KR20200008727A - Curved glass and electronic device including the same - Google Patents

Abstract

Disclosed is a curved glass. A curved glass according to various embodiments comprises a flat area whose both sides are formed in flat surfaces, and a plurality of edge areas which is extended from a corner of the flat area and having one sides formed in curved surfaces. The plurality of edge areas may comprise at least one bending area whose both sides are formed in identical curved surfaces and which is extended at least one corner of the flat area; at least one convex area which has an opposite side formed in a flat surface and is extended from a corner adjacent to the at least one corner to be thinner; and a transient area which is disposed between the bending area and the convex area. According to the present invention, yield of curved glass production can be improved.

Description

Curved glass and electronics including the same {CURVED GLASS AND ELECTRONIC DEVICE INCLUDING THE SAME}

Various embodiments relate to curved glass with curved surfaces in edge regions and electronic devices with curved glass.

The electronic device may transmit light emitted from a display mounted inside the electronic device to the outside, including glass exposed to the outside of the electronic device, and use the glass in an exterior design. For performance, user convenience, and design differentiation of the electronic device, the exterior glass of the electronic device may be formed in a curved surface.

The exterior glass of the electronic device may adjust the viewing angle by forming the main display area as a curved surface according to the display panel of the electronic device, and improve the aesthetics by forming the corner area as the curved surface. Depending on the function and purpose of the electronic device, the shape of the curved glass can be determined.

The exterior glass of the electronic device may implement a curved area of the edge of the exterior glass in order to enhance aesthetics or extend the display to the edge region. When molding all the edges of the exterior glass into curved surfaces, if the four sides of the exterior glass are molded by bending, the defective rate may be increased in the vertex region of the exterior glass, that is, the region in which the bending direction is changed. Therefore, a method for increasing the yield of curved glass through four-side bending molding may be required.

The technical problem to be achieved in this document is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

The curved glass according to various embodiments of the present disclosure may include a flat area formed on both sides of a flat surface and a plurality of edge areas extending from an edge of the flat area and having one surface curved. The plurality of edge regions may include at least one bending area formed on a curved surface having the same shape on both sides thereof and extending from at least one edge of the flat region, and the other surface may be formed in a flat surface and the at least one edge may be formed. And at least one convex area extending from the edge adjacent to the film to become thinner, and a transition area disposed between the bending area and the convex area.

According to various embodiments of the present disclosure, an electronic device may include a flexible display panel including a plurality of pixels emitting light and a transparent member that transmits the light to the outside and is disposed on the display, wherein the transparent member includes at least one of the electronic devices. A flat surface forming one surface, a first bending surface extending from the first corner and the first corner of the flat surface, a second bending surface extending from the second corner of the flat surface opposite to the first corner, and Extending from a third edge of the flat surface, one end of the first bending surface, and one end of the second bending surface, the extended upper surface being the curved first convex surface and the fourth corner of the flat surface, the first bending An extended upper surface extending from the other end of the surface and the other end of the second bending surface may include a curved second convex surface.

According to various embodiments of the present disclosure, the method may include: preparing a glass sheet, forming a convex surface symmetrical with respect to a central axis of the glass sheet at a first corner of the glass sheet and a second corner opposite to the first corner; To provide a curved glass manufacturing method comprising the step of forming a bending surface to be symmetrical with respect to the center axis of the glass sheet and the third and fourth corner located between the first and second corner of the glass sheet. Can be.

Curved glass according to various embodiments can reduce the defective rate in the vertex region of the curved glass, thereby increasing the yield in the curved glass production.

1 is a perspective view of a front side of a mobile electronic device according to one embodiment.
FIG. 2 is a perspective view of a rear surface of the electronic device of FIG. 1.
3 is an exploded perspective view of the electronic device of FIG. 1.
4A and 4B are front and rear perspective views of a transparent member according to an embodiment.
5 is a cross-sectional view taken along the line AA ′ of the transparent member of FIG. 4A.
FIG. 6 is a cross-sectional view taken along the line B-B 'of the transparent member of FIG. 4A.
FIG. 7A is an enlarged view of region A of FIG. 5, and FIG. 7B is an enlarged view of region B of FIG. 6.
8A is a side view seen from one end of the transparent member according to one embodiment.
8B is a cross-sectional view taken along the line 0-E1 of the transparent member of FIG. 8A.
8C is a cross-sectional view taken along the line 0-E2 of the transparent member of FIG. 8A.
8D is a cross-sectional view taken along the line 0-E3 of the transparent member of FIG. 8A.
9 is a flowchart illustrating a manufacturing process of a transparent member according to an embodiment.
10 is a schematic diagram illustrating a manufacturing process of FIG. 9.
11 is a flowchart illustrating a manufacturing process of a transparent member according to another embodiment.
12 is a schematic diagram illustrating a manufacturing process of FIG. 11.
13A and 13B are front and rear perspective views of a transparent member according to various embodiments.

1 and 2, an electronic device 100 according to an embodiment may include a first surface (or front surface) 110A, a second surface (or rear surface) 110B, a first surface 110A, and It may include a housing 110 including a side (110C) surrounding the space between the second surface (110B). In another embodiment (not shown), the housing may refer to a structure that forms some of the first surface 110A, second surface 110B, and side surfaces 110C of FIG. 1. According to one embodiment, the first face 110A may be formed by a front plate 102 (eg, a glass plate comprising various coating layers, or a polymer plate) that is at least partially substantially transparent. The second side 110B may be formed by the substantially opaque back plate 111. The back plate 111 is formed by, for example, coated or colored glass, ceramic, polymer, metal (eg, aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the above materials. Can be. The side 110C may be formed by a side bezel structure (or “side member”) 118 that engages the front plate 102 and the back plate 111 and includes metal and / or polymer. In some embodiments, back plate 111 and side bezel structure 118 may be integrally formed and include the same material (eg, a metal material such as aluminum).

In the illustrated embodiment, the front plate 102 includes two first regions 110D extending seamlessly from the first surface 110A toward the rear plate 111 and extending seamlessly. It may be included at both ends of the long edge (102). In the illustrated embodiment (see FIG. 2), the back plate 111 has a long edge between two second regions 110E extending seamlessly from the second face 110B toward the front plate 102. It can be included at both ends. In some embodiments, the front plate 102 (or the back plate 111) may include only one of the first regions 110D (or the second regions 110E). In another embodiment, some of the first regions 110D or the second regions 110E may not be included. In the above embodiments, when viewed from the side of the electronic device 100, the side bezel structure 118 may have a side surface where the first regions 110D or the second regions 110E are not included. It may have a first thickness (or width) and a second thickness that is thinner than the first thickness on the side surface including the first regions 110D or the second regions 110E.

According to an embodiment, the electronic device 100 may include a display 101, an audio module 103, 107, 114, a sensor module 104, 116, 119, a camera module 105, 112, 113, and a key input. The device 117 may include at least one of the light emitting device 106, the pen input device 120, and the connector holes 108 and 109. In some embodiments, the electronic device 100 may omit at least one of the components (for example, the key input device 117 or the light emitting element 106) or may further include other components.

The display 101 may be exposed through, for example, a substantial portion of the front plate 102. In some embodiments, at least a portion of the display 101 may be exposed through the front plate 102 forming the first surface 110A and the first regions 110D of the side surface 110C. In some embodiments, the edges of the display 101 may be formed approximately the same as the adjacent outer shape of the front plate 102. In another embodiment (not shown), the distance between the outer side of the display 101 and the outer side of the front plate 102 may be formed to be substantially the same in order to expand the area where the display 101 is exposed.

In another embodiment (not shown), an audio module 114 and a sensor are formed in a portion of the screen display area of the display 101 and are aligned with the recess or opening. At least one of the module 104, the camera module 105, and the light emitting device 106 may be included. In another embodiment (not shown), the audio module 114, the sensor module 104, the camera module 105, the fingerprint sensor 116, and the light emitting element 106 are located behind the screen display area of the display 101. It may include at least one of). In another embodiment (not shown), the display 101 is coupled or adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of the touch, and / or a digitizer for detecting a magnetic field stylus pen. Can be arranged. 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 configured such that the first regions 110D, and / or the second regions 110E. Can be placed in the field.

The audio module 103, 107, 114 may include a microphone hole 103 and a speaker hole 107, 114. The microphone hole 103 may include a microphone for acquiring an external sound, and in some embodiments, a plurality of microphones may be disposed to detect a direction of the sound. The speaker holes 107 and 114 may include an external speaker hole 107 and a receiver receiver hole 114 for a call. In some embodiments, the speaker holes 107 and 114 and the microphone hole 103 may be implemented as one hole, or the speaker may be included without the speaker holes 107 and 114 (for example, a piezo speaker).

The sensor modules 104, 116, and 119 may generate an electrical signal or data value corresponding to an operating state inside the electronic device 100 or an external environment state. The sensor modules 104, 116, 119 may comprise, for example, a first sensor module 104 (eg, proximity sensor) and / or a second sensor module (eg, disposed on the first surface 110A of the housing 110). Not shown) (eg, fingerprint sensor), and / or third sensor module 119 (eg, HRM sensor) and / or fourth sensor module 116 disposed on the second surface 110B of the housing 110. ) (Eg, fingerprint sensor). The fingerprint sensor may be disposed on the first surface 110A (eg, the display 101 as well as the second surface 110B) of the housing 110. The electronic device 100 may be a sensor module (not shown). For example, at least one of a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor 104 may be used. It may include.

The camera modules 105, 112, and 113 are the first camera device 105 disposed on the first surface 110A of the electronic device 100, and the second camera device 112 disposed on the second surface 110B. ) And / or flash 113. The camera devices 105, 112 may include one or a plurality of 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 (infrared cameras, wide angle and telephoto lenses) and image sensors may be disposed on one side of the electronic device 100.

The key input device 117 may be disposed on the side surface 110C of the housing 110. In another embodiment, the electronic device 100 may not include some or all of the above-mentioned key input device 117 and the non-included key input device 117 may include other soft keys or the like on the display 101. It may be implemented in the form. In some embodiments, the key input device may include a sensor module 116 disposed on the second surface 110B of the housing 110.

The light emitting element 106 may be disposed, for example, on the first surface 110A of the housing 110. The light emitting element 106 may provide, for example, state information of the electronic device 100 in the form of light. In another embodiment, the light emitting element 106 may provide a light source that is interlocked with, for example, the operation of the camera module 105. The light emitting element 106 may include, for example, an LED, an IR LED, and a xenon lamp.

The connector holes 108 and 109 may include a first connector hole 108 capable of receiving a connector (eg, a USB connector) for transmitting and receiving power and / or data with an external electronic device, and / or an external electronic device. And a second connector hole (eg, an earphone jack) 109 that can accommodate a connector for transmitting and receiving audio signals.

The pen input device 120 (eg, a stylus pen) may be inserted into or removed from the housing 110 through a hole 121 formed at the side of the housing 110, and may be easily removed. It may include a button for enabling. The pen input device 120 may include a separate resonant circuit to interlock with an electromagnetic induction panel 390 (for example, a digitizer) included in the electronic device 100. The pen input device 120 may include an electro-magnetic resonance (EMR) method, an active electrical stylus (AES), and an electric coupled resonance (ECR) method.

Referring to FIG. 3, the electronic device 300 may include a side bezel structure 310, a first support member 311 (eg, a bracket), a front plate 320, a display 330, and an electromagnetic induction panel 390. , A printed circuit board 340, a battery 350, a second support member 360 (eg, a rear case), an antenna 370, a pen input device 120, and a back plate 380. In some embodiments, the electronic device 300 may omit at least one of the components (eg, the first support member 311 or the second support member 360) or further include other components. . At least one of the components of the electronic device 300 may be the same as or similar to at least one of the components of the electronic device 100 of FIG. 1 or 2, and overlapping descriptions thereof will be omitted below.

The electromagnetic induction panel 390 (eg, a digitizer) may be a panel for sensing an input of the pen input device 120. For example, the electromagnetic induction panel 390 may include a printed circuit board (PCB) (eg, a flexible printed circuit board (FPCB)) and a shielding sheet. The shielding sheet may prevent interference between the components by electromagnetic fields generated from components included in the electronic device 100 (eg, display module, printed circuit board, electromagnetic induction panel, etc.). The shielding sheet may block the electromagnetic field generated from the components, so that the input from the pen input device 120 may be accurately transmitted to the coil included in the electromagnetic induction panel 240. The electromagnetic induction panel 240 according to various embodiments may include an opening formed in at least a partial region corresponding to the biometric sensor mounted in the electronic device 100.

The first support member 311 may be disposed inside the electronic device 300 to be connected to the side bezel structure 310 or may be integrally formed with the side bezel structure 310. The first support member 311 may be formed of, for example, a metal material and / or a non-metal (eg polymer) material. In the first support member 311, the display 330 may be coupled to one surface thereof, and the printed circuit board 340 may be coupled to the other surface thereof. The printed circuit board 340 may be equipped with a processor, a memory, and / or an interface. The processor may include, for example, one or more of a central processing unit, an application processor, a graphics processing unit, an image signal processor, a sensor hub processor, or a communication processor.

The memory may include, for example, volatile memory or nonvolatile memory.

The interface may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and / or an audio interface. For example, the interface may electrically or physically connect the electronic device 300 to an external electronic device, and may include a USB connector, an SD card / MMC connector, or an audio connector.

The battery 350 is a device for supplying power to at least one component of the electronic device 300 and may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell. . At least a portion of the battery 350 may be disposed on substantially the same plane as the printed circuit board 340, for example. The battery 350 may be integrally disposed in the electronic device 300, or may be detachably attached to the electronic device 300.

The antenna 370 may be disposed between the rear plate 380 and the battery 350. The antenna 370 may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna. The antenna 370 may, for example, perform short-range communication with an external device or wirelessly transmit and receive power required for charging. In another embodiment, the antenna structure may be formed by some or a combination of the side bezel structure 310 and / or the first support member 311.

4A and 4B are front and rear perspective views of a transparent member according to an embodiment.

Referring to FIG. 4A, according to an embodiment, the transparent member 4000 (or the front housing) may transmit at least one light displayed on a display panel (eg, the display 101 of FIG. 1). The transparent member 400 is made of a polymer of polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PE), polyethylene terephthalate (PET), polypropylene tere It may be formed of at least one of a polymer material such as phthalate (polypropylene terephthalate, PPT) or glass. According to an embodiment, the transparent member 400 may include a multilayer structure of various materials.

The transparent member 400 corresponding to the front plate 102 of FIG. 1 may include flat regions 410a and edge regions 410b and 410c. The flat area 410a represents a flat surface of the transparent member 400 and may be a surface that is not processed in the transparent member 400.

The edge regions 410b and 410c may correspond to at least one corner region of the transparent member 400, and the edge regions 410b and 410c may have at least one surface of the transparent member 400 corresponding to the edge region as a curved surface. . The edge regions 410b and 410c may be formed of the bending region 410b and the convex region 410c. The bending region 410b may be formed at two corner regions in the long direction of the transparent member 400, and the convex region 410c may be formed at two corner regions in the short direction of the transparent member 400.

According to various embodiments, the bending area 410b may be formed to be bent from the flat area 410a. The bending region 410b may be formed to have the same thickness and both surfaces may be bent in the same shape, and both surfaces may be formed to have a curved surface. The bending area 410b may be formed in a shape in which both edges are bent by arranging the transparent member 400 before molding in the lower mold corresponding to the final shape and pressing the upper portion corresponding to the lower mold.

According to various embodiments of the present disclosure, the convex region 410c may be a short edge region in which a portion of the front flat region 410a is cut or polished to form a curved surface. The thickness of the convex region 410c may become thinner from the front flat region 410a toward the short edge.

Referring to FIG. 4B, the rear surface of the transparent member 400 may include a rear flat region 420a and a rear bending region 420b. The rear bending area 420b may be formed at a position corresponding to the front bending area 410b. The back portion corresponding to the convex region 410c may be a region corresponding to the short edge of the flat region 420a. The convex region 410c may be formed by cutting two corner regions in a short direction on the front surface of the transparent member 400. According to various embodiments, at the front surface of the transparent member 400, the convex region 410c is formed in a curved surface, and at the rear surface of the transparent member 400, the convex region 410c is coplanar with the flat region 420a. Can be done with. At the rear surface of the transparent member 400, since no cutting process or bending process is performed in the convex region 410c, the flat surface of the transparent member 400 may be maintained as it is.

According to various embodiments, the bending area 410b extends with a curvature from the long edge of the flat area 410a to a certain thickness, such that the end of the bending area 410b is located below the rear surface of the transparent member 400. can do. The convex region 410c extends from the short edge of the flat region 410a of the transparent member 400, and may be shaped so that only the front surface of the transparent member 400 has a curved surface. One region of the rear surface of the transparent member 400 corresponding to the position of the convex region 410c matches the height of the rear surface, and the thickness of the convex region 410c may become thinner from the flat region 410a to the end.

According to various embodiments, the transparent member 400 may further include a transient region 410d at a point where the bending region 410b and the convex region 410c meet. The transient area 410d may be an area that is converted from the bending area 410b to the convex area 410c. According to various embodiments, the height of the end of the bending area 410b may be lower than the height of the rear flat area 420b, and the height of the rear surface of the convex area 410c may be the same as the height of the rear flat area 420b. . The transient area 410d is formed continuously from the height of the end of the flat area 420b to the rear height of the convex area 410c, so that the height of the transient area 410d is the convex area (from the end of the flat area 420b). Progressively up to the rear of 410c). Side surfaces of the transient area 410d corresponding to vertices of the transparent member 400 may be formed as rounded curved surfaces.

In the case where all four edge regions 410b and 410c are manufactured by the bending method, the transparent member 400 is folded in the transient region, and additional heating work or a method for ensuring a constant transmittance of the glass due to the folding is performed. A process may be necessary. In the transparent member 400 according to the exemplary embodiment, the edge region 410b having the long edge is manufactured by a bending process, and the edge region 410c having the short edge is formed by cutting work, so that the glass surface is also formed in the transient region 410d. Can be molded into a smooth, uniform surface.

FIG. 5: is sectional drawing which cut | disconnected the transparent member of FIG. 4A by A-A ', and FIG. 6 is sectional drawing which cut | disconnected the transparent member of FIG. 4A by B-B'.

Referring to FIG. 5 in which the transparent member 400 is cut in the width direction, the side surface of the bending area 410b may be bent below the rear flat area 420a. The bending area 410b may extend from the flat areas 410a and 420a to the curved surface. According to various embodiments, the thickness t1 of the transparent member 400 of the flat region 410a and the thickness t2 of the bending region 401b may be the same.

Referring to FIG. 6 in which the transparent member 400 is cut in the longitudinal direction, the convex region 410c may be formed by cutting the front flat region 410a. In the front flat region 410a, the front surface of the convex region 410c may be gradually lowered toward the end, so as to be similar to the height of the rear flat region 420a. The thickness a from the surface of the convex region 410c to the rear flat region 410a is thinner than the thickness t1 of the transparent member 400. The difference between the thickness a and the thickness t1 may be the thickness A of the cut or polished transparent member. The rear surface of the convex region 410c may have the same height as the rear flat region 420a and may be coplanar. According to various embodiments, the thickness of the convex region 410c may be thinner and thinner toward the edge extending from the flat regions 410a and 420a.

FIG. 7A is an enlarged view of region A of FIG. 5, and FIG. 7B is an enlarged view of region B of FIG. 6.

Referring to FIG. 7A, the bending area 410b may have various curvatures, and the front surface 410b and the rear surface 420b may have a curved surface having the same shape. In order to have a smooth curve in the longitudinal edge region, the bending region 410b may be formed with a plurality of curvatures.

The bending area 410b may include a first area 411, a second area 412, and a third area 413. The first region 411 may be formed as a curved surface having a radius of curvature R1 with respect to O1. The second region 412 may be formed as a curved surface having a radius of curvature R2 with respect to O2. The third region 413 may be formed as a curved surface having a radius of curvature R3 about O3.

According to various embodiments, the radiuses of curvature R1, R2, and R3 may be shortened from the flat area 410a to the end of the bending area 410b. The radius of curvature of the flat region is infinite, the radius of curvature R1 of the first region 411 is formed to have a length, the radius of curvature R2 of the second region 412 is the curvature of the first region 411 The radius R1 may be shorter than the radius R1, and the radius of curvature R3 of the third region 413 may be shorter than the radius of curvature R2 of the second region 412. The bending region 410b may be formed such that the curvature radii R1, R2, and R3 gradually become shorter toward the ends of the bending region 410b. It may be gently bent from the flat region 410a and then be bent steeply. According to various embodiments, the bending area 410b may be formed with one curvature or more curvature.

Referring to FIG. 7B, the front surface of the convex region 410c may be formed as a curved surface. The rear surface of the convex region 410c may be formed in the same plane as the rear flat region 420a to have the same height as the rear flat region 420a.

The curvature of the front surface of the convex region 410c may have a radius of curvature R4 about O4. The convex region 410c may be formed by processing an edge of the transparent member 400 by a cutting process or a polishing process, and may be formed with one curvature. According to various embodiments, the curved surface formed on the front surface of the convex region 410c may be formed with a plurality of curvatures, and may be formed such that the radius of curvature gradually decreases toward the end of the transparent member 400. Since the rear surface of the convex region 410c is formed in the same plane as the rear flat region 420a, the radius of curvature corresponding to the rear surface of the convex region 410c may be infinite.

As the convex region 410c moves away from the front flat region 410a, the amount of cutting increases, and the thickness d of the convex region 410c becomes thinner as it moves away from the flat regions 410a and 410b. The thickness d of the convex region 410c may be thinner than the thickness of the flat regions 410a and 410b.

According to various embodiments, the curved surface formed on the front surface of the convex region 410c may have a curvature radius R4 smaller than the curvature radii R1, R2, and R3 of the bending region 410b. The rear surface of the convex region 410c may have an infinite curvature radius.

FIG. 8A is a side view as seen from one end of the transparent member according to one embodiment, FIG. 8B is a cross-sectional view taken along the line 0-E1 of the transparent member of FIG. 8A, and FIG. 8C shows the transparent member of FIG. It is sectional drawing cut along E2, and FIG. 8B is sectional drawing which cut | disconnected the transparent member of FIG. 8A along 0-E3.

Referring to FIG. 8A, the machined area 411 of the convex area 410c at one end in the longitudinal direction of the transparent member decreases toward the transient area 410d from the area corresponding to the edge extending from the front flat area 410a. Can be.

In the region of the transparent member 400 corresponding to the flat region 410a, the processing region 411 of the transparent member 400 is cut or polished constantly, passing the transient region 410d, and the transparent member 400 The amount of processed can be reduced gradually. The transparent member 410 may be formed through a cutting or polishing process after the bending process and may be formed through a cutting or polishing process before the bending process. According to various embodiments, the area corresponding to the edge extending from the flat area 410a is processed to remove a predetermined thickness, and gradually decreases the amount of removal as it progresses to both vertices (transition area 410d). It can manufacture.

The above-described change in thickness can be explained by comparing the transparent member 400 with the drawings cut in the longitudinal direction of E1-0, E2-0, and E3-0.

8B shows the shape of the transparent member 400 at the boundary between the transient region 410d and the convex region 410c by cutting the transparent member 400 longitudinally along E1-O. Looking at the cut surface of E1-O, the transparent member 400 may include a front flat area 410a and a rear flat area 420a. The front flat area 410a and the rear flat area 420a may be disposed to face each other. An end portion in the longitudinal direction of the transparent member 400 may form a convex region 410c by a cutting process. According to various embodiments, the transparent member 400 may be formed at the boundary between the transient region 410d and the convex region 410c to have the same shape as the transparent member 400 in the convex region 410c. The thickness T1 of the end of the transparent member 400 at the boundary between the transient region 410d and the convex region 410c may be formed to be the same as the thickness d of the transparent member end (see FIG. 7B) in the convex region 410c. Can be.

8C shows the shape of the transparent member 400 in the transient area 410d by cutting the transparent member 400 along the E2-O in the longitudinal direction. The transparent member 400 in the transient area 410d may include a front bending area 410b and a rear bending area 420b. The front bending area 410b and the rear bending area 420d may have the same shape. According to various embodiments, a portion of the transparent member 400 may be removed from the front bending region 410b in the transient region 411d by a cutting or polishing process. The amount of transparent member 400 removed in the transient area 411d is less than the amount of transparent member 400 removed in FIG. 8B, and the end thickness T2 of the transparent member 400 is transparent in FIG. 8B. It is formed thicker than the end thickness T1 of the member 400.

8D shows the shape of the transparent member 400 obtained by cutting the transparent member 400 along the E3-O in the longitudinal direction. The transparent member 400 may include a front bending area 410b and a back bending area 420b. The front bending area 410b and the rear bending area 420b may have the same shape. Unlike the convex region 410c and the transient region 410d of FIGS. 8B and 8C, no or only a small amount of removed portion of the transparent member 400 can be removed. According to various embodiments, in the region corresponding to FIG. 8D, since there is little processing in the transparent member 400, the front bending area 410b and the rear bending area 420b may have substantially the same shape, and the front bending area The 410b and the rear bending area 420b may be disposed at the same interval.

9 is a flowchart illustrating a manufacturing process of the transparent member according to an embodiment, and FIG. 10 is a schematic diagram illustrating the manufacturing process of FIG. 9.

Referring to FIG. 9, the manufacturing process of the transparent member may include cutting at least two corner regions into curved surfaces (S910) and bending the remaining corner regions (S920).

Cutting step (S910) may be formed by cutting two corners in a curved surface. Through cutting,

According to various embodiments, the two corners to be cut may be opposite edges of the transparent member 1000 (the transparent member 400 of FIG. 4A). The two edges to be cut may correspond to the convex region 1010c (the convex region 410c of FIG. 4A). The convex region 1010c may be formed at an edge corresponding to the short edge of the transparent member 1000. Since the convex region 1010c cuts the entire surface of the transparent member 1000, the rear surface of the convex region 1010c may be formed flat.

According to various embodiments, the vertex region of the transparent member 1000 may be rounded. The vertex of the transparent member 1000 may be provided in a round shape before cutting, and the vertex of the transparent member 1000 may be formed in step S910 of forming the convex region 1010c of the transparent member 1000 through cutting. The area may be shaped to have a round shape.

In the bending molding step S920, the remaining edges of the transparent member 1000 may be bent to form a curved surface. According to various embodiments of the present disclosure, when three edges are cut, one edge to be bent may be one. If there are two cutting movable edges as shown in FIG. 10, the corners to be bent may be the remaining two edges facing each other.

According to various embodiments of the present disclosure, the finally formed transparent member 1000 may include a flat region 1010a disposed at the center (flat region 410a of FIG. 4A), a bending region 1010b formed at two opposite corners, and two remaining corners. It may include the convex region 1010c formed. The portion where the bending area 1010b and the convex area 1010c contact each other may include the transient area 1010d. The vertex area of the transparent member 1000 is rounded so that the transition area 1010d gradually increases in height from the bending area 1010b to the convex area 1010c, which is equal to the rear height of the flat area 1010a. Can be formed.

FIG. 11 is a flowchart illustrating a manufacturing process of a transparent member according to another exemplary embodiment, and FIG. 12 is a schematic diagram illustrating a manufacturing process of FIG. 11.

Referring to FIG. 11, according to another exemplary embodiment, a method of manufacturing a transparent member 1200 may include bending at least one corner region (S1110), and cutting the remaining corner region into a curved surface (S1120). Include.

In the bending molding operation S1110, the transparent member 1200 may be loaded in a mold, and the stacked transparent member 1200 may be pressed to form the bent transparent member 1200. The transparent member 1200 may include a flat region 1210a and a bending region 1210b. The bending area 1210b may be formed at the long edges of the transparent members 1200 facing each other and may extend from the flat area 1210a. The curved surface formed in the bending area 1210b may have the same shape as the front and rear surfaces thereof, and the thickness of the transparent member 1200 in the bending area 1210b may be maintained the same.

The transparent member 1200 loaded on the mold may be a transparent member 1200 having a vertex region rounded.

In the step of cutting (S1120), the remaining edge area of the bent transparent member 1200 may be formed in a curved surface. The front surface of the remaining corner region of the transparent member 1200 may form a convex region 1210c through cutting. Since the convex region 1210c cuts the entire surface of the transparent member 1200, the rear surface of the convex region 1210c may be formed flat. The convex region 1210c may be gradually formed in the thickness of the transparent member toward the edge from the flat region 1210a.

13A and 13B are front and rear perspective views of a transparent member according to various embodiments.

13A and 13B, the transparent member 1300 may include a flat region 1310a, a bending region 1310b, and a convex region 1310c.

The bending area 1310b may be formed to extend from one edge of the flat area 1310a. The bending area 1310b may be formed at one of the long edges of the transparent member 1300. The front bending area 1310b and the rear bending area 1320b may have substantially the same shape, and the thicknesses of the bending areas 1310b and 1320b may be kept constant. Bending regions 1310b and 1320b may be formed at one of the long edges of the flat region 1310a.

The bending area 1310b may be formed by pressing the transparent member 1300 loaded in the mold. The mold may include an upper mold and a lower mold, and the upper mold and the lower mold may be formed to correspond to the shape of the transparent member 1300 including the bending area 1310b.

The convex region 1310c may be formed in an edge region in which the bending region 1310b is not formed in the transparent member 1300. According to various embodiments, the convex region 1310c may be formed with the convex region 1310c in the remaining three corner regions in addition to the corner region where the bending region 1310b is formed. The convex region 1310c may cut or polish a portion of the front flat region 1310a to form a curved surface. The rear flat region 1320a does not mold the transparent member in the region corresponding to the convex region 1310c, and thus remains flat. Accordingly, the thickness of the transparent member may become thinner from the flat area 1310c toward the edge from the flat area 1310a.

The transparent member 1300 may include a transient region 1310d at a portion where the convex region 1310c and the bending region 1310b contact each other. The transition region 1310d is the rear surface of the transparent member 1310 at the boundary between the bending region 1310b and the transition region 1310d at the boundary of the convex region 1310c and the transition region 1310d at the height of the edge of the transparent member 1310. The height of the flat region 1320a may be increased.

The vertex region 1310e at the point where the edge where the convex region 1310c is formed may also be formed into a curved surface so as to be smoothly connected between the convex regions 1310c through a cutting or polishing process. Since the cutting or polishing process is formed at the front surface of the transparent member 1300 in the vertex region 1310e, the rear surface may be flat and the thickness may become thinner toward the vertex.

Hereinafter, a structure in which the transparent member 400 is mounted on the electronic device 100 will be described with reference to FIGS. 1 to 3.

The electronic device 100 may include a front plate 320, a display 330, a housing (eg, the back plate 380 of FIG. 3), and a side bezel structure 310 corresponding to the transparent member 400. .

The long edge of the front plate 320 may be bent and the short edge may be shaped to have a rounded shape by a cutting or polishing process. The bent long edge may be disposed to face the side bezel structure 310, and may be disposed below the flat surface of the front plate 320. The rounded short edge may be formed at the same height as the front plate 320 because the rear surface is flat.

The side bezel structure 310 may be formed to increase in height when progressing from a portion in contact with the long edge region to a portion in contact with the short edge region. The region of which the height of the side bezel structure changes may be formed in the same shape so as to contact the transient region (eg, the transient region 410d of FIG. 4) of the front plate 320.

The front plate 320 and the rear plate 380 may be disposed to face each other, and may be spaced apart by the side bezel structure 310 to form an inner space. The side bezel structure 310 may be in contact with the front plate 320 and the other side of the back plate 380.

The internal space formed by the front plate 320, the rear plate 380, and the side bezel structure 310 may mount the display 330, the printed circuit board 340, and the battery 370. According to various embodiments, the back plate 380 and the side bezel structure 310 may be integrally formed to be coupled to the front plate 320.

The curved glass according to the exemplary embodiment of the present disclosure (eg, the transparent member 400 of FIG. 4A) has a thickness, and a flat area (for example, the flat area 410a of FIG. 4A) having both surfaces thereof. And a plurality of edge areas (eg, edge areas 410b and 410c of FIG. 4A) extending from corners of the flat area and having one surface curved. At least one bending area (eg, bending area 410b of FIG. 4A), the other side being a curved surface of the same shape and extending from at least one corner of the flat area, the other surface being planar and At least one convex area (e.g., convex area 410c of FIG. 4A) extending from the edge adjacent to the at least one corner to be thinner, and a transient area disposed between the bending area and the convex area ( transition are a, for example, the transient region 410d of FIG. 4A).

In the curved glass according to the exemplary embodiment of the present disclosure, when one surface of the flat area is disposed upward, an extended edge of the bending area may face downward.

In the curved glass according to the embodiment of the present disclosure, the extended edge of the bending area may be disposed below the other surface of the convex area.

In the curved glass according to the exemplary embodiment of the present disclosure, the transient region may be formed to connect an extended edge of the bending region and an extended edge of the convex region in a curved line.

In the curved glass according to the embodiment of the present disclosure, the height of the transient area may be formed to gradually increase from the height of the extended edge of the bending area to the height of the other surface of the flat area.

In the curved glass according to the exemplary embodiment of the present disclosure, when the bending regions are two regions, each bending region may be symmetrically disposed from the central axis of the flat region.

In the curved glass according to the exemplary embodiment of the present disclosure, when the convex regions are two regions, each convex region may be symmetrically disposed from the central axis of the flat region.

In the curved glass according to the exemplary embodiment of the present disclosure, the bending area may have a smaller radius of curvature as it moves away from the central axis of the flat area.

In the curved glass according to the exemplary embodiment of the present disclosure, the curvature of the bending region may be different from the curvature of one surface of the convex region.

In the curved glass according to the exemplary embodiment of the present disclosure, the convex region may be formed by rounding an edge of the transparent member, and the transparent member in the transient region forms a smaller rounding toward the bending region. can do.

In an electronic device according to another embodiment of the present disclosure, a flexible display panel (eg, the display panel 101 of FIG. 1) composed of a plurality of pixels emitting light, and transmits the light to the outside and on the display A transparent member (for example, the transparent member 400 of FIG. 4) disposed, the transparent member includes a flat surface (for example, the flat region 410a of FIG. 4) that forms at least one surface of the electronic device, and A first bending surface extending from the first edge and the first edge of the flat surface (eg, the bending area 410b of FIG. 4), and a second bending extending from the second edge of the flat surface opposite to the first edge. 4 extending from a surface (eg, the bending region 410b of FIG. 4), a third edge of the flat surface, one end of the first bending surface, and one end of the second bending surface, and the extended upper surface is a curved first convex. Face (eg, convex region 410c in FIG. 4), and the fourth corner, top of the flat surface The first extending from the other end, and the other end of the second bending surface of the bending plane, the extended binary curved top surface the second convex surface (for example, may include a convex region (410c) of FIG.

In an electronic device according to an embodiment of the present disclosure, a housing (eg, the housing 110 of FIG. 1) forming at least a portion of a rear surface of the electronic device, and positioned between the housing and the transparent member, one side Is connected to the transparent member, and the other side is connected to the housing (eg, back plate 111 of FIG. 1) (eg, side bezel structure 118 of FIG. 1); The transparent member may be spaced apart from the side housing and form an inner space including a display panel therein.

In an electronic device according to an embodiment of the present disclosure, the curvature of the bending area may be different from the curvature of one surface of the convex area.

In an electronic device according to an embodiment of the present disclosure, the first and second bending surfaces may face the side housing.

In an electronic device according to an embodiment of the present disclosure, ends of the first and second bending surfaces may be disposed below ends of the first and second convex surfaces.

In the curved glass manufacturing method according to an embodiment of the present disclosure, preparing a glass sheet, the first corner of the glass sheet and the second corner opposite to the first corner symmetrical with respect to the central axis of the glass sheet Forming a convex surface, and forming a bending surface such that third and fourth corners positioned between the first and second corners of the glass sheet are symmetrical with respect to the central axis of the glass sheet. It may include.

In the manufacturing method according to an embodiment of the present disclosure, the forming of the convex surface may cut the first corner and the second corner region.

In the manufacturing method according to an embodiment of the present disclosure, the forming of the bending surface may include disposing the glass sheet having the convex surface formed on a lower mold, and pressing the upper mold on the glass sheet. It may include.

In the manufacturing method according to an embodiment of the present disclosure, the forming of the bending surface, wherein the lower mold is formed in a curved surface area corresponding to the first and second corners of the glass sheet, Can be bent.

Meanwhile, in the detailed description of the present disclosure, specific embodiments have been described, but various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

100: electronic device
110: housing
111: back plate
400: transparent member
410a: flat area
410b: bending area
410c: convex area
410d: transient area

Claims (20)

In curved glass having a thickness,
A flat area on which both surfaces are formed flat; And
And a plurality of edge areas extending from an edge of the flat area and having one surface curved.
The plurality of edge regions,
At least one bending area on both sides of the same shape and extending from at least one edge of the flat area,
At least one convex area which is planar and extends thinner from an edge adjacent to said at least one edge, and
Curved glass including a transition area disposed between the bending area and the convex area.
The method of claim 1,
If one side of the flat area is disposed upwards, the extended edge of the bending area faces downward.
The method of claim 2,
The extended edge of the bending area is disposed below the other surface of the convex area.
The method of claim 1,
The transition region curves the extended edge of the bending region with the extended edge of the convex region.
The method of claim 1,
The height of the transition region gradually increases from the height of the extended edge of the bending region to the height of the other surface of the flat region.
The method of claim 1,
Wherein the bending regions are two regions, each bending region is symmetrically disposed from a central axis of the flat region.
The method of claim 6,
If the convex regions are two regions, each convex region is disposed symmetrically from a central axis of the flat region.
The method of claim 1,
The curved area is curved glass, the radius of curvature decreases as it moves away from the central axis of the flat area.
The method of claim 1,
Curved glass different from the curvature of the bending region and one surface of the convex region.
The method of claim 1,
The convex region is formed by rounding one corner of the curved glass, wherein the curved glass in the transition region is formed round the rounded glass toward the bending area smaller.
In the electronic device,
A flexible display panel including a plurality of pixels emitting light; And
And a transparent member that transmits the light to the outside and is disposed on the display.
The transparent member,
A flat surface forming at least one surface of the electronic device,
A first bending surface extending from the first edge and the first corner of the flat surface;
A second bending surface extending from a second corner of the flat surface opposite the first corner,
A first convex surface extending from a third edge of the flat surface, one end of the first bending surface, and one end of the second bending surface, the extended upper surface being curved; and
And a second convex surface extending from a fourth edge of the flat surface, the other end of the first bending surface, and the other end of the second bending surface, and having an extended upper surface.
The method of claim 11,
A housing forming at least a portion of a rear surface of the electronic device; And
Located between the housing and the transparent member, one side is connected to the transparent member, the other side is connected to the housing; further includes,
The housing and the transparent member are spaced apart from the side housing and form an interior space including a display panel therein.
The method of claim 11,
The curvature of the first bending surface and the second bending surface is different from the curvature of the first convex surface and the second convex surface.
The method of claim 12,
And the first and second bent surfaces face the side housing.
The method of claim 14,
An end portion of the first and second bending surfaces is disposed below an end portion of the first and second convex surfaces.
The method of claim 11,
The curved surface glass of the said 1st bending surface and said 2nd bending surface becomes small, so that the distance from the central axis of the said flat surface becomes small.
In the manufacturing method,
Preparing a glass sheet;
Forming a convex surface symmetrical about a central axis of the glass sheet at a first corner of the glass sheet and a second corner opposite the first corner; And
And forming a bending surface such that third and fourth corners positioned between the first and second corners of the glass sheet are symmetrical with respect to the central axis of the glass sheet.
The method of claim 17,
The forming of the convex surface may include cutting the first edge and the second edge area.
The method of claim 18,
Forming the bending surface,
Disposing the glass sheet having the convex surface formed on a lower mold, and pressing the upper mold on the glass sheet.
The method of claim 19,
The forming of the bending surface may include forming a lower surface of the lower mold on a curved surface of a region corresponding to the first and second edges of the glass sheet, and pressing the upper mold on the glass sheet.

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