Electronic device

By adding an anti-crease component between the hinge assembly, the mid-frame assembly, and the flexible screen assembly, the crease height of the flexible screen is reduced by using tension, thus solving the problem of creases after multiple bends of the flexible screen and improving display performance and appearance.

CN115602049BActive Publication Date: 2026-02-17GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
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Patent Information

Application Number
CN202110724476.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-06-28
Publication Date
2026-02-17
Estimated Expiration
2041-08-02

AI Technical Summary

Technical Problem

Flexible screens are prone to developing dents or bulges after repeated bending, which affects display performance and appearance.

Method used

An anti-crease component is added between the hinge assembly, the mid-frame assembly, and the flexible screen assembly. The anti-crease component applies a pulling force to the flexible screen assembly away from the hinge assembly, thereby reducing the crease height.

Benefits of technology

Effectively reduce or eliminate creases in flexible screens, improving the display performance and appearance of electronic devices.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application provides an electronic device, which comprises a rotating shaft assembly, a middle frame assembly, a flexible screen assembly and an anti-fold assembly. The rotating shaft assembly comprises a rotating shaft and a plate body assembly connected to the rotating shaft. At least part of the middle frame assembly is arranged on opposite sides of the rotating shaft assembly, and a gap is formed between the plate body assembly and the middle frame assembly. The flexible screen assembly is arranged on one side of the rotating shaft assembly and the middle frame assembly. The anti-fold assembly is arranged between the flexible screen assembly and the middle frame assembly, and is connected to the flexible screen assembly. The anti-fold assembly is used to exert a pulling force on the flexible screen assembly away from the rotating shaft assembly, so as to reduce the height of the fold. The anti-fold assembly is arranged to exert a pulling force on the flexible screen assembly away from the rotating shaft assembly. Under the action of the pulling force, the flexible screen has a tendency to be pulled outward and restored to its original state. The convex or concave fold gradually becomes flat, so as to reduce the height of the fold, even completely eliminate the fold, and improve the display performance and appearance performance of the electronic device.
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Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, specifically relating to electronic equipment. Background Technology

[0002] Flexible electronic devices are increasingly popular due to their bendability and versatility. However, users' expectations and demands for electronic devices are also rising. For example, due to the structure and materials of flexible screens, creases can form in the bending areas after repeated bending, affecting display performance and appearance. Summary of the Invention

[0003] In view of this, this application provides an electronic device, including:

[0004] A pivot assembly, including a pivot and a plate assembly connecting the pivot;

[0005] A mid-frame assembly, at least a portion of which is disposed on opposite sides of the pivot assembly;

[0006] A flexible screen assembly is disposed on one side of the hinge assembly and the mid-frame assembly; and

[0007] An anti-crease component is disposed between the flexible screen component and the mid-frame component. The anti-crease component is connected to the flexible screen component and is used to apply a tensile force away from the pivot component to the flexible screen component to reduce the height of the crease.

[0008] The electronic device provided in this application adds an anti-crease component to the hinge assembly, mid-frame assembly, and flexible screen assembly. The anti-crease component is positioned between the flexible screen assembly and the hinge and mid-frame assemblies, and is connected to the flexible screen assembly. The anti-crease component allows for the application of a tensile force away from the hinge assembly to the flexible screen assembly. Under this force, the flexible screen tends to stretch outwards and return to its original shape. Therefore, under this tensile force, raised or recessed creases gradually flatten, reducing the crease height or even eliminating it completely, thus improving the display performance and aesthetics of the electronic device. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0010] Figure 1 This is a cross-sectional schematic diagram of an electronic device according to one embodiment of this application.

[0011] Figure 2 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application.

[0012] Figure 3 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application.

[0013] Figure 4 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application.

[0014] Figure 5 This is a schematic diagram illustrating the principle of a flexible screen assembly having creases in one embodiment of this application.

[0015] Figure 6 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application.

[0016] Figure 7 This is a schematic diagram illustrating the principle of a flexible screen assembly having creases in another embodiment of this application.

[0017] Figure 8 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application.

[0018] Figure 9 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application.

[0019] Figure 10 This is a schematic diagram illustrating the principle of a flexible screen component having creases in another embodiment of this application.

[0020] Figure 11 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application.

[0021] Figure 12 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application.

[0022] Figure 13 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application.

[0023] Figure 14 This is a cross-sectional schematic diagram of an anti-crease component according to one embodiment of this application.

[0024] Figure 15 This is a top view of the anti-crease component according to one embodiment of this application.

[0025] Figure 16 This is a schematic diagram of the anti-crease component and the flexible screen component in one embodiment of this application.

[0026] Label Explanation:

[0027] Electronic device-1, hinge assembly-10, hinge-11, plate assembly-12, first plate-121, second plate-122, middle frame assembly-20, gap-21, first gap-211, second gap-212, flexible screen assembly-30, bending area-31, non-bending area-32, crease area-33, crease-34, anti-crease assembly-40, anti-crease component-41, first end-411, second end-412, hole-413, first hole-414, second hole-415, bending part-416, non-bending part-417, first connector-42, second connector-43, third connector-44, filler-50. Detailed Implementation

[0028] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0029] Before introducing the technical solution of this application, let's go over the technical issues in related technologies in detail.

[0030] Flexible electronic devices, due to their bendability and versatility, are increasingly popular among mobile terminal companies, with many releasing bendable screen products. However, users' expectations and requirements for electronic devices are also rising. For example, the appearance of flexible screens has become a significant factor influencing user experience. Because flexible screens consist of multiple layers of different materials, each layer experiences varying forces when bent. This is especially true for the optical adhesive layer within the flexible screen. After repeated bending, a crease can easily form at the bend, either concave or convex, relative to the frame, causing a crease across the entire screen corresponding to that layer. Furthermore, due to structural differences, the crease is not flat but curved. This distorts the image displayed on the screen, reducing display performance and appearance, and impacting user experience. Therefore, further reducing creases on flexible screens while maintaining their characteristics and reliability has become a crucial trend in the future development of electronic devices.

[0031] In view of this, and in order to solve the above problems, this application provides an electronic device. Please refer to the following: Figures 1-2 , Figure 1 This is a cross-sectional schematic diagram of an electronic device according to one embodiment of this application. Figure 2This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application. The accompanying drawings only show partial schematic diagrams of some structures related to this application and do not imply that the dimensions of the electronic device are as shown. This embodiment provides an electronic device 1, specifically, the electronic device 1 includes a hinge assembly 10, a mid-frame assembly 20, a flexible screen assembly 30, and an anti-crease assembly 40. The hinge assembly 10 includes a hinge 11 and a plate assembly 12 connecting the hinge 11. At least a portion of the mid-frame assembly 20 is disposed on opposite sides of the hinge assembly 10, and a gap 21 exists between the plate assembly 12 and the mid-frame assembly 20. The flexible screen assembly 30 is disposed on one side of the hinge assembly 10 and the mid-frame assembly 20. The anti-crease assembly 40 is disposed between the flexible screen assembly 30, the hinge assembly 10, and the mid-frame assembly 20. The anti-crease assembly 40 connects to the flexible screen assembly 30 and is used to apply a tensile force (e.g., a force away from the hinge assembly 10) to the flexible screen assembly 30. Figure 1 and Figure 2 (As shown in F), to reduce the height of crease 34.

[0032] The electronic device 1 provided in this embodiment is mainly a flexible electronic device 1, characterized by its ability to be bent. The number of times the electronic device 1 can be bent is not limited in this embodiment. For example, in one embodiment, the electronic device 1 can be bent once or twice, thereby forming a U-shaped screen after bending. In another embodiment, the electronic device 1 can be bent four times, thereby forming a waterdrop screen after bending.

[0033] The electronic device 1 provided in this embodiment mainly includes a hinge assembly 10, a mid-frame assembly 20, a flexible screen assembly 30, and an anti-crease assembly 40. The hinge assembly 10 is one of the important components of the electronic device 1, used to control the bending of the electronic device 1. The hinge assembly 10 includes a hinge 11 and a plate assembly 12. The hinge 11 is composed of multiple structural components and can be bent. The bending of the hinge 11 can cause the plate assembly 12 to rotate accordingly, thereby causing the flexible screen assembly 30 or other components mounted on the plate assembly 12 to bend as well. In addition, the hinge assembly 10 may also include a decorative piece for the hinge 11 to protect the hinge 11 and prevent it from being visible to the user.

[0034] The mid-frame assembly 20 is a fundamental component of the electronic device 1. Most structural components of the electronic device 1 can be mounted on the mid-frame, such as circuit boards, batteries, flexible screen assembly 30, etc. Furthermore, the mid-frame assembly 20 can be located on opposite sides of the hinge assembly 10, and a gap 21 exists between the plate assembly 12 and the mid-frame assembly 20. Optionally, the plate assembly 12 and the mid-frame assembly 20 are not connected, and the mid-frame assembly 20 can be bent independently via the flexible screen assembly 30 (e.g., ...). Figure 1 (As shown). Alternatively, the middle frame assembly 20 is bent and connected to the pivot 11, allowing the middle frame assembly 20 to rotate via the pivot 11 (as shown). Figure 2 (As shown). To allow the electronic device 1 to be bent, the mid-frame assembly 20 and the plate assembly 12 rotate at different angles. Therefore, the mid-frame assembly 20 cannot be connected to the plate assembly 12 and must rotate independently. This results in the electronic device 1 taking on various shapes after bending, such as a U-shaped screen or a waterdrop screen. However, due to the different bending angles at various points on the flexible screen assembly 30, especially at the junction of the mid-frame assembly 20 and the plate assembly 12, i.e., at the gap 21, abrupt bending occurs. Based on the aforementioned material and structure of the flexible screen assembly 30, a crease 34 will be formed at this location.

[0035] The electronic device 1 provided in this embodiment adds an anti-crease component 40 to the hinge assembly 10, the mid-frame assembly 20, and the flexible screen assembly 30. The anti-crease component 40 is located between the flexible screen assembly 30 and the hinge assembly 10 and the mid-frame assembly 20, and is connected to the flexible screen assembly 30. As its name suggests, the anti-crease component 40 is a component that resists creases 34. The anti-crease component 40 can be used to apply a tensile force away from the hinge assembly 10 to the flexible screen assembly 30. Under the action of the tensile force, the flexible screen tends to be pulled outward and return to its original shape. It can also be understood that if the tensile force is considered in terms of the movement of the flexible screen assembly 30, when the flexible screen assembly 30 bends, the opposite sides of the flexible screen assembly 30 will move towards the flexible screen assembly 30 corresponding to the gap 21, thereby raising the flexible screen assembly 30 corresponding to the gap 21 and forming a crease 34. The anti-crease component 40 allows the flexible screen components 30 on opposite sides of the crease 34 to move away from the crease 34, thereby reducing the height of the crease 34. Therefore, under this tension, the raised or recessed crease 34 gradually flattens, reducing its height or even eliminating it completely. The phrase "reducing the height of the crease 34" refers to a comparison between the height of the crease 34 when the flexible screen component 30 is unfolded and when it is bent. For example, when the flexible screen component 30 is bent, a crease 34 is formed, and its height is 10 micrometers. When the flexible screen component 30 is unfolded, the tension generated by the anti-crease component 40 reduces the height of the crease 34 to 5 micrometers. Furthermore, this tension can also flatten the twisted crease 34 in the direction of the tension, improving the display performance and appearance of the electronic device 1.

[0036] Optionally, the crease 34 can be a crease 34 with crests or a crease 34 with troughs.

[0037] Optionally, this embodiment illustrates the use of two anti-crease components 40, with each anti-crease component 40 corresponding to a second gap 212.

[0038] Please refer to this as well. Figure 3 , Figure 3 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application. In this embodiment, the plate assembly 12 includes a first plate 121 and a second plate 122 disposed on opposite sides of the first plate 121. A first gap 211 is formed between the first plate 121 and the second plate 122, and a second gap 212 is formed between the second plate 122 and the middle frame assembly 20. Part of the anti-crease assembly 40 is disposed corresponding to the second gap 212.

[0039] The plate assembly 12 provided in this embodiment may include a first plate 121 and a second plate 122. The second plate 122 is disposed on opposite sides of the first plate 121, thus there are two first gaps 211 between the first plate 121 and the second plate 122. The middle frame assembly 20 is disposed on opposite sides of the plate assembly 12, that is, on opposite sides of the second plate 122, thus there are two second gaps 212 between the second plate 122 and the middle frame assembly 20. This embodiment can form a waterdrop screen by repeatedly bending through the two first gaps 211 and the two second gaps 212, thereby increasing the versatility of the electronic device 1.

[0040] Furthermore, because the waterdrop screen requires multiple bends at different angles—specifically, the second panel 122 bends relative to the first panel 121, and the mid-frame assembly 20 bends relative to the second panel 122—and the bending directions of the second panel 122 and mid-frame assembly 20 are different—the two second panels 122 bend towards each other, while the two mid-frame assemblies 20 bend away from each other, thus forming the waterdrop screen. Therefore, the second panel 122 forms a concave crease 34 with the first panel 121, while the mid-frame assembly 20 forms a convex crease 34 with the second panel 122, resulting in an M-shaped crease 34.

[0041] Optionally, the corresponding gap 21 setting mentioned below in this application can be understood as the corresponding second gap 212 setting. In other words, the anti-crease component 40 can be used to improve the crease 34 at the crest, and by applying tension, it can not only change the crease 34 at the second gap 212, but also change the crease 34 at the first gap 211, further improving the display performance of the electronic device 1.

[0042] Optionally, the first plate 121 can also be understood as the middle plate of the pivot 11, and the second plate 122 can also be understood as the inclined plate of the pivot 11.

[0043] The specific structure of the anti-crease component 40, and how the anti-crease component 40 reduces the height of the crease 34, will be described in detail below.

[0044] Please refer to this as well. Figures 4-7 , Figure 4 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application. Figure 5 This is a schematic diagram illustrating the principle of a flexible screen assembly having creases in one embodiment of this application. Figure 6 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application. Figure 7 This is a schematic diagram illustrating the principle of a flexible screen assembly with creases in another embodiment of this application. In this embodiment, the flexible screen assembly 30 has a connected bending area 31 and a non-bending area 32. The non-bending area 32 is located on opposite sides of the bending area 31. The bending area 31 corresponds to the pivot assembly 10 and part of the middle frame assembly 20. The non-bending area 32 corresponds to the remaining middle frame assembly 20. A gap 21 exists between the plate assembly 12 and the middle frame assembly 20. The bending area 31 includes a crease area 33, which is provided corresponding to the gap 21.

[0045] The anti-crease assembly 40 includes an anti-crease component 41, a first connector 42, and a second connector 43. The first connector 42 is connected between the mid-frame assembly 20 and the anti-crease component 41, and the second connector 43 is connected between the anti-crease component 41 and the flexible screen assembly 30. The second connector 43 is disposed corresponding to the crease area 33; or, the second connector 43 is disposed on the side of the crease area 33 near the non-bending area 32.

[0046] The flexible screen assembly 30 has a bending area 31 and a non-bending area 32. The bending area 31 is the region where the flexible screen assembly 30 bends when the electronic device 1 is bent, while the non-bending area 32 is the region where the flexible screen assembly 30 does not bend when the electronic device 1 is bent. The bending area 31 corresponds to the hinge assembly 10 and part of the mid-frame assembly 20, while the non-bending area 32 corresponds to the remaining mid-frame assembly 20. Furthermore, the portion of the bending area 31 corresponding to the gap 21 is a crease area 33, meaning that the crease 34 mentioned above will be generated at the gap 21.

[0047] This application describes the specific structures of various anti-crease components 40. In this embodiment, the anti-crease component 40 may include an anti-crease member 41, a first connector 42, and a second connector 43. The anti-crease member 41 is a component that resists creases 34, and the first connector 42 and the second connector 43 are components that fix the anti-crease member 41. This application generates tensile force by utilizing the cooperation of the anti-crease member 41, the first connector 42, and the second connector 43, and by utilizing the different connection positions of the first connector 42 and the second connector 43.

[0048] Specifically, the first connector 42 connects the middle frame assembly 20 and the anti-crease member 41, and the second connector 43 connects the anti-crease member 41 and the flexible screen assembly 30. Alternatively, the first connector 42 and the second connector 43 can be understood as being located on opposite sides of the anti-crease member 41. During rotation, the flexible screen assembly 30 develops a crease 34, meaning it deforms in its extension direction, forming a raised or recessed crease 34. However, the middle frame assembly 20 and the anti-crease member 40 do not deform, and the middle frame assembly 20 is further outward relative to the crease area 33. Therefore, under the action of the anti-crease member 41, the first connector 42, and the second connector 43, the middle frame can apply a tensile force to the flexible screen assembly 30 away from the pivot assembly 10, thereby restoring the deformed flexible screen assembly 30 to its original shape. In this embodiment and in the following text, "outer" and "inner" can be understood as the side of the middle frame assembly 20 that is far away from the pivot assembly 10 being the outer side, and the side of the middle frame assembly 20 that is close to the pivot assembly 10 being the inner side.

[0049] Furthermore, this application provides two configuration methods for the position of the second connector 43. In the first embodiment, as shown... Figure 4 and Figure 5 As shown, the second connector 43 is positioned corresponding to the crease area 33. In this way, the pulling force away from the pivot assembly 10 is positioned directly below or above the crease 34, and under the action of this pulling force, the crease 34 can be "pulled" flat, thereby reducing the height of the crease 34 and improving the display performance and appearance of the electronic device 1.

[0050] In the second implementation, such as Figure 6 and Figure 7As shown, the second connector 43 can be positioned on the side of the crease area 33 closer to the non-bending area 32. Alternatively, the second connector 43 can be positioned outside the crease area 33, not corresponding to it. This allows for the application of pulling force from a distance to flatten the crease 34, reducing its height and improving the display performance and appearance of the electronic device 1. Furthermore, positioning the second connector 43 outside the crease area 33 reduces assembly difficulty and improves the connection between the second connector 43 and the flexible screen assembly 30.

[0051] Optionally, the anti-crease component 41 includes, but is not limited to, a pull-back film. Optionally, the first connector 42 and the second connector 43 include, but are not limited to, a first adhesive layer and a second adhesive layer, that is, the connection method between the first connector 42 and the second connector 43 and the mid-frame assembly 20 and the flexible screen assembly 30 is bonding. It can also be understood that the anti-crease component 41 is bonded to the mid-frame assembly 20 and the flexible screen assembly 30 by adhesive layers.

[0052] Please refer to this again. Figure 4 and Figure 6 In this embodiment, the first connector 42 is farther away from the rotating shaft assembly 10 than the second connector 43.

[0053] In this embodiment, the first connector 42 and the second connector 43 can be staggered, and the first connector 42 can be positioned further away from the hinge assembly 10 than the second connector 43, i.e., the first connector 42 is positioned further outward, and the second connector 43 is positioned further inward. This allows the tensile force generated by the mid-frame assembly 20 to be better transmitted to the hinge assembly 10, increasing the magnitude of the tensile force and further improving the display performance and appearance of the electronic device 1.

[0054] Please refer to this as well. Figure 8 , Figure 8 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application. In this embodiment, the anti-crease member 41 has a first end 411 and a second end 412 disposed opposite to each other. The first end 411 is connected to the first connector 42, and the second end 412 is connected to the second connector 43. The vertical distance between the first end 411 and the middle frame assembly 20 is less than the vertical distance between the second end 412 and the middle frame assembly 20.

[0055] In this embodiment, the anti-crease component 40 can also be tilted, making the vertical distance between the outermost first end 411 and the middle frame component 20 smaller, and the vertical distance between the innermost second end 412 and the middle frame component 20 smaller. This allows the tension generated by the middle frame component 20 to be deflected when transmitted through the tilted anti-crease component 41, directing the tension away from the pivot assembly 10 and closer to the middle frame component 20. This generates a downward component force, further improving the effect of reducing the height of the crease 34, and further improving the display performance and appearance of the electronic device 1.

[0056] Alternatively, in this embodiment, the anti-crease member 41 can be tilted by changing the structure of the anti-crease member 41 or by changing the shape of the first connector 42 and the second connector 43.

[0057] Please refer to this as well. Figures 9-10 , Figure 9 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application. Figure 10 This is a schematic diagram illustrating the principle of a flexible screen assembly with creases in another embodiment of this application. In this embodiment, the flexible screen assembly 30 has a bending area 31, which corresponds to the pivot assembly 10 and part of the middle frame assembly 20. A gap 21 exists between the plate assembly 12 and the middle frame assembly 20. The bending area 31 includes a crease area 33, which is provided corresponding to the gap 21.

[0058] The anti-crease assembly 40 includes an anti-crease component 41, a first connector 42, and a second connector 43. Part of the anti-crease component 41 is disposed corresponding to the crease area 33. The first connector 42 and the second connector 43 are both connected between the anti-crease component 41 and the flexible screen assembly 30, and the first connector 42 and the second connector 43 are disposed on opposite sides of the crease area 33.

[0059] In this embodiment, the flexible screen assembly 30 also has a bending area 31 and a non-bending area 32. The bending area 31 is the region where the flexible screen assembly 30 bends when the electronic device 1 is bent, while the non-bending area 32 is the region where the flexible screen assembly 30 does not bend when the electronic device 1 is bent. The bending area 31 corresponds to the hinge assembly 10 and part of the mid-frame assembly 20, and the non-bending area 32 corresponds to the remaining mid-frame assembly 20. Furthermore, the portion of the bending area 31 corresponding to the gap 21 is a crease area 33, meaning that the crease 34 mentioned above will be generated at the gap 21.

[0060] As can be seen from the above, the tension is generated by connecting the middle frame with the first connector 42 and the flexible screen assembly 30 with the second connector 43. This embodiment introduces another structure for the anti-crease assembly 40. For example, the anti-crease assembly 40 may also include an anti-crease component 41, a first connector 42, and a second connector 43. The anti-crease component 41 is the part that resists the crease 34, and the first connector 42 and the second connector 43 are the parts that fix the anti-crease component 41. This application generates tension by utilizing the cooperation of the anti-crease component 41, the first connector 42, and the second connector 43, and by utilizing the different connection positions of the first connector 42 and the second connector 43.

[0061] Specifically, both the first connector 42 and the second connector 43 are connected between the anti-crease component 41 and the flexible screen assembly 30. That is, both the first connector 42 and the second connector 43 are located on the same side of the anti-crease component 41. Furthermore, the first connector 42 and the second connector 43 are located on opposite sides of the crease area 33, i.e., on both sides of the crease 34. During rotation, the flexible screen assembly 30 generates a crease 34, meaning it deforms in its extension direction, forming a raised or recessed crease 34. However, the anti-crease component 41 does not deform. Therefore, the anti-crease component 41 can provide a force to the flexible screen assembly 30 to restore its original shape through the first connector 42 and the second connector 43. This force, acting in opposite directions, pulls the crease 34 flat from the middle towards both sides of the crease 34. This tension can also be considered as the elastic restoring force exerted by the anti-crease member 41 on the flexible screen assembly 30. One of the opposing tensions is directed away from the hinge assembly 10, while the other is directed closer to the hinge assembly 10. This tension reduces the height of the crease 34, improving the display performance and appearance of the electronic device 1. In summary, this embodiment can apply tension to the opposite sides of the flexible screen using only the anti-crease member 41 itself.

[0062] Optionally, the anti-crease component 41 includes, but is not limited to, a support component. Optionally, the first connector 42 and the second connector 43 include, but are not limited to, a first adhesive layer and a second adhesive layer, that is, the connection method between the first connector 42 and the second connector 43 and the anti-crease component 41 and the flexible screen assembly 30 is bonding. It can also be understood that the anti-crease component 41 is bonded to the flexible screen assembly 30 by an adhesive layer.

[0063] Please also refer to the following: Figure 11 , Figure 11This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application. In this embodiment, the anti-crease component 40 may be provided only in a portion of the area between the mid-frame component 20, the hinge component 10, and the flexible screen component 30, while other areas may be filled with filler 50. Optionally, filler 50 may include, but is not limited to, foam, adhesive, etc.

[0064] Please refer to this as well. Figure 12 , Figure 12 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application. In this embodiment, the anti-crease assembly 40 further includes a third connector 44, which is connected between the anti-crease member 41 and the plate assembly 12.

[0065] In the two anti-crease assembly structures described above, in addition to the first connector 42 and the second connector 43, a third connector 44 may also be included. The third connector 44 is connected between the anti-crease component 41 and the plate assembly 12. That is, the third connector 44 is used to connect the pivot assembly 10 and the plate assembly 12, which can further improve the stability of the anti-crease assembly 40 within the electronic device 1.

[0066] Optionally, the third connector 44 is connected to the second plate 122, that is, connected to the inclined plate of the rotating shaft 11.

[0067] In addition, in this embodiment, the elastic modulus of the third connector 44 is less than the elastic modulus of the first connector 42 and the elastic modulus of the second connector 43.

[0068] This application also allows the elastic modulus of the third connector 44 to be less than that of the first connector 42 and the second connector 43. This can be understood as using a third connector 44 with a lower elastic modulus (i.e., softer) to connect the plate assembly 12 and the anti-crease member 41. This improves connection performance and allows the rotation of the plate assembly 12 to be transferred to the anti-crease member 41 via the third connector 44, making the anti-crease member 41 easier to bend. Furthermore, using a first connector 42 and a second connector 43 with a higher elastic modulus (i.e., stiffer) not only improves connection performance but also enhances the transmission of tensile force, preventing the tensile force from being absorbed by the first connector 42 and the second connector 43. Of course, in other embodiments, the elastic modulus of the third connector 44 can also be greater than or equal to that of the first connector 42 and the second connector 43. Other methods can be used to make the anti-crease member 41 easier to bend, such as by changing the structure of the anti-crease member 41.

[0069] Optionally, the elastic modulus of the first connector 42 and the second connector 43 can be characterized by some parameters, such as 15-20 N / 25 mm under 180° glass beads. Further optionally, the first connector 42 can be adhesive-coated, PET substrate adhesive-coated, PI substrate adhesive-coated, etc.

[0070] Optionally, the elastic modulus of the third connector 44 can be characterized by some parameters, such as 5-10 N / 25 mm under 180° glass grains. Further optionally, the third connector 44 can be an adhesive, acrylic adhesive, or substrate-free pressure-sensitive adhesive.

[0071] In addition, in this embodiment, the elastic modulus of the anti-crease member 41 is greater than that of the flexible screen assembly 30.

[0072] This embodiment can use an anti-crease component 41 with a larger elastic modulus than the flexible screen assembly 30, that is, a stiffer anti-crease component 41. Through the rigid fixation of the anti-crease component 41, the tensile force is better transferred to the flexible screen assembly 30, thereby reducing the height of the crease 34 and improving the appearance of the crease 34. This further improves the display performance and appearance of the electronic device 1.

[0073] Optionally, when the anti-crease component 41 is a pull-back film, the elastic modulus of the anti-crease component 41 is greater than 20 GPA. Further optionally, the anti-crease component 41 can be an inorganic substrate (e.g., stainless steel, copper alloy, carbon fiber, etc.) or an organic substrate (e.g., PET, PI, PC, etc.).

[0074] Optionally, when the anti-creasing component 41 is a support component, the elastic modulus of the anti-creasing component 41 is greater than 100 GPA. Further optionally, the anti-creasing component 41 can be a base material such as stainless steel, titanium alloy, copper alloy, carbon fiber, or a composite material composed of such base materials.

[0075] Please refer to this as well. Figures 13-14 , Figure 13 This is a cross-sectional schematic diagram of an electronic device according to another embodiment of this application. Figure 14 This is a cross-sectional schematic diagram of an anti-crease component according to one embodiment of this application. In this embodiment, some of the anti-crease components 41 are provided corresponding to the gap 21. The anti-crease component 41 has a plurality of holes 413 arranged in an array. The holes 413 penetrate at least one of the surfaces of the anti-crease component 41 that are close to the flexible screen assembly 30 and the surfaces of the anti-crease component 41 that are away from the flexible screen assembly 30.

[0076] In this embodiment, some anti-crease components 40 can be provided corresponding to the gap 21. This allows multiple holes 413 arranged in this row to be formed on the anti-crease component 41, thereby further improving the bending performance of the anti-crease component 41 and enhancing the reliability of the flexible screen assembly 30. Furthermore, the holes 413 in this embodiment can penetrate at least one of the surfaces of the anti-crease component 41 closest to the flexible screen assembly 30 and the surface of the anti-crease component 41 facing away from the flexible screen assembly 30. Alternatively, when the hole 413 only penetrates the surface of the anti-crease component 41 closest to the flexible screen assembly 30, or only penetrates the surface of the anti-crease component 41 facing away from the flexible screen assembly 30, the hole 413 can be considered a blind hole. When the hole 413 simultaneously penetrates both the surface of the anti-crease member 41 near the flexible screen assembly 30 and the surface of the anti-crease member 41 away from the flexible screen assembly 30, the hole 413 can be considered as a through hole.

[0077] Please refer to this again. Figure 14 In this embodiment, the anti-crease component 41 includes a bent portion 416 and a non-bent portion 417 connected to each other. The bent portion 416 is provided corresponding to the gap 21, and the plurality of holes 413 are provided on the bent portion 416.

[0078] Regarding the anti-crease 34, when some anti-crease components 41 are provided corresponding to the gap 21, the bent portion 416 of the anti-crease component 41 will bend along with the flexible screen, while the non-bending portion 417 does not need to be bent. Therefore, in this embodiment, the hole 413 can be provided on the bent portion 416, thereby further improving the bending performance of the anti-crease 34 component and improving the reliability performance of the flexible screen assembly 30.

[0079] Please refer to this as well. Figure 15 , Figure 15 This is a top view of an anti-crease component according to one embodiment of this application. In this embodiment, the plurality of holes 413 includes a first hole 414 and a second hole 415. The second hole 415 is located on opposite sides of the first hole 414. The second hole 415 is closer to the non-bending portion 417 than the first hole 414, and the size of the second hole 415 is smaller than the size of the first hole 414.

[0080] Regarding the size of the holes 413, all holes 413 can be made to be the same size, but this embodiment can also design holes 413 of different sizes. Specifically, the plurality of holes 413 includes a first hole 414 and a second hole 415, wherein the second hole 415 is closer to the non-bending portion 417, and the first hole 414 is farther away from the non-bending portion 417. In this embodiment, the size of the second hole 415 can be smaller than the size of the first hole 414, thereby making the size of the middle first hole 414 larger, further improving the bending performance of the anti-crease member 41.

[0081] Optionally, the plurality of holes 413 may also include a third hole, a fourth hole, etc., disposed between the first hole 414 and the second hole 415, and the size of the holes 413 gradually decreases from the first hole 414 to the second hole 415.

[0082] Please refer to this again. Figure 4 , Figure 6 , Figures 8-9 , Figures 11-13 In this embodiment, there are two anti-crease components 40 and two second gaps 212, with each anti-crease component 40 corresponding to one gap 21.

[0083] In this embodiment, there are two anti-crease components 40, each corresponding to one gap 21. The height of the crease 34 is further reduced by adding one anti-crease component 40 on each of the left and right sides. Furthermore, the structures of the two anti-crease components 40 can be the same or different. In one embodiment, when the two anti-crease components 40 have the same structure, both may include a pull-back membrane or both may include a support member. In another embodiment, when the two anti-crease components 40 have different structures, one anti-crease component 40 can be a pull-back membrane, and the other can be a support member. This application illustrates the case with two identical anti-crease components 40.

[0084] Please refer to this as well. Figure 16 , Figure 16 This is a schematic diagram of an anti-crease component and a flexible screen component according to one embodiment of this application. In this embodiment, a gap 21 is provided between the plate component 12 and the middle frame component 20, and in the extension direction parallel to the gap 21 (e.g., ... Figure 16 (As shown in the D1 direction), the size of the anti-crease component 40 is less than or equal to the size of the flexible screen component 30.

[0085] As can be seen from the above, the anti-crease component 40 can be disposed between the mid-frame component 20 and the hinge component 10 and the flexible screen component 30. However, in one embodiment, in the extension direction parallel to the gap 21, that is, in the width direction of the flexible screen component 30, the size of the anti-crease component 40 can be equal to the size of the flexible screen component 30. In this case, the anti-crease component 40 covers the width of the flexible screen component 30, ensuring that the entire screen is subjected to tension and maintaining a consistent appearance. In another embodiment, the size of the anti-crease component 40 can be smaller than the size of the flexible screen component 30. This allows the anti-crease component 40 to act specifically on areas with larger or higher creases 34, or areas required by the user, achieving precise control. This embodiment is illustrated with the size of the anti-crease component 40 being equal to the size of the flexible screen component 30.

[0086] The above provides a detailed description of the embodiments provided in this application. This document elucidates and explains the principles and implementation methods of this application. The above description is only intended to help understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An electronic device, comprising: The application relates to a flexible screen device, which comprises a rotating shaft assembly, a middle frame assembly and a flexible screen assembly. The rotating shaft assembly comprises a rotating shaft and a plate body assembly connected to the rotating shaft. The middle frame assembly is arranged on opposite sides of the rotating shaft assembly. The flexible screen assembly is arranged on one side of the rotating shaft assembly and the middle frame assembly. The flexible screen assembly has a bending area and a non-bending area. The non-bending area is arranged on opposite sides of the bending area.

2. The electronic device of claim 1, wherein, The bending area corresponds to the rotating shaft assembly and part of the middle frame assembly.

3. The electronic device of any of claims 1-2, wherein, The non-bending area corresponds to the rest of the middle frame assembly.

4. The electronic device of claim 3, wherein, A gap is formed between the plate body assembly and the middle frame assembly.

5. The electronic device of any of claims 1-2, wherein, The bending area comprises a crease area corresponding to the gap.

6. The electronic device of any of claims 1-2, wherein, An anti-crease assembly is arranged between the flexible screen assembly and the middle frame assembly.

7. The electronic device of claim 6, wherein, The anti-crease assembly is connected to the flexible screen assembly.

8. The electronic device of claim 7, wherein, The anti-crease assembly is used to apply a pulling force to the flexible screen assembly away from the rotating shaft assembly to reduce the height of the crease.

9. The electronic device of claim 1, wherein, The anti-crease assembly comprises an anti-crease member, a first connecting member and a second connecting member.

10. The electronic device of claim 9, wherein, The first connecting member is connected between the middle frame assembly and the anti-crease member. The second connecting member is connected between the anti-crease member and the flexible screen assembly. The second connecting member is arranged on one side of the crease area close to the non-bending area. The first connecting member is farther away from the rotating shaft assembly than the second connecting member. The anti-crease member has a first end and a second end arranged oppositely. The first end is connected to the first connecting member. The second end is connected to the second connecting member. The vertical distance between the first end and the middle frame assembly is smaller than the vertical distance between the second end and the middle frame assembly. The anti-crease assembly further comprises a third connecting member connected between the anti-crease member and the plate body assembly. The elastic modulus of the third connecting member is smaller than the elastic modulus of the first connecting member and the elastic modulus of the second connecting member. The elastic modulus of the anti-crease member is greater than the elastic modulus of the flexible screen assembly. Part of the anti-crease member is arranged corresponding to the gap. The anti-crease member is provided with a plurality of holes arranged in an array. The holes penetrate at least one surface of the anti-crease member close to the flexible screen assembly or away from the flexible screen assembly. The anti-crease member comprises a bending part and a non-bending part connected to each other. The plurality of holes are arranged on the bending part. The plurality of holes comprise first holes and second holes. The second holes are arranged on opposite sides of the first holes. The second holes are closer to the non-bending part than the first holes. The size of the second holes is smaller than the size of the first holes. The plate body assembly comprises a first plate body and a second plate body arranged on opposite sides of the first plate body. The first plate body and the second plate body have a first gap therebetween. The second plate body and the middle frame assembly have a second gap therebetween. Part of the anti-crease assembly is arranged corresponding to the second gap. The number of the anti-crease assemblies is two. The number of the second gaps is also two. Each anti-crease assembly is arranged corresponding to one second gap.

11. The electronic device of claim 1, wherein, The plate body assembly and the middle frame assembly have a gap, and in the extension direction parallel to the gap, the size of the anti-fold assembly is less than or equal to the size of the flexible screen assembly.

Citation Information

Patent Citations

  • Flexible display module, preparation method thereof and folding display device

    CN111105718A