TWI720692B - Foldable device - Google Patents

Abstract

A foldable device includes: a flexible display comprising a first part, a second part, and a third part disposed between the first and second parts; a first body supporting the first part; and a second body foldably connected to the first part and supporting the second part. The first and second bodies are configured to be disposed in a folded position and an unfolded position. When the first body and the second body are in the folded position, the first and second bodies form a receiving space. When the first and second bodies are in the folded position, the third part forms a curved portion and the curved portion is disposed within the receiving space. The first body is configured to support the first part such that the first part may be moved in a longitudinal direction of the flexible display.

Description

Foldable device

The present invention is a foldable device, and particularly relates to a foldable device including a flexible display. >Related Application Cases>

This application claims the U.S. Patent Provisional Application No. 62/018,112 filed in the U.S. Patent and Trademark Office on June 27, 2014, and the Korean Patent Application filed in the Korean Intellectual Property Office on August 7, 2014 The rights and interests of No. 10-2014-0101795 and Korean Patent Application No. 10-2015-0073094 filed on May 26, 2015, the disclosure of which is incorporated herein by reference in its entirety.

Portable foldable devices such as communication terminals, game consoles, multimedia devices, portable computers or photographing equipment (hereinafter referred to as mobile devices) include a display device that displays image information and an input unit such as a keypad. Many mobile devices include a foldable structure that can be folded into a smaller size to improve portability. In these mobile devices, the two bodies are connected to each other using a foldable structure. Because the conventional display is not foldable, the conventional display can be placed on one of the two bodies. Therefore, it is difficult to apply a large display device to a mobile device including a foldable structure.

With the development of flexible displays, attempts have been made to apply flexible display devices to mobile devices including foldable structures. In this situation, because the flexible display device can be placed on the two bodies and cross the foldable structure, a larger screen can be provided. However, although the flexible display device can be bent, if the flexible display device is bent severely, the flexible display device itself may be damaged. Therefore, when the flexible display device is folded, a curved portion having a predetermined curvature is formed in the center of the flexible display device. Therefore, when the flexible display device is folded for a long time and then unfolded, the bent portion may not be able to be flattened.

One or more exemplary embodiments include a foldable device that can reduce the compressive force and tension applied to the flexible display during a folding or unfolding procedure.

One or more exemplary embodiments include a foldable device that can reduce the space between the flexible display and the first and second bodies during a folding or unfolding procedure.

One or more exemplary embodiments include a foldable device that can enable a curved portion of a flexible display to maintain a natural curved shape at a predetermined expansion angle between a folded position and an expanded position.

One or more exemplary embodiments include a foldable device that can cover the gap formed between the flexible display device and the first and second bodies during a folding or unfolding process.

One or more exemplary embodiments include a foldable device that can be maintained at a predetermined deployment angle.

According to one or more exemplary embodiments, a foldable device includes: a flexible display including a first part, a second part, and a third part disposed between the first part and the second part; a first body, which Configured to support the first part; and a second body foldably connected to the first part and configured to support the second part. The first body and the second body can be configured to be placed in the folded position and the unfolded position. When the first body and the second body are placed in the folded position, the first body and the second body can form a receiving space. When the first body and the second body are arranged in the folded position, the third part can form a curved part of the flexible display, and the curved part can be arranged in the receiving space. The first body may be configured to support the first part so that the first part can move in the longitudinal direction of the flexible display.

The second part may be fixed to the second body.

The foldable device may further include a controller configured to control the operation of the foldable device; and a signal line connecting the flexible display and the controller. The controller can be installed in the second body.

The foldable device may further include a battery configured to supply power to the controller and the flexible display. The battery can be placed in the first body.

The first body may include: a fixed frame; a movable frame to which the first part of the flexible display is fixed; a first rail provided on the movable frame; and a second rail provided on the fixed frame The second rail is coupled to the first rail and is configured to support the movable frame so that the movable frame can move relative to the fixed frame.

The foldable device may further include an anti-friction component disposed between the fixed frame and the movable frame and configured to reduce friction between the movable frame and the fixed frame.

The anti-friction component may include a film and be attached to the fixed frame.

The first body may further include a bottom cover fixed to the fixing frame by a fastening member. The fixing frame may include an opening through which the fixing part passes. The bottom cover and the fixing frame can form a receiving space for the circuit. Anti-friction parts can cover the opening.

The foldable device may further include a rail member coupled to the fixed frame and forming a second rail.

The fastening part may couple the rail part to the fixed frame. The fixing frame may include a fastening hole having a closed lower end portion to which the fastening member is attached.

The first body may include a bottom cover coupled to the fixed frame, the bottom cover and the fixed frame may form a receiving space for the circuit, and the circuit includes a battery configured to supply power to the flexible display.

The foldable device may further include a controller disposed in the second body and configured to control the operation of the foldable device. The battery can be configured to supply power to the flexible display via the controller.

The foldable device may further include a stopper configured to limit the range of movement of the first part of the flexible display.

The stopper may be configured to allow the first part of the flexible display to move only when the expansion angle of the first and second bodies is equal to or greater than the movement restriction angle.

The movement limit angle is equal to or greater than 90°.

The movement limit angle is equal to or greater than 120°.

The first body may include: a movable frame to which the first part of the flexible display is fixed; and a fixed frame configured to support the movable frame so that the movable frame can move in a longitudinal direction. The stopper may be configured to contact the movable frame at a movement restriction angle.

The foldable device may further include a resistance member configured to apply a force resisting the movement of the first part of the flexible display relative to the first body when the first and second bodies are changed from the unfolded position to the folded position .

The foldable device may further include a stopper configured to allow the first part of the flexible display to move only when the expansion angle of the first and second bodies is equal to or greater than the movement restriction angle. The resistance member may be configured to apply a force that opposes the movement of the first part of the flexible display only when the deployment angle is equal to or greater than the movement restriction angle.

As the deployment angles of the first and second bodies decrease, the resistance member can exert a relatively high force against the movement of the first part of the flexible display.

The foldable device may further include a shield disposed on the first and second bodies and configured to cover the side of the third part when the first and second bodies are changed between the folded position and the unfolded position.

The shield may include a first end and a second end. The guide member may be formed in one of the first body and the second body, the first end of the shield may include an insertion protrusion that is slidably connected to the guide member, and the second end of the shield may It is pivotally connected to the other of the first body or the second body that does not include the guide.

The guide may extend in the longitudinal direction on the first or second body.

The first body can be configured to pivot about the first central axis to transition between the folded position and the unfolded position, and the second body can be configured to pivot about the second central axis to be between the folded position and the unfolded position Transition, and the first center axis and the second center axis may be spaced apart.

The foldable device may further include: a first gear arranged along the first central axis; and a second gear arranged along the second central axis, which meshes with the first gear.

The first and second bodies can be configured to be maintained in the unfolded position and maintained at a predetermined unfolding angle between the unfolded position and the folded position.

The foldable device may further include: an opposing arm provided on one of the first and second bodies, the opposing arm including an opposing portion; and an opposing arm provided on the other of the first and second bodies The elastic arm includes a first contact portion configured to contact the opposing portion when the first and second bodies are in the deployed position.

The elastic arm may further include a second contact part inclined with respect to the first contact part, and the second contact part may be configured to contact the opposing part when the first and second bodies are at a predetermined expansion angle, and the first and The second body is maintained at a predetermined expansion angle.

The opposite arm can be configured to contact the elastic arm and deform when the first and second bodies change from the folded position and the unfolded position.

The first body may include a fixed frame, and a movable frame to which the first part of the flexible display is fixed and configured to be supported on the fixed frame to move in a longitudinal direction, wherein the foldable device further includes a configured A restriction unit that restricts the amount of movement of the movable frame in the longitudinal direction when the first and second bodies are folded or unfolded.

The first and second bodies can pivot around first and second central axes spaced apart from each other, and are arranged in the folded position and the unfolded position. The restricting unit may include: a first sliding member connected to the movable frame; a pulley; and a first connecting member configured to use the first and second bodies wound around the pulley when the first and second bodies are folded or unfolded The amount of the connecting part changes to move the first slider. The restricting unit may further include: a rack connected to the first connecting member in a sliding manner; and a pinion gear rotatably connected to the rack, wherein the first rack portion meshed with the pinion gear is provided on the first slider. The first connecting member may include a flexible wire, wherein the restricting unit further includes a return spring that applies tension to the first connecting member. The first connecting member may have bending elasticity.

The foldable device may further include: first and second receivers, which are disposed on the first and second bodies so as to be between the first position forming the receiving space and the second position supporting the third part of the flexible display And a supporting unit configured to maintain the first and second receivers in the second position until the first and second bodies reach the receiving start position from the deployed position, and are configured to allow the first And the second receiver moves to the first position when the first and second bodies expand beyond the receiving start position.

The first and second bodies can pivot around first and second central axes spaced apart from each other, and can be arranged in a folded position and an unfolded position. The supporting unit may include: a rotating cam configured to support the first and second receivers and including a first cam track corresponding to the second position and a second cam track corresponding to the first position; a pulley; and a second The connecting member is configured to rotate the rotating cam by using a change in the amount of the second connecting member wound around the pulley when the first and second bodies are folded or unfolded. The supporting unit may further include: a second sliding member that is slidably connected to the second connecting member and includes a second rack portion; and a pinion gear that is configured to mesh with the second rack portion and rotate together, and Connect to the rotating cam. The second connection member may include a flexible wire, wherein the support unit further includes a return spring that applies tension to the second connection member. The second connecting member may have bending elasticity.

According to one or more exemplary embodiments, a foldable device includes: a flexible display including a first part, a second part, and a third part disposed between the first part and the second part; a first body, which The second body is configured to support the first part; the second body is foldably connected to the first body and configured to support the second part; and the shielding member is disposed on the first and second bodies. The first body and the second body can be configured to be in the folded position and the unfolded position. When the first body and the second body are placed in the folded position, the first body and the second body form a receiving space, and when the first body and the second body are placed in the folded position, the third part forms a flexible display The curved part of the curved part, and the curved part is arranged in the receiving space. The shield may be configured to cover the side of the third part of the flexible display when the first and second bodies are changed between the folded position and the unfolded position.

The shield may include a first end and a second end. The guide member may be formed in one of the first body and the second body. The first end of the shield may include an insertion protrusion slidably connected to the guide, and the second end of the shield may be pivotally connected to the first body or the second body does not include the guide The other one.

The guide may extend in the longitudinal direction on the first or second body.

Additional aspects will be partly set forth in the following description, and partly will be obvious from the description, or can be learned through the exemplary embodiments presented in practice.

Reference will now be made in detail to one or more exemplary embodiments, examples of which are illustrated in the accompanying drawings, wherein similar reference numbers indicate similar elements throughout the text, and the size or thickness of the elements may be exaggerated for clarity.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. When preceding the list of elements, expressions such as "at least one of..." modify the entire list of elements, and do not modify individual elements of the list.

FIG. 1 is a perspective view illustrating a foldable device 100 according to an exemplary embodiment. FIG. 2 is a side view illustrating the foldable device 100 of FIG. 1 in an unfolded state according to an exemplary embodiment. FIG. 3 is a side view illustrating a folded state of the foldable device 100 of FIG. 1 according to an exemplary embodiment.

1 to 3, the foldable device 100 includes a first body 1 and a second body 2 and a flexible display device 4, that is, a flexible display. The first body 1 and the second body 2 are connected to each other and are configured to change between the unfolded position of FIG. 2 and the folded position of FIG. 3.

The flexible display device 4 is supported by the first body 1 and the second body 2. The flexible display device 4 can be divided into a first part 4a (that is, a first section) supported by the first body 1 and a second part 4b (that is, a second section) supported by the second body 2 And the third part 4c (that is, the third section) between the first body 1 and the second body 2. The flexible display device 4 can be adhered to the first body 1 and the second body 2 by using an adhesive unit (ie, an adhesive such as a non-limiting example of tape or double-sided tape). The third part 4c of the flexible display device 4 is not supported by the first body 1 or the second body 2. That is, the third part 4c is not adhered to the first body 1 and the second body 2. When the first body 1 and the second body 2 are in the folded position of FIG. 3, the third portion 4c forms a curved portion 4d having a predetermined radius of curvature. Therefore, because the flexible display device 4 is not very bent, the third part 4c can be bent to form a bent part 4d or be flat, and the first body 1 and the second body 2 can be in the folded position and the unfolded position. Time change.

The foldable device 100 may be a portable mobile device, such as a communication terminal, a game console, a multimedia device, a portable computer, or a photographing device. However, one or more exemplary embodiments are not limited thereto, and the foldable device 100 may be any device as long as the device includes the first body 1 supporting the first portion 4a of the flexible display device 4 and the flexible display device 4 The second part 4b of the sexual display device 4 can be foldably connected to the second body 2 of the first body 1.

FIG. 4 is a cross-sectional view of a flexible display device 4 according to an exemplary embodiment. Referring to FIG. 4, the flexible display device 4 may include a flexible display panel 41 capable of displaying images and a transparent protective panel 43 disposed on the outer surface of the flexible display panel 41. The flexible display panel 41 may be, for example, an organic light emitting diode (OLED) panel. When the flexible display panel 41 is an OLED panel, the organic emission layer may be disposed between the upper substrate and the lower substrate. The polarizing plate is arranged on the upper substrate that emits light. Moreover, the flexible display device 4 may further include a touch panel 42 as an input unit (ie, input). The touch panel 42 can be disposed between the transparent protection panel 43 and the flexible display panel 41. The flexible display panel 41, the touch panel 42, and the transparent protective panel 43 can be adhered to each other by using (as a non-limiting example) an optically transparent adhesive (OCA) layer. However, one or more exemplary embodiments are not limited thereto, and the flexible display device 4 may further include various optical panels or optical films.

A processing unit (that is, a processor or a controller) and an input/output (I/O) unit (that is, a transceiver or an I/O interface) for performing functions according to the use of the foldable device 100 may be provided in Inside the first body 1 and the second body 2. When the foldable device 100 is a multimedia terminal that provides images and music to the user, the processing unit may include an image/audio information processing unit, that is, an image/audio processor. When the foldable device 100 is a communication terminal, the processing unit may include a communication module. The I/O unit may include an image/audio I/O unit and a manipulation unit for user manipulation, such as an input panel or an input button. The manipulation unit can be realized by using the touch panel 42 of the flexible display device 4.

FIG. 5 is an exploded perspective view of the foldable device 100 according to an exemplary embodiment. FIG. 6 is a detailed perspective view illustrating part "A" of FIG. 5 according to an exemplary embodiment. FIG. 7 is a cross-sectional view taken along line BB′ of FIG. 6 according to an exemplary embodiment.

Referring to FIG. 5, the first body 1 includes a first bottom cover 11 and a first frame 12. The first bottom cover 11 defines the external appearance of the first body 1. The first frame 12 is disposed in the first bottom cover 11. The first frame 12 includes a first support 121 supporting the first portion 4 a of the flexible display device 4 and a first receiver 122 inclined downward from the first support 121. The first receiver 122 corresponds to a part of the third part 4c of the flexible display device 4. The second body 2 includes a second bottom cover 21 and a second frame 22. The second bottom cover 21 defines the external appearance of the second body 2. The second frame 22 is disposed in the second bottom cover 21. The second frame 22 includes a second support 221 supporting the second part 4 b of the flexible display device 4 and a second receiver 222 inclined downward from the second support 221. The second receiver 222 corresponds to a part of the third part 4c of the flexible display device 4.

The first receiver 122 and the second receiver 222 face each other when the first body 1 and the second body 2 are in the folded position of FIG. 3, thereby forming a receiving space for receiving the curved portion 4 d of the display panel 4. For this purpose, the first receiver 122 and the second receiver 222 are inclined downward so as to be away from the first and second support members 121 and 221 and the third portion 4c of the flexible display device 4.

Referring to FIGS. 5 and 6, the connecting unit 3 (ie, the connector) foldably connects the first body 1 and the second body 2. In the foldable device 100 of the exemplary embodiment of the present invention, the first body 1 and the second body 2 respectively surround two central axes (for example, the first and second central axes 30-1 and 30- that are spaced apart from each other). 2) Pivoting. The connecting unit 3 may include a connecting bracket 31 forming a pair of first connecting holes 32-1 and 32-2, and a second connecting hole 33-1 and a second connecting hole 33-1 formed in the first body 1 and the second body 2, respectively. 33-2 and inserted into a pair of hinge members 34-1 and 34-2 (that is, hinges) in a pair of first connection holes 32-1 and 32-2. The second connecting holes 33-1 and 33-2 may be formed in the side walls 12a and 22a of the first and second frames 12 and 22, respectively.

6 and 7, each of the hinge members 34-1 and 34-2 includes an insertion portion 34a having a cylindrical shape and inserted into the second connection holes 33-1 and 33-2, and a larger insertion portion 34a. The outer diameter of the larger outer diameter stepped portion 34b. The insertion portion 34a provides central axes 30-1 and 30-2 around which the first body 1 and the second body 2 pivot. The stepped portion 34b is supported in the first body 1 and the second body 2. Screw holes 34c are axially formed in the insertion portions 34a, respectively. When the insertion portions 34a of the hinge members 34-1 and 34-2 pass through the second connection holes 33-1 and 33-2 and are inserted into the first connection holes 32-1 and 32-2, the screws S are lifted from the ladder shape The opposite side of the portion 34b is inserted into the screw hole 34c. Therefore, the first body 1 and the second body 2 can be coupled to the connection bracket 31 so that the first body 1 and the second body 2 can pivot around the insertion portions 34a of the hinge parts 34-1 and 34-2. Using this connection structure, the first body 1 and the second body 2 can be connected to each other so that they can be changed between the unfolded position of FIG. 2 and the folded position of FIG. 3.

The connecting structure for foldably connecting the first body 1 and the second body 2 is not limited to the connecting structure described with reference to FIGS. 6 and 7. FIG. 8A is a side view illustrating a modified connection structure according to an exemplary embodiment. The modified connection structure of FIG. 8A can be obtained by adding a gear structure to the connection structure of FIG. 6. Referring to FIG. 8A, the first and second gears 35-1 and 35-2 meshing with each other are provided on the side walls 12a and 22a of the first and second frames 12 and 22, respectively. The centers of the first and second 35-1 and 35-2 correspond to the centers of the second connecting holes 33-1 and 33-2, respectively.

In the connection structure that does not include the first and second gears 35-1 and 35-2, because the first body 1 and the second body 2 may not pivot synchronously during the folding or unfolding procedure, the first body 1 and the second body The two bodies 2 may be misaligned with each other in the unfolded state of FIG. 8B. The first body 1 and the second body 2 may not be aligned. The misalignment may be caused by the elastic force of the elastic unit (ie, the bracket) which will be described below. When the first body 1 and the second body 2 are not aligned with each other, the height difference 4e may appear in the third part 4c of the flexible display device 4. In the connection structure of FIG. 8A, because the first and second gears 35-1 and 35-2 mesh with each other, the first body 1 and the second body 2 pivot synchronously during the folding or unfolding procedure. Therefore, the first body 1 and the second body 2 are not misaligned with each other during the folding or unfolding process. In addition, the elastic unit can be operated correctly.

Referring back to FIG. 5, the cover member 5 (ie, the cover) surrounds the connecting portion between the first body 1 and the second body 2, thereby preventing the inside of the foldable device 100 from being exposed to the outside. For example, the cover member 5 may include an extension portion 51 extending along the opposite edges 13 and 23 (FIG. 6) of the first body 1 and the second body 2 and side walls 52 located on both ends of the extension portion 51. The recess 53 is formed in the inner surface of the side wall 52. The recess 53 is shaped so that the connection bracket 31 can be inserted into each of the recesses 53. The cover member 5 can be coupled to the first body 1 and the second body 2 by slightly widening the side wall 52 outward and inserting the connecting bracket 31 into the recess 53. When the first body 1 and the second body 2 are in the folded position, the opposed edges 13 and 23 of the first body 1 and the second body 2 can be spaced apart from each other, and the interior of the foldable device 100 can be spaced apart from each other. Expose to the space between edges 13 and 23. The cover member 5 covers the space between the facing edges 13 and 23 so as to prevent the inside of the foldable device 100 from being exposed. Therefore, the aesthetics of the foldable device 100 can be improved. In addition, the cover member 5 can protect the inside of the foldable device 100 from foreign materials or impacts.

The foldable device 100 can be carried and kept in the folded state of FIG. 3 and changed to the unfolded state of FIG. 2. In the unfolded state, the third portion 4c of the flexible display device 4 can be warped downward due to gravity, and can be temporarily deformed. In addition, when the flexible display device 4 is maintained in the folded state for a long time, the third portion 4c can be permanently deformed. The multiple film layers of the flexible display device 4 are adhered to each other by using an adhesive layer. For the adhesive layer, it may take a relatively long time (delay time) to change from bending to completely flat depending on the mobility of the adhesive layer. During the delay time, the flexible display device 4 is bent. Due to the temporary or permanent deformation of the adhesive layer, even when the first body 1 and the second body 2 are unfolded, the flexible display device 4 may not be completely flat, thereby hindering the display of the image on the display device 4 . Moreover, when the flexible display device 4 cannot be fully extended, the first body 1 and the second body 2 may not be fully deployed. Even when the user applies an external force to the first body 1 and the second body 2 in an attempt to fully unfold the first body 1 and the second body 2, the first body 1 and the second body 2 may still be slightly folded, as shown in FIG. 9 As shown in the figure, this is due to the mobility of the adhesive layer and the restoring force caused by the temporary or permanent deformation of the flexible display device 4. Therefore, in order to use the foldable device 100, the user must apply force to the first body 1 and the second body 2 so that the first body 1 and the second body 2 are fully expanded.

According to the foldable device 100 of one or more exemplary embodiments, the elastic unit for applying elastic force to the first body 1 and the second body 2 is used to maintain the first body 1 and the second body 2 in a complete state. Expanded state. In the fully deployed state, the elastic unit applies elastic force to the first body 1 and the second body 2 so that the first body 1 and the second body 2 are flattened. Due to the elastic force, tension can be applied to the flexible display device 4, and the third portion 4c of the flexible display device 4 can be stretched flat.

In an exemplary embodiment, referring to FIG. 5, the elastic unit may include an elastic arm 61 provided on the first body 1 and an opposite arm 62 provided on the second body 2 facing the elastic arm 61. The elastic arm 61 and the opposite arm 62 can be positioned adjacent to the opposite edges 13 and 23 of the first body 1 and the second body 2, respectively. The elastic arm 61 and the opposite arm 62 are spaced apart from each other when the first body 1 and the second body 2 are in the folded position. When the first body 1 and the second body 2 are in the deployed position, the elastic arm 61 contacts the opposing arm 62 and is elastically deformed, and thus the elastic force is applied to the opposing arm 62 so that the first body 1 and the second body 2 Push to the unfolded position. Due to the elastic force of the elastic arm 61, the second body 2 is forced to be spaced apart from the first body 1, and therefore the third portion 4c of the flexible display device 4 is flattened.

The elastic arm 61 and the opposing arm 62 can be integrally formed with the first and second bottom covers 11 and 21 or the first and second frames 12 and 22. In the exemplary embodiment illustrated in FIG. 5, the elastic arm 61 and the facing arm 62 are formed integrally with the first and second frames 12 and 22, respectively.

FIG. 10 is a cross-sectional view taken along line CC′ of FIG. 5 according to an exemplary embodiment. 10, the elastic arm 61 and the opposite arm 62 extend from the first and second bottom covers 11 and 21, respectively, and face each other. The elastic arm 61 includes a first contact portion 61-1 that contacts the opposing portion 62 a of the opposing arm 62 when the first body 1 and the second body 2 are in the deployed position. The first contact portion 61-1 and the facing portion 62 a of one or more exemplary embodiments have a planar shape. The first contact portion 61-1 is inclined at an angle D1 with respect to the facing portion 62a. The angle D1 can be determined so that when the first body 1 and the second body 2 are in the deployed position and the elastic arm 61 is pushed by the opposing arm 62 to deform, the first contact portion 61-1 is parallel or substantially parallel to the opposing portion 62a. Therefore, when the first body 1 and the second body 2 are in the deployed position, the first contact portion 61-1 and the facing portion 62a are in contact with each other, and thus the first body 1 and the second body 2 can be maintained in the deployed state. At least two parts of the elastic arm 61 may contact the opposing part 62a in at least two positions spaced apart from each other in the pivoting direction of the first body 1 and the second body 2.

FIG. 11 is a perspective view illustrating a state in which the first body 1 and the second body 2 are stopped at a deployment angle E according to an exemplary embodiment. Referring to FIG. 11, the first body 1 and the second body 2 can be stopped in at least one position between the folded state and the fully expanded state. The expansion angle E between the first body 1 and the second body 2 may range from about 90° to about 180°, for example, about 120°. In this configuration, for example, an input unit (ie, input) such as a keyboard or an input icon can be displayed on the second part 4b of the flexible display device 4, and the screen corresponding to the command input via the input unit can be It is displayed on the first part 4a of the flexible display device 4.

Referring to FIG. 10, the elastic arm 61 may further include a second contact portion 61-2 inclined with respect to the first contact portion 61-1. The second contact portion 61-2 may have a planar shape. The second contact portion 61-2 is inclined at an angle D2 with respect to the facing portion 62a. The second contact portion 61-2 is distinguished from the first contact portion 61-1 by a boundary portion 61-3 which is a protrusion facing the second body 2. The angle D2 can be determined such that when the first body 1 and the second body 2 are in the position with the expanded angle E, the second contact portion 61-2 is parallel to the facing portion 62a. Therefore, the second contact portion 61-2 can contact the opposite portion 62a, and can maintain the first body 1 and the second body 2 in a partially folded state with an unfolding angle E.

Figures 12A, 12B, 12C, and 12D are cross-sectional views illustrating the following situation: the first body 1 and the second body 2 are in the folded position, the first body 1 and the second body 2 begin to unfold, and the first body 1 And the second body 2 are maintained at a predetermined deployment angle, and the first body 1 and the second body 2 are fully deployed. The folding and unfolding of the first body 1 and the second body 2 will now be explained with reference to FIGS. 12A to 12D.

Referring to FIG. 12A, when the first body 1 and the second body 2 are in the folded position, the elastic arm 61 and the opposite arm 62 are spaced apart from each other. The curved portion 4d of the flexible display device 4 is received between the first receiver 122 and the second receiver 222.

When the first body 1 and the second body 2 are expanded as shown in FIG. 12B, the elastic arm 61 contacts the opposing arm 62. When the first body 1 and the second body 2 are further unfolded, the opposite arm 62 pushes the elastic arm 61.

When the angle between the first body 1 and the second body 2 reaches the deployment angle E (as shown in FIG. 12C ), the second contact portion 61-2 of the elastic arm 61 contacts the opposing portion 62 a of the opposing arm 62. The angle between the first body 1 and the second body 2 can be maintained at the deployment angle E. Also, even when a force for further unfolding or folding the first body 1 and the second body 2 from the partially unfolded position is applied to the first body 1 and the second body 2, unless the first body 1 and the second body 2 The angle therebetween exceeds the angle at which the contact between the second contact portion 61-2 and the opposing portion 62a is completely terminated, and the first body 1 and the second body 2 are still returned to be expanded due to the elastic force of the elastic arm 61 The state of angle E.

When the first body 1 and the second body 2 are further unfolded, the contact between the second contact portion 61-2 and the facing portion 62a is terminated, and as shown in FIG. 12D, the first contact portion 61-1 is in contact with the facing portion 62a. Part 62a. Even when the external force for unfolding the first body 1 and the second body 2 is removed, the first body 1 and the second body 2 are maintained in a fully unfolded state. Also, even when the force for folding the first body 1 and the second body 2 is applied to the first body 1 and the second body 2, unless the angle between the first body 1 and the second body 2 exceeds the first body 1 and the second body 2 At the angle at which the contact between the contact portion 61-1 and the facing portion 62a is completely terminated, the first body 1 and the second body 2 still return to the fully expanded state due to the elastic force of the elastic arm 61. In this state, the elastic arm 61 elastically contacts the opposing arm 62 and applies an elastic force to push the first body 1 and the second body 2 apart from each other. Due to the elastic force, the third portion 4c of the flexible display device 4 is flattened.

The first body 1 and the second body 2 in the unfolded position of FIG. 12D can be maintained at the unfolded angle E of FIG. 12C, and can be changed to the folded position of FIG. 12A in the reverse order.

Because the elastic unit is used as described above, the third part 4c of the flexible display device 4 can be stretched flat when the first body 1 and the second body 2 are unfolded, and the first body 1 and the second body 2 can be maintained at Fully expanded position. In addition, the first body 1 and the second body 2 can be maintained at a position having an unfolding angle E.

FIG. 13 is a cross-sectional view illustrating an elastic unit according to another exemplary embodiment. Referring to FIG. 13, the facing arm 62 can contact the elastic arm 61 and can be elastically deformed. Hereinafter, the elastic arm 61 and the opposite arm 62 are referred to as a first elastic arm 61 and a second elastic arm 62, respectively. The first elastic arm 61 is the same as the elastic arm 61 of FIG. 9. The second elastic arm 62 can be formed as a whole with the second frame 22 of the second body 2. The facing portion 62a may include first and second facing portions 62-1 and 62-2 having a planar shape and corresponding to the first and second contact portions 61-1 and 61-2, respectively. The second opposite portion 62-2 is distinguished from the first opposite portion 62-1 by the boundary portion 62-3. When the first body 1 and the second body 2 are at the position having the deployment angle E of FIG. 10, the second contact portion 61-2 and the second facing portion 62-2 are in contact with each other, and the first and second elastic arms 61 And 62 elastically deform to each other. When the first body 1 and the second body 2 are in the fully deployed position, the first contact portion 61-1 and the first opposite portion 62-1 can contact and push each other, the flexible display device 4 can be stretched flat, and can be moved The first body 1 and the second body 2 are maintained in a fully expanded position.

Although the first and second elastic arms 61 and 62 are integrally formed with the first body 1 and the second body 2, one or more exemplary embodiments are not limited thereto. FIG. 14 is a cross-sectional view illustrating an elastic unit according to another exemplary embodiment. As shown in FIG. 14, the first elastic arm 61 ′ having the shape of a leaf spring and including the first and second contact portions 61-1 and 61-2 may be coupled to the first frame 12 of the first body 1, for example. In addition, the second elastic arm 62 ′ having the shape of a leaf spring and including the first and second facing portions 62-1 and 62-2 can be coupled to the second frame 22 of the second body 2, for example.

Although the first and second contact portions 61-1 and 61-2 and the first and second facing portions 62-1 and 62-2 having a planar shape are used as elastic units, one or more exemplary embodiments Not limited to this. The first and second contact portions 61-1 and 61-2 or the first and second contact portions 61-1 and 61-2 and the first and second opposed portions 62-1 and 62-2 may have, for example, Curved shape. FIG. 15 is a cross-sectional view illustrating an elastic unit according to another exemplary embodiment.

Referring to FIG. 15, the elastic arm (first elastic arm) 61" including the first and second contact portions 61-1" and 61-2" with curved shapes has a leaf spring shape and is coupled to the first Frame 12. The first and second contact portions 61-1" and 61-2" are distinguished from each other by the boundary portion 61-3". Contains first and second facing portions 62-1'' and 62-2'' with curved shapes corresponding to the first and second contact portions 61-1'' and 61-2'', respectively (The second elastic arm) 62 ″ has a leaf spring shape, and is coupled to the second frame 22. The first and second facing portions 61-2" and 62-2" are distinguished from each other by the boundary portion 62-3".

16A, 16B and 16C are cross-sectional views illustrating the following situation: initially the first body 1 and the second body 2 start to unfold, the first body 1 and the second body 2 are maintained at a predetermined angle, and the first body 1 And the second body 2 is fully expanded. How to fold and unfold the first body 1 and the second body 2 will now be explained with reference to FIGS. 16A to 16C.

When the first body 1 and the second body 2 are folded, the elastic arm 61" and the opposite arm 62" are spaced apart from each other. When the first body 1 and the second body 2 start to unfold (as shown in FIG. 16A), the elastic arm 61" contacts the opposing arm 62". When the first body 1 and the second body 2 are further expanded, the elastic arm 61" is pushed by the facing arm 62". Similarly, the opposite arm 62" is pushed by the elastic arm 61".

When the angle between the first body 1 and the second body 2 reaches the deployment angle E (as shown in FIG. 16B), the second contact portion 61-2" contacts the second opposing portion 62-2". The line L1 along which the elastic force is applied due to the deformation of the elastic arm 61'' and the opposing arm 62'' is below the central axes 30-1 and 30-2 of the first body 1 and the second body 2 Therefore, elastic force is applied to make the first body 1 and the second body 2 fold. However, the rigidity of the flexible display device 4 and the elastic force applied due to the deformation of the elastic arm 61" and the opposite arm 62" are balanced, and the gap between the first body 1 and the second body 2 is balanced. The angle is maintained at the deployment angle E. Even when the first body 1 and the second body 2 are further expanded, unless the first body 1 and the second body 2 are expanded at an angle exceeding the boundary portions 61-3" and 62-3", the first body 1 and The second body 2 will return to the deployment angle E due to the elastic force of the elastic arm 61 ″ and the opposite arm 62 ″.

When the first body 1 and the second body 2 are further unfolded beyond the unfolding angle E, the first contact portion 61-1" contacts the first opposite portion 62-2" (FIG. 16C). The line L2 along which the elastic force is applied due to the deformation of the elastic arm 61'' and the opposing arm 62'' is above the central axis 30-1 and 30-2 of the first body 1 and the second body 2 Therefore, elastic force is applied to keep the first body 1 and the second body 2 unfolded. Therefore, the third portion 4c of the flexible display device 4 is flattened due to the elastic force, and maintains the first body 1 and the second body 2 in a fully expanded state. Even when a force for folding the first body 1 and the second body 2 is applied, unless the first body 1 and the second body 2 are folded at an angle exceeding the boundary portions 61-3" and 62-3", otherwise The first body 1 and the second body 2 still return to the fully expanded state due to the elastic force of the elastic arm 61" and the opposite arm 62".

According to the connection structure including the first and second gears 35-1 and 35-2 of FIG. 8A, the first body 1 and the second body 2 pivot synchronously during the folding or unfolding procedure. Therefore, the elastic arm 61 ′ or 61 ″ and the opposite arm 62 ′ or 62 ″ are symmetrical around the center of the line connecting the central axes 30-1 and 30-2 of the first body 1 and the second body 2. Therefore, the elastic arm 61' or 61" and the opposing arm 61' or 61" may be misaligned, and thus can be elastically deformed in a desired direction.

Referring back to FIG. 5, in order to make the third part 4c of the flexible display device 4 flat when the first body 1 and the second body 2 are in the unfolded position, the foldable device 100 may further include a movable support member 7. The movable support member 7 includes a movable support 71 that supports the third part 4c of the flexible display device 4. When the first body 1 and the second body 2 are in the unfolded position, the movable support member 7 is in the support position, wherein the movable support 71 supports the third part 4c of the flexible display device 4. The movable support member 7 supports the third part 4 c of the flexible display device 4 between the first receiver 122 and the second receiver 222. When the first body 1 and the second body 2 are changed to the folded position, the movable support member 7 is in the retracted position to form a receiving space for the curved portion 4d. That is, when the first body 1 and the second body 2 are changed between the folded position and the unfolded position, the movable support member 7 moves between the retracted position and the supporting position. Therefore, when the first body 1 and the second body 2 are in the unfolded position, because the third portion 4c of the flexible display device 4 is supported by the movable supporting member 7, the third portion 4c can be stretched out flat.

FIG. 17 is an exploded perspective view of the movable support member 7 between the support position and the retreat position according to an exemplary embodiment. Referring to FIG. 17, a groove 72 extending in the folding or unfolding direction in which the first body 1 and the second body 2 are folded and unfolded is formed in the movable support member 7. A pair of guiding parts 73-1 and 73-2 are inserted into the groove 72 and are formed around the opposite edges of the first body 1 and the second body 2 adjacent to the connecting unit 3. For example, the guiding parts 73-1 and 73-2 may be respectively provided on the upper ends of the ribs 74-1 and 74-2 extending upward from the first and second frames 12 and 22.

18A and 18B are cross-sectional views illustrating the movable support member 7 in the supporting position and the retreat position, respectively, according to an exemplary embodiment, taken along the line FF′ of FIG. 17. Referring to Figure 18A, the first body 1 and the second body 2 are in a folded position. The guide parts 73-1 and 73-2 are the farthest apart from each other, and the movable support member 7 is in a retreat position. The curved portion 4d of the flexible display device 4 is received in the space formed by the first receiver 122 and the second receiver 222 and the movable supporting member 7.

In the state of FIG. 18A, when the first body 1 and the second body 2 are unfolded, the guiding parts 73-1 and 73-2 slide into the groove 72 to approach each other, and the movable support member 7 faces the flexible display The device 4 is lifted. When the first body 1 and the second body 2 are fully expanded (as shown in FIG. 18B), the movable support member 7 is in the supporting position, and the third part 4c of the flexible display device 4 is supported by the movable support 71 .

In this configuration, when the first body 1 and the second body 2 are in the unfolded position, the third part 4c of the flexible display device 4 can be supported and can be flattened. Moreover, when the first body 1 and the second body 2 are in the folded position, it can be attributed to the retreat from the flexible display device 4 to fix the space in which the curved portion 4 can be received.

According to the connection structure including the first and second gears 35-1 and 35-2 of FIG. 8A, the first body 1 and the second body 2 pivot synchronously during the folding or unfolding procedure. Therefore, the movable support member 7 can be stably raised during the folding or unfolding procedure without tilting to either side. When the first body 1 and the second body 2 are in the unfolded position, the movable support 71 of the movable support member 7 can evenly support the third part 4c of the flexible display device 4.

The portion of the third portion 4c of the flexible display device 4 corresponding to the first receiver 122 and the second receiver 222 between the first and second support members 121 and 221 and the movable support member 7 may be in the first The body 1 and the second body 2 are not supported by another component when they are in the unfolded position. 19A and 19B are side views illustrating a foldable device 100 according to another exemplary embodiment. FIG. 19A illustrates the state in which the first body 1 and the second body 2 are in the folded position. FIG. 19B illustrates a state in which the first body 1 and the second body 2 are in the deployed position. Referring to FIGS. 19A and 19B, the first receiver 122 and the second receiver 222 are pivotally coupled to the first and second support members 121 and 221. When the first body 1 and the second body 2 are in the folded position, the second receivers 122 and 222 are in the first position retracted from the flexible display device 4 so as to receive the curved portion 4d of the flexible display device 4. When the first body 1 and the second body 2 are in the unfolded position, the first receiver 122 and the second receiver 222 are in the second position supporting the third part 4c of the flexible display device 4. When the first body 1 and the second body 2 are changed between the folded position and the unfolded position, the first receiver 122 and the second receiver 222 pivot between the first position and the second position. When the movable support member 7 moves, the first receiver 122 and the second receiver 222 move between the first and second positions. The first pivot lever 81 and the second pivot lever 82 for moving the first receiver 122 and the second receiver 222 between the first and second positions may be provided on the movable support member 7. The first pivot lever 81 and the second pivot lever 82 are formed so that one end of the first pivot lever 81 and the second pivot lever 82 is pivotally supported on the movable support member 7, and the first pivot lever The other ends of the second pivot lever 81 and 82 are connected to or contact the first receiver 122 and the second receiver 222.

Referring to FIG. 19A, when the first body 1 and the second body 2 are in the folded position, the movable support member 7 is in the retracted position. The curved portion 4d is formed in the third portion 4c of the flexible display device 4, and the first receiver 122 and the second receiver 222 are in the first position due to the elasticity of the curved portion 4d.

When the first body 1 and the second body 2 are unfolded, the movable supporting member 7 approaches the flexible display device 4. As the movable support member 7 approaches the flexible display device 4, the distal end portions 124 and 224 of the hinges 123 and 223 of the first receiver 122 and the second receiver 222 are attributed to the first pivot lever 81 and the second pivot lever 81 and the second The pivot lever 82 slowly rises and approaches the flexible display device 4.

As shown in FIG. 19B, when the first body 1 and the second body 2 reach the deployed position, the movable supporting member 7 reaches the supporting position, and the first receiver 122 and the second receiver 222 are rotated by the first pivot lever 81 And the second pivot lever 82 is pushed to pivot around the hinges 123 and 223 and is in the second position. In this state, because the first pivot lever 81 and the second pivot lever 82 are supported by the stoppers 83 and 84 provided on the movable support member 7, the first pivot lever 81 and the second pivot lever 82 no longer pivots. Therefore, the first receiver 122 and the second receiver 222 are not separated from the flexible display device 4 and are in the second position. The movable supporting member 7 supports the third part 4 c of the flexible display device 4 between the first receiver 122 and the second receiver 222.

When the first body 1 and the second body 2 are folded, the movable support member 7 starts to be separated from the flexible display device 4, and the first pivot lever 81 and the second pivot lever 82 are also connected to the flexible display device 4 4 spaced apart. In this situation, the curved portion 4d is slowly formed in the third portion 4c of the flexible display device 4, and the first receiver 122 and the second receiver 222 are pushed by the curved portion 4d to surround the hinge 123 and the hinge toward the first position. 223 pivoted. Therefore, a space for receiving the curved portion 4d is formed in the first body 1 and the second body 2. When the first body 1 and the second body 2 reach the position of FIG. 19A, the movable support member 7 reaches the retreat position, and the first receiver 122 and the second receiver 222 reach the first position.

In this configuration, when the first body 1 and the second body 2 are in the unfolded position, because the third part 4c of the flexible display device 4 is composed of the movable supporting member 7 and the first receiver 122 and the second receiver 222 support, so the flexible display device 4 can be stably supported. Moreover, the third part 4c of the flexible display device 4 can be stretched flat.

In order to reduce the compressive force or tension applied to the flexible display device 4 during the folding or unfolding process, the first portion 4a and/or the second portion 4b of the flexible display device 4 may not be bonded to the first body 1 and second body 2.

FIG. 20 is a side view of a foldable device 100 according to another exemplary embodiment. FIG. 21 is a cross-sectional view taken along line H-H′ of FIG. 20 according to an exemplary embodiment. Referring to FIG. 20, the first part 4a or the second part 4b may be supported by the first body 1 or the second body 2 to move in the directions G1 and G2. For example, referring to FIG. 21, the first frame 12 may include a fixed frame 311 fixed to the bottom cover 11 and a movable frame 312 provided on the fixed frame 311 to slide in the directions G1 and G2. The first rail 314 may be disposed on the movable frame 312, and the second rail 313 where the first rail 314 is inserted and slid may be disposed on the fixed frame 311. The components of the connecting unit 3, the components of the elastic unit and the first receiver 122 may be disposed on the fixed frame 311. The first support 121 supporting the first part 4 a of the flexible display device 4 may be disposed on the movable frame 312.

In this configuration, because the first portion 4a of the flexible display device 4 serves as a free end during the folding or unfolding procedure, the compressive force or tension applied to the flexible display device 4 can be reduced. Furthermore, the possibility that the third portion 4c of the flexible display device 4 is deformed to have the concave or convex shape 4f of FIG. 20 can be reduced.

The second part 4b of the flexible display device 4 can also serve as a free end. To this end, as shown in FIG. 21, the second frame 22 may include a fixed frame 321 fixed to the bottom cover 21 and a movable frame 322 provided on the fixed frame 321 to slide in the directions G1 and G2. The second rail 323 may be disposed on the fixed frame 321, and the first rail 324 inserted into the second rail 323 may be disposed on the movable frame 322. The elements of the connecting unit 3, the elements of the elastic unit, and the second receiver 222 may be disposed on the fixed frame 321. The second support 221 supporting the second part 4b of the flexible display device 4 may be disposed on the movable frame 322.

Because the flexible display device 4 is elastic, even when the first body 1 and the second body 2 are folded, the first body 1 and the second body 2 may still be attributed to the curved portion 4d of the flexible display device 4 The resilience is not completely folded. The foldable device 100 according to one or more exemplary embodiments maintains the first body 1 and the second body 2 in the folded position due to magnetic force. FIG. 22 is a side view illustrating a foldable device 100 according to another exemplary embodiment. FIG. 23 is a cross-sectional view of a magnetic member 91 (ie, a magnet) according to an exemplary embodiment. Referring to FIG. 22, a magnetic member 91 is provided in the first body 1, and an attachment member 92 that faces the magnetic member 91 at the folded position and is attracted to the magnetic member 91 due to magnetic force is provided in the second body 2.

In this configuration, because the magnetic member 91 and the attachment member 92 are attracted to each other when the first body 1 and the second body 2 are in the folded position, the first body 1 and the second body 2 can be maintained in the folded state. This improves portability and storage capacity.

Referring to FIG. 23, the magnetic member 91 may include a magnet 91 a and a magnetic shield member 91 b (ie, a magnetic shield) surrounding the surface of the magnet 91 a excluding the surface 91 a-1 facing the attachment member 92 in the folded state. The magnetic shield member 91b may be, for example, a ferromagnetic member. In this configuration, the magnetic force of the magnet 91a may not affect the adjacent electrical and electronic circuits. Since the magnetic shield member 91b serves as a yoke of the magnetic circuit, the magnetic shield member 91b can concentrate the magnetic force of the magnet 91a toward the attachment member 92 to increase the magnetic force. The magnet 91a may be a permanent magnet.

The attachment member 92 may be formed of any material in a case where it can be attracted to the magnetic member 91. For example, the attachment member 92 may be formed of metal. Also, the attachment member 92 may have a structure similar to that of the magnetic member 91 of FIG. 23.

As described above, the foldable device 100 can be used in the deployed position (see Figure 1). Also, as shown in FIG. 11, the foldable device 100 may be used at a position having an unfolding angle E between the folded position and the unfolded position of the first body 1 and the second body 2. In this situation, when the third portion 4c of the flexible display device 4 fails to have a natural curved shape and is bent to have the concave or convex shape 4f of FIG. 20, the screen displayed on the third portion 4c can be deformed . Because the first part 4a or the second part 4b of the flexible display device 4 is supported on the first body 1 or the second body 2 to slide in the folding or unfolding direction (or longitudinal direction L), the third part 4c may have Naturally curved shape.

FIG. 24 is a side view illustrating a foldable device 100 according to another exemplary embodiment. Referring to FIG. 24, the first part 4a of the flexible display device 4 is supported on the first body 1 to slide in the directions G1 and G2, and the second part 4b is fixed to the second body 2. The foldable device 100 includes at least one circuit component for operating the flexible display device 4, that is, a circuit. The circuit components may include a controller 8 that controls the operation of the foldable device 100 and a battery 9 that supplies power to the flexible display device 4 and the controller 8.

A circuit board including a processing unit (ie, a processor) may be provided as the controller 8, and the controller 8 controls the functions and programs of the foldable device 100. The flexible display device 4 includes a signal line 4-1 connected to the controller 8. The signal line 4-1 may be, for example, a flexible printed circuit board (PCB). The controller 8 is arranged in the second body 2 and provides the signal line 4-1 to the second part 4b of the flexible display device 4. Because the second part 4b is fixed to the second body 2, even when the foldable device 100 is changed between the folded position and the unfolded position, the signal line 4-1 and the controller 8 are still connected stably. The battery 9 is arranged in the first body 1 and is connected to the controller 8 via a power supply line. Power can be supplied to the flexible display device 4 via the controller 8 and the signal line 4-1.

The structure for connecting the first part 4a of the flexible display device 4 to the first body 1 in a sliding manner is not limited to the structure described with reference to FIG. 21. FIG. 25 is a perspective view of a foldable device 100 according to another exemplary embodiment. FIG. 26 is a cross-sectional view taken along line J-J' of FIG. 25 according to an exemplary embodiment. FIG. 27 is a cross-sectional view taken along line K-K′ of FIG. 25 according to an exemplary embodiment. In order to more clearly show the structure for connecting the first part 4a of the flexible display device 4 to the first body 1 in a sliding manner, the flexible display device 4 is not shown in FIG. 25 and is not shown in FIG. 27 The rail part 333 is also a rail. The foldable device 100 of FIGS. 25-27 may be similar to the foldable device 100 described in any of the previous exemplary embodiments, except that the first part 4a of the flexible display device 4 is supported in a sliding manner On the first body 1.

Referring to FIG. 25, the second part 4b of the flexible display device 4 is fixed to the second support 221 of the second frame 22 by using an adhesive or the like. The slot 225 through which the signal line 4-1 of the flexible display device 4 passes is formed in the second frame 22 (see FIG. 24). The first frame 11 includes a fixed frame 331 and a movable frame 332 supported on the fixed frame 331 and capable of sliding relative to the fixed frame 331 in directions G1 and G2. The first part 4a of the flexible display device 4 is fixed to the movable frame 332 by using an adhesive or the like.

Referring to Figures 26 and 27, the movable frame 332 includes a first rail 332-1. The second rail 335 coupled to the first rail 332-1 and configured to guide the sliding movement of the movable frame 332 is disposed on the fixed frame 331. Although the first rail 332-1 has a convex shape, and the second rail 335 into which the first rail 332-1 is inserted has a concave shape, one or more exemplary embodiments are not limited thereto, and the first rail 332-1 may have a concave shape, and the second rail 335 may have a convex shape.

The first rail 332-1 extends in a sliding direction (that is, directions G1 and G2) in which the movable frame 332 can slide. The first rail 332-1 includes a first protrusion 332-1a extending downward and a first protrusion 332-1a in the horizontal direction perpendicular to the directions G1 and G2 (which is the width direction W of the foldable device 100) The extended second protrusion 332-1b. The first movable frame 332 may be formed of, for example, a metal plate. The first rail 332-1 may be formed by bending a metal plate.

The second rail 335 extends in the sliding directions G1 and G2. The recess 331-2 in the top surface 331-1 extending in the directions G1 and G2 is provided in the fixing frame 331. The rail member 333 forming the second rail 335 is disposed in the recess 331-2. The rail member 333 is fixed to the fixing frame 331 by using a fastening member 334 such as a screw. The fastening hole 331-3 into which the fastening member 334 is inserted is formed in the fixing frame 331. The rail member 333 includes a first surface 333-1 and a second surface 333-2 facing the side surface 331-2a and the bottom surface 331-2b of the recess 331-2, respectively. The first surface 333-1 and the second surface 333-2 are spaced apart from the side surface 331-2a and the bottom surface 331-2b of the recess 331-2. Therefore, the second rail 335 on which the first rail 332-1 is placed and slid can be formed.

The movable frame 332 is placed on the fixed frame 331 so that the first rail 332-1 is inserted into the recess 331-2, and the rail member 333 is fastened to the fixed frame 331 by using the fastening member 334. The first rail 332-1 is disposed in the second rail 335, and the first surface 333-1 and the second surface 333-2 of the rail member 333 and the side surface 331- of the recess 331-2 are spaced apart from each other. 2a and the bottom surface 331-2b form the second rail 335. Therefore, the movable frame 332 can be guided along the second rail 335 and can slide in the directions G1 and G2. In addition, because the first rail 332-1 having an “L” shape is inserted into the second rail 335 having an “L” shape, the movable frame 332 is not separated from the fixed frame 331.

The sliding range of the movable frame 332 can be restricted. If the sliding range of the movable frame 332 is too large, the length of the first body 1 must be increased, thereby increasing the size of the foldable device 100. The foldable device 100 may further include a movement restriction member (ie, a stopper) that restricts the sliding range of the movable frame 332. The movement restriction member allows the movable frame 332 to slide only when the deployment angle E of the first body 1 and the second body 2 is equal to or greater than a predetermined movement restriction angle.

In the folded position (see FIG. 3), the third portion 4c of the flexible display device 4 is bent to have a bent portion 4d (see FIG. 3), and is received by the first receiver 122 and the second receiver 222 In the receiving space formed. When the foldable device 100 changes from the unfolded position (see FIG. 2) to the folded position (see FIG. 3) (that is, when the unfolding angle E is gradually reduced from 180°), the movable frame 332 slides in the direction G1, And the formation of the curved portion 4d is delayed. When the deployment angle E of the first body 1 and the second body 2 reaches the movement limit angle and therefore the movable frame 332 no longer slides in the direction G1, the third part 4c of the flexible display device 4 is bent to have a bent part 4d , And received in the receiving space. When the foldable device 100 is changed from the folded position (see FIG. 3) to the unfolded position (see FIG. 2), the curved portion 4d of the third part 4c slowly leaves the receiving space. When the expansion angle E of the first body 1 and the second body 2 reaches the movement limit angle, the movable frame 332 slides in the direction G2, and the curved portion 4d is flattened to the fully expanded position of FIG. 2.

The foldable device 100 can be stopped at an unfolding angle E (see FIG. 11) between the folded position and the unfolded position, and can be used in this state. Since the deployment angle E may be in the range of 90° to about 180°, it can be determined that the sliding range of the movable frame 332 corresponds to the deployment angle E in the range of about 90° to about 180°. In this situation, the movement restriction angle may be equal to or greater than 90°.

Furthermore, according to one or more exemplary embodiments, the foldable device 100 is generally used in a fully expanded state. Although the foldable device 100 can be used in the state of FIG. 11, the foldable device 100 can rarely be used at a deployment angle E less than 120°. In this case, the movement restriction angle may be equal to or greater than 120°. Therefore, it can be determined that the sliding range of the movable frame 332 corresponds to the expansion angle E ranging from about 120° to about 180°, so that at the expansion angle E ranging from about 120° to about 180°, the flexible display device The third portion 4c of 4 is not curved to have a concave or convex shape.

The sliding range of the movable frame 332 in the directions G1 and G2 can be restricted by the length L1 of the recess 331-2. The length L2 of the first rail 332-1 is smaller than the length L1 of the recess 331-2. The movable frame 332 can be slid at a distance that can be calculated as the difference between lengths L1 and L2. When the deployment angle E is, for example, 120°, the first rail 332-1 may contact the side wall 331-2c of the recess 331-2 in the longitudinal direction L. In this situation, the side wall 331-2c may serve as a movement restricting member that restricts the sliding range of the movable frame 332.

Referring to FIG. 27, a movement restricting member 331-6 that contacts the end 332-3 in the longitudinal direction of the movable frame 332 and restricts the sliding range of the movable frame 332 may be provided on the fixed frame 331. For example, when the deployment angle E is 120°, the end 332-3 of the movable frame 332 can contact the movement restricting member 331-6.

When the foldable device 100 is changed from the unfolded state to the folded state in FIG. 25, the third portion 4c of the flexible display device 4 is bent into a circular arc shape. Because the flexible display device 4 is elastic, the flexible display device 4 tends to return to the unfolded state. If both the first part 4a and the second part 4b of the flexible display device 4 are fixed to the first body 1 and the second body 2, the third part 4c may fail to maintain a smoothly curved shape (marked by the solid line in FIG. 20). ), and can be deformed to have the concave or convex shape 4f of FIG. 20. However, because the first portion 4a of the flexible display device 4 is slidably supported on the first body 1, the movable frame 332 slides in the direction G1 due to the elastic force, and the third portion 4c maintains a smoothly curved shape (Marked by the solid line in Figure 20). Therefore, when the foldable device 100 is used in a state having a deployment angle E ranging from, for example, about 180° to about 120°, the image displayed on the third portion 4c can be prevented from being deformed.

The rail member 333 may be formed of a material having low frictional resistance so that the movable frame 332 slides smoothly. For example, the rail member 333 may be formed of polyacetal resin, oil-impregnated plastic resin, or oil-impregnated sintered metal material. Also, as shown in FIG. 27, a friction reducing member 336-1 (that is, a friction reducing agent) may be disposed on the bottom surface 331-2b of the recess 331-2. The anti-friction member 336-1 may be attached to the bottom surface 331-2b of the recess 331-2 by using, for example, an adhesive, tape, or the like. The anti-friction component 336-2 may also be disposed between the top surface 331-1 of the fixed frame 331 and the movable frame 332. The anti-friction members 336-1 and 336-2 may be a film formed of, for example, a fluororesin-based material or a film including a fluororesin-based coating. The anti-friction components 336-1 and 336-2 can reduce at least one of static, dynamic, or rolling friction between the fixed frame 331 and the movable frame 332.

Referring to FIG. 26, the fixing frame 331 is coupled to the bottom cover 11 to form a space in which the battery 9 is received between the fixing frame 331 and the bottom cover 11. It is necessary to limit the exposure of the battery 9 to moisture. For this purpose, the fastening hole 331-1 for fixing the rail member 333 to the fixing frame 331 extends downward from the fixing frame 331 and has a closed lower end portion. Therefore, it is possible to prevent moisture from entering the space between the fixing frame 331 and the bottom cover 11 through the fastening hole 331-3.

Referring to FIG. 27, the fixing frame 331 is coupled to the bottom cover 11 by using a fastening member 337 (ie, a fixing member). Therefore, the opening 331-4 through which the fastening member 337 passes is formed in the fixing frame 331. The opening 331-4 passes through the fixing frame 331. The anti-friction component 336-2 disposed on the top surface 331-1 of the fixed frame 331 may cover the opening 331-4. Therefore, the anti-friction component 336-2 can act as a moisture blocking component that blocks moisture so as not to penetrate into the space between the fixed frame 331 and the bottom cover 11 through the opening 331-4, that is, a cover, a sealant, or moisture. Blocking agent.

When the foldable device 100 in the fully unfolded position of FIG. 2 starts to fold and the movable frame 332 starts to slide in the direction G1, the third portion 4c of the flexible display device 4 can be attributed to the flexible display device 4 The elasticity of the third part 4c moves a distance from the first body 1 and the second body 2, as shown in FIG. 28. That is, when both the first part 4a and the second part 4b of the flexible display device 4 are fixed ends, the third part 4c is bent downward, as marked by the dashed line, and does not separate from the first body 1 and the second body 1 and the second part. The body 2 moves. However, because the first part 4a is movable, the third part 4c moves from the first body 1 and the second body 2 (as marked by a solid line), thereby forming a gap. The bottom surface of the flexible display device 4 can be exposed through the gap, and foreign materials can penetrate into the foldable device 100 through the gap.

In order to solve this problem, the amount of the third part 4c of the flexible display device 4 detached from the first body 1 and the second body 2 can be changed by reducing the resistance when the flexible display device 4 is changed from the unfolded position to the folded position. The movement applied to the movable frame 332 is reduced.

FIG. 29 is a cross-sectional view of a foldable device 100 according to another exemplary embodiment. Referring to FIG. 29, the resistance member 338 applies resistance to the sliding movement of the movable frame 332 when the foldable display device 4 is changed from the unfolded position to the folded position. The resistance member 338 applies resistance to the movement of the movable frame 332 when the deployment angle E is greater than or equal to the movement restriction angle.

As the deployment angle E decreases, the radius of curvature of the curved portion 4d decreases, and therefore the force for deploying the flexible display device 4 increases. The force is applied to cause the movable frame 332 to slide in the direction G1. As the deployment angle E decreases, the resistance member 338 can apply higher resistance to the movement of the movable frame 332.

Although the resistance member 338 may be a compression coil spring supported by the first rail 332-1 and the side wall 331-2c of the recess 331-2, one or more exemplary embodiments are not limited thereto. The resistance member 338 may be one of the following: As a non-limiting example, a tension coil spring, a torsion coil spring, or a leaf spring, as long as it can apply resistance to the adjustable coil spring when the first body 1 and the second body 2 are unfolded. Just move the moving frame 332.

Since the amount of the third portion 4c of the flexible display device 4 that is bent when the foldable device 100 starts to be folded is extremely small, the magnitude of the elastic force generated by the curve of the third portion 4c is extremely small. The elastic force is used as a force for sliding the movable frame 332 in the direction G1. When the foldable device 100 starts to be folded, because the movable frame 332 does not move or hardly moves due to the resistance applied by the resistance member 338, the third part 4c does not move from the first body 1 and the second body 2 , As marked by the solid line in Figure 28, or reduce the movement. Therefore, the size of the gap can be reduced, and the formation of the gap can be prevented. As the deployment angle E decreases, the amount of bending of the third portion 4c increases, and therefore the magnitude of the elastic force increases. In this situation, the movable frame 332 slides in the direction G1 to elastically deform the resistance member 338, thereby increasing the resistance of the resistance member 338. The amount of the third part 4c detached from the first body 1 and the second body 2 can be reduced due to the resistance applied by the resistance member 338 to the movable frame 332, thereby reducing or preventing the gap. The elastic modulus of the resistance member 338 can be determined so that the third portion 4c is not excessively bent, and thus has the concave or convex shape 4f of FIG. 20.

The structure for connecting the movable frame 332 to the fixed frame 331 in a sliding manner is not limited to the exemplary structure described with reference to FIGS. 25 to 27.

」形狀的第二軌條335的軌條部件333a耦接至固定托架331-5。軌條部件333a可插入至例如固定托架331-5的「

」形狀部分331-5a中，且與所述「

」形狀部分嚙合。在此組態中，可移動框架332的第一軌條332-1可沿著第二軌條335在方向G1及G2上滑動。FIG. 30 is a cross-sectional view illustrating a structure for connecting the movable frame 331 to the fixed frame 331 in a sliding manner according to an exemplary embodiment. Referring to FIG. 30, the fixing bracket 331-5 is coupled to the recess 331-2 by the fastening member 334. The coupling hole 331-3 into which the fastening member 334 is inserted has a closed lower end portion. Formed with "

The rail member 333a of the second rail 335 in the shape of a ”is coupled to the fixing bracket 331-5. The rail member 333a can be inserted into, for example, the fixed bracket 331-5.

"In the shape part 331-5a, and the same as the "

"The shape is partially engaged. In this configuration, the first rail 332-1 of the movable frame 332 can slide along the second rail 335 in the directions G1 and G2.

FIG. 31 is a cross-sectional view illustrating a structure for connecting the movable frame 332 to the fixed frame 331 in a sliding manner in the width direction W according to another exemplary embodiment. The exemplary embodiment of FIG. 31 is similar to the exemplary embodiment of FIG. 30, except that there is no fixing bracket 331-5 and the rail member 333b is directly coupled into the recess 331-2.

FIG. 32 is a cross-sectional view illustrating a structure for connecting the movable frame 332 to the fixed frame 331 in a sliding manner according to another exemplary embodiment. In the exemplary embodiment of FIG. 32, the first rail 332-1 has a double P shape, and the second rail 335 along which the first rail 332-1 is guided is directly coupled to the fixed frame 331.

When the first body 1 and the second body 2 are folded (as shown in FIG. 28 ), the third part 4 c of the flexible display device 4 can be separated from the first body 1 and the second body 2. The gap formed due to the detachment can be reduced by using the resistance member 338. In addition, the foldable device 100 may further include a structure for closing the gap. The gap can be closed by covering the side of the third portion 4c of the flexible display device 4 in the width direction W.

FIG. 33 is a side view of the foldable device 100 fully deployed according to an exemplary embodiment. FIG. 34 is a side view of the foldable device 100 with a deployment angle E according to an exemplary embodiment. FIG. 35 is a side view of the folded foldable device 100 according to an exemplary embodiment.

Referring to FIGS. 33 to 35, the shielding member 350 (ie, the shield) is disposed on either side of the flexible display device 4 in the width direction W. The shielding member 350 crosses between the first body 1 and the second body 2. One end 351 of the shielding member 350 is pivotally coupled to any one of the first body 1 and the second body 2, and the other end 352 of the shielding member 350 is slidably connected to the first body 1 and the second body. The other of ontology 2. In an exemplary embodiment of the present invention, one end 351 of the shielding member 350 is pivotally coupled to the first body 1. A guide groove 360 (that is, a guide member) extending in the longitudinal direction L is formed in the second body 2. The insertion protrusion 353 inserted into the guide groove 360 is provided on the other end of the shield member 350.

When the foldable device 100 is changed from the fully expanded state (see FIG. 33) to the state with the expanded angle E (see FIG. 34), the first body 1 and the second body 2 are close to each other. Therefore, the shielding member 350 is guided by the guide groove 360 and slowly lifts up. Because the third portion 4c of the flexible display device 4 is slightly separated from the first body 1 and the second body 2, a gap can be formed between the first body 1 and the second body 2. Because the shielding member 350 covers the gap at one side of the third part 4c, the inside of the foldable device 100 is not exposed. In addition, it can prevent foreign materials from entering through the gap. When the foldable device 100 is changed to the fully expanded state, the shielding member 350 is stored in the first body 1 and the second body 2, as shown in FIG. 35. The length of the guide groove 360 is determined so that the first body 1 and the second body 2 are changed between the unfolded state and the folded state in consideration of the movement path of the insertion protrusion 353 of the shield member 350. In addition, the height H of the shield member 350 in the direction in which the shield member 350 is raised and the shape of the guide groove 360 can be determined so that the gap is closed at the expansion angle E.

The lifting amount of the shielding member 350 can be adjusted by adjusting the inclination angle of the guide groove 360 in the longitudinal direction L. For example, when the guide groove 360 is formed to be inclined upward with respect to the longitudinal direction L, the maximum height of the shielding member 350 may be greater than the maximum height when the guide groove 360 is formed in the longitudinal direction L. In contrast, when the guide groove 360 is formed to be inclined downward with respect to the longitudinal direction L, the maximum height of the shielding member 350 may be less than the maximum height when the guide groove 360 is formed in the longitudinal direction L.

In FIGS. 25 to 35, the first part 4 a of the flexible display device 4 slides relative to the first body 1 in the longitudinal direction L, and the second part 4 b is fixed to the second body 2. FIG. 36 is a partial cross-sectional view illustrating a foldable device 100 according to another exemplary embodiment. In FIG. 36, the dotted line indicates the folded state of the foldable device 100, and the solid line indicates the unfolded state of the foldable device 100. Referring to FIG. 36, when the foldable device 100 is unfolded, the edge 4a-1 of the first part 4a of the flexible display device 4 in the longitudinal direction L and the outer edge 1a of the first body 1 in the longitudinal direction L face Spaced within. When the foldable device 100 is folded, the first portion 4a of the flexible display device 4 slides in the longitudinal direction L toward the outer edge 1a of the first body 1, and the edge 4a-1 is adjacent to the outer edge 1a of the first body 1. And positioning. Therefore, when the foldable device 100 is folded, the portion 1 b of the first body 1 adjacent to the outer edge 1 a is covered by the first portion 4 a of the flexible display device 4. When the foldable device 100 is unfolded, the outer edge 4 a-1 of the flexible display device 4 slides down along the first body 1, and thus exposes the portion 1 b of the first body 1.

FIG. 37 is a perspective view of a foldable device 100 according to another exemplary embodiment. In FIG. 37, the flexible display device 4 is not shown. FIG. 38 is a cross-sectional view of a pen receiver 370 according to an exemplary embodiment. Referring to FIGS. 37 and 38, the foldable device 100 may further include a stylus 400 for operating the touch panel 42 (see FIG. 4) provided on the flexible display device 4. The stylus 400 can be stored in the first body 1 or the second body 2. According to one or more exemplary embodiments, the first part 4a of the flexible display device 4 is supported on the first body 1 in a sliding manner in the longitudinal direction L due to the structure of FIGS. 25 to 35. When the foldable device 100 changes between the folded state and the unfolded state, the portion 1b of the first body 1 is covered by the first portion 4a of the flexible display device 4 or exposed to the outside. The pen receiver 370 in which the stylus 400 is received is disposed in the part 1 b of the first body 1. For example, the pen receiver 370 may be a recess in the top surface 331-1 of the fixed frame 331.

In this configuration, since the foldable device 100 is changed between the unfolded state and the folded state, the pen receiver 370 can be opened/closed. When the foldable device 100 is folded, the pen receiver 370 is covered by the first portion 4a of the flexible display device 4, and when the foldable device 100 is unfolded, the first portion 4a of the flexible display device 4 is in the longitudinal direction L Slide up and open the pen receiver 370. Therefore, when the foldable device 100 is unfolded, the stylus 400 can be put into the pen receiver 370 or taken out from the pen receiver 370.

The foldable device 100 may further include a pen fixing unit (ie, a pen holder or a pen receiver) that fixes the stylus 400 to the pen receiver 370. For example, a toggle lever locking structure can be used, in which when the stylus 400 is received in the pen receiver 370 and pressed down by the user, the stylus 400 is locked in the pen receiver 370, and then moves down again. When the stylus 400 is pressed, the stylus 400 is unlocked.

39 and 40 are cross-sectional views of a pen fixing unit according to an exemplary embodiment. FIG. 39 illustrates a state in which the stylus pen 400 is unlocked, and FIG. 40 illustrates a state in which the stylus pen 400 is locked. FIG. 41 is a schematic diagram of a toggle lever locking structure according to an exemplary embodiment.

Referring to FIGS. 39 and 40, the height plate 371, the pair of lock arms 372 and the toggle spring 373 will be described. The height plate 371 is provided to move along the guide wall 374 of the pen receiver 370. The toggle spring 373 applies elastic force to the height plate 371 to raise the height plate 371. When the height plate 371 is raised, the locking arm 372 is guided by the guide wall 374, and therefore the distance between the locking arms 372 is increased or decreased, as shown in FIGS. 39 and 40. For example, the locking hook 372a used to lock the stylus 400 in the pen receiver 370 is provided on the first end of the locking arm 372, and the second end of the locking arm 372 is connected by a flexible part. 372b is connected to the height plate 371. In this configuration, when the height plate 371 is raised as shown in FIG. 39 and the distance between the locking arms 372 can be increased, the stylus 400 can be placed between the locking arms 372, and the arms 372 can be self-locking. Take it out between. Moreover, when the height plate 371 is lowered as shown in FIG. 40 and the height plate 371 is guided by the guide wall 374 and the distance between the height plate 371 and the locking arm 372 is reduced, the stylus 400 is captured by the locking hook 372a and locked to the pen In the receiver 371.

Referring to FIG. 41, the cam protrusion 371a is provided on the height plate 371. The cam path 375 that guides the cam protrusion 371 a is provided on the guide wall 374. The cam path 375 may include a first path 375a and a second path 375b. The cam protrusion 371a is guided along the first path when the height plate 371 is lowered, and the cam protrusion 371a is guided along the second path when the height plate 371 is raised. Guide cam protrusion 371a.

The first elastic arm 376 that locks the cam protrusion 371a at the lowered position is provided on the lower end portion of the first path 375a. The first elastic arm 376 has a position to close the first path 375a and a position to open the first path 375a. The second elastic arm 377 has a position separating the first path 375a and the second path 375b and a position connecting the first path 375a and the second path 375b.

In the state of FIG. 39, the first elastic arm 376 is in a position to close the first path 375a. Because the height plate 371 is lowered, the cam protrusion 371a is lowered along the first path 375a, and the first elastic arm 376 is pushed by the cam protrusion 371a and elastically bent to a position where the first path 375a is opened, as marked by the dotted line in FIG. 41 . When the height plate 371 reaches the lowered position of FIG. 40, the cam protrusion 371a leaves the hook 376a provided on the lower end portion of the first elastic arm 376 (as represented by 371a-1), and the first elastic arm 376 returns to The solid line marks the position close to the first path 375a. Therefore, even when elastic force is applied by the toggle spring 373 to raise the height plate 371, because the cam protrusion 371a is captured by the hook 376a, the height plate 371 is not raised along the first path 375a, and the height plate 371 is maintained In the position of Figure 40. The stylus 400 is locked in the pen receiver 370 by the locking hook 372a.

In the state of FIG. 40, when the stylus 400 is pressed, the height plate 371 is slightly lowered, and the second elastic arm 377 is pushed by the cam protrusion 371a to bend to a position connecting the first path 375a and the second path 375b, as shown in the figure 41 is marked by a dotted line, and the cam protrusion 371a enters the second path 375b, as indicated by 371a-2. When the interference with the cam protrusion 371a ends, the second elastic arm 377 returns to the position separating the first path 375a and the second path 375b, as marked by the solid line in FIG. 41. When the force for pressing the stylus 400 is removed in this state, the height plate 371 is lifted to the position of FIG. 39 due to the elastic force of the toggle spring 373, and the cam protrusion 371a is guided by the second path 375b. When the height plate 371 reaches the position of FIG. 39, the distance between the locking arms 372 increases, and the stylus 400 is unlocked.

In this configuration, the stylus 400 can be received in the first body 1 and removed from the first body 1. Since the pen receiver 370 is opened/closed by the flexible display device 4 when the foldable device 100 is unfolded/unfolded, an additional cover for opening/closing the pen receiver 370 is not necessary. When the foldable device 100 is folded, since the stylus 400 and the pen receiver 370 are not exposed to the outside, the freedom of designing the external appearance of the foldable device 100 can be improved.

In addition, the structure for receiving the stylus 400 is not limited to the structure of FIGS. 37 to 41. FIG. 42 is a partial perspective view of a foldable device 100 according to another exemplary embodiment. Referring to FIG. 42, the stylus 400 can be received in the pen receiver 370 or taken out from the pen receiver 370 through the pen insertion hole 380 in the width direction W. The toggle structure of FIGS. 39 to 41 may be used as a pen fixing unit for fixing the stylus 400 in the pen receiver 370. For example, FIGS. 43 and 44 are cross-sectional views illustrating a pen fixing unit according to an exemplary embodiment. FIG. 43 illustrates a state in which the stylus pen 40 is unlocked, and FIG. 44 illustrates a state in which the stylus pen 400 is locked. The difference between the pen fixing unit of FIGS. 43 and 44 and the pen fixing unit of FIGS. 39 and 40 is that the moving direction of the height plate 371 is the width direction W. In addition, the locking hook 372a provided on the locking arm 372 is inserted into the locking groove 401 formed in the stylus 400 at the position shown in FIG. 44 for locking the stylus 400 in the pen receiver 370. The toggle lever locking structure of FIG. 41 can be used as the toggle lever locking structure. In this situation, the first path 375a and the second path 375b can be formed in the width direction W.

In this configuration, the stylus 400 can be locked in the pen receiver 370 by being inserted through the pen insertion hole 380. The head 402 of the stylus 400 may not protrude from the side surface 1c of the first body 1 in the width direction W. In order to remove the stylus 400 from the pen receiver 370, the foldable device 100 can be unfolded to open the pen receiver 370, and push the stylus 370 in the width direction W to unlock the stylus 400. Next, the stylus 400 can be taken out through the pen insertion hole 380. In this configuration, because the head 402 of the stylus 400 does not protrude from the side surface 1c of the first body 1 in the width direction W when the stylus 400 is received in the pen receiver 370, the design can be improved The degree of freedom of the external appearance of the foldable device 100.

The structure for locking/unlocking the stylus 400 in the pen receiver 370 is not limited to the toggle lock structure. The pen fixing unit may have any structure that can lock the stylus 400 in the pen receiver 370, and can unlock the stylus 400 when necessary to remove the stylus 400 from the pen receiver 370. For example, the pen fixing unit may have a snap-fit structure for elastically locking the stylus 400 to the pen receiver 370/unlocking the stylus 400 and the pen receiver 370.

When the foldable device 100 changes from the unfolded position to the folded position, the third part 4c can be attributable to the elastic force of the flexible display device 4 moving from the first body 1 and the second body 2 (as marked by a solid line) To form a gap, the bottom surface of the flexible display device 4 can be exposed through the gap, or foreign materials can penetrate into the foldable device through the gap, as described above with reference to FIG. 28.

To solve this problem, the amount of the third portion 4c of the flexible display device 4 that moves from the first body 1 and the second body 2 can be reduced by restricting the amount of movement of the movable frame 332 according to the folding or unfolding angle. A restriction unit for restricting the amount of movement of the movable frame 332 according to a folding or unfolding angle according to an exemplary embodiment will now be explained.

FIG. 45 is a rear perspective view of a foldable device according to an exemplary embodiment. FIG. 45 corresponds to the rear perspective view of the foldable device 100 of FIG. 25, and the first bottom cover 11 and the second bottom cover 21 are omitted. Although not shown in FIG. 45, the movable frame 332 may be connected to the fixed frame 331 to slide in the longitudinal direction L by using any structure of, for example, FIG. 26, FIG. 30, FIG. 31, or FIG. Fig. 46 is an enlarged view illustrating part "AA" of Fig. 45; Fig. 47 is an enlarged view illustrating part "BB" of Fig. 45;

Referring to FIG. 45, because the first gear 35-1 and the second gear 35-2 mesh with each other, the first body 1 and the second body 2 can respectively surround the central axis 30-1 and in the directions P1 and P2 marked by the arrows. 30-2 rotates and can be changed from the unfolded state of FIG. 2 to the folded state of FIG. 3.

The restricting unit may include a first slider 510 supported on the fixed frame 331 to slide in the longitudinal direction L and connected to the movable frame 332, and having one end connected to the second body 2 (for example, the second frame 22) 521 and extend across the central axes 30-1 and 30-2 to the first connecting part 520 of the first body 1.

The first connecting member 520 may be, for example, a flexible wire. The first connecting member 520 extends over the pulleys 531 and 532 to the first body 1. When the foldable device is folded, the first connecting member 520 is partially wound around the pulleys 531 and 532, and the other end 522 of the first connecting member 520 is close to the central axis 30-1 and 30-2. The amount of movement of the movable frame 332 can be changed by using the amount of the first connecting member 520 wound around the pulleys 531 and 532 according to the folding or unfolding angle of the foldable device (that is, the other end of the first connecting member 520 The position of the portion 522 relative to the central axis 30-1 and 30-2 changes) to limit the sliding of the first sliding member 510 to an ideal position.

When the foldable device is folded, the movable frame 332 must slide away from the central axis 30-1 and 30-2. Therefore, it is necessary to move the first slider 510 in a direction opposite to the direction in which the other end 522 of the first connecting member 520 moves. For this purpose, a combination of rack and pinion can be used. Referring to FIGS. 45 and 46, the rack 540 is provided on the fixed frame 331 to slide in the longitudinal direction L. In addition, the pinion gear 550 is disposed on the fixed frame 331 to mesh with the rack gear 540. For example, the guide shaft 560 extending in the longitudinal direction L can be disposed on the fixed frame 331, and the rack 540 can be slidably supported on the guide shaft 560. The first rack part 511 meshing with the pinion gear 550 is disposed on the first sliding member 510. The other end 522 of the first connecting member 520 is connected to the rack 540.

In this configuration, when the foldable device is changed from the unfolded position to the folded position, the rack 540 moves toward the central axes 30-1 and 30-2 (that is, in the direction S1), and the first sliding member 510 returns This is because the first connecting member 520 moves in the direction S2 opposite to the direction S1. In contrast, when the foldable device changes from the folded position to the unfolded position, the rack 540 moves away from the central axes 30-1 and 30-2 (that is, in the direction S2), and the first sliding member 510 is due to The first connecting member 520 moves in the direction S1 opposite to the direction S2.

Reference numeral 570 is a return spring, which applies tension to the first connecting member 520 so that when the foldable device is unfolded and the first connecting member 520 is disengaged from the pulleys 531 and 532, the other end 522 moves in the direction S2. For example, the return spring 570 is connected to the rack 540 and applies an elastic force to make the rack 540 move in the direction S2.

Referring to FIG. 47, a restriction protrusion 332-4 protruding downward through a through hole 331-6 formed in the fixed frame 331 is provided on the movable frame 332. A restricting arm 512 connected to the restricting protrusion 332-4 and restricting the movement of the movable frame 332 is provided on the first slider 510. In an exemplary embodiment of the present invention, the restricting arm 512 is disposed outside the restricting protrusion 332-4, that is, farther from the central axis 30-1 and 30-2 than the restricting protrusion 332-4.

Fig. 48 is a schematic diagram for explaining the operation of the restriction unit. FIG. 49 is a schematic diagram for explaining a change in the amount of the first connecting member 520 wound around the pulleys 531 and 532 during the folding or unfolding procedure. Fig. 48(a) and Fig. 49(a) are each a state in which the first body 1 and the second body 2 are in the deployed position. The first connecting member 520 contacts the pulleys 531 and 532 and does not wrap around the pulleys 531 and 532. In this state, when the first body 1 and the second body 2 start to be folded, the first connecting member 520 starts to wrap around the pulleys 531 and 532. Fig. 48(b) and Fig. 49(b) are each in a state where the first body 1 and the second body 2 are folded at an angle of 90°. In this situation, the first connecting member 520 is wound around the pulleys 531 and 532 with a length of N1+N2, the rack 540 moves in the direction S1 with a length of N1+N2, and the first sliding member 510 is wound with a length of N1+N2. The length moves in the direction S2. When the first body 1 and the second body 2 reach the fully folded position, the first connecting member 520 is wound around the pulleys 531 and 532 with a length of N3+N4, as shown in 48(c) and Figure 49(c) As shown, the rack 540 moves in the direction S1 with a length of N3+N4, and the first slider 510 moves in the direction S2 with a length of N3+N4.

When the first body 1 and the second body 2 are changed from the folded position to the unfolded position, the first connecting member 520 is disengaged from the pulleys 531 and 532, and the rack 540 moves in the direction S2 due to the elastic force of the return spring 570, And the first sliding member 510 moves in the direction S2.

The amount of the movable frame 332 that moves in the direction S2 when the foldable device is folded is restricted by the restricting arm 512. That is, although the movable frame 332 moves in the direction S2 due to the elastic force of the flexible display device 4, the movable frame 332 is captured by the restricting arm 512, and thus restricts the movable frame moving in the direction S2 The amount of 332. In addition, when the foldable device is unfolded, the movable frame 332 moves in the direction S1 due to the elastic force of the flexible display device 4, and when the movement amount of the movable frame 332 is smaller than the movement amount of the restriction arm 512 , The restricting arm 512 pushes the restricting protrusion 332-4. Therefore, even when the foldable device is unfolded, the amount of the movable frame 332 that moves in the direction S1 can be restricted by the restricting arm 512.

Therefore, the third part 4c of the flexible display device 4 can not move from the first body 1 and the second body 2, and can be stably supported on the first body 1 and the second body 2, as indicated by the dotted line in FIG. 28 , Thereby minimizing the risk of forming gaps. Also, as shown in FIG. 24, when the first body 1 and the second body 2 are used at a position having a predetermined unfolding angle of, for example, 120° between the folded position and the unfolded position, the flexible display device 4 can be minimized The gap between the third part 4c and the first body 1 and the second body 2.

In addition, the difference in the folding or unfolding path between the flexible display device 4 and the first body 1 and the second body 2 during the folding or unfolding process can be compensated to reduce the compressive force or the compression force applied to the flexible display device 4 The tension can be reduced, and the possibility that the third portion 4c of the flexible display device 4 is bent inward or outward to have the concave or convex shape 4f of FIG. 20.

Although two pulleys 531 and 532 are used in the above exemplary embodiment, one pulley may be used or three or more pulleys may be used. Also, although the rack 540 and the first slider 510 move in opposite directions at a ratio of 1:1 in the above exemplary embodiment, the movement between the rack 540 and the first slider 510 can be changed as needed ratio. FIG. 50 is a schematic diagram of a structure for adjusting the movement ratio between the rack 540 and the first slider 510 according to an exemplary embodiment. Referring to FIG. 50, three pinions 551, 552 and 553 are disposed between the rack 540 and the first rack portion 511 of the first slider 510. At least one of the pinion gears 551, 552, and 553 is a transmission gear for deceleration or acceleration. For example, the pinion gear 551 is the reduction gear in FIG. 50. Therefore, the movement amount of the first slider 510 may be smaller than the movement amount of the rack 540. Although it is difficult to sufficiently increase the amount of the first connecting member 520 wound around the pulleys 531 and 532, the first sliding member 510 can be moved by a desired amount by using a speed-increasing gear.

The amount of movement of the movable frame 332 according to the folding or unfolding angle between the first body 1 and the second body 2 can be controlled by using the shape of the pulleys 531 and 532. Therefore, the movable frame 332 can be moved to minimize the risk of forming a gap. For example, when the pulleys 531 and 532 have a circular shape, the movable frame 332 linearly moves according to the folding or unfolding angle. The movable frame 332 can move non-linearly according to the folding or unfolding angle by changing the shape of the pulleys 531 and 532. The structure for moving the movable frame 332 non-linearly is illustrated in FIG. 51. Referring to FIG. 51, the pulleys 531a and 532a having a non-circular shape and rotating around the central axis 30-1 and 30-2 together with the first body 1 and the second body 2 are illustrated. The distance between the contact points of the pulleys 531a and 532a and the first connecting member 520 from the central axis 30-1 and 30-2 varies according to the rotation angle of the pulleys 531a and 532a.

FIG. 52 is a graph illustrating the distance of the movable frame 332 according to the folding or unfolding angle between the first body 1 and the second body 2 according to an exemplary embodiment. In FIG. 52, C1 represents the moving distance of the movable frame 332 according to the folding or unfolding angle for minimizing the gap. C2 represents the moving distance of the movable frame 332 according to the folding or unfolding angle when the pulleys 531 and 532 having a circular shape are used. C3 represents the moving distance of the movable frame 332 according to the folding or unfolding angle when the pulleys 531a and 531b of FIG. 51 having a non-circular shape are used. C4 represents the difference between the moving distances C1 and C2. C5 represents the difference between the moving distances C1 and C3. Referring to FIG. 52, the difference between the moving distance C3 and the desired moving distance of the movable frame 332 is extremely small, and therefore the risk of forming a gap may be less than the risk of forming a gap under the condition of the moving distance C2. Therefore, the amount of movement of the movable frame 332 according to the folding or unfolding angle may be restricted to minimize the risk of forming a gap by changing the shape of the pulley that unfastens the first connecting member 520.

Although a flexible wire is used as the first connection member 520 in the above exemplary embodiment, the first connection member 520 is not limited thereto. The first connecting member 520 may have bending elasticity. Therefore, when the first body 1 and the second body 2 are unfolded and the first connecting member 520 is disengaged from the pulleys 531 and 532, the first connecting member 520 can be attributed to the elastic force of the first connecting member 520 in the direction S2 Push the rack 540. Therefore, the return spring 570 may be omitted.

Referring back to FIG. 24, the first body 1 and the second body 2 respectively include a first receiver 122 and a second receiver 222. As described above with reference to FIGS. 19A and 19B, when the first body 1 and the second body 2 are in the folded position, the first receiver 122 and the second receiver 222 can be in the first position retracted from the flexible display device 4. Position so as to receive the curved portion 4d of the flexible display device 4, and when the first body 1 and the second body 2 are in the unfolded position, the first receiver 122 and the second receiver 222 can be positioned to support the flexible display device 4 The second position of the third part 4c. The first receiver 122 and the second receiver 222 may be disposed on the first and second frames 12 and 22 to pivot around the hinges 123 and 223 between the first position and the second position.

The first receiver 122 and the second receiver 222 can be maintained in the second position until the receiving start position, and when the first body 1 and the second body 2 start to expand beyond the receiving start position, the first receiver 122 and the second receiver 122 The receiver 222 can be changed to the first position. As described above, the first body 1 and the second body 2 can be used by being locked at a position (for example, an inclined position) having an unfolded angle E between the unfolded position and the folded position. In order to stably support the flexible display device 4 at the inclined position, the first receiver 122 and the second receiver 222 can be maintained in the second position until the first body 1 and the second body 2 reach the inclined position from the unfolded position until. Therefore, the acceptance start angle may be equal to or smaller than the angle corresponding to the inclined position. Since the foldable device is rarely used at a deployment angle of less than 90°, the first receiver 122 and the second receiver 222 can be maintained in the second position when the deployment angle ranges from about 180° to about 90° .

The foldable device may further include a support unit that maintains the first receiver 122 and the second receiver 222 in the second position until the first body 1 and the second body 2 reach an angle corresponding to the start of receiving from the unfolded position The first receiver 122 and the second receiver 222 are allowed to move to the first position when the first body 1 and the second body 2 are folded beyond the receiving start position.

FIG. 53 is a perspective view of a supporting unit according to an exemplary embodiment. FIG. 53 corresponds to the rear perspective view of FIG. 24. In FIG. 53, the first bottom cover 11 and the second bottom cover 21 are omitted. The structure of the support unit for moving the first receiver 122 between the first position and the second position may be applied to the second receiver 222, and therefore, only the support unit for the first receiver 122 will now be explained.

Referring to FIG. 53, the supporting unit may include a second slider 610 that is supported on the first frame 12 to slide in the longitudinal direction L, and a second connecting member 620 that is connected to the second body 2 (For example, the second frame 22) has one end 621 and extends across the central axes 30-1 and 30-2 to the first body 1 so as to be connected to the second sliding member 610. The rotating cam 650 is connected to the second slider 610 and rotates with the movement of the second slider 610.

The second connecting member 620 may be, for example, a flexible wire. The second connecting member 620 extends over the pulleys 533 and 534 to the first body 1. When the foldable device is folded, the second connecting member 620 is partially wrapped around the pulleys 533 and 534, and the other end 622 of the second connecting member 620 is close to the central axis 30-1 and 30-2. The amount of the second connecting member 620 wound around the pulleys 533 and 534 can be changed according to the folding or unfolding operation of the foldable device (that is, the position of the other end 622 relative to the central axis 30-1 and 30 -2) to move the second slider 610.

The return spring 660 exerts an elastic force to make the second sliding member 610 move away from the central axis 30-1 and 30-2 when the foldable device is unfolded and the second connecting member 620 is disengaged from the pulleys 533 and 534.

In this configuration, when the foldable device is changed from the unfolded position to the folded position, the second sliding member 610 is due to the movement of the second connecting member 620 to the central axes 30-1 and 30-2. In contrast, when the foldable device is changed from the folded position to the unfolded position, the second slider 610 moves away from the central axis 30-1 and 30-2 due to the elastic force of the return spring 660.

For example, the guide shaft 640 extending in the longitudinal direction L may be disposed on the first frame 12, and the second sliding member 610 may be slidably supported on the guide shaft 640. The second sliding member 610 includes a second rack position 611. The pinion gear 630 meshing with the second rack portion 611 is provided on the first frame 12.

The rotating cam 650 is rotatably disposed on the first frame 12. The rotating cam 650 is connected to the pinion gear 630. Therefore, the rotating cam 650 may rotate with the movement of the second slider 610. The first receiver 122 may be pivotally connected to the fixing frame 331 by using a hinge 123. The first receiver 122 is supported on a rotating cam 650 located under the first receiver 122.

FIG. 54 is a side view of a rotating cam 650 according to an exemplary embodiment. Referring to FIG. 54, the rotating cam 650 includes a first cam track 652 with a constant distance from the rotation center 651 and a second cam track 653 with a reduced distance from the rotation center 651. When the first receiver 122 is supported by the first cam track 652, the first receiver 122 is maintained at the second position. When the contact between the first receiver 122 and the first cam track 652 ends, the second cam track 653 supports the first receiver 122 and makes it pivot to the first position.

55A, 55B, and 55C are each a schematic diagram for explaining the operation of the supporting unit. FIG. 55A illustrates the state in which the first body 1 and the second body 2 are in the deployed position. The first receiver 122 is supported by the first cam track 652 and maintained at the supporting position.

When the first body 1 and the second body 2 start to be folded from the state of FIG. 55A, the second connecting member 620 starts to wrap around the pulleys 533 and 534. Next, the second slider 610 slides toward the central axis 30-1, and the rotating cam 650 rotates. Because the first receiver 122 is guided by the first cam track 652 until the first body 1 and the second body 2 reach the receiving start position (as shown in FIG. 55B), the first receiver 122 is maintained at the second position.

When the first body 1 and the second body 2 are folded beyond the receiving start position, the contact between the first cam track 652 and the first receiver 122 ends, and the first receiver 122 is supported by the second cam track 653. Next, the first receiver 122 pivots away from the rear surface of the flexible display device 4 due to its weight, and a receiving space begins to be formed in the first body 1 and the second body 2. The third portion 4c of the flexible display device 4 is gently curved and begins to be placed in the receiving space.

When the first body 1 and the second body 2 reach the folded position (as shown in FIG. 55C), the first receiver 122 reaches the first position, and the receiving space is formed in the first body 1 and the second body 2, such as Shown in Figure 3. The curved portion 4d is formed on the third portion 4c of the flexible display device 4 and is arranged in the receiving space. In the folded state, the first part 4a and the second part 4b of the flexible display device 4 face each other so as to be arranged close to each other, and the third part 4c is bent from the first part 4a and the second part 4b to the first body 1 and The second body 2 has a water drop shape and is arranged in the receiving space. Therefore, the foldable device may be extremely compact when in the folded state.

The return spring 660 is connected to the second slider 610 and applies tension to the second connecting member 620 having a wire shape. Therefore, when the first body 1 and the second body 2 are unfolded, the second sliding member 610 slides with the second sliding member 610 when the first body 1 and the second body 2 are folded due to the elastic force of the return spring 660. Slides in the opposite direction, and the rotating cam 650 also rotates in the opposite direction. Therefore, the first receiver 122 returns from the first position to the second position.

The second connecting member 620 may have bending elasticity. In this situation, when the first body 1 and the second body 2 are unfolded and the second connecting member 620 is unwound, the second connecting member 620 is due to the elastic force to be in contact with the second connecting member 620 in the first body 1 and The second sliding member 610 is pushed in a direction opposite to the pulling direction when the second body 2 is folded. Therefore, the return spring 660 can be omitted.

The rotating cam 650 according to the folding or unfolding angle between the first body 1 and the second body 2 can be appropriately adjusted by placing one or more speed changing gears between the second rack portion 611 and the pinion gear 630 The amount of rotation.

The restriction unit and the support unit can be realized by using a motor. FIG. 56 is a block diagram illustrating an example in which the restricting unit and the supporting unit are realized by using a motor. Referring to FIG. 56, the folding or unfolding detector 701 is illustrated. The folding or unfolding detector 701 detects the folding or unfolding angle between the first body 1 and the second body 2.

When the flexible display device 4 is folded, a tensile stress is applied to the rear surface of the flexible display device 4 and a compressive stress is applied to the front surface of the flexible display device 4. Due to these stresses, the length of the flexible display device 4 slightly changes. A strain gauge that detects a slight change in the length of the flexible display device 4 can be used as the folding or unfolding detector 701. The strain gauge may be placed on or adjacent to the third portion 4c of the flexible display device 4, the curvature of the third portion 4c greatly changing during folding or unfolding. The resistance value of the strain gauge changes according to the stress. For example, the resistance value of the strain gauge increases when the foldable device is folded, and decreases when the foldable device is unfolded. That is, the resistance value of the strain gauge is inversely proportional to the folding or unfolding angle of the foldable device. The controller 8 can detect the folding operation or the unfolding operation based on whether the resistance value of the strain gauge increases or decreases. For example, the controller 8 may determine that the folding operation starts when the resistance value decreases to less than the first resistance value, and may determine that the unfolding operation ends when the resistance value continues to decrease below the second resistance value. In contrast, the controller 8 can determine that the folding operation starts when the resistance value increases to be greater than the second resistance value, and can determine that the folding operation ends when the resistance value continues to increase to be greater than the first resistance value. In addition, the expansion angle between the first body 1 and the second body 2 can be detected from the resistance value of the strain gauge.

The optical sensor that directly detects the rotation angle of the first body 1 and the second body 2 with respect to the first central axis 30-1 and the second central axis 30-2 by using the light detection method can be used for folding or unfolding Detector 701.

The controller 8 generates a first driving signal including the movement amount and the movement direction of the first slider 510 based on the detection signal of the folding or unfolding detector 701. The controller 8 may control the first driving motor 711 to move the first slider 510 based on the first driving signal. For example, the first connecting member 520, the rack 540, and the return spring 570 in FIG. 45 can be omitted, and the first driving motor 711 can directly rotate the pinion gear 550. Therefore, a restriction unit for restricting the amount of movement of the movable frame 332 according to the folding or unfolding angle between the first body 1 and the second body 2 can be realized.

The controller 8 generates a second driving signal including the rotation amount and the rotation direction of the rotating cam 650 based on the detection signal of the folding or unfolding detector 701. The controller 8 may control the second driving motor 712 to rotate the rotating cam 650 based on the second driving signal. For example, the second connecting member 620, the second sliding member 610, and the return spring 660 in FIG. 53 can be omitted, and the second driving motor 712 can directly rotate the pinion gear 630 or the rotation cam 650. Therefore, a support unit for selectively changing the first receiver 122 and the second receiver 222 to the first position or the second position according to the folding or unfolding angle between the first body 1 and the second body 2 can be realized .

Although one or more exemplary embodiments have been described with reference to the figures, those who are generally familiar with the art will understand that the form and details can be carried out without departing from the spirit and scope defined by the scope of the following patent applications. Various changes. Therefore, the true technical scope of the concept of the present invention is defined by the scope of the attached patent application and its equivalents.

」形狀部分 331-6‧‧‧通孔 332‧‧‧可移動框架 332-1‧‧‧第一軌條 332-1a‧‧‧第一突起 332-1b‧‧‧第二突起 332-3‧‧‧端部 332-4‧‧‧限制突起 333‧‧‧軌條部件 333a‧‧‧軌條部件 333b‧‧‧軌條部件 333-1‧‧‧第一表面 333-2‧‧‧第二表面 334‧‧‧緊固部件 335‧‧‧第二軌條 336-1‧‧‧減摩部件 336-2‧‧‧減摩部件 337‧‧‧緊固部件 338‧‧‧阻力部件 350‧‧‧屏蔽部件 351‧‧‧端部 352‧‧‧端部 353‧‧‧插入突起 360‧‧‧導引槽 370‧‧‧筆接收器 371‧‧‧高度板 371a‧‧‧凸輪突起 371a-1‧‧‧下端部分 371a-2‧‧‧凸輪突起371a進入第二路徑375b 372‧‧‧鎖定臂 372a‧‧‧鎖定鉤 372b‧‧‧可撓性連接部分 373‧‧‧肘節彈簧 374‧‧‧導引壁 375‧‧‧凸輪路徑 375a‧‧‧第一路徑 375b‧‧‧第二路徑 376‧‧‧第一彈性臂 376a‧‧‧鉤 377‧‧‧第二彈性臂 400‧‧‧觸控筆 401‧‧‧鎖定凹槽 402‧‧‧頭部 510‧‧‧第一滑件 511‧‧‧第一齒條部分 512‧‧‧限制臂 520‧‧‧第一連接部件 521‧‧‧端部 522‧‧‧端部 531‧‧‧滑輪 531a‧‧‧滑輪 531b‧‧‧滑輪 532‧‧‧滑輪 532a‧‧‧滑輪 533‧‧‧滑輪 534‧‧‧滑輪 540‧‧‧齒條 550‧‧‧小齒輪 551‧‧‧小齒輪 552‧‧‧小齒輪 553‧‧‧小齒輪 560‧‧‧導引軸桿 570‧‧‧回復彈簧 610‧‧‧第二滑件 611‧‧‧第二齒條位置 620‧‧‧第二連接部件 621‧‧‧端部 622‧‧‧端部 630‧‧‧小齒輪 640‧‧‧導引軸桿 650‧‧‧旋轉凸輪 651‧‧‧旋轉中心 652‧‧‧第一凸輪軌道 653‧‧‧第二凸輪軌道 660‧‧‧回復彈簧 701‧‧‧摺疊或展開偵測器 711‧‧‧第一驅動馬達 712‧‧‧第二驅動馬達 A‧‧‧部分 C1‧‧‧移動距離 C2‧‧‧移動距離 C3‧‧‧移動距離 C4‧‧‧移動距離C1及C2之間的差 C5‧‧‧移動距離C1及C3之間的差 D1‧‧‧角度 D2‧‧‧角度 E‧‧‧展開角度 G1‧‧‧方向 G2‧‧‧方向 L‧‧‧縱向方向 L1‧‧‧線 L2‧‧‧線 P1‧‧‧方向 P2‧‧‧方向 S‧‧‧螺釘 S1‧‧‧方向 S2‧‧‧方向 W‧‧‧寬度方向1‧‧‧First body 1a‧‧‧Outer edge 1b‧‧‧Part 2‧‧‧Second body 3‧‧‧Connecting unit 4‧‧‧Flexible display device 4a‧‧‧First part 4a-1‧ ‧‧Edge 4b‧‧‧Second part 4c‧‧‧Third part 4d‧‧‧Curved part 4e‧‧‧Elevation difference 4f‧‧‧Concave or convex shape 4-1‧‧‧Signal line 5‧‧‧Cover Cover part 7‧‧‧Removable support part 8‧‧‧Controller 9‧‧‧Battery 11‧‧‧First bottom cover 12‧‧‧First frame 12a‧‧‧Side wall 13‧‧‧Opposite edge 21‧ ‧‧Second bottom cover 22‧‧‧Second frame 22a‧‧‧Side wall 23‧‧‧Opposing edge 30-1‧‧‧Central axis/first central axis 30-2‧‧‧Central axis/second center Axis 31‧‧‧Connecting bracket 32-1‧‧‧First connection hole 32-2‧‧‧First connection hole 33-1‧‧‧Second connection hole 33-2‧‧‧Second connection hole 34- 1‧‧‧Hinge part 34-2‧‧‧Hinge part 34a‧‧‧Insertion part 34b‧‧‧Ladder part 34c‧‧‧Screw hole 35-1‧‧‧First gear 35-2‧‧‧Second Gear 41‧‧‧Flexible display panel 42‧‧‧Touch panel 43‧‧‧Transparent protection panel 51‧‧‧Extension 52‧‧‧Sidewall 53‧‧‧Concave 61‧‧‧Flexible arm 61-1‧ ‧‧First contact part 61-2‧‧‧Second contact part 61-3‧‧‧Border part 61'‧‧‧First elastic arm 61''‧‧‧Elastic arm 61-1''‧‧‧Second One contact part 61-2``‧‧‧Second contact part 61-3''‧‧‧Border part 62‧‧‧Opposite arm 62a‧‧‧Opposite part 62-1‧‧‧First opposite part 62-2‧‧‧Second opposite part 62-3‧‧‧Border part 62'‧‧‧Second elastic arm 62``‧‧‧Opposite arm 62-1''‧‧‧First opposite part 62-2``‧‧‧Second opposite part 62-3''‧‧‧Border part 71‧‧‧Movable support 72‧‧‧ Groove 73-1‧‧‧Guiding part 73-2‧‧ ‧Guiding part 74-1‧‧‧Rib 74-2‧‧‧Rib 81‧‧‧First pivot lever 82‧‧‧Second pivot lever 83‧‧‧stop 84‧‧ ‧ Stop 91‧‧‧Magnetic component 91a‧‧‧Magnet 91b‧‧‧Magnetic shielding component 91a-1‧‧‧Surface 92‧‧‧Attaching component 100‧‧‧Foldable device 121‧‧‧First Support 122‧‧‧First receiver 123‧‧‧Hinge 124‧‧‧Distal part 221‧‧‧Second support 222‧‧‧Second receiver 223‧‧‧Hinge 224‧‧‧Distal part 225‧‧‧Slot 311‧‧‧Fixed frame 312‧‧‧Movable frame 313‧‧‧Second rail 314‧‧‧First rail 321‧‧Fixed frame 322‧‧‧Movable frame 323‧‧ ‧Second rail 324‧‧‧First rail 3 31‧‧‧Fixed frame 331-1‧‧‧Top surface 331-2‧‧‧Concavity 331-2a‧‧‧Side surface 331-2b‧‧‧Bottom surface 331-2c‧‧‧Side wall 331-3‧‧‧ Fastening hole 331-4‧‧‧Opening 331-5‧‧‧Fixing bracket 331-5a‧‧‧「

」Shaped part 331-6‧‧‧Through hole 332‧‧‧Movable frame 332-1‧‧‧First rail 332-1a‧‧‧First protrusion 332-1b‧‧‧Second protrusion 332-3‧ ‧‧End 332-4‧‧‧Limiting protrusion 333‧‧‧ Rail part 333a‧‧‧ Rail part 333b‧‧‧ Rail part 333-1‧‧‧First surface 333-2‧‧‧Second Surface 334‧‧‧fastening part 335‧‧‧second rail 336-1‧‧‧anti-friction part 336-2‧‧‧anti-friction part 337‧‧‧fastening part 338‧‧‧resistance part 350‧‧ ‧Shielding member 351‧‧‧End 352‧‧‧End 353‧‧‧Insert projection 360‧‧‧Guide groove 370‧‧‧Pen receiver 371‧‧‧Height plate 371a‧‧‧Cam protrusion 371a-1 ‧‧‧Lower end portion 371a-2‧‧‧Cam protrusion 371a enters the second path 375b 372‧‧‧Lock arm 372a‧‧‧Lock hook 372b‧‧‧Flexible connecting part 373‧‧‧Toggle spring 374‧‧ ‧Guide wall 375‧‧‧Cam path 375a‧‧‧First path 375b‧‧‧Second path 376‧‧‧First elastic arm 376a‧‧‧Hook 377‧‧‧Second elastic arm 400‧‧‧Touch Pen 401‧‧‧Locking groove 402‧‧‧Head 510‧‧‧First sliding part 511‧‧‧First rack part 512‧‧‧Limiting arm 520‧‧‧First connecting part 521‧‧‧ End 522‧‧‧End 531‧‧‧Pulley 531a‧‧‧Pulley 531b‧‧‧Pulley 532‧‧‧Pulley 532a‧‧‧Pulley 533‧‧‧Pulley 534‧‧‧Pulley 540‧‧‧Rack 550 ‧‧‧Pinion gear 551‧‧‧Pinion gear 552‧‧‧Pinion gear 553‧‧‧Pinion gear 560‧‧‧Guide shaft 570‧‧‧Return spring 610‧‧‧Second sliding piece 611‧‧‧ Two rack position 620‧‧‧second connecting part 621‧‧‧end 622‧‧‧end 630‧‧‧pinion 640‧‧‧guide shaft 650‧‧‧rotating cam 651‧‧‧rotation center 652‧‧‧First cam track 653‧‧‧Second cam track 660‧‧‧Return spring 701‧‧‧Folding or unfolding detector 711‧‧‧First drive motor 712‧‧‧Second drive motor A‧ ‧‧Part C1‧‧‧Moving distance C2‧‧‧Moving distance C3‧‧‧Moving distance C4‧‧‧Difference between movement distance C1 and C2 C5‧‧‧Difference between movement distance C1 and C3 D1‧‧ ‧Angle D2‧‧‧Angle E‧‧‧Expansion angle G1‧‧‧Direction G2‧‧‧Direction L‧‧‧Vertical direction L1‧‧‧Line L2‧‧‧Line P1‧‧‧Direction P2‧‧‧Direction S ‧‧‧Screw S1‧‧‧Direction S2‧‧‧Direction W‧‧‧Width direction

These and/or other aspects will be apparent and easier to understand from the following description of one or more exemplary embodiments, which is made in conjunction with the accompanying drawings. Fig. 1 is a perspective view of a foldable device according to an exemplary embodiment. FIG. 2 is a side view illustrating the foldable device of FIG. 1 in an unfolded state according to an exemplary embodiment. FIG. 3 is a side view illustrating a folded state of the foldable device of FIG. 1 according to an exemplary embodiment. FIG. 4 is a cross-sectional view of a flexible display according to an exemplary embodiment. Fig. 5 is an exploded perspective view of a foldable device according to an exemplary embodiment. FIG. 6 is a detailed view of part "A" of FIG. 5 according to an exemplary embodiment. FIG. 7 is a cross-sectional view taken along line BB′ of FIG. 6 according to an exemplary embodiment. FIG. 8A is a side view of a modified connection structure for foldably connecting the first and second bodies according to an exemplary embodiment. Fig. 8B is a side view illustrating the first and second bodies misaligned with each other in an expanded state according to the base. Fig. 9 is a perspective view of the foldable device in a slightly folded state and unfolded position according to an exemplary embodiment. FIG. 10 is a cross-sectional view taken on line CC′ of FIG. 5 according to an exemplary embodiment. Fig. 11 is a perspective view of a foldable device in a partially folded state according to an exemplary embodiment. Figure 12A is a cross-sectional view of a foldable device in a folded position in a folded state according to an exemplary embodiment. Figure 12B is a cross-sectional view of the foldable device in an initial expanded state according to an exemplary embodiment. Figure 12C is a cross-sectional view of the foldable device in a partially folded state according to an exemplary embodiment. Figure 12D is a cross-sectional view of the foldable device in an expanded state according to an exemplary embodiment. FIG. 13 is a cross-sectional view of an elastic unit according to another exemplary embodiment. Fig. 14 is a cross-sectional view of an elastic unit according to another exemplary embodiment. FIG. 15 is a cross-sectional view of an elastic unit according to another exemplary embodiment. Fig. 16A is a cross-sectional view of an initial unfolded state of a foldable device according to an exemplary embodiment. FIG. 16B is a cross-sectional view of a partially expanded state of the foldable device according to an exemplary embodiment. Figure 16C is a cross-sectional view of the foldable device in a folded state according to an exemplary embodiment. FIG. 17 is an exploded perspective view illustrating a movable support member between a support position and a retreat position according to an exemplary embodiment. FIG. 18A is a cross-sectional view taken along the line FF′ of FIG. 17 illustrating the movable support member in the supporting position according to an exemplary embodiment. FIG. 18B is a cross-sectional view illustrating the movable support member in a retracted position according to an exemplary embodiment, taken along the line FF′ of FIG. 17. FIG. 19A is a side view of the foldable device in a folded position in a folded state according to an exemplary embodiment. Figure 19B is a side view of the foldable device in a deployed position in a deployed state according to an exemplary embodiment. FIG. 20 is a side view of a foldable device according to another exemplary embodiment. FIG. 21 is a cross-sectional view taken along line H-H′ of FIG. 20 according to an exemplary embodiment. Fig. 22 is a side view of a foldable device according to another exemplary embodiment. FIG. 23 is a cross-sectional view of a magnetic component according to an exemplary embodiment. Fig. 24 is a side view of a foldable device according to another exemplary embodiment. FIG. 25 is a perspective view of a foldable device according to another exemplary embodiment. FIG. 26 is a cross-sectional view taken along line J-J' of FIG. 25 according to an exemplary embodiment. FIG. 27 is a cross-sectional view taken along line K-K′ of FIG. 25 according to an exemplary embodiment. FIG. 28 is a side view illustrating a gap between the third part of the flexible display and the foldable device when the foldable device is folded according to an exemplary embodiment. Figure 29 is a cross-sectional view of a foldable device according to another exemplary embodiment. 30 is a cross-sectional view of a structure for connecting a movable frame to a fixed frame in a sliding manner according to an exemplary embodiment. FIG. 31 is a cross-sectional view of a structure for connecting a movable frame to a fixed frame in a sliding manner according to another exemplary embodiment. 32 is a cross-sectional view of a structure for connecting a movable frame to a fixed frame in a sliding manner according to another exemplary embodiment. Figure 33 is a side view of a foldable device in an unfolded state according to an exemplary embodiment. Figure 34 is a side view of a foldable device at a predetermined deployment angle according to an exemplary embodiment. Figure 35 is a side view of a foldable device in a folded state according to an exemplary embodiment. Figure 36 is a partial cross-sectional view of a foldable device according to another exemplary embodiment. FIG. 37 is a perspective view of a foldable device according to another exemplary embodiment. FIG. 38 is a cross-sectional view of a pen receiver according to an exemplary embodiment. FIG. 39 is a cross-sectional view of the pen fixing unit in an unlocked state according to an exemplary embodiment. FIG. 40 is a cross-sectional view of the pen fixing unit in a locked state according to an exemplary embodiment. FIG. 41 is a schematic diagram of a toggle lever locking structure according to an exemplary embodiment. FIG. 42 is a partial perspective view of a foldable device according to another exemplary embodiment. FIG. 43 is a cross-sectional view of the pen holder in an unlocked state according to an exemplary embodiment. FIG. 44 is a cross-sectional view of the pen holder in a locked state according to an exemplary embodiment. FIG. 45 is a rear perspective view of a foldable device according to an exemplary embodiment. FIG. 46 is an enlarged view of part "AA" of FIG. 45. FIG. Fig. 47 is an enlarged view of part "BB" of Fig. 45; Fig. 48 is a schematic diagram for explaining the operation of the restriction unit. FIG. 49 is a schematic diagram for explaining the change in the amount of the first connecting member wound around the pulley during the folding or unfolding procedure. FIG. 50 is a schematic diagram of a structure for adjusting the movement ratio between the rack and the first slider according to an exemplary embodiment. FIG. 51 is a view of a structure for moving a movable frame non-linearly according to an exemplary embodiment. FIG. 52 is a graph illustrating the moving distance of the movable frame according to the folding or unfolding angle between the first and second bodies according to an exemplary embodiment. FIG. 53 is a perspective view of a supporting unit according to an exemplary embodiment. Fig. 54 is a side view of a rotating cam according to an exemplary embodiment. 55A, 55B, and 55C are schematic diagrams for explaining the operation of the supporting unit. FIG. 56 is a block diagram for explaining an example in which a restricting unit and a supporting unit are realized by using a motor according to an exemplary embodiment.

1‧‧‧The first body

2‧‧‧Second Body

4‧‧‧Flexible display device

4a‧‧‧Part One

4b‧‧‧Part Two

4c‧‧‧Part Three

5‧‧‧Cover parts

100‧‧‧Foldable device

Claims (15)

A foldable device includes: a flexible display, including a first part, a second part, and a third part arranged between the first part and the second part; a first body for supporting the flexible display The first part of the flexible display; a second body for supporting the second part of the flexible display; and a hinge rotatably connected to the first body and the second body to make The flexible display is bent, wherein when the flexible display is folded and unfolded, the first part slides on the first body, wherein the first body includes a fixed frame and a movable frame, the The first part of the flexible display is fixedly attached to the movable frame and is configured to move relative to the fixed frame. The foldable device according to claim 1, wherein the movable frame includes a first rail, wherein the fixed frame includes a second rail, and the second rail is coupled to the first rail. A rail and configured to support the first rail of the movable frame. According to the foldable device described in item 2 of the scope of patent application, the second rail extends in the sliding direction of the movable frame. The foldable device according to the third item of the scope of patent application, wherein the fixed frame includes a recess that is recessed downward from the top surface of the fixed frame and in the sliding direction of the movable frame Extend, and wherein the first rail protrudes toward the lower side of the movable frame to be inserted into the recess and slide. The foldable device described in item 4 of the scope of the patent application further includes a rail member, wherein the rail member is coupled to the recess to form the second rail. The foldable device according to claim 5, wherein the rail member includes a first surface and a second surface facing the side surface and the bottom surface of the recess, respectively. According to the foldable device described in claim 6, wherein the first rail includes a first protrusion and a second protrusion, the first protrusion extends downward, and the second protrusion extends from The first protrusion extends, and wherein the first protrusion is slidably inserted between the second surface of the rail member and the bottom surface of the recess. The foldable device according to claim 4, wherein the first rail slides between one end of the recess and the other end of the recess, and wherein when the flexible display is folded , The first rail slides and contacts the one end of the recess to stop sliding. The foldable device according to claim 4, wherein the first rail slides between one end of the concave portion and the other end of the concave portion, and wherein the foldable device further includes resistance The resistance member is connected to the one end of the recess and applies a force to the movable frame in a direction opposite to the sliding direction of the first part when the flexible display is folded. The foldable device as described in item 1 of the scope of the patent application further includes a device disposed between the fixed frame and the movable frame and configured to reduce the gap between the movable frame and the fixed frame. Anti-friction parts of the friction. The foldable device as described in item 10 of the scope of the patent application, wherein the The anti-friction component includes a film and is arranged on the fixed frame. The foldable device according to claim 10, wherein the first body further includes a bottom cover fixed to the fixing frame by a fastening member, wherein the fixing frame includes the fastening member Through the opening, the circuit is arranged in the accommodating space between the bottom cover and the fixing frame, and the anti-friction component covers the opening. The foldable device described in item 1 of the scope of the patent application further includes a movement restricting member configured to restrict the sliding range of the first part. The foldable device according to claim 13, wherein the movement restricting member is configured so that the expansion angle formed between the first body and the second body is equal to or greater than the movement restriction The angle allows the first part of the flexible display to move. The foldable device described in item 1 of the scope of patent application further includes: a resistance member for applying a force to the flexible display in a direction opposite to the sliding direction of the first part when the flexible display is folded And a movement restricting member configured on the first body to prevent the first part from sliding, wherein the first part slides when the flexible display is folded and is stopped by the movement restricting member.

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