Foldable electronic device

Abstract

The invention discloses foldable electronic equipment, which comprises a flexible screen and a folding device, and is characterized in that the flexible screen is provided with a folding area and a non-folding area; the non-folding areas are connected to the two sides of the folding area; the folding device comprises a base, a connecting assembly and a supporting assembly, one end of the connecting assembly is rotationally connected with the base, the other end of the connecting assembly is rotationally connected with the supporting assembly, so that the folding device can be switched between a folding form and an unfolding form, and the supporting assembly is fixedly connected with the folding area; in the process that the folding device is switched from the unfolded state to the folded state, the laminated layers, connected with the supporting assembly, of the flexible screen move in the direction close to the base relative to the laminated layers, away from the supporting assembly, of the flexible screen in a staggered mode. According to the foldable electronic equipment disclosed by the invention, the supporting assembly is fixedly connected with the folding area, so that in the folding process of the flexible screen, the laminated layer, connected with the supporting assembly, of the flexible screen is staggered towards the direction close to the base relative to the laminated layer, deviating from the supporting assembly, of the flexible screen.

Description

Technical Field

[0001] This application relates to the technical field of the structure of electronic devices, and more particularly to a foldable electronic device. Background Art

[0002] Compared with traditional straight mobile phones, foldable electronic devices such as foldable screen mobile phones have unique advantages such as freely switching between large and small screens and hovering (folding to a certain angle) applications. However, due to current technical limitations, they also have deficiencies in certain dimensions. For example, the relatively wide black edges of electronic devices have an obvious adverse impact on the user experience of the product. Summary of the Invention

[0003] An embodiment of this application provides a foldable electronic device, which includes: a flexible screen and a folding device. The flexible screen has a folding area and a non-folding area, and the non-folding area is connected to both sides of the folding area; the folding device includes a base, a connecting component, and a supporting component. One end of the connecting component is rotatably connected to the base, and the other end is rotatably connected to the supporting component, so that the folding device can be switched between a folded state and an unfolded state. The supporting component is fixedly connected to the folding area of the flexible screen; wherein, during the process of the folding device switching from the unfolded state to the folded state, the stack of the flexible screen connected to the supporting component moves relative to the stack of the flexible screen facing away from the supporting component in a direction close to the base.

[0004] The foldable electronic device provided by the embodiment of this application, by fixedly connecting the supporting component to the folding area of the flexible screen, enables the stack of the flexible screen connected to the supporting component to move relative to the stack of the flexible screen facing away from the supporting component in a direction close to the base during the folding process of the flexible screen, thereby reducing the width of the black edge of the foldable electronic device. Brief Description of the Drawings

[0005] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0006] Figure 1 is a schematic structural diagram of a foldable electronic device in the unfolded state in some embodiments of this application;

[0007] Figure 2 is Figure 1 a schematic structural diagram of the foldable electronic device in the folded state in the embodiment;

[0008] Figure 3 It is a schematic structural diagram of a foldable electronic device in some other embodiments of the present application;

[0009] Figure 4 is Figure 3 a schematic diagram of the structural disassembly of a foldable electronic device in an embodiment;

[0010] Figure 5 is Figure 3 a schematic cross-sectional structural diagram of area A in a foldable electronic device along the B-B direction in an embodiment;

[0011] Figure 6 It is a schematic diagram of the stack dislocation structure when the flexible screen is folded in some embodiments of the present application;

[0012] Figure 7 It is a schematic diagram of the stack dislocation structure when the flexible screen is folded in some other embodiments of the present application;

[0013] Figure 8 It is a schematic structural diagram of a foldable electronic device in some other embodiments of the present application;

[0014] Figure 9 is Figure 8 a schematic cross-sectional structural diagram of area D in a foldable electronic device along the C-C direction in an embodiment;

[0015] Figure 10 is Figure 8 a schematic cross-sectional structural diagram of area E in a foldable electronic device along the C-C direction in an embodiment;

[0016] Figure 11 It is a schematic cross-sectional structural diagram of area E along the C-C direction in some other embodiments of the present application;

[0017] Figure 12 is Figure 8 a schematic cross-sectional structural diagram of area F / area G in a foldable electronic device along the H-H direction in an embodiment;

[0018] Figure 13 It is a schematic cross-sectional structural diagram of area F / area G along the H-H direction in some other embodiments of the present application;

[0019] Figure 14 It is a schematic cross-sectional structural diagram of area D along the C-C direction in some other embodiments of the present application;

[0020] Figure 15 It is a schematic cross-sectional structural diagram of area E along the C-C direction in some other embodiments of the present application;

[0021] Figure 16 It is a schematic cross-sectional structural diagram of area F / area G along the H-H direction in some other embodiments of the present application; Detailed implementation manners

[0022] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be specifically noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only partial embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0023] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] As used herein, an "electronic device" (or simply referred to as a "terminal") includes, but is not limited to, a device configured to receive / transmit communication signals via a wired connection (such as via a public switched telephone network (PSTN), digital subscriber line (DSL), digital cable, direct cable connection, and / or another data connection / network) and / or via a wireless interface (such as for a cellular network, wireless local area network (WLAN), digital television network such as DVB-H network, satellite network, 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" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal communication system (PCS) terminals that can combine cellular radiotelephone with data processing, facsimile, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, notebooks, calendars, and / or global positioning system (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices including radiotelephone transceivers. A mobile phone is an electronic device configured with a cellular communication module.

[0025] It should be noted that the electronic devices in the embodiments of the present application mainly refer to electronic devices with foldable screens, such as foldable mobile phones. Foldable mobile phones have gradually become the development trend of future whole machines. The main advantages they bring are that they combine entertainment and office work and are easy to carry, meeting the current consumers' demand for the unity of portability and diverse functions. Among them, foldable mobile phones generally have folding methods such as inward folding and outward folding. For a foldable mobile phone with an inward folding method, after folding, the display surfaces of the flexible screens approach each other along the folding area, that is, the flexible screens are in an inward folding form. For a foldable mobile phone with an outward folding method, after folding, the display surfaces of the flexible screens deviate from each other along the folding area, that is, the flexible screens are in an outward folding form.

[0026] In the description of the embodiments of the present application, "connection" includes two cases: direct connection and indirect connection. For example, the connection between A and B includes the direct connection between A and B or the connection through a third element C or more other elements. Connection also includes two cases: integrated connection and non-integrated connection. Integrated connection means that A and B are integrally formed and connected, and non-integrated connection means that A and B are non-integrally formed and connected. It can be understood that unless otherwise limited by modifiers, prefixes, suffixes, etc., the "connection" referred to in the embodiments of the present application should be understood to include, but not be limited to, fixed connection, rotational connection, sliding connection, pivot connection, screw connection, movable connection, interference connection, friction connection, elastic connection, rigid connection, adhesive connection, etc. It can be understood that the "fixing" referred to in the embodiments of the present application is not limited to the direct fixing of two elements, but can be fixed through a third party element or more elements. It can be understood that various specific connection relationships such as "rotational connection", "sliding connection", "rotary connection", "elastic connection", "rigid connection", "fixed connection", "movable connection", "pivot connection", "screw connection", etc. referred to in the present application are also not limited to the direct connection of two elements, but can be connected through a third party element or more other elements, unless it is clearly specified that the two elements are directly connected.

[0027] All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] Please refer to Figure 1 and Figure 2 , Figure 1 are schematic structural diagrams of the foldable electronic device 10 in the unfolded form in some embodiments of the present application. Figure 2 is Figure 1Schematic diagram of the structure of the foldable electronic device 10 in the folded state. The foldable electronic device 10 may include a folding housing 100, a flexible screen 200 disposed on the folding housing 100, and a folding device 500. The folding housing 100 is configured to carry the flexible screen 200 and the folding device 500. The folding device 500 is disposed between the folding housing 100 and the flexible screen 200.

[0029] Specifically, the flexible screen 200 has a folding area 210 and a non-folding area 220 with an integral structure. The non-folding area 220 is connected to both sides of the folding area 210. Optionally, the folding area 210 is located in the middle area of the flexible screen 200, and the non-folding areas 220 are located on opposite sides of the folding area 210, that is, there may be two non-folding areas 220. In the unfolded state, the folding area 210 is flattened into a flat shape, and the two non-folding areas 220 are located on opposite sides of the folding area 210, so that the flexible screen 200 can present a flat non-folded state. In the folded state, the folding area 210 can be folded into an arc shape, and the two non-folding areas 220 are located on the same side of the folding area 210 and are close to each other, so that the flexible screen 200 can present a water droplet-shaped folded state.

[0030] In one embodiment, the folding housing 100 may include a first housing 110 and a second housing 120. The first housing 110 and the second housing 120 are rotatably connected by the folding device 500, that is, opposite ends of the folding device 500 are respectively connected to the first housing 110 and the second housing 120. The flexible screen 200 can be opened or folded synchronously as the folding housing 100 is opened or folded. Optionally, the folding housing 100 and the folding device 500 are fixedly connected, that is, opposite ends of the folding device 500 are respectively fixedly connected to the first housing 110 and the second housing 120, so that the folding device 500 can be folded synchronously with the folding housing 100, that is, maintain substantially the same folding angle.

[0031] The folding device 500 may include a base 510, a connecting component 520, and a supporting component 530. Among them, the base 510 corresponds to the folding area of the flexible screen 200. The connecting component 520 is connected to the base 310 and can rotate relative to the base 310. The supporting component 530 is connected to the connecting component 520 and can rotate relative to the connecting component 520. Specifically, one end of the connecting component 520 is rotatably connected to the base 310, and the other end is rotatably connected to the supporting component 530, so that the folding device 500 can be switched between the folded state and the unfolded state. Among them, the connecting component 520 can be disposed between the supporting component 530 and the base 510, and the supporting component 530 can be disposed between the base 510 and the flexible screen 200.

[0032] In one embodiment, the connecting component 520 may include a first connecting component 520a and a second connecting component 520b which are oppositely arranged. The first connecting component 520a and the second connecting component 520b are respectively rotatably connected to opposite sides of the base 510. The supporting component 530 may include a first supporting member 531 and a second supporting member 532 which are oppositely arranged. One end of the first connecting component 520a is rotatably connected to the base 510, and the other end is rotatably connected to the first supporting member 531; one end of the second connecting component 520b is rotatably connected to the base 510, and the other end is rotatably connected to the second supporting member 532.

[0033] The first connecting component 520a may include a first rotating member 521 and a first fixing member 523. The first fixing member 523 may be fixed on the first housing 110 and rotatably connected to the first supporting member 531. One end of the first rotating member 521 is rotatably connected to the first supporting member 531, and the other end is rotatably connected to the base 510. The first rotating member 521 may be rotatably connected to the base 510 through structural members such as a rotating shaft and a pin.

[0034] The second connecting component 520b may include a second rotating member 522 and a second fixing member 524. The second fixing member 524 may be fixed on the second housing 120 and rotatably connected to the second supporting member 532. One end of the second rotating member 522 is rotatably connected to the second supporting member 532, and the other end is rotatably connected to the base 510. The second rotating member 522 may be rotatably connected to the base 510 through structural members such as a rotating shaft and a pin.

[0035] For example, groove-like structures may be respectively provided on opposite sides of the base 510. The ends of the first rotating member 521 and the second rotating member 522 connected to the base 510 may be arranged in the groove-like structures of the base 510 and may be rotatably connected to the base 510 through structural members such as a rotating shaft and a pin. Also, for example, convex structures may be respectively provided on opposite sides of the base 510. The ends of the first rotating member 521 and the second rotating member 522 connected to the base 510 may be rotatably connected to the convex structures through structural members such as a rotating shaft and a pin. It can be understood that the first rotating member 521 and the second rotating member 522 may be plate-like bodies, rod-like bodies or other structural bodies. Among them, when the first rotating member 521 rotates relative to the base 510, the first rotating member 521 slides in a direction away from or close to the first fixing member 523 to change the angle between the first supporting member 531 and the first fixing member 523. When the second rotating member 522 rotates relative to the base 510, the second rotating member 522 slides in a direction away from or close to the second fixing member 524 to change the angle between the second supporting member 532 and the second fixing member 524.

[0036] In one embodiment, a first sliding groove 501 is provided on one of the first rotating member 521 and the first fixing member 523, and the other can slide along the first sliding groove 501, so that when the first rotating member 521 rotates relative to the base 510, the first rotating member 521 can slide in a direction away from or close to the first fixing member 523. A third sliding groove 503 is provided on one of the second rotating member 522 and the second fixing member 524, and the other can slide along the third sliding groove 503, so that when the second rotating member 522 rotates relative to the base 510, the second rotating member 522 can slide in a direction away from or close to the second fixing member 524.

[0037] Taking the first sliding groove 501 being provided on the first fixing member 523 as an example, the first rotating member 521 can slide along the first sliding groove 501 on the first fixing member 523. A slider that can be inserted into the first sliding groove 501 is provided on the first rotating member 521. When an external force is applied to the first fixing member 523 to make the first fixing member 523 rotate relative to the base 510 through the first rotating member 521, the first fixing member 523 drives the first rotating member 521 to rotate relative to the base 510. At the same time, the slider on the first rotating member 521 can slide in the first sliding groove 501 so that the first rotating member 521 can slide in a direction away from or close to the base 510, thereby enabling the folding device 500 to switch between the unfolded state and the folded state.

[0038] Similarly, taking the third sliding groove 503 being provided on the second fixing member 524 as an example, the second rotating member 522 can slide along the third sliding groove 503 on the second fixing member 524. A slider that can be inserted into the first sliding groove 501 is provided on the second rotating member 522. When an external force is applied to the second fixing member 524 to make the second fixing member 524 rotate relative to the base 510 through the second rotating member 522, the second fixing member 524 drives the second rotating member 522 to rotate relative to the base 510. At the same time, the slider on the second rotating member 522 can slide in the first sliding groove 501 so that the second rotating member 522 can slide in a direction away from or close to the base 510, thereby enabling the folding device 500 to switch between the unfolded state and the folded state.

[0039] Of course, the first rotating member 521 and the first fixing member 523 can also be slidably connected through other structures. For example, other sliding connection methods such as the cooperation of a slide rail and a sliding groove. The second rotating member 522 and the second fixing member 524 can also be slidably connected through other structures. For example, other sliding connection methods such as the cooperation of a slide rail and a sliding groove.

[0040] In one embodiment, the first rotating member 521 is slidably connected to the first fixing member 523 and the first supporting member 531 respectively, so that when the first rotating member 521 rotates relative to the base 510, the angle between the first supporting member 532 and the first fixing member 523 can be changed. The second rotating member 522 is slidably connected to the second fixing member 524 and the second supporting member 532 respectively, so that when the second rotating member 522 rotates relative to the base 510, the angle between the second supporting member 532 and the second fixing member 524 can be changed.

[0041] Wherein, a second sliding groove 502 is provided on one of the first rotating member 521 and the first supporting member 531, and the other can slide along the second sliding groove 502, so that the angle between the first supporting member 531 and the first fixing member 523 can be changed. A fourth sliding groove 504 is provided on one of the second rotating member 522 and the second supporting member 532, and the other can slide along the fourth sliding groove 504, so that the angle between the second supporting member 532 and the second fixing member 524 can be changed. Optionally, a first sliding groove 501 is provided on the first fixing member 523, a second sliding groove 502 is provided on the first supporting member 531, and the first rotating member 521 is slidably connected to the first sliding groove 501 and the second sliding groove 502 respectively; a third sliding groove 503 is provided on the second fixing member 524, a fourth sliding groove 504 is provided on the second supporting member 532, and the second rotating member 522 is slidably connected to the third sliding groove 503 and the fourth sliding groove 504 respectively; but not limited thereto.

[0042] Wherein, in the unfolded state of the foldable electronic device, there is a first angle D1 between the first sliding groove 501 and the second sliding groove 502. In the folded state of the foldable electronic device, there is a second angle D2 between the first sliding groove 501 and the second sliding groove 502. Wherein, the angle between the first sliding groove 501 and the second sliding groove 502 is exemplarily illustrated by the angle between their respective centerlines. Preferably, D1 > D2.

[0043] In the unfolded state of the foldable electronic device, there is a third angle D3 between the third sliding groove 503 and the fourth sliding groove 504. In the folded state of the foldable electronic device, there is a fourth angle D4 between the third sliding groove 503 and the fourth sliding groove 504. Wherein, the angle between the third sliding groove 503 and the fourth sliding groove 504 is exemplarily illustrated by the angle between their respective centerlines. Preferably, D3 > D4.

[0044] It can be understood that the first angle and the third angle may be the same, and the second angle and the fourth angle may be the same.

[0045] Specifically, during the process of the folding device 500 switching from the unfolded state to the folded state, the first housing 110 and the first fixing member 523 rotate in the first rotation direction, that is, the first chute 501 rotates in the first rotation direction, and then drives the first rotating member 521 to rotate in the first rotation direction. At the same time, the first rotating member 521 slides in the first chute 501 in a direction away from the first fixing member 523, driving the first support member 531 to rotate relative to the first fixing member 523 so that the angle between the first chute 501 and the second chute 502 gradually decreases.

[0046] During the process of the folding device 500 switching from the unfolded state to the folded state, the second housing 120 and the second fixing member 524 rotate in the second rotation direction, that is, the third chute 503 rotates in the second rotation direction, and then drives the second rotating member 522 to rotate in the second rotation direction. At the same time, the second rotating member 522 slides in the third chute 503 in a direction away from the second fixing member 524, driving the second support member 532 to rotate relative to the second fixing member 524 so that the angle between the third chute 503 and the fourth chute 504 gradually decreases.

[0047] During the process of the folding device 500 switching from the folded state to the unfolded state, the first housing 110 and the first fixing member 523 rotate in the first rotation direction, that is, the first chute 501 rotates in the first rotation direction, and then drives the second rotating member 522 to rotate in the first rotation direction. At the same time, the second rotating member 522 slides in the first chute 501 in a direction towards the first fixing member 523, driving the first support member 531 to rotate relative to the first fixing member 523 so that the angle between the first chute 501 and the second chute 502 gradually increases. Among them, the first rotation direction and the second rotation direction are opposite, for example, one of them is the counterclockwise direction and the other is the clockwise direction.

[0048] During the process of the folding device 500 switching from the folded state to the unfolded state, the second housing 120 and the second fixing member 524 rotate in the second rotation direction, that is, the third chute 503 rotates in the second rotation direction, and then drives the second rotating member 523 to rotate in the second rotation direction. At the same time, the second rotating member 522 slides in the third chute 503 in a direction towards the second fixing member 524, driving the second support member 532 to rotate relative to the second fixing member 524 so that the angle between the third chute 503 and the fourth chute 504 gradually increases. Among them, the first rotation direction and the second rotation direction are opposite, for example, one of them is the counterclockwise direction and the other is the clockwise direction.

[0049] It can be understood that the folding housing 100 includes a first housing 110 and a second housing 120. Except for the base 510, there are two sets of other structures in the folding device 500, and they are respectively arranged corresponding to the first housing 110 and the second housing 120. For example, there are two connecting components 520, and the two connecting components 520 are symmetrically distributed on both sides of the base 510 and are respectively connected to the first housing 110 and the second housing 120. Similarly, the other structures (except the base 510) directly or indirectly connected to the connecting component 520 are respectively provided with two and are symmetrically distributed on both sides of the base 510. Due to the symmetrical distribution of the above structures, they will not be repeated here. Among them, the screen-containing space with a water-drop bottom can be formed by the cooperation of the first support member 531, the second support member 532 and the base 510.

[0050] In the foldable electronic device provided by the embodiment of the present application, by fixedly connecting the first fixing member to the first housing and the second fixing member to the second housing, it can be ensured that the rotation angles of the first fixing member and the first housing are the same, and the rotation angles of the second fixing member and the second housing are the same. In the foldable electronic device provided by the embodiment of the present application, by connecting the first rotating member to the first fixing member and the first support member, and connecting the second rotating member to the second fixing member and the second support member, the cooperation relationship between the moving components is reduced, and the structure is simple.

[0051] The applicant found in the research that for a folding-screen mobile phone, the non-display surface of the folding screen is attached to the mobile phone housing. When the mobile phone is bent and used more frequently, the edge of the folding screen is prone to wear, warping, and dropping damage. To solve the above problems, the idea of the technical solution provided by the embodiment of the present application is to protect the edge of the folding screen by setting a decorative member at the edge of the folding screen to prevent defects such as wear, warping, and dropping damage of the edge of the folding screen. Please refer to Figure 3 and Figure 4 , Figure 3 is a schematic structural diagram of the foldable electronic device 60 in some other embodiments of the present application, Figure 4 is Figure 3 a schematic diagram of the structural disassembly of the foldable electronic device 60 in the embodiment. Among them, the foldable electronic device 60 can be the foldable electronic device 10 or the foldable electronic device 10 in the embedding embodiment. Further, the foldable electronic device 60 can be a device such as a mobile phone, a laptop computer, a tablet computer, or a wearable device.

[0052] Specifically, the foldable electronic device 60 may include a folding housing 100 and a flexible screen 200. Figure 3 The direction indicated by the arrow X in Figure 3 can be simply regarded as the long-axis direction of the foldable electronic device, Figure 3The direction indicated by arrow Z can be simply regarded as the thickness direction of the foldable electronic device. Generally, the dimension of the foldable electronic device in the long axis direction is greater than its dimension in the short axis direction.

[0053] Furthermore, the flexible screen 200 is configured to be foldable around the folding line L under the drive of the folding housing 100. Wherein, a folding device may be provided in the folding housing 100 so that the folding housing 100 can be folded in the above-mentioned long axis direction, that is, the foldable electronic device 60 is configured to be foldable in the above-mentioned long axis direction. For example, the folding housing 100 may be divided into a first housing 110 and a second housing 120 located on both sides of the folding line L. The first housing 110 and the second housing 120 may be respectively connected to opposite sides of the folding device and can be folded along the folding line L by means of the folding device. The flexible screen 200 may be connected to the folding housing 100 by one or a combination of assembly methods such as clamping, gluing, welding, etc., so that the flexible screen 200 and the folding housing 100 can be folded together along the folding line L. Wherein, the folding device may be the folding device 300 or the folding device 500 in the foregoing embodiments.

[0054] As described above, the flexible screen 200 has a folding area 210 and a non-folding area 220 with an integrated structure. The non-folding area 220 is connected to both sides of the folding area 210. Optionally, the folding area 210 is located in the middle area of the flexible screen 200, and the non-folding areas 220 are located on opposite sides of the folding area 210, that is, there may be two non-folding areas 220. In the unfolded state, the folding area 210 is flattened into a flat shape, and the two non-folding areas 220 are located on opposite sides of the folding area 210, so that the flexible screen 200 can present a flat non-folding state. In the folded state, the folding area 210 can be folded into an arc shape, and the two non-folding areas 220 are located on the same side of the folding area 210 and are close to each other, so that the flexible screen 200 can present a water droplet-shaped folded state.

[0055] Wherein, the folding area 210 may have a symmetrical structure with respect to the folding line L, that is, parameters such as the size and shape of the folding area 210 on both sides of the folding line L may be the same or similar. The non-folding area 220 is connected to the side of the folding area 210, that is, the non-folding area 220 is connected to the edge of the folding area 210 that is oppositely arranged with respect to the folding line L in the above-mentioned long axis direction. Optionally, the non-folding area 220 may have a symmetrical structure with respect to the folding area 210, that is, the two parts of the non-folding area 220 that are oppositely arranged in the above-mentioned long axis direction and are located on both sides of the folding area 210 may have the same or similar parameters such as size and shape.

[0056] The foldable electronic device 60 may further include a decorative member 700. The decorative member 700 has a portion surrounding the periphery of the edge of the flexible screen 200. It can be understood that the decorative member 700 surrounds at least a part of the peripheral edge of the flexible screen 200, which can protect the edge of the flexible screen 200 and prevent defects such as wear, warping, and drop damage of the edge of the flexible screen 200. Among them, the folding housing 100 is configured to carry the flexible screen 200 and / or the decorative member 700.

[0057] Referring to Figure 5 , Figure 5 is Figure 3 a schematic cross-sectional structure diagram of area A of the foldable electronic device 60 in the B-B direction in an embodiment. Among them, the plane where the cross-section is located may be parallel to the XZ plane. The first housing 110 may include a first middle plate 101 and a first frame 102 extending from the edge of the first middle plate 101. The first middle plate 101 may be configured to carry the flexible screen 200, and the first frame 102 may be configured to carry the decorative member 700. Similarly, the second housing 120 may include a second middle plate and a second frame (not shown in the figure) extending from the edge of the second middle plate. The second middle plate may be configured to carry the flexible screen 200, and the second frame may be configured to carry the decorative member 700. Among them, the first middle plate of the first housing 110 and the second middle plate of the second housing 120 are located on opposite sides of the folding device and jointly form the middle plate of the folding housing 100. The first frame of the first housing 110 and the second frame of the second housing 120 are located on opposite sides of the folding device and jointly form the frame of the folding housing 100.

[0058] Furthermore, the frame of the folding housing 100 surrounds at least a part of the outer periphery of the middle plate, and the two can be integrally formed by processes such as injection molding, stamping molding, and thermoforming. Among them, the frame may be formed by extending the side wall of the middle plate in the thickness direction of the middle plate, so that open structures can be formed on both opposite sides of the folding housing 100. In some embodiments, the middle plate and the frame may also be two independent structural members, and the two can be connected by one or a combination of assembly methods such as snap connection, bonding, and welding. The material of the folding housing 100 may be glass, metal, hard plastic, etc., so that the folding housing 100 has a certain structural strength.

[0059] It can be understood that the structures of the first housing 110 and the second housing 120 are generally the same. To avoid repeated description, in the following text of this application, the middle plate and the frame of the folding housing 100 are used to summarize the first middle plate and the first middle frame of the first housing 110, and the second middle plate and the second middle frame of the second housing 120. For example, the middle plate and the frame of the folding housing 100 described below are the first middle plate 101 and the first frame 102 of the first housing 110.

[0060] Further, the decorative member 700 includes a first decorative member provided on the first frame and a second decorative member provided on the second frame. That is, the first decorative member and the second decorative member are located on opposite sides of the folding device and together constitute the decorative member 700 of the foldable electronic device 60. Based on this, in the following text of this application, the first decorative member and the second decorative member of the decorative member 700 are summarized by the decorative member 700 of the foldable electronic device 60.

[0061] Figure 5 The black border width of the foldable electronic device 60 in Figure 5 is mainly defined by the dimensions A to E shown in

[0062] Referring to Figure 6 , Figure 6 is a schematic diagram of the laminated dislocation structure when the flexible screen 200 is folded in some embodiments of the present application. The flexible screen 200 is generally formed by laminating multiple film layers, so that when the flexible screen 200 is folded, dislocation is likely to occur between the laminated layers. For example, the flexible screen 200 may include a substrate 200a, a display layer 200b, a polarizer 200c, an ultra-thin glass 200d, and a protective layer 200e that are sequentially laminated. Among them, the film layer (such as the substrate 200a) of the flexible screen 200 close to the middle plate 101 is generally adhesively connected to the middle plate through a colloid. When the flexible screen 200 is folded, dislocation is likely to occur between the laminated layers. In particular, the dislocation distance of the film layer (such as the protective layer 200b) of the flexible screen 200 away from the middle plate 101 is the largest. The dislocation of the film layer (such as the protective layer 150) of the flexible screen 200 away from the middle plate 101 generally refers to the movement of the film layer (such as the protective layer 150) of the flexible screen 200 away from the middle plate 101 relative to the middle plate 101 when the flexible screen 200 is folded. The dislocation range, that is, the movement range, can generally be 0.1 - 0.4 mm.

[0063] It can be understood that since the bottom layer of the flexible screen 200, that is, the film layer where the flexible screen 200 is bonded to the middle plate 101, is bonded to the middle plate 101 through a colloid, when the flexible screen 200 is folded, the film layer hardly moves relative to the middle plate 101, while other film layers generally shift to varying degrees, especially the top layer of the flexible screen 200, which has the largest shift. Furthermore, for an inward-folding foldable electronic device, when the flexible screen 200 switches from an unfolded form to a folded form, the flexible screen 200 shifts toward the direction of the frame 102. In other words, the distance between the top layer (such as the protective layer 150) of the flexible screen 200 and the frame 102 in the unfolded form is greater than the distance between it and the frame 102 in the folded form, and the difference between the distances between the two forms is the shift value or shift range.

[0064] It should be noted that the multiple film layers of the flexible screen 200 of this embodiment are exemplified by taking the stacked substrate 200a, display layer 200b, polarizer 200c, ultra-thin glass 200d and protective layer 200e as examples. When the film layers of the flexible screen 200 change, the description can be adaptively adjusted. This application aims to illustrate the difference in displacement values ​​of film layers at multiple different positions of the flexible screen 200 when folded, that is, the displacement value of the film layer of the flexible screen 200 bonded to the middle plate when folded is relatively small, while the displacement value of the film layer of the flexible screen 200 that is away from the middle plate, that is, the surface film layer of the flexible screen 200, is relatively large when folded. When the number of film layers stacked in the flexible screen 200 is more, the displacement range when folded will be relatively larger.

[0065] Based on this, taking into account the fitting tolerance between the flexible screen 200 and the folding shell 100, as well as the stacking displacement when the flexible screen 200 is folded, the general design range of the B dimension can be 0.5-1.0 mm.

[0066] The C dimension may be the overlap support width between the decorative piece 700 and the folding housing 100 (e.g., the frame 102) to prevent the decorative piece 700 from sagging or even squeezing the flexible screen 200. The C dimension may generally be designed to be in the range of 0.3-0.8 mm, so that the folding housing 100 can provide a good support effect on the decorative piece 700 and prevent the decorative piece 700 from deforming.

[0067] The D dimension may be the glue dispensing width of the decorative element 700 bonded to the folding housing 100. The D dimension may generally be designed to be in the range of 0.5-1.0 mm, so as to achieve a better bonding effect between the decorative element 700 and the folding housing 100 and avoid misalignment of the decorative element 700.

[0068] The dimension E can be the overlapping width between the decorative member 700 and the outer side of the folding housing 100 to avoid the appearance of exposed dispensing, which affects the overall appearance of the product. Among them, the general design range of the dimension E is 0.1-0.4 mm to shield the outer gap between the decorative member 700 and the folding housing 100 and prevent the glue from being exposed.

[0069] In summary, the sum of the dimensions of the black edge width of the foldable electronic device 60 excluding the black edge dimension A of the flexible screen 200 itself (i.e., B + C + D + E) can be 1.4-3.2 mm.

[0070] Refer to again Figure 5 , in the thickness direction of the flexible screen 200, the decorative member 700 protrudes from the flexible screen 200. That is, the decorative member 700 covers and protrudes from the edge of the flexible screen 200 to protect the edge of the flexible screen 200. In addition, the decorative member 700 covering and protruding from the edge of the flexible screen 200 can seal the gap between the flexible screen 200 and the folding housing 100, preventing foreign objects, water vapor, etc. from entering the gap between the flexible screen 200 and the folding housing 100, and further preventing foreign objects from entering the gap and squeezing and damaging the flexible screen 200. Among them, the height of the decorative member 700 protruding from the flexible screen 200 is generally 0.3-0.8 mm. By setting it like this, the decorative member 700 is bound to extend above the edge of the flexible screen 200 to shield the gap between the flexible screen 200 and the frame, making it difficult to reduce the width of the decorative member 700 and being unfavorable for cost control.

[0071] Based on this, the following gives improvement solutions for how to reduce the black edge width of the foldable electronic device 60 and how to reduce the width of the decorative member 700 respectively, so as to reduce the width of the decorative member 700 while reducing the black edge width of the foldable electronic device 60.

[0072] As described above, the foldable electronic device includes a folding housing, a flexible screen, and a folding device. The folding housing includes a first housing and a second housing, and the first housing and the second housing are rotatably connected by the folding device. The flexible screen has an integrally structured folding area and a non-folding area, and the non-folding area is connected to the side of the folding area. Specifically, the first housing includes a first middle plate and a first frame, and the second housing includes a second middle plate and a second frame, that is, the first middle plate and the second middle plate form the middle plate of the folding housing, and the first frame and the second frame form the frame of the folding housing. The folding device includes a base, a connecting component, and a supporting component. One end of the connecting component is rotatably connected to the base, and the other end is rotatably connected to the supporting component so that the folding device can be switched between a folded state and an unfolded state. Among them, the supporting component includes a first supporting member and a second supporting member.

[0073] The following takes Figure 2Taking [example] and combining with the description of the foregoing embodiments, the connection relationship of the flexible screen 200 will be described. Among them, the middle plate of the folding housing 100 is configured to carry the non-folding area 220 of the flexible screen 200, and the support assembly 530 is configured to carry the folding area 210 of the flexible screen 200. Optionally, the non-folding area 220 of the flexible screen 200 can be adhesively connected to the middle plate of the folding housing 100 through the first adhesive 810, and the folding area 210 of the flexible screen 200 can be adhesively connected to the support assembly 530 through the second adhesive 820.

[0074] Furthermore, the support assembly 530 is fixedly connected to the folding area 210 relatively, so that when the folding device 500 is switched from the unfolded state to the folded state, the support assembly 530 can act on the folding area 210 of the flexible screen 200, so that the stack where the flexible screen 200 is connected to the support assembly 530 is displaced in the direction close to the base of the folding device relative to the stack of the flexible screen 200 facing away from the support assembly 530.

[0075] Combined with Figure 2 Refer to Figure 7 , Figure 7 FIG. [figure number] is a schematic diagram of the stack displacement structure when the flexible screen 200 in some other embodiments of the present application is folded. The stack of the flexible screen 200 close to the support assembly 530, that is, the bottom layer (such as the substrate 200a), is adhesively connected to the middle plate through the first adhesive 810 and adhesively connected to the support assembly 530 through the second adhesive 820. Based on the fact that the elastic modulus of the first adhesive 810 is less than the elastic modulus of the second adhesive 820, during the process of the folding device being switched from the unfolded state to the folded state, the support assembly 530 moves relative to the base 510 to drive the folding area of the flexible screen 200 to move to the bent state, and further causes the first adhesive 810 to deform into an italic shape, that is, the stack where the flexible screen 200 is connected to the support assembly 530 is displaced in the direction close to the base of the folding device relative to the stack of the flexible screen 200 facing away from the support assembly 530. By setting the elastic modulus of the first adhesive 810 to be less than the elastic modulus of the second adhesive 820 in the embodiments of the present application, during the process of the folding device being switched from the unfolded state to the folded state, the movement of the support assembly 530 drives the folding area to move to the bent state, and further provides an inward displacement pulling force and displacement for the flexible screen 200, so that the surface of the flexible screen 200, that is, the stack of the flexible screen 200 facing away from the support assembly 530, does not undergo relative displacement or undergoes a small displacement.

[0076] Such as Figure 7 It should be noted that the content in brackets [example] and [figure number] in the translation needs to be filled with specific relevant content according to the actual situation.As shown, the protective layer 200e serves as the surface layer of the flexible screen 200. Before and after folding, the distance between the protective layer 200e and the frame 102 remains almost unchanged. The substrate 200a serves as the bottom layer of the flexible screen 200. The distance between the substrate 200a of the flexible screen 200 and the frame 102 before folding is less than the distance between the substrate 200a of the flexible screen 200 and the frame 102 after folding. The support assembly 530 and the folding area 210 are adhesively connected through a second adhesive 820 with a relatively high modulus of elasticity. When folding, the support assembly 530 moves and rotates relative to the folding line to form a water-drop-shaped screen-containing space. Furthermore, the bottom layer of the flexible screen 200 dislocates relative to the surface layer of the flexible screen 200, and the dislocation direction is away from the frame 102.

[0077] As described above, the B dimension in the black border width of the foldable electronic device is composed of the fitting tolerance between the flexible screen 200 and the folding housing 100 and the lamination dislocation when the flexible screen 200 is folded. Since the fitting tolerance between the flexible screen 200 and the folding housing 100 generally varies little due to the manufacturing process, the size of the B dimension is mainly affected by the lamination dislocation when the flexible screen 200 is folded. In this application, by setting the modulus of elasticity of the second adhesive 820 to be greater than that of the first adhesive 810, when the flexible screen is folded, its dislocation direction is away from the frame, that is, there is almost no dislocation value towards the frame. Thus, the B dimension only requires the fitting tolerance between the flexible screen 200 and the folding housing 100, thereby reducing the B dimension and further reducing the black border width of the foldable electronic device. Among them, the reduction range of the B dimension can be 0.1 - 0.4 mm.

[0078] Among them, the modulus of elasticity of the second adhesive 820 can be 60 - 120 MPa, and the modulus of elasticity of the first adhesive 810 can be 200 - 300 KPa. The modulus of elasticity of the second adhesive 820 can be more than 100 times that of the first adhesive 810, for example, it can be 150 times, or 200 times, etc.

[0079] Please refer to Figure 8 , Figure 8 which is a schematic structural diagram of a foldable electronic device 80 in some other embodiments of this application. Among them, the foldable electronic device 80 can be the foldable electronic device in the foregoing embodiments. Among them, Figure 8 the direction indicated by the arrow X in Figure 8 can be simply regarded as the long axis direction of the foldable electronic device, Figure 8 the direction indicated by the arrow Y in Figure 8 can be simply regarded as the short axis direction of the foldable electronic device, and Figure 8 the direction indicated by the arrow Z in Figure 8 can be simply regarded as the thickness direction of the foldable electronic device. Optionally, the size of the foldable electronic device in the long axis direction is not less than its size in the short axis direction. It can be understood that the technical features not detailed in the foldable electronic device 80 in this embodiment can refer to the description in the foregoing embodiments.

[0080] As described above, the foldable electronic device includes a folding housing, a flexible screen, and a folding device. The folding housing includes a first housing 110 and a second housing 120, and the first housing 110 and the second housing 120 are rotatably connected by the folding device. The flexible screen 200 has a folding area and a non-folding area with an integral structure, and the non-folding area is connected to the side of the folding area. Specifically, the first housing 110 includes a first middle plate and a first frame, and the second housing 120 includes a second middle plate and a second frame, that is, the first middle plate and the second middle plate constitute the middle plate of the folding housing, and the first frame and the second frame constitute the frame of the folding housing. The folding device includes a base, a connecting component, and a supporting component. One end of the connecting component is rotatably connected to the base, and the other end is rotatably connected to the supporting component, so that the folding device can be switched between a folded state and an unfolded state. As Figure 8 shown, the foldable electronic device 80 may include a folding housing 100 and a flexible screen 200. The flexible screen 200 may be connected to one side of the folding housing 100 and cooperate with the folding housing 100 to enclose an accommodation space of the foldable electronic device 80. This accommodation space can be used to install electronic components required for the foldable electronic device 80, such as a battery, a sensor, a circuit board, and a camera, etc.

[0081] Referring to Figure 9 , Figure 9 is Figure 8 a schematic cross-sectional structure diagram of the D area of the foldable electronic device 80 along the C-C direction in the embodiment. The foldable electronic device 80 may further include a transparent cover plate 130 disposed on the display surface of the flexible screen 200. Among them, the surface of the transparent cover plate 130 has the characteristics of being flat and smooth, so as to facilitate the user's touch operations such as clicking, swiping, and pressing. The material of the transparent cover plate may be a rigid material such as glass, or a flexible material such as polyimide (PI) or colorless polyimide (CPI). Among them, the transparent cover plate 130 is disposed on the display surface of the flexible screen 200 and can be adhered together by means of a colloid such as OCA (Optically Clear Adhesive) or PSA (Pressure Sensitive Adhesive).

[0082] The folding housing of the foldable electronic device 80 may include a middle plate 101, a frame 102 extending from the edge of the middle plate 101, and a decorative member 103 provided on the frame 102. The middle plate 101 is configured to carry the flexible screen 200, that is, the middle plate 101 can be adhesively connected to the flexible screen 200 through the first adhesive 810. The frame 102 is disposed around the periphery of the flexible screen 200 and is spaced apart from the flexible screen 200. The decorative member 103 is provided on the frame 102 and surrounds at least a part of the outer peripheral edge of the transparent cover plate 130, and there is a gap between the decorative member 103 and the transparent cover plate 130.

[0083] Further, the transparent cover plate 130 has a first portion 131 overlapping with the flexible screen 200 and a second portion 132 protruding from the edge of the flexible screen 200. Among them, the second portion 132 protrudes from the edge of the flexible screen 200 to form an avoidance space 203 having the B size in the foregoing embodiment. There is a gap between the decorative member 103 and the second portion 132 of the transparent cover plate 130 to match the assembly tolerance between the two. In other words, one end of the second portion 132 is integrally formed with the first portion 132, and there is a gap j between the other end and the decorative member 103.

[0084] In one embodiment, the decorative member 103 is provided on the frame 102, and one end of the decorative member 103 facing away from the frame 102 has an extension portion 1031 extending toward the transparent cover plate 1130. The extension portion 1031 is located on the side of the transparent cover plate 130 facing away from the flexible screen 200, and in the extending direction of the extension portion 1031, the extension portion 1301 is spaced apart from the flexible screen 200. It can be understood that, in Figure 5 the illustrated embodiment, the decorative member 700 needs to extend to the edge of the flexible screen 200 to cover the gap between the flexible screen 200 and the frame 102. However, in the embodiment of the present application, the second portion 132 that expands outward of the transparent cover plate 130 is provided to cover the above-mentioned avoidance space 203, so that the decorative member 103 does not need to extend to the edge of the flexible screen 200, which can greatly reduce the width of the decorative member 103.

[0085] Optionally, the extension portion 1031 extends above the end of the second portion 132 of the transparent cover plate 130 facing away from the first portion 131 to cover the gap j between the transparent cover plate 130 and the decorative member 103, so that the foldable electronic device 80 has better appearance consistency. In addition, in some embodiments, the extension portion 1031 and the second portion 132 can be adhesively connected through a colloid to improve the waterproof and dustproof effects.

[0086] Among them, the overlapping width of the extension part 1031 and the second part 132 is small, generally 0.1-0.3 mm, such as 0.2 mm, etc. Thus, the extension part 1031 does not need to be further extended into the shielding and avoiding space 203, so that the width of the extension part 1031 and the decorative part 103 can be reduced.

[0087] Further, in the extending direction of the extension part 1031, the extension part 1031 is arranged at intervals from the flexible screen 200. In other words, the overlapping width of the extension part 1031 and the second part 132 is small, generally 0.1-0.3 mm, such as 0.2 mm, etc. Thus, the extension part 1031 does not need to be further extended into the shielding and avoiding space 203, so that the width of the extension part 1031 and the decorative part 103 can be reduced.

[0088] In an embodiment, an assembly groove 105 is provided on the folding housing 100. One end of the decorative part 103 is inserted into the assembly groove 105, and the above-mentioned extension part 1031 is provided at the other end. That is, the extension part 1031 is provided at the end of the decorative part 103 protruding from the assembly groove 105 and is arranged at intervals from the assembly groove 105. For example, the assembly groove 105 is formed at the joint of the middle plate 101 and the frame 102. Another example is that the assembly groove 105 is formed on the middle plate 101 or the frame 102. Still another example is that the assembly groove 105 is formed on one side of the middle plate 101 close to the frame 102, or the assembly groove 105 is formed on one side of the frame 102 close to the middle plate 101.

[0089] Further, the end of the decorative part 103 inserted into the assembly groove 105 can be fixedly assembled by glue. Among them, the notch direction of the assembly groove 105 can be consistent with the thickness direction of the flexible screen 200. It can be understood that during the process of assembling the decorative part 103 into the assembly groove 105, glue can be applied around the decorative part 103 to fix the decorative part 103, that is, the end of the decorative part 103 inserted into the assembly groove 105 is connected and fixed to the inner wall of the assembly groove 105 by applying glue. Figure 9As shown, the assembly groove 105 may have a first side wall 1051 and a second side wall 1052 that are oppositely arranged. The second side wall 1052 is disposed on the side of the first side wall 1051 close to the flexible screen 200. That is, the first side wall 1051 can be understood as the outer side wall of the assembly groove 105, and the second side wall 1052 can be understood as the inner side wall of the assembly groove 105. There are gaps between the opposite sides of the end of the decorative member 103 inserted into the assembly groove 105 and the first side wall 1051 and the second side wall 1052 respectively, so as to provide an adhesive space for the colloid. Based on this, the extension portion 1031 extends from the side of the decorative member 103 close to the transparent cover plate 130 towards the direction close to the transparent cover plate 130 to shield the colloid between the decorative member 103 and the second side wall 1052. The side of the decorative member 103 facing away from the transparent cover plate 130 overlaps on the first side wall 1051 to shield the colloid between the decorative member 103 and the first side wall 1051.

[0090] Referring again to Figure 8 and Figure 9 , the foldable electronic device 80 has a first end 801 and a second end 802 that are oppositely arranged, and a third end 803 and a fourth end 804 that are oppositely arranged. The third end 803 and the fourth end 804 are located between the first end 801 and the second end 802. Among them, the first end 801 may be the end of the first housing 110 away from the folding device, and the second end 802 may be the end of the second housing 120 away from the folding device. The third end 803 is formed by the same-side ends of the first housing 110 and the second housing 120, and the fourth end 804 is formed by the other same-side ends of the first housing 110 and the second housing 120. The D area is a partial area of the first end 801.

[0091] It should be noted that the terms "first", "second", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include at least one such feature.

[0092] In one embodiment, the flexible screen 200 may include an integrated display area 201 and a bonding area 202. One end of the bonding area 202 is connected to the edge of the display area 201, and the other end is bent to the non-display surface side of the display area 201. The bonding area 202 is configured to provide a driving signal for the display area 201. It should be noted that the display area 201 can be understood as the pixel distribution area of the flexible screen 200, and the bonding area 202 can be understood as the distribution area of the driving IC and the FPC cable of the flexible screen 200. The driving IC of the bonding area 202 is electrically connected to the pixels of the display area 201 and is signal-connected to the circuit board of the foldable electronic device 80 through the FPC cable, so as to drive the pixels of the display area 201 to achieve the display function. The driving IC of the bonding area 202 mainly controls the voltage of the display area 201 to control the brightness of each pixel, and the FPC cable is the connection carrier between the driving IC of the bonding area 202 and the internal circuit board of the foldable electronic device 80.

[0093] It can be understood that in this embodiment, the display area 201 and the bonding area 202 of the flexible screen 200 and the folding area 210 and the non-folding area 220 of the flexible screen 200 in the foregoing embodiment are divided based on different logics for the structure of the flexible screen 200. Among them, the display area 201 may include the folding area 210, and the bonding area 202 may be formed on one end of the non-folding area 220 away from the folding area 210.

[0094] Among them, the bonding area 202 of the flexible screen 200 may be located within the first end 801 of the foldable electronic device 80. That is, in the first end 801 of the foldable electronic device 80, in the thickness direction of the flexible screen 200, the height of the second side wall 1052 protruding from the bottom wall of the assembly groove 105 is greater than the height of the first side wall 1051 protruding from the bottom wall of the assembly groove 105. That is, the second side wall 1052 extends from the bottom wall of the assembly groove 105 to the lower part of the second part 132 of the transparent cover plate 130. The second side wall 1052 is spaced from the flexible screen 200, and the avoidance space 203 described in the foregoing embodiment is formed therebetween. Optionally, in the thickness direction of the flexible screen 200, the part of the second side wall 1052 opposite to the bonding area 202 of the flexible screen 200 protrudes from the first side wall 1051 opposite thereto, and the end of the second part 132 of the transparent cover plate 130 away from the first part 131 overlaps on the part of the second side wall 1052 opposite to the bonding area 202 to shield the above-mentioned avoidance space 203. Among them, the end of the second part 132 away from the first part 131 can be adhesively bonded to the part of the second side wall 1052 opposite to the bonding area 202 through a colloid.

[0095] In other words, the bonding area 202 is disposed opposite to a part of the second sidewall 1052. In the thickness direction of the flexible screen 200, this part of the second sidewall 1052 protrudes from the first sidewall 1051, and the end of the second part 132 of the transparent cover plate 130 departing from the first part 131 overlaps on the above-mentioned part of the second sidewall 1052.

[0096] For the convenience of the following related descriptions, the corresponding parts of the flexible screen 200 and the second sidewall 1052 are defined as follows: The flexible screen 200 may include a first screen end 2001 and a second screen end 2002 which are disposed opposite to each other, and a third screen end 2003 and a fourth screen end 2004 which are disposed opposite to each other. The third screen end 2003 and the fourth screen end 2004 are located between the first screen end 2001 and the second screen end 2002. Among them, the first screen end 2001 may be the end of the bonding area 202 of the flexible screen 200 departing from the display area 201, and the second screen end 2002 may be the end of the display area 201 of the flexible screen 200 departing from the bonding area 202.

[0097] The second sidewall 1052 may include a first sub-wall 1052a and a second sub-wall 1052b which are disposed opposite to each other, and a third sub-wall 1052c and a fourth sub-wall 1052d which are disposed opposite to each other; the third sub-wall 1052c and the fourth sub-wall 1052d are located between the first sub-wall 1052a and the second sub-wall 1052b. Among them, the first sub-wall 1052a corresponds to the first screen end 2001, the second sub-wall 1052b corresponds to the second screen end 2002, the third sub-wall 1052c corresponds to the third screen end 2003, and the fourth sub-wall 1052d corresponds to the fourth screen end 2004.

[0098] As Figure 9 shown, in the thickness direction of the flexible screen 200, the first sub-wall 1052a protrudes from the first sidewall 1051, and the end of the second part 132 of the transparent cover plate 130 departing from the first part 131 overlaps on the first sub-wall 1052a. Among them, the distance between the first screen end 2001 and the first sub-wall 1052a is configured to form the above-mentioned avoidance space 203.

[0099] Please refer to Figure 10 , Figure 10 is Figure 8A schematic diagram of the cross-sectional structure of the E region of the foldable electronic device 80 along the CC direction in the embodiment, wherein the E region is a local region of the second end 802. Specifically, in the E region, the second sub-wall 1052b of the second side wall 1052 is arranged corresponding to the second screen end 2002 of the flexible screen 200. Among them, the spacing between the second screen end 2002 and the decorative member 103 is configured to form the above-mentioned avoidance space 203. Furthermore, the second part 132 of the transparent cover 130 is spaced apart from the second sub-wall 1052b, that is, the spacing between the second part 132 and the second sub-wall 1052b can be used as a part of the above-mentioned avoidance space 203.

[0100] See also Figure 11 , Figure 11 is a schematic diagram of the cross-sectional structure of the E region along the CC direction in some other embodiments of the present application, Figure 11 Example and Figure 10 The difference between the embodiments is that the second sub-wall 1052b protrudes from the first side wall 1051. Based on this, the end of the second part 132 of the transparent cover plate 130 that is away from the first part 131 is overlapped on the second sub-wall 1052b. It should be noted that the term "overlap" in the present application can be a direct contact connection between the two, or a small gap between the two, that is, a non-contact connection, or a gap between the two and a colloid filled in the gap so that the two are bonded. Optionally, the second part 132 and the second sub-wall 1052b can be bonded by a colloid.

[0101] See also Figure 12 , Figure 12 yes Figure 8 A schematic diagram of the cross-sectional structure of the F region / G region of the foldable electronic device 80 along the HH direction in the embodiment, wherein the F region is a local region of the third end 803 , and the G region is a local region of the fourth end 804 .

[0102] In the F region, the third sub-wall 1052c of the second side wall 1052 is arranged corresponding to the third screen end 2003 of the flexible screen 200. The distance between the third screen end 2003 and the decorative element 103 is configured to form the above-mentioned avoidance space 203. Further, the second portion 132 of the transparent cover 130 is spaced apart from the third sub-wall 1052c, that is, the distance between the second portion 132 and the third sub-wall 1052c can be used as a part of the above-mentioned avoidance space 203.

[0103] In the G region, the fourth sub-wall 1052d of the second side wall 1052 is arranged corresponding to the fourth screen end 2004 of the flexible screen 200. The distance between the fourth screen end 2004 and the decorative element 103 is configured to form the above-mentioned avoidance space 203. Further, the second portion 132 of the transparent cover 130 is spaced apart from the fourth sub-wall 1052d, that is, the distance between the second portion 132 and the fourth sub-wall 1052d can be used as a part of the above-mentioned avoidance space 203.

[0104] See also Figure 13 , Figure 13 is a schematic diagram of the cross-sectional structure of the F region / G region along the HH direction in some other embodiments of the present application, Figure 13 Example and Figure 12 The difference between the embodiments is that: in the F region, the third sub-wall 1052c protrudes from the first side wall 1051; based on this, the end of the second portion 132 of the transparent cover plate 130 that is away from the first portion 131 overlaps the third sub-wall 1052c. In the G region, the fourth sub-wall 1052d protrudes from the first side wall 1051. Based on this, the end of the second portion 132 of the transparent cover plate 130 that is away from the first portion 131 overlaps the fourth sub-wall 1052d.

[0105] The width of the end of the second portion 132 of the transparent cover plate 130 that is away from the first portion 131 and overlapped on the second side wall 1052 may be 0.1-0.5 mm, for example, 0.2 mm, 0.3 mm or 0.4 mm, etc. Optionally, the width of the second portion 132 overlapped on the first sub-wall 1052a, the second sub-wall 1052b, the third sub-wall 1052c and the fourth sub-wall 1052d may be completely the same or different, and the present application does not impose any specific limitation on this.

[0106] Optionally, the second portion 132 and the third sub-wall 1052c may be connected by adhesive bonding. Optionally, the second portion 132 and the fourth sub-wall 1052d may be connected by adhesive bonding.

[0107] See also Figures 14 to 16 , Figure 14 is a schematic diagram of the cross-sectional structure of the D region along the CC direction in some other embodiments of the present application, Figure 15 is a schematic diagram of the cross-sectional structure of the E region along the CC direction in some other embodiments of the present application, Figure 16 It is a schematic diagram of the cross-sectional structure of the F region / G region along the HH direction in other embodiments of the present application.

[0108] like Figure 14As shown, in the extending direction of the extension part 1031, the extension part 1031 is adjacent to or spaced from the end of the second part 132 departing from the first part 131. In the thickness direction of the flexible screen 200, the first sub-wall 1052a protrudes from the first side wall 1051, and the end of the second part 132 departing from the first part 131 overlaps on the first sub-wall 1052a. Wherein, the distance between the first screen end 2001 and the first sub-wall 1052a is configured to form the above-mentioned avoidance space 203.

[0109] As Figure 15 shown, in the extending direction of the extension part 1031, the extension part 1031 is adjacent to or spaced from the end of the second part 132 departing from the first part 131. In the thickness direction of the flexible screen 200, the second sub-wall 1052b protrudes from the first side wall 1051, and the end of the second part 132 departing from the first part 131 overlaps on the second sub-wall 1052b. Wherein, the distance between the second screen end 2002 and the second sub-wall 1052b is configured to form the above-mentioned avoidance space 203.

[0110] As Figure 16 shown, in the extending direction of the extension part 1031, the extension part 1031 is adjacent to or spaced from the end of the second part 132 departing from the first part 131. In the thickness direction of the flexible screen 200, the third sub-wall 1052c / the fourth sub-wall 1052d protrudes from the first side wall 1051, and the end of the second part 132 departing from the first part 131 overlaps on the third sub-wall 1052c / the fourth sub-wall 1052d. Wherein, the distance between the third screen end 2003 and the third sub-wall 1052c, or the distance between the fourth screen end 2004 and the fourth sub-wall 1052d is configured to form the above-mentioned avoidance space 203.

[0111] It can be understood that in Figures 14 to 16 the shown embodiment, in the extending direction of the extension part 1031, the extension part 1031 is adjacent to or spaced from the end of the second part 132 departing from the first part 131. That is, the extension part 1031 and the second part 132 have no overlapping part, and it is only used to shield the colloid between the decorative part 103 and the second side wall 1052, which can further reduce the width of the decorative part 103. Optionally, the distance between the extension part 1031 and the end of the second part 132 of the transparent cover plate 130 departing from the first part 131 does not exceed 0.2 mm.

[0112] Optionally, in some embodiments, a protective film layer structure such as PET, PI, etc. can be pasted on the surface of the transparent cover plate 130 departing from the flexible screen 200. This method is within the understanding of those skilled in the art, so it will not be elaborated here.

[0113] The foldable electronic device provided by the embodiment of the present application has an elastic modulus of the bonding support assembly and the second adhesive in the folding area greater than that of the first adhesive bonding the middle plate and the non-folding area, so that when the flexible screen is folded, the stack where the flexible screen is connected to the support assembly dislocates towards the direction close to the base relative to the stack of the flexible screen away from the support assembly, that is, the dislocation value of the flexible screen towards the frame direction is almost zero, thereby reducing the black edge width of the foldable electronic device. In addition, by setting the transparent cover plate to expand to cover the gap between the flexible screen and the frame / decorative member, that is, by setting the transparent cover plate to expand to cover the avoidance space between the flexible screen and the frame / decorative member, it is possible to prevent the extension of the decorative member from extending above the edge of the flexible screen, thereby narrowing the width of the extension on the decorative member, and further achieving the effect of narrowing the width of the decorative member.

[0114] It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or settings.

[0115] The above are only some embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A foldable electronic device, characterized in that, The foldable electronic device includes: A flexible screen having a folding area and a non-folding area, the non-folding area being connected to both sides of the folding area; and A folding device including a base, a connecting component, and a supporting component. One end of the connecting component is rotatably connected to the base, and the other end is rotatably connected to the supporting component, so that the folding device can be switched between a folded state and an unfolded state. The supporting component is fixedly connected to the folding area of the flexible screen; Wherein, during the process of the folding device switching from the unfolded state to the folded state, the stack of the flexible screen connected to the supporting component is displaced in a direction close to the base relative to the stack of the flexible screen facing away from the supporting component.

2. The foldable electronic device according to claim 1, wherein The foldable electronic device further includes a folding housing, the folding housing including a middle plate and a frame extending from the edge of the middle plate. The middle plate is configured to carry the non-folding area of the flexible screen; wherein, the non-folding area is adhesively connected to the middle plate through a first adhesive, and the folding area is adhesively connected to the supporting component through a second adhesive. The elastic modulus of the first adhesive is less than the elastic modulus of the second adhesive.

3. The foldable electronic device according to claim 2, wherein The elastic modulus of the second adhesive is 60 - 120 MPa, and the elastic modulus of the first adhesive is 200 - 300 KPa.

4. The foldable electronic device according to any one of claims 1 to 3, wherein The foldable electronic device further includes a folding housing, the folding housing including a first housing and a second housing; opposite ends of the folding device are respectively connected to the first housing and the second housing; The supporting component includes a first supporting member and a second supporting member arranged oppositely; the connecting component includes a first connecting component and a second connecting component arranged oppositely, and the first connecting component and the second connecting component are respectively rotatably connected to opposite sides of the base; The first connecting component includes a first rotating member and a first fixing member. The first fixing member is fixed on the first housing and rotatably connected to the first supporting member. One end of the first rotating member is rotatably connected to the first supporting member, and the other end is rotatably connected to the base; wherein, when the first rotating member and the base rotate relative to each other, the first rotating member slides in a direction away from or close to the first fixing member to change the angle between the first supporting member and the first fixing member; The second connecting component includes a second rotating member and a second fixing member. The second fixing member is fixed on the second housing and rotatably connected to the second supporting member. One end of the second rotating member is rotatably connected to the second supporting member, and the other end is rotatably connected to the base; wherein, when the second rotating member and the base rotate relative to each other, the second rotating member slides in a direction away from or close to the second fixing member to change the angle between the second supporting member and the second fixing member.

5. The foldable electronic device according to claim 1, wherein The foldable electronic device further includes a transparent cover plate disposed on the display surface of the flexible screen. The transparent cover plate has a first portion overlapping with the flexible screen and a second portion protruding beyond the edge of the flexible screen. The foldable electronic device further includes a folding housing, which includes a middle plate, a frame extending from the edge of the middle plate, and a decorative member disposed on the frame. Wherein, the decorative member surrounds at least a part of the outer periphery of the transparent cover plate, and one end of the decorative member facing away from the frame has an extension portion extending towards the transparent cover plate, and the extension portion is located on the side of the transparent cover plate facing away from the flexible screen.

6. The foldable electronic device according to claim 5, wherein, The extension portion extends above the end of the second portion facing away from the first portion to cover the gap between the transparent cover plate and the decorative member; the overlapping width of the extension portion and the second portion is 0.1-0.3 mm.

7. The foldable electronic device according to claim 5, wherein In the extending direction of the extension portion, the extension portion is adjacent to or spaced from the end of the second portion facing away from the first portion; the distance between the extension portion and the end of the second portion facing away from the first portion does not exceed 0.2 mm.

8. The foldable electronic device according to any one of claims 5 to 7, characterized in that, An assembly groove is provided on the folding housing. The assembly groove includes a first side wall and a second side wall disposed opposite to each other. The second side wall is disposed on the side of the first side wall close to the flexible screen. One end of the decorative member is inserted into the assembly groove, and the extension portion is provided at the other end.

9. The foldable electronic device according to claim 8, wherein The flexible screen includes a display area and a binding area. One end of the binding area is connected to the edge of the display area, and the other end is bent to the non-display surface side of the display area. The flexible screen includes a first screen end and a second screen end disposed opposite to each other, a third screen end and a fourth screen end disposed opposite to each other. The third screen end and the fourth screen end are located between the first screen end and the second screen end. The first screen end is the end of the binding area facing away from the display area; the second screen end is the end of the display area facing away from the binding area. The second side wall includes a first sub-wall and a second sub-wall disposed opposite to each other, a third sub-wall and a fourth sub-wall disposed opposite to each other. The first sub-wall corresponds to the first screen end, the second sub-wall corresponds to the second screen end, the third sub-wall corresponds to the third screen end, and the fourth sub-wall corresponds to the fourth screen end. Wherein, in the thickness direction of the flexible screen, the first sub-wall protrudes from the first side wall, and the end of the second portion facing away from the first portion overlaps on the first sub-wall.

10. The foldable electronic device according to claim 9, wherein In the thickness direction of the flexible screen, the second portion is spaced from the second sub-wall.

11. The foldable electronic device according to claim 9, wherein, In the thickness direction of the flexible screen, the second sub-wall protrudes from the first side wall, and the end of the second portion facing away from the first portion overlaps on the second sub-wall.

12. The foldable electronic device according to claim 9, wherein, In the thickness direction of the flexible screen, the second portion is spaced from the third sub-wall; and / or the second portion is spaced from the fourth sub-wall.

13. The foldable electronic device according to claim 9, wherein, In the thickness direction of the flexible screen, the third sub-wall protrudes from the first side wall, and the end of the second portion facing away from the first portion overlaps on the third sub-wall; And / or, the fourth sub-wall protrudes from the first sidewall, and the end of the second part facing away from the first part overlaps on the fourth sub-wall.

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