Electronic pen including core structure and electronic device including the same

Abstract

An electronic device according to an embodiment may include a housing and an electronic pen detachable from the housing. The electronic pen may include: a case; a pen tip disposed at one end of the case and protruding from the one end to the outside of the case; a shaft extending inwardly from the tip; a core including a first portion facing the one end of the case and including a first material, a second portion contacting the first portion and including a second material, and a through hole passing through the first portion and the second portion and accommodating at least a portion of the rod; and a conductive coil surrounding at least a portion of the second portion. A saturation magnetic flux density of the first material may be higher than a saturation magnetic flux density of the second material. Various other embodiments are possible.

Description

Technical Field

[0001] Embodiments to be described later relate to an electronic pen including a core structure and an electronic device including the electronic pen. Background Art

[0002] Electronic devices such as smart phones, tablet personal computers (PCs), and notebook computers may include a stylus pen associated with the electronic device. The stylus pen may provide the user with various user experiences by inputting a user-specified signal to a display of the electronic device. Summary of the invention

[0003] Technical Solution

[0004] A possible electronic pen may be included. The electronic pen may include: a shell; a pen tip, which is arranged at one end of the shell and protrudes from the one end to the outside of the shell; a rod, which extends from the pen tip to the inside; a core, which includes a first part, a second part and a through hole, the first part faces the one end of the shell and includes a first material, the second part contacts the first part and includes a second material, the through hole penetrates the first part and the second part and accommodates at least a part of the rod; and a conductive coil, which surrounds at least a part of the second part. The magnetic flux density of the first material may be greater than the magnetic flux density of the second material.

[0005] According to an embodiment, an electronic pen may include: a shell; a pen tip disposed at one end of the shell and protruding from the one end to the outside of the shell; a rod extending from the pen tip to the inside; a core including a first part, a second part, and a through hole, the first part facing the one end and including a first material, the second part contacting the first part and including a second material, the through hole penetrating the first part and the second part and accommodating at least a part of the rod; and a conductive coil surrounding the second part. The magnetic flux density of the first material may be greater than the magnetic flux density of the second material. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is a block diagram of an electronic device in a network environment according to an embodiment.

[0007] Figure 2a An example of an unfolded state of the electronic device according to the embodiment is shown.

[0008] Figure 2b An example of a folded state of the electronic device according to the embodiment is shown.

[0009] Figure 2c is an exploded view of an electronic device according to an embodiment.

[0010] Figure 3 An exemplary electronic pen detachable from an electronic device according to an embodiment is shown.

[0011] Figure 4The operation of an exemplary electronic pen is shown.

[0012] Figure 5 A core structure of an exemplary electronic pen is shown.

[0013] Figure 6 is a graph showing the relationship between inductance and magnetic field intensity according to the material of the core structure. DETAILED DESCRIPTION

[0014] Figure 1 is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments.

[0015] Reference Figure 1 , the electronic device 101 in the network environment 100 may communicate with the electronic device 102 via the first network 198 (e.g., a short-range wireless communication network), or communicate with at least one of the electronic device 104 or the server 108 via the 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, a 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 user identification module (SIM) 196, or an antenna module 197. In some embodiments, at least one of the components (e.g., the connection terminal 178) may be omitted from the electronic device 101, or one or more other components may be added to the electronic device 101. In some embodiments, some of the components (eg, sensor module 176, camera module 180, or antenna module 197) may be implemented as a single integrated component (eg, display module 160).

[0016] The processor 120 may run, for example, software (e.g., program 140) to control at least one other component (e.g., hardware component or software component) of the electronic device 101 connected to the processor 120, and may perform various data processing or calculations. According to an embodiment, as at least part of the data processing or calculation, the processor 120 may store a command or data received from another component (e.g., sensor module 176 or communication module 190) in the volatile memory 132, process the command or data stored in the volatile memory 132, and store the resultant data in the 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 independent of or combined with the main processor 121 in operation. For example, when the electronic device 101 includes a main processor 121 and an auxiliary processor 123, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or adapted to be dedicated to a specific function. The auxiliary processor 123 may be implemented separately from the main processor 121, or as part of the main processor 121.

[0017] When the main processor 121 is in an inactive (e.g., sleep) state, the auxiliary processor 123 (rather than the main processor 121) may control at least some of the functions or states related to at least one component among the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190), or when the main processor 121 is in an active state (e.g., running an application), the auxiliary processor 123 may control at least some of the functions or states related to at least one component among the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) together with the main processor 121. 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., a camera module 180 or a communication module 190) that is functionally related to the auxiliary processor 123. According to an embodiment, the auxiliary processor 123 (e.g., a neural processing unit) may include a hardware structure dedicated to artificial intelligence model processing. The artificial intelligence model may be generated through machine learning. For example, such learning may be performed by the electronic device 101 where the artificial intelligence is executed or via a separate server (e.g., server 108). The learning algorithm may include, but is not limited to, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, for example. The artificial intelligence model may include multiple 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), or a deep Q network or a combination of two or more thereof, but is not limited thereto. Additionally or optionally, the artificial intelligence model may include a software structure in addition to a hardware structure.

[0018] The memory 130 may store various data used by at least one component of the electronic device 101 (e.g., the processor 120 or the sensor module 176). The various data may include, for example, software (e.g., the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a nonvolatile memory 134.

[0019] The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system (OS) 142 , middleware 144 , or applications 146 .

[0020] The input module 150 may receive commands or data to be used by other components (e.g., the processor 120) of the electronic device 101 from 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).

[0021] The sound output module 155 can 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 can be used for general purposes such as playing multimedia or playing records. The receiver can be used to receive incoming calls. Depending on the embodiment, the receiver can be implemented as a separate part from the speaker, or as part of the speaker.

[0022] The display module 160 may visually provide information to the outside of the electronic device 101 (e.g., a user). The display device 160 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the 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 strength of a force caused by a touch.

[0023] The audio module 170 may convert sound into an electrical signal, or vice versa. According to an embodiment, the audio module 170 may obtain sound via the input module 150, or output sound via the sound output module 155 or an earphone of an external electronic device (e.g., electronic device 102) directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0024] The sensor module 176 may detect an operating state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a state of a user) outside the electronic device 101, and then generate an electrical signal or a 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 illumination sensor.

[0025] The interface 177 may support one or more specific protocols to be used to connect the electronic device 101 directly (e.g., wired) or wirelessly with an external electronic device (e.g., the electronic device 102). 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.

[0026] The connection end 178 may include a connector via which the electronic device 101 may be physically connected to an external electronic device (eg, the electronic device 102). According to an embodiment, the connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

[0027] The haptic module 179 may convert the electric signal into mechanical stimulation (eg, vibration or motion) or electric stimulation that can be recognized by the user via his sense of touch or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electric stimulator.

[0028] The camera module 180 may capture still images or moving images. According to an embodiment, the camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0029] The power management module 188 may manage power supply to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0030] The battery 189 may power at least one component of the electronic device 101. According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0031] 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 an external electronic device (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently from the processor 120 (e.g., an application processor (AP)) and supporting direct (e.g., wired) communication or 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 can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or a 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 multiple components (e.g., multiple chips) separated from each other. The wireless communication module 192 may identify and authenticate the electronic device 101 in a communication network (such as the first network 198 or the second network 199) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196.

[0032] The wireless communication module 192 may support 5G networks after 4G networks and next generation communication technologies (e.g., new radio (NR) access technologies). NR access technologies may support enhanced mobile broadband (eMBB), massive machine type communications (mMTC), or ultra-reliable low latency communications (URLLC). The wireless communication module 192 may support high frequency bands (e.g., millimeter wave bands) to achieve, for example, high data transmission rates. The wireless communication module 192 may support various technologies for ensuring performance on high frequency bands, such as, for example, beamforming, massive multiple input multiple output (massive MIMO), full dimensional MIMO (FD-MIMO), array antennas, analog beamforming, or massive antennas. The wireless communication module 192 may support various requirements specified in the electronic device 101, an external electronic device (e.g., electronic device 104), or a network system (e.g., a second network 199). According to an embodiment, the wireless communication module 192 may support a peak data rate for implementing eMBB (e.g., 20 Gbps or greater), loss coverage for implementing mMTC (e.g., 164 dB or less), or U-plane delay for implementing URLLC (e.g., 0.5 ms or less for each of the downlink (DL) and uplink (UL), or 1 ms or less for a round trip).

[0033] The antenna module 197 may transmit or receive a signal or power to or from the outside of the electronic device 101 (e.g., an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a radiation element formed of 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., an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network (such as the first network 198 or the second network 199) may be selected from the plurality of antennas by, for example, the communication module 190 (e.g., the wireless communication module 192). A signal or 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 radiation element may be additionally formed as a part of the antenna module 197.

[0034] According to various embodiments, the antenna module 197 may form a millimeter wave antenna module. According to an embodiment, the millimeter wave antenna module may include a printed circuit board, an RFIC, and a plurality of antennas (e.g., array antennas), wherein the RFIC is disposed on a first surface (e.g., bottom surface) of the printed circuit board, or is adjacent to the first surface and is capable of supporting a specified high frequency band (e.g., millimeter wave band), and the plurality of antennas are disposed on a second surface (e.g., top surface or side surface) of the printed circuit board, or is adjacent to the second surface and is capable of transmitting or receiving signals of the specified high frequency band.

[0035] At least some of the above components may be connected to each other via an inter-peripheral communication scheme (e.g., a bus, a general purpose input output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)) and communicatively transfer signals (e.g., commands or data) therebetween.

[0036] According to an embodiment, a command or data may be sent or received between the electronic device 101 and the external electronic device 104 via the server 108 connected to the second network 199. Each of the electronic device 102 or the electronic device 104 may be a device of the same type as the electronic device 101, or a device of a different type from the electronic device 101. According to an embodiment, all or some operations to be executed in the electronic device 101 may be executed in one or more of the external electronic devices 102, 104, or 108. For example, if the electronic device 101 should automatically execute a function or service or should execute a function or service in response to a request from a user or another device, the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service instead of executing the function or service, or the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service in addition to executing the function or service. The one or more external electronic devices receiving the request may execute at least part of the requested function or service, or execute another function or another service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may provide the result as at least a partial reply to the request with or without further processing the result. To this end, cloud computing technology, distributed computing technology, mobile edge computing (MEC) technology, or client-server computing technology, for example, may be used. The electronic device 101 may use, for example, distributed computing or mobile edge computing to provide ultra-low latency services. In another 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 neural networks. 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 homes, smart cities, smart cars, or healthcare) based on 5G communication technology or IoT-related technologies.

[0037] Figure 2a An example of an unfolded state of the electronic device according to the embodiment is shown. Figure 2b An example of a folded state of the electronic device according to the embodiment is shown. Figure 2c is an exploded view of an electronic device according to an embodiment.

[0038] Reference Figure 2a , Figure 2b and Figure 2c , the electronic device 101 may include a housing 200 and a flexible display panel 230 . The housing 200 may include a first housing 210 and a second housing 220 .

[0039] According to an embodiment, the first housing 210 may include a first surface 211, a second surface 212 facing away from the first surface 211, and a first side surface 213 surrounding at least a portion of the first surface 211 and the second surface 212. According to an embodiment, the second surface 212 may further include at least one camera 234 exposed through a portion of the second surface 212. According to an embodiment, the first housing 210 may include a first protective member 214 disposed along the periphery of the first surface 211. According to an embodiment, the first housing 210 may provide a space formed by the first surface 211, the second surface 212, and the first side surface 213 as a space for installing components of the electronic device 101. According to an embodiment, the first side surface 213 and the second side surface 223 may include a conductive material, a non-conductive material, or a combination thereof. For example, the second side surface 223 may include a conductive member 228 and a non-conductive member 229. The conductive member 228 may include a plurality of conductive members, and the plurality of conductive members may be spaced apart from each other. The non-conductive member 229 may be disposed between the plurality of conductive members. The antenna structure may be formed by a portion of the plurality of conductive members and the plurality of non-conductive members, or a combination thereof.

[0040] According to an embodiment, the second housing 220 may include a third surface 221, a fourth surface 222 facing away from the third surface 221, and a second side surface 223 surrounding at least a portion of the third surface 221 and the fourth surface 222. According to an embodiment, the fourth surface 222 may further include a display panel 235 disposed on the fourth surface 222. The camera 226 may be disposed inside the second housing 220 to face the fourth surface 222 to obtain an external image through the fourth surface 222. The camera 226 may be covered by the display panel 235 by being disposed below the display panel 235. According to an embodiment, the camera 226 may be disposed below the display panel 235, and the display panel 235 may include an opening for transmitting light from the outside to the camera 226 by aligning with a lens of the camera 226. According to an embodiment, each of the first housing 210 and the second housing 220 may include each of the first protective member 214 and the second protective member 224. The first protective member 214 and the second protective member 224 may be disposed on the first surface 211 and the third surface 221 along the periphery of the flexible display panel 230. The first protective member 214 and the second protective member 224 may prevent foreign matter (e.g., dust or moisture) from being introduced through the gap between the flexible display panel 230 and the first housing 210 and the second housing 220. The first protective member 214 may be disposed along the periphery of the first display area 231, and the second protective member 224 may be disposed along the periphery of the second display area 232. The first protective member 214 may be formed by being attached to the first side surface 213 of the first housing 210, or may be formed integrally with the first side surface 213. The second protective member 224 may be formed by being attached to the second side surface 223 of the second housing 220, or may be formed integrally with the second side surface 223.

[0041] According to an embodiment, the second side 223 may be rotatably (or pivotably) connected to the first side 213 by a hinge structure 260 mounted on a hinge cover 265. The hinge structure 260 may include a hinge module 262, a first hinge plate 266, and a second hinge plate 267. The first hinge plate 266 may be connected to the first housing 210, and the second hinge plate 267 may be connected to the second housing 220. According to an embodiment, the second housing 220 may provide a space formed by a third surface 221, a fourth surface 222 facing away from the third surface 221, and a second side 223 surrounding at least a portion of the third surface 221 and the fourth surface 222 as a space for installing components of the electronic device 101. According to an embodiment, the flexible display panel 230 may include a window exposed toward the outside. The window may protect the surface of the flexible display panel 230, and may transmit visual information provided from the flexible display panel 230 to the outside by being formed by a transparent member. The window may include a glass material such as ultra-thin glass (UTG) or a polymer material such as polyimide (PI). According to an embodiment, the flexible display panel 230 may be disposed on the first surface 211 of the first housing 210 and the third surface 221 of the second housing 220 across the hinge cover 265. The flexible display panel 230 may include a first display area 231 disposed on the first surface 211 of the first housing 210, a second display area 232 disposed on the third surface 221 of the second housing 220, and a third display area 233 between the first display area 231 and the second display area 232. The first display area 231, the second display area 232, and the third display area 233 may form the front side of the flexible display panel 230.

[0042] According to an embodiment, an opening may be formed in a portion of the screen display area of ​​the flexible display panel 230, or a recess or opening may be formed in a support member (e.g., a bracket) supporting the flexible display panel 230. The electronic device 101 may include at least one or more of a sensor module 238 and a camera 236 aligned with the recess or opening. For example, the first display area 231 may further include a camera 236 capable of obtaining an image from the outside through a portion of the first display area 231 and a sensor module 238 that generates an electrical signal or data value corresponding to an external environmental condition. According to an embodiment, at least one or more of the sensor module 238 and the camera 236 may be included on the rear side of the flexible display panel 230 corresponding to the first display area 231 or the second display area 232 of the flexible display panel 230. For example, at least one of the camera 236 and the sensor module 238 may be disposed below the flexible display panel 230 and surrounded by the flexible display panel 230. At least one of the camera 236 and the sensor module 238 may be surrounded by the flexible display panel 230 without being exposed to the outside. However, without being limited thereto, the flexible display panel 230 may include an opening that exposes the camera 236 and the sensor module 238 to the outside. Figure 2a and Figure 2b , but according to an embodiment, the flexible display panel 230 may further include a rear side opposite to the front side. According to an embodiment, the flexible display panel 230 may be supported by the first supporting member 270 of the first housing 210 and the second supporting member 280 of the second housing 220.

[0043] According to an embodiment, the hinge structure 260 may be configured to be rotatably coupled to a first support member 270 forming the first housing 210 and fastened to the first hinge plate 266 and a second support member 280 forming the second housing 220 and fastened to the second hinge plate 267 .

[0044] According to an embodiment, when the electronic device 101 is in the folded state, the hinge cover 265 around the hinge structure 260 may be at least partially exposed through the space between the first shell 210 and the second shell 220. In another embodiment, when the electronic device 101 is in the unfolded state, the hinge cover 265 may be covered by the first shell 210 and the second shell 220.

[0045] According to an embodiment, the electronic device 101 can be folded relative to the folding axis 237 passing through the hinge cover 265. For example, the hinge cover 265 can be disposed between the first housing 210 and the second housing 220 of the electronic device 101, so that the electronic device 101 can be bent, folded or folded. For example, the first housing 210 can be connected to the second housing 220 by a hinge structure 260 mounted on the hinge cover 265, and can be rotated relative to the folding axis 237. For example, the hinge structure 260 may include a hinge module 262 disposed at both ends of the first hinge plate 266 and the second hinge plate 267. Because the hinge module 262 includes hinge gears meshing with each other therein, the hinge module 262 can rotate the first hinge plate 266 and the second hinge plate 267 relative to the folding axis. The first housing 210 coupled to the first hinge plate 266 can be connected to the second housing 220 coupled to the second hinge plate 267, and can be rotated relative to the folding axis by the hinge module 262.

[0046] According to an embodiment, the electronic device 101 may be folded such that the first housing 210 and the second housing 220 face each other by rotating about the folding axis 237. According to an embodiment, the electronic device 101 may be folded such that the first housing 210 and the second housing 220 are folded or overlapped with each other.

[0047] Reference Figure 2c , the electronic device 101 may include a first support member 270, a second support member 280, a hinge structure 260, a flexible display panel 230, a printed circuit board 250, a battery 255, a hinge cover 265, an antenna 285, a display panel 235, and a back plate 290. According to an embodiment, the electronic device 101 may omit at least one of the components, or may additionally include another component. At least one of the components of the electronic device 101 may be different from the components of the electronic device 101. Figure 1 , Figure 2a or Figure 2b At least one of the components of the electronic device 101 is the same or similar, and redundant description will be omitted below.

[0048] The hinge structure 260 may include a hinge module 262, a first hinge plate 266, and a second hinge plate 267. The hinge module 262 may include a hinge gear 263 that enables the first hinge plate 266 and the second hinge plate 267 to be pivotable. The hinge gear 263 may rotate the first hinge plate 266 and the second hinge plate 267 while engaging and rotating with each other. The hinge module 262 may be a plurality of hinge modules. Each of the plurality of hinge modules may be disposed at both ends formed by the first hinge plate 266 and the second hinge plate 267.

[0049] The first hinge plate 266 may be coupled to the first support member 270 of the first housing 210, and the second hinge plate 267 may be coupled to the second support member 280 of the second housing 220. The first housing 210 and the second housing 220 may rotate to correspond to the rotation of the first hinge plate 266 and the second hinge plate 267.

[0050] The first housing 210 may include a first support member 270 and a second support member 280. The first support member 270 may be partially surrounded by the first side 213, and the second support member 280 may be partially surrounded by the second side 223. The first support member 270 may be integrally formed with the first side 213, and the second support member 280 may be integrally formed with the second side 223. According to an embodiment, the first support member 270 may be formed separately from the first side 213, and the second support member 280 may be formed separately from the second side 223. The first side 213 and the second side 223 may be used as antennas formed of a metal material, a non-metal material, or a combination thereof.

[0051] The first supporting member 270 may be coupled to the flexible display panel 230 on one surface and may be coupled to the rear plate 290 on another surface. The second supporting member 280 may be coupled to the flexible display panel 230 on one surface and may be coupled to the display panel 235 on another surface.

[0052] The printed circuit board 250 and the battery 255 may be disposed between the surface formed by the first support member 270 and the second support member 280 and the surface formed by the display panel 235 and the rear plate 290. The printed circuit board 250 may be separated so as to be disposed in each of the first support member 270 of the first housing 210 and the second support member 280 of the second housing 220. The shape of the first printed circuit board 251 disposed in the first support member 270 and the shape of the second printed circuit board 252 disposed in the second support member 280 may be different from each other according to the space inside the electronic device. Components for realizing various functions of the electronic device 101 may be mounted on the first printed circuit board 251 and the second printed circuit board 252. According to an embodiment, components for realizing the overall functions of the electronic device 101 may be mounted on the first printed circuit board 251, and electronic components for realizing a part of the functions of the first printed circuit board 251 may be disposed on the second printed circuit board 252, or components for driving the display panel 235 disposed on the fourth surface 222 may be disposed. The first printed circuit board 251 and the second printed circuit board 252 may be electrically connected to each other through the flexible printed circuit board 240.

[0053] For example, the battery 255 as a device for supplying power to at least one component of the electronic device 101 may include, for example, a non-rechargeable primary battery, or a rechargeable storage battery, or a fuel cell. At least a portion of the battery 255 may be disposed on a substantially identical plane to the printed circuit board 250. The surfaces of the printed circuit board 250 and the battery 255 formed as substantially identical planes may be disposed on surfaces of the first support member 270 and the second support member 280 (e.g., surfaces facing the second surface 212 and the fourth surface 222 or surfaces facing the display panel 235 and the back plate 290). For example, the flexible display panel 230 may be disposed on the first surface 211 and the third surface 221, and the printed circuit board 250 and the battery 255 may be disposed on the second surface 212 and the fourth surface 222 facing the surface on which the flexible display panel 230 is disposed.

[0054] In an embodiment, the antenna 285 may be disposed between the rear plate 290 and the battery 255. For example, the antenna 285 may include a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna. For example, the antenna 285 may communicate with an external device over a short distance, or wirelessly transmit and receive power required for charging.

[0055] Figure 3 An exemplary electronic pen detachable from an electronic device according to an embodiment is shown.

[0056] Reference Figure 3 , the electronic device 101 may include a housing 200 and an electronic pen 300. The electronic pen may include a shell 310, a pen tip 320, a rod 330, a core 340, and a conductive coil 360.

[0057] According to an embodiment, the housing 200 may include a receiving hole 305 for receiving the electronic pen 300. The receiving hole 305 may be provided on a side surface of the housing 200 (eg, Figure 2a The housing 200 may be provided on a portion of the first side surface 213 and the second side surface 223 of the electronic device 101. The accommodation hole 305 may extend from the portion of the side surfaces 213 and 223 toward the inside of the electronic device 101. For example, the length of the accommodation hole 305 extending in the inner direction of the electronic device 101 may correspond to the length of the electronic pen 300. The inner peripheral surface of the accommodation hole 305 may correspond to the shape of the electronic pen 300. The housing 200 may provide the electronic device 101 with an accommodation space for the electronic pen 300 by including the accommodation hole 305.

[0058] According to an embodiment, the electronic pen 300 may be detachable from the housing 200 of the electronic device 101. For example, the electronic pen 300 may be inserted into the receiving hole 305 of the electronic device 101 and fixed in the electronic device 101. The electronic pen 300 may be separated from the electronic device 101 by being detached from the receiving hole 305.

[0059] According to an embodiment, the case 310 may constitute at least a part of the appearance of the electronic pen 300. The case 310 may provide a space for internal components of the electronic pen 300. In a state where the electronic pen 300 is inserted into the receiving hole 305, the case 310 may face the inner circumferential surface of the receiving hole 305. The case 310 may reduce damage to internal components of the electronic pen 300 due to external impact.

[0060] According to an embodiment, the housing 310 may include a flat area 310a extending in the longitudinal direction of the electronic pen 300 and a curved area 310b extending from the flat area 310a. The flat area 310a and the curved area 310b may surround the inside of the electronic pen 300. For example, the flat area 310a may include a first flat area 311a and a second flat area 312a parallel to each other. The internal components of the electronic pen 300 may be disposed between the first flat area 311a and the second flat area 312a. The curved area 310b may include a first curved area 311b extending from one periphery of the first flat area 311a to one periphery of the second flat area 312a and a second curved area 312b facing the first curved area 311b and extending from another periphery of the first flat area 311a to another periphery of the second flat area 312a. The flat areas 311a and 312a and the curved areas 311b and 312b may surround an internal space in which the internal components of the electronic pen 300 are disposed.

[0061] According to an embodiment, one cross section of the shell 310 may have a track shape in which the length d1 of the major axis is longer than the length d2 of the minor axis. For example, one cross section of the shell 310 may correspond to the shape of a cross section of flat areas 311a and 312a extending in parallel to each other in the longitudinal direction of the electronic pen 300 and curved areas 311b and 312b extending from the flat areas 311a and 312a and facing each other. Since the curved areas 311b and 312b have a specified radius of curvature, one cross section of the shell 310 may have a track shape. The length d1 of the major axis of the track shape may correspond to the longest distance between the curved areas 311b and 312b. The length d2 of the minor axis of the track shape may correspond to the vertical distance between the flat areas 311a and 312a.

[0062] According to an embodiment, the length d2 of the minor axis of one cross section of the case 310 may be smaller than the length d3 corresponding to the thickness of the side surfaces 213 and 223 of the case 200. For example, the side surfaces 213 and 223 of the case 200 may include a receiving hole 305 having a shape corresponding to the rail shape of one cross section of the case 310 to receive the case 310 of the electronic pen 300 whose one cross section has the rail shape. The length d4 of the minor axis of the receiving hole 305 may be greater than the length d2 of the minor axis of the one cross section of the case 310 to receive the electronic pen 300. Because the side surfaces 213 and 223 of the case 200 include the receiving hole 305, the length d3 corresponding to the thickness of the side surfaces 213 and 223 may be greater than the length d4 of the minor axis of the receiving hole 305. Because the length d4 of the minor axis of the receiving hole 305 is greater than the length d2 of the minor axis of the one cross section of the case 310, the length d3 corresponding to the thickness of the side surfaces 213 and 223 may be greater than the length d2 of the minor axis of the one cross section of the case 310.

[0063] According to an embodiment, the pen tip 320 may be provided at one end 311 of the housing 310. The pen tip 320 may protrude from the one end 311 to the outside of the housing 310. For example, the one end 311 of the housing 310 may include a housing hole. The pen tip 320 may protrude from the housing hole to the outside of the electronic pen 300 by penetrating the housing hole. According to an embodiment, the pen tip 320 may be placed around the housing hole.

[0064] According to an embodiment, the rod 330 may extend from the pen tip 320 into the interior of the electronic pen 300. For example, the rod 330 may be disposed inside the case 310. The rod 330 may extend in a direction opposite to the direction in which the pen tip 320 protrudes outward. The rod 330 may be connected to the pen tip 320 in the case 310. According to an embodiment, the rod 330 may penetrate a case hole disposed at one end 311 of the case 310. The rod 330 may be connected to the pen tip 320 through the case hole.

[0065] According to an embodiment, the core 340 may be disposed inside the case 310. The core 340 may include a through hole 350 that accommodates at least a portion of the rod 330. For example, the rod 330 may penetrate the core 340 disposed inside the case 310 by extending from the pen tip 320 to the inside of the case 310. The through hole 350 of the core 340 may accommodate the rod 330. Since the through hole 350 accommodates the rod 330, the core 340 may support the rod 330.

[0066] According to an embodiment, the core 340 may have a rail shape corresponding to the one cross section of the shell 310 to be disposed inside the shell 310. For example, the core 340 may include parallel planes 343 and 345 facing each of the flat regions 311a and 312a of the shell 310. The core 340 may include curved surfaces 344 and 346 extending from the planes 343 and 345 and facing each of the curved regions 311b and 312b of the shell 310. Each of the curved surfaces 344 and 346 may have a shape corresponding to each of the curved regions 311b and 312b. Since each of the planes 343 and 345 of the core 340 corresponds to the shape of each of the flat areas 311a and 312a of the shell 310, and the curved surfaces 344 and 346 of the core 340 correspond to the shape of each of the curved areas 311b and 312b of the shell 310, the shape of one cross section of the core 340 may have a track shape corresponding to the shape of the one cross section of the shell 310. For example, a length d5 ​​of a major axis of the one cross section of the core 340 may be greater than a length d6 of a minor axis of the one cross section of the core 340. Since the one cross section of the core 340 has a track shape having a length d6 of a minor axis, the minor axis of the one cross section of the shell 310 may have a length d2 less than a length d3 corresponding to the thickness of the sides 213 and 223 of the housing 200. According to an embodiment, the length d5 ​​of the major axis of the one cross section of the core 340 may be in the range of 2 mm or more and 3 mm or less. The length d6 of the minor axis of the one cross section of the core 340 may be in the range of 1 mm or more and 2 mm or less.

[0067] According to an embodiment, the conductive coil 360 may surround at least a portion of the core 340. The conductive coil 360 may allow an induced current to flow in response to a change in an external magnetic field. The coil 360 may be used as an inductor that generates an induced electromotive force relative to the induced current. The core 340 surrounded by the conductive coil 360 may be magnetized relative to the external magnetic field by having a magnetic permeability within a specified range. The conductive coil 360 may increase the inductance L of the conductive coil 360 by surrounding the core 340 having a magnetic permeability within a specified range. According to an embodiment, the conductive coil 360 may increase the inductance L of the conductive coil 360 by increasing the number of turns of the conductive coil 360 wound around the core 340.

[0068] According to the above-described embodiment, the electronic device 101 can provide an enhanced user experience for the user of the electronic device 101 by including the electronic pen 300 detachable from the housing 200. The electronic pen 300 can be configured such that the electronic pen 300 can be accommodated in the housing 200 by including a core 340 having a length d6 of the minor axis of the one cross section, which is less than the length d5 ​​of the major axis. The core 340 can increase the inductance L of the conductive coil 360 surrounding the core 340 by having a magnetic permeability within a specified range.

[0069] Figure 4 The operation of an exemplary electronic pen is shown.

[0070] Reference Figure 4 The electronic device 101 may include a housing 200, a hinge structure (eg, Figure 2c hinge structure 260), a processor (e.g., Figure 1 The electronic pen 300 may include a processor 120 of the housing 200, a display module 160, and an electronic pen 300 detachable from the housing 200. The electronic pen 300 may include a case 310, a pen tip 320, a rod 330, a core 340, a conductive coil 360, and a printed circuit board 440.

[0071] According to an embodiment, the housing 200 may include a first housing 210 and a second housing 220. The first housing 210 may include a first surface 211 and a second surface (eg, Figure 2a The second housing 220 may include a third surface 221 and a fourth surface (eg, Figure 2a The first side surface 213 of the first housing 210 may surround at least a portion of the first surface 211 and the second surface 212. The second side surface 223 of the second housing 220 may surround at least a portion of the third surface 221 and the fourth surface 222. According to an embodiment, the accommodation hole 305 for accommodating the electronic pen 300 may be provided on at least a portion of the second side surface 223 of the second housing 220.

[0072] According to an embodiment, by rotatably coupling the first housing 210 and the second housing 220, a hinge structure (eg, Figure 2c The hinge structure 260 of the first housing 210 can be changed to a folded state or an unfolded state, in which the first surface 211 of the first housing 210 and the third surface 221 of the second housing 220 face each other, and in the unfolded state, the direction faced by the first surface 211 is the same as the direction faced by the third surface 221. According to an embodiment, in the folded state, at least a portion of the first side surface 213 of the first housing 210 can contact at least a portion of the second side surface 223 of the second housing 220.

[0073] According to an embodiment, the display module 160 of the electronic device 101 may include an electromagnetic induction panel (e.g., a digitizer) 410 that electrically interacts with the electronic pen 300. The processor 120 of the electronic device 101 may be configured to obtain input information from the electrical interaction between the electronic pen 300 and the electromagnetic induction panel 410. For example, the electromagnetic induction panel 410 may generate a magnetic field of a specified strength by an alternating current flowing through the electromagnetic induction panel 410. As the electronic pen 300 becomes close to the electromagnetic induction panel 410, the magnetic field may cause an induced current to flow through the conductive coil 360 provided in the electronic pen 300. The electronic pen 300 may detect the induced current flowing through the conductive coil 360 and send an electromagnetic wave signal 405 to the electromagnetic induction panel 410. The electromagnetic induction panel 410 may detect the position and strength of the electromagnetic wave signal 405 received from the electronic pen 300 and send information related to the electromagnetic wave signal 405 to the processor 120 of the electronic device 101. The processor 120 may display information according to the operation of the electronic pen 300 on the display module 160 of the electronic device 101 by receiving information related to the electromagnetic wave signal 405 from the electromagnetic induction panel 410 .

[0074] According to an embodiment, the electronic device 101 may further include a magnet 420 disposed between the display module 160 and the housing 200. The magnet 420 may face the side surfaces 213 and 223 of the housing 200. For example, the magnet 420 may be disposed between the display module 160 and the second surface 212 of the first housing 210, and may face the first side surface 213 of the first housing 210. For example, the magnet 420 may be disposed between the display module 160 and the fourth surface 222 of the second housing 220, and may face the second side surface 223 of the second housing 220.

[0075] According to an embodiment, the display module 160 may include a flexible display panel 230. The flexible display panel 230 may be arranged on the first surface 211 of the first housing 210 and the third surface 221 of the second housing 220 across the hinge structure 260. The electronic device 101 may further include a first magnet 421 arranged between the first surface 211 and the second surface 212 and a second magnet 422 arranged between the third surface 221 and the fourth surface 222. In the folded state, the second magnet 422 may face the first magnet 421. The first magnet 421 may be configured to maintain the folded state by having a different polarity from the second magnet 422. For example, because the first surface 211 and the third surface 221 face each other in the folded state, the flexible display panel 230 arranged on the first surface 211 may face the flexible display panel 230 arranged on the second surface 212. The first magnet 421 may be disposed between the first surface 211 and the second surface 212 of the first housing 210, and when the flexible display panel 230 is viewed from above, the first magnet 421 may overlap with the first overlapping region 230a of the flexible display panel 230 disposed on the first surface 211. The second magnet 422 may be disposed between the third surface 221 and the fourth surface 222 of the second housing 220, and when the flexible display panel 230 is viewed from above, the second magnet 422 may overlap with the second overlapping region 230b of the flexible display panel 230 disposed on the third surface 221. In the folded state, the first overlapping region 230a may contact the second overlapping region 230b. In the folded state, since the first overlapping region 230a faces the second overlapping region 230b, the first magnet 421 may face the second magnet 422. By having a different polarity from the second magnet 422, in the folded state, the first magnet 421 may maintain a state in which the first overlapping region 230a and the second overlapping region 230b contact each other.

[0076] According to an embodiment, the display module 160 may include an electromagnetic induction panel 410 and a flexible display panel 230 disposed on the electromagnetic induction panel 410. When the flexible display panel 230 is observed from above, the overlapping regions 230a and 230b respectively overlapping with the magnets 421 and 422 may have a stronger magnetic field strength than the remaining regions of the flexible display panel 230 except the overlapping regions 230a and 230b by the magnets 421 and 422. For example, the remaining regions of the flexible display panel 230 except the overlapping regions 230a and 230b may have a magnetic field strength within a specified range by an alternating current flowing through the electromagnetic induction panel 410. The overlapping regions 230a and 230b of the flexible display panel 230 may have a magnetic field strength greater than the magnetic field strength within a specified range by the magnets 421 and 422.

[0077] According to an embodiment, the electronic pen 300 may further include a resonant circuit 450 disposed on the printed circuit board 440. For example, the printed circuit board 440 may be disposed in the shell 310 of the electronic pen 300 and extend in the longitudinal direction of the shell 310. The resonant circuit 450 may be disposed on one surface of the printed circuit board 440 along the extending direction of the printed circuit board 440. As the electronic pen 300 becomes close to the display module 160 of the electronic device 101, the resonant circuit 450 may detect an induced current flowing through the conductive coil 360 of the electronic pen 300 through the electromagnetic induction panel 410 included in the display module 160. The resonant circuit 450 may generate an electromagnetic wave signal 405, and the electromagnetic induction panel 410 may detect the electromagnetic wave signal 405 by detecting the induced current.

[0078] According to an embodiment, the resonance circuit 450 may include at least one capacitor 460. The at least one capacitor 460 may include a first capacitor 461 and a second capacitor 462. The first capacitor 461 may be configured to change the capacitance C of the resonance circuit 450 when the rod 330 moves in a first direction (e.g., +z direction) as the tip 320 of the electronic pen 300 is pressed, or when the rod 330 moves in a second direction (e.g., -z direction) opposite to the first direction as the pressure is released. For example, the first capacitor 461 may be a variable capacitor. In the first capacitor 461, when the rod 330 moves in a first direction (e.g., +z direction) as the tip 320 of the electronic pen 300 is pressed by the flexible display panel 230, the capacitance C1 of the first capacitor 461 may change. The processor 120 of the electronic device 101 may recognize the change in the resonance frequency of the electromagnetic wave signal 405 according to the change in the capacitance C1 of the first capacitor 461 through the electromagnetic induction panel 410 of the electronic device 101. In the first capacitor 461, when the rod 330 moves in a second direction (e.g., -z direction) opposite to the first direction as the pressure is released by the flexible display panel 230, the capacitance C1 of the first capacitor 461 may change. The first capacitor 461 may change the capacitance C1 of the first capacitor 461 according to the pressure intensity by the movement of the rod 330 according to the pressure intensity of the pen tip 320. Unlike the first capacitor 461, the second capacitor 462 may maintain the capacitance C2 of the second capacitor 462 regardless of the pressure of the pen tip 320. The first capacitor 461 may change the capacitance C of the resonance circuit 450 including the first capacitor 461 by changing the capacitance C1 of the first capacitor 461.

[0079] Although the resonance circuit 450 is described as including the first capacitor 461 and the second capacitor 462, it is not limited thereto. The resonance circuit 450 may include a plurality of variable capacitors and a plurality of capacitors with fixed capacitances. By including the plurality of variable capacitors whose capacitances change according to the pen pressure of the electronic pen 300, the resonance circuit 450 may be configured to change the capacitance C of the resonance circuit 450 according to the pen pressure.

[0080] According to an embodiment, the pen tip 320 and the rod 330 may include a conductive material. For example, the pen tip 320 and the rod 330 may include conductive silicon. Since the pen tip 320 and the rod 330 include a conductive material, the electronic pen 300 may electrically interact with the electromagnetic induction panel 410 included in the display module 160.

[0081] The electronic device 101 according to the above-described embodiment may maintain a folded state by including the magnets 421 and 422. The electronic device 101 may electrically interact with the electronic pen 300 by including the electromagnetic induction panel 410 in the display module 160. The electronic pen 300 may detect the pen pressure of the electronic pen 300 and electrically interact with the electromagnetic induction panel 410 by including the resonance circuit 450 including the first capacitor 461 in the housing 310.

[0082] Figure 5 A core structure of an exemplary electronic pen is shown.

[0083] Reference Figure 5 , the electronic device 101 may include a display module 160 and a magnet 420. The electronic pen 300 may include a housing 310, a pen tip 320, a rod 330, a core 340, and a conductive coil 360. The core 340 may include a through hole 350 that accommodates at least a portion of the rod 330.

[0084] According to an embodiment, the core 340 may further include a first portion 341 and a second portion 342, the first portion 341 facing one end 311 of the shell 310 and including a first material m1, and the second portion 342 contacting the first portion 341 and including a second material m2. The through hole 350 of the core 340 may penetrate the first portion 341 and the second portion 342. For example, the first portion 341 of the core 340 may extend toward one end 311 of the shell 310 on which the pen tip 320 is disposed. The second portion 342 of the core 340 may extend from one surface of the first portion 341 toward the inside of the shell 310. The through hole 350 may penetrate the first portion 341 and the second portion 342. Because the rod 330 extending from the pen tip 320 toward the inside of the shell 310 penetrates the through hole 350, the rod 330 may penetrate the first portion 341 and the second portion 342.

[0085] According to an embodiment, as the electronic pen 300 becomes close to the display module 160, the first portion 341 of the core 340 may be a portion where magnetic interference generated by the magnet 420 is strong. The second portion 342 contacting the first portion 341 may be a portion where magnetic interference caused by a magnetic field is weaker than that of the first portion 341. Because the first portion 341 includes the first material m1 and the second portion 342 includes the second material m2, the core 340 may have different electromagnetic characteristics in the first portion 341 and the second portion 342, respectively.

[0086] According to an embodiment, the conductive coil 360 may surround at least a portion of the second portion 342. According to an embodiment, the conductive coil 360 may further surround at least a portion of the first portion 341. According to an embodiment, the length of the first portion 341 may be within a range of 1 mm or more and 2 mm or less.

[0087] According to an embodiment, the magnetic flux density b1 of the first material m1 disposed in the first portion 341 may be greater than the magnetic flux density b2 of the second material m2 disposed in the second portion 342. When the display module 160 is viewed from above, the electronic pen 300 may become close to an overlapping area (e.g., Figure 4 Because the magnetic flux density b1 of the first material m1 of the first portion 341 having stronger magnetic interference caused by the magnetic field of the magnet 420 is greater than the magnetic flux density b2 of the second material m2 of the second portion 342 having weaker magnetic interference than the first portion 341, the core 340 can reduce the reduction of the inductance L of the conductive coil 360 surrounding the core 340 due to the magnetic saturation of the core 340.

[0088] According to an embodiment, the magnetic permeability p1 of the first material m1 disposed in the first portion 341 may be lower than the magnetic permeability p2 of the second material m2 disposed in the second portion 342. When the display module 160 is viewed from above, the electronic pen 300 may become close to the remaining areas of the display module 160 except for the overlapping areas 230a and 230b where the display module 160 overlaps with the magnet 420. The display module 160 may include an electromagnetic induction panel (e.g., Figure 4 Electromagnetic induction panel 410). Electromagnetic induction panel 410 may generate a magnetic field having a strength within a specified range generated by an alternating current. Since magnetic permeability p2 of second material m2 disposed in second portion 342 of core 340 is higher than magnetic permeability p1 of first material m1 disposed in first portion 341 contacting second portion 342 facing display module 160, reduction in inductance L of conductive coil 360 surrounding core 340 due to reduction in magnetic permeability of core 340 may be reduced.

[0089] According to an embodiment, the first material m1 disposed in the first portion 341 may include metal powder. The second material m2 disposed in the second portion 342 may include ferrite. For example, the magnetic flux density b1 of the first material m1 disposed in the first portion 341 including the metal powder is greater than the magnetic flux density b2 of the second material m2 disposed in the second portion 342 including the ferrite. For example, the magnetic permeability p2 of the second material m2 disposed in the second portion 342 including the ferrite may be greater than the magnetic permeability p1 of the first material m1 disposed in the first portion 341 including the metal powder.

[0090] According to an embodiment, the first portion 341 of the core 340 may include a first region 340a that protrudes relative to the conductive coil 360 in a second direction (e.g., -z direction) opposite to the first direction (e.g., +z direction) in which the pen tip 320 is pressed. The second portion 342 of the core 340 may include a second region 340b that protrudes in the first direction relative to the conductive coil 360. By including the first region 340a and the second region 340b that protrude relative to the conductive coil 360, the core 340 may increase the electromagnetic interaction between the magnetic field generated from the display module 160 and both the core 340 and the conductive coil 360. According to an embodiment, the length of the first region 340a and the length of the second region 340b may be in the range of 2 mm or more and 3 mm or less, respectively.

[0091] According to the above-mentioned embodiment, by changing the material of the first part 341 having strong magnetic interference of the magnetic field generated from the electronic device 101 and the material of the second part 342 contacting the first part 341 and having magnetic interference of the magnetic field weaker than the first part 341, the core 340 of the electronic pen 300 can reduce the inductance L of the conductive coil 360 according to the reduction of the magnetic field strength.

[0092] Figure 6 is a graph showing the relationship between inductance and magnetic field intensity according to the material of the core structure.

[0093] Reference Figure 6 , the horizontal axis of the graph 600 represents the electronic pen (eg, Figure 3 The conductive coil of the electronic pen 300 (eg, Figure 3 The vertical axis of the graph 600 represents the inductance L of the conductive coil 360.

[0094] Referring to the graph 600, as the magnetic field strength around the conductive coil 360 increases, the inductance L of the conductive coil 360 may decrease. For example, when the magnetic field around the conductive coil 360 is greater than the magnetic flux density of the core 340 surrounded by the conductive coil 360, the inductance L of the conductive coil 360 may decrease due to the magnetic saturation of the core 340.

[0095] Graph 610 represents the core (e.g., Figure 3 Graph 620 shows the inductance L of the conductive coil 360 according to the magnetic field strength around the conductive coil 360 when the material of the core 340 surrounded by the conductive coil 360 is ferrite. Graph 620 shows the inductance L of the conductive coil 360 according to the magnetic field strength around the conductive coil 360 when the material of the core 340 surrounded by the conductive coil 360 is metal powder.

[0096] Referring to the graph 610, in the case where the magnetic field strength around the conductive coil 360 has a specified range (e.g., a magnetic field strength range of 100G or more and 150G or less), the core 340 of the ferrite material can reduce the reduction of the inductance L of the conductive coil 360 surrounding the core 340. In the case where the magnetic field strength around the conductive coil 360 has a strength greater than or equal to a specified strength (e.g., a strength of 150G or more and 250G or less), the core 340 of the ferrite material can reduce the inductance L of the conductive coil 360 surrounding the core 340.

[0097] Referring to the graph 620, in the case where the magnetic field intensity around the conductive coil 360 has a specified range (e.g., a magnetic field intensity range of 200 G or more and 300 G or less), within the magnetic field intensity range within the specified range, the core 340 of the metal powder material can reduce the reduction of the inductance L of the conductive coil 360 surrounding the core 340 compared to the core 340 of the ferrite material. In the case where the magnetic field intensity around the conductive coil 360 has an intensity less than or equal to the specified intensity (e.g., an intensity of 0 G or more and 200 G or less), the core 340 of the metal powder material can reduce the inductance L of the conductive coil 360 surrounding the core 340 compared to the core 340 of the ferrite material.

[0098] Graph 630 represents the first portion of core 340 (eg, Figure 5 The material of the first part 341 of the core 340 is metal powder and the second part of the core 340 (for example, Figure 5 In the case where the material of the first portion 341 and the second portion 342 is ferrite, the inductance L of the conductive coil 360 according to the magnetic field strength around the conductive coil 360. Referring to the graph 630, the core 340 including the first portion 341 and the second portion 342 can reduce the reduction of the inductance L of the conductive coil 360 caused by the core 340 of metal powder in the first compensation area 651. The core 340 including the first portion 341 and the second portion 342 can reduce the reduction of the inductance L of the conductive coil 360 caused by the core 340 of ferrite in the second compensation area 652.

[0099] According to the above-described embodiment, by changing the Figure 1 The core 340 of the electronic pen 300 is made of a material of a first part 341 that has a strong magnetic interference with the magnetic field generated by the electronic device 101) and a material of a second part 342 that contacts the first part 341 and has a weaker magnetic interference with the magnetic field than the first part 341, and the inductance L of the conductive coil 360 of the electronic pen 300 can be reduced according to the reduction of the magnetic field strength.

[0100] According to the above-mentioned embodiments, the electronic device (e.g., Figure 1 The electronic device 101 may include a housing (eg, Figure 2a 200, a first shell 210 and a second shell 220), an electronic pen detachable from the shell (eg, Figure 3 The electronic pen 300 may include: a housing (eg, Figure 3 shell 310); pen tip (eg, Figure 3 The pen tip 320 is disposed at one end of the shell (for example, Figure 3 One end 311 of the housing protrudes from the one end to the outside of the housing; a rod (eg, Figure 3 The rod 330 extends from the tip to the interior; the core (eg, Figure 3 The core 340 includes a first portion (eg, Figure 5 The first part 341), the second part (for example, Figure 5 The second portion 342) and the through hole (eg, Figure 3 The first part faces the one end of the shell and includes a first material (eg, Figure 5 m1), the second portion contacts the first portion and includes a second material (eg, Figure 5 m2), a through hole penetrating the first portion and the second portion, accommodating at least a portion of the rod; and a conductive coil (e.g., Figure 3 The magnetic flux density of the first material (e.g., Figure 5 p1) can be greater than the magnetic flux density of the second material (e.g., Figure 5 p2). According to the above embodiments, the electronic device can provide various user experiences for the user of the electronic device by including an electronic pen that electromagnetically interacts with the electronic device. The electronic pen can increase the inductance of the conductive coil by including a core. Because the magnetic flux density of the first part of the magnetic field generated from the electronic device where the magnetic interference is strong is greater than the magnetic flux density of the second part of the magnetic field where the magnetic interference is weaker than the first part, the core can reduce the reduction in the inductance of the conductive coil caused by the magnetic saturation of the core. The above embodiments can have various effects including the above effects.

[0101] According to an embodiment, the electronic device may further include: a display (eg, Figure 1 The display module 160, and Figure 2aThe display panel 230 and the flexible display panel 235 include an electromagnetic induction panel (eg, Figure 4 electromagnetic induction panel 410); and a processor (eg, Figure 1 The processor 120 is configured to obtain input information from the electrical interaction between the electronic pen and the electromagnetic induction panel. According to the above embodiment, the electronic device can electrically interact with the electronic pen by including the electromagnetic induction panel and the processor. The above embodiment can have various effects including the above effect.

[0102] The electronic device according to the embodiment may further include a magnet (eg, Figure 4 The magnet 420, the first magnet 421 and the second magnet 422 are disposed between the display and the housing, facing the side of the housing (eg, Figure 2a According to the above embodiment, the electronic device can provide various user experiences of the housing to the user of the electronic device by including the magnet. The above embodiment can have various effects including the above effects.

[0103] According to an embodiment, the case may include a flat area extending in the longitudinal direction of the electronic pen (eg, Figure 3 The flat area 310a, the first flat area 311a and the second flat area 312a) and the curved area extending from the flat area and surrounding the interior (for example, Figure 3 The electronic pen includes a curved area 310b, a first curved area 311b, and a second curved area 312b. According to the above embodiment, by including the flat area, the case can provide the electronic pen with a thickness smaller than that of the case, so that the electronic pen can be accommodated in the case of the electronic device. By including the curved area extending from the flat area, the electronic pen can provide a user of the electronic pen with a comfortable grip. The above embodiment can have various effects including the above effects.

[0104] According to an embodiment, a cross section of the shell may have a rail shape with a length of its major axis (e.g. Figure 3 d1) is longer than the length of the minor axis (e.g., Figure 3 According to the above embodiment, by having a rail shape in which the minor axis of the one cross section is shorter than the major axis, the case can provide the electronic pen with a thickness smaller than that of the case, so that the electronic pen can be accommodated in the case of the electronic device. The above embodiment can have various effects including the above effects.

[0105] According to an embodiment, the length of the minor axis of the one cross section may be smaller than the length corresponding to the thickness of the side surface of the housing (eg, Figure 3According to the above embodiment, by having a rail shape in which the minor axis of the one cross section is shorter than the major axis, the shell can provide the electronic pen with a thickness smaller than that of the shell, so that the electronic pen can be accommodated in the shell of the electronic device. The above embodiment can have various effects including the above effects.

[0106] According to an embodiment, the core may have a track shape corresponding to the one cross section of the shell to be disposed in the shell. According to the above embodiment, by having a track shape in which the minor axis is shorter than the major axis, the core may provide the electronic pen with a thickness smaller than that of the shell, so that the electronic pen may be accommodated in the shell of the electronic device. The above embodiment may have various effects including the above effects.

[0107] According to an embodiment, the housing (e.g. Figure 2a The housing 200 may include: a first housing (eg, Figure 2a The first housing 210 includes a first surface (eg, Figure 2a a first surface 211) and a second surface opposite to the first surface (eg, Figure 2a a second surface 212 of the housing); and a second housing (eg, Figure 2a The second housing 220 includes a third surface (eg, Figure 2a A third surface 221) and a fourth surface opposite to the third surface (eg, Figure 2a The electronic device may further include: a hinge structure (eg, Figure 2c A hinge structure 260 that can be changed into a folded state in which the first surface and the third surface face each other or an unfolded state in which the direction faced by the first surface and the direction faced by the third surface are the same by rotatably connecting the first shell and the second shell; and a flexible display (for example, Figure 2a The flexible display panel 230 is arranged on the first surface and the third surface across the hinge structure. According to the above embodiment, the electronic device can provide various user experiences for the user of the electronic device by being configured to be changeable from a folded state to an unfolded state or from an unfolded state to a folded state, including a first housing, a second housing, a hinge structure and a flexible display. The above embodiment can have various effects including the above effects.

[0108] According to an embodiment, the electronic device may further include a first magnet (eg, Figure 4 A first magnet 421) and a second magnet (eg, Figure 4The first magnet may be configured to maintain the folded state by having a polarity different from that of the second magnet. According to the above embodiment, the electronic device may maintain the folded state of the electronic device by including the first magnet and the second magnet. The above embodiment may have various effects including the above effects.

[0109] According to an embodiment, the electronic pen may further include a printed circuit board (eg, Figure 4 A printed circuit board 440) and a variable capacitor (eg, Figure 4 The first capacitor 461) of the resonant circuit (eg, Figure 4 The variable capacitor may be configured to change the capacitance of the resonant circuit when the rod moves in a first direction as the pen tip is pressed or when the rod moves in a second direction opposite to the first direction as the pressure is released (e.g., Figure 4 C). According to the above embodiment, the electronic pen can electromagnetically interact with the electromagnetic induction panel of the electronic device by including the resonant circuit. By including a variable capacitor, the resonant circuit can be configured to change the capacitance of the resonant circuit according to the pen pressure of the electronic pen. The above embodiment can have various effects including the above effects.

[0110] According to an embodiment, the first portion of the core may include a first region (eg, Figure 5 The second portion of the core may include a second region (eg, a first region 340a) protruding in the first direction relative to the conductive coil. Figure 5 According to the above embodiment, the core may electromagnetically interact with the electromagnetic induction panel of the electronic device by including the first region and the second region. The above embodiment may have various effects including the above effects.

[0111] According to an embodiment, the pen tip and the rod may include a conductive material. According to the above embodiment, the electronic pen may electrically interact with a display module of the electronic device contacting the pen tip by including the pen tip and the rod including the conductive material. The above embodiment may have various effects including the above effects.

[0112] According to an embodiment, the first material may include metal powder, and the second material may include ferrite. According to the above embodiment, by changing the material of the first material included in the first part having strong magnetic interference of the magnetic field generated from the electronic device and the material of the second material included in the second part having magnetic interference of the magnetic field weaker than the first part, the above embodiment can reduce the inductance of the conductive coil of the electronic pen according to the reduction of the magnetic field strength. Various effects including the above effects can be achieved.

[0113] According to an embodiment, the magnetic permeability of the first material (e.g., Figure 5 p1) may be less than the magnetic permeability of the second material (e.g., Figure 5 According to the above embodiment, since the magnetic permeability of the first material provided in the second portion of the core is greater than the magnetic permeability of the first material provided in the first portion, the reduction in inductance of the conductive coil surrounding the core due to the reduction in the magnetic permeability of the core can be reduced. The above embodiment can have various effects including the above effects.

[0114] According to an embodiment, the conductive coil may further surround at least a portion of the first portion. According to the above-mentioned embodiment, since the conductive coil surrounds at least a portion of the first portion, the reduction in the inductance of the conductive coil that varies according to the magnetic field strength of the electronic device can be reduced. The above-mentioned embodiment can have various effects including the above-mentioned effects.

[0115] According to an embodiment, an electronic pen may include: a shell; a pen tip provided at one end of the shell and protruding from the one end to the outside of the shell; a rod extending from the pen tip to the inside; a core including a first part, a second part and a through hole, the first part facing the one end and including a first material, the second part contacting the first part and including a second material, the through hole penetrating the first part and the second part and accommodating at least a part of the rod; and a conductive coil surrounding at least a part of the second part. The magnetic flux density of the first material may be greater than the magnetic flux density of the second material. According to the above embodiment, the electronic pen may increase the inductance of the conductive coil by including the core. Because the magnetic flux density of the first part where the magnetic interference of the magnetic field generated from the electronic device is strong is greater than the magnetic flux density of the second part where the magnetic interference of the magnetic field is weaker than the first part, the core may reduce the reduction of the inductance of the conductive coil due to the magnetic saturation of the core. The above embodiment may have various effects including the above effects.

[0116] According to an embodiment, the electronic pen may further include a printed circuit board and a resonant circuit including a variable capacitor disposed on the printed circuit board. The variable capacitor may be configured to change the capacitance of the resonant circuit when the rod moves in a first direction as the pen tip is pressed or when the rod moves in a second direction opposite to the first direction as the pressure is released. According to the above embodiment, the electronic pen may electromagnetically interact with the electromagnetic induction panel of the electronic device by including the resonant circuit. By including the variable capacitor, the resonant circuit may be configured to change the capacitance of the resonant circuit according to the pen pressure of the electronic pen. The above embodiment may have various effects including the above effects.

[0117] According to an embodiment, the first portion of the core may include a first area protruding in a second direction relative to the conductive coil, and the second portion of the core may include a second area protruding in the first direction relative to the conductive coil. According to the above embodiment, the core may electromagnetically interact with the electromagnetic induction panel of the electronic device by including the first area and the second area. The above embodiment may have various effects including the above effects.

[0118] According to an embodiment, the pen tip and the rod may include a conductive material. According to the above embodiment, the electronic pen may electrically interact with a display module of the electronic device contacting the pen tip by including the pen tip and the rod including the conductive material. The above embodiment may have various effects including the above effects.

[0119] According to an embodiment, the first material may include metal powder and the second material may include ferrite. According to the above embodiment, by changing the material of the first material included in the first portion having strong magnetic interference of the magnetic field generated from the electronic device and the material of the second material included in the second portion having magnetic interference of the magnetic field weaker than the first portion, the above embodiment can reduce the inductance of the conductive coil of the electronic pen according to the reduction of the magnetic field strength. Various effects including the above effects can be achieved.

[0120] According to an embodiment, the magnetic permeability of the first material may be less than the magnetic permeability of the second material. According to the above embodiment, since the magnetic permeability of the first material disposed in the second portion of the core is greater than the magnetic permeability of the first material disposed in the first portion, the reduction in inductance of the conductive coil surrounding the core due to the reduction in the magnetic permeability of the core can be reduced. The above embodiment can have various effects including the above effects.

[0121] According to an embodiment, the conductive coil may further surround at least a portion of the first portion. According to the above-mentioned embodiment, since the conductive coil surrounds at least a portion of the first portion, the reduction in the inductance of the conductive coil that varies according to the magnetic field strength of the electronic device can be reduced. The above-mentioned embodiment can have various effects including the above-mentioned effects.

[0122] The electronic device according to various embodiments may be one of various types of electronic devices. The electronic device may include, for example, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a household appliance. According to an embodiment of the present disclosure, the electronic device is not limited to those electronic devices described above.

[0123] It should be understood that the various embodiments of the present disclosure and the terms used therein are not intended to limit the technical features set forth herein to specific embodiments, but include various changes, equivalents or replacements for the corresponding embodiments. For the description of the accompanying drawings, similar reference numerals may be used to refer to similar or related elements. It will be understood that the nouns in the singular form corresponding to the term may include one or more things unless the relevant context clearly indicates otherwise. As used herein, each phrase in the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C" and "at least one of A, B or C" may include any one or all possible combinations of the items listed together with the corresponding one of the multiple phrases. As used herein, terms such as "1st" and "2nd" or "first" and "second" may be used to simply distinguish the corresponding component from another component, and do not limit the component in other aspects (e.g., importance or order). It will be understood that if an element (e.g., a first element) is referred to as being "coupled to" or "connected to" another element (e.g., a second element) when the term "operably" or "communicatively" is used or when the term "operably" or "communicatively" is not used, it means that the element can be directly (e.g., wired) connected to the other element, wirelessly connected to the other element, or connected to the other element via a third element.

[0124] As used in connection with various embodiments of the present disclosure, the term "module" may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with other terms (e.g., "logic," "logic block," "portion," or "circuit"). A module may be a single integrated component adapted to perform one or more functions or a minimum unit or portion of the single integrated component. For example, according to an embodiment, a module may be implemented in the form of an application specific integrated circuit (ASIC).

[0125] The various embodiments described herein may be implemented as software (e.g., program 140) including one or more instructions stored in a storage medium (e.g., internal memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). For example, under the control of a processor, a processor (e.g., processor 120) of the machine (e.g., electronic device 101) may call at least one of the one or more instructions stored in the storage medium and execute the at least one instruction with or without the use of one or more other components. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Among them, the term "non-transitory" only means that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but the term does not distinguish between the case where data is semi-permanently stored in the storage medium and the case where data is temporarily stored in the storage medium.

[0126] According to an embodiment, the method according to various embodiments of the present disclosure may be included and provided in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be released in the form of a machine-readable storage medium (e.g., a compact disk read-only memory (CD-ROM)), or may be downloaded via an application store (e.g., Play Store TM ) the computer program product may be published (e.g., downloaded or uploaded) online, or the computer program product may be distributed (e.g., downloaded or uploaded) directly between two user devices (e.g., smart phones). If published online, at least part of the computer program product may be temporarily generated, or at least part of the computer program product may be at least temporarily stored in a machine-readable storage medium (such as a memory of a manufacturer's server, a server of an application store, or a forwarding server).

[0127] According to various embodiments, each of the above-mentioned components (e.g., a module or a program) may include a single entity or multiple entities, and some of the multiple entities may be separately arranged in different components. According to various embodiments, one or more of the above-mentioned components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., a module or a program) may be integrated into a single component. In this case, according to various embodiments, the integrated component may still perform the one or more functions of each of the multiple components in the same or similar manner as a corresponding one of the multiple components performing one or more functions before integration. According to various embodiments, the operations performed by a module, a program or another component may be performed sequentially, in parallel, repeatedly or in a heuristic manner, or one or more of the operations may be run or omitted in a different order, or one or more other operations may be added.

Claims

1. An electronic device (101), comprising: Shell (200; 210; 220); as well as an electronic pen (300) detachable from the housing, The electronic pen (300) comprises: Shell (310); A pen tip (320) is arranged at one end (311) of the shell (310) and protrudes from the one end (311) to the outside of the shell (310); A rod (330) extending from the pen tip to the interior of the housing; Core (340), comprising: A first portion (341), facing the one end (311) of the shell (310), comprises a first material (m1); A second portion (342), contacting the first portion (341), comprising a second material (m2); and a through hole (350) penetrating the first portion (341) and the second portion (342) to accommodate at least a portion of the rod (330); and a conductive coil (360) surrounding at least a portion of the second portion (342), The magnetic flux density (b1) of the first material (m1) is greater than the magnetic flux density (b2) of the second material (m2).

2. The electronic device (101) according to claim 1, further comprising: A display (160; 230; 235) comprising an electromagnetic induction panel (410) electrically interacting with the electronic pen (300); as well as The processor (120) is configured to obtain input information from the electrical interaction between the electronic pen (300) and the electromagnetic induction panel (410).

3. The electronic device (101) according to claim 2, further comprising: A magnet (420; 421; 422) is arranged between the display (160; 230; 235) and the housing (200; 210; 220), facing a side surface (213; 223) of the housing (200; 210; 220).

4. The electronic device (101) according to claim 1, The shell (310) comprises: Flat area (310a; 311a; 312a), extending in the longitudinal direction of the electronic pen (300); as well as The curved area (310b; 311b; 312b) is formed from the flat area (310a; 311a; 312a) extends and together with the flat area defines the interior of the shell.

5. The electronic device (101) according to claim 1, A cross section of the shell (310) has a track shape, and a length (d1) of a major axis of the track shape is longer than a length of a minor axis (d2).

6. The electronic device (101) according to claim 5, The length (d2) of the minor axis of the one cross section is smaller than the length (d3) corresponding to the thickness of the side surface (213; 223) of the shell (200; 210; 220).

7. The electronic device (101) according to claim 5, The core (340) has a track shape corresponding to the one cross section of the shell (310) so as to be disposed in the shell (310).

8. The electronic device (101) according to claim 1, The housing (200; 210; 220) comprises: A first shell (210) comprising a first surface (211) and a second surface (212) opposite to the first surface (211); as well as The second housing (220) comprises a third surface (221) and a fourth surface (222) opposite to the third surface (221). The electronic device (101) further comprises: a hinge structure (260) configured to provide a folded state or an unfolded state by rotatably coupling the first shell (210) and the second shell (220), wherein in the folded state, the first surface (211) and the third surface (221) face each other, and in the unfolded state, the direction faced by the first surface (211) corresponds to the direction faced by the third surface (221); as well as A flexible display (230) is arranged on the first surface (211) and the third surface (221) across the hinge structure (260).

9. The electronic device (101) according to claim 8, further comprising: A first magnet (421) is disposed between the first surface (211) and the second surface (212); as well as a second magnet (422) disposed between the third surface (221) and the fourth surface (222) and facing the first magnet (421) in the folded state, The first magnet (421) is configured to maintain the folded state by having a different polarity from that of the second magnet (422).

10. The electronic device (101) according to claim 1, The electronic pen (300) further comprises: a printed circuit board (440); and A resonant circuit (450), arranged on the printed circuit board (440), comprises a variable capacitor (461), The variable capacitor (461) is configured to change the capacitance of the resonant circuit (450) when the rod (330) moves in a first direction as the pen tip (320) is pressed or when the rod (330) moves in a second direction opposite to the first direction as the pressure is released.

11. The electronic device (101) according to claim 10, wherein the first portion (341) of the core (340) includes a first region (340a) protruding in the second direction relative to the conductive coil (360), and The second portion (342) of the core (340) includes a second region (340b) protruding in the first direction relative to the conductive coil (360).

12. The electronic device (101) according to claim 1, The pen tip (320) and the rod (330) comprise conductive materials.

13. The electronic device (101) according to claim 1, wherein the first material (m1) comprises metal powder, and The second material (m2) includes ferrite.

14. The electronic device (101) according to claim 1, The magnetic permeability (p1) of the first material (m1) is smaller than the magnetic permeability (p2) of the second material (m2).

15. The electronic device (101) according to claim 1, The conductive coil (360) further surrounds at least a portion of the first portion (341).

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