Rear cover of electronic device

Abstract

A rear cover of an electronic device, according to an embodiment of the present disclosure, may comprise a protective layer comprising fiber reinforced plastic (FRP). In an embodiment, the rear cover of the electronic device may comprise a pattern layer disposed on the other surface of the protective layer. In an embodiment, the protective layer may comprise a first arrangement and a second arrangement disposed in a direction perpendicular to the first arrangement. In an embodiment, the pattern layer may be disposed to form a first angle with the first arrangement and the second arrangement. In an embodiment, a design may be implemented on the rear cover by combining the protective layer and the pattern layer. Various other embodiments are possible.

Description

Rear cover of an electronic device

[0001] The various embodiments disclosed in this document relate to a rear cover of an electronic device.

[0002] Along with technological advancements, electronic devices are evolving in a direction that involves becoming slimmer and lighter, while simultaneously becoming high-performance to perform a variety of functions. Furthermore, the exterior design of electronic devices serves as a crucial factor in influencing consumer interest and purchasing decisions.

[0003] When applying various design elements to the rear cover of electronic devices, there is a need for various methods that can pursue both aesthetics and robustness.

[0004] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art related to the present disclosure.

[0005] A rear cover of an electronic device may include a protective layer comprising glass fiber reinforced plastic (GFRP), and a pattern layer disposed on the upper surface of the protective layer to conceal the fiber arrangement of the protective layer (e.g., a first arrangement and a second arrangement). The rear cover can protect the electronic device from physical impact or abrasion through the protective layer comprising glass fiber reinforced plastic, which ensures strength and lightness. Additionally, the fiber arrangement of the protective layer can be concealed through the pattern layer, and a design can be implemented on the rear cover.

[0006] However, since a pattern layer with relatively lower strength compared to the protective layer is placed on the outer surface (e.g., one side) of the rear cover, the rear cover of the electronic device may be sensitive to damage caused by physical impact or environmental changes.

[0007] The technical tasks intended to be accomplished in this document are not limited to those mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art to which this document belongs from the description below.

[0008] A rear cover of an electronic device according to one embodiment of the present disclosure may include a protective layer comprising fiber reinforced plastic (FRP). In one embodiment, the rear cover of the electronic device may include a pattern layer disposed on the other side of the protective layer. In one embodiment, the protective layer may include a first array and a second array disposed in a direction perpendicular to the first array. In one embodiment, the pattern layer may be disposed to form a first angle with the first array and the second array. In one embodiment, a design may be implemented on the rear cover by combining the protective layer and the pattern layer.

[0009] A rear cover of an electronic device according to one embodiment of the present disclosure may include a first protective layer comprising glass fiber reinforced plastic (GFRP). In one embodiment, the rear cover of the electronic device may include a pattern layer disposed on the other side of the first protective layer. In one embodiment, the rear cover of the electronic device may include a second protective layer disposed on the pattern layer and comprising glass fiber reinforced plastic. In one embodiment, the first protective layer may include a first-1 array and a second-1 array disposed in a direction perpendicular to the first-1 array. In one embodiment, the second protective layer may include a first-2 array and a second-2 array disposed in a direction perpendicular to the first-2 array. In one embodiment, the pattern layer may be disposed to form a first angle with the first-1 array and the second-1 array. In one embodiment, the pattern layer may be disposed to form a second angle with the first-2 array and the second-2 array. In one embodiment, a design can be implemented on the rear cover by combining the first protective layer, the pattern layer, and the second protective layer.

[0010] A rear cover of an electronic device according to one embodiment of the present invention may include a protective layer comprising glass fiber reinforced plastic (GFRP) and a pattern layer disposed on the lower surface of the protective layer. By disposing of a protective layer having a relatively higher strength than the pattern layer on the outer surface of the rear cover, the rear cover of the electronic device can improve resistance to scratches and environmental changes.

[0011] Additionally, the pattern layer can be combined with the fiber arrangement of the protective layer to implement a design on the rear cover. For example, if the fiber arrangement of the protective layer and the pattern layer are positioned to form a specific angle (e.g., a first angle), the fiber arrangement of the protective layer may not be identifiable on the outer surface of the rear cover, or a visual effect (e.g., a wave pattern) may be identifiable on the outer surface of the rear cover. Alternatively, by adjusting the spacing between the fiber arrangement of the protective layer and the pattern of the pattern layer, a visual effect (e.g., a three-dimensional effect) may be identifiable on the outer surface of the rear cover.

[0012] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs from the description below.

[0013] In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0014] FIG. 1 is a front perspective view of an electronic device according to various embodiments of the present disclosure.

[0015] FIG. 2 is a perspective view of the rear of the electronic device of FIG. 1 according to various embodiments of the present disclosure.

[0016] FIG. 3 is an exploded perspective view of an electronic device according to various embodiments of the present disclosure.

[0017] FIG. 4a is an exploded perspective view of a rear cover including a protective layer according to various embodiments of the present disclosure.

[0018] FIG. 4b is an exploded perspective view of a rear cover including a first protective layer and a second protective layer according to various embodiments of the present disclosure.

[0019] FIG. 5 is a cross-sectional view of a rear cover cut along the CC line of FIG. 3 according to various embodiments of the present disclosure.

[0020] FIG. 6a is a plan view of a protective layer according to various embodiments of the present disclosure.

[0021] FIG. 6b is a plan view of a pattern layer arranged to form a first angle of 45 degrees with a first array and a second array of protective layers according to various embodiments of the present disclosure.

[0022] FIG. 6c is a plan view of a pattern layer arranged to form a first angle greater than 0 degrees and less than 45 degrees with a first arrangement and a second arrangement of a protective layer according to various embodiments of the present disclosure.

[0023] FIG. 6d is a plan view of a first pattern and a second pattern of a pattern layer arranged to form a first angle with a first array and a second array of a protective layer according to various embodiments of the present disclosure.

[0024] FIG. 7a is an enlarged view of a rear cover in which the protective layer and the pattern layer are not combined, according to various embodiments of the present disclosure.

[0025] FIG. 7b is an enlarged view of a rear cover in which a protective layer and a pattern layer are combined according to FIG. 6b and / or FIG. 6d, according to various embodiments of the present disclosure.

[0026] FIG. 7c is an enlarged view of a rear cover in which a protective layer and a pattern layer are combined according to FIG. 6c, according to various embodiments of the present disclosure.

[0027] FIG. 8a is a plan view according to various embodiments of the present disclosure in which the spacing of the pattern layer is twice as large as the spacing of the protective layer.

[0028] FIG. 8b is a plan view according to various embodiments of the present disclosure in which the spacing of the pattern layer is three times larger than the spacing of the protective layer.

[0029] FIG. 9 is an enlarged view of a rear cover in which a protective layer and a pattern layer are combined according to FIG. 8a and / or FIG. 8b, according to various embodiments of the present disclosure.

[0030] In the following description, various embodiments of this document are described with reference to the accompanying drawings. 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.

[0031] In relation to the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of the noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise.

[0032] In this document, each of the phrases such as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B or C,” “at least one of A, B and C,” and “at least one of A, B, or C” may include any one 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 a component from another component and do not limit the components in any other aspect (e.g., importance or order). Where any (e.g., first) component is referred to as “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicationly,” it means that said component may be connected to said other component directly (e.g., wired), wirelessly, or through a third component.

[0033] FIG. 1 is a front perspective view of an electronic device (100) according to various embodiments of the present disclosure. FIG. 2 is a rear perspective view of the electronic device (100) of FIG. 1 according to various embodiments of the present disclosure.

[0034] Referring to FIGS. 1 and 2, an electronic device (100) (e.g., a mobile electronic device or a portable communication device) may include a housing (110) (e.g., a housing structure) comprising a front (or first surface) (110A), a rear (or second surface) (110B), and a side (110C) surrounding the space between the front (110A) and the rear (110B). In other embodiments (not shown), the housing may refer to a structure forming some of the front (110A), rear (110B), and side (110C) of FIG. 1. According to one embodiment, the front (110A) may be formed by a front cover (102) (e.g., a glass plate, a front plate, or a polymer plate comprising various coating layers) in which at least a portion is substantially transparent. The rear (110B) may be formed by a rear cover (111) that is substantially opaque. The rear cover (111) (e.g., rear plate) may be formed by, for example, coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the above materials. The side (110C) may be formed by a side frame (118) (e.g., side bezel structure or side member) comprising metal and / or polymer, which is combined with the front cover (102) and the rear cover (111). In some embodiments, the rear cover (111) and the side frame (118) may be formed integrally and may comprise the same material (e.g., a metallic material such as aluminum).

[0035] In the illustrated embodiment, the front cover (102) may include a first region (110D) that curves seamlessly from the front (110A) toward the rear cover (111) at both ends of the long edge of the front cover (102). In the illustrated embodiment (see FIG. 2), the rear cover (111) may include a second region (110E) that curves seamlessly from the rear (110B) toward the front cover (102) at both ends of the long edge. In some embodiments, the front cover (102) or the rear cover (111) may include only one of the first region (110D) or the second region (110E). In some embodiments, the front cover (102) may not include the first region and the second region, but may include only a flat plane positioned parallel to the rear (110B). In the above embodiments, when viewed from the side of the electronic device (100), the side frame (118) may have a first thickness (or width) on the side that does not include the first region (110D) or the second region (110E) as described above, and may have a second thickness that is thinner than the first thickness on the side that includes the first region (110D) or the second region (110E).

[0036] According to various embodiments, the electronic device (100) may include at least one of a display (101), an input device (103), an audio output device (107, 114), a sensor module (104, 119), a camera module (105, 112), a key input device (117), an indicator (not shown), and a connector (108). In some embodiments, the electronic device (100) may omit at least one of the components (e.g., a key input device (117), or an indicator) or additionally include other components.

[0037] The display (101) may be exposed, for example, through a substantial portion of the front cover (102). In some embodiments, at least a portion of the display (101) may be exposed through the front cover (102) forming a first area (110D) of the front (110A) and side (110C). The display (101) may be combined with or placed adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of the touch, and / or a digitizer that detects a magnetic field-type stylus pen. In some embodiments, at least a portion of the sensor module (104, 119) and / or at least a portion of the key input device (117) may be placed in the first area (110D) and / or the second area (110E).

[0038] The input device (103) may include a microphone (103). In some embodiments, the input device (103) may include a plurality of microphones (103) arranged to detect the direction of sound. The sound output device (107, 114) may include speakers (107, 114). The speakers (107, 114) may include an external speaker (107) and a call receiver (114). In some embodiments, the microphone (103), speakers (107, 114), and connector (108) may be placed in at least part of the internal space of the electronic device (100) and may be exposed to the external environment through at least one hole formed in the housing (110). In some embodiments, the hole formed in the housing (110) may be used in common for the microphone (103) and the speakers (107, 114). In some embodiments, the acoustic output device (107, 114) may include a speaker (e.g., a piezo speaker) that is operated with the hole formed in the housing (110) excluded.

[0039] The sensor module (104, 119) can generate an electrical signal or data value corresponding to an internal operating state of the electronic device (100) or an external environmental state. The sensor module (104, 119) may include, for example, a first sensor module (104) (e.g., proximity sensor) and / or a second sensor module (not shown) (e.g., fingerprint sensor) placed on the front (110A) of the housing (110), and / or a third sensor module (119) (e.g., HRM sensor) placed on the rear (110B) of the housing (110). The fingerprint sensor may be placed on the front (110A) of the housing (110) (e.g., home key button), a portion of the rear (110B), and / or below the display (101). The electronic device (100) may further include at least one of the unillustrated sensor modules, 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, a proximity sensor, or an illuminance sensor.

[0040] The camera module (105, 112) may include a first camera module (105) disposed on the front (110A) of the electronic device (100), a second camera module (112) disposed on the rear (110B), and / or a flash (113). The camera modules (105, 112) may include one or more lenses, an image sensor, and / or an image signal processor. The flash (113) may include, for example, a light-emitting diode or a xenon lamp. In some embodiments, two or more lenses (wide-angle lenses, ultra-wide-angle lenses, or telephoto lenses) and image sensors may be disposed on one side of the electronic device (100).

[0041] A key input device (117) may be placed on the side (110C) of the housing (110). In another embodiment, the electronic device (100) may not include some or all of the aforementioned key input devices (117), and the key input device (117) not included may be implemented in other forms, such as soft keys, on the display (101). In another embodiment, the key input device (117) may be implemented using a pressure sensor included in the display (101).

[0042] An indicator may be placed, for example, on the front (110A) of the housing (110). The indicator may provide status information of the electronic device (100), for example, in the form of light (e.g., a light-emitting element). In another embodiment, the light-emitting element may provide a light source that corresponds to the operation of the camera module (105), for example. The indicator may include, for example, an LED, an IR LED, and / or a xenon lamp.

[0043] The connector hole (108) may include a first connector hole (108) capable of receiving a connector (e.g., a USB (universal serial bus) connector) for transmitting and receiving power and / or data with an external electronic device, and / or a second connector hole (or earphone jack) (not shown) capable of receiving a connector for transmitting and receiving audio signals with an external electronic device.

[0044] Some of the camera modules (105, 112), some of the sensor modules (104, 119), or indicators may be positioned to be exposed through the display (101). For example, the camera module (105), sensor module (104), or indicator may be positioned in the internal space of the electronic device (100) to come into contact with the external environment through a through hole perforated to the front cover (102) of the display (101). In another embodiment, some of the sensor modules (104) may be positioned to perform their function without being visually exposed through the front cover (102) in the internal space of the electronic device. For example, the area of ​​the display (101) facing the sensor module may not require a through hole.

[0045] According to various embodiments, the electronic device (100) may include a composite tape (e.g., the composite tape (130) of FIG. 3) for providing an internal space of a sealed housing (110) by positioning the rear cover (111) between the rear cover (111) and the side frame (113) and attaching the rear cover (111) to the side frame (118). In one embodiment, the sealed internal space of the housing (110) may provide a waterproof and / or anti-fouling function to protect the aforementioned electrical components from external moisture and / or foreign substances.

[0046] According to various embodiments, the electronic device (100) may include an opening (111c) disposed on the rear (110B) and a finishing member (120) that can fill at least a portion of the opening (111c) by being received in at least a portion of the opening (111c). In one embodiment, the opening (111c) may be formed through a notch (111a) in which a portion of the edge of the rear cover is removed. In one embodiment, the finishing member (120) may be removed from the opening (111c) when maintenance is required, such as when replacement of the aforementioned electrical components disposed in the internal space of the housing (110) or replacement of the rear cover (111). In one embodiment, at least a portion of the composite tape (130) may be exposed to be visible from the outside through the opening (111c) from which the finishing member (120) has been removed. In one embodiment, at least a portion of the composite tape (130) exposed through the opening (111c) can be pulled out to the outside by a user (operator) (e.g., pulled), and the composite tape (130), including a stretchable tape member (e.g., the second tape member (132) of FIG. 3b), can be stretched, thereby weakening the adhesive force through a reduction in the adhesive area, which can induce easy separation of the rear cover (111) from the side frame (118).

[0047] FIG. 3 is an exploded perspective view of an electronic device (100) according to various embodiments of the present disclosure.

[0048] Referring to FIG. 3, the electronic device (100) may include a side frame (118) (e.g., a side bezel structure or a side member), an extension member (1181) (e.g., a bracket, a support member or a support structure), a front cover (102) (e.g., a front plate, a first plate or a first cover), a display (101), at least one substrate (140) including a camera module (112), a battery (B), and a rear cover (111) (e.g., a rear plate, a second plate or a second cover). In some embodiments, the electronic device (100) may omit at least one of the components or additionally include other components. At least one of the components of the electronic device (100) may be identical or similar to at least one of the components of the electronic device (100) of FIG. 1 or FIG. 2, and redundant descriptions are omitted below.

[0049] According to various embodiments, the extension member (1181) may be disposed inside the electronic device (100) and connected to the side frame (118), or may be formed integrally with the side frame (118). The extension member (1181) may be formed, for example, from a metal material and / or a non-metal (e.g., polymer) material. The extension member (1181) may have a display (101) attached to a first surface (118a) and at least one substrate (140) attached to a second surface (118b) opposite to the first surface (118a). The electronic device (100) may include a processor, memory, and / or interface disposed on at least one substrate (140). 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.

[0050] Memory may include, for example, volatile memory or non-volatile memory.

[0051] The interface may include, for example, an HDMI (high definition multimedia interface), a USB (universal serial bus) interface, an SD card interface, and / or an audio interface. The interface may, for example, electrically or physically connect the electronic device (100) to an external electronic device and may include a USB connector, an SD card / MMC connector, or an audio connector.

[0052] The battery (B) is a device for supplying power to at least one component of the electronic device (100) 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 (B) may be disposed substantially coplanar with, for example, the substrate (140). The battery (B) may be disposed integrally with the electronic device (100) inside the electronic device (100). In another embodiment, the battery (B) may be disposed detachably from the electronic device (100).

[0053] According to various embodiments, the electronic device may include a waterproof tape (e.g., an adhesive member or double-sided tape) disposed between a display and a first surface of an extension member. By being disposed along the edge between the back surface of the display and the first surface, the waterproof tape may provide a sealed space between the display and the first surface.

[0054] According to various embodiments, the electronic device (100) may include a composite tape (130) disposed between the rear cover (111) and the second side (118b) of the side frame (118). In one embodiment, the composite tape (130) may be disposed in a closed loop along the edge between the second side (118b) of the extension member (1181) and the rear cover (111). In one embodiment, electrical components such as the aforementioned substrate (140), battery (B), and camera module (112) may be protected from external moisture and / or foreign matter by being disposed in the sealed space between the rear cover (111) and the extension member (118) through the composite tape (130).

[0055] According to an exemplary embodiment of the present disclosure, the electronic device (100) may include a separation structure for easily separating the rear cover (111) from the side frame (118) for maintenance while in an assembled state. For example, a composite tape (130) may be positioned so that at least a portion is visible from the outside or operablely exposed through an opening (e.g., opening (111c) of FIG. 2) provided through a notch (111a) formed in at least a portion of the edge (e.g., edge) of the rear cover (111).

[0056] According to various embodiments, the composite tape (130) may include at least one first tape member (e.g., the first tape member (131) of FIG. 3b) and a second tape member (e.g., the second tape member (132) of FIG. 3b) formed of an extendable material laminated to the first tape member (131). Thus, the composite tape (130) exposed through the opening (111c) is stretched in such a way that the adhesive area is reduced when pulled outward by a user (e.g., an operator), and the reduction in the adhesive area can help to easily separate the rear cover from the side frame. In one embodiment, the opening (111c) may be covered by a finishing member (e.g., a decorative member or deco) that is detachably disposed to prevent the ingress of external moisture and / or foreign matter and to form an aesthetic appearance.

[0057] FIG. 4a is an exploded perspective view of a rear cover (200) including a protective layer (220) according to various embodiments of the present disclosure. FIG. 4b is an exploded perspective view of a rear cover (200) including a first protective layer (221) and a second protective layer (222) according to various embodiments of the present disclosure. FIG. 5 is a cross-sectional view of a rear cover (200) cut along the CC line of FIG. 3 according to various embodiments of the present disclosure.

[0058] The rear cover (200) of FIG. 4a may be at least partially similar to the rear cover (111) of FIG. 2 and FIG. 3, or may include other embodiments of the rear cover (111). The front (200a) of the rear cover (200) of FIG. 4a may be at least partially similar to the rear (110B) of the electronic device (100) of FIG. 2 and FIG. 3, or may include other embodiments of the rear (110B) of the electronic device (100).

[0059] Referring to FIG. 4a, the rear cover (200) may include a coating layer (210), a protective layer (220) (e.g., a composite material layer or a fiber-reinforced plastic layer), a pattern layer (230) (e.g., a design layer), and a color layer (240) (e.g., a color layer). Referring to FIG. 4b, the rear cover (200) may include a coating layer (210), a first protective layer (221), a pattern layer (230), a second protective layer (222), and a color layer (240). In some embodiments, the rear cover (200) may omit at least one of the components (e.g., the coating layer (210) and / or the color layer (240)) or additionally include another component (e.g., the protective layer (220)).

[0060] In one embodiment, referring to FIGS. 4a and 4b, the rear cover (200) may include a coating layer (210) to protect an electronic device (e.g., the electronic device (100) of FIGS. 1 and 2) from external foreign matter (e.g., moisture or dust) by being located on the front surface (200a) of the rear cover (200) (e.g., the surface facing the -z axis in FIGS. 4a). In one embodiment, the coating layer (210) may be formed with a thin thickness compared to each of the protective layer (220), the pattern layer (230), and the color layer (240). In one embodiment, the coating layer (210) may be formed of a polycarbonate or ceramic material to prevent scratches on the rear cover (200).

[0061] In one embodiment, referring to FIGS. 4a and 4b, the rear cover (200) may include a protective layer (220) (e.g., a first protective layer (221) and / or a second protective layer (222)) to protect an electronic device (e.g., the electronic device (100) of FIGS. 1 and 2) from physical impact or environmental changes.

[0062] In one embodiment, referring to FIG. 4a, the protective layer (220) may be disposed on the other side of the coating layer (210) (e.g., the side facing the +z-axis in FIG. 4a). The protective layer (220) may be disposed between the coating layer (210) and the pattern layer (230).

[0063] In one embodiment, referring to FIG. 4b, the first protective layer (221) and the second protective layer (222) may be disposed on the other side of the coating layer (210) (e.g., the side facing the +z-axis in FIG. 4a). The first protective layer (221) may be disposed between the coating layer (210) and the pattern layer (230). The second protective layer (222) may be disposed between the pattern layer (230) and the color layer (240).

[0064] In one embodiment, the protective layer (220) may include fiber reinforced plastic (FRP), which is a composite material, and may be composed of resin and fiber. The resin may be a thermosetting resin and may include epoxy resin or polyester resin. The fiber may include any one of glass fiber, carbon fiber, or Kevlar fiber. In one embodiment, the protective layer (220) may be formed in a form in which the fiber is pre-impregnated with resin (e.g., prepreg). In one embodiment, through the protective layer (220) containing fiber reinforced plastic, strength, heat resistance, electrical insulation, water resistance, chemical resistance, and lightweight properties can be secured to prevent damage to the rear cover (200) due to external impact. In one embodiment, resistance to corrosion and electrical insulation can be secured through the protective layer (220) containing fiber reinforced plastic.

[0065] In one embodiment, the protective layer (220) may comprise glass fiber reinforced plastic (GFRP) having a fiber content of about 50% or more and 70% or less. For example, the protective layer (220) may comprise glass fiber reinforced plastic composed of glass fiber and epoxy resin in a ratio of about 7:3.

[0066] In one embodiment, referring to FIGS. 4a and 4b, the rear cover (200) may include a pattern layer (230) that implements a design on one side (200a) of the rear cover (200) in combination with a protective layer (220).

[0067] In one embodiment, referring to FIG. 4a, the pattern layer (230) may be placed on the other side (220b) of the protective layer (220) (e.g., the side facing the +z axis in FIG. 4a). The pattern layer (230) may be placed between the other side (220b) of the protective layer (220) and one side of the color layer (240) (e.g., the side facing the -z axis in FIG. 4a).

[0068] In one embodiment, referring to FIG. 4b, the pattern layer (230) may be disposed between the other side (221b) of the first protective layer (221) (e.g., the side facing the +z axis in FIG. 4b) and the one side (222a) of the second protective layer (222) (e.g., the side facing the -z axis in FIG. 4b). The pattern layer (230) may be disposed between the first protective layer (221) and the second protective layer (222).

[0069] In one embodiment, referring to FIG. 4a and FIG. 5 and FIG. 6a to be described later, the spacing (L2) of the pattern layer (230) is adjusted with respect to the spacing (L1) of the protective layer (220) so that light (R) incident on the lower part of the pattern layer (230) (e.g., the surface facing the +z-axis direction in FIG. 5) is refracted through the pattern layer (230) and the protective layer (220) to create a design on the front surface (200a) of the rear cover (200). For example, if the spacing (L2) of the pattern layer (230) is smaller than the spacing (L1) of the protective layer (220), the first array (2201) and the second array (2202) of the protective layer (220) may not be identifiable on the front surface (200a) of the rear cover (200).

[0070] In one embodiment, referring to FIGS. 4a and FIGS. 4b, the rear cover (200) may include a color layer (240) that implements a color on the rear cover (200).

[0071] In one embodiment, referring to FIG. 4a, the color layer (240) may be placed on the other side (230b) of the pattern layer (230) (e.g., the side facing the +z axis of FIG. 4a). The coating layer (210), the protective layer (220), the pattern layer (230), and the color layer (240) may be sequentially stacked in the +z axis direction of FIG. 4a.

[0072] In one embodiment, referring to FIG. 4b, the color layer (240) may be placed on the other side (222b) of the second protective layer (222) (e.g., the side facing the +z axis of FIG. 4b). The coating layer (210), the first protective layer (221), the pattern layer (230), the second protective layer (222), and the color layer (240) may be sequentially stacked in the +z axis direction of FIG. 4b.

[0073] In one embodiment, the color layer (240) may be formed by depositing a metal or oxide on the back cover (200). For example, a metal such as indium or an oxide such as titanium oxide, silicon oxide, or aluminum oxide may be deposited on the back cover (200) to have a specific color.

[0074] In one embodiment, an adhesive (not shown) may be applied between the coating layer (210), the protective layer (220), the pattern layer (230), and the color layer (240). The adhesive may be a pressure-sensitive adhesive (PSA) or an optical clear adhesive (OCA). The coating layer (210), the protective layer (220), the pattern layer (230), and the color layer (240) may be bonded together through the adhesive.

[0075] FIG. 6a is a plan view of a protective layer (220) according to various embodiments of the present disclosure. FIG. 6b is a plan view of a pattern layer (230) arranged to form a first angle (A) of 45 degrees with the first array (2201) and the second array (2202) of the protective layer (220) according to various embodiments of the present disclosure. FIG. 6c is a plan view of a pattern layer (230) arranged to form a first angle (A) greater than 0 degrees and less than 45 degrees with the first array (2201) and the second array (2202) of the protective layer (220) according to various embodiments of the present disclosure. FIG. 6d is a plan view of a first pattern (2301) and a second pattern (2302) of a pattern layer (230) arranged to form a first angle (A) with a first array (2201) and a second array (2202) of a protective layer (220) according to various embodiments of the present disclosure. FIG. 7a is an enlarged view of a rear cover in which the protective layer (220) and the pattern layer (230) are not combined according to various embodiments of the present disclosure. FIG. 7b is an enlarged view of a rear cover (200) in which the protective layer (220) and the pattern layer (230) are combined according to FIG. 6b and / or FIG. 6d according to various embodiments of the present disclosure. FIG. 7c is an enlarged view of a rear cover (200) in which the protective layer (220) and the pattern layer (230) are combined according to FIG. 6c according to various embodiments of the present disclosure.

[0076] At least one of the components of the rear cover (200) of FIG. 6a, FIG. 6b, FIG. 6c, FIG. 6d, FIG. 7a, FIG. 7b, and FIG. 7c may be identical or similar to at least one of the components of the rear cover (200) of FIG. 4a, FIG. 4b, or FIG. 5, and redundant descriptions are omitted below.

[0077] In one embodiment, referring to FIG. 6a, the protective layer (220) may include a first arrangement (2201) (e.g., a weft or transverse fiber arrangement) and a second arrangement (2202) (e.g., a warp or longitudinal fiber arrangement). The first arrangement (2201) may be arranged perpendicular to the second arrangement (2202) in the direction of the x-axis (e.g., in FIG. 6a).

[0078] In one embodiment, with reference to FIGS. 6a, 6b, 6c, and 6d and FIGS. 8a and 8b to be described later, each of the first array (2201) and the second array (2202) of the protective layer (220) may be arranged at substantially constant intervals (L1). The first array (2201) may be arranged substantially parallel to the x-axis direction of FIG. 6a. The second array (2202) may be arranged substantially parallel to the y-axis direction of FIG. 6a.

[0079] In one embodiment, referring to FIGS. 6a, 6b, 6c, and 6d and FIGS. 8a and 8b to be described later, the spacing (L1) of each of the first array (2201) and the second array (2202) of the protective layer (220) may be formed to be greater than 0.3 mm and less than or equal to 0.5 mm. In one embodiment, the diameter (t1) of each of the first array (2201) and the second array (2202) of the protective layer (220) may be formed to be greater than or equal to 0.05 mm and less than or equal to 0.2 mm.

[0080] In one embodiment, with reference to FIGS. 5, FIGS. 6a, FIGS. 6b, FIGS. 6c, and FIGS. 6d and FIGS. 8a and FIGS. 8b to be described later, the cross-sections of the first array (2201) and the second array (2202) of the protective layer (220) may be formed in a circular shape.

[0081] In one embodiment, with reference to FIG. 6a and FIG. 7a, when the pattern layer (230) is not placed on the other side (220b) of the protective layer (220) (e.g., the side facing the +z-axis in FIG. 6a), at least a portion of the first array (2201) and the second array (2202) of the protective layer (220) can be identified on the front (200a) of the rear cover (200).

[0082] In one embodiment, with reference to FIGS. 6b, 6c, and 6d, the pattern layer (230) may be arranged substantially parallel to each other at L2 intervals. The pattern layer (230) may be arranged to form a first angle (A) with the first array (2201) and the second array (2202) of the protective layer (220).

[0083] In one embodiment, referring to FIG. 6b, the pattern layer (230) may be positioned to pass through the vertices of a square formed by the first array (2201) and the second array (2202) of the protective layer (220). The first angle (A) formed by the pattern layer (230) and the first array (2201) and the second array (2202) of the protective layer (220) may be formed at 45 degrees.

[0084] In one embodiment, referring to FIG. 6b, the spacing (L2) of the pattern layer (230) may be formed differently from the spacing (L1) of each of the first array (2201) and the second array (2202) of the protective layer (220). For example, the spacing (L2) of the pattern layer (230) may be formed to be half as narrow as the spacing (L1) of each of the first array (2201) and the second array (2202) of the protective layer (220). The diameter (t2) of the pattern layer (230) may be formed to be 0.05 mm or more and 0.2 mm or less.

[0085] In one embodiment, with reference to FIG. 6b and FIG. 7b, when a pattern layer (230) is placed on the other side (220b) of the protective layer (220) (e.g., the side facing the +z-axis in FIG. 6b), the first array (2201) and the second array (2202) of the protective layer (220) and the pattern layer (230) may not be identifiable on the front (200a) of the rear cover (200) by the combination of the pattern layer (230) and the first array (2201) and the second array (2202) of the protective layer (220). When the pattern layer (230) is positioned at a first angle (A) of 45 degrees for each of the first array (2201) and the second array (2202) of the protective layer (220) on the other side (220b) of the protective layer (220) (e.g., the side facing the +z-axis in FIG. 6b), the first array (2201) and the second array (2202) of the protective layer (220) can be concealed on the front (200a) of the rear cover (200) by the combination of the first array (2201) and the second array (2202) of the protective layer (220) and the pattern layer (230).

[0086] In one embodiment, referring to FIG. 6c, the pattern layer (230) may be positioned to pass through the vertices and corners of a square formed by the first array (2201) and the second array (2202) of the protective layer (220). The first angle (A) formed by the pattern layer (230) and the first array (2201) and the second array (2202) of the protective layer (220) may be formed to be greater than 0 degrees and less than 45 degrees.

[0087] In one embodiment, referring to FIG. 6c, the spacing (L2) of the pattern layer (230) may be formed differently from the spacing (L1) of each of the first array (2201) and the second array (2202) of the protective layer (220). For example, the spacing (L2) of the pattern layer (230) may be formed to be half as narrow as the spacing (L1) of each of the first array (2201) and the second array (2202) of the protective layer (220). For example, the diameter (t2) of the pattern layer (230) may be formed to be 0.05 mm or more and 0.2 mm or less.

[0088] In one embodiment, with reference to FIG. 6c and FIG. 7c, when a pattern layer (230) is placed on the other side (220b) of the protective layer (220) (e.g., the side facing the +z-axis in FIG. 6c), a wave pattern can be identified on the front (200a) of the rear cover (200) by the combination of the first array (2201) and the second array (2202) of the protective layer (220) and the pattern layer (230). When the pattern layer (230) is positioned at a first angle (A) greater than 0 degrees and less than 45 degrees with respect to the first array (2201) and second array (2202) of the protective layer (220) on the other side (220b) of the protective layer (220) (e.g., the side facing the +z-axis in FIG. 6c), a wave pattern can be identified on the front (200a) of the rear cover (200) by the combination of the first array (2201) and second array (2202) of the protective layer (220) and the pattern layer (230). In one embodiment, when the spacing (L2) of the pattern layer (230) is set to half the spacing (L1) of the protective layer (220) and the pattern layer (230) is arranged at a first angle (A) of 10 degrees with respect to the first array (2201) and second array (2202) of the protective layer (220), the spacing (L2) of the pattern layer (230) is set to half the spacing (L1) of the protective layer (220) and the pattern layer (230) is arranged at a first angle (A) of 30 degrees with respect to the first array (2201) and second array (2202) of the protective layer (220) may be wider than when the spacing (L2) of the pattern layer (230) is set to half the spacing (L1) of the protective layer (220) and the pattern layer (230) is arranged at a first angle (A) of 30 degrees with respect to the first array (2201) and second array (2202) of the protective layer (220).

[0089] In one embodiment, with reference to FIG. 6d and FIG. 8a and FIG. 8b to be described later, the pattern layer (230) may include a first pattern (2301) and a second pattern (2302). The first pattern (2301) may be arranged in a direction perpendicular to the second pattern (2302). Each of the first pattern (2301) and the second pattern (2302) may be arranged at substantially constant intervals (L2). The first pattern (2301) may be arranged substantially parallel at intervals of L2. The second pattern (2302) may be arranged substantially parallel at intervals of L2.

[0090] In one embodiment, referring to FIG. 6d, the first pattern (2301) and the second pattern (2302) of the pattern layer (230) may each be arranged to form a first angle (A) with the first array (2201) and the second array (2202) of the protective layer (220).

[0091] In one embodiment, referring to FIG. 6d, the spacing (L2) of each of the first pattern (2301) and the second pattern (2302) of the pattern layer (230) may be formed narrower than the spacing (L1) of each of the first array (2201) and the second array (2202) of the protective layer (220). Each of the first pattern (2301) and the second pattern (2302) of the pattern layer (230) may be arranged to pass through the vertices of the square formed by the first array (2201) and the second array (2202) of the protective layer (220). The first angle (A) formed by each of the first pattern (2301) and the second pattern (2302) of the pattern layer (230) and the first array (2201) and the second array (2202) of the protective layer (220) may be formed at 45 degrees.

[0092] In one embodiment, referring to FIG. 6d, the spacing (L2) of each of the first pattern (2301) and second pattern (2302) of the pattern layer (230) may be formed differently from the spacing (L1) of each of the first array (2201) and second array (2202) of the protective layer (220). For example, the spacing (L2) of each of the first pattern (2301) and second pattern (2302) of the pattern layer (230) may be formed to be half as narrow as the spacing (L1) of each of the first array (2201) and second array (2202) of the protective layer (220). The diameter (t2) of each of the first pattern (2301) and second pattern (2302) of the pattern layer (230) may be formed to be about 0.05 mm or more and 0.2 mm or less.

[0093] In one embodiment, with reference to FIG. 6d and FIG. 7b, when a pattern layer (230) is placed on the other side (220b) of the protective layer (220) (e.g., the side facing the +z-axis in FIG. 6d), the first array (2201) and the second array (2202) of the protective layer (220) and the first pattern (2301) and the first pattern (2302) of the pattern layer (230) may not be identifiable on the front (200a) of the rear cover (200) by a combination of the first array (2201) and the second array (2202) of the protective layer (220) and the first pattern (2301) and the first pattern (2302) of the pattern layer (230). When the first pattern (2301) and second pattern (2302) of the pattern layer (230) are arranged at a first angle (A) of 45 degrees for each of the first array (2201) and second array (2202) of the protective layer (220) on the other side (220b) of the protective layer (220) (e.g., the side facing the +z-axis in FIG. 6d), the first array (2201) and second array (2202) of the protective layer (220) and the first pattern (2301) and second pattern (2302) of the pattern layer (230) can be concealed on the front (200a) of the rear cover (200) by a combination of the first array (2201) and second array (2202) of the protective layer (220) and the first pattern (2301) and second pattern (2302) of the pattern layer (230).

[0094] FIG. 8a is a plan view according to various embodiments of the present disclosure in which the spacing (L2) of the pattern layer (230) is twice as large as the spacing (L1) of the protective layer (220). FIG. 8b is a plan view according to various embodiments of the present disclosure in which the spacing (L2) of the pattern layer (230) is three times larger than the spacing (L1) of the protective layer (220). FIG. 9 is an enlarged view of a rear cover (200) in which the protective layer (220) and the pattern layer (230) are combined according to FIG. 8a and / or FIG. 8b, according to various embodiments of the present disclosure.

[0095] At least one of the components of the protective layer (220) and pattern layer (230) of FIGS. 8a, 8b, and 9 may be identical or similar to at least one of the components of the protective layer (220) and pattern layer (230) of FIGS. 6a, 6b, 6c, 6d, 7a, 7b, and 7c, and redundant descriptions are omitted below.

[0096] In one embodiment, referring to FIGS. 8a and 8b, the first array (2201) and the second array (2202) of the protective layer (220) may each be arranged at substantially constant intervals (L1), and the first pattern (2301) and the second pattern (2302) of the pattern layer (230) may each be arranged at substantially constant intervals (L2). The first array (2201) of the protective layer (220) and the first pattern (2301) of the pattern layer (230) may be arranged substantially parallel to each other in the x-axis direction of FIG. 8a. The second array (2202) of the protective layer (220) and the second pattern (2302) of the pattern layer (230) may be arranged substantially parallel to each other in the y-axis direction of FIG. 8a. The first array (2201) of the protective layer (220) and the first pattern (2301) of the pattern layer (230) can be arranged perpendicular to the second array (2202) of the protective layer (220) and the second array (2302) of the pattern layer (230) (e.g., the x-axis direction of FIG. 8a).

[0097] In one embodiment, referring to FIGS. 8a and 8b, a first pattern (2301) of the pattern layer (230) may be arranged to overlap with a first array (2201) of the protective layer (220). A second pattern (2302) of the pattern layer (230) may be arranged to be staggered with respect to a second array (2202) of the protective layer (220). For example, a second pattern (2302) of the pattern layer (230) may be arranged to pass through the middle of the corners of a square formed by the first array (2201) and the second array (2202) of the protective layer (220). In some embodiments, the first pattern (2301) and the second pattern (2302) of the pattern layer (230) may be arranged to be staggered with respect to the first array (2201) and the second array (2202) of the protective layer (220).

[0098] In one embodiment, referring to FIG. 8a, the spacing (L2) of each of the first pattern (2301) and the second pattern (2302) of the pattern layer (230) may be formed differently from the spacing (L1) of each of the first array (2201) and the second array (2202) of the protective layer (220). For example, the spacing (L2) of each of the first pattern (2301) and the second pattern (2302) of the pattern layer (230) may be formed to be twice as wide as the spacing (L1) of each of the first array (2201) and the second array (2202) of the protective layer (220). The diameter (t2) of each of the first pattern (2301) and the second pattern (2302) of the pattern layer (230) may be formed to be about 0.05 mm or more and 0.2 mm or less.

[0099] In one embodiment, referring to FIG. 8b, the spacing (L2) of each of the first pattern (2301) and second pattern (2302) of the pattern layer (230) may be formed to be three times wider than the spacing (L1) of each of the first array (2201) and second array (2202) of the protective layer (220).

[0100] In one embodiment, with reference to FIG. 8a, FIG. 8b and FIG. 9, when a pattern layer (230) is placed on the other side (220b) of the protective layer (220) (e.g., the side facing the +z-axis in FIG. 8a), a three-dimensional effect can be identified on the front (200a) of the rear cover (200) by a combination of the first array (2201) and the second array (2202) of the protective layer (220) and the first pattern (2301) and the first pattern (2302) of the pattern layer (230). When the first pattern (2301) of the pattern layer (230) is arranged to overlap with the first array (2201) of the protective layer (220) and the second pattern (2302) of the pattern layer (230) is arranged to be staggered with the second array (2202) of the protective layer (220), a three-dimensional effect can be identified on the front (200a) of the rear cover (200) by the combination of the first array (2201) and the second array (2202) of the protective layer (220) and the first pattern (2301) and the first pattern (2302) of the pattern layer (230).

[0101] In one embodiment, the spacing (L2) of each of the first pattern (2301) and second pattern (2302) of the pattern layer (230) is set differently from the spacing (L1) of each of the first array (2201) and second array (2202) of the protective layer (220), thereby allowing the three-dimensional effect identifiable on the front (200a) of the rear cover (200) to be controlled. For example, if the spacing (L2) of each of the first pattern (2301) and second pattern (2302) of the pattern layer (230) is set to be three times wider than the spacing (L1) of each of the first array (2201) and second array (2202) of the protective layer (220), a greater three-dimensional effect can be identified on the front (200a) of the rear cover (200) than if the spacing (L2) of each of the first pattern (2301) and second pattern (2302) of the pattern layer (230) is set to be two times wider than the spacing (L1) of each of the first array (2201) and second array (2202) of the protective layer (220).

[0102] A rear cover (111, 200) of an electronic device (100) according to one embodiment of the present disclosure may include a protective layer (220) comprising fiber reinforced plastic (FRP).

[0103] In one embodiment, the rear cover of the electronic device may include a pattern layer (230) disposed on the other side (220b) of the protective layer.

[0104] In one embodiment, the protective layer may include a first array (2201) and a second array (2202) arranged in a direction perpendicular to the first array.

[0105] In one embodiment, the pattern layer may be arranged to form a first angle (A) with the first array and the second array.

[0106] In one embodiment, a design can be implemented on the rear cover by combining the protective layer and the pattern layer.

[0107] In one embodiment, the first angle may be configured to be greater than 0 degrees and less than or equal to 45 degrees.

[0108] In one embodiment, the first array and the second array may be concealed on the front (200a) of the rear cover according to the first angle.

[0109] In one embodiment, a wave pattern can be identified on the front surface (200a) of the rear cover according to the first angle.

[0110] In one embodiment, the pattern layer may include a first pattern (2301) arranged to form a first angle with the first array and the second array, and a second pattern (2302) arranged in a direction perpendicular to the first pattern and arranged to form a first angle with the first array and the second array.

[0111] In one embodiment, the first angle may be configured to be greater than 0 degrees and less than or equal to 45 degrees.

[0112] In one embodiment, the spacing (L2) of the pattern layer may be formed to be narrower than the spacing (L1) of the protective layer.

[0113] In one embodiment, the pattern layer may include a first pattern (2301) arranged in a direction substantially parallel to the first array, and a second pattern (2302) arranged in a direction substantially parallel to the second array.

[0114] In one embodiment, the spacing (L2) of the pattern layer may be formed to be larger than the spacing (L1) of the protective layer.

[0115] In one embodiment, the three-dimensionality of the front surface (200a) of the rear cover can be identified according to the difference between the spacing (L2) of the pattern layer and the spacing (L1) of the protective layer.

[0116] In one embodiment, the rear cover may further include a coating layer (210) on one side (220a) which is opposite to the other side of the protective layer.

[0117] In one embodiment, the rear cover may further include a color layer (240) disposed on the pattern layer.

[0118] In one embodiment, the rear cover (111, 200) of the electronic device (100) may include a first protective layer (221) comprising glass fiber reinforced plastic (GFRP).

[0119] In one embodiment, the rear cover of the electronic device may include a pattern layer (230) disposed on the other side (221b) of the first protective layer.

[0120] In one embodiment, the rear cover of the electronic device may include a second protective layer (222) disposed on the pattern layer and comprising glass fiber reinforced plastic.

[0121] In one embodiment, the first protective layer may include a first-1 array and a second-1 array arranged in a direction perpendicular to the first-1 array.

[0122] In one embodiment, the second protective layer may include a first-2 array and a second-2 array arranged in a direction perpendicular to the first-2 array.

[0123] In one embodiment, the pattern layer may be arranged to form a first angle with the first-1 array and the second-1 array.

[0124] In one embodiment, the pattern layer may be arranged to form a second angle with the first-2 array and the second-2 array.

[0125] In one embodiment, a design can be implemented on the rear cover by combining the first protective layer, the pattern layer, and the second protective layer.

[0126] In one embodiment, the first angle or the second angle may be configured to be greater than 0 degrees and less than or equal to 45 degrees.

[0127] In one embodiment, the pattern layer may include a first pattern arranged to form a first angle with the first-1 array and the second-1 array, and to form a second angle with the first-2 array and the second-2 array, and a second pattern arranged in a direction perpendicular to the first pattern, and to form a first angle with the first-1 array and the second-1 array, and to form a second angle with the first-2 array and the second-2 array.

[0128] In one embodiment, the first angle or the second angle may be configured to be greater than 0 degrees and less than or equal to 45 degrees.

[0129] In one embodiment, the spacing of the pattern layer may be formed to be smaller than the spacing of the first protective layer and / or the spacing of the second protective layer.

[0130] In one embodiment, the pattern layer may include a first pattern arranged in a direction substantially parallel to the first-1 array and the first-2 array, and a second pattern arranged in a direction substantially parallel to the second-1 array and the second-2 array.

[0131] In one embodiment, the spacing of the pattern layer may be formed to be larger than the spacing of the first protective layer and / or the spacing of the second protective layer.

[0132] In one embodiment, the rear cover may further include a coating layer (210) on one side (221a) which is opposite to the other side of the first protective layer.

[0133] In one embodiment, the rear cover may further include a color layer (240) disposed on the second protective layer.

[0134] 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 (e.g., a laptop), 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.

[0135] The embodiments of the present disclosure disclosed in this specification and drawings are merely specific examples provided to facilitate the explanation of the technical content according to the embodiments of the present disclosure and to aid in understanding the embodiments of the present disclosure, and are not intended to limit the scope of the embodiments of the present disclosure. Accordingly, the scope of the various embodiments of the present disclosure should be interpreted to include all modifications or variations derived based on the technical concept of the various embodiments of the present disclosure, in addition to the embodiments disclosed herein.

Claims

1. In the rear cover (111, 200) of an electronic device (100), A protective layer (220) comprising fiber reinforced plastic (FRP), and It includes a pattern layer (230) disposed on the other side (220b) of the above protective layer, and The above protective layer is, It includes a first array (2201) and a second array (2202) arranged in a direction perpendicular to the first array, and The above pattern layer is, The above first array and the above second array are arranged to form a first angle (A), and A rear cover of an electronic device that implements a design on the rear cover by combining the protective layer and the pattern layer.

2. In Paragraph 1, The rear cover of an electronic device, wherein the first angle is configured to be greater than 0 degrees and less than or equal to 45 degrees.

3. In Paragraph 1, A rear cover of an electronic device in which the first array and the second array are concealed on the front (200a) of the rear cover according to the first angle.

4. In Paragraph 1, A rear cover of an electronic device in which a wave pattern is identified on the front (200a) of the rear cover according to the first angle above.

5. In Paragraph 1, The above pattern layer is, A first pattern (2301) arranged to form the first array and the second array and the first angle, and A rear cover of an electronic device comprising a second pattern (2302) arranged in a direction perpendicular to the first pattern and arranged to form the first angle with the first array and the second array.

6. In Paragraph 5, The rear cover of an electronic device in which the spacing (L2) of the above pattern layer is narrower than the spacing (L1) of the above protective layer.

7. In Paragraph 1, The above pattern layer is, A first pattern (2301) arranged in a direction substantially parallel to the first arrangement, and A rear cover of an electronic device comprising a second pattern (2302) arranged in a direction substantially parallel to the second array.

8. In Paragraph 7, The rear cover of an electronic device in which the spacing (L2) of the pattern layer is larger than the spacing (L1) of the protective layer.

9. In Paragraph 7, A rear cover of an electronic device in which the three-dimensionality of the front surface (200a) of the rear cover is identified according to the difference between the spacing (L2) of the pattern layer and the spacing (L1) of the protective layer.

10. In Paragraph 1, The above rear cover is, A rear cover of an electronic device further comprising a coating layer (210) on one side (220a) which is the opposite side of the protective layer.

11. In Paragraph 1, The above rear cover is, A rear cover of an electronic device further comprising a color layer (240) disposed on the pattern layer.

12. In the rear cover (111, 200) of the electronic device (100), A first protective layer (221) comprising glass fiber reinforced plastic (GFRP), A pattern layer (230) disposed on the other side (221b) of the first protective layer, and It includes a second protective layer (222) disposed on the above pattern layer and comprising glass fiber reinforced plastic, and The above first protective layer is, It includes a first-1 array and a second-1 array arranged in a direction perpendicular to the first-1 array, and The above second protective layer is, It includes a first-2 array and a second-2 array arranged in a direction perpendicular to the first-2 array, and The above pattern layer is, Arranged to form a first angle with the above 1-1 array and the above 2-1 array, and The above first-2 array and the above second-2 array are arranged to form a second angle, and A rear cover of an electronic device that implements a design on the rear cover by combining the first protective layer, the pattern layer, and the second protective layer.

13. In Paragraph 12, A rear cover of an electronic device in which the first angle or the second angle is configured to be greater than 0 degrees and less than or equal to 45 degrees.

14. In Paragraph 12, The above pattern layer is, A first pattern arranged to form the first angle with the first-1 array and the second-1 array, and to form the second angle with the first-2 array and the second-2 array, and A rear cover of an electronic device comprising a second pattern arranged in a direction perpendicular to the first pattern, forming a first angle with the first-1 array and the second-1 array, and forming a second angle with the first-2 array and the second-2 array.

15. In Paragraph 12, The above rear cover is, A coating layer (210) on one side (221a) opposite to the other side of the first protective layer; and A rear cover of an electronic device further comprising a color layer (240) disposed on the second protective layer.

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