Display device

Abstract

A display device comprises a sliding and rolling structure, the sliding and rolling structure comprises a fixed structure and at least one movable structure, and the movable structure is connected with the fixed structure in a sliding mode; the flexible display panel is located on one side of the sliding and rolling structure; the system mainboard is located on the side, away from the flexible display panel, of the fixing structure; the flexible circuit board is located on the side, away from the flexible display panel, of the fixing structure; the flexible circuit board comprises a main body part and a flexible connecting part, the main body part is bound with one end of the flexible display panel, and the flexible connecting part is connected between the main body part and the system mainboard; in the extending direction of the flexible connecting part, the flexible connecting part is sequentially divided into a first part, a second part and a third part, the first part is connected with the main body part, the second part is movably arranged along the surface of the movable structure, and the third part is fixed to the face, away from the flexible display panel, of the fixed structure and is bound to the system mainboard.

Description

Technical Field

[0001] The utility model relates to the field of display technology, in particular to a display device. Background Art

[0002] The flexible display screen is bendable. The realization of the bendability of the flexible display screen requires not only a related bending mechanism, but also a flexible circuit board in the flexible display screen that connects the flexible display panel and the system main board.

[0003] In a flexible display device capable of sliding to expand a display area, the minimum length of the flexible circuit board affects the unfolded length of the entire flexible display screen. During the tightening of the flexible display screen, there are redundant flexible circuit boards that need to be accommodated.

[0004] However, conventional open storage solutions often have the problem of insufficient space for storing flexible circuit boards. Of course, this problem can be solved by increasing the space for storing flexible circuit boards, but this will increase the thickness of the flexible display screen.

[0005] In view of this, how to reduce the risk of damage to the flexible circuit board without increasing the thickness of the flexible display screen has become a technical problem that needs to be solved urgently. Utility Model Content

[0006] The embodiment of the utility model provides a display device to solve the technical problem in the prior art that the risk of damage to a flexible circuit board cannot be reduced without increasing the thickness of the flexible display screen.

[0007] In a first aspect, in order to solve the above technical problems, an embodiment of the utility model provides a display device, comprising:

[0008] A sliding structure, the sliding structure comprising a fixed structure and at least one movable structure, the movable structure being slidably connected to the fixed structure;

[0009] A flexible display panel, located on one side of the sliding structure;

[0010] A system mainboard, located on a side of the fixed structure away from the flexible display panel;

[0011] A flexible circuit board is located on a side of the fixed structure away from the flexible display panel; the flexible circuit board includes a main body and a flexible connection part, the main body is bound to one end of the flexible display panel, and the flexible connection part is connected between the main body and the system mainboard; in the extension direction of the flexible connection part, the flexible connection part is divided into a first part, a second part and a third part in sequence, the first part is connected to the main body, the second part is movably arranged along the surface of the movable structure, and the third part is fixed to a side of the fixed structure away from the flexible display panel and is bound to the system mainboard.

[0012] In a possible implementation manner, the movable structure further includes a rotation axis, and the rotation axis is located at one end of the movable structure close to the center line of the fixed structure;

[0013] When the sliding structure is in a tightened state, the second part is retracted from a side of the movable structure away from the fixed structure to a side of the movable structure close to the fixed structure via the rotating shaft;

[0014] When the sliding structure is in an unfolded state, the second part is located on a side of the movable structure away from the fixed structure, and is connected to the third part via the rotating shaft.

[0015] In a possible implementation manner, there is a gap between the movable structure and the fixed structure in the thickness direction of the sliding structure.

[0016] In a possible implementation manner, the gap is greater than twice the maximum thickness of the flexible connecting portion.

[0017] In a possible implementation manner, when the sliding structure is in the tightened state, the length of a portion of the second portion located on a side of the active structure close to the flexible display panel is greater than a sliding distance of the active structure.

[0018] In a possible implementation manner, the length of the second portion is twice the sliding distance of the movable structure.

[0019] In a possible implementation manner, one end of the first part close to the main body further has a reinforcement strip;

[0020] The two ends of the reinforcing strip are provided with positioning holes and screws; the screws lock and fix the first part and the flexible display panel through the positioning holes.

[0021] In a possible implementation manner, the metal layer laid on a side of the second part close to the movable structure has a hollow pattern.

[0022] In a possible implementation manner, a surface of the second part close to the movable structure is provided with an anti-wear material.

[0023] In a possible implementation manner, if the positions where the main body, the movable structure, and the third portion are bound to the system mainboard are not on the same straight line, the flexible connection portion is a broken line. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a structural schematic diagram of a scroll display device in an unfolded state;

[0025] Figure 2 It is a structural schematic diagram of the sliding display device in a tightened state;

[0026] Figure 3 A schematic diagram of the structure of a display device provided by an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the structure of the display device provided by an embodiment of the utility model in a tightened state;

[0028] Figure 5 A schematic diagram of the structure of another display device provided by an embodiment of the utility model;

[0029] Figure 6 A schematic diagram of the structure of another display device in a tightened state provided by an embodiment of the utility model;

[0030] Figure 7 and Figure 8 A schematic diagram of the structure of another display device provided by an embodiment of the utility model;

[0031] Fig. 9 A diagram showing the relative position relationship between the tail end of a flexible display panel and an active structure provided in an embodiment of the utility model;

[0032] Fig.10 A schematic diagram of the structure of a flexible circuit board provided in an embodiment of the utility model;

[0033] Fig.11 A schematic diagram of the structure of another flexible circuit board provided in an embodiment of the utility model;

[0034] Figure 12-13 A schematic structural diagram of another display device provided in an embodiment of the utility model.

[0035] Reference numerals:

[0036] Sliding structure 1, fixed structure 11, movable structure 12, flexible display panel 2, system mainboard 3, flexible circuit board 4, main body 41, flexible connecting part 42, first part 421, second part 422, third part 423, rotating shaft 121, reinforcement strip 4211. DETAILED DESCRIPTION

[0037] The embodiment of the utility model provides a display device to solve the technical problem in the prior art that the risk of damage to a flexible circuit board cannot be reduced without increasing the thickness of the flexible display screen.

[0038] It should be understood that the specific structural and functional details disclosed in the embodiments of the present invention are merely representative and are for the purpose of describing exemplary embodiments of the present invention. However, the present invention can be specifically implemented in many alternative forms and should not be interpreted as being limited to the embodiments described herein.

[0039] In the description of the present utility model, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The terms used in the present invention are only for describing specific embodiments and are not intended to limit exemplary embodiments. Unless the context clearly indicates otherwise, the singular forms "one", "one" and "item" used herein are also intended to include the plural. It should also be understood that the terms "include" and / or "comprise" used herein specify the existence of stated features, integers, steps, operations, units and / or components, without excluding the existence or addition of one or more other features, integers, steps, operations, units, components and / or combinations thereof.

[0042] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in conjunction with the drawings and examples below. However, the example embodiments can be implemented in various forms and should not be understood as being limited to the embodiments described herein; on the contrary, these embodiments are provided to make the utility model more comprehensive and complete, and to fully convey the concepts of the example embodiments to those skilled in the art. The same figure marks in the figures represent the same or similar structures, and their repeated descriptions will be omitted. The words expressing position and direction described in the utility model are all explained with the drawings as examples, but changes can be made as needed, and the changes made are all included in the scope of protection of the utility model. The drawings of the utility model are only used to illustrate the relative position relationship and do not represent the true proportion.

[0043] It should be noted that specific details are described in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in a variety of other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below. The subsequent description of the specification is a preferred implementation method for implementing the present invention, but the description is for the purpose of illustrating the general principles of the present invention and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the definition of the attached claims.

[0044] See also Figure 1 The structure diagram of the scrolling display device in the unfolded state. The scrolling display device includes:

[0045] The sliding structure 1 includes a fixed structure 11 and a movable structure 12, and the fixed structure 11 is slidably connected with the movable structure 12;

[0046] The flexible display panel ( Figure 1 not shown);

[0047] The system mainboard 3 is located on a side of the fixed structure 11 away from the flexible display panel;

[0048] The flexible circuit board 4 is located on the side of the sliding structure 1 away from the flexible display panel, and the flexible circuit board 4 is connected between the flexible display panel 2 and the system main board 3. The flexible circuit board 4 includes a main body 41 and a flexible connection part 42, the main body 41 is bound to one end of the flexible display panel, and the flexible connection part 42 is connected between the main body 41 and the system main board 3.

[0049] like Figure 1 As shown, when the sliding display device is in the unfolded state, the flexible connection portion 42 is also fully unfolded to form a straight line.

[0050] See also Figure 2 It is a structural schematic diagram of the sliding display device in a tightened state.

[0051] The inventor of the utility model discovered that after the rolling display device is tightened, the flexible connection part 42 will be stored in the space position of the fixed structure 11. If the space at the corresponding position of the fixed structure 11 is not enough to accommodate the flexible connection part 42, there will be problems such as the flexible connection part 42 being wrinkled and damaged, squeezed and running around. If a large amount of space is freed up to place the flexible connection part 42, there is a risk of low space utilization of the rolling display device and increased thickness of the entire device.

[0052] In order to solve the above problems, an embodiment of the present utility model provides a display device, which will be described in detail below with reference to the accompanying drawings.

[0053] See also Figure 3 A schematic diagram of a display device provided in an embodiment of the present utility model, the display device comprising:

[0054] The sliding structure 1 includes a fixed structure 11 and at least one movable structure 12, and the movable structure 12 is slidably connected to the fixed structure 11;

[0055] The flexible display panel 2 is located on one side of the sliding structure 1;

[0056] The system mainboard 3 is located on a side of the fixed structure 11 away from the flexible display panel 2;

[0057] The flexible circuit board 4 is located on a side of the fixed structure 11 away from the flexible display panel 2; the flexible circuit board 4 includes a main body 41 and a flexible connection part 42, the main body 41 is bound to one end of the flexible display panel 2, and the positions of the main body 41 and the flexible display panel 2 are relatively fixed, and the flexible connection part 42 is connected between the main body 41 and the system motherboard 3; in the extension direction X of the flexible connection part 42, the flexible connection part 42 is divided into a first part 421, a second part 422 and a third part 423 in sequence, the first part 421 is connected to the main body 41, the second part 422 is movably arranged along the surface of the movable structure 12, and the third part 423 is fixed to a side of the fixed structure 11 away from the flexible display panel 2, and is bound to the system motherboard 3.

[0058] The extending direction X of the flexible connection portion 42 is the same as the sliding direction of the movable structure 12 .

[0059] like Figure 3 As shown, since the third part 423 of the flexible connection part 42 is fixed to the side of the fixed structure 11 away from the flexible display panel 2, the first part 421 of the flexible connection part 42 is bound to the main body 41, and the second part 422 of the flexible connection part 42 is movably arranged along the surface of the movable structure 12, the second part 422 of the flexible connection part 42 is unfolded along the side of the movable structure 12 away from the flexible display panel 2 when the sliding structure 1 is in the unfolded state.

[0060] See also Figure 4 This is a schematic structural diagram of a display device provided by an embodiment of the utility model in a tightened state. Figure 4 for Figure 3 Schematic diagram of the corresponding display device in the tightened state, since the third part 423 of the flexible connection part 42 is fixed to the side of the fixed structure 11 away from the flexible display panel 2, the position of the end of the third part 423 of the flexible connection part 42 connected to the second part 422 is fixed, and the first part 421 of the flexible connection part 42 is connected to the main body 41, and the main body 41 is bound to one end of the flexible display panel 2, and the second part 422 of the flexible connection part 42 is movably arranged along the surface of the movable structure 12. When the sliding device is changed from the unfolded state to the tightened state, the second part 422 of the flexible connection part 42 As the active structure 12 is tightened, it gradually shifts from the side of the active structure 12 away from the flexible display panel 2 to the side of the active structure 12 close to the flexible display panel 2, until the sliding structure 1 is in a tightened state, the fixed structure 11 and the active structure 12 form a box-like structure, a part of the second part 422 of the flexible connection part 42 is located on the side of the active structure 12 away from the flexible display panel 2, and the other part is located on the side of the active structure 12 close to the flexible display panel 2, thereby a part of the second part 422 of the flexible connection part 42 is stored in the space between the active structure 12 and the fixed structure 11.

[0061] The display device may be Figure 3 and Figure 4 The one-sided sliding roll shown can also be Figure 5 and Figure 6 The double-sided scroll shown in the figure shows that the display device includes two movable devices. Figure 5 A schematic diagram of the structure of another display device provided by an embodiment of the utility model, Figure 6 A schematic diagram of the structure of another display device in a tightened state provided by an embodiment of the utility model, Figure 6 for Figure 5 The corresponding schematic diagram shows the device in a tightened state. Figure 5There is only one flexible circuit board 4 bound to the flexible display panel 2, so Figure 5 The flexible circuit board 4 is bound to one end of the flexible display panel 2.

[0062] If the display area of ​​the flexible display panel 2 is too long after it is unfolded and needs to be spliced ​​with two panels, two flexible circuit boards 4 can be configured for the flexible display panel 2 and bound to the two ends of the flexible display panel 2 respectively. Each flexible circuit board 4 corresponds to an active structure 12. The setting methods of the flexible connecting parts 42 in the two flexible circuit boards 4 and the active structure 12 can refer to Figure 5 and Figure 6 The configuration of the middle flexible connection portion 42 is the same and will not be described in detail here.

[0063] Please continue to see Figure 6 , the movable structure 12 is close to the fixed structure 11 and one end in contact with the second portion 422 ( Figure 6 The portion indicated by the dotted line in the middle circle is arc-shaped, which can prevent the flexible connecting portion 42 from being damaged during the tightening process.

[0064] It should be noted that when describing the relative position relationship between the flexible display panel 2 and other structures in the present invention, it refers to the relative position relationship between the display surface of the flexible display panel 2 and other structures. For example, when the active structure 12 is located on the side of the fixed structure 11 away from the flexible display panel 2, it means that the active structure 12 is located on the side of the fixed structure 11 away from the display surface of the flexible display panel 2.

[0065] In the embodiment provided by the utility model, in the extension direction of the flexible connection part 42, the flexible connection part 42 is divided into a first part 421, a second part 422 and a third part 423 in sequence, and the first part 421 is bound to the main body 41, the second part 422 is movably arranged along the surface of the active structure 12 in the sliding structure 1, and the third part 423 is fixed to a side of the fixed structure 11 in the sliding structure 1 away from the flexible display panel 2, and is bound to the system mainboard 3, so that when the sliding structure 1 is in the unfolded state, the second part 422 of the flexible connection part 42 is unfolded on the active structure 1 2 is on the side away from the flexible display panel 2; when the sliding structure 1 is in the tightened state, a part of the second part 422 is arranged on the side of the active structure 12 away from the flexible display panel 2, and the other part is arranged on the side of the active structure 12 close to the flexible display panel 2, so that when the display device is in the tightened state, the flexible connection part 42 is prevented from being accumulated between the fixed structure 11 and the active structure 12 to cause wrinkle damage, squeezing and running around, and at the same time, there is no need to increase the space between the fixed structure 11 and the active structure 12, and finally the risk of damage to the flexible connection part 42 is reduced without increasing the thickness of the flexible display screen.

[0066] See also Figure 7and Figure 8 The schematic diagram of another display device provided by the embodiment of the utility model. The movable structure 12 further includes a rotating shaft 121, and the rotating shaft 121 is located at one end of the movable structure 12 close to the center line OO' of the fixed structure 11;

[0067] When the sliding structure 1 is in a tightened state, the second portion 422 is retracted from a side of the movable structure 12 away from the fixed structure 11 to a side of the movable structure 12 close to the fixed structure 11 via the rotating shaft 121;

[0068] When the sliding structure 1 is in the unfolded state, the second portion 422 is located on a side of the movable structure 12 away from the fixed structure 11 , and is connected to the third portion 423 via the rotating shaft 121 .

[0069] The above-mentioned rotating shaft 121 can be a rotating shaft 121 that drives the active structure 12 to slide, so that when the rotating shaft 121 rotates, it can synchronously drive a part of the second part 422 of the flexible connection part 42 to move toward the side of the active structure 12 close to the flexible display panel 2, so that a part of the second part 422 of the flexible connection part 42 is located on the side of the active structure 12 close to the flexible display panel 2.

[0070] Please continue to see Figure 8 In the thickness direction of the sliding structure 1, there is a gap d between the movable structure 12 and the fixed structure 11. The gap d is greater than twice the maximum thickness d' of the flexible connection part 42. This ensures that when the flexible connection part 42 is stored, the second part 422 and the third part 423 will not be squeezed against each other.

[0071] Please continue to see Figure 7 , the length L of the second portion 422 is twice the sliding distance Δ of the movable structure 12 .

[0072] See also Fig. 9 The figure is a relative position relationship diagram of the tail end of a flexible display panel and an active structure provided in an embodiment of the utility model. When the rolling structure 1 changes from the tightened state to the unfolded state, the active structure 12 slides a distance Δ, and the tail end (i.e., the binding end) of the flexible display panel 2 moves a distance Δ', which is exactly twice the sliding distance Δ of the active structure 12. Figure 7 The length L of the second part 422 of the flexible connection part 42 shown in the figure is set to twice the sliding distance Δ of the movable structure 12, so that the travel of the flexible connection part 42 will not be insufficient or too long, thereby ensuring that the flexible connection part 42 will not be wrinkled at any sliding position, and the entire flexible connection part 42 will not be pulled or difficult to accommodate.

[0073] In the embodiment provided by the utility model, by setting the length L of the second part 422 of the flexible display panel 2 to twice the sliding distance Δ of the active structure 12, it can be ensured that the entire flexible connection part 42 will not be pulled or difficult to accommodate, so that the stroke of the entire flexible connection part 42 is maintained at a constant value, and the flexible connection part 42 is kept in a healthy state in both the unfolded state and the retracted state of the sliding structure 1, so that the flexible connection part 42 can achieve a stable working effect.

[0074] Please continue to see Figure 8 When the sliding structure 1 is in a tightened state, the length L′ of the second portion 422 located on the side of the active structure 12 close to the flexible display panel 2 is greater than the sliding distance Δ of the active structure 12 .

[0075] In the embodiment provided by the utility model, by setting the length L' of the part of the second part 422 located on the side of the active structure 12 close to the flexible display panel 2 to be greater than the sliding distance Δ of the active structure 12, most of the second part 422 can be stored on the side of the active structure 12 close to the flexible display panel 2, and it can be ensured that during the unfolding process of the active structure 12, the second part 422 located on the side of the active structure 12 close to the flexible display panel 2 is moved up to the side of the active structure 12 away from the flexible display panel 2 through the rotating shaft 121.

[0076] It should be noted that in Figure 3-Figure 9 The side of the middle movable structure 12 close to the flexible display panel 2 has a plane supporting the flexible display panel 2 , which cannot be understood as having no support for the flexible display panel 2 .

[0077] See also Fig.10 A schematic structural diagram of a flexible circuit board provided in an embodiment of the utility model.

[0078] If the binding positions of the main body 41, the active structure 12 and the third part 423 and the system mainboard 3 are in the same straight line, the flexible connection part 42 is Fig.10 The rectangle shown.

[0079] Please refer to Fig.11 A schematic diagram of the structure of another flexible circuit board provided in an embodiment of the utility model.

[0080] If the binding positions of the main body 41, the active structure 12 and the third part 423 and the system mainboard 3 are not in the same straight line, the flexible connection part 42 is Fig.11 In this way, the flexible connection part 42 can be easily bound to the flexible display panel 2 and the system mainboard 3, and the second part 422 can be easily stored. In some embodiments, the second part 422 in the flexible connection part 42 is rectangular, which can prevent the second part 422 from wrinkling in a direction perpendicular to the extension direction of the second part 422.

[0081] Please continue to see Fig.10 , one end of the first part 421 close to the main body 41 also has a reinforcement strip 4211;

[0082] Both ends of the reinforcing strip 4211 are provided with positioning holes H and screws (not shown); the screws pass through the positioning holes to lock and fix the first portion 421 and the flexible display panel 2 .

[0083] In the embodiment provided by the utility model, by providing a reinforcement strip 4211 on the first part 421 of the flexible connection part 42, and providing positioning holes H and screws at both ends of the reinforcement strip 4211, the screws are used to lock and fix the first part 421 to the flexible display panel 2 through the positioning holes H, thereby improving the stability of the connection between the flexible circuit board 4 and the flexible display panel 2.

[0084] See also Figure 12-13 A schematic diagram of the structure of another display device provided by an embodiment of the utility model, Fig.12 To adopt Fig.10 The flexible connection portion 42 in the figure corresponds to a schematic diagram of the display device in a tightened state, Fig.13 To adopt Fig.10 The flexible connection portion 42 corresponds to a schematic diagram of the display device in an unfolded state.

[0085] In some embodiments, the metal layer laid on one side of the second portion 422 close to the movable structure 12 is a hollow pattern, and the material used for the metal layer may be copper.

[0086] In the embodiment provided by the utility model, by setting the metal layer laid on the side of the second part 422 of the flexible connection part 42 away from the movable structure 12 as a hollow pattern, the second part 422 can be prevented from damaging the rotating shaft 121 when contacting the rotating shaft 121.

[0087] In other embodiments, an anti-wear material, such as green oil, may be provided on a surface of the second portion 422 close to the movable structure 12 , which can also prevent the second portion 422 from damaging the rotating shaft 121 when in contact with the rotating shaft 121 .

[0088] The display device may be an electroluminescent display, an electroluminescent display screen, an electroluminescent television or other display device, or may be a mobile device such as a mobile phone, a tablet computer, or a notebook.

[0089] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0090] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A display device, wherein: include: A sliding structure, the sliding structure comprising a fixed structure and at least one movable structure, the movable structure being slidably connected to the fixed structure; A flexible display panel, located on one side of the sliding structure; A system mainboard, located on a side of the fixed structure away from the flexible display panel; A flexible circuit board is located on a side of the fixed structure away from the flexible display panel; the flexible circuit board includes a main body and a flexible connection part, the main body is bound to one end of the flexible display panel, and the flexible connection part is connected between the main body and the system mainboard; in the extension direction of the flexible connection part, the flexible connection part is divided into a first part, a second part and a third part in sequence, the first part is connected to the main body, the second part is movably arranged along the surface of the movable structure, and the third part is fixed to a side of the fixed structure away from the flexible display panel and is bound to the system mainboard.

2. The display device according to claim 1, wherein: The movable structure further comprises a rotating shaft, and the rotating shaft is located at one end of the movable structure close to the center line of the fixed structure; When the sliding structure is in a tightened state, the second part is retracted from a side of the movable structure away from the fixed structure to a side of the movable structure close to the fixed structure via the rotating shaft; When the sliding structure is in an unfolded state, the second part is located on a side of the movable structure away from the fixed structure, and is connected to the third part via the rotating shaft.

3. The display device according to claim 2, wherein: In the thickness direction of the sliding structure, there is a gap between the movable structure and the fixed structure.

4. The display device according to claim 3, wherein: The gap is greater than twice the maximum thickness of the flexible circuit board.

5. The display device according to claim 2, wherein: When the sliding structure is in the tightened state, the length of a portion of the second portion located on a side of the active structure close to the flexible display panel is greater than a sliding distance of the active structure.

6. The display device according to any one of claims 1 to 5, wherein: The length of the second portion is twice the sliding distance of the movable structure.

7. The display device according to any one of claims 1 to 5, wherein: The first part also has a reinforcement strip at one end close to the main body; The two ends of the reinforcing strip are provided with positioning holes and screws; the screws lock and fix the first part and the flexible display panel through the positioning holes.

8. The display device according to any one of claims 1 to 5, wherein: The metal layer laid on a side of the second part close to the movable structure has a hollow pattern.

9. The display device according to any one of claims 1 to 5, wherein: A side of the second part close to the movable structure is provided with anti-wear material.

10. The display device according to any one of claims 1 to 5, wherein: If the positions where the main body, the movable structure and the third part are bound to the system mainboard are not on the same straight line, the flexible connection portion is a broken line.

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