Electronic devices

Abstract

The electronic device provided in some embodiments of the present application includes a first body, a second body, a flexible screen and a fluid cavity assembly, wherein the first body and the second body are movably connected, a scroll is provided in the second body, one side of the flexible screen is connected to the first body, and the other side of the flexible screen bypasses the scroll and extends to the inside of the second body. The first cavity and the second cavity are interconnected, and when the second body moves away from the first body, the second body drives the flexible screen to unfold, and the fluid is transferred from the first cavity to the second cavity. After the volume of the second cavity increases, it can support the expansion area of ​​the flexible screen, ensure sufficient support for the flexible screen, and improve the flatness of the flexible screen.

Description

Technical Field

[0001] This application belongs to the field of flexible component technology, specifically relating to an electronic device. Background Technology

[0002] As people demand larger screen sizes for mobile phones and other electronic products, flexible screen technology has continued to develop, making it possible to roll, bend, and fold screens. Rollable designs can provide users with a larger display area within a limited volume, meeting their needs for larger screens.

[0003] However, when existing flexible screens are unfolded, although the expanded screen can provide a larger display area, most of the expanded screen is in a suspended position, which makes it impossible for the expanded screen to be effectively supported, affecting the flatness of the flexible screen and the user experience. Summary of the Invention

[0004] This application aims to provide an electronic device that addresses at least one of the problems of the prior art.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides an electronic device, including:

[0007] A first body and a second body are movably connected, and a scroll is provided inside the second body;

[0008] A flexible screen, one side of which is connected to the first main body, and the other side of which wraps around the scroll and extends into the interior of the second main body;

[0009] A fluid cavity assembly, comprising a first cavity and a second cavity filled with fluid, the first cavity and the second cavity being in communication with each other;

[0010] As the second body moves away from the first body, the second body causes the flexible screen to unfold, and the fluid is transferred from the first cavity to the second cavity so that the second cavity supports the flexible screen.

[0011] In embodiments of this application, an electronic device is provided, comprising a first body, a second body, a flexible screen, and a fluid cavity assembly. The first and second cavities of the fluid cavity assembly are interconnected. As the second body moves away from the first body, the second body causes the flexible screen to unfold, and the fluid transfers from the first cavity to the second cavity. The increased volume of the second cavity supports the expanded area of ​​the flexible screen, ensuring sufficient support and improving the flatness of the flexible screen.

[0012] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0014] Figure 1 This is a schematic diagram of a flexible screen of an electronic device in a retracted state according to an embodiment of this application;

[0015] Figure 2 This is a schematic diagram of a flexible screen of an electronic device in an extended state according to an embodiment of this application;

[0016] Figure 3 This is a side view of the first body of an electronic device according to an embodiment of this application;

[0017] Figure 4 This is a top view (excluding the flexible screen) of an electronic device in a retracted state according to an embodiment of this application;

[0018] Figure 5 This is a top view (excluding the flexible screen) of an electronic device in an extended state according to an embodiment of this application;

[0019] Figure 6 This is a schematic diagram of a fluid cavity assembly of an electronic device in a contracted state according to an embodiment of this application;

[0020] Figure 7 This is a schematic diagram of a fluid cavity assembly of an electronic device in an deployed state according to an embodiment of this application.

[0021] Figure label:

[0022] 1. First main body; 11. First support member; 12. Storage groove; 13. Baffle; 131. Through hole; 2. Second main body; 21. Roller; 3. Flexible screen; 4. Fluid cavity assembly; 41. First cavity; 42. Second cavity; 43. Second support member; 44. Limiting part; 45. Slide groove; 5. Conduit. Detailed Implementation

[0023] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] The following is combined Figure 1 - Figure 5 This application describes an electronic device according to an embodiment of the present application.

[0028] like Figure 1 and Figure 2 As shown, according to some embodiments of this application, an electronic device is provided, the electronic device comprising:

[0029] The system comprises a first main body 1, a second main body 2, a flexible screen 3, and a fluid cavity assembly 4. The first main body 1 and the second main body 2 are movably connected. For example, the first main body 1 is provided with a sliding groove, and the second main body 2 slides relative to the first main body 1 along the sliding groove. The second main body 2 is provided with a scroll 21, which can be used to expand and retract the flexible screen 3.

[0030] See Figure 1 One side of the flexible screen 3 is connected to the first main body 1, and the other side of the flexible screen 3 goes around the scroll 21 and extends into the interior of the second main body 2. That is, the opposite sides of the flexible screen 3 are connected to the first main body 1 and the second main body 2 respectively. When the second main body 2 slides relative to the first main body 1, the flexible screen 3 can be pulled open along the sliding direction to expand the display area of ​​the flexible screen 3.

[0031] The fluid cavity assembly 4 includes a first cavity 41 and a second cavity 42 filled with fluid, and the first cavity 41 and the second cavity 42 are interconnected. As the second body 2 moves away from the first body 1, the second body 2 drives the flexible screen 3 to unfold, and the fluid is transferred from the first cavity 41 to the second cavity 42 so that the second cavity 42 supports the flexible screen 3.

[0032] Specifically, the first cavity 41 can be disposed in the first main body 1 or the second main body 2, while the second cavity 42 can be disposed between the first main body 1 and the second main body 2 and abut against the flexible screen 3. As the second main body 2 moves away from the first main body 1, the flexible screen 3 will be in the unfolding process. To effectively support the unfolded area of ​​the flexible screen 3, the first cavity 41 can be compressed by the movement of the second main body 2 away from the first main body 1. As the volume of the first cavity 41 decreases, the fluid will transfer from the first cavity 41 to the second cavity 42, meaning the volume of the second cavity 42 will increase. The increased volume of the second cavity 42 can then support the unfolded area of ​​the flexible screen 3.

[0033] In one embodiment, see Figure 1 and Figure 2The fluid cavity assembly 4 is connected to the second body 2, meaning that when the second body 2 slides relative to the first body 1, it causes the fluid cavity assembly 4 to move relative to the first body 1. The fluid cavity assembly 4 includes a first cavity 41 embedded in the first body 1 and a second cavity 42 located in the second body 2. The first cavity 41 and the second cavity 42 are interconnected. That is, when the volume of the first cavity 41 decreases, the fluid in the first cavity 41 flows to the second cavity 42, and when the volume of the second cavity 42 decreases, the fluid in the second cavity 42 flows to the first cavity 41, so as to ensure pressure balance in the first cavity 41 and the second cavity 42.

[0034] See Figure 1 When the flexible screen 3 is in a contracted state, the second main body 2 is close to the first main body 1, the first cavity 41 has a first volume, and the second cavity 42 has a second volume. At this time, the flexible screen 3 mainly relies on the first main body 1 for support, and the flexible screen 3 meets the user's viewing needs with a small area.

[0035] See Figure 2 When the flexible screen 3 is in an expanded state, the second main body 2 is away from the first main body 1. The first cavity 41 has a third volume, and the second cavity 42 has a fourth volume. Specifically, the second main body 2 slides away from the first main body 1 relative to the first main body 1. Since the first cavity 41 is embedded in the first main body 1, when the second main body 2 slides relative to the first main body 1, it will drive the fluid cavity assembly 4 away from the first main body 1, causing the volume of the first cavity 41 to decrease, that is, the third volume is smaller than the first volume.

[0036] When the second main body 2 slides away from the first main body 1, it drives the flexible screen 3 to expand via the scroll 21. As the second main body 2 and the first main body 1 move away, a gap is left below the expanded area of ​​the flexible screen 3. The second cavity 42 can fill this gap. Furthermore, since the first cavity 41 and the second cavity 42 are interconnected, the fluid in the first cavity 41 flows to the second cavity 42, resulting in a fourth volume larger than the second volume, allowing the second cavity 42 to fill the gap. As the scroll 21 rotates, it drives the flexible screen 3 to expand. The second cavity 42 can then support the expanded area of ​​the flexible screen 3 by filling this gap, ensuring sufficient support for the flexible screen 3 and improving its flatness.

[0037] In addition, when the first cavity 41 is embedded in the first body 1, it can be in a compressed state. When the second body 2 slides relative to the first body 1 and drives the fluid cavity assembly 4 away from the first body 1, the volume of the compressed first cavity 41 decreases. That is, the fluid in the first cavity 41 will flow to the second cavity 42, and then the second cavity 42 will support the extended area of ​​the flexible screen 3.

[0038] The electronic device provided in some embodiments of this application includes a first body 1, a second body 2, a flexible screen 3, and a fluid cavity assembly 4. The first body 1 and the second body 2 are movably connected. A scroll 21 is disposed inside the second body 2. One side of the flexible screen 3 is connected to the first body 1, and the other side of the flexible screen 3 bypasses the scroll 21 and extends into the interior of the second body 2. The fluid cavity assembly 4 includes a first cavity 41 and a second cavity 42 filled with fluid. The first cavity 41 and the second cavity 42 are interconnected. As the second body 2 moves away from the first body 1, the second body 2 causes the flexible screen 3 to unfold. After the first cavity 41 is compressed, the fluid in the first cavity 41 flows to the second cavity 42, causing the volume of the first cavity 41 to decrease and the volume of the second cavity 42 to increase. The second cavity 42 can then support the extended area of ​​the flexible screen 3, ensuring sufficient support for the flexible screen 3, improving the flatness of the flexible screen 3, ensuring that the extended area of ​​the flexible screen 3 does not sink under pressure or sliding conditions, and reducing the failure risk of the flexible screen 3.

[0039] Optionally, see Figure 1 and Figure 2 The second cavity 42 is a fluid bladder. When the flexible screen 3 is in the unfolded state, the second cavity 42 is attached to the inner side of the unfolded part of the flexible screen 3.

[0040] Specifically, as the second main body 2 moves away from the first main body 1, the second main body 2 will drive the flexible screen 3 to expand via the scroll 21. After the second main body 2 and the first main body 1 move away, a gap will be left below the expanded area of ​​the flexible screen 3. If the second cavity 42 is a fluid bladder, the easily deformable nature of the fluid bladder can be used to fill the gap, allowing the second cavity 42 to fit against the inner side of the unfolded portion of the flexible screen 3. The second cavity 42 provides sufficient support for the flexible screen 3, improving the flatness of the flexible screen 3.

[0041] Optionally, the first cavity 41 includes a cylinder and a piston, the piston being slidably connected to the cylinder, the cylinder being disposed on the second body 2, and the piston being connected to the first body 1;

[0042] During the movement of the first body 1 relative to the second body 2, the first body 1 drives the piston to slide relative to the cylinder, so that the fluid flows between the first cavity 41 and the second cavity 42.

[0043] Specifically, when the cylinder is disposed on the second body 2, the cylinder can be a rigid cylinder and has an opening away from the first body 1. The piston can be connected to the first body 1 and inserted into the cylinder through the opening. Fluid is disposed in the cylinder, and the cylinder is in communication with the second cavity 42.

[0044] During the movement of the first main body 1 relative to the second main body 2, for example when the first main body 1 and the second main body 2 move away from each other, the second main body 2 will drive the flexible screen 3 to expand through the roller 21. The piston can extend into the cylinder and compress the fluid in the cylinder, so that the fluid in the cylinder will flow to the second cavity 42. The second cavity 42 can support the expanded area of ​​the flexible screen 3 while increasing in volume.

[0045] When the first body 1 and the second body 2 approach each other, the second body 2 will drive the flexible screen 3 to contract through the roller 21. The piston can gradually disengage from the cylinder and release the space in the cylinder. At this time, the approach of the first body 1 and the second body 2 will also compress the second cavity 42, so that the fluid in the second cavity 42 flows to the cylinder, in order to prepare for the second cavity 42 to provide support for the expansion area of ​​the flexible screen 3 for the next time.

[0046] Optionally, the first cavity 41 and the second cavity 42 are connected by a conduit 5, which is disposed on the piston.

[0047] Specifically, in order to ensure the smooth flow of fluid between the first cavity 41 and the second cavity 42 while maintaining their independence, a conduit 5 can be provided between the first cavity 41 and the second cavity 42. When the piston is inserted into the cylinder, a closed space for containing fluid is formed within the cylinder. When the conduit 5 is placed on the piston, it ensures the smooth communication between the first cavity 41 and the second cavity 42 while maintaining the cylinder's sealing.

[0048] Optionally, see Figure 1 and Figure 2 The first cavity 41 is a fluid bag, and the first main body 1 is provided with a first support member 11, and the first support member 11 is provided with a storage groove 12 with an opening facing the second main body 2.

[0049] The second main body 2 is provided with a second support member 43, which is retractable and nested in the storage groove 12. The second support member 43 has a hollow structure, and the first cavity 41 is embedded in the hollow structure.

[0050] As the second body 2 moves away from the first body 1, the second support 43 compresses the space of the first cavity 41 located in the receiving groove 12, so that the fluid is transferred from the first cavity 41 to the second cavity 42.

[0051] Specifically, the first main body 1 may have a cavity, and the first support member 11 is fixed in the cavity and used to directly support the flexible screen 3. In order to facilitate the first cavity 41 being embedded in the first main body 1, a receiving groove 12 with an opening facing the second main body 2 can be provided in the first support member 11. When the flexible screen 3 is in a contracted state, the first support member 11 can support the fixed part of the flexible screen 3; when the flexible screen 3 is in an expanded state, the first support member 11 can support the fixed part of the flexible screen 3, and the second cavity 42 can support the expanded part of the flexible screen 3. The first cavity 41 is still a fluid bladder stored in the receiving groove 12, and the fluid in the first cavity 41 will flow to the second cavity 42 to ensure that the second cavity 42 supports the expanded area of ​​the flexible screen 3.

[0052] When the first cavity 41 is embedded within the hollow structure of the second support member 43, the second support member 43 is retractable and nested within the receiving groove 12. This means that the first cavity 41 is simultaneously embedded in the hollow structure and stored within the receiving groove 12. The receiving groove 12 confines the first cavity 41 within the space of the hollow structure, similar to a bellows pull-out structure. The receiving groove 12 is analogous to a bellows, and the hollow structure of the second support member 43 is analogous to a pull rod structure. As the second main body 2 moves away from the first main body 1, the second main body 2 pulls the second support member 43 away from the first main body 1, allowing the second support member 43 to compress the space of the first cavity 41 within the receiving groove 12. This transfers the fluid from the first cavity 41 to the second cavity 42, and the increased volume of the second cavity 42 provides support for the extended area of ​​the flexible screen 3.

[0053] Optionally, see Figure 1 and Figure 2 The second cavity 42 is disposed between the second support member 43 and the flexible screen 3.

[0054] Specifically, as the second main body 2 moves away from the first main body 1, that is, as the second main body 2 slides away from the first main body 1, the second main body 2 will drive the second support member 43 to move away from the first main body 1, that is, the second support member 43 will gradually extend out of the receiving groove 12. As the second support member 43 gradually extends out of the receiving groove 12, the space left for the first cavity 41 in the second support member 43 will gradually decrease, that is, the second support member 43 will compress the first cavity 41, thereby causing the fluid in the first cavity 41 to flow to the second cavity 42. Since the second cavity 42 is located between the second support member 43 and the flexible screen 3, as the volume of the second cavity 42 increases, it can extend along the space between the second support member 43 and the flexible screen 3, so that the second cavity 42 can effectively support the extended area of ​​the flexible screen 3.

[0055] Optionally, see Figure 3 The opening of the storage slot 12 has a baffle 13, which is used to block the first cavity 41 within the first support member 11.

[0056] Specifically, when the second support member 43 gradually extends out of the storage groove 12 and compresses the first cavity 41, in order to prevent the second support member 43 from pulling the first cavity 41 out of the storage groove 12 together, a baffle 13 can be formed at the opening of the storage groove 12. The baffle 13 can always block the first cavity 41 within the storage groove 12 of the first support member 11, ensuring the effective compression of the first cavity 41.

[0057] Optionally, see Figure 1 and Figure 2 A limiting part 44 is provided on the side of the second support member 43 near the flexible screen 3, and the limiting part 44 stops the second cavity 42 on the side near the second main body 2.

[0058] Specifically, when the flexible screen 3 switches from an expanded state to a contracted state, the second main body 2 slides towards the first main body 1 relative to the first main body 1. The second main body 2 then drives the flexible screen 3 to roll up and contract via the roller 21. At this time, the space left for the first cavity 41 increases, while the space left for the second cavity 42 decreases. Since the first cavity 41 and the second cavity 42 are interconnected, the fluid in the second cavity 42 will flow to the first cavity 41, and then the flexible screen 3 can return to its contracted state. The limiting part 44 can apply a squeezing action to the second cavity 42 when the second main body 2 approaches the first main body 1, thereby increasing the driving force for the fluid in the second cavity 42 to flow to the first cavity 41, ensuring that the fluid in the second cavity 42 will flow back to the first cavity 41 in a timely manner.

[0059] In one embodiment, the limiting part 44 may be disposed at one end of the second support member 43 near the second main body 2, so as to leave more accommodating space for the second cavity 42 and improve the comprehensiveness of the second cavity 42 in supporting the extended area of ​​the flexible screen 3.

[0060] Optionally, the total volume of the first cavity 41 and the second cavity 42 is constant.

[0061] Specifically, when the flexible screen 3 switches from a contracted state to an expanded state, the accommodating space of the first cavity 41 decreases, while the accommodating space of the second cavity 42 increases. That is, the volume of the first cavity 41 decreases, and since the first cavity 41 and the second cavity 42 are interconnected, the fluid in the first cavity 41 will flow to the second cavity 42, causing the volume of the second cavity 42 to increase.

[0062] When the flexible screen 3 switches from the expanded state to the contracted state, the accommodating space of the second cavity 42 decreases, while the accommodating space of the first cavity 41 increases. That is, the volume of the second cavity 42 decreases. Since the first cavity 41 and the second cavity 42 are interconnected, the fluid in the second cavity 42 will flow to the first cavity 41, causing the volume of the first cavity 41 to increase.

[0063] When the total volume of the first cavity 41 and the second cavity 42 remains constant, that is, whether the fluid in the first cavity 41 flows to the second cavity 42 or the fluid in the second cavity 42 flows to the first cavity 41, the total volume of the first cavity 41 and the second cavity 42 remains unchanged. This allows the pressure in the first cavity 41 and the second cavity 42 to remain constant. This constant pressure can be used to select a suitable supporting pressure for the flexible screen 3 to ensure that the second cavity 42 provides stable support for the extended area of ​​the flexible screen 3, preventing the extended area of ​​the flexible screen 3 from sinking or bulging, and ensuring the flatness of the flexible screen 3.

[0064] Optionally, the first cavity 41 and the second cavity 42 are filled with gas or liquid to form an air bladder, a liquid bladder, or a gas-liquid bladder.

[0065] Specifically, both the first cavity 41 and the second cavity 42 can be air bladders, meaning that both the first cavity 41 and the second cavity 42 are filled with gas. When the volume of the first cavity 41 and the second cavity 42 changes, the gas in the first cavity 41 and the second cavity 42 flows to each other. Alternatively, both the first cavity 41 and the second cavity 42 can be liquid bladders, meaning that both the first cavity 41 and the second cavity 42 are filled with liquid. Or, both the first cavity 41 and the second cavity 42 can be gas-liquid bladders, meaning that both the first cavity 41 and the second cavity 42 are filled with a mixture of gas and liquid. Both methods can achieve flexible flow of fluid in the first cavity 41 and the second cavity 42.

[0066] Optionally, see Figure 6 and Figure 7 The first cavity 41 and the second cavity 42 have a wrapping layer, which is arranged in a folded shape.

[0067] Specifically, the first cavity 41 and the second cavity 42 may include a wrapping layer and fluid filling the wrapping layer. When the wrapping layer is folded, for example, the extension direction of the fold on the wrapping layer is consistent with the compression direction of the wrapping layer, it can facilitate the compression deformation of the first cavity 41 and the second cavity 42 and ensure the consistency of the deformation direction of the first cavity 41 and the second cavity 42.

[0068] Optionally, see Figure 4 and Figure 5 The first cavity 41 and the second cavity 42 are connected by a conduit 5;

[0069] The baffle 13 is provided with a through hole 131 through which the conduit 5 passes.

[0070] Specifically, to ensure the smooth flow of fluid between the first cavity 41 and the second cavity 42 while maintaining their independence, a conduit 5 can be provided between the first cavity 41 and the second cavity 42. When the baffle 13 blocks the first cavity 41 within the first support member 11, it forms a closed space within the first support member 11 to accommodate the first cavity 41. The through hole 131 facilitates the passage of the conduit 5 to connect the first cavity 41 and the second cavity 42.

[0071] Optionally, see Figure 4 and Figure 5 The second support member 43 is provided with a groove 45 on the side near the flexible screen 3, and the guide tube 5 is movably disposed in the groove 45.

[0072] Specifically, when the second body 2 slides away from the first body 1, the extension direction of the groove 45 can be consistent with the sliding direction of the second body 2, so that when the second body 2 moves the second support member 43, it leaves space for the conduit 5 to avoid the second support member 43 from squeezing or damaging the conduit 5.

[0073] Optionally, the electronic device includes, but is not limited to, one of the following: smartwatch, mobile phone, tablet computer, e-book reader, MP3 player, MP4 player, computer, set-top box, smart TV, and wearable device.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that: include: a first body and a second body, wherein the first body and the second body are movably connected, and a reel is disposed in the second body; A flexible screen, one side of which is connected to the first body, and the other side of which goes around the scroll and extends into the second body; A fluid cavity assembly, the fluid cavity assembly comprising a first cavity filled with fluid and a second cavity, the first cavity and the second cavity being connected to each other; When the second body moves away from the first body, the second body drives the flexible screen to unfold, and the fluid is transferred from the first cavity to the second cavity, so that the second cavity supports the flexible screen; The first cavity is a fluid capsule, a first support member is disposed in the first body, and a receiving groove is disposed in the first support member; A second support member is disposed in the second main body, and the second support member can be telescopically nested in the storage slot; The second support member has a hollow structure, and the first cavity is embedded in the hollow structure; When the second body moves away from the first body, the second supporting member compresses the space of the first cavity in the receiving groove, so that the fluid is transferred from the first cavity to the second cavity.

2. The electronic device according to claim 1, characterized in that: The second cavity is a fluid bag. When the flexible screen is in an unfolded state, the second cavity is attached to the inner side of the unfolded part of the flexible screen.

3. The electronic device according to claim 1, characterized in that: The first cavity comprises a cylinder and a piston, the piston is slidably connected to the cylinder, the cylinder is arranged on the second body, and the piston is connected to the first body; During the movement of the first body relative to the second body, the first body drives the piston to slide relative to the cylinder, so that the fluid flows between the first cavity and the second cavity.

4. The electronic device according to claim 3, characterized in that: The first cavity and the second cavity are connected through a conduit, and the conduit is arranged on the piston.

5. The electronic device according to claim 1, characterized in that: The second cavity is arranged between the second support member and the flexible screen.

6. The electronic device according to claim 5, characterized in that: A limiting portion is provided on a side of the second support member close to the flexible screen, and the limiting portion stops at a side of the second cavity close to the second body.

7. The electronic device according to claim 1, characterized in that: The storage groove is provided with a through hole for passing a conduit; A slide groove is provided on a side of the second support member close to the flexible screen, and the catheter is movably arranged in the slide groove.

8. The electronic device according to claim 1, characterized in that: The total volume of the first cavity and the second cavity is constant.

9. The electronic device according to claim 1, characterized in that: The first cavity and the second cavity are filled with gas or liquid.

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