阅读说明：本技术 包括后板的电子装置及其制造方法 (Electronic device including rear plate and method of manufacturing the same ) 是由 文荣敏 金贤范 裵栽贤 于 2020-03-09 设计创作，主要内容包括：根据本公开的各种实施例的覆盖电子装置的后表面的后板可以包括：玻璃板,包括图案区域,该图案区域包括在其至少一部分中具有特定形状的图案；印刷层,布置在玻璃板的第一表面上；堆叠在印刷层上的屏蔽层；和涂层,布置在玻璃板的面对第一表面的第二表面上。玻璃板的图案区域可以包括彼此间隔开的多条加工线。其他实施例也是可能的。(A rear plate covering a rear surface of an electronic device according to various embodiments of the present disclosure may include: a glass plate including a pattern region including a pattern having a specific shape in at least a portion thereof; a printing layer disposed on the first surface of the glass plate; a shielding layer stacked on the printing layer; and a coating disposed on a second surface of the glass sheet facing the first surface. The patterned area of the glass sheet may include a plurality of processing lines spaced apart from one another. Other embodiments are also possible.)

1. A rear plate covering a rear surface of an electronic device, comprising:

a glass plate including a pattern region in at least a partial region, the pattern region including a pattern having a prescribed shape;

the printing layer is arranged on the first surface of the glass plate;

a shielding layer stacked with the printing layer; and

a coating disposed on a second surface of the glass sheet opposite the first surface,

wherein the pattern area of the glass sheet comprises a plurality of processing lines spaced apart from each other.

2. The rear plate as claimed in claim 1, wherein the plurality of processing lines are arranged in a direction substantially perpendicular to one surface on which the pattern having the designated shape is formed.

3. The backplate of claim 1, wherein the pattern region is formed on at least one of the first surface or the second surface.

4. The rear plate as claimed in claim 3, wherein the pattern having the designated shape formed in the pattern region includes a shape of a single height.

5. The rear plate of claim 3, wherein the pattern having the designated shape formed in the pattern region is formed as a plurality of steps or has a three-dimensional (3D) shape including a slope.

6. The rear plate as claimed in claim 5, wherein the pattern having the designated shape formed in the pattern region includes a curved surface.

7. The backplate of claim 1, wherein the glass plate comprises a flat region and a curved region formed along two opposing ends of the flat region, and

wherein the pattern region is formed in at least one of the flat region or the curved region.

8. The backplate of claim 7, wherein the structure comprising the flat and curved regions and the pattern region of the glass plate is shaped by thermoforming.

9. The rear plate of claim 3, wherein the pattern region formed on the first surface includes a structure recessed to an inside of the glass plate or a structure protruding to an outside of the glass plate.

10. The rear plate of claim 3, wherein the pattern region formed on the second surface includes a structure recessed to an inside of the glass plate or a structure protruding to an outside of the glass plate.

11. The backplate of claim 1, further comprising:

a deposition layer disposed between the glass plate and the printing layer; and

a transparent member layer disposed between the glass plate and the deposition layer,

wherein at least a part of the transparent member layer is provided as an optically transparent adhesive layer to adhere the glass plate and the deposition layer.

12. The rear plate of claim 1, further comprising a transparent member layer disposed between the glass plate and the print layer,

wherein at least a portion of the transparent member layer is provided as an optically transparent adhesive layer and is directly coupled to the printed layer, and wherein the printed layer appears to include color by color printing.

13. An electronic device, comprising:

a housing including a front plate facing a first direction and a rear plate facing a second direction opposite the front plate, at least a portion of the front plate including a transparent region;

a battery disposed inside the case; and

a display disposed in the housing and including a screen area exposed through the front cover, wherein the rear plate includes:

a glass plate including a pattern region in at least a partial region, the pattern region including a pattern having a prescribed shape;

a printed layer disposed on the glass plate in the first direction;

a shielding layer stacked with the printing layer; and

a coating disposed on the glass sheet in the second direction opposite the first direction, wherein the pattern area of the glass sheet comprises a plurality of processing lines spaced apart from one another.

14. The electronic device according to claim 13, wherein virtual lines formed along respective centers of the plurality of processing lines are arranged in parallel with each other, and

wherein each of the plurality of processing lines has an upper end and a lower end having areas different from each other.

15. The electronic device of claim 13, wherein the glass plate comprises a flat region and a curved region formed along two opposite ends of the flat region, wherein the pattern region is formed in at least one of the flat region or the curved region,

wherein the electronic device further comprises a transparent member layer disposed between the glass sheet and the printed layer, wherein at least a portion of the transparent member layer is provided as an optically transparent adhesive layer and is directly coupled to the printed layer, and wherein the printed layer is rendered to include color by color printing.

Technical Field

Various embodiments of the present disclosure relate to a rear plate, an electronic device including the rear plate, and a method for manufacturing the rear plate.

Background

The term "electronic device" may refer to a device that performs a specific function according to a program with which it is equipped, such as a home appliance, an electronic scheduler, a portable multimedia player, a mobile communication terminal, a tablet PC, a video/sound device, a desktop PC or laptop computer, car navigation, and the like. For example, the electronic device may output the stored information as voice or an image. As electronic devices are highly integrated and high-speed, high-capacity wireless communication becomes widespread, electronic devices such as mobile communication terminals are recently equipped with various functions. For example, electronic devices have integrated functions including entertainment functions such as playing video games, multimedia functions such as playing back music/video, communication and security functions for mobile banking, and scheduling or electronic wallet functions.

The new trend to emphasize thinness and compactness of smart phones, notebook computers, or other electronic devices has led to attempts to employ elegant glass components as exterior materials for electronic devices. In addition, various surface treatment techniques are being developed to give functional effects in addition to design effects.

Disclosure of Invention

Technical problem

As portability of electronic devices such as smart phones or notebook computers is emphasized, exterior materials require high strength, and design demands for expressing beauty through various patterns are increasing. Generally, as an exterior material (e.g., a glass cover) of an electronic device, a cover including a curved surface, which is formed by thermoforming to provide better appearance and grip, is used. A pattern is printed on an area of the cover including the curved surface, or a printed film (e.g., a decorative film) having a pattern is laminated, so as to increase the value of the product.

However, the method of forming a pattern by an additional process after thermoforming may be limited in terms of visual and sensory design differences. In addition, the additional process consumes materials and time, creating an obstacle to efficient production.

According to various embodiments of the present disclosure, in a rear plate and an electronic device having the same, a cover having a depth and high requirements in design may be provided by forming a pattern during thermoforming.

According to various embodiments of the present disclosure, in a rear plate and an electronic device having the same, by performing curved surface formation and patterning during a thermoforming process, costs due to materials and time may be saved.

Technical solution

According to various embodiments of the present disclosure, a rear plate covering a rear surface of an electronic device may include: a glass plate including a pattern region in at least a partial region, the pattern region including a pattern having a prescribed shape; a printed layer disposed on the first surface of the glass sheet; a shielding layer stacked with the printing layer; and a coating disposed on a second surface of the glass sheet opposite the first surface. The pattern area of the glass sheet may include a plurality of processing lines spaced apart from each other.

According to various embodiments of the present disclosure, an electronic device may include: a housing including a front plate facing a first direction and a rear plate facing a second direction opposite the front plate, at least a portion of the front plate including a transparent region; a battery disposed inside the case; and a display disposed in the housing and including a screen area exposed through the front cover. The rear plate may include: a glass plate including a pattern region in at least a partial region, the pattern region including a pattern having a prescribed shape; a printed layer disposed on the glass sheet in a first direction; a shielding layer stacked with the printing layer; and a coating disposed on the glass sheet in a second direction opposite the first direction. The pattern area of the glass sheet may include a plurality of processing lines spaced apart from each other.

According to various embodiments of the present disclosure, a method for manufacturing a back plate may include: a step of inserting a glass sheet into the mold structure and being positioned in the region of the lower core structure of the mold structure; a step of preheating the glass sheet at a high temperature and descending the upper core structure of the mold structure toward the lower core structure; a step of shape processing portions of the upper core structure and the lower core structure pressing the glass sheet to form a curved surface; and a cooling step.

Advantageous effects

According to various embodiments of the present disclosure, in an electronic device, an exterior material having an aesthetic design may be provided.

According to various embodiments of the present disclosure, in a rear plate and an electronic device including the same, a processing line may be formed in a pattern by forming a rear plate pattern during thermoforming. Therefore, a cover enhanced in design can be provided.

According to various embodiments of the present disclosure, in a rear plate and an electronic device including the same, an additional patterning process is not required, thereby saving costs due to materials and time while minimizing defects that may occur after assembly.

Drawings

FIG. 1 is a block diagram illustrating an electronic device in a network environment according to various embodiments of the present disclosure;

FIG. 2 is a front perspective view illustrating an electronic device according to various embodiments of the present disclosure;

FIG. 3 is a rear perspective view illustrating an electronic device according to various embodiments of the present disclosure;

FIG. 4 is an exploded perspective view illustrating an electronic device according to various embodiments of the present disclosure;

FIG. 5 is a cross-sectional view taken along line A-A' of the electronic device of FIG. 3, according to various embodiments of the present disclosure;

FIG. 6 is an enlarged cross-sectional view illustrating region S of FIG. 5, according to an embodiment of the present disclosure;

FIG. 7 is an enlarged cross-sectional view illustrating a region of FIG. 5 according to another embodiment of the present disclosure;

FIG. 8 is an enlarged cross-sectional view illustrating a region of FIG. 5 according to another embodiment of the present disclosure;

fig. 9a is an enlarged cross-sectional view illustrating a pattern area of a rear plate of an electronic device according to various embodiments of the present disclosure; fig. 9b is an enlarged cross-sectional view illustrating a pattern region obtained by treating a rear plate using a laser according to an embodiment of the present disclosure;

10a and 10b are flow diagrams illustrating a process for manufacturing a back plate of an electronic device according to an embodiment of the present disclosure;

fig. 11 is a flowchart illustrating a process for manufacturing a rear plate of an electronic device according to another embodiment of the present disclosure;

fig. 12 is a flowchart illustrating a process for manufacturing a rear plate of an electronic device according to another embodiment of the present disclosure;

fig. 13 is a view illustrating a mold structure for manufacturing a rear plate of an electronic device according to various embodiments of the present disclosure;

fig. 14 is a view illustrating a mold structure for manufacturing a rear plate of an electronic device according to various embodiments of the present disclosure;

FIG. 15 is a flow diagram illustrating a post thermoforming process according to various embodiments of the present disclosure; and

fig. 16 is a flow chart illustrating a process for machining a line including a bevel according to various embodiments of the present disclosure.

Detailed Description

Fig. 1 is a block diagram illustrating an electronic device 101 in a network environment 100, in accordance with various embodiments. Referring to fig. 1, an electronic device 101 in a network environment 100 may communicate with an electronic device 102 via a first network 198 (e.g., a short-range wireless communication network) or with an electronic device 104 or a server 108 via a second network 199 (e.g., a long-range wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 via the server 108. According to an embodiment, the electronic device 101 may include a processor 120, a memory 130, an input device 150, a sound output device 155, a display device 160, an audio module 170, a sensor module 176, an interface 177, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a Subscriber Identity Module (SIM)196, or an antenna module 197. In some embodiments, at least one of the components (e.g., display device 160 or camera module 180) may be omitted from electronic device 101, or one or more other components may be added to electronic device 101. In some embodiments, some of the components may be implemented as a single integrated circuit. For example, the sensor module 176 (e.g., a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented to be embedded in the display device 160 (e.g., a display).

The processor 120 may run, for example, software (e.g., the program 140) to control at least one other component (e.g., a hardware component or a software component) of the electronic device 101 connected to the processor 120, and may perform various data processing or calculations. According to one embodiment, as at least part of the data processing or calculation, processor 120 may load commands or data received from another component (e.g., sensor module 176 or communication module 190) into 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 an embodiment, the processor 120 may include a main processor 121 (e.g., a Central Processing Unit (CPU) or an Application Processor (AP)) and an auxiliary processor 123 (e.g., a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a sensor hub processor, or a Communication Processor (CP)) that is operatively independent of or in conjunction with the main processor 121. Additionally or alternatively, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or be adapted specifically for a specified function. The auxiliary processor 123 may be implemented separately from the main processor 121 or as part of the main processor 121.

The auxiliary processor 123 may control at least some of the functions or states associated with at least one of the components of the electronic device 101 (e.g., the display device 160, the sensor module 176, or the communication module 190) when the main processor 121 is in an inactive (e.g., sleep) state, or the auxiliary processor 123 may control at least some of the functions or states associated with at least one of the components of the electronic device 101 (e.g., the display device 160, the sensor module 176, or the communication module 190) with the main processor 121 when the main processor 121 is in an active state (e.g., running an application). According to an embodiment, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera module 180 or the communication module 190) that is functionally related to the auxiliary processor 123.

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

The program 140 may be stored in the memory 130 as software, and the program 140 may include, for example, an Operating System (OS)142, middleware 144, or an application 146.

The input device 150 may receive commands or data from outside of the electronic device 101 (e.g., a user) to be used by other components of the electronic device 101, such as the processor 120. The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (e.g., a stylus pen).

The sound output device 155 may output a sound signal to the outside of the electronic device 101. The sound output device 155 may include, for example, a speaker or a receiver. The speaker may be used for general purposes such as playing multimedia or playing a record and the receiver may be used for incoming calls. Depending on the embodiment, the receiver may be implemented separate from the speaker, or as part of the speaker.

Display device 160 may visually provide information to the exterior of electronic device 101 (e.g., a user). The display device 160 may include, for example, a display, a holographic device, or a projector, and control circuitry for controlling a respective one of the display, holographic device, and projector. According to embodiments, the display device 160 may include touch circuitry adapted to detect a touch or sensor circuitry (e.g., a pressure sensor) adapted to measure the intensity of a force caused by a touch.

The audio module 170 may convert sound into an electrical signal and vice versa. According to embodiments, the audio module 170 may obtain sound via the input device 150 or output sound via the sound output device 155 or a headset of an external electronic device (e.g., the electronic device 102) directly (e.g., wired) connected or wirelessly connected with the electronic device 101.

The sensor module 176 may detect an operating state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., state of a user) external to the electronic device 101 and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyroscope sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an Infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more particular protocols to be used to directly (e.g., wired) or wirelessly connect the electronic device 101 with an external electronic device (e.g., the electronic device 102). According to an embodiment, the interface 177 may include, for example, a high-definition multimedia interface (HDMI), a Universal Serial Bus (USB) interface, a Secure Digital (SD) card interface, or an audio interface.

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

The haptic module 179 may convert the electrical signal into a mechanical stimulus (e.g., vibration or motion) or an electrical stimulus that may be recognized by the user via his sense of touch or kinesthesia. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

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

The power management module 188 may manage power to the electronic device 101. According to one embodiment, the power management module 188 may be implemented as at least part of a Power Management Integrated Circuit (PMIC), for example.

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

The communication module 190 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., the electronic device 102, the electronic device 104, or the server 108), and performing communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently of the processor 120 (e.g., an Application Processor (AP)) and supporting direct (e.g., wired) communication or wireless communication. According to an embodiment, the communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a Global Navigation Satellite System (GNSS) communication module) or a wired communication module 194 (e.g., a Local Area Network (LAN) communication module or a Power Line Communication (PLC) module). A respective one of these communication modules may communicate with external electronic devices via a first network 198 (e.g., a short-range communication network such as bluetooth, wireless fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a cellular network, the internet, or a computer network (e.g., a LAN or Wide Area Network (WAN))). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multiple components (e.g., multiple chips) that are separate from one another. The wireless communication module 192 may identify and authenticate the electronic device 101 in a communication network, such as the first network 198 or the second network 199, using subscriber information, such as an International Mobile Subscriber Identity (IMSI), stored in the subscriber identity module 196.

The antenna module 197 may transmit or receive signals or power to or from the outside (e.g., an external electronic device). According to an embodiment, the antenna module may include one antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate, for example, a Printed Circuit Board (PCB). According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication scheme used in a communication network, such as the first network 198 or the second network 199, may be selected from the plurality of antennas by, for example, the communication module 190. Signals or power may then be transmitted or received between the communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, other components besides the radiator, such as a Radio Frequency Integrated Circuit (RFIC), may be further formed as part of the antenna module 197.

At least some of the above components may be interconnected and communicate signals (e.g., commands or data) communicatively between them via an inter-peripheral communication scheme (e.g., bus, General Purpose Input Output (GPIO), Serial Peripheral Interface (SPI), or Mobile Industry Processor Interface (MIPI)).

According to an embodiment, commands or data may be sent or received between the electronic device 101 and the external electronic device 104 via the server 108 connected with the second network 199. Each of the electronic device 102 and the electronic device 104 may be the same type of device as the electronic device 101 or a different type of device from the electronic device 101. According to embodiments, all or some of the operations to be performed at the electronic device 101 may be performed at one or more of the external electronic device 102, the external electronic device 104, or the server 108. For example, if the electronic device 101 should automatically perform a function or service or should perform a function or service in response to a request from a user or another device, the electronic device 101 may request the one or more external electronic devices to perform at least part of the function or service instead of or in addition to performing the function or service. The one or more external electronic devices that received the request may perform the requested at least part of the functions or services or perform another function or another service related to the request and transmit the result of the execution to the electronic device 101. The electronic device 101 may provide the result as at least a partial reply to the request with or without further processing of the result. To this end, for example, cloud computing technology, distributed computing technology, or client-server computing technology may be used.

The electronic device according to various embodiments may be one of various types of electronic devices. The electronic device may comprise, 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 home appliance. According to the embodiments of the present disclosure, the electronic devices are not limited to those described above.

It should be understood that the various embodiments of the present disclosure and the terms used therein are not intended to limit the technical features set forth herein to specific embodiments, but include various changes, equivalents, or alternatives to the respective embodiments. For the description of the figures, like reference numerals may be used to refer to like or related elements. It will be understood that a noun in the singular corresponding to a term may include one or more things unless the relevant context clearly dictates otherwise. As used herein, 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 all possible combinations of the items listed together with the respective one of the plurality of phrases. As used herein, terms such as "1 st" and "2 nd" or "first" and "second" may be used to distinguish one element from another element simply and not to limit the elements in other respects (e.g., importance or order). It will be understood that, if an element (e.g., a first element) is referred to as being "coupled to", "connected to" or "connected to" another element (e.g., a second element), it can be directly (e.g., wiredly) connected to, wirelessly connected to, or connected to the other element via a third element, when the term "operatively" or "communicatively" is used or not.

As used herein, the term "module" may include units implemented in hardware, software, or firmware, and may be used interchangeably with other terms (e.g., "logic," "logic block," "portion," or "circuitry"). A module may be a single integrated component adapted to perform one or more functions or a minimal unit or portion of the single integrated component. For example, according to an embodiment, the modules may be implemented in the form of Application Specific Integrated Circuits (ASICs).

The various embodiments set forth herein 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) that is readable by a machine (e.g., electronic device 101). For example, under control of a processor, a processor (e.g., processor 120) of the machine (e.g., electronic device 101) may invoke and execute at least one of the one or more instructions stored in the storage medium, with or without the use of one or more other components. This enables the machine to be operable to perform at least one function in accordance with the invoked at least one instruction. The one or more instructions may include code generated by a compiler or code capable of being executed by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Where the term "non-transitory" simply means that the storage medium is a tangible device and does not include a signal (e.g., an electromagnetic wave), the term does not distinguish between data being semi-permanently stored in the storage medium and data being temporarily stored in the storage medium.

According to embodiments, methods according to various embodiments of the present disclosure may be included and provided in a computer program product. The computer program product may be used to conduct a transaction between a seller and a buyer as an article of commerce. The meter may be distributed in the form of a machine-readable storage medium, such as a compact disc read-only memory (CD-ROM)Computer program product, or alternatively, via an application store (e.g., PlayStore)^TM) The computer program product is published (e.g. downloaded or uploaded) online, or may be distributed (e.g. downloaded or uploaded) directly between two user devices (e.g. smartphones). At least part of the computer program product may be temporarily generated if it is published online, or at least part of the computer program product may be at least temporarily stored in a machine readable storage medium, such as a memory of a manufacturer's server, a server of an application store, or a forwarding server.

According to various embodiments, each of the above components (e.g., modules or programs) may comprise a single entity or multiple entities. According to various embodiments, one or more of the above-described components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., modules or programs) may be integrated into a single component. In such a case, according to various embodiments, the integrated component may still perform one or more functions of each of the plurality of components in the same or similar manner as the corresponding one of the plurality of components performed the one or more functions prior to integration. Operations performed by a module, program, or another component may be performed sequentially, in parallel, repeatedly, or in a heuristic manner, or one or more of the operations may be performed in a different order or omitted, or one or more other operations may be added, in accordance with various embodiments.

According to an embodiment, a partial configuration of an electronic device may have an injection molded surface resulting from injection molding. The injection molded surface formed by the injection molded structure may comprise an exterior surface of the electronic device or may support various electronic components inside the electronic device.

FIG. 2 is a front perspective view illustrating an electronic device according to various embodiments of the present disclosure; FIG. 3 is a rear perspective view illustrating an electronic device according to various embodiments of the present disclosure;

referring to fig. 2 and 3, according to an embodiment, the electronic device 101 may include a housing 310, the housing 310 having a first (or front) surface 310A, a second (or rear) surface 310B, and a side surface 310C surrounding a space between the first surface 310A and the second surface 310B. According to another embodiment (not shown), the housing may represent a structure forming a portion of the first surface 310A, the second surface 310B, and the side surface 310C of fig. 2. According to an embodiment, at least a portion of the first surface 310A may have a substantially transparent front sheet 302 (e.g., a glass sheet or a polymer sheet including various coatings). The second surface 310B may be formed from a substantially opaque rear panel 380311. The rear panel 380311 can be formed, for example, from laminated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two thereof. Side surface 310C may be formed from side bezel structure (or "side member") 318 coupled to front panel 302 and back panel 380311 and include metal and/or polymer. According to an embodiment, the back panel 380311 and the side rail panel 318 can be integrally formed together and comprise the same material (e.g., metal, such as aluminum).

In the illustrated embodiment, the front panel 302 may include two first regions 310D on two long sides of the front panel 302 that extend seamlessly and curvedly from the first surface 310A to the back panel 380311. In the illustrated embodiment (referring to fig. 3), the rear panel 380311 can include two second regions 310E that extend seamlessly and curvedly from the second surface 310B to the front panel on both long sides. According to an embodiment, the front panel 302 (or the rear panel 380311) may include only one of the first regions 310 (or the second regions 310E). Alternatively, the first region 310D or the second region 301E may be partially excluded. According to an embodiment, in a side view of the electronic device 101, the side bezel structure 318 may have a first thickness (or width) for sides that do not have the first region 310D or the second region 310E, and the side bezel structure 318 may have a second thickness that is less than the first thickness for sides that have the first region 310D or the second region 310E.

According to an embodiment, the electronic device 101 may include at least one or more of the display 301, the audio modules 303, 307, and 314, the sensor modules 304, 316, and 319, the camera modules 305, 312, and 313, the key input device 317, the light emitting device 306, and the connector holes 308 and 309. According to embodiments, the electronic device 101 may not include at least one of the components (e.g., the key input device 317 or the light emitting device 306), or other components may be added.

According to an embodiment, the display 301 may be exposed through a substantial portion of the front plate 302, for example. According to an embodiment, at least a portion of the display 301 may be exposed through the front plate 302 forming the first surface 310A and the first region 310D of the side surface 310C. According to an embodiment, the edge of the display 301 may be formed to be substantially the same in shape as the adjacent outer edge of the front plate 302. According to an embodiment (not shown), the spacing between the outer edges of the display 301 and the outer edges of the front plate 302 may be kept substantially uniform to give the display 301 a larger exposed area.

According to an embodiment (not shown), the screen display area of the display 301 may have a recess or opening in a portion thereof, and at least one or more of the audio module 314, the sensor module 304, the camera module 305, and the light emitting device 306 may be aligned with the recess or opening. According to an embodiment (not shown), at least one or more of the audio module 314, the sensor module 304, the camera module 305, the fingerprint sensor 316, and the light emitting device 306 may be included on a rear surface of a screen display area of the display 301. According to an embodiment (not shown), the display 301 may be disposed in conjunction with or adjacent to touch detection circuitry, a pressure sensor capable of measuring touch intensity (pressure), and/or a digitizer for detecting a magnetic field type stylus. According to an embodiment, at least a portion of the sensor modules 304 and 519 and/or at least a portion of the key input device 317 may be disposed in the first region 310D and/or the second region 310E.

According to an embodiment, the audio modules 303, 307, and 314 may include a microphone aperture 303 and speaker apertures 307 and 314. The microphone hole 303 may have a microphone inside to obtain external sound. According to an embodiment, there may be a plurality of microphones to be able to detect the direction of the sound. The speaker holes 307 and 314 may include an external speaker hole 307 and a telephone receiver hole 314. According to embodiments, the speaker holes 307 and 314 and the microphone hole 303 may be implemented as a single hole, or the speaker may be positioned without the speaker holes 307 and 314 (e.g., a piezoelectric speaker).

According to an embodiment, the sensor modules 304, 316, and 319 may generate electrical signals or data values corresponding to internal operating states or external environmental states of the electronic device 101. The sensor modules 304, 316, and 319 may include a first sensor module 304 (e.g., a proximity sensor) and/or a second sensor module (not shown) (e.g., a fingerprint sensor) disposed on the first surface 310A of the housing 310 and/or a third sensor module 319 (e.g., a Heart Rate Monitor (HRM) sensor) and/or a fourth sensor module 316 (e.g., a fingerprint sensor) disposed on the second surface 310B of the housing 310. The fingerprint sensor may be disposed on the second surface 310A and the first surface 310B (e.g., the display 301) of the housing 310. The electronic device 101 may further include a sensor module, not shown, such as at least one of a gesture sensor, a gyroscope sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an Infrared (IR) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor 304.

According to an embodiment, the camera modules 305, 312, and 313 may include a first camera device 305 disposed on a first surface 310A of the electronic device 101, and a second camera device 312 and/or a flash 313 disposed on a second surface 310B. The camera modules 305 and 312 may include one or more lenses, image sensors, and/or image signal processors. The flash lamp 313 may include, for example, a Light Emitting Diode (LED) or a xenon lamp. According to an embodiment, two or more lenses (an Infrared (IR) camera, a wide-angle lens, and a telephoto lens) and an image sensor may be disposed on one surface of the electronic device 101.

According to an embodiment, the key input device 317 may be disposed on the side surface 310C of the housing 310. According to embodiments, the electronic device 101 may not include all or some of the key input devices 317 described above, and the key input devices 317 that are not included may be implemented on the display 301 in other forms, such as being soft keys. According to an embodiment, the key input device may include a sensor module 316 disposed on the second surface 310B of the housing 310.

According to an embodiment, the light emitting device 306 may be disposed on, for example, the first surface 310A of the housing 310. The light emitting device 306 may provide information, for example, regarding the status of the electronic device 101 in the form of light. According to an embodiment, the light emitting device 306 may provide a light source that interacts with, for example, the camera module 305. The light emitting device 306 may include, for example, a Light Emitting Device (LED), an Infrared (IR) LED, or a xenon lamp.

According to an embodiment, the connector holes 308 and 309 may include a first connector hole 308 for receiving a connector (e.g., a Universal Serial Bus (USB) connector) for transmitting or receiving power and/or data to or from an external electronic device, and/or a second connector hole (headphone jack) 309 for receiving a connector for transmitting or receiving an audio signal to or from the external electronic device.

Fig. 4 is an exploded perspective view illustrating an electronic device according to various embodiments of the present disclosure.

Referring to fig. 4, an electronic device 101 (e.g., the electronic device 101 of fig. 1-3) may include a side bezel structure 331, a first support member 332 (e.g., a stand), a front plate 320, a display 330, a Printed Circuit Board (PCB)340, a battery 350, a second support member 360 (e.g., a rear case), an antenna 370, and a rear plate 380. According to embodiments, the electronic device 101 may not include at least one of the components (e.g., the first support member 332 or the second support member 360), or other components may be added. At least one of the components of the electronic device 101 may be the same as or similar to at least one of the components of the electronic device 101 of fig. 2 or 3, and the description will not be repeated below.

According to an embodiment, the first support member 332 may be disposed inside the electronic device 101 to be connected with the side frame structure 331 or integrated with the side frame structure 331. The first support member 332 may be formed of, for example, a metal and/or a non-metallic material (e.g., a polymer). The display 330 may be bonded to one surface of the first support member 332, and the printed circuit board 340 may be bonded to the other surface of the first support member 311. The processor, memory, and/or interfaces may be mounted on a printed circuit board 340. The processor may include, for example, one or more of a central processing unit, an application processor, a graphics processing device, image signal processing, a sensor hub processor, or a communications processor.

According to an embodiment, the memory may comprise, for example, volatile or non-volatile memory.

According to an embodiment, the interface may include, for example, a high-definition multimedia interface (HDMI), a Universal Serial Bus (USB) interface, a Secure Digital (SD) card interface, and/or an audio interface. The interface may electrically or physically connect, for example, the electronic device 101 with an external electronic device, and may include a USB connector, an SD/multimedia card (MMC) connector, or an audio connector.

According to an embodiment, the battery 350 may be a device for powering at least one component of the electronic device 101. The battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. At least a portion of battery 350 may be disposed on substantially the same plane as printed circuit board 340. The battery 350 may be integrally or removably disposed within the electronic device 101.

According to an embodiment, the antenna 370 may be disposed between the rear plate 380 and the battery 350. Antenna 370 may include, for example, a Near Field Communication (NFC) antenna, a wireless charging antenna, and/or a Magnetic Secure Transport (MST) antenna. The antenna 370 may perform short-range communication with, for example, an external device, or may wirelessly transmit or receive power required for charging. According to embodiments, the antenna structure may be formed by a portion or combination of the side frame structure 331 and/or the first support member 332.

Fig. 5 is a cross-sectional view taken along line a-a' of the electronic device of fig. 3, according to various embodiments of the present disclosure. Fig. 6 is an enlarged cross-sectional view illustrating a region S of fig. 5 according to an embodiment of the present disclosure.

Referring to fig. 5 and 6, an electronic device (e.g., the electronic device 101 of fig. 1-3) includes a housing 310 for mounting electronic components. Housing 310 may include a front panel 320, a back panel 380, a side frame structure 331, and a brace 332. The side frame structure 331 and the bracket 332 may be integrally formed with each other. The front panel 320, back panel 380, side frame structure 331 and brace 332 of fig. 5 and 6 may be identical, in whole or in part, to the front panel 320, back panel 380, side frame structure 331 and first support member 332 of fig. 4.

According to various embodiments, the rack 332 provides a space for accommodating a plurality of electronic components. The side frame structure 331 may be formed to surround at least a portion of the bracket 332, covering a side surface of the electronic device 101. To cover the internal space in which the plurality of electronic components are housed, the bracket 332 and the side bezel structure 331 may be connected forward to the display (e.g., the display 330 of fig. 3) and the front plate 320, and connected backward to the rear plate 380 of fig. 3.

According to various embodiments, the front plate 320 and/or the rear plate 380 may include a flat portion and a curved portion. For example, the front plate 320 has 1 st-1 st bent portions 320b and 1 st-2 nd bent portions 320c at opposite ends thereof, which extend from the first flat portion 320a disposed in the middle. The 1 st-1 st bent portion 320b and the 1 st-2 nd bent portion 320c may be implemented in shapes corresponding to each other and may seamlessly extend to the rear plate 380. As another example, the rear plate 380 has 2-1 st and 2-2 nd curved portions 380b and 380c at opposite ends thereof, which extend from a second flat portion 380a disposed in the middle. The 2-1 st curved portion 380b and the 2-2 nd curved portion 380c may be implemented in shapes corresponding to each other and may seamlessly extend to the front plate 320.

According to various embodiments, the back plate 380 may comprise a stack of multiple layers. For example, the rear plate 380 may include a printed layer 382 and a shielding layer 383 disposed in the first direction + Z from the glass plate 381. As another example, the coating 384 may be disposed in a second direction (-Z) of the glass plate 381 opposite the first direction (Z).

As another example, the front plate 320 may include a stack of multiple layers. For example, the front plate 320 may include a printed layer and a shielding layer disposed in the second direction-Z from the glass plate. As another example, the coating can be disposed in a first direction (+ Z) of the glass sheet opposite the second direction (-Z). The structure of the front plate 320 having the stack of the plurality of layers may be formed in an inactive area (e.g., BM area), but not in an active area in which a display (e.g., the display 301 of fig. 2 and 3) is disposed. The structure of the rear plate 380 described below may be applied to the structure of the front plate 320 having a stack of a plurality of layers.

According to various embodiments, the glass plate 381 may include a first surface 3811 facing a first direction + Z and a second surface 3812 facing a second direction-Z opposite the first direction + Z. The first surface 3811 and/or the second surface 3812 of the glass plate 381 may include the substrate region 410 and the pattern region 421. For example, at least a partial region of the first surface 3811 includes the non-patterned substrate region 410, and a region of the first surface 3811 other than the substrate region 410 may include the pattern region 421 having the designated first thickness. The pattern region 421 may be formed of a pattern having a designated shape, and may extend inward or from an end of the base region 410. The first thickness may provide a sense of depth of the pattern formed in the pattern region 421. The pattern may be defined as a plurality of repeating figures, patterns or shapes. Various types of patterns may be formed by workers.

According to various embodiments, the pattern of the designated shape formed in the pattern region 421 may be realized by a depression formed in the first surface 3811 of the glass plate 381 (e.g., a shape depressed inward in the glass plate), and may be formed by a relief pattern formed in a mold structure for forming. For example, the relief pattern formed in the pattern portion of the mold structure may form the pattern region 421 of the glass plate 381 into an engraved pattern.

According to various embodiments, a plurality of processing lines 430 may be included in each pattern of a designated shape formed in the pattern region 421. The plurality of processing lines 430 may form a regular or repeating specified line structure. For example, the processing line 430 formed in the pattern region 421 may be formed in a direction (e.g., the first direction + Z or the second direction-Z) perpendicular to a surface where the pattern is formed along the designated virtual line L. As another example, the processing lines 430 may be spaced apart from each other at predetermined intervals. The plurality of processing lines 430 may be patterns formed by thermoforming, and may be features that appear when the processing patterns of the machine processing the thermoforming mold are transferred into the pattern region 421. The plurality of processing lines 430, along with the pattern of the specified shape, may provide an aesthetic design for the glass sheet 381.

According to various embodiments, the substrate region 410 and the pattern region 421 may be simultaneously realized with the formation of the flat region and the curved region of the rear plate 380. For example, the process of pattern transfer (formation) of the glass plate 381 may engrave a designated pattern and form the entire shape of the glass plate 381 while forming a pattern region in the glass plate 381 using a mold structure corresponding to the entire shape of the glass plate 381. Thus, the glass plate 381 can achieve three-dimensional and emotional design. Details of the pattern transfer (forming) process of the glass plate 381 are described below.

According to various embodiments, the printed layer 382 may be disposed on the glass plate 381 along the first direction + Z. The print layer 382 includes at least one layer, and when including a plurality of layers, each layer may be formed of a different material. For example, the background printing layer may be formed of a material using black ink, and may be manufactured through a background printing process. As another example, the color printing layer may be formed of a material including any color, and may be manufactured through a color printing process. The background printed layer may provide a three-dimensional effect to another layer providing color, and the color printed layer may provide color directly to the rear panel 380.

According to an embodiment, at least a partial area of the printed layer 382 may be provided in a shape corresponding to the first surface 3811 of the glass plate 381. For example, when a pattern of a designated shape of the pattern region 421 of the glass plate 381 has a concave structure or a convex structure in the glass plate 381, the outer surface of the printed layer 382 corresponding to the pattern region 421 may be prepared as a convex structure or a concave structure corresponding to a concave or a groove, filling the space formed in the pattern region 421.

According to various embodiments, a transparent member layer 385 may be disposed between the glass plate 381 and the printed layer 382. The transparent member layer 385 may include a dielectric layer, a base film layer, and a primer layer. The base film layer may be formed of a transparent insulating substrate such as glass or a polymer film, and when the substrate is formed of a polymer film, it may include a flexible substrate. The dielectric layer may be disposed in contact with the glass plate 381, and may be prepared by applying, for example, a known composition as an optically transparent adhesive layer, without limitation. For example, the dielectric layer may be formed of an acrylic adhesive. As another example, the dielectric layer may include at least one of silicon, air, foam (foam), film (membrane), Optically Clear Adhesive (OCA), sponge, rubber, ink, and polymer (PC or PET).

According to various embodiments, a deposition layer (not shown) may be disposed between the transparent member layer 385 and the printing layer 382. The deposited layer may be fabricated by a Physical Vapor Deposition (PVD) method such as sputtering. The deposition layer may be formed of at least one or more layers. For example, a deposition layer formed as a single layer may be manufactured to include In oxide and additional additives using an electron beam (E-beam) evaporator. The additional additive may comprise TiO₂、SiO₂Or Al₂O₃At least one of (1). As another example, the deposition layer 270 formed as a multi-layer may alternately deposit two materials having different reflectance by using an electron beam (E-beam) evaporator (e.g., using TiO)₂、SiO₂Or Al₂O₃And In oxide). When the deposition layer is formed by sputtering, a material including, for example, Nb may be deposited₂O₅At least one of ZnS, TiO, SiO, Al, Sn, or Tin.

According to an embodiment of the present disclosure, when the printing layer 382 is provided as a base layer, it may be stacked with a deposition layer, and when provided as a color layer having any color of the printing layer 382, the deposition layer may be optionally removed.

According to various embodiments, the shielding layer 383 may be disposed on the glass plate 381 along the first direction + Z. The shielding layer 383 may be stacked on the printing layer 382 and may include at least one layer. When the shield layer 383 includes a plurality of layers, each layer may be formed of a different material. The shield layer 383 may block light paths directed to the outside or inside of the electronic device 101. For example, the shielding layer 383 may prevent light of the electronic device 101 from leaking or block light provided to the electronic device 101 from the outside. According to an embodiment, the shielding layer 383 may be formed of a material using black ink, and may be manufactured by a light blocking printing process.

According to various embodiments, the coating 384 may be disposed on the glass plate 381 along the second direction-Z. The coating 384 may be formed by integral coating on the second surface 3812 of the glass plate 381. The coating 384 has a thickness smaller than that of the glass plate 381, and is disposed to surround the outer surface of the electronic device 101 to prevent infiltration or contamination of foreign substances.

Fig. 7 is an enlarged cross-sectional view illustrating a region of fig. 5 according to another embodiment of the present disclosure.

Referring to fig. 7, an electronic device (e.g., the electronic device 101 of fig. 1 to 3) includes a rear plate 380, and the rear plate 380 may include a glass plate 381, a printing layer 382, and a shielding layer 383 sequentially arranged on a coating layer 384 in a first direction + Z. The configuration of the rear plate 380 of fig. 7 may be wholly or partially identical to that of the rear plate 380 of fig. 5 and 6.

The following description focuses mainly on the difference in the pattern direction according to the glass plate 381.

According to various embodiments, the glass plate 381 may include a first surface 3811 facing a first direction + Z and a second surface 3812 facing a second direction-Z opposite the first direction + Z. The first surface 3811 of the glass plate 381 may include a substrate region 410 and a pattern region 422.

According to various embodiments, the pattern of the designated shape formed in the pattern region 422 may be implemented to have a shape protruding to the outside (e.g., in the first direction + Z) from the first plate 3811 of the glass plate 381, and may be formed by an engraved pattern formed in a mold structure for forming. For example, an engraved pattern formed in a pattern portion of the mold structure may form the pattern region 422 of the glass plate 381 into a relief pattern. According to an embodiment, a plurality of processing lines 430 may be included in each of the designated shape patterns formed in the pattern region 422 including the protrusion structure.

According to various embodiments, the printed layer 382 may be disposed on the glass plate 381 in the first direction + Z. At least a partial region of the printed layer 382 may be provided in a shape corresponding to the first surface 3811 of the glass plate 381. For example, when the pattern of the designated shape of the pattern region 422 of the glass plate 381 has a structure protruding to the outside of the glass plate 381, the outer surface of the printed layer 382 may be prepared in a concave structure or a groove structure corresponding to the protruding structure to surround the pattern region 422.

Although the embodiment described in connection with fig. 6 or 7 discloses only that the pattern of the designated shape of the pattern region 421 or 422 of the first surface 3811 of the glass plate 381 is recessed or protruded, embodiments of the present disclosure are not limited thereto, but various design changes may be made thereto. For example, various patterns formed in a concave structure and a convex structure may be formed together on the first surface 3811 of the glass plate 381.

Fig. 8 is an enlarged cross-sectional view illustrating a region of fig. 5 according to another embodiment of the present disclosure.

Referring to fig. 8, an electronic device (e.g., the electronic device 101 of fig. 1 to 3) includes a rear plate 380, and the rear plate 380 may include a glass plate 381, a printing layer 382, and a shielding layer 383 sequentially arranged on a coating layer 384 in a first direction + Z. The configuration of the rear plate 380 of fig. 7 may be wholly or partially identical to that of the rear plate 380 of fig. 5 and 6.

The following description focuses mainly on differences in the surface and the pattern direction according to the pattern region formed thereat.

According to various embodiments, the glass plate 381 may include a first surface 3811 facing a first direction + Z and a second surface 3812 facing a second direction-Z opposite the first direction + Z.

According to various embodiments, the pattern of the designated shape formed in the pattern region 423 may be implemented to have a shape protruding to the outside (e.g., in the second direction-Z) from the second plate 3812 of the glass plate 381, and may be formed by an engraved pattern formed in a mold structure for forming. According to another embodiment, the pattern of the designated shape formed in the pattern region 424 may be realized by a depression formed in the second surface 3812 of the glass plate 381 (e.g., a shape depressed inward in the glass plate), and may be formed by a relief pattern formed in a mold structure for forming. According to an embodiment, a plurality of processing lines 430 may be included in each of the designated shape patterns formed in the pattern regions 423 and 424.

According to various embodiments, the coating 384 may be disposed on the glass plate 381 in the second direction-Z. At least a partial region of the printed layer 382 may be provided in a shape corresponding to the second surface 3812 of the glass plate 381. For example, when the pattern shape formed in the pattern region 422 of the glass plate 381 has a structure protruding to the outside of the glass plate 381, the outer surface of the coating layer 384 may be prepared in a concave or groove structure corresponding to the protruding structure to surround the pattern region 423. As another example, when the pattern of the designated shape of the pattern region 424 of the glass plate 381 has a concave structure or a convex structure in the glass plate 381, the outer surface of the coating layer 384 corresponding to the pattern region 424 may be prepared as a convex structure or a concave structure corresponding to a concave or a concave groove, filling the space formed in the pattern region 424.

Fig. 9a is an enlarged cross-sectional view illustrating a pattern region of a rear plate of an electronic device according to various embodiments of the present disclosure. Fig. 9b is an enlarged cross-sectional view illustrating a pattern region obtained by processing a rear plate using a laser according to an embodiment of the present disclosure.

According to various embodiments, an electronic device (e.g., the electronic device 101 of fig. 1-3) may include a back plate 380, and the back plate 380 may include a glass plate 381 that includes a pattern area 421. The configuration of the glass plate 381 of fig. 9a and 9b may be wholly or partially the same as that of the glass plate 381 of fig. 5 and 6.

Referring to fig. 9a, the pattern region 421 of the glass plate 381 may include a pattern P having a designated shape and a plurality of processing lines 430 forming a regular line inside the pattern P. The processing lines 430 may be spaced apart from each other. The plurality of processing lines 430 may be patterns formed by thermoforming, and may represent processing patterns of a machine processing a thermoforming mold transferred into the pattern region 421. The plurality of processing lines 430, along with the pattern of the specified shape, may provide an aesthetic design for the glass sheet 381.

On the other hand, referring to fig. 9b, a cross section of the glass plate including the pattern formed by the laser may be identified. The pattern formed by the laser includes an irregular processed surface, and exhibits cracks due to fusion of the laser treatment, and is less aesthetically pleasing than the present invention. Further, unlike the invention disclosed herein, the pattern formed by laser lacks a processing line for thermoforming, and thus a pattern region giving a sense of depth cannot be formed.

The following describes a process for manufacturing a rear plate of an electronic device.

Fig. 10a and 10b are flow diagrams illustrating a process for manufacturing a back plate of an electronic device according to an embodiment of the present disclosure.

According to various embodiments, the process of manufacturing the back plate 380 may be performed in the order of Computer Numerical Control (CNC) (cutting and machining), edge polishing, thermoforming, polishing, reinforcing, and coating formation.

According to various embodiments of the present disclosure, additional processes may not be included, such as printed film lamination for patterning, which was provided after coating formation in the past, and patterning may be performed during thermoforming.

According to various embodiments, by thermoforming, glass 381a formed from an entire flat sheet may be inserted into a mold structure and formed into a sheet having a specific structure. For example, glass including a flat region and a curved region (hereinafter, referred to as 3D glass 381) may be manufactured during thermoforming and used for electronic devices.

Referring to fig. 10a and 10b, a pre-treated glass 381a may be inserted into the first mold structure 600a according to step 11. According to an embodiment, the first mold structure 600a for manufacturing the back plate 380 of the electronic device may include a first upper core structure 610a and a first lower core structure 620 a. The first upper core structure 610a and/or the first lower core structure 620a may partially include shape processed portions 611a and 621a for forming an overall shape of the glass 381. As another example, in the region of the shape processed portion 611a or 621a of the upper core structure 610a and/or the lower core structure 620a, an engraved and/or embossed pattern portion 612a or 613a for forming a pattern in a region of the glass 381 may be formed.

According to an embodiment, the shape processed parts 611a and 621a may be formed at the bottom of the first upper core structure 610a and the top of the first lower core structure 620a, respectively. The shape processed parts 611a and 621a have a flat surface in the middle and a curved surface at the edge, so that the glass 381a can be formed into the 3D glass 381. For example, the shape processed portion 611a of the first upper core structure 610a may protrude toward the first lower core structure 620a, and the first lower core structure 620a may be recessed corresponding to the protrusion.

According to an embodiment, the pattern portion 612a or 613a may be formed on one surface of the shape processed portion 611a of the first upper core structure 610 a. For example, referring to fig. 10a, the first pattern portion 612a may be a pattern shaped to have a single height. As another example, referring to fig. 10b, the second pattern portion 613a may be a pattern formed in multiple steps or have a 3D shape including a slope. The glass 381a may be positioned such that an area thereof requiring a pattern faces the first pattern portion 612a or the second pattern portion 613 a.

According to step 12, the first upper core structure 610a may be lowered and coupled to the first lower core structure 620 a. The glass 381a disposed between the first upper core structure 610a and the first lower core structure 620a may be expanded by internal high temperature preheating. As the first upper core structure 610a and the first lower core structure 620a are coupled and the pressure is transmitted, the glass 381a may be molded into an integral shape according to the shape processing parts 611a and 621 a. Further, the pattern shape of the pattern portion 612a or 613a may be simultaneously formed in one region of the glass 381 a. For example, when the pattern of the first pattern portion 612a is transferred according to fig. 10a, the glass may have a pattern area in which a pattern of a single height is formed. As another example, when the pattern of the second pattern part 613a is transferred according to fig. 10b, the glass may have a pattern region formed in a plurality of steps or a 3D shape having a slope.

According to step 13, when the formation of the glass is completed, the entire shape of the 3D glass 381 including the three patterns may be completed by cooling.

According to the embodiments of the present disclosure, it is possible to form the entire shape of the rear plate of the electronic device while forming a pattern in a portion by thermoforming as described above. Thus, no additional printed film lamination process is required, time and tooling costs are saved, and an aesthetic design is provided by the thermoformed pattern.

Fig. 11 is a flowchart illustrating a process for manufacturing a rear plate of an electronic device according to another embodiment of the present disclosure.

According to various embodiments, the process of manufacturing the back plate 380 as shown in fig. 10 may be applied to the overall manufacturing process of the back plate 380. However, according to an embodiment of the present disclosure, a process for forming a 3D pattern may be applied in a different order from the steps of fig. 10.

According to various embodiments, by thermoforming, glass 381a formed from an entire flat sheet may be inserted into a mold structure and formed into a sheet having a specific structure. For example, glass including a flat region and a curved region (hereinafter, referred to as 3D glass 381) may be manufactured during thermoforming and used for electronic devices.

According to step 21, the step for forming a pattern can be preferentially performed. The pre-treated glass 381a may be injected into the second mold structure 600 b. According to an embodiment, the second mold structure 600b may include a second upper core structure 610b and a second lower core structure 620 b. A pattern portion 612b for transferring a pattern to the pretreatment glass 381a may be formed on one surface of the second upper core structure 610 b. For example, the pattern portion 612b may be a pattern having a shape of a single height. As another example, the second pattern portion 613a may be a pattern formed as a plurality of steps, or a pattern having a 3D shape including a slope. The second lower core structure 620b may be provided as a flat surface capable of supporting an entire surface of the preliminary glass 381 a.

According to an embodiment, the second upper core structure 610b may be lowered to press the glass 381a disposed in the second lower core structure 620 b. The pattern shape of the pattern portion 612b may be formed in a region of the glass 381a disposed between the second upper core structure 610b and the second lower core structure 620b by high temperature preheating and/or pressure transfer inside the mold.

According to step 22, a patterned glass 381b may be inserted into the third mold structure 600 c. According to an embodiment, the third mold structure 600c may include a third upper core structure 610c and a third lower core structure 620 c. The shape processed parts 611c and 621c may be provided at the bottom of the third upper core structure 610c and the top of the third lower core structure 620 c. The shape processed parts 611c and 621c have a flat surface in the middle and a curved surface at the edge, so that the patterned glass 381b can be formed into the 3D glass 381.

According to step 23, the third upper core structure 610c may be moved downward and coupled to the third lower core structure 620 c. The patterned glass 381b disposed between the third upper core structure 610c and the third lower core structure 610c may be expanded by internal high temperature preheating. As the third upper core structure 610c and the third lower core structure 620c are coupled and the pressure is transferred, the patterned glass 381b may undergo the formation of an overall shape according to the shape processing parts 611c and 621 c.

According to step 24, when the formation of the glass is completed, the entire shape of the 3D glass 381 including the pattern region may be completed by cooling. The pattern region may include a pattern having a shape of a single height formed in the second upper core structure 610c, or may include a pattern formed as a plurality of steps or a pattern having a 3D shape including a slope.

Fig. 12 is a flowchart illustrating a process for manufacturing a rear plate of an electronic device according to another embodiment of the present disclosure.

According to various embodiments, the process of manufacturing the back plate 380 as shown in fig. 10 may be applied to the overall manufacturing process of the back plate 380. According to various embodiments of the present disclosure, the glass 381b in which the pattern region 421 has been included may be processed to form a 3D pattern in a manner different from that shown in fig. 10.

According to step 31, a glass material having a pattern region 421 may be prepared. For example, the pattern formed in the glass material may be a pattern having a shape with a single height, or may be a pattern formed in a plurality of steps or having a 3D shape including a slope.

According to step 32, patterned glass 381b may be inserted into the third mold structure 600 c. According to an embodiment, the third mold structure 600c may include a third upper core structure 610c and a third lower core structure 620 c. The shape processed parts 611c and 621c may be provided at the bottom of the third upper core structure 610c and the top of the third lower core structure 620 c. The shape processed parts 611c and 621c have a flat surface in the middle and a curved surface at the edge, so that the patterned glass 381b can be formed into the 3D glass 381.

According to step 33, the third upper core structure 610c may be moved downward and coupled to the third lower core structure 620 c. The patterned glass 381b disposed between the third upper core structure 610c and the third lower core structure 610c may be expanded by internal high temperature preheating. As the third upper core structure 610c and the third lower core structure 620c are coupled and the pressure is transferred, the patterned glass 381b may undergo the formation of an overall shape according to the shape processing parts 611c and 621 c.

When the formation of the glass is completed, the overall shape of the 3D glass 381 including the pattern may be completed by cooling, according to step 34.

Fig. 13 is a view illustrating a mold structure for manufacturing a rear plate of an electronic device according to various embodiments of the present disclosure.

According to various embodiments, the process of manufacturing the rear plate 380 as shown in fig. 10a, 10b, 11, and 12 may be applied to the overall manufacturing process of the rear plate 380 according to various embodiments. According to various embodiments of the present disclosure, a suction portion may be mounted on the mold structure to enhance patterning of the glass.

According to various embodiments, in the thermoforming, the 3D glass including the flat portion and the curved portion may be manufactured and used by the fourth mold structure 600D. Referring to fig. 13, thermoforming using the disclosed fourth mold structure 600d may additionally be provided in step 12 of fig. 10a and 10 b. As another example, it may be added to step 23 of fig. 11. As another example, it may be added to step 33 of fig. 12.

According to an embodiment, the glass 381b including the pattern region 421 may be inserted into the fourth mold structure 600 d. The fourth mold structure 600d may include a fourth upper core structure 610d and a fourth lower core structure 620 d. The shape processed portions 611d and 621d may be provided at the bottom of the fourth upper core structure 610d and the top of the fourth lower core structure 620 d. The shape processed parts 611D and 621D have a flat surface in the middle and a curved surface at the edge so that the glass can be formed into 3D glass.

According to an embodiment, the fourth upper core structure 610d and the fourth lower core structure 620d may comprise a suction portion 614, the suction portion 614 comprising at least one suction port. For example, the fourth upper core structure 610d may include a plurality of suction ports connected to the outside through the shape processed portion 611 d. Multiple suction ports may be operated in the patterned area 421 of the glass to enhance transferability of the pattern during thermoforming. The suction operation or the exhaust operation may be performed according to a pattern shape of the glass (e.g., engraving or embossing). As another example, the fourth upper core structure 620d may include a plurality of suction ports connected to the outside through the shape processing portion 621 d. Multiple suction ports may be operated in the patterned area 421 of the glass to enhance transferability of the pattern during thermoforming. The suction operation or the exhaust operation may be performed according to a pattern shape of the glass (e.g., engraving or embossing).

According to an embodiment, the pumping parts 614 separately provided in the fourth upper core structure 610d and the fourth lower core structure 620d may be used simultaneously or sequentially, or only one of them may be used. As another example, the suction portion 614 may operate to form the overall shape of the glass.

Fig. 14 is a view illustrating a mold structure for manufacturing a rear plate of an electronic device according to various embodiments of the present disclosure.

According to various embodiments, the process of manufacturing the rear plate 380 as shown in fig. 10a, 10b, 11, and 12 may be applied to the overall manufacturing process of the rear plate 380 according to various embodiments. According to various embodiments of the present disclosure, a position adjustment portion may be mounted on the mold structure to enhance patterning of the glass.

According to various embodiments, in the thermoforming, the 3D glass including the flat portion and the curved portion may be manufactured and used by the fifth mold structure 600 e. Referring to fig. 14, the configuration of the fifth mold structure 600e including the position adjustment portion 617 as disclosed may be applied to the mold structures of fig. 10a and 10b, fig. 11 and 12, or fig. 13.

According to various embodiments, the shape processed part 611e for forming the entire shape of the glass may be provided on one region of the fifth upper core structure 610e of the fifth mold structure 600e for manufacturing the rear plate of the electronic device 101. As another example, a pattern portion 612e engraved and/or embossed to form a pattern in one area of the glass may be provided in another area of the upper core structure 610.

According to an embodiment, the pattern part 612e may be formed as a core separable from the shape processing part 611e, so that the pattern part having various patterns desired by a worker may be selected and installed according to the preference of the worker.

According to an embodiment, the fifth upper core structure 610e may further include a position regulating portion 617 provided on one surface of the pattern portion 612 e. The position regulating portion 617 is manufactured to have a size corresponding to the pattern portion 612e, and the height is adjusted to allow the pattern portion 612e to protrude beyond the shape processing portion 611e or to retract from the shape processing portion 611 e. For example, the position regulating part 617 may provide an area in which it is difficult to transfer a pattern to glass, realizing glass having an enhanced pattern shape.

FIG. 15 is a flow diagram illustrating a post thermoforming process according to various embodiments of the present disclosure.

According to various embodiments, the process of manufacturing the rear plate 380 as shown in fig. 10a, 10b, 11, and 12 may be applied to the overall manufacturing process of the rear plate according to various embodiments. According to various embodiments of the present disclosure, after the glass is patterned, the entire area of the glass is subjected to polishing, thereby providing a smooth surface, enhancing roughness, reducing haze, and allowing thickness grinding.

According to various embodiments, after thermoforming, polishing may be performed. For polishing, according to step 41, resin coating and hardening may be performed first. According to one embodiment, a UV resin may be used for the resin coating, and after the coating 801 is formed in a thickness capable of covering the concave or convex portions of the pattern region 421 of the glass, hardening may be performed.

Thereafter, polishing using the polishing pad 802 may be performed, in accordance with step 42. The polishing pad 802 can remove the resin coating 801 formed around the pattern having the designated shape while polishing the entire top surface of the glass. In the polishing, one surface of the resin coating inserted into each shape of the pattern of the designated shape may be coplanar or flush with the top surface of the glass. Accordingly, the polishing pad 802 can be prevented from polishing the edge area of each shape of the pattern, and the shape of the pattern can be prevented from being crushed or polished away.

The entire shape of the 3D glass including the polished 3D pattern may be completed by peeling off the resin coating inserted into each shape of the pattern according to step 43 after polishing.

Fig. 16 is a flow chart illustrating a process for machining a line including a bevel according to various embodiments of the present disclosure.

According to various embodiments, the process of manufacturing the rear plate 380 as shown in fig. 10a, 10b, 11, and 12 may be applied to the overall manufacturing process of the rear plate according to various embodiments. According to various embodiments of the present disclosure, after the glass is patterned, the entire area of the glass is subjected to polishing, thereby providing a smooth surface, enhancing roughness, reducing haze, and allowing thickness grinding.

According to various embodiments, after thermoforming, polishing may be performed. A plurality of processing lines 430 may be formed in the pattern region of the rear plate. In order to make the rear plate beautiful, portions of the plurality of processing lines 430, which are relatively more exposed to the outside, may be removed by polishing. For example, each processing line 430 shaped as a rectangle or a cylinder may be polished at the side so as to have a designated slope.

According to various embodiments, each processing line 431 may have upper and lower ends having areas different from each other. When polishing is performed from the externally exposed region, each processing line 431 may be shaped such that the upper end is narrowed and the lower end is relatively wider than the upper end. For example, in the cross-sectional view of the processing line 431 of fig. 16, the length of the upper end is T and the length of the lower end is T, where T is greater than T.

According to various embodiments, as polishing progresses, the depth of the processing line 431 may decrease and the angle of the designated bevel may increase. For example, each processing line 431 may be transformed into a triangular pyramid or a rectangular pyramid as the difference between the upper end and the lower end increases.

According to various embodiments of the present disclosure, a back plate (e.g., back plate 380 of fig. 5) covering a back surface of an electronic device (e.g., electronic device 101 of fig. 1-3) may include: a glass plate (e.g., the glass plate 381 of fig. 5) including a pattern region (e.g., the pattern region 421 of fig. 5) including a pattern having a prescribed shape in at least a partial region; a print layer (e.g., print layer 382 of fig. 5) disposed on the first surface of the glass sheet; a shielding layer (e.g., shielding layer 383 of fig. 5) stacked with the printed layer; and a coating (e.g., coating 384 of fig. 5) disposed on a second surface of the glass sheet opposite the first surface. The patterned region of the glass sheet may include a plurality of processing lines (e.g., processing lines 430 of fig. 5) spaced apart from one another.

According to various embodiments, the plurality of processing lines may be arranged in a direction substantially perpendicular to one surface on which the pattern having the designated shape is formed.

According to various embodiments, the glass sheet may include a first surface (e.g., first surface 3811) facing a first direction and a second surface (e.g., second surface 3812 of fig. 5) facing a second direction. The pattern region may be formed on at least one of the first surface or the second surface.

According to various embodiments, a pattern having a designated shape formed in a pattern region may include a shape of a single height.

According to various embodiments, the pattern having a designated shape formed in the pattern region may be formed as a plurality of steps, or have a three-dimensional (3D) shape including a slope.

According to various embodiments, the pattern having a designated shape formed in the pattern region may include a curved surface.

According to various embodiments, a glass sheet may include a flat region and a curved region formed along two opposing ends of the flat region. The pattern region may be formed in at least one of the flat region or the curved region.

According to various embodiments, the structure including the flat and curved regions and the pattern region of the glass sheet may be shaped by thermoforming.

According to various embodiments, the pattern region formed on the first surface may include a structure recessed to the inside of the glass plate or a structure protruding to the outside of the glass plate.

According to various embodiments, the pattern region formed on the second surface may include a structure recessed to the inside of the glass plate or a structure protruding to the outside of the glass plate.

According to various embodiments, the rear plate may further include a deposition layer disposed between the glass plate and the printing layer, and a transparent member layer (e.g., the transparent member layer 385 of fig. 5) disposed between the glass plate and the deposition layer. At least a portion of the transparent member layer may be provided as an optically transparent adhesive layer to adhere the glass plate and the deposition layer.

According to various embodiments, the rear plate may further include a transparent member layer disposed between the glass plate and the deposition layer. At least a portion of the transparent member layer may be provided as an optically transparent adhesive layer and directly coupled to the printed layer. The printed layer is rendered to include color by color printing.

According to various embodiments of the present disclosure, an electronic device (e.g., the electronic device 101 of fig. 1-3) may include: a housing (e.g., housing 320 of fig. 2) including a front plate (e.g., front plate 320 of fig. 5) facing a first direction and a rear plate (e.g., rear plate 380 of fig. 5) facing a second direction opposite the front plate, at least a portion of the front plate including a transparent region; a battery (e.g., battery 350 of fig. 4) disposed inside the housing; and a display (e.g., display 330 of fig. 4) disposed in the housing and including a screen area exposed through the front cover. The rear plate may include: a glass plate (e.g., the glass plate 381 of fig. 5) including a pattern region (e.g., the pattern region 421 of fig. 5) including a pattern having a prescribed shape in at least a partial region; a printed layer (e.g., printed layer 382 of fig. 5) disposed on the glass sheet in the first direction; a shielding layer (e.g., shielding layer 383 of fig. 5) stacked with the printed layer; and a coating (e.g., coating 384 of fig. 5) disposed on the glass sheet in a second direction opposite the first direction. The patterned region of the glass sheet may include a plurality of processing lines (e.g., processing lines 430 of fig. 5) spaced apart from one another.

According to various embodiments, virtual lines (e.g., virtual line L of fig. 5) formed along respective centers of the plurality of processing lines may be arranged in parallel with each other. Each of the plurality of processing lines may have upper and lower ends having areas different from each other.

According to various embodiments, a glass sheet may include a flat region and a curved region formed along two opposing ends of the flat region. The pattern region may be formed in at least one of the flat region or the curved region.

According to various embodiments, the rear panel may further include a transparent member layer disposed between the glass plate and the printing layer. At least a portion of the transparent member layer may be provided as an optically transparent adhesive layer and directly coupled to the printed layer. The printed layer may be rendered to include color by color printing.

According to various embodiments of the present disclosure, a method for manufacturing a rear plate may include: a step of inserting a glass sheet into the mold structure and placing it in a region of a lower core structure of the mold structure; a step of preheating the glass sheet at a high temperature and descending the upper core structure of the mold structure toward the lower core structure; a step of shape processing portions of the upper core structure and the lower core structure pressing the glass sheet to form a curved surface; and a cooling step.

According to various embodiments, the method may further include a step in which the pattern portion formed in the upper core structure or the lower core structure presses the glass sheet to transfer the pattern having the designated shape, while forming the curved surface of the glass sheet in the forming step.

According to various embodiments, the method may further comprise the step of forming a pattern having a specified shape on one surface or both opposing surfaces of the glass sheet prior to insertion of the glass sheet into the mold structure.

According to various embodiments, the pattern of the glass sheet having the designated shape may include a plurality of processing lines spaced apart from each other by thermoforming.

According to various embodiments, the method may further include polishing after the pattern forming step, and during the polishing, each of the plurality of processing lines may form a designated slope on at least one surface.

It will be apparent to those skilled in the art that the electronic device including the rear plate and the method of manufacturing the same according to the various embodiments of the present invention as described above are not limited to the embodiments described above and shown in the drawings, and that various changes, modifications or alterations may be made thereto without departing from the scope of the present invention.