example, since the first width (W1) is wider than the third width (W3), a step (1510) may be formed due to the difference between the first width (W1) and the third width (W3). In a folded state, a step (1510) may be formed between the first housing (210) and the second hinge cover (272). The step (1510) may be formed between the first housing (210) and the third housing (230). The above step (1510) may protrude in the +x direction more than the fourth side (222) and the sixth side (232). The above step (1510) may be located above the second hinge cover (272) (e.g., in the +z direction).

[0241] Referring to 1500d of FIG. 15a, since a step (1510) is formed between the first housing (210) and the second housing (220) in the folded state, the electronic device (101) according to one embodiment can provide ease of unfolding. For example, a user can easily unfold the first housing (210) by applying an external force to the step (1510) between the first housing (210) and the second housing (220) with a finger.

[0242] According to one embodiment, the first width (W1) may be formed wider than the second width (W2) and the third width (W3), thereby improving ease of unfolding. The electronic device (101) according to one embodiment may provide an improved user experience.

[0243] FIG. 16A illustrates a foldable housing of an electronic device according to one embodiment. FIG. 16B is a diagram showing the radiation performance of an antenna of the electronic device according to the width of the first housing.

[0244] Referring to FIG. 16A, the foldable housing (201) may include a plurality of conductive portions (1610) formed on a side surface. For example, the plurality of conductive portions (1610) may be formed along at least a portion of a side surface of the foldable housing (201). For example, the plurality of conductive portions (1610) may be formed along at least a portion of a side surface of the first housing (210). The plurality of conductive portions (1610) may be separated from each other.

[0245] The plurality of conductive portions (1610) may operate as antenna radiators for radiating signals when powered by a wireless communication module (e.g., the wireless communication module (192) of FIG. 1). For example, the wireless communication module (192) may communicate with an external electronic device using at least some of the plurality of conductive portions (1610). The plurality of conductive portions (1610) operating as antenna radiators may include a feeding point to which a feeding signal is provided and a ground point electrically connected to the ground.

[0246] An electronic device (101) according to one embodiment may include an antenna module (1620) used for communication with an external electronic device. For example, the antenna module (1620) may include, but is not limited to, a mmWave (millimeter wave) antenna module used for 5G communication. For example, the antenna module (1620) may be disposed within the first housing (210). For example, the antenna module (1620) may be disposed close to a second side (212) of the first housing (210) opposite to a first side (211) of the first housing (210) adjacent to the first hinge assembly (240) in an unfolded state. In the folded state, since the second side (212) is exposed toward the outside of the electronic device (101), the antenna module (1620) can be positioned close to the second side (212) so as to be able to radiate or receive signals not only in the unfolded state but also in the folded state. The antenna module (1620) can be positioned so as to face the second side (212) so as to radiate signals toward the second side (212).

[0247] Referring to FIG. 16b, since the first width of the first housing (210) (e.g., the first width (W1) of FIG. 11) is formed wider than the second width of the second housing (220) (e.g., the second width (W2) of FIG. 11) and the third width of the third housing (230) (e.g., the third width (W3) of FIG. 11), the radiation performance of the antenna of the electronic device (101) can be improved.

[0248] 1600a of FIG. 16b shows an electronic device (1601) according to a comparative example having a structure in which the first width (W1) of the first housing (210) is not wider than the second width (W2) of the second housing (220) and the third width (W3) of the third housing (230). In the electronic device (1601) according to the comparative example, since the first width (W1) is not wider than the second width (W2) and the third width (W3), the second side surface (212) of the first housing (210) can be positioned inward (e.g., in the -x direction) relative to the outer surface (272a) of the second hinge cover (272) in the folded state. In the electronic device (1601) according to the comparative example, the step (1510) may not be substantially formed.

[0249] An antenna including a plurality of conductive portions (e.g., a plurality of conductive portions (1610) of FIG. 16a) formed within the second side (212) and / or an antenna module (e.g., an antenna module (1620) of FIG. 16a) disposed close to the second side (212) can radiate electromagnetic waves through the second side (212). The antenna including a plurality of conductive portions (1610) and / or the antenna module (1620) can transmit or receive signals through the electromagnetic waves. In the case of the electronic device (1601) according to the comparative example, since the second side (212) is positioned inward from the outer surface (272a) of the second hinge cover (272), a part (1603) of the electromagnetic wave radiation area (1602) of the second hinge cover (272) and / or the edge of the third housing (230) can overlap. A portion (1603) of the electromagnetic wave radiation area (1602) overlapping with the edge of the second hinge cover (272) and / or the third housing (230) may be shielded by the edge of the second hinge cover (272) and / or the third housing (230), thereby making it difficult to transmit and / or receive signals through the portion (1603) of the electromagnetic wave radiation area (1602). The electromagnetic wave radiation area (1602) of the antenna and / or antenna module (1620) including a plurality of conductive portions (1610) may be substantially reduced by the edge of the second hinge cover (272) and / or the third housing (230). As the radiation area (1602) capable of transmitting and / or receiving signals is reduced, the communication performance of the electronic device (1601) according to the comparative example may deteriorate.

[0250] 1600b of FIG. 16b illustrates an electronic device (101) according to one embodiment, wherein a first width of a first housing (210) (e.g., a first width (W1) of FIG. 11) is wider than a second width of a second housing (220) (e.g., a second width (W2) of FIG. 11) and a third width of a third housing (230) (e.g., a third width (W3) of FIG. 11). As described above, a step (1510) may be formed between the first housing (210) and the second hinge cover (272).

[0251] In an electronic device (101) according to one embodiment, since the first width (W1) is wider than the second width (W2) and the third width (W3), the second side surface (212) of the first housing (210) may be positioned outside (e.g., in the +x direction) the outer surface (272a) of the second hinge cover (272) in the folded state. As the step (1510) is formed, the radiation area (1602) may not be shielded by the edge of the second hinge cover (272) and / or the third housing (230), or the shielded portion may be reduced.

[0252] According to one embodiment, an antenna including a plurality of conductive portions (1610) formed within the second side (212) and / or an antenna module (1620) disposed close to the second side (212) can radiate electromagnetic waves through the second side (212). The antenna including a plurality of conductive portions (1610) and / or the antenna module (1620) can transmit or receive signals through the electromagnetic waves. In the case of the electronic device (101) according to one embodiment, since the second side (212) is positioned outside the outer surface (272a) of the second hinge cover (272), the radiation area (1602) of the electromagnetic waves may not be covered by the corners of the second hinge cover (272) and / or the third housing (230). Since the electromagnetic wave radiation area (1602) of the antenna and / or antenna module (1620) including a plurality of conductive portions (1610) is not covered by the edge of the second hinge cover (272) and / or the third housing (230), the electronic device (101) according to one embodiment may have improved communication performance compared to the electronic device (1601) according to the comparative example.

[0253] FIGS. 17A and 17B illustrate an electronic device according to one embodiment for improving the usability of at least one key button or fingerprint recognition unit.

[0254] As described above, when the second side (212) of the first housing (210) is positioned inward (e.g., in the -x direction) relative to the outer surface (272a) of the second hinge cover (272), the usability of at least one key button (281) and / or fingerprint recognition unit (282) may be weakened. When the electronic device (101) according to one embodiment has a foldable housing (201) having a structure in which the second side (212) is positioned inward relative to the outer surface (272a) of the second hinge cover (272), in order to enhance the usability of at least one key button (281) and / or fingerprint recognition unit (282), the foldable housing (201) may have a structure as illustrated in FIG. 17a or FIG. 17b.

[0255] Referring to FIG. 17a, the size of at least one key button (281) and / or fingerprint recognition unit (282) exposed through the second side (212) of the first housing (210) may be increased. For example, at least one key button (281) and / or fingerprint recognition unit (282) may be additionally extended toward the second hinge cover (272) (e.g., in the +x direction), such that at least one key button (281) and / or fingerprint recognition unit (282) may be positioned outside (e.g., in the +x direction) of the outer surface (272a) of the second hinge cover (272). For example, at least one key button (281) and / or fingerprint recognition unit (282) may protrude beyond the outer surface (272a) of the second hinge cover (272) in the folded state. In the case where the electronic device (101) according to one embodiment has the foldable housing (201) of the above structure, even if the second side (212) is positioned inward from the outer surface (272a) of the second hinge cover (272), at least one key button (281) and / or fingerprint recognition unit (282) may be positioned at least partially outward from the outer surface (272a) of the second hinge cover (272). Since the at least one key button (281) and / or fingerprint recognition unit (282) is positioned at least partially outward from the outer surface (272a) of the second hinge cover (272), it may be easy for a user to press the at least one key button (281) and / or fingerprint recognition unit (282). According to one embodiment, the usability of at least one key button (281) and / or fingerprint recognition unit (282) may be improved because at least one key button (281) and / or fingerprint recognition unit (282) can be easily pressed.

[0256] Referring to FIG. 17b, the second side (212) of the first housing (210) may include a groove (210a). For example, the groove (210a) may be referred to as a chamfered portion in that a portion of the first housing (210) is removed. The second side (212) on which at least one key button (281) and / or a fingerprint recognition unit (282) is exposed may be formed by having an incline with respect to an imaginary line (L5) aligned with the sixth side (232) of the third housing (230). The at least one key button (281) and / or the fingerprint recognition unit (282) may be exposed to the outside of the first housing (210) through the groove (210a). As the groove (210a) is tilted, the user may be able to easily press at least one key button (281) and / or fingerprint recognition unit (282). For example, when the user presses at least one key button (281) and / or fingerprint recognition unit (282), the user may press at least one key button (281) and / or fingerprint recognition unit (282) without interference from the second hinge cover (272). According to one embodiment, since the at least one key button (281) and / or fingerprint recognition unit (282) can be easily pressed, the usability of the at least one key button (281) and / or fingerprint recognition unit (282) may be improved.

[0257] FIGS. 18A and 18B illustrate an electronic device according to one embodiment for improving ease of unfolding operation.

[0258] As described above, when the second side (212) of the first housing (210) is positioned inward (e.g., in the -x direction) relative to the outer surface (272a) of the second hinge cover (272), the unfolding operation of the first housing (210) may be difficult. When the electronic device (101) according to one embodiment has a foldable housing (201) having a structure in which the second side (212) is positioned inward relative to the outer surface (272a) of the second hinge cover (272), in order to enhance the ease of the unfolding operation, the foldable housing (201) may have a structure as illustrated in FIG. 18a or FIG. 18b.

[0259] Referring to FIG. 18A, the second side (212) of the first housing (210) and the sixth side (232) of the third housing (230) may include a recessed portion (1810) that is recessed inwardly (e.g., in the -x direction). The recessed portion (1810) may be formed at a portion of the foldable housing (201) where the first housing (210) and the third housing (230) come into contact. As the recessed portion (1810) is formed, a step may be formed between the first housing (210) and the third housing (230) on which a user's finger may be placed. If the recessed portion (1810) is not formed, it may be difficult for a user to provide an external force to the first housing (210) to unfold the first housing (210) because the second side (212) and the sixth side (232) are substantially aligned. When the recessed portion (1810) is formed, a step is formed between the second side (212) and the sixth side (232) on which the user's finger can be placed, so that the user can place the finger on the recessed portion (1810) and apply an external force in the direction in which the first housing (210) is unfolded in order to unfold the first housing (210). According to one embodiment, the ease of unfolding of the first housing (210) can be improved by the recessed portion (1810).

[0260] Referring to FIG. 18b, the second side (212) of the first housing (210) may include a protrusion (1820). For example, the protrusion (1820) may protrude outwardly (e.g., in the +x direction) from the second side (212). Due to the protrusion (1820), the second side (212) may be uneven rather than flat. A user may unfold the first housing (210) by applying an external force to the protrusion (1820) with a finger. If the second side (212) is flat, it may be difficult to unfold the first housing (210) because it is difficult for a frictional force to act between the user's finger and the second side (212). When the second side (212) includes a protrusion (1820), frictional force can be easily applied between the user's finger and the second side (212) by the protrusion (1820), so that the first housing (210) can be easily unfolded. According to one embodiment, the ease of unfolding of the first housing (210) can be improved by the protrusion (1820).

[0261] FIG. 19 illustrates an electronic device according to one embodiment for improving the radiation performance of an antenna of an electronic device.

[0262] As described above, when the second side (212) of the first housing (210) is positioned inward (e.g., in the -x direction) from the outer surface (272a) of the second hinge cover (272), the communication performance may be degraded as the radiation area is covered by the outer surface (272a) of the second hinge cover (272). When the electronic device (101) according to one embodiment has a foldable housing (201) having a structure in which the second side (212) is positioned inward from the outer surface (272a) of the second hinge cover (272), in order to enhance the communication performance, the electronic device (101) may include a non-conductive portion (1910) in which at least a portion of the corner of the third housing (230) and / or the second hinge cover (272) is formed of a non-conductive material.

[0263] For example, an electromagnetic wave radiated from an antenna and / or antenna module (e.g., an antenna module (1620) of FIG. 16a) including a plurality of conductive portions (e.g., a plurality of conductive portions (1610) of FIG. 16a) may be shielded by a conductive material (e.g., a metal). The electromagnetic wave may not be electromagnetically affected by a non-conductive material. When at least a portion of a corner of the third housing (230) and / or an outer surface (272a) of the second hinge cover (272) overlapping with a radiation area where the electromagnetic wave is radiated is formed of a non-conductive material (e.g., a polymer), the electromagnetic wave may be radiated without being shielded by the corner of the third housing (230) and / or the second hinge cover (272). In order to overcome the deterioration of communication performance due to the reduction of the radiation area, the corner of the third housing (230) and / or the second hinge cover (272) may include a non-conductive portion (1910) formed of a non-conductive material that does not electromagnetically affect electromagnetic waves. When the corner of the third housing (230) and / or the second hinge cover (272) include a non-conductive portion (1910) formed of a non-conductive material, even if the second hinge cover (272) and the third housing (230) overlap in the radiation area, the radiation area may not be limited, and thus the communication performance of the electronic device (101) may be improved.

[0264] FIGS. 20A, 20B, and 20C illustrate an electronic device according to one embodiment for improving the radiation performance of an antenna of an electronic device.

[0265] As described above, the second side (212) of the first housing (210) may be substantially aligned with the outer surface (272a) of the second hinge cover (272). If the second side (212) is not substantially aligned with the outer surface (272a) of the second hinge cover (272) and is positioned on the outer side (e.g., in the +x direction) of the outer surface (272a) of the second hinge cover (272), the first housing (210) may be easily damaged by impact. In an embodiment, when the electronic device (101) has a foldable housing (201) having a structure in which the second side (212) is positioned on the outer side than the outer surface (272a) of the second hinge cover (272), in order to reduce the damage, the foldable housing (201) may have a structure as illustrated in FIG. 20a, FIG. 20b, or FIG. 20c.

[0266] Referring to Fig. 20a, the corners of the first housing (210) that protrude outward from the outer surface (272a) of the second hinge cover (272) may be rounded. For example, the corners of the first housing (210) may have a gently rounded shape to mitigate impact. If the corners of the first housing (210) are substantially angular, the corners may be easily damaged by impact. As illustrated in Fig. 20a, if the corners of the first housing (210) are rounded, even if an impact is applied to the first housing (210), the impact may be mitigated, thereby reducing damage to the first housing (210).

[0267] Referring to FIG. 20b, the corner of the first housing (210) protruding outward from the outer surface (272a) of the second hinge cover (272) may include a portion (2010) comprising an elastic material. For example, the portion (2010) may include, but is not limited to, elastic silicone. When the corner includes a portion (2010) comprising an elastic material, damage to the first housing (210) may be reduced because impact may be absorbed by the elastic material.

[0268] Referring to FIG. 20c, the first housing (210) protruding outward from the outer surface (272a) of the second hinge cover (272) may include a groove (2020) (or chamfered portion). Since the groove (2020) can change the outline of the foldable housing (201) from an angular shape to a gentle shape, damage to the first housing (210) due to impact can be reduced.

[0269] FIG. 21 illustrates an electronic device according to one embodiment, in an unfolded state.

[0270] Referring to FIG. 21, the first thickness (T1) of the first housing (210), the second thickness (T2) of the second housing (220), and the third thickness (T3) of the third housing (230) may not be the same but may be different. For example, the second thickness (T2) may be thinner than the first thickness (T1) and the third thickness (T3).

[0271] For example, the electronic device (101) may include cameras (283). For example, the cameras (283) may be disposed within a second housing (220) positioned between the first housing (210) and the third housing (230) in an unfolded state. In a folded state, the back surface of the second housing (220) may be exposed to the outside, so that the cameras (283) may be aligned with openings in the back surface of the second housing (220) to capture light emitted from a subject so that the cameras (283) may be used in the folded state.

[0272] An electronic device (101) according to one embodiment may include a camera deco (2110) that at least partially surrounds cameras (283). The camera deco (2110) may protect the cameras (283) from impact by surrounding the cameras (283). The camera deco (2110) may be at least partially exposed through the back surface of the second housing (220). When the first thickness (T1), the second thickness (T2), and the third thickness (T3) are substantially the same, since the camera deco (2110) is at least partially exposed through the back surface of the second housing (220), the back surface of the foldable housing (201) may not be flat. Due to the thickness of the camera deco (2110) exposed through the back surface of the second housing (220), the foldable housing (201) may not be stably placed on a flat surface and may tilt when in an unfolded state. For example, when the first thickness (T1), the second thickness (T2), and the third thickness (T3) are substantially the same, when the foldable housing (201) is placed on the floor, the protruding camera deco (2110) may touch the floor, and the back surface of the foldable housing (201) may be spaced apart from the floor surface. Since the back surface of the foldable housing (201) does not touch the floor surface, the foldable housing (201) may tilt.

[0273] According to one embodiment, so that the foldable housing (201) in the unfolded state can be stably supported on the floor, the second thickness (T2) can be thinner than the first thickness (T1) and the third thickness (T3). In the unfolded state, so that the foldable housing (201) can be stably supported, the thickness (T5) of the camera deco (2110) exposed on the back of the second housing (220) can correspond to the difference between the first thickness (T1) (or the third thickness (T3)) and the second thickness (T2). In the case of the foldable housing (201) having the above structure, since the camera deco (2110), the back of the first housing (210), and the back of the third housing (230) can touch the floor in the unfolded state, the electronic device (101) can be stably supported.

[0274] An electronic device (101) is provided. The electronic device (101) may include a foldable housing (201) including a first housing (210), a second housing (220), and a third housing (230). The electronic device (101) may include a flexible display (260) supported by the first housing (210), the second housing (220), and the third housing (230). The electronic device (101) may include a first hinge assembly (240) that rotatably connects the first housing (210) and the second housing (220). The electronic device (101) may include a second hinge assembly (250) that rotatably connects the second housing (220) and the third housing (230). The electronic device (101) may include a first hinge cover (271) that surrounds the first hinge assembly (240). The electronic device (101) may include a second hinge cover (272) that surrounds the second hinge assembly (240). In a folded state of the electronic device (101), a step (1510) may be formed between the first housing (210) and the second hinge cover (272).

[0275] For example, the second width (W2) of the second housing (220) may be shorter than the first width (W1) of the first housing (210) and wider than the third width (W3) of the third housing (230).

[0276] For example, the fourth width (W4) of the first hinge cover (271) may be wider than the fifth width (W5) of the second hinge cover (272).

[0277] For example, the second thickness (T2) of the second housing (220) may be thinner than the first thickness (T1) of the first housing (210) and the third thickness (T3) of the third housing (230).

[0278] For example, the third housing (230) may be positioned between the first housing (210) and the second housing (220) in the folded state of the foldable housing (210). The first hinge cover (271) may be opposite the second hinge cover (272) with the foldable housing (201) interposed therebetween in the folded state. In the folded state, the side surface (231) of the third housing (230) facing the first hinge cover (271) may be spaced apart from an imaginary line (L1) extending from the side surface (211) of the first housing (210) adjacent to the first hinge cover (271) to the side surface (221) of the second housing (220) adjacent to the first hinge cover (271) toward the second hinge cover (272).

[0279] For example, the flexible display (260) may include, in the folded state, a first region (430) disposed on the first housing (210), a second region (440) disposed on the second housing (220), a third region (450) disposed on the third housing (230), a first deformation region (410) that bends between the first region (430) and the second region (440), and a second deformation region (420) that bends between the second region (440) and the third region (450). The first deformation region (410) may include a flat portion (e.g., a first flat portion (411)) perpendicular to the first housing (210) and the second housing (220), a first curved portion (412) bent from a first end (412a) of the flat portion (513) to a second end (412b) of the first region (430), and a second curved portion (413) bent from a third end (413a) of the flat portion (411) opposite to the first end (412a) to a fourth end (413b) of the second region (440).

[0280] An electronic device (101) is provided. The electronic device (101) may include a foldable housing (201) including a first housing (210) having a first width (W1), a second housing (220) having a second width (W2) shorter than the first width (W1), and a third housing (230) having a third width (W3) shorter than the second width (W2). The electronic device (101) may include a flexible display (260) supported by the first housing (210), the second housing (220), and the third housing (230). The electronic device (101) may include a first hinge assembly (240) that rotatably connects the first housing (210) and the second housing (220). The electronic device (101) may include a second hinge assembly (250) that rotatably connects the second housing (220) and the third housing (230). The electronic device (101) may include a first hinge cover (271) having a fourth width (W4) and surrounding the first hinge assembly (240). The electronic device (101) may include a second hinge cover (272) having a fifth width (W5) shorter than the fourth width (W4) and surrounding the second hinge assembly (250).

[0281] For example, the second thickness (T2) of the second housing (220) may be thinner than the first thickness (T1) of the first housing (210) and the third thickness (T3) of the third housing (230).

[0282] For example, the electronic device (101) may further include a camera deco (2110) that at least partially surrounds a camera disposed within the second housing (220) and at least partially protrudes from a rear surface of the second housing (220). The thickness of the camera deco (2110) protruding toward the rear surface may correspond to a difference between the third thickness (T3) and the second thickness (T2).

[0283] For example, the third housing (230) may be positioned between the first housing (210) and the second housing (220) in the folded state of the electronic device (101). The first hinge cover (271) may be opposite the second hinge cover (272) such that, in the folded state, at least a portion of the foldable housing (201) is positioned between the first hinge cover (271) and the second hinge cover (272). Within the folded state, the side of the third housing (230) facing the first hinge cover (271) (e.g., the fifth side (231)) may be spaced apart from a first imaginary line (L1) extending from the side of the first housing (210) adjacent to the first hinge cover (271) to the side of the second housing (220) adjacent to the first hinge cover (271) (e.g., the third side (221)) toward the second hinge cover (272).

[0284] For example, the folded state may include a first folded state in which the third housing (230) is folded with respect to the second housing (220), and a second folded state in which the first housing (210) is folded in the first folded state. The first folded state and the second folded state may be a state in which the flexible display (260) is folded inward.

[0285] For example, a second virtual straight line (L2) extending from a side surface (e.g., a fourth side surface (222)) of the second housing (220) adjacent to the second hinge cover (272) to a side surface (e.g., a sixth side surface (232)) of the third housing (230) adjacent to the second hinge cover (272) may be spaced apart from a third virtual straight line (L3) extending from an outer surface (272a) of the second hinge cover (272) by 1.5 mm to 2.0 mm.

[0286] For example, within the folded state, another side (e.g., second side (212)) of the first housing (210) opposite to the side (211) of the first housing (210) adjacent to the first hinge cover (271) may be substantially aligned with an outer surface (272a) of the second hinge cover (272).

[0287] For example, the flexible display (260) may include, in the folded state, a first region (430) disposed on the first housing (210), a second region (440) disposed on the second housing (220), a third region (450) disposed on the third housing (230), a first deformation region (410) that bends between the first region (430) and the second region (440), and a second deformation region (420) that bends between the second region (440) and the third region (450).

[0288] The first deformation region (410) may include a flat portion (e.g., a first flat portion (411)) substantially perpendicular to the first housing (210) and the second housing (220), a first curved portion (412) bent from a first end (412a) of the flat portion (513) to a second end (412b) of the first region (430), and a second curved portion (413) bent from a third end (413a) of the flat portion (411) opposite to the first end (412a) to a fourth end (413b) of the second region (440).

[0289] For example, within the folded state, the side (231) of the third housing (230) facing the first hinge cover (271) may be spaced apart from an imaginary line (L4) extending from the second end (511b) to the fourth end (512b) toward the second hinge cover (272).

[0290] For example, within the folded state, a portion of the side surface (231) of the third housing (230) facing the first hinge cover (271) may be spaced apart from a fourth imaginary line (L4) extending from the second end (511b) to the fourth end (512b) toward the first hinge cover (271).

[0291] For example, the curvature of the side surface (231) of the third housing (230) may be greater than the curvature of the first curved portion (412) and the curvature of the second curved portion (413).

[0292] For example, the electronic device (101) may further include at least one key button (281) or at least one fingerprint recognition unit (283) exposed through the other side (212) of the first housing (210) opposite to the one side (211) of the first housing (210) adjacent to the first hinge assembly (240).

[0293] For example, the other side (212) of the first housing (210) may include at least one of a groove (1320) or a protrusion (1120) formed on the other side (212).

[0294] For example, in the folded state of the electronic device (101), a step (1510) may be formed between the first housing (210) and the second hinge cover (272).

[0295] For example, the first hinge cover (271) may protrude from a side surface (211) of the first housing (210) adjacent to the first hinge cover (271) and a side surface (221) of the second housing (220) adjacent to the first hinge cover (271) in a folded state of the electronic device (101).

[0296] For example, the second cover (272) may protrude from a side surface (222) of the second housing (220) adjacent to the second cover (272) and a side surface (232) of the third housing (230) adjacent to the second hinge cover (272) in the folded state of the electronic device (101).

[0297] For example, the side (231) of the third housing (230) may be at least partially rounded.

[0298] For example, the electronic device (101) may include a plurality of conductive portions (910) formed along at least a portion of a side surface of the first housing (210) and used for communication with an external electronic device. The electronic device (101) may include an antenna module (1620) disposed close to another side surface of the first housing (210) opposite to the side surface of the first housing (210) adjacent to the first hinge assembly (240). The first housing (210) may protrude from a side surface (222) of the second housing (220) adjacent to the second hinge cover (272) and a side surface (232) of the third housing (230) within a folded state of the electronic device (101).

[0299] For example, the thickness of the foldable housing (201) may be thicker than the thickness of the first hinge cover (271) and the thickness of the second hinge cover (272).

[0300] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, electronic devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0301] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "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" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0302] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0303] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (120) (e.g., the processor (120)) of a machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0304] According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as a memory (130) of a manufacturer's server, an application store's server, or a relay server.

[0305] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In electronic devices, A foldable housing comprising a first housing having a first width, a second housing having a second width shorter than the first width, and a third housing having a third width shorter than the second width; A flexible display supported by the first housing, the second housing and the third housing; A first hinge assembly rotatably connecting the first housing and the second housing; A second hinge assembly rotatably connecting the second housing and the third housing; A first hinge cover having a fourth width and surrounding the first hinge assembly; and A second hinge cover having a fifth width shorter than the fourth width and surrounding the second hinge assembly, Electronic devices.

2. In paragraph 1, The second thickness of the second housing is: Thinner than the first thickness of the first housing and the third thickness of the third housing, Electronic devices.

3. In paragraph 2, Further comprising a camera decoration that at least partially encloses a camera disposed within the second housing and at least partially protrudes from a back surface of the second housing; The thickness of the camera decoration protruding from the back surface is Corresponding to the difference between the third thickness and the second thickness, Electronic devices.

4. In any one of paragraphs 1 to 3, The above third housing, In the folded state of the electronic device, positioned between the first housing and the second housing, The above first hinge cover, In the folded state, at least a portion of the foldable housing is positioned between the first hinge cover and the second hinge cover, opposite the second hinge cover, Within the folded state, the side of the third housing facing the first hinge cover is, From a side of the first housing adjacent to the first hinge cover, a first imaginary line extending toward the side of the second housing adjacent to the first hinge cover, spaced apart from the second hinge cover, Electronic devices.

5. In paragraph 4, The above folded state is, For the second housing, the third housing includes a first folded state in which the third housing is folded, and a second folded state in which the first housing is folded in the first folded state. The above first folding state and the above second folding state are, In the above flexible display, which is in a folded state, Electronic devices.

6. In any one of paragraphs 1 to 5, A second imaginary straight line extending from the side of the second housing adjacent to the second hinge cover to the side of the third housing adjacent to the second hinge cover, From a third imaginary straight line extending from the outer surface of the second hinge cover, spaced apart by 1.5 mm to 2.0 mm, Electronic devices.

7. In any one of paragraphs 1 to 6, Within the folded state of the electronic device, the other side of the first housing opposite the side of the first housing adjacent to the first hinge cover, substantially aligned with the outer surface of the second hinge cover, Electronic devices.

8. In any one of paragraphs 1 to 7, The above flexible display, In the folded state of the electronic device, a first region disposed on the first housing, a second region disposed on the second housing, a third region disposed on the third housing, a first deformation region that bends between the first region and the second region, and a second deformation region that bends between the second region and the third region, The above first deformation region is, A flat portion perpendicular to the first housing and the second housing, a first bent portion bent from the first end of the above flat portion to the second end of the above first region, and Including a second bent portion bent from the third end of the flat portion to the fourth end of the second region, Electronic devices.

9. In paragraph 8, Within the folded state, the side of the third housing facing the first hinge cover is, From an imaginary line extending from the second end to the fourth end, spaced apart toward the second hinge cover, Electronic devices.

10. In paragraph 8, Within the folded state, a portion of the side of the third housing facing the first hinge cover, From the fourth imaginary line extending from the second end to the fourth end, spaced apart toward the first hinge cover, Electronic devices.

11. In paragraph 10, The curvature of the side surface of the third housing is, The curvature of the first curved portion is greater than the curvature of the second curved portion, Electronic devices.

12. In any one of paragraphs 1 to 11, further comprising at least one key button or at least one fingerprint recognition unit exposed through the other side of the first housing opposite to the side of the first housing adjacent to the first hinge assembly; Electronic devices.

13. In paragraph 12, The other side of the above first housing, comprising at least one of a groove or a protrusion formed on the other side; Electronic devices.

14. In paragraph 12, At least one of the above key buttons or the above fingerprint recognition unit, In the folded state of the electronic device, protruding more than the second hinge cover, Electronic devices.

15. In any one of paragraphs 1 to 14, In the folded state of the electronic device, a step is formed on the side of the first housing so as to be adjacent to the second hinge cover. Electronic devices.

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