Mobile electronic device comprising rear cover, case for mobile electronic device, and rear cover manufacturing method

Abstract

A mobile electronic device comprising a rear cover, a case for a mobile electronic device, and a rear cover manufacturing method are disclosed. The mobile electronic device may comprise: a housing comprising a rear cover; and a display. The rear cover can include: a first plate having a first strength; a color layer disposed on a first surface of the first plate; a shielding layer; a second plate having a second strength; and a cover layer which is disposed on a second surface of the first plate and which has an uneven pattern formed thereon. The uneven pattern can be formed on the outer surface of the cover layer corresponding to the rear surface of the mobile electronic device. Other various embodiments identified through the present document are possible.

Description

A mobile electronic device including a rear cover, a case for a mobile electronic device, and a method for manufacturing a rear cover.

[0001] The present disclosure relates to a mobile electronic device including a rear cover, a case for the mobile electronic device, and a method for manufacturing the rear cover.

[0002] Electronic devices have come to be equipped with complex functions such as taking photos or videos, playing music or video files, playing games, receiving broadcasts, and supporting wireless internet, and are being implemented in the form of comprehensive multimedia devices. Accordingly, electronic devices are evolving into new forms in terms of hardware and software to enhance portability and convenience while satisfying user needs.

[0003] Cover components for mobile electronic devices (or portable electronic devices) not only provide protective functions for the device (e.g., shock or scratch resistance, water resistance) but can also contribute to reflecting the user's style and enhancing grip through a personalized appearance (design).

[0004] Cover components can possess different characteristics depending on their material or structure. The material and / or structure of a cover component can be a key factor in determining functionality, design, or tactile feel. For example, materials such as glass, plastics (e.g., polycarbonate (PC), thermoplastic polyurethane (TPU)), and ceramics may be used for cover components. Glass provides a soft tactile feel, is advantageous for implementing various colors and patterns, and is relatively resistant to scratches; however, compared to plastic, it is heavier and has lower hardness, making it vulnerable to impact or scratches and prone to breakage. Plastic is lighter and more flexible than glass, offering advantages in terms of weight and portability, but it has limitations in durability and can be sensitive to scratches. Ceramic provides greater durability compared to other materials, but it can be heavy and difficult to process.

[0005] In providing cover components for mobile electronic devices, efficient materials and / or structures that consider not only functionality but also design and tactile feel may be required.

[0006] The information described above may be provided as related art to aid in understanding the present disclosure. None of the foregoing is to be claimed as prior art related to the present disclosure, nor is it to be used to determine prior art related to the present disclosure.

[0007] A mobile electronic device according to one embodiment of the present disclosure may include a housing including a rear cover and a display. The display may include a screen area disposed within the housing and exposed through the front of the mobile electronic device. The rear cover may include a first plate having a first strength, a color layer disposed on a first surface facing a first direction among the two sides of the first plate, a shielding layer disposed on one side of the color layer, a second plate disposed on one side of the shielding layer and having a second strength higher than the first strength, and a cover layer disposed on a second surface facing a second direction opposite to the first direction among the two sides of the first plate and having an uneven pattern formed thereon. The uneven pattern may be formed on the outer surface of the cover layer corresponding to the rear of the mobile electronic device.

[0008] A case for a mobile electronic device according to one embodiment of the present disclosure may include a housing including a rear cover. The rear cover may include a first plate having a first strength, a color layer disposed on a first surface facing a first direction among the two sides of the first plate, a shielding layer disposed on one side of the color layer, a second plate disposed on one side of the shielding layer having a second strength higher than the first strength, and a cover layer disposed on a second surface facing a second direction opposite to the first direction among the two sides of the first plate, having an uneven pattern formed thereon. The uneven pattern may be formed on the outer surface of the cover layer corresponding to the rear of the mobile electronic device.

[0009] A method for manufacturing a rear cover for a mobile electronic device according to one embodiment of the present disclosure may include the steps of: printing a color film on a first surface facing a first direction among two surfaces of a first plate having a first strength; laminating an ultraviolet (UV) mold on the color film; laminating a reflective layer on the UV mold; laminating a shielding layer on the reflective layer; bonding the shielding layer and a second plate having a second strength higher than the first strength using an adhesive; and laminating a cover layer having an uneven pattern formed on a second surface facing a second direction opposite to the first direction among two surfaces of the first plate using a UV resin. The uneven pattern may be formed on the outer surface facing the second direction among two surfaces of the cover layer.

[0010] In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0011] FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments.

[0012] FIG. 2a is a perspective view of a mobile electronic device according to one embodiment, viewed from one direction.

[0013] FIG. 2b is a perspective view of a mobile electronic device according to one embodiment, viewed from another direction.

[0014] FIG. 2c is an unfolded perspective view of a mobile electronic device according to one embodiment.

[0015] FIG. 3a is an enlarged view of a portion of the rear cover of a mobile electronic device according to one embodiment.

[0016] FIG. 3b is a drawing illustrating examples of uneven patterns within a rear cover according to one embodiment.

[0017] FIG. 4a is a drawing illustrating the cross-sectional structure of a rear cover according to one embodiment.

[0018] FIG. 4b is a drawing for explaining the functionality according to the material and / or structure of a rear cover according to one embodiment.

[0019] FIG. 5 is a drawing illustrating the cross-sectional structure of a rear cover according to one embodiment.

[0020] FIG. 6a is a flowchart illustrating a method for manufacturing a rear cover according to one embodiment.

[0021] FIG. 6b is a drawing for explaining the operations of a method for manufacturing a rear cover according to one embodiment.

[0022] FIG. 7a is a perspective view of a multi-foldable type mobile electronic device according to one embodiment, viewed from one direction.

[0023] FIG. 7b is a drawing illustrating an example of a rear cover applied to a multi-foldable type mobile electronic device according to one embodiment.

[0024] FIG. 8 is a drawing illustrating an example of a rear cover applied to a multi-foldable type mobile electronic device according to one embodiment.

[0025] FIG. 9a is a drawing illustrating a rear cover, housing, and case for a mobile phone type electronic device according to one embodiment.

[0026] FIG. 9b is a drawing illustrating a rear cover, housing, and case for a first foldable type electronic device according to one embodiment.

[0027] FIG. 9c is a drawing illustrating a rear cover, housing, and case for a second foldable type electronic device according to one embodiment.

[0028] FIG. 10a is a drawing illustrating a rear cover, housing, and case for a tablet-type electronic device according to one embodiment.

[0029] FIG. 10b is a drawing illustrating a rear cover and case for a laptop computer type electronic device according to one embodiment.

[0030] Hereinafter, embodiments of the present disclosure are described in detail with reference to the drawings so that those skilled in the art can easily practice them. However, the present disclosure may be embodied in various different forms and is not limited to the embodiments described herein. In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Furthermore, in the drawings and related descriptions, descriptions of well-known functions and configurations may be omitted for clarity and brevity.

[0031] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to various embodiments. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or with an electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In some embodiments, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0032] The processor (120) can control at least one other component (e.g., hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., program (140)), for example, and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., sensor module (176) or communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., central processing unit or application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0033] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) 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. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence is performed, or through a separate server (e.g., server (108)). The learning algorithm may 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 may include a plurality of artificial neural network layers.An artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), 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 the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0034] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0035] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0036] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0037] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0038] The display module (160) can visually provide information to an external (e.g., 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 said 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 the force generated by said touch.

[0039] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) connected directly or wirelessly to the electronic device (101).

[0040] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0041] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to 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.

[0042] The connection terminal (178) may include a connector through which the electronic device (101) can 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).

[0043] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0044] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0045] The power management module (188) can manage the power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).

[0046] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0047] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an 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 include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and 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., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device (104) through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., 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 may 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 identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0048] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), 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), external electronic device (e.g., electronic device (104)), or network system (e.g., 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 realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mMTC, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for realizing URLLC.

[0049] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to 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 a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0050] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0051] At least some of the above components can be connected to each other via a communication method between peripheral area devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0052] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through a server (108) connected to a second network (199). Each of the external electronic devices (102, or 104) may be the same or different type of device as the electronic device (101). According to one embodiment, all or part of the operations performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104, or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or 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 provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within a 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.

[0053] FIG. 2a is a perspective view (e.g., front perspective view) of a mobile electronic device (200) according to one embodiment viewed from one direction. FIG. 2b is a perspective view (e.g., rear perspective view) of a mobile electronic device (200) according to one embodiment viewed from another direction. FIG. 2c is an unfolded perspective view of a mobile electronic device (200) according to one embodiment.

[0054] According to one embodiment, the mobile electronic device (200) shown in FIG. 2a, FIG. 2b and FIG. 2c may correspond to the electronic device (101) of FIG. 1.

[0055] The components of the mobile electronic device (200) illustrated in FIGS. 2a, 2b, and 2c are merely examples for illustrating the mechanical structure, and the scope of the embodiments is not limited thereto. In some embodiments, some of the components of the mobile electronic device (200) illustrated in FIGS. 2a, 2b, and 2c may be omitted, or other components that are not illustrated may be included.

[0056] Referring to FIGS. 2a and 2b, a mobile electronic device (200) may include a housing (210) comprising a first surface (or front) (210A), a second surface (or rear) (210B), and a side (210C) that surrounds the space between the first surface (210A) and the second surface (210B). The housing (210) may also refer to a structure that forms part of the first surface (210A), the second surface (210B), and the side (210C).

[0057] According to one embodiment, a mobile electronic device (200) may include a housing (210) and a display (220) disposed within the housing (210).

[0058] In one embodiment, the housing (210) may include a first surface (210A) facing a first direction (e.g., +Z-axis direction) (or the front of the mobile electronic device (200)), a second surface facing a second direction opposite to the first direction (e.g., -Z-axis direction) (or the rear of the mobile electronic device (200)), and a third surface facing a third direction perpendicular to the first direction (or the side of the mobile electronic device (200)).

[0059] In one embodiment, the display (220) may include a screen area exposed through a first surface (210A) (e.g., front) of the mobile electronic device (200). The housing (210) may include a rear cover or back cover (300) forming a second surface (210B) (e.g., rear) of the mobile electronic device (200).

[0060] According to one embodiment, the first surface (210A) may be formed by a front cover (202). In one embodiment, the front cover (202) may be positioned on top of the display (220) to cover a screen area of ​​the display (220). In some embodiments, the front cover (202) may be omitted or implemented in a form integrated with the display (220). In such cases, the first surface (210A) may be formed by the display (220) (e.g., a screen area of ​​the display (220)).

[0061] According to one embodiment, the second surface (210B) can be formed by the rear cover (300).

[0062] According to one embodiment, the side (210C) may be formed by a side bezel structure (or side member) (218) that is coupled to the front cover (202) and / or the rear cover (300). In one embodiment, the rear cover (300) and the side bezel structure (218) may be formed integrally and may contain the same material. In some embodiments, the rear cover (300) and the side bezel structure (218) may be formed as separate structures. In some embodiments, the side bezel structure (218) may be omitted.

[0063] According to one embodiment, a mobile electronic device (200) may include at least one of a display (220), an audio module (203, 207, 214), a sensor module, a camera module (204, 205, 206), a key input device (217), a light-emitting element (not shown), and a connector hole (208, 209). The mobile electronic device (200) may omit at least one of the components (e.g., a key input device (217), or a light-emitting element (not shown)) or additionally include other components.

[0064] According to one embodiment, the display (220) may be exposed through a substantial portion (e.g., 90% or more) of the front cover (202). In one embodiment, at least a portion of the display (220) may be exposed through the front cover (202) forming some areas of the first surface (210A) and the side (210C). In one embodiment, the corners of the display (220) may be formed to be generally the same as the adjacent outer shape of the front cover (202). In one embodiment, to expand the area where the display (220) is exposed, the gap between the outer edge of the display (220) and the outer edge of the front cover (202) may be formed to be generally the same.

[0065] According to one embodiment, a recess or opening may be formed in a portion of the screen area of ​​the display (220). The mobile electronic device (200) may include at least one of an audio module (214), a camera module (205), a sensor module, and a light-emitting element that are aligned with the recess or the opening. For example, at least one of the audio module (214), the sensor module, the camera module (205), the fingerprint sensor, and the light-emitting element may be disposed on the rear (or back) side of the screen area of ​​the display (220). In one embodiment, the display (220) may be combined with or disposed adjacent to a touch detection circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a digitizer that detects a magnetic field-type stylus pen.

[0066] According to one embodiment, the audio module (203, 207, 214) may include a microphone hole (203) and a speaker hole (207, 214). A microphone for acquiring external sound may be placed inside the microphone hole (203). In one embodiment, a plurality of microphones may be placed to detect the direction of sound. The speaker hole (207, 214) may include an external speaker hole (207) and a receiver hole (214) for communication. In some embodiments, the speaker hole (207, 214) and the microphone hole (203) may be implemented as a single hole, or a speaker may be included without the speaker hole (207, 214) (e.g., a piezo speaker).

[0067] According to one embodiment, the sensor module may generate an electrical signal or data value corresponding to an internal operating state or an external environmental state of the mobile electronic device (200). The sensor module may include, for example, at least one of a first sensor module (not shown) (e.g., proximity sensor) disposed on a first surface (210A) of the housing (210), a second sensor module (not shown) (e.g., fingerprint sensor) disposed on the first surface (210A), a third sensor module (not shown) (e.g., HRM sensor) disposed on a second surface (210B) of the housing (210), or a fourth sensor module (not shown) (e.g., fingerprint sensor) disposed on the second surface (210B). The fingerprint sensor may be disposed on the second surface (210B) as well as on the first surface (210A) (e.g., display (220)) of the housing (210). The mobile electronic device (200) may further include at least one of an unillustrated sensor module, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0068] According to one embodiment, the camera module (204, 205, 206) may include a first camera (205) disposed on a first surface (210A) of the mobile electronic device (200), a second camera (206) disposed on a second surface (210B), and / or a flash (204). The cameras (205, 206) may include one or more lenses, an image sensor, and / or an image signal processor. The flash (204) may include, for example, a light-emitting diode or a xenon lamp. In one embodiment, two or more lenses (infrared camera, wide-angle and telephoto lenses) and image sensors may be disposed on one surface of the mobile electronic device (200).

[0069] According to one embodiment, a key input device (217) may be disposed on a side (210C) of the housing (210). In one embodiment, the mobile electronic device (200) may not include some or all of the aforementioned key input devices (217), and the key input devices (217) that are not included may be implemented in other forms, such as soft keys, on the display (220). The key input device may include a sensor module (not shown) disposed on a second side (210B) of the housing (210).

[0070] According to one embodiment, a light-emitting element (not shown) may be disposed on, for example, a first surface (210A) of a housing (210). The light-emitting element may, for example, provide state information of a mobile electronic device (200) in the form of light. In one embodiment, the light-emitting element may, for example, provide a light source linked to the operation of a camera module (205). The light-emitting element may include, for example, an LED, an IR LED, and a xenon lamp.

[0071] According to one embodiment, the connector holes (208, 209) may include a first connector hole (208) capable of receiving a connector (e.g., a USB connector) for transmitting and receiving power and / or data with an external electronic device, and a second connector hole (e.g., an earphone jack) (209) capable of receiving a connector for transmitting and receiving audio signals with an external electronic device.

[0072] FIG. 2c is an unfolded perspective view of a mobile electronic device (200) according to one embodiment.

[0073] Referring to FIG. 2c, the mobile electronic device (200) may include a side bezel structure (218), a first support member (231) (e.g., a bracket), a front cover (202), a display (220), a printed circuit board (240), a battery (250), a second support member (232) (e.g., a rear case), an antenna (260), and a rear cover (300). In one embodiment, the mobile electronic device (200) may omit at least one of the components (e.g., the first support member (231) or the second support member (232)) or additionally include other components. At least one of the components of the mobile electronic device (200) shown in FIG. 2c may be identical or similar to at least one of the components of the mobile electronic device (200) shown in FIG. 2a and FIG. 2b, and redundant descriptions are omitted below.

[0074] According to one embodiment, the first support member (231) may be disposed inside the mobile electronic device (200) and connected to the side bezel structure (218), or may be formed integrally with the side bezel structure (218). The first support member (231) may be formed, for example, from a metal material and / or a non-metal (e.g., polymer) material. The first support member (231) may have a display (220) attached to one side and a printed circuit board (240) attached to the other side.

[0075] According to one embodiment, a printed circuit board (240) may be equipped with a processor (e.g., processor (120) of FIG. 1), memory (e.g., memory (130) of FIG. 1), and / or an interface (e.g., interface (177) of FIG. 1). The processor may include, for example, one or more of a central processing unit, an application processor, a graphics processing unit, an image signal processor, a sensor hub processor, or a communication processor. The memory may include, for example, volatile memory or non-volatile memory. The interface may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and / or an audio interface. The interface may, for example, electrically or physically connect the mobile electronic device (200) to an external electronic device and may include a USB connector, an SD card / MMC connector, or an audio connector.

[0076] According to one embodiment, the battery (250) is a device for supplying power to at least one component of the mobile electronic device (200) and may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. At least a portion of the battery (250) may be disposed substantially coplanar with, for example, the printed circuit board (240). The battery (250) may be disposed integrally inside the mobile electronic device (200) and may be disposed detachably from the mobile electronic device (200).

[0077] According to one embodiment, the antenna (260) may be positioned between the rear cover (300) and the battery (250). The antenna (260) may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna. The antenna (260) may, for example, communicate near-field with an external device or wirelessly transmit and receive power required for charging. In one embodiment, the antenna structure may be formed by a side bezel structure (218) and / or a part or combination thereof of the first support member (231).

[0078] Referring to FIGS. 2a, 2b, and 2c, a first surface (210A), a second surface (210B), and a side (210C) constituting the housing (210) of a mobile electronic device (200) can form an internal space. The mobile electronic device (200) can mount electronic components in the internal space of the housing (210). The electronic components mounted in the internal space of the housing (210) can be protected from the outside by the housing (210).

[0079] FIG. 3a is an enlarged view of a portion of the rear cover (300) of a mobile electronic device (200) according to one embodiment. An uneven pattern (310) may be formed in the portion of the area.

[0080] Referring to FIG. 3a, the housing (210) of a mobile electronic device (200) according to one embodiment may include a rear cover (300). An uneven pattern (310) may be formed on the surface (or outer surface) of the rear cover (300) corresponding to the rear of the mobile electronic device (200).

[0081] In one embodiment, the uneven pattern (310) may be a pattern of concave and convex structures (or uneven structures, structures having uneven heights) regularly arranged in at least some area of ​​the surface of the rear cover (300).

[0082] In one embodiment, the uneven pattern (310) may include a valley portion (or down portion) (311) and a peak portion (or protruding portion) (312). The valley portion (311) may correspond to a first plane (or base surface). The peak portion (312) (or second plane) may be formed to have a predetermined height (or thickness) from the first plane (or base surface).

[0083] According to one embodiment, a mobile electronic device (200) can provide fingerprint resistance, a three-dimensional tactile sensation, and an anti-slip effect by forming an uneven pattern (310) on the surface of a rear cover (300) that is grasped (or contacted) by a user.

[0084] According to one embodiment, the uneven pattern (310) on the rear cover (300) may be a regular arrangement of uneven shapes (outer shapes of concave and convex structures) that appear in a specific shape (e.g., circular, square) on the surface of the rear cover (300).

[0085] FIG. 3b is a drawing illustrating examples of uneven patterns (320, 330, 340, 350) within a rear cover (300) according to one embodiment.

[0086] In FIG. 3b, reference numeral 320 illustrates a form in which rectangular uneven shapes constituting the uneven pattern (310) are arranged in a third direction (e.g., +X-axis direction, horizontal direction, straight direction, length direction). Reference numeral 330 illustrates a form in which circular uneven shapes constituting the uneven pattern (310) are arranged in the third direction. Reference numeral 340 illustrates a form in which rectangular uneven shapes constituting the uneven pattern (310) are arranged in a fourth direction (e.g., diagonal direction relative to the +X-axis direction). Reference numeral 350 illustrates a form in which circular uneven shapes constituting the uneven pattern (310) are arranged in the fourth direction.

[0087] According to one embodiment, the uneven pattern (320, 330, 340, 350) may include a valley portion (321, 331, 341, 351) corresponding to a base surface and peak portions (322, 332, 342, 352) protruding from the base surface. The uneven pattern (320, 330, 340, 350) may include at least one of a first pattern (320, 330) in which circular or square peak portions are arranged horizontally on the base surface corresponding to the valley portion, or a second pattern (340, 350) in which circular or square peak portions are arranged diagonally on the base surface. For example, the peak portions (322, 332, 342, 352) may be embossed to have a predetermined thickness (or height) (e.g., about 8 μm) from the valley portion (311) (or base surface).

[0088] In one embodiment, the spacing between the peak portions (322, 332, 342, 352) may have a value corresponding to 40% to 60% (e.g., about 50%) of the size of the peak portions (322, 332, 342, 352). For example, the size (e.g., length and width) of the peak portions (322, 332, 342, 352) may be X (e.g., about 0.4 mm), and the spacing (or distance) between the peak portions (322, 332, 342, 352) may be X / 2 (e.g., about 0.2 mm).

[0089] FIG. 4a is a drawing illustrating the cross-sectional structure of a rear cover (400) (e.g., the rear cover (300) of FIG. 3) according to one embodiment.

[0090] According to one embodiment, the rear cover (400) of the mobile electronic device (200) may have a multilayer structure including a plurality of plates and / or a plurality of layers.

[0091] Referring to FIG. 4a, the rear cover (400) may include a cover layer (410), a first plate (420), a color layer (430), a shielding layer (440), an adhesive (450), and a second plate (460). In one embodiment, the cover layer (410), the first plate (420), the color layer (430), the shielding layer (440), the adhesive (450), and the second plate (460) may be arranged sequentially along a first direction (e.g., the +Z-axis direction, the vertical direction, the direction toward the front or interior of the mobile electronic device (200)). In some embodiments, some of the components shown in FIG. 4a may be omitted or integrated. In some embodiments, other components not shown in FIG. 4a may be further included.

[0092] According to one embodiment, an uneven pattern (401) may be formed on the surface (or outer surface) of the cover layer (410). The surface of the cover layer (410) may correspond to the rear (or outer surface) of the mobile electronic device (200).

[0093] According to one embodiment, the first plate (420) may have a first strength. The first plate (410) may be formed from a material having the first strength. The first plate (410) may be formed from a material having a higher transparency than the second plate (460). The first plate (410) may be formed from a material that is relatively flexible or lightweight, making it easier to print a color pattern compared to the second plate (460). In one embodiment, the first plate (410) may be a plate made of a transparent material. The first plate (410) may be a plate made of a transparent material to transmit incident light and enable color expression. For example, the first plate (410) may correspond to a plate made of PET (polyethylene terephthalate) material.

[0094] According to one embodiment, the color layer (430) may include a color film (431), an ultraviolet (UV) mold (432), and a reflective layer (433). The UV mold (432) may be placed on one side of the color film (431). The reflective layer (433) may be placed between the UV mold (432) and the shielding layer (440). In one embodiment, the reflective layer (433) is for optical effects (or reflective properties) and may be a layer composed of a conductive material (e.g., silver) having a specified reflectivity (high reflectivity). Reflective patterns for light reflection (diffuse reflection) and / or scattering may be formed regularly or irregularly on the surface of the reflective layer (433).

[0095] According to one embodiment, a shielding layer (440) may be disposed on one side of the color layer (430). The shielding layer (440) may be for optical shielding and / or electromagnetic shielding. In one embodiment, the shielding layer (440) may be disposed on one side of the reflection layer (433) among the color film (431), UV mold (432), and reflection layer (433) constituting the color layer (430).

[0096] According to one embodiment, the adhesive (450) is placed between the shielding layer (440) and the second plate (460) to bond the shielding layer (440) and the second plate (460).

[0097] According to one embodiment, the second plate (460) may have a second strength higher than the first strength of the first plate (420). The second plate (460) may be composed of a material having the second strength. For example, the second plate (460) may be a plate of translucent or opaque material for strength improvement, and may correspond to a plate of glass fiber reinforced polymer (GFRP) material. GFRP may be a composite material combining glass fiber and polymer resin. Glass fiber may have relatively strong and lightweight properties. Polymer resin may have properties that allow for easy processing and molding into various shapes.

[0098] FIG. 4b is a drawing for explaining the functionality according to the material and / or structure of a rear cover (400) (e.g., rear cover (300) of FIG. 3) according to one embodiment.

[0099] According to one embodiment, the rear cover (400) of the mobile electronic device (200) may have a structure in which an internal multilayer structure and an uneven pattern (401) on the surface (or outer surface) are combined.

[0100] According to one embodiment, the first plate (420) of the rear cover (400) may correspond to a plate made of a transparent material. The first plate (420) may transmit light and be used to laminate a color layer (430). The color layer (430) laminated on the first plate (420) may be used for color representation of the rear cover (400). The second plate (460) may correspond to a plate made of a translucent or opaque material for improving the strength of the rear cover (400).

[0101] According to one embodiment, the uneven pattern (401) of the cover layer (410) may include a valley portion (411) and a peak portion (412). The valley portion (411) and the peak portion (412) may have a difference in thickness (or height). In one embodiment, the height (H1) of the valley portion (411) (or the first plane, base surface) may have a value in the range of 2 μm to 6 μm (e.g., about 4 μm) from the second surface of the first plate (420), which is the contact surface in contact with the first plate (420). The height (H2) of the peak portion (412) (or the second plane) may have a value in the range of 10 μm to 14 μm (e.g., about 12 μm) from the second surface of the first plate (420). The peak portion (412) (or second plane) may be formed to have a predetermined height (e.g., about 8 μm) from the valley portion (411) (or first plane).

[0102] In one embodiment, there may be a difference in transmittance between the two parts (411, 412) due to a difference in thickness (or height) between the valley part (411) (or first plane, base surface) and the peak part (412) (or second plane) of the uneven pattern (401). Due to the difference in transmittance between the two parts (411, 412), the haze (visually blurry or opaque appearance) may differ between parts. For example, the peak part (412) of the uneven pattern (401) may be thicker than the valley part (411), so the transmittance may be relatively lower and the haze may appear stronger. This may result in a difference in transparency (or color clarity) between the two parts (411, 412) within the rear cover (400).

[0103] According to one embodiment of the present disclosure, the rear cover (400) can produce a hazy color (or a characteristic wave or blurring effect) due to interference patterns that appear when the reflective pattern (inner pattern) of the reflective layer (433) placed inside and the outer uneven pattern (401) (outer pattern) overlap. For example, light transmitted through the UV mold (432) may be diffusely reflected from the surface of the reflective layer (433) (e.g., a silver printing layer deposited on the UV mold (432)) by the reflective pattern. A moiré optical effect, which exhibits a unique pattern, may be provided by the combination of diffuse reflection occurring on the surface of the reflective layer (433) and the uneven surface of the cover layer (410) including the uneven pattern (401). Accordingly, fingerprint visibility may be reduced.

[0104] According to one embodiment of the present disclosure, the uneven pattern (310) of the rear cover (400) works together with the reflective layer (433) to reflect light incident on the rear cover (400), thereby contributing to enhancing readability / aesthetics or absorbing external shocks. The rear cover (400) can maintain aesthetics or improve the user experience by implementing a unique hazy color using the difference in transmittance between the peak portion (412) and the valley portion (411) of the uneven pattern (401).

[0105] According to one embodiment of the present disclosure, the rear cover (400) can achieve a unique color through a first plate (420) of relatively low strength and a color layer (430) laminated on the first plate (420). The rear cover (400) can improve the overall strength of the rear cover (400) by including a second plate (460) of relatively high strength.

[0106] According to one embodiment of the present disclosure, the rear cover (400) may provide fingerprint resistance due to the light reflection / scattering effect and the difference in thickness of the uneven pattern (401) by utilizing a multilayer structure including a first plate (420) and a second plate (460) having different characteristics and an uneven pattern (401) on a cover layer (410) disposed on the outer edge of the rear cover (400). Accordingly, fingerprints (or stains, contaminants) caused by contact of a finger on the surface of the rear cover (400) may be reduced, become less visible, or be easily removed.

[0107] According to one embodiment of the present disclosure, the rear cover (400) can achieve chemical resistance (ability to withstand corrosion, discoloration, damage, etc.) by utilizing a multilayer structure including a first plate (420) and a second plate (460) of different characteristics and an uneven pattern (401) on the cover layer (410).

[0108] FIG. 5 is a drawing illustrating the cross-sectional structure of a rear cover (500) (e.g., the rear cover (300) of FIG. 3) according to one embodiment.

[0109] The rear cover (500) illustrated in FIG. 5 may have a structure similar to the rear cover (400) illustrated in FIG. 4a and FIG. 4b. The cover layer (510), first plate (520), color layer (530), shielding layer (540), adhesive (550), and second plate (560) of the rear cover (500) illustrated in FIG. 5 may correspond to the cover layer (410), first plate (420), color layer (430), shielding layer (440), adhesive (450), and second plate (460) of the rear cover (400) illustrated in FIG. 4a and FIG. 4b, respectively.

[0110] Referring to FIG. 5, the rear cover (500) may include a cover layer (510). On the surface (or outer surface) of the cover layer (510), an uneven pattern (501) may be formed with rounded corners having a certain radius (r). The uneven pattern (501) of the cover layer (510) may include a valley portion (511) and a peak portion (512). The valley portion (511) and the peak portion (512) may have a difference in thickness (or height).

[0111] According to one embodiment, an uneven pattern (501) may be formed on the surface (or outer surface) of the rear cover (500) in an area that is close to or in contact with the display (220) (e.g., display surface) of the mobile electronic device (200). The uneven pattern (501) may serve to protect the display (220) (e.g., prevent scratches or dents) by being patterned to have rounded corners.

[0112] According to one embodiment, the patterning process can be simplified by omitting the rounding process in areas where rounding of the corners of the uneven pattern formed on the cover layer is unnecessary.

[0113] FIG. 6a is a flowchart illustrating a method for manufacturing a rear cover (300) according to one embodiment. FIG. 6b is a diagram for explaining the operations of a method for manufacturing a rear cover (300) according to one embodiment.

[0114] Referring to FIG. 6a and FIG. 6b, a method for manufacturing a rear cover (300) according to one embodiment may include operation 610, operation 620, operation 630, operation 640, operation 650 and operation 660.

[0115] Operations 610, 620, and 630 may be for forming a multilayer color layer (430) on the first plate (420).

[0116] In operation 610, a color film (431) (e.g., a UV coating film) may be laminated (e.g., printed) on the first surface of the first plate (420). For example, the color film (421) may be intended to produce a visual effect on the surface (or outer surface) of the rear cover (300). For example, a translucent color layer for coloring (e.g., implementing a tint color) may be printed on a PET material fabric used as the first plate (420). For example, the first plate (420) may have a thickness of about 0.18 mm. For example, the color film (431) may be laminated with a thickness of about 3 µm.

[0117] In operation 620, a UV mold (432) (e.g., UV resin) may be laminated (e.g., applied) onto a color film (431). The UV mold (432) may be a photocurable material and may be for forming an internal color pattern. For example, the UV mold (432) may be laminated to a thickness of about 13 μm.

[0118] In operation 630, a reflective layer (433) can be laminated (e.g., deposited) on the UV mold (432). For example, the reflective layer (433) can be formed by depositing silver ink for a reflective effect on the UV mold (432). For example, the reflective layer (433) can be laminated with a very thin thickness of about 0.1 to 1 μm.

[0119] In operation 640, a shielding layer (440) (e.g., carbon black, black pigment) may be laminated (e.g., printed) on the reflective layer (433). For example, the shielding layer (440) may be intended to enhance the visual coloration appearing on the surface (or outer surface) of the rear cover (300). For example, the shielding layer (440) may be laminated to a thickness of about 30 µm.

[0120] Operation 650 may be for bonding (or laminating) the second plate (460) to the color layer (430) and / or shielding layer (440) using an adhesive (450).

[0121] Operation 650 may include operations 651 and 652.

[0122] In operation 651, an adhesive (450) may be laminated (e.g., applied) onto the shielding layer (440). For example, the adhesive (450) may be at least one of an acrylic adhesive, a silicone adhesive, an epoxy adhesive, or a polyurethane adhesive. For example, the adhesive (450) may be applied to a thickness of about 6 μm.

[0123] In operation 652, the second plate (460) can be bonded (or laminated) to the shielding layer (440) using an adhesive (450). For example, the second plate (460) may have a thickness of about 0.4 mm.

[0124] In one embodiment, the first plate (420) may correspond to a plate made of PET material. The second plate (460) may correspond to a plate made of GFRP material. When using the first plate (420) made of PET material, it is efficient for the color process for forming the color layer (430) and / or shielding layer (440), but it may be vulnerable to flatness and rigidity due to its relatively thin thickness (e.g., about 0.18 mm). According to one embodiment, the rigid structure of the rear cover (300) can be reinforced by bonding (or laminating) a second plate (460) made of GFRP material that is relatively thick and has high strength (or hardness).

[0125] Operation 660 may be for laminating a cover layer (410) having an uneven pattern (401) formed on the second surface of the first plate (420) using UV resin (415).

[0126] Operation 660 may include operations 661, 662, and 663.

[0127] In operation 661, a UV resin (415), which is a photocurable material, may be laminated (e.g., applied) to the second surface of the first plate (420). For example, the UV resin (415) may be applied to a thickness of about 12 μm to form an uneven pattern (401).

[0128] In operations 662 and 663, the pattern of the mold (601) is positioned so that it can be transferred to the UV resin (415), and by performing UV curing, a cover layer (410) having an uneven pattern (401) formed on its surface can be laminated onto the first plate (420).

[0129] According to various embodiments, the mobile electronic device (101) may be at least one of a first electronic device of the type of a mobile phone, a second electronic device of the type of a tablet, or a third electronic device of the type of a laptop computer.

[0130] According to one embodiment, the mobile electronic device (101) may be a foldable type electronic device (e.g., a foldable smartphone). The foldable type electronic device may include a foldable housing. The foldable housing may include a cover layer. The cover layer may include a first area in which an uneven pattern is formed and a second area in which an uneven pattern is not formed. In one embodiment, the first area may correspond to a gripping area (or contact area) that is grasped by a user. For example, among the first housing and the second housing of the foldable housing, the first area may correspond to the rear area of ​​the first housing that is grasped by a user when the foldable type electronic device is in a folded state. In one embodiment, the second area may correspond to a non-gripping area (or non-contact area). For example, an additional display may be placed corresponding to the second area.

[0131] According to one embodiment, the mobile electronic device (101) may be a multi-foldable type electronic device (e.g., a multi-foldable smartphone). The multi-foldable type electronic device may include a multi-foldable housing having two or more folding axes, and a flexible display supported by the multi-foldable housing. The multi-foldable type electronic device may include a multi-foldable housing. The multi-foldable housing may include a cover layer.

[0132] In one embodiment, a cover layer included in a multi-foldable type electronic device may include a first region in which an uneven pattern is formed and a second region in which the uneven pattern is not formed. The second region may correspond to a region facing the display surface of the flexible display when the multi-foldable type electronic device is in a folded state.

[0133] In one embodiment, a cover layer included in a multi-foldable type electronic device may include a first region in which a first uneven pattern is formed and a second region in which a second uneven pattern is formed. The second uneven pattern may be in the form of rounding the corners of the first uneven pattern. The second region may correspond to an area facing the display surface of a flexible display when the multi-foldable type electronic device is in a folded state.

[0134] According to one embodiment, a cover layer included in a multi-foldable type electronic device may include a first region in which a first uneven pattern is formed and a second region in which a second uneven pattern is formed. The second uneven pattern may have lower strength (or hardness) compared to the first uneven pattern. The second region may correspond to an area facing the display surface of the flexible display when the multi-foldable type electronic device is in a folded state. In one embodiment, the hardness (degree of softness) of the first and second uneven patterns may be controlled differently by adjusting at least one of the material properties, processing conditions, or additives during the UV curing process. For example, a second uneven pattern having soft hardness characteristics may be formed using a material with relatively low hardness (e.g., a polymer). For example, the hardness of the second uneven pattern compared to the first uneven pattern can be lowered by adjusting the ratio of UV resin to hardener (e.g., using less hardener or using a hardener with high flexibility) or by utilizing additives that increase flexibility (e.g., plasticizer, filler). For example, a second uneven pattern having soft hardness characteristics can be formed by adjusting processing conditions such as lowering the temperature and / or time.

[0135] According to one embodiment, a cover layer included in a multi-foldable type electronic device may further include a third region in which an uneven pattern is not formed. An additional display may be disposed corresponding to the third region.

[0136] Hereinafter, with reference to FIGS. 7a, 7b, and 7c, the mechanical structure of a foldable type electronic device and a rear cover included in said foldable type electronic device will be described. Each of the illustrated electronic devices may correspond to the electronic device (101) of FIG. 1 or may include at least some of the components of FIG. 1. For example, an electronic device according to one embodiment may correspond to any one of an out-foldable type electronic device capable of out-folding, an in-foldable type electronic device capable of in-folding, or a multi-foldable type electronic device capable of multi-folding.

[0137] However, the illustrated structure is for illustrative purposes only, and the scope of the embodiments is not limited to a specific structure. Various embodiments are possible that modify, alter, apply, and extend the illustrated structure within the scope including the rear cover. For example, while FIGS. 7a, 7b, and 8 illustrate a multi-foldable type / in-foldable type electronic device, an electronic device according to one embodiment may be a foldable type, out-foldable type, or bidirectional foldable type electronic device having a single folding axis.

[0138] FIG. 7a is a perspective view (e.g., side perspective view) of a multi-foldable type mobile electronic device (700) according to one embodiment, viewed from one direction.

[0139] Referring to FIG. 7a, the mobile electronic device (700) is a multi-foldable type electronic device capable of Z-folding and may include a housing (710) and a first display (720).

[0140] In one embodiment, the housing (710) may include a first housing (711), a second housing (712), a third housing (713), a first folding unit (714), and a second folding unit (715). A first display (720) (e.g., a front display, a flexible display) may be disposed within the housing (710). The first display (720) may include a first screen area (721), a second screen area (722), and a third screen area (733).

[0141] In one embodiment, the mobile electronic device (700) may be a multi-foldable electronic device capable of Z-folding, wherein the first and second housings (711, 712) are folded in a first folding operation by a first folding unit (714), and the second and third housings (712, 713) are folded in a second folding operation by a second folding unit (715). For example, the first and second folding operations may include in-folding operations.

[0142] The mechanical state of the mobile electronic device (700) can be changed in correspondence with the folding state of the first and second folding units (714, 715) (e.g., in-folding unit). The first folding unit (714) can provide a first folding axis (f1). The second folding unit (715) can provide a second folding axis (f2) parallel to the first folding axis (f1).

[0143] For example, the mechanical state of the mobile electronic device (700) may be a fully folded state with a narrowest width (W1) centered around the first and second folding units (714, 715) (e.g., folding angle 0 degrees, folded state (701) of FIG. 7b). For another example, the mechanical state of the mobile electronic device (700) may be a fully unfolded state with the first and second folding units (714, 715) unfolded, i.e., a widest width (W2) (e.g., folding angle 180 degrees, unfolded state (702) of FIG. 7b). As another example, the mechanical state of the mobile electronic device (700) may be a partially folded state according to the intermediate folding state of the first and second folding units (714, 715).

[0144] In one embodiment, the mobile electronic device (700) may include a first display (720) positioned across the first to third housings (711, 712, 713). The first display (720) may be positioned in the first to third housings (711, 712, 713) in a first direction (601) (e.g., the front of the mobile electronic device (700), a direction in which a user can face it). The first display (720) may be positioned in a direction that crosses the first to third housings (711, 712, 713).

[0145] In one embodiment, a first display (720) may be placed on the front of a mobile electronic device (700). A rear cover (730) (e.g., the first and second rear covers (731, 732) of FIG. 7b) may be placed on the rear of the mobile electronic device (700) (or housing (710)).

[0146] FIG. 7b is a drawing illustrating an example of a rear cover (731, 732) applied to a multi-foldable type mobile electronic device (700) according to one embodiment.

[0147] In FIG. 7b, reference numeral 701 indicates the folded state of the mobile electronic device (700). Reference numeral 702 indicates the unfolded state of the mobile electronic device (700).

[0148] In one embodiment, the mobile electronic device (700) may be a multi-foldable type electronic device. The mobile electronic device (700) may include a housing (710) and a first display (720) (e.g., a front display, a flexible display). For example, the housing (710) may be a multi-foldable housing having two folding axes (f1, f2). The housing (710) may include a hinge assembly (not shown) for folding.

[0149] In one embodiment, a first display (720) may be disposed on one side (e.g., front) of the mobile electronic device (700) (or housing (710)). A rear cover (731, 732) may be disposed on the other side (e.g., rear) of the mobile electronic device (700) (or housing (710)).

[0150] In one embodiment, the housing (710) may include a first housing (711), a second housing (712), and a third housing (713). The first display (720) may be supported by the housing (710). The first display (720) may be exposed through a substantial portion (e.g., 90% or more) of the front surface of the mobile electronic device (700). The first display (720) may include a first screen area (721), a second screen area (722), and a third screen area (723).

[0151] According to one embodiment, a first screen area (721) and a first rear cover (731) may be disposed in a first housing (711). A second screen area (722) and a second display (770) (e.g., rear display, additional display) may be disposed in a second housing (712). A third screen area (723) and a second rear cover (732) may be disposed in a third housing (713).

[0152] In one embodiment, the first rear cover (731) may be placed in an area facing the display surface of the first display (720) (e.g., the third screen area (723)) in the folded state (701) of the mobile electronic device (700) (or an area close to or in contact with the display surface of the first display (720)). The second rear cover (732) may be placed in an area spaced apart from the display surface of the first display (720) by a certain distance or more, regardless of the deformed state (folded state (701) and / or unfolded state (702)) of the mobile electronic device (700).

[0153] In this structure, different types of uneven patterns (742, 752) may be formed on the surface (or outer surface) of the first rear cover (731) and the surface (or outer surface) of the second rear cover (732), respectively. A first uneven pattern (742) may be formed on the surface of the first rear cover (731) (e.g., cover layer (741)). A second uneven pattern (752) may be formed on the surface of the second rear cover (732) (e.g., cover layer (751)). For example, the first uneven pattern (742) may be formed with the corners of the second uneven pattern (752) rounded to protect the display surface of the first display (720). For example, the first uneven pattern (742) may be formed to have a softer hardness characteristic compared to the second uneven pattern (752) to protect the display surface of the first display (720).

[0154] FIG. 8 is a drawing illustrating an example of a rear cover (810) applied to a multi-foldable type mobile electronic device (800) according to one embodiment.

[0155] In FIG. 8, reference numeral 801 indicates the folded state of the mobile electronic device (800). Reference numeral 802 indicates the unfolded state of the mobile electronic device (800).

[0156] In one embodiment, the mobile electronic device (800) may be a multi-foldable type electronic device. The mobile electronic device (800) may include a housing (810) and a first display (820) (e.g., a front display, a flexible display). For example, the housing (810) may be a multi-foldable housing having two folding axes (f1, f2). The housing (810) may include a hinge assembly (not shown) for folding.

[0157] In one embodiment, a first display (820) may be disposed on one side (e.g., front) of the mobile electronic device (800) (or housing (810)). A rear cover (831, 832) may be disposed on the other side (e.g., rear) of the mobile electronic device (800) (or housing (810)).

[0158] In one embodiment, the housing (810) may include a first housing (811), a second housing (812), and a third housing (813). The first display (820) may be supported by the housing (810). The first display (820) may be exposed through a substantial portion (e.g., 90% or more) of the front surface of the mobile electronic device (800). The first display (820) may include a first screen area (821), a second screen area (822), and a third screen area (823).

[0159] According to one embodiment, a first screen area (821) and a second display (870) (e.g., a rear display, an additional display) may be disposed in a first housing (811). A second screen area (822) and a first rear cover (831) may be disposed in a second housing (812). A third screen area (823) and a second rear cover (832) may be disposed in a third housing (813).

[0160] In one embodiment, the second rear cover (832) may be placed in an area facing the display surface of the display (820) (e.g., the first screen area (821)) in the folded state (801) of the mobile electronic device (800) (or an area close to or in contact with the display surface of the display (820). The first rear cover (831) may be placed in an area spaced apart from the display surface of the display (820) by a certain distance or more, regardless of the deformed state (folded state (801) and / or unfolded state (802)) of the mobile electronic device (800).

[0161] In this structure, different types of uneven patterns (842, 852) may be formed on the surface (or outer surface) of the second rear cover (832) and the surface (or outer surface) of the first rear cover (831), respectively. A second uneven pattern (842) may be formed on the surface of the second rear cover (832) (e.g., cover layer (841)). A first uneven pattern (852) may be formed on the surface of the first rear cover (831) (e.g., cover layer (851)). For example, the second uneven pattern (842) may be formed with the corners of the first uneven pattern (852) rounded to protect the display surface of the display (720). For example, the second uneven pattern (842) may be formed to have a softer hardness characteristic compared to the first uneven pattern (852) to protect the display surface of the display (720).

[0162] FIG. 9a is a drawing illustrating a rear cover (911), a housing (912), and a case (913) for a mobile phone type electronic device (e.g., a fixed form factor type smartphone) according to one embodiment.

[0163] According to one embodiment, the mobile electronic device (101) may be a fixed form factor type electronic device (e.g., the mobile electronic device (200) of FIG. 2, a smartphone).

[0164] In one embodiment, the rear cover (911) (e.g., the rear cover (400) of FIG. 4a) may have a structure in which an internal multilayer structure and an uneven pattern on the surface (or outer surface) are combined. The rear cover (911) may be included in the housing (912) of an electronic device of a fixed form factor type or may be implemented integrally with said housing (912). The rear cover (911) may also be implemented as an independent case (913) that is detachable from said electronic device.

[0165] According to one embodiment, an electronic device comprising a housing (912) including a rear cover (911) or a case (913) including the rear cover (911) may provide improved fingerprint / chemical resistance. Additionally, it may improve grip and provide an anti-slip effect.

[0166] FIG. 9b is a drawing illustrating a rear cover (921), a housing (922), and a case (923) for an electronic device of a first foldable type (e.g., a vertical foldable type) according to one embodiment.

[0167] According to one embodiment, the mobile electronic device (101) may be a first foldable type electronic device (e.g., a foldable smartphone).

[0168] In one embodiment, the rear cover (921) (e.g., the rear cover (400) of FIG. 4a) may have a structure in which an internal multilayer structure and an uneven pattern on the surface (or outer surface) are combined. The rear cover (921) may be included in the housing (922) of the first foldable type electronic device or may be implemented integrally with the housing (922). The rear cover (921) may also be implemented as an independent case (923) that is detachable from the electronic device.

[0169] FIG. 9c is a drawing illustrating a rear cover (931), a housing (932), and a case (933) for an electronic device of a second foldable type (e.g., a horizontally oriented foldable type) according to one embodiment.

[0170] According to one embodiment, the mobile electronic device (101) may be a second foldable type electronic device (e.g., a foldable smartphone).

[0171] In one embodiment, the rear cover (931) (e.g., the rear cover (400) of FIG. 4a) may have a structure in which an internal multilayer structure and an uneven pattern on the surface (or outer surface) are combined. The rear cover (931) may be included in the housing (932) of the second foldable type electronic device or may be implemented integrally with the housing (932). The rear cover (931) may also be implemented as an independent case (933) that is detachable from the electronic device.

[0172] FIG. 10a is a drawing illustrating a rear cover (1011), a housing (1012), and a case (1013) for a tablet-type electronic device according to one embodiment.

[0173] According to one embodiment, the mobile electronic device (101) may be a tablet-type electronic device. In one embodiment, the rear cover (1011) (e.g., the rear cover (400) of FIG. 4a) may have a structure in which an internal multilayer structure and an uneven pattern on the surface (or outer surface) are combined. The rear cover (1011) may be included in the housing (1012) of the tablet-type electronic device or may be implemented integrally with the housing (1012). The rear cover (1011) may also be implemented as an independent case (1013) that is detachable from the electronic device.

[0174] FIG. 10b is a drawing illustrating a rear cover (1051) and a housing (1052) for a laptop computer type electronic device according to one embodiment.

[0175] According to one embodiment, the mobile electronic device (101) may be a laptop computer type electronic device. In one embodiment, the rear cover (1051) (e.g., the rear cover (400) of FIG. 4a) may have a structure in which an internal multilayer structure and an uneven pattern on the surface (or outer surface) are combined. The rear cover (1051) may be included in the housing (1052) of the laptop computer type electronic device or may be implemented integrally with the housing (1052).

[0176] A mobile electronic device according to one embodiment of the present disclosure (e.g., the electronic device (101) of FIG. 1, the mobile electronic device (200) of FIG. 2a and FIG. 2b) may include a housing (e.g., the housing (210) of FIG. 2a and FIG. 2b) that includes a rear cover (e.g., the rear cover (300) of FIG. 2a and FIG. 2b, the rear cover (400) of FIG. 4), and a display (e.g., the display (220) of FIG. 2a and FIG. 2b). The display may include a screen area disposed within the housing and exposed through the front of the mobile electronic device. The above rear cover (e.g., rear cover (300) of FIG. 2a and FIG. 2b, rear cover (400) of FIG. 4) may include a first plate having a first strength (e.g., first plate (420) of FIG. 4), a color layer disposed on a first surface facing a first direction among the two sides of the first plate (e.g., color layer (430) of FIG. 4), a shielding layer disposed on one side of the color layer (e.g., shielding layer (440) of FIG. 4), a second plate disposed on one side of the shielding layer having a second strength higher than the first strength (e.g., second plate (460) of FIG. 4), and a cover layer disposed on a second surface facing a second direction opposite to the first direction among the two sides of the first plate, having an uneven pattern formed thereon (e.g., cover layer (410) of FIG. 4). The uneven pattern may be formed on the outer surface of the cover layer corresponding to the rear of the mobile electronic device.

[0177] According to one embodiment of the present disclosure, the first plate may correspond to a plate made of a transparent material for color expression. The second plate may correspond to a plate made of a translucent or opaque material for strength improvement.

[0178] According to one embodiment of the present disclosure, the first plate may correspond to a plate made of PET (polyethylene terephthalate) material. The second plate may correspond to a plate made of GFRP (glass fiber reinforced polymer) material.

[0179] According to one embodiment of the present disclosure, the mobile electronic device may be at least one of a first electronic device of the mobile phone type, a second electronic device of the tablet type, or a third electronic device of the laptop computer type.

[0180] According to one embodiment of the present disclosure, the mobile electronic device may be a foldable type electronic device. The housing may be a foldable housing.

[0181] According to one embodiment of the present disclosure, the cover layer may include a first region in which the uneven pattern is formed and a second region in which the uneven pattern is not formed. The first region may correspond to the rear region of the first housing, which is grasped by a user when the foldable type electronic device is in a folded state, among the first housing and the second housing of the foldable housing.

[0182] According to one embodiment of the present disclosure, an additional display may be disposed corresponding to the second region.

[0183] According to one embodiment of the present disclosure, the mobile electronic device may be a multi-foldable type electronic device. The housing may be a multi-foldable housing. The display may be a flexible display.

[0184] According to one embodiment of the present disclosure, the cover layer may include a first region in which the uneven pattern is formed and a second region in which the uneven pattern is not formed. The second region may correspond to a region facing the display surface of the flexible display when the multi-foldable type electronic device is in a folded state.

[0185] According to one embodiment of the present disclosure, the cover layer may include a first region in which a first uneven pattern is formed and a second region in which a second uneven pattern is formed. The second uneven pattern may be in the form of rounding the corners of the first uneven pattern. The second region may correspond to an area facing the display surface of the flexible display when the multi-foldable type electronic device is in a folded state.

[0186] According to one embodiment of the present disclosure, the cover layer may include a first region in which a first uneven pattern is formed and a second region in which a second uneven pattern is formed. The second uneven pattern may have a lower strength than the first uneven pattern. The second region may correspond to an area facing the display surface of the flexible display when the multi-foldable type electronic device is in a folded state.

[0187] According to one embodiment of the present disclosure, the cover layer may further include a third region in which an uneven pattern is not formed.

[0188] According to one embodiment of the present disclosure, an additional display may be disposed corresponding to the third region.

[0189] According to one embodiment of the present disclosure, the uneven pattern of the cover layer may include peak portions protruding from the base surface. The spacing between the peak portions may have a value corresponding to 40% to 60% of the size of the peak portions.

[0190] According to one embodiment of the present disclosure, the uneven pattern of the cover layer may include a valley portion and a peak portion. The thickness of the valley portion may have a value in the range of 2 μm to 6 μm from the second surface of the first plate, which is the contact surface in contact with the first plate. The thickness of the peak portion may have a value in the range of 10 μm to 14 μm from the second surface of the first plate.

[0191] According to one embodiment of the present disclosure, the uneven pattern of the cover layer may include at least one of a first pattern in which circular or square peak portions are arranged horizontally on a base surface corresponding to a valley portion, or a second pattern in which circular or square peak portions are arranged diagonally on the base surface.

[0192] According to one embodiment of the present disclosure, the color layer may include a color film disposed on one surface of the first plate, an ultraviolet (UV) mold disposed on one surface of the color film, and a reflective layer disposed between the UV mold and the shielding layer.

[0193] According to one embodiment of the present disclosure, the mobile electronic device may further include an adhesive layer disposed between the shielding layer and the second plate.

[0194] A case for a mobile electronic device according to one embodiment of the present disclosure may include a housing including a rear cover. The rear cover may include a first plate having a first strength, a color layer disposed on a first surface facing a first direction among the two sides of the first plate, a shielding layer disposed on one side of the color layer, a second plate disposed on one side of the shielding layer having a second strength higher than the first strength, and a cover layer disposed on a second surface facing a second direction opposite to the first direction among the two sides of the first plate, having an uneven pattern formed thereon. The uneven pattern may be formed on the outer surface of the cover layer corresponding to the rear of the mobile electronic device.

[0195] According to one embodiment of the present disclosure, the first plate may correspond to a plate made of a transparent material for color expression. The second plate may correspond to a plate made of a translucent or opaque material for strength improvement.

[0196] According to one embodiment of the present disclosure, the first plate may correspond to a plate made of PET (polyethylene terephthalate) material. The second plate may correspond to a plate made of GFRP (glass fiber reinforced polymer) material.

[0197] According to one embodiment of the present disclosure, the mobile electronic device may be a foldable type electronic device. The housing may be a foldable housing.

[0198] According to one embodiment of the present disclosure, the cover layer may include a first region in which the uneven pattern is formed and a second region in which the uneven pattern is not formed. The first region may correspond to the rear region of the first housing, which is grasped by a user when the foldable type electronic device is in a folded state, among the first housing and the second housing of the foldable housing.

[0199] A method for manufacturing a rear cover for a mobile electronic device according to one embodiment of the present disclosure may include the steps of: printing a color film on a first surface facing a first direction among two surfaces of a first plate having a first strength; laminating an ultraviolet (UV) mold on the color film; laminating a reflective layer on the UV mold; laminating a shielding layer on the reflective layer; bonding the shielding layer and a second plate having a second strength higher than the first strength using an adhesive; and laminating a cover layer having an uneven pattern formed on a second surface facing a second direction opposite to the first direction among two surfaces of the first plate using a UV resin. The uneven pattern may be formed on the outer surface facing the second direction among two surfaces of the cover layer.

[0200] According to one embodiment of the present disclosure, a mobile electronic device including a rear cover capable of realizing improved fingerprint resistance or improved chemical resistance (or durability), a case for a mobile electronic device, and a method for manufacturing the rear cover can be provided.

[0201] According to one embodiment of the present disclosure, a mobile electronic device including a rear cover having an efficient material and / or structure considering portability, grip strength, user experience, or convenience, a case for a mobile electronic device, and a method for manufacturing the rear cover can be provided.

[0202] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood from the above description by those skilled in the art to which the present disclosure belongs.

[0203] The electronic device according to the various embodiments disclosed in this document may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiments of this document is not limited to the devices described above.

[0204] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In this document, phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B or C," "at least one of A, B and C," and "at least one of A, B, or C" may each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as “coupled” or “connected” to another (e.g., 2nd) component, with or without the terms “functionally” or “communicationly,” it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0205] The term “module” as used in the various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0206] Various embodiments of the present document may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored in the storage medium and execute it. This enables the machine to be operated to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0207] According to one embodiment, the method according to the various embodiments disclosed herein may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or distributed online (e.g., download or upload) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0208] According to various embodiments, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to various embodiments, one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to various embodiments, operations performed by the module, program, or other components may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In a mobile electronic device, Housing including a rear cover; and A display comprising a screen area disposed within the above housing and exposed through the front of the mobile electronic device, and The above rear cover is, A first plate having a first strength; A color layer disposed on the first surface facing the first direction among the two sides of the first plate; A shielding layer disposed on one side of the above-mentioned color layer; A second plate disposed on one side of the shielding layer and having a second strength higher than the first strength; and It includes a cover layer having an uneven pattern formed thereon, disposed on a second surface facing a second direction opposite to the first direction among the two sides of the first plate. A mobile electronic device, wherein the above-mentioned uneven pattern is formed on the outer surface of the cover layer corresponding to the rear of the mobile electronic device.

2. In Claim 1, The first plate above corresponds to a plate made of a transparent material for color expression, and The above second plate is a mobile electronic device corresponding to a plate of translucent or opaque material for improving strength.

3. In Claim 1, The first plate above corresponds to a plate made of PET (polyethylene terephthalate) material, and The above second plate is a mobile electronic device corresponding to a plate made of GFRP (glass fiber reinforced polymer) material.

4. In Claim 1, The above mobile electronic device is at least one of a first electronic device of the mobile phone type, a second electronic device of the tablet type, or a third electronic device of the laptop computer type.

5. In Claim 1, The above mobile electronic device is a foldable type electronic device, and The above housing is a foldable housing, a mobile electronic device.

6. In Claim 5, The above cover layer includes a first region in which the above uneven pattern is formed and a second region in which the above uneven pattern is not formed, The above first region is a mobile electronic device that corresponds to the rear region of the first housing, which is grasped by a user in a folded state, among the first housing and the second housing of the foldable housing.

7. In Claim 6, A mobile electronic device in which an additional display is disposed corresponding to the second area above.

8. In Claim 1, The above mobile electronic device is a multi-foldable type electronic device, and The above housing is a multi-foldable housing, and The above display is a flexible display, a mobile electronic device.

9. In Claim 8, The above cover layer includes a first region in which the above uneven pattern is formed and a second region in which the above uneven pattern is not formed, The above second region is a mobile electronic device corresponding to a region facing the display surface of the flexible display when the multi-foldable type electronic device is in a folded state.

10. In Claim 1, The uneven pattern of the above cover layer includes peak portions protruding from the base surface, and A mobile electronic device in which the spacing between the above peak portions has a value corresponding to 40% to 60% of the size of the peak portions.

11. In Claim 1, A mobile electronic device wherein the uneven pattern of the cover layer comprises a valley portion and a peak portion, the thickness of the valley portion has a value in the range of 2㎛ to 6㎛ from the second surface of the first plate which is a contact surface in contact with the first plate, and the thickness of the peak portion has a value in the range of 10㎛ to 14㎛ from the second surface of the first plate.

12. In Claim 1, A mobile electronic device wherein the uneven pattern of the cover layer comprises at least one of a first pattern in which circular or square peak portions are arranged horizontally on a base surface corresponding to a valley portion, or a second pattern in which circular or square peak portions are arranged diagonally on the base surface.

13. In Claim 1, The above color layer is, A color film disposed on one surface of the first plate; An ultraviolet (UV) mold disposed on one side of the above-mentioned color film; and A mobile electronic device comprising a reflective layer disposed between the above UV mold and the above shielding layer.

14. In Claim 1, A mobile electronic device further comprising an adhesive layer disposed between the shielding layer and the second plate.

15. In a case for a mobile electronic device, It includes a housing that includes a rear cover, and The above rear cover is, A first plate having a first strength; A color layer disposed on the first surface facing the first direction among the two sides of the first plate; A shielding layer disposed on one side of the above-mentioned color layer; A second plate disposed on one side of the shielding layer and having a second strength higher than the first strength; and It includes a cover layer having an uneven pattern formed thereon, disposed on a second surface facing a second direction opposite to the first direction among the two sides of the first plate. The above-mentioned uneven pattern is formed on the outer surface facing the second direction among the two sides of the cover layer, for a case for a mobile electronic device.

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