Patent Publication Number: US-2023164249-A1

Title: Rollable electronic device including elastic member

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of International Application No. PCT/KR2022/012958 designating the United States, filed on Aug. 30, 2022, in the Korean Intellectual Property Receiving Office and claiming priority to Korean Patent Application No. 10-2021-0163060, filed on Nov. 24, 2021, in the Korean Intellectual Property Office, and to Korean Patent Application No. 10-2021-0187218, filed on Dec. 24, 2021, in the Korean Intellectual Property Office, the disclosures of all of which are incorporated by reference herein in their entireties. 
    
    
     BACKGROUND 
     Field 
     The disclosure is related to a rollable electronic device including an elastic member. 
     Description of Related Art 
     In line with development of information/communication technologies and semiconductor technologies, various functions tend to be integrated in a single portable electronic device. For example, electronic devices may implement not only a communication function, but also an entertainment function (for example, gaming), a multimedia function (for example, music/video playback), communication and security functions for mobile banking and the like, a scheduling function, and an electronic wallet function. Such electronic devices have become compact such that users can conveniently carry the same. 
     Mobile communication services have been expanded to multimedia services, making it desirable to increase the display size of electronic devices such that users can sufficiently use multimedia services in addition to voice communication or short messages. However, there is a trade-off between the display size of electronic devices and the compactness of electronic devices. 
     SUMMARY 
     According to an embodiment of the disclosure, an electronic device may include a housing including a first housing and a second housing configured to receive at least a part of the first housing and guide a sliding movement of the first housing, a display configured to unfold based on the sliding movement of the first housing, an elastic member disposed in the housing and configured to be compressed based on the sliding movement of the first housing, a sensor module disposed in the housing and configured to sense a pressure provided by the elastic member, and a processor configured to determine a sliding distance of the first housing, based on the pressure sensed by the sensor module. 
     According to an embodiment of the disclosure, an electronic device may include a housing including a first housing and a second housing configured to receive at least a part of the first housing and guide a sliding movement of the first housing, a display configured to unfold based on the sliding movement of the first housing, a first elastic member connected to the second housing and configured to increase compressive strength when the first housing slidingly moves in a second direction, a second elastic member connected to the second housing and configured to increase compressive strength when the first housing moves in a first direction opposite to the second direction, a first sensor module configured to sense a first pressure provided by the first elastic member, a second sensor module configured to sense a second pressure provided by the second elastic member, and a processor configured to determine a sliding distance of the first housing, based on the first pressure or the second pressure. 
     According to an embodiment of the disclosure, an operation method of a rollable electronic device may include sensing a pressure provided by an elastic member configured to be compressed based on a sliding movement of the electronic device by using a sensor module, determining a sliding distance of the electronic device, based on the pressure, and adjusting a size of an image output from a display, based on the sliding distance. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects, features and advantages of certain embodiments of the present disclosure will be more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a block diagram of an electronic device in a network environment, according to an embodiment of the disclosure. 
         FIG.  2    is a view of an electronic device in a closed state, according to an embodiment of the disclosure. 
         FIG.  3    is a view of an electronic device in an opened state, according to an embodiment of the disclosure. 
         FIG.  4    is an exploded perspective view of an electronic device, according to an embodiment of the disclosure. 
         FIG.  5    is a front view of an electronic device in a closed state, according to an embodiment of the disclosure, and  FIG.  6    is a front view of an electronic device in an opened state, according to an embodiment of the disclosure. 
         FIG.  7    is a front view of an electronic device in a closed state, according to an embodiment of the disclosure, and  FIG.  8    is a front view of an electronic device in an opened state, according to an embodiment of the disclosure. 
         FIGS.  9 A,  9 B,  9 C, and  10    are views illustrating a movement of an elastic member based on a sliding movement of an electronic device according to an embodiment of the disclosure. 
         FIG.  11    is a flowchart illustrating an operation of an electronic device, according to an embodiment of the disclosure. 
         FIG.  12    is a view illustrating a pressure value detected by a sensor module, based on a sliding distance, according to an embodiment of the disclosure. 
         FIG.  13    is a view illustrating a pressure sensor in which an elastic modulus is changed, according to an embodiment of the disclosure. 
         FIGS.  14  and  15    are perspective views of an electronic device including a moving block and a rail member, according to an embodiment of the disclosure. 
     
    
    
     DETAILED DESCRIPTION 
       FIG.  1    is a block diagram illustrating an electronic device in a network environment according to an embodiment of the disclosure. 
     Referring to  FIG.  1   , the electronic device  101  in the network environment  100  may communicate with an electronic device  102  via a first network  198  (e.g., a short-range wireless communication network), or an electronic device  104  or a server  108  via a second network  199  (e.g., a long-range wireless communication network). According to an embodiment, the electronic device  101  may communicate with the electronic device  104  via the server  108 . According to an embodiment, the electronic device  101  may include a processor  120 , memory  130 , an input module  150 , a sound output module  155 , a display module  160 , an audio module  170 , a sensor module  176 , an interface  177 , a connection terminal  178 , a haptic module  179 , a camera module  180 , a power management module  188 , a battery  189 , a communication module  190 , a subscriber identification module (SIM)  196 , or an antenna module  197 . In various embodiments, at least one of the components (e.g., the connecting terminal  178 ) may be omitted from the electronic device  101 , or one or more other components may be added in the electronic device  101 . In various embodiments, some of the components (e.g., the sensor module  176 , the camera module  180 , or the antenna module  197 ) may be implemented as a single component (e.g., the display module  160 ). 
     The processor  120  may execute, for example, software (e.g., a program  140 ) to control at least one other component (e.g., a hardware or software component) of the electronic device  101  coupled with the processor  120 , and may perform various data processing or computation. According to an embodiment, as at least part of the data processing or computation, the processor  120  may store a command or data received from another component (e.g., the sensor module  176  or the communication module  190 ) in volatile memory  132 , process the command or the data stored in the volatile memory  132 , and store resulting data in non-volatile memory  134 . According to an embodiment, the processor  120  may include a main processor  121  (e.g., a central processing unit (CPU) or an application processor (AP)), or an auxiliary processor  123  (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction with, the main processor  121 . For example, when the electronic device  101  includes the main processor  121  and the auxiliary processor  123 , the auxiliary processor  123  may be adapted to consume less power than the main processor  121 , or to be specific to a specified function. The auxiliary processor  123  may be implemented as separate from, or as part of the main processor  121 . 
     The auxiliary processor  123  may control, for example, at least some of functions or states related to at least one component (e.g., the display module  160 , the sensor module  176 , or the communication module  190 ) among the components of the electronic device  101 , instead of the main processor  121  while the main processor  121  is in an inactive (e.g., sleep) state, or together with the main processor  121  while the main processor  121  is in an active (e.g., executing an application) state. According to an embodiment, the auxiliary processor  123  (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera module  180  or the communication module  190 ) functionally related to the auxiliary processor  123 . According to an embodiment, the auxiliary processor  123  (e.g., the neural processing unit) may include a hardware structure specified for artificial intelligence model processing. An artificial intelligence model may be generated by machine learning. Such learning may be performed, e.g., by the electronic device  101  where the artificial intelligence is performed or via a separate server (e.g., the server  108 ). Learning algorithms may include, but are not limited to, e.g., supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include a plurality of artificial neural network layers. The artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), deep Q-network or a combination of two or more thereof but is not limited thereto. The artificial intelligence model may, additionally or alternatively, include a software structure other than the hardware structure. 
     The memory  130  may store various data used by at least one component (e.g., the processor  120  or the sensor module  176 ) of the electronic device  101 . The various data may include, for example, software (e.g., the program  140 ) and input data or output data for a command related thereto. The memory  130  may include the volatile memory  132  or the non-volatile memory  134 . 
     The program  140  may be stored in the memory  130  as software, and may include, for example, an operating system (OS)  142 , middleware  144 , or an application  146 . 
     The input module  150  may receive a command or data to be used by another component (e.g., the processor  120 ) of the electronic device  101 , from the outside (e.g., a user) of the electronic device  101 . The input module  150  may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen). 
     The sound output module  155  may output sound signals to the outside of the electronic device  101 . The sound output module  155  may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as playing multimedia or playing record. The receiver may be used for receiving incoming calls. According to an embodiment, the receiver may be implemented as separate from, or as part of the speaker. 
     The display module  160  may visually provide information to the outside (e.g., a user) of the electronic device  101 . The display module  160  may include, for example, a display, a hologram device, or a projector and control circuitry to control a corresponding one of the display, hologram device, and projector. According to an embodiment, the display module  160  may include a touch sensor adapted to detect a touch, or a pressure sensor adapted to measure the intensity of force incurred by the touch. 
     The audio module  170  may convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module  170  may obtain the sound via the input module  150 , or output the sound via the sound output module  155  or an external electronic device (e.g., an electronic device  102  (e.g., a speaker or a headphone)) directly or wirelessly coupled with the electronic device  101 . 
     The sensor module  176  may detect an operational state (e.g., power or temperature) of the electronic device  101  or an environmental state (e.g., a state of a user) external to the electronic device  101 , and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module  176  may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor. 
     The interface  177  may support one or more specified protocols to be used for the electronic device  101  to be coupled with the external electronic device (e.g., the electronic device  102 ) directly or wirelessly. According to an embodiment, the interface  177  may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface. 
     A connection terminal  178  may include a connector via which the electronic device  101  may be physically connected with the external electronic device (e.g., the electronic device  102 ). According to an embodiment, the connection terminal  178  may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector). 
     The haptic module  179  may convert an electrical signal into a mechanical stimulus (e.g., a vibration or a movement) or electrical stimulus which may be recognized by a user via his tactile sensation or kinesthetic sensation. According to an embodiment, the haptic module  179  may include, for example, a motor, a piezoelectric element, or an electric stimulator. 
     The camera module  180  may capture a still image or moving images. According to an embodiment, the camera module  180  may include one or more lenses, image sensors, image signal processors, or flashes. 
     The power management module  188  may manage power supplied to the electronic device  101 . According to an embodiment, the power management module  188  may be implemented as at least part of, for example, a power management integrated circuit (PMIC). 
     The battery  189  may supply power to at least one component of the electronic device  101 . According to an embodiment, the battery  189  may include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell. 
     The communication module  190  may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device  101  and the external electronic device (e.g., the electronic device  102 , the electronic device  104 , or the server  108 ) and performing communication via the established communication channel. The communication module  190  may include one or more communication processors that are operable independently from the processor  120  (e.g., the application processor (AP)) and supports a direct (e.g., wired) communication or a wireless communication. According to an embodiment, the communication module  190  may include a wireless communication module  192  (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module  194  (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules may communicate with the external electronic device via the first network  198  (e.g., a short-range communication network, such as Bluetooth™, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the second network  199  (e.g., a long-range communication network, such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or wide area network (WAN)). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multi components (e.g., multi chips) separate from each other. The wireless communication module  192  may identify or authenticate the electronic device  101  in a communication network, such as the first network  198  or the second network  199 , using subscriber information (e.g., international mobile subscriber identity (IMSI)) stored in the subscriber identification module  196 . 
     The wireless communication module  192  may support a 5G network, after a 4G network, and next-generation communication technology, e.g., new radio (NR) access technology. The NR access technology may support enhanced mobile broadband (eMBB), massive machine type communications (mMTC), or ultra-reliable and low-latency communications (URLLC). The wireless communication module  192  may support a high-frequency band (e.g., the mmWave band) to achieve, e.g., a high data transmission rate. The wireless communication module  192  may support various technologies for securing performance on a high-frequency band, such as, e.g., beamforming, massive multiple-input and multiple-output (massive MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module  192  may support various requirements specified in the electronic device  101 , an external electronic device (e.g., the electronic device  104 ), or a network system (e.g., the second network  199 ). According to an embodiment, the wireless communication module  192  may support a peak data rate (e.g., 20 Gbps or more) for implementing eMBB, loss coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or a round trip of 1 ms or less) for implementing URLLC. 
     The antenna module  197  may transmit or receive a signal or power to or from the outside (e.g., the external electronic device) of the electronic device  101 . According to an embodiment, the antenna module may include an antenna including a radiating element including a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module  197  may include a plurality of antennas (e.g., array antennas). In such a case, at least one antenna appropriate for a communication scheme used in the communication network, such as the first network  198  or the second network  199 , may be selected, for example, by the communication module  190  from the plurality of antennas. The signal or the power may then be transmitted or received between the communication module  190  and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as part of the antenna module  197 . 
     According to an embodiment, the antenna module  197  may form a mmWave antenna module. According to an embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on a first surface (e.g., the bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a designated high-frequency band (e.g., the mmWave band), and a plurality of antennas (e.g., array antennas) disposed on a second surface (e.g., the top or a side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving signals of the designated high-frequency band. 
     At least some of the above-described components may be coupled mutually and communicate signals (e.g., commands or data) therebetween via an inter-peripheral communication scheme (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)). 
     According to an embodiment, commands or data may be transmitted or received between the electronic device  101  and the external electronic device  104  via the server  108  coupled with the second network  199 . Each of the external electronic devices  102  or  104  may be a device of a same type as, or a different type, from the electronic device  101 . According to an embodiment, all or some of operations to be executed at the electronic device  101  may be executed at one or more external devices of the external electronic devices  102 ,  104 , or  108 . For example, if the electronic device  101  should perform a function or a service automatically, or in response to a request from a user or another device, the electronic device  101 , instead of, or in addition to, executing the function or the service, may request the one or more external electronic devices to perform at least part of the function or the service. The one or more external electronic devices receiving the request may perform the at least part of the function or the service requested, or an additional function or an additional service related to the request, and transfer an outcome of the performing to the electronic device  101 . The electronic device  101  may provide the outcome, with or without further processing of the outcome, as at least part of a reply to the request. To that end, a cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device  101  may provide ultra low-latency services using, e.g., distributed computing or mobile edge computing. In an embodiment, the external electronic device  104  may include an internet-of-things (IoT) device. The server  108  may be an intelligent server using machine learning and/or a neural network. According to an embodiment, the external electronic device  104  or the server  108  may be included in the second network  199 . The electronic device  101  may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology or IoT-related technology. 
     The electronic device according to an embodiment may be one of various types of electronic devices. The electronic devices may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, a home appliance, or the like. According to an embodiment of the disclosure, the electronic devices are not limited to those described above. 
     It should be appreciated that an embodiment of the disclosure and the terms used therein are not intended to limit the technological features set forth herein to particular embodiments and include various changes, equivalents, or replacements for a corresponding embodiment. With regard to the description of the drawings, similar reference numerals may be used to refer to similar or related elements. It is to be understood that a singular form of a noun corresponding to an item may include one or more of the things, unless the relevant context clearly indicates otherwise. As used herein, each of such phrases as “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B, or C”, “at least one of A, B, and C”, and “at least one of A, B, or C”, may include any one of, or all possible combinations of the items enumerated together in a corresponding one of the phrases. As used herein, such terms as “1st” and “2nd”, or “first” and “second” may be used to simply distinguish a corresponding component from another, and does not limit the components in other aspect (e.g., importance or order). It is to be understood that if an element (e.g., a first element) is referred to, with or without the term “operatively” or “communicatively”, as “coupled with”, “coupled to”, “connected with”, or “connected to” another element (e.g., a second element), the element may be coupled with the other element directly (e.g., wiredly), wirelessly, or via a third element. 
     As used in connection with an embodiment of the disclosure, the term “module” may include a unit implemented in hardware, software, or firmware, or any combination thereof, and may interchangeably be used with other terms, for example, “logic”, “logic block”, “part”, or “circuitry”. A module may be a single integral component, or a minimum unit or part thereof, adapted to perform one or more functions. For example, according to an embodiment, the module may be implemented in a form of an application-specific integrated circuit (ASIC). 
     According to an embodiment, each component (e.g., a module or a program) of the above-described components may include a single entity or multiple entities, and some of the multiple entities may be separately disposed in different components. According to an embodiment, one or more of the above-described components or operations may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., modules or programs) may be integrated into a single component. In such a case, the integrated component may still perform one or more functions of each of the plurality of components in the same or similar manner as they are performed by a corresponding one of the plurality of components before the integration. According to an embodiment, operations performed by the module, the program, or another component may be carried out sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order or omitted, or one or more other operations may be added. 
       FIG.  2    is a view of an electronic device in a closed state, according to an embodiment of the disclosure.  FIG.  3    is a view of an electronic device in an opened state, according to an embodiment of the disclosure. For example,  FIG.  2    is a view illustrating a state in which a second display area A2 is received in a housing  202 .  FIG.  3    is a view illustrating a state in which at least a part of the second display area A2 is visually exposed to the outside of the housing  202 . 
     The state shown in  FIG.  2    may refer, for example, to a first housing  201  being closed with respect to a second housing  202 , and the state shown in  FIG.  3    may refer, for example, to the first housing  201  being opened with respect to the second housing  202 . According to an embodiment, a “closed state” or an “opened state” may be defined as a state in which an electronic device is closed or opened. 
     Referring to  FIGS.  2  and  3   , an electronic device  101  may include a housing  200 . The housing  200  may include the second housing  202  and the first housing  201 , which can move with respect to the second housing  202 . In an embodiment, it may be interpreted as a structure in which the second housing  202  is slidably disposed on the first housing  201  in the electronic device  101 . According to an embodiment, the first housing  201  may be disposed to be able to reciprocate by a predetermined distance in a direction shown with reference to the second housing  202 , for example, a direction indicated by an arrow ①. The configuration of the electronic device  101  of  FIGS.  2  and  3    may be all or partly the same as the configuration of the electronic device  101  of  FIG.  1   . 
     According to an embodiment, the first housing  201  may be referred to as, for example, a first structure, a slide part, or a slide housing, and may be disposed to be able to reciprocate with respect to the second housing  202 . According to an embodiment, the second housing  202  may be referred to as, for example, a second structure, a main part, or a main housing. The second housing  202  may receive at least a part of the first housing  201  and guide a sliding movement of the first housing  201 . According to an embodiment, the second housing  202  may receive various electrical and electronic components such as a main circuit board or a battery. According to an embodiment, at least a part (e.g., a first display area A1) of a display  203  may be visually exposed to the outside of the housing  200 . According to an embodiment, as the first housing  201  moves (e.g., slides) with respect to the second housing  202 , another part (e.g., a second display area A2) of the display  203  may be received (e.g., a slide-in operation) in the inside of the second housing  202 , or may be visually exposed (e.g., a slide-out operation) to the outside of the second housing  202 . According to an embodiment, a motor, a speaker, a SIM socket, and/or a sub-circuit board electrically connected to a main circuit board may be disposed in the first housing  201 . The main circuit board on which electrical components such as an application processor (AP) and a communication processor (CP) are mounted may be disposed in the second housing  202 . 
     According to an embodiment, the first housing  201  may include first sidewalls  211   a ,  211   b , and  211   c  for surrounding at least a part of the display  203  and/or a multi-bar structure (e.g., a multi-bar structure  213  of  FIG.  4   ). According to an embodiment, the first sidewalls  211   a ,  211   b , and  211   c  may extend from a first plate (e.g., a first plate  211  of  FIG.  4   ). The first sidewalls  211   a ,  211   b , and  211   c  may include a 2nd first ((1-2)th) sidewall  211   b , a 3rd first ((1-3)th) sidewall  211   c  opposite to the (1-2)th sidewall  211   b , and a (1-1)th sidewall  211   a  extending from the (1-2)th sidewall  211   b  up to the (1-3)th sidewall  211   c . For example, the (1-2)th sidewall  211   b  may be positioned in an upper part (e.g., the +Y direction) of the electronic device  101 , and the (1-3)th sidewall  211   c  may be positioned in a lower part (e.g., the -Y direction) of the electronic device  101 . According to an embodiment, the (1-1)th sidewall  211   a  may be substantially perpendicular to the (1-2)th sidewall  211   b  and/or the (1-3)th sidewall  211   c . According to an embodiment, in a state in which the electronic device  101  is closed (e.g.,  FIG.  2   ), the (1-2)th sidewall  211   b  may face a (2-2)th sidewall  221   b  of the second housing  202 , and the (1-3)th sidewall  211   c  may face a (2-3)th sidewall  221   c  of the second housing  202 . According to an embodiment, the (1-1)th sidewall  211   a , the (1-2)th sidewall  211   b , and/or the (1-3)th sidewall  211   c  may be integrally configured with the first plate (e.g., the first plate  211  of  FIG.  4   ) or a slide cover  212 . According to another embodiment, the (1-1)th sidewall  211   a , the (1-2)th sidewall  211   b , and/or the (1-3)th sidewall  211   c  may be configured as separate housings and thus coupled or assembled. 
     According to an embodiment, the second housing  202  may include second sidewalls  221   a ,  221   b , and  221   c  for surrounding at least a part of the first housing  201 . According to an embodiment, the second sidewalls  221   a ,  221   b , and  221   c  may extend from a second plate (e.g., a second plate  221  of  FIG.  4   ) and/or a cover member (e.g., a cover member  222  of  FIG.  4   ). According to an embodiment, the second sidewalls  221   a ,  221   b , and  221   c  may include the (2-2)th sidewall  221   b , the (2-3)th sidewall  221   c  opposite to the (2-2)th sidewall  221   b , and a (2-1)th sidewall  221   a  extending from the (2-2)th sidewall  221   b  up to the (2-3)th sidewall  221   c . For example, the (2-2)th sidewall  221   b  may be positioned in the upper part (e.g., the +Y direction) of the electronic device  101 , and the (2-3)th sidewall  221   c  may be positioned in the lower part (e.g., the -Y direction) of the electronic device  101 . According to an embodiment, the (2-1)th sidewall  221   a  may be substantially perpendicular to the (2-2)th sidewall  221   b  and/or the (2-3)th sidewall  221   c . According to an embodiment, the (2-2)th sidewall  221   b  may face the (1-2)th sidewall  211   b , and the (2-3)th sidewall  221   c  may face the (1-3)th sidewall  211   c . For example, in a state in which the electronic device  101  is closed (e.g.,  FIG.  2   ), the (2-2)th sidewall  221   b  may cover at least a part of the (1-2)th sidewall  211   b , and the (2-3)th sidewall  221   c  may cover at least a part of the (1-3)th sidewall  211   c . 
     According to an embodiment, the second housing  202  may be configured in a shape in which one side (e.g., a front face) is opened to receive (or surround) at least a part of the first housing  201 . For example, the first housing  201  may be connected to the second housing  202  in a state of being at least partially covered by the (2-1)th sidewall  221   a , the (2-2)th sidewall  221   b , and the (2-3)th sidewall  221   c , and may slidingly move in a direction of the arrow ① while being guided by the second housing  202 . According to an embodiment, the cover member (e.g., the cover member  222  of  FIG.  4   ), the (2-1)th sidewall  221   a , the (2-2)th sidewall  221   b , and/or the (2-3)th sidewall  221   c  may be integrally configured. According to another embodiment, the cover member  222 , the (2-1)th sidewall  221   a , the (2-2)th sidewall  221   b , and/or the (2-3)th sidewall  221   c  may be configured as separate housings and thus coupled or assembled. 
     According to an embodiment, the second housing  202  may include a back plate  223 . According to an embodiment, the back plate  223  may configure at least a part of the external appearance of the electronic device  101 . For example, the back plate  223  may provide a decorative effect on the external appearance of the electronic device  101 . 
     According to an embodiment, the cover member  222  and/or the (2-1)th sidewall  221   a  may cover at least a part of the display  203 . For example, at least a part (e.g., the second display area A2) of the display  203  may be received in the second housing  202 , and the cover member  222  and/or the (2-1)th sidewall  221   a  may cover a part of the display  203  having been received in the second housing  202 . 
     According to an embodiment, the electronic device  101  may include the display  203 . For example, the display  203  may be a flexible display or a rollable display. According to an embodiment, at least a part (e.g., the second display area A2) of the display  203  may slidingly move, based on a sliding movement of the first housing  201 . According to an embodiment, the display  203  may include or be disposed adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and/or a digitizer configured to detect a magnetic field-type stylus pen. The configuration of the display  203  of  FIGS.  2  and  3    may be all or partly the same as the configuration of the display module  160  of  FIG.  1   . 
     According to an embodiment, the display  203  may include the first display area A1 and the second display area A2. According to an embodiment, the first display area A1 may be an area which is always visible from the outside. According to an embodiment, the first display area A1 may be an area which may not be positioned inside the housing  202 . According to an embodiment, the second display area A2 may extend from the first display area A1, and be inserted or received into the second housing  202  according to a sliding movement of the first housing  201 , or be visually exposed to the outside of the second housing  202 . According to an embodiment, the first display area A1 may be stably seated on a part (e.g., the first plate  211 ) of the first housing  201 . 
     According to an embodiment, the second display area A2 may move while being substantially guided by a multi-bar structure (e.g., the multi-bar structure  213  of  FIG.  4   ) mounted in the first housing  201 , and be thus received inside the second housing  202  or in a space formed between the first housing  201  and the second housing  202 , or may be visually exposed to the outside. According to an embodiment, the second display area A2 may move based on a sliding movement in a width direction (e.g., a direction indicated by the arrow ①) of the first housing  201 . For example, at least a part of the second display area A2 may be unfolded or rolled together with the multi-bar structure  213 , based on the sliding movement of the first housing  201 . 
     According to an embodiment, when viewed from the top of the first housing  201 , if the first housing  201  moves from a closed state to an opened state, the second display area A2 may be gradually exposed to the outside of the housing  202  to form a substantially flat surface together with the first display area A1. In an embodiment, the second display area A2 may be at least partially received in the first housing  201  and/or the second housing  202 . 
     According to an embodiment, the electronic device  101  may include at least one key input device  241 , a connector hole  243 , audio modules  247   a  and  247   b , or camera modules  249   a  and  249   b . Although not shown, the electronic device  101  may further include an indicator (e.g., an LED device) or various sensor modules. The configuration of the audio module  247   a  and  247   b  and the camera modules  249   a  and  249   b  of  FIGS.  2  and  3    may be all or partly the same as the configuration of the audio module  170  and the camera module  180  of  FIG.  1   . 
     According to an embodiment, the key input device  241  may be positioned in one area of the second housing  202 . According to an external appearance and a use state, the electronic device  101  may be designed such that the illustrated key input device  241  is omitted or additional key input device(s) are included. According to an embodiment, the electronic device  101  may include a key input device not shown, for example, a home key button, or a touch pad disposed around the home key button. According to an embodiment (not shown), at least a part of the key input device  241  may be disposed on the second housing  202 . 
     According to an embodiment, the key input device  241  may be used as a driving structure for automatically or semi-automatically providing a slide-in-out operation of the display  203 . For example, when a user presses an open trigger button (e.g., the key input device  241  of  FIG.  2   ) exposed to the outside of the electronic device  101 , the display  203  may automatically slide in or slide out (automatic operation). For another example, when a user moves the display  203  of the electronic device  101  up to a specified section and slides the same out, the remaining section may be completely slid out by the force of an elastic member (e.g., an elastic member  300  of  FIG.  5   ) mounted in the electronic device  101  (semi-automatic operation). For example, a state of the electronic device  101  may be changed from a closed state (e.g.,  FIG.  2   ) to an opened state (e.g.,  FIG.  3   ) by being slid out. A slide-in operation of the electronic device  101  may also be performed to correspond to the slide-out operation. 
     According to an embodiment, the connector hole  243  (which may be omitted according to an embodiment) may receive a connector (e.g., a USB connector) for transmitting or receiving power and/or data to or from an external electronic device. Although not shown, the electronic device  101  may include a plurality of connector holes  243 , and one or more of the plurality of connector holes  243  may function as a connector hole for transmitting or receiving an audio signal to or from an external electronic device. In the illustrated embodiment, the connector holes  243  are disposed in the (2-3)th sidewall  221   c , but the disclosure is not limited thereto, the connector holes  243  or a connector hole not shown may be disposed on the (2-1)th sidewall  221   a  or the (2-2)th sidewall  221   b . 
     According to an embodiment, the audio modules  247   a  and  247   b  may include at least one speaker hole  247   a  and  247   b  and/or at least one microphone hole. At least one of the speaker holes  247   a  and  247   b  may be provided as an external speaker hole. At least one of the speaker holes  247   a  and  247   b  may be provided as a receiver hole for a voice call. The electronic device  101  may include a microphone for acquiring sound, and the microphone may acquire external sound of the electronic device  101  through the microphone hole. According to an embodiment, the electronic device  101  may include a plurality of microphones to sense a direction of sound. According to an embodiment, the electronic device  101  may include an audio module in which the speaker holes  247   a  and  247   b  and the microphone hole are implemented as one hole, or may include a speaker (e.g., a piezo speaker) from which the speaker hole  247   a  is excluded. 
     According to an embodiment, the camera modules  249   a  and  249   b  may include a first camera module  249   a  and/or a second camera module  249   b . The second camera module  249   b  may be positioned in the second housing  202  and may photograph a subject in a direction opposite to the first display area A1 of the display  203 . The electronic device  101  may include the multiple camera modules  249   a  and  249   b . For example, the electronic device  101  may include at least one of a wide-angle camera, a telephoto camera, or a close-up camera, and include an infrared projector and/or an infrared receiver according to an embodiment, so as to measure a distance to a subject. The camera modules  249   a  and  249   b  may include one or more lenses, an image sensor, and/or an image signal processor. The electronic device  101  may further include another camera module (e.g., a front camera) (e.g., the first camera module  249   a ) configured to photograph a subject in an opposite direction of the second camera module  249   b . For example, the first camera module  249   a  may be disposed around the first display area A1 or in an area overlapping the first display area A1, and when the first camera module  249   a  is disposed in an area overlapping the display  203 , the first camera module  249   a  may photograph a subject through the display  203 . 
     According to an embodiment, an indicator (e.g., an LED device) of the electronic device  101  may be disposed in the first housing  201  and/or the second housing  202 , and may include a light-emitting diode to provide state information of the electronic device  101  via a visual signal. A sensor module (e.g., the sensor module  176  of  FIG.  1   ) of the electronic device  101  may generate an electrical signal or data value corresponding to an external environment state or an internal operating state of the electronic device  101 . The sensor module may include, for example, a proximity sensor, a fingerprint sensor, or a biometric sensor (e.g., an iris/face recognition sensor or an HRM sensor). In an embodiment, the electronic device  101  may further include at least one of a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a temperature sensor, a humidity sensor, or an illuminance sensor. The configuration of the display  203 , the audio modules  247   a  and  247   b , and the camera modules  249   a  and  249   b  of  FIGS.  2 A and  2 B  may be all or partly the same as the configuration of the display module  160 , the audio module  170 , and the camera module  180  of  FIG.  1   . 
       FIG.  4    is an exploded perspective view of an electronic device, according to one of an embodiment of the disclosure. 
     Referring to  FIG.  4   , the electronic device  101  may include the first housing  201 , the second housing  202 , the display  203 , and the multi-bar structure  213 . A part (e.g., the second display area A2) of the display  203  may be received in the electronic device  101  while being guided by the multi-bar structure  213 . The configuration of the first housing  201 , the second housing  202 , and the display  203  of  FIG.  4    may be all or partly the same as the configuration of the first housing  201 , the second housing  202 , and the display  203  of  FIG.  2    and/or 3. 
     According to an embodiment, the first housing  201  may include a first plate  211  and a slide cover  212 . The first plate  211  and the slide cover  212  may linearly reciprocate in one direction (e.g., the direction of the arrow ① in  FIG.  2   ) while being guided by the second housing  202 . According to an embodiment, the first plate  211  may slidingly move with respect to the second housing  202  together with the slide cover  212 . For example, at least a part of the display  203  and/or at least a part of the multi-bar structure  213  may be disposed between the first plate  211  and the slide cover  212 . 
     According to an embodiment, the first plate  211  may support at least a part (e.g., the second display area A2) of the display  203 . For example, the first plate  211  may include a curved surface  250 , and at least a part of the second display area A2 of the display  203  may be positioned on the curved surface  250 . According to an embodiment, the first plate  211  may be a display support bar (DSB). 
     According to an embodiment, the slide cover  212  may protect the display  203  positioned on the first plate  211 . For example, the slide cover  212  may surround at least a part of the display  203 . At least a part of the display  203  may be positioned between the first plate  211  and the slide cover  212 . According to an embodiment, the first plate  211  and the slide cover  212  may be formed of a metal material and/or a non-metal (e.g., a polymer) material. 
     According to an embodiment, the first housing  201  may include a guide rail  215 . According to an embodiment, the guide rail  215  may be connected to the first plate  211  and/or the slide cover  212 . For example, the guide rail  215  may slidingly move with respect to the second housing  202  together with the first plate  211  and the slide cover  212 . 
     According to an embodiment, the electronic device  101  may include the multi-bar structure  213 . According to an embodiment, the multi-bar structure  213  may support the display  203 . For example, the multi-bar structure  213  may be connected to the display  203 . According to an embodiment, at least a part of the display  203  and the multi-bar structure  213  may be positioned between the first plate  211  and the slide cover  212 . According to an embodiment, as the first housing  201  slidingly moves, the multi-bar structure  213  may move with respect to the second housing  202 . In a closed state (e.g.,  FIG.  2   ), most of the multi-bar structure  213  may be received inside the second housing  202 . According to an embodiment, at least a part of the multi-bar structure  213  may move to correspond to the curved surface  250  positioned at an edge of the first plate  211 . 
     According to an embodiment, the multi-bar structure  213  may include multiple rods  214  (or bars). The multiple rods  214  may extend in a straight line to be disposed in parallel to a rotation axis R formed by the curved surface  250 , and may be arranged in a direction (e.g., a direction in which the first housing  201  slidingly moves) perpendicular to the rotation axis R. 
     According to an embodiment, each of the rods  214  may orbit around another adjacent rod  214  while maintaining a parallel state with the other adjacent rod  214 . According to an embodiment, as the first housing  201  slidingly moves, the multiple rods  214  may be arranged to form a curved shape or be arranged to form a planar shape. For example, as the first housing  201  slidingly moves, a part of the multi-bar structure  213  which faces the curved surface  250  may form a curved surface, and another part of the multi-bar structure  213  which does not face the curved surface  250  may form a flat surface. According to an embodiment, the second display area A2 of the display  203  may be mounted on or supported by the multi-bar structure  213 , and in an opened state (e.g.,  FIG.  3   ), at least a part of the second display area A2 may be exposed to the outside of the second housing  202  together with the first display area A1. In a state in which the second display area A2 is exposed to the outside of the second housing  202 , the multi-bar structure  213  may support or maintain the second display area A2 in a flat state by forming a substantially flat surface. According to an embodiment, the multi-bar structure  213  may be replaced with a flexible integral support member (not shown). According to an embodiment, the multi-bar structure  213  may be a display support multi-bar or a multi-joint hinge structure. 
     According to an embodiment, the guide rail  215  may guide the movement of the multiple rods  214 . According to an embodiment, the guide rail  215  may include an upper guide rail adjacent to a (1-2)th sidewall (e.g., the (1-2)th sidewall  211   b  of  FIG.  3   ), and a lower guide rail adjacent to a (1-3)th sidewall (e.g., the (1-3)th sidewall  211   c  of  FIG.  3   ). According to an embodiment, the guide rail  215  may include a groove-shaped rail  215   a  disposed on the inner side of the guide rail  215 , and a protruding portion  215   b  positioned on the inner side of the guide rail. At least a part of the protruding portion  215   b  may be surrounded by the rail  215   a . According to an embodiment, the multi-bar structure  213  may be positioned between the upper guide rail and the lower guide rail, and may move while maintaining an insertion-coupling state with the upper guide rail and the lower guide rail. For example, upper end portions and/or lower end portions of the multiple rods  214  may slidingly move along the rail  215   a  while being sandwiched in the rail  215   a . 
     According to an embodiment, when the electronic device  101  is opened (e.g., a slide-out operation), the size of an area where the display  203  is exposed to the outside may be increased. For example, by driving (e.g., driving for display slide-out) of a motor (e.g., a motor structure  261  of  FIG.  5   ) and/or by an external force provided by a user, the first plate  211  connected to the motor structure  261  may slide out, and the protruding portion  215   b  inside the guide rail  215  may push the upper end portions and/or the lower end portions of the multiple rods  214 . Accordingly, the display  203  having been received between the first plate  211  and the slide cover  212  may be extended to the front. 
     According to an embodiment, when the electronic device  101  is closed (e.g., a slide-in operation), the size of an area where the display  203  is exposed to the outside may be reduced. For example, by driving (e.g., driving for display slide-in) of a motor (e.g., the motor structure  261  of  FIG.  5   ) and/or by an external force provided by a user, the first plate  211  on which the motor is disposed may slide in, and an outer portion (e.g., a portion other than the protruding portion  215   b ) of the guide rail  215  may push the upper end portions and/or lower end portions of the multiple rods  214 . Accordingly, the display  203  having been extended may be received between the first plate  211  and the slide cover  212 . 
     According to an embodiment, the second housing  202  may include a second plate  221 , the cover member  222 , and the back plate  223 . According to an embodiment, the second plate  221  may support at least a part (e.g., the first display area A1) of the display  203 . The first plate  221  may be disposed between the display  203  and a circuit board  204 . According to an embodiment, the cover member  222  may receive components (e.g., a battery  289  (e.g., the battery  189  of  FIG.  1   ) and the circuit board  204 ) of the electronic device  101 , and may protect the components of the electronic device  101 . According to an embodiment, the cover member  222  may be referred to as a book cover. 
     According to an embodiment, there may be multiple boards received in the second housing  202 . A processor, a memory, and/or an interface may be mounted on the circuit board  204  which is a main board. The processor may include, for example, one or more of a central processing unit, an application processor, a graphic processing unit, an image signal processor, a sensor hub processor, or a communication processor. According to an embodiment, the circuit board  204  may include a flexible printed circuit board type radio frequency cable (FRC). For example, the circuit board  204  may be disposed in the cover member  222 , and may be electrically connected to an antenna module (e.g., the antenna module  197  of  FIG.  1   ) and a communication module (e.g., the communication module  190  of  FIG.  1   ). 
     According to an embodiment, the memory may include, for example, a volatile memory or a nonvolatile memory. 
     According to an embodiment, the interface may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and/or an audio interface. For example, the interface may electrically or physically connect the electronic device  101  to an external electronic device, and include a USB connector, an SD card/MMC connector, or an audio connector. 
     According to an embodiment, the electronic device  101  may further include a separate sub-circuit board  290  spaced apart from the circuit board  240  within the second housing  202 . The sub-circuit board  290  may be electrically connected to the circuit board  240  through a flexible board  291 . The sub-circuit board  290  may be electrically connected to the battery  289  or electrical components disposed at an end portion of the electronic device  101 , such as a speaker and/or a SIM socket, so as to transmit a signal and power. 
     According to an embodiment, the battery  289  is a device for supplying power to at least one component of the electronic device  101 , and may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell. For example, at least a part of the battery  289  may be disposed substantially on the same plane as the circuit board  204 . The battery  289  may be integrally disposed inside the electronic device  101  or may be disposed to be detachable from the electronic device  101 . 
     According to an embodiment, the battery  289  may be configured as one integrated battery or may include multiple separable batteries (e.g., a first battery  289   a  and a second battery  289   b ). According to an embodiment, when an integrated battery is positioned on the first plate  211 , the integrated battery may move along with a sliding movement of the first plate  211 . According to an embodiment, when the integrated battery is positioned on the second plate  221 , the integrated battery may be fixedly disposed on the second plate  221 , regardless of a sliding movement of the first plate  211 . For another example, when the first battery  289   a  among the separable batteries is positioned on the first plate  211  and the second battery  289   b  among the separable batteries is fixed on the second plate  221 , only the first battery  289   a  may move along with a sliding movement of the first plate  211 . 
     According to an embodiment, the back plate  223  may substantially configure the second housing  202  or at least a part of the external appearance of the electronic device  101 . For example, the back plate  223  may be coupled to the outer surface of the cover member  222 . According to an embodiment, the back plate  223  may be integrally configured with the cover member  222 . According to an embodiment, the back plate  223  may provide a decorative effect on the external appearance of the electronic device  101 . The second plate  221  and the cover member  222  may be manufactured using at least one of a metal or a polymer, and the back plate  223  may be manufactured using at least one of a metal, glass, synthetic resin, or ceramic. According to an embodiment, the second plate  221 , the cover member  222 , and/or the back plate  223  may be at least partially (e.g., an auxiliary display area) made of a material which transmits light. For example, in a state in which a part (e.g., the second display area A2) of the display  203  is received inside the electronic device  101 , the electronic device  101  may output visual information by using the second display area A2. The auxiliary display area may be a portion of the second plate  221 , the cover member  222 , and/or the back plate  223 , in which the display  203  received in the second housing  202  is positioned. 
     According to an embodiment, the electronic device  101  may include a power transmission structure  260  for a sliding movement of the electronic device  101 . The power transmission structure  260  may include a motor structure  261  for generating power, and a gear structure (e.g., a pinion gear  262  and/or a rack gear  263  of  FIG.  5   ), at least a part of which is configured to move based on a driving force generated in the motor structure  261 . According to an embodiment, the rack gear  263  may be connected to the first housing  201  (e.g., the first plate  211 ). The pinion gear  262  may rotate based on the driving force generated in the motor structure  261 , and transmit at least a part of the driving force generated in the motor structure  261  to the rack gear  263 . For example, the pinion gear  262  may be connected to the motor structure  261  and mesh with at least a part of the rack gear  263 . 
     According to an embodiment, the electronic device  101  may include an elastic member  300 . According to an embodiment, the elastic member  300  may be compressed or tensioned based on a sliding movement of the electronic device  101 . According to an embodiment, the elastic member  300  may reduce a force required to open the electronic device  101 . When the display  203  is unfolded, the elastic member  300  may provide a force (e.g., an elastic force) for offsetting at least a part of a repulsive force of the display  203  and/or a frictional force between components (e.g. the multi-bar structure  213  and/or the guide rail  215 ) of the electronic device  101 . For example, the elastic member  300  offsets a repulsive force generated when the display  203  is unfolded, so that user convenience may be increased when the electronic device  101  is opened. 
     According to an embodiment, the elastic member  300  may include multiple (e.g., two) elastic members. For example, the elastic member  300  may include a first elastic member  310 , and a second elastic member  320  arranged in parallel to the first elastic member  310 . 
     The electronic device  101  illustrated in  FIGS.  2  to  4    has a rollable or slidable external appearance, but the disclosure is not limited thereto. According to an embodiment (not shown), at least a part of the illustrated electronic device may be rolled into a scroll shape. 
     Referring to  FIGS.  2 ,  3  and  4   , when viewed from the front of the electronic device  101 , the display  203  may extend in a right direction of the electronic device  101 . However, a structure of the electronic device  101  is not limited thereto. For example, according to an embodiment, the display  203  may extend in a left direction of the electronic device  101 . According to an embodiment, the display  203  may extend in a longitudinal direction of the electronic device  101 . 
       FIG.  5    is a front view of an electronic device in a closed state, according to an embodiment of the disclosure, and  FIG.  6    is a front view of an electronic device in an opened state, according to an embodiment of the disclosure. 
     Referring to  FIGS.  5  and  6   , the electronic device  101  may include the first housing  201 , the second housing  202 , the power transmission structure  260 , the elastic member  300 , and a sensor module  400 . The configuration of the first housing  201 , the second housing  202 , the power transmission structure  260 , and the elastic member  300  of  FIGS.  5  and  6    may be all or partly the same as the configuration of the first housing  201 , the second housing  202 , the power transmission structure  260 , and the elastic member  300  of  FIG.  4   . The configuration of the sensor module  400  of  FIGS.  5  and  6    may be all or partly the same as the configuration of the sensor module  176  of  FIG.  1   . 
     According to an embodiment, the first housing  201  may include a protruding area  216  for compressing the elastic member  300 . For example, the protruding area  216  may be in contact with one end portion of the elastic member  300  to compress the elastic member  300 . According to an embodiment, the protruding area  216  may be connected to a housing different from the elastic member  300 . For example, the protruding area  216  may be connected to the first housing  201 , and the elastic member  300  may be connected to the second housing  202 . According to an embodiment (not shown), the elastic member  300  may be connected to the first housing  201  (e.g., the first plate  211 ), and the protruding area  216  may be connected to the second housing  202 . The protruding area  216  may be a contact area and/or a locking area. 
     According to an embodiment, the protruding area  216  may be connected to the first housing  201 . For example, the protruding area  216  may extend or protrude from the first plate  211 . According to an embodiment, the protruding area  216  may be integrally configured with the first plate  211 . According to an embodiment, the protruding area  216  may surround at least a part of a shaft  500 . For example, the protruding area  216  may include a first protruding area  216   a  which surrounds at least a part of a first shaft  510  and faces a first elastic member  310 , and a second protruding area  216   b  which surrounds at least a part of a second shaft  520  and faces a second elastic member  320 . 
     According to an embodiment, the second housing  202  may include an upper sidewall  224   a  and a lower sidewall  224   b  which configure at least a part of the external appearance of the electronic device  101 . The configuration of the upper sidewall  224   a  may be all or partly the same as the configuration of the (2-2)th sidewall  221   b  of  FIGS.  2  and  3   , and the configuration of the lower sidewall  224   b  may be all or partly the same as the configuration of the (2-3)th sidewall  221   c  of  FIGS.  2  and  3   . 
     According to an embodiment, the second housing  202  may include reception spaces  225   a  and  225   b  for receiving the elastic member  300  and/or the sensor module  400 . According to an embodiment, the reception spaces  225   a  and  225   b  may include a first reception space  225   a  adjacent to the upper sidewall  224   a , and a second reception space  225   b  adjacent to the lower sidewall  224   b . According to an embodiment, the reception spaces  225   a  and  225   b  may be referred to as a groove, a recess, or an empty space formed in the cover member  222 . 
     According to an embodiment, the elastic member  300  may be compressed based on a sliding movement of the electronic device  101 . For example, one end portion of the elastic member  300  may be connected to the cover member  222  of the second housing  202 , and the other end portion of the elastic member  300  may be in contact with the protruding area  216 , based on a sliding movement of the first housing  201  and/or the electronic device  101 . When the movement of the elastic member  300  is restricted by the protruding area  216 , the elastic member  300  may be compressed. According to an embodiment, the elastic member  300  may be compressed along a width direction (e.g., a sliding direction (the X-axis direction) of the first housing  201 ). According to an embodiment, the elastic member  300  may be a spring or a coil. An elastic modulus k (e.g., a compression spring coefficient) of the elastic member  300  may satisfy Equation 1 below. 
     
       
         
           
             k 
             = 
             
               
                 G 
                 
                   d 
                   4 
                 
               
               
                 8 
                 N 
                 a 
                 
                   D 
                   3 
                 
               
             
           
         
       
     
     In [Equation 1], G may be referred to as a transverse elastic modulus (N/mm 2 ), Na may be referred to as an effective number of turns, D may be referred to as an average diameter of the elastic member  300 , and d may be referred to as a diameter of a material (e.g., a spring). The average diameter D may be interpreted as an average value of an inner diameter and an outer diameter of the elastic member  300 . The diameter (d) of the material may be interpreted as a diameter or thickness of the spring. According to an embodiment, the elastic member  300  may be referred to, for example, as an elastic structure, a compression member, or a compression structure. 
     According to an embodiment, at least a part of the elastic member  300  may be disposed in the reception spaces  225   a  and  225   b  of the cover member  222 . For example, the first elastic member  310  may be disposed in the first reception space  225   a , and the second elastic member  320  may be disposed in the second reception space  225   b . According to an embodiment, the elastic member  300  may include the first elastic member  310  disposed in the first reception space  225   a , and the second elastic member  320  disposed in the second reception space  225   b . According to an embodiment (not shown), when one elastic member  300  is used, the length of the elastic member  300  is required to be increased. When the length of the elastic member  300  is increased, a compressive force of the elastic member  300  is increased, and may exceed resolution which is sensible by the sensor module  400 . 
     According to an embodiment, the first elastic member  310  may include a first end portion  310   a  connected to a first sensor module  410 , and a second end portion  310   b  which is opposite the first end portion  310   a  and faces the first protruding area  216   a . The second elastic member  320  may include a third end portion  320   a  connected to a second sensor module  420 , and a fourth end portion  320   b  which is opposite the third end portion  320   a  and faces the second protruding area  216   b . 
     According to an embodiment, the elastic member  300  may be connected to the cover member  222  of the second housing  202  using the sensor module  400 . For example, the sensor module  400  may be disposed on inner walls  226   a  and  226   b  defining at least a part of the reception spaces  225   a  and  225   b  of the cover member  222 . According to an embodiment, the elastic member  300  may be connected to the sensor module  400 . 
     According to an embodiment, the first elastic member  310  may be compressed in a direction different from that of the second elastic member  320 . For example, in a state in which the electronic device  101  is fully closed (e.g.,  FIG.  5   ), the first elastic member  310  may be compressed and the second elastic member  320  may be fully unfolded. In a state in which the electronic device  101  is fully opened (e.g.,  FIG.  6   ), the first elastic member  310  may be fully unfolded and the second elastic member  320  may be compressed. According to an embodiment, when the first housing  201  slidingly moves in a first direction (the +X direction), the second elastic member  320  may come into contact with the second protruding area  216   b  to be compressed. When the first housing  201  moves in a second direction (the -X direction), the first elastic member  310  may come into contact with the first protruding area  216   a  to be compressed. 
     According to an embodiment, the sensor module  400  may sense a pressure provided by the elastic member  300 . For example, the sensor module  400  may include a pressure sensor or a pressure gauge, and may sense a force and/or pressure transmitted from one end portion (e.g., the first end portion  310   a  or the third end portion  320   a ) of the elastic member  300 . According to an embodiment, the sensor module  400  may include a strain gauge. 
     According to an embodiment, the sensor module  400  may be disposed in the second housing  202 . For example, the sensor module  400  may be connected to the cover member  222 . For example, the first sensor module  410  may be disposed on a first inner wall  226   a  configuring the first reception space  225   a , and the second sensor module  420  may be disposed on a second inner wall  226   b  configuring the second reception space  225   b . According to an embodiment, the sensor module  400  may be disposed between the elastic member  300  and the cover member  222 . 
     According to an embodiment, the electronic device  101  may include the shaft  500  for guiding the movement of the elastic member  300 . For example, at least a part of the shaft  500  may be surrounded by the elastic member  300 . The shaft  500  may extend along a sliding direction (e.g., the X-axis direction) of the electronic device  101 , and the elastic member  300  may be compressed or tensioned along the shaft  500 . According to an embodiment, the shaft  500  may include the first shaft  510  for guiding the movement of the first elastic member  310 , and the second shaft  520  for guiding the movement of the second elastic member  320 . The first shaft  510  may be disposed in the first reception space  225   a , and connected to the first inner wall  226   a . The second shaft  520  may be disposed in the second reception space  225   b , and connected to the second inner wall  226   b . According to an embodiment, the first shaft  510  may be connected to the cover member  222  of the second housing  202  at a point adjacent to the upper sidewall  224   a , and the second shaft  520  may be connected to the cover member  222  of the second housing  202  at a point adjacent to the lower sidewall  224   b . The elastic member  300  slidingly moves along the shafts  510  and  520  at the points adjacent to the upper sidewall  224   a  and the lower sidewall  224   b , and distortion of the electronic device  101  may be reduced. 
     Referring to  FIGS.  5  and  6   , the first elastic member  310 , the first sensor module  410 , and the first shaft  510 , as components for sensing a pressure when the electronic device  101  slides in, may be manufactured as one part (e.g., a first module). The second elastic member  320 , the second sensor module  420 , and the second shaft  520 , as components for sensing a pressure when the electronic device  101  slides out, may be manufactured as one part (e.g., a second module). 
       FIG.  7    is a front view of an electronic device in a closed state, according to an embodiment of the disclosure, and  FIG.  8    is a front view of an electronic device in an opened state, according to an embodiment of the disclosure. 
     Referring to  FIGS.  7  and  8   , the electronic device  101  may include the first housing  201 , the second housing  202 , the power transmission structure  260 , the elastic member  300 , and the sensor module  400 . The configuration of the first housing  201 , the second housing  202 , the power transmission structure  260 , the elastic member  300 , and the sensor module  400  of  FIGS.  7  and  8    may be all or partly the same as the configuration of the first housing  201 , the second housing  202 , the power transmission structure  260 , the elastic member  300 , and the sensor module  400  of  FIGS.  5  and  6   . 
     According to an embodiment, the first housing  201  may include the protruding area  216  (e.g., the protruding area  216  of  FIGS.  5  and  6   ) for compressing the elastic member  300 . According to an embodiment, the first protruding area  216   a  may face the second protruding area  216   b . For example, the first protruding area  216   a  and the second protruding area  216   b  may be positioned in one reception space (e.g., a third reception space  225   c ). 
     According to an embodiment, the second housing  202  may include a reception space  225   c  for receiving the elastic member  300  and/or the sensor module  400 . According to an embodiment, the reception space  225   c  may include the third reception space  225   c  which receives the first elastic member  310 , the second elastic member  320 , the first sensor module  410 , and the second sensor module  420 . The third reception space  225   c  may be referred to as a groove, a recess, or an empty space formed in the cover member  222 . 
     According to an embodiment, the first elastic member  310  and the second elastic member  320  may be arranged along substantially the same axis. For example, the first elastic member  310  and the second elastic member  320  may be disposed in one reception space (e.g., the third reception space  225   c ). For example, the electronic device  101  may include a third shaft  530  disposed in the third reception space  225   c  and extending along a sliding movement direction (e.g., the X-axis direction) of the first housing  201 . At least a part of the third shaft  530  may be surrounded by the first elastic member  310  and the second elastic member  320 . According to an embodiment, the first elastic member  310  and the second elastic member  320  may be compressed or tensioned along the third shaft  530 . According to an embodiment, the third shaft  530  may be disposed between the first sensor module  410  and the second sensor module  420 . For example, one end portion of the third shaft  530  may face the first sensor module  410  and the other end portion thereof may face the second sensor module  420 . 
       FIGS.  9 A,  9 B,  9 C, and  10    are views illustrating a movement of an elastic member based on a sliding movement of an electronic device according to an embodiment of the disclosure. 
     For example,  FIGS.  9 A,  9 B, and  9 C  are views of the electronic device  101  of  FIG.  5    and/or 6 in which  FIG.  9 A  is a view of the electronic device  101  in a fully closed state (e.g.,  FIG.  2   ),  FIG.  9 C  is a view of the electronic device  101  in a fully opened state (e.g.,  FIG.  3   ), and  FIG.  9 B  is a view illustrating a state in which the first elastic member  310  and the second elastic member  320  are maximally tensioned (or extended).  FIG.  10    is a view illustrating structures of the elastic member  300  and the sensor module  400  of  FIG.  7    and/or 8. 
     Referring to  FIGS.  9 A,  9 B,  9 C, and  10   , the electronic device  101  may include the protruding area  216 , the elastic member  300 , the sensor module  400 , and the shaft  500 . The configuration of the protruding area  216 , the elastic member  300 , the sensor module  400 , and the shaft  500  of  FIGS.  9 A,  9 B,  9 C , and/or 10 may be all or partly the same as the configuration of the protruding area  216 , the elastic member  300 , the sensor module  400 , and the shaft  500  of  FIGS.  5 ,  6 ,  7 , and  8   . 
     According to an embodiment, the first elastic member  310  and the second elastic member  320  may be symmetrically compressed. According to an embodiment, the first elastic member  310  may be compressed when the electronic device  101  slidingly moves in a second direction (the -X direction) in which the electronic device  101  is closed, and the second elastic member  320  may be compressed when the electronic device  101  slidingly moves in a first direction (the +X direction) in which the electronic device  101  is opened. For example, the compressive strength of the first elastic member  310  may increase when the first housing  201  is moved in the second direction (the -X direction), and the compressive strength of the second elastic member  320  may increase when the first housing  201  is moved in the first direction (the +X direction). According to an embodiment, the first elastic member  310  may be maximally compressed when the electronic device  101  is fully closed, and the second elastic member  320  may be maximally compressed when the electronic device  101  is fully opened. 
     Referring to  FIG.  9 A , in a state in which the electronic device  101  is closed, the second end portion  310   b  of the first elastic member  310  may be compressed by a pressure provided in the first protruding area  216   a , and the fourth end portion  320   b  of the second elastic member  320  may be spaced apart from the second protruding area  216   b . Referring to  FIG.  9 C , in a state in which the electronic device  101  is fully opened, the second end portion  310   b  of the first elastic member  310  may be spaced apart from the first protruding area  216   a , and the fourth end portion  320   b  of the second elastic member  320  may be compressed by a pressure provided in the second protruding area  216   b .According to an embodiment, at least one of the first elastic member  310  and the second elastic member  320  may be at least partially compressed. For example, in a first state (e.g.,  FIG.  9 A ) or in a first section I1 of  FIG.  12   , at least a part of the first elastic member  310  may be compressed, and the second elastic member  320  may not be compressed. In a second state (e.g.,  FIG.  9 B ) or in a second section I2 of  FIG.  12   , at least a part of the first elastic member  310  and at least a part of the second elastic member  320  may be compressed. In a third state (e.g.,  FIG.  9 C ) or in a third section I3 of  FIG.  12   , the first elastic member  310  may not be compressed, and at least a part of the second elastic member  320  may be compressed. Referring to  FIG.  9 B , at least a part of the first elastic member  310  may overlap at least a part of the second elastic member  320 . For example, a first imaginary line L1 on which the second end portion  310   b  of the first elastic member  310  is positioned may be spaced apart by a first distance d1 in the second direction (the -X direction) with respect to a second imaginary line L2 on which the fourth end portion  320   b  of the second elastic member  320  is positioned. According to an embodiment, when the first elastic member  310  and the second elastic member  320  are respectively maximally tensioned (or extended and/or stretched), at least a part of the first elastic member  310  may be positioned in the same section as at least a part of the second elastic member  320 . According to an embodiment, the magnitude of a pressure provided by the elastic member  300  to the sensor module  400  may be changed based on the size of the first distance d1. For example, at least a part of the first elastic member  310  and/or at least a part of the second elastic member  320  may be arranged or configured to be compressed, and the sensor module  400  may receive a pressure equal to or greater than resolution of the sensor module  400  from the first elastic member  310  and/or the second elastic member  320 . 
     Referring to  FIG.  10   , the protruding area  216  may be positioned such that at least one elastic member (e.g., the first elastic member  310  and/or the second elastic member  320 ) is compressed. For example, a second distance d2 between a third imaginary line L3 on which the second protruding area  216   b  is positioned and a fourth imaginary line L4 on which the first protruding area  216   a  is positioned may be arranged such that at least one of the first elastic member  310  and the second elastic member  320  is compressed. 
     According to an embodiment, the magnitude of a pressure provided by the elastic member  300  to the sensor module  400  may be changed based on the size of the second distance d2. For example, the first protruding area  216   a  and the second protruding area  216   b  may be arranged to compress at least a part of the first elastic member  310  and/or at least a part of the second elastic member  320 , and the sensor module  400  may receive a pressure equal to or greater than resolution of the sensor module  400  from the first elastic member  310  and/or the second elastic member  320 . 
     The state in  FIG.  9 B  may be a state in which the electronic device  101  is partially opened. However, for explanation, in  FIG.  9 B , the maximally tensioned first elastic member  310  and the maximally tensioned second elastic member  320  are shown, but in a state in which the electronic device  101  is assembled, a state in which the first elastic member  310  is maximally tensioned and a state in which the second elastic member  320  is maximally tensioned may not exist simultaneously. For example,  FIG.  9 B  is a view illustrating a state in which the first elastic member  310  and the second elastic member  320  are maximally tensioned, respectively, and when the electronic device  101  slidingly moves, the first elastic member  310  and/or the second elastic member  320  may be compressed by receiving a pressure from the protruding area  216 . 
       FIG.  11    is a flowchart illustrating an operation of an electronic device, according to an embodiment of the disclosure.  FIG.  12    is a view illustrating a pressure value detected by a sensor module, based on a sliding distance, according to an embodiment of the disclosure.  FIG.  13    is a view illustrating a pressure sensor in which an elastic modulus is changed, according to an embodiment of the disclosure. 
     Referring to  FIG.  11   , operation  1000  of the electronic device  101  may include operation  1010  of sensing a pressure provided by the elastic member  300  by using the sensor module  400 , operation  1020  of determining a sliding distance of the electronic device  101 , based on the sensed pressure, and/or operation  1030  of adjusting a size of an image output from the display  203 . The configuration of the electronic device  101 , the display  203 , the elastic member  300 , and the sensor module  400  of  FIG.  11    may be all or partly the same as the configuration of the electronic device  101 , the display  203 , the elastic member  300 , and the sensor module  400  of  FIG.  3    and/or  FIG.  5   . 
     According to an embodiment, the sensor module  400  may perform the operation  1010  of sensing a pressure provided by the elastic member  300 . For example, the sensor module  400  may include a pressure sensor or a pressure gauge, and may sense a force and/or pressure transmitted from one end portion (e.g., the first end portion  310   a  or the third end portion  320   a ) of the elastic member  300 . According to an embodiment, the sensor module  400  may include a strain gauge. 
     According to an embodiment, a processor (e.g., the processor  120  of  FIG.  1   ) may perform the operation  1020  of determining a sliding distance (or a sliding movement distance) of the electronic device  101 , based on the pressure obtained by the sensor module  400 . The slide distance may be referred to as the distance of the first housing  201  with respect to the second housing  202  . 
     Referring to  FIG.  12   , the processor  120  may determine a sliding distance of the electronic device  101 , based on different pressure sensors for each section. For example, the processor  120  may determine a sliding distance, based on a first pressure P1 obtained by a first sensor module (e.g., the first sensor module  410  of  FIGS.  5  or  7   ) in a first section I1, and may determine a sliding distance, based on a second pressure P2 obtained using a second sensor module (e.g., the second sensor module  420  of  FIGS.  5  or  7   ) in a second section I2. The first pressure P1 may be referred to, for example, as a pressure value of a first elastic member (e.g., the first elastic member  310  of  FIGS.  5  or  7   ) sensed by the first sensor module  410 , and the second pressure P2 may be referred to, for example, as a pressure value of a second elastic member (e.g., the second elastic member  320  of  FIGS.  5  or  7   ) sensed by the second sensor module  420 . The first section I1 may be referred to, for example, as a section in which a pressure is sensed by the first sensor module  410  and a pressure is not sensed by the second sensor module  420 . The second section I2 may be referred to, for example, as a section in which a pressure is sensed by the second sensor module  420  and a pressure is not sensed by the first sensor module  410 . For example, the first section I1 may be a section from a state in which the electronic device  101  is closed to a state in which the electronic device  101  is opened for a predetermined section(e.g., slide distance until the second pressure P2 is sensed), and the second section I2 may be interpreted as a section from a state in which the electronic device  101  is opened for a predetermined section (e.g., slide distance at which the first pressure P1 is not sensed)to a state in which the electronic device  101  is fully opened. 
     According to an embodiment, the processor  120  may determine a sliding distance of the electronic device  101 , based on at least one of the first pressure P1 obtained by the first sensor module  410  or the second pressure P2 obtained by the second sensor module  420  in a third section I3. For example, the third section I3 may be a section in a state in which the electronic device  101  is opened for a predetermined section (or a section in a state in which the electronic device  101  is closed for a predetermined section). According to an embodiment, the processor  120  may determine a sliding distance of the electronic device  101 , based on the greater pressure among the first pressure P1 and the second pressure P2 in the third section I3. According to an embodiment, the processor  120  may determine a sliding distance, based on the first pressure P1 sensed by the first sensor module  410 , when the electronic device  101  moves in an open direction in the third section I3, and may determine the sliding distance, based on the second pressure P2 sensed by the second sensor module  420 , when the electronic device  101  moves in a closed direction. 
     Referring to  FIG.  12   , the magnitude of a pressure of the elastic member  300  may be changed based on a position of a protruding area (e.g., the protruding area  216  and/or the elastic member  300  of  FIGS.  5  or  7   ). For example, as a first distance (e.g., the first distance d1 of  FIG.  9 B ) and/or a second distance (e.g., the second distance d2 of  FIG.  10   ) increases, a length in which the first elastic member  310  and the second elastic member  320  are compressed together may increase. According to an embodiment, the magnitude of a 1st first ((1-1)th) pressure P1-1 of an electronic device (e.g., the electronic device  101  of  FIG.  9 B ) in which the first elastic member  310  and the second elastic member  320  have a first distance d1 may be smaller than the magnitude of a 2nd first ((1-2)th) pressure P1-2 of the electronic device in which a distance between the first elastic member  310  and the second elastic member  320  is longer than the first distance d1 (not shown). 
     According to an embodiment, the magnitude of a 1st second ((2-1)th) pressure P2-1 of an electronic device (e.g., the electronic device  101  of  FIG.  10   ) in which the first protruding area  216   a  and the second protruding area  216   b  are disposed to have a second distance d2 may be smaller than the magnitude of a 2nd second ((2-2)th) pressure P2-2 of the electronic device in which a distance between the first protruding area  216   a  and the second protruding area  216   b  is longer than the first distance d1 (not shown). 
     According to an embodiment, the electronic device  101  may include a memory  130  (e.g., the memory  130  of  FIG.  1   ) configured to store sliding distance information corresponding to a pressure. The processor  120  may determine a sliding distance of the electronic device  101 , based on the sliding distance information. For example, the processor  120  may select sliding distance information corresponding to the pressure, and determine a sliding distance of the electronic device  101 , based on the selected sliding distance information. 
     Referring to  FIG.  13   , an elastic modulus of the elastic member  300  may be changed. For example, as compression and/or tension (or expansion) of the elastic member  300  is repeated, a transverse elastic modulus (G in Equation 1) of the elastic member  300  may be reduced. The processor (e.g., the processor  120  of  FIG.  1   ) may determine an elastic modulus of the elastic member  300  which is changed. 
     According to an embodiment, the processor  120  may determine a first state in which the electronic device  101  is fully opened or a second state in which the electronic device  101  is closed. For example, the sensor module  400  may include at least one magnetic body disposed in a housing (e.g., the housing  200  of  FIG.  2   ), and at least one magnetic sensor (e.g., a Hall effect sensor) configured to sense the magnetic body. The magnetic sensor may sense a magnetic body in a state in which the electronic device  101  is fully closed (e.g.,  FIG.  2   ) and/or in a state in which the electronic device  101  is fully opened (e.g.,  FIG.  3   ). The processor  120  may determine a pressure in a first state in which the electronic device  101  is fully opened or in a second state in which the electronic device  101  is fully closed, based on the magnetic sensor. 
     According to an embodiment, the memory  130  may store information on a pressure in an initial state (e.g., the (1-1)th pressure P1-1 and the (2-1)th pressure P2-1). According to an embodiment, the processor  120  may compare the (1-1)th pressure P1-1 and a 3rd first ((1-3)th) pressure P1-3 to determine an elastic modulus of the first elastic member  310 , and compare the (2-1)th pressure P2-1 and a 3rd second ((2-3)th) pressure P2-3 to determine an elastic modulus of the second elastic member  320 . The processor  120  may determine a sliding distance of the electronic device  101 , based on the determined elastic modulus. According to an embodiment, the processor  120  may adjust a sliding distance corresponding to the (1-3)th pressure P1-3, based on a difference between the (1-1)th pressure P1-1 and the (1-3)th pressure P1-3, and adjust a sliding distance corresponding to the (2-3)th pressure P2-3, based on a difference between the (2-1)th pressure P2-1 and the (2-3)th pressure P2-3. For example, in a case in which a measured value of the pressure (e.g., the (1-3)th pressure P1-3 and the (2-3)th pressure P2-3) in the first state or the second state is lower than a value of the pressure (e.g., the (1-1)th pressure P1-1 and the (2-1)th pressure P2-1) in the first state or the second state stored in the memory  130  by a predetermined value (e.g., 10%), the processor  120  may correct a sliding distance of the electronic device  101  to a sliding distance corresponding to a pressure value increased by the predetermined value (e.g., 10%) from a value of the (1-3)th pressure P1-3 sensed by the first sensor module  410 . 
     According to an embodiment, the processor  120  may perform the operation  1030  of changing a size of an image output from a display (e.g., the display  203  of  FIG.  3   ), based on a sliding distance of the electronic device  101 . For example, an area in which the display  203  is exposed to the outside of the electronic device  101  and a length of the elastic member  300  may be changed based on a sliding movement of the electronic device  101 . Due to the change in the length of the elastic member  300 , a pressure sensed by the sensor module  400  may be changed. The processor  120  may change a size of an image output from the display  203 , based on the pressure sensed by the sensor module  400 . For example, the processor  120  may increase a ratio of the width of the image output from the display  203  as a second display area (e.g., the second display area A2 of  FIG.  3   ) increases. 
       FIGS.  14  and  15    are perspective views of an electronic device including a moving block and a rail member, according to an embodiment of the disclosure. 
     Referring to  FIG.  14    and/or 15, the electronic device  101  may include the cover member  220 , the elastic member  300 , and the sensor module  400 . The configuration of the cover member  220 , the elastic member  300 , and the sensor module  400  of  FIG.  14    and/or  FIG.  15    may be all or partly the same as the configuration of the cover member  220 , the elastic member  300 , and the sensor module  400  of  FIG.  5   . 
     According to an embodiment, the electronic device  101  may include a moving block  610  configured to compress the elastic member  300 . For example, the moving block  610  may be in contact with one end portion of the elastic member  300 , so as to compress the elastic member  300 . According to an embodiment, the moving block  610  may be connected to a housing different from the elastic member  300 . For example, the moving block  610  may be connected to the first housing  201 , and the elastic member  300  may be connected to the second housing  202 . The moving block  610  may face one end portion of the elastic member  300 . The moving block  610  may move along a sliding direction (the X-axis direction) of the electronic device  101 , based on a sliding movement of the first housing  201 . According to an embodiment, the moving block  610  may move along a rail member  620 . According to an embodiment, the elastic member  300  may be disposed between the moving block  610  and the sensor module  400 , and compressed or tensioned based on a pressure transmitted from the moving block  610 . 
     According to an embodiment, the moving block  610  may include a first moving block  611  which faces a first elastic member (e.g., the first elastic member  310  of  FIG.  5   ), and a second moving block  612  which faces a second elastic member (e.g., the second elastic member  320  of  FIG.  5   ) and is disposed substantially parallel to the first moving block  611 . 
     According to an embodiment, the electronic device  101  may include the rail member  620  configured to guide the movement of the moving block  610  and/or the elastic member  300 . For example, the moving block  610  may move along the rail member  620  in a sliding movement direction (the X-axis direction) of the electronic device  101 . According to an embodiment, the rail member  620  may be connected to the cover member  222 . According to an embodiment, at least a part of the rail member  620  may be surrounded by the elastic member  300 . The rail member  620  may extend along a sliding direction (e.g., the X-axis direction) of the electronic device  101 , and the elastic member  300  may be compressed or tensioned along the rail member  620 . According to an embodiment, the rail member  620  may include a first rail member  621  configured to guide the movement of the first moving block  611  and the first elastic member  310 , and a second rail member  622  configured to guide the movement of the second moving block  612  and the second elastic member  320 . 
     According to an embodiment, the moving block  610  and the rail member  620  may be referred to as a linear guide structure (e.g., a linear motion guide (LM guide)). 
     An electronic device (for example, portable terminal) may include a display having a planar shape or planar and curved shapes. An electronic device including a display may have a limited display structure, thereby placing restrictions on implementing a screen larger than the size of the electronic device. There has thus been study regarding electronic devices including rollable displays. 
     In the case of an electronic device including a rollable display, the size of images displayed on the display or the size of the graphic display area may be changed based on the siding distance of the electronic device. Therefore, there has been study regarding a structure for reducing the sliding distance of the electronic device in order to adjust images displayed by the electronic device. 
     The sliding distance of the electronic device may be sensed using a magnetic field sensor (for example, Hall sensor) or capacitance sensor disposed in the electronic device. However, if the siding distance value is measured with a magnetic field sensor or inductive sensor, the accuracy of sliding distance measurement may be reduced by the magnet inside the electronic device and/or a magnetic field delivered from outside the electronic device. 
     The siding distance of the electronic device may be sensed using a touchscreen panel and a conductive member for providing signals to the integrated circuit of the touchscreen panel. However, use of the conductive member may accumulate stress in the display and may degrade the durability of the electronic device. 
     An embodiment of the disclosure may provide an electronic device capable of determining the sliding distance of the electronic device independently of external factors (for example, external magnetic fields). 
     Effects of the disclosure are not limited to the foregoing , and other unmentioned effects will be apparent without deviating from the idea and scope of the disclosure. 
     According to an embodiment of the disclosure, an electronic device may determine the sliding distance of the electronic device using an elastic member and a sensor module. The accuracy of sliding distance determination may be increased by determining the sliding distance of the electronic device based on a pressure delivered by the elastic member. 
     According to an embodiment of the disclosure, the electronic device  101  may include a housing (e.g., the housing  200  of  FIG.  3   ) including a first housing (e.g., the first housing  201  of  FIG.  3   ) and a second housing (e.g., the second housing  203  of  FIG.  3   ) configured to receive at least a part of the first housing and guide a sliding movement of the first housing, a display (e.g., the display  203  of  FIG.  3   ) configured to unfold based on the sliding movement of the first housing, an elastic member (e.g., the elastic member  300  of  FIG.  5   ) disposed in the housing and configured to be compressed based on the sliding movement of the first housing, a sensor module (e.g., the sensor module  400  of  FIG.  5   ) disposed in the housing and configured to sense a pressure provided by the elastic member, and a processor (e.g., the processor  120  of  FIG.  1   ) configured to determine a sliding distance of the first housing, based on the pressure sensed by the sensor module. 
     According to an embodiment, the elastic member may include a first elastic member (e.g., the first elastic member  310  of  FIG.  5   ) configured to be compressed when the first housing slidingly moves in a second direction, and a second elastic member (e.g., the second elastic member  320  of  FIG.  5   ) configured to be compressed when the first housing slidingly moves in a first direction opposite to the second direction, and the sensor module may include a first sensor (e.g., the first sensor module  410  of  FIG.  5   ) configured to sense a first pressure provided by the first elastic member, and a second sensor (e.g., the second sensor module  420  of  FIG.  5   ) configured to sense a second pressure provided by the second elastic member. 
     According to an embodiment, the second housing may include an upper sidewall (e.g., the upper sidewall  224   a  of  FIG.  5   ) and a lower sidewall (e.g., the lower sidewall  224   b  of  FIG.  5   ) parallel to the upper sidewall, and the electronic device may include a first shaft (e.g., the first shaft  510  of  FIG.  5   ) which is connected to the second housing at a point adjacent to the upper sidewall, and at least a part of which is surrounded by the first elastic member, and a second shaft (e.g., the second shaft  520  of  FIG.  5   ) which is connected to the second housing at a point adjacent to the lower sidewall, and at least a part of which is surrounded by the second elastic member. 
     According to an embodiment, the electronic device may further include a shaft (e.g., the third shaft  530  of  FIG.  7   ) which is connected to the second housing, at least a part of which is surrounded by the first elastic member and the second elastic member, and which is disposed between the first sensor and the second sensor. 
     According to an embodiment, the first housing may include a first plate (e.g., the first plate  211  of  FIG.  4   ) configured to support at least a part of the display, and a protruding area (e.g., the protruding area  216  of  FIG.  5   ) extending from the first plate and configured to be in contact with the elastic member. 
     According to an embodiment, the second housing may include a reception space (e.g., the reception spaces  225   a  and  225   b  of  FIG.  5   ) configured to receive the elastic member and the sensor module, and an inner wall (e.g., the inner walls  226   a  and  226   b  of  FIG.  5   ) surrounding the reception space, the sensor module may be disposed on the inner wall, and one end portion (e.g., the first end portion  310   a  and/or the third end portion  320   a  of  FIG.  5   ) of the elastic member may face the sensor module. 
     According to an embodiment, the electronic device may further include a motor (e.g., the motor structure  261  of  FIG.  5   ) disposed in the second housing, a rack gear (e.g., the rack gear  263  of  FIG.  5   ) connected to the first housing, and a pinion gear (e.g., the pinion gear  262  of  FIG.  5   ) connected to the motor structure and configured to engage with the rack gear. 
     According to an embodiment, the processor may be configured to change a size of an image output from the display, based on the pressure. 
     According to an embodiment, the electronic device may further include a memory (e.g., the memory  130  of  FIG.  1   ) configured to store sliding distance information corresponding to the pressure, and the processor may be configured to determine a sliding distance of the first housing, based on the sliding distance information. 
     According to an embodiment, the electronic device may further include at least one magnetic body (not shown) disposed in the housing, the sensor module may include at least one magnetic sensor configured to sense the magnetic body, the processor may be configured to determine a pressure in a first state (e.g.,  FIG.  3   ) in which the electronic device is fully opened or in a second state (e.g.,  FIG.  2   ) in which the electronic device is fully closed, based on the magnetic sensor, and the processor may be configured to determine an elastic modulus for determining the sliding distance corresponding to the pressure, based on at least one of the pressure in the first state or in the second state. 
     According to an embodiment, the electronic device may further include at least one shaft (e.g., the shaft  500  of  FIG.  5   ) connected to the second housing and configured to guide the movement of the elastic member. 
     According to an embodiment, the display may include a first display area (e.g., the first display area A1 of  FIG.  3   ) disposed on the second housing, and a second display area (e.g., the second display area A2 of  FIG.  3   ) extending from the first display area and configured to be visually exposed to the outside of the electronic device, based on a sliding movement of the first housing. 
     According to an embodiment, the processor may be configured to determine a sliding distance of the first housing, based on a first pressure (e.g., the first pressure P1 of  FIG.  12   ) sensed by a first sensor (e.g., the first sensor module  410  of  FIGS.  5  or  7   ) in a first section (e.g., the first section I1 of  FIG.  12   ), and to determine the sliding distance of the electronic device, based on a second pressure (e.g., the second pressure P2 of  FIG.  12   ) sensed by a second sensor (e.g., the second sensor module  420  of  FIGS.  5  or  7   ) in a second section (e.g., the second section I2 of  FIG.  12   ) different from the first section. 
     According to an embodiment, the electronic device may further include a moving block (e.g., the moving block  610  of  FIG.  15   ) configured to compress the elastic member, and a rail (e.g., the rail member  620  of  FIG.  15   ) which is configured to guide the movement of the moving block and at least a part of which is surrounded by the elastic member. 
     According to an embodiment of the disclosure, an electronic device (e.g., the electronic device  101  of  FIG.  2   ) may include a housing (e.g., the housing  200  of  FIG.  2   ) including a first housing (e.g., the first housing  201  of  FIG.  2   ) and a second housing (e.g., the second housing  202  of  FIG.  2   ) configured to receive at least a part of the first housing and guide a sliding movement of the first housing, a display (e.g., the display  203  of  FIG.  2   ) configured to unfold based on the sliding movement of the first housing, a first elastic member (e.g., the first elastic member  310  of  FIG.  5   ) connected to the second housing and configured to increase compressive strength when the first housing slidingly moves in a second direction (e.g., the -X direction of  FIG.  5   ), a second elastic member (e.g., the second elastic member  320  of  FIG.  5   ) connected to the second housing and configured to increase compressive strength when the first housing moves in a first direction (e.g., the second elastic member  320  of  FIG.  5   ) opposite to the second direction, a first sensor module (e.g., the first sensor module  410  of  FIG.  5   ) configured to sense a first pressure provided by the first elastic member, a second sensor module (e.g., the second sensor module  420  of  FIG.  5   ) configured to sense a second pressure provided by the second elastic member, and a processor (e.g., the processor  120  of  FIG.  1   ) configured to determine a sliding distance of the first housing, based on the first pressure or the second pressure. 
     According to an embodiment, the processor may be configured to change a size of an image output from the display, based on the pressure. 
     According to an embodiment, the first housing may include a first plate (e.g., the first plate  211  of  FIG.  4   ) configured to support at least a part of the display, a first protruding area (e.g., the first protruding area  216   a  of  FIG.  5   ) extending from the first plate and configured to in contact with the first elastic member, and a second protruding area (e.g., the second protruding area  216   b  of  FIG.  5   ) extending from the first plate and configured to be in contact with the second elastic member. 
     According to an embodiment, the second housing may include an upper sidewall (e.g., the upper sidewall  224   a  of  FIG.  5   ) and a lower sidewall (e.g., the lower sidewall  224   b  of  FIG.  5   ) parallel to the upper sidewall, and the electronic device may further include a first shaft (e.g., the first shaft  510  of  FIG.  5   ) which is connected to the second housing at a point adjacent to the upper sidewall, and at least a part of which is surrounded by the first elastic member, and a second shaft (e.g., the second shaft  520  of  FIG.  5   ) which is connected to the second housing at a point adjacent to the lower sidewall, and at least a part of which is surrounded by the second elastic member. 
     According to an embodiment of the disclosure, an operation method of a rollable electronic device (e.g., the operation method  1000  of the electronic device of  FIG.  11   ) may include sensing a pressure provided by an elastic member (e.g., the elastic member  300  of  FIG.  5   ) configured to be compressed based on a sliding movement of the electronic device by using a sensor module (e.g., the sensor module  400  of  FIG.  5   ) (e.g., the operation  1010  of  FIG.  11   ), determining a sliding distance of the electronic device, based on the pressure (e.g., the operation  1020  of  FIG.  11   ), and adjusting a size of an image output from a display (e.g., the display  203  of  FIG.  3   ), based on the sliding distance (e.g., the operation  1030  of  FIG.  11   ). 
     While the disclosure has been illustrated and described with reference to various example embodiments, it will be understood that the various example embodiments are intended to be illustrative, not limiting. It will be further understood by those skilled in the art that various changes in form and detail may be made without departing from the full scope of the disclosure, including the appended claims and their equivalents. It will also be understood that any of the embodiment(s) described herein may be used in conjunction with any other embodiment(s) described herein.