Flexible display device and display terminal
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BOE TECHNOLOGY GROUP CO LTD
- Filing Date
- 2022-06-29
- Publication Date
- 2026-06-02
Smart Images
Figure CN117693780B_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of display product manufacturing technology, and in particular to a flexible display device and display terminal. Background Technology
[0002] With the development of display technology, display devices are now widely used, leading to increasingly higher performance requirements for screens. Flexible screens are characterized by their bendability and rollability. Utilizing the flexibility of display devices, people can roll or fold them, bringing convenience to carrying and using them. The sliding roll design, which combines folding and rolling, offers advantages in both appearance and practicality.
[0003] The sliding roll form factor offers more screen display area and a more aesthetically pleasing appearance. However, the flexible modules in the overall structure are prone to issues such as warping at the end of the module leading to scratches, excessive bulging of the module, and unstable stress on the module. Summary of the Invention
[0004] To address the aforementioned technical problems, this disclosure provides a flexible display device and display terminal, resolving issues such as module scratches caused by module tail warping.
[0005] To achieve the above objectives, the technical solution adopted in this embodiment is: a flexible display device, including a housing, a flexible display screen, a support member, and a sliding shaft. The support member is located between the flexible display screen and the sliding shaft and is used to drive the flexible display screen to be rolled onto the sliding shaft. The sliding shaft is rotatably disposed within the housing. The device also includes a limiting structure disposed between the support member and the housing to maintain a gap between the flexible display screen and the housing.
[0006] Optionally, the limiting structure includes at least one rigid track disposed on the side of the support member away from the flexible display screen. The rigid track is wound around the sliding shaft in a U-shape, and the opposite ends of the rigid track are fixed to the housing.
[0007] Optionally, along the winding direction of the flexible display screen, the flexible display screen includes a first end disposed near the sliding shaft, wherein when the flexible display screen is in the winding state, the orthographic projection of the first end on the rigid track is located on the rigid track.
[0008] Optionally, at least one of the rigid tracks is spaced apart in the middle region of the flexible display screen in a direction parallel to the axial direction of the sliding shaft.
[0009] Optionally, along the extension direction of the rigid track, the support member is provided with a plurality of connecting structures at intervals for connecting the rigid track.
[0010] Optionally, the connection structure includes two L-shaped connectors arranged opposite to each other in a first direction. Each L-shaped connector includes a first connecting rod connected to the support and a second connecting rod perpendicularly connected to the first connecting rod. The first direction is parallel to the axial direction of the sliding shaft. The extension direction of the first connecting rod is perpendicular to the display surface of the flexible display screen, and the extension direction of the second connecting rod is parallel to the axial direction of the sliding shaft.
[0011] The rigid track has an I-shaped cross-section on the display surface perpendicular to the flexible display screen. The rigid track includes a first connecting plate, a second connecting plate, and a support plate connected between the first connecting plate and the second connecting plate. The first connecting plate is inserted between the two L-shaped connectors.
[0012] Optionally, the connection structure includes an inverted T-shaped structure formed by connecting a third connecting rod and a fourth connecting rod. One end of the third connecting rod is connected to the support member, and the other end of the third connecting rod is connected to the middle of the fourth connecting rod. The extension direction of the third connecting rod is perpendicular to the display surface of the flexible display screen, and the extension direction of the fourth connecting rod is parallel to the extension direction of the sliding shaft.
[0013] The rigid track is provided with a strip-shaped groove extending along the extension direction of the rigid track. The opening of the strip-shaped groove is opened on the connecting surface of the rigid track near the support member. The opening is a strip-shaped opening extending along the extension direction of the rigid track and penetrating the rigid track. The width of the opening in the direction perpendicular to the extension direction of the rigid track is less than the length of the fourth connecting rod.
[0014] Optionally, the connection structure includes two parallel fifth connecting rods arranged opposite to each other, the fifth connecting rods being perpendicular to the display surface of the flexible display screen, and a rotatable connecting shaft connecting the two fifth connecting rods;
[0015] The rigid track passes between the connecting shaft and the support member.
[0016] Optionally, along a direction perpendicular to the axial direction of the slide shaft, the support member includes a plurality of spaced-apart support bars, the extension direction of the support bars being parallel to the axial direction of the slide shaft, and at least a portion of the support bars being provided with the connecting structure.
[0017] Optionally, the connecting structure and the support strip are an integral structure.
[0018] Optionally, the outer circumferential surface of the sliding roller is provided with a strip-shaped groove that cooperates with the support bar, and each strip-shaped groove is provided with at least one notch that corresponds one-to-one with the rigid track to accommodate the rigid track.
[0019] Optionally, the support member is connected to the flexible display screen via an optical adhesive layer.
[0020] Optionally, the limiting structure includes a first magnetic structure and a second magnetic structure with the same magnetism, wherein the first magnetic structure is disposed on the side of the support member away from the flexible display screen, and the second magnetic structure is disposed on the housing.
[0021] Optionally, the support member can be reused as the first magnetic structure.
[0022] Optionally, the flexible display screen includes a display area and a non-display area. The non-display area is wound around the sliding shaft. The display area can be extended and retracted under the drive of the sliding shaft. The side of the support member away from the flexible display screen includes a first area corresponding to the display area. A support portion is provided on the first area. A third magnetic structure with the opposite magnetic properties to the first magnetic structure is provided on the support portion.
[0023] This disclosure also provides a display terminal, including the flexible display device described above.
[0024] The beneficial effect of this disclosure is that, by setting the limiting structure, a gap is always maintained between the flexible display screen and the housing, thereby preventing the tail end of the flexible display screen from lifting up and contacting the housing during the rolling process, thus preventing scratches and other defects. Attached Figure Description
[0025] Figure 1 This diagram illustrates the structure of a flexible display device in related technologies.
[0026] Figure 2 This diagram illustrates the structure of the flexible display device in an embodiment of the present disclosure. Figure 1 ;
[0027] Figure 3 This diagram illustrates the structure of the flexible display device in an embodiment of the present disclosure. Figure 2 ;
[0028] Figure 4 This diagram illustrates the structure of the flexible display device in an embodiment of the present disclosure. Figure 3 ;
[0029] Figure 5 express Figure 4 A magnified view of a portion of the image;
[0030] Figure 6 This diagram illustrates the connection state between the rigid track and the connecting structure in the embodiments of this disclosure. Figure 1 ;
[0031] Figure 7 This diagram illustrates the connection state between the rigid track and the connecting structure in the embodiments of this disclosure. Figure 2 ;
[0032] Figure 8 This diagram illustrates the connection state between the rigid track and the connecting structure in the embodiments of this disclosure. Figure 3 ;
[0033] Figure 9 This diagram illustrates the structure of the flexible display device in an embodiment of the present disclosure. Figure 4 ;
[0034] Figure 10 This diagram illustrates the structure of the flexible display device in an embodiment of the present disclosure. Figure 5 ;
[0035] Figure 11 This diagram illustrates the structure of the flexible display screen in an embodiment of the present disclosure.
[0036] Figure 12 A schematic diagram showing the winding state of a flexible display device;
[0037] Figure 13 A schematic diagram showing the unfolded state of the flexible display device. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure are within the scope of protection of this disclosure.
[0039] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure 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 disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0040] Figure 1This is a schematic diagram illustrating the state in which the tail end of the flexible display screen 2 is raised and in contact with the housing 1 in the relevant technology. Figure 12 This is a schematic diagram showing the flexible display screen in a rolled-up state through a sliding motion. Figure 13 This diagram illustrates the unfolded state of the flexible display screen, which is exposed through a sliding motion. Friction between the flexible display screen 2 and the housing 1 causes scratches and other issues.
[0041] refer to Figures 2-11 To address the aforementioned issues, this embodiment provides a flexible display device, comprising a housing 1, a flexible display screen 2, a support member 6, and a sliding shaft 3. The support member 6 is located between the flexible display screen and the sliding shaft 3, and is used to drive the flexible display screen 2 to be rolled onto the sliding shaft 3. The sliding shaft 3 is rotatably disposed within the housing 1. The device also includes a limiting structure disposed between the support member 6 and the housing 1, for maintaining a gap between the flexible display screen 2 and the housing 1.
[0042] By setting the limiting structure, a gap is always maintained between the flexible display screen 2 and the housing 1 during the rolling process, avoiding contact between the flexible display screen 2 and the housing 1, thereby preventing scratches and other problems caused by contact between the flexible display screen 2 and the housing 1.
[0043] refer to Figures 2-8 In an exemplary embodiment, the limiting structure includes at least one rigid track 4 disposed on the side of the support member 6 away from the flexible display screen 2. The rigid track 4 is wound around the sliding roller 3 in a U-shaped structure, and the opposite ends of the rigid track 4 are fixed to the housing 1.
[0044] The flexible display screen 2 has a certain length in the axial direction of the sliding shaft 3. The two ends of the flexible display screen 2 in the axial direction of the sliding shaft 3 are slidably connected to the housing 1, but there is no fixed connection in the middle area to facilitate the sliding movement. In this case, when the flexible display screen 2 slides around the sliding shaft 3, when part of the flexible display screen 2 slides to the bottom of the sliding shaft 3 (i.e., the backlight side of the display area of the flexible display screen 2), the tail end of the flexible display screen 2 will be lifted up due to the rebound force, especially in the local area in the axial direction of the sliding shaft 3. The rigid track 4 applies a force to the flexible display screen 2 parallel to the light emission direction of the flexible display screen 2 (i.e., a force perpendicular to the display surface 203 of the flexible display screen), thereby preventing the flexible display screen 2 from being lifted towards the housing, keeping the flexible display screen flat, and avoiding contact between the flexible display screen 2 and the housing 1.
[0045] It should be noted that the flexible display device includes a fixed part and a telescopic part. The telescopic part can telescopically move relative to the fixed part. The sliding shaft 3 and the rigid track 4 are located in the telescopic part. The rigid track 4 can slide as the sliding shaft 3 slides. That is, the rigid track 4 can telescopically move in a direction perpendicular to the axial direction of the sliding shaft 3.
[0046] In an exemplary embodiment, along the winding direction of the flexible display screen 2 (refer to...) Figure 2 In the direction X), the flexible display screen 2 includes a first end located near the sliding shaft 3. When the flexible display screen 2 is in the winding state, the orthogonal projection of the first end on the rigid track 4 is located on the rigid track 4.
[0047] The rigid track 4 serves to support the flexible display screen 2, maintain the flatness of the flexible display screen 2, and ensure that there is always a gap between the flexible display screen 2 and the housing 1 during the rolling process. The part of the flexible display screen 2 that is prone to warping includes the first end. Therefore, the first end of the flexible display screen 2 needs to be supported by the rigid track 4. The orthographic projection of the first end on the rigid track 4 is located on the rigid track 4. For example, the end face of the first end is flush with the corresponding end face of the rigid track 4, or the end face of the first end is located on the side of the corresponding end face of the rigid track 4 closer to the rolling shaft 3. That is, the orthographic projection of the first end on the rigid track 4 is located inside the rigid track 4.
[0048] In an exemplary embodiment, at least one of the rigid tracks 4 is spaced apart in the middle region of the flexible display screen 2 in a direction parallel to the axial direction of the sliding roller 3.
[0049] Since the two opposite sides of the flexible display screen 2 are slidably connected to the housing 1 in a direction parallel to the axial direction of the sliding roller 3, but the middle area is not supported and fixed, the middle area is prone to warping. Setting the rigid track 4 in this area can effectively prevent the flexible display screen from warping and prevent the flexible display screen 2 from contacting the housing 1.
[0050] The intermediate area can be referenced. Figure 3 The area represented by the dashed rectangle in the figure is not limited to this. The opposite sides of the flexible display screen 2 are slidably connected to the housing 1. The area between the two sides fixed to the housing 1 can be considered as the middle area.
[0051] It should be noted that the number of the rigid tracks 4 can be set according to actual needs.
[0052] It should be noted that when there are at least two rigid tracks 4, the distance between two adjacent rigid tracks 4 can be set according to actual needs.
[0053] It should be noted that the width of the rigid track 4 in the direction parallel to the axial direction of the sliding shaft 3 can be set according to actual needs. When there are at least two rigid tracks 4, the widths of the at least two rigid tracks 4 in the direction parallel to the axial direction of the sliding shaft 3 can be exactly the same, completely different, or partially the same.
[0054] In one embodiment, the flexible display screen 2 includes a first region, and the width of the rigid track 4 is greater than or equal to the width of the first region in a direction parallel to the axial direction of the sliding shaft 3, but is not limited thereto.
[0055] In an exemplary embodiment, along the extending direction of the rigid track 4, the support member 6 is provided with a plurality of connecting structures 5 at intervals for connecting the rigid track 4.
[0056] The rigid track 4 serves to support the flexible display screen 2. However, in order to ensure its supporting performance, the rigid track 4 can only slide (extend and retract in the direction perpendicular to the axial direction of the sliding shaft 3) and cannot roll. The flexible display screen 2 needs to roll around the sliding shaft 3. Therefore, the connecting structure 5, in addition to connecting the rigid track 4 and the flexible display screen 2, also needs to ensure that the flexible display screen 2 can move relative to the rigid track 4.
[0057] refer to Figure 6 , Figure 6 This is a cross-sectional view in the second direction, which is perpendicular to the display surface 203 of the flexible display screen and perpendicular to the extension direction of the rigid track. In an exemplary embodiment, the connecting structure 5 includes two L-shaped connectors arranged opposite each other in the first direction. Each L-shaped connector includes a first connecting rod 51 connected to the support member 6 and a second connecting rod 52 perpendicularly connected to the first connecting rod 51. The first direction is parallel to the axial direction of the sliding shaft 3. The extension direction of the first connecting rod 51 is parallel to the light emission direction of the flexible display screen 2 (i.e., the extension direction of the first connecting rod 51 is perpendicular to the display surface 203 of the flexible display screen 2), and the extension direction of the second connecting rod 52 is parallel to the axial direction of the sliding shaft 3.
[0058] The rigid track 4 has an I-shaped cross section in the direction of light emission parallel to the flexible display screen 2 (i.e., in the direction perpendicular to the display surface 203 of the flexible display screen). The rigid track 4 includes a first connecting plate 41 and a second connecting plate 42 opposite to each other, and a support plate 43 connecting the first connecting plate 41 and the second connecting plate 42. The first connecting plate 41 is inserted between the two L-shaped connectors.
[0059] For example, there is a gap between the second connecting rod 52 and the support plate 43, which ensures that the flexible display screen 2 can slide relative to the rigid track 4.
[0060] For example, in the direction perpendicular to the flexible display screen 2, the width of the second connecting rod 52 (in the example where the second connecting rod 52 is a cylinder, this is the diameter of the second connecting rod 52) is smaller than the length of the support plate 43, ensuring that the second connecting rod 52 can move within the space formed by the first connecting plate 41, the second connecting plate 42 and the support plate 43.
[0061] For example, the thickness of the first connecting plate 41 is less than the length of the first connecting rod 51 in the direction perpendicular to the flexible display screen 2, thereby reducing the contact area between the flexible display screen 2 and the rigid track 4.
[0062] The rigid track 4 is not limited to the I-shaped structure. In one embodiment, the rigid track 4 can be a strip structure, which is inserted between two L-shaped connectors.
[0063] refer to Figure 7 , Figure 7 This is a cross-sectional view in the second direction, which is perpendicular to the display surface 203 of the flexible display screen and perpendicular to the extension direction of the rigid track. In an exemplary embodiment, the connecting structure 5 includes an inverted T-shaped structure formed by connecting a third connecting rod 53 and a fourth connecting rod 54. One end of the third connecting rod 53 is connected to the support member 6, and the other end of the third connecting rod 53 is connected to the middle of the fourth connecting rod 54. The extension direction of the third connecting rod 53 is parallel to the light emission direction of the flexible display screen 2 (i.e., the extension direction of the third connecting rod 53 is perpendicular to the display surface 203 of the flexible display screen 2), and the extension direction of the fourth connecting rod 54 is parallel to the extension direction of the sliding shaft 3.
[0064] The rigid track 4 is provided with strip-shaped recesses 3 and 4 extending along the extension direction of the rigid track 4. The opening 431 of the strip-shaped recess 44 is opened on the connecting surface of the rigid track 4 near the support member 6. The opening 431 is a strip-shaped opening extending along the extension direction of the rigid track 4 and penetrating the rigid track 4. The width of the opening 431 in the direction perpendicular to the extension direction of the rigid track 4 is less than the length of the fourth connecting rod 54.
[0065] The T-shaped structure is inserted into the strip groove 44. In the direction perpendicular to the extension direction of the strip groove 44, the maximum width of the third connecting rod 53 is less than the width of the opening, ensuring the free sliding of the connecting structure 5.
[0066] In a direction perpendicular to the extension direction of the strip groove 44 (and parallel to the direction of the flexible display screen 2), the length of the fourth connecting rod 54 is less than the distance between the two opposing inner walls of the strip groove 44.
[0067] In the direction perpendicular to the flexible display screen 2, the maximum width of the fourth connecting rod 54 is less than the depth of the strip groove 44.
[0068] refer to Figure 8 , Figure 8 This is a cross-sectional view in the second direction, which is perpendicular to the display surface 203 of the flexible display screen and perpendicular to the extension direction of the rigid track. In an exemplary embodiment, the connecting structure 5 includes two parallel fifth connecting rods 55 arranged opposite each other. The fifth connecting rods 55 are arranged parallel to the light emission direction of the flexible display screen 2 (i.e., the fifth connecting rods 55 are arranged perpendicular to the display surface 203 of the flexible display screen 2), and a rotatable connecting shaft 56 connects the two fifth connecting rods 55.
[0069] The rigid track 4 passes between the connecting shaft 56 and the support member 6.
[0070] The connection shaft 56 reduces the frictional force when the flexible display screen 2 moves relative to the rigid track 4.
[0071] In an exemplary embodiment, the support member 6 includes a plurality of spaced support bars 61 in a direction perpendicular to the axial direction of the slide roller 3. The extending direction of the support bars 61 is parallel to the axial direction of the slide roller 3, and at least a portion of the support bars 61 are provided with the connecting structure 5.
[0072] Figure 4 and Figure 5 In the embodiments shown ( Figure 5 yes Figure 4 (Enlarged schematic diagram of the area represented by the dashed rectangle in the middle), each of the support bars 61 is provided with the connecting structure 5, but is not limited thereto.
[0073] For example, in the direction perpendicular to the axial direction of the sliding shaft 3, the number of support bars located between two adjacent connecting structures 5 can be set according to actual needs, and can be 0, 1, or more than 1. In order to make the rigid track uniformly stressed, the number of support bars located between two adjacent connecting structures 5 is the same.
[0074] In an exemplary embodiment, the connecting structure 5 and the support strip 61 are integrally formed. The connecting structure 5 and the support strip are formed using a simultaneous process, simplifying the manufacturing process.
[0075] In an exemplary embodiment, the outer circumferential surface of the sliding roller 3 is provided with a strip-shaped groove that mates with the support bar 61. Each strip-shaped groove is provided with at least one notch 31 corresponding to the rigid rail 4 to accommodate the rigid rail 4. (Refer to...) Figure 4 .
[0076] The strip-shaped slots correspond one-to-one with the strip-shaped protrusions, so as to drive the flexible display screen 2 to slide through the sliding shaft 3. The notch 31 is set to avoid obstacles.
[0077] In an exemplary embodiment, the support member 6 is connected to the flexible display screen 2 via an optical adhesive layer 62.
[0078] refer to Figure 9 In an exemplary embodiment, the limiting structure includes a first magnetic structure and a second magnetic structure with the same magnetism. The first magnetic structure is disposed on the side of the support member 6 away from the flexible display screen 2, and the second magnetic structure 7 is disposed on the housing 1.
[0079] By utilizing the principle of like poles repelling each other, the distance between the flexible display screen 2 and the housing 1 is maintained through the arrangement of the first magnetic structure and the second magnetic structure 7, thus preventing the flexible display screen 2 and the housing 1 from contacting each other.
[0080] In an exemplary embodiment, the support member 6 is reused as the first magnetic structure.
[0081] The support member 6 can be made of a metal with a preset polarity (the same polarity as the second magnetic structure), which simplifies the structure.
[0082] refer to Figure 10 , Figure 12 and Figure 13 , Figure 12Indicates the winding state of the flexible display device. Figure 13 Indicating the unfolded state of the flexible display device, in an exemplary embodiment, the flexible display screen 2 includes a display area 201 and a non-display area 202. The non-display area 202 is wound around the sliding shaft 3. The display area 201 can extend and retract under the drive of the sliding shaft 3. In the retracted state, part of the display area slides into the housing 1. In the unfolded state, the entire display area 201 slides to the display side for display. The side of the support member 6 away from the flexible display screen 2 includes a first area corresponding to the display area 201. A support portion 8 is provided on the first area. A third magnetic structure 81 with the opposite magnetism to the first magnetic structure is provided on the support portion 8.
[0083] The arrangement of the third magnetic structure 81 and the first magnetic structure ensures that the support portion 8 is in close contact with the flexible display screen 2, thereby guaranteeing the flatness of the flexible display screen 2.
[0084] For example, the support portion 8 includes a plurality of sub-support portions spaced apart, which are arranged in a comb-like pattern, but are not limited thereto.
[0085] Reference Figure 11 The schematic diagram of the flexible display screen 2 shown indicates that the flexible display screen 2 may include a metal support layer 21, a flexible spacer layer 22, a flexible display layer 23, a flexible touch layer 24, a polarizer 25, and a flexible protective layer 26. The flexible spacer layer 22 is disposed on the metal support layer 21. The flexible display layer 23 is disposed on the side of the flexible spacer layer 22 away from the metal support layer 21. The flexible touch layer 24 is disposed on the side of the flexible display layer 23 away from the flexible spacer layer 22. The flexible touch layer 25 is disposed on the side of the flexible touch layer 24 away from the flexible display layer 23. The flexible protective layer 26 is disposed on the side of the polarizer 25 away from the flexible touch layer 24.
[0086] In an exemplary embodiment, the flexible protective layer 26 is made of transparent polyimide resin.
[0087] In an exemplary embodiment, the thickness of the metal support layer 21 may be greater than or equal to 30 μm and less than or equal to 40 μm, but is not limited thereto.
[0088] A strip support layer (i.e., the support member 6) is provided on the side of the metal support layer 21 away from the flexible spacer layer 22, and the strip support layer and the metal support layer 21 are connected by an optical adhesive layer 62.
[0089] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.
Claims
1. A flexible display device, comprising a housing, a flexible display screen, a support member, and a sliding roller, wherein the support member is located between the flexible display screen and the sliding roller, and is used to drive the flexible display screen to be wound onto the sliding roller, and the sliding roller is rotatably disposed within the housing, wherein... It also includes a limiting structure disposed between the support member and the housing to maintain a gap between the flexible display screen and the housing. The limiting structure is formed by including at least one rigid track disposed on the side of the support member away from the flexible display screen, and the rigid track extends in a direction perpendicular to the axial direction of the sliding shaft. The limiting structure is formed to include a first magnetic structure and a second magnetic structure with the same magnetism, wherein the first magnetic structure is disposed on the side of the support member away from the flexible display screen, and the second magnetic structure is disposed on the housing.
2. The flexible display device according to claim 1, wherein, When the limiting structure forms at least one rigid track disposed on the side of the support member away from the flexible display screen, the rigid track is wound around the sliding shaft in a U-shape, and the opposite ends of the rigid track are fixed to the housing.
3. The flexible display device according to claim 2, wherein, Along the winding direction of the flexible display screen, the flexible display screen includes a first end located near the sliding shaft. When the flexible display screen is in the winding state, the orthographic projection of the first end on the rigid track is located on the rigid track.
4. The flexible display device according to claim 2, wherein, At least one of the rigid tracks is spaced apart in the middle region of the flexible display screen in a direction parallel to the axial direction of the sliding roller.
5. The flexible display device according to claim 2, wherein, Along the extension direction of the rigid track, the support member is provided with a plurality of connecting structures for connecting the rigid track at intervals.
6. The flexible display device according to claim 5, wherein, The connection structure includes two L-shaped connectors arranged opposite each other in a first direction. Each L-shaped connector includes a first connecting rod connected to the support and a second connecting rod perpendicularly connected to the first connecting rod. The first direction is parallel to the axial direction of the sliding shaft. The extension direction of the first connecting rod is perpendicular to the display surface of the flexible display screen, and the extension direction of the second connecting rod is parallel to the axial direction of the sliding shaft. The rigid track has an I-shaped cross-section on the display surface perpendicular to the flexible display screen. The rigid track includes a first connecting plate, a second connecting plate, and a support plate connected between the first connecting plate and the second connecting plate. The first connecting plate is inserted between the two L-shaped connectors.
7. The flexible display device according to claim 5, wherein, The connection structure includes an inverted T-shaped structure formed by connecting a third connecting rod and a fourth connecting rod. One end of the third connecting rod is connected to the support member, and the other end of the third connecting rod is connected to the middle of the fourth connecting rod. The extension direction of the third connecting rod is perpendicular to the display surface of the flexible display screen, and the extension direction of the fourth connecting rod is parallel to the extension direction of the sliding shaft. The rigid track is provided with a strip-shaped groove extending along the extension direction of the rigid track. The opening of the strip-shaped groove is opened on the connecting surface of the rigid track near the support member. The opening is a strip-shaped opening extending along the extension direction of the rigid track and penetrating the rigid track. The width of the opening in the direction perpendicular to the extension direction of the rigid track is less than the length of the fourth connecting rod.
8. The flexible display device according to claim 5, wherein, The connection structure includes two parallel fifth connecting rods arranged opposite to each other. The fifth connecting rods are perpendicular to the display surface of the flexible display screen, and a rotatable connecting shaft is connected between the two fifth connecting rods. The rigid track passes between the connecting shaft and the support member.
9. The flexible display device according to claim 5, wherein, The support member includes a plurality of spaced-apart support bars in a direction perpendicular to the axial direction of the slide shaft. The extension direction of the support bars is parallel to the axial direction of the slide shaft, and at least a portion of the support bars are provided with the connecting structure.
10. The flexible display device according to claim 9, wherein, The connecting structure and the support strip are an integral structure.
11. The flexible display device according to claim 9, wherein, The outer circumferential surface of the sliding roller is provided with a strip-shaped groove that cooperates with the support bar. Each strip-shaped groove is provided with at least one notch that corresponds one-to-one with the rigid rail to accommodate the rigid rail.
12. The flexible display device according to claim 9, wherein, The support member is connected to the flexible display screen via an optical adhesive layer.
13. The flexible display device according to claim 1, wherein, when the limiting structure is formed to include a first magnetic structure and a second magnetic structure with the same magnetism, The support component is reused as the first magnetic structure.
14. The flexible display device according to claim 1, wherein, The flexible display screen includes a display area and a non-display area. The non-display area is wound around the sliding shaft. The display area can be extended and retracted under the drive of the sliding shaft. The side of the support member away from the flexible display screen includes a first area corresponding to the display area. A support portion is provided on the first area. A third magnetic structure with the opposite magnetic properties to the first magnetic structure is provided on the support portion.
15. A display terminal, wherein, Includes the flexible display device according to any one of claims 1-14.