CN113315855A

CN113315855A - Folding screen assembly, manufacturing method thereof and electronic device

Info

Publication number: CN113315855A
Application number: CN202010121355.1A
Authority: CN
Inventors: 贾玉虎
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2021-08-27
Anticipated expiration: 2040-02-26
Also published as: CN113315855B

Abstract

The application relates to a folding screen assembly, a manufacturing method thereof and an electronic device. The folding screen assembly comprises a display screen and a supporting piece superposed on one side of the display screen, wherein the display screen comprises a display main body and a curved surface display part connected to at least one edge of the display main body. The display main body has a flexible display portion and can be folded or unfolded with respect to the flexible display portion. The curved surface display part is bent relative to the display main body, and the supporting piece comprises a supporting main body attached to the display main body and an arc-shaped supporting part connected to the supporting main body and attached to the curved surface display part. The edge of foretell folding screen subassembly is equipped with the curved surface display portion of curved surface form, and electronic equipment's screen accounts for than relatively higher, and supports the display main part of display screen with the help of support piece's support main part, and the curved surface display portion is supported to the arc supporting part, can guarantee that folding screen subassembly has higher structural stability.

Description

Folding screen assembly, manufacturing method thereof and electronic device

Technical Field

The present application relates to the field of consumer electronics, and more particularly, to a foldable screen assembly, a method of manufacturing the same, and an electronic device.

Background

With the development and progress of science and technology, the communication technology has been developed rapidly and greatly, and with the improvement of the communication technology, the popularization of intelligent electronic products has been improved to an unprecedented level, and more intelligent terminals or electronic devices become an indispensable part of the life of people, such as smart phones, smart televisions, computers and the like.

While the electronic devices are popularized, users have higher and higher requirements for the display area of the electronic devices, and foldable electronic devices with larger display screens have come into play. However, because the display screen of the foldable electronic device is usually prepared by the flexible display module, in order to fix the flexible display module, people can utilize the frame of the foldable electronic device to coat and fix the flexible display module, so that the frame of the foldable electronic device is relatively thick, and the screen of the whole electronic device still occupies relatively low space.

Disclosure of Invention

The embodiment of the application provides a folding screen assembly, a manufacturing method thereof and electronic equipment.

In a first aspect, embodiments of the present application provide a folding screen assembly. The folding screen assembly comprises a display screen and a supporting piece superposed on one side of the display screen, wherein the display screen comprises a display main body and a curved surface display part connected to at least one edge of the display main body. The display main body has a flexible display portion and can be folded or unfolded with respect to the flexible display portion. The curved surface display part is bent relative to the display main body, and the supporting piece comprises a supporting main body attached to the display main body and an arc-shaped supporting part connected to the supporting main body and attached to the curved surface display part.

In a second aspect, an embodiment of the present application further provides an electronic device, which includes a foldable housing assembly and the foldable screen assembly, where the foldable screen assembly is covered on the foldable housing assembly.

In a third aspect, an embodiment of the present application further provides a method for manufacturing a folding screen assembly, including the steps of: placing a support piece on a support mould, wherein the support piece comprises a support main body and an arc-shaped support part connected to the support main body, and the support mould is provided with an arc-shaped support structure suitable for bearing the arc-shaped support part; overlapping the display screen on one side of the support piece, which is far away from the support mould, wherein the display screen is a planar flexible display screen; pressing a pressing mold on one side of the display screen, which is far away from the support piece, wherein the pressing mold is provided with a cambered surface pressing structure capable of being embedded with the cambered surface support structure; and when the pressure maintaining is carried out on the pressing mold for a preset time, the display screen forms a display main body and a curved surface display part connected with the display main body under the extrusion of the pressing mold and the supporting mold, the display main body is attached to the main supporting part, and the curved surface display part is attached to the arc-shaped supporting part.

In the electronic equipment and folding screen subassembly thereof that this application provided, at least one edge of its demonstration main part is equipped with the curved surface display part of curved surface form, and when folding screen subassembly and electronic equipment's casing joint, curved surface display part can blank traditional folding screen subassembly installation required "black border" remarkably, has improved the screen of foldable electronic equipment and has accounted for the ratio. Furthermore, in the folding screen assembly, the support main body and the arc-shaped support part of the support piece are used for supporting the display main body and the curved surface display part of the display screen respectively, so that the folding screen assembly is guaranteed to have higher structural stability.

Drawings

In order to more clearly illustrate the technical solution of the application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of an electronic device provided in an embodiment of the present application.

Fig. 2 is a cross-sectional schematic view of the folded screen assembly of the electronic device of fig. 1 in a flattened state.

Fig. 3 is a perspective view of the electronic device shown in fig. 1 in a partially unfolded state.

Fig. 4 is an exploded view of the folding screen assembly of fig. 2.

Fig. 5 is an enlarged schematic view of region IV of the folding screen assembly shown in fig. 3.

Fig. 6 is an enlarged schematic view of an alternate construction of the folding screen assembly shown in fig. 4.

Fig. 7 is an enlarged schematic view of yet another alternate construction of the folding screen assembly shown in fig. 4.

Fig. 8 is a cross-sectional schematic view of another configuration of the folding screen assembly of the electronic device of fig. 1 in a flattened state.

Fig. 9 is an exploded view of the folding screen assembly of fig. 8.

Fig. 10 is an assembly view of the folding screen assembly of fig. 8 with a housing side structure of an electronic device.

Fig. 11 is an assembly view of the folding screen assembly of fig. 8 with structure on the other side of the housing of the electronic device.

Fig. 12 is a schematic flow chart illustrating a method for manufacturing a folding screen assembly according to an embodiment of the present application.

Fig. 13 is a schematic view of a process for forming a support member of the folding screen assembly in the manufacturing method of fig. 12.

Fig. 14 is a schematic view of a first attachment process for the folded screen assembly of the manufacturing method of fig. 12.

Fig. 15 is a schematic view of a second attachment process for the folded screen assembly of the manufacturing method of fig. 12.

Fig. 16 is a functional block diagram of an electronic device provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As used in embodiments herein, an "electronic device" includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal", an "electronic apparatus", and/or an "electronic device". Examples of electronic devices include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; as well as conventional laptop and/or palmtop receivers, gaming consoles, or other electronic devices that include radiotelephone transceivers. The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

Referring to fig. 1, the present embodiment provides an electronic device 200 having a foldable screen assembly 100, where the electronic device 200 may be, but is not limited to, an electronic device such as a mobile phone, a tablet computer, a game console, and the like. The electronic device 200 of the present embodiment is illustrated by taking a mobile phone as an example, and the folding screen assembly 100 is located on a surface of the electronic device 200 to provide a human-computer interaction interface for a user.

The electronic device 200 includes a foldable housing assembly 201, a foldable screen assembly 100, and an electronic assembly (not shown in the figure) disposed in the foldable housing assembly 201, wherein the foldable screen assembly 100 is covered on the foldable housing assembly 201. The foldable housing assembly 201 is used to carry the foldable screen assembly 100 while protecting the electronic components. It should be noted that, in the present specification, when an element is referred to as being "disposed on" another element, it can be connected to or directly disposed on the other element, or intervening elements may also be present; when a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The foldable housing assembly 201 includes a first housing 2011, a second housing 2013 and a hinge mechanism 2015, wherein the first housing 2011 and the second housing 2013 are respectively connected to two sides of the hinge mechanism 2015. Second casing 2013 can be through pivot mechanism 2015 folding or expand relative first casing 2011, makes foldable housing assembly 201 drive folding screen subassembly 100 fold or expand, and when foldable housing assembly 201 and folding screen subassembly 100 were the coincide form, electronic equipment 200's volume was less relatively, is convenient for accomodate and carry.

The electronic component includes a first electronic module, a second electronic module, and a flexible printed circuit board, the first electronic module is disposed in the first housing 2011, the second electronic module is disposed in the second housing 2013, and the flexible printed circuit board is electrically connected to the first electronic module and the second electronic module, respectively. Further, the first electronic module can be a mainboard, and a central processing unit, a memory, an antenna, a camera, a handset and the like arranged on the mainboard. The second electronic module can also be composed of a printed circuit board and a functional module arranged on the printed circuit board, the second electronic module is different from the first electronic module, and the second electronic module can comprise a battery, a connector, a fingerprint module and the like.

The folding screen assembly 100 is covered with a foldable housing assembly 201. Further, the folding screen assembly 100 is laid on the first housing 2011, the pivot mechanism 2015 and the second housing 2013. In the present embodiment, the folding screen assembly 100 has a flexible portion that can be bent, and the folding screen assembly 100 can be folded or unfolded as the first housing 2011 and the second housing 2013 are turned over. The folding screen assembly 100 is electrically connected to the electronic assembly to enable the electronic assembly to control the display content of the folding screen assembly 100 and to obtain interactive information via the folding screen assembly 100.

Referring to fig. 2, in the present embodiment, the foldable screen assembly 100 includes a display screen 10 and a supporting member 30, wherein the supporting member 30 is stacked on one side of the display screen 10. Further, the display screen 10 is a flexible display module, and the supporting member 10 is stacked on the non-display side of the display screen 10, and is used for supporting the display screen 10 to prevent the display screen from being deformed easily, thereby being beneficial to ensuring the structural stability of the foldable screen assembly 100.

In the present embodiment, the display screen 10 is an Active Matrix Organic Light Emitting Diode (AMOLED) display screen. The AMOLED display screen is a self-luminous display screen, and a Back Light Module (BLM) is not required. Therefore, when the substrate in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display screen can have a bendable characteristic.

The display screen 10 includes a display main body 12 and a curved display section 13. The display main body 12 has a flexible portion so that it can be folded or unfolded with respect to the flexible portion. The curved display unit 13 is connected to at least one edge of the display main body 12, and is curved with respect to the display main body 12, so that the display screen 10 has a curved edge, and thus, the smoothness of the structure of the electronic apparatus 200 can be improved. In the embodiment of the present application, the curved display part 13 may be connected to one edge, two edges, or more than two edges of the display main body 12, and is not limited by the present specification, for example, when the display main body 12 is substantially rectangular in a flattened state, and has four edges, the curved display part 13 may be connected to one or more of the four edges. The following embodiment will be described by taking an example in which the curved surface display portion 13 is connected to both edges.

In the present embodiment, the curved display section 13 includes a first curved surface section 14 and a second curved surface section 16 provided at opposite ends of the display main body 12, and both the first curved surface section 14 and the second curved surface section 16 are curved with respect to the display main body 12. The display main body 12 can be folded and unfolded with the foldable housing assembly 201 to move the first curved surface portion 14 and the second curved surface portion 16 away from or close to each other. When the display main body 12 is in the flat state, it is substantially planar, and the first curved surface portion 14 and the second curved surface portion 16 are bent toward the same side with respect to the planar display main body 12, so that the display screen 10 has a curved edge, thereby improving the smoothness of the structure of the electronic apparatus 200.

Referring to fig. 3, in the present embodiment, the display main body 12 includes a first plane portion 121, a second plane portion 123 and a flexible display portion 125. The first curved surface portion 14 is connected to the first flat portion 121, the second curved surface portion 16 is connected to the second flat portion 124, and the flexible display portion 125 is connected between the first flat portion 121 and the second flat portion 123. When the foldable screen assembly 100 is attached to the foldable housing assembly 201, the first planar portion 121 overlies the first housing 2011, the second planar portion 123 overlies the second housing 2013, and the flexible display 125 generally corresponds to the location of the hinge mechanism 2015. The first and second

flat portions

121 and 123 can be folded or unfolded relatively to the first and

second cases

2011 and 2013, respectively, and the flexible display 125 can be folded or unfolded along with the folding or unfolding of the first and second

flat portions

121 and 123.

In other embodiments, the first flat portion 121, the second flat portion 123, the flexible display portion 125, the first curved portion 14, and the second curved portion 16 may be a unitary structure, such that the foldable screen assembly 100 is a one-piece flexible display screen; alternatively, the first curved surface portion 14, the second curved surface portion 16, and the flexible display portion 125 may be flexible portions that can be bent, and the first and second

flat surface portions

121 and 123 may be non-flexible portions, and the first and second

flat surface portions

121 and 123 are relatively folded or unfolded by the flexible display portion 125.

In this embodiment, when the first housing 2011 and the second housing 2013 are overlapped, the first flat part 121 and the second flat part 123 are separated from each other, the flexible display part 125 faces the outside and is approximately located at a side portion of the folded electronic device 200, so that the electronic device 200 is in a folded screen structure, a user can also observe the display content of the folded screen assembly 100 under the condition of folding, the electronic device 200 has high convenience, and the first curved part 14 and the second curved part 16 are located at the outer side edge of the electronic device 200, which is beneficial to improving the holding hand feeling of the electronic device 200. It can be understood that when the first housing 2011 and the second housing 2013 are overlapped, the first plane portion 121 and the second plane portion 123 may also be overlapped relatively, and the flexible display portion 125 is folded and is accommodated inside the folded electronic device 200, so that the electronic device 200 is in a folded screen structure, and the folded screen assembly 100 is prevented from being damaged by scratching.

It should be understood that the above-mentioned names of the first plane portion, the second plane portion, the flexible display portion, the first curved surface portion and the second curved surface portion are only provided for convenience of description, and are not meant to be structural limitations of the foldable screen, and in a practical application scenario, the first plane portion, the second plane portion, the flexible display portion, the first curved surface portion and the second curved surface portion may have no distinct boundaries, or the foldable screen may be present in other division structures, for example, the foldable screen may include a first plane portion and a second plane portion connected to the first plane portion, and the first plane portion and the second plane portion may be relatively rotated to be folded or unfolded.

In the electronic device 200 provided in the embodiment of the present application, the electronic device 200 includes the first housing 2011 and the second housing 2013 that are foldable with respect to each other, and the corresponding first planar portion 121 and the second planar portion 123, so that the electronic device 200 is presented as a two-fold electronic device that can be folded in half. It is understood that the electronic device 200 may further include a third housing and a corresponding third planar portion (not shown in the drawings), one side of the third housing is rotatably connected to the first housing 2011, the other side of the third housing is rotatably connected to the second housing 2013, the third planar portion is laid on the third housing and connected between the first planar portion 121 and the second planar portion 123, at this time, the first housing 2011 and the second housing 2013 may both rotate relative to the third housing, and both the first planar portion 121 and the second planar portion 123 may be folded relative to the third planar portion, so that the electronic device 200 is presented as a three-fold electronic device capable of performing a second folding. It is understood that the third housing and the third flat portion thereon may be disposed at other positions, for example, the third housing may be rotatably connected to the side of the first housing 2011 away from the second housing 2011, or the third housing may be rotatably connected to the side of the second housing 2013 away from the first housing 2011. It can also be understood that the electronic device 200 may further include more housings and display portions, so that the electronic device 200 is an electronic device with a multi-fold structure, and thus, on the premise of ensuring that the electronic device 200 has a larger display area, the electronic device has a smaller storage volume, which is beneficial to storing and carrying the electronic device 200.

Referring to fig. 2 again, in the present embodiment, the supporting member 30 is attached to the non-display side of the display screen 10, and a transparent optical adhesive may be disposed between the supporting member 30 and the display screen 10 to firmly combine the two. The supporting member 30 has a supporting structure corresponding to the display screen 10 to provide a reliable fixing and supporting of the display screen 10. Further, the support 30 may be stamped from metal or hot-bent from glass. For example, the material of the supporting member 30 may be copper alloy, aluminum alloy, stainless steel, titanium alloy, magnesium alloy, zinc alloy, or liquid metal, so that the supporting member 30 has high rigidity, high thermal conductivity, and light weight.

In the present embodiment, the supporting member 30 includes a supporting body 32 and an arc supporting portion 33, the supporting body 32 is attached to the display body 12, and the arc supporting portion 33 is connected to the supporting body 32 and attached to the curved display portion 13.

Further, referring to fig. 4, in the present embodiment, the arc supporting portion 33 includes a first arc portion 34 and a second arc portion 36, and the first arc portion 34 and the second arc portion 36 are respectively disposed at two opposite ends of the supporting body 32 and are both bent relative to the supporting body 32. Further, the first curved portion 34 is attached to the first curved surface portion 14, and the second curved portion 36 is attached to the second curved surface portion 16.

Further, the support main body 32 includes a third plane part 321 and a fourth plane part 323. The third plane portion 321 is substantially flat and attached to the first plane portion 121 of the display screen 10 for supporting the first plane portion 121, and the first arc portion 34 is connected to the third plane portion 321. The fourth flat portion 323 is substantially flat, and is attached to the second flat portion 123 of the display screen 10 to support the second flat portion 123, and the second arc portion 36 is connected to the fourth flat portion 323.

Referring to fig. 5, in the present embodiment, the third plane portion 321 is spaced apart from the fourth plane portion 323. Further, the supporting member 30 further includes a flexible connecting portion 325, and the flexible connecting portion 325 is located at a position of the supporting member 30 corresponding to the flexible display portion 125 and is connected between the third plane portion 321 and the fourth plane portion 323. The flexible display portion 325 is attached to the flexible display portion 125 to provide support for the flexible display portion 125, and prevent the flexible display portion 125 from collapsing or arching and deforming after repeated folding. Further, the elastic modulus of the flexible connection portion 325 is smaller than the elastic modulus of other portions of the support member 30, for example, the elastic modulus of the flexible connection portion 325 is smaller than the elastic modulus of the third flat portion 321 or the fourth flat portion 323. Thus, on the premise of taking into account the firm support of the first plane part 121 and the second plane part 123 of the display screen 10, the overall bending performance of the support member 30 can be improved, so that the folding process of the electronic device 200 is smoother.

It should be noted that the above-mentioned "elastic modulus" can be understood as a general physical concept, which is a measure of the magnitude of the object's ability to resist elastic deformation. In general, the bonding mode, crystal structure, chemical composition, microstructure, temperature, etc. of an object or material may affect the magnitude of the elastic modulus. For objects made of metal, their elastic modulus differs depending on alloy composition, heat treatment state, cold plastic deformation, and the like. For objects made of ordinary non-metals and metals, the cross-sectional shape and area used to carry the load will affect the magnitude of the modulus of elasticity. Different elastic moduli are designed for different parts of the supporting member 30, so that different parts of the supporting member have different elastic deformation capacities, and the folding and supporting requirements of the folding display screen assembly 100 can be met.

The embodiments of the present application provide various solutions to control the elastic modulus of the flexible connection portion 325 to be smaller than that of other portions of the supporting member 30, for example, different materials or different processing techniques are selected to prepare the flexible connection portion 325 and other portions of the supporting member 30, but the embodiments illustrated in the present application should not be limited thereto.

For example, in some embodiments, as shown in fig. 5, the supporting member 30 may be integrally formed as a connecting structure, and the thickness of the flexible connecting portion 325 is smaller than the thickness of other portions of the supporting member 30, such as the thickness of the third flat portion 31 or the fourth flat portion 323, so that the elastic modulus of the flexible connecting portion 325 is smaller than the elastic modulus of other portions of the supporting member 30, and the flexible connecting portion 325 is more prone to elastic deformation than other portions.

For another example, in some embodiments, as shown in fig. 6, the support member 30 may be integrally formed as a connecting structure, and the flexible connecting portion 325 is formed with various microstructures to reduce its elastic modulus. Specifically, it is understood that the flexible connection portion 325 has a plurality of concave structures or/and a plurality of hollow structures, so that the flexible connection portion 325 is more easily elastically deformed than other portions. The recessed structures and the hollow structures may be formed in various ways, for example, a part of the material on the flexible connection portion 325 may be removed by CNC processing to form the recessed or hollow structures, or a recessed or hollow microstructure may be formed on the flexible connection portion 325 by an etching process, which is not described in detail in this specification.

For another example, in other embodiments, as shown in fig. 7, the supporting member 30 is a split structure, the third plane portion 321 and the fourth plane portion 323 are disposed at a distance from each other, and the flexible connecting portion 325 is omitted, so that the supporting body 32 is in an empty state at a position between the third plane portion 321 and the fourth plane portion 323, and thus, the supporting member 30 can be prevented from being excessively limited by materials to perform the folding operation of the electronic apparatus 200. It should be noted that, in the present embodiment, the above-mentioned "vacant state" should not be limited to a state where no material is disposed at the position, but should be understood as a state where the hollowed-out area of the supporting member 30 at the position between the third plane portion 321 and the fourth plane portion 323 is much larger than the non-hollowed-out area (for example, the area ratio of the two is greater than or equal to 3: 1). Specifically, the "vacant state" described above may include any one of the following specific examples: the support 30 is not provided with any material at a position between the third flat surface portion 321 and the fourth flat surface portion 323; the third plane portion 321 and the fourth plane portion 323 can be connected by one or more connecting strips, and when there are a plurality of connecting strips, the connecting strips are arranged at intervals along the axial direction of the rotating shaft mechanism 2015; most of the material of the support member 30 at a position between the third and fourth

flat portions

321 and 323 is removed, and the ratio of the hollowed area to the remaining material area is greater than or equal to 10: 1.

Further, referring to fig. 8 and 9, in some embodiments, the foldable screen assembly 100 further includes a cover plate 50, the cover plate 50 is disposed on a side of the display screen 10 away from the supporting member 30, and a transparent optical adhesive may be disposed between the cover plate 50 and the display screen 10 to firmly bond the two. The cover plate 50 has a curved structure that fits the first curved surface portion 121 and the second curved surface portion 123, so as to provide reliable protection for the display screen 10. Specifically, in the embodiment of fig. 8, the cover plate 50 includes a cover plate main body 52, a first arc portion 54 and a second arc portion 56, wherein the first arc portion 54 and the second arc portion 56 are respectively disposed at two opposite ends of the cover plate main body 52, and are both bent relative to the cover plate main body 52. Further, the cover main body 52 is attached to the display main body 12, the first curved surface portion 54 is attached to the first curved surface portion 14, and the second curved surface portion 56 is attached to the second curved surface portion 16.

Referring to fig. 10, when the foldable screen assembly 100 is mounted on the housing 201, the end of the foldable screen assembly 100 is joined to the end surface of the foldable housing assembly 201, so that the electronic device 200 has an arc edge, and the structure is smoother, which is beneficial to improving the holding feeling of the electronic device 100. For example, the foldable housing assembly 201 may be provided with a receiving end surface, and the end of the foldable screen assembly 100 may be provided with an engaging end surface facing generally opposite to the display surface of the display main body 12, and the engaging end surface is disposed adjacent to the curved display portion 13 and engages with the receiving end surface.

Further, referring to fig. 10, the foldable screen assembly 100 may have a first end surface 1001, the first end surface 1001 is located at one end of the foldable screen assembly 100, and the orientation of the first end surface 1001 is opposite (e.g., opposite or substantially opposite) to the orientation of the display surface of the display main body 12. The first end surface 1001 is adjacent to the first curved surface portion 14 and engages with an end of the first housing 2011. So that the outer contour of the foldable screen assembly 100 substantially covers the outer contour of the foldable housing assembly 200 when the electronic device 200 is projected toward its rear case along the thickness direction thereof. Thus, the curved surface portion of the foldable screen assembly 100 can substantially cover the edge of the foldable housing assembly 201, so that the electronic device 200 has a smooth curved surface edge structure, which is beneficial to improving the technical feeling of holding hand feeling and appearance. In the embodiment of the present application, the first end surface 1001 may be located at an end of the cover plate 50, an end of the display screen 10, or an end of the support 30, which is not limited in the specification of the present application.

Further, the first housing 2011 may be an integrally formed structure, which may be structurally divided into a carrying portion 2031 and a frame 2033 surrounding the carrying portion 2031. It should be understood that the designations of the "carrying portion" and the "frame" are merely used for convenience of description, and there may be no clear dividing line between the two, and the designations of the "carrying portion" and the "frame" should not limit the structure of the first housing 2011 for assembling two or more components. The bearing portion 2031 is used to bear a part of the structure of the display main body 12, and may also be used to bear or mount electronic components of the electronic apparatus 200. The bezel 2033 has a first engagement end surface 2035, and the orientation of the first engagement end surface 2035 is substantially the same as the orientation of the display surface of the display main body 12. The first end surface 1001 of the folding screen assembly 100 is located at the end of the cover plate 50, and the first end surface 1001 covers the first joint end surface 2035. Further, the first joint end surface 2035 may be provided with a glue receiving groove (not shown), an adhesive (not shown) is provided in the glue receiving groove, and the first end surface 1001 is connected to the first joint end surface 2035 by the adhesive.

Accordingly, referring to fig. 11, the foldable screen assembly 100 may further include a second end 1003, where the second end 1003 is located at the other end (e.g., the end away from the first end 1001) of the foldable screen assembly 100, and the orientation of the second end 1003 is opposite (e.g., opposite or substantially opposite) to the orientation of the display surface of the display main body 12. The second end surface 1003 is adjacent to the second curved surface portion 16 and is connected to an end of the second housing 2013, so that when the electronic device 200 is projected to a back shell of the electronic device along a thickness direction of the electronic device, an outer contour of the foldable screen assembly 100 can substantially cover an outer contour of the foldable housing assembly 200. In the embodiment of the present application, the second end 1003 may be located at an end of the cover plate 50, an end of the display screen 10, or an end of the support 30, which is not limited in the present application.

Further, the second housing 2013 includes a bearing portion 2051 and a frame 2053 surrounding the bearing portion 2051, and the bearing portion 2051 and the frame 2053 may be an integrally formed structure. The bearing portion 2051 is used for bearing a part of the structure of the display main body 12. The bezel 2053 has a second engagement end surface 2055, and the orientation of the second engagement end surface 2055 is substantially the same as the orientation of the display surface of the display main body 12. The second end 1003 of the folding screen assembly 100 is located at the end of the cover 50, and the second end 1003 covers the second engagement end 2055. Further, the second engagement end surface 2055 may be provided with a glue containing groove (not shown), an adhesive (not shown) is provided in the glue containing groove, and the second end surface 1003 is connected to the second engagement end surface 2055 by the adhesive.

Further, in some embodiments, the folding screen assembly 100 further includes a flexible circuit board 70, the flexible circuit board 70 is located substantially between the supporting member 30 and the bearing

portions

2031, 2051, and the flexible circuit board 70 is used for electrically connecting the display screen 10 to a control board of the electronic device 100. The end of the flexible circuit board 70 connected to the display screen 10 is bent, and correspondingly, the bearing

portions

2031 and 2051 are provided with a space-avoiding groove (not shown) for accommodating the bent end of the flexible circuit board 70, so as to avoid squeezing the flexible circuit board 70 and facilitate heat dissipation. The avoiding groove is substantially disposed between the bearing

portions

2031, 2051 and the

frames

2033, 2035, and is recessed relative to the adjacent first or second

engagement end surface

2035, 2055. In the present embodiment, the end portion of the flexible circuit board 70 is bent to form an arc shape, but it is needless to say that the end portion of the flexible circuit board 70 may also be bent to form a semicircular shape or other possible bending shapes (for example, a U-shaped bending shape, a semicircular bending shape, a semi-elliptical bending shape, a T-shaped bending shape, etc.), which is not limited herein, so that the forward projection of the flexible circuit board 70 in the area where the flexible circuit board is located can be reduced, and the bottom black edge of the electronic device 200 can be reduced.

Referring to fig. 12, based on the above-mentioned foldable screen assembly, the present embodiment further provides a method for manufacturing a foldable screen assembly, which includes steps S101 to S107.

Step S101: the supporting part is arranged on a supporting mould, the supporting part comprises a supporting main body and an arc-shaped supporting part connected to the supporting main body, and the supporting mould is provided with an arc-shaped supporting structure suitable for bearing the arc-shaped supporting part.

As shown in fig. 13, a support die 501 having a contoured configuration is used to carry the support members, and the first and second

arcuate portions

34 and 36 of the support member 30 overlie the arcuate support structure of the support die 501. In some embodiments, the method further comprises a step of preparing the supporter before step S101. As shown in fig. 14, the step of preparing the supporter may include: providing a metal sheet 500, stamping the metal sheet 500 to form an arc-shaped support at least one edge of the metal sheet 500 to obtain the support 30. In some embodiments, where the support 30 is made of glass, the step of preparing the support may include: a glass sheet 500 is provided and the glass sheet 500 is hot bent to form an arc support at least one edge of the glass sheet 500, thereby obtaining a support 30.

Further, the thickness of the metal sheet 500 or the glass sheet 500 ranges from 0.08mm to 0.12mm, such as 0.1 mm.

Further, in some embodiments, after obtaining the support 30 described above, the step of preparing the support 30 may further include: removing at least a portion of the material at a location substantially in the middle of the support 30 provides the support 30 with any of the following configurations: the material of the substantially middle position of the support 30 is completely removed; a material is partially removed at a substantially middle position of the support member 30, a thickness of the support member 30 at the position being smaller than thicknesses at other positions; the material is partially removed from a substantially central portion of the supporting member 30, and the supporting member 30 has a plurality of recesses or/and cutouts at the central portion, so that the thickness at the central portion ranges from 0.02mm to 004mm, such as 0.03 mm. The recessed structures and the hollow-out structures can be formed in various ways, for example, a part of the material on the supporting member 30 can be removed by CNC processing to form the recessed or hollow-out structures, or a recessed or hollow-out microstructure can be formed on the supporting member 30 by etching.

Step S103: and overlapping the display screen on one side of the support piece, which deviates from the support mould, wherein the display screen is a planar flexible display screen.

In this embodiment, as shown in fig. 13, the display screen 10 is still planar, and the non-display side of the display screen 10 is provided with an optical adhesive for adhering to the supporting member 30. Further, the display side of the display screen 10 may also be provided with a cover plate 50.

Step S105: and pressing the pressing mold on one side of the display screen, which is away from the support piece, wherein the pressing mold is provided with a cambered surface pressing structure which can be embedded with the cambered surface support structure.

As shown in fig. 13 and fig. 15, in some embodiments, a first pressing mold 503 is first used to press the planar portion of the display screen 10, wherein the pressing surface of the first pressing mold 503 is a plane. And then, the second pressing mold 505 is used to press the whole structure of the display screen 10, wherein the pressing surface of the second pressing mold 505 has an arc pressing structure capable of being engaged with the arc supporting structure of the supporting mold 501, and the display screen 100 can be attached to the first arc part 34 and the second arc part 36 of the supporting member 30 through the arc pressing structure. Therefore, the flat part of the display screen 10 is pressed firstly, and then the curved part is pressed, which is beneficial to improving the yield of pressing. In some embodiments, the second pressing mold 505 may also be directly used to press the entire structure of the display screen 10, so as to simultaneously attach the planar and curved structures of the display screen 10 to the supporting member 30, thereby saving the process flow.

Step S107: the pressure maintaining is carried out on the pressing mold for a preset time, so that the display screen forms a display main body and is connected to the curved surface display part of the display main body under the extrusion of the pressing mold and the supporting mold, the display main body is attached to the main supporting part, and the curved surface display part is attached to the arc-shaped supporting part.

When the folding screen component is jointed with the shell of the electronic device, the curved display part can obviously blank the black edge of the traditional folding screen component, and the screen occupation ratio of the foldable electronic device is improved. Furthermore, in the folding screen assembly, the first curved surface part and the second curved surface part of the display screen are respectively supported by the first arc-shaped part and the second arc-shaped part of the supporting piece, so that the folding screen assembly can be guaranteed to have higher structural stability.

Referring to fig. 16, in an actual application scenario, the electronic device 200 provided in the embodiment of the present application may be used as a smartphone terminal, in which case, the electronic device 200 generally further includes one or more (only one shown in fig. 16) of the following components: a processor 102, a memory 104, a capture module 108, an audio circuit 110, an input module 118, a power module 122, and one or more applications, wherein the one or more applications may be stored in the memory 104 and configured to be executed by the one or more processors 102. It will be understood by those skilled in the art that the structure shown in fig. 16 is merely illustrative and is not intended to limit the structure of the electronic device 200. For example, electronic device 200 may also include more or fewer components than shown in FIG. 16, or have a different configuration than shown in FIG. 16.

The shooting module 108 may be a camera, which is disposed on the foldable housing assembly 201 and is used for performing shooting tasks, such as taking pictures, videos, or making video phone calls. The audio circuitry 110, speaker 101, sound jack 103, microphone 105 collectively provide an audio interface between a user and the electronic device 200. In this embodiment, the input module 118 may include the physical keys 107, the touch screen 109 disposed on the foldable screen assembly 100, and the like, and the touch screen 109 may collect touch operations of the user on or near the touch screen 109 (e.g., operations of the user on or near the touch screen 109 using any suitable object or accessory such as a finger, a stylus, and the like) and drive the corresponding connection device according to a preset program.

The folding screen assembly 100 is used to display information input by a user, information provided to the user, and various graphical user interfaces of the electronic device 200, which may be composed of graphics, text, icons, numbers, video, and any combination thereof, and in one example, the touch screen 109 may be provided on the folding screen assembly 100 so as to be integral with the folding screen assembly 100.

The power module 122 is used to provide a supply of power to the processor 102 and other components. In particular, the power module 122 may include a power management device, one or more power sources (e.g., batteries or ac power), a charging circuit, a power failure detection circuit, an inverter, a power status indicator light, and any other components associated with the generation, management, and distribution of power within the electronic assembly or the folding screen assembly 100.

It should be understood that the electronic device 200 described above is not limited to a smartphone terminal, but it should refer to a computer device that can be used in mobile. Specifically, the electronic device 200 is a mobile computer device equipped with an intelligent operating device, and the electronic device 200 includes, but is not limited to, a smart phone, a smart watch, a notebook, a tablet computer, a POS device, and even a vehicle-mounted computer.

In this specification, particular features or characteristics described may be combined in any one or more embodiments or examples as appropriate. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A folding screen assembly comprising a display screen and a support member overlying one side of the display screen, the display screen comprising:

a display main body having a flexible display portion, the display main body being foldable or unfoldable with respect to the flexible display portion; and

a curved display part connected to at least one edge of the display main body and bent with respect to the display main body;

the support member includes:

the supporting body is attached to the display body; and

and the arc-shaped supporting part is connected with the supporting main body and is attached to the curved surface display part.

2. The foldable screen assembly of claim 1, wherein the curved display portion comprises a first curved portion and a second curved portion, the first curved portion and the second curved portion being connected to opposite ends of the display body, respectively; the arc supporting part comprises a first arc part attached to the first curved surface part and a second arc part attached to the second curved surface part.

3. The folding screen assembly of claim 2, wherein the display body further comprises a first planar portion and a second planar portion, the flexible display portion being connected between the first planar portion and the second planar portion; the first curved surface part is connected to the first flat surface part, and the second curved surface part is connected to the second flat surface part; the support body includes a third flat portion attached to the first flat portion and a fourth flat portion attached to the second flat portion.

4. The folding screen assembly of claim 3 wherein said third planar portion and said fourth planar portion are spaced apart from one another.

5. The folding screen assembly of claim 4 wherein the support body further comprises a flexible connecting portion connected between the third planar portion and the fourth planar portion, the flexible connecting portion having a modulus of elasticity less than the modulus of elasticity of the third planar portion.

6. The folding screen assembly of claim 5, wherein a thickness of the flexible connecting portion is less than a thickness of the third planar portion.

7. The folding screen assembly of claim 5, wherein the flexible connecting portion has a plurality of indentations or/and a plurality of cutouts.

8. The folding screen assembly of claim 5, wherein the support member is stamped from metal or hot-bent from glass.

9. The foldable screen assembly of any one of claims 1 to 8, further comprising a cover plate covering a side of the display screen facing away from the support member, the cover plate having a curved structure conforming to the curved display portion.

10. An electronic device comprising a foldable housing assembly and the foldable screen assembly of any one of claims 1 to 9, wherein the foldable screen assembly is covered on the foldable housing assembly.

11. The electronic device of claim 10, wherein the foldable housing assembly has a receiving end face, an end of the foldable screen assembly is provided with an engaging end face, and the engaging end face faces away from an orientation of a display face of the display body; the joint end surface is adjacent to the curved display part and is jointed with the bearing end surface of the foldable shell component.

12. A method of manufacturing a folding screen assembly, comprising the steps of:

placing a support member on a support mold, wherein the support member comprises a support main body and an arc-shaped support part connected to the support main body, and the support mold is provided with an arc-shaped support structure suitable for bearing the arc-shaped support part;

overlapping a display screen on one side of the supporting piece, which is far away from the supporting mould, wherein the display screen is a planar flexible display screen;

pressing a pressing mold on one side of the display screen, which is far away from the support piece, wherein the pressing mold is provided with an arc surface pressing structure capable of being embedded with the arc surface support structure; and

it is right when compression molding utensil keeps pressure and predetermines, make the display screen be in compression molding utensil reaches support the extrusion of mould down form the display main part and connect in the curved surface display part of display main part, just the display main part laminate in the main tributary supporting part, curved surface display part laminate in the arc supporting part.

13. The method of manufacturing a folding screen assembly of claim 12, wherein the support member is placed before the support mold, the method further comprising: stamping a metal sheet to form an arc-shaped support at least one edge of said metal sheet to obtain said support.

14. The method of manufacturing a folding screen assembly of claim 12, wherein the display body has a flexible display portion; after obtaining the support, the method further comprises: removing at least part of the material at the part of the support corresponding to the flexible display part to enable the support to have any one of the following structures:

the material of the part of the support corresponding to the flexible display part is completely removed;

material of a part of the support corresponding to the flexible display part is partially removed, and the thickness of the support at the position is smaller than that of the support at other positions;

the material of the part of the support corresponding to the flexible display part is partially removed, and the support is provided with a plurality of concave structures or/and hollow structures at the position.