WO2021112305A1

WO2021112305A1 - Electronic device comprising flexible display

Info

Publication number: WO2021112305A1
Application number: PCT/KR2019/017176
Authority: WO
Inventors: 차영도
Original assignee: 엘지전자 주식회사
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2021-06-10

Abstract

An electronic device, according to various embodiments, may comprise: a first frame; a second frame which moves relative to the first frame; a flexible display which, on the basis of the relative movement between the first frame and the second frame, expands or reduces a screen output area which is visually recognized through the front surface of the electronic device; a first magnetic body which is disposed on the inner side of the first frame; a second magnetic body which is disposed on the inner side of the second frame and which, on the basis of a magnetic force between same and the first magnetic body, fixes the second frame to the first frame; and a moving member which moves the position of the second magnetic body on the basis of an electrical signal. Other embodiments are possible.

Description

Electronic device including flexible display

Various embodiments of the present disclosure relate to an electronic device including a flexible display.

With the recent development of digital technology, mobile communication terminals, smart phones, tablets, personal computers, notebooks, personal digital assistants, wearable devices, or digital cameras. Various types of electronic devices, such as a digital camera, are widely used.

As the performance of the electronic device is improved, the demand for a large-area display capable of more efficiently providing various functions is increasing. On the other hand, electronic devices are required to be miniaturized and thinned for easy portability, which conflicts with conventional electronic devices having large-area displays.

Accordingly, by utilizing a flexible display having sufficient elasticity (eg, a foldable display, a rollable display), at least a portion of the display is folded, bent, or rolled when carrying, and, if necessary, An electronic device of a method in which the folded or rolled display can be unfolded and used is under review.

As described above, when the screen display area of the front surface of the electronic device is expanded or reduced using the flexible display, there is a need to provide a device capable of maintaining the electronic device in the expanded or reduced state according to user convenience.

For example, when the screen display area of the front of the electronic device is expanded, there is no need to fix (or fasten) the frame of the electronic device so that the screen display area is maintained in an expanded state unless there is a predetermined user input. there may be

Various embodiments of the present disclosure are intended to provide improved usability of an electronic device including a flexible display.

According to an aspect of an electronic device according to various embodiments for achieving the above or other object, the electronic device includes: a first frame; a second frame moving relative to the first frame; a flexible display configured to expand or reduce a screen output area viewed through a front surface of the electronic device based on a relative movement between the first frame and the second frame; a first magnetic body disposed inside the first frame; a second magnetic body disposed inside the second frame and fixing the second frame to the first frame based on a magnetic force with the first magnetic body; and a moving member configured to release the fixing of the second frame as the position of the second magnetic body is moved based on an electrical signal.

For example, the second magnetic material may fix the second frame to the first frame in a state in which the screen output area is maximized.

For example, the moving member may move the second magnetic body in a direction away from the first magnetic body based on the electrical signal.

The moving member may include a telescoping element that expands and contracts based on a change in temperature.

The stretchable element may contract according to a temperature change generated by the electrical signal.

The moving member may move the second magnetic body in a direction away from the first magnetic body based on contraction of the elastic element according to a temperature change generated by the electrical signal.

The moving member may include a second receptacle for accommodating the second magnetic body; and a link connected to the second receptacle.

The elastic element may have one end fixed to the second frame and the other end fixed to the link.

The link may move linearly based on at least one of a magnetic force between the first magnetic body and the second magnetic body or a contractile force of the elastic element.

The first frame further includes a first receptacle into which at least a part of the second receptacle can be inserted or detached based on at least one of a magnetic force between the first magnetic body and the second magnetic body or a contractile force of the elastic element. can do.

The link may include: a first link that linearly moves in a first direction; a second link linearly moving in a direction opposite to the first direction; and a third link that connects the first link and the second link and rotates.

The moving member may include: a support element supporting the telescoping element; and an elastic element having one side connected to the second frame and the other side connected to the support element.

The elastic element may be compressed upon contraction of the elastic element and decompressed upon relaxation of the elastic element.

and an auxiliary connecting member for guiding the positions of the first frame and the second frame in a state in which the screen output area is maximally expanded, wherein the auxiliary connecting member includes a second connecting member disposed on a bottom surface of the first frame. trimagnetic; and a fourth magnetic material disposed on the lower surface of the second frame.

The moving member may include a stretchable element formed of a shape memory alloy material.

According to various embodiments, an electronic device may include: a first frame; a second frame moving relative to the first frame; a flexible display configured to expand or reduce a screen output area viewed through a front surface of the electronic device based on a relative movement between the first frame and the second frame; a first magnetic body disposed inside the first frame; a second magnetic material disposed inside the second frame and configured to restrict relative movement of the first frame and the second frame based on the magnetism of the first magnetic material when the screen output area is expanded; and a moving member configured to separate the second magnetic body from the first magnetic body by using a shape memory alloy material that expands and contracts based on a change in temperature.

The electronic device according to various embodiments of the present disclosure may selectively expand or reduce the front screen output area using the flexible display. Accordingly, it is possible to provide an electronic device capable of using a large-area display while being portable to a user.

In addition, improved usability is provided in electronic devices including flexible displays through the function of automatically fixing or unfixing the frame position so that the screen output area of the electronic device is not arbitrarily expanded or reduced regardless of the user's intention. can do.

1 is a configuration block diagram of an electronic device according to various embodiments of the present disclosure;

2A is a front perspective view of an electronic device according to an exemplary embodiment;

2B is a front perspective view of an electronic device according to an exemplary embodiment;

3A is a rear view of an electronic device according to an exemplary embodiment;

3B is a rear view of an electronic device according to an exemplary embodiment.

4 is a diagram for describing a structure of an electronic device according to an exemplary embodiment.

5 is a diagram for describing a structure of an electronic device according to an exemplary embodiment.

6 is a diagram for describing a structure of an electronic device according to an exemplary embodiment.

7 is a diagram for describing a structure of an electronic device according to an exemplary embodiment.

8 is a perspective view illustrating a structure of an electronic device according to an exemplary embodiment.

9 is a cross-sectional view illustrating a structure of an electronic device according to an exemplary embodiment.

10 is a perspective view illustrating a structure of an electronic device according to an exemplary embodiment.

11 is a cross-sectional view illustrating a structure of an electronic device according to an exemplary embodiment.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numbers regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "part" for the components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have a meaning or role distinct from each other by themselves. In addition, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "comprises" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Electronic devices according to various embodiments of the present disclosure include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, personal digital assistants (PDA), a portable multimedia player (PMP), a navigation system, and a slate PC. ), tablet PCs, ultrabooks, wearable devices (e.g., smartwatch, smart glass, head mounted display), digital TV, It may include at least one of a desktop computer or digital signage.

Referring to FIG. 1 , an electronic device 100 according to various embodiments includes a wireless communication unit 110 , an input unit 120 , a sensing unit 140 , an output unit 150 , an interface unit 160 , and a memory 170 . ), a control unit (or a controller) 180 and a power supply unit 190 may include at least one.

The electronic device 100 according to various embodiments of the present disclosure may include other components in addition to the components illustrated in FIG. 1 , and may include only some of the components illustrated in FIG. 1 .

The wireless communication unit 110 is connected between the electronic device 100 and the wireless communication system, between the electronic device 100 and another electronic device (not shown) (eg, the electronic device 100 ), or with the electronic device 100 . It may include one or more modules, enabling wireless communication between external servers. The wireless communication unit 110 may include one or more modules for connecting the electronic device 100 to one or more networks. For example, the wireless communication unit 110 includes at least one of a broadcast reception module 111 , a mobile communication module 112 , a wireless Internet module 113 , a short-range communication module 114 , and a location information module 115 . can do.

The input unit 120 may include an image input unit (eg, the camera 121) for receiving an image signal input, an audio input unit (eg, a microphone 122) for receiving an audio signal input, or a user input. at least one of the user input units 123 for For example, the user input unit 123 may receive a user touch input through a touch sensor (or a touch panel) provided in the display 151 or may receive a user input through a physical key. Information (eg, voice data, image data, etc.) collected by the input unit 120 may be analyzed and processed as a user's control command.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the electronic device 100 , surrounding environment information surrounding the electronic device 100 , and user information.

For example, the sensing unit 140 detects at least one of a proximity sensor 141 , an illumination sensor 142 , a touch sensor, or a fingerprint recognition sensor. may include In addition, the sensing unit 140 includes an acceleration sensor, a magnetic sensor, a gravity sensor (G-sensor), a gyroscope sensor, a motion sensor, an RGB sensor, and an infrared sensor. (IR sensor: infrared sensor), ultrasonic sensor, optical sensor, battery gauge, environmental sensor (e.g., barometer, hygrometer, thermometer, radiation detection sensor, thermal sensor, gas detection sensor, etc.), or a chemical sensor (eg, electronic nose, healthcare sensor, biometric sensor, etc.).

Meanwhile, the electronic device 100 disclosed in the present specification may combine and utilize information sensed by at least two or more of these sensors.

The output unit 150 may output information related to sight, hearing, or touch. For example, the output unit 150 may include at least one of a display 151 , a sound output module 152 , a haptic module 153 , and an optical output unit 154 .

In an embodiment, the display 151 may form a layered structure with the touch sensor or be integrally formed to implement a touch screen that simultaneously provides a touch input function and a screen output function. For example, the touch screen not only functions as the user input unit 123 providing an input interface between the electronic device 100 and the user, but also serves as the output unit 150 providing an output interface between the electronic device 100 and the user. can function.

The sound output module 152 may output audio data received from the wireless communication unit 110 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, or stored in advance in the memory 170 to the outside. have. For example, the sound output module 152 may output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed by the electronic device 100 . For example, the sound output module 152 may include at least one of a receiver, a speaker, and a buzzer.

The haptic module 153 may generate various tactile effects that the user can feel. A representative example of the tactile effect generated by the haptic module 153 may include vibration. The intensity and pattern of vibration generated through the haptic module 153 may be determined by a user's selection or setting of the controller 180 . For example, the haptic module 153 may synthesize and output different vibrations or output them sequentially.

The light output unit 154 may output a signal for notifying the occurrence of an event by using the light of the light source of the electronic device 100 . For example, the event generated in the electronic device 100 may include at least one of a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and information reception through an application.

The interface unit 160 may serve as a passage with various types of external devices connected to the electronic device 100 . For example, the interface unit 160 may include a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, and a device equipped with an identification module. It may include at least one of a connecting port, an audio I/O (Input/Output) port, a video I/O (Input/Output) port, and an earphone port. In response to an external device being connected to the interface unit 160 , the electronic device 100 may perform a specific function or control related to the connected external device.

The memory 170 may store data related to various functions of the electronic device 100 . For example, the memory 170 may store a plurality of application programs (or applications) driven in the electronic device 100 , data for operation of the electronic device 100 , and commands. For example, at least some of the application programs may be downloaded from an external server through wireless communication. Alternatively, in another example, at least some of the application programs may be stored in advance in the memory 170 for a specific function (eg, a call reception, a transmission function, a message reception function, a transmission function) of the electronic device 100 . . The application program stored in the memory 170 may be driven to, for example, perform a predetermined operation (or function) of the electronic device 100 based on the controller 180 .

The controller 180 may control the overall operation of the electronic device 100 . For example, the controller 180 processes signals, data, information, etc. input or output through components of the electronic device 100 , or by driving an application program stored in the memory 170 to provide information to the user or It can handle specific functions.

For example, the controller 180 may control at least some of the components of the electronic device 100 illustrated in FIG. 1 to drive an application program stored in the memory 170 . In order to drive the application program, the controller 180 may operate by combining at least two or more of the components included in the electronic device 100 with each other.

The power supply unit 190 may receive external or internal power to supply power to each component included in the electronic device 100 based on the control of the control unit 180 . The power supply 190 may include a battery. The battery may include a built-in battery or a removable battery.

At least some of the above-described components of the electronic device 100 may operate in cooperation with each other to implement the operation, control, or control method of the electronic device 100 according to various embodiments described below. have. Also, the operation, control, or control method of the electronic device 100 may be implemented by driving at least one application program stored in the memory 170 .

The electronic device 100 according to various embodiments of the present disclosure may have a bar shape. However, it is not limited to such a shape and may have various shapes within a range that does not contradict the characteristics of the present invention.

The electronic device 100 according to various embodiments may include, as a display 151 , a rollable, bending, or foldable flexible display (eg, display 151). can

For example, the flexible display may be manufactured on a thin and flexible substrate so that it can be bent, bent, folded, twisted, or rolled like paper while having the screen output characteristics of a conventional flat panel display.

For example, the flexible display may be combined with a touch sensor to implement a flexible touch screen. For example, the controller 180 may sense a touch input through the flexible touch screen of the flexible display and perform various functions corresponding to the touch input.

For example, the electronic device 100 may further include a deformation detecting means capable of detecting deformation of the flexible display. For example, the electronic device 100 may detect a deformation of the flexible display through at least one configuration of the sensing unit 140 . For example, the controller 180 changes and outputs information displayed on the flexible display based on the deformation of the flexible display sensed through at least one of the deformation detecting means or the sensing unit 140 , or outputs a predetermined control signal. can create

The state transformation of the flexible display, for example, expansion or contraction of the screen output area viewed through the front surface of the electronic device 100 may occur based on an external force by the user, but is not limited thereto. For example, the electronic device 100 may change the state of the flexible display (eg, expand or reduce the screen output area) based on an input through the input unit 120 or a specific application command, and a driving unit for this (not shown) may be included.

2A and 2B are front perspective views of the electronic device 100 according to an embodiment of the present disclosure, and FIGS. 3A and 3B are rear views of the electronic device 100 according to an embodiment of the present disclosure.

Referring to FIGS. 2A to 3B , the electronic device 100 according to various embodiments is of a flexible type so that a screen output area (eg, a front area 151F) that can be viewed through the front can be expanded or reduced. of the display 151 (eg, the display 151 of FIG. 1 ).

For example, the display 151 is bent, rolled, or folded about one axis (eg, the winding area 151C), and as the bending, rolling, or folding axis moves, the electronic device ( 100), the screen output area viewed through the front side may be expanded or reduced.

2A and 3A are diagrams illustrating a state in which a front screen output area is reduced in the electronic device 100 according to an embodiment, and FIGS. 2B and 3B are front views of the electronic device 100 according to an embodiment. It is a diagram showing the expanded state of the screen output area of .

The display 151 includes a front area 151F facing the front surface (eg, the first surface) of the electronic device 100 and a rear area 151R facing the rear surface (eg, the second surface) of the electronic device 100 . ), and a wound region 151C between the front region 151F and the rear region 151R.

For example, the front area 151F may include a front screen output area viewed through the front surface of the electronic device 100 . The rear area 151R may include a rear screen output area viewed through the rear surface of the electronic device 100 .

According to various embodiments, the front region 151F may include a fixed region 151U and a variable region 151X.

The fixed area 151U may include a display area viewed from the front of the electronic device 100 even when the front area 151F is reduced to the minimum.

The variable area 151X may include an area additionally viewed from the front surface of the electronic device 100 as the front area 151F is expanded. An area of the variable region 151X may vary according to a degree to which an axis on which the display 151 is bent, rolled, or folded is moved.

According to various embodiments, the electronic device 100 may include frame components for moving a bending, rolling, or folding axis of the display 151 .

For example, the electronic device 100 may include a first frame 210 and a second frame 220 as a frame for supporting the display 151 and other internal components of the electronic device 100 . have.

The first frame 210 is positioned to correspond to the variable region 151X and may support the variable region 151X. The second frame 220 is positioned to correspond to the fixed area 151U and may support the fixed area 151U.

The second frame 220 may move away from or closer to the first frame 210 by moving relative to the first frame 210 .

As the second frame 220 moves relative to the first frame 210 , the area of the front area 151F or the rear area 151R of the display 151 may increase or decrease.

For example, the second frame 220 is relatively moved in a direction away from the first frame 210 (eg, a +x direction), thereby displaying the existing wound area 151C or the back area 151R. A portion can be drawn out to the front as the variable region 151X. In this case, the area of the front area 151F may be increased and the area of the rear area 151R may be reduced.

Conversely, when the second frame 220 moves relative to the first frame 210 in a direction (eg, a -x direction), the variable region 151X is rolled into the rear surface of the electronic device 100 . , the front area 151F may be reduced and the rear area 151R may be expanded accordingly. For example, when the front area 151F is reduced as described above, the first frame 210 and the second frame 220 may be positioned so that a substantial portion overlaps.

According to an exemplary embodiment, the rear region 151R may be viewed from the rear of the electronic device 100 through the rear window 251 having a light transmission characteristic. For example, the electronic device 100 may output predetermined image information through the rear region 151R on the rear surface of the electronic device 100 .

According to an embodiment, the electronic device 100 may include at least one camera 121 on the rear surface of the second frame 220 . As described above, when the second frame 220 is relatively moved in a direction away from the first frame 210 , the area of the rear region 151R is reduced while being overlapped with the first frame 210 . At least a portion of the second frame 220 may be exposed to the outside.

The camera 121 positioned on the second frame 220 may be exposed to the outside through at least a portion of the second frame 220 exposed to the outside. For example, the user may perform photographing using the camera 121 on the rear surface of the second frame 220 in a state in which the front area 151F is expanded.

Meanwhile, in the electronic device 100 according to another exemplary embodiment, unlike those illustrated in FIGS. 2A to 3B , the first frame 210 supports the fixed area 151U, and the second frame 220 supports the variable area. (151X) may be disposed in a form to support. In addition, the wound area 151C of the display 151 may be located on the side of the second frame 220 , and the rear camera 121 may be arranged on the first frame 210 .

In this case, when the second frame 220 moves relative to the first frame 210 in a direction away from it, a portion of the display located on the side and rear of the second frame 220 is drawn out to the front, so that the front variable The area of the region 151X may be expanded. In addition, the camera 121 disposed on the first frame 210 may be exposed to the outside on the rear surface of the electronic device 100 .

4 to 7 are schematic diagrams for explaining the operation and structure of an electronic device according to an embodiment of the present disclosure.

FIG. 4 is a diagram schematically illustrating an internal structure in a state in which a front screen output area (eg, a front area 151F, FIG. 2B ) is reduced in the electronic device 100 according to an exemplary embodiment, for example, FIGS. 2A and 2A and FIG. 2B . It may correspond to the state of the electronic device 100 illustrated in FIG. 3A . 5 to 7 are views schematically illustrating the inside of the electronic device 100 in a state in which the front screen output area is expanded, for example, the electronic device 100 shown in FIGS. 2B and 3B , according to an exemplary embodiment. ) can correspond to the state of

The electronic device 100 may expand or reduce the front screen output area based on the relative movement between the first frame 210 and the second frame 220 .

4 to 7 , in the electronic device 100 according to various embodiments, a first magnetic material 410 disposed inside the first frame 210 and an inside of the second frame 220 are disposed. The second magnetic material 420 may be included.

The second magnetic material 420 may fix the second frame 220 to the first frame 210 based on a magnetic force with the first magnetic material 410 .

The fixing by the second magnetic material 420 is, according to the relative movement between the first frame 210 and the second frame 220, the second frame 220 is a specific point of the first frame 210, for example, , may be performed when the first magnetic material 410 and the second magnetic material 420 reach a point where they are disposed adjacent to each other.

For example, as shown in FIG. 4 , the first frame 210 and the second frame 220 are substantially overlapped to form a screen output area (front area 151F, see FIG. 2A ) of the front of the electronic device 100 . )) in a reduced state, the first magnetic body 410 and the second magnetic body 420 are positioned on different regions, and thus magnetic force may not be generated between them.

Meanwhile, as shown in FIGS. 5 to 7 , the second frame 220 is relatively moved in a direction away from the first frame 210 (eg, the +x direction), so that the front screen output area (front area ( 151F (refer to FIG. 2b)), the first magnetic material 410 and the second magnetic material 420 are positioned adjacent to each other, and in this case, the first magnetic material 410 and the second magnetic material 420 ) can generate magnetism between them.

For example, when the second magnetic material 420 and the first magnetic material 410 are arranged in a line along the y-axis direction, the second magnetic material 420 is formed by a magnetic force with the first magnetic material 410 by the first magnetic material. The 410 may move toward the side of the disposed first frame 210 .

On the side surface of the first frame 210 , at least a portion of a second magnetic material 420 (or a second receptacle 512 in which the second magnetic material 420 is accommodated) can be inserted into a space (eg, the first receptacle 212 (see FIGS. 8 and 11 )) may be included.

For example, as shown in FIG. 5 , the second frame 220 moves in a direction away from the first frame 210 (eg, in the +x direction) so that the first magnetic body 410 and the second magnetic body 420 are formed. When located at a specific point adjacent to, as shown in FIG. 6 , the second magnetic body 420 is formed on the first frame 210 according to the magnetic force with the first magnetic body 410 disposed on the side of the first frame 210 . It can be inserted into the space provided on the inside.

As described above, while the second magnetic body 420 disposed on the second frame 220 moves in a direction closer to the first magnetic body 410 disposed on the first frame 210 , the second frame 220 moves to the first It may be fixed to one side of the frame 210 by a hook fastening method.

According to various embodiments, the electronic device 100 may include an auxiliary connecting member for guiding the positions of the first frame 210 and the second frame 220 .

For example, the auxiliary connecting member may include a third magnetic material 610 disposed on the bottom surface of the first frame 210 and a fourth magnetic material 620 disposed on the bottom surface of the second frame 220 .

The third magnetic material 610 and the fourth magnetic material 620 include the first frame 210 and the second frame ( ) such that the first magnetic material 410 and the second magnetic material 420 are arranged in a line in the y-axis direction. 220) may serve to guide the position of the liver.

For example, the fourth magnetic body 620 disposed on the bottom surface of the second frame 220, based on the relative movement between the first frame 210 and the second frame 220, the third magnetic body 610 The first frame 210 may be moved to the vicinity of one point. When the fourth magnetic material 620 moves to a point adjacent to the third magnetic material 610 , the second frame 220 is formed by the attractive force between the third magnetic material 610 and the fourth magnetic material 620 , the first It may be temporarily fixed to the frame 210 .

As described above, when the first frame 210 and the second frame 220 are temporarily fixed by the attractive force between the third magnetic material 610 and the fourth magnetic material 620 (see FIG. 5 ), the first magnetic material The second frame 220 may be coupled to the first frame 210 in a hook fastening manner (see FIG. 6 ) by the attractive force between the 410 and the second magnetic body 420 , and through this, the second frame 220 may be It may be firmly fixed (or fastened) to the first frame 210 .

According to various embodiments, the position where the magnetic force acts between the first magnetic body 410 and the second magnetic body 420 and/or the position where the magnetic force acts between the third magnetic body 610 and the fourth magnetic body 620 is, It may correspond to the positions of the first frame 210 and the second frame 220 when the screen output area of the front of the electronic device 100 is in a state in which it is fully expanded. However, the present invention is not limited thereto, and in the electronic device 100 according to various embodiments of the present disclosure, the screen output area of the front surface of the electronic device 100 has a predetermined size (eg, a minimum size or an intermediate size). In this state, in order to fix the positions of the first frame 210 and the second frame 220 , at least one of the plurality of

magnetic materials

410 , 420 , 610 , and 620 may be disposed at various positions.

Meanwhile, the first frame 210 and the second frame 220 fixed by the hook fastening method as described above may be selectively released under the control of the electronic device 100 .

Referring to FIG. 7 , the electronic device 100 according to various embodiments moves the position of the second magnetic material 420 based on an electrical signal between the first frame 210 and the second frame 220 . can be unpinned.

For example, the electronic device 100 may include a moving member for moving the position of the second magnetic body 420 based on an electrical signal.

The moving member according to an embodiment may include the elastic element 300 that expands and contracts based on a change in temperature.

The stretchable element 300 may be contracted or relaxed according to a temperature change that occurs based on an electrical signal. That is, the length of the stretchable element 300 may vary based on whether a temperature change occurs in the stretchable element 300 .

For example, the stretchable element 300 may be formed using a shape memory alloy material, and may have a wire shape as shown in FIGS. 4 to 7 .

The moving member may move the second magnetic body 420 in a direction away from the first magnetic body 410 (ie, the inner direction of the electronic device 100 ) based on the contraction of the elastic element 300 . Through this, the fixing of the hook fastening method between the first frame 210 and the second frame 220 may be released.

More specifically, the moving member may include a second receptacle 512 for accommodating the second magnetic body 420 and a link element connected to the second receptacle 512 .

The link element may include a first link 510 , a second link 520 , and a third link 530 .

The first link 510 and the second link 520 may be connected to each other by a third link 530 . The third link 530 includes the first link 510 and the second link 520 so that the first link 510 and the second link 520 can linearly move away from or closer to each other. ), and may rotate during linear motion of the first link 510 and the second link 520 . For example, when the first link 510 moves linearly, by the rotational motion of the third link 530 , the second link 520 is also linear in the direction opposite to the moving direction of the first link 510 . can exercise Conversely, even when the second link 520 moves linearly, by the rotational motion of the third link 530 , the first link 510 also moves in a direction opposite to that of the second link 520 . can move linearly.

The first link 510 and/or the second link 520 may include a magnetic force between the second magnetic body 420 and the first magnetic body 410 ; or the retractive force of the elastic element 300; Based on at least one of

At least one end of the first link 510 or the second link 520 may be connected to the second receptacle 512 in which the second magnetic material 420 is accommodated. Accordingly, at least one of the first link 510 or the second link 520 and the second magnetic body 420 may move integrally.

For example, the second magnetic material 420 may be provided at an end of the first link 510 and an end of the second link 520 , respectively. In addition, in response to each of the second magnetic material 420 at the end of the first link 510 and the second magnetic material 420 at the end of the second link 520 , a plurality of magnetic materials are formed on both sides of the first frame 410 . A single magnetic material 410 may be provided. Meanwhile, the electronic device 100 according to another embodiment may include the second magnetic body 420 only at one of the ends of the first link 510 and the second link 520 .

The first link 510 and the second link 520 may move according to the magnetic force of the second magnetic body 420 .

For example, the first link 510 and the second link 520, when the second magnetic body 420 is positioned adjacent to the first magnetic body 410 (eg, the first magnetic body 410 and the second When the magnetic body 420 is positioned in a line in the y-axis direction) (refer to FIG. 5), the first link 510 and the second link (see Fig. 5) by the attractive force between the first magnetic body 410 and the second magnetic body 420. The linear motions 520 may be performed in a direction away from each other, that is, in an outward direction of the electronic device 100 (refer to FIG. 6 ).

Meanwhile, the elastic element 300 has one end connected to the second frame 220 (eg, the protrusion 225 on the bottom surface of the second frame 220), and the other end is connected to the second receptacle 512 (or the first It may be connected to any one of the link 510 and the second link 520).

When the elastic element 300 contracts based on an electrical signal or a change in temperature, the second receptacle 512 connected to the elastic element 300 moves inside the electronic device 100 by the contracting force of the elastic element 300 . direction can be moved. In addition, link elements connected to the second receptacle 512 (eg, the first link 510 , the second link 520 , and the third link 530 ) are also the second receptacle 512 and the elastic element 300 together with the second receptacle 512 . ) can move according to the contraction of

As described above, the first link 510 and the second link 520 may simultaneously linearly move in opposite directions.

For example, when a link element moves based on a magnetic force between the first magnetic body 410 and the second magnetic body 420 , the first link 510 and the second link 520 move away from each other (ie, the electronic device 100 ). ) in the outward direction). (See Fig. 6)

In addition, when the second receptacle 512 is moved based on the contractile force of the elastic element 300 , the first link 510 and the second link 520 move closer to each other (ie, in the direction of the electronic device 100 ). can move linearly in the inward direction). (See Fig. 7)

According to various embodiments, the telescoping element 300 may be arranged to be side supported by the support element 310 .

The support element 310 may be connected to the second frame 220 through the elastic element 320 .

The support element 310 may compress the elastic element 320 based on at least one of a magnetic force between the second magnetic body 420 and the first magnetic body 410 or a contractile force of the elastic element 300 .

For example, when the second magnetic material 420 moves in a direction closer to the first magnetic material 410 based on a magnetic force with the first magnetic material 410 , the second receptacle in which the second magnetic material 420 is accommodated. The elastic element 300 connected at one end to the 512 may press the support element 310 to partially compress the elastic element 320 . (See Fig. 6)

Further, based on the contracting of the telescoping element 300 , the telescoping element 300 pulls the second receptacle 512 away from the first magnetic body 410 , and presses the support element 310 . Thus, the elastic element 320 can be compressed to a significant extent. (See Fig. 7)

On the other hand, when the elastic element 300 is relaxed, the support element 310 may move to a designated position according to the compressive recovery force of the elastic element 320 , and may support the side of the elastic element 300 . (See Figs. 5 and 4)

In order to perform the above-described series of operations, in the electronic device 100 according to an embodiment, the magnetic force between the first magnetic body 410 and the second magnetic body 420 is greater than the compressive force of the elastic element 320 , and the elastic element It may be smaller than the contractile force of (300).

According to various embodiments, the electronic device 100 determines whether to apply an electrical signal to the stretchable element 300 under the control of the controller 180 ( FIG. 1 ), so that the first frame ( The fixation between the 210 and the second frame 220 may be released.

For example, when determining that a preset condition is satisfied, the controller 180 may apply an electrical signal to the stretchable element 300 . For example, the controller 180 receives user input information or sensing information by using at least one of the input unit 120 ( FIG. 1 ) and the sensing unit 140 ( FIG. 1 ) included in the electronic device 100 , and the If it is determined that the information meets the conditions for releasing the fixation between the first frame 210 and the second frame 220 , an electrical signal may be applied to the elastic element 300 .

8 to 11 are diagrams for explaining a fixing method of an electronic device according to various embodiments of the present disclosure.

FIG. 8 is a diagram illustrating an internal structure in a state in which a screen output area of the front surface of the electronic device 100 is reduced according to an exemplary embodiment. 9 is a schematic cross-sectional view taken along line A-A' of FIG. 8 .

FIG. 10 is a diagram illustrating an internal structure in a state in which the screen output area of the front surface of the electronic device 100 is expanded according to an exemplary embodiment, and FIG. 11 is a schematic cutaway taken along line B-B' of FIG. 10 . It is a cross section.

8 to 11 , the second frame 220 according to various embodiments provides a first frame 220 to expand or reduce a screen output area of the front surface (eg, -z direction) of the electronic device 100 . It may move relative to the frame 210 along the x-axis direction.

An opening is provided at the side end of the second frame 220 so that the second receptacle 512 connected to the link element (eg, the first link 510) is movable in the y-axis direction, and through the opening, the second receptacle 512 is provided. At least a portion of the 512 may protrude to the outside of the second frame 220 .

Meanwhile, a first receptacle 212 into which the second receptacle 512 can be inserted may be provided at one side of the side of the first frame 210 in contact with the second frame 220 .

A first magnetic body 410 may be disposed inside the first receptacle 212 , and a second magnetic body 420 may be disposed inside the second receptacle 512 . As the second frame 220 moves relative to the first frame 210 in the x-axis direction, the second magnetic body 420 moves to a position adjacent to the first magnetic body 410, An attractive force may be generated between the second magnetic body 420 and the first magnetic body 410 . Due to the attractive force between the second magnetic material 420 and the first magnetic material 410 , the second receptacle 512 may be inserted into the first receptacle 212 as shown in FIG. 11 .

Through such a hook fastening method, the second frame 220 may be fixed to one side of the first frame 210 , and the electronic device 100 may maintain a constant front screen output area.

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations will be possible without departing from the essential quality of the present invention by those skilled in the art to which the present invention pertains. Accordingly, the embodiments disclosed in the present specification are for explanation rather than limiting the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims

In an electronic device,

first frame;

a second frame moving relative to the first frame;

a flexible display configured to expand or reduce a screen output area viewed through a front surface of the electronic device based on a relative movement between the first frame and the second frame;

a first magnetic body disposed inside the first frame;

a second magnetic body disposed inside the second frame and fixing the second frame to the first frame based on a magnetic force with the first magnetic body; and

and a moving member configured to release the fixing of the second frame as the position of the second magnetic body is moved based on an electrical signal.
The method of claim 1,

The second magnetic material fixes the second frame to the first frame in a state in which the screen output area is maximally expanded.
The method of claim 1,

The moving member is

An electronic device that moves the second magnetic body in a direction away from the first magnetic body based on the electrical signal.
The method of claim 1,

The electronic device, wherein the moving member includes a telescoping element that expands and contracts based on a change in temperature.
5. The method of claim 4,

The elastic element contracts according to a temperature change generated by the electrical signal, the electronic device.
5. The method of claim 4,

The moving member may move the second magnetic body in a direction away from the first magnetic body based on contraction of the elastic element according to a temperature change generated by the electrical signal.
5. The method of claim 4,

The moving member is

a second receptacle for accommodating the second magnetic body; and

and a link element coupled to the second receptacle.
8. The method of claim 7,

The elastic element is

One end is fixed to the second frame and the other end is fixed to the link element.
9. The method of claim 8,

The link element moves linearly based on at least one of a magnetic force between the first magnetic body and the second magnetic body or a contractile force of the elastic element.
10. The method of claim 9,

The first frame is

The electronic device of claim 1, further comprising: a first receptacle into which at least a portion of the second receptacle can be inserted or detached based on at least one of a magnetic force between the first magnetic body and the second magnetic body or a contracting force of the elastic element.
10. The method of claim 9,

The link element is

a first link that linearly moves in a first direction;

a second link linearly moving in a direction opposite to the first direction; and

and a third link that connects the first link and the second link and rotates.
5. The method of claim 4,

The moving member is

a support element supporting the telescoping element; and

The electronic device further comprising an elastic element having one side connected to the second frame and the other side connected to the support element.
11. The method of claim 10,

The elastic element is compressed when the elastic element is contracted, and is decompressed when the elastic element is relaxed.
The method of claim 1,

Further comprising an auxiliary connecting member for guiding the positions of the first frame and the second frame in a state in which the screen output area is maximized,

The auxiliary connecting member is

a third magnetic material disposed on the lower surface of the first frame; and

and a fourth magnetic material disposed on a bottom surface of the second frame.
In an electronic device,

first frame;

a second frame moving relative to the first frame;

a flexible display configured to expand or reduce a screen output area viewed through a front surface of the electronic device based on a relative movement between the first frame and the second frame;

a first magnetic body disposed inside the first frame;

a second magnetic material disposed inside the second frame and configured to restrict relative movement of the first frame and the second frame based on the magnetism of the first magnetic material when the screen output area is expanded; and

and a moving member configured to separate the second magnetic body from the first magnetic body by using a shape memory alloy material that expands and contracts based on a change in temperature.