Flexible screen supporting structure and flexible display device

Abstract

The application provides a flexible screen supporting structure and a flexible display device. The flexible screen supporting structure is used for supporting a flexible display screen. The flexible screen supporting structure comprises a fixing assembly, a sliding assembly, a reel assembly and a supporting layer. The sliding assembly is slidably connected with the fixing assembly along a first direction. The sliding assembly comprises a first wall in a second direction and a first limiting groove formed by the inward recess of the first wall. The first direction intersects the second direction. The reel assembly is arranged on the sliding assembly. The axis direction of the reel assembly is parallel to the second direction. The supporting layer comprises a first supporting part. During the conversion of the flexible screen supporting structure between an unfolded state and a folded state, the first supporting part is deformed by sliding around the reel assembly. The first supporting part comprises a plurality of supporting subparts arranged at intervals. At least part of the supporting subparts is located in the first limiting groove in the unfolded state of the flexible screen supporting structure.

Description

Technical Field

[0001] This application relates to the field of packaging technology, and in particular to a flexible screen support structure and a flexible display device. Background Technology

[0002] With the development of display technology, display devices have evolved into a wide variety of application forms. Among them, flexible rollable display devices and flexible sliding stretchable display devices, as emerging display products, represent a future development trend. Rolling requires high standards for flexible screens and terminal structures, and mass production is still somewhat difficult at this stage. However, sliding stretchable display devices meet the current development needs of mobile terminals, as they can achieve screen unfolding and retraction. Summary of the Invention

[0003] This application provides a flexible screen support structure and a flexible display device, which can improve the bulging problem.

[0004] In a first aspect, embodiments of this application provide a flexible screen support structure for supporting a flexible display screen. The flexible screen support structure includes:

[0005] Fixed components;

[0006] A sliding component is slidably connected to a fixed component along a first direction. The sliding component includes a first wall and a first limiting groove formed by the inward recess of the first wall in a second direction. The first direction intersects with the second direction.

[0007] A scroll assembly is disposed on the sliding assembly, and the axial direction of the scroll assembly is parallel to the second direction;

[0008] The support layer includes a first support part. During the transition between the unfolded and retracted states of the flexible screen support structure, the first support part slides and deforms around the scroll assembly.

[0009] The first support portion includes multiple support subdivisions spaced apart. In the unfolded state of the flexible screen support structure, at least some of the support subdivisions are located within the first limiting groove.

[0010] In some embodiments, the support layer further includes a second support portion, which is spaced apart from the first support portion in the extending direction of the support layer, and the second support portion is located on one side of the roll assembly along a third direction, wherein the first direction, the second direction, and the third direction intersect each other.

[0011] In the third direction, at least a portion of the first limiting groove is located on the side of the reel assembly facing the second support portion;

[0012] In some embodiments, the second support portion is straight and extends along the first direction;

[0013] In some embodiments, the size of a single support portion is smaller than the size of the second support portion in the extending direction of the support layer;

[0014] In some embodiments, the sliding component further includes a second wall disposed opposite to the first wall in a second direction, and a second limiting groove formed by the inward recess of the second wall, wherein at least a portion of the support portion is located within the second limiting groove in the unfolded state of the flexible screen support structure.

[0015] In some embodiments, the first limiting groove includes a first groove portion, which is located on the side of the reel assembly facing the second support portion in the third direction;

[0016] In the unfolded state, the support portion adjacent to the second support portion is located within the first groove portion;

[0017] In some embodiments, in the unfolded state, multiple support portions are located within the first groove;

[0018] In some embodiments, the dimension of the first groove in the third direction is h1, and the thickness of the support portion is h2, wherein h1 and h2 satisfy: h2≤h1≤1.2h2;

[0019] In some embodiments, the dimension of the first groove in the third direction is equal to the thickness of the support portion.

[0020] In some embodiments, the first limiting groove further includes a second groove portion disposed on the periphery of the reel assembly, wherein the first groove portion and the second groove portion are connected.

[0021] In the contracted state, part of the support portion is located within the second groove.

[0022] In some embodiments, one end of the second groove is connected to the first groove, and the other end is cut off.

[0023] In some embodiments, the plurality of support portions include a plurality of first portions and a plurality of second portions, wherein, in the extension direction of the support layer, the second portions are located on the side of the first portions away from the second support portions;

[0024] In the unfolded state, multiple first parts are disposed in the first groove and the second groove, and the second parts are located outside the first limiting groove;

[0025] In some embodiments, at least a portion of the first portion has a larger dimension in the second direction than the second portion has in the second direction.

[0026] In some embodiments, the first limiting groove further includes a third groove portion, which is disposed on both sides of the roll assembly in a third direction and is respectively connected to both ends of the second groove portion.

[0027] In the contracted state, part of the support portion is located within the third groove.

[0028] In some embodiments, in the contracted state, all support portions are located within the first limiting groove;

[0029] In some embodiments, the dimension of the first groove in the first direction is not less than the dimension of the third groove in the first direction;

[0030] In some embodiments, the dimensions of the first groove in the third direction are the same as the dimensions of the third groove in the third direction.

[0031] In some embodiments, the first groove is provided through one end in the first direction, and in the contracted state, the second support is located inside the first groove;

[0032] In some embodiments, in the unfolded state, the second support portion and at least a portion of the support portion are located within the first groove.

[0033] In some embodiments, the dimension of the second support portion in the second direction is equal to the dimension of the support portion in the second direction;

[0034] In some embodiments, the first support portion and the second support portion comprise the same material.

[0035] Secondly, embodiments of this application provide a flexible screen support structure for supporting a flexible display screen. The flexible screen support structure includes:

[0036] Fixed components;

[0037] A sliding component is slidably connected to a fixed component along a first direction. The sliding component includes a first wall in a second direction. The first wall includes a wall body and a first protrusion protruding from the inner surface of the wall body.

[0038] A scroll assembly is disposed on the sliding assembly, and the axial direction of the scroll assembly is parallel to the second direction;

[0039] The support layer includes a first support part, which includes a support surface that supports the flexible display screen. During the transition between the unfolded and retracted states of the flexible screen support structure, the first support part slides and deforms around the roll assembly.

[0040] The first support part includes multiple support sub-parts spaced apart. In the unfolded state of the flexible screen support structure, the first protrusion is disposed on one side of the support surface, and the projection of the first protrusion in the third direction overlaps with the projection of the support sub-parts in the third direction. The first direction, the second direction, and the third direction intersect each other.

[0041] In some embodiments, the first wall includes a second protrusion protruding from the inner surface of the wall body. The first protrusion and the second protrusion are spaced apart in a third direction, and the wall body, the first protrusion, and the second protrusion together enclose a limiting space.

[0042] In the unfolded state of the flexible screen support structure, at least a portion of the support portion is located within the confined space;

[0043] In some embodiments, the dimension of the limiting space in the third direction is equal to the thickness of the supporting portion;

[0044] In some embodiments, the support layer further includes a second support portion, which is spaced apart from the first support portion in the extending direction of the support layer, and the second support portion is located on one side of the roll assembly in a third direction.

[0045] In the contracted state, the second support is located within the limiting space.

[0046] Thirdly, embodiments of this application provide a flexible display device, including a flexible display screen and the flexible screen support structure in any of the foregoing embodiments.

[0047] In some embodiments, at least one end of the support portion extends beyond the flexible display screen in the second direction;

[0048] In some embodiments, the support portion extends beyond the flexible display screen at both ends in the second direction;

[0049] In some embodiments, the support portion extends beyond the flexible display screen by a dimension L in the second direction, where L satisfies 2mm ≤ L ≤ 5mm.

[0050] This application provides a flexible screen support structure and a flexible display device. By providing a first limiting groove on the first wall of the sliding component, and setting the support portion to be able to extend into the first limiting groove and be restricted by the first limiting groove in the unfolded state, the movement of the support portion and the flexible display screen in the extension direction perpendicular to the support layer is reduced, the bulging degree of the flexible display device in the unfolded state is reduced, the appearance flatness of the flexible display device in the unfolded state is improved, and the user's viewing experience is improved. Attached Figure Description

[0051] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1This is a cross-sectional structural diagram of a flexible screen support structure in a contracted state, provided in an embodiment of this application.

[0053] Figure 2 This is a cross-sectional structural diagram of a flexible screen support structure provided in this application embodiment in its unfolded state;

[0054] Figure 3 This is a cross-sectional structural diagram of a flexible display device in its unfolded state, as provided in an embodiment of this application.

[0055] Figure 4 This is a schematic diagram of the structure of a flexible display device in its unfolded state, as provided in an embodiment of this application.

[0056] Figure 5 This is a cross-sectional structural diagram of a sliding component in a flexible screen support structure provided in an embodiment of this application;

[0057] Figure 6 This is a cross-sectional structural diagram of the sliding component in another flexible screen support structure provided in this application embodiment;

[0058] Figure 7 This is a schematic diagram of another flexible screen support structure provided in the embodiments of this application in a contracted state;

[0059] Figure 8 This is a schematic diagram of another flexible screen support structure provided in the embodiments of this application in its unfolded state;

[0060] Figure 9 This is a cross-sectional structural diagram of a sliding component in a flexible screen support structure provided in an embodiment of this application;

[0061] Figure 10 This is a schematic diagram of another flexible screen support structure provided in the embodiments of this application in a contracted state;

[0062] Figure 11 This is a cross-sectional structural diagram of a sliding component in a flexible screen support structure provided in an embodiment of this application;

[0063] Figure 12 This is a schematic diagram of another flexible screen support structure provided in the embodiments of this application in a contracted state;

[0064] Figure 13 This is a schematic diagram of another flexible screen support structure provided in the embodiments of this application in a contracted state;

[0065] Figure 14 This is a schematic diagram of another flexible screen support structure provided in the embodiment of this application in the contracted state.

[0066] Marker explanation:

[0067] 10. Fixing components;

[0068] 20. Sliding component; 21. First wall; 22. First limiting groove; 221. First groove portion; 222. Second groove portion; 223. Third groove portion; 23. Second wall; 24. Second limiting groove; 25. Wall body; 26. First protrusion; 27. Second protrusion; 28. Limiting space;

[0069] 30. Flexible display screen;

[0070] 40. Reel assembly;

[0071] 50. Support layer; 51. First support section; 511. Support subsection; 511a. First subsection; 511b. Second subsection; 52. Second support section;

[0072] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0073] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0074] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0075] With the development of flexible display devices, various forms of foldable screens have emerged, one of which is the sliding display product. One of the problems currently faced by this type of product is the poor flatness of the screen body in the sliding part, which leads to a poor user experience and affects the display appearance.

[0076] To address the aforementioned issues, in a first aspect, embodiments of this application provide a flexible screen support structure for supporting a flexible display screen 30. The flexible screen support structure includes a fixing component 10, a sliding component 20, a roll-up component 40, and a support layer 50. The sliding component 20 is slidably connected to the fixing component 10 along a first direction X. The sliding component 20 includes a first wall 21 in a second direction Y, and a first limiting groove 22 formed by the inward recess of the first wall 21. The first direction X intersects with the second direction Y.

[0077] A scroll assembly 40 is disposed on the sliding assembly 20, and the axial direction of the scroll assembly 40 is parallel to the second direction Y. A support layer 50 includes a first support portion 51. During the transition between the unfolded and retracted states of the flexible screen support structure, the first support portion 51 slides and deforms around the scroll assembly 40. The first support portion 51 includes a plurality of spaced-apart support sections 511. In the unfolded state of the flexible screen support structure, at least some of the support sections 511 are located within the first limiting groove 22.

[0078] The flexible screen support structure provided in this application embodiment is used to form a flexible display device together with the flexible screen. The flexible display screen 30 is the main component in the flexible display device that realizes the display function. When the flexible display device is in use, the corresponding image information needs to be transmitted to the flexible display screen 30 and displayed through the flexible display screen 30. The flexible screen support structure is a mechanical component in the flexible display device that realizes the sliding and deformation function. The flexible display screen 30 is disposed on the flexible screen support structure and the two move synchronously to realize the switching of the flexible display device in different forms.

[0079] The flexible screen support structure has at least two states: an unfolded state and a retracted state. Compared to the retracted state, the unfolded flexible screen support structure has a larger dimension in the first direction X, allowing the flexible display device to display a larger image and thus improving the user experience. In the retracted state, the flexible screen support structure has a smaller dimension in the first direction X, allowing the flexible display device to be held with one hand and improving its portability.

[0080] Next, please refer to Figures 1 to 4This application embodiment will introduce the specific structural composition of the flexible screen support structure. The fixed component 10 and the sliding component 20 are the core components of the flexible screen support structure. The two can cooperate with each other to form the overall outer frame of the flexible screen support structure. The sliding component 20 is slidably connected to the fixed component 10 along the first direction X. During the switching between the unfolded state and the retracted state, the sliding component 20 and the fixed component 10 slide relative to each other in the first direction X to change the overall size of the flexible screen support structure in the first direction X. At the same time, the flexible display screen 30 will deform together with the flexible screen support structure, thereby increasing or decreasing the maximum displayable screen of the flexible display device.

[0081] The roller assembly 40 is a key component in the flexible screen support structure that enables the flexible display screen 30 to bend and retract. The roller assembly 40 is disposed on the sliding assembly 20 and can rotate relative to the sliding assembly 20 along the second direction Y. The support layer 50 is a support component in the flexible screen support structure used to support the flexible display screen 30. The support layer 50 includes a first support portion 51, which can be bent and deformed together with the flexible display screen 30. Optionally, the first direction X and the second direction Y are perpendicular to each other.

[0082] In the retracted state, a portion of the flexible display screen 30 and the first support portion 51 bend around the scroll assembly 40, allowing at least a portion of the flexible display screen 30 to be hidden inside the flexible display device. During the transition from the retracted to the unfolded state, the bent portion of the flexible display screen 30 and the first support portion 51 move relative to the scroll assembly 40, and the scroll assembly 40 rotates relative to the sliding assembly 20. This causes a portion of the flexible display screen 30 to protrude from inside the flexible display device, thereby increasing the size of the displayable image.

[0083] Typically, to meet support requirements, the first support portion 51 is made of a material with high strength, such as steel. Furthermore, to accommodate the bending requirements of the first support portion 51, this embodiment includes multiple support sections 511, which are spaced apart and arranged side-by-side along the extension direction of the support layer 50. Here, the "extension direction of the support layer 50" refers to the direction in which the support layer 50 extends in a specific area. Further, the extension direction of the support layer 50 is not a single straight line. For example, in the contracted state, some structures of the support layer 50 are located on both sides of the roll assembly 40 along the third direction Z, while other structures are located on one side of the roll assembly 40 along the first direction X. Based on this, the partial structures in the support layer 50 located on both sides of the roll assembly 40 along the third direction Z all extend along the first direction X, while the partial structures in the support layer 50 located on one side of the roll assembly 40 along the first direction X extend along other directions that intersect with the first direction X. Furthermore, the extension directions of the partial structures in the support layer 50 located on one side of the roll assembly 40 along the first direction X are not the same in different regions.

[0084] It should be noted that, in order to meet the requirement of synchronous movement of multiple support portions 511, the support layer 50 may also include a substrate (not shown in the figure), and the multiple support portions 511 are disposed on the substrate and achieve synchronous movement through the substrate. The substrate typically has a small thickness or low structural strength, so that the substrate can undergo bending deformation during movement, meeting the requirements for use in flexible display devices.

[0085] In related technologies, during the process of changing from a contracted state to an unfolded state, the support portion 511 moves together with the flexible display screen 30 relative to the roll assembly 40. During the movement, the support portion 511 may cause the flexible display screen 30 to move together in the extension direction perpendicular to the support layer 50, thereby causing the flexible display screen 30 to bulge locally, affecting the appearance flatness of the flexible display device.

[0086] Therefore, the morphology of the first wall 21 and the dimensions of the support portion 511 in the sliding component 20 have been adjusted in this embodiment. Specifically, the first wall 21 is the side wall of the sliding component 20 in the second direction Y. Taking the flexible display device as an example where it can be stretched and deformed left and right, the first wall 21 can be the upper side wall or the lower side wall of the sliding component 20. Optionally, the scroll assembly 40 can be rotatably connected to the first wall 21.

[0087] A first limiting groove 22 is provided on the first wall 21. The first limiting groove 22 is formed by an inward indentation from the side of the first wall 21 facing the support layer 50. Based on this, the embodiment of this application further increases the size of at least a portion of the support portion 511, so that in the unfolded state, at least a portion of the support portion 511 is located within the first limiting groove 22. The phrase "the support portion 511 is located within the first limiting groove 22" means that a portion of the structure in the support portion 511 can extend into the first limiting groove 22. Under this design, at least a portion of the support portion 511 in the unfolded state is restricted by the first limiting groove 22, thereby reducing the movement of the support portion 511 and the flexible display screen 30 in the extension direction perpendicular to the support layer 50, thus reducing the degree of bulging and improving the flatness of the flexible display device in the unfolded state.

[0088] It should be noted that the specific size and shape of the first limiting groove 22 are not limited in this embodiment, as long as at least a portion of the support portion 511 can be located within the first limiting groove 22 in the unfolded state. Further, in the unfolded state, all support portions 511 can be located within the first limiting groove 22, meaning all support portions 511 extend into the first limiting groove 22, or only a portion of the support portions 511 can be located within the first limiting groove 22, meaning only a portion of the support portions 511 extend into the first limiting groove 22, while the remaining portion does not extend into the first limiting groove 22. In the retracted state, at least a portion of the support portions 511 can be located within the first limiting groove 22, or all support portions 511 can be located outside the first limiting groove 22; this embodiment does not impose any restrictions on this.

[0089] Furthermore, the relationship between the first limiting groove 22 and the flexible display screen 30 is not limited in this embodiment. The flexible display screen 30 may extend into the first limiting groove 22, or it may be completely outside the first limiting groove 22. For ease of understanding, this embodiment uses the example of the flexible display screen 30 being completely outside the first limiting groove 22, and this will not be elaborated further in this application. Further, to meet the cooperation requirements between the first limiting groove 22 and the support portion 511, at least a portion of the support portion 511 needs to extend beyond the flexible display screen 30 in the second direction Y.

[0090] In summary, in this embodiment of the application, by providing a first limiting groove 22 on the first wall 21 of the sliding component 20, and by configuring the support portion 511 so that at least a portion of the support portion 511 can be inserted into the first limiting groove 22 and restricted by the first limiting groove 22 in the unfolded state, the movement of the support portion 511 and the flexible display screen 30 in the extension direction perpendicular to the support layer 50 is reduced, the bulging degree of the flexible display device in the unfolded state is reduced, the appearance flatness of the flexible display device in the unfolded state is improved, and the user's viewing experience is enhanced.

[0091] In some embodiments, such as Figures 1 to 4 As shown, the support layer 50 includes a second support portion 52, which is spaced apart from the first support portion 51 in the extending direction of the support layer 50. The second support portion 52 is located on one side of the reel assembly 40 along the third direction Z, where the first direction X, the second direction Y, and the third direction Z intersect each other. At least a portion of the first limiting groove 22 is located on the side of the reel assembly 40 facing the second support portion 52 in the third direction Z.

[0092] In addition to the first support portion 51, which can be bent and deformed relatively, the support layer 50 also includes a second support portion 52. Both the first support portion 51 and the second support portion 52 are used to support the flexible display screen 30. Unlike the first support portion 51, the second support portion 52 and the part of the flexible display screen 30 corresponding to the second support portion 52 will not deform during the transition between the contracted state and the unfolded state. Furthermore, the part of the flexible display screen 30 corresponding to the second support portion 52 is always exposed relative to the flexible display device in both the contracted and unfolded states to achieve the display function.

[0093] Furthermore, in this embodiment, at least a portion of the first limiting groove 22 is located on the side of the roll assembly 40 facing the second support portion 52, that is, at least a portion of the first limiting groove 22 is located on the side of the roll assembly 40 facing the display surface of the flexible display device. Thus, in the unfolded state, at least a portion of the support portion 511, arranged side-by-side with the second support portion 52 in the first direction X, can extend into the first limiting groove 22. The portion of the flexible display screen 30 corresponding to this support portion 511 is used to realize the display function. This design helps reduce the risk of bulging in the portion of the flexible display screen 30 used to realize the display function, thereby improving the flatness of the flexible display device's appearance and the user's viewing experience.

[0094] In some embodiments, the second support portion 52 is flat and extends along the first direction X.

[0095] In this embodiment, by setting the second support portion 52 to a flat state, the structure of the second support portion 52 is made relatively flat, thereby improving the flatness of the part of the flexible display screen 30 corresponding to the second support portion 52. Furthermore, in this embodiment, the second support portion 52 is also set to extend along the first direction X, such that the extension direction of the second support portion 52 is the same as the sliding direction of the flexible display device, thereby helping to improve the smoothness of the sliding of the flexible display device.

[0096] In some embodiments, in the extending direction of the support layer 50, the size of a single support portion 511 is smaller than the size of the second support portion 52.

[0097] Since the extension direction of the support layer 50 is not the same at different positions of the first support portion 51, the extension direction of the support layer 50 corresponding to the areas where different support portions 511 are located may be the same or different. For ease of understanding, this embodiment of the application takes the portion of the support portion 511 located on the side of the roll assembly 40 facing the second support portion 52 in the unfolded state as an example. For this portion of the support portion 511, the extension direction of the support layer 50 corresponding to its area is the first direction X, and the extension direction of the support layer 50 corresponding to the area where the second support portion 52 is located is also the first direction X. Thus, for the portion of the support portion 511 and the second support portion 52, the dimensions of the support layer 50 in the extension direction are the dimensions of the two in the first direction X, respectively.

[0098] In this embodiment, by reducing the dimension of a single support portion 511 in the extension direction of the support layer 50 and spacing multiple support portions 511 apart from each other, the support requirements for a portion of the flexible display screen 30 can be met, while also allowing the portion of the flexible display screen 30 to bend and deform relative to the roll assembly 40. Furthermore, this embodiment also increases the dimension of the second support portion 52 in the extension direction of the support layer 50, thereby improving the support strength of the second support portion 52 for the portion of the flexible display screen 30 and enhancing its compressive and deformation resistance.

[0099] In some embodiments, the sliding component 20 further includes a second wall 23 disposed opposite to the first wall 21 in the second direction Y, and a second limiting groove 24 formed by the inward recess of the second wall 23. In the unfolded state of the flexible screen support structure, at least a portion of the support portion 511 is located in the second limiting groove 24.

[0100] The second wall 23 is a wall structure in the sliding assembly 20 that is opposite to the first wall 21. The second wall 23 is provided with a second limiting groove 24. The two ends of the support portion 511 in the second direction Y can respectively penetrate into the first limiting groove 22 and the second limiting groove 24. The first limiting groove 22 and the second limiting groove 24 can cooperate with each other to improve the limiting effect on the support portion 511, thereby further reducing the bulging degree of the flexible display device and improving the appearance flatness of the flexible display device.

[0101] It should be noted that, in order to meet the requirement that the support portion 511 can simultaneously extend into the first limiting groove 22 and the second limiting groove 24, both ends of the support portion 511 in the second direction Y need to extend beyond the flexible display screen 30. The first limiting groove 22 and the second limiting groove 24 can have the same size and shape, or they can have different sizes and shapes, as long as at least part of the support portion 511 can simultaneously extend into the first limiting groove 22 and the second limiting groove 24 in the unfolded state.

[0102] In some embodiments, please refer to Figures 1 to 5 The first limiting groove 22 includes a first groove portion 221, which is located on the side of the reel assembly 40 facing the second support portion 52 in the third direction Z. In the unfolded state, the support portion 511 adjacent to the second support portion 52 is located within the first groove portion 221.

[0103] The first groove 221 is located on the side of the roll assembly 40 facing the second support portion 52. The first groove 221 can extend along the first direction X, penetrating into a portion of the flexible display screen 30 corresponding to the support portion 511 within the first groove 221 to realize the display function. Depending on the actual needs, the first limiting groove 22 may only include the first groove 221, or the first limiting groove 22 may also include other structures; this embodiment does not limit this.

[0104] Considering that the flexible display screen 30 is more prone to bulging at the boundary between the first support portion 51 and the second support portion 52, this embodiment adds a first groove portion 221 and adjusts the size and shape of the first groove portion 221 so that the support portion 511 adjacent to the second support portion 52 is located inside the first groove portion 221 in the unfolded state. This helps to reduce the degree of bulging of the flexible display screen 30 at the boundary between the first support portion 51 and the second support portion 52 and improve the flatness of the appearance of the flexible display device.

[0105] In some embodiments, please refer to Figure 2 and Figure 5 In the unfolded state, multiple support sections 511 are located within the first groove 221.

[0106] In this embodiment, the extension dimension of the first groove 221 is increased, so that the multiple support portions 511 in the unfolded state are all inserted into the first groove 221 and are limited, thereby helping to reduce the bulging problem of the flexible display screen 30 in different areas and further improving the appearance flatness of the flexible display device.

[0107] In some embodiments, the first groove 221 has a dimension of h1 in the third direction Z, and the support portion 511 has a thickness of h2, wherein h1 and h2 satisfy: h2≤h1≤1.2h2. Optionally, h1 is one of h2, 1.05h2, 1.1h2, 1.15h2, and 1.2h2.

[0108] In this embodiment, by setting the dimension h1 of the first groove 221 in the third direction Z to be no less than the thickness h2 of the support portion 511, the assembly requirements between the first groove 221 and the support portion 511 are met, while allowing the support portion 511 to slide freely relative to the first groove 221, thereby satisfying the sliding deformation requirements of the flexible display device. Furthermore, the dimension h1 of the first groove 221 in the third direction Z is set to be no more than 1.2 times the thickness h2 of the support portion 511, thereby reducing the risk of excessive bulging of the support portion 511 extending into the first groove 221 in the third direction Z, thus improving the flatness of the flexible display device. Further, in some optional embodiments, the dimension of the first groove 221 in the third direction Z is equal to the thickness of the support portion 511, which helps to further reduce the risk of bulging and improve the user experience.

[0109] In some embodiments, please refer to Figure 6 and Figure 7 The first limiting groove 22 also includes a second groove 222 disposed on the periphery of the reel assembly 40, and the first groove 221 and the second groove 222 are connected. In the retracted state, a portion of the support portion 511 is located within the second groove 222.

[0110] In addition to the first groove 221, the first limiting groove 22 also includes a second groove 222. The second groove 222 is located on the periphery of the roll assembly 40, that is, the projection of the second groove 222 in the second direction Y surrounds the projection of the roll assembly 40 in the second direction Y. The dimensions and shape of the second groove 222 are not limited in this embodiment. Optionally, the projection of the second groove 222 in the second direction Y has an arc shape, and the height of the second groove 222 is the same as the dimension of the first groove 221 in the third direction Z.

[0111] Similar to the first groove 221, a portion of the flexible display screen 30 corresponding to the support portion 511 located within the second groove 222 can also perform display functions. Furthermore, in the retracted state, a portion of the support portion 511 is located within the second groove 222, meaning that a portion of the flexible display screen 30 corresponding to this portion of the support portion 511 can be constrained by the second groove 222 in the retracted state.

[0112] In this embodiment, by adding a second groove 222 to the first limiting groove 22, the second groove 222 restricts part of the support portion 511 in the contracted state, thereby reducing the risk of bulging of the flexible display screen 30 corresponding to the support portion 511. Furthermore, during the transition from the contracted state to the unfolded state, the support portion 511 needs to slide relative to the second groove 222 along its extension direction and enter the first groove 221, thereby restricting the sliding path of part of the support portion 511, reducing the risk of bulging of the support portion 511 and the corresponding part of the flexible display screen 30 during the sliding process, and improving the flatness of the flexible display device.

[0113] In some embodiments, one end of the second groove 222 is connected to the first groove 221, and the other end is cut off.

[0114] In this embodiment, the first limiting groove 22 includes only the first groove portion 221 and the second groove portion 222. The second groove portion 222 can limit the reliability of the movement path of the support portion 511 during the rotation around the scroll assembly 40, while the first groove portion 221 can limit the reliability of the movement path of the support portion 511 during horizontal sliding. The two work together to greatly improve the bulging problem of the flexible display screen 30. Thus, the flatness of the flexible display device can be greatly improved by using the first limiting groove 22 with a smaller extension size, which has strong practicality.

[0115] In some embodiments, please refer to Figures 6 to 8 The plurality of support portions 511 include a plurality of first portions 511a and a plurality of second portions 511b. In the extending direction of the support layer 50, the second portions 511b are located on the side of the first portions 511a away from the second support portion 52. In the unfolded state, the plurality of first portions 511a are respectively disposed in the first groove 221 and the second groove 222, and the second portions 511b are located outside the first limiting groove 22. Figure 8 The areas where multiple second divisions 511b are located are indicated by bold dashed lines.

[0116] Both the first section 511a and the second section 511b are support sections 511. The difference is that some structures in the flexible display screen 30 corresponding to the first section 511a are used to achieve the display effect in the unfolded state, while some structures in the flexible display screen 30 corresponding to the second section 511b are not used to achieve the display effect.

[0117] Based on this, the embodiments of this application adjust the extension dimension of the first limiting groove 22 so that, in the unfolded state, the support portion 511 corresponding to the part of the flexible display screen 30 used for display can be limited by the first limiting groove 22, while the support portion 511 corresponding to the part of the flexible display screen 30 not used for display will not extend into the first limiting groove 22, thereby reducing the influence of the first limiting groove 22 on this part of the support portion 511.

[0118] In some embodiments, at least a portion of the first portion 511a has a larger dimension in the second direction Y than the second portion 511b has a larger dimension in the second direction Y.

[0119] As described above, in the unfolded state, the second portion 511b does not extend into the first limiting groove 22, and in the retracted state, the second portion 511b also does not extend into the first limiting groove 22. Based on this, if the size of the second portion 511b in the second direction Y is the same as that of the first portion 511a in the second direction Y, the second portion 511b is prone to contact interference with the first wall 21, affecting the normal use of the flexible display device. Therefore, in this embodiment, at least a portion of the size of the first portion 511a in the second direction Y is set to be larger than the size of the second portion 511b in the second direction Y; that is, the second portion 511b has a smaller size in the second direction Y compared to the first portion 511a. This helps reduce contact interference between the second portion 511b and the first wall 21, improving the reliability of the flexible display device.

[0120] In some embodiments, please refer to Figure 9 and Figure 10 The first limiting groove 22 also includes a third groove 223, which is disposed on both sides of the roll assembly 40 in the third direction Z, and is connected to both ends of the second groove 222. In the retracted state, part of the support portion 511 is located in the third groove 223.

[0121] In addition to the first groove 221 and the second groove 222, the first limiting groove 22 may also include a third groove 223. The support portion 511 corresponding to the part of the flexible display screen 30 used for display can be limited by the first groove 221 and the second groove 222, while the support portion 511 corresponding to the part of the flexible display screen 30 not used for display can be limited by the third groove 223.

[0122] In the retracted state, a portion of the support section 511 is located within the third groove 223, which restricts this portion of the support section 511. Furthermore, during the transition from the retracted to the unfolded state, the support section 511 located within the third groove 223 can extend into the second groove 222 along the extension direction of the third groove 223. During this process, the presence of the third groove 223 reduces the risk of bulging in the support section 511 and the corresponding structural portion of the flexible display screen 30, thereby improving the flatness of the structure located around the roll assembly 40 in the flexible display screen 30 and enhancing the visual appeal and tactile feel of the flexible display device.

[0123] In some embodiments, in the retracted state, all support portions 511 are located within the first limiting groove 22.

[0124] In this embodiment, since the first limiting groove 22 includes a first groove portion 221, a second groove portion 222, and a third groove portion 223, the first groove portion 221, the second groove portion 222, and the third groove portion 223 can limit the entire support portion 511 in the contracted state, thereby improving the structural reliability of the flexible display device in the contracted state. Simultaneously, the first groove portion 221, the second groove portion 222, and the third groove portion 223 are interconnected, providing a fixed movement path for the sliding of the support portion 511, thereby reducing the risk of local bulging during state transitions of the flexible display device and improving the flatness of the flexible display device during use.

[0125] In some embodiments, the dimension of the first groove 221 in the first direction X is not less than the dimension of the third groove 223 in the first direction X.

[0126] Considering that the structure of the flexible display screen 30 corresponding to the support portion 511 extending into the first groove 221 is a major component for achieving the display effect, in order to further reduce the risk of bulging in this part of the structure, the embodiment of this application increases the size of the first groove 221 in the first direction X, so that the size of the first groove 221 in the first direction X is not less than the size of the third groove 223 in the first direction X. In this way, the first groove 221 can restrict more support portions 511, thereby improving the risk of bulging in more areas of the flexible display screen 30 and improving the flatness of the flexible display device.

[0127] In some embodiments, the dimensions of the first groove 221 in the third direction Z are the same as the dimensions of the third groove 223 in the third direction Z. In other words, the first groove 221 and the third groove 223 have the same height dimension.

[0128] In this embodiment, since both the first groove 221 and the second groove 222 are used to limit the support portion 511, their dimensions in the third direction Z can be set to be the same to further limit the risk of bulging of the support portion 511 in the third direction Z. Optionally, the dimensions of the first groove 221 and the third groove 223 in the third direction Z are both equal to the thickness of the support portion 511.

[0129] In some embodiments, please refer to Figure 11 and Figure 12 The first groove 221 is provided through one end in the first direction X, and in the contracted state, the second support 52 is located inside the first groove 221.

[0130] In this embodiment, the end of the first groove 221 away from the second groove 222 is not cut off, but is completely through. Based on this, the second support 52 in the contracted state can be located inside the first groove 221. In this way, the first groove 221 can not only restrict the support portion 511, but also restrict the second support 52, thereby reducing the risk of relative movement of the second support 52 relative to the fixed component 10 and improving the pressure resistance and deformation resistance of the flexible display device in the contracted state.

[0131] It should be noted that the present application embodiment does not limit the relative relationship between the first groove 221 and the second support 52 in the unfolded state. In the unfolded state, the second support 52 can extend into the first groove 221, or the second support 52 can be completely located outside the first groove 221.

[0132] In some embodiments, in the unfolded state, the second support portion 52 and at least a portion of the support portion 511 are located within the first groove portion 221.

[0133] In this embodiment, in the unfolded state, the second support portion 52 and at least a portion of the support portion 511 extend into the first groove 221. Thus, the first groove 221 can both restrict the second support portion 52 and the support portion 511. Furthermore, with this design, the presence of the first groove 221 helps improve the relative positional reliability between the second support portion 52 and at least a portion of the support portion 511, allowing them to be arranged side-by-side in the first direction X. This enables the flexible display screen 30 to have structures in different areas arranged side-by-side along the first direction X, thereby reducing the risk of bulging between different areas and improving the flatness and user experience of the flexible display device.

[0134] In some embodiments, the dimension of the second support portion 52 in the second direction Y is equal to the dimension of the support portion 511 in the second direction Y.

[0135] As described above, the second support portion 52 can extend into the first groove portion 221 in its contracted state. Based on this, in addition to increasing the size of at least a portion of the support portion 511 in the second direction Y, this embodiment also increases the size of the second support portion 52 in the second direction Y, allowing at least one end of the second support portion 52 to extend beyond the flexible display screen 30. Furthermore, this embodiment sets the size of the second support portion 52 in the second direction Y to be equal to the size of the support portion 511 in the second direction Y, thereby improving the dimensional uniformity of different regions of the support layer 50 in the second direction Y and simplifying the fabrication of the support layer 50.

[0136] In some embodiments, the first support portion 51 and the second support portion 52 are made of the same material.

[0137] In this embodiment, since the support portion 511 in the first support portion 51 and the second support portion 52 have the same dimensions in the second direction Y and both are made of the same material, the first support portion 51 and the second support portion 52 can be fabricated together in the same process, thereby simplifying the fabrication difficulty of the support layer 50 and improving the production efficiency of the flexible screen support structure.

[0138] Secondly, please refer to Figure 13 This application provides a flexible screen support structure for supporting a flexible display screen 30. The flexible screen support structure includes a fixing component 10, a sliding component 20, a scroll assembly 40, and a support layer 50. The sliding component 20 is slidably connected to the fixing component 10 along a first direction X. The sliding component 20 includes a first wall 21 in a second direction Y. The first wall 21 includes a wall body 25 and a first protrusion 26 protruding from the inner surface of the wall body 25. The scroll assembly 40 is disposed on the sliding component 20, and the axial direction of the scroll assembly 40 is parallel to the second direction Y.

[0139] The support layer 50 includes a first support portion 51, which includes a support surface supporting the flexible display screen 30. During the transition between the unfolded and retracted states of the flexible screen support structure, the first support portion 51 slides and deforms around the roll assembly 40. The first support portion 51 includes a plurality of spaced-apart support sections 511. In the unfolded state of the flexible screen support structure, a first protrusion 26 is disposed on one side of the support surface, and the projection of the first protrusion 26 in the third direction Z overlaps with the projection of the support section 511 in the third direction Z.

[0140] The flexible screen support structure provided in this application embodiment is used to form a flexible display device together with the flexible screen. The flexible display screen 30 is the main component in the flexible display device that realizes the display function. When the flexible display device is in use, the corresponding image information needs to be transmitted to the flexible display screen 30 and displayed through the flexible display screen 30. The flexible screen support structure is a mechanical component in the flexible display device that realizes the sliding and deformation function. The flexible display screen 30 is disposed on the flexible screen support structure and the two move synchronously to realize the switching of the flexible display device in different forms.

[0141] The flexible screen support structure has at least two states: an unfolded state and a retracted state. Compared to the retracted state, the unfolded flexible screen support structure has a larger dimension in the first direction X, allowing the flexible display device to display a larger image and thus improving the user experience. In the retracted state, the flexible screen support structure has a smaller dimension in the first direction X, allowing the flexible display device to be held with one hand and improving its portability.

[0142] Next, this application embodiment will introduce the specific structural composition of the flexible screen support structure. The fixed component 10 and the sliding component 20 are the core components of the flexible screen support structure. The two can cooperate with each other to form the overall outer frame of the flexible screen support structure. The sliding component 20 is slidably connected to the fixed component 10 along the first direction X. During the switching between the unfolded state and the retracted state, the sliding component 20 and the fixed component 10 slide relative to each other in the first direction X to change the overall size of the flexible screen support structure in the first direction X. At the same time, the flexible display screen 30 will deform together with the flexible screen support structure, thereby increasing or decreasing the maximum displayable screen of the flexible display device.

[0143] The roller assembly 40 is a key component in the flexible screen support structure that enables the flexible display screen 30 to bend and retract. The roller assembly 40 is disposed on the sliding assembly 20, and the rotating assembly can rotate relative to the sliding assembly 20 along the second direction Y. The support layer 50 is a support component in the flexible screen support structure used to support the flexible display screen 30. The support layer 50 includes a first support portion 51, which can be bent and deformed together with the flexible display screen 30. Optionally, the first direction X and the second direction Y are perpendicular to each other.

[0144] In the retracted state, a portion of the flexible display screen 30 and the first support portion 51 bend around the scroll assembly 40, allowing at least a portion of the flexible display screen 30 to be hidden inside the flexible display device. During the transition from the retracted to the unfolded state, the bent portion of the flexible display screen 30 and the first support portion 51 move relative to the scroll assembly 40, and the scroll assembly 40 rotates relative to the sliding assembly 20. This causes a portion of the flexible display screen 30 to protrude from inside the flexible display device, thereby increasing the size of the displayable image.

[0145] Typically, to meet support requirements, the first support portion 51 is made of a material with high strength, such as steel. Furthermore, to meet the bending requirements of the first support portion 51, this embodiment of the application provides that the first support portion 51 includes multiple support sections 511, which are spaced apart and arranged side-by-side in the extending direction of the support layer 50.

[0146] The first support portion 51 includes a support surface, which is the surface of the first support portion 51 used to support and carry the flexible display screen 30. Since the first support portion 51 includes a plurality of support portions 511 arranged at intervals, the support surface is composed of the surfaces of the plurality of support portions 511 facing the flexible display screen 30.

[0147] In related technologies, during the process of changing from a contracted state to an unfolded state, the support portion 511 moves together with the flexible display screen 30 relative to the roll assembly 40. During the movement, the support portion 511 may cause the flexible display screen 30 to move together in the extension direction perpendicular to the support layer 50, thereby causing the flexible display screen 30 to bulge locally, affecting the appearance flatness of the flexible display device.

[0148] Therefore, the dimensions of the first wall 21 in the sliding component 20 have been adjusted in this embodiment. Specifically, the first wall 21 is the side wall of the sliding component 20 in the second direction Y. Taking the flexible display device as an example where it can be stretched and deformed to the left and right, the first wall 21 can be the upper side wall or the lower side wall of the sliding component 20. Optionally, the scroll assembly 40 can be rotatably connected to the first wall 21.

[0149] The wall body 25 is the main part of the first wall 21, and it can be arranged parallel to the first direction X and the third direction Z. Based on the wall body 25, this embodiment adds a first protrusion 26. The first protrusion 26 protrudes relative to the inner surface of the wall body 25 and is located on one side of the support surface, that is, on the side where the support portion 511 tends to bulge. In the unfolded state, the projection of the first protrusion 26 on the third direction Z overlaps with the projection of the support portion 511 on the third direction Z. Thus, if the support portion 511 causes a bulging problem in a portion of the flexible display screen 30, the blocking effect of the first protrusion 26 helps to improve the degree of bulging.

[0150] It should be noted that the present application embodiment does not impose a limitation on the minimum distance between the first protrusion 26 and the support portion 511 in the unfolded state. In the unfolded state, the first protrusion 26 can be directly in contact with the support portion 511, or the two can be separated by a small distance, as long as the bulging problem can be improved.

[0151] Furthermore, the dimensions of the support portion 511 in the second direction Y are not limited in this embodiment. The support portion 511 in this embodiment may have the same dimensions as the support portion 511 in the related art in the second direction Y, meaning the support portion 511 does not extend beyond the flexible display screen 30 in the second direction Y. In this case, the projection of the first protrusion 26 in the third direction Z overlaps with both the projections of the support portion 511 and the flexible display screen 30 in the third direction Z. Alternatively, in other embodiments, this embodiment may increase the dimensions of the support portion 511 in the second direction Y. In this case, the support portion 511 will extend beyond the flexible display screen 30 in the second direction Y, and the first protrusion 26 may be arranged side-by-side with the flexible display screen 30 in the second direction Y. In this situation, the projection of the first protrusion 26 in the third direction Z only overlaps with the projection of the support portion 511 in the third direction Z, and does not overlap with the projection of the flexible display screen 30 in the third direction Z.

[0152] In summary, in this embodiment of the application, by adding a first protrusion 26 to the first wall 21, the first protrusion 26 can block the support portion 511 and the flexible display screen 30 in the corresponding area, reduce the movement of the support portion 511 and the flexible display screen 30 in the extension direction perpendicular to the support layer 50, thereby improving the degree of bulging, improving the appearance flatness of the flexible display device in the unfolded state, and improving the user's user experience.

[0153] In some embodiments, please refer to Figure 14The first wall 21 also includes a second protrusion 27 protruding from the inner surface of the wall body 25. The first protrusion 26 and the second protrusion 27 are spaced apart in the third direction Z. The wall body 25, the first protrusion 26, and the second protrusion 27 together enclose a limiting space 28. In the unfolded state of the flexible screen support structure, at least a portion of the support portion 511 is located within the limiting space 28.

[0154] In addition to the first protrusion 26, the first wall 21 also includes a second protrusion 27. Similar to the first protrusion 26, the second protrusion 27 also protrudes relative to the inner surface of the wall body 25. The protrusion dimension of the second protrusion 27 relative to the wall body 25 in the second direction Y may be the same as or different from that of the first protrusion 26 relative to the wall body 25 in the second direction Y.

[0155] The first protrusion 26 and the second protrusion 27 are spaced apart in the third direction Z and together with the wall body 25 define a limiting space 28. In the unfolded state, at least a portion of the support portion 511 is located within the limiting space 28, that is, the support portion 511 can extend into the limiting space 28. Under this design, at least a portion of the support portion 511 in the unfolded state is restricted by the limiting space 28, thereby reducing the movement of the support portion 511 and the flexible display screen 30 in the extension direction perpendicular to the support layer 50, thereby reducing the degree of bulging and improving the flatness of the flexible display device in the unfolded state.

[0156] In some embodiments, the dimension of the limiting space 28 in the third direction Z is equal to the thickness of the support portion 511.

[0157] In this embodiment, by setting the dimension of the limiting space 28 in the third direction Z to be equal to the thickness of the support portion 511, the assembly requirements between the support portion 511 and the limiting space 28 are met. In addition to meeting the requirement for free sliding of the support portion 511 relative to the extension direction of the limiting space 28, it also helps to further reduce the movement of the support portion 511 and the flexible display screen 30 in the extension direction perpendicular to the support layer 50, thereby reducing the degree of bulging and improving the flatness of the flexible display device in the unfolded state.

[0158] In some embodiments, the support layer 50 further includes a second support portion 52, which is spaced apart from the first support portion 51 in the extending direction of the support layer 50, and the second support portion 52 is located on one side of the roll assembly 40 along the third direction Z. In the retracted state, the second support portion 52 is located within the limiting space 28.

[0159] In this embodiment, the second support portion 52 in the contracted state can be located within the limiting space 28 formed by the wall body 25, the first protrusion 26, and the second protrusion 27. In this way, the limiting space 28 not only restricts the support portion 511, but also restricts the second support portion 52, thereby reducing the risk of relative movement of the second support portion 52 relative to the fixed component 10 and improving the pressure resistance and deformation resistance of the flexible display device in the contracted state.

[0160] It should be noted that the relative relationship between the limiting space 28 and the second support part 52 in the unfolded state is not limited in this embodiment. In the unfolded state, the second support part 52 can extend into the limiting space 28, or the second support part 52 can be completely located outside the limiting space 28.

[0161] Thirdly, such as Figure 2 and Figure 3 As shown, this application provides a flexible display device, which includes a flexible display screen 30 and a flexible screen support structure as described in any of the foregoing embodiments.

[0162] It should be noted that the flexible display device provided in this application embodiment has the beneficial effects of the flexible screen support structure in any of the foregoing embodiments. For details, please refer to the foregoing description of the beneficial effects of the flexible screen support structure. This application embodiment will not repeat the description.

[0163] In some embodiments, at least one end of the support portion 511 extends beyond the flexible display screen 30 in the second direction Y.

[0164] In this embodiment, by extending the support portion 511 beyond the flexible display screen 30, the portion of the support portion 511 extending beyond the flexible display screen 30 can extend into the first limiting groove 22, or overlap with the first protrusion 26 in the third direction Z, thereby fulfilling the limiting requirement for the support portion 511. Simultaneously, this design allows the flexible display screen 30 to be completely outside the first limiting groove 22, or to be misaligned with the first protrusion 26 in the third direction Z, thereby reducing contact interference between the flexible screen support structure and the flexible display screen 30, and reducing the impact of compression and impacts on the flexible display screen 30. Further optionally, both ends of the support portion 511 in the second direction Y extend beyond the flexible display screen 30.

[0165] In some embodiments, the support portion 511 extends beyond the flexible display screen 30 by a dimension L in the second direction Y, where L satisfies 2mm ≤ L ≤ 5mm. Optionally, L is one of 2mm, 3mm, 4mm, and 5mm.

[0166] In this embodiment, by setting the dimension L of the support portion 511 extending beyond the flexible display screen 30 in the second direction Y to be no less than 2mm, the larger structures in the support portion 511 can be blocked and limited, thereby improving the degree of bulging. Simultaneously, the dimension of the support portion 511 extending beyond the flexible display screen 30 in the second direction Y is set to be no more than 5mm, thereby reducing the overall size of the flexible display device in the second direction Y, decreasing the bezel size of the flexible display device, and improving the user experience.

[0167] While the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit the invention. Any person skilled in the art to which this application pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of protection of this application shall still be determined by the scope defined in the appended claims.

[0168] The above description is merely a specific embodiment of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, substitutions for other connection methods described above can be made by referring to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application.

Claims

1. A flexible screen support structure, characterized in that, The flexible screen support structure includes: Fixed components; A sliding component is slidably connected to the fixed component along a first direction. The sliding component includes a first wall in a second direction and a first limiting groove formed by the inward recess of the first wall. The first direction intersects the second direction. A scroll assembly is disposed on the sliding assembly, wherein the axial direction of the scroll assembly is parallel to the second direction; The support layer includes a first support portion, which slides and deforms around the scroll assembly during the transition between the unfolded and retracted states of the flexible screen support structure. The first support portion includes a plurality of support segments spaced apart. In the unfolded state of the flexible screen support structure, at least a portion of the support segments are located within the first limiting groove.

2. The flexible screen support structure according to claim 1, characterized in that, The support layer further includes a second support portion, which is spaced apart from the first support portion in the extending direction of the support layer, and the second support portion is located on one side of the roll assembly along a third direction, wherein the first direction, the second direction, and the third direction intersect each other. In the third direction, at least a portion of the first limiting groove is located on the side of the reel assembly facing the second support portion; Preferably, the second support portion is straight and extends along the first direction; Preferably, in the extending direction of the support layer, the size of a single support portion is smaller than the size of the second support portion; Preferably, the sliding component further includes a second wall disposed opposite to the first wall in the second direction, and a second limiting groove formed by the inward recess of the second wall, wherein at least a portion of the support portion is located within the second limiting groove in the unfolded state of the flexible screen support structure.

3. The flexible screen support structure according to claim 2, characterized in that, The first limiting groove includes a first groove portion, which is located on the side of the reel assembly facing the second support portion in the third direction. In the unfolded state, the support portion adjacent to the second support portion is located within the first groove portion; Preferably, in the unfolded state, the plurality of support portions are located within the first groove. Preferably, the dimension of the first groove in the third direction is h1, and the thickness of the support portion is h2, wherein h1 and h2 satisfy: h2≤h1≤1.2h2; Preferably, the dimension of the first groove in the third direction is equal to the thickness of the support portion.

4. The flexible screen support structure according to claim 3, characterized in that, The first limiting groove also includes a second groove portion disposed on the periphery of the roll assembly, and the first groove portion and the second groove portion are connected. In the contracted state, a portion of the support portion is located within the second groove. Preferably, one end of the second groove is connected to the first groove, and the other end is cut off; Preferably, the plurality of support portions include a plurality of first portions and a plurality of second portions, wherein, in the extending direction of the support layer, the second portions are located on the side of the first portions away from the second support portion; In the unfolded state, multiple first portions are disposed in the first groove and the second groove, and the second portions are located outside the first limiting groove; Preferably, at least a portion of the first portion has a larger dimension in the second direction than the second portion has a larger dimension in the second direction.

5. The flexible screen support structure according to claim 4, characterized in that, The first limiting groove also includes a third groove, which is disposed on both sides of the reel assembly in the third direction and is connected to both ends of the second groove. In the contracted state, a portion of the support portion is located within the third groove. Preferably, in the contracted state, all of the support portions are located within the first limiting groove; Preferably, the dimension of the first groove in the first direction is not less than the dimension of the third groove in the first direction; Preferably, the dimension of the first groove in the third direction is the same as the dimension of the third groove in the third direction.

6. The flexible screen support structure according to claim 3, characterized in that, The first groove is provided through one end in the first direction, and in the contracted state, the second support is located inside the first groove; Preferably, in the unfolded state, the second support portion and at least a portion of the support portion are located within the first groove. Preferably, the dimension of the second support portion in the second direction is equal to the dimension of the support portion in the second direction; Preferably, the first support portion and the second support portion are made of the same material.

7. A flexible screen support structure, characterized in that, The flexible screen support structure includes: Fixed components; A sliding component is slidably connected to the fixed component along a first direction, and the sliding component includes a first wall in a second direction. The first wall includes a wall body and a first protrusion protruding from the inner surface of the wall body. A scroll assembly is disposed on the sliding assembly, wherein the axial direction of the scroll assembly is parallel to the second direction; The support layer includes a first support portion, which includes a support surface that supports the flexible display screen. During the transition between the unfolded and retracted states of the flexible screen support structure, the first support portion slides and deforms around the scroll assembly. The first support portion includes a plurality of support portions spaced apart. In the unfolded state of the flexible screen support structure, the first protrusion is disposed on one side of the support surface, and the projection of the first protrusion in the third direction overlaps with the projection of the support portions in the third direction. The first direction, the second direction, and the third direction intersect each other.

8. The flexible screen support structure according to claim 7, characterized in that, The first wall includes a second protrusion that protrudes from the inner surface of the wall body. The first protrusion and the second protrusion are spaced apart in the third direction. The wall body, the first protrusion, and the second protrusion together enclose a limiting space. In the unfolded state of the flexible screen support structure, at least a portion of the support portion is located within the limiting space; Preferably, the dimension of the limiting space in the third direction is equal to the thickness of the supporting portion; Preferably, the support layer further includes a second support portion, which is spaced apart from the first support portion in the extending direction of the support layer, and the second support portion is located on one side of the roll assembly along the third direction; In the contracted state, the second support portion is located within the limiting space.

9. A flexible display device, characterized in that, Includes a flexible display screen and a flexible screen support structure as described in any one of claims 1 to 8.

10. The flexible display device according to claim 9, characterized in that, At least one end of the support portion extends beyond the flexible display screen in the second direction; Preferably, both ends of the support portion in the second direction extend beyond the flexible display screen; Preferably, the support portion extends beyond the flexible display screen by a dimension L in the second direction, where L satisfies 2mm ≤ L ≤ 5mm.

Images