Foldable device including asymmetric hinge structure

Abstract

This electronic device may comprise: a first housing part; a second housing part thinner than the first housing part; an asymmetric hinge structure for rotatably connecting the second housing part to the first housing part; and a display disposed on the first housing part, the asymmetric hinge structure, and the second housing part. A portion of the display may have an asymmetric droplet shape that is more convex in a direction toward the first housing part than in a direction toward the second housing part, in a state in which the first housing part and the second housing part are folded.

Description

Foldable device including an asymmetric hinge structure

[0001] The present disclosure relates to a foldable device including an asymmetric hinge structure.

[0002] A conventional foldable electronic device may include housing parts and a flexible display supported by said housing parts. The housing parts may be rotatably connected to each other through a symmetrical hinge structure, and the flexible display may be supported by said housing parts. The housing parts may be folded or unfolded from each other through rotation of said hinge structure. The flexible display may be deformed according to the folded state of said housing parts.

[0003] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in relation to the present disclosure.

[0004] Symmetrical hinge structures have limitations in attempts to reduce the overall thickness of foldable devices. To reduce the overall thickness of the electronic device, the thickness of each of one or more housing parts may need to be reduced. However, because each hinge structure in a symmetrical hinge structure has a symmetrical structure, it can be difficult to reduce the size of components such as gears that are essential for hinge connection. These design constraints limit the potential for miniaturization of foldable devices and can degrade the user experience by creating an unnecessarily thick folded form.

[0005] The present disclosure solves these limitations by providing a foldable electronic device having an asymmetric hinge structure that allows one housing part to be made thinner than another housing part while maintaining stable folding function and optimal display performance.

[0006] An electronic device may include: a first housing part; a second housing part having a thickness thinner than the thickness of the first housing part; a hinge structure rotatably connecting the first housing part and the second housing part; and a display disposed on the first housing part and the second housing part. The hinge structure may include: a bracket located at the center of the hinge structure; a first hinge part connected to one side of the bracket and the first housing part; and a second hinge part connected to the other side of the bracket and the second housing part. The first hinge part and the second hinge part have an asymmetrical structure relative to each other, and the radius of rotation of the first hinge part may differ from the radius of rotation of the second hinge part. The display may be configured to have an asymmetrical shape on the left and right sides with respect to the bracket of the hinge structure when the first housing part and the second housing part are in a folded state.

[0007] Additionally, the foldable electronic device may include: a first housing part; a second housing part having a thickness thinner than that of the first housing part; a hinge assembly rotatably connecting the first housing part and the second housing part; a hinge housing configured to cover at least a portion of the hinge assembly; and a flexible display disposed on the first housing part and the second housing part. The hinge assembly comprises: a first base fixed to at least a portion of the hinge housing; a first rotating arm, one end of which is rotatably connected to a first portion of the first base and the other end of which is rotatably connected to at least a portion of the first housing part; a second rotating arm, one end of which is rotatably connected to a second portion of the first base and the other end of which is fixedly connected to at least a portion of the second housing part; a second base fixed to at least another portion of the hinge housing; and a first spiral arm, one end of which is rotatably connected to a third portion of the second base and the other end of which is rotatably connected to another at least portion of the first housing part. It may include a second spiral arm, one end of which is rotatably connected to a fourth part of the second base and the other end of which is fixedly connected to another at least part of the second housing part; and a spiral slider that is at least partially coupled to the first spiral arm and the second spiral arm and configured to move along a guide rail included in the second base while the foldable electronic device is unfolded.

[0008] An asymmetric design can reduce the overall device thickness while simultaneously enhancing structural integrity and improving display deformation characteristics during folding.

[0009]

[0010] Figure 1 shows an electronic device in an unfolded state.

[0011] FIG. 2 shows an electronic device in a folded state with the first housing part and the second housing part.

[0012] Figures 3a and 3b show an electronic device in a folded state.

[0013] Figure 3c shows an electronic device in a folded state.

[0014] FIG. 4a is a perspective view of an electronic device according to the above.

[0015] Figure 4b is a plan view of the electronic device according to the plan.

[0016] FIG. 4c is a drawing showing the first hinge structure according to the above.

[0017] FIG. 5a is a perspective view showing a hinge module.

[0018] Figure 5b is an exploded view of an electronic device.

[0019] Figure 6a shows a hinge module.

[0020] FIG. 6b shows the rotation axes of the first rotating arm and the first link of the hinge module.

[0021] FIG. 6c shows the rotation axes of the first spiral arm and the second link of the hinge module.

[0022] FIG. 6d shows the rotation axes of the hinge module.

[0023] FIG. 6e is a conceptual diagram showing a multi-link mechanism for the first housing part of a hinge module.

[0024] FIG. 6f is a conceptual diagram showing a link mechanism for the second housing part of the hinge module.

[0025] FIGS. 7A, FIGS. 7B, FIGS. 7C, FIGS. 7D, and FIGS. 7E show the first rotating arm of the hinge module.

[0026] FIGS. 8A, FIGS. 8B, and FIGS. 8C show the first link of the hinge module.

[0027] FIGS. 9A, FIGS. 9B, FIGS. 9C, FIGS. 9D, and FIGS. 9E show the first base of the hinge module.

[0028] FIGS. 10a, FIGS. 10b, FIGS. 10c, FIGS. 10d, and FIGS. 10e show the first part of the first spiral arm of the hinge module.

[0029] FIGS. 11a, FIGS. 11b, FIGS. 11c, FIGS. 11d, and FIGS. 11e show the first part of the first spiral arm of the hinge module.

[0030] FIGS. 12a, FIGS. 12b, and FIGS. 12c show the second link of the hinge module.

[0031] FIGS. 13a, FIGS. 13b, FIGS. 13c, and FIGS. 13d show the second base and bar of the hinge module.

[0032] FIGS. 14a, FIGS. 14b, and FIGS. 14c are drawings showing the operation of the left hinge of the hinge module.

[0033] FIGS. 15a and FIGS. 15b show the operation of the hinge module.

[0034] FIGS. 16a, FIGS. 16b, FIGS. 16c, and FIGS. 16d show the second rotating arm of the hinge module.

[0035] FIGS. 17a, FIGS. 17b, FIGS. 17c, FIGS. 17d, and FIGS. 17e show the first part of the first spiral arm of the hinge module.

[0036] FIGS. 18a, FIGS. 18b, FIGS. 18c, FIGS. 18d, and FIGS. 18e show the first part of the first spiral arm of the hinge module.

[0037] FIGS. 19a, FIGS. 19b, and FIGS. 19c show the hinge housing of a hinge module.

[0038] FIG. 20a shows an electronic device in an unfolded state.

[0039] FIGS. 20b and FIGS. 20c show electronic devices in a single folded state or a multiple folded state.

[0040] Figure 21 is a drawing showing an asymmetric spiral interlocking structure.

[0041] FIGS. 22a and FIGS. 22b show a spiral slider of a hinge module.

[0042] FIG. 22c shows a hinge module.

[0043] FIG. 23a shows a spiral slider housed within a hinge housing.

[0044] FIG. 23b is a cross-sectional view along line 23B-23B' of FIG. 23a.

[0045] FIGS. 24a, FIGS. 24b, FIGS. 24c, FIGS. 24d, and FIGS. 24e are drawings illustrating the operation of a hinge module.

[0046] FIGS. 25a, FIGS. 25b, FIGS. 25c, FIGS. 25d, and FIGS. 25e show the states of the electronic device according to the positions of the hinge module.

[0047] FIGS. 26a, FIGS. 26b, FIGS. 26c, FIGS. 26d, and FIGS. 26e are drawings illustrating the operation of a hinge module.

[0048] FIG. 27a is a perspective view showing a hinge module.

[0049] FIGS. 27b, FIGS. 27c, and FIGS. 27d are cross-sectional views of a hinge module showing a first rotating arm and a second rotating arm.

[0050] FIGS. 27e, FIGS. 27f, and FIGS. 27g are cross-sectional views of a hinge module showing a first spiral arm and a second spiral arm.

[0051] FIGS. 28a and FIGS. 28b show the shape of a display according to the state of an electronic device.

[0052] Figure 29 shows a hinge module.

[0053] FIGS. 30a and FIGS. 30b show a hinge housing of an electronic device.

[0054] FIGS. 31a and FIGS. 31b show the support structure and foreign object prevention structure of the housing of an electronic device.

[0055] FIG. 32 is a block diagram of an electronic device in a network environment according to various embodiments.

[0056] Identical or similar components in the drawings may be assigned the same reference numerals. Descriptions of components having the same reference numeral may be applied identically or in a corresponding manner when referring to different drawings, unless otherwise noted, and redundant descriptions of components having the same reference numeral may not be repeated. In the following descriptions referring to specific drawings, reference numerals from other drawings may be referenced.

[0057] Figure 1 shows an electronic device in an unfolded state.

[0058] Referring to FIG. 1, an electronic device (1) (e.g., the electronic device (3201) of FIG. 32) may include a deformable housing. For example, the electronic device (1) may include a housing that can be folded or unfolded. For example, the housing of the electronic device (1) may include a first housing part (10) and a second housing part (20) that can be folded with respect to the first housing part (10). For example, the second housing part (20) may be folded with respect to the first housing part (10) around a first folding axis (f1). For example, the housing of the electronic device (1) may further include a third housing part (30) that can be folded with respect to the first housing part (10). For example, the third housing part (30) may be folded with respect to the first housing part (10) around a second folding axis (f2). The electronic device (1) may be referred to as a foldable electronic device or a multi-foldable electronic device.

[0059] In one embodiment, the electronic device (1) may include a display that is deformable into a shape corresponding to the shape of the housing. For example, the electronic device (1) may include a display (60). The display (60) may include, for example, a flexible display.

[0060] As illustrated in FIG. 1, the first housing part (10), the second housing part (20), and the third housing part (30) can be unfolded relative to each other. For example, the first housing part (10), the second housing part (20), and the third housing part (30) can be substantially parallel to each other and placed on substantially the same plane. In the unfolded state of the first housing part (10), the second housing part (20), and the third housing part (30), the first housing part (10), the second housing part (20), the third housing part (30), and the display (60) can define (and / or form) at least a part of the appearance of the electronic device (1). The state of the electronic device (1) illustrated in FIG. 1 may be referred to as the unfolded state or the fully unfolded state of the electronic device (1).

[0061] The second housing part (20) can be rotatably coupled to the first housing part (10). For example, the second housing part (20) can be rotatably coupled to a first side portion of the first housing part (10). For example, the side portion of the second housing part (20) can be rotatably coupled to the first side portion of the first housing part (10). For example, the second housing part (20) can be rotatably coupled to the first housing part (10) through a first hinge structure (41). For example, the first housing part (10) and the second housing part (20) can be folded or unfolded around a first folding axis (f1) through the first hinge structure (41).

[0062] The third housing part (30) can be rotatably coupled to the first housing part (10). For example, the third housing part (30) can be rotatably coupled to a second side portion of the first housing part (10) (e.g., opposite to the first side portion of the first housing part (10)). For example, the side portion of the third housing part (30) can be rotatably coupled to the second side portion of the first housing part (10). For example, the third housing part (30) can be rotatably coupled to the first housing part (10) through a second hinge structure (42). For example, the first housing part (10) and the third housing part (30) can be folded or unfolded around a second folding axis (f2) through the second hinge structure (42). The second folding axis (f2) can be parallel to the first folding axis (f1).

[0063] The display (60) may be placed on the first housing part (10), the second housing part (20), and the third housing part (30). For example, the display (60) may be placed across the first housing part (10), the second housing part (20), and the third housing part (30).

[0064] The display (60) may include a first part (61), a second part (62), a third part (63), a fourth part (64), and a fifth part (65). The first part (61) of the display (60) may be placed on a first housing part (10). The first part (61) of the display (60) may be at least partially supported by the first housing part (10). The second part (62) of the display (60) may be placed on a second housing part (20). The second part (62) of the display (60) may be at least partially supported by the second housing part (20). The third part (63) of the display (60) may be placed on a third housing part (30). The third part (63) of the display (60) may be at least partially supported by the third housing part (30).

[0065] The fourth part (64) of the display (60) may be positioned between the first part (61) and the second part (62) of the display (60). For example, the fourth part (64) of the display (60) may extend from one side of the first part (61) of the display (60) to the second part (62). For example, the fourth part (64) of the display (60) may connect the first part (61) and the second part (62) of the display (60).

[0066] At least a portion of the fourth part (64) of the display (60) may be supported by a first hinge structure (41) that rotatably connects the first housing part (10) and the second housing part (20) while the first housing part (10) and the second housing part (20) are in an unfolded state. For example, the fourth part (64) of the display (60) may include a first region supported by the first hinge structure (41) while the first housing part (10) and the second housing part (20) are in an unfolded state. For example, while the first housing part (10) and the second housing part (20) are in an unfolded state, the fourth part (64) of the display (60) may further include a second region disposed on the first housing part (10) and / or a third region disposed on the second housing part (20).

[0067] In the unfolded state of the first housing part (10) and the second housing part (20), the first part (61), the fourth part (64), and the second part (62) of the display (60) may be substantially parallel to each other and may lie on substantially the same plane. For example, in the unfolded state of the first housing part (10) and the second housing part (20), the first part (61), the fourth part (64), and the second part (62) of the display (60) may form a single area that is substantially flat.

[0068] A fifth part (65) of the display (60) may be positioned between the first part (61) and the third part (63) of the display (60). For example, the fifth part (65) of the display (60) may extend from the other side of the first part (61) of the display (60) (e.g., opposite to the said side of the first part (61)) to the third part (63). For example, the fifth part (65) of the display (60) may connect the first part (61) and the third part (63) of the display (60).

[0069] At least a portion of the fifth part (65) of the display (60) may be supported by a second hinge structure (42) that rotatably connects the first housing part (10) and the third housing part (30) while the first housing part (10) and the third housing part (30) are in an unfolded state. For example, the fifth part (65) of the display (60) may include a first region supported by the second hinge structure (42) while the first housing part (10) and the third housing part (30) are in an unfolded state. For example, while the first housing part (10) and the third housing part (30) are in an unfolded state, the fifth part (65) of the display (60) may further include a second region disposed on the first housing part (10) and / or a third region disposed on the third housing part (30).

[0070] In the unfolded state of the first housing part (10) and the third housing part (30), the first part (61), the fifth part (65), and the third part (63) of the display (60) may be substantially parallel to each other and may lie on substantially the same plane. For example, in the unfolded state of the first housing part (10) and the second housing part (20), the first part (61), the fourth part (64), and the second part (62) of the display (60) may form a single area that is substantially flat.

[0071] In the unfolded state of the first housing part (10), the second housing part (20), and the third housing part (30), parts (61, 62, 63, 64, and 65) of the display (60) may be substantially parallel to each other and may be placed on substantially the same plane. In the unfolded state of the first housing part (10), the second housing part (20), and the third housing part (30), parts (61, 62, 63, 64, and 65) of the display (60) may form a single area that is substantially flat.

[0072] FIG. 2 shows an electronic device in a folded state with the first housing part and the second housing part.

[0073] Referring to FIG. 2, the second housing part (20) can be folded relative to the first housing part (10), and the third housing part (30) can be unfolded relative to the first housing part (10). The state of the electronic device (1) shown in FIG. 2 can be referred to as a single-folded state.

[0074] In a folded state (e.g., the single folded state and the multiple folded state described later) of the first housing part (10) and the second housing part (20), the first part (61) and the second part (62) of the display (60) may face each other. For example, in a folded state (e.g., the single folded state and the multiple folded state described later) of the first housing part (10) and the second housing part (20), the first part (61) of the display (60) may face the direction of the second housing part (20), and the second part (62) of the display (60) may face the direction of the first housing part (10). Although not illustrated, within the folded state of the first housing part (10) and the second housing part (20) (e.g., the single folded state and the multiple folded state described later), the fourth part (64) connecting the first part (61) and the second part (62) of the display (60) may be bent. For example, the fourth part (64) of the display (60) may be deformed by the rotation of the second housing part (20) relative to the first housing part (10). For example, when the first housing part (10) and the second housing part (20) are in an unfolded state and then transition to a folded state, the fourth part (64) of the display (60) may be deformed from a substantially flat shape to a bent shape.

[0075] The first part (61) and the second part (62) around the fourth part (64) of the display (60) may be substantially flat. For example, the first part (61) of the display (60) may be substantially flat regardless of the rotation of the first housing part (10) relative to the second housing part (20). For example, the second part (62) of the display (60) may be substantially flat regardless of the rotation of the second housing part (20) relative to the first housing part (10).

[0076] In the unfolded state of the first housing part (10) and the third housing part (30) (e.g., the unfolded state and the single folded state), the first part (61) and the third part (63) of the display (60) may face substantially the same direction. In the single folded state, the first part (61) of the display (60) may not be exposed to the outside of the electronic device (1) by being covered by the second housing part (20), and the third part (63) of the display (60) may be exposed to the outside of the electronic device (1).

[0077] Although not illustrated, within the unfolded state of the first housing part (10) and the third housing part (30) (e.g., the unfolded state and the single folded state), the fifth part (65) connecting the first part (61) and the third part (63) of the display (60) may be substantially flat.

[0078] FIGS. 3A and 3B show an electronic device in a folded state. FIG. 3C shows an electronic device in a folded state according to a comparative example.

[0079] Referring to FIGS. 3a and 3b, the second housing part (20) can be folded relative to the first housing part (10), and the third housing part (30) can be folded relative to the first housing part (10) such that the second housing part (20) is positioned between the first housing part (10) and the third housing part (30). The state of the electronic device (1) illustrated in FIGS. 3a and 3b may be referred to as the folded state, fully folded state, or multi-folded state of the electronic device (1).

[0080] The first housing part (10) and the second housing part (20) in the above multiple folding state may be the same as the first housing part (10) and the second housing part (20) in the above single folding state.

[0081] Referring to FIG. 3b, within the multiple folding state, the third housing part (30) may be positioned on (and / or on) the second housing part (20). For example, within the multiple folding state, the third housing part (30) may be positioned on (and / or on) the back side of the second housing part (20) (e.g., the side of the second housing part (20) opposite to the side where the second part (62) of the display (60) is placed). For example, within the multiple folding state, the third part (63) of the display (60) placed on the third housing part (30) may face the second housing part (20) (e.g., the back side of the second housing part (20)).

[0082] Although not illustrated, within the folded state (e.g., the multiple folded state) of the first housing part (10) and the third housing part (30), the fifth part (65) connecting the first part (61) and the third part (63) of the display (60) may be bent. For example, the fifth part (65) of the display (60) may be deformed by the rotation of the third housing part (30) relative to the first housing part (10). For example, when transitioning from the unfolded state (e.g., the unfolded state or the single folded state) of the first housing part (10) and the third housing part (30) to the folded state (e.g., the multiple folded state), the fifth part (65) of the display (60) may be deformed from a substantially flat shape to a bent shape. Although not shown, in the above multiple folding state, the degree to which the fifth part (65) of the display (60) is bent may be smaller than the degree to which the fourth part (64) of the display (60) is bent in the above single folding state.

[0083] The first part (61) and the third part (63) around the fifth part (65) of the display (60) may be substantially flat. For example, the first part (61) of the display (60) may be substantially flat regardless of the rotation of the first housing part (10) relative to the third housing part (30). For example, the third part (63) of the display (60) may be substantially flat regardless of the rotation of the third housing part (30) relative to the first housing part (10).

[0084] Alternatively, the third housing part (30) may be rotated relative to the first housing part (10) so that the first housing part (10) is positioned between the second housing part (20) and the third housing part (30) within the multiple folding state. For example, the third housing part (30) may be configured to rotate clockwise relative to the first housing part (10) so that it is positioned below the first housing part (10), unlike rotating counterclockwise relative to the first housing part (10) so that the third housing part (30) is positioned above the second housing part (20) with reference to FIG. 3b.

[0085] In one embodiment, the second housing part (20) may be thinner than the first housing part (10). The second housing part (20) may be thinner than the third housing part (30). For example, the thickness of the first housing part (10) may be substantially the same as the thickness of the second housing part (20), but is not limited thereto.

[0086] In a comparative example, referring to FIG. 3c, the thickness of the second housing part (20') and the thickness of the third housing part (30') of the electronic device (1') may be substantially the same as the thickness of the first housing part (10'). In order to reduce the total thickness (H') of the electronic device (1') while the first housing part (10'), the second housing part (20'), and the third housing part (30') are in a folded state, it may be necessary to reduce the thickness of each of one or more of the housing parts (10', 20', and 30'). However, since the first hinge structure (41') and the second hinge structure (42') each have a symmetrical structure, it may be difficult to reduce the size of parts such as gears for the interlocking of the hinges. Accordingly, it may be difficult to reduce the thicknesses of the first housing part (10') and the second housing part (20') connected to each other through the first hinge structure (41'). Additionally, it may be difficult to reduce the thicknesses of the first housing part (10') and the third housing part (30') connected to each other through the second hinge structure (42'). Accordingly, it may also be difficult to reduce the overall thickness (H') of the electronic device (1').

[0087] Referring to FIG. 3a and FIG. 3b, according to one embodiment, the thickness of the second housing part (20) of the electronic device (1) may be smaller than the thickness of the second housing part (20') of the electronic device (1') of the comparative example. Accordingly, within the multi-fold state, the thickness (H) of the electronic device (1) may be smaller than the thickness (H') of the electronic device (1') without impairing functionality.

[0088] In order for the second housing part (20) to have a thinner thickness than the first housing part (10), the first hinge structure (41) that rotatably connects the first housing part (10) and the second housing part (20) may include a structure different from the hinge structure (41') that symmetrically connects the first housing part (10') and the second housing part (20') of the electronic device (1') of the comparative example.

[0089] Hereinafter, a first hinge structure (41) that rotatably connects a first housing part (10) and a second housing part (20) having a thinner thickness than the first housing part (10) will be described in detail.

[0090] FIG. 4a is a perspective view of an electronic device. FIG. 4b is a plan view of an electronic device. FIG. 4c is a drawing showing a first hinge structure. FIG. 4a and FIG. 4b may show an electronic device (1) in the unfolded state with the display (60) omitted.

[0091] Referring to FIGS. 4a and 4b, a first hinge structure (41) of an electronic device (1) may include one or more hinge modules and a hinge housing (15) in which the one or more hinge modules are received. For example, the first hinge structure (41) may include a first hinge module (41-1), a second hinge module (41-2), and a third hinge module (41-3), each of which is received within the hinge housing (15). Each of the first hinge module (41-1), the second hinge module (41-2), and the third hinge module (41-3) may rotatably connect a first housing part (10) and a second housing part (20). Each of the first hinge module (41-1), the second hinge module (41-2), and the third hinge module (41-3) may be referred to as a hinge structure or a hinge assembly.

[0092] In one embodiment, the hinge housing (15) may extend along a direction parallel to the first folding axis (f1) between the first housing part (10) and the second housing part (20). The first hinge module (41-1), the second hinge module (41-2), and the third hinge module (41-3) may be aligned along the direction parallel to the first folding axis (f1).

[0093] In one embodiment, at least a portion of the hinge housing (15) may be exposed to the outside of the electronic device (1) or not exposed to the outside of the electronic device (1) by being covered by the first housing part (10) and the second housing part (20), depending on the state of the electronic device (1). For example, in the unfolded state, the at least portion of the hinge housing (15) may not be exposed to the outside of the electronic device (1) by being covered by the first side portion of the first housing part (10) and the side portion of the second housing part (20). For example, in the single folded state or the multiple folded state, the at least portion of the hinge housing (15) may be exposed to the outside of the electronic device (1). The hinge housing (15) can be understood as being included in the housing of the electronic device (1) in that the hinge housing (15) constitutes part of the exterior of the electronic device (1) and / or being included in the first hinge structure (41) in that the hinge housing (15) accommodates hinge modules (41-1, 41-2, and 41-3).

[0094] The first housing part (10) may include a first mounting surface (10A) on which a first part (61) of the display (60) is placed. The second housing part (20) may include a second mounting surface (20A) on which a second part (62) of the display (60) is placed. The third housing part (30) may include a third mounting surface (30A) on which a third part (63) of the display (60) is placed.

[0095] Referring to FIG. 4c, in one embodiment, the third hinge module (41-3) may be located between the first hinge module (41-1) and the second hinge module (41-2). For example, the first hinge module (41-1) and the second hinge module (41-2) may be configured symmetrically around the third hinge module (41-3).

[0096] The first hinge module (41-1) may be spaced apart from the third hinge module (41-3), and accordingly, a space (46) between the first hinge module (41-1) and the third hinge module (41-3) may be defined. Within the space (46), a component of the electronic device (1) may be placed at least partially. For example, the electronic device (1) may include a first connecting member for transmitting an electrical signal between the first housing part (10) and the second housing part (20), and the first connecting member may include a portion located within the space (46) and crossing a portion of the hinge housing (15). The first connecting member may include, for example, a cable or a flexible printed circuit board, which is not limited to.

[0097] The second hinge module (41-2) may be spaced apart from the third hinge module (41-3), and accordingly, a space (47) between the second hinge module (41-2) and the third hinge module (41-3) may be defined. Within the space (47), other parts of the electronic device (1) may be at least partially disposed. For example, the electronic device (1) may include a second connecting member for transmitting an electrical signal between the first housing part (10) and the second housing part (20), and the second connecting member may include a portion located within the space (47) and crossing another part of the hinge housing (15). The second connecting member may include, for example, a cable or a flexible printed circuit board, which is not limited to.

[0098] FIG. 5a is a perspective view showing a hinge module according to the above. FIG. 5b is an exploded view of an electronic device.

[0099] The hinge module (50) illustrated in FIGS. 5a and 5b may be an example of the first hinge module (41-1) or the second hinge module (41-2) of FIGS. 4a and 4b. The Y-axis illustrated in the drawings of the present disclosure may be parallel to the first folding axis (f1) of FIGS. 4a and 4b. In the drawings of the present disclosure, the X-axis may be perpendicular to the first folding axis (f1) of FIGS. 4a and 4b and may be substantially parallel to the first part (61), the second part (62), and the fourth part (64) of the display (60) in the unfolded state of the first housing part (10) and the second housing part (20). In the unfolded state of the first housing part (10) and the second housing part (20), the first housing part (10), the hinge module (50), and the second housing part (20) may be positioned in order along the +X direction. In the drawings of the present disclosure, the Z axis may be substantially perpendicular to the first part (61), the second part (62), and the fourth part (64) of the display (60) in the unfolded state of the first housing part (10) and the second housing part (20). In the unfolded state of the first housing part (10) and the second housing part (20), the hinge module (50) and the fourth part (64) of the display (60) may be positioned in order along the +Z direction.

[0100] Referring to FIGS. 5A and 5B, the hinge module (50) may include a base assembly (58). The base assembly (58) may include a first base (581), a second base (582), and a bar (583) between the first base (581) and the second base (582). The bar (583) may extend parallel to the Y-axis. The bar (583) may connect the first base (581) and the second base (582). The bar (583) may be formed integrally with the first base (581) or the second base (582). FIGS. 5A and 5B illustrate an example in which the bar (583) is formed integrally with the second base (582). In this case, the bar (583) may extend from the second base (582) toward the first base (581) (e.g., in the +Y direction). The end of the bar (583) toward the first base (581) may be coupled to the first base (581). The base assembly (58) may be referred to as a bracket assembly. The first base (581) may be referred to as a first bracket, and the second base (582) may be referred to as a second bracket. The second base (582) containing the bar (583) may be referred to as a base key.

[0101] In one embodiment, the hinge module (50) may include a first rotating arm (511), a first link (541), and a second rotating arm (512). The first rotating arm (511) and the second rotating arm (512) may each be rotatably coupled to both sides of the base assembly (58). For example, a first end of the first rotating arm (511) facing the direction of the second rotating arm (512) (e.g., +X direction) (e.g., the first end (5111) in FIG. 7a) may be rotatably coupled to a first side portion of the first base (581) (e.g., the first side portion (581-1) in FIG. 9a), and a first end of the second rotating arm (512) facing the direction of the first rotating arm (511) (e.g., -X direction) may be rotatably coupled to a second side portion of the first base (581) opposite to the first side portion of the first base (581) (e.g., the second side portion (581-2) in FIG. 9a). The first rotating arm (511) may be referred to as a wing plate. The first link (541) may be referred to as a wing rotate slider. The second rotating arm (512) may be referred to as a body rotate.

[0102] A second end of the first rotating arm (511) opposite to the first end of the first rotating arm (511) (e.g., the second end (5112) of FIG. 7a) can be rotatably coupled to the first link (541).

[0103] The hinge module (50) may include a first spiral arm (520), a second link (542), and a second spiral arm (530). The first spiral arm (520) and the second spiral arm (530) may each be rotatably coupled to both sides of the base assembly (58). The second link (542) may be referred to as a spiral arm slider.

[0104] In one embodiment, a first end of the first spiral arm (520), facing the direction of the second spiral arm (530) (e.g., +X direction), may be rotatably coupled to the first side portion of the first base (581) and the first side portion of the second base (582). In one embodiment, the first spiral arm (520) may include a plurality of parts. For example, the first spiral arm (520) may include a first part (521) and a second part (522) assembled to the first part (521). Alternatively, the first part (521) and the second part (522) of the first spiral arm (520) may be formed integrally. For example, the first spiral arm (520) may include a single part in which the first part (521) and the second part (522) are formed integrally.

[0105] The first end of the first spiral arm (520) described above may include the first ends of the first part (521) and the second part (522). For example, the first end of the first part (521) may be rotatably coupled to the first side portion of the first base (581), and the first end of the second part (522) may be rotatably coupled to the first side portion of the second base (582).

[0106] In one embodiment, a second end of the first spiral arm (520), opposite to the first end of the first spiral arm (520), may be rotatably coupled to a second link (542). For example, the second end of the first spiral arm (520) may include the second ends of a first part (521) and a second part (522). For example, the second end of the first part (521) may be rotatably coupled to a part of the second link (542). For example, the second end of the second part (522) may be rotatably coupled to another part of the second link (542).

[0107] In one embodiment, a first end of a second spiral arm (530) facing the direction of the first spiral arm (520) (e.g., -X direction) may be rotatably coupled to the second side portion of the first base (581) and the second side portion of the second base (582). In one embodiment, the second spiral arm (530) may include a plurality of parts. For example, the second spiral arm (530) may include a first part (531) and a second part (532) assembled to the first part (531). The first end of the second spiral arm (530) described above may include the first ends of the first part (531) and the second part (532). For example, the first end of the first part (531) may be rotatably coupled to the second side portion of the first base (581), and the first end of the second part (532) may be rotatably coupled to the second side portion of the second base (582). The first part (531) and the second part (532) of the second spiral arm (530) may each be referred to as body rotate.

[0108] The hinge module (50) may include a spiral slider (550) that is slidably coupled to the bar (583). For example, the spiral slider (550) may be movable in the +Y direction and the -Y direction along the bar (583) or a guide rail formed on the bar (583).

[0109] The first end of the first spiral arm (520) and the first end of the second spiral arm (530) can each be rotatably coupled to both sides of the spiral slider (550). As the first spiral arm (520) and the second spiral arm (530) rotate relative to the spiral slider (550), the spiral slider (550) can slide along the bar (583). Accordingly, the rotation of the first spiral arm (520) and the rotation of the second spiral arm (530) can be coupled. For example, the spiral slider (550) moves in a first direction (e.g., +Y direction) by the rotation of the first spiral arm (520), and the second spiral arm (530) can be rotated according to the movement of the spiral slider (550).

[0110] In one embodiment, the first rotating arm (511), the first spiral arm (520), the first link (541), and the second link (542) of the hinge module (50) may be referred to as the first hinge, the first hinge part, or the left hinge of the hinge module (50). In one embodiment, the second rotating arm (512) and the second spiral arm (530) of the hinge module (50) may be referred to as the second hinge, the second hinge part, or the right hinge of the hinge module (50).

[0111] Referring to FIG. 5b, the base assembly (58) of the hinge module (50) can be at least partially accommodated within the hinge housing (15) between the first housing part (10) and the second housing part (20). The base assembly (58) can be fixedly coupled to the hinge housing (15). For example, the first base (581) and the second base (582) can each be fixedly coupled to the hinge housing (15).

[0112] In one embodiment, the first link (541) and the second link (542) may be received within a recess (101) formed in the first seating surface (10A) of the first housing part (10). The first link (541) and the second link (542) may be fixedly coupled to the first housing part (10).

[0113] The second end of the second rotating arm (512) and the second end of the second spiral arm (530) can be received in one or more recesses formed in the second seating surface (20A) of the second housing part (20).

[0114] For example, the second end of the second rotating arm (512) may be received within a first recess (201) formed in the second seating surface (20A) of the second housing part (20). The second end of the second rotating arm (512) received within the first recess (201) may be fixedly coupled to the second housing part (20).

[0115] For example, the second end of the second spiral arm (530) may be received within a second recess (202) formed in the second seating surface (20A) of the second housing part (20). The second end of the second spiral arm (530) received within the second recess (202) may be fixedly coupled to the second housing part (20). For example, the second end of the second spiral arm (530) may include the second ends of the first part (531) and the second part (532). The second ends of the first part (531) and the second part (532) may be received within the second recess (202) of the second housing part (20) and may each be fixedly coupled to the second housing part (20).

[0116] Figure 6a shows a hinge module.

[0117] Referring to FIG. 6a, the first rotating arm (511) can rotate about the first axis (a1) with respect to the first base (581). For example, the first rotating arm (511) can rotate about the first axis (a1) with respect to the first side portion of the first base (581).

[0118] The first spiral arm (520) can rotate about the second axis (a2) with respect to the base assembly (58). For example, the first spiral arm (520) can rotate about the second axis (a2) with respect to the first base (581) and the second base (582). For example, the first part (521) of the first spiral arm (520) can rotate about the first axis (a1) with respect to the first base (581), and the second part (522) can rotate about the first axis (a1) with respect to the second base (582).

[0119] The second rotating arm (512) and the second spiral arm (530) can rotate about an axis (b1) with respect to the base assembly (58). For example, the second rotating arm (512) can rotate about an axis (b1) with respect to the first base (581). For example, the first part (531) of the second spiral arm (530) can rotate about an axis (b1) with respect to the first base (581). For example, the second part (532) of the second spiral arm (530) can rotate about an axis (b1) with respect to the second base (582).

[0120] In one embodiment, since the first base (581) and the second base (582) are fixedly coupled to the hinge housing (15), each of the axes (a1, a2, and b1) provided by the first base (581) and the second base (582) may be a fixed axis. Each of the axes (a1, a2, and b1) provided by the first base (581) and the second base (582) may be parallel to the Y-axis.

[0121] In one embodiment, the horizontal length along the X-axis of the second rotating arm (512) may be greater than the horizontal length along the X-axis of the first rotating arm (511). The vertical length along the Y-axis of the second rotating arm (512) may be greater than the vertical length along the Y-axis of the first rotating arm (511). As the horizontal length of the second rotating arm (512) fixedly coupled to the second housing part (20) increases (e.g., as the part of the second rotating arm (512) fixedly coupled to the second housing part (20) moves further away from the first base (581), the force required to rotate the second housing part (20) may decrease.

[0122] FIG. 6b shows the rotation axes of the first rotating arm and the first link of the hinge module. FIG. 6b may correspond, for example, to line A-A' of FIG. 4a.

[0123] Referring to FIG. 6b, the first rotating arm (511) can rotate about a first axis (a1) with respect to the first base (581). For example, the first rotating arm (511) can rotate about the first axis (a1) with respect to the first base (581) by a first rotation radius (r1). Additionally, the first rotating arm (511) can rotate about a third axis (a3) ​​with respect to the first link (541). For example, the first rotating arm (511) can rotate about the third axis (a3) ​​with respect to the first link (541) by a third rotation radius (r3). The first axis (a1) between the first base (581) and the first rotating arm (511) is not limited and may be located outside the first rotating arm (511), for example. The third axis (a3) ​​between the first rotating arm (511) and the first link (541) may be located outside the first link (541), for example, without limitation. The third rotation radius (r3) may be smaller than the first rotation radius (r1), for example, without limitation.

[0124] FIG. 6c shows the rotation axes of the first spiral arm and the second link of the hinge module. FIG. 6c may correspond, for example, to line B-B' of FIG. 4a.

[0125] Referring to FIG. 6c, the first spiral arm (520) can rotate about a second axis (a2) with respect to the base assembly (58). For example, the first spiral arm (520) can rotate about a second axis (a2) with respect to the base assembly (58) with a second radius of rotation (r2). For example, the first part (521) of the first spiral arm (520) can rotate about a second axis (a2) with respect to the first base (581), and the second part (522) of the first spiral arm (520) can rotate about a second axis (a2) with respect to the second base (582).

[0126] Additionally, the first spiral arm (520) can rotate about the fourth axis (a4) with respect to the second link (542). For example, the first spiral arm (520) can rotate about the fourth axis (a4) with respect to the second link (542) by a fourth radius of rotation (r4). For example, the first part (521) and the second part (522) of the first spiral arm (520) can rotate about the fourth axis (a4) with respect to the second link (542). For example, the second axis (a2) may be located within the first base (581) and the second base (582), but is not limited thereto. For example, the second axis (a2) may pass through the first base (581) and the second base (582). For example, the fourth axis (a4) may be located outside the first spiral arm (520) and the second link (542). For example, the second radius of rotation (r2) may be smaller than the fourth radius of rotation (r4).

[0127] FIG. 6d shows the rotation axes of the hinge module. FIG. 6e is a conceptual diagram showing a multi-link mechanism for the first housing part of the hinge module. FIG. 6f is a conceptual diagram showing a link mechanism for the second housing part of the hinge module.

[0128] Referring to FIG. 6d, the hinge module (50) may include a multi-bar link mechanism configured to rotate the first housing part (10). Additionally, the hinge module (50) may include a single-bar link mechanism configured to rotate the second housing part (20). The operation of the multi-bar link mechanism of the hinge module (50) and the operation of the single-bar link mechanism may be coupled to each other (e.g., via a spiral slider (550)). As described above, the hinge module (50), having different structures on both sides, may be referred to as an asymmetric hinge module, an asymmetric hinge structure, or an asymmetric hinge assembly. The asymmetric hinge module enables the two mechanisms, namely the multi-bar link mechanism and the single-bar link mechanism, to operate together despite their different configurations.

[0129] In one embodiment, the multi-segment link mechanism of the hinge module (50) may include a first axis (a1), a second axis (a2), a third axis (a3), a fourth axis (a4), and links connecting them. For example, referring to FIG. 6e, the multi-segment link mechanism of the hinge module (50) may include a first bar (L1) connected between the first axis (a1) and the third axis (a3), a second bar (L2) connected between the second axis (a2) and the fourth axis (a4), a third bar (L3) connected between the third axis (a3) ​​and the fourth axis (a4), and a fourth bar (L4) connected between the first axis (a1) and the second axis (a2).

[0130] Referring to the drawings described above together with FIG. 6e, the first bar (L1) may include a first rotating arm (511) configured to rotate about a first axis (a1) and a third axis (a3). The second bar (L2) may include a first spiral arm (520) configured to rotate about a second axis (a2) and a fourth axis (a4). The third bar (L3) may include a first link (541) providing the third axis (a3) ​​and a second link (542) fixedly coupled to the first link (541) and providing the fourth axis (a4). Additionally, the third bar (L3) may include a first housing part (10) to which the first link (541) and the second link (542) are fixedly coupled. The fourth bar (L4) may include a base assembly (58) that provides two fixed axes, a first axis (a1) and a second axis (a2).

[0131] In one embodiment, the first bar (L1) can rotate clockwise by a first angle (c1) around a first axis (a1). For example, the second bar (L2), which is connected to the first bar (L1) through the third bar (L3), can rotate clockwise by a second angle (c2) around a second axis (a2) while the first bar (L1) rotates by a first angle (c1). The third bar (L3) can rotate clockwise by a third angle (c3) while the first bar (L1) rotates by a first angle (c1) and the second bar (L2) rotates by a second angle (c2). For example, the first housing part (10) included in the third bar (L3) can rotate by a third angle (c3) with respect to the hinge module (50) according to the rotation of the first rotating arm (511) included in the first bar (L1) and the rotation of the first spiral arm (520) included in the second bar (L2). The third angle (c3) may be, for example, 90 degrees. The first angle (c1) may be, for example, larger than the third angle (c3). For example, the first angle (c1) may be, for example, 110 degrees, without limitation. The second angle (c2) may be, for example, smaller than the first angle (c1) and the third angle (c3). For example, the second angle (c2) may be 80 degrees, without limitation.

[0132] Referring to the drawings described above together with FIG. 6f, the single link mechanism of the hinge module (50) may include a bar (L) connected to an axis (b). The bar (L) may include a second rotating arm (512) rotatably coupled to a first base (581), and a second spiral arm (530) rotatably coupled to the first base (581) and the second base (582). The bar (L) may further include a second housing part (20) to which the second rotating arm (512) and the second spiral arm (530), included in the bar (L), are fixedly coupled.

[0133] In one embodiment, the rotation of the bar (L) may be coupled with the bars (L1, L2, and L3) of the hinge module (50). For example, while the bars (L1, L2, and L3) rotate clockwise, the bar (L) may rotate counterclockwise. For example, the bar (L) may rotate counterclockwise by an angle (c) around the axis (b). For example, the second housing part (20) included in the bar (L) may rotate counterclockwise by an angle (c) while the first housing part (10) rotates by a third angle (c3). The angle (c) may be, for example, 90 degrees.

[0134] As described above, the hinge module (50) can rotate the first housing part (10) clockwise by a third angle (c3) and rotate the second housing part (20) counterclockwise by an angle (c). Accordingly, the first housing part (10) and the second housing part (20) can be folded together. For example, the state of the electronic device (1) can be switched from the unfolded state to the single folded state. Conversely, as the first housing part (10) is rotated counterclockwise by a third angle (c3) and the second housing part (20) is rotated clockwise by an angle (c) through the hinge module (50), the state of the electronic device (1) can be switched from the single folded state to the unfolded state.

[0135] Referring again to FIG. 6d, for example, the first radius of rotation (r1) may be smaller than the second radius of rotation (r2), for example, and for example, the third radius of rotation (r3) may be smaller than the fourth radius of rotation (r4).

[0136] In one embodiment, within the unfolded state of the first housing part (10) and the second housing part (20), a boundary line (or boundary surface) (B) between the first housing part (10) and the second housing part (20) may be defined. An axis (b) for the second housing part (20) may be closer to the boundary line (B) than a first axis (a1) for the first housing part (10). An axis (b) for the second housing part (20) may be closer to the boundary line (B) than a second axis (a2) for the first housing part (10). For example, though not limited, a second axis (a2) for the second housing part (20) may be closer to the boundary line (B) than a first axis (a1) for the second housing part (20).

[0137] FIGS. 7A, 7B, 7C, 7D, and 7E illustrate a first rotating arm of a hinge module. FIG. 7B may be a view of the first rotating arm (511) shown in FIG. 7A in the -Z direction. FIG. 7C may be a view of the first rotating arm (511) shown in FIG. 7A in the +Z direction. FIG. 7D may be a view of the first rotating arm (511) shown in FIG. 7A in the -Y direction. FIG. 7E may be a view of the first rotating arm (511) shown in FIG. 7A in the +Y direction.

[0138] Referring to FIGS. 7A, 7B, 7C, 7D, and 7E, the first rotating arm (511) may include a first end (5111) and a second end (5112) opposite to the first end (5111). For example, the first end (5111) may face the direction of the first base (581) (e.g., +X direction), and the second end (5112) may face the direction of the first housing part (10) (e.g., -X direction).

[0139] A first guide rail (511a) may be formed at the first end (5111) of the first rotating arm (511) to guide the rotation of the first rotating arm (511) relative to the first base (581). For example, the first end (5111) may be coupled to the first base (581) in such a way that the first guide rail (511a) engages with a guide rail formed on the first side portion of the first base (581). For example, the first guide rail (511a) may include a groove, and the guide rail of the first base (581) may include a projection that is received in the first guide rail (511a).

[0140] The first guide rail (511a) of the first rotating arm (511) can form a first axis (a1). For example, the first rotating arm (511) can rotate about the first axis (a1) with respect to the first base (581) by moving the first guide rail (511a) along the guide rail of the first base (581).

[0141] A second guide rail (511b) may be formed at the second end (5112) of the first rotating arm (511) to guide the rotation of the first rotating arm (511) relative to the first link (541). For example, the second end (5112) may be coupled to the first link (541) in such a way that the second guide rail (511b) engages with the guide rail of the first link (541) (e.g., the guide rail (541a) of FIG. 8c). For example, the second guide rail (511b) may include a groove, and the guide rail of the first link (541) may include a projection that is received in the second guide rail (511b).

[0142] The second guide rail (511b) of the first rotating arm (511) can form a third axis (a3). For example, the first rotating arm (511) can rotate about the third axis (a3) ​​with respect to the first link (541) by moving the second guide rail (511b) along the guide rail of the first link (541).

[0143] In one embodiment, the first rotating arm (511) may include a substantially flat support surface (511A). The support surface (511A) may be formed by the first end (5111) and the second end (5112) of the first rotating arm (511).

[0144] The support surface (511A) can support a part of the display (60) (e.g., a fourth part (64)) within the unfolded state of the first housing part (10) and the second housing part (20).

[0145] FIGS. 8A, FIGS. 8B, and FIGS. 8C illustrate a first link of a hinge module. FIG. 8B may be a view of the first link (541) shown in FIG. 8A in the -Z direction. FIG. 8C may be a view of the first link (541) shown in FIG. 8A in the +Z direction.

[0146] Referring to FIGS. 8a, 8b, and 8c, the first link (541) may include a first part (5411), a second part (5412) extending from the first part (5411), and a third part (5413) extending from the second part (5412).

[0147] In the first part (5411), the second end (5112) of the first rotating arm (511) can be rotatably coupled. In the second part (5412), a first screw hole (5412h) can be formed. The first link (541) can be fixedly coupled to the first housing part (10) through a screw fastened to the first screw hole (5412h).

[0148] A second screw hole (5413h) may be formed in the third part (5413). The third part (5413) may have a smaller thickness than the second part (5412). The third part (5413) may protrude from the second part (5412). For example, the third part (5413) may protrude from the second part (5412) in the direction of the second link (542) (e.g., -Y direction). The third part (5413) may be placed on the second link (542), and the second screw hole (5413h) of the third part (5413) may be aligned with the screw hole (e.g., screw hole (5423h)) of the second link (542). The first link (541) can be fixedly coupled to the second link (542) and the second housing part (20) through a screw that is fastened to the second screw hole (5413h) and the screw hole of the second link (542).

[0149] Referring to FIG. 8c, a guide rail (541a) may be formed in the first part (5411) of the first link (541) to guide the rotation of the first rotating arm (511) relative to the first link (541). A second guide rail (511b) of the first rotating arm (511) may be movably coupled to the guide rail (541a) of the first link (541). The guide rail (541a) of the first link (541), together with the second guide rail (511b) of the first rotating arm (511), may form a third axis (a3) ​​of the hinge module (50).

[0150] FIGS. 9a, 9b, 9c, 9d, and 9e illustrate a first base of a hinge module. FIG. 9b may be a view of the first base (581) of FIG. 9a seen in the -Z direction. FIG. 9c may be a view of the first base (581) of FIG. 9a seen in the +Z direction. FIG. 9d may be a view of the first base (581) of FIG. 9a seen in the -Y direction. FIG. 9e may be a view of the first base (581) of FIG. 9a seen in the +Y direction.

[0151] Referring to FIGS. 9a, 9b, 9c, 9d, and 9e, according to one embodiment, a first base (581) may include a first side portion (581-1) and a second side portion (581-2) opposite to the first side portion (581-1). For example, the first side portion (581-1) may face the direction of the first housing part (10) (e.g., -X direction), and the second side portion (581-2) may face the direction of the second housing part (20) (e.g., +X direction). For example, the width of the first side portion (581-1) (e.g., length along the X-axis) may be greater than the width of the second side portion (581-2) (e.g., length along the X-axis). Accordingly, referring to FIG. 9d and FIG. 9e, the center (P9) of the total width (e.g., total length along the X-axis) of the first base (581) may be located within the first side portion (581-1) among the first side portion (581-1) and the second side portion (581-2). The thickness (e.g., length along the Z-axis) of the first side portion (581-1) may be greater than the thickness of the second side portion (581-2).

[0152] Referring again to FIGS. 9A, 9B, 9C, 9D, and 9E, the first base (581) may include a first part (5811), a second part (5812) spaced apart from the first part (5811), and a third part (5813) extending from the first part (5811) to the second part (5812). The first side part (581-1) may include a part of the first part (5811), a part of the second part (5812), and a part of the third part (5813), and the second side part (581-2) may include the remaining part of the first part (5811), the remaining part of the second part (5812), and the remaining part of the third part (5813). Optionally or alternatively, the second side part (581-2) may not include the third part (5813).

[0153] In one embodiment, the first base (581) may include an upper surface (581A). The upper surface (581A) may face, for example, the fourth part (64) of the display (60) while the first housing part (10) and the second housing part (20) are unfolded. For example, the upper surface (581A) may include a first region that is substantially flat and a second region formed by a curved surface that is recessed from the first region. The first region of the upper surface (581A) that is substantially flat may support the fourth part (64) of the display (60) while the first housing part (10) and the second housing part (20) are unfolded. The fourth part (64) of the display (60) can be partially accommodated within the recess (581B) formed by the second area of ​​the upper surface (581A) while the first housing part (10) and the second housing part (20) are folded.

[0154] In one embodiment, the upper surface (581A) of the first base (581) may be formed by the first side portion (581-1) and the second side portion (581-2). For example, the area of ​​the upper surface (581A) formed by the first side portion (581-1) may be larger than the area of ​​the upper surface (581A) formed by the second side portion (581-2). Additionally, the area of ​​the recess (581B) formed by the first side portion (581-1) may be larger than the area of ​​the recess (581B) formed by the second side portion (581-2).

[0155] In one embodiment, the first part (5811) may include a first protruding part (5811a) and a second protruding part (5811b). The first protruding part (5811a) and the second protruding part (5811b) may each protrude toward the second part (5812) (e.g., in the -Y direction). A third part (5813) may be partially located between the first protruding part (5811a) and the second protruding part (5811b). The first part (5811) may have a greater horizontal width (e.g., length along the X-axis) than the third part (5813) so that protruding parts (5811a and 5811b) located on both sides of the third part (5813) can be formed. The first protruding part (5811a) may be included in the first side part (581-1), and the second protruding part (5811b) may be included in the second side part (581-2).

[0156] In one embodiment, the second part (5812) may include a first protruding part (5812a) and a second protruding part (5812b). The first protruding part (5812a) and the second protruding part (5812b) may each protrude toward the first part (5811) (e.g., in the +Y direction). The first protruding part (5812a) of the second part (5812) may face the first protruding part (5811a) of the first part (5811). The second protruding part (5812b) of the second part (5812) may face the second protruding part (5811b) of the first part (5811). The first protruding part (5812a) may be included in the first side part (581-1) and the second protruding part (5812b) may be included in the second side part (581-2).

[0157] The first protrusion (5811a) and the second protrusion (5812b) of the first part (5811) may be substantially aligned along the X-axis. The distance between the first protrusions (5811a and 5812a) may be smaller than the distance between the second protrusions (5811b and 5812b).

[0158] In one embodiment, the second portion (5812) may include a third protruding portion (5812c) and a fourth protruding portion (5812d). The third protruding portion (5812c) and the fourth protruding portion (5812d) may each protrude toward the second base (582) (e.g., in the -Y direction). The third protruding portion (5812c) may be included in the first side portion (581-1), and the fourth protruding portion (5812d) may be included in the second side portion (581-2).

[0159] In one embodiment, the first rotating arm (511) and the first part (521) of the first spiral arm (520) may each be rotatably coupled to the first side portion (581-1). For example, the first rotating arm (511) may be rotatably coupled to the first protruding portions (5811a and 5812a). For example, the first protruding portions (5811a and 5812a) may be movably coupled to the first guide rail (511a) of the first rotating arm (511). By moving the first guide rail (511a) of the first rotating arm (511) along the first protruding portions (5811a and 5812a) of the first base (581), the first rotating arm (511) may rotate relative to the first side portion (581-1). The first protruding parts (5811a and 5812a) can form the first axis (a1) of the hinge module (50).

[0160] For example, the first part (521) of the first spiral arm (520) may be rotatably coupled to a third protruding part (5812c) corresponding to the first side part (581-1). For example, a guide rail may be formed on the third protruding part (5812c) to guide the rotation of the first spiral arm (520) relative to the first side part (581-1). For example, the third protruding part (5812c) may be movably coupled to a guide rail formed on the first spiral arm (520) (e.g., the first guide rail (521a) of FIG. 10a). By moving the first spiral arm (520) along the third protruding part (5812c) of the first base (581), the first spiral arm (520) may rotate relative to the first side part (581-1). The third protruding part (5812c) can form the second axis (a2) of the hinge module (50).

[0161] In one embodiment, the second side portion (581-2) may each be rotatably coupled to the first part (531) of the second rotating arm (512) and the second spiral arm (530). For example, the second rotating arm (512) may be rotatably coupled to the second protruding portions (5811b and 5812b) corresponding to the second side portion (581-2). For example, the second protruding portions (5811b and 5812b) may form a guide rail for guiding the rotation of the second rotating arm (512). Additionally, or optionally, the guide rail for guiding the rotation of the second rotating arm (512) may be formed by the second protruding portions (5811b and 5812b) and the hinge housing (15). In one embodiment, a guide rail for a second rotating arm (512), which is at least partially formed by the second protruding parts (5811b and 5812b), can form the axis (b) of the hinge module (50).

[0162] For example, the first part (531) of the second spiral arm (530) may be rotatably coupled to a fourth protrusion (5812d) corresponding to the second side part (581-2). For example, the fourth protrusion (5812d) may form a guide rail to guide the rotation of the first part (531) of the second spiral arm (530). Additionally, or optionally, the guide rail to guide the rotation of the first part (531) of the second spiral arm (530) may be formed by the fourth protrusion (5812d) and the hinge housing (15). In one embodiment, the guide rail for the first part (531) of the second spiral arm (530), which is at least partially formed by the fourth protrusion (5812d), may form the axis (b) of the hinge module (50).

[0163] In one embodiment, the first base (581) may include one or more screw holes for fixing the first base (581) to the hinge housing (15). For example, a first screw hole (5812h) may be formed in the second part (5812), and a second screw hole (5813h) may be formed in the third part (5813). For example, the screw holes (5812h and 5813h) may be formed in the first side part (581-1) among the first side part (581-1) and the second side part (581-2). The first base (581) may be fixed to the hinge housing (15) through screws fastened to the screw holes (5812h and 5813h).

[0164] In one embodiment, the first base (581) may include a first side (581C) facing the direction of the second base (582) (e.g., -Y direction). A groove (5818) may be formed in the first side (581C). A bar (583) of the base assembly (58) may be assembled in the groove (5818). The groove (5818) may have a shape corresponding to the end of the bar (583), but is not limited thereto. The groove (5818) may be formed in the first side portion (581-1) among the first side portion (581-1) and the second side portion (581-2).

[0165] FIGS. 10a, FIGS. 10b, FIGS. 10c, FIGS. 10d, and FIGS. 10e illustrate a first part of a first spiral arm of a hinge module. FIGS. 10b may be a view of the first part (521) of the first spiral arm (520) of FIGS. 10a in the -Z direction. FIGS. 10c may be a view of the first part (521) of the first spiral arm (520) of FIGS. 10a in the +Z direction. FIGS. 10d may be a view of the first part (521) of the first spiral arm (520) of FIGS. 10a in the -Y direction. FIGS. 10e may be a view of the first part (521) of the first spiral arm (520) of FIGS. 10a in the +Y direction.

[0166] Referring to FIGS. 10a, 10b, 10c, 10d, and 10e, the first part (521) of the first spiral arm (520) may include a first end (5211) facing the direction of the bar (583) of the base assembly (58) (e.g., +X direction) and a second end (5212) facing opposite to the first end (5211) and facing the direction of the first housing part (10) (e.g., -X direction).

[0167] In one embodiment, the first part (521) may include a first surface (521A), a second surface (521B), and an inclined surface (521C) extending from the first surface (521A) to the second surface (521B). For example, the first surface (521A) may be formed by a first end (5211). For example, the second surface (521B) may be formed by a second end (5212). For example, the inclined surface (521C) may be formed by the first end (5211) and / or the second end (5212).

[0168] In one embodiment, the first surface (521A) and the second surface (521B) may be substantially flat and parallel to each other. The first surface (521A) may be positioned lower than the second surface (521B). For example, when the first housing part (10) and the second housing part (20) are unfolded, the height of the first surface (521A) with respect to the Z-axis direction may be lower than the height of the second surface (521B). The inclined surface (521C) may be inclined to connect the first surface (521A) and the second surface (521B) having different heights.

[0169] A first guide rail (521a) may be formed in the first end (5211) to guide the rotation of the first part (521) relative to the first base (581). For example, the first guide rail (521a) may be formed on the side of the first end (5211) facing the direction of the first rotating arm (511) (e.g., +Y direction). For example, the first guide rail (521a) may be movably coupled to a guide rail formed on the third protrusion (5812c) of the first base (581). For example, the first guide rail (521a) of the first end (5211) may include a groove corresponding to the third protrusion (5812c). The first part (521) of the first spiral arm (520) can be rotatably coupled to the second part (5812) of the first base (581) through the first guide rail (521a) and the third protrusion (5812c). The first guide rail (521a) of the first part (521) and the third protrusion (5812c) of the first base (581) can form the second axis (a2) of the hinge module (50). For example, by moving the first guide rail (521a) of the first part (521) along the third protrusion (5812c) of the first base (581), the first part (521) can rotate about the second axis (a2) with respect to the first base (581).

[0170] In one embodiment, a second guide rail (521b) may be formed on the second end (5212) to guide the rotation of the first part (521) relative to the second link (542). For example, the second guide rail (521b) may be formed on the side of the second end (5212) facing the direction of the first rotating arm (511) (e.g., +Y direction). For example, the second guide rail (521b) may be movably coupled to a first guide rail (e.g., the first guide rail (542a) of FIG. 12a) formed on the second link (542). For example, the second guide rail (521b) of the second end (5212) may include a groove, and the first guide rail of the second link (542) may include a projection corresponding to the groove of the second guide rail (521b). The first part (521) of the first spiral arm (520) can be rotatably coupled to the second link (542) via the second guide rail (521b). The second guide rail (521b) of the first part (521) can form the fourth axis (a4) of the hinge module (50). For example, by moving the second guide rail (521b) of the first part (521) along the first guide rail of the second link (542), the first part (521) can rotate about the fourth axis (a4) with respect to the second link (542).

[0171] In one embodiment, a first spiral rail (521c) may be formed on the first end (5211). For example, the first spiral rail (521c) of the first end (5211) may be rotatably coupled to a first side portion of the spiral slider (550) (e.g., the first side portion (551) of FIG. 22a).

[0172] In one embodiment, a screw hole (5212h) may be formed in the second end (5212). The screw hole (5212h) of the second end (5212) may be aligned with the screw hole of the second part (522). The first part (521) may be fixedly coupled to the second part (522) through a screw that is fastened to the screw hole (5212h) of the first part (521) and the screw hole of the second part (522).

[0173] FIGS. 11a, FIGS. 11b, FIGS. 11c, FIGS. 11d, and FIGS. 11e illustrate a first part of a first spiral arm of a hinge module. FIG. 11b may be a view of the second part (522) of the first spiral arm (520) of FIG. 11a in the -Z direction. FIG. 11c may be a view of the second part (522) of the first spiral arm (520) of FIG. 11a in the +Z direction. FIG. 11d may be a view of the second part (522) of the first spiral arm (520) of FIG. 11a in the -Y direction. FIG. 11e may be a view of the second part (522) of the first spiral arm (520) of FIG. 11a in the +Y direction.

[0174] Referring to FIGS. 11a, 11b, 11c, 11d, and 11e, the second part (522) of the first spiral arm (520) may include a first end (5221) facing the direction of the bar (583) of the base assembly (58) (e.g., +X direction) and a second end (5222) facing opposite to the first end (5221) and facing the direction of the first housing part (10) (e.g., -X direction).

[0175] In one embodiment, the second part (522) may include a first surface (522A), a second surface (522B), and an inclined surface (522C) extending from the first surface (522A) to the second surface (522B). For example, the first surface (522A) may be formed by a first end (5221). For example, the second surface (522B) may be formed by a second end (5222). For example, the inclined surface (522C) may be formed by the first end (5221) and / or the second end (5222).

[0176] In one embodiment, the first surface (522A) and the second surface (522B) may be substantially flat and parallel to each other. The first surface (522A) may be positioned lower than the second surface (522B). For example, when the first housing part (10) and the second housing part (20) are unfolded, the height of the first surface (522A) with respect to the Z-axis direction may be lower than the height of the second surface (522B). The inclined surface (522C) may be inclined to connect the first surface (522A) and the second surface (522B) having different heights.

[0177] In one embodiment, the first surface (522A) of the second part (522) may form a single surface that extends without substantial step difference from the first surface (521A) of the first part (521) while the second part (522) is coupled to the first part (521). The single surface formed by the first surface (521A) of the first part (521) and the first surface (522A) of the second part (522) may be referenced as the first surface of the first spiral arm (520).

[0178] In one embodiment, the second surface (522B) of the second part (522) may form a single surface that extends without substantial step difference from the second surface (521B) of the first part (521) while the second part (522) is coupled to the first part (521). The single surface formed by the second surface (521B) of the first part (521) and the second surface (522B) of the second part (522) may be referred to as the second surface of the first spiral arm (520).

[0179] In one embodiment, the inclined surface (522C) of the second part (522) may form a single surface that extends without substantial step difference from the inclined surface (521C) of the first part (521) while the second part (522) is coupled to the first part (521). The single surface formed by the inclined surface (521C) of the first part (521) and the inclined surface (522C) of the second part (522) may be referred to as the inclined surface of the first spiral arm (520).

[0180] A first guide rail (522a) may be formed in the first end (5221) to guide the rotation of the second part (522) relative to the second base (582). For example, the first guide rail (522a) may be formed on the side of the first end (5221) opposite to the first part (521) (e.g., facing the -Y direction). For example, the first guide rail (522a) may be movably coupled to a first guide rail formed in the second base (582) (e.g., the first protrusion (582a) in FIG. 13a). For example, the first guide rail (522a) of the first end (5221) may include a groove, and the first guide rail of the second base (582) may include a projection corresponding to the groove of the first guide rail (522a). The second part (522) of the first spiral arm (520) can be rotatably coupled to the second base (582) through the first guide rail (522a) and the first guide rail of the second base (582). The first guide rail (522a) of the second part (522) and the first guide rail of the second base (582) can form a second axis (a2) of the hinge module (50). For example, by moving the first guide rail (522a) of the second part (522) along the first guide rail of the second base (582), the second part (522) can rotate about the second axis (a2) with respect to the second base (582).

[0181] In one embodiment, a second guide rail (522b) may be formed on the second end (5222) to guide the rotation of the second part (522) relative to the second link (542). For example, the second guide rail (522b) may be formed on the side of the second end (5222) opposite to the first part (521) (e.g., facing the -Y direction). For example, the second guide rail (522b) may be movably coupled to a second guide rail formed on the second link (542) (e.g., the second guide rail (542b) of FIG. 12a). For example, the second guide rail (522b) of the second end (5222) may include a groove, and the second guide rail of the second link (542) may include a projection corresponding to the groove of the second guide rail (522b). The second part (522) of the first spiral arm (520) can be rotatably coupled to the second link (542) via the second guide rail (522b). The second guide rail (522b) of the second part (522) can form the fourth axis (a4) of the hinge module (50). For example, by moving the second guide rail (522b) of the second part (522) along the second guide rail of the second link (542), the second part (522) can rotate about the fourth axis (a4) with respect to the second link (542).

[0182] In one embodiment, a second spiral rail (522c) may be formed on the first end (5221). For example, the second spiral rail (522c) of the first end (5221) may be rotatably coupled to a first side portion of the spiral slider (550) (e.g., the first side portion (551) of FIG. 22a).

[0183] In one embodiment, a screw hole (5222h) may be formed in the second end (5222). The screw hole (5222h) of the second end (5222) may be aligned with the screw hole (5212h) of the first part (521). The second part (522) may be fixedly coupled to the first part (521) through a screw that is fastened to the screw hole (5222h) of the second part (522) and the screw hole (5212h) of the first part (521).

[0184] FIGS. 12a, FIGS. 12b, and FIGS. 12c illustrate a second link of a hinge module. FIG. 12b may be a view of the second link (542) shown in FIG. 12a in the -Z direction. FIG. 12c may be a view of the second link (542) shown in FIG. 12a in the +Z direction.

[0185] Referring to FIGS. 12a, 12b, and 12c, the second link (542) may include a first part (5421), a second part (5422), and a third part (5423). The second part (5422) may extend from a portion of the first part (5421). The third part (5423) may extend from another portion of the first part (5421) and from the second part (5422).

[0186] The first part (5421) of the second link (542) may be rotatably coupled to the first part (521) of the first spiral arm (520). For example, a first guide rail (542a) may be formed on the first part (5421) of the second link (542) to guide the rotation of the second part (522) of the first spiral arm (520) relative to the second link (542). A second guide rail (521b) of the first part (521) of the first spiral arm (520) may be movably coupled to the first guide rail (542a) of the second link (542). The first guide rail (542a) of the second link (542) can form the fourth axis (a4) of the hinge module (50) together with the second guide rail (521b) of the first part (521) of the first spiral arm (520). For example, the first part (521) of the first spiral arm (520) coupled to the second link (542) can rotate around the fourth axis (a4) through the first guide rail (542a) of the second link (542) and the second guide rail (521b) of the first part (521).

[0187] The first part (5421) of the second link (542) may be rotatably coupled to the second part (522) of the first spiral arm (520). For example, a second guide rail (522b) facing the first guide rail (522a) may be formed in the first part (5421) of the second link (542). The second guide rail (522b) may guide the rotation of the second part (522) of the first spiral arm (520) relative to the second link (542). The second guide rail (522b) of the second part (522) of the first spiral arm (520) may be movably coupled to the second guide rail (542b) of the second link (542). The second guide rail (542b) of the second link (542) can form the fourth axis (a4) of the hinge module (50) together with the second guide rail (522b) of the second part (522) of the first spiral arm (520). For example, the second part (522) of the first spiral arm (520) coupled to the second link (542) can rotate around the fourth axis (a4) through the second guide rail (542b) of the second link (542) and the second guide rail (522b) of the second part (522).

[0188] In the second part (5422), first screw holes (5422h) may be formed. The second link (542) may be fixedly coupled to the first housing part (10) through screws that are respectively fastened to the first screw holes (5422h).

[0189] A second screw hole (5423h) may be formed in the third part (5423). The third part (5423) may have a smaller thickness than the second part (5422). The third part (5413) of the first link (541) may be disposed on the third part (5423) of the second link (542). Between the second part (5422) of the second link (542) and the second part (5412) of the first link (541), the third part (5423) of the second link (542) and the third part (5413) of the first link (541) may be positioned. The second screw hole (5423h) of the third part (5423) of the second link (542) and the second screw hole (5413h) of the third part (5413) of the first link (541) can be aligned. The second link (542) can be fixedly coupled to the first link (541) and the second housing part (20) through a screw fastened to the second screw hole (5423h) and the second screw hole (5413h) of the first link (541).

[0190] FIGS. 13a, FIGS. 13b, FIGS. 13c, and FIGS. 13d illustrate a second base and bar of a hinge module. FIG. 13b may be a view of the second base (582) of FIG. 13a seen in the -Z direction. FIG. 13c may be a view of the second base (582) of FIG. 13a seen in the +Z direction. FIG. 13d may be a view of the second base (582) of FIG. 13a seen in the -Y direction.

[0191] Referring to FIGS. 13a, 13b, 13c, and 13d, the second base (582) may include a first side portion (582-1) and a second side portion (582-2) opposite to the first side portion (582-1). For example, the first side portion (582-1) may face the direction of the first housing part (10) (e.g., -X direction), and the second side portion (582-2) may face the direction of the second housing part (20) (e.g., +X direction). For example, the width of the first side portion (582-1) (e.g., length along the X-axis) may be greater than the width of the second side portion (582-2) (e.g., length along the X-axis). Accordingly, referring to FIG. 13d, the center (P13) of the total width (e.g., total length along the X-axis) of the second base (582) may be located within the first side portion (582-1) among the first side portion (582-1) and the second side portion (582-2). The thickness (e.g., length along the Z-axis) of the first side portion (582-1) may be greater than the thickness of the second side portion (582-2).

[0192] In one embodiment, the bar (583) may have a shape that is symmetric with respect to the center (P13). In one embodiment, the center (P13) may pass through the bar (583). For example, though not limited, the center (P13) of the second base (582) may substantially coincide with the center of the bar (583).

[0193] For example, the bar (583) may include two parts separated by a virtual plane perpendicular to the X-axis, which includes a center (P13). For example, the two parts of the bar (583) may include a first part (5831) and a second part (5832). The first part (5831) may face, for example, the direction of the first housing part (10) (e.g., -X direction), and the second part (5832) of the bar (583) may face the direction of the second housing part (20) (e.g., +X direction). For example, the shape of the first part (5831) of the bar (583) may be symmetric to the shape of the second part (5832) of the bar (583) with respect to the virtual plane (e.g., center (P13)). Alternatively, the shape of the first part (5831) of the bar (583) may be asymmetric to the shape of the second part (5832) of the bar (583) with respect to the virtual plane (e.g., center (P13)). For example, the rotational force of the first housing part (10) transmitted to the first part (5831) of the bar (583) adjacent to the first housing part (10) may be greater than the rotational force of the second housing part (20). Conversely, the rotational force of the second housing part (20) transmitted to the second part (5832) of the bar (583) adjacent to the second housing part (20) may be greater than the rotational force of the first housing part (10). However, since the first housing part (10) is thicker than the second housing part (20), the first part (5831) of the bar (583) may have a structure capable of supporting a greater rotational force than the second part (5832) of the bar (583). For example, the thickness of the first part (5831) of the bar (583) (e.g., length along the Z-axis) may be thicker than the thickness of the second part (5832) of the bar (583) (e.g., length along the Z-axis).For example, the horizontal length (e.g., length along the X-axis) of the first part (5831) of the bar (583) may be longer than the horizontal length (e.g., length along the X-axis) of the second part (5832) of the bar (583). For example, the cross-sectional area of ​​the first part (5831) of the bar (583) may be larger than the cross-sectional area of ​​the second part (5832) of the bar (583).

[0194] Referring again to FIG. 13a, FIG. 13b, FIG. 13c, and FIG. 13d, the second base (582) may include an upper surface (582A). The upper surface (582A) may face, for example, the fourth part (64) of the display (60) in an unfolded state of the first housing part (10) and the second housing part (20). For example, the upper surface (582A) may include a first region that is substantially flat and a second region formed by a curved surface that is recessed from the first region. The first region of the upper surface (582A) that is substantially flat may support the fourth part (64) of the display (60) in an unfolded state of the first housing part (10) and the second housing part (20). The fourth part (64) of the display (60) can be partially accommodated within the recess (582B) formed by the second area of ​​the upper surface (582A) while the first housing part (10) and the second housing part (20) are folded.

[0195] In one embodiment, the upper surface (582A) of the second base (582) may be formed by the first side portion (582-1) and the second side portion (582-2). For example, the area of ​​the upper surface (582A) formed by the first side portion (582-1) may be larger than the area of ​​the upper surface (582-A) formed by the second side portion (582-2). Additionally, the area of ​​the recess (582B) formed by the first side portion (582-1) may be larger than the area of ​​the recess (582B) formed by the second side portion (582-2).

[0196] In one embodiment, the first side portion (582-1) may include a first protruding portion (582a) protruding in the direction of the first side portion (581-1) of the first base (581) (e.g., +Y direction), and the second side portion (582-2) may include a second protruding portion (582b) protruding in the direction of the second side portion (581-2) of the first base (581) (e.g., +Y direction). For example, the first protruding portion (582a) of the second base (582) may face the third protruding portion (5812c) of the first base (581). For example, the first protruding portion (582a) of the second base (582) may be aligned along the Y-axis direction with the third protruding portion (5812c) of the first base (581). For example, the second protrusion (582b) of the second base (582) may face the fourth protrusion (5812d) of the first base (581). For example, the second protrusion (582b) of the second base (582) may be aligned along the Y-axis direction with the fourth protrusion (5812d) of the first base (581).

[0197] When the second base (582) is viewed from above (e.g., FIG. 13b), a bar (583) may be positioned between the first protrusion (582a) and the second protrusion (582b). The distance from the bar (583) (or center (P13)) to the first protrusion (582a) may be smaller than the distance from the bar (583) (or center (P13)) to the second protrusion (582b). For example, the distance from the bar (583) (or center (P13)) to the center of the first protrusion (582a) (e.g., the second axis (a2)) may be smaller than the distance from the bar (583) (or center (P13)) to the center of the second protrusion (582b) (e.g., the axis (b)).

[0198] In one embodiment, a second part (522) of the first spiral arm (520) may be rotatably coupled to the first side portion (582-1). For example, the second part (522) of the first spiral arm (520) may be rotatably coupled to a first protruding portion (582a) of the first side portion (582-1). For example, the first protruding portion (582a) may guide the rotation of the second part (522) of the first spiral arm (520) relative to the second base (582). A first guide rail (522a) of the second part (522) of the first spiral arm (520) may be movably coupled to the first protruding portion (582a). The first guide rail (522a) of the second part (522) of the first spiral arm (520) can rotate relative to the second base (582) by moving along the first protruding part (582a) of the second base (582). The first protruding part (582a), together with the first guide rail (522a) of the second part (522) of the first spiral arm (520), can form a second axis (a2) of the hinge module (50). For example, the second part (522) of the first spiral arm (520) can rotate around the second axis (a2) through the first protruding part (582a) of the second base (582) and the first guide rail (522a) of the first spiral arm (520).

[0199] In one embodiment, a second part (532) of a second spiral arm (530) may be rotatably coupled to a second side portion (582-2) of a second base (582). For example, the second part (532) of the second spiral arm (530) may be rotatably coupled to a second protruding portion (582b) of the second side portion (582-2). For example, the second protruding portion (582b) may guide the rotation of the second part (532) of the second spiral arm (530) with respect to the second base (582), at least partially. For example, a guide rail of the second part (532) of the second spiral arm (530) may be movably coupled to a guide rail defined by the second protruding portion (582b) and the hinge housing (15). The second part (532) of the second spiral arm (530) can rotate about the second base (582) by moving along the guide rail, which is at least partially defined by the second protruding part (582b). The second protruding part (582b), together with the guide rail of the second part (532) of the second spiral arm (530), can form the axis (b) of the hinge module (50). For example, the second part (532) of the second spiral arm (530) can rotate about the axis (b) through the guide rail provided by the second protruding part (582b) of the second base (582).

[0200] In one embodiment, the second base (582) may include one or more screw holes for fixing the second base (582) to the hinge housing (15). For example, the second base (582) may include screw holes (582h). The screw holes (582h) may be located in the first side portion (582-1). The screw holes (582h) may be aligned along the Y-axis. The screw holes (582h) (e.g., the center of each screw hole (582h)) may be positioned so as to be biased toward the direction of the first housing part (10) (e.g., -X direction) and the direction of the second housing part (20) (e.g., +X direction) with respect to a line segment passing through the center of the bar (583) and parallel to the Y-axis. The second base (582) can be fixedly coupled to the hinge housing (15) through a screw that is fastened to the hinge housing (15) through screw holes (582h).

[0201] FIGS. 14a, FIGS. 14b, and FIGS. 14c are drawings illustrating the operation of the left hinge of the hinge module. FIG. 14b may correspond, for example, to line A-A' of FIG. 4a, and FIG. 14c may correspond, for example, to line B-B' of FIG. 4a.

[0202] Referring to FIG. 14a, the first link (541) and the second link (542) of the hinge module (50) may be configured to be rotatable within a first angle range (A1). The hinge module (50) may be configured to rotate the first housing part (10), which is fixedly coupled to the first link (541) and the second link (542), within the first angle range (A1). Accordingly, the hinge module (50) may be configured to switch the state of the electronic device (1) between the unfolded state and the single folded state. The first angle range (A1) may be, for example, about 0 degrees to about 90 degrees. The lower limit of the first angle range (A1) may be defined in a direction substantially parallel to the X-axis or the XY plane.

[0203] Referring to FIG. 14b, the first rotating arm (511) of the hinge module (50) may be configured to rotate within a second angle range (A2) while the first link (541) (and / or the first housing part (10)) rotates within a first angle range (A1) (e.g., around the first axis (a1)). For example, the second angle range (A2) may differ from the first angle range (A1). For example, the second angle range (A2) may be wider than the first angle range (A1). For example, the second angle range (A2) may be from about 0 degrees to about 110 degrees. The lower limit of the second angle range (A2) may be defined in a direction substantially parallel to the X-axis or the XY plane.

[0204] Referring to FIG. 14c, the first spiral arm (520) of the hinge module (50) may be configured to rotate within a third angle range (A3) while the second link (542) (and / or the first housing part (10)) rotates within a first angle range (A1) (e.g., around a second axis (a2)). For example, the third angle range (A3) may be different from the first angle range (A1). For example, the third angle range (A3) may be different from the second angle range (A2). For example, the third angle range (A3) may be narrower than the first angle range (A1). For example, the third angle range (A3) may be narrower than the second angle range (A2). For example, the third angle range (A3) may be about 0 degrees to about 80 degrees. The lower limit of the third angle range (A3) can be defined in a direction substantially parallel to the X-axis or XY plane.

[0205] FIGS. 15a and FIGS. 15b show the operation of the hinge module.

[0206] Referring to FIGS. 15a and 15b, the second rotating arm (512) of the hinge module (50) may be configured to rotate within an angle range (B) while the first link (541) and the second link (542) rotate within a first angle range (A1). The second rotating arm (512) of the hinge module (50) may be configured to rotate within an angle range (B) while the first housing part (10) rotates within a first angle range (A1).

[0207] The second spiral arm (530) of the hinge module (50) may be configured to rotate within an angle range (B) while the first link (541) and the second link (542) rotate within a first angle range (A1). The second spiral arm (530) of the hinge module (50) may be configured to rotate within an angle range (B) while the first housing part (10) rotates within a first angle range (A1).

[0208] In one embodiment, the hinge module (50) may be configured to rotate the second housing part (20), which is fixedly coupled to the second rotating arm (512) and the second spiral arm (530), within an angle range (B) while the first housing part (10) rotates within a first angle range (A1).

[0209] For example, the angle range (B) may differ from the second angle range (A2). For example, the angle range (B) may differ from the third angle range (A3). For example, the angle range (B) may be substantially the same as the first angle range (A1). For example, the angle range (B) may be from about 0 degrees to about 90 degrees. The lower limit of the angle range (B) may be defined in a direction substantially parallel to the X-axis or the XY plane.

[0210] FIGS. 16a, FIGS. 16b, FIGS. 16c, and FIGS. 16d illustrate a second rotating arm of a hinge module. FIG. 16b may be a view of the second rotating arm (512) of FIG. 16a seen in the -Z direction. FIG. 16c may be a view of the second rotating arm (512) of FIG. 16a seen in the +Z direction. FIG. 16d may be a view of the second rotating arm (512) of FIG. 16a seen in the -Y direction.

[0211] Referring to FIGS. 16a, 16b, and 16c, the second rotating arm (512) may include a first end (5121) and a second end (5122) opposite to the first end (5121). For example, the first end (5121) may face the direction of the first base (581) (e.g., -X direction), and the second end (5122) may face the direction of the second housing part (20) (e.g., +X direction).

[0212] A guide rail (512a) may be formed at the first end (5121) of the second rotating arm (512) to guide the rotation of the second rotating arm (512) relative to the first base (581). For example, the first end (5121) may be rotatably coupled to the first base (581) in such a manner that the guide rail (512a) is assembled to second protrusions (5811b and 5812b) formed on the second side portion (581-2) of the first base (581). For example, the guide rail (512a) may include a projection. For example, the guide rail (512a) of the second rotating arm (512) can be accommodated in the space between the second protrusion (5811b) of the first base (581) and the hinge housing (15), and can move within the space between the second protrusion (5812b) of the first base (581) and the hinge housing (15). The guide rail (512a) of the second rotating arm (512) can form an axis (b). For example, the second rotating arm (512) can rotate around the axis (b) formed by the guide rail (512a).

[0213] The second end (5122) of the second rotating arm (512) can be fixedly coupled to the second housing part (20). For example, the second end (5122) of the second rotating arm (512) can be fixedly coupled to the second housing part (20) through screws that are fastened to the second housing part (20) through screw holes (512h) formed in the second end (5122).

[0214] In one embodiment, the second rotating arm (512) may include a substantially flat support surface (512A). The support surface (512A) may be formed by the first end (5121) and the second end (5122) of the second rotating arm (512). The support surface (512A) may support a portion of the display (60) (e.g., a fourth portion (64)) while the first housing part (10) and the second housing part (20) are unfolded.

[0215] Referring to FIGS. 16c and 16d, the second rotating arm (512) may include screw bosses (512c) protruding from a surface (512B) opposite to the support surface (512A). The screw bosses (512c) may each define screw holes (512h).

[0216] FIGS. 17a, FIGS. 17b, FIGS. 17c, FIGS. 17d, and FIGS. 17e illustrate a first part of a first spiral arm of a hinge module. FIG. 17b may be a view of the first part (531) of the second spiral arm (530) of FIG. 17a in the -Z direction. FIG. 17c may be a view of the first part (531) of the second spiral arm (530) of FIG. 17a in the +Z direction. FIG. 17d may be a view of the first part (531) of the second spiral arm (530) of FIG. 17a in the -Y direction. FIG. 17e may be a view of the first part (531) of the second spiral arm (530) of FIG. 17a in the +Y direction.

[0217] Referring to FIGS. 17a, 17b, 17c, 17d, and 17e, the first part (531) of the second spiral arm (530) may include a first end (5311) facing the direction of the bar (583) of the base assembly (58) (e.g., -X direction) and a second end (5312) facing opposite to the first end (5311) and facing the direction of the second housing part (20) (e.g., +X direction).

[0218] In one embodiment, the first part (531) may include a first support surface (531A). The first support surface (531A) may be formed by a first end (5311) and a second end (5312). In one embodiment, the first support surface (531A) may be substantially flat. The first support surface (531A) may support a portion of the display (60) (e.g., a fourth portion (64)) while the first housing part (10) and the second housing part (20) are unfolded.

[0219] In one embodiment, a guide rail (531a) may be formed on the first end (5311) to guide the rotation of the first part (531) relative to the first base (581). For example, the guide rail (531a) may be formed on the side of the first end (5311) facing the direction of the second rotating arm (512) (e.g., +Y direction). For example, the guide rail (531a) may be rotatably coupled to the second side portion (581-2) of the first base (581). For example, the guide rail (531a) may include a projection. For example, the guide rail (531a) may be accommodated within the space between the fourth protruding portion (5812d) of the first base (581) and a part of the hinge housing (15), and may be movable within said space. In one embodiment, the guide rail (531a) of the first part (531) can form an axis (b). For example, the first part (531) of the second spiral arm (530) can rotate around the axis (b) formed by the guide rail (531a).

[0220] In one embodiment, a first spiral rail (531b) may be formed on the first end (5311). For example, the first spiral rail (531b) of the first end (5311) may be rotatably coupled to the second side portion (552) of the spiral slider (550).

[0221] The second end (5312) of the first part (531) can be fixedly coupled to the second housing part (20). For example, the first part (531) can be fixedly coupled to the second housing part (20) through screws that are fastened to the second housing part (20) through a screw hole (531h) formed in the second end (5312).

[0222] The first part (531) may include a projection (531d) formed on the side of the second end (5312) facing the direction (e.g., -Y direction) of the second part (532) of the second spiral arm (530). The projection (531d) of the first part (531) may be coupled to the second part (532).

[0223] Referring to FIG. 17d and FIG. 17e, the first part (531) of the second spiral arm (530) may include a screw boss (531c) protruding from a surface (531B) opposite to the support surface (531A). The screw boss (531c) may define a screw hole (531h).

[0224] FIGS. 18a, FIGS. 18b, FIGS. 18c, FIGS. 18d, and FIGS. 18e illustrate a first part of a first spiral arm of a hinge module. FIG. 18b may be a view of the second part (532) of the second spiral arm (530) of FIG. 18a in the -Z direction. FIG. 18c may be a view of the second part (532) of the second spiral arm (530) of FIG. 18a in the +Z direction. FIG. 18d may be a view of the second part (532) of the second spiral arm (530) of FIG. 18a in the -Y direction. FIG. 18e may be a view of the second part (532) of the second spiral arm (530) of FIG. 18a in the +Y direction.

[0225] Referring to FIGS. 18a, 18b, 18c, 18d, and 18e, the second part (532) of the second spiral arm (530) may include a first end (5321) facing the direction of the bar (583) of the base assembly (58) (e.g., -X direction) and a second end (5322) facing opposite to the first end (5321) and facing the direction of the second housing part (20) (e.g., +X direction).

[0226] In one embodiment, the second part (532) may include a second support surface (532A). The second support surface (532A) may be formed by a first end (5321) and a second end (5322). In one embodiment, the second support surface (532A) may be substantially flat. The second support surface (532A) may support a portion of the display (60) (e.g., a fourth portion (64)) while the first housing part (10) and the second housing part (20) are unfolded. While the second part (532) is coupled to the first part (531), the second support surface (532A) of the second part (532) may extend from the first support surface (531A) of the first part (531) without substantial step. The first support surface (531A) of the first part (531) and the second support surface (532A) of the second part (532) can be referenced as support surfaces of the second spiral arm (530).

[0227] In one embodiment, a guide rail (532a) may be formed on the first end (5321) to guide the rotation of the second part (532) relative to the second base (582). For example, the guide rail (532a) may be formed on the side of the first end (5321) opposite to the first part (531) (e.g., facing the -Y direction). For example, the guide rail (532a) may be rotatably coupled to the second side portion (582-2) of the second base (582). For example, the guide rail (532a) may include a projection. For example, the guide rail (532a) may be accommodated within the space between the second protruding portion (582b) of the second base (582) and a part of the hinge housing (15), and may be movable within said space. In one embodiment, the guide rail (532a) of the second part (532) can form an axis (b). For example, the second part (532) of the second spiral arm (530) can rotate around the axis (b) formed by the guide rail (532a).

[0228] In one embodiment, a second spiral rail (532b) may be formed on the first end (5321). For example, the second spiral rail (532b) of the first end (5321) may be rotatably coupled to the second side portion (552) of the spiral slider (550).

[0229] The second end (5322) of the second part (532) can be fixedly coupled to the second housing part (20). For example, the second part (532) can be fixedly coupled to the second housing part (20) through screws that are fastened to the second housing part (20) through a screw hole (532h) formed in the second end (5322).

[0230] A groove (532d) may be formed in the second end (5322) of the second part (532) to receive a projection (531d) of the first part (531) of the second spiral arm (530). By the combination of the groove (532d) and the projection (531d), the rotation of the first part (531) and the second part (532) of the second spiral arm (530) may be synchronized.

[0231] Referring to FIG. 18d and FIG. 18e, the second part (532) of the second spiral arm (530) may include a screw boss (532c) protruding from a surface (532B) opposite to the support surface (532A). The screw boss (532c) may define a screw hole (532h).

[0232] FIGS. 19a, FIGS. 19b, and FIGS. 19c illustrate a hinge housing of a hinge module. FIG. 19b may be a view of the hinge housing (15) of FIG. 19a in the -Z direction. FIG. 19c may be a view of the hinge housing (15) of FIG. 19a in the +Y direction or the -Y direction.

[0233] Referring to FIGS. 19a and 19b, the hinge housing (15) may include a first side portion (15-1) and a second side portion (15-2) opposite to the first side portion (15-1). The first side portion (15-1) may face the direction of the first housing part (10) (e.g., -X direction), and the second side portion (15-2) may face the direction of the second housing part (20) (e.g., +X direction).

[0234] In one embodiment, the hinge housing (15) may include screw bosses (151h, 152h, and 153h) protruding from the inner surface of the first side portion (15-1). The screw bosses (151h, 152h, and 153h) may be aligned along the Y-axis and positioned sequentially along the -Y direction.

[0235] In one embodiment, a first base (581) may be seated within the hinge housing (15). For example, a first side portion (581-1) of the first base (581) may be received within the first side portion (15-1) of the hinge housing (15). A second side portion (581-2) of the first base (581) may be received within the second side portion (15-2) of the hinge housing (15). Screw holes (5812h and 5813h) located in the first side portion (581-1) of the first base (581) may be aligned with screw bosses (152h and 151h) located in the first side portion (15-1) of the hinge housing (15), respectively. The first screw is fastened to the first screw boss (151h) of the hinge housing (15) through the second screw hole (5813h) of the first base (581), and the second screw is fastened to the second screw boss (152h) of the hinge housing (15) through the first screw hole (5812h) of the first base (581), so that the first base (581) can be fixedly coupled to the hinge housing (15).

[0236] In one embodiment, a second base (582) may be seated within the hinge housing (15). For example, a first side portion (582-1) of the second base (582) may be received within the first side portion (15-1) of the hinge housing (15). A second side portion (582-2) of the second base (582) may be received within the second side portion (15-2) of the hinge housing (15). Screw holes (582h) located in the first side portion (582-1) of the second base (582) may be aligned with a third screw boss (153h) located in the first side portion (15-1) of the hinge housing (15). The screws are each fastened to the third screw boss (153h) of the hinge housing (15) through the screw holes (582h) of the second base (582), so that the second base (582) can be fixedly coupled to the hinge housing (15).

[0237] Referring to FIG. 19c, in one embodiment, the center (P19) of the total width (e.g., total length along the X-axis) of the hinge housing (15) may be defined. In one embodiment, the width (e.g., length along the X-axis) of the first side portion (15-1) may be larger than the width (e.g., length along the X-axis) of the second side portion (15-2). Accordingly, the center (P19) may be located within the first side portion (15-1) among the first side portion (15-1) and the second side portion (15-2) of the hinge housing (15). For example, though not limited, the center (P19) of the hinge housing (15) may substantially coincide with the center (P9) of the first base (581) and the second base (582) described above. The thickness of the first side portion (15-1) (e.g., length along the Z-axis) may be greater than the thickness of the second side portion (15-2).

[0238] FIG. 20a shows an electronic device in an unfolded state. FIG. 20b and FIG. 20c show electronic devices in a single folded state or a multiple folded state.

[0239] Referring to FIG. 20a, within the unfolded state of the electronic device (1), a virtual line (B6) may be defined, which is a boundary line (or boundary surface) between the first side part (15-1) and the second side part (15-2) of the hinge housing (15) and / or a boundary line (or boundary surface) between the first housing part (10) and the second housing part (20).

[0240] In the unfolded state of the first housing part (10) and the second housing part (20), the axis (b) for the second housing part (20) may be closer to the imaginary line (B6) than the first axis (a1) for the first housing part (10). For example, the distance between the axis (b) for the second housing part (20) and the first housing part (10) (e.g., distance along the X-axis) may be smaller than the distance between the first axis (a1) for the first housing part (10) and the second housing part (20) (e.g., distance along the X-axis).

[0241] In one embodiment, the first housing part (10) may include a side portion (10S) facing the direction of the second housing part (20) (e.g., + X direction). The second housing part (20) may include a side portion (20S) facing the direction of the first housing part (10) (e.g., - X direction). The side portion (10S) of the first housing part (10) may be configured to cover or expose to the outside at least a portion of the first side portion (15-1) of the hinge housing (15) according to a change in the state of the electronic device (1). Additionally, the side portion (20S) of the second housing part (20) may be configured to cover or expose to the outside at least a portion of the second side portion (15-2) of the hinge housing (15) according to a change in the state of the electronic device (1). For example, referring to FIG. 20a, in the unfolded state of the first housing part (10) and the second housing part (20), the at least part of the first side part (15-1) of the hinge housing (15) may be covered by the side part (10S) of the first housing part (10), and the at least part of the second side part (15-2) of the hinge housing (15) may be covered by the side part (20S) of the second housing part (20). Accordingly, in the unfolded state of the first housing part (10) and the second housing part (20), the at least part of the first side part (15-1) of the hinge housing (15) may not be exposed outside the electronic device (1), and the at least part of the second side part (15-2) of the hinge housing (15) may not be exposed outside the electronic device (1).In contrast, referring to FIG. 20b, when the first housing part (10) and the second housing part (20) are in a folded state, the at least part of the first side part (15-1) of the hinge housing (15) may be exposed outside the electronic device (1) without being covered by the first housing part (10), and the at least part of the second side part (15-2) of the hinge housing (15) may be exposed outside the electronic device (1) without being covered by the second housing part (20).

[0242] Referring to FIG. 20b, in a folded state of the first housing part (10) and the second housing part (20), a first virtual plane (P20a) may be defined that includes a first axis (a1) and is substantially parallel to the first seating surface (10A) of the first housing part (10). Additionally, in a folded state of the first housing part (10) and the second housing part (20), a second virtual plane (P20b) may be defined that includes an axis (b) and is substantially parallel to the second seating surface (20A) of the second housing part (20).

[0243] In one embodiment, the first distance (e.g., distance along the X-axis) between the first virtual plane (P20a) and the first seating surface (10A) of the first housing part (10) may be greater than the second distance (e.g., distance along the X-axis) between the second virtual plane (P20b) and the second seating surface (20A) of the second housing part (20).

[0244] In one embodiment, the first distance may be greater than the distance between the second virtual plane (P20b) and the first seating surface (10A) of the first housing part (10) (e.g., distance along the X-axis).

[0245] Referring to FIG. 20c, in a folded state of the first housing part (10) and the second housing part (20), a third virtual plane (P20c) may be defined that extends parallel to the first seating surface (10A) of the first housing part (10) and / or the second seating surface (20A) of the second housing part (20) from the center (e.g., center (P19)) of the hinge housing (15).

[0246] Between the third virtual plane (P20c) and the second mounting surface (20A) of the second housing part (20), the first mounting surface (10A) of the first housing part (10) may be located. For example, the first mounting surface (10A) of the first housing part (10) may be positioned so as to be offset from the third virtual plane (P20c) in the direction of the second housing part (20) (e.g., +X direction).

[0247] Figure 21 is a drawing showing an asymmetric spiral interlocking structure.

[0248] Referring to FIG. 21, the asymmetric spiral linkage structure may include a spiral slider (212), a first spiral arm (214) rotatably coupled to one side of the spiral slider (212), and a second spiral arm (216) rotatably coupled to the other side of the spiral slider (212).

[0249] When the movement of the first spiral arm (214) and the second spiral arm (216) in a vertical direction (e.g., direction (D21)) is restricted, as the first spiral arm (214) and the second spiral arm (216) rotate relative to the spiral slider (212), the spiral slider (212) can move in direction (D21).

[0250] The first spiral rail on one side of the spiral slider (212) to which the first spiral arm (214) is coupled may be configured so that the spiral slider (212) moves by a length (L21) in the direction (D21) when the first spiral arm (214) rotates at a first angle (A21). The second spiral rail on the other side of the spiral slider (212) to which the second spiral arm (216) is coupled may be configured so that the spiral slider (212) moves by a length (L21) in the direction (D21) when the second spiral arm (216) rotates at a second angle (B21).

[0251] By forming the first spiral rail and the second spiral rail of the spiral slider (212) to correspond to the first angle (A21) and the second angle (B21), respectively, the spiral slider (212) can move by a length (L21) even if the first angle (A21) and the second angle (B21) are different.

[0252] The description of the spiral slider (212), the first spiral arm (214), and the second spiral arm (216) described above may be applied to the spiral slider (550), the first spiral arm (520), and the second spiral arm (530) of the hinge module (50) in substantially the same, similar, or corresponding manner.

[0253] FIGS. 22a and FIGS. 22b show a spiral slider of a hinge module. FIG. 22c shows a hinge module. FIG. 22b is a view of the spiral slider (550) of FIG. 22a in the -Y direction.

[0254] Referring to FIGS. 22a and 22b, the spiral slider (550) may include a first side portion (551), a second side portion (552), and a guide portion (553) between the first side portion (551) and the second side portion (552). A first spiral rail (550a) may be formed on the first side portion (551), and a second spiral rail (550b) may be formed on the second side portion (552). A spiral rail of a first spiral arm (520) (e.g., spiral rails (521c and 522c)) may be movably coupled to the first spiral rail (550a) of the first side portion (551). In the second spiral rail (550b) of the second side portion (552), the spiral rail of the second spiral arm (530) (e.g., spiral rails (531b and 532b)) can be movably coupled.

[0255] The length and shape of the first spiral rail (550a) of the first side portion (551) of the spiral slider (550) may be determined based on the position of the second axis (a2) of the first spiral arm (520), the second radius of rotation (r2), and the third angle range (A3) in which the first spiral arm (520) rotates. The length and shape of the second spiral rail (550b) of the second side portion (552) of the spiral slider (550) may be determined based on the position of the axis (b) of the second spiral arm (530), the radius of rotation of the second spiral arm (530) with respect to the axis (b), and the angle range (B) in which the second spiral arm (530) rotates. For example, the length and / or shape of the first spiral rail (550a) may be different from the length and / or shape of the second spiral rail (550b).

[0256] In one embodiment, the first side portion (551) of the spiral slider (550) may form a first upper surface (551A), and the second side portion (552) of the spiral slider (550) may form a second upper surface (552A). Each of the first upper surface (551A) and the second upper surface (552A) may be formed substantially flat.

[0257] Referring to FIG. 22b, the first upper surface (551A) may be located at a lower position than the second upper surface (552A). For example, with respect to the Z axis, the first upper surface (551A) may be located in the -Z direction of the second upper surface (552A).

[0258] In one embodiment, a bar (583) of a base assembly (58) may be disposed on a guide portion (553) of a spiral slider (550). The guide portion (553), together with a first side portion (551) and a second side portion (552), may form a guide groove (550c) for receiving the bar (583).

[0259] Referring to FIG. 22c, in the open state (e.g., the unfolded state) of the hinge module (50), the first upper surface (551A) of the spiral slider (550) may extend without substantial step from the first surface (521A) of the first part (521) of the first spiral arm (520) and the first surface (522A) of the second part (522) of the first spiral arm (520). In the open state (e.g., the unfolded state) of the hinge module (50), the second upper surface (552A) of the spiral slider (550) may extend without substantial step from the first surface (531A) of the first part (531) of the second spiral arm (530) and the first surface (532A) of the second part (532) of the second spiral arm (530). In the unfolded state of the electronic device (1), the second upper surface (552A) of the spiral slider (550) can support a part of the display (60) (e.g., a fourth part (64)).

[0260] FIG. 23a shows a spiral slider housed within a hinge housing. FIG. 23b is a cross-sectional view along line 23B-23B' of FIG. 23a.

[0261] Referring to FIG. 23a, the spiral slider (550) may be slidably coupled to a bar (583). For example, the linear moving path of the spiral slider (550) may be guided by the bar (583). For example, the spiral slider (550) may move along the bar (583) in the direction (D32) or the opposite direction of the direction (D32). The movement of the spiral slider (550) in the opposite direction of the direction (D32) or direction (D3) may cause rotation of the first spiral arm (520) and the second spiral arm (530) coupled to the spiral slider (550). Conversely, the rotation of the first spiral arm (520) and the second spiral arm (530) may cause movement of the spiral slider (550) in the opposite direction of the direction (D32) or direction (D3).

[0262] Referring to FIG. 23b, the spiral slider (550) may be positioned within the hinge housing (15). For example, the guide portion (553) of the spiral slider (550) may be positioned on the first side portion (15-1) of the hinge housing (15). A bar (583) may be received within the guide groove (550c) of the spiral slider (550). The bar (583) may prevent the spiral slider (550) from coming off. The guide portion (553) of the spiral slider (550) may be positioned between the bar (583) and the first side portion (15-1) of the hinge housing (15).

[0263] FIGS. 24a, FIGS. 24b, FIGS. 24c, FIGS. 24d, and FIGS. 24e are drawings illustrating the operation of a hinge module. FIGS. 24a, FIGS. 24b, FIGS. 24c, FIGS. 24d, and FIGS. 24e can each correspond to line B-B' of FIG. 4a.

[0264] FIGS. 24a, FIGS. 24b, FIGS. 24c, FIGS. 24d, and FIGS. 24e show different positions of the hinge module (50).

[0265] For example, FIG. 24a shows the first position of the hinge module (50) in the unfolded state of the first housing part (10) and the second housing part (20).

[0266] For example, FIG. 24b may indicate a second position of the hinge module (50). For example, referring to FIG. 23a, the second position may be a position in which the spiral slider (550) of the hinge module (50) is moved by a first distance (e.g., about 0.375 mm) in the direction (D32) from the position of the spiral slider (550) of the first position. By moving the spiral slider (550), the first spiral arm (520) and the second spiral arm (530) may each rotate.

[0267] Referring to FIG. 24b, when the hinge module (50) transitions from the first position to the second position, the first spiral arm (520) can rotate by a first angle (a241). For example, the first spiral arm (520) can rotate clockwise by a first angle (a241) from a reference plane (e.g., a plane parallel to the X-axis).

[0268] When the hinge module (50) transitions from the first position to the second position, the second spiral arm (530) can rotate by a first angle (b241). For example, the second spiral arm (530) can rotate by a first angle (b241) counterclockwise from the reference plane.

[0269] While the spiral slider (550) moves only the first distance, the first angle (a241) at which the first spiral arm (520) rotates and the first angle (b241) at which the second spiral arm (530) rotates may be different. For example, when transitioning from the first position to the second position, the rotational speed of the first spiral arm (520) and the rotational speed of the second spiral arm (530) may be different. For example, when transitioning from the first position to the second position, the rotational speed of the first spiral arm (520) may be slower than the rotational speed of the second spiral arm (530). For example, the first angle (a241) may be about 20 degrees, and the first angle (b241) may be about 22.5 degrees.

[0270] FIG. 24c may show a third position of the hinge module (50). For example, the third position may be a position in which the spiral slider (550) of the hinge module (50) is moved further in the direction (D32) by the first distance from the position of the spiral slider (550) of the second position. For example, the third position may be a position in which the spiral slider (550) of the hinge module (50) is moved by a second distance (e.g., about 0.75 mm) in the direction (D32) from the position of the spiral slider (550) of the first position, which is twice the first distance.

[0271] Referring to FIG. 24c, when the hinge module (50) transitions from the first position to the third position, the first spiral arm (520) can rotate by a second angle (a242). For example, the first spiral arm (520) can rotate clockwise by a second angle (a242) from the reference plane.

[0272] When the hinge module (50) transitions from the first position to the third position, the second spiral arm (530) can rotate by a second angle (b242). For example, the second spiral arm (530) can rotate by a second angle (b242) counterclockwise from the reference plane.

[0273] While the spiral slider (550) moves by the second distance, the second angle (a242) at which the first spiral arm (520) rotates and the second angle (b242) at which the second spiral arm (530) rotates may be different. For example, when transitioning from the first position to the third position, the rotational speed of the first spiral arm (520) and the rotational speed of the second spiral arm (530) may be different. For example, when transitioning from the first position to the third position, the rotational speed of the first spiral arm (520) may be slower than the rotational speed of the second spiral arm (530). For example, the second angle (a242) may be about 40 degrees, and the second angle (b242) may be about 45 degrees.

[0274] FIG. 24d may show a fourth position of the hinge module (50). For example, the fourth position may be a position in which the spiral slider (550) of the hinge module (50) is moved further in the direction (D32) by the first distance from the position of the spiral slider (550) of the third position. For example, the fourth position may be a position in which the spiral slider (550) of the hinge module (50) is moved by a third distance (e.g., about 1.125 mm) corresponding to three times the first distance in the direction (D32) from the position of the spiral slider (550) of the first position.

[0275] Referring to FIG. 24d, when the hinge module (50) transitions from the first position to the fourth position, the first spiral arm (520) can rotate by a third angle (a243). For example, the first spiral arm (520) can rotate clockwise by a third angle (a243) from the reference plane.

[0276] When the hinge module (50) transitions from the first position to the fourth position, the second spiral arm (530) can rotate by a third angle (b243). For example, the second spiral arm (530) can rotate by a third angle (b243) counterclockwise from the reference plane.

[0277] While the spiral slider (550) moves by the third distance, the third angle (a243) at which the first spiral arm (520) rotates and the third angle (b243) at which the second spiral arm (530) rotates may be different. For example, when transitioning from the first position to the fourth position, the rotational speed of the first spiral arm (520) and the rotational speed of the second spiral arm (530) may be different. For example, when transitioning from the first position to the fourth position, the rotational speed of the first spiral arm (520) may be slower than the rotational speed of the second spiral arm (530). For example, the third angle (a243) may be about 60 degrees, and the third angle (b243) may be about 67.5 degrees.

[0278] FIG. 24e may show a fifth position of the hinge module (50). For example, the fifth position may be a position of the hinge module (50) in a folded state with the first housing part (10) and the second housing part (20). For example, the fifth position may be a position in which the spiral slider (550) of the hinge module (50) is moved further by the first distance in the direction (D32) from the position of the spiral slider (550) of the fourth position. For example, the fifth position may be a position in which the spiral slider (550) of the hinge module (50) is moved by a fourth distance (e.g., about 1.5 mm) corresponding to four times the first distance in the direction (D32) from the position of the spiral slider (550) of the first position.

[0279] Referring to FIG. 24e, when the hinge module (50) transitions from the first position to the fifth position, the first spiral arm (520) can rotate by a fourth angle (a244). For example, the first spiral arm (520) can rotate clockwise by a fourth angle (a244) from the reference plane.

[0280] When the hinge module (50) transitions from the first position to the fifth position, the second spiral arm (530) can rotate by a fourth angle (b244). For example, the second spiral arm (530) can rotate by a fourth angle (b244) counterclockwise from the reference plane.

[0281] While the spiral slider (550) moves by the third distance, the fourth angle (a244) at which the first spiral arm (520) rotates and the fourth angle (b244) at which the second spiral arm (530) rotates may be different. For example, when transitioning from the first position to the fifth position, the rotational speed of the first spiral arm (520) and the rotational speed of the second spiral arm (530) may be different. For example, when transitioning from the first position to the fifth position, the rotational speed of the first spiral arm (520) may be slower than the rotational speed of the second spiral arm (530). For example, the fourth angle (a244) may be about 80 degrees, and the fourth angle (b244) may be about 90 degrees.

[0282] In one embodiment, the first hinge part and the second hinge part of the hinge module (50) may have an asymmetric structure. For example, the rotation radius of the first hinge part of the hinge module (50) may be different from the rotation radius of the second hinge part of the hinge module (50). For example, the rotation radius of the first hinge part of the hinge module (50) may be smaller than the rotation radius of the second hinge part of the hinge module (50). For example, referring to FIG. 24c, the rotation radius (R1) of the first hinge part including the first spiral arm (520) and the second link (542) may be different from the rotation radius (R2) of the second hinge part including the second spiral arm (530). For example, the rotation radius (R1) of the first hinge part may be smaller than the rotation radius (R2) of the second hinge part.

[0283] For example, the radius of rotation (R1) of the first hinge part may be the distance between the axis of rotation of the first hinge part (e.g., the first axis (a1) and / or the second axis (a2)) and a specific point of the first hinge part furthest from the axis of rotation (e.g., a specific point of the first link (541) furthest from the first axis (a1) and / or a specific point of the second link (542) furthest from the second axis (a2).

[0284] For example, the rotation radius (R2) of the second hinge part may be the distance between the rotation axis of the second hinge part (e.g., axis (b)) and a specific point of the second hinge part furthest from the rotation axis (e.g., a specific point of the second rotating arm (512) furthest from the axis (b2) and / or a specific point of the second spiral arm (530) furthest from the axis (b2).

[0285] FIGS. 25a, FIGS. 25b, FIGS. 25c, FIGS. 25d, and FIGS. 25e show the states of the electronic device according to the positions of the hinge module.

[0286] FIG. 25a shows the first housing part (10) and the second housing part (20) when the hinge module (50) is in the first position. Referring to FIG. 25a, when the hinge module (50) is in the first position, the first housing part (10) and the second housing part (20) can be spread apart from each other. For example, the first housing part (10) and the second housing part (20) can be substantially parallel and placed on a single plane (e.g., the XY plane).

[0287] FIG. 25b shows the first housing part (10) and the second housing part (20) when the hinge module (50) is in the second position. Referring to FIG. 25b, when the hinge module (50) transitions from the first position to the second position, the first housing part (10) can rotate clockwise by a first angle (a251) from the reference plane. When the hinge module (50) transitions from the first position to the second position, the second housing part (20) can rotate counterclockwise by a first angle (b251) from the reference plane.

[0288] When the hinge module (50) transitions from the first position to the second position, the first angle (a251) at which the first housing part (10) is rotated and the first angle (b251) at which the second housing part (20) is rotated may be different. For example, when the hinge module (50) transitions from the first position to the second position, the rotational speed of the first housing part (10) and the rotational speed of the second housing part (20) may be different. For example, the first angle (a251) may be approximately 25.39 degrees, and the second angle (b252) may be approximately 22.5 degrees.

[0289] FIG. 25c shows the first housing part (10) and the second housing part (20) when the hinge module (50) is in the third position. Referring to FIG. 25c, when the hinge module (50) transitions from the first position to the third position, the first housing part (10) can rotate clockwise by a second angle (a252) from the reference plane. When the hinge module (50) transitions from the first position to the third position, the second housing part (20) can rotate counterclockwise by a second angle (b252) from the reference plane.

[0290] When the hinge module (50) transitions from the first position to the third position, the second angle (a252) at which the first housing part (10) is rotated and the second angle (b252) at which the second housing part (20) is rotated may be different. For example, when the hinge module (50) transitions from the first position to the second position, the rotational speed of the first housing part (10) and the rotational speed of the second housing part (20) may be different. For example, the second angle (a252) may be approximately 48.31 degrees, and the second angle (b252) may be approximately 45 degrees.

[0291] FIG. 25d shows the first housing part (10) and the second housing part (20) when the hinge module (50) is in the fourth position. Referring to FIG. 25d, when the hinge module (50) transitions from the first position to the fourth position, the first housing part (10) can rotate clockwise by a third angle (a253) from the reference plane. When the hinge module (50) transitions from the first position to the fourth position, the second housing part (20) can rotate counterclockwise by a third angle (b253) from the reference plane.

[0292] When the hinge module (50) transitions from the first position to the fourth position, the third angle (a253) at which the first housing part (10) is rotated and the third angle (b253) at which the second housing part (20) is rotated may be different. For example, when the hinge module (50) transitions from the first position to the second position, the rotational speed of the first housing part (10) and the rotational speed of the second housing part (20) may be different. For example, the third angle (a253) may be approximately 69.73 degrees, and the third angle (b253) may be approximately 67.5 degrees.

[0293] FIG. 25e shows the first housing part (10) and the second housing part (20) when the hinge module (50) is in the fifth position. Referring to FIG. 25e, when the hinge module (50) transitions from the first position to the fifth position, the first housing part (10) can rotate clockwise by a fourth angle (a254) from the reference plane. When the hinge module (50) transitions from the first position to the fifth position, the second housing part (20) can rotate counterclockwise by a fourth angle (b254) from the reference plane.

[0294] When the hinge module (50) transitions from the first position to the fifth position, the fourth angle (a254) at which the first housing part (10) is rotated and the fourth angle (b254) at which the second housing part (20) is rotated may be substantially the same. For example, the fourth angle (a254) may be approximately 90 degrees, and the fourth angle (b254) may be approximately 90 degrees.

[0295] In one embodiment, while the hinge module (50) transitions from the first position to the fifth position, the rotational speed of the second housing part (20) may be maintained substantially the same, and the first housing part (10) may have different speeds depending on the section. For example, the second angle (b252) of the second housing part (20) may correspond to twice the first angle (b251), the third angle (b253) may correspond to three times the first angle (b251), and the fourth angle (b254) may correspond to four times the first angle (b251). In contrast, the first angle (a251) of the first housing part (10), the difference between the second angle (a252) and the first angle (a251), the difference between the third angle (a253) and the second angle (a252), and the difference between the fourth angle (a254) and the third angle (a253) may be different from each other. This may be because the left hinge of the hinge module (50) that rotates the first housing part (10) has a multi-joint link mechanism, and the right hinge of the hinge module (50) that rotates the second housing part (20) has a disconnected link mechanism.

[0296] FIGS. 26a, FIGS. 26b, FIGS. 26c, FIGS. 26d, and FIGS. 26e are drawings illustrating the operation of a hinge module. FIGS. 26a, FIGS. 26b, FIGS. 26c, FIGS. 26d, and FIGS. 26e can each correspond to line A-A' of FIG. 4a.

[0297] FIG. 26a shows the hinge module (50) of the first position, FIG. 26b shows the hinge module (50) of the second position, FIG. 26c shows the hinge module (50) of the third position, FIG. 26d shows the hinge module of the fourth position, and FIG. 26e shows the hinge module (50) of the fifth position.

[0298] Referring to FIGS. 26a and 26b, when the hinge module (50) transitions from the first position to the second position, the first rotating arm (511) can rotate by a first angle (a261). For example, the first rotating arm (511) can rotate clockwise by a first angle (a261) from the reference plane.

[0299] When the hinge module (50) transitions from the first position to the second position, the second rotating arm (512) can rotate by a first angle (b261). For example, the second rotating arm (512) can rotate by a first angle (b261) counterclockwise from the reference plane.

[0300] In one embodiment, the first angle (a261) at which the first rotating arm (511) rotates and the first angle (b261) at which the second rotating arm (512) rotates may be different. For example, when transitioning from the first position to the second position, the rotational speed of the first rotating arm (511) and the rotational speed of the second rotating arm (512) may be different. For example, when transitioning from the first position to the second position, the rotational speed of the first rotating arm (511) may be faster than the rotational speed of the second rotating arm (512). For example, the first angle (a261) may be approximately 33.1 degrees, and the first angle (b261) may be approximately 22.5 degrees.

[0301] Referring to FIG. 26c, when the hinge module (50) transitions from the first position to the third position, the first rotating arm (511) can rotate by a second angle (a262). For example, the first rotating arm (511) can rotate clockwise by a second angle (a262) from the reference plane.

[0302] When the hinge module (50) transitions from the first position to the third position, the second rotating arm (512) can rotate by a second angle (b262). For example, the second rotating arm (512) can rotate by a second angle (b262) counterclockwise from the reference plane.

[0303] In one embodiment, the second angle (a262) at which the first rotating arm (511) rotates and the second angle (b262) at which the second rotating arm (512) rotates may be different. For example, when transitioning from the first position to the third position, the rotational speed of the first rotating arm (511) and the rotational speed of the second rotating arm (512) may be different. For example, when transitioning from the first position to the third position, the rotational speed of the first rotating arm (511) may be faster than the rotational speed of the second rotating arm (512). For example, the second angle (a262) may be approximately 61.3 degrees, and the second angle (b262) may be approximately 45 degrees.

[0304] Referring to FIG. 26d, when the hinge module (50) transitions from the first position to the fourth position, the first rotating arm (511) can rotate by a third angle (a263). For example, the first rotating arm (511) can rotate clockwise by a third angle (a263) from the reference plane.

[0305] When the hinge module (50) transitions from the first position to the fourth position, the second rotating arm (512) can rotate by a third angle (b263). For example, the second rotating arm (512) can rotate by a third angle (b263) counterclockwise from the reference plane.

[0306] The third angle (a263) at which the first rotating arm (511) rotates and the third angle (b263) at which the second rotating arm (512) rotates may be different. For example, when transitioning from the first position to the fourth position, the rotational speed of the first rotating arm (511) and the rotational speed of the second rotating arm (512) may be different. For example, when transitioning from the first position to the fourth position, the rotational speed of the first rotating arm (511) may be faster than the rotational speed of the second rotating arm (512). For example, the third angle (a263) may be approximately 86.8 degrees, and the third angle (b263) may be approximately 67.5 degrees.

[0307] Referring to FIG. 26e, when the hinge module (50) transitions from the first position to the fifth position, the first rotating arm (511) can rotate by a fourth angle (a264). For example, the first rotating arm (511) can rotate clockwise by a fourth angle (a264) from the reference plane.

[0308] When the hinge module (50) transitions from the first position to the fifth position, the second rotating arm (512) can rotate by a fourth angle (b264). For example, the second rotating arm (512) can rotate by a fourth angle (b264) counterclockwise from the reference plane.

[0309] The fourth angle (a264) at which the first rotating arm (511) rotates and the fourth angle (b264) at which the second rotating arm (512) rotates may be different. For example, when transitioning from the first position to the fifth position, the rotational speed of the first rotating arm (511) and the rotational speed of the second rotating arm (512) may be different. For example, when transitioning from the first position to the fifth position, the rotational speed of the first rotating arm (511) may be faster than the rotational speed of the second rotating arm (512). For example, the fourth angle (a264) may be approximately 110 degrees, and the fourth angle (b264) may be approximately 90 degrees.

[0310] FIG. 27a is a perspective view showing a hinge module. FIG. 27b, FIG. 27c, and FIG. 27d are cross-sectional views of the hinge module showing a first rotating arm and a second rotating arm. For example, FIG. 27b may be a cross-sectional view along line 27B of FIG. 27a. For example, FIG. 27c may be a cross-sectional view along line 27C of FIG. 27a. For example, FIG. 27d may be a cross-sectional view along line 27D of FIG. 27a.

[0311] Referring to FIG. 27a and FIG. 27b, the first end (5121) of the second rotating arm (512) may be thinner than the first end (5111) of the first rotating arm (511). Referring to FIG. 27c, the first end (5111) of the first rotating arm (511) may form a first guide rail (511a). The first guide rail (511a) may include a groove in which a first protruding part (5812a) of the first base (581) is received.

[0312] Referring to FIGS. 27a and 27d, the first end (5121) of the second rotating arm (512) may form a first guide rail (512a). The first guide rail (512a) may include a projection that is received within the space between the second protruding part (5812b) of the first base (581) and the second side part (15-2) of the hinge housing (15). By moving the first guide rail (512a) within the space between the second protruding part (5812b) of the first base (581) and the second side part (15-2) of the hinge housing (15), the rotation of the second rotating arm (512) may be guided. Accordingly, the first end (5121) of the second rotating arm (512) can be rotatably positioned within the second side portion (15-2) of the relatively narrow hinge housing (15).

[0313] FIGS. 27e, FIGS. 27f, and FIGS. 27g are cross-sectional views of a hinge module showing a first spiral arm and a second spiral arm. For example, FIGS. 27e and FIGS. 27f may be cross-sectional views along line 27E of FIG. 27a. For example, FIG. 27g may be a cross-sectional view along line 27G of FIG. 27a.

[0314] Referring to FIG. 27e and FIG. 27f together with FIG. 27a, the first end (5211) of the first part (521) of the first spiral arm (520) may form a first guide rail (521a). The first guide rail (521a) may include a groove in which the third protrusion (5812c) of the first base (581) is received. In contrast, the first guide rail (531a) of the second spiral arm (530) may include a projection that is received within the space between the fourth protrusion (5812d) of the first base (581) and the second side part (15-2) of the hinge housing (15). The first guide rail (531a) of the second spiral arm (530) can be moved within the space between the fourth protruding part (5812d) of the first base (581) and the second side part (15-2) of the hinge housing (15), thereby guiding the rotation of the second spiral arm (530). Accordingly, the second spiral arm (530) can be rotatably positioned within the relatively narrow second side part (15-2) of the hinge housing (15).

[0315] The above description may be equally applied to the second part (522) of the first spiral arm (520) and the second part (532) of the second spiral arm (530) of FIG. 27g. For example, the first guide rail (522a) of the second part (522) of the first spiral arm (520) may be a groove that accommodates the first protruding part (582a) of the second base (582). In contrast, the first guide rail (532a) of the second part (532) of the second spiral arm (530) may be a projection that accommodates the second protruding part (582b) of the second base (582) and the second side part (15-2) of the hinge housing (15).

[0316] FIGS. 28a and FIGS. 28b show the shape of a display according to the state of an electronic device. FIGS. 28a and FIGS. 28b may correspond, for example, to line A-A' of FIG. 4a.

[0317] Referring to FIG. 28a, in the unfolded state of the first housing part (10) and the second housing part (20), the first part (61), the fourth part (64), and the second part (62) of the display (60) may be substantially flat. In the unfolded state of the first housing part (10) and the second housing part (20), the first part (61) of the display (60) may be supported by the first housing part (10) (e.g., by the first seating surface (10A)). In the unfolded state of the first housing part (10) and the second housing part (20), the second part (62) of the display (60) may be supported by the second housing part (20) (e.g., by the second seating surface (20A)). In the unfolded state of the first housing part (10) and the second housing part (20), the fourth part (64) of the display (60) can be supported by the first rotating arm (511) and the second rotating arm (512) of the hinge module (50) (e.g., by support surfaces (511A and 512A)).

[0318] Referring to FIG. 28b, in a folded state of the first housing part (10) and the second housing part (20), the first rotating arm (511) and the second rotating arm (512) can form a space for deformation of the fourth part (64) of the display (60). For example, in a folded state of the first housing part (10) and the second housing part (20), the fourth part (64) of the display (60) can be deformed into a shape corresponding to the space formed by the first rotating arm (511) and the second rotating arm (512). For example, in a folded state of the first housing part (10) and the second housing part (20), the fourth part (64) of the display (60) can have an asymmetrical shape. For example, when the first housing part (10) and the second housing part (20) are in a folded state, the fourth part (64) of the display (60) may have an asymmetrical shape with respect to a plane that is substantially parallel to the first housing part (10) and the second housing part (20) and located between the first housing part (10) and the second housing part (20) (e.g., including a folding axis (f1)). For example, when the first housing part (10) and the second housing part (20) are in a folded state, the fourth part (64) of the display (60) may have an asymmetrical teardrop shape that is more convex in the direction of the first rotating arm (511) (e.g., -X direction) than in the direction of the second rotating arm (512) (e.g., +X direction). For example, the fourth part (64) of the display (60) can be transformed from the flat shape into the asymmetric teardrop shape as the first housing part (10) and the second housing part (20) are folded.The asymmetric teardrop shape of the fourth part (64) may be due to the fact that, within the folded state of the first housing part (10) and the second housing part (20), the second rotating arm (512) is arranged at an angle (b28) (e.g., the fourth angle (b264)) and the first rotating arm (511) is arranged at an angle (a28) (e.g., the fourth angle (a264)) which is larger than the angle (b28). The asymmetric teardrop shape distributes mechanical stress throughout the display, thereby reducing wear and damage to the display.

[0319] Referring to FIG. 28b, the electronic device (1) (or hinge module (50)) may further include a plate (513) (or auxiliary plate) for improving the flatness of the display (60). The auxiliary plate (513) may be positioned, for example, between the display (60) and the first rotating arm (511). The plate (513) may be placed, for example, on the first rotating arm (511) (or the support surface (511A) of the first rotating arm (511). The plate (513) may be fixedly coupled to the first rotating arm (511) or movably coupled (e.g., rotatably). Accordingly, the plate (513) may rotate together with the first rotating arm (511). The plate (513) can improve the flatness of the display (60) by supporting the fourth part (64) of the display (60) when, for example, the electronic device (1) is unfolded.

[0320] Figure 29 shows a hinge module.

[0321] The hinge module (50') of FIG. 29 may be an example of the third hinge module (41-3) of FIG. 4a and FIG. 4b. Referring to FIG. 29, the hinge module (50') may include a base assembly (58'), a first rotating arm (511'), a link (541'), and a second rotating arm (512').

[0322] For the base assembly (58'), the first rotating arm (511'), the link (541'), and the second rotating arm (512'), the description of the first base (581), the first rotating arm (511), the first link (541), and the second rotating arm (512) of the hinge module (50) may be applied substantially the same, similarly, or in a corresponding manner.

[0323] FIGS. 30a and FIGS. 30b show a hinge housing of an electronic device.

[0324] Referring to FIG. 30a, in one embodiment, a first side portion (15-1) of a hinge housing (15) may include a portion (302) defining a groove (304). The portion (302) of the first side portion (15-1) may be adjacent to a second side portion (15-2). The groove (304) may be recessed, for example, in the -X direction.

[0325] Foreign matter, such as dust accumulated on the second side portion (15-2) of the hinge housing (15), may be pushed into the second housing part (20) by the first side portion (15-1) of the hinge housing (15) when the second housing part (20) is folded. The groove (304) provides a space through which foreign matter, such as dust, can escape without being pushed by the second housing part (20) and the hinge housing (15) even when the second housing part (20) is folded, thereby reducing or preventing foreign matter, such as dust, from entering the second housing part (20).

[0326] The shape of the groove (304) is not limited to the illustrated example and various variations are possible. For example, referring to FIG. 30b, the groove (304') defined by the part (302') of the hinge housing (15) may have a smoother shape than the groove (304) of FIG. 30a.

[0327] FIGS. 31a and FIGS. 31b show the support structure and foreign object prevention structure of the housing of an electronic device.

[0328] Referring to FIG. 31a, the electronic device (1) may include a first support structure (312), a first foreign object prevention structure (314), a second support structure (322), and a second foreign object prevention structure (324).

[0329] The first support structure (312) and the first foreign object prevention structure (314) may be positioned between the side portion (10S) of the first housing part (10) and the first side portion (15-1) of the hinge housing (15). The first foreign object prevention structure (314) may be positioned closer to the outer edge of the first housing part (10) than the first support structure (312).

[0330] The second support structure (322) and the second foreign matter prevention structure (324) may be positioned between the side portion (20S) of the second housing part (20) and the second side portion (15-2) of the hinge housing (15). The second foreign matter prevention structure (324) may be positioned closer to the outer edge of the second housing part (20) than the second support structure (322).

[0331] In one embodiment, the first support structure (312) may be different from the second support structure (322). For example, the width and / or height of the first support structure (312) may be greater than the width and / or height of the second support structure (322).

[0332] In one embodiment, the first foreign matter prevention structure (314) may differ from the second foreign matter prevention structure (324). For example, the width and / or height of the first foreign matter prevention structure (314) may be greater than the width and / or height of the second foreign matter prevention structure (324). Alternatively, since foreign matter such as dust may enter the second housing part (20) more easily than the first housing part (10), the width and / or height of the second foreign matter prevention structure (324) may be greater than the width and / or height of the first foreign matter prevention structure (314).

[0333] In one embodiment, the material of the first foreign matter prevention structure (314) may be different from the material of the second foreign matter prevention structure (324). For example, the first foreign matter prevention structure (314) and / or the second foreign matter prevention structure (324) may have the shape of a brush such as a toothbrush or include a fibrous material such as a nonwoven fabric.

[0334] Referring to FIG. 31b, the first support structure (312) may include support structures (312-1, 312-2, and 312-3) disposed on the first housing part (10). The support structures (312-1, 312-2, and 312-3) may be spaced apart from each other.

[0335] The first foreign matter prevention structure (314) may include foreign matter prevention structures (314-1 and 314-2) disposed on the first housing part (10) and spaced apart from each other. The foreign matter prevention structure (314-1) may be disposed between the support structure (312-1) and the support structure (312-2). The foreign matter prevention structure (314-2) may be disposed between the support structure (312-2) and the support structure (312-3).

[0336] The second support structure (322) may include support structures (322-1 and 322-2) that are placed on the second housing part (20) and spaced apart from each other.

[0337] The second foreign matter prevention structure (324) may include a foreign matter prevention structure (324-1) positioned on the second housing part (20) and located between the support structures (322-1 and 322-2).

[0338] The support structure (322-1) on the second housing part (20) can be aligned with the support structure (312-1) on the first housing part (10). The support structure (322-2) on the second housing part (20) can be aligned with the support structure (312-3) on the first housing part (10).

[0339] The foreign matter prevention structure (324-1) on the second housing part (20) can be aligned with the foreign matter prevention structures (314-1 and 314-2) and the support structure (312-2) on the first housing part (10).

[0340] The technical problems to be solved in this disclosure are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which this disclosure pertains.

[0341] An electronic device (1) may include: a first housing part (10); a second housing part (20) thinner than the first housing part (10); an asymmetric hinge structure (50) rotatably connecting the second housing part (20) to the first housing part (10); and a display (60) disposed on the first housing part (10), the asymmetric hinge structure (50), and the second housing part (20). The asymmetric hinge structure (50) may include a base (581; 582) comprising a first side portion (581-1; 582-1) facing the first housing part (10) and a second side portion (581-2; 582-2) opposite to the first side portion (581-1; 582-1) and facing the second housing part (20); and a link (541) fixedly coupled to the first housing part (10). It may include a first rotating arm (511) comprising a first end (5111) rotatably coupled to the first side portion (581-1; 582-1) of the base (581; 582) and a second end (5112) rotatably coupled to the link (541); and a second rotating arm (512) comprising a first end (5121) rotatably coupled to the second side portion (581-2; 582-2) of the base (581; 582) and a second end (5122) fixedly coupled to the second housing part (20). The display (60) may include a portion (64) supported by the first rotating arm (511) and the second rotating arm (512) when the first housing part (10) and the second housing part (20) are in an unfolded state. When the first housing part (10) and the second housing part (20) are in a folded state, the second rotating arm (512) may be substantially parallel to the second housing part (20).In a folded state of the first housing part (10) and the second housing part (20), the first rotating arm (511) may be tilted such that the second end (5112) of the first rotating arm (511) is closer to the second rotating arm (512) than to the first end (5111) of the first rotating arm (511). The portion of the display (60) may have an asymmetric teardrop shape that is more convex in the direction of the first rotating arm (511) than in the direction of the second rotating arm (512) in a folded state of the first housing part (10) and the second housing part (20).

[0342] In one embodiment, the asymmetric teardrop shape may be the shape when the display (60) is viewed in a direction parallel to the folding axis (f1) of the first housing part (10) and the second housing part (20).

[0343] In one embodiment, a hinge housing (15) may be included that covers a portion of the asymmetric hinge structure (50) and in which the base (581; 582) is fixedly positioned. The hinge housing (15) may include: a first portion (15-1) that accommodates the first side portion (581-1; 582-1) of the base (581; 582); and a second portion (15-2) that accommodates the second side portion (581-2; 582-2) of the base (581; 582). The thickness of the second portion (15-2) of the hinge housing (15) may be thinner than the thickness of the first portion (15-1) of the hinge housing (15).

[0344] In one embodiment, the thickness of the first part (15-1) of the hinge housing (15) and the thickness of the second part (15-2) of the hinge housing (15) may be lengths along a first direction substantially perpendicular to the display (60) while the first housing part (10) and the second housing part (20) are unfolded.

[0345] In one embodiment, the first part (15-1) of the hinge housing (15) may be covered by a part of the first housing part (10) or exposed to the outside of the electronic device (1) depending on the rotation of the first housing part (10). The second part (15-2) of the hinge housing (15) may be covered by a part of the second housing part (20) or exposed to the outside of the electronic device (1) depending on the rotation of the second housing part (20). In the unfolded state of the first housing part (10) and the second housing part (20), the part of the second housing part (20) covering the second part (15-2) of the hinge housing (15) may face the first part (15-1) of the hinge housing (15).

[0346] In one embodiment, the width of the second part (15-2) of the hinge housing (15), along the folding axis (f1) of the first housing part (10) and the second housing part (20) and the second direction perpendicular to the first direction, may be smaller than the width of the first part (15-1) of the hinge housing (15).

[0347] In one embodiment, the center (P19) of the entire width of the hinge housing (15) along the second direction may be located within the first part (15-1) of the hinge housing (15).

[0348] In one embodiment, the first housing part (10) may include a seating surface (10A) that partially supports the display (60). In a folded state of the first housing part (10) and the second housing part (20), a virtual plane may be defined that includes the center (P19) of the hinge housing (15) and is parallel to the seating surface (10A) of the first housing part (10). In a folded state of the first housing part (10) and the second housing part (20), the seating surface (10A) of the first housing part (10) may be positioned so as to be offset from the virtual plane toward the second housing part (20).

[0349] In one embodiment, the first side portion (581-1; 582-1) of the base (581; 582) may include a projection (5811a; 5812a) that is movably coupled to a first guide rail (511a) formed on the first rotating arm (511) to guide the rotation of the first rotating arm (511) relative to the first side portion (581-1; 582-1) of the base (581; 582). The second side portion (581-2; 582-2) of the base (581; 582) and the second portion of the hinge housing (15) may together define a second guide rail to which a projection (5812a) formed on the second rotating arm (512) is movably coupled in order to guide the rotation of the second rotating arm (512) with respect to the second side portion (581-2; 582-2) of the base (581; 582).

[0350] In one embodiment, the asymmetric hinge structure (50) may include: another link (542) fixedly coupled to the first housing part (10); a first spiral arm (520) comprising a first end (5211; 5221) rotatably coupled to the first side part (581-1; 582-1) of the base (581; 582) and a second end (5212; 5222) rotatably coupled to the other link (542); and a second spiral arm (530) opposite to the first spiral arm (520), comprising a first end (5311; 5321) rotatably coupled to the second side part (581-2; 582-2) of the base (581; 582) and a second end (5312; 5322) fixedly coupled to the second housing part (20). The display (60) may include other parts supported by the first support surface (521B; 522B) of the first spiral arm (520) and the second support surface (531A; 532A) of the second spiral arm (530) while the first housing part (10) and the second housing part (20) are in an unfolded state. The first support surface (521B; 522B) of the first spiral arm (520) may be tilted with respect to the first rotating arm (511) and the second support surface (531A; 532A) of the second spiral arm (530) while the first housing part (10) and the second housing part (20) are in a folded state. The second support surface (531A; 532A) of the second spiral arm (530) may be substantially parallel to the second housing part (20).

[0351] In one embodiment, the other part of the display (60) may have an asymmetric teardrop shape that is more convex in the direction of the first spiral arm (520) than in the direction of the second spiral arm (530) while the first housing part (10) and the second housing part (20) are folded.

[0352] In one embodiment, the area of ​​the second support surface (531A; 532A) may be larger than the area of ​​the first support surface (521B; 522B).

[0353] In one embodiment, when the first housing part (10) and the second housing part (20) are in an unfolded state, the straight line connecting the rotation axis of the first end (5211; 5221) of the first spiral arm (520) and the rotation axis of the first end (5311; 5321) of the second spiral arm (530) may not be parallel to the display (60).

[0354] In one embodiment, the asymmetric hinge structure (50) may include: a bar (583) extending parallel to the folding axis (f1) of the first housing part (10) and the second housing part (20); and a spiral link (550) coupled to the bar (583) so as to be slidable. The spiral link (550) may include: a first side portion (551) in which a first spiral rail (550a) is formed and which faces the direction of the first housing part (10); and a second side portion (552) in which a second spiral rail (550b) is formed and which faces the direction of the second housing part (20) and which is opposite to the first side portion (551) of the spiral link (550). The first portion of the first end (5211; 5221) of the first spiral arm (520) may be rotatably coupled to the first side portion (581-1; 582-1) of the base (581; 582). The second portion of the first end (5211; 5221) of the first spiral arm (520) may be rotatably coupled to the first side portion (551) of the spiral link (550) so as to be rotatable along the first spiral rail (550a). The first portion of the first end (5311; 5321) of the second spiral arm (530) may be rotatably coupled to the second side portion (581-2; 582-2) of the base (581; 582). The second portion of the first end portion (5311; 5321) of the second spiral arm (530) can be coupled to the second side portion (552) of the spiral link (550) so as to be rotatable along the second spiral rail (550b).The spiral link (550) may be configured to slide along the bar (583) while the first spiral arm (520) rotates with respect to the first side portion (551) of the spiral link (550) and the second spiral arm (530) rotates with respect to the second side portion (552) of the spiral link (550).

[0355] In one embodiment, the first side portion (551) of the spiral link (550) may include a first surface (551A) that is substantially flat and faces the display (60) while the first housing part (10) and the second housing part (20) are in an unfolded state. The second side portion (552) of the spiral link (550) may include a second surface (552A) that is substantially flat and faces the display (60) while the first housing part (10) and the second housing part (20) are in an unfolded state. In the unfolded state of the first housing part (10) and the second housing part (20), the first surface (551A) of the first side part (551) of the spiral link (550) may be located further from the display (60) than the second surface (552A) of the second side part (552) of the spiral link (550).

[0356] In one embodiment, the first spiral arm (520) may include: a surface (521A; 522A) extending without substantial step from the first surface (551A) of the first side portion (551) of the spiral link (550) in a unfolded state of the first housing part (10) and the second housing part (20); and an inclined surface (521C; 522C) extending from the surface (521A; 522A) of the first spiral arm (520) to the first support surface (521B; 522B) of the first spiral arm (520). The second support surface (531A; 532A) of the second spiral arm (530) can be extended without substantial step from the second surface (552A) of the second side portion (552) of the spiral link (550) within the unfolded state of the first housing part (10) and the second housing part (20).

[0357] In one embodiment, the first housing part (10) may include a first mounting surface (10A) that supports a first part (61) of the display (60). The second housing part (20) may include a second mounting surface (10B) that supports a second part (62) of the display (60). The part of the display (60) may be a third part (64) that connects a part of the first part (61) of the display (60) and a part of the second part (62) of the display (60). The first rotating arm (511) may include a first support surface (521B; 522B) that supports a first area of ​​the third part of the display (60) within the unfolded state of the first housing part (10) and the second housing part (20) and is substantially parallel to the first seating surface (10A) of the first housing part (10). The second rotating arm (512) may include a second support surface (531A; 532A) that supports a second area of ​​the third part of the display (60) within the unfolded state of the first housing part (10) and the second housing part (20) and is substantially parallel to the second seating surface (10B) of the second housing part (20). In the folded state of the first housing part (10) and the second housing part (20), the first support surface (521B; 522B) of the first rotating arm (511) may be inclined with respect to the first seating surface (10A) of the first housing part (10). In the folded state of the first housing part (10) and the second housing part (20), the second support surface (531A; 532A) of the second rotating arm (512) may be substantially parallel with respect to the second seating surface (10B) of the second housing part (20).

[0358] In one embodiment, the rotation of the first housing part (10) can be linked to the rotation of the second housing part (20) through the asymmetric hinge structure (50). When the second housing part (20) rotates at a first speed in the first section and the second section, the first housing part (10) can rotate at a second speed different from the first speed in the first section, and rotate at a third speed different from the first speed and the second speed in the second section.

[0359] A foldable electronic device (1) may include: a first housing part (10); a second housing part (20) having a thinner thickness than the first housing part (10); a hinge assembly (50) that rotatably connects the first housing part (10) and the second housing part (20); a hinge housing (15) configured to cover at least a portion of the hinge assembly (50); and a flexible display (60) disposed on the first housing part (10) and the second housing part (20). The hinge assembly (50) comprises: a first base (581) fixed to at least a portion of the hinge housing (15); and a first rotating arm (511), one end of which is rotatably connected to a first portion of the first base (581) and the other end of which is rotatably connected to at least a portion of the first housing part (10). A second rotating arm (512), one end of which is rotatably connected to a second part of the first base (581) and the other end of which is fixedly connected to at least a part of the second housing part (20); a second base (582) fixed to at least another part of the hinge housing (15); a first spiral arm (520), one end of which is rotatably connected to a third part of the second base (582) and the other end of which is rotatably connected to at least another part of the first housing part (10); and a second spiral arm (530), one end of which is rotatably connected to a fourth part of the second base (582) and the other end of which is fixedly connected to at least another part of the second housing part (20). and may include a spiral slider (550) that is at least partially coupled to the first spiral arm (520) and the second spiral arm (530) and configured to move along a guide rail (583) included in the second base (582) while the foldable electronic device (1) is unfolded.

[0360] In one embodiment, the length of the portion of the first rotating arm (511) rotatably connected to the portion of the first rotating arm (511) along the axis of rotation of the portion of the first rotating arm (511) may be shorter than the length of the portion of the second rotating arm (512) along the axis of rotation of the portion of the second rotating arm (512) rotatably connected to the second portion of the first base (581).

[0361] In one embodiment, the vertical length of the second rotating arm (512) along the direction of the rotation axis of the second rotating arm (512) may be smaller than the horizontal length of the second rotating arm (512) along the direction perpendicular to the rotation axis of the second rotating arm (512).

[0362] In one embodiment, the radius of the portion where the first rotating arm (511) is rotatably connected to the first portion of the first base (581) may be larger than the radius of the portion where the second rotating arm (512) is rotatably connected to the second portion of the first base (581).

[0363] In one embodiment, the radius of the portion where the first spiral arm (520) is rotatably connected to the third portion of the second base (582) may be larger than the radius of the portion where the second spiral arm (530) is rotatably connected to the fourth portion of the second base (582).

[0364] In one embodiment, the foldable electronic device (1) may further include: a third spiral arm, at least one end of which is rotatably connected to a fifth part of the base (581; 582) and the other end of which is rotatably connected to another at least part of the first housing part (10); and a fourth spiral arm, at least one end of which is rotatably connected to a sixth part of the base (581; 582) and the other end of which is fixedly connected to another at least part of the second housing part (20). The spiral slider may be at least partially coupled to the third spiral arm and the fourth spiral arm.

[0365] In one embodiment, the radius of the portion where the third spiral arm is rotatably connected to the fifth portion of the first base (581) may be larger than the radius of the portion where the fourth spiral arm is rotatably connected to the sixth portion of the first base (581).

[0366] In one embodiment, the radius of the portion of the spiral slider that is rotatably coupled to the first spiral arm (520) may be larger than the radius of the portion of the spiral slider that is rotatably coupled to the second spiral arm (530).

[0367] In one embodiment, the center of the area where the first base (581) and the second base (582) are fixed to the hinge housing (15) may be positioned offset from the centerline of the hinge housing (15) in the direction of the first housing part (10).

[0368] In one embodiment, when the foldable electronic device is fully unfolded, the virtual plane drawn from the axis of rotation where the first rotating arm (511) rotates with the first base (581) and the axis of rotation where the second rotating arm (512) rotates with the first base (581) may not be parallel to the plane of the flexible display (60).

[0369] An electronic device (1) may include a first housing part (10); a second housing part (20) having a thinner thickness than the first housing part (10); a hinge structure (50) rotatably connecting the first housing part (10) and the second housing part (20); and a display (60) disposed on the first housing part (10) and the second housing part (20). The hinge structure (50) may include a bracket (581; 582) located at the center of the hinge structure (50); a first hinge part connected to one side of the bracket (581; 582) and the first housing part (10); and a second hinge part connected to the other side of the bracket (581; 582) and the second housing part (20). The first hinge part and the second hinge part have an asymmetric structure relative to each other, and the radius of rotation of the first hinge part may be larger than the radius of rotation of the second hinge part. The display (60) may be configured to have an asymmetric shape on the left and right sides with respect to the bracket (581; 582) of the hinge structure when the first housing part (10) and the second housing part (20) are folded.

[0370] In one embodiment, the first hinge part of the hinge structure (50) may include a link (541) fixedly coupled to the first housing part (10); and a first rotating arm (511) comprising a first end (5111) rotatably coupled to one side of the bracket (581; 582) and a second end (5112) rotatably coupled to the link (541). The second hinge part of the hinge structure (50) may include a second rotating arm (512) comprising a first end (5121) rotatably coupled to the other side of the bracket (581; 582) and a second end (5122) fixedly coupled to the second housing part (20). The display (60) may include a portion (64) supported by the first rotating arm (511) and the second rotating arm (512) in the unfolded state of the first housing part (10) and the second housing part (20). In the folded state of the first housing part (10) and the second housing part (20), the first rotating arm (511) may be tilted such that the second end (5112) of the first rotating arm (511) is closer to the second rotating arm (512) than the first end (5111) of the first rotating arm (511). The above portion of the display (60) may have an asymmetric teardrop shape that is more convex in the direction of the first rotating arm (511) than in the direction of the second rotating arm (512) when the first housing part (10) and the second housing part (20) are folded.

[0371] In one embodiment, the asymmetric teardrop shape may be the shape when the display (60) is viewed in a direction parallel to the folding axis (f1) of the first housing part (10) and the second housing part (20).

[0372] In one embodiment, the electronic device (1) may include a hinge housing (15) that covers a part of the hinge structure (50) and in which the bracket (581; 582) is fixedly positioned. The hinge housing (15) may include a first part (15-1) that accommodates one side of the bracket (581; 582); and a second part (15-2) that accommodates the other side of the bracket (581; 582). The thickness of the second part (15-2) of the hinge housing (15) may be thinner than the thickness of the first part (15-1) of the hinge housing (15). The thickness of the first part (15-1) of the hinge housing (15) and the thickness of the second part (15-2) of the hinge housing (15) can be lengthened along a first direction substantially perpendicular to the display (60) while the first housing part (10) and the second housing part (20) are unfolded.

[0373] In one embodiment, the first part (15-1) of the hinge housing (15) may be covered by a part of the first housing part (10) or exposed to the outside of the electronic device (1) depending on the rotation of the first housing part (10). The second part (15-2) of the hinge housing (15) may be covered by a part of the second housing part (20) or exposed to the outside of the electronic device (1) depending on the rotation of the second housing part (20). In the unfolded state of the first housing part (10) and the second housing part (20), the part of the second housing part (20) covering the second part (15-2) of the hinge housing (15) may face the first part (15-1) of the hinge housing (15).

[0374] In one embodiment, the width of the second part (15-2) of the hinge housing (15), along the folding axis (f1) of the first housing part (10) and the second housing part (20) and the second direction perpendicular to the first direction, may be smaller than the width of the first part (15-1) of the hinge housing (15).

[0375] In one embodiment, the center (P19) of the entire width of the hinge housing (15) along the second direction may be located within the first part (15-1) of the hinge housing (15).

[0376] In one embodiment, the first housing part (10) may include a seating surface (10A) that partially supports the display (60). In a folded state of the first housing part (10) and the second housing part (20), a virtual plane may be defined that includes the center (P19) of the hinge housing (15) and is parallel to the seating surface (10A) of the first housing part (10). In a folded state of the first housing part (10) and the second housing part (20), the seating surface (10A) of the first housing part (10) may be positioned so as to be offset from the virtual plane toward the second housing part (20).

[0377] In one embodiment, the one side of the bracket (581; 582) may include a projection (5811a; 5812a) that is movably coupled to a first guide rail (511a) formed on the first rotating arm (511) to guide the rotation of the first rotating arm (511) relative to the bracket (581; 582). The other side of the bracket (581; 582) and the second part of the hinge housing (15) may together define a second guide rail to which a projection (512a) formed on the second rotating arm (512) is movably coupled to guide the rotation of the second rotating arm (512) relative to the bracket (581; 582).

[0378] In one embodiment, the first hinge part of the hinge structure (50) may include another link (542) fixedly coupled to the first housing part (10); and a first spiral arm (520) comprising a first end (5211; 5221) rotatably coupled to one side of the bracket (581; 582) and a second end (5212; 5222) rotatably coupled to the other link (542). The second hinge part of the hinge structure (50) may include a second spiral arm (530) opposite to the first spiral arm (520), comprising a first end (5311; 5321) rotatably coupled to the other side of the bracket (581; 582) and a second end (5312; 5322) fixedly coupled to the second housing part (20). The display (60) may include other parts supported by the first support surface (521B; 522B) of the first spiral arm (520) and the second support surface (531A; 532A) of the second spiral arm (530) while the first housing part (10) and the second housing part (20) are in an unfolded state. The first support surface (521B; 522B) of the first spiral arm (520) may be tilted with respect to the first rotating arm (511) and the second support surface (531A; 532A) of the second spiral arm (530) while the first housing part (10) and the second housing part (20) are in a folded state. The second support surface (531A; 532A) of the second spiral arm (530) may be substantially parallel to the second housing part (20).

[0379] In one embodiment, the other part of the display (60) may have an asymmetric teardrop shape that is more convex in the direction of the first spiral arm (520) than in the direction of the second spiral arm (530) while the first housing part (10) and the second housing part (20) are folded.

[0380] In one embodiment, the area of ​​the second support surface (531A; 532A) may be larger than the area of ​​the first support surface (521B; 522B).

[0381] In one embodiment, when the first housing part (10) and the second housing part (20) are in an unfolded state, the straight line connecting the rotation axis of the first end (5211; 5221) of the first spiral arm (520) and the rotation axis of the first end (5311; 5321) of the second spiral arm (530) may not be parallel to the display (60).

[0382] In one embodiment, the hinge structure (50) may include a bar (583) extending parallel to the folding axis (f1) of the first housing part (10) and the second housing part (20); and a spiral link (550) coupled to the bar (583) so as to be slidable. The spiral link (550) may include a first side portion (551) in which a first spiral rail (550a) is formed and which faces the direction of the first housing part (10); and a second side portion (552) in which a second spiral rail (550b) is formed and which faces the direction of the second housing part (20) and which is opposite to the first side portion (551) of the spiral link (550). The first portion of the first end (5211; 5221) of the first spiral arm (520) may be rotatably coupled to one side of the bracket (581; 582). The second portion of the first end (5211; 5221) of the first spiral arm (520) may be rotatably coupled to the first side portion (551) of the spiral link (550) so as to be rotatable along the first spiral rail (550a). The first portion of the first end (5311; 5321) of the second spiral arm (530) may be rotatably coupled to the other side of the bracket (581; 582). The second portion of the first end (5311; 5321) of the second spiral arm (530) may be coupled to the second side portion (552) of the spiral link (550) so as to be rotatable along the second spiral rail (550b). The spiral link (550) may be configured to slide along the bar (583) while the first spiral arm (520) rotates relative to the first side portion (551) of the spiral link (550) and the second spiral arm (530) rotates relative to the second side portion (552) of the spiral link (550).

[0383] In one embodiment, the first side portion (551) of the spiral link (550) may include a first surface (551A) that is substantially flat and faces the display (60) while the first housing part (10) and the second housing part (20) are in an unfolded state. The second side portion (552) of the spiral link (550) may include a second surface (552A) that is substantially flat and faces the display (60) while the first housing part (10) and the second housing part (20) are in an unfolded state. In the unfolded state of the first housing part (10) and the second housing part (20), the first surface (551A) of the first side part (551) of the spiral link (550) may be located further from the display (60) than the second surface (552A) of the second side part (552) of the spiral link (550).

[0384] In one embodiment, the first spiral arm (520) may include a surface (521A; 522A) extending without substantial step from the first surface (551A) of the first side portion (551) of the spiral link (550) within the unfolded state of the first housing part (10) and the second housing part (20); and an inclined surface (521C; 522C) extending from the surface (521A; 522A) of the first spiral arm (520) to the first support surface (521B; 522B) of the first spiral arm (520). The second support surface (531A; 532A) of the second spiral arm (530) can be extended without substantial step from the second surface (552A) of the second side portion (552) of the spiral link (550) within the unfolded state of the first housing part (10) and the second housing part (20).

[0385] In one embodiment, the first housing part (10) may include a first mounting surface (10A) that supports a first part (61) of the display (60). The second housing part (20) may include a second mounting surface (10B) that supports a second part (62) of the display (60). The part of the display (60) may be a third part (64) that connects a part of the first part (61) of the display (60) and a part of the second part (62) of the display (60). The first rotating arm (511) may include a first support surface (521B; 522B) that supports a first area of ​​the third part of the display (60) within the unfolded state of the first housing part (10) and the second housing part (20) and is substantially parallel to the first seating surface (10A) of the first housing part (10). The second rotating arm (512) may include a second support surface (531A; 532A) that supports a second area of ​​the third part of the display (60) within the unfolded state of the first housing part (10) and the second housing part (20) and is substantially parallel to the second seating surface (10B) of the second housing part (20). In the folded state of the first housing part (10) and the second housing part (20), the first support surface (521B; 522B) of the first rotating arm (511) may be inclined with respect to the first seating surface (10A) of the first housing part (10). In the folded state of the first housing part (10) and the second housing part (20), the second support surface (531A; 532A) of the second rotating arm (512) may be substantially parallel with respect to the second seating surface (10B) of the second housing part (20).

[0386] In one embodiment, the rotation of the first housing part (10) can be linked to the rotation of the second housing part (20) through the hinge structure (50). When the second housing part (20) rotates at a first speed in the first section and the second section, the first housing part (10) can rotate at a second speed different from the first speed in the first section, and rotate at a third speed different from the first speed and the second speed in the second section.

[0387] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs.

[0388] FIG. 32 is a block diagram of an electronic device (3201) in a network environment (3200) according to various embodiments. Referring to FIG. 32, in the network environment (3200), the electronic device (3201) may communicate with an electronic device (3202) through a first network (3298) (e.g., a short-range wireless communication network) or may communicate with at least one of an electronic device (3204) or a server (3208) through a second network (3299) (e.g., a long-range wireless communication network). The electronic device (3201) may communicate with the electronic device (3204) through the server (3208). The electronic device (3201) may include a processor (3220), memory (3230), input module (3250), sound output module (3255), display module (3260), audio module (3270), sensor module (3276), interface (3277), connection terminal (3278), haptic module (3279), camera module (3280), power management module (3288), battery (3289), communication module (3290), subscriber identification module (3296), or antenna module (3297). In some embodiments, at least one of these components (e.g., connection terminal (3278)) may be omitted from the electronic device (3201), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (3276), camera module (3280), or antenna module (3297)) may be integrated into a single component (e.g., display module (3260)).

[0389] The processor (3220) can, for example, execute software (e.g., program (3240)) to control at least one other component (e.g., hardware or software component) of the electronic device (3201) connected to the processor (3220) and perform various data processing or operations. As at least part of the data processing or operations, the processor (3220) can store commands or data received from other components (e.g., sensor module (3276) or communication module (3290)) in volatile memory (3232), process the commands or data stored in volatile memory (3232), and store the resulting data in non-volatile memory (3234). The processor (3220) may include a main processor (3221) (e.g., central processing unit or application processor) or an auxiliary processor (3223) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (3201) includes a main processor (3221) and an auxiliary processor (3223), the auxiliary processor (3223) may be configured to use lower power than the main processor (3221) or to be specialized for a designated function. The auxiliary processor (3223) may be implemented separately from the main processor (3221) or as part thereof.

[0390] The auxiliary processor (3223) may control at least some of the functions or states associated with at least one component of the electronic device (3201) (e.g., display module (3260), sensor module (3276), or communication module (3290)) on behalf of the main processor (3221) while the main processor (3221) is in an inactive (e.g., sleep) state, or together with the main processor (3221) while the main processor (3221) is in an active (e.g., application execution) state. The auxiliary processor (3223) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (3280) or communication module (3290)). The auxiliary processor (3223) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (3201) itself where the artificial intelligence model is executed, or through a separate server (e.g., server (3208)). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model may include a plurality of artificial neural network layers.An artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0391] The memory (3230) can store various data used by at least one component of the electronic device (3201) (e.g., processor (3220) or sensor module (3276)). The data may include, for example, software (e.g., program (3240)) and input or output data for related commands. The memory (3230) may include volatile memory (3232) or non-volatile memory (3234).

[0392] The program (3240) may be stored as software in memory (3230) and may include, for example, an operating system (3242), middleware (3244), or an application (3246).

[0393] The input module (3250) can receive commands or data to be used for a component of the electronic device (3201) (e.g., processor (3220)) from outside the electronic device (3201) (e.g., user). The input module (3250) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0394] The sound output module (3255) can output a sound signal to the outside of the electronic device (3201). The sound output module (3255) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. The receiver may be implemented separately from the speaker or as part thereof.

[0395] The display module (3260) can visually provide information to an external (e.g., user) of the electronic device (3201). The display module (3260) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling said device. The display module (3260) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of the force generated by said touch.

[0396] The audio module (3270) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. The audio module (3270) can acquire sound through the input module (3250) or output sound through the sound output module (3255) or an external electronic device (e.g., electronic device (3202)) (e.g., speaker or headphones) that is directly or wirelessly connected to the electronic device (3201).

[0397] The sensor module (3276) can detect the operating state of the electronic device (3201) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. The sensor module (3276) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0398] The interface (3277) may support one or more specified protocols that can be used for the electronic device (3201) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (3202)). The interface (3277) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0399] The connection terminal (3278) may include a connector through which the electronic device (3201) can be physically connected to an external electronic device (e.g., electronic device (3202)). The connection terminal (3278) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0400] The haptic module (3279) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic senses. The haptic module (3279) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0401] The camera module (3280) can capture still images and video. The camera module (3280) may include one or more lenses, image sensors, image signal processors, or flashes.

[0402] The power management module (3288) can manage power supplied to the electronic device (3201). The power management module (3288) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).

[0403] The battery (3289) can supply power to at least one component of the electronic device (3201). The battery (3289) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0404] The communication module (3290) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an electronic device (3201) and an external electronic device (e.g., electronic device (3202), electronic device (3204), or server (3208)), and the performance of communication through the established communication channel. The communication module (3290) may include one or more communication processors that operate independently of the processor (3220) (e.g., application processor) and support direct (e.g., wired) communication or wireless communication. The communication module (3290) may include a wireless communication module (3292) (e.g., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (3294) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device (3204) via a first network (3298) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (3299) (e.g., a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (3292) can identify or authenticate the electronic device (3201) within a communication network such as the first network (3298) or the second network (3299) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (3296).

[0405] The wireless communication module (3292) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (3292) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (3292) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), full-dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large-scale antenna. The wireless communication module (3292) can support various requirements specified in the electronic device (3201), external electronic device (e.g., electronic device (3204)), or network system (e.g., second network (3299)). The wireless communication module (3292) can support a Peak data rate (e.g., 20 Gbps or more) for eMBB realization, loss coverage (e.g., 164 dB or less) for mMTC realization, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for URLLC realization.

[0406] The antenna module (3297) can transmit a signal or power to or from an external source (e.g., an external electronic device). The antenna module (3297) may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). The antenna module (3297) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as a first network (3298) or a second network (3299), may be selected from the plurality of antennas, for example, by a communication module (3290). The signal or power may be transmitted or received between the communication module (3290) and an external electronic device through the selected at least one antenna. In addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (3297).

[0407] According to various embodiments, the antenna module (3297) may form a mmWave antenna module. The mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0408] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0409] Commands or data may be transmitted or received between the electronic device (3201) and an external electronic device (3204) through a server (3208) connected to the second network (3299). Each of the external electronic devices (3202, or 3204) may be the same or a different type of device as the electronic device (3201). All or part of the operations performed on the electronic device (3201) may be performed on one or more of the external electronic devices (3202, 3204, or 3208). For example, if the electronic device (3201) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (3201) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or additional function or service related to the request, and transmit the result of the execution to the electronic device (3201). The electronic device (3201) may provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (3201) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device (3204) may include an Internet of Things (IoT) device. The server (3208) may be an intelligent server using machine learning and / or neural networks. The external electronic device (3204) or the server (3208) may be included within the second network (3299).The electronic device (3201) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0410] The electronic device according to the various embodiments disclosed in this document may be a device of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device is not limited to the devices described above.

[0411] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In this document, 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 component from another component and do not limit the components in any other aspect (e.g., importance or order). Where any component (e.g., the first) is referred to as "coupled" or "connected" to another component (e.g., the second), with or without the terms "functionally" or "communicationally," it means that said component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0412] As used in the various embodiments of this document, the term “module” may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof that performs one or more functions. For example, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0413] Various embodiments of this document may be implemented as software (e.g., program (3240)) comprising one or more instructions stored in a storage medium (e.g., internal memory (3236) or external memory (3238)) readable by a machine (e.g., electronic device (3201)). For example, a processor (e.g., processor (3220)) of the machine (e.g., electronic device (3201)) may call at least one of the one or more instructions stored from the storage medium and execute it. This enables the machine to be operated to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0414] Methods according to the various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or distributed online (e.g., download or upload) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0415] According to various embodiments, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to various embodiments, one or more of the components or operations among the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to various embodiments, operations performed by the module, program, or other components may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an electronic device, 1st housing part; A second housing part having a thinner thickness than the first housing part; A hinge structure rotatably connecting the first housing part and the second housing part; and A display disposed on the first housing part and the second housing part, and The above hinge structure is, A bracket located at the center of the above hinge structure; and It includes a first hinge part connected to one side of the bracket and the first housing part, and a second hinge part connected to the other side of the bracket and the second housing part. The first hinge part and the second hinge part have an asymmetric structure with respect to each other, and the radius of rotation of the first hinge part is larger than the radius of rotation of the second hinge part, and In the folded state of the electronic device, the first housing part and the second housing part are folded along a folding axis, and the display has an asymmetrical shape with respect to the bracket of the hinge structure. Electronic device.

2. In Claim 1, The first hinge part of the above hinge structure is, A link fixedly coupled to the first housing part; and It includes a first rotating arm comprising a first end rotatably coupled to one side of the bracket and a second end rotatably coupled to the link, The second hinge part of the above hinge structure is, It includes a second rotating arm comprising a first end rotatably coupled to the other side of the bracket and a second end fixedly coupled to the second housing part, The above display includes a portion supported by the first rotating arm and the second rotating arm within the unfolded state of the first housing part and the second housing part, and In the folded state of the first housing part and the second housing part, the first rotating arm is tilted such that the second end of the first rotating arm is closer to the second rotating arm than the first end of the first rotating arm, and The above portion of the display has an asymmetric teardrop shape that is more convex in the direction of the first rotating arm than in the direction of the second rotating arm when the first housing part and the second housing part are folded. Electronic device.

3. In Claim 2, The above asymmetric teardrop shape is the shape when the display is viewed in a direction parallel to the folding axis of the first housing part and the second housing part, Electronic device.

4. In any one of claims 1 to 3, It includes a hinge housing that covers a part of the above hinge structure and in which the bracket is fixedly positioned, The above hinge housing is: A first part that accommodates the one side of the bracket; and It includes a second part that accommodates the other side of the bracket, The thickness of the second portion of the hinge housing is thinner than the thickness of the first portion of the hinge housing. Electronic device.

5. In Claim 4, The thickness of the first portion of the hinge housing and the thickness of the second portion of the hinge housing are lengths along a first direction substantially perpendicular to the display within the unfolded state of the first housing part and the second housing part. Electronic device.

6. In Claim 5, The first part of the hinge housing is covered by a part of the first housing part or exposed to the outside of the electronic device depending on the rotation of the first housing part, and The second part of the hinge housing is covered by a part of the second housing part or exposed to the outside of the electronic device depending on the rotation of the second housing part, In the unfolded state of the first housing part and the second housing part, the portion of the second housing part covering the second portion of the hinge housing faces the first portion of the hinge housing. Electronic device.

7. In Claim 5, The width of the second part of the hinge housing along the folding axis of the first housing part and the second housing part and the second direction perpendicular to the first direction is smaller than the width of the first part of the hinge housing. Electronic device.

8. In Claim 7, The center of the total width of the hinge housing according to the second direction is located within the first part of the hinge housing, Electronic device.

9. In Claim 8, The first housing part includes a seating surface that partially supports the display, and In a folded state of the first housing part and the second housing part, a virtual plane is defined that includes the center of the hinge housing and is parallel to the seating surface of the first housing part, and In the folded state of the first housing part and the second housing part, the seating surface of the first housing part is positioned so as to be offset from the virtual surface toward the second housing part. Electronic device.

10. In any one of claims 4 to 9, One side of the above bracket defines a projection that is movably coupled to a first guide rail formed on the first rotating arm to guide the rotation of the first rotating arm with respect to the bracket, and The other side of the bracket and the second part of the hinge housing together define a second guide rail to which a projection formed on the second rotating arm is movably coupled in order to guide the rotation of the second rotating arm relative to the bracket. Electronic device.

11. In any one of claims 1 to 10, The first hinge part of the above hinge structure is: Another link fixedly coupled to the first housing part; and A first spiral arm comprising a first end rotatably coupled to one side of the bracket and a second end rotatably coupled to the other link, and The second hinge part of the above hinge structure is: It includes a first end rotatably coupled to the other side of the bracket and a second end fixedly coupled to the second housing part, and includes a second spiral arm opposite to the first spiral arm. The above display includes another part supported by the first support surface of the first spiral arm and the second support surface of the second spiral arm within the unfolded state of the first housing part and the second housing part, and The first support surface of the first spiral arm is inclined with respect to the second support surface of the first rotating arm and the second spiral arm within the folded state of the first housing part and the second housing part, and The second support surface of the second spiral arm is substantially parallel to the second housing part. Electronic device.

12. In Claim 11, The other part of the above display has an asymmetric teardrop shape that is more convex in the direction of the first spiral arm than in the direction of the second spiral arm when the first housing part and the second housing part are folded. Electronic device.

13. In claim 11 or claim 12, The area of ​​the second support surface is larger than the area of ​​the first support surface. Electronic device.

14. In any one of claims 11 to 13, In the state where the first housing part and the second housing part are unfolded, the straight line connecting the rotation axis of the first end of the first spiral arm and the rotation axis of the first end of the second spiral arm is not parallel to the display. Electronic device.

15. In any one of claims 11 to 14, The above hinge structure is: A bar extending parallel to the folding axis of the first housing part and the second housing part; and It includes a spiral link coupled to the above bar so as to be slidable, and The above spiral link is: A first spiral rail is formed, and a first side portion facing the direction of the first housing part; and A second spiral rail is formed and includes a second side portion opposite to the first side portion of the spiral link and facing the direction of the second housing part, and The first portion of the first end of the first spiral arm is rotatably coupled to the one side of the bracket, and The second portion of the first end of the first spiral arm is coupled to the first side portion of the spiral link so as to be rotatable along the first spiral rail, and The first portion of the first end of the second spiral arm is rotatably coupled to the other side of the bracket, and The second portion of the first end of the second spiral arm is coupled to the second side portion of the spiral link so as to be rotatable along the second spiral rail, and The spiral link is configured to slide along the bar while the first spiral arm rotates about the first side portion of the spiral link and the second spiral arm rotates about the second side portion of the spiral link. Electronic device.

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