CN113315855B

CN113315855B - Folding screen assembly, manufacturing method thereof and electronic equipment

Info

Publication number: CN113315855B
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: 2024-06-04
Anticipated expiration: 2040-02-26
Also published as: CN113315855A

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 support piece overlapped 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 is capable of being 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 support piece comprises a support main body attached to the display main body and an arc-shaped support part connected to the support main body and attached to the curved surface display part. The edge of the folding screen assembly is provided with the curved surface display part in a curved surface shape, the screen occupation ratio of the electronic equipment is relatively high, the display main body of the display screen is supported by the support main body of the support piece, and the curved surface display part is supported by the arc-shaped support part, so that the folding screen assembly can be ensured to have higher structural stability.

Description

Folding screen assembly, manufacturing method thereof and electronic equipment

Technical Field

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

Background

With the development and progress of technology, communication technology has been rapidly developed and advanced, and with the improvement of 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 people's life, such as smart phones, smart televisions, computers, etc.

While electronic devices are popular, users have increasingly demanded display areas of electronic devices, and foldable electronic devices having larger display screens have grown. However, since the display screen of the foldable electronic device is generally manufactured by using the flexible display module, in order to fix the flexible display module, people can cover and fix the flexible display module by using the frame of the foldable electronic device, so that the frame of the foldable electronic device is thicker, and the screen occupation ratio of the whole electronic device is still relatively lower.

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 support piece overlapped 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 is capable of being 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 support piece comprises a support main body attached to the display main body and an arc-shaped support part connected to the support 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, including a foldable housing assembly and the above-mentioned folding screen assembly, where the folding screen assembly covers 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 die, wherein the support piece comprises a support main body and an arc-shaped support part connected to the support main body, and the support die is provided with an arc-shaped support structure suitable for bearing the arc-shaped support part; superposing a display screen on one side of the support piece, which is far away from the support die, wherein the display screen is a planar flexible display screen; the pressing die is pressed on one side of the display screen, which is away from the supporting piece, wherein the pressing die is provided with an arc surface pressing structure which can be embedded with the arc surface supporting structure; and maintaining the pressure of the pressing die for a preset period of time, so that 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 die and the supporting die, 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.

According to the electronic equipment and the folding screen assembly thereof, the curved surface display part in a curved surface shape is arranged at least one edge of the display main body, and when the folding screen assembly is connected with the shell of the electronic equipment, the curved surface display part can obviously blank the black edge required by the installation of the traditional folding screen assembly, so that the screen occupation ratio of the foldable electronic equipment is improved. Further, in the folding screen assembly, the display main body and the curved surface display part of the display screen are respectively supported by the support main body and the arc-shaped support part of the support part, so that the folding screen assembly can be ensured to have higher structural stability.

Drawings

In order to more clearly illustrate the technical solutions of the application, the drawings that are required to be used in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the application and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

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

Fig. 2 is a schematic cross-sectional view of the folding 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 expanded 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 another alternative construction of the folding screen assembly of fig. 4.

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

Fig. 8 is a schematic cross-sectional 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 assembled schematic view of the folding screen assembly of fig. 8 with a housing side structure of an electronic device.

Fig. 11 is an assembled schematic view of the folding screen assembly of fig. 8 with another side structure of the housing of the electronic device.

Fig. 12 is a flowchart 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 forming process of a support member of the folding screen assembly in the manufacturing method shown in fig. 12.

Fig. 14 is a schematic view of a first-step fitting process of the folding screen assembly in the manufacturing method shown in fig. 12.

Fig. 15 is a schematic view of a second-step fitting process of the folding screen assembly in the manufacturing method shown in fig. 12.

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

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

As used in embodiments of the present application, an "electronic device" includes, but is not limited to, a device configured to receive/transmit communication signals via a wireline connection (e.g., 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 configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," wireless terminal, "" electronic device, "and/or" electronic apparatus. Examples of electronic devices include, but are not limited to, satellites or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers, gaming machines, 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 accompanying drawings in the embodiments of the present application.

Referring to fig. 1, an embodiment of the present application provides an electronic device 200 with a folding 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, etc. 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 the surface of the electronic device 200 to provide a man-machine 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) disposed in the foldable housing assembly 201, wherein the foldable screen assembly 100 is disposed on the foldable housing assembly 201. The foldable housing assembly 201 is used to carry the folding screen assembly 100 while protecting the electronic assembly. It should be noted that, in the present specification, when one component is considered to be "disposed on" another component, it may be connected to or directly disposed on the other component, or there may be a centering component at the same time; when a component is considered to be "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 rotating shaft mechanism 2015, where the first housing 2011 and the second housing 2013 are respectively connected to two sides of the rotating shaft mechanism 2015. The second housing 2013 can be folded or unfolded relative to the first housing 2011 through the rotating shaft mechanism 2015, so that the foldable housing assembly 201 drives the folding screen assembly 100 to fold or unfold, and when the foldable housing assembly 201 and the folding screen assembly 100 are in a folded shape, the volume of the electronic device 200 is relatively small, and the electronic device is convenient to store and carry.

The electronic assembly comprises a first electronic module, a second electronic module and a flexible circuit board, wherein the first electronic module is arranged in the first shell 2011, the second electronic module is arranged in the second shell 2013, and the flexible circuit board is respectively and electrically connected with the first electronic module and the second electronic module. Further, the first electronic module may be a motherboard, and a central processing unit, a memory, an antenna, a camera, a handset, etc. disposed on the motherboard. The second electronic module may also be composed of a printed circuit board and a functional module disposed on the printed circuit board, and the second electronic module may include a battery, a connector, a fingerprint module, and the like, unlike the first electronic module.

The folding screen assembly 100 is disposed over the foldable housing assembly 201. Further, the folding screen assembly 100 is laid on the first housing 2011, the rotating shaft mechanism 2015, and the second housing 2013. In the present embodiment, the folding screen assembly 100 has a flexible portion that can be bent, so that the folding screen assembly 100 can be folded or unfolded along with the first housing 2011 and the second housing 2013. The folding screen assembly 100 is electrically connected to the electronic assembly so that the electronic assembly can control the display contents of the folding screen assembly 100 and acquire interactive information via the folding screen assembly 100.

Referring to fig. 2, in the present embodiment, the folding screen assembly 100 includes a display screen 10 and a support member 30, wherein the support 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 so as to be not easy to deform, which is beneficial to ensuring the structural stability of the folding screen assembly 100.

In this embodiment, the display 10 is an active matrix organic light emitting diode (active matrix organic lightemitting diode, AMOLED) display. The AMOLED display screen is used as a self-luminous display screen, and a backlight module (back light module, BLM) is not required to be arranged. Accordingly, when the substrate in the AMOLED display panel is made of a flexible resin material such as polyethylene terephthalate (polyethylene terephthalate, PET), the AMOLED display panel can have a bendable property.

The display screen 10 includes a display main body 12 and a curved surface 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 portion 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 portion 13 may be connected to one edge, two edges, or two or more edges of the display main body 12, and is not limited to this specification, and for example, when the display main body 12 is substantially rectangular in a flattened state, it is provided with four edges, and the curved display portion 13 may be connected to one or more of the four edges. The following embodiment will be described taking an example in which the curved display portion 13 is connected to both edges.

In the present embodiment, the curved surface 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 body 12 is capable of folding and unfolding with the foldable housing assembly 201 such that the first curved surface section 14 and the second curved surface section 16 are away from or towards each other. When the display main body 12 is in the flattened state, the display main body is substantially planar, and the first curved surface portion 14 and the second curved surface portion 16 are curved toward the same side with respect to the planar 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.

Referring to fig. 3, in the present embodiment, the display main body 12 includes a first planar portion 121, a second planar portion 123, and a flexible display portion 125. The first curved surface portion 14 is connected to the first planar portion 121, the second curved surface portion 16 is connected to the second planar portion 124, and the flexible display portion 125 is connected between the first planar portion 121 and the second planar portion 123. When the folding screen assembly 100 is connected to the foldable housing assembly 201, the first planar portion 121 is stacked on the first housing 2011, the second planar portion 123 is stacked on the second housing 2013, and the flexible display portion 125 substantially corresponds to a position where the hinge mechanism 2015 is located. The first and second planar portions 121 and 123 can be relatively folded or unfolded with the first and second housings 2011 and 2013, respectively, and the flexible display portion 125 can be folded or flattened with the folding or unfolding of the first and second planar portions 121 and 123.

In other embodiments, the first planar portion 121, the second planar portion 123, the flexible display portion 125, the first curved portion 14, and the second curved portion 16 may be integrally configured such that the folding screen assembly 100 is a one-piece flexible display screen; or the first curved surface portion 14, the second curved surface portion 16, and the flexible display portion 125 are bendable flexible portions, and the first and second planar portions 121, 123 may be inflexible portions, the first and second planar portions 121, 123 being relatively folded or unfolded by the flexible display portion 125.

In this embodiment, when the first housing 2011 and the second housing 2013 are in a folded state, the first planar portion 121 and the second planar portion 123 face away from each other, and the flexible display portion 125 faces the outside and is located at a side portion of the folded electronic device 200, so that the electronic device 200 presents a structure of an folded screen, and a user can observe the display content of the folded screen assembly 100 under the folded condition, so that the electronic device 200 has high convenience, and the first curved portion 14 and the second curved portion 16 are located at the outer edge of the electronic device 200, which is beneficial to improving the holding feel of the electronic device 200. It can be understood that when the first housing 2011 and the second housing 2013 are stacked, the first plane portion 121 and the second plane portion 123 can be stacked relatively, and the flexible display portion 125 is folded and is accommodated in the electronic device 200 after being folded, so that the electronic device 200 is in an inward folded screen structure, and the folding screen assembly 100 is prevented from being scratched.

It should be understood that the designations 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 provided for convenience of description only, and are not limiting as to the structure of the foldable screen, and in an actual 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 obvious limitation, or the foldable screen may appear in other divided 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 by the embodiment of the application, the electronic device 200 includes a first housing 2011 and a second housing 2013 which can be folded relatively, and a first plane portion 121 and a second plane portion 123 which correspond to each other, so that the electronic device 200 is a two-in-one electronic device which can be folded in half. It is to be understood that the electronic device 200 may further include a third housing and a corresponding third planar portion (not shown in the figure), where one side of the third housing is rotatably connected to the first housing 2011, and the other side of the third housing is rotatably connected to the second housing 2013, and the third planar portion is laid on the third housing and connected between the first planar portion 121 and the second planar portion 123, where both the first housing 2011 and the second housing 2013 may 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 may be a three-fold electronic device capable of performing a secondary folding. It is understood that the third housing and the third planar portion thereon may be disposed at other positions, for example, the third housing may be rotatably connected to a side of the first housing 2011 away from the second housing 2011, or the third housing may be rotatably connected to a side of the second housing 2013 away from the first housing 2011. It is also understood that the electronic device 200 may further include more housings and display portions, so that the electronic device 200 is in a multi-fold structure, and thus has a smaller storage volume to facilitate storage and carrying of the electronic device 200 on the premise of ensuring a larger display area of 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 support 30 has a support structure corresponding to the display screen 10 to provide a more reliable fixation and support for the display screen 10. Further, the support 30 may be stamped from metal or formed from glass by hot bending. For example, the material of the support 30 may be copper alloy, aluminum alloy, stainless steel, titanium alloy, magnesium alloy, zinc alloy, liquid metal, or the like, so that the support 30 has the characteristics of high rigidity, high thermal conductivity, and light weight.

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

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

Further, the support body 32 includes a third plane portion 321 and a fourth plane portion 323. The third plane portion 321 is substantially flat, and is attached to the first plane portion 121 of the display screen 10, so as to support the first plane portion 121, and the first arc portion 34 is connected to the third plane portion 321. The fourth plane portion 323 is substantially flat and is attached to the second plane portion 123 of the display screen 10, so as to support the second plane portion 123, and the second arc portion 36 is connected to the fourth plane 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 support 30 further includes a flexible connection part 325, and the flexible connection part 325 is located at a position of the support 30 corresponding to the flexible display part 125 and connected between the third plane part 321 and the fourth plane part 323. The flexible display connection part 325 is attached to the flexible display part 125 to provide support for the flexible display part 125, preventing the flexible display part 125 from collapsing or from being deformed by arching after repeated folding. Further, the elastic modulus of the flexible connection part 325 is smaller than that of other parts of the support 30, for example, the elastic modulus of the flexible connection part 325 is smaller than that of the third plane part 321 or the fourth plane part 323. In this way, on the premise of firmly supporting the first plane portion 121 and the second plane portion 123 of the display screen 10, the bending performance of the whole supporting member 30 can be improved, and the folding process of the electronic device 200 can be smoother.

It should be noted that the above-mentioned "modulus of elasticity" is understood as a general physical concept, which is a measure of the amount of an object's ability to resist elastic deformation. In general, the manner of bonding, crystal structure, chemical composition, microstructure, temperature, etc. of an object or material affects the magnitude of the elastic modulus. The elastic modulus of the metal-made object is different depending on the alloy composition, the heat treatment state, the cold plastic deformation, and the like. For objects made of common non-metals and metals, the cross-sectional shape and area of the object used to carry the load will affect the magnitude of the modulus of elasticity. By designing different elastic moduli for different portions of the support 30, different portions thereof can have different elastic deformability, and folding and supporting requirements of the folding display screen assembly 100 can be satisfied.

Embodiments of the present application provide various schemes to control the modulus of elasticity of the flexible connection unit 325 to be less than the modulus of elasticity of other portions of the support member 30, for example, different materials or different processing techniques may be selected to make the flexible connection unit 325 and other portions of the support member 30, but the embodiments illustrated herein should not be limited thereto.

For example, in some embodiments, as shown in fig. 5, the support 30 may be integrally formed with a connection structure, and the thickness of the flexible connection part 325 is smaller than that of other parts of the support 30, such as the third plane part 31 or the fourth plane part 323, so that the elastic modulus of the flexible connection part 325 is smaller than that of other parts of the support 30, and the flexible connection part 325 is more prone to be elastically deformed than other parts.

As another example, in some embodiments, as shown in fig. 6, the support 30 may be integrally formed as a single piece connection structure, with various microstructures formed on the flexible connection portion 325 to reduce its elastic modulus. Specifically, it is understood that the flexible connection part 325 has a plurality of concave structures and/or a plurality of hollowed structures, so that the flexible connection part 325 is more prone to elastic deformation than other parts. These concave structures and hollowed-out structures can be formed by various ways, for example, part of the material on the flexible connection part 325 can be removed by CNC processing to form concave or hollowed-out structures, and for example, concave or hollowed-out microstructures can be formed on the flexible connection part 325 by etching process, which is not described in detail in this specification.

For example, in other embodiments, as shown in fig. 7, the support 30 is in a split structure, the third plane portion 321 and the fourth plane portion 323 are spaced apart from each other, and the flexible connection portion 325 is omitted, so that the support body 32 is in a vacant state at a position between the third plane portion 321 and the fourth plane portion 323, and thus, it is possible to avoid that excessive material of the support 30 limits the folding action of the electronic device 200. It should be noted that, in the present embodiment, the above-mentioned "empty state" should not be limited to a state in which no material is disposed at this position, but should be understood as a state in which the hollowed-out area of the support 30 at a position between the third plane portion 321 and the fourth plane portion 323 is much larger than the non-hollowed-out area (e.g., the area ratio of the two is greater than or equal to 3:1). Specifically, the above-described "vacant state" may include any one of the following specific examples: the support 30 is not provided with any material at a position between the third plane portion 321 and the fourth plane portion 323; the third plane portion 321 and the fourth plane portion 323 can be connected by one or more connecting bars and other structures, and when the number of connecting bars is multiple, the connecting bars are arranged at intervals along the axial direction of the rotating shaft mechanism 2015; most of the material of the support 30 is removed at a location between the third planar portion 321 and the fourth planar portion 323, and the ratio of the hollowed-out area to the retained material area is greater than or equal to 10:1.

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

Referring to fig. 10, when the folding screen assembly 100 is mounted on the housing 201, the end of the folding screen assembly 100 is engaged with the end surface of the foldable housing assembly 201, so that the electronic device 200 has a cambered surface edge, and the structure is smoother, which is beneficial to improving the holding feel of the electronic device 100. For example, the foldable housing assembly 201 may be provided with a receiving end surface, the end of the folding screen assembly 100 may be provided with an engaging end surface facing generally opposite the display surface of the display 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 folding screen assembly 100 may have a first end surface 1001, where the first end surface 1001 is located at one end of the folding screen assembly 100, and the first end surface 1001 faces away (e.g., opposite or substantially opposite) from the display surface of the display 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 folding screen assembly 100 substantially covers the outer contour of the foldable housing assembly 200 when the electronic device 200 is projected toward its back case in the thickness direction thereof. In this way, the curved surface portion of the folding screen assembly 100 can substantially cover the edge of the foldable housing assembly 201, so that the electronic device 200 has a smoother curved surface edge structure, which is beneficial to improving the holding feeling and the technological sense of 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 present application.

Further, the first housing 2011 may be an integrally formed structure, which may be structurally divided into a bearing portion 2031 and a frame 2033 surrounding the bearing portion 2031. It should be understood that the "carrying portion" and the "frame" are merely named for convenience of description, and there may be no obvious dividing line between the two, or two or more components may be assembled together, and the naming of the "carrying portion" and the "frame" should not limit the structure of the first housing 2011. The carrying portion 2031 is for carrying a part of the structure of the display main body 12, and may also be used for carrying or mounting electronic components of the electronic apparatus 200. The bezel 2033 has a first joint end surface 2035, and the orientation of the first joint 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 overlies the first engagement end surface 2035. Further, the first joint end surface 2035 may be provided with a glue receiving groove (not shown), and an adhesive (not shown) is disposed 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 folding screen assembly 100 may further be provided with a second end surface 1003, where the second end surface 1003 is located at the other end (e.g., the end far from the first end surface 1001) of the folding screen assembly 100, and the second end surface 1003 faces away (e.g., is opposite or substantially opposite) from the display surface of the display main body 12. The second end surface 1003 is adjacent to the second curved surface portion 16 and engages with an end of the second housing 2013 so that the outer contour of the folding screen assembly 100 substantially covers the outer contour of the foldable housing assembly 200 when the electronic device 200 is projected toward its back shell in the thickness direction thereof. In the embodiment of the present application, the second end surface 1003 may be located at an end of the cover 50, an end of the display screen 10, or an end of the supporting member 30, which is not limited by the present application.

Further, the second housing 2013 includes a carrying portion 2051 and a frame 2053 surrounding the carrying portion 2051, and the carrying portion 2051 and the frame 2053 may be in an integrally formed structure. The carrying portion 2051 is for carrying a part of the structure of the display main body 12. The bezel 2053 has a second engaging end surface 2055, and the second engaging end surface 2055 is oriented substantially the same as the display surface of the display main body 12. The second end face 1003 of the folding screen assembly 100 is located at the end of the cover 50, the second end face 1003 overlying the second engagement end face 2055. Further, the second joint end surface 2055 may be provided with a glue receiving groove (not shown) in which an adhesive (not shown) is provided, and the second end surface 1003 is connected to the second joint 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 being located generally between the support 30 and the carriers 2031, 2051, the flexible circuit board 70 being used to electrically connect the display screen 10 to a control motherboard 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 parts 2031 and 2051 are provided with a clearance groove (not shown) for accommodating the bent end of the flexible circuit board 70, so as to avoid extrusion of the flexible circuit board 70 and facilitate heat dissipation. The clearance groove is provided substantially between the bearing portions 2031, 2051 and the rims 2033, 2035, and is recessed with respect to the first joint end surface 2035 or the second joint end surface 2055 adjacent thereto. In the present embodiment, the end portion of the flexible circuit board 70 is bent to form an arc shape, but naturally, the end portion may also be bent to form a semicircular shape or other possible bending shapes (such as a U-shaped bending shape, a semicircular bending shape, a semi-elliptical bending shape, or a T-shaped bending shape, etc.), which is not limited herein, thereby reducing the forward projection of the flexible circuit board 70 in the area where the flexible circuit board is located, and thus reducing the black edge at the bottom of the electronic device 200.

Referring to fig. 12, based on the above folding screen assembly, an embodiment of the present application further provides a method for manufacturing a folding screen assembly, which includes steps S101 to S107.

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

As shown in fig. 13, a support mold 501 having a contoured structure is used to carry the support member, and the first arcuate portion 34 and the second arcuate portion 36 of the support member 30 overlie the arcuate support structure of the support mold 501. In some embodiments, the method described above further comprises the step of preparing the support prior to step S101. As shown in fig. 14, the step of preparing the support may include: the metal sheet 500 is provided, and the metal sheet 500 is punched to form an arc-shaped support portion 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: the glass sheet 500 is provided, and the glass sheet 500 is thermally bent to form an arc-shaped support portion at least one edge of the glass sheet 500, thereby obtaining the support 30.

Further, the thickness of the metal sheet 500 or the glass sheet 500 is in the range of 0.08mm to 0.12mm, such as 0.1mm.

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 substantially central location of the support 30, providing the support 30 with any one of the following structures: the material of the support 30 is removed entirely at a substantially central location; the material of the support 30 is partially removed at a substantially central location where the thickness of the support 30 is less than at other locations; the material of the support 30 is partially removed at a substantially central location where the support 30 has a plurality of recessed structures or/and hollowed-out structures such that the thickness at this location ranges from 0.02mm to 004mm, such as 0.03mm. The recess structures and the hollow structures can be formed by various ways, for example, a portion of the material on the support member 30 can be removed by CNC processing to form a recess or a hollow structure, and for example, a recess or a hollow microstructure can be formed on the support member 30 by etching.

Step S103: and superposing the display screen on one side of the support piece, which is far away from the support die, 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: the pressing die is pressed on one side of the display screen, which is away from the supporting piece, and the pressing die is provided with an arc surface pressing structure which can be embedded with the arc surface supporting structure.

As shown in fig. 13 and 15, in some embodiments, a planar portion of the display screen 10 is first pressed by using a first pressing mold 503, where a pressing surface of the first pressing mold 503 is a plane. And then, the whole structure of the display screen 10 is pressed by adopting the second pressing mold 505, wherein the pressing surface of the second pressing mold 505 is provided with an arc surface pressing structure which can be embedded with the arc surface supporting structure of the supporting mold 501, and the display screen 100 can be attached to the first arc-shaped part 34 and the second arc-shaped part 36 of the supporting piece 30 through the arc surface pressing structure. Thus, the planar portion of the display screen 10 is pressed first, and then the curved portion is pressed, which is beneficial to improving the yield of pressing. In some embodiments, the whole structure of the display screen 10 may be directly pressed by the second pressing mold 505, and the plane and the curved surface structures of the display screen 10 are simultaneously attached to the supporting member 30, so as to save the process flow.

Step S107: the pressing die is subjected to pressure maintaining for a preset time period, so that the display screen forms a display main body and a curved surface display part connected to the display main body under the extrusion of the pressing die and the supporting die, 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.

The folding screen assembly manufactured based on the manufacturing method is provided with the curved display parts at the opposite ends, and when the folding screen assembly is combined with the shell of the electronic equipment, the curved display parts can obviously blank the black edge of the traditional folding screen assembly, so that the screen occupation ratio of the foldable electronic equipment is improved. Further, in the folding screen assembly, the first curved surface portion and the second curved surface portion of the display screen are respectively supported by the first curved surface portion and the second curved surface portion 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 smart phone terminal, where the electronic device 200 generally further includes one or more (only one is shown in fig. 16) of the following components: the camera module 108 includes a processor 102, a memory 104, a camera 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 appreciated by those of ordinary skill in the art that the configuration shown in fig. 16 is merely illustrative and is not intended to limit the configuration of the electronic device 200. For example, the 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 camera module 108 may be a camera, which is disposed on the foldable housing assembly 201, for performing a shooting task, for example, for taking pictures, video, or making a videophone call, etc. The audio circuit 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 physical buttons 107, a touch screen 109 disposed on the folding screen assembly 100, etc., and the touch screen 109 may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch screen 109 or thereabout using any suitable object or accessory such as a finger, a stylus, etc.), and drive the corresponding connection device according to a predetermined program.

The folding screen assembly 100 is used to display information entered by a user, information provided to a user, and various graphical user interfaces of the electronic device 200, which may be formed of graphics, text, icons, numbers, video, and any combination thereof, and in one example, the touch screen 109 may be disposed 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 power to the processor 102 and other components. Specifically, 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 related to the generation, management, and distribution of power within the electronic or folding screen assembly 100.

It should be understood that the above-described electronic device 200 is not limited to a smart phone terminal, but should refer to a computer device that can be used in motion. Specifically, the electronic device 200 refers to a mobile computer device on which an intelligent operation device is mounted, and the electronic device 200 includes, but is not limited to, a smart phone, a smart watch, a notebook, a tablet, a POS device, and even includes a vehicle-mounted computer, and the like.

In this specification, particular features or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction. Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic device is characterized by comprising a foldable shell assembly and a folding screen assembly, wherein the folding screen assembly is covered on the foldable shell assembly;

The folding screen assembly comprises a display screen and a support piece which is overlapped on one side of the display screen;

The display screen includes:

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

the support includes:

A support body attached to the display body; and

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

The foldable shell assembly is provided with a bearing end face, the end part of the folding screen assembly is provided with an engagement end face, and the orientation of the engagement end face is deviated from the orientation of the display surface of the display main body; the joint end surface is adjacent to the curved surface display part and is jointed with the bearing end surface of the foldable shell component; the outer contour of the folding screen assembly can cover the outer contour of the foldable housing assembly.

2. The electronic device of claim 1, wherein the curved display portion includes a first curved portion and a second curved portion, the first curved portion and the second curved portion being respectively connected to opposite ends of the display body; the arc-shaped supporting portion comprises a first arc-shaped portion attached to the first curved surface portion and a second arc-shaped portion attached to the second curved surface portion.

3. The electronic device 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 with the first plane part, and the second curved surface part is connected with the second plane part; the support body includes a third planar portion that is attached to the first planar portion and a fourth planar portion that is attached to the second planar portion.

4. The electronic device of claim 3, wherein the third planar portion and the fourth planar portion are disposed in spaced relation to one another.

5. The electronic device of claim 4, wherein the support body further comprises a flexible connection portion connected between the third planar portion and the fourth planar portion, the flexible connection portion having a modulus of elasticity that is less than a modulus of elasticity of the third planar portion.

6. The electronic device of claim 5, wherein a thickness of the flexible connection section is less than a thickness of the third planar section.

7. The electronic device of claim 5, wherein the flexible connection part has a plurality of concave structures or/and a plurality of hollowed-out structures.

8. The electronic device of claim 5, wherein the support is stamped from metal or formed from glass by hot bending.

9. The electronic device of any one of claims 1-8, wherein the folding screen assembly further comprises a cover plate covering a side of the display screen facing away from the support, the cover plate having a curved structure conforming to the curved display.