Electronic device having flexible display

Abstract

An electronic device according to one embodiment of the present disclosure may include a first housing. The electronic device may include a second housing connected to the first housing in a foldable manner by means of a hinge module. The electronic device may include a flexible display supported by the first housing and the second housing. The flexible display may include a glass layer which has a first surface and a second surface, provided opposite to the first surface, and includes a plurality of first patterns recessed from the first surface and a plurality of second patterns recessed from the second surface. The flexible display may include a first filler which fills the plurality of first patterns. The flexible display may include a second filler which fills the plurality of second patterns and is not as hard as the first filler.

Description

Electronic devices with flexible displays

[0001] Various embodiments of the present disclosure relate to an electronic device having a flexible display.

[0002] With the advancement of electronics, information, and communication technologies, a variety of functions are being integrated into a single portable communication device or electronic device. For example, smartphones incorporate functions such as audio playback, imaging, and electronic notebooks in addition to communication functions. Furthermore, the installation of additional applications allows smartphones to offer even more diverse functions.

[0003] As the use of personal or portable communication devices such as smartphones becomes more widespread, user demand for portability and ease of use is increasing. For example, a touchscreen display, while functioning as an output device that displays visual information, can also provide a virtual keypad that replaces mechanical input devices (e.g., button-type input devices). This allows portable communication devices or electronic devices to be miniaturized while still offering the same or improved usability (e.g., larger screens). On the other hand, the commercialization of flexible displays, such as foldable or rollable displays, is expected to further enhance the portability and ease of use of electronic devices.

[0004] Various embodiments of the present disclosure can provide a flexible display in which a plurality of patterns are provided in a bending region and a filling member having different hardnesses is filled in the plurality of patterns.

[0005] An electronic device according to one embodiment of the present disclosure may include a first housing. The electronic device may include a second housing foldably connected to the first housing through a hinge module. The electronic device may include a flexible display supported by the first housing and the second housing. The flexible display may include a glass layer having a first surface and a second surface opposite the first surface, and including a plurality of first patterns recessed from the first surface and a plurality of second patterns recessed from the second surface. The flexible display may include a first filling member filled in the plurality of first patterns. The flexible display may include a second filling member filled in the plurality of second patterns and having a lower hardness than the first filling member.

[0006] Various embodiments of the present disclosure can reduce the difference in touch sensation between the glass layer and the filling member by filling the plurality of first patterns exposed to the outside with a first filling member having substantially the same hardness as the glass layer, in a glass layer having a plurality of patterns formed in an area corresponding to a bending area of ​​a flexible display.

[0007] In addition, the bendability of the flexible display can be improved by filling a second filling member having a lower hardness than the first filling member into a plurality of second patterns opposite to the plurality of first patterns.

[0008] The effects that can be achieved by the exemplary embodiments of the present disclosure can be clearly derived and understood by those skilled in the art to which the exemplary embodiments of the present disclosure pertain, from the following description. In other words, unintended effects resulting from the implementation of the exemplary embodiments of the present disclosure can also be derived by those skilled in the art from the exemplary embodiments of the present disclosure.

[0009] In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0010] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0011] FIG. 2A is a perspective view of an electronic device illustrating a flat stage or unfolding state according to one embodiment of the present disclosure.

[0012] FIG. 2b is a plan view illustrating the front of an electronic device in an unfolded state according to one embodiment of the present disclosure.

[0013] FIG. 2c is a plan view illustrating the rear surface of an electronic device in an unfolded state according to one embodiment of the present disclosure.

[0014] FIG. 3A is a perspective view of an electronic device illustrating a folding state according to one embodiment of the present disclosure.

[0015] FIG. 3b is a perspective view of an electronic device illustrating an intermediate state according to one embodiment of the present disclosure.

[0016] FIG. 4 is an exploded perspective view of an electronic device according to one embodiment of the present disclosure.

[0017] FIG. 5 is an exploded perspective view of a flexible display according to various embodiments of the present disclosure.

[0018] FIG. 6 is a plan view of a window layer according to various embodiments of the present disclosure.

[0019] Figure 7 is a cross-sectional view taken along line I-I' shown in Figure 6.

[0020] Figure 8 is an enlarged view of part A shown in Figure 6.

[0021] FIG. 9 is a graph showing the results of a strength simulation according to the thickness of a glass layer according to one embodiment of the present disclosure.

[0022] FIG. 10 is a graph showing the results of a pen pressure simulation according to the thickness of a first filling member according to one embodiment of the present disclosure.

[0023] Figure 11 is a manufacturing process diagram of a window layer according to one embodiment of the present disclosure.

[0024] FIG. 12 is a drawing showing a process of forming a plurality of patterns on a glass layer according to one embodiment of the present disclosure.

[0025] FIG. 13 is a drawing showing a process of filling a filling member into a plurality of patterns according to one embodiment of the present disclosure.

[0026] FIG. 14 is a cross-sectional view of a flexible display according to one embodiment of the present disclosure.

[0027] FIG. 15 is a cross-sectional view of a glass layer according to one embodiment of the present disclosure.

[0028] FIG. 16 is a drawing of an electronic device schematically illustrating an unfolded state according to one embodiment of the present disclosure.

[0029] FIG. 17 is a drawing of an electronic device schematically illustrating a folded state of FIG. 16 according to one embodiment of the present disclosure.

[0030] FIG. 18 is a drawing showing the shape and arrangement configuration of a plurality of patterns according to the bending direction of the flexible display of FIG. 16 according to one embodiment of the present disclosure.

[0031] FIG. 19 is a drawing showing a withdrawal state of an electronic device according to one embodiment of the present disclosure.

[0032] FIG. 20 is a drawing showing an insertion state of an electronic device according to one embodiment of the present disclosure.

[0033] FIG. 21 is a drawing showing the shape and arrangement configuration of a plurality of patterns according to bending of a flexible display in a bendable area according to one embodiment of the present disclosure.

[0034] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents, or substitutes of the embodiments.

[0035] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0036] The singular form of a noun corresponding to an item may include one or more items, unless the context clearly indicates otherwise.

[0037] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0038] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0039] When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0040] The terms “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0041] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0042] When we say that a component is “on” another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0043] The term “and / or” includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0044] The operating principle and embodiments of the present invention will be described with reference to the attached drawings below.

[0045] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to various embodiments.

[0046] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0047] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0048] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0049] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0050] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0051] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0052] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0053] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0054] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0055] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0056] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0057] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0058] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0059] The camera module (180) can capture still images and moving images. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0060] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0061] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0062] The communication module (190) may support the establishment of 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 the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one 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 module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0063] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0064] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one 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 method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the at least one selected antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0065] According to various embodiments, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0066] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0067] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0068] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0069] FIG. 2A is a perspective view of an electronic device in a flat stage or unfolding state according to an embodiment of the present disclosure. FIG. 2B is a plan view illustrating a front side of the electronic device in a flat stage or unfolding state according to an embodiment of the present disclosure. FIG. 2C is a plan view illustrating a rear side of the electronic device in a unfolding state according to an embodiment of the present disclosure. FIG. 3A is a perspective view of an electronic device in a folded state according to an embodiment of the present disclosure. FIG. 3B is a perspective view of an electronic device in an intermediate state according to an embodiment of the present disclosure. FIG. 4 is an exploded perspective view of an electronic device in accordance with an embodiment of the present disclosure.

[0070] Referring to FIGS. 2A to 4, the electronic device (200) may include a pair of housings (210, 220) (e.g., foldable housings) that are rotatably coupled to face each other and foldable with respect to a hinge module (240). According to one embodiment, the electronic device (200) may include a flexible display (300) (e.g., display (160) of FIG. 1) that is arranged in an area formed by the pair of housings (210, 220). According to one embodiment, the first housing (210) and the second housing (220) may be arranged on both sides with respect to a folding axis (axis F) as the center, and may have a shape that is substantially symmetrical with respect to the folding axis (e.g., axis F). According to one embodiment, the angle or distance between the first housing (210) and the second housing (220) may vary depending on whether the state of the electronic device (200) is a flat stage or unfolding state, a folding state, or an intermediate state.

[0071] A pair of housings (210, 220) may include a first housing (210) (e.g., a first housing structure) coupled with a hinge module (240) and a second housing (220) (e.g., a second housing structure) coupled with the hinge module (240). In one embodiment, the first housing (210) may include, in an unfolded state, a first surface (211) facing a first direction (e.g., a front direction) (z-axis direction) and a second surface (212) facing a second direction (e.g., a rear direction) (-z-axis direction) opposite to the first surface (211).

[0072] According to one embodiment, the second housing (220) may include a third face (221) facing a first direction (z-axis direction) and a fourth face (222) facing a second direction (-z-axis direction) in an unfolded state. According to one embodiment, the electronic device (200) may be operated in such a manner that, in an unfolded state, the first face (211) of the first housing (210) and the third face (221) of the second housing (220) face substantially the same first direction (z-axis direction), and in a folded state, the first face (211) and the third face (221) face each other.

[0073] According to one embodiment, the electronic device (200) may be operated such that, in an unfolded state, the second face (212) of the first housing (210) and the fourth face (222) of the second housing (220) face substantially in the same second direction (-z-axis direction), and in a folded state, the second face (212) and the fourth face (222) face in opposite directions. For example, in a folded state, the second face (212) may face in the first direction (z-axis direction), and the fourth face (222) may face in the second direction (-z-axis direction).

[0074] According to one embodiment, the first housing (210) may include a first side frame (213) that at least partially forms an exterior of the electronic device (200) and a first rear cover (214) that is coupled with the first side frame (213) and forms at least a portion of a second side (212) of the electronic device (200). According to one embodiment, the first side frame (213) may include a first side (213a), a second side (213b) that extends from one end of the first side (213a), and a third side (213c) that extends from the other end of the first side (213a). According to one embodiment, the first side frame (213) may be formed into a rectangular (e.g., square or rectangular) shape through the first side (213a), the second side (213b), and the third side (213c).

[0075] According to one embodiment, the second housing (220) may include a second side frame (223) that at least partially forms an exterior of the electronic device (200) and a second rear cover (224) that is coupled to the second side frame (223) and forms at least a portion of a fourth side (222) of the electronic device (200). According to one embodiment, the second side frame (223) may include a fourth side (223a), a fifth side (223b) that extends from one end of the fourth side (223a), and a sixth side (223c) that extends from the other end of the fourth side (223b). According to one embodiment, the second side frame (223) may be formed into a rectangular shape through the fourth side (223a), the fifth side (223b), and the sixth side (223c).

[0076] According to one embodiment, the pair of housings (210, 220) are not limited to the illustrated shapes and combinations, and may be implemented by other shapes or combinations and / or combinations of parts. For example, in some embodiments, the first side frame (213) may be formed integrally with the first rear cover (214), and the second side frame (223) may be formed integrally with the second rear cover (224).

[0077] According to one embodiment, in the electronic device (200), in the unfolded state, the second side (213b) of the first side frame (213) and the fifth side (223b) of the second side frame (223) can be connected without a gap. According to one embodiment, in the electronic device (200), in the unfolded state, the third side (213c) of the first side frame (213) and the sixth side (223c) of the second side frame (223) can be connected without a gap. According to one embodiment, in the electronic device (200), in the unfolded state, the combined length of the second side (213b) and the fifth side (223b) can be longer than the length of the first side (213a) and / or the fourth side (223a). Additionally, the combined length of the third side (213c) and the sixth side (223c) may be configured to be longer than the length of the first side (213a) and / or the fourth side (223a).

[0078] In one embodiment, the first side frame (213) and / or the second side frame (223) may be formed of metal or may further include a polymer that is injected into the metal. In one embodiment, the first side frame (213) and / or the second side frame (223) may also include at least one conductive portion (216 and / or 226) that is electrically segmented through at least one segment (2161, 2162 and / or 2261, 2262) formed of polymer. In this case, the at least one conductive portion may be electrically connected to a wireless communication circuit included in the electronic device (200) and used as an antenna that operates in at least one designated band (e.g., a legacy band).

[0079] According to one embodiment, the first rear cover (214) and / or the second rear cover (224) may be formed by, for example, at least one or a combination of two of coated or colored glass, ceramic, polymer, or metal (e.g., aluminum, stainless steel (STS), or magnesium).

[0080] According to one embodiment, the flexible display (300) may be arranged to extend from a first surface (211) of the first housing (210) across the hinge module (240) to at least a portion of a third surface (221) of the second housing (220). For example, the flexible display (300) may include a first planar portion (230a) substantially corresponding to the first surface (211), a second planar portion (230b) corresponding to the third surface (221), and a bendable portion (230c) connecting the first planar portion (230a) and the second planar portion (230b) and corresponding to the hinge module (240). According to one embodiment, the electronic device (200) may include a first protective cover (215) (e.g., a first protective frame or a first decorative member) coupled along an edge of the first housing (210). According to one embodiment, the electronic device (200) may include a second protective cover (225) (e.g., a second protective frame or a second decorative member) coupled along an edge of the second housing (220). According to one embodiment, the first protective cover (215) and / or the second protective cover (225) may be formed of a metal or polymer material. According to one embodiment, the first protective cover (215) and / or the second protective cover (225) may be used as a decoration member. According to one embodiment, the flexible display (300) may be positioned such that an edge of the first flat portion (230a) is interposed between the first housing (210) and the first protective cover (215). According to one embodiment, the flexible display (300) may be positioned such that an edge of the second flat portion (230b) is interposed between the second housing (220) and the second protective cover (225). According to one embodiment, the flexible display (300) can be positioned so that the edge of the flexible display (300) corresponding to the protective cap is protected through a protective cap (235) placed in an area corresponding to the hinge module (240).Therefore, the flexible display (300) can be substantially protected at the edges from the outside.

[0081] According to one embodiment, the electronic device (200) may include a hinge housing (241) (e.g., a hinge cover) that supports the hinge module (240) and is positioned so as to be exposed to the outside when the electronic device (200) is in a folded state and is introduced into the first space and the second space when the electronic device (200) is in an unfolded state, thereby being invisible from the outside.

[0082] According to one embodiment, the electronic device (200) may include a sub-display (231) (e.g., a second display) that is arranged separately from the flexible display (300) (e.g., a first display). According to one embodiment, the sub-display (231) is arranged to be at least partially exposed on the second side (212) of the first housing (210), so that when in a folded state, it may display status information of the electronic device (200) that replaces the display function of the flexible display (300). According to one embodiment, the sub-display (231) may be arranged to be visible from the outside through at least a portion of the first rear cover (214). In some embodiments, the sub-display (231) may be arranged on the fourth side (222) of the second housing (220). In this case, the sub-display (231) may be arranged to be visible from the outside through at least a portion of the second rear cover (224).

[0083] According to one embodiment, the electronic device (200) may include at least one of an input device (e.g., a microphone), an audio output device (201, 202), a sensor module (204), a camera device (e.g., a first camera device (205) and / or a second camera device (208)), a key input device (206), or a connector port (207). In the illustrated embodiment, the input device (e.g., a microphone), an audio output device (201, 202), a sensor module (204), a camera device (e.g., a first camera device (205) and / or a second camera device (208)), a key input device (206), or a connector port (207) refers to a hole or shape formed in the first housing (210) or the second housing (220), but may be defined to include an actual electronic component (e.g., an input device, an audio output device, a sensor module, or a camera device) disposed inside the electronic device (200) and operating through the hole or shape.

[0084] In one embodiment, the input device may include at least one microphone (203) disposed in the second housing (220). In some embodiments, the input device may include a plurality of microphones (203) disposed so as to detect the direction of sound. In some embodiments, the plurality of microphones (203) may be disposed at appropriate locations in the first housing (210) and / or the second housing (220). In one embodiment, the audio output devices (201, 202) may include speakers. In one embodiment, the speakers may include a call receiver (201) disposed in the first housing (210) and a speaker (202) disposed in the second housing (220). In some embodiments, the input device, the audio output device (201, 202), and the connector port (207) are disposed in a space provided in the first housing (210) and / or the second housing (220) of the electronic device (200), and can be exposed to the external environment through at least one hole formed in the first housing (210) and / or the second housing (220). According to one embodiment, the at least one connector port (207) can be used to transmit and receive power and / or data with an external electronic device. In some embodiments, the at least one connector port (e.g., an ear jack hole) can also accommodate a connector (e.g., an ear jack) for transmitting and receiving audio signals with the external electronic device. In some embodiments, the hole formed in the first housing (210) and / or the second housing (220) can be used in common for the input device and the audio output device (201, 202). In some embodiments, the audio output device (201, 202) may include a speaker (e.g., a piezo speaker) that operates without the holes formed in the first housing (210) and / or the second housing (220).

[0085] According to one embodiment, the sensor module (204) can generate an electrical signal or data value corresponding to an internal operating state of the electronic device (200) or an external environmental state. The sensor module (204) can detect an external environment, for example, through a first surface (211) of the first housing (210). In some embodiments, the electronic device (200) may further include at least one sensor module arranged to detect an external environment through a second surface (212) of the first housing (210). According to one embodiment, the sensor module (204) (e.g., an illuminance sensor) can be arranged under the flexible display (300) to detect an external environment through the flexible display (300). According to one embodiment, the sensor module (204) may include at least one of a gesture sensor, a gyro sensor, a pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, an illumination sensor, a proximity sensor, a biometric sensor, an ultrasonic sensor, or an illumination sensor.

[0086] According to one embodiment, the camera device (e.g., the first camera device (205) and / or the second camera device (208)) may include a first camera device (205) (e.g., a front camera device) disposed on a first side (211) of a first housing (210) and a second camera device (208) disposed on a second side (212) of the first housing (210). The electronic device (200) may further include a flash (209) disposed near the second camera device (208). According to one embodiment, the camera device (e.g., the first camera device (205) and / or the second camera device (208)) may include one or more lenses, an image sensor, and / or an image signal processor. The flash (209) may include, for example, a light emitting diode or a xenon lamp. According to one embodiment, the camera device (e.g., the first camera device (205), and / or the second camera device (208)) may be arranged such that two or more lenses (a wide-angle lens, an ultra-wide-angle lens, or a telephoto lens) and image sensors are positioned on one side (e.g., the first side (211), the second side (212), the third side (221), or the fourth side (222)) of the electronic device (200). In some embodiments, the camera device (e.g., the first camera device (205), and / or the second camera device (208)) may also include lenses and image sensors for time of flight (TOF).

[0087] According to one embodiment, the key input device (206) (e.g., a key button) may be disposed on a third side (213c) of the first side frame (213) of the first housing (210). In some embodiments, the key input device (206) may also be disposed on at least one of the other sides (213a, 213b) of the first housing (210) and / or the sides (223a, 223b, 223c) of the second housing (220). In some embodiments, the electronic device (200) may not include some or all of the key input devices (206), and the key input devices (206) that are not included may be implemented in another form, such as a soft key, on the flexible display (300). In some embodiments, the key input device (206) may be implemented using a pressure sensor included in the flexible display (300).

[0088] According to one embodiment, some of the camera devices (e.g., the first camera device (205) and / or the second camera device (208)) or the sensor modules (204) may be arranged to be exposed through the flexible display (300). For example, the first camera device (205) or the sensor modules (204) may be arranged to be in contact with the external environment through an opening (e.g., a through hole) at least partially formed in the flexible display (300) in the internal space of the electronic device (200). According to one embodiment, some of the sensor modules (204) may be arranged to perform their functions without being visually exposed through the flexible display (300) in the internal space of the electronic device (200). For example, in this case, an area of ​​the flexible display (300) facing the sensor modules may not require an opening.

[0089] Referring to FIG. 3B, the electronic device (200) may be operated to maintain an intermediate state through the hinge module (240). In this case, the electronic device (200) may control the flexible display (300) to display different contents on the display area corresponding to the first side (211) and the display area corresponding to the third side (221). According to one embodiment, the electronic device (200) may be operated in a substantially unfolded state (e.g., the unfolded state of FIG. 2A) and / or a substantially folded state (e.g., the folded state of FIG. 3A) based on a certain inflection angle (e.g., the angle between the first housing (210) and the second housing (220) when in the intermediate state) through the hinge module (240). For example, the electronic device (200) may be operated to transition to an unfolded state (e.g., the unfolded state of FIG. 2a) when a pressure is applied in the unfolding direction (direction B) through the hinge module (240) while the electronic device (200) is in an unfolded state at a certain inflection angle. For example, the electronic device (200) may be operated to transition to a closed state (e.g., the folded state of FIG. 3a) when a pressure is applied in the folding direction (direction C) through the hinge module (240) while the electronic device (200) is in an unfolded state at a certain inflection angle. In one embodiment, the electronic device (200) may be operated to maintain an unfolded state at various angles through the hinge module (240).

[0090] Referring to FIG. 4, the electronic device (200) may include a first side frame (213), a second side frame (223), and a hinge module (240) rotatably connecting the first side frame (213) and the second side frame (223). According to one embodiment, the electronic device (200) may include a first support plate (2131) extending at least partially from the first side frame (213), and a second support plate (2231) extending at least partially from the second side frame (223). According to one embodiment, the first support plate (2131) may be formed integrally with the first side frame (213) or structurally coupled with the first side frame (213). Similarly, the second support plate (2231) may be formed integrally with the second side frame (223) or structurally coupled with the second side frame (223).

[0091] According to one embodiment, the electronic device (200) may include a flexible display (300) arranged to be supported by a first support plate (2131) and a second support plate (2231). According to one embodiment, the electronic device (200) may include a first rear cover (214) coupled with a first side frame (213) and providing a first space between the first support plate (2131) and the second rear cover (224) coupled with a second side frame (223) and providing a second space between the second support plate (2231). In some embodiments, the first side frame (213) and the first rear cover (214) may be formed integrally. In some embodiments, the second side frame (223) and the second rear cover (224) may be formed integrally. According to one embodiment, the electronic device (200) may include a first housing (210) (e.g., a first housing structure) provided through a first side frame (213), a first support plate (2131), and a first rear cover (214). According to one embodiment, the electronic device (200) may include a second housing (220) (e.g., a second housing structure) provided through a second side frame (223), a second support plate (2231), and a second rear cover (224). According to one embodiment, the electronic device (200) may include a sub-display (231) arranged to be visible from the outside through at least a portion of the first rear cover (214).

[0092] According to one embodiment, the electronic device (200) may include a first substrate assembly (261) (e.g., a main printed circuit board), a camera assembly (263), a first battery (271), or a first bracket (251) disposed in a first space between a first side frame (213) and a first rear cover (214).

[0093] According to one embodiment, the camera assembly (263) may include a plurality of camera devices (e.g., the camera devices of FIGS. 2A and 3A (e.g., the first camera device (205), and / or the second camera device (208)) and may be electrically connected to the first substrate assembly (261).

[0094] According to one embodiment, the first bracket (251) can provide a support structure and enhanced rigidity for supporting the first substrate assembly (261) and / or the camera assembly (263).

[0095] According to one embodiment, the electronic device (200) may include a second substrate assembly (262) (e.g., a sub-printed circuit board), an antenna (290) (e.g., a coil member), a second battery (272), or a second bracket (252) disposed in a second space between the second side frame (223) and the second rear cover (224).

[0096] According to one embodiment, the electronic device (200) may include a wiring member (280) (e.g., a flexible printed circuit board (FPCB)). The wiring member (280) according to one embodiment may be arranged to extend from the first substrate assembly (261) across the hinge module (240) to a plurality of electronic components (e.g., a second substrate assembly (262), a second battery (272), or an antenna (290)) disposed between the second side frame (223) and the second rear cover (224).

[0097] In one embodiment, the first substrate assembly (261), the second substrate assembly (262), and the wiring member (280) may be electrically connected to each other, operatively connected to each other, or formed integrally with each other. In one embodiment, since the first substrate assembly (261) and the second substrate assembly (262) are formed integrally and are capable of transmitting and receiving electrical signals or waves, the wiring member (280) may be omitted.

[0098] According to one embodiment, the electronic device (200) may include one or more batteries (e.g., a first battery (271) and / or a second battery (272)). For example, the one or more batteries may include at least one of a first battery (271) disposed in an area corresponding to a first housing (210) and a second battery (272) disposed in an area corresponding to a second housing (220). According to one embodiment, the electronic device (200) may include either one of the first battery (271) and / or the second battery (272), or may include both the first battery (271) and / or the second battery (272).

[0099] According to one embodiment, the electronic device (200) may include a flexible battery. The flexible battery may be arranged over at least a portion of each of the first housing (210) and the second housing (220). The flexible battery may be arranged to overlap a portion of an area corresponding to the first housing (210) and a portion of an area corresponding to the second housing (220). The flexible battery may include a battery hinge portion at a boundary where the first housing (210) and the second housing (220) are separated from each other. The battery hinge portion may be formed to have a physically thin thickness. The battery hinge portion is provided at a position corresponding to a folding axis (e.g., axis F), so that the flexible battery may be folded as the electronic device (200) is folded.

[0100] In one embodiment, the battery hinge of the flexible battery may be a physical or electrical connector. The flexible battery may include a first battery section, a second battery section, and a connector that electrically or operatively connects the first battery section and the second battery section. The first battery section and the second battery section may be electrically or operatively connected to each other through the connector. The connector is a component constituting the flexible battery and may be provided on the outside or inside of the flexible battery. However, in one embodiment, the connector may be a non-conductive connector that physically connects the first battery section and the second battery section.

[0101] According to one embodiment, the antenna (290) may include a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna. The antenna (290) may, for example, perform short-range communication with an external device or wirelessly transmit and receive power required for charging.

[0102] According to one embodiment, the electronic device (200) may include a hinge housing (241) (e.g., a hinge cover) that supports the hinge module (240) and is exposed to the outside when the electronic device (200) is in a folded state (e.g., the folded state of FIG. 3A) and is positioned so as to be invisible from the outside by being introduced into the first space and / or the second space when the electronic device (200) is in an unfolded state (e.g., the unfolded state of FIG. 2A).

[0103] According to one embodiment, the electronic device (200) may include a first protective cover (215) coupled along an edge of a first side frame (213). According to one embodiment, the electronic device (200) may include a second protective cover (225) coupled along an edge of a second side frame (223). According to one embodiment, the flexible display (300) may have an edge of a first planar portion (e.g., the first planar portion (230a) of FIG. 2B) protected by the first protective cover (215). According to one embodiment, the flexible display (300) may have an edge of a second planar portion (e.g., the second planar portion (230b) of FIG. 2B) protected by the second protective cover (225). According to one embodiment, the electronic device (200) may include a protective cap (235) positioned to protect an edge of a bendable portion (e.g., bendable portion (230c) of FIG. 2B) corresponding to a hinge module (240) of the flexible display (300).

[0104] FIG. 5 is an exploded perspective view of a flexible display according to various embodiments of the present disclosure.

[0105] Referring to FIG. 5, a flexible display (300) according to various embodiments may include a window layer (310), a polarizer (320) sequentially arranged on the back surface (e.g., the surface facing the -z axis) of the window layer (310), a display panel (330), a polymer layer (340), a metal sheet layer (350), and a reinforcing plate (370).

[0106] According to one embodiment, the window layer (310), the polarizing layer (320), the display panel (330), the polymer layer (340), and the metal sheet layer (350) may be arranged to span at least a portion of a first surface (e.g., the first surface (211) of FIG. 2A) of a first housing (e.g., the first housing (210) of FIG. 2A) and a third surface (e.g., the third surface (221) of FIG. 2A) of a second housing (e.g., the second housing (220) of FIG. 2A).

[0107] According to one embodiment, the reinforcing plate (370) may include a first reinforcing plate (371) facing the first housing (210) and a second reinforcing plate (372) facing the second housing (220).

[0108] According to one embodiment, the window layer (310), the polarizing layer (320), the display panel (330), the polymer layer (340), the metal sheet layer (350), and the reinforcing plate (370) may be attached to each other via an adhesive (P) (or, glue). For example, the adhesive (P) may include at least one of an optical clear adhesive (OCA), a pressure sensitive adhesive (PSA), a heat-reactive adhesive, a general adhesive, and / or a double-sided tape.

[0109] According to one embodiment, the display panel (330) may include a plurality of pixels and a wiring structure (e.g., an electrode pattern). According to one embodiment, the polarizing layer (320) may selectively transmit light generated from a light source of the display panel (330) and vibrating in a certain direction. According to one embodiment, the display panel (330) and the polarizing layer (320) may be formed integrally. According to one embodiment, the flexible display (300) may also include a touch panel (not shown).

[0110] In one embodiment, the polymer layer (340) may be disposed under the display panel (330) (e.g., in the -z-axis direction). For example, the polymer layer (340) may provide a dark background to ensure visibility of the display panel (330). In addition, the polymer layer (340) may be formed of a buffering material for buffering. In one embodiment, to ensure waterproofing of the flexible display (300), the polymer layer (340) may be removed or disposed under the metal sheet layer (350).

[0111] According to one embodiment, the metal sheet layer (350) may be formed into a shape that provides flexibility to the flexible display (300). According to one embodiment, the metal sheet layer (350) may include at least one of stainless steel (STS), Cu, Al, or metal CLAD (e.g., a laminated member in which STS and Al are alternately arranged).

[0112] According to one embodiment, the metal sheet layer (350) may include a first planar portion (351) corresponding to the first housing (210), a second planar portion (352) corresponding to the second housing (220), and a bending portion (353) connecting the first planar portion (351) and the second planar portion (352).

[0113] According to one embodiment, the bending portion (353) may include a plurality of openings (3531) arranged at a specified interval. According to one embodiment, the bending characteristic of the bending portion (353) may be determined through at least one of the size, shape, or arrangement density of at least some of the openings among the plurality of openings (3531). In one embodiment, the metal sheet layer (350) may include other alloy materials. In one embodiment, the metal sheet layer (350) may help reinforce the rigidity of an electronic device (e.g., the electronic device (200) of FIG. 2A), may shield ambient noise, and may be used to disperse heat emitted from surrounding heat-emitting components. In one embodiment, the metal sheet layer (350) may be made of fiber reinforced plastics (FRP) (e.g., carbon fiber reinforced plastics (CFRP) or glass fiber reinforced plastics (GFRP)) having rigid properties for supporting the display panel (330).

[0114] It can also be replaced with non-metallic sheet materials, such as plastics).

[0115] According to one embodiment, the flexible display (300) may include a digitizer (360) as a detection member that is disposed under the metal sheet layer (350) (e.g., in the -z-axis direction) and receives input from an electronic pen (e.g., a stylus). The digitizer (360) may include, for example, a coil member disposed on a dielectric substrate so as to detect a resonant frequency of an electromagnetic induction method applied from the electronic pen.

[0116] In one embodiment, the digitizer (360) may be disposed between the polymer layer (340) and the metal sheet layer (350), although the present disclosure is not limited thereto. For example, the digitizer (360) may be disposed between the metal sheet layer (350) and the reinforcing plate (370).

[0117] According to one embodiment, the flexible display (300) may include at least one functional member (not shown) disposed between the polymer layer (340) and the metal sheet layer (350), or under (e.g., in the -z-axis direction) the metal sheet layer (350). The functional member may include, for example, a graphite sheet for heat dissipation, an added display, a force touch FPCB, a fingerprint sensor FPCB, an antenna radiator for communication, or a conductive / non-conductive tape. In one embodiment, the functional member may be individually disposed in the first housing (210) and the second housing (220) if bending is not possible. In one embodiment, the functional member may be disposed from the first housing (210) to at least a portion of the second housing (220) through a hinge module (e.g., the hinge module (240) of FIG. 4) if bending is possible.

[0118] According to one embodiment, the electronic device (200) may be disposed under the flexible display (300) and may include a camera device (e.g., the first camera device (205) of FIG. 2A) that detects an external environment through the flexible display (300).

[0119] According to one embodiment, the electronic device (200) may include at least one sensor module (e.g., a sensor module (204) of FIG. 2A) (e.g., an ambient light sensor, a proximity sensor, or a TOF sensor) disposed under the flexible display (300).

[0120] In one embodiment, the polarizing layer (320), the display panel (330), the polymer layer (340), the metal sheet layer (350), the digitizer (360), and the reinforcing plate (370) may include through holes (3201, 3301, 3401, 3501, 3601, 3701). In one embodiment, the display panel (330) and / or the polarizing layer (320) may eliminate the need for through holes (3201, 3301) by controlling the transmittance of the corresponding area. In one embodiment, the size of the through holes (3201, 3301, 3401, 3501, 3601, 3701) may be formed based on the size of the camera device (205) and / or the angle of view of the camera device (205), and the sizes of each of the through holes (3201, 3301, 3401, 3501, 3601, 3701) may be different from each other.

[0121] According to one embodiment, the window layer (310) may include a glass layer (e.g., the glass layer (311) of FIG. 7). According to one embodiment, the glass layer (311) is disposed in an area corresponding to a bendable portion (e.g., the bendable portion (230c) of FIG. 2B) of the flexible display (300) and includes a plurality of patterns (e.g., a plurality of first patterns (3113) and a plurality of second patterns (3114) of FIG. 7) formed lower than a surface of the glass layer (311), thereby helping to improve the touch feeling and / or bendability of the flexible display (300).

[0122] According to one embodiment, the plurality of patterns (3113, 3114) may be filled with filling members (e.g., the first filling member (312) and the second filling member (313) of FIG. 7) having different moduli, hardnesses, or molecular weights inside each pattern, thereby improving the touch sensitivity and / or flexibility of the flexible display (300).

[0123] Below, the window layer (310) will be described in detail.

[0124] FIG. 6 is a plan view of a window layer according to various embodiments of the present disclosure. FIG. 7 is a cross-sectional view taken along line I-I' illustrated in FIG. 6. FIG. 8 is an enlarged view of portion A illustrated in FIG. 6.

[0125] Referring to FIGS. 6 to 8, a window layer (310) according to one embodiment may include a first region (310a) corresponding to a first housing (e.g., the first housing (210) of FIG. 2a) of an electronic device (e.g., the electronic device (200) of FIG. 2a), a second region (310b) corresponding to a second housing (e.g., the second housing (220) of FIG. 2a), and a third region (310c) corresponding to a bendable portion (e.g., the bendable portion (230c) of FIG. 2b).

[0126] According to one embodiment, the third region (310c) can be bendably deformed together with the display panel (e.g., the display panel (330) of FIG. 5) according to the folding operation of the electronic device (200) with respect to the folding axis (F).

[0127] According to one embodiment, the window layer (310) may include a glass layer (311) having a first side (3111) facing in an external direction of the electronic device (200) (e.g., +z-axis direction) and a second side (3112) facing in a direction of the display panel (330) opposite to the first side (3111) (e.g., -z-axis direction).

[0128] According to one embodiment, a polarizing layer (320) and / or a display panel (330) may be laminated on the lower side (e.g., in the -z-axis direction) of the glass layer (311). In one embodiment, the glass layer (311) (e.g., the second planarization layer (3131)) and the polarizing layer (320) and / or the display panel (330) may be attached to each other via an adhesive (P).

[0129] According to one embodiment, a coating layer (314) may be laminated on the first surface (3111) of the glass layer (311). According to one embodiment, the coating layer (314) may include at least one of a hard coating layer and / or an anti-fingerprint layer. In one embodiment, the coating layer (314) may be composed of a material having a higher hardness value than the glass layer (311) and / or the first filling member (312) described below. For example, the coating layer (314) may have a surface hardness of H (hardness) or higher. In one embodiment, the coating layer (314) may have a compound for anti-fingerprint coating on the surface. In one embodiment, the coating layer (314) may have hydrophobicity having a water contact angle of 95 degrees or higher.

[0130] According to one embodiment, the glass layer (311) may include a plurality of first patterns (3113) formed lower than the first surface (3111) on the first surface (3111) and spaced apart from each other by a predetermined interval. According to one embodiment, the glass layer (311) may include a plurality of second patterns (3114) formed lower than the second surface (3112) on the second surface (3112) and spaced apart from each other by a predetermined interval. In one embodiment, the plurality of first patterns (3113) and the plurality of second patterns (3114) may be spaced apart from each other with a thin portion of the glass layer (311) (e.g., the third spacer (3117) of FIG. 15) therebetween.

[0131] According to one embodiment, the plurality of first patterns (3113) and the plurality of second patterns (3114) may be positioned in a third region (310c) of the window layer (310). For example, the plurality of first patterns (3113) and the plurality of second patterns (3114) may be positioned in an region of the glass layer (311) corresponding to a bendable portion (e.g., bendable portion (230c) of FIG. 2B) of a flexible display (e.g., flexible display (300) of FIG. 2B).

[0132] According to one embodiment, the plurality of first patterns (3113) and the plurality of second patterns (3114) may have various shapes. For example, the plurality of first patterns (3113) and the plurality of second patterns (3114) may be formed to extend along the folding axis (F) to have a wave shape, as illustrated in (a) of FIG. 8. In one example, the plurality of first patterns (3113) and the plurality of second patterns (3114) may be formed to extend along the folding axis (F) to have a straight line (e.g., a horizontal line) shape, as illustrated in (b) of FIG. 8. In one example, the plurality of first patterns (3113) and the plurality of second patterns (3114) may be formed to extend along the folding axis (F) to have a zigzag (or chevron) shape, as illustrated in (c) of FIG.

[0133] According to one embodiment, the window layer (310) may include a first filling member (312) filled with a plurality of first patterns (3113). According to one embodiment, the window layer (310) may include a second filling member (313) filled with a plurality of second patterns (3114).

[0134] According to one embodiment, the first filling member (312) and the second filling member (313) may include an elastic material. In one embodiment, the first filling member (312) and the second filling member (313) may include a substantially transparent material that is initially filled into the patterns (3113, 3114) in a liquid or semi-solid form and then hardened over time or through light irradiation or chemical treatment. The first filling member (312) and the second filling member (313) may include, for example, a resin such as silicone, urethane, or acrylic. The first filling member (312) and the second filling member (313) may correspond to an optically clear resin (OCR).

[0135] According to one embodiment, the first filling member (312) may have a modulus, hardness, or molecular weight that is substantially the same as the modulus, hardness, or molecular weight of the glass layer (311) to reduce the difference in touch sensation between the glass layer (311) and the filling member (312). For example, the first filling member (312) may have a modulus of 20 MPA to 400 MPA. When a user touches (or swipes) the display, deformation / micro-movement of the filling member (312) is reduced, so that the difference in touch sensation between the glass layer (311) and the first filling member (312) may be reduced.

[0136] In one embodiment, the second filler member (313) may have a different modulus, hardness, or molecular weight than the first filler member (312). In one embodiment, the second filler member (313) may have a lower modulus, hardness, or molecular weight than the modulus, hardness, or molecular weight of the first filler member (312). For example, if the first filler member (312) has a modulus of 20 to 400 MPA, the second filler member (313) may be designed to have a modulus of 0.005 to 10 MPA.

[0137] For example, when the first filling member (312) and the second filling member (313) have the same modulus of 400 MPA, a folding resistance (or repulsive force) of 1.1532 e mm][N·mm] can be applied to the bendable portion (230c) of the flexible display (300). For example, when the first filling member (312) has a modulus of 400 MPA and the second filling member (313) has a modulus of 0.03 MPA, a folding resistance (or repulsive force) of 1.1532 e [N·mm] can be applied to the bendable portion (230c) of the flexible display (300). Compared to the case where the first filling member (312) and the second filling member (313) have the same modulus of 400 MPA, the folding resistance can be improved (reduced) by 24%.

[0138] As a result, by designing the modulus, hardness, or molecular weight of the second filling member (313) to be lower than that of the first filling member (312), the folding resistance (or repulsive force) that increases as the modulus, hardness, or molecular weight of the first filling member (312) increases can be offset.

[0139] According to one embodiment, the plurality of first patterns (3113) may be formed to have a predetermined depth (d1) from the first surface (3111). According to one embodiment, the plurality of second patterns (3114) may be formed to have a predetermined depth (d2) from the second surface (3112).

[0140] According to one embodiment, the depth (d1) of the plurality of first patterns (3113) and the depth (d2) of the plurality of second patterns (3114) may be substantially the same.

[0141] In one embodiment, the depth (d1) of the plurality of first patterns (3113) and the depth (d2) of the plurality of second patterns (3114) may be different. In one embodiment, the depth (d1) of the plurality of first patterns (3113) may be shallower than the depth (d2) of the plurality of second patterns (3114) (see FIG. 7).

[0142] For example, when the first filling member (312) has a modulus of 400 MPA, the second filling member (313) has a modulus of 0.03 MPA, and the depths of the plurality of patterns (3113, 3114) are the same (d1=d2), a folding resistance force (or repulsive force) of 1.1532e [N· mm] can be applied to the bendable portion (230c) of the flexible display (300).

[0143] For example, if the first filling member (312) has a modulus of 400 MPA, the second filling member (313) has a modulus of 0.03 MPA, and the depths of the plurality of patterns (3113, 3114) are different (d1≠d2), for example, if the ratio of the depth (d1) of the plurality of first patterns (3113) to the depth (d2) of the plurality of second patterns (3114) is 1:2.2, 6.4054e is applied to the bendable portion (230c) of the flexible display (300). -1 A folding resistance (or, rebound force) of [N·mm] can be applied. When the first filling member (312) has a modulus of 400 MPA, the second filling member (313) has a modulus of 0.03 MPA, and the depths of the plurality of patterns (3113, 3114) are the same, the folding resistance can be improved (reduced) by 27% compared to the case where the first filling member (312) and the second filling member (313) have the same modulus of 400 MPA, and the depths of the plurality of patterns (3113, 3114) are the same, the folding resistance can be improved (reduced) by 44%.

[0144] According to one embodiment, a first planarization layer (e.g., the first planarization layer (3121) of FIG. 14) may be laminated on the first surface (3111) of the glass layer (311). As illustrated in FIG. 7, the first planarization layer may be omitted. Hereinafter, an embodiment in which the first planarization layer (3121) is laminated on the window layer (310) will be described with reference to FIG. 14.

[0145] According to one embodiment, a second planarization layer (3131) may be laminated on the second surface (3112) of the glass layer (311). In one embodiment, the second planarization layer (3131) may induce the second surface (3112), which is roughened by the second filling member (313) filled in the plurality of second patterns (3114), to have a substantially flat surface. In one embodiment, the second planarization layer (3131) may be composed of substantially the same material as the second filling member (313). The second planarization layer (3131) may be formed together when the second filling member (313) is filled in the plurality of second patterns (3114).

[0146] FIG. 9 is a graph showing the results of a strength simulation according to the thickness of a glass layer according to one embodiment of the present disclosure.

[0147] The X-axis of Fig. 9 represents the thickness (e.g., H of Fig. 7) of the glass layer (e.g., the glass layer (311) of Fig. 7), the Y1-axis of Fig. 9 (the Y-axis corresponding to the left side of the graph) represents the pen drop height (cm), and the Y2-axis of Fig. 9 (the Y-axis corresponding to the right side of the graph) represents the pen pressure (kgf). At this time, the specifications of the pen used in the simulation can satisfy 5.8g and 0.3pi.

[0148] Referring to FIG. 9, the thickness (H) of the glass layer (e.g., the glass layer (311) of FIG. 7) according to one embodiment can be designed to be 100 μm or more. At this time, the glass layer (311) can satisfy a pen drop height of 100 cm and an impact resistance of 2.7 kgf or more.

[0149] FIG. 10 is a graph showing the results of a pen pressure simulation according to the thickness of a first filling member according to one embodiment of the present disclosure.

[0150] The X-axis of FIG. 10 represents the thickness (um) of the first filling member (e.g., the first filling member (312) of FIG. 7), and the Y-axis of FIG. 10 represents the maximum stress (or fracture strength) (MPa) of the glass layer (e.g., the glass layer (311) of FIG. 7).

[0151] Referring to FIG. 10, the thickness of the first filling member (312) according to one embodiment of the present disclosure may be designed to be 20 μm or more. Here, the thickness of the first filling member (312) may mean a value substantially the same as the plurality of first patterns (e.g., the depth (d1) of the plurality of first patterns (3113) of FIG. 7). At this time, the maximum stress (or breaking strength) of the glass layer (311) satisfies 3000 MPA and can maintain a pen pressure strength (5.8 g, 0.3 pi) of 0.3 kgf or more.

[0152] FIG. 11 is a process diagram for manufacturing a window layer according to one embodiment of the present disclosure. FIG. 12 is a diagram illustrating a process for forming a plurality of patterns on a glass layer according to one embodiment of the present disclosure. FIG. 13 is a diagram illustrating a process for filling a filling material into a plurality of patterns according to one embodiment of the present disclosure.

[0153] Referring to FIG. 11, a glass base material (e.g., a glass base material (311a) of FIG. 12) may be prepared (1110) for manufacturing a window layer (e.g., a window layer (310) of FIG. 5). According to one embodiment, the glass base material (311a) may be prepared to a thickness that protects the display and has pressure resistance characteristics according to contact (or pressure) of an external electronic device (e.g., an electronic pen). For example, the glass base material (311a) may be designed to have a thickness of 100 μm or more.

[0154] According to one embodiment, the manufacturing process of the window layer may include a process of forming a plurality of patterns (e.g., a plurality of first patterns (3113) and a plurality of second patterns (3114) of FIG. 7) on the glass layer (311) (1120). According to one embodiment, the process of forming a plurality of patterns (3113, 3114) on the glass layer (311) (1120) may include a process of forming a pattern line (1122) on a pattern portion (or pattern area) (L1, L2) of a glass base material (311a) using a laser. According to one embodiment, the process of forming a plurality of patterns (3113, 3114) on the glass layer (311) (1120) may include a process of etching the pattern line (1124).

[0155] Hereinafter, with reference to (a) to (e) of FIG. 12, a manufacturing process (1120) for forming a plurality of patterns (3113, 3114) on a glass layer (311) will be described.

[0156] According to one embodiment, a masking member (M) may be attached to the second surface (3112) of the glass substrate (311a) to prevent etching (see (a) of FIG. 12).

[0157] According to one embodiment, a plurality of pattern lines can be formed by irradiating a laser or a Bessel beam at a predetermined interval to a pattern portion (L1) located on a first surface (3111) of a glass base material (311a) (see (b) of FIG. 12). For example, a plurality of pattern lines can be vertically phase-changed on the pattern portion (L1) of the glass base material (311a) by the laser or Bessel beam. Here, the pattern portion (L1) may mean an area corresponding to a third area of ​​the window layer (310) (e.g., the third area (310c) of FIG. 6).

[0158] According to one embodiment, a glass base material (311b) having pattern lines formed on a first surface (3111) may be dipped into an etching solution to form a plurality of first patterns (3113) (see (c) of FIG. 12). Here, the etching solution may include various acid / base solutions. For example, the etching solution may include ammonium fluoride (NH4F), sulfuric acid (H2SO4), nitric acid (HNO3), fluorosilicic acid (H2SiF6), sodium hydroxide (NaOH), and / or hydrofluoric acid (HF). The etching solution may penetrate into the plurality of pattern lines phase-changed by a laser or a Bessel beam, and a plurality of first patterns (3113) having a predetermined depth may be formed.

[0159] According to one embodiment, after removing the masking member (M) attached to the second surface (3112) of the glass base material (311c), a laser or a Bessel beam is irradiated at predetermined intervals to the pattern portion (L2) located on the second surface (3112) of the glass base material (311c) to form a plurality of pattern lines (see (d) of FIG. 12).

[0160] According to one embodiment, a plurality of second patterns (3114) can be formed by dipping a glass substrate (311d) having pattern lines formed on a second surface (3112) into an etching solution ((e) of FIG. 12).

[0161] According to one embodiment, the manufacturing process of the window layer may include a process of filling filling members (312, 313) into a plurality of patterns (3113, 3114) provided on the glass layer (311) (1130).

[0162] Hereinafter, with reference to (a) to (f) of FIG. 13, a manufacturing process for filling filling members (312, 313) into a glass layer (311) is described.

[0163] According to one embodiment, after attaching a masking member (M) to the second surface (3112) of the glass layer (311) (see (a) of FIG. 13), a first filling member (312) can be applied across the first surface (3111) (see (b) of FIG. 13). At this time, the first filling member (312) can be filled into a plurality of first patterns (3113) provided on the first surface (3111).

[0164] According to one embodiment, in order to improve the texture of the glass layer (311), the extra first filling member (3121) together with the bubbles can be removed (see (c) of FIG. 13).

[0165] According to one embodiment, after attaching a masking member (M) to the first surface (3111) of the glass layer (311), the first filling member (312) can be cured for a predetermined period of time (see (d) of FIG. 13).

[0166] According to one embodiment, after detaching the masking member (M) attached to the second surface (3112) of the glass layer (311), the glass layer (311) may be flipped upside down and a second filling member (313) may be applied across the second surface (3112) (see (e) of FIG. 13).

[0167] According to one embodiment, after detaching the masking member (M) attached to the first surface (3111) along with removing bubbles, the second filling member (313) can be cured for a predetermined period of time. Thereafter, a protective vinyl (PF) can be attached to both sides (3111, 3112) of the glass layer (311) (see (f) of FIG. 13).

[0168] FIG. 14 is a cross-sectional view of a flexible display according to one embodiment of the present disclosure.

[0169] Referring to FIG. 14, a first planarization layer (3121) may be laminated on a first surface (3111) of a glass layer (311) according to one embodiment.

[0170] According to one embodiment, the first planarization layer (3121) can induce the first surface (3111) roughened by the first filling member (312) filled in the plurality of first patterns (3113) to have a substantially flat surface. In one embodiment, the first planarization layer (3121) can be composed of substantially the same material as the first filling member (312). The first planarization layer (3121) can be formed together when the first filling member (312) is filled in the plurality of first patterns (3113).

[0171] As the entire first surface (3111) of the glass layer (311) is exposed with the same material, the difference in touch sensation between regions (e.g., the first region (310a) to the third region (310c) of FIG. 6) of the window layer (e.g., the window layer (310) of FIG. 6) can be alleviated.

[0172] In addition, in the manufacturing process of the window layer, unlike as shown in (c) of FIG. 13, the process cost can be reduced as the process of removing the extra first filling member (3121) is deleted.

[0173] According to one embodiment, the thickness of the first flattening layer (3121) may range from 10 to 30 μm. When the thickness of the first flattening layer (3121) is appropriately set, the loss of touch sensitivity due to the material texture of the glass layer (311) can be alleviated.

[0174] FIG. 15 is a cross-sectional view of a glass layer according to one embodiment of the present disclosure.

[0175] Referring to FIG. 15, in one embodiment, a first spacer (3115) may be formed between a plurality of first patterns (3113). In one embodiment, the first spacer (3115) may be formed together with the formation of the plurality of first patterns (3113). In one embodiment, the thickness (Ta) of the first spacer (3115) may indicate a spacing between the plurality of first patterns (3113).

[0176] According to one embodiment, a second spacer (3116) may be formed between a plurality of second patterns (3114). In one embodiment, the second spacer (3116) may be formed together when the plurality of second patterns (3114) are formed. In one embodiment, the thickness (Tb) of the second spacer (3116) may indicate a gap between the plurality of second patterns (3114). In one embodiment, the thicknesses (Ta, Tb) of the first spacer (3115) and the second spacer (3116) may be substantially the same, but the present disclosure is not limited thereto.

[0177] According to one embodiment, a third spacer (3117) may be formed between a plurality of first patterns (3113) and a plurality of second patterns (3114). In one embodiment, the plurality of first patterns (3113) and the plurality of second patterns (3114) may be spaced apart from each other by a predetermined distance (Tc) with the third spacer (3117) therebetween. According to one embodiment, the third spacer (3117) between the plurality of first patterns (3113) and the plurality of second patterns (3114) may be formed as a plane substantially parallel to the glass layer (311). For example, the first spacer (3115) may be formed substantially perpendicular to the third spacer (3117). For example, the second spacer (3116) may be formed substantially perpendicular to the third spacer (3117). The first spacer (3115) and the second spacer (3116) can extend in opposite directions with respect to the third spacer (3117).

[0178] According to one embodiment, the glass layer (311) may have its surface chemically strengthened by alkaline ion exchange to protect the display. Here, the alkaline ions may include K+ ions. By exchanging Na+ ions and K+ ions inside the glass layer (311), compressive stress is formed on the surface of the glass layer (311), so that the impact strength of the glass layer (311) may be improved. At this time, the chemical strengthening treatment of the glass layer (311) may be performed based on the thinnest part (thin part) among the components of the glass layer (311), for example, the spacers (3115, 3116, 3117) described above.

[0179] Thickness (um) Compressive stress (MPa) 15 17 5 20 35 0 25 5 25 30 70 0 35 8 7 5 40 10 5 0 45 12 25 5 0 14 0 0

[0180] The above [Table 1] is a table showing the compressive stress applied to the thick portion of the glass layer (311) according to the thickness of the spacers (3115, 3116, 3117). According to one embodiment, the first spacer (3115), the second spacer (3116), and the third spacer (3117) may be formed to have a predetermined thickness for chemical strengthening treatment. In one embodiment, the thickness of the first spacer (3115), the second spacer (3116), and the third spacer (3117) may be designed to be 30 μm or more. In this case, as described in the above [Table 1], a compressive stress of 700 MPa, which is a compressive stress of 600 MPa or more, may be applied to the thick portion of the glass layer (311). Accordingly, during chemical strengthening treatment, the self-breaking phenomenon in which the glass layer (311) breaks by itself due to tensile stress occurring inside the glass layer (311) can be prevented.

[0181] FIG. 16 is a schematic diagram of an electronic device in an unfolded state according to one embodiment of the present disclosure. FIG. 17 is a schematic diagram of an electronic device in a folded state according to one embodiment of the present disclosure.

[0182] Referring to FIGS. 16 and 17, an electronic device (400) according to one embodiment may include a first housing (410), a second housing (420), and a third housing (430) that are rotatably arranged relative to each other.

[0183] According to one embodiment, the electronic device (400) may include a flexible display (440) arranged to be supported by a first housing (410), a second housing (420), and a third housing (430).

[0184] According to one embodiment, the first housing (410) and the second housing (420) can be rotatably connected to each other about the first folding axis (X1) via the first hinge module (461).

[0185] According to one embodiment, the second housing (420) and the third housing (430) can be rotatably connected to each other about the second folding axis (X2) via the second hinge module (462).

[0186] According to one embodiment, the first housing (410) and the second housing (420) can be operated in a first folding manner (e.g., an out-folding manner) via the first hinge module (461). For example, the first housing (410) and the second housing (420) can be arranged to face opposite directions so that the display areas facing each housing (410, 420) can be viewed from the outside when in a folded state.

[0187] According to one embodiment, the second housing (420) and the third housing (430) can be operated in a second folding manner (e.g., an in-folding manner) via the second hinge module (462). For example, when the second housing (420) and the third housing (430) are folded, the display areas facing each housing (420, 430) can be arranged to face each other.

[0188] According to one embodiment, the electronic device (400) can be operated in a state where the first housing (410), the second housing (420), and the third housing (430) are fully unfolded. According to one embodiment, the electronic device (400) can be operated in a state where only the first housing (410) and the second housing (420) are folded. According to one embodiment, the electronic device (400) can be operated in a state where the first housing (410), the second housing (420), and the third housing (430) are all folded.

[0189] In one embodiment, the display area facing the first housing (410) may be positioned toward the outside of the electronic device (400) so as to be visible to the user when the electronic device (400) is in a fully folded state. When the electronic device (400) is folded, the camera module (414) and the sensor module (415) may be positioned to detect the external environment through the display area corresponding to the first housing (410). In one embodiment, the camera module (414) and / or the sensor module (415) may be positioned under the flexible display (440) so as not to be visible from the outside.

[0190] According to one embodiment, the flexible display (440) may include a glass layer (441) (e.g., the glass layer (311) of FIG. 7) laminated thereon to protect the display panel (e.g., the display panel (330) of FIG. 7) and provide flexibility.

[0191] According to one embodiment, the glass layer (441) may include a first area (DA1) facing the first housing (410), a second area (DA2) facing the second housing (420), and a third area (DA3) facing the third housing (430).

[0192] According to one embodiment, the glass layer (441) may include a first folding area (F1) facing the first hinge module (461) between the first area (DA1) and the second area (DA2), and a second folding area (F2) facing the second hinge module (462) between the second area (DA2) and the third area (DA3).

[0193] According to one embodiment, the glass layer (441) may include a plurality of patterns (e.g., a plurality of first patterns (4413) and a plurality of second patterns (4414) of FIG. 18) for reducing the difference in touch sensation and / or providing flexibility in at least the first folding area (F1) and the second folding area (F2).

[0194] FIG. 18 is a drawing showing the shape and arrangement configuration of a plurality of patterns according to the bending direction of the flexible display of FIG. 16 according to one embodiment of the present disclosure.

[0195] Referring to FIG. 18, a glass layer (441) according to one embodiment (e.g., glass layer (311) of FIG. 7) may include a first side (4411) and a second side (4412) facing in the opposite direction from the first side (4411) and corresponding to the display panel (444).

[0196] According to one embodiment, the glass layer (441) may include a plurality of first patterns (4413) formed lower than the first surface (4411) at a specified interval on the first surface (4411). According to one embodiment, the glass layer (441) may include a plurality of second patterns (4414) formed lower than the second surface (4412) at a specified interval on the second surface (4412).

[0197] In one embodiment, a plurality of first patterns (4413) may be filled with a first filling member (442). In one embodiment, a plurality of second patterns (4414) may be filled with a second filling member (443).

[0198] According to one embodiment, the first filling member (442) may have a modulus, hardness, or molecular weight that is substantially the same as the modulus, hardness, or molecular weight of the glass layer (441) to reduce the difference in touch between the glass layer (441) and the filling member.

[0199] In one embodiment, the first filling member (442) and the second filling member (443) may be designed to have different moduli, hardness, or molecular weights, taking into account the flexibility in the folding regions (F1, F2). In one embodiment, the modulus, hardness, or molecular weight of the first filling member (442) may be set to be greater than the modulus, hardness, or molecular weight of the second filling member (443).

[0200] For example, the first filling member (442) may be designed to have a modulus of 20 to 400 MPA, and the second filling member (443) may be designed to have a modulus of 0.005 to 10 MPA.

[0201] According to one embodiment, the glass layer (441) can help improve flexibility by setting the depth of the plurality of first patterns (4413) arranged on the first surface (4411) to be shallower than the depth of the plurality of second patterns (4414) arranged on the second surface (4412), at least in the first folding area (F1).

[0202] Additionally, the glass layer (441) can help improve flexibility by setting the depth of the plurality of first patterns (4413) arranged on the first surface (4411) to be shallower than the depth of the plurality of second patterns (4414) arranged on the second surface (4412), at least in the second folding area (F2).

[0203] For example, in one electronic device (400), by appropriately setting the depth of a plurality of first patterns (4413) arranged on a first surface (4411) of a glass layer (441) and a plurality of second patterns (4414) arranged on a second surface (4412) depending on how the display panel (444) is bent in different directions, it is possible to help improve flexibility.

[0204] FIG. 19 is a drawing showing a withdrawal state of an electronic device according to one embodiment of the present disclosure. FIG. 20 is a drawing showing a retraction state of an electronic device according to one embodiment of the present disclosure.

[0205] Referring to FIGS. 19 and 20, the electronic device (500) may include a housing (510) (e.g., a first housing or a base housing) and a slide structure (560) (e.g., a second housing or a slide housing) that is at least partially movably coupled from the housing (510) and supports at least a portion of the flexible display (530).

[0206] In one embodiment, the slide structure (560) may include a bendable member (not shown) (e.g., a multi-joint hinge or a multi-bar assembly) that is coupled to one end and supports at least a portion of the flexible display (530). When the slide structure (560) performs a sliding motion within the housing (510), the bendable member may be at least partially retracted into the interior space of the housing (510) while supporting the flexible display (530).

[0207] According to one embodiment, the electronic device (500) may include a side member (540) including a front surface (510a) facing a first direction (e.g., +z-axis direction), a back surface (510b) facing a second direction opposite to the first direction (e.g., -z-axis direction), and a side surface (510c) surrounding a space between the front surface (510a) and the back surface (510b) and being at least partially exposed to the outside.

[0208] In one embodiment, the rear surface (510b) may be formed by a rear cover (521) coupled to the housing (510). In one embodiment, the rear cover (521) may be formed by a polymer, a coated or colored glass, a ceramic, a metal (e.g., aluminum, stainless steel, or magnesium), or a combination of at least two of the foregoing materials. In one embodiment, the rear cover (521) may be formed integrally with the housing (510).

[0209] In one embodiment, at least a portion of the side (510c) may be positioned to be exposed to the outside through the housing (510).

[0210] According to one embodiment, the side member (540) may include a first side (541) having a first length, a second side (542) extending in a direction perpendicular to the first side (541) to have a second length longer than the first length, a third side (543) extending parallel to the first side (541) from the second side (542) and having the first length, and a fourth side (544) extending parallel to the second side (542) from the third side (543) and having the second length.

[0211] According to one embodiment, the slide structure (560) supports the flexible display (530) and can expand the display area of ​​the flexible display (530) by being pulled out from the second side (542) toward the fourth side (544) (e.g., in the +x-axis direction), or can reduce the display area of ​​the flexible display (530) by being pulled in from the fourth side (544) toward the second side (542) (e.g., in the -x-axis direction).

[0212] According to one embodiment, the electronic device (500) may include a first side cover (540a) and a second side cover (540b) for covering the first side (541) and the third side (543).

[0213] According to one embodiment, the first side (541) and the third side (543) can be positioned so as not to be exposed to the outside through the first side cover (540a) and the second side cover (540b).

[0214] According to one embodiment, the electronic device (500) may include a flexible display (530) positioned to be supported by a slide structure (560).

[0215] According to one embodiment, the flexible display (530) may include a first portion (530a) (e.g., a planar portion) supported by a slide structure (560) and a second portion (530b) (e.g., a bendable portion or a bendable portion) extending from the first portion (530a) and at least partially supported by a bendable member.

[0216] According to one embodiment, at least a portion of the second portion (530b) may be arranged to be inserted into the internal space of the housing (510) and not exposed to the outside when the electronic device (500) is in a retracted state (e.g., when at least a portion of the slide structure (560) is inserted into the housing (510). In addition, at least a portion of the second portion (530b) may be at least partially exposed to the outside so as to extend from the first portion (530a) while being supported by at least a portion of the bendable member when the electronic device (500) is in a retracted state (e.g., when at least a portion of the slide structure (560) is withdrawn from the housing (510). Accordingly, the electronic device (500) may include a rollable type or slidable type electronic device in which the display area of ​​the flexible display (530) changes according to the movement of the slide structure (560) from the housing (510).

[0217] According to one embodiment, the slide structure (560) may be movably coupled in a sliding manner so as to be at least partially retracted or withdrawn from the housing (510). For example, the flexible display (530) may be configured to have a display area corresponding to a first width (w1) from the second side (542) to the fourth side (544) in the retracted state.

[0218] According to one embodiment, the flexible display (530) can be deformed to have a display area corresponding to a third width (w3) larger than the first width (w1) by moving at least a portion of the bendable member introduced into the interior of the housing (510) to the outside of the electronic device with an additional second width (w2) when the slide structure (560) is in an extended state. Accordingly, the flexible display (530) can have a display area that varies in response to the width of the electronic device that varies according to the sliding motion of the slide structure (560).

[0219] According to one embodiment, the electronic device (500) may include at least one of an input device (503), an audio output device (506, 507), a sensor module (504, 517), a camera module (505, 516), a connector port (508), and a key input device (not shown or an indicator (not shown)). In one embodiment, the electronic device (600) may omit at least one of the above-described components or may additionally include other components.

[0220] In one embodiment, the input device (503) may include a microphone. In one embodiment, the input device (503) may include a plurality of microphones arranged to detect the direction of sound.

[0221] In one embodiment, the audio output device (506, 507) may include speakers. The audio output device (506, 507) may include an external speaker (506) and a call receiver (507). In one embodiment, the audio output device (506, 507) may also include a speaker (e.g., a piezo speaker) that operates without a separate speaker hole.

[0222] According to one embodiment, the sensor module (504, 517) may generate an electrical signal or data value corresponding to an internal operating state of the electronic device (500) or an external environmental state. The sensor module (504, 517) may include, for example, a first sensor module (504) (e.g., a proximity sensor or a light sensor) disposed on the front of the electronic device and / or a second sensor module (517) (e.g., an HRM sensor) disposed on the rear.

[0223] According to one embodiment, the first sensor module (504) may be disposed on the front side (510a) of the electronic device (500), below the flexible display (530). The first sensor module (504) may further include at least one of a proximity sensor, an illuminance sensor, a time of flight (ToF) sensor, an ultrasonic sensor, a fingerprint recognition sensor, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, or a humidity sensor.

[0224] According to one embodiment, the camera devices (505, 516) may include a first camera device (505) disposed on the front (510a) of the electronic device (500) and a second camera device (516) disposed on the rear (510b). According to one embodiment, the electronic device (500) may include a flash (518) positioned near the second camera device (516). According to one embodiment, the camera devices (505, 516) may include one or more lenses, an image sensor, and / or an image signal processor. According to one embodiment, the first camera device (505) may be disposed under the flexible display (530) and configured to capture an object through a portion of an active area of ​​the flexible display (530). According to one embodiment, the flash (518) may include, for example, a light emitting diode or a xenon lamp. In one embodiment, two or more lenses (wide-angle and telephoto lenses) and image sensors may be arranged on one side of the electronic device (500).

[0225] According to one embodiment, the electronic device (500) may include at least one antenna (not shown). According to one embodiment, the at least one antenna may, for example, wirelessly communicate with an external electronic device or wirelessly transmit and receive power required for charging. In one embodiment, the antenna may include a legacy antenna, a mmWave antenna, a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna.

[0226] According to one embodiment, the flexible display (530) may include a glass layer (531) laminated to a display panel (e.g., display panel (330) of FIG. 5).

[0227] According to one embodiment, the glass layer (531) may include a plurality of patterns (e.g., a plurality of patterns (5313, 5314) of FIG. 21) formed in an area corresponding to a second portion (530b) that is at least partially bendably deformed when the slide structure (560) slides in a specified direction, thereby helping to secure rigidity and bendability of the flexible display (530).

[0228] FIG. 21 is a drawing showing the shape and arrangement configuration of a plurality of patterns according to bending of a flexible display in a bendable area according to one embodiment of the present disclosure.

[0229] Referring to FIG. 21, a glass layer (531) according to one embodiment (e.g., glass layer (311) of FIG. 7) may include a first side (5311) and a second side (5312) facing in the opposite direction from the first side (5311) and corresponding to the display panel (534).

[0230] According to one embodiment, the glass layer (531) may include a plurality of first patterns (5313) formed lower than the first surface (5311) at a specified interval on the first surface (5311). According to one embodiment, the glass layer (531) may include a plurality of second patterns (5314) formed lower than the second surface (5312) at a specified interval on the second surface (5312).

[0231] According to one embodiment, a plurality of first patterns (5313) may be filled with a first filling member (532). According to one embodiment, a plurality of second patterns (5314) may be filled with a second filling member (533).

[0232] According to one embodiment, the first filling member (532) may have a modulus, hardness, or molecular weight that is substantially the same as the modulus, hardness, or molecular weight of the glass layer (531) to reduce the difference in touch between the glass layer (441) and the filling member.

[0233] According to one embodiment, the first filling member (532) and the second filling member (533) may be designed to have different moduli, hardness, or molecular weights, taking into account the flexibility in an area corresponding to at least a portion of the second portion (530b) of the flexible display (530). In one embodiment, the modulus, hardness, or molecular weight of the second filling member (533) may be set to be smaller than the modulus, hardness, or molecular weight of the first filling member (532).

[0234] For example, the first filling member (532) may be designed to have a modulus of 20 to 400 MPA, and the second filling member (533) may be designed to have a modulus of 0.005 to 10 MPA.

[0235] According to one embodiment, the glass layer (531) may help improve flexibility by setting the depth of the plurality of first patterns (5313) arranged on the first surface (5311) to be shallower than the depth of the plurality of second patterns (5314) arranged on the second surface (5312) in an area corresponding to at least a portion of the second portion (530b) of the flexible display (530).

[0236] An electronic device (200) according to one embodiment of the present disclosure may include a first housing (210). The electronic device (200) may include a second housing (220) that is foldably connected to the first housing (210) through a hinge module (240). The electronic device (200) may include a flexible display (300) supported by the first housing (210) and the second housing (220). The flexible display (300) may include a glass layer (311) having a first surface (3111) and a second surface (3112) facing the first surface (3111), and including a plurality of first patterns (3113) recessed from the first surface (3111) and a plurality of second patterns (3114) recessed from the second surface (3112). The flexible display (300) may include a first filling member (312) filled with the plurality of first patterns (3113). The flexible display (300) may include a second filling member (313) filled with the plurality of second patterns (3114) and having a lower hardness than the first filling member (312).

[0237] According to one embodiment, the recessed depth (d1) of the plurality of first patterns (3113) may be substantially equal to the recessed depth (d2) of the plurality of second patterns (3114).

[0238] According to one embodiment, the recessed depth (d1) of the plurality of first patterns (3113) may be shallower than the recessed depth (d2) of the plurality of second patterns (3114).

[0239] According to one embodiment, the flexible display (300) may include a hard coating or anti-finger coating layer (314) laminated on the first surface (3111) of the glass layer (311).

[0240] According to one embodiment, the hardness of the first filling member (312) may be 20 to 400 MPa, and the hardness of the second filling member (313) may be 0.005 to 10 MPa.

[0241] According to one embodiment, the concave depth (d1) of the plurality of first patterns (3113) may be 20 um or more.

[0242] According to one embodiment, the glass layer (311) may have a surface that is chemically strengthened by exchange of alkali ions.

[0243] According to one embodiment, the pattern spacing (Ta) of the plurality of first patterns (3113), the pattern spacing (Tb) of the plurality of second patterns (3114), and the separation distance (Tc) between the plurality of first patterns (3113) and the plurality of second patterns (3114) may be 30 um or more.

[0244] According to one embodiment, the flexible display (300) may include at least one planarization layer (3121, 3131) laminated on the first surface (3111) and / or the second surface (3112) of the glass layer (311).

[0245] According to one embodiment, the at least one planarization layer (3121, 3131) may include a first planarization layer (3121) laminated on the first surface (3111) and a second planarization layer (3131) laminated on the second surface (3112). The first planarization layer (3121) may be formed of the same material as the first filling member (312), and the second planarization layer (3131) may be formed of the same material as the second filling member (313).

[0246] According to one embodiment, the flattening layer (3121) laminated on the first surface (3111) may be formed with a thickness in the range of 10 to 30 um.

[0247] According to one embodiment, the flexible display (300) may include a first flat portion (230a) facing the first housing (210), a second flat portion (230b) facing the second housing (220), and a bendable portion (230c) connecting the first flat portion (230a) and the second flat portion (230b) and facing the hinge module (240) and capable of bending.

[0248] According to one embodiment, the plurality of first patterns (3113) and the plurality of second patterns (3114) may be arranged in an area corresponding to the bendable portion (230c) of the flexible display (300).

[0249] According to one embodiment, the curvature of the region may be determined by the shape, arrangement and / or hardness of the plurality of patterns (3113, 3114).

[0250] According to one embodiment, the plurality of first patterns (3113) and the plurality of second patterns (3114) may be formed in a wave, stripe, or zigzag shape.

[0251] An electronic device (400, 500) according to one embodiment of the present disclosure may include at least one housing (410, 420, 430, 510). The electronic device (400, 500) may include a flexible display (440, 530) including a bending area (F1, F2, 530b) that is at least partially bendable through support of the at least one housing (410, 420, 430, 510). The flexible display (440, 530) may include a glass layer (441, 531) including a plurality of first patterns (4413, 5313) recessed from a first surface (4411, 5311) and a plurality of second patterns (4414, 5314) recessed from a second surface (4412, 5312) facing the first surface (4411, 5311). The flexible display (440, 530) may include a first filling member (442, 532) filled in the plurality of first patterns (4413, 5313). The flexible display (440, 530) may include a second filling member (443, 533) filled with the plurality of second patterns (4414, 5314) and having a lower hardness than the first filling member (442, 532).

[0252] According to one embodiment, the plurality of first patterns (4413, 5313) and the plurality of second patterns (4414, 5314) may be arranged in an area corresponding to the bending area (F1, F2, 530b).

[0253] According to one embodiment, the recessed depth of the plurality of first patterns (4413, 5313) may be substantially equal to the recessed depth of the plurality of second patterns (4414, 5314).

[0254] According to one embodiment, the recessed depth of the plurality of first patterns (4413, 5313) may be shallower than the recessed depth of the plurality of second patterns (4414, 5314).

[0255] A flexible display (300) including a flat portion (230a, 230b) and a bendable portion (230c) according to one embodiment of the present disclosure may include a glass layer (311) including a plurality of first patterns (3113) recessed from a first surface (3111) and a plurality of second patterns (3114) recessed from a second surface (3112) facing the first surface (3111). The flexible display (300) may include a first filling member (312) filled in the plurality of first patterns (3113). The flexible display (300) may include a second filling member (313) filled in the plurality of second patterns (3114) and having a hardness lower than that of the first filling member (312). The plurality of first patterns (3113) and the plurality of second patterns (3114) may be positioned in an area of ​​the glass layer (311) corresponding to the bendable portion (230c) of the flexible display (300).

Claims

1. In an electronic device (200), First housing (210); A second housing (220) foldably connected to the first housing (210) through a hinge module (240); and It includes a flexible display (300) supported by the first housing (210) and the second housing (220), The above flexible display (300) is A glass layer (311) having a first surface (3111) and a second surface (3112) opposite to the first surface (3111), and including a plurality of first patterns (3113) sunken from the first surface (3111) and a plurality of second patterns (3114) sunken from the second surface (3112); A first filling member (312) filled in the above plurality of first patterns (3113); and A device including a second filling member (313) filled in the plurality of second patterns (3114) and having a lower hardness than the first filling member (312).

2. In paragraph 1, The sinking depth (d1) of the plurality of first patterns (3113) is shallower than the sinking depth (d2) of the plurality of second patterns (3114).

3. In paragraphs 1 and 2, The above flexible display (300) is A device comprising a coating layer (314) laminated on the first surface (3111) of the glass layer (311) and having a hard coating or an anti-finger coating 4. In any one of paragraphs 1 to 3, A device wherein the depth of sinking (d1) of the plurality of first patterns (3113) is 20 um or more.

5. In any one of paragraphs 1 to 4, The above glass layer (311) is a device whose surface has been chemically strengthened through exchange of alkaline ions.

6. In paragraph 5, The pattern spacing (Ta) of the plurality of first patterns (3113), the pattern spacing (Tb) of the plurality of second patterns (3114), and the distance (Tc) between the plurality of first patterns (3113) and the plurality of second patterns (3114) are 30 um or more, the device.

7. In any one of paragraphs 1 to 6, The above flexible display (300) is A device comprising at least one planarizing layer (3121, 3131) laminated on the first surface (3111) and / or the second surface (3112) of the glass layer (311).

8. In paragraph 7, At least one of the above flattening layers (3121, 3131) It includes a first flattening layer (3121) laminated on the first surface (3111) and a second flattening layer (3131) laminated on the second surface (3112). The above first flattening layer (3121) is formed of the same material as the above first filling member (312). A device in which the second flattening layer (3131) is formed of the same material as the second filling member (313).

9. In any one of paragraphs 1 to 8, The above flexible display (300) is A device including a first flat portion (230a) facing the first housing (210), a second flat portion (230b) facing the second housing (220), and a bendable portion (230c) connecting the first flat portion (230a) and the second flat portion (230b) and facing the hinge module (240) and capable of bending.

10. In paragraph 9, The above plurality of first patterns (3113) and the above plurality of second patterns (3114) are, A device arranged in an area corresponding to the bendable portion (230c) of the flexible display (300).

11. In paragraph 10, A device in which the curvature of the above-mentioned area is determined by the shape, arrangement and / or hardness of the plurality of patterns (3113, 3114).

12. In any one of paragraphs 1 to 11, A device in which the plurality of first patterns (3113) and the plurality of second patterns (3114) are formed in a wave, stripe, or zigzag shape.

13. In electronic devices (400, 500), At least one housing (410, 420, 430, 510); and A flexible display (440, 530) comprising a bending area (F1, F2, 530b) that is at least partially bendable through the support of at least one housing (410, 420, 430, 510), The above flexible display (440, 530) A glass layer (441, 531) including a plurality of first patterns (4413, 5313) sunken from a first surface (4411, 5311) and a plurality of second patterns (4414, 5314) sunken from a second surface (4412, 5312) facing the first surface (4411, 5311); A first filling member (442, 532) filled in the plurality of first patterns (4413, 5313); and A device comprising a second filling member (443, 533) filled in the plurality of second patterns (4414, 5314) and having a lower hardness than the first filling member (442, 532).

14. In paragraph 13, A device wherein the plurality of first patterns (4413, 5313) and the plurality of second patterns (4414, 5314) are arranged in an area corresponding to the bending area (F1, F2, 530b).

15. In paragraph 13 or 14, The sinking depth of the plurality of first patterns (4413, 5313) is shallower than the sinking depth of the plurality of second patterns (4414, 5314).

Images