Foldable electronic device comprising hinge module

Abstract

According to various embodiments of the present disclosure, a foldable electronic device is provided. The foldable electronic device comprises: a first housing and a second housing; and a hinge module for rotatably connecting the first housing and the second housing. The hinge module includes a first part, a second part and a first bracket. The first part is rotatable about a first rotation axis. The second part is rotatable about a second rotation axis parallel to the first rotation axis. The first bracket is fixed to the first housing and is connected to the first part and the second part. The first part and the first bracket are connected to be rotatable about a third rotation axis parallel to the first rotation axis. The second part and the first bracket are connected to be rotatable about a fourth rotation axis parallel to the second rotation axis by means of sliding between the second part and the first bracket. One from among the second part and the first bracket includes a first guide rail, and the other includes a first slider slidably disposed on the first guide rail. The first guide rail includes a relatively thick first rail end portion on the basis of the fourth rotation axis. The first slider includes a relatively thick first slider end portion on the basis of the fourth rotational axis. In an unfolded state of the foldable electronic device, the first slider end portion is positioned at the first rail end portion.

Description

Foldable electronic device including a hinge module

[0001] The present disclosure relates to a foldable electronic device comprising a hinge module.

[0002] The foldable electronic device may include a hinge module configured to rotatably connect two housings to each other.

[0003] When an external impact is applied to a foldable electronic device in an unfolded state due to reasons such as a drop, unwanted movement such as the opening of the hinge module may occur, and this may result in damage to the flexible display module.

[0004] Embodiments of the present disclosure provide a foldable electronic device comprising a hinge module for reducing or preventing damage to a flexible display module by reducing or preventing movement such as the opening of the hinge module from external impact.

[0005] The technical problems to be solved in this disclosure are not limited to those mentioned above, and other unmentioned technical problems will be understood by those skilled in the art from the description below.

[0006] According to various embodiments of the present disclosure, a foldable electronic device is provided, wherein the foldable electronic device comprises a first housing and a second housing, and a hinge module rotatably connecting the first housing and the second housing. The hinge module comprises a first part, a second part, and a first bracket. The first part is configured to be rotatable about a first rotation axis. The second part is configured to be rotatable about a second rotation axis parallel to the first rotation axis. The first bracket is fixed to the first housing and connected to the first part and the second part. The first part and the first bracket are rotatably connected about a third rotation axis parallel to the first rotation axis. The second part and the first bracket are rotatably connected about a fourth rotation axis parallel to the second rotation axis through sliding between the second part and the first bracket. One of the second part and the first bracket includes a first guide rail, and the other includes a first slider slidably positioned on the first guide rail. The first guide rail includes a first rail end that is relatively thick with respect to a fourth rotation axis. The first slider includes a first slider end that is relatively thick with respect to the fourth rotation axis. In the unfolded state of the foldable electronic device, the first slider end is configured to be positioned on the first rail end.

[0007] According to various embodiments of the present disclosure, a foldable electronic device is provided, wherein the foldable electronic device comprises a first housing, a second housing, a flexible display module disposed in the first housing and the second housing, and a hinge module rotatably connecting the first housing and the second housing. The hinge module comprises a first part, a second part, and a bracket. The first part is configured to be rotatable about a first rotation axis. The second part is configured to be rotatable about a second rotation axis parallel to the first rotation axis. The bracket is fixed to the first housing and connected to the first part and the second part. The first part and the bracket are rotatably connected about a third rotation axis parallel to the first rotation axis. The second part and the bracket are rotatably connected about a fourth rotation axis parallel to the second rotation axis through sliding between the second part and the bracket. The second part includes a rail groove, and the bracket includes a rail portion slidably positioned in the rail groove of the second part. A first end of the rail groove of the second part located relatively close to the back surface of the flexible display module, and a second end of the rail part of the bracket located relatively close to the back surface of the flexible display module are formed to be relatively thick with respect to a fourth rotation axis. In the unfolded state of the foldable electronic device, the second end of the rail part of the bracket is configured to be located at the first end of the rail groove of the second part.

[0008] A foldable electronic device with a hinge module according to various embodiments of the present disclosure can reduce or prevent the opening of the hinge module from external impact in the unfolded state, thereby reducing or preventing damage to the flexible display module.

[0009] Other effects that can be obtained or predicted by the various embodiments of the present disclosure may be disclosed directly or implicitly in the detailed description of the embodiments of the present disclosure.

[0010] The above and other aspects, features, and advantages of specific embodiments of the present disclosure will become more apparent from the following detailed description taken together with the accompanying drawings.

[0011] FIG. 1 is a drawing showing the appearance of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0012] FIG. 2 is a drawing showing the appearance of a folded electronic device according to various embodiments of the present disclosure.

[0013] FIG. 3 is a cross-sectional view of a foldable electronic device in an unfolded state, cut along line D-D' of FIG. 1, according to various embodiments of the present disclosure.

[0014] FIG. 4 is a cross-sectional view of a portion of a foldable electronic device in an unfolded state, cut along line D-D' of FIG. 1, according to various embodiments of the present disclosure.

[0015] FIG. 5 is a cross-sectional view of a part of a folded electronic device in relation to FIG. 4, according to various embodiments of the present disclosure.

[0016] FIG. 6 is an exploded perspective view of a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0017] FIG. 7 is a perspective view of a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0018] FIG. 8 is a drawing showing a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0019] FIG. 9 is a drawing showing a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0020] FIG. 10 is a perspective view of a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0021] FIG. 11 is a perspective view of a part of a folded electronic device in a folded state according to various embodiments of the present disclosure.

[0022] FIG. 12 is a cross-sectional view of a portion of a foldable electronic device in an unfolded state, cut along line E-E' of FIG. 9, according to various embodiments of the present disclosure.

[0023] FIG. 13 is a cross-sectional view of a part of a folded electronic device in relation to FIG. 12, according to various embodiments of the present disclosure.

[0024] FIG. 14 is a cross-sectional view of a portion of a foldable electronic device in an unfolded state, cut along line F-F' of FIG. 9, according to various embodiments of the present disclosure.

[0025] FIG. 15 is a cross-sectional view of a part of a folded electronic device in relation to FIG. 14, according to various embodiments of the present disclosure.

[0026] FIG. 16 is a cross-sectional view of a portion of a foldable electronic device in an unfolded state, cut along line G-G' of FIG. 9, according to various embodiments of the present disclosure.

[0027] FIG. 17 is a cross-sectional view of a part of a folded electronic device in relation to FIG. 16, according to various embodiments of the present disclosure.

[0028] FIG. 18 is a cross-sectional view of a portion of a foldable electronic device in an unfolded state, cut along line H-H' of FIG. 9, according to various embodiments of the present disclosure.

[0029] FIG. 19 is a cross-sectional view of a part of a folded electronic device in relation to FIG. 18, according to various embodiments of the present disclosure.

[0030] FIG. 20 is a perspective view of a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0031] FIG. 21 is a drawing showing a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0032] FIG. 22 is a drawing showing a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0033] FIG. 23 is a drawing showing a part of a folded electronic device in a folded state according to various embodiments of the present disclosure.

[0034] FIG. 24 is a perspective view of a second part according to various embodiments of the present disclosure.

[0035] FIG. 25 is a perspective view of a second part bracket according to various embodiments of the present disclosure.

[0036] FIG. 26 is a perspective view showing the connection of a second part and a second part bracket according to various embodiments of the present disclosure.

[0037] FIG. 27 is a drawing showing a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0038] FIG. 28 is a perspective view of a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0039] FIG. 29 is a drawing showing a part of a foldable electronic device according to various embodiments of the present disclosure.

[0040] FIG. 30 is a perspective view of a part of a foldable electronic device according to various embodiments of the present disclosure.

[0041] FIG. 31 is a perspective view of a part of a foldable electronic device according to various embodiments of the present disclosure.

[0042] FIG. 32 is a perspective view of a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0043] FIG. 33 is a drawing showing a part of a foldable electronic device according to various embodiments of the present disclosure.

[0044] FIG. 34 is a drawing showing a part of a foldable electronic device in an unfolded state according to various embodiments of the present disclosure.

[0045] Various embodiments of the present disclosure are described in more detail below. The following description is provided to facilitate a comprehensive understanding of the various embodiments of the present disclosure as defined by the claims and their equivalents, with reference to the accompanying drawings. While various specific details are included to aid understanding, they should be considered merely illustrative. Accordingly, those skilled in the art will recognize that various changes and modifications to the various embodiments described in the present disclosure may be made without departing from the scope and spirit of the present disclosure. Furthermore, descriptions of known functions and configurations may be omitted for clarity and brevity.

[0046] The terms and words used in the following description and claims are not limited to their bibliographic meanings and are used merely to enable the inventor to understand the present disclosure clearly and consistently. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustrative purposes only and is not intended to limit the present disclosure as defined by the appended claims and their equivalents.

[0047] The various embodiments of the present disclosure and the terms used therein are not limited to the specific embodiments of the technical features described in the present disclosure. 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 said items unless the relevant context clearly indicates otherwise. In the present disclosure, each of phrases such as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C” may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as “first,” “second,” or “first” or “second” may be used simply to distinguish a corresponding component from other corresponding components and do not limit the corresponding components in any other aspect (e.g., importance or order). Where one element (e.g., a first component) is referred to as "coupled" or "connected" to another element (e.g., a second component), with or without the terms "functionally" or "communicationly," said element may be connected to said other element directly or indirectly (e.g., through a third component).

[0048] In the present disclosure, where the term “substantially” is used to limit or define a structural part, an expression including the term “substantially” is understood or interpreted as a technical feature produced within the technical tolerance of the method used to manufacture it.

[0049] In this disclosure, the expression “comprising” means that a specific effect or result can be obtained within a specific tolerance, and that a person skilled in the art knows how to obtain such tolerance. It should be understood that terms such as “comprising” or “having” are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this disclosure, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0050] In the present disclosure, "placed on XX" may be understood as being placed adjacent to or in substantial contact with XX, coupled to XX, or included in XX.

[0051] In the present disclosure, the phrase “located on XX (on)” may be understood as being located adjacent to or in substantial contact with XX, being coupled to XX, or being included in XX.

[0052] In the present disclosure, “ZZ between XX and YY” may be understood as ZZ being positioned in substantial contact with XX or YY or ZZ being directly coupled to XX or YY. “ZZ between XX and YY” may be understood as ZZ being positioned between XX and YY with at least one other component between XX and ZZ and / or at least one component between YY and ZZ in between. “ZZ between XX and YY” may be understood as at least one other component between XX and ZZ connecting XX and ZZ and / or at least one other component between YY and ZZ connecting YY and ZZ.

[0053] In this disclosure, unless otherwise noted, "conductivity" may be understood as "electrical conductivity" and "nonconductivity" may be understood as "electrical insulation." In context, or where thermal properties are mentioned, "conductivity" may be understood as "thermal conductivity."

[0054] In this disclosure, terms such as "above," "upper," "upper," "lower," "lower," or "lower" may be used to describe the relationships between components illustrated in the drawings. These terms are relative concepts and may be described based on the directions indicated in the drawings.

[0055] In the present disclosure, the term “and / or” may be understood to include all of one or more combinations that the associated components may define.

[0056] In the drawings of the present disclosure, the thickness, proportion, and / or dimensions of the components are for the purpose of effectively illustrating the technical content and are not limited to the thickness, proportion, and / or dimensions depicted.

[0057] In the drawings of the present disclosure, at least one structural component may be depicted transparently or translucently to aid in understanding the structural relationships between the components.

[0058] The "comparative examples" mentioned in this disclosure are provided merely for comparison with the embodiments of this disclosure and do not constitute prior art to the various embodiments of this disclosure.

[0059] FIG. 1 is a drawing showing the appearance of a foldable electronic device (1) in an unfolded state (also called an unfolding state or a flat state) according to various embodiments of the present disclosure.

[0060] FIG. 2 is a drawing showing the appearance of a foldable electronic device (1) in a folded state (also called a folding state) according to various embodiments of the present disclosure.

[0061] FIG. 3 is a cross-sectional view of a foldable electronic device (1) in an unfolded state, cut along line D-D' of FIG. 1 according to various embodiments of the present disclosure.

[0062] It is understood in this disclosure that any combination of features and / or embodiments disclosed in connection with FIGS. 1, 2, and 3 is conceived and included. Any combination of features described below in connection with FIGS. 1, 2, and 3 may be considered to be included in this disclosure as specific examples.

[0063] Referring to FIGS. 1, 2, and 3, the foldable electronic device (1) may include a foldable housing (10) and a first display module (15).

[0064] According to various embodiments, the unfolded state and the folded state of the foldable electronic device (1) may be provided (or formed) by the foldable housing (10). The "unfolded state of the foldable electronic device (1)" and the "unfolded state of the foldable housing (10)" may be understood as the same. The "folded state of the foldable electronic device (1)" and the "folded state of the foldable housing (10)" may be understood as the same.

[0065] According to various embodiments, the foldable housing (10) may include a first housing (also referred to as a first housing part or a first housing structure) (11) and a second housing (also referred to as a second housing part or a second housing structure) (12). The foldable housing (10) may include a hinge cover (also referred to as a hinge housing) (13). The foldable housing (10) may include a hinge module (also referred to as a hinge part, a hinge structure, or a hinge assembly) (14). The first housing (11) and the second housing (12) may be rotatably connected through the hinge module (14). The hinge module (14) may be placed on the hinge cover (13).

[0066] According to various embodiments, a first display module (also called a first display) (15) may be placed in a foldable housing (10). The first display module (15) may include, for example, a flexible display module (also called a flexible display) or a foldable display module (also called a foldable display) that can be deformed in response to a transition between an unfolded state and a folded state of a foldable electronic device (1).

[0067] According to various embodiments, the first display module (15) may include a display area (150). The display area (150) may include an active area or a screen area capable of displaying an image based on an electrical signal. The display area (150) may include a first display area (151) disposed in the first housing (11), a second display area (152) disposed in the second housing (12), and a third display area (153) disposed in the hinge module (14). The third display area (153) may extend the first display area (151) and the second display area (152). The shape of the first display area (151) may be maintained by the support of the first housing (11). The first display area (151) may be provided (or formed) substantially flat by being supported, for example, by the first housing (11). The shape of the second display area (152) may be maintained by being supported by the second housing (12). The second display area (152) may be provided (or formed) substantially flat by being supported, for example, by the second housing (12). The third display area (153) may be positioned corresponding to the hinge module (14). When the foldable electronic device (1) is switched between an unfolded state and a folded state, the third display area (153) may be deformed corresponding to the relative position between the first display area (151) and the second display area (152). In the unfolded state of the foldable electronic device (1), the third display area (153) may be positioned substantially flat. In the folded state of the foldable electronic device (1), the third display area (153) may be arranged in a bent shape. The unfolded state of the foldable electronic device (1) may be understood as a state in which the third display area (153) is arranged flat.The folded state of the foldable electronic device (1) can be understood as a state in which the third display area (153) is arranged in a bent form.

[0068] According to various embodiments, in the unfolded state of the foldable electronic device (1), the first display area (151) and the second display area (152) may form an angle of approximately 180 degrees, and the display area (150) of the first display module (15) may be provided (or arranged) in a substantially flat form. In the unfolded state of the foldable electronic device (1), due to the relative position between the first display area (151) arranged in the first housing (11) and the second display area (152) arranged in the second housing (12), the third display area (153) may be arranged substantially flat. In the unfolded state of the foldable electronic device (1), the third display area (153) can be pulled from both sides by the first display area (151) and the second display area (152), and the pulling force can be provided to reduce damage to the third display area (153) while laying the third display area (153) flat. The third display area (153) can be provided (or formed) with an extended width that can be laid flat while reducing stress by being pulled by the first display area (151) and the second display area (152) in the unfolded state of the foldable electronic device (1).

[0069] According to various embodiments, in the unfolded state of the foldable electronic device (1), the hinge module (14) may be configured to substantially flatly support the third display area (153) of the first display module (15). The hinge module (14) may support the third display area (153) so that, for example, in the unfolded state of the foldable electronic device (1), the third display area (153) can be placed flat without sagging or with reduced sagging, thereby reducing crease.

[0070] According to various embodiments, when an external force (e.g., external pressure such as touch input using a user's finger or touch input using an electronic pen) is applied to the third display area (153) in the unfolded state of the foldable electronic device (1), the hinge module (14) may be configured to support the third display area (153) so that the third display area (153) can be kept flat by reducing the sagging phenomenon of the third display area (153).

[0071] According to various embodiments, when an external impact is applied due to reasons such as a fall while the foldable electronic device (1) is in an unfolded state, the hinge module (14) may be configured to reduce or absorb the external impact so as to reduce the impact of the external impact on the third display area (153).

[0072] According to various embodiments, the display area (150) of the first display module (15) may substantially provide (or form) the front of the exterior of the foldable electronic device (1). The front of the foldable electronic device (1) may include a first front area provided (or formed) by the first display area (151), a second front area provided (or formed) by the second display area (152), and a third front area provided (or formed) by the third display area (153). The illustrated coordinate axes of the foldable electronic device (1) are illustrated, for example, with respect to the first housing (11), and the direction parallel to the positive direction of the z-coordinate axis may be defined or interpreted as the direction toward which the substantially flat first front area faces. For example, the first front area provided (or formed) by the first display area (151) may be substantially parallel to the xy plane. In the unfolded state of the foldable electronic device (1), the front surface of the foldable electronic device (1) can be provided (or formed) as substantially flat.

[0073] According to various embodiments, the foldable electronic device (1) may be implemented in an infolding manner in which the display area (150) of the first display module (15) (or the front of the foldable electronic device (1) where the display area (150) is visually visible) can be folded inward. FIG. 2 shows a fully folded state of the foldable electronic device (1) arranged so that the first housing (11) and the second housing (12) are no longer close to each other. In the fully folded state of the foldable electronic device (1), the first display area (151) and the second display area (152) (or, the first front area and the second front area) may face each other. For example, in a fully folded state of the foldable electronic device (1), the angle between the first housing (11) and the second housing (12) (or the angle between the first display area (151) and the second display area (152), or the angle between the first front area and the second front area) may be approximately 0 degrees to approximately 10 degrees. In a fully folded state of the foldable electronic device (1), the display area (150) of the first display module (15) may not be substantially visible. Although not separately illustrated, the foldable electronic device (1) may be positioned in an intermediate state between the unfolded state and the fully folded state. For example, in an intermediate state of the foldable electronic device (1) where the angle between the first housing (11) and the second housing (12) is greater than a certain angle, the foldable electronic device (1) may be configured to provide a user environment in which a user can utilize the display area (150). The “folded state of the foldable electronic device (1)” of the present disclosure can be understood as a fully folded state.

[0074] According to various embodiments, when viewing the unfolded state of the foldable electronic device (1), the display area (150) of the first display module (15) may be provided (or formed) in a symmetrical shape with respect to the center line (A) of the foldable electronic device (1). The center line (A) of the foldable electronic device (1) may correspond to the middle of the width extending from the first boundary between the first display area (151) and the third display area (153) to the second boundary between the second display area (151) and the third display area (153) when viewing the unfolded state of the foldable electronic device (1). The positive and negative directions of the x-axis may be substantially parallel to the center line (A), for example, and the positive and negative directions of the y-axis may be substantially perpendicular to the center line (A). In various embodiments, the center line (A) of the foldable electronic device (1) may be composed of the foldable housing (10) or the "folding axis" of the foldable electronic device (1). The folding axis may be substantially provided (or formed) by a hinge module (14). A third display area (153) arranged in a bent form in the folded state of the foldable electronic device (1) may be provided (or formed) in a substantially symmetrical form with respect to the center line (A) of the foldable electronic device (1).

[0075] According to various embodiments, the first housing (11) may include a first frame (also referred to as a first frame structure or a first framework) (111), and a first back cover (also referred to as a first rear cover, a first rear plate, or a first back plate) (112) disposed on (or combined with) the first frame (111). The combination of the first frame (111) and the first back cover (112) may provide (or form) a first rear area (also referred to as a first rear appearance) and a first side area (also referred to as a first side appearance) of the appearance of the foldable electronic device (1). The first frame (111) may provide (or form) at least a portion of the first side area of ​​the foldable electronic device (1). The first back cover (112) may provide (or form) at least a portion of the first rear area of ​​the foldable electronic device (1). The first rear area may face in the opposite direction to the first front area of ​​the foldable electronic device (1) provided (or formed) by the first display area (151) of the first display module (15).

[0076] According to various embodiments, the first frame (111) may include a first side member (also referred to as a first border member, first side member, first side structure, or first side bezel structure) (1112). The first side member (1112) may surround at least part of the space between the first display area (151) and the first back cover (112) and may provide (or form) at least part of the first side area of ​​the exterior of the foldable electronic device (1).

[0077] According to various embodiments, the first frame (111) may include a first support plate (also referred to as a first support member, first support structure, first support portion, or first bracket) (1111) that extends from or is connected to the first side member (1112). The first support plate (1111) may be a structural element located inside the foldable electronic device (1) corresponding to the first housing (11).

[0078] According to various embodiments, the first frame (111) may be provided (or formed) as an integrated or single structure (e.g., a single continuous structure or a complete structure) comprising a first support plate (1111) and a first side member (1112).

[0079] According to various embodiments, the first frame (111) may be provided as a combination of a conductor (or metal body) (not separately shown) comprising one or more conductive parts and a nonconductor (or non-metal body) (not separately shown) comprising one or more nonconductive parts.

[0080] According to various embodiments, the first support plate (1111) may be positioned at least partially between the first display area (151) and the first back cover (112). The first display area (151) may be placed on the first support plate (1111), and the first support plate (1111) may support the first display area (151).

[0081] According to various embodiments, a plurality of electrical components, such as at least one first printed circuit board (PCB) and a first battery, may be partially disposed or coupled to the first support plate (1111) of the first frame (111) between the first frame (111) and the first back cover (112).

[0082] According to various embodiments, electrical components (or electronic components), or various members associated with electrical components, may be placed or coupled to the first frame (111) or the first support plate (1111), or supported by the first frame (111) or the first support plate (1111). The first support plate (1111) may include, for example, a first support surface (1111A) and a third support surface (1111B). The first support surface (1111A) may substantially face the first display area (151) of the first display module (15). The third support surface (1111B) may be located on the opposite side from the first support surface (1111A). The third support surface (1111B) may substantially face the first back cover (112). Electrical components (or electronic parts), or various members associated with electrical components, may be placed or coupled to the first support surface (1111A) and / or the third support surface (1111B), or supported by the first support surface (1111A) and / or the third support surface (1111B). The first support surface (1111A) may include a first front mounting portion for stably placing or supporting one or more components, such as the first display area (151) of the first display module (15). The first front mounting portion may be formed, for example, by a combination of surface areas of different heights. The third support surface (1111B) may include a first rear mounting portion for stably placing or supporting one or more components, such as the first PCB and / or the first battery. The first rear mounting portion may be formed, for example, by a combination of surface areas of different heights.

[0083] According to various embodiments, the second housing (12) may include a second frame (also referred to as a second frame structure or a second framework) (121), and / or a second back cover (also referred to as a second rear cover, a second rear plate, or a second back plate) (122) disposed on the second frame (121). A combination of the second frame (121) and the second back cover (122) may provide (or form) a second rear area (also referred to as a second rear appearance) and a second side area (also referred to as a second side appearance) among the appearances of the foldable electronic device (1). The second frame (121) may provide (or form) at least a portion of the second side area of ​​the foldable electronic device (1). The second back cover (122) may provide (or form) at least a portion of the second rear area of ​​the foldable electronic device (1). The second rear region may face in the opposite direction to the second front region of the foldable electronic device (1) provided (or formed) by the second display region (152).

[0084] According to various embodiments, the second frame (121) may include a second side member (also referred to as a second border member, second side member, second side structure, or second side bezel structure) (1212). The second side member (1212) may surround at least part of the space between the second display area (152) and the second back cover (122) and may provide (or form) at least part of the second side area of ​​the exterior of the foldable electronic device (1).

[0085] According to various embodiments, the second frame (121) may include a second support plate (also referred to as a second support member, second support structure, second support member, or second bracket) (1211) that extends from or is connected to the second side member (1212). The second support plate (1211) may be a structural element located inside the foldable electronic device (1) corresponding to the second housing (12).

[0086] According to various embodiments, the second frame (121) may be provided as an integral or single structure (e.g., a single continuous structure or a complete structure) comprising a second support plate (1211) and a second side member (1212).

[0087] According to various embodiments, the second frame (121) may be provided as a combination of a conductor (or metal body) (not separately shown) comprising one or more conductive parts and a nonconductor (or non-metal body) (not separately shown) comprising one or more nonconductive parts.

[0088] According to various embodiments, the second support plate (1211) may be positioned at least partially between the second display area (152) and the second back cover (122). The second display area (152) may be placed on the second support plate (1211), and the second support plate (1211) may support the second display area (152).

[0089] According to various embodiments, a plurality of electrical components, such as at least one second PCB and a second battery, may be partially disposed or coupled to the second support plate (1211) of the second frame (121) between the second frame (121) and the second back cover (122).

[0090] According to various embodiments, electrical components (or electronic components), or various members associated with electrical components, may be placed or coupled to the second frame (121) or the second support plate (1211), or supported by the second frame (121) or the second support plate (1211). The second support plate (1211) may include, for example, a second support surface (1211A) and a fourth support surface (1211B). The second support surface (1211A) may substantially face the second display area (152) of the first display module (15). The fourth support surface (1211B) may be located on the opposite side from the second support surface (1211A). The fourth support surface (1211B) may substantially face the second back cover (122). Electrical components (or electronic parts), or various members associated with electrical components, may be placed or coupled to the second support surface (1211A) and / or the fourth support surface (1211B), or supported by the second support surface (1211A) and / or the fourth support surface (1211B). The second support surface (1211A) may include a second front mounting portion for stably placing or supporting one or more components, such as a second display area (152) of the first display module (15). The second front mounting portion may be formed, for example, by a combination of surface areas of different heights. The fourth support surface (1211B) may include a second rear mounting portion for stably placing or supporting one or more components, such as a second PCB and / or a second battery. The second rear mounting portion may be formed, for example, by a combination of surface areas of different heights.

[0091] According to various embodiments, the first side member (1112) of the first frame (111) may include a first side portion (B1), a third side portion (B3), a fifth side portion (B5), and / or a seventh side portion (B7). The first side portion (B1) may extend in a direction perpendicular to the center line (A) of the foldable electronic device (1) (e.g., a direction parallel to the y-axis). The third side portion (B3) may be spaced apart from the first side portion (B1) in a direction parallel to the center line (A) of the foldable electronic device (1) (e.g., a direction parallel to the x-axis) and may be substantially parallel to the first side portion (B1). The fifth side portion (B5) may extend or connect one end of the first side portion (B1) and one end of the third side portion (B3). The seventh side portion (B7) may extend or connect the other end of the first side portion (B1) and the other end of the third side portion (B3). The fifth side portion (B5) and the seventh side portion (B7) extend in a direction parallel to the center line (A) of the foldable electronic device (1) and may be substantially parallel to each other. The seventh side portion (B7) may be located closer to the center line (A) of the foldable electronic device (1) than the fifth side portion (B5). The first corner where the first side portion (B1) and the fifth side portion (B5) are extended or connected, and / or the second corner where the third side portion (B3) and the fifth side portion (B5) are extended or connected may be provided (or formed) as a smooth curve.

[0092] According to various embodiments, when viewed from above the first back cover (112), the first side portion (B1), the third side portion (B3), the fifth side portion (B5), and the seventh side portion (B7) may surround the first back cover (112). "When viewed from above the first back cover (112)" can be understood as "when viewed in a direction orthogonal to the first back cover (112)." "When viewed from above the first back cover (112)" can be understood, for example, as "when viewed in the positive direction of the z-axis."

[0093] According to various embodiments, the second side member (1212) of the second frame (121) may include a second side portion (B2), a fourth side portion (B4), a sixth side portion (B6), and / or an eighth side portion (B8). The second side portion (B2) may extend in a direction perpendicular to the center line (A) of the foldable electronic device (1). The fourth side portion (B4) may be spaced apart from the second side portion (B2) in a direction parallel to the center line (A) of the foldable electronic device (1) and may be substantially parallel to the second side portion (B2). The sixth side portion (B6) may extend or connect one end of the second side portion (B2) and one end of the fourth side portion (B4). The eighth side portion (B8) may extend or connect the other end of the second side portion (B2) and the other end of the fourth side portion (B4). The sixth side portion (B6) and the eighth side portion (B8) extend in a direction parallel to the center line (A) of the foldable electronic device (1) and may be substantially parallel to each other. The eighth side portion (B8) may be located closer to the center line (A) of the foldable electronic device (1) than the sixth side portion (B6). The third corner, to which the second side portion (B2) and the sixth side portion (B6) are extended or connected, and / or the fourth corner, to which the fourth side portion (B4) and the sixth side portion (B6) are extended or connected, may be provided (or formed) as a smooth curve.

[0094] According to various embodiments, when viewed from above the second back cover (122), the second side portion (B2), the fourth side portion (B4), the sixth side portion (B6), and the eighth side portion (B8) may surround the second back cover (122). "When viewed from above the second back cover (122)" can be understood as "when viewed in a direction orthogonal to the second back cover (122)." "When viewed from above the second back cover (122)" can be understood, for example, as when viewed in the positive direction of the z-axis in the unfolded state of the foldable electronic device (1).

[0095] According to various embodiments, in the folded state of the foldable electronic device (1), the first side member (1112) of the first frame (111) and the second side member (1212) of the second frame (121) may be aligned and overlapped with each other. In the folded state of the foldable electronic device (1), the first side portion (B1) and the second side portion (B2) may be aligned and overlapped with each other. In the folded state of the foldable electronic device (1), the third side portion (B3) and the fourth side portion (B4) may be aligned and overlapped with each other. In the folded state of the foldable electronic device (1), the fifth side portion (B5) and the sixth side portion (B6) may be aligned and overlapped with each other.

[0096] According to various embodiments, the first side portion (B1), the third side portion (B3), and the fifth side portion (B5) may be a one-sided bezel (or first screen bezel) surrounding one side area of ​​the first display module (15) with respect to the center line (A) of the foldable electronic device (1). The second side portion (B2), the fourth side portion (B4), and the sixth side portion (B6) may be a other-sided bezel (or second screen bezel) surrounding the other side area of ​​the first display module (15) with respect to the center line (A) of the foldable electronic device (1). The seventh side portion (B7) and the eighth side portion (B8) may be located on the opposite side of the third display area (153). When viewed from above on the front of the foldable electronic device (1) in the unfolded state (e.g., when viewed in the negative direction of the z-axis), the 7th side portion (B7) and the 8th side portion (B8) may not be visible.

[0097] According to various embodiments, the hinge cover (13) may be connected to the hinge module (14). The hinge cover (13) may cover the hinge module (14) so ​​that the hinge module (14) is not visible from the outside of the foldable electronic device (1). The hinge cover (13) may include a first side wall (also referred to as a first end) (131) and a second side wall (also referred to as a second end) (132). The hinge cover (13) may extend from the first side wall (131) to the second side wall (132) in a direction parallel to the center line (A) of the foldable electronic device (1). The first side wall (131) and the second side wall (132) of the hinge cover (13) may be substantially perpendicular to a direction parallel to the center line (A) of the foldable electronic device (1) and may be spaced apart from each other in a direction parallel to the center line (A) of the foldable electronic device (1). The hinge cover (13) may include a side wall extension (133) between the first side wall (131) and the second side wall (132). The side wall extension (133) may extend or connect the first side wall (131) and the second side wall (132). The first side wall (131) of the hinge cover (13) may be positioned corresponding to the first side portion (B1) of the first frame (111) and the second side portion (B2) of the second frame (121). In the unfolded state of the foldable electronic device (1), the first side wall (131) of the hinge cover (13) may be covered by the first side portion (B1) of the first frame (111) and the second side portion (B2) of the second frame (121). In the folded state of the foldable electronic device (1), the first side wall (131) of the hinge cover (13) may be visually exposed to the outside through the gap between the first side portion (B1) of the first frame (111) and the second side portion (B2) of the second frame (121). The second side wall (132) of the hinge cover (13) may be positioned corresponding to the third side portion (B3) of the first frame (111) and the fourth side portion (B4) of the second frame (121).In the unfolded state of the foldable electronic device (1), the second side wall (132) of the hinge cover (13) may be covered by the third side portion (B3) of the first frame (111) and the fourth side portion (B4) of the second frame (121). In the folded state of the foldable electronic device (1), the second side wall (132) of the hinge cover (13) may be visually exposed to the outside through the gap between the third side portion (B3) of the first frame (111) and the fourth side portion (B4) of the second frame (121). The side wall extension (133) of the hinge cover (13) may be positioned corresponding to the seventh side portion (B7) of the first frame (111) and the eighth side portion (B8) of the second frame (121). The side wall extension (133) of the hinge cover (13) can be visually exposed to the outside through an open gap between the seventh side portion (B7) of the first frame (111) and the eighth side portion (B8) of the second frame (121) in the folded state of the foldable electronic device (1). In the unfolded state of the foldable electronic device (1), the gap between the seventh side portion (B7) of the first frame (111) and the eighth side portion (B8) of the second frame (121) is closed, and the side wall extension (133) of the hinge cover (13) may not be visually exposed to the outside.

[0098] According to various embodiments, the side wall extension (133) of the hinge cover (13) may include a hinge module seating portion configured to stably position and support the hinge module (14). The hinge module seating portion may be provided as a combination of surface areas of different heights. The hinge module seating portion may include, for example, a recess where the hinge module (14) is positioned.

[0099] According to various embodiments, when the foldable electronic device (1) transitions from an unfolded state to a folded state, a gap between the first frame (111) and the second frame (121) may open on the opposite side of the third display area (153) due to a change in the relative position between the first frame (111) and the second frame (121) connected through the hinge module (14), and a change in the state of the hinge module (14) combined with the hinge cover (13). The hinge cover (13) may be visually exposed to the outside through the open gap between the first frame (111) and the second frame (121). The width of the gap between the first frame (111) and the second frame (121) may vary depending on the angle between the first frame (111) and the second frame (121). The hinge cover (13) may be visually exposed to the outside more in the folded state of the foldable electronic device (1) than in the intermediate state of the foldable electronic device (1). In the folded state of the foldable electronic device (1), the hinge cover (13) may be part of the exterior covering the interior of the foldable electronic device (1). In the folded state of the foldable electronic device (1), the side of the foldable electronic device (1) may include a first side area provided by the first side member (1112) of the first frame (111), a second side area provided by the second side member (1212) of the second frame (121), and a third side area provided by the hinge cover (13).

[0100] According to various embodiments, when the foldable electronic device (1) is switched from a folded state to an unfolded state, due to a change in the relative position between the first frame (111) and the second frame (121) connected through the hinge module (14) and a change in the state of the hinge module (14) combined with the hinge cover (13), the gap between the first frame (111) and the second frame (121) on the opposite side of the third display area (153) is closed and the hinge cover (13) may not be visually exposed to the outside.

[0101] According to various embodiments, the foldable electronic device (1) may include a second display module (16) (also referred to as a second display). The second display module (16) may be positioned between the first back cover (112) and the first support plate (1111) of the first frame (111). The second display module (16) may be placed on or coupled to the first back cover (112) and / or the first support plate (1111). The display area (160) of the second display module (16) may be visually visible through the first back cover (112). In various embodiments, the first back cover (112) may include a transparent area (also referred to as a light-transmitting area) corresponding to the display area (160) of the second display module (16), and an opaque area surrounding the transparent area. The display area (160) of the second display module (16) can be visually seen through the transparent area of ​​the first back cover (112). The foldable electronic device (1) can be configured to display an image through the second display module (16) instead of the first display module (15) in the folded state.

[0102] According to various embodiments, the foldable electronic device (1) may include a first camera module (201), a second camera module (202), and / or a third camera module (203). The first camera module (201), the second camera module (202), or the third camera module (203) may include a camera comprising one or more lenses, image sensor(s), and / or an image signal processor (ISP).

[0103] According to various embodiments, a first camera module (201) and a second camera module (202) may be accommodated in a first housing (11) corresponding to a first back cover (112) (or a first rear area of ​​the foldable electronic device (1)). For example, the first back cover (112) may include a first camera hole (or a first light-transmitting area) corresponding to the first camera module (201) and / or a second camera hole (or a second light-transmitting area) corresponding to the second camera module (202). The location or number of camera modules accommodated in the first housing (11) corresponding to the first back cover (112) is not limited to the illustrated examples.

[0104] According to various embodiments, the first camera module (201) or the second camera module (202) may include a wide-angle camera, a telephoto camera, a color camera, a monochrome camera, or an IR camera (e.g., a TOF (time of flight) camera, a structured light camera), but is not limited thereto.

[0105] According to various embodiments, the first camera module (201) or the second camera module (202) may have different attributes (e.g., angle of view) or functions.

[0106] According to various embodiments, the first camera module (201) or the second camera module (202) may provide different angles of view (or lenses with different angles of view). The foldable electronic device (1) may be configured to selectively use the angle of view of the first camera module (201) or the second camera module (202) based on the user's selection regarding the angle of view.

[0107] According to various embodiments, the third camera module (203) may be accommodated in the first housing (11) corresponding to the first front area of ​​the foldable electronic device (1).

[0108] According to various embodiments, the third camera module (203) may be positioned in alignment with an opening provided in the first display module (15) or at least partially inserted into the opening. External light may pass through the opening provided in the first display module (15) and reach the third camera module (203). The opening of the first display module (15) aligned with or overlapping the third camera module (203) may be a through hole. In various embodiments, the opening of the first display module (15) aligned with or overlapping the third camera module (203) may be provided as a notch (not separately shown).

[0109] According to various embodiments, although not otherwise illustrated, the third camera module (203) may overlap the first display area (151) of the first display module (15) when viewed from above the first front area of ​​the foldable electronic device (1) (e.g., when viewed in the negative direction of the z-axis). The third camera module (203) may be located on the back of the first display area (151) or below the first display area (151). When viewed from outside the foldable electronic device (1), the third camera module (203), or the location of the third camera module (203), may not be substantially visually distinguishable (or exposed). The third camera module (203) may include, for example, a hidden display back camera (e.g., an under display camera (UDC)). External light may pass through the first display module (15) and reach the third camera module (203).

[0110] According to various embodiments, the first camera module (201), the second camera module (202), and / or the third camera module (203) may be configured to operate as at least part of the sensor module included in the foldable electronic device (1). For example, the IR camera module may operate as at least part of the sensor module.

[0111] According to various embodiments, the foldable electronic device (1) may include a light-emitting module (204). The light-emitting module (204) may be received in a first housing (11) corresponding to a first back cover (112) (or a first rear region of the foldable electronic device (1)). The first back cover (112) may include a flash hole (or a third light-transmitting region) corresponding to the light-emitting module (204). The light-emitting module (204) may include, for example, an LED or a xenon lamp. The light-emitting module (204) may include a light source for a first camera module (201) and / or a second camera module (202).

[0112] According to various embodiments, the foldable electronic device (1) may include a sensor module (205). The sensor module (205) may be accommodated in a foldable housing (10) corresponding to the front of the foldable electronic device (1), for example. The sensor module (205) may include an optical sensor module. The optical sensor module may include, for example, a proximity sensor module or an ambient light sensor module.

[0113] According to various embodiments, the sensor module (205) may overlap with the first display area (151) of the first display module (15) when viewed from above the first front area of ​​the foldable electronic device (1). The sensor module (205) may be located on the back of the first display area (151) or below the first display area (151). When viewed from the outside of the foldable electronic device (1), the sensor module (207), or the location of the sensor module (207), may not be substantially visually distinguishable (or exposed). External light may pass through the first display module (15) and reach the sensor module (207).

[0114] According to various embodiments, the foldable electronic device (1) may further include various other sensor modules (e.g., biosensor modules) (not separately shown).

[0115] According to various embodiments, the foldable electronic device (1) may include an acoustic input module (not otherwise shown). The acoustic input module may include a microphone (also called a microphone) (not otherwise shown). The microphone may be received in the second housing (12), for example, in correspondence with a microphone hole (MH) included in the sixth side portion (B6) of the second side member (1212). The location or number of the microphone and the microphone hole corresponding to the microphone are not limited to the illustrated examples.

[0116] According to various embodiments, although not otherwise illustrated, the foldable electronic device (1) may include a first acoustic output module and / or a second acoustic output module and / or a third acoustic output module. The first acoustic output module may include a first speaker. The first speaker may be received in a first housing (11), for example, corresponding to a first speaker hole (SH1) included in a fifth side portion (B5) of a first side member (1112). The second acoustic output module may include a second speaker. The second speaker may be received in a second housing (12), for example, corresponding to a second speaker hole (SH2) included in a sixth side portion (B6) of a second side member (1212). The first speaker or the second speaker may be a speaker for multimedia playback or recording playback. The location or number of speakers for multimedia playback or recording playback and speaker holes corresponding to the speakers are not limited to the illustrated examples. The third sound output module may include a third speaker. The third speaker may be accommodated in the first housing (11), for example, corresponding to a third speaker hole (SH3) formed in a non-display area of ​​the first display module (15). The non-display area may surround the display area (150). The third speaker hole (SH3) may be located in a portion of the non-display area adjacent to the fifth side portion (B5). The third speaker may include a call receiver. The location or number of the call receiver and speaker holes corresponding to the call receiver (also referred to as receiver holes) are not limited to the illustrated examples.

[0117] According to various embodiments, the foldable electronic device (1) may include a key input module. The key input module may include a key (also called a side key) (206) and a key signal generator (not separately illustrated). The key (206) may be located in a key hole included in a third side portion (B3) of the first side member (1112). The key signal generator may be configured to generate a key signal in response to a press or touch on the key (206). The location or number of key input modules is not limited to the illustrated examples.

[0118] According to various embodiments, the foldable electronic device (1) may include a first connection terminal (also referred to as a first connector or first interface terminal) (207). The first connection terminal (207) may be received in the second housing (12), for example, corresponding to a first connection terminal hole (e.g., a first connector hole) included in the sixth side portion (B6) of the second side member (1212). The foldable electronic device (1) may transmit and / or receive power and / or data with an external electronic device electrically connected to the first connection terminal (207). The first connection terminal (207) may include, for example, a USB connector or an HDMI connector. The location of the first connection terminal (207) and the first connection terminal hole corresponding to the first connection terminal (207) is not limited to the illustrated examples.

[0119] According to various embodiments, the foldable electronic device (1) may include a second connection terminal (also referred to as a second connector or second interface terminal) (208). The second connection terminal (208) may be received in the first housing (11), for example, in correspondence with a second connection terminal hole (e.g., a second connector hole) included in the second side portion (B2) of the first side member (1112). An external storage medium, such as an SD (secure digital memory) card, a SIM card, or a USIM (universal SIM) card, may be connected to the second connection terminal (208). The location of the second connection terminal (208) and the second connection terminal hole corresponding to the second connection terminal (208) is not limited to the illustrated example.

[0120] The foldable electronic device (1) may further include various components depending on the form provided. These components cannot all be listed as they vary according to the convergence trend of the foldable electronic device (1), but components equivalent to the components mentioned above may be additionally included in the foldable electronic device (1). In various embodiments, specific components from the above-mentioned components may be excluded or replaced with other components depending on the form provided.

[0121] FIG. 4 is a cross-sectional view of a portion of a foldable electronic device (1) in an unfolded state, cut along line D-D' of FIG. 1, according to various embodiments of the present disclosure.

[0122] FIG. 5 is a cross-sectional view of a part of a folded electronic device (1) in relation to FIG. 4, according to various embodiments of the present disclosure.

[0123] It is understood in this disclosure that any combination of features and / or embodiments disclosed in connection with FIGS. 4 and 5 is conceived and included. Any combination of features described below in connection with FIGS. 4 and 5 may be considered to be included in this disclosure as specific examples.

[0124] Referring to FIGS. 4 and 5, the foldable electronic device (1) may include a first frame (111) and a second frame (121). The foldable electronic device (1) may include a first back cover (112) and a second back cover (122). The foldable electronic device (1) may include a first display module (15). The foldable electronic device (1) may include a second display module (16). The foldable electronic device (1) may include a hinge cover (13). The foldable electronic device (1) may include a first plate (also called a first wing plate or first hinge plate) (31) and a second plate (also called a second wing plate or second hinge plate) (32). The foldable electronic device (1) may include a first foreign substance prevention member (41) and a second foreign substance prevention member (42). Descriptions of some components identical to those in the preceding embodiment may not be repeated.

[0125] According to various embodiments, a first display area (151) of a first display module (15) may be placed on a first support plate (1111) of a first frame (111), and a second display area (152) of a first display module (15) may be placed on a second support plate (1211) of a second frame (121). For example, through an adhesive material (or adhesive material), the first display area (151) of the first display module (15) may be bonded to the first support plate (1111), and the first display area (151) of the first display module (15) may be bonded to the second support plate (1211). The adhesive material (or adhesive material) may include, for example, a heat-reactive adhesive material (or heat-reactive adhesive material), a photoreactive adhesive material (or photoreactive adhesive material), a general adhesive (or general adhesive), and / or double-sided tape, but is not limited thereto.

[0126] According to various embodiments, the second display module (16) may be positioned between the first back cover (112) and the first support plate (1111) of the first frame (111). The second display module (16) may be placed on or coupled to the first back cover (112) and / or the first support plate (1111).

[0127] According to various embodiments, the hinge cover (13) may be coupled with the hinge module (14) (see FIG. 1 and 2). The hinge cover (13) may be connected to the first support plate (1111) of the first frame (111) and the second support plate (1211) of the second frame (121) through the hinge module (14) (see FIG. 1 and 2). In the transition between the unfolded state and the folded state of the foldable electronic device (1), when viewed in a direction parallel to the center line (A) (see FIG. 1) of the foldable electronic device (1), the first frame (111) and the second frame (121) connected through the hinge module (14) (see FIG. 1 and 2) may be rotated in different directions with respect to the hinge module (14) (see FIG. 1 and 2). The hinge cover (13) can be covered by the first frame (111) and the second frame (121) in the unfolded state of the foldable electronic device (1). The hinge cover (13) can be visually exposed to the outside through the space between the first frame (111) and the second frame (121) in the folded state of the foldable electronic device (1).

[0128] According to various embodiments, the hinge cover (13) can be understood as a component included in the hinge module (14) (see FIG. 1 and 2).

[0129] According to various embodiments, the first plate (31) and the second plate (32) may be combined with the hinge module (14) (see FIG. 1 and 2). The first plate (31) and the second plate (32) may be operatively connected to the hinge module (14) (see FIG. 1 and 2). The first plate (31) may be positioned corresponding to the first frame (111), and the second plate (32) may be positioned corresponding to the second frame (121) of the second housing (12). The first plate (31) and the second plate (32) may each be positioned on both sides with respect to the center line (A) (see FIG. 1) of the foldable electronic device (1). The first plate (31) and the second plate (32) may be shaped such that the first width in a direction parallel to the center line (A) (see FIG. 1) of the foldable electronic device (1) is relatively larger than the second width in a direction perpendicular to the said direction.

[0130] According to various embodiments, the first plate (31) and the second plate (32) can be understood as components included in the hinge module (14) (see FIG. 1 and 2).

[0131] According to various embodiments, the hinge module (14) (see FIG. 1 and 2) may be configured such that, in the unfolded state of the foldable electronic device (1), the first plate (31) and the second plate (32) flatly support the third display area (153) of the first display module (15).

[0132] According to various embodiments, the first plate (31) may include a first display support surface (310) provided corresponding to the third display area (153) of the first display module (15). The second plate (32) may include a second display support surface (320) provided corresponding to the third display area (153) of the first display module (15). The first display support surface (310) and the second display support surface (320) can flatly support the third display area (153) with respect to the first display area (151) and the second display area (152) in the unfolded state of the foldable electronic device (1). The first display support surface (310) may include a plane configured to flatly support one side of the third display area (153) with respect to the center line (A) (see FIG. 1) of the foldable electronic device (1) in the unfolded state of the foldable electronic device (1). The second display support surface (320) of the second plate (32) may include a plane configured to flatly support the other side of the third display area (153) with respect to the center line (A) (see FIG. 1) of the foldable electronic device (1) in the unfolded state of the foldable electronic device (1).

[0133] According to various embodiments, in the unfolded state of the foldable electronic device (1), the first display support surface (310) of the first plate (31) and the second display support surface (320) of the second plate (32) may form an angle of substantially about 180 degrees and may be contained in a virtual plane oriented in the positive direction of the z-coordinate axis. In the unfolded state of the foldable electronic device (1), even if an external force (external pressure such as touch input using a user's finger or touch input using an electronic pen) is applied to the third display area (153) of the first display module (15), the third display area (153) may remain flat due to the support of the first plate (31) and the second plate (32).

[0134] According to various embodiments, in the folded state of the foldable electronic device (1), the first plate (31) and the second plate (32) may face each other and be spaced apart. In the folded state of the foldable electronic device (1), the third display area (153) of the first display module (15) may be bent and positioned between the first plate (31) and the second plate (32).

[0135] According to various embodiments, the hinge module (14) (see FIG. 1 and 2) may be configured such that the relative position of the first plate (31) with respect to the first frame (111) and the relative position of the second plate (32) with respect to the second frame (121) differ in the transition between the unfolded state and the folded state of the foldable electronic device (1).

[0136] According to various embodiments, the hinge module (14) (see FIG. 1 and 2) may be configured such that the first plate (31) and the second plate (32) are substantially parallel in the folded state of the foldable electronic device (1). In the folded state of the foldable electronic device (1), the first display support surface (310) of the first plate (31) and the second display support surface (320) of the second plate (32) may face each other and be substantially parallel.

[0137] According to various embodiments, the hinge module (14) (see FIG. 1 and 2) may be configured such that the first plate (31) and the second plate (32) form an acute angle in the folded state of the foldable electronic device (1). In the folded state of the foldable electronic device (1), the space between the first display support surface (310) of the first plate (31) and the second display support surface (320) of the second plate (32) may be provided in a shape that widens toward the hinge cover (13) so that the third display area (153) of the first display module (15) can be positioned in a bent shape that reduces bending stress and / or buckling phenomena. The third display area (153) positioned in a bent shape in the folded state of the foldable electronic device (1) may be provided (or formed) in a substantially symmetrical shape with respect to the center line (A) (see FIG. 1) of the foldable electronic device (1).

[0138] According to various embodiments, in the folded state of the foldable electronic device (1), the third display area (153) of the display module (15) may be arranged in a bent shape that can reduce the collision (e.g., bending stress) between the compressive stress occurring in one side of the third display area (153) and the tensile stress occurring in the other side of the third display area (153) with respect to the neutral plane inside the third display area (153).

[0139] According to various embodiments, when the foldable electronic device (1) is switched from an unfolded state to a folded state, the third display area (153) of the first display module (15) may be positioned between the first plate (31) and the second plate (32) in a teardrop or dumbbell shape that can reduce breakage or permanent deformation.

[0140] According to various embodiments, in a folded state of the foldable electronic device (1), the first plate (31) and the second plate (32) may be configured to support a third display area (153) of the first display module (15). The third display area (153) may be positioned in a bent shape (e.g., teardrop shape or dumbbell shape) between the first plate (31) and the second plate (32) to be supported by the first plate (31) and the second plate (32) to reduce bending stress and / or buckling.

[0141] According to various embodiments, the first support plate (1111) of the first frame (111) may include a first hinge area (also referred to as the first support area) (51) extending the seventh side portion (B7) of the first side member (1112). A hinge module (14) (see FIG. 1 and 2) may be coupled to the first hinge area (51).

[0142] According to various embodiments, the first hinge region (51) of the first support plate (1111) may be located at least partially between the first back cover (112) and the first plate (31).

[0143] According to various embodiments, in the unfolded state of the foldable electronic device (1), the first hinge region (51) of the first support plate (1111) may be positioned relative to the hinge cover (13) so as to cover a part of the hinge cover (13) with respect to the center line (A) (see FIG. 1) of the foldable electronic device (1). In the folded state of the foldable electronic device (1), the first hinge region (51) may be positioned relative to the hinge cover (13) so as not to cover a part of the hinge cover (13) with respect to the center line (A) of the foldable electronic device (1).

[0144] According to various embodiments, the hinge cover (13) may include a third curved surface (503) that is exposed to the outside in the folded state of the foldable electronic device (1) with respect to the center line (A) (see FIG. 1) of the foldable electronic device (1). The first hinge region (51) of the first support plate (1111) may include a first curved surface (501) corresponding to the third curved surface (503) of the hinge cover (13). The area in which the first curved surface (501) and the third curved surface (503) face each other may differ when transitioning between the unfolded state and the folded state of the foldable electronic device (1).

[0145] According to various embodiments, in the unfolded state of the foldable electronic device (1), a portion of the hinge cover (13) may be positioned between the first hinge region (51) of the first support plate (1111) and the first plate (31) of the hinge module (14) (see FIG. 1 and 2).

[0146] According to various embodiments, the first hinge region (51) of the first support plate (1111) may include a first recessed portion (also referred to as the first recessed surface) (510). By the first recessed portion (510), the first hinge region (51) may have a recessed space (5101) facing the first back cover (112) with respect to the first display region (151) which is substantially flat. When viewed from above the first back cover (112) in the unfolded state of the foldable electronic device (1), the first recessed portion (510) (or the space (5101) by the first recessed portion (510)) may be located between the center line (A) (see FIG. 1) of the foldable electronic device (1) and the first display region (151). In the unfolded state of the foldable electronic device (1), a portion (311) of the first plate (31) may be accommodated in the first recessed portion (510) (or the space (5101) formed by the first recessed portion (510)). In the folded state of the foldable electronic device (1), a portion of the first plate (31) may be accommodated in the first recessed portion (510) (or the space (5101) formed by the first recessed portion (510)). In the transition between the unfolded state and the folded state of the foldable electronic device (1), the relative position of the first plate (31) with respect to the first recessed portion (510) may change. In the unfolded state of the foldable electronic device (1), a portion of the hinge cover (13) is received in the first recessed portion (510) (or the space (5101) formed by the first recessed portion (510)) and may face the first curved surface (501) included in the first recessed portion (510).

[0147] According to various embodiments, the seventh side portion (B7) of the first frame (111) can be understood as an element included in the first hinge area (51) of the first support plate (1111) rather than the first side member (1112).

[0148] According to various embodiments, the second support plate (1211) of the second frame (121) may include a second hinge area (also referred to as the second support area) (52) extending the eighth side portion (B8) of the second side member (1212). A hinge module (14) (see FIG. 1 and 2) may be coupled with the second hinge area (52).

[0149] According to various embodiments, the second hinge region (52) of the second support plate (1211) may be located at least partially between the second back cover (122) and the second plate (32).

[0150] According to various embodiments, in the unfolded state of the foldable electronic device (1), the second hinge region (52) of the second support plate (1211) may be positioned relative to the hinge cover (13) so as to cover a part of the hinge cover (13) with respect to the center line (A) (see FIG. 1) of the foldable electronic device (1). In the folded state of the foldable electronic device (1), the second hinge region (52) may be positioned relative to the hinge cover (13) so as not to cover a part of the hinge cover (13) with respect to the center line (A) (see FIG. 1) of the foldable electronic device (1).

[0151] According to various embodiments, the hinge cover (13) may include a fourth curved surface (504) that is exposed to the outside in the folded state of the foldable electronic device (1) with respect to the center line (A) (see FIG. 1) of the foldable electronic device (1). The second hinge region (52) of the second support plate (1211) may include a second curved surface (502) corresponding to the fourth curved surface (504) of the hinge cover (13). The area in which the second curved surface (502) and the fourth curved surface (504) face each other may differ when transitioning between the unfolded state and the folded state of the foldable electronic device (1).

[0152] According to various embodiments, in the unfolded state of the foldable electronic device (1), a portion of the hinge cover (13) may be positioned between the second hinge region (52) of the second support plate (1211) and the second plate (32) of the hinge module (14) (see FIG. 1 and 2).

[0153] According to various embodiments, the second hinge region (52) of the second support plate (1211) may include a second recessed portion (also referred to as a second recessed surface) (520). By the second recessed portion (520), the second hinge region (52) may have a recessed space (5201) facing the second back cover (122) with respect to the second display region (152) which is substantially flat. When viewed from above the second back cover (122) in the unfolded state of the foldable electronic device (1), the second recessed portion (520) (or the space (5201) by the second recessed portion (520)) may be located between the center line (A) of the foldable electronic device (1) (see FIG. 1) and the second display region (152). In the unfolded state of the foldable electronic device (1), a portion (321) of the second plate (32) may be accommodated in the second recessed portion (520) (or the space (5201) formed by the second recessed portion (520)). In the folded state of the foldable electronic device (1), a portion of the second plate (32) may be accommodated in the second recessed portion (520) (or the space (5201) formed by the second recessed portion (520)). In the transition between the unfolded state and the folded state of the foldable electronic device (1), the relative position of the second plate (32) with respect to the second recessed portion (520) may change. In the unfolded state of the foldable electronic device (1), a portion of the hinge cover (13) is accommodated in the second recessed portion (520) (or the space (5201) formed by the second recessed portion (520)) and may face the second curved surface (502) included in the second recessed portion (520).

[0154] According to various embodiments, the eighth side portion (B8) of the second frame (121) can be understood as an element included in the second hinge area (52) of the second support plate (1211) rather than the second side member (1212).

[0155] According to various embodiments, the first foreign substance prevention member (41) may be placed or coupled to the seventh side portion (B7). The first foreign substance prevention member (41) may reduce the gap between the seventh side portion (B7) and the hinge cover (13). The first foreign substance prevention member (41) may reduce or prevent external foreign substances from entering the interior of the foldable electronic device (1) (e.g., the hinge module (14) of FIG. 1) through the gap between the seventh side portion (B7) and the hinge cover (13).

[0156] According to various embodiments, the second foreign substance prevention member (42) may be placed or coupled to the eighth side portion (B8). The second foreign substance prevention member (42) may reduce the gap between the eighth side portion (B8) and the hinge cover (13). The second foreign substance prevention member (42) may reduce or prevent external foreign substances from entering the interior of the foldable electronic device (1) (e.g., the hinge module (14) of FIG. 1) through the gap between the eighth side portion (B8) and the hinge cover (13).

[0157] According to various embodiments, the first foreign substance prevention member (41) and the second foreign substance prevention member (42) may be configured to be in elastic contact with the hinge cover (13). The first foreign substance prevention member (41) and the second foreign substance prevention member (42) may be configured to have durability that allows them to maintain their shape even with repeated transitions between the unfolded state and the folded state of the foldable electronic device (1). The first foreign substance prevention member (41) and / or the second foreign substance prevention member (42) may include, for example, a brush, a porous form (e.g., a sponge), or a mesh form. The first foreign substance prevention member (41) and / or the second foreign substance prevention member (42) may include various other flexible materials.

[0158] According to various embodiments, the first support plate (1111) of the first frame (111) may include a first hole (also referred to as a first through hole) (not separately illustrated). The first hole may penetrate between the first support surface (1111A) (see FIG. 3) and the third support surface (1111B) (see FIG. 3) of the first support plate (1111). The second support plate (1211) of the second frame (121) may include a second hole (also referred to as a second through hole) (not separately illustrated). The second hole may penetrate between the second support surface (1211A) (see FIG. 3) and the fourth support surface (1211B) (see FIG. 3) of the second support plate (1211). A foldable electronic device (1) may include a flexible printed circuit (FPCB) that crosses a hinge module (14) (see FIG. 1 and 2). The FPCB may pass through a first hole and a second hole. The FPCB may electrically connect at least one first electrical element located or received in a first housing (11) (see FIG. 1) and at least one second electrical element located or received in a second housing (12) (see FIG. 1). In various embodiments, the first hole may be provided (or formed) in a first hinge region (51) of a first support plate (1111). In various embodiments, the second hole may be provided (or formed) in a second hinge region (52) of a second support plate (1211).

[0159] According to various embodiments, the first back cover (112) may be placed or joined to the first hinge area (51) of the first support plate (1111) through a first adhesive material (or first adhesive material) (1121). The first adhesive material (1121) may be placed, for example, between the edge area of ​​the first back cover (112) and the first hinge area (51) of the first support plate (1111).

[0160] According to various embodiments, the second back cover (122) may be placed or joined to the second hinge area (52) of the second support plate (1211) through a second adhesive material (or second adhesive material) (1221). The second adhesive material (1221) may be placed, for example, between the edge area of ​​the second back cover (122) and the second hinge area (52) of the second support plate (1211).

[0161] FIG. 6 is an exploded perspective view of a portion of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0162] FIG. 7 is a perspective view of a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0163] FIG. 8 is a drawing showing a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0164] FIG. 9 is a drawing showing a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure. FIG. 10 is a perspective view of a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0165] FIG. 11 is a perspective view of a part of a folded foldable electronic device (1) according to various embodiments of the present disclosure.

[0166] It is understood in the present disclosure that any combination of features and / or embodiments disclosed in connection with FIGS. 6, 7, 8, 9, 10, and 11 is conceived and included. Any combination of features described below in connection with FIGS. 6, 7, 8, 9, 10, and 11 may be considered to be included in the present disclosure as specific examples.

[0167] Referring to FIGS. 6, 7, 8, 9, 10, and 11, the foldable electronic device (1) may include a first frame (111), a second frame (121), a hinge cover (13), and a hinge module (14). The foldable electronic device (1) may include a first plate (31) and a second plate (32). Descriptions of some components identical to those in the preceding embodiment may not be repeated.

[0168] According to various embodiments, the hinge module (14) may include a first hinge module (also referred to as a first hinge part, a first hinge structure, or a first hinge assembly) (141) and / or a second hinge module (also referred to as a second hinge part, a second hinge structure, or a second hinge assembly) (142). The first hinge module (141) and the second hinge module (142) may be spaced apart in a direction parallel to the center line (A) (see FIG. 1) of the foldable electronic device (1).

[0169] According to various embodiments, the first hinge module (141) may include a first bracket (610) and a second bracket (620). The first hinge module (141) may include a first bracket connection part (701).

[0170] According to various embodiments, the first bracket (610) may be placed or coupled (e.g., fixed) to the first support plate (1111) of the first frame (111). The first bracket (610) may be placed or coupled to the first support surface (1111A) of the first support plate (1111) through screw fastening. For screw fastening, the first bracket (610) may include a plurality of screw holes, and the first support plate (1111) may include a plurality of screw fastening portions aligned corresponding to the plurality of screw holes of the first bracket (610). A screw fastening portion may be understood as a boss comprising a female thread corresponding to a male thread of a screw. The first support surface (1111A) of the first bracket (610) and the first support plate (1111) can be provided in a fitted form so that they can be stably joined to each other.

[0171] According to various embodiments, the first bracket (610) can be coupled to the first hinge area (51) of the first frame (111).

[0172] According to various embodiments, the first bracket (610) may include a first part bracket (611) and a second part bracket (612) separated from each other.

[0173] According to various embodiments, the first bracket (610) may be provided (or formed) as an integrated or single structure (e.g., a single continuous structure or a complete structure) that replaces the first part bracket (611) and the second part bracket (612).

[0174] According to various embodiments, the second bracket (620) may be placed or coupled (e.g., fixed) to the second support plate (1211) of the second frame (121). The second bracket (620) may be placed or coupled to the second support surface (1211A) of the second support plate (1211) through screw fastening. For screw fastening, the second bracket (620) may include a plurality of screw holes, and the second support plate (1211) may include a plurality of screw fastening parts aligned corresponding to the plurality of screw holes of the second bracket (620). The second bracket (620) and the second support surface (1211A) of the second support plate (1211) may be provided in a fitting form so that they can be stably coupled to each other.

[0175] According to various embodiments, the second bracket (620) can be coupled to the second hinge area (52) of the second frame (121).

[0176] According to various embodiments, the second bracket (620) may include a third part bracket (621) and a fourth part bracket (622) separated from each other.

[0177] According to various embodiments, the second bracket (620) may be provided (or formed) as an integral or single structure (e.g., a single continuous structure or a complete structure) replacing the third part bracket (621) and the fourth part bracket (622).

[0178] According to various embodiments, the first part bracket (611) of the first bracket (610) and the third part bracket (621) of the second bracket (620) may be provided (or formed) substantially symmetrically with respect to the center line (A) of the foldable electronic device (1).

[0179] According to various embodiments, the second part bracket (612) of the first bracket (610) and the fourth part bracket (622) of the second bracket (620) may be provided (or formed) in a substantially symmetrical shape with respect to the center line (A) of the foldable electronic device (1).

[0180] According to various embodiments, the first bracket connecting part (701) can connect the first bracket (610) and the second bracket (620). The first bracket (610) and the second bracket (620) may be rotatable with respect to the first bracket connecting part (701). The first bracket (610) and the second bracket (620) may be operatively connected to the first bracket connecting part (701). The first bracket connecting part (701) may be configured to provide a force that allows the first frame (111) to which the first bracket (610) is fixed and the second frame (121) to which the second bracket (620) is fixed to rotate relative to each other. The first bracket connection part (701) may be configured so that the first frame (111) to which the first bracket (610) is fixed and the second frame (121) to which the second bracket (620) is fixed can be rotated in opposite directions at the same angle. The first bracket connection part (701) may be configured so that the first frame (111) to which the first bracket (610) is fixed and the second frame (121) to which the second bracket (620) is fixed can be rotated at least one designated angle and maintain the rotated angle. The first bracket connection part (701) may be configured to have a free-stop function, for example.

[0181] According to various embodiments, the first bracket connection (701) may include a first part (also called a first arm) (711) and a second part (also called a first rotate) (712). The first bracket connection (701) may include a third part (also called a second arm) (713) and a fourth part (also called a second rotate) (714). The first bracket connection (701) may include a first rotational support (721), a second rotational support (722), and a third rotational support (723). The first bracket connection (701) may include a first cam (731). The first bracket connecting part (701) may include a first shaft (741), a second shaft (742), a third shaft (743), and a fourth shaft (744). The first bracket connecting part (701) may include a first snap ring (751) and a second snap ring (752). The first bracket connecting part (701) may include a first washer (761) and a second washer (762). The first bracket connecting part (701) may include a first circular gear (771), a second circular gear (772), a third circular gear (773), and a fourth circular gear (774). The first bracket connection part (701) may include a first compression spring (781) and a second compression spring (782).

[0182] According to various embodiments, the first part (711) of the first bracket connection (701) may include a first shaft connection (also referred to as a first shaft arm or first shaft connection arm) (SC1). The first shaft (741) may pass through a first shaft hole provided in the first shaft connection (SC1) of the first part (711). The first shaft (741) may provide (or form) a first rotation axis (C1) between the first part (711) and the first bracket connection (701). The first rotation axis (C1) may be a center axis of the first shaft (741). The first rotation axis (C1) may be substantially parallel to the center line (A) of the foldable electronic device (1) and may be spaced apart from the center line (A). The first part (711) is fixed to the first shaft (741), and the first part (711) and the first shaft (741) can rotate together around the first rotation axis (C1). The second rotation support (722) and the third rotation support (723) coupled to the hinge cover (13) can be configured to support the rotation of the first shaft (741). The first shaft (741), the second rotation support (722), and the third rotation support (723) can be understood as a first rotational motion guide (RMG1) that enables the first part (711) to rotate around the first rotation axis (C1). The first rotational motion guide (RMG1) can be understood as a first sliding pair. The second rotational support (722) and the third rotational support (723) can be understood as a first rotational motion guide rail, and the first shaft (741) can be understood as a first rotational motion slider corresponding to the first rotational motion guide rail.

[0183] According to various embodiments, the first part (711) of the first bracket connection part (701) and the first part bracket (611) of the first bracket (610) fixed to the first frame (111) may be connected so as to be mutually rotatable. The first hinge module (141) may include a third rotational movement guide (RMG3) for mutual rotational movement between the first part (711) and the first part bracket (611). Through the third rotational movement guide (RMG3), the first part (711) may be rotated smoothly and seamlessly relative to the first part bracket (611). The third rotational movement guide (RMG3) may be configured so that the first part (711) and the first part bracket (611) may be mutually rotatable through sliding. The third rotational motion guide (RMG3) may include a third rotational motion guide rail (GR3) and a third rotational motion slider (S3). The third rotational motion slider (S3) may be positioned on the third rotational motion guide rail (GR3) so as to be slidable with respect to the third rotational motion guide rail (GR3). One of the first part (711) and the first part bracket (611) may include the third rotational motion guide rail (GR3), and the other may include the third rotational motion slider (S3). For example, the first part (711) may include the third rotational motion guide rail (GR3), and the first part bracket (611) may include the third rotational motion slider (S3). As the third rotary motion slider (S3) moves guided by the third rotary motion guide rail (GR3), the first part (711) can be rotated relative to the first part bracket (611). The third rotary motion guide (RMG3) can be understood as a third sliding treatment. The third rotary motion guide (RMG3) can provide (or form) a third rotation axis (C3) along which the first part (711) and the first part bracket (611) rotate relative to each other.The third rotation axis (C3) may be substantially parallel to the center line (A) of the foldable electronic device (1) and may be spaced apart from the center line (A) and the first rotation axis (C1). The third rotation axis (C3) may be located outside the first part (711) and the first part bracket (611).

[0184] According to various embodiments, the second part (712) of the first bracket connection part (701) may be connected to the first rotational support part (721) so as to be rotatable with respect to the first rotational support part (721). The first hinge module (141) may include a second rotational movement guide (RMG2) for mutual rotational movement between the second part (712) and the first rotational support part (721). Through the second rotational movement guide (RMG2), the second part (712) may be rotated smoothly and seamlessly with respect to the first rotational support part (721). The second rotational movement guide (RMG2) may be configured so that the second part (712) and the first rotational support part (721) can rotate mutually through sliding. The second rotational motion guide (RMG2) may include a second rotational motion guide rail (GR2) included in the first rotational support (721). The second rotational motion guide (RMG2) may include a second rotational motion slider (S2) included in the second part (712) corresponding to the second rotational motion guide rail (GR2). The second rotational motion slider (S2) may be positioned on the second rotational motion guide rail (GR2) so as to be slidable with respect to the second rotational motion guide rail (GR2). By the second rotational motion slider (S2) being guided and moved along the second rotational motion guide rail (GR2), the second part (712) may be rotated with respect to the first rotational support (721). The second rotational motion guide (RMG2) may be understood as a second sliding treatment. The second rotational motion guide (RMG2) may provide (or form) a second rotation axis (C2) on which the second part (712) and the first rotational support (721) rotate relative to each other. The second rotation axis (C2) may be substantially parallel to the center line (A) of the foldable electronic device (1) and may be spaced apart from the center line (A), the first rotation axis (C1), and the third rotation axis (C3).The second rotation axis (C2) may be located outside the first rotation support (721) and the second part (712), but is not limited thereto.

[0185] According to various embodiments, the first rotational support (721) may be coupled to the hinge cover (13). The first rotational support (721) may be coupled to the hinge cover (13), for example, by screw fastening, but is not limited thereto. The first rotational support (721) and the hinge cover (13) may be provided in a snap-fit ​​form so that they can be stably coupled to each other.

[0186] According to various embodiments, the second part (712) of the first bracket connection part (701) and the second part bracket (612) of the first bracket (610) fixed to the first frame (111) may be connected so as to be mutually rotatable. The first hinge module (141) may include a fourth rotational movement guide (RMG4) for mutually rotatable movement between the second part (712) and the second part bracket (612). Through the fourth rotational movement guide (RMG4), the second part (712) may be rotated smoothly and seamlessly relative to the second part bracket (612). The fourth rotational movement guide (RMG4) may be configured so that the second part (712) and the second part bracket (612) may be mutually rotatable through sliding. The fourth rotational motion guide (RMG4) may include a fourth rotational motion guide rail (GR4) and a fourth rotational motion slider (S4). The fourth rotational motion slider (S4) may be positioned on the fourth rotational motion guide rail (GR4) so ​​as to be slidable with respect to the fourth rotational motion guide rail (GR4). One of the second part (712) and the second part bracket (612) may include the fourth rotational motion guide rail (GR4), and the other may include the fourth rotational motion slider (S4). For example, the second part (712) may include the fourth rotational motion guide rail (GR4), and the second part bracket (612) may include the fourth rotational motion slider (S4). As the fourth rotary motion slider (S4) moves guided by the fourth rotary motion guide rail (GR4), the second part (712) can be rotated relative to the second part bracket (612). The fourth rotary motion guide (RMG4) can be understood as a fourth sliding treatment. The fourth rotary motion guide (RMG4) can provide (or form) a fourth rotation axis (C4) on which the second part (712) and the second part bracket (612) rotate relative to each other.The fourth rotation axis (C4) may be substantially parallel to the center line (A) of the foldable electronic device (1) and may be spaced apart from the center line (A), the first rotation axis (C1), the second rotation axis (C2), and the third rotation axis (C3). The fourth rotation axis (C4) may be located outside the second part (712) and the second part bracket (612), but is not limited thereto.

[0187] According to various embodiments, in the unfolded state of the foldable electronic device (1), when viewed from above on the front of the foldable electronic device (1) (e.g., in the negative direction of the z-axis) or when viewed from above on the first back cover (112) (see FIG. 1) (e.g., in the positive direction of the z-axis), the first rotation axis (C1), the second rotation axis (C2), and the fourth rotation axis (C4) may be located in the negative direction of the y-axis with respect to the center line (A) of the foldable electronic device (1), and the third rotation axis (C3) may be located in the positive direction of the y-axis. In the unfolded state of the foldable electronic device (1), when viewed from above the front of the foldable electronic device (1) or from above the first back cover (112), the second rotation axis (C2) is located closer to the center line (A) of the foldable electronic device (1) than the first rotation axis (C1), and the first rotation axis (C1) may be located closer to the center line (A) of the foldable electronic device (1) than the fourth rotation axis (C4).

[0188] According to various embodiments, the radius of curvature at which the second part (712) of the first bracket connection part (701) and the second part bracket (612) of the first bracket (610) rotate mutually through sliding around the fourth rotation axis (C4) may be smaller than the radius of curvature at which the first part (711) of the first bracket connection part (701) and the first part bracket (611) of the first bracket (610) rotate mutually through sliding around the third rotation axis (C3).

[0189] According to various embodiments, the third portion (713) of the first bracket connection portion (701) may include a second shaft connection portion (also referred to as a second shaft arm or second shaft connection arm) (SC2). The second shaft (742) may pass through a second shaft hole provided in the second shaft connection portion (SC2) of the third portion (713). The second shaft (742) may provide (or form) a fifth rotation axis (C5) between the third portion (713) and the first bracket connection portion (701). The fifth rotation axis (C5) may be the center axis of the second shaft (742). The fifth rotation axis (C5) may be substantially parallel to the center line (A) of the foldable electronic device (1) and may be spaced apart from the center line (A).

[0190] The third part (713) is fixed to the second shaft (742), and the third part (713) and the second shaft (742) can rotate together around the fifth rotation axis (C5). The second rotation support (722) and the third rotation support (723) coupled to the hinge cover (13) can support the rotation of the second shaft (742). The second shaft (742), the second rotation support (722), and the third rotation support (723) can be understood as a fifth rotational movement guide (RMG5) that enables the third part (713) to rotate around the fifth rotation axis (C5). The fifth rotational movement guide (RMG5) can be understood as a fifth sliding treatment. The second rotational support (722) and the third rotational support (723) can be understood as a fifth rotational motion guide rail, and the second shaft (742) can be understood as a fifth rotational motion slider corresponding to the fifth rotational motion guide rail.

[0191] According to various embodiments, the third part (713) of the first bracket connection (701) and the third part bracket (621) of the second bracket (620) fixed to the second frame (121) may be connected so as to be mutually rotatable. The first hinge module (141) may include a seventh rotational movement guide (RMG7) for mutually rotatable movement between the third part (713) and the third part bracket (621). Through the seventh rotational movement guide (RMG7), the third part (713) may be rotated smoothly and seamlessly relative to the third part bracket (621). The seventh rotational movement guide (RMG7) may be configured so that the third part (713) and the third part bracket (621) may be mutually rotatable through sliding. The seventh rotational motion guide (RMG7) may include a seventh rotational motion guide rail (GR7) and a seventh rotational motion slider (S7). The seventh rotational motion slider (S7) may be positioned on the seventh rotational motion guide rail (GR7) so as to be slidable with respect to the seventh rotational motion guide rail (GR7). One of the third part (713) and the third part bracket (621) may include the seventh rotational motion guide rail (GR7), and the other may include the seventh rotational motion slider (S7). For example, the third part (713) may include the seventh rotational motion guide rail (GR7), and the third part bracket (621) may include the seventh rotational motion slider (S7). As the seventh rotary motion slider (S7) is guided and moved along the seventh rotary motion guide rail (GR7), the third part (713) can be rotated relative to the third part bracket (621). The seventh rotary motion guide (RMG7) can be understood as the seventh sliding treatment. The seventh rotary motion guide (RMG7) can provide (or form) a seventh rotation axis (C7) along which the third part (713) and the third part bracket (621) rotate relative to each other.The seventh rotation axis (C7) may be substantially parallel to the center line (A) of the foldable electronic device (1) and may be spaced apart from the center line (A) and the fifth rotation axis (C5). The seventh rotation axis (C7) may be located outside the third part (713) and the third part bracket (621).

[0192] According to various embodiments, the first rotational motion guide (RMG1) and the fifth rotational motion guide (RMG5) may be provided (or formed) substantially symmetrically with respect to the center line (A) of the foldable electronic device (1). The third rotational motion guide (RMG3) and the seventh rotational motion guide (RMG7) may be provided (or formed) substantially symmetrically with respect to the center line (A) of the foldable electronic device (1). The first rotation axis (C1) and the fifth rotation axis (C5) may be provided (or formed) substantially symmetrically with respect to the center line (A) of the foldable electronic device (1). The third rotation axis (C3) and the seventh rotation axis (C7) may be provided (or formed) substantially symmetrically with respect to the center line (A) of the foldable electronic device (1).

[0193] According to various embodiments, the first part (711) of the first bracket connection part (701) and the third part (713) of the first bracket connection part (701) may be provided (or formed) in a substantially symmetrical shape with respect to the center line (A) of the foldable electronic device (1).

[0194] According to various embodiments, the fourth part (714) of the first bracket connection (701) may be connected to the first rotational support (721) so as to be rotatable with respect to the first rotational support (721). The first hinge module (141) may include a sixth rotational movement guide (RMG6) for mutual rotational movement between the fourth part (714) and the first rotational support (721). Through the sixth rotational movement guide (RMG6), the fourth part (714) may be rotated smoothly and seamlessly with respect to the first rotational support (721). The sixth rotational movement guide (RMG6) may be configured so that the fourth part (714) and the first rotational support (721) may be rotatable with respect to each other through sliding. The sixth rotational motion guide (RMG6) may include a sixth rotational motion guide rail (GR6) included in the first rotational support (721). The sixth rotational motion guide (RMG6) may include a sixth rotational motion slider (S6) included in the fourth part (714) corresponding to the sixth rotational motion guide rail (GR6). The sixth rotational motion slider (S6) may be positioned on the sixth rotational motion guide rail (GR6) so as to be slidable with respect to the sixth rotational motion guide rail (GR6). By the sixth rotational motion slider (S6) being guided and moved along the sixth rotational motion guide rail (GR6), the fourth part (714) may be rotated with respect to the first rotational support (721). The sixth rotational motion guide (RMG6) may be understood as a sixth sliding treatment. The sixth rotational motion guide (RMG6) may provide (or form) a sixth rotational axis (C6) in which the fourth part (714) and the first rotational support (721) rotate relative to each other. The sixth rotational axis (C6) may be substantially parallel to the center line (A) of the foldable electronic device (1) and may be spaced apart from the center line (A), the fifth rotational axis (C5), and the seventh rotational axis (C7).The sixth rotation axis (C6) may be located outside the first rotation support (721) and the fourth part (714), but is not limited thereto.

[0195] According to various embodiments, the fourth part (714) of the first bracket connection (701) and the fourth part bracket (622) of the second bracket (620) fixed to the second frame (121) may be connected so as to be mutually rotatable. The first hinge module (141) may include an eighth rotational movement guide (RMG8) for mutually rotatable movement between the fourth part (714) and the fourth part bracket (622). Through the eighth rotational movement guide (RMG8), the fourth part (714) may be rotated smoothly and seamlessly relative to the fourth part bracket (622). The eighth rotational movement guide (RMG8) may be configured so that the fourth part (714) and the fourth part bracket (622) may be mutually rotatable through sliding. The eighth rotational motion guide (RMG8) may include an eighth rotational motion guide rail (GR8) and an eighth rotational motion slider (S8). The eighth rotational motion slider (S8) may be positioned on the eighth rotational motion guide rail (GR8) so as to be slidable with respect to the eighth rotational motion guide rail (GR8). One of the fourth part (714) and the fourth part bracket (622) may include the eighth rotational motion guide rail (GR8), and the other may include the eighth rotational motion slider (S8). For example, the fourth part (714) may include the eighth rotational motion guide rail (GR8), and the fourth part bracket (622) may include the eighth rotational motion slider (S8). As the eighth rotary motion slider (S8) moves guided by the eighth rotary motion guide rail (GR8), the fourth part (714) can be rotated relative to the fourth part bracket (622). The eighth rotary motion guide (RMG8) can be understood as the eighth sliding treatment. The eighth rotary motion guide (RMG8) can provide (or form) an eighth rotation axis (C8) along which the fourth part (714) and the fourth part bracket (622) rotate relative to each other.The eighth rotation axis (C8) may be substantially parallel to the center line (A) of the foldable electronic device (1) and may be spaced apart from the center line (A), the fifth rotation axis (C5), the sixth rotation axis (C6), and the seventh rotation axis (C7). The eighth rotation axis (C8) may be located outside the fourth part (714) and the fourth part bracket (622), but is not limited thereto.

[0196] According to various embodiments, the second rotational motion guide (RMG2) and the sixth rotational motion guide (RMG6) may be provided (or formed) substantially symmetrically with respect to the center line (A) of the foldable electronic device (1). The fourth rotational motion guide (RMG4) and the eighth rotational motion guide (RMG8) may be provided (or formed) substantially symmetrically with respect to the center line (A) of the foldable electronic device (1). The second rotation axis (C2) and the sixth rotation axis (C6) may be provided (or formed) substantially symmetrically with respect to the center line (A) of the foldable electronic device (1). The fourth rotation axis (C4) and the eighth rotation axis (C8) may be provided (or formed) substantially symmetrically with respect to the center line (A) of the foldable electronic device (1).

[0197] According to various embodiments, the second part (712) of the first bracket connection part (701) and the sixth part (716) of the first bracket connection part (701) may be provided (or formed) in a substantially symmetrical shape with respect to the center line (A) of the foldable electronic device (1).

[0198] According to various embodiments, the second rotational support (722) of the first bracket connection (701) may be spaced apart from the first rotational support (721) in a direction parallel to the center line (A) of the foldable electronic device (1). The second rotational support (722) may be coupled to the hinge cover (13). The second rotational support (722) and the hinge cover (13) may be provided in a fitting form so that they can be stably coupled to each other. The second rotational support (722) may be coupled to the hinge cover (13), for example, through screw fastening, but is not limited thereto. The second rotational support (722) may support the first shaft (741) so that the first shaft (741) can rotate around the first rotation axis (C1). The second rotational support (722) may support the second shaft (742) so that the second shaft (742) can rotate about the fifth rotation axis (C5). The second rotational support (722) may include a third shaft hole through which the first shaft (741) passes, and a fourth shaft hole through which the second shaft (742) passes. The third shaft hole may support rotation of the first shaft (741), and the fourth shaft hole may support rotation of the second shaft (742). In various embodiments, the second rotational support (722) may be provided (or formed) in a substantially symmetrical shape with respect to the center line (A) of the foldable electronic device (1).

[0199] According to various embodiments, the third rotational support (723) of the first bracket connection (701) may be spaced apart from the first rotational support (721) in a direction parallel to the center line (A) of the foldable electronic device (1). The third rotational support (723) may be coupled to the hinge cover (13). The third rotational support (723) and the hinge cover (13) may be provided in a fitting form so that they can be stably coupled to each other. The third rotational support (723) may be coupled to the hinge cover (13), for example, through screw fastening, but is not limited thereto. The third rotational support (723) may support the first shaft (741) so that the first shaft (741) can rotate around the first rotation axis (C1). The third rotational support (723) may support the second shaft (742) so that the second shaft (742) can rotate about the fifth rotation axis (C5). The third rotational support (723) may include a fifth shaft hole through which the first shaft (741) passes, and a sixth shaft hole through which the second shaft (742) passes. The fifth shaft hole may support rotation of the first shaft (741), and the sixth shaft hole may support rotation of the second shaft (742). In various embodiments, the third rotational support (723) may be provided (or formed) in a substantially symmetrical shape with respect to the center line (A) of the foldable electronic device (1).

[0200] According to various embodiments, the first circular gear (771) of the first bracket connection (701) may be positioned between the first rotational support (721) and the third rotational support (723) and fixed to the first shaft (741). The first circular gear (771) may rotate together with the first shaft (741) about the first rotation axis (C1). In various embodiments, the first shaft (741) may be provided (or formed) in a form including the first circular gear (771). The second circular gear (772) of the first bracket connection (701) may be positioned between the first rotational support (721) and the third rotational support (723) and fixed to the second shaft (742). The second circular gear (772) can be rotated together with the second shaft (742) around the fifth rotation axis (C5). In various embodiments, the second shaft (742) may be provided (or formed) in a form including the second circular gear (772). The first circular gear (771) and the second circular gear (772) may be provided (or formed) in a substantially symmetrical form with respect to the center line (A) of the foldable electronic device (1).

[0201] According to various embodiments, the third circular gear (773) of the first bracket connection (701) may be positioned between the first rotational support (721) and the third rotational support (723) and may be fixed to the third shaft (743). The third circular gear (773) may rotate together with the third shaft (743) around a ninth rotational axis. The ninth rotational axis may be the central axis of the third shaft (743). The ninth rotational axis may be substantially parallel to the first rotational axis (C1) and may be spaced apart from the first rotational axis (C1). In various embodiments, the third shaft (743) may be provided (or formed) in a form including the third circular gear (773). The first rotational support (721) and the third rotational support (723) may support the rotation of the third shaft (743). One end of the third shaft (743) may be positioned in the seventh shaft hole formed in the first rotational support (721), and the other end of the third shaft (743) may be positioned in the eighth shaft hole formed in the third rotational support (723). The seventh shaft hole and the eighth shaft hole may support the rotation of the third shaft (743).

[0202] According to various embodiments, the fourth circular gear (774) of the first bracket connection (701) may be positioned between the first rotational support (721) and the third rotational support (723) and may be fixed to the fourth shaft (744). The third circular gear (773) and the fourth circular gear (774) may be provided (or formed) in a substantially symmetrical shape with respect to the center line (A) of the foldable electronic device (1). The third shaft (743) and the fourth shaft (744) may be provided (or formed) in a substantially symmetrical shape with respect to the center line (A) of the foldable electronic device (1). The fourth circular gear (774) may be rotated together with the fourth shaft (744) around a tenth rotational axis. The tenth rotational axis may be the center axis of the fourth shaft (744). The tenth rotation axis may be substantially parallel to the fifth rotation axis (C5) and may be spaced apart from the fifth rotation axis (C5). In various embodiments, the fourth shaft (744) may be provided (or formed) in a form including a fourth circular gear (774). The first rotation support (721) and the third rotation support (723) may support the rotation of the fourth shaft (744). One end of the fourth shaft (744) may be positioned in a ninth shaft hole formed in the first rotation support (721), and the other end of the fourth shaft (744) may be positioned in a tenth shaft hole formed in the third rotation support (723). The ninth rotation axis for the third shaft (743) and the tenth rotation axis for the fourth shaft (744) may be provided (or formed) in a substantially symmetrical form with respect to the center line (A) of the foldable electronic device (1).

[0203] According to various embodiments, the third circular gear (773) may be engaged with the first circular gear (771). The fourth circular gear (774) may be engaged with the second circular gear (772). The third circular gear (773) and the fourth circular gear (774) may be engaged with each other. The first circular gear (771), the second circular gear (772), the third circular gear (773), and the fourth circular gear (774) may be, for example, spur gears. The third circular gear (773) and the fourth circular gear (774) may transmit force (e.g., rotational force) between the first circular gear (771) and the second circular gear (772). Because the first circular gear (771), the second circular gear (772), the third circular gear (773), and the fourth circular gear (774) are drivenly connected, the first shaft (741) and the first circular gear (771) can be rotated in the opposite direction to the second shaft (742) and the second circular gear (772).

[0204] According to various embodiments, a first shaft connecting part (SC1) included in the first part (711) of the first bracket connecting part (701), and a second shaft connecting part (SC2) included in the third part (713) of the first bracket connecting part (701) may be positioned between the second rotational support part (722) and the third rotational support part (723). The first shaft connecting part (SC1) of the first part (711) may include a first cam gear. The second shaft connecting part (SC2) of the third part (713) may include a second cam gear. The first cam (731) may include a third cam gear (7311) located between the first shaft connection (SC1) and the second rotational support (722) of the first part (711), and a fourth cam gear (7312) located between the second shaft connection (SC2) and the second rotational support (722) of the third part (713). The first cam gear and the third cam gear (7311) may be engaged with each other, and the second cam gear and the fourth cam gear (7312) may be engaged with each other. The first cam gear may include a first tooth surface with an uneven shape facing the third cam gear (7311), and the third cam gear (7311) may include a second tooth surface with an uneven shape facing the first cam gear. The second cam gear may include a third surface with an uneven shape facing the fourth cam gear (7312), and the fourth cam gear (7312) may include a fourth surface with an uneven shape facing the second cam gear.

[0205] According to various embodiments, the end of the first shaft (741) protrudes through the second rotational support (722), and the first snap ring (751) (e.g., the first E-ring) can be fastened to a recess formed at the end of the first shaft (741). The first washer (761) is passed through the first shaft (741) and can be positioned between the second rotational support (722) and the first snap ring (751).

[0206] According to various embodiments, the first shaft (741) passes through the first compression spring (781), and the first compression spring (781) may be elastically positioned between the third cam gear (7311) of the first cam (731) and the second rotational support (722). The first snap ring (751) and the first washer (761) may restrict the first shaft (741) from moving in a direction (e.g., negative direction of the x-axis) from the third cam gear (7311) of the first cam (731) to the first cam gear of the first part (711) due to the elasticity of the first compression spring (781). The second shaft (742) passes through the second compression spring (782), and the second compression spring (782) can be elastically positioned between the fourth cam gear (7312) of the first cam (731) and the second rotational support (722). The second snap ring (752) and the second washer (762) can restrict the second shaft (742) from moving in a direction (e.g., negative direction of the x-axis) from the fourth cam gear (7312) of the first cam (731) to the second cam gear of the third part (713) due to the elasticity of the second compression spring (782). Due to the elasticity of the first compression spring (781) and the elasticity of the second compression spring (782), the first cam gear of the first part (711) and the third cam gear (7311) of the first cam (731) can be elastically contacted, and the second cam gear of the third part (713) and the fourth cam gear (7312) of the first cam (731) can be elastically contacted.

[0207] According to various embodiments, the first bracket connecting part (701) may have the function of providing force so that the first part (711) and the third part (713) can rotate relative to each other. The first bracket connecting part (701) may have the function of allowing the first part (711) and the third part (713) to rotate in opposite directions at the same angle. The first bracket connecting part (701) may have the function of allowing the first part (711) and the third part (713) to be rotated and maintained at at least one designated angle (e.g., a free-stop function). Through the interaction between the first circular gear (771), the second circular gear (772), the third circular gear (773), and the fourth circular gear (774), and the interaction between the first cam gear of the first part (711) and the third cam gear (7311) of the first cam (731) using the elasticity of the first compression spring (781) and the elasticity of the second compression spring (782), and the interaction between the second cam gear of the third part (713) and the fourth cam gear (7312) of the first cam (731), the first bracket connection (701) can provide the functions described above. The first bracket connection (701) can be understood as an actuator (also called a driving part) of the first hinge module (141).

[0208] According to various embodiments, when the angle between the first frame (111) and the second frame (121) changes during the transition between the unfolded state and the folded state of the foldable electronic device (1), the first part (711) may be rotated about the first rotation axis (C1) with respect to the first shaft (741), and the third part (713) may be rotated about the fifth rotation axis (C5) with respect to the second shaft (742). When the angle between the first frame (111) and the second frame (121) changes during the transition between the unfolded state and the folded state of the foldable electronic device (1), the first part (711) may be rotated about the third rotation axis (C3) with respect to the first part bracket (611) fixed to the first frame (111), and the third part (713) may be rotated about the sixth rotation axis (C6) with respect to the third part bracket (621) fixed to the second frame (121). When the angle between the first frame (111) and the second frame (121) changes during the transition between the unfolded state and the folded state of the foldable electronic device (1), the second part (712) can be rotated about the second rotation axis (C2) with respect to the first rotation support (721), and the fourth part (714) can be rotated about the seventh rotation axis (C7) with respect to the first rotation support (721). When the angle between the first frame (111) and the second frame (121) changes during the transition between the unfolded state and the folded state of the foldable electronic device (1), the second part (712) may be rotated about the fourth rotation axis (C4) with respect to the second part bracket (612) fixed to the first frame (111), and the fourth part (714) may be rotated about the eighth rotation axis (C8) with respect to the fourth part bracket (622) fixed to the second frame (121).

[0209] According to various embodiments, the first part (711) of the first bracket connection part (701) and the first part bracket (611) of the first bracket (610) fixed to the first frame (111) can be connected to each other so as to be linearly movable. The third rotational movement guide (RMG3) can be changed to a linear movement guide. The third rotational movement guide rail (GR3) can be changed to a linear movement guide rail. The third rotational movement slider (S3) can be changed to a linear movement slider.

[0210] According to various embodiments, the third part (713) of the first bracket connection part (701) and the third part bracket (621) of the second bracket (620) fixed to the second frame (121) can be connected to each other so as to be linearly movable. The seventh rotational movement guide (RMG7) can be changed to a linear movement guide. The seventh rotational movement guide rail (GR7) can be changed to a linear movement guide rail. The seventh rotational movement slider (S7) can be changed to a linear movement slider.

[0211] According to various embodiments, the first plate (31) may be joined to the second part (712) of the first bracket connection part (701). The first plate (31) may be joined to the second part (712), for example, by screw fastening.

[0212] According to various embodiments, the second plate (32) may be joined to the fourth part (714) of the first bracket connection part (701). The second plate (32) may be joined to the fourth part (714), for example, by screw fastening.

[0213] According to various embodiments, the second hinge module (142) may include a third bracket (630) and a fourth bracket (640). The second hinge module (142) may include a second bracket connection (702). The second hinge module (142) may be implemented substantially identical to or at least partially similar to the first hinge module (141). The third bracket (630) may include a fifth part bracket (631) (e.g., a first part bracket (611)) and a sixth part bracket (632) (e.g., a second part bracket (612)). The fifth part bracket (631) and the sixth part bracket (632) may be coupled to the first hinge area (51) of the first frame (111). The fourth bracket (640) may include a seventh part bracket (641) (e.g., a third part bracket (621)) and an eighth part bracket (642) (e.g., a fourth part bracket (622)). The seventh part bracket (641) and the eighth part bracket (642) may be coupled to the second hinge area (52) of the second frame (121). The second bracket connection (702) (e.g., the first bracket connection (701)) may include a fifth part (also called the third arm) (715) (e.g., the first part (711)), a sixth part (also called the third rotate) (716) (e.g., the second part (712)), a seventh part (also called the fourth arm) (717) (e.g., the third part (713)), and an eighth part (also called the fourth rotate) (718) (e.g., the fourth part (714)). The second bracket connection part (702) may include a fourth rotational support part (724) (e.g., a first rotational support part (721)), a fifth rotational support part (725) (e.g., a second rotational support part (722)), and a sixth rotational support part (726) (e.g., a third rotational support part (723)). The second bracket connection part (702) may include a second cam (732) (e.g., a first cam (731)).The second bracket connecting part (702) may include a fifth shaft (745) (e.g., first shaft (741)), a sixth shaft (746) (e.g., second shaft (742)), a seventh shaft (e.g., third shaft (743)), and an eighth shaft (e.g., fourth shaft (744)). The second bracket connecting part (702) may include a third snap ring (753) (e.g., first snap ring (751)) and a fourth snap ring (754) (e.g., second snap ring (752)). The second bracket connecting part (702) may include a third washer (763) (e.g., first washer (761)) and a fourth washer (764) (e.g., second washer (762)). The second bracket connecting part (702) may include a fifth circular gear (775) (e.g., first circular gear (771)), a sixth circular gear (776) (e.g., second circular gear (772)), a seventh circular gear (777) (e.g., third circular gear (773)), and an eighth circular gear (778) (e.g., fourth circular gear (774)). The second bracket connecting part (702) may include a third compression spring (783) (e.g., first compression spring (781)) and a fourth compression spring (783) (e.g., second compression spring (782)). The second hinge module (142) may include a ninth rotation axis (C9), a tenth rotation axis (C10), an eleventh rotation axis (C11), a twelfth rotation axis (C12), a thirteenth rotation axis (C13), a fourteenth rotation axis (C14), a fifteenth rotation axis (C15), and a sixteenth rotation axis (C16). The fifth part (715) is configured to be rotatable around the ninth rotation axis (C9) of the fifth shaft (745), and the ninth rotation axis (C9) may coincide with the first rotation axis (C1) of the first hinge module (141).The 6th part (716) is configured to rotate about the 10th rotation axis (C10) by sliding with respect to the 4th rotation support part (724), and the 10th rotation axis (C10) may coincide with the 2nd rotation axis (C2) of the 1st hinge module (141). The 5th part (715) is configured to rotate about the 11th rotation axis (C11) by sliding with respect to the 5th part bracket (631) of the 3rd bracket (630), and the 11th rotation axis (C11) may coincide with the 3rd rotation axis (C3) of the 1st hinge module (141). The 6th part (716) is configured to be rotatable about the 12th rotation axis (C12) by sliding with respect to the 6th part bracket (632) of the 3rd bracket (630), and the 12th rotation axis (C12) may coincide with the 4th rotation axis (C4) of the 1st hinge module (141). The 7th part (717) is configured to be rotatable about the 13th rotation axis (C13) of the 6th shaft (746), and the 13th rotation axis (C13) may coincide with the 5th rotation axis (C5) of the 1st hinge module (141). The 8th part (718) is configured to be rotatable around the 14th rotation axis (C14) by sliding with respect to the 4th rotation support (724), and the 14th rotation axis (C14) may coincide with the 6th rotation axis (C6) of the 1st hinge module (141). The 7th part (717) is configured to be rotatable around the 15th rotation axis (C15) by sliding with respect to the 7th part bracket (641) of the 4th bracket (640), and the 15th rotation axis (C15) may coincide with the 7th rotation axis (C7) of the 1st hinge module (141). The 8th part (718) is configured to be rotatable around the 16th rotation axis (C16) by sliding with respect to the 8th part bracket (642) of the 4th bracket (640), and the 16th rotation axis (C16) can coincide with the 8th rotation axis (C8) of the 1st hinge module (141).

[0214] According to various embodiments, the first plate (31) can be joined to the second part (712) of the first hinge module (141) and the sixth part (716) of the second hinge module (142) through screw fastening. The second plate (32) can be joined to the fourth part (714) of the first hinge module (141) and the eighth part (718) of the second hinge module (142) through screw fastening.

[0215] According to various embodiments, the hinge module (14) may include a center portion (800). The center portion (800) may be coupled to the hinge cover (13) through screw fastening. The center portion (800) may be aligned corresponding to the center line (A) of the foldable electronic device (1). The center portion (800) may include a third display support surface (801) that supports a portion of the area corresponding between the first display support surface (310) of the first plate (31) and the second display support surface (320) of the second plate (32) in the third display area (153) (see FIG. 1) of the first display module (15) in the unfolded state of the foldable electronic device (1). In the unfolded state of the foldable electronic device (1), the first display support surface (310) of the first plate (31), the second display support surface (320) of the second plate (32), and the third display support surface (801) of the center portion (800) may be located (or included) on a virtual plane. The third display support surface (801) of the center portion (800) can reduce or prevent sagging or creasing in a portion of the third display area (153) (see FIG. 1) corresponding to the gap between the first display support surface (310) of the first plate (31) and the second display support surface (320) of the second plate (32) in the unfolded state of the foldable electronic device (1).

[0216] According to various embodiments, the hinge module (14) may include a support member (not separately shown). A first rotational support member (721), a second rotational support member (722), and a third rotational support member (723) included in the first bracket connection part (701) of the first hinge module (141) may be coupled to the support member and supported by the support member. A fourth rotational support member (724), a fifth rotational support member (725), and a sixth rotational support member (726) included in the second bracket connection part (702) of the second hinge module (142) may be coupled to the support member and supported by the support member. A center part (800) may be coupled to the support member and supported by the support member. The hinge cover (13) can be combined with a support member of the hinge module (14), and the hinge cover (13) can be implemented to stably position or support the support member.

[0217] According to various embodiments, a plurality of components included in the hinge module (14) may be implemented to have rigidity and durability. At least some of the plurality of components included in the hinge module (14) may be formed of a metallic material and / or a non-metallic material (e.g., engineering plastics).

[0218] FIG. 12 is a cross-sectional view of a portion of an unfolded foldable electronic device (1) cut along line E-E' of FIG. 9 according to various embodiments of the present disclosure.

[0219] FIG. 13 is a cross-sectional view of a part of a folded electronic device (1) in relation to FIG. 12, according to various embodiments of the present disclosure.

[0220] FIG. 14 is a cross-sectional view of a portion of an unfolded foldable electronic device (1) cut along line F-F' of FIG. 9 according to various embodiments of the present disclosure.

[0221] FIG. 15 is a cross-sectional view of a portion of a foldable electronic device (1) in a folded state in relation to FIG. 14, according to various embodiments of the present disclosure.

[0222] FIG. 16 is a cross-sectional view of a portion of a foldable electronic device (1) in an unfolded state, cut along line G-G' of FIG. 9, according to various embodiments of the present disclosure.

[0223] FIG. 17 is a cross-sectional view of a part of a folded electronic device (1) in relation to FIG. 16, according to various embodiments of the present disclosure.

[0224] FIG. 18 is a cross-sectional view of a portion of a foldable electronic device (1) in an unfolded state, cut along line H-H' of FIG. 9, according to various embodiments of the present disclosure.

[0225] FIG. 19 is a cross-sectional view of a part of a folded electronic device (1) in relation to FIG. 18, according to various embodiments of the present disclosure.

[0226] It is understood in the present disclosure that any combination of features and / or embodiments disclosed in connection with FIGS. 12, 13, 14, 15, 16, 17, 18, and 19 is conceived and included. Any combination of features described below in connection with FIGS. 12, 13, 14, 15, 16, 17, 18, and 19 may be considered to be included in the present disclosure as specific examples.

[0227] Referring to FIGS. 12, 13, 14, 15, 16, 17, 18, and 19, the foldable electronic device (1) may include a first frame (111) and a second frame (121). The foldable electronic device (1) may include a hinge cover (13). The foldable electronic device (1) may include a first hinge module (141). The foldable electronic device (1) may include a first plate (31) and a second plate (32). The first hinge module (141) may include a first bracket (610), and the first bracket (610) may include a first partial bracket (611) and a second partial bracket (612). The first hinge module (141) includes a second bracket (620), and the second bracket (620) may include a third part bracket (621) and a fourth part bracket (622). The first hinge module (141) may include a first part (e.g., a first arm) (711), a second part (e.g., a first rotate) (712), a third part (e.g., a second arm) (713), and a fourth part (e.g., a second rotate) (714). The first hinge module (141) may include a first shaft (741) and a second shaft (742). The first hinge module (141) may include a first rotation support (721). The first hinge module (141) may include a center portion (800). Descriptions of some components identical to those in the previous embodiment may not be repeated.

[0228] According to various embodiments, the first hinge module (141) may include a first rotational movement guide (RMG1) (see FIG. 6) for the first part (711). The first rotational movement guide (RMG1) (see FIG. 6) may include a first shaft (741), a second rotational support (722) (see FIG. 6), and a third rotational support (723) (see FIG. 6). The first part (711) may be rotated together with the first shaft (741) around the first rotation axis (C1) through the first rotational movement guide (RMG1).

[0229] According to various embodiments, the first hinge module (141) may include a third rotational movement guide (RMG3) for the first part (711). The third rotational movement guide (RMG3) may be configured so that the first part (711) and the first part bracket (611) fixed to the first frame (111) can rotate relative to each other through sliding. The third rotational movement guide (RMG3) may include a third rotational movement guide rail (GR3) and a third rotational movement slider (S3). The third rotational movement guide (RMG3) may provide (or form) a third rotation axis (C3) through which the first part (711) and the first part bracket (611) rotate relative to each other.

[0230] According to various embodiments, the first hinge module (141) may include a second rotational movement guide (RMG2) (see FIG. 6) for the second part (712). The second rotational movement guide (RMG2) (see FIG. 6) may be configured so that the second part (712) and the first rotational support (721) can rotate relative to each other through sliding. The second rotational movement guide (RMG2) (see FIG. 6) may provide (or form) a second rotation axis (C2) through which the second part (712) and the first rotational support (721) rotate relative to each other.

[0231] According to various embodiments, the first hinge module (141) may include a fourth rotational movement guide (RMG4) (see FIG. 6) for the second part (712). The fourth rotational movement guide (RMG4) (see FIG. 6) may be configured so that the second part (712) and the second part bracket (612) fixed to the first frame (111) can rotate relative to each other through sliding. The fourth rotational movement guide (RMG4) may provide (or form) a fourth rotation axis (C4) through which the second part (712) and the second part bracket (612) rotate relative to each other.

[0232] According to various embodiments, the first hinge module (141) may include a fifth rotational movement guide (RMG5) (see FIG. 6) for the third part (713). The fifth rotational movement guide (RMG5) (see FIG. 6) may include a second shaft (742), a second rotational support (722) (see FIG. 6), and a third rotational support (723) (see FIG. 6). The third part (713) may be rotated together with the second shaft (742) around the fifth rotation axis (C5) through the fifth rotational movement guide (RMG5).

[0233] According to various embodiments, the first hinge module (141) may include a seventh rotational movement guide (RMG7) for the third part (713). The seventh rotational movement guide (RMG7) may be configured so that the third part (713) and the third part bracket (621) fixed to the second frame (121) can rotate relative to each other through sliding. The seventh rotational movement guide (RMG7) may include a seventh rotational movement guide rail (GR7) and a seventh rotational movement slider (S7). The seventh rotational movement guide (RMG7) may provide (or form) a seventh rotation axis (C7) through which the third part (713) and the third part bracket (621) rotate relative to each other.

[0234] According to various embodiments, the first hinge module (141) may include a sixth rotational movement guide (RMG6) (see FIG. 6) for the fourth part (714). The sixth rotational movement guide (RMG6) (see FIG. 6) may be configured so that the fourth part (714) and the first rotational support (721) can rotate relative to each other through sliding. The sixth rotational movement guide (RMG6) (see FIG. 6) may provide (or form) a sixth rotation axis (C6) through which the fourth part (714) and the first rotational support (721) rotate relative to each other.

[0235] According to various embodiments, the first hinge module (141) may include an eighth rotational movement guide (RMG8) (see FIG. 6) for the fourth part (714). The eighth rotational movement guide (RMG8) (see FIG. 6) may be configured so that the fourth part (714) and the fourth part bracket (622) fixed to the second frame (121) can rotate relative to each other through sliding. The eighth rotational movement guide (RMG8) may provide (or form) an eighth rotation axis (C8) through which the fourth part (714) and the fourth part bracket (622) rotate relative to each other.

[0236] According to various embodiments, the radius of curvature (R4) at which the second part bracket (612) fixed to the second part (712) and the first frame (111) rotates mutually around the fourth rotation axis (C4) through sliding may be smaller than the radius of curvature (R3) at which the first part bracket (611) fixed to the first part (711) and the first frame (111) rotates mutually around the third rotation axis (C3) through sliding. The radius of curvature (R8) at which the fourth part bracket (622) fixed to the fourth part (714) and the second frame (121) rotates mutually around the eighth rotation axis (C8) through sliding may be smaller than the radius of curvature (R7) at which the third part bracket (621) fixed to the third part (713) and the second frame (121) rotates mutually around the seventh rotation axis (C7) through sliding. The radius of curvature (R4) at which the second part bracket (612) fixed to the second part (712) and the first frame (111) rotates mutually around the fourth rotation axis (C4) through sliding may be the same as the radius of curvature (R8) at which the fourth part bracket (622) fixed to the fourth part (714) and the second frame (121) rotates mutually around the eighth rotation axis (C8) through sliding. The radius of curvature (R3) at which the first part bracket (611) fixed to the first part (711) and the first frame (111) rotates mutually around the third rotation axis (C3) through sliding may be the same as the radius of curvature (R7) at which the third part bracket (621) fixed to the third part (713) and the second frame (121) rotates mutually around the seventh rotation axis (C7) through sliding.

[0237] According to various embodiments, the fourth rotational motion guide rail (GR4) (see FIG. 6) of the fourth rotational motion guide (RMG4) (see FIG. 6) may be formed in the second part (712) in a curved shape centered on the fourth rotation axis (C4). The fourth rotational motion guide rail (GR4) (see FIG. 6) may include a first guide rail (GR41) (see FIG. 14 and 15) and a second guide rail (GR42) (see FIG. 18 and 19) located on opposite sides in a direction parallel to the fourth rotation axis (C4). The second part (712) may include a first surface and a second surface located on opposite sides in a direction parallel to the fourth rotation axis (C4). A first guide rail (GR41) may be provided (or formed) by a first recess formed on a first surface, and a second guide rail (GR42) may be provided (or formed) by a second recess formed on a second surface. The first guide rail (GR41) may be understood as a first rail groove including a first recess, and the second guide rail (GR42) may be understood as a second rail groove including a second recess. The first guide rail (GR41) and the second guide rail (GR42) may be provided in substantially the same form on opposite sides. The first guide rail (GR41) may include a relatively thick first rail end (also referred to as the end of the first rail groove) (1411) (see FIG. 14 and 15) with respect to the fourth rotation axis (C4). The remaining portion (1412) of the first guide rail (GR41), excluding the first rail end (1411) (see FIG. 14 and 15), may be provided (or formed) with a thickness thinner than the first rail end (1411) with respect to the fourth rotation axis (C4).The first rail end (1411) (see FIG. 14 and 15) may be a portion of the first guide rail (GR41) located relatively close to (or adjacent to) the first display module (15) (see FIG. 4 and 5) (e.g., the back of the first display module (15)). The second guide rail (GR42) may include a second rail end (also referred to as the end of the second rail groove) (1421) (see FIG. 18 and 19) that is relatively thick with respect to the fourth rotation axis (C4). The remaining portion (1422) of the second guide rail (GR42) other than the second rail end (1421) (see FIG. 18 and 19) may be provided (or formed) with a thickness thinner than the second rail end (1421) with respect to the fourth rotation axis (C4). The second rail end (1421) (see FIG. 18 and 19) may be a part of the second guide rail (GR42) located relatively close (or adjacent to) the first display module (15) (see FIG. 4 and 5) (e.g., the back of the first display module (15)).

[0238] According to various embodiments, the second part bracket (612) may include a fourth rotational slider (S4) (see FIG. 6) located on a fourth rotational motion guide rail (GR4) of the second part (712). The fourth rotational motion slider (S4) of the second part bracket (612) may include a first slider (also referred to as the first rail part) (S41) (see FIG. 14 and 15) located on a first guide rail (GR41) included in the fourth rotational motion guide rail (GR4) of the second part (712). The fourth rotational motion slider (S4) of the second part bracket (612) may include a second slider (also referred to as the second rail part) (S42) (see FIG. 18 and 19) located on a second guide rail (GR42) included in the fourth rotational motion guide rail (GR4) of the second part (712). The first slider (S41) (see FIG. 14 and 15) and the second slider (S42) (see FIG. 18 and 19) may be formed in a curved shape around the fourth rotation axis (C4) and may be provided in substantially the same shape on opposite sides. The first slider (S41) may include a first slider end (also referred to as the end of the first rail part) (1511) (see FIG. 14 and 15) that is relatively thick with respect to the fourth rotation axis (C4). The remaining portion (1512) (see FIG. 14 and 15) of the first slider (S41), excluding the first slider end (1511), may be provided (or formed) with a thickness thinner than the first slider end (1511) with respect to the fourth rotation axis (C4). The first slider end (1511) (see FIG. 14 and 15) may be a portion of the first slider (S41) located relatively close (or adjacent to) the first display module (15) (see FIG. 4 and 5) (e.g., the back of the first display module (15)).The second slider (S42) may include a second slider end (also referred to as the end of the second rail portion) (1521) (see FIG. 18 and 19) that is relatively thick with respect to the fourth rotation axis (C4). The remaining portion (1522) (see FIG. 18 and 19) of the second slider (S42), excluding the second slider end (1521), may be provided (or formed) with a thickness thinner than that of the second slider end (1521) with respect to the fourth rotation axis (C4). The second slider end (1521) (see FIG. 18 and 19) may be a part of the second slider (S42) located relatively close (or adjacent to) the first display module (15) (see FIG. 4 and 5) (e.g., the back of the first display module (15)). The mutual rotation of the second part (712) and the second part bracket (612) around the fourth rotation axis (C4) can be substantially provided (or formed) through sliding between the remaining part (1412) of the first guide rail (GR41) other than the first rail end (1411) (see FIG. 14 and 15) and the remaining part (1512) of the first slider (S41) other than the first slider end (1511) (see FIG. 14 and 15), and sliding between the remaining part (1422) of the second guide rail (GR42) other than the second rail end (1421) (see FIG. 18 and 19) and the remaining part (1522) of the second slider (S42) other than the second slider end (1521) (see FIG. 18 and 19). In the unfolded state of the foldable electronic device (1), the first slider end (1511) of the first slider (S41) may be positioned at the first rail end (1411) of the first guide rail (GR41). In the unfolded state of the foldable electronic device (1), the second slider end (1521) of the second slider (S42) may be positioned at the second rail end (1421) of the second guide rail (GR42).In the unfolded state of the foldable electronic device (1), the first slider end (1511) of the first slider (S41) is positioned at the first rail end (1411) of the first guide rail (GR41), which can restrict rotation between the second part bracket (612) and the second part (712) that causes widening, so as to reduce or prevent widening (expanding or extension) of the first hinge module (141) between the second part (712) and the second part bracket (612) fixed to the first frame (111) due to external impact caused by reasons such as falling. In the unfolded state of the foldable electronic device (1), the second slider end (1521) of the second slider (S42) is positioned at the second rail end (1421) of the second guide rail (GR42), which can restrict rotation between the second part bracket (612) and the second part (712) that causes the opening, so as to reduce or prevent the opening of the first hinge module (141) between the second part (712) and the second part bracket (612) fixed to the first frame (111) due to external impact caused by reasons such as falling. In the unfolded state of the foldable electronic device (1), the first slider end (1511) of the first slider (S41) is positioned at the first rail end (1411) of the first guide rail (GR41), which can reduce or prevent the opening of the first hinge module (141) between the second part (712) and the second part bracket (612) fixed to the first frame (111) due to external impact, thereby reducing or preventing damage to the flexible display module (15) (e.g., the third display area (153) of the flexible display module (15)) (see FIG. 1).In the unfolded state of the foldable electronic device (1), the second slider end (1521) of the second slider (S42) is positioned at the second rail end (1421) of the second guide rail (GR42), which can reduce or prevent the opening of the first hinge module (141) between the second part (712) and the second part bracket (612) fixed to the first frame (111) due to external impact, thereby reducing or preventing damage to the flexible display module (15) (e.g., the third display area (153) of the flexible display module (15)) (see FIG. 1). The first rail end (1411) of the first guide rail (GR41) and the first slider end (1511) of the first slider (S41), and / or the second rail end (1421) of the second guide rail (GR42) and the second slider end (1521) of the second slider (S42) can be understood as the first stopper (also referred to as the first stopper structure) of the first hinge module (141).

[0239] In the present disclosure, the opening of the first hinge module (141) due to an external impact in the unfolded state of the foldable electronic device (1) can be understood as a change in the relative position between the first frame (111) and the second frame (121) such that a tensile force is applied to the third display area (153) (see FIG. 1) of the flexible display module (15) due to a change in the relative position between the components included in the first hinge module (141) (e.g., rotation displacement).

[0240] According to various embodiments, the eighth rotational motion guide rail (GR8) (see FIG. 6) of the eighth rotational motion guide (RMG8) (see FIG. 6) may be formed in the fourth part (714) in a curved shape centered on the eighth rotation axis (C8). The eighth rotational motion guide rail (GR8) (see FIG. 6) may include a third guide rail (GR81) (see FIG. 14 and 15) and a fourth guide rail (GR82) (see FIG. 18 and 19) located on opposite sides in a direction parallel to the eighth rotation axis (C8). The fourth part (714) may include a third surface and a fourth surface located on opposite sides in a direction parallel to the eighth rotation axis (C8). A third guide rail (GR81) may be provided (or formed) by a third recess formed on a third face, and a fourth guide rail (GR82) may be provided (or formed) by a fourth recess formed on a fourth face. The third guide rail (GR81) may be understood as a third rail groove containing a third recess, and the fourth guide rail (GR82) may be understood as a fourth rail groove containing a fourth recess. The third guide rail (GR81) and the fourth guide rail (GR82) may be provided in substantially the same form on opposite sides. The third guide rail (GR81) may include a relatively thick third rail end (also referred to as the end of the third rail groove) (1811) (see FIG. 14 and 15) with respect to the eighth rotation axis (C8). The remaining portion (1812) of the third guide rail (GR81), excluding the third rail end (1811) (see FIG. 14 and 15), may be provided (or formed) with a thickness thinner than the third rail end (1811) with respect to the eighth rotation axis (C8).The third rail end (1811) (see FIG. 14 and 15) may be a portion of the third guide rail (GR81) located relatively close to (or adjacent to) the first display module (15) (see FIG. 4 and 5) (e.g., the back of the first display module (15)). The fourth guide rail (GR82) may include a fourth rail end (also referred to as the end of the fourth rail groove) (1821) (see FIG. 18 and 19) that is relatively thick with respect to the eighth rotation axis (C8). The remaining portion (1822) of the fourth guide rail (GR82) other than the fourth rail end (1821) (see FIG. 18 and 19) may be provided (or formed) with a thickness thinner than the fourth rail end (1821) with respect to the eighth rotation axis (C8). The fourth rail end (1821) (see FIG. 18 and 19) may be a part of the fourth guide rail (GR82) located relatively close (or adjacent to) the first display module (15) (see FIG. 4 and 5) (e.g., the back of the first display module (15)).

[0241] According to various embodiments, the fourth part bracket (622) may include an eighth rotational motion slider (S8) (see FIG. 6) located on the eighth rotational motion guide rail (GR8) of the fourth part (714). The eighth rotational motion slider (S8) of the fourth part bracket (622) may include a third slider (also referred to as the third rail part) (S81) (see FIG. 14 and 15) located on the third guide rail (GR81) included in the eighth rotational motion guide rail (GR8) of the fourth part (714). The eighth rotational motion slider (S8) of the fourth part bracket (622) may include a fourth slider (also referred to as the fourth rail part) (S82) (see FIG. 18 and 19) located on the fourth guide rail (GR82) included in the eighth rotational motion guide rail (GR8) of the fourth part (714). The third slider (S81) (see FIG. 14 and 15) and the second slider (S82) (see FIG. 18 and 19) may be formed in a curved shape around the eighth rotation axis (C8) and may be provided in substantially the same shape on opposite sides. The third slider (S81) may include a third slider end (also referred to as the end of the third rail part) (1911) (see FIG. 14 and 15) that is relatively thick with respect to the eighth rotation axis (C8). The remaining portion (1912) of the third slider (S81), excluding the third slider end (1911) (see FIG. 14 and 15), may be provided (or formed) with a thinner thickness than the third slider end (1911) with respect to the eighth rotation axis (C8). The third slider end (1911) (see FIG. 14 and 15) may be a portion of the third slider (S81) located relatively close (or adjacent to) the first display module (15) (see FIG. 4 and 5) (e.g., the back of the first display module (15)).The fourth slider (S82) may include a fourth slider end (also referred to as the end of the fourth rail portion) (1921) (see FIG. 18 and 19) that is relatively thick with respect to the eighth rotation axis (C8). The remaining portion (1922) (see FIG. 18 and 19) of the fourth slider (S82), excluding the fourth slider end (1921), may be provided (or formed) with a thickness thinner than that of the fourth slider end (1921) with respect to the eighth rotation axis (C8). The fourth slider end (1921) (see FIG. 18 and 19) may be a part of the fourth slider (S82) located relatively close (or adjacent to) the first display module (15) (see FIG. 4 and 5) (e.g., the back of the first display module (15)). The mutual rotation of the fourth part (714) and the fourth part bracket (622) around the eighth rotation axis (C8) can be substantially provided (or formed) through sliding between the remaining part (1812) of the third guide rail (GR81) other than the third rail end (1811) (see FIG. 14 and 15) and the remaining part (1912) of the third slider (S81) other than the third slider end (1911) (see FIG. 14 and 15), and sliding between the remaining part (1822) of the fourth guide rail (GR82) other than the fourth rail end (1821) (see FIG. 18 and 19) and the remaining part (1922) of the fourth slider (S82) other than the fourth slider end (1921) (see FIG. 18 and 19). In the unfolded state of the foldable electronic device (1), the third slider end (1911) of the third slider (S81) may be positioned at the third rail end (1811) of the third guide rail (GR81). In the unfolded state of the foldable electronic device (1), the fourth slider end (1921) of the fourth slider (S82) may be positioned at the fourth rail end (1821) of the fourth guide rail (GR82).In the unfolded state of the foldable electronic device (1), the third slider end (1911) of the third slider (S81) is positioned at the third rail end (1811) of the third guide rail (GR81), which can restrict rotation between the fourth part bracket (622) and the fourth part (714) that causes the opening, so as to reduce or prevent the opening of the first hinge module (141) between the fourth part (714) and the fourth part bracket (622) fixed to the second frame (121) due to external impact caused by reasons such as falling. In the unfolded state of the foldable electronic device (1), the fourth slider end (1921) of the fourth slider (S82) is positioned at the fourth rail end (1821) of the fourth guide rail (GR82), which can restrict rotation between the fourth part bracket (622) and the fourth part (714) that causes the opening, so as to reduce or prevent the opening of the first hinge module (141) between the fourth part (714) and the fourth part bracket (622) fixed to the second frame (121) due to external impact caused by reasons such as falling. In the unfolded state of the foldable electronic device (1), the third slider end (1911) of the third slider (S81) is positioned at the third rail end (1811) of the third guide rail (GR81), which can reduce or prevent the opening of the first hinge module (141) between the fourth part (714) and the fourth part bracket (622) fixed to the second frame (121) due to external impact, thereby reducing or preventing damage to the flexible display module (15) (e.g., the third display area (153) of the flexible display module (15)) (see FIG. 1).In the unfolded state of the foldable electronic device (1), the fourth slider end (1921) of the fourth slider (S82) is positioned at the fourth rail end (1821) of the fourth guide rail (GR82), which can reduce or prevent the opening of the first hinge module (141) between the fourth part (714) and the fourth part bracket (622) fixed to the second frame (121) due to external impact, thereby reducing or preventing damage to the flexible display module (15) (e.g., the third display area (153) of the flexible display module (15)) (see FIG. 1). The third rail end (1811) of the third guide rail (GR81) and the third slider end (1911) of the third slider (S81), and / or the fourth rail end (1821) of the fourth guide rail (GR82) and the fourth slider end (1921) of the fourth slider (S82) can be understood as the second stopper (also referred to as the second stopper structure) of the first hinge module (141).

[0242] According to various embodiments, due to the relative positions between the first rotation axis (C1), the second rotation axis (C2), the third rotation axis (C3), and the fourth rotation axis (C4), the radius of curvature at which the first part (711) and the first part bracket (611) rotate mutually through sliding around the third rotation axis (C3), and the radius of curvature at which the second part (712) and the second part bracket (612) rotate mutually through sliding around the fourth rotation axis (C4), the likelihood of the first hinge module (141) spreading out due to external impact may be relatively higher in the fourth rotational movement guide (RMG4) (see FIG. 6) and the eighth rotational movement guide (RMG8) (see FIG. 6) than in the third rotational movement guide (RMG3) and the seventh rotational movement guide (RMG7). For this reason, it may be advantageous to position the first stopper on the fourth rotational movement guide (RMG4) (see FIG. 6) and form the second stopper on the eighth rotational movement guide (RMG8) (see FIG. 6) to reduce or prevent the opening of the first hinge module (141) due to external impact.

[0243] According to various embodiments, although not separately illustrated, the third rotary motion guide (RMG3) may include a stopper configured to reduce or prevent the opening of the first hinge module (141) between the first part (711) and the first part bracket (611) fixed to the first frame (111) due to external impact. The stopper may be implemented substantially identical or at least similar to the first stopper included in the fourth rotary motion guide (RMG4).

[0244] According to various embodiments, although not separately illustrated, the seventh rotary motion guide (RMG7) may include a stopper configured to reduce or prevent the opening of the first hinge module (141) between the third part (713) and the third part bracket (621) fixed to the second frame (121) due to external impact. The stopper may be implemented substantially identical or at least similar to the second stopper included in the eighth rotary motion guide (RMG8).

[0245] According to various embodiments, in order to reduce or prevent the opening of the first hinge module (141) due to external impact in the unfolded state of the foldable electronic device (1), a part (1711) of the second part (712) (e.g., the first protrusion) (see FIG. 16 and 17) and a part (1712) of the first frame (111) (see FIG. 16 and 17) may be configured to come into contact with each other to interfere with the movement between the second part (712) and the first frame (111).

[0246] According to various embodiments, in order to reduce or prevent the opening of the first hinge module (141) due to external impact in the unfolded state of the foldable electronic device (1), a part (1721) of the fourth part (714) (e.g., the second protrusion) (see FIG. 16 and 17) and a part (1722) of the second frame (121) (see FIG. 16 and 17) may be configured to come into contact with each other to interfere with the movement between the fourth part (714) and the second frame (121).

[0247] According to various embodiments, in order to reduce or prevent the angle between the first frame (111) and the second frame (121) from being formed to be greater than about 180 degrees, and / or to reduce or prevent the first frame (111) from being rotated to be greater than about 180 degrees relative to the first rotational support (721), a part (1611) of the second part (712) (see FIG. 14 and 15) and a part (1612) of the first rotational support (721) (see FIG. 14 and 15) may be configured to come into contact with each other to interfere with the movement between the second part (712) and the first rotational support (721). Reducing or preventing the angle between the first frame (111) and the second frame (121) from being formed to be greater than about 180 degrees, and / or reducing or preventing the first frame (111) from being rotated to be greater than about 180 degrees relative to the first rotational support (721), can reduce or prevent damage to the flexible display module (15) (e.g., the third display area (153) of the flexible display module (15)) (see FIG. 1).

[0248] According to various embodiments, in order to reduce or prevent the angle between the first frame (111) and the second frame (121) from being formed to be greater than about 180 degrees, and / or to reduce or prevent the second frame (121) from being rotated to be greater than about 180 degrees relative to the first rotational support (721), a part (1621) of the fourth part (714) (see FIG. 18 and 19) and a part (1622) of the first rotational support (721) (see FIG. 18 and 19) may be configured to come into contact with each other to interfere with the movement between the fourth part (714) and the first rotational support (721). Reducing or preventing the angle between the first frame (111) and the second frame (121) from being formed at an angle exceeding about 180 degrees, and / or reducing or preventing the second frame (121) from being rotated at an angle exceeding about 180 degrees relative to the first rotational support (721), can reduce or prevent damage to the flexible display module (15) (e.g., the third display area (153) of the flexible display module (15)) (see FIG. 1).

[0249] According to various embodiments, the second hinge module (142) (see FIG. 9) may be implemented substantially identical to or at least partially similar to the first hinge module (141) so as to reduce or prevent the opening of the second hinge module (142) due to external impact in the unfolded state of the foldable electronic device (1). The second hinge module (142) (see FIG. 9) may be implemented substantially identical to or at least partially similar to the first hinge module (141) so as to reduce or prevent the angle between the first frame (111) and the second frame (121) from being formed to exceed about 180 degrees.

[0250] FIG. 20 is a perspective view of a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0251] FIG. 21 is a drawing showing a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0252] FIG. 22 is a drawing showing a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0253] FIG. 23 is a drawing showing a part of a folded foldable electronic device (1) according to various embodiments of the present disclosure.

[0254] It may be understood in the present disclosure to conceive and include all combinations of features and / or embodiments disclosed in connection with FIGS. 20, 21, 22, and 23. All combinations of features described below in connection with FIGS. 20, 21, 22, and 23 may be considered to be included in the present disclosure as specific examples.

[0255] Referring to FIGS. 20, 21, 22, and 23, the foldable electronic device (1) may include a first rotational support (721), a second part (712), and a fourth part (714). The second part (712) may be connected to the first rotational support (721) so as to be rotatable via sliding relative to the first rotational support (721). The fourth part (714) may be connected to the first rotational support (721) so as to be rotatable via sliding relative to the first rotational support (721).

[0256] According to various embodiments, the second part (712) may include a first structural part (2010) and a second structural part (2020) extending from the first structural part (2010). The first structural part (2010) may be connected to the first rotating support part (721) so as to be rotatable via sliding with respect to the first rotating support part (721). The second structural part (2020) may be connected to the second part bracket (612) (see FIG. 6) so as to be rotatable via sliding with respect to the second part bracket (612) (see FIG. 6). The second structural part (2020) may include a first guide rail (GR41) and a second guide rail (GR42). The first guide rail (GR41) may include a first rail end (1411). The second guide rail (GR42) may include a second rail end (1421). The second structural part (2020) may include a first screw hole (2021) for screw fastening with the first plate (31) (see FIG. 6).

[0257] According to various embodiments, the fourth part (714) may include a sixth structural part (2030) and a seventh structural part (2040) extending from the sixth structural part (2030). The sixth structural part (2030) may be connected to the first rotating support part (721) so as to be rotatable via sliding with respect to the first rotating support part (721). The seventh structural part (2040) may be connected to the fourth part bracket (622) (see FIG. 6) so as to be rotatable via sliding with respect to the fourth part bracket (622) (see FIG. 6). The seventh structural part (2040) may include a third guide rail (GR81) and a fourth guide rail (GR82). The third guide rail (GR81) may include a third rail end (1811). The fourth guide rail (GR82) may include a fourth rail end (1821). The seventh structural part (2040) may include a second screw hole (2041) for screw fastening with the second plate (32) (see FIG. 6).

[0258] According to various embodiments, in order to reduce or prevent the opening of the first hinge module (141) (see FIG. 9) due to external impact in the unfolded state of the foldable electronic device (1), the second part (712) and a part (2100) of the first rotational support (721) may be configured to come into contact with each other to interfere with the movement between the second part (712) and the first rotational support (721).

[0259] FIG. 24 is a perspective view of a second part (712) according to various embodiments of the present disclosure.

[0260] FIG. 25 is a perspective view of a second part bracket (612) according to various embodiments of the present disclosure.

[0261] FIG. 26 is a perspective view showing the connection of the second part (712) and the second part bracket (612) according to various embodiments of the present disclosure.

[0262] FIG. 27 is a drawing showing a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0263] FIG. 28 is a perspective view of a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0264] It may be understood in the present disclosure to conceive and include all combinations of features and / or embodiments disclosed in connection with FIGS. 24, 25, 26, 27, and 28. All combinations of features described below in connection with FIGS. 24, 25, 26, 27, and 28 may be considered to be included in the present disclosure as specific examples.

[0265] Referring to FIGS. 24, 25, 26, 27, and 28, the second part (712) may include a first structural part (2010) and a second structural part (2020). The first structural part (2010) may be connected to the first rotating support part (721) (see FIG. 6) so as to be rotatable via sliding with respect to the first rotating support part (721) (see FIG. 6). The second structural part (2020) may be connected to the second part bracket (612) so as to be rotatable via sliding with respect to the second part bracket (612).

[0266] According to various embodiments, the second structural part (2020) of the second part (712) may include a first guide rail (GR41) and a second guide rail (GR42). The first guide rail (GR41) and the second guide rail (GR42) may be formed in a curved shape centered on a fourth rotation axis (C4) (see FIG. 23). The first guide rail (GR41) may include a first rail end (1411) that is relatively thick with respect to the fourth rotation axis (C4). The second guide rail (GR42) (see FIG. 18 and 19) may include a second rail end (1421) that is relatively thick with respect to the fourth rotation axis (C4).

[0267] According to various embodiments, the second structural part (2020) of the second part (712) may be combined with the first plate (31) (see FIG. 6). The second structural part (2020) may include a screw fastening part (2021) for screw fastening to the first plate (31) (see FIG. 6).

[0268] According to various embodiments, the second part bracket (612) may include a first slider (S41) positioned on the first guide rail (GR41) of the second part (712). The second part bracket (612) may include a second slider (S42) positioned on the second guide rail (GR42) of the second part (712). The first slider (S41) and the second slider (S42) may be formed in a curved shape centered on the fourth rotation axis (C4) and may be provided in substantially the same shape on opposite sides. The first slider (S41) may include a first slider end (1511) that is relatively thick with respect to the fourth rotation axis (C4). The second slider (S42) may include a second slider end (1521) that is relatively thick with respect to the fourth rotation axis (C4). The second part bracket (612) may include a third structural part (2410) including a first slider (S41) and a fourth structural part (2420) including a second slider (S42). The third structural part (2410) and the fourth structural part (2420) are separated from each other in a direction parallel to the fourth rotation axis (C4), and the second part bracket (612) may include a fifth structural part (also called a connecting part or bridge) (2430) extending the third structural part (2410) and the fourth structural part (2420). The third structural part (2410) and the fourth structural part (2420) may be coupled to the first frame (111) (see FIG. 8). The third structural part (2410) may include an overlapping part that overlaps with a part of the first part bracket (611) (see FIG. 9), and the overlapping part may include a third screw hole (2411) configured to be combined with the first frame (111) (see FIG. 8) together with the first part bracket (611) (see FIG. 9) through screw fastening.The fourth structural part (2420) may include a fourth screw hole (2421) configured to be joined to the first frame (111) (see FIG. 8) through screw fastening.

[0269] According to various embodiments, with reference to FIG. 26, due to the sliding treatment of the first guide rail (GR41) and the first slider (S41), and the sliding treatment of the second guide rail (GR42) and the second slider (S42), the second part (712) and the second part bracket (612) can be assembled in a rotational manner. The second structural part (2020) of the second part (712) can be positioned between the third structural part (2410) and the fourth structural part (2420) of the second part bracket (612). Due to the first rail end (1411) of the first guide rail (GR41) and the first slider end (1511) of the first slider (S41), and the second rail end (1421) of the second guide rail (GR42) and the second slider end (1521) of the second slider (S42), the second part (712) and the second part bracket (612) can be assembled with unidirectional rotation.

[0270] According to various embodiments, the fifth structural part (2430) of the second part bracket (612) may be positioned so as not to interfere with the rotation of the second part (712) relative to the second part bracket (612) during the transition between the unfolded state and the folded state of the foldable electronic device (1). For example, when viewed from above on the front of the foldable electronic device (1) in the unfolded state (or in a direction orthogonal to the first back cover (112) (see FIG. 1) of the foldable electronic device (1) in the unfolded state), the fifth structural part (2430) of the second part bracket (612) may be located on the opposite side from the center line (A) (see FIG. 1) or the first rotational support part (721) (see FIG. 21), with the first slider end (1511) of the first slider (S41) and the second slider end (1521) of the second slider (S42) in between. When viewed from above on the front of the foldable electronic device (1) in the unfolded state (or in a direction orthogonal to the first back cover (112) (see FIG. 1) of the foldable electronic device (1) in the unfolded state), the first The first slider end (1511) of the slider (S41) and the second slider end (1521) of the second slider (S42) may be positioned between the center line (A) (see FIG. 1) of the foldable electronic device (1) (or the first rotational support (721)) and the fifth structural part (2430) of the second part bracket (612).

[0271] According to various embodiments, the first slider (S41) extends from the first slider end (1511) between the fifth structural part (2430) of the second part bracket (612) and the first support plate (1111), and the other end of the first slider (S41) may overlap with the fifth structural part (2430) in a direction orthogonal to the first back cover (112) (see FIG. 1). The second slider (S42) extends from the second slider end (1521) between the fifth structural part (2430) of the second part bracket (612) and the first support plate (1111), and the other end of the second slider (S42) may overlap with the fifth structural part (2430) in a direction orthogonal to the first back cover (112) (see FIG. 1).

[0272] According to various embodiments, the second bracket (612) may be implemented in such a way that the first bracket portion and the second bracket portion are joined together. The first bracket portion may be provided (or formed) in a form including a third structural portion (2410) and a part (2431) of a fifth structural portion (2430) extending from the third structural portion (2410). The second bracket portion may be provided (or formed) in a form including a fourth structural portion (2420) and a part (2432) of a fifth structural portion (2430) extending from the fourth structural portion (2420). The first bracket portion and the second bracket portion may be joined by welding, but are not limited thereto. A method of connecting the second part (712) and the second part bracket (612) may include a first action of placing the first bracket part on one side of the second part (712) and placing the second bracket part on the other side of the second part (712), and a second action of combining the first bracket part and the second bracket part.

[0273] According to various embodiments, the combination of the fourth part (714) (see FIG. 6) and the fourth part bracket (622) (see FIG. 6) may be provided (or formed) in a manner substantially identical or at least partially similar to the combination of the second part (712) and the second part bracket (612) according to the examples of FIG. 24, 25, 26, 27, and 28.

[0274] FIG. 29 is a drawing showing a part of a foldable electronic device (1) according to various embodiments of the present disclosure.

[0275] FIG. 30 is a perspective view of a part of a foldable electronic device (1) according to various embodiments of the present disclosure.

[0276] FIG. 31 is a perspective view of a part of a foldable electronic device (1) according to various embodiments of the present disclosure.

[0277] It may be understood from the present disclosure to conceive and include all combinations of features and / or embodiments disclosed in connection with FIGS. 29, 30, and 31. All combinations of features described below in connection with FIGS. 29, 30, and 31 may be considered to be included in the present disclosure as specific examples.

[0278] Referring to FIGS. 29, 30, and 31, the foldable electronic device (1) may include a first frame (111) and a second part bracket (612) coupled to the first frame (111). The first frame (111) may include a first support plate (1111) and a first side member (1112). The second part bracket (612) may include a third structural part (2410), a fourth structural part (2420), and a fifth structural part (2430). The third structural part (2410) may include a first slider (S41). The first slider (S41) may include a first slider end (1511). The third structural part (2410) may include a third screw hole (2411). The fourth structural part (2420) may include a second slider (S42). The second slider (S42) may include a second slider end (1521). The fourth structural part (2420) may include a fourth screw hole (2421). Descriptions of some components identical to those in the preceding embodiment may not be repeated.

[0279] According to various embodiments, with reference to FIG. 30, the second part bracket (612) may include a slider structure (2900) including a second slider (S42). There may be a space (e.g., a gap) between the slider structure (2900) and the first support plate (1111) of the first frame (111) in a direction orthogonal to the first back cover (112) (see FIG. 1).

[0280] According to various embodiments, with reference to FIG. 31, in order to reinforce the rigidity of the second part bracket (612), the first support plate (1111) of the first frame (111) may include a protrusion (3100) configured to support the slider structure (2900) of the second part bracket (612). The protrusion (3100) may be positioned in a space where the slider structure (2900) and the first support plate (1111) of the first frame (111) are spaced apart from each other in a direction orthogonal to the first back cover (112) (see FIG. 1). The protrusion (3100) can reinforce the rigidity of the second part bracket (612) which is insufficient with only the fifth structure (2430) extending the third structure (2410) and the fourth structure (2420). The configuration of the first frame (111) to reinforce the rigidity of the second part bracket (612) is not limited to the illustrated example.

[0281] FIG. 32 is a perspective view of a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0282] It may be understood in this disclosure that any combination of features and / or embodiments disclosed in connection with FIG. 32 is conceived and included. Any combination of features described below in connection with FIG. 32 may be considered to be included in this disclosure as specific examples.

[0283] Referring to FIG. 32, the foldable electronic device (1) may include a first bracket (610), a first part (711), and a second part (712). In various embodiments, the first bracket (610) may be provided (or formed) as an integral or single structure (e.g., a single continuous structure or a complete structure) replacing the first part bracket (611) (see FIG. 6) and the second part bracket (612). The first part (711) may be connected to the first bracket (610) so as to be rotatable about a third rotation axis (C3) (see FIG. 9) by sliding relative to the first bracket (610). The second part (712) may be connected to the first bracket (610) so as to be rotatable about a fourth rotation axis (C4) (see FIG. 9) by sliding relative to the first bracket (610).

[0284] According to various embodiments, although not separately illustrated, the second bracket (620) (see FIG. 6) may be provided (or formed) as an integral or single structure (e.g., a single continuous structure or a complete structure) replacing the third part bracket (621) (see FIG. 6) and the fourth part bracket (622) (see FIG. 6).

[0285] FIG. 33 is a drawing showing a part of a foldable electronic device (1) according to various embodiments of the present disclosure.

[0286] It may be understood in this disclosure that any combination of features and / or embodiments disclosed in connection with FIG. 33 is conceived and included. Any combination of features described below in connection with FIG. 33 may be considered to be included in this disclosure as specific examples.

[0287] Referring to FIG. 33, the foldable electronic device (1) may include a first frame (111) and a support member (3300). The first frame (111) may include a first support plate (1111) and a first side member (1112). The support member (3300) may be coupled to the first support plate (1111). The support member (3300) may be coupled to the first support plate (1111) by welding, but is not limited thereto.

[0288] According to various embodiments, in order to reduce or prevent the opening of the first hinge module (141) (see FIG. 9) due to external impact in the unfolded state of the foldable electronic device (1), the support member (3300) and the second part (712) (see FIG. 24) may be configured to come into contact with each other to interfere with the movement between the second part (712) (see FIG. 24) and the second part bracket (612) (see FIG. 25). Referring to FIG. 26, since the second part (712) and the second part bracket (612) are assembled by unidirectional rotation, the second part bracket (612) may be implemented to include a support member that replaces the support member (3300), or in a comparative example where the support member (3300) is coupled to the second part bracket (612), the support member may make it difficult to assemble the second part (712) and the second part bracket (612) by unidirectional rotation. For this reason, the support member (3300) may be coupled to the first frame (111).

[0289] FIG. 34 is a drawing showing a part of a foldable electronic device (1) in an unfolded state according to various embodiments of the present disclosure.

[0290] It may be understood in this disclosure that any combination of features and / or embodiments disclosed in connection with FIG. 34 is conceived and included. Any combination of features described below in connection with FIG. 34 may be considered to be included in this disclosure as specific examples.

[0291] Referring to FIG. 34, the foldable electronic device (1) may include a second part (712) and a second part bracket (612). The second part (712) and the second part bracket (612) may be connected to each other so as to rotate mutually about a fourth rotation axis (C4). The fourth rotation axis (C4) may be located in the second part (712) (e.g., inside the second part (712)) and the second part bracket (612) (e.g., inside the second part bracket (612)).

[0292] According to various embodiments, a stopper, which is not separately illustrated but described with reference to FIG. 14 and 15, may be formed between the second part (712) and the second part bracket (612).

[0293] According to various embodiments of the present disclosure, a foldable electronic device (e.g., foldable electronic device (1)) comprises a first housing (e.g., first housing (11)) and a second housing (e.g., second housing (12)). The foldable electronic device comprises a hinge module (e.g., hinge module (14)) that rotatably connects the first housing and the second housing. The hinge module comprises a first part (e.g., first part (711)) configured to be rotatably about a first rotation axis (e.g., first rotation axis (C1)). The hinge module comprises a second part (e.g., second part (712)) configured to be rotatably about a second rotation axis (e.g., second rotation axis (C2)) parallel to the first rotation axis. The hinge module comprises a first bracket (e.g., first bracket (610)) that is fixed to the first housing and connected to the first part and the second part. The first part and the first bracket are rotatably connected around a third rotation axis (e.g., third rotation axis (C3)) parallel to the first rotation axis. The second part and the first bracket are rotatably connected around a fourth rotation axis (e.g., fourth rotation axis (C4)) parallel to the second rotation axis through sliding between the second part and the first bracket. One of the second part and the first bracket includes a first guide rail (e.g., first guide rail (GR41) and second guide rail (GR42)), and the other includes a first slider (e.g., first slider (S41) and second slider (S42)) slidably positioned on the first guide rail. The first guide rail includes a first rail end (e.g., first rail end (1411) and second rail end (1421)) that is relatively thick with respect to the fourth rotation axis. The first slider includes a first slider end (e.g., a first slider end (1511) and a second slider end (1521)) that is relatively thick with respect to the fourth rotation axis.In the unfolded state of the foldable electronic device, the first slider end is configured to be positioned at the first rail end.

[0294] According to various embodiments of the present disclosure, a first part (e.g., first part (711)) and a first bracket (e.g., first bracket (610)) may be rotatably connected around a third rotation axis (e.g., third rotation axis (C3)) through sliding between the first part and the first bracket. The radius of curvature at which the second part (e.g., second part (712)) and the first bracket rotate and slide relative to each other around a fourth rotation axis (e.g., fourth rotation axis (C4)) may be smaller than the radius of curvature at which the first part and the first bracket rotate and slide relative to each other around a third rotation axis (e.g., third rotation axis (C3)).

[0295] According to various embodiments of the present disclosure, a foldable electronic device (e.g., foldable electronic device (1)) may include a hinge cover (e.g., hinge cover (13)) coupled to a hinge module (e.g., hinge module (14)). The hinge module may include a rotational support (e.g., a first rotational support (721)) coupled to the hinge cover. A second part (e.g., a second part (712)) may include a first structural part (e.g., a first structural part (2010)) connected to the rotational support so as to be rotatable about a second rotation axis (e.g., a second rotation axis (C2)) with respect to the rotational support. The second part may include a second structural part (e.g., a second structural part (2020)) extending from the first structural part. The second structural member can be connected to the first bracket (e.g., the first bracket (610)) so as to be rotatable about a fourth rotation axis (e.g., the fourth rotation axis (C4)).

[0296] According to various embodiments of the present disclosure, so that the first housing (e.g., the first housing (11)) is not rotated more than about 180 degrees with respect to the rotational support (e.g., the first rotational support (721)), a part (e.g., part (1611)) of the second part (e.g., the second part (712)) and a part (e.g., part (1612)) of the rotational support (e.g., the rotational support (721)) may be configured to come into contact with each other to form rotational interference.

[0297] According to various embodiments of the present disclosure, a first bracket (e.g., first bracket (610)) may include a third structural member (e.g., third structural member (2410)) coupled to a first housing (e.g., first housing (11)). The first bracket may include a fourth structural member (e.g., fourth structural member (2420)) spaced apart from the third structural member in a direction parallel to a fourth rotation axis (e.g., fourth rotation axis (C4)), and the fourth structural member may be coupled to the first housing. The first bracket may include a fifth structural member (e.g., fifth structural member (2430)) extending the third structural member and the fourth structural member. The second structural part (e.g., second structural part (2020)) of the second part (e.g., second part (712)) is located between the third structural part and the fourth structural part of the first bracket and may include a first guide rail (e.g., first guide rail (GR41) and second guide rail (GR42)). The third structural part and the fourth structural part of the first bracket may include a first slider (e.g., first slider (S41) and second slider (S42)).

[0298] According to various embodiments of the present disclosure, a first housing (e.g., first housing (11)) may include a support plate (e.g., first support plate (1111)) and a back cover (e.g., first back cover (112)) located within the first housing. A first bracket (e.g., first bracket (610)) of a hinge module (e.g., hinge module (14)) may be coupled to the support plate of the first housing. In the unfolded state of a foldable electronic device (e.g., foldable electronic device (1)), when viewed in a direction orthogonal to the back cover, a first rail end (e.g., first rail end (1411) and a second rail end (1421)) may be located between a rotational support (e.g., first rotational support (721)) and a fifth structural part of the first bracket (e.g., fifth structural part (2430)).

[0299] According to various embodiments of the present disclosure, a first bracket (e.g., first bracket (610)) may include a slider structure (e.g., slider structure (2900)) comprising a first slider (e.g., first slider (S41) and a second slider (S42)). There may be a space between the slider structure and a support plate (e.g., first support plate (1111)) in a direction orthogonal to a back cover (e.g., first back cover (112)). The support plate may include a protrusion (e.g., protrusion (3100)) configured to be positioned in the space and to support the slider structure.

[0300] According to various embodiments of the present disclosure, a first slider (e.g., first slider (S41) and second slider (S42)) may extend from a first slider end (e.g., first slider end (1511) and second slider end (1521)) to between a fifth structural part (e.g., fifth structural part (2430)) of a first bracket (e.g., first bracket (610)) and a support plate (e.g., first support plate (1111)) of a first housing (e.g., first housing (11)). The other end of the first slider may overlap with the fifth structural part of the first bracket in a direction orthogonal to the back cover (e.g., first back cover (112)).

[0301] According to various embodiments of the present disclosure, a first bracket (e.g., first bracket (610)) may include a first part bracket (e.g., first part bracket (611)) connected to the first part rotatably about a third rotation axis (e.g., third rotation axis (C3)) with respect to the first part (e.g., first part (711)). The first bracket may include a second part bracket (e.g., second part bracket (612)) connected to the second part rotatably about a fourth rotation axis (e.g., fourth rotation axis (C4)) with respect to the second part (e.g., second part (712)).

[0302] According to various embodiments of the present disclosure, a first housing (e.g., first housing (11)) may include a support plate (e.g., first support plate (1111)) and a back cover (e.g., first back cover (112)) located within the first housing. A first bracket (e.g., first bracket (610)) of a hinge module (e.g., hinge module (14)) may be coupled to the support plate of the first housing. In the unfolded state of the foldable electronic device (e.g., foldable electronic device (1)), when viewed in a direction orthogonal to the back cover, the first rotation axis (e.g., first rotation axis (C1)) is located between the second rotation axis (e.g., second rotation axis (C2)) and the fourth rotation axis (e.g., fourth rotation axis (C4)), and the second rotation axis may be located between the first rotation axis and the third rotation axis (e.g., third rotation axis (C3)).

[0303] According to various embodiments of the present disclosure, a hinge module (e.g., hinge module (14)) may include a driving unit configured to provide a force to rotate a first part (e.g., first part (711)) around a first rotation axis (e.g., first rotation axis (C1)). The driving unit may include a shaft (e.g., first shaft (741)) connected to a shaft connection (e.g., first shaft connection (SC1)) included in the first part. The shaft may form the first rotation axis. The driving unit may include a compression spring (e.g., first compression spring (781)) located on the shaft. The driving unit may include a cam (e.g., cam (730)) located on the shaft between the shaft connection and the compression spring. The shaft connection of the first part may include a first cam gear. The cam may include a second cam gear (e.g., a third cam gear (7311)) that is engaged with the first cam gear through the elasticity of a compression spring.

[0304] According to various embodiments of the present disclosure, a hinge module (e.g., hinge module (14)) may include a third part (e.g., third part (713)) configured to be rotatable about a fifth rotation axis (e.g., fifth rotation axis (C5)) parallel to a first rotation axis (e.g., first rotation axis (C1)). The hinge module may include a fourth part (e.g., fourth part (714)) configured to be rotatable about a sixth rotation axis (e.g., sixth rotation axis (C6)) parallel to the fifth rotation axis. The hinge module may include a second bracket (e.g., second bracket (620)) connected to the third part and the fourth part, and the second bracket may be fixed to a second housing (e.g., second housing (12)). The third part and the second bracket may be rotatably connected around a seventh rotation axis (e.g., the seventh rotation axis (C7)) parallel to the fifth rotation axis. The fourth part and the second bracket may be rotatably connected around an eighth rotation axis (e.g., the eighth rotation axis (C8)) parallel to the sixth rotation axis through sliding between the fourth part and the second bracket. One of the fourth part and the second bracket may include a second guide rail (e.g., the third guide rail (GR81) and the fourth guide rail (GR82)), and the other may include a second slider (e.g., the third slider (S81) and the fourth slider (S82)) slidably positioned on the second guide rail. The second guide rail may include a second rail end (e.g., a third rail end (1811) and a fourth rail end (1821)) that is relatively thick relative to the eighth rotation axis. The second slider may include a second slider end (e.g., a third slider end (1911) and a fourth slider end (1921)) that is relatively thick relative to the eighth rotation axis. The second slider end may be configured to be positioned at the second rail end in the unfolded state of the foldable electronic device (e.g., foldable electronic device (1)).

[0305] According to various embodiments of the present disclosure, a fourth rotation axis (e.g., a fourth rotation axis (C4)) may be located outside of a second part (e.g., a second part (712)).

[0306] According to various embodiments of the present disclosure, a fourth rotation axis (e.g., a fourth rotation axis (C4)) may be located inside a second part (e.g., a second part (712)).

[0307] According to various embodiments of the present disclosure, a foldable electronic device (e.g., foldable electronic device (1)) may include a flexible display module (e.g., a first display module (15)) disposed in a first housing (e.g., a first housing (11)) and a second housing (e.g., a second housing (12)). The foldable electronic device may include a plate (e.g., a first plate (31)) coupled to a second part (e.g., a second part (712)) of a hinge module (e.g., a hinge module (14)). The plate may be configured to support the flexible display module.

[0308] According to various embodiments of the present disclosure, a foldable electronic device (e.g., foldable electronic device (1)) comprises a first housing (e.g., first housing (11)) and a second housing (e.g., second housing (12)). The foldable electronic device comprises a flexible display module (e.g., first display module (15)) disposed in the first housing and the second housing. The foldable electronic device comprises a hinge module (e.g., hinge module (14)) rotatably connecting the first housing and the second housing. The hinge module comprises a first part (e.g., first part (711)) configured to be rotatable about a first rotation axis (e.g., first rotation axis (C1)). The hinge module comprises a second part (e.g., second part (712)) configured to be rotatable about a second rotation axis (e.g., second rotation axis (C2)) parallel to the first rotation axis. The hinge module includes a bracket (e.g., a first bracket (610)). The bracket is fixed to a first housing and connected to a first part and a second part. The first part and the bracket are rotatably connected around a third rotation axis (e.g., a third rotation axis (C3)) parallel to a first rotation axis. The second part and the bracket are rotatably connected around a fourth rotation axis (e.g., a fourth rotation axis (C4)) parallel to a second rotation axis through sliding between the second part and the bracket. The second part includes a rail groove (e.g., a first guide rail (GR41) and / or a second guide rail (GR42)). The bracket includes a rail portion (e.g., a first slider (S41) and / or a second slider (S42)) slidably positioned in the rail groove of the second part.A first end (e.g., a first rail end (1411) and / or a second rail end (1421)) located relatively close to the back surface of the flexible display module in the rail groove of the second part, and a second end (e.g., a first slider end (1511) and / or a second slider end (1521)) located relatively close to the back surface of the flexible display module in the rail portion of the bracket are formed to be relatively thick with respect to a fourth rotation axis. In the unfolded state of the foldable electronic device (1), the second end of the rail portion of the bracket is configured to be located at the first end of the rail groove of the second part.

[0309] According to various embodiments of the present disclosure, a first part (e.g., first part (711)) and a bracket (e.g., first bracket (610)) may be rotatably connected around a third rotation axis (e.g., third rotation axis (C3)) through sliding between the first part and the bracket. The radius of curvature at which the second part (e.g., second part (712)) and the bracket rotate and slide relative to each other around a fourth rotation axis (e.g., fourth rotation axis (C4)) may be smaller than the radius of curvature at which the first part and the bracket rotate and slide relative to each other around the third rotation axis.

[0310] According to various embodiments of the present disclosure, a foldable electronic device (e.g., foldable electronic device (1)) may include a hinge cover (e.g., hinge cover (13)) coupled to a hinge module (e.g., hinge module (14)). The hinge module may include a rotational support (e.g., a first rotational support (721)) coupled to the hinge cover. A second part (e.g., a second part (712)) may include a first structural part (e.g., a first structural part (2010)) and a second structural part (e.g., a second structural part (2020)) extending from the first structural part. The first structural part may be connected to the rotational support so as to be rotatable about a second rotation axis (e.g., a second rotation axis (C2)) with respect to the rotational support. The first structural member can be connected to the bracket (e.g., the first bracket (610)) so as to be rotatable about the fourth rotation axis (e.g., the fourth rotation axis (C4)) with respect to the bracket (e.g., the first bracket (610)).

[0311] According to various embodiments of the present disclosure, a part (e.g., part (1611)) of a second part (e.g., second part (712)) and a part (e.g., part (1612)) of a rotational support may be configured to come into contact with each other to form rotational interference so that the first housing (e.g., first housing (11)) is not rotated more than 180 degrees with respect to the rotational support (e.g., first rotational support (721)).

[0312] According to various embodiments of the present disclosure, a first housing (e.g., first housing (11)) may include a support plate (e.g., first support plate (1111)) and a back cover (e.g., first back cover (112)) located within the first housing. A first bracket (e.g., first bracket (610)) of a hinge module (e.g., hinge module (14)) may be coupled to the support plate of the first housing. In the unfolded state of the foldable electronic device (e.g., foldable electronic device (1)), when viewed in a direction orthogonal to the back cover, the first rotation axis (e.g., first rotation axis (C1)) is located between the second rotation axis (e.g., second rotation axis (C2)) and the fourth rotation axis (e.g., fourth rotation axis (C4)), and the second rotation axis may be located between the first rotation axis and the third rotation axis (e.g., third rotation axis (C3)).

[0313] The embodiments disclosed in this disclosure and the drawings are provided merely as examples to facilitate the explanation of the technical content and to aid in understanding this disclosure, and are not intended to limit the scope of this disclosure. Accordingly, it should be understood that the scope of the various embodiments of this disclosure includes modifications or variations other than those disclosed herein. Additionally, it will be understood that any embodiment(s) described herein may be used in conjunction with any various embodiment(s) described herein. For example, this disclosure is presented in the form of providing multiple embodiments each defining a number of features, but it is emphasized that some of these embodiments are connected only by reference to the same drawings or drawings. This disclosure should be understood to include all combinations of these embodiments, unless there is an obvious contradiction between two (or more) embodiments. For example, where features are presented as optional in this disclosure, all combinations of such optional features are included in this disclosure.

Claims

1. In a foldable electronic device (1), A first housing (11) and a second housing (12); and It includes a hinge module (14) that rotatably connects the first housing (11) and the second housing (12), and The hinge module (14) above is, A first part (711) configured to be rotatable around a first rotation axis (C1), A second part (712) configured to be rotatable around a second rotation axis (C2) parallel to the first rotation axis (C1), and It includes a first bracket (610) fixed to the first housing (11) and connected to the first part (711) and the second part (712), and The first part (711) and the first bracket (610) are rotatably connected around a third rotation axis (C3) parallel to the first rotation axis (C1), and The second part (712) and the first bracket (610) are rotatably connected around a fourth rotation axis (C4) parallel to the second rotation axis (C2) through sliding between the second part (712) and the first bracket (610), and One of the second part (712) and the first bracket (610) comprises a first guide rail (GR41, GR42), and the other comprises a first slider (S41, S42) slidably positioned on the first guide rail (GR41, GR42). The first guide rail (GR41, GR42) includes a relatively thick first rail end (1411, 1421) with respect to the fourth rotation axis (C4), and The first slider (S41, S42) includes a first slider end (1511, 1521) that is relatively thick with respect to the fourth rotation axis (C4), and A foldable electronic device configured such that, in the unfolded state of the foldable electronic device (1), the first slider end (1511, 1521) is positioned at the first rail end (1411, 1421).

2. In Paragraph 1, The first part (711) and the first bracket (610) are rotatably connected around the third rotation axis (C3) through sliding between the first part (711) and the first bracket (610), and A foldable electronic device in which the radius of curvature at which the second part (712) and the first bracket (610) rotate and slide relative to each other around the fourth rotation axis (C4) is smaller than the radius of curvature at which the first part (711) and the first bracket (610) rotate and slide relative to each other around the third rotation axis (C3).

3. In Paragraph 1, It further includes a hinge cover (13) combined with the hinge module (14), and The hinge module (14) includes a rotating support (721) coupled to the hinge cover (13), and The above second part (712) is, A first structural member (2010) connected to the rotational support member (721) so as to be rotatable about the second rotation axis (C2) with respect to the rotational support member (721), and A foldable electronic device comprising a second structural member (2020) extending from the first structural member (2010) and connected to the first bracket (610) so as to be rotatable about the fourth rotation axis (C4) with respect to the first bracket (610).

4. In Paragraph 3 A foldable electronic device configured such that a part (1611) of the second part (712) (see FIG. 14 and 15) and a part (1612) of the rotational support (721) come into contact with each other to form rotational interference, so that the first housing (11) is not rotated more than 180 degrees with respect to the rotational support (721).

5. In Paragraph 3, The first bracket (610) above is, A third structural part (2410) combined with the first housing (11), A fourth structural member (2420) spaced apart from the third structural member (2410) in a direction parallel to the fourth rotation axis (C4) and coupled to the first housing (11), and It includes a fifth structural part (2430) extending the third structural part (2410) and the fourth structural part (2420), and The second structural part (2020) of the second part (712) is located between the third structural part (2410) and the fourth structural part (2420) of the first bracket (610), includes the first guide rail (GR41, GR42), and The third structural part (2410) and the fourth structural part (2420) of the first bracket (610) are a foldable electronic device including the first slider (S41, S42).

6. In Paragraph 5, The first housing (11) includes a support plate (1111) and a back cover (112) located within the first housing (11), and The first bracket (610) of the hinge module (14) is coupled to the support plate (1111) of the first housing (11), and In the unfolded state of the foldable electronic device (1), when viewed in a direction orthogonal to the back cover (112), the first rail end (1411, 1421) is located between the rotational support (721) and the fifth structural part (2430) of the first bracket (610).

7. In Paragraph 6, The first bracket (610) includes a slider structure (2900) comprising the first slider (S41, S42), and A space is formed between the slider structure (2900) and the support plate (1111) in a direction orthogonal to the back cover (112), and A foldable electronic device comprising a support plate (1111) having a protrusion (3100) configured to be positioned in the space and to support the slider structure (2900).

8. In Paragraph 6, The first slider (S41, S42) extends from the first slider end (1511, 1521) between the fifth structural part (2430) of the first bracket (610) and the support plate (1111) of the first housing (11), and A foldable electronic device in which the other end of the first slider (S41, S42) is superimposed with the fifth structural part (2430) of the first bracket (610) in a direction perpendicular to the back cover (112).

9. In Paragraph 1, The first bracket (610) above is, A first part bracket (611) connected to the first part (711) so as to be rotatable about the third rotation axis (C3) with respect to the first part (711), and A foldable electronic device comprising a second part bracket (612) connected to the second part (712) so as to be rotatable about the fourth rotation axis (C4) with respect to the second part (712).

10. In Paragraph 1, The first housing (11) includes a support plate (1111) and a back cover (112) located within the first housing (11), and The first bracket (610) of the hinge module (14) is coupled to the support plate (1111) of the first housing (11), and In the unfolded state of the foldable electronic device (1), when viewed in a direction orthogonal to the back cover (112), the first rotation axis (C1) is located between the second rotation axis (C2) and the fourth rotation axis (C4), and the second rotation axis (C2) is located between the first rotation axis (C1) and the third rotation axis (C3).

11. In Paragraph 1, The hinge module (14) includes a driving unit configured to provide a force to rotate the first part (711) around the first rotation axis (C1), and The above driving unit is, A shaft (741) connected to the shaft connecting part (SC1) included in the first part (711) and forming the first rotation axis (C1), A compression spring (781) located on the shaft (741), and It includes a cam (730) located on the shaft (741) between the shaft connecting part (SC1) and the compression spring (781), and The shaft connecting portion (SC1) of the first portion (711) includes a first cam gear, and The above cam (730) is a foldable electronic device comprising a second cam gear that is engaged with the first cam gear through the elasticity of the compression spring (781).

12. In Paragraph 1, The hinge module (14) above is, A third part (713) configured to be rotatable around a fifth rotation axis (C5) parallel to the first rotation axis (C1), A fourth part (714) configured to be rotatable around a sixth rotation axis (C6) parallel to the fifth rotation axis (C5), and It further includes a second bracket (620) fixed to the second housing (12) and connected to the third part (713) and the fourth part (714), and The third part (713) and the second bracket (620) are rotatably connected around a seventh rotation axis (C7) parallel to the fifth rotation axis (C5), and The fourth part (714) and the second bracket (620) are rotatably connected around an eighth rotation axis (C8) parallel to the sixth rotation axis (C6) through sliding between the fourth part (714) and the second bracket (620), and One of the above-mentioned fourth part (714) and the above-mentioned second bracket (620) includes a second guide rail (GR81, GR82), and the other includes a second slider (S81, S82) slidably positioned on the second guide rail (GR81, GR82). The second guide rail (GR81, GR82) includes a relatively thick second rail end (1811, 1821) with respect to the eighth rotation axis (C8), and The second slider (S81, S82) includes a second slider end (1911, 1921) that is relatively thick with respect to the eighth rotation axis (C8), and A foldable electronic device configured such that in the unfolded state of the foldable electronic device (1), the second slider end (1911, 1921) is positioned at the second rail end (1811, 1821).

13. In Paragraph 1, The above-mentioned fourth rotation axis (C4) is a foldable electronic device located outside the above-mentioned second part (712).

14. In Paragraph 1, The above-mentioned fourth rotation axis (C4) is a foldable electronic device located inside the above-mentioned second part (712).

15. In Paragraph 1, A flexible display module (15) disposed in the first housing (11) and the second housing (12); and A foldable electronic device further comprising a plate (31) coupled to the second part (712) of the hinge module (14) and configured to support the flexible display module (15).

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