Flexible display device

Abstract

A flexible display device comprises: a housing, a flexible display module and a pressing component; the flexible display module is located in the housing, and the housing and the flexible display module are slidingly connected; the flexible display module comprises a head end and a tail end arranged opposite to each other; the flexible display module comprises an extended state and a retracted state, in which, in the extended state, the head end of the flexible display module extends out of the housing, and the tail end of the flexible display module is located in the housing; in the retracted state, the head end of the flexible display module is retracted into the housing, and part of the display side surface of the flexible display module is displayed; the pressing component is arranged at the tail end of the flexible display module, and is configured to provide a pressing force to the tail end of the flexible display module.

Description

Technical Field

[0001] This article relates to but is not limited to display technology, and in particular to a flexible display device. Background Art

[0002] With the continuous development of display technology, flexible display devices are becoming increasingly widely used. Flexible display modules are characterized by their lightness, thinness, and strong bending flexibility, expanding the structural form factors of terminal devices. Terminal devices now have foldable, roll-up, and curly structures. For roll-up displays, users can freely adjust the display area of ​​the roll-up flexible display module according to their needs, making it not only convenient for users to carry around but also providing a better user experience. Currently, roll-up devices have made breakthroughs in the development of shaft-type and track-type devices.

[0003] The inventors of the present application have discovered through research that, for a track-type sliding roll-up device, the flexible display module has a problem of bulging in the middle side of the screen when in the unfolded state. Summary of the Invention

[0004] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0005] The embodiments of the present disclosure provide a flexible display device to solve the problem of bulging of the middle side of the screen of a flexible display module of a track-type sliding and rolling device when the flexible display module is in an unfolded state.

[0006] On the one hand, an embodiment of the present disclosure provides a flexible display device, comprising: a casing, a flexible display module and a pressing component; the flexible display module is located in the casing, and the casing and the flexible display module are slidingly connected; the flexible display module includes a head end and a tail end arranged opposite to each other; the flexible display module includes an unfolded state and a retracted state, in the unfolded state, the head end of the flexible display module extends out of the casing, and the tail end of the flexible display module is located in the casing; in the retracted state, the head end of the flexible display module is retracted into the casing, and part of the display side surface of the flexible display module is displayed; the pressing component is arranged at the tail end of the flexible display module, and is configured to provide a pressing force to the tail end of the flexible display module.

[0007] In an exemplary embodiment, a track is provided inside the housing, the flexible display module is connected to a support member, and the support member is configured to slide on the track.

[0008] In an exemplary embodiment, the support member includes a tail side support member and a track support member; the tail end of the flexible display module is connected to the tail side support member, and both ends of the flexible display module adjacent to the tail end are connected to the track support member.

[0009] In an exemplary embodiment, the flexible display module includes a display side surface and a non-display side surface opposite to the display side surface; the tail side support is located on the non-display side of the flexible display module; the pressing component is connected to the tail side support, and the pressing component is located on the side of the tail side support away from the flexible display module.

[0010] In an exemplary embodiment, the pressing component includes a sliding plate and a pressing plate arranged in sequence along a direction facing the flexible display module, and at least one pressure providing member is arranged between the sliding plate and the pressing plate, and the pressure providing member is configured to provide the pressing force.

[0011] In an exemplary embodiment, in the extension direction along the tail end, the pressure providing member includes at least one first pressure providing member located in the middle of the tail end, and at least two second pressure providing members located on both sides of the middle of the tail end, and the tensioning force provided by the first pressure providing member is greater than or equal to the tensioning force provided by the second pressure providing member.

[0012] In an exemplary embodiment, a first pressing portion is provided on the surface of the sliding plate facing the flexible display module, a second pressing portion is provided on the surface of the pressing plate away from the flexible display module, and the pressure providing member is fixed between the first pressing portion and the second pressing portion.

[0013] In an exemplary embodiment, the pressing component further includes a flexible plate, and the flexible plate is located on a side of the pressing plate close to the flexible display module.

[0014] In an exemplary embodiment, a first connecting boss is provided on the surface of the tail side support member away from the flexible display module, and a sleeve is provided between the sliding plate and the pressure plate, and the surface of the sleeve away from the flexible display module is in contact with the surface of the sliding plate; the first connecting boss passes through the pressure plate and is connected to the sleeve.

[0015] In an exemplary embodiment, the flexible display device further includes a back panel fixedly connected to the housing; the flexible display device further includes a scissor mechanism; one end of the scissor mechanism is connected to the pressing component, and the other end of the scissor mechanism is connected to the back panel.

[0016] In an exemplary embodiment, one end of the scissor mechanism is connected between the first connecting boss and the sleeve; a second connecting boss is provided on the surface of the back panel facing the flexible display module, and the other end of the scissor mechanism is connected to the second connecting boss.

[0017] In an exemplary embodiment, a sliding bar is provided on the surface of the sliding plate away from the flexible display module, a sliding rail is provided on the surface of the back plate facing the flexible display module, and the sliding bar is configured to slide within the sliding rail.

[0018] In an exemplary embodiment, the scissor mechanism includes a first scissor mechanism and a second scissor mechanism symmetrically arranged along the middle portion of the tail end.

[0019] In an exemplary embodiment, the scissor-type mechanism includes a first short member, a second short member, a first long member, a second long member, a third short member, a fourth short member and a plurality of pins; wherein, the first short member, the first long member and the fourth short member are connected in sequence through the pins, and the second short member, the second long member and the third short member are connected in sequence through the pins; the other ends of the first short member and the second short member are connected to the second connecting boss, and the other ends of the third short member and the fourth short member are connected between the first connecting boss and the sleeve.

[0020] The flexible display device provided by the disclosed embodiments employs a compression component disposed at the rear end of the flexible display module. This component applies a compressive force to the rear end of the flexible display module, thereby balancing the rebound force exerted on the rear end of the flexible display module in the unfolded state. This prevents the center of the rear end of the flexible display module from arching, improving the flatness of the unfolded screen and reducing the risk of damage to the flexible display module. This solves the problem of the center of the flexible display module in track-type sliding and rolling devices arching when unfolded.

[0021] Other features and advantages of the present disclosure will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present disclosure. Other advantages of the present disclosure can be realized and obtained through the solutions described in the description and the drawings.

[0022] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation to the technical solution of the present disclosure.

[0024] Figure 1 is a schematic structural diagram of a flexible display device in an embodiment of the present disclosure;

[0025] Figure 2 is a schematic diagram of the exploded structure of the flexible display device after removing the housing in an exemplary embodiment;

[0026] Figure 3 is a front view of a pressing component in an exemplary embodiment;

[0027] Figure 4 for Figure 2 A schematic diagram of the flexible display device in a retracted state;

[0028] Figure 5 for Figure 2 A schematic diagram of a flexible display device in an unfolded state;

[0029] Figure 6 FIG. 1 is a schematic diagram of the backplane structure of a flexible display device in an exemplary embodiment.

[0030] Reference numerals:

[0031] 1-housing; 2-flexible display module; 3-scissor mechanism;

[0032] 4-back plate; 5-pressing component; 11-track support;

[0033] 12-tail support member; 31-first short member; 32-second short member;

[0034] 33-first long member; 34-second long member; 35-third short member;

[0035] 36 - fourth short member; 37 - pin; 41 - second connecting boss;

[0036] 42-slide rail; 51-spring; 52-sleeve;

[0037] 53-sliding plate; 54-pressing plate; 55-flexible plate;

[0038] 121 - first connecting boss; 531 - sliding bar; 532 - first pressing portion;

[0039] 533 - through hole; 541 - second pressing portion. DETAILED DESCRIPTION

[0040] The present disclosure describes a plurality of embodiments, but this description is exemplary rather than restrictive, and it will be apparent to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present disclosure. Although many possible feature combinations are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0041] The present disclosure includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features, and elements of the present disclosure may also be combined with any conventional features or elements to form a unique inventive solution defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other inventive solutions to form another unique inventive solution defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this disclosure may be implemented individually or in any appropriate combination. Therefore, the embodiments are not subject to other limitations except for the limitations set forth in the appended claims and their equivalents. In addition, various modifications and changes may be made within the scope of protection of the appended claims.

[0042] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps in the specific order described. As will be understood by those skilled in the art, other orders of steps are also possible. Therefore, the specific order of the steps set forth in the specification should not be interpreted as a limitation on the claims. In addition, the claims to the method and / or process should not be limited to performing their steps in the order written, and those skilled in the art can readily understand that these orders can be changed and still remain within the spirit and scope of the disclosed embodiments.

[0043] In the drawings, the size of one or more components, layer thicknesses, or regions may be exaggerated for clarity. Therefore, one embodiment of the present disclosure is not necessarily limited to these dimensions, and the shapes and sizes of one or more components in the drawings do not reflect true proportions. Furthermore, the drawings schematically illustrate idealized examples, and one embodiment of the present disclosure is not limited to the shapes or values ​​shown in the drawings.

[0044] In this specification, ordinal numbers such as "first," "second," and "third" are provided to avoid confusion among constituent elements, and are not intended to limit the number. In this disclosure, "plurality" means two or more.

[0045] In this specification, for convenience, words and phrases indicating orientation or positional relationships, such as "middle," "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," and "outside," are used to illustrate the positional relationships of constituent elements with reference to the accompanying drawings. This is merely for the purpose of facilitating the description of this specification and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. The positional relationships of constituent elements may be appropriately changed depending on the orientation of the constituent elements being described. Therefore, the present disclosure is not limited to the words and phrases described in the specification and may be appropriately replaced depending on the circumstances.

[0046] In this specification, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, indirect connections through intermediaries, or internal communication between two components. Those skilled in the art will understand the meaning of these terms in this disclosure based on the specific circumstances.

[0047] In this specification, "electrically connected" includes components connected together via an element having some electrical function. There are no particular limitations on the "element having some electrical function" as long as it enables transmission of electrical signals between the connected components. Examples of "element having some electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other components with various functions.

[0048] In this specification, "parallel" refers to a state where the angle formed by two straight lines is greater than -10° and less than 10°, and thus also includes a state where the angle is greater than -5° and less than 5°. Furthermore, "perpendicular" refers to a state where the angle formed by two straight lines is greater than 80° and less than 100°, and thus also includes a state where the angle is greater than 85° and less than 95°.

[0049] An embodiment of the present disclosure provides a flexible display device, comprising: a casing, a flexible display module, and a pressing component; the flexible display module is located inside the casing, and the casing and the flexible display module are slidingly connected; the flexible display module comprises a head end and a tail end that are relatively arranged; the flexible display module comprises an unfolded state and a retracted state, in the unfolded state, the head end of the flexible display module extends out of the casing, and the tail end of the flexible display module is located inside the casing; in the retracted state, the head end of the flexible display module is retracted into the casing, and part of the display side surface of the flexible display module is displayed; the pressing component is arranged at the tail end of the flexible display module, and is configured to provide a pressing force to the tail end of the flexible display module.

[0050] After research, the inventors of this application discovered that the problem of the middle side of the flexible display module bulging when in the unfolded state in current track-type sliding and rolling devices is due to the increased rebound force applied to the rear end of the flexible display module in the unfolded state. This screen bulging phenomenon can easily lead to damage to the flexible display module. The flexible display device provided in the disclosed embodiments provides a clamping component at the rear end of the flexible display module, which provides a clamping force to the rear end of the flexible display module. This balances the rebound force applied to the rear end of the flexible display module in the unfolded state, preventing the middle side of the rear end of the flexible display module from bulging. The unfolded screen is more flat, reducing the risk of damage to the flexible display module.

[0051] The flexible display device in the embodiment of the present disclosure may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, or a navigator.

[0052] In an exemplary embodiment, a track is provided inside the housing, the flexible display module is connected to a support member, and the support member is configured to slide on the track.

[0053] In other embodiments, the housing and the flexible display module may be slidably connected in other ways, which is not limited in the present disclosure.

[0054] In an exemplary embodiment, the support member includes a tail side support member and a track support member; the tail end of the flexible display module is connected to the tail side support member, and both ends of the flexible display module adjacent to the tail end are connected to the track support member.

[0055] In an exemplary embodiment, the flexible display module includes a display side surface and a non-display side surface opposite to the display side surface; the tail side support is located on the non-display side of the flexible display module; the pressing component is connected to the tail side support, and the pressing component is located on the side of the tail side support away from the flexible display module.

[0056] In an exemplary embodiment, the pressing component includes a sliding plate and a pressing plate arranged in sequence along a direction facing the flexible display module, and at least one pressure providing member is arranged between the sliding plate and the pressing plate, and the pressure providing member is configured to provide the pressing force.

[0057] In an exemplary embodiment, in the extension direction along the tail end, the pressure providing member includes at least one first pressure providing member located in the middle of the tail end, and at least two second pressure providing members located on both sides of the middle of the tail end, and the tensioning force provided by the first pressure providing member is greater than or equal to the tensioning force provided by the second pressure providing member.

[0058] In an exemplary embodiment, the pressure providing member may be an elastic member, a hydraulic component, etc., which is not limited in the present disclosure. In an exemplary embodiment, the pressure providing member may be a spring.

[0059] In an exemplary embodiment, a first pressing portion is provided on the surface of the sliding plate facing the flexible display module, a second pressing portion is provided on the surface of the pressing plate away from the flexible display module, and the pressure providing member is fixed between the first pressing portion and the second pressing portion.

[0060] In an exemplary embodiment, the pressing component further includes a flexible plate, and the flexible plate is located on a side of the pressing plate close to the flexible display module.

[0061] In an exemplary embodiment, the flexible board may be in contact with the flexible display module and may be made of a material having a certain elasticity to avoid damaging the flexible display module.

[0062] In an exemplary embodiment, a first connecting boss is provided on the surface of the tail side support member away from the flexible display module, and a sleeve is provided between the sliding plate and the pressure plate, and the surface of the sleeve away from the flexible display module is in contact with the surface of the sliding plate; the first connecting boss passes through the pressure plate and is connected to the sleeve.

[0063] In one exemplary embodiment, the flexible display device further includes a backplate fixedly connected to the housing; the flexible display device further includes a scissor mechanism; one end of the scissor mechanism is connected to the pressing component, and the other end of the scissor mechanism is connected to the backplate. In one exemplary embodiment, one end of the scissor mechanism is connected between the first connecting boss and the sleeve; a second connecting boss is provided on the surface of the backplate facing the flexible display module, and the other end of the scissor mechanism is connected to the second connecting boss.

[0064] In an exemplary embodiment, one end of the scissor mechanism moves with the movement of the clamping component, while the other end is fixed to the backplate. Because one end of the scissor mechanism is connected between the first connecting boss and the sleeve, it can drive the clamping component to move only within a plane parallel to the display-side surface of the flexible display module during movement, preventing the clamping component from moving in other directions and damaging the flexible display module. This not only improves the safety of the movement process, but also makes the entire movement process smoother, enhancing the user experience.

[0065] In an exemplary embodiment, a sliding bar is provided on the surface of the sliding plate away from the flexible display module, a sliding rail is provided on the surface of the back plate facing the flexible display module, and the sliding bar is configured to slide within the sliding rail.

[0066] In an exemplary embodiment, the scissor mechanism includes a first scissor mechanism and a second scissor mechanism symmetrically arranged along the middle portion of the tail end.

[0067] In an exemplary embodiment, the scissor-type mechanism includes a first short member, a second short member, a first long member, a second long member, a third short member, a fourth short member and a plurality of pins; wherein, the first short member, the first long member and the fourth short member are connected in sequence through the pins, and the second short member, the second long member and the third short member are connected in sequence through the pins; the other ends of the first short member and the second short member are connected to the second connecting boss, and the other ends of the third short member and the fourth short member are connected between the first connecting boss and the sleeve.

[0068] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0069] Figure 1 Schematic diagram of the structure of the flexible display device in an embodiment of the present disclosure. Figure 2 FIG. 1 is a schematic diagram of the exploded structure of the flexible display device after removing the housing in an exemplary embodiment. Figure 1 and Figure 2 As shown, an embodiment of the present disclosure provides a flexible display device, including: a housing 1, a flexible display module 2, a scissor mechanism 3, a back panel 4 and a pressing component 5. The flexible display module 2 includes a flexible screen, and one side of the flexible display module 2 is a display side surface, which can support the flexible display device to realize functions such as picture display and user interaction. The opposite side surface of the flexible display module 2 is a non-display side surface. The flexible display module 2 is arranged in the housing 1 and is slidably connected to the housing 1. The housing 1 can be arranged around the display side surface of the flexible display module 2. The flexible display module 2 can slide in the housing 1 under the drive of a motor or other device to realize the switching of the flexible display module 2 between the expanded state and the retracted state, thereby changing the screen display area of ​​the flexible display device. The back panel 4 can be fixedly connected to the housing 1, and the back panel 4 can block the non-display side of the flexible display device. As shown Figure 2As shown, the side surface of the flexible display module 2 inside the housing 1 can be in a "U" shape. In the expanded state of the flexible display module 2, the head end of the flexible display module 2 (i.e., one end of the "U" shape) extends to the outside of the housing 1 for display, and the tail end of the flexible display module 2 (i.e., the other end of the "U" shape) remains in the housing 1, and the tail end of the flexible display module 2 does not display the picture. The clamping component 5 can be set on the non-display side of the flexible display module 2. The clamping component 5 is set to provide a clamping force to the tail end of the flexible display module 2 to ensure the force balance of the tail end of the flexible display module 2, which can avoid the arching of the middle side of the flexible display module 2. The scissor mechanism 3 can be connected to the clamping component 5. When the flexible display module 2 switches between the expanded state and the retracted state, the scissor mechanism 3 can limit the movement of the clamping component 5, so that the movement of the clamping component 5 is smoother, which can improve the stability of the clamping force on the tail end of the flexible display module 2, and make the display state switching process of the flexible display module 2 smoother.

[0070] In an exemplary embodiment, the flexible display module 2 can cooperate with the housing 1 through a support member to achieve sliding in the housing 1. Figure 2 As shown, the support member may include a track support member 11 and a tail support member 12. The tail end of the flexible display module 2 may be connected to the tail support member 12, and the two ends of the flexible display module 2 adjacent to the tail end (i.e., the sides of the "U" shape) may be connected to the track support member 11. A corresponding track (not shown) may be provided on the inside of the housing 1. The track support member 11 and the tail support member 12 may slide on the track of the housing 1, so that the front end of the flexible display module 2 can be extended and retracted into the housing 1, achieving switching between an extended state and a retracted state. In an exemplary embodiment, the flexible display module 2 may be connected to the track support member 11 and the tail support member 12 by bonding or other means, but this disclosure is not limited to this.

[0071] In an exemplary embodiment, the flexible display module 2 includes a display-side surface and a non-display-side surface opposite the display-side surface, and the trailing support member 12 may be located on the non-display side of the flexible display module 2. The pressing component 5 is connected to the trailing support member 12 and may be located on a side of the trailing support member 12 away from the flexible display module 2.

[0072] Figure 3 FIG is a front view of a pressing member in an exemplary embodiment. Figure 2 and Figure 3As shown, the pressing component 5 may include a sliding plate 53 and a pressing plate 54 sequentially arranged in a direction facing the flexible display module 2. At least one pressure providing member may be provided between the sliding plate 53 and the pressing plate 54. The pressure providing member may be provided to provide a pressing force to the flexible display module 2. A flexible plate 55 may be provided on the side of the pressing plate 54 facing the flexible display module 2. The flexible plate 55 may be in contact with the flexible display module 2. The material of the flexible plate 55 may be a material with a large deformation amount, such as rubber, to avoid damage to the flexible display module 2. The present disclosure does not impose any restrictions on this. The pressing plate 54 and the flexible plate 55 may be connected by bonding or the like. The pressure providing member may be a spring 51. Under the action of the flexible plate 55, the pressing component 5 may flexibly press the flexible display module 2. A first pressing portion 532 may be provided on the surface of the sliding plate 53 facing the flexible display module 2 , and a second pressing portion 541 may be correspondingly provided on the surface of the pressing plate 54 away from the flexible display module 2 , and the spring 51 may be fixed between the first pressing portion 532 and the second pressing portion 541 .

[0073] In an exemplary embodiment, Figure 3 As shown, a first connecting boss 121 can be provided on the surface of the rear support member 12 facing away from the flexible display module 2. The first connecting boss 121 can pass through the flexible plate 55 and the pressure plate 54 and then extend into the sleeve 52. The sleeve 52 can contact the surface of the sliding plate 53 facing the flexible display module 2 to compensate for the height difference between the rear support member 12 and the sliding plate 53. In an exemplary embodiment, the sliding plate 53 can be provided with a through hole 533, which can be corresponding to the sleeve 52. The first connecting boss 121 can pass through the sleeve 52 and then extend into the through hole 533 to achieve a fixed connection between the rear support member 12 and the sliding plate 53.

[0074] In an exemplary embodiment, the first connecting boss 121 can pass through one end of the scissor mechanism 3 and then extend into the sleeve 52 to secure the one end of the scissor mechanism 3. In an exemplary embodiment, a sliding bar 531 can be provided on the surface of the sliding plate 53 facing away from the flexible display module 2, and a sliding rail 42 can be correspondingly provided on the surface of the back panel 4 facing the flexible display module 2. The pressing component 5 can slide on the sliding rail 42 of the back panel 4 via the sliding bar 531.

[0075] In an exemplary embodiment, along the extension direction of the rear end of the flexible display module 2, the pressure-providing member may include at least one first pressure-providing member located in the middle of the rear end of the flexible display module 2, and at least two second pressure-providing members located on either side of the middle of the rear end of the flexible display module 2. The tensioning force provided by the first pressure-providing member may be greater than or equal to the tensioning force provided by the second pressure-providing member. In this embodiment, the pressure-providing member may be a spring. Figure 2 and Figure 3FIG shows a case where three springs 51 are evenly distributed on the pressing component 5, wherein one spring 51 is located in the middle of the rear end of the flexible display module 2, and the remaining two springs 51 can be symmetrically distributed relative to the middle of the rear end of the flexible display module 2. Figure 3 As shown, the three springs 51 can be configured to have the same elastic modulus, and the compression of the spring 51 in the middle is greater than the compression of the springs 51 on both sides, so that the pressing force provided by the spring 51 in the middle can be greater than the pressing force provided by the springs 51 on both sides. Since the rebound force at the tail end of the flexible display module 2 is relatively large in the unfolded state, the middle part of the tail end of the flexible display module 2 is easily arched under the force, resulting in the arching of the middle part of the flexible display module 2. In this embodiment, by configuring the spring 51 in the middle to have a larger compression, the force applied to the middle side of the tail end of the flexible display module 2 is increased, which helps to better improve the arching phenomenon of the middle side of the tail end of the flexible display module 2 and make the unfolded state of the flexible display module 2 smoother. In other embodiments, an appropriate number of springs 51 can be provided as needed, the distribution of the springs 51 can be configured as needed, the springs 51 in different positions can be configured to have different elastic moduli, and other elastic members or other components (such as hydraulic components) can be used to provide the pressing force to the tail end of the flexible display module 2. This is not limited by the present disclosure.

[0076] In an exemplary embodiment, Figure 2 As shown, the flexible display device may further include a scissor mechanism 3. One end of the scissor mechanism 3 may be connected to the pressing component 5, and the other end of the scissor mechanism 3 may be connected to the back plate 4. Figure 2 As shown, the scissor-type mechanism 3 may include a first short member 31, a second short member 32, a first long member 33, a second long member 34, a third short member 35, a fourth short member 36 and a plurality of pins 37, wherein the first short member 31, the first long member 33 and the fourth short member 36 are connected in sequence by the pins 37, and the second short member 32, the second long member 34 and the third short member 35 are connected in sequence by the pins 37, and the other ends of the first short member 31 and the second short member 32 can be connected to the second connecting boss 41 located on the back plate 4 to be fixed on the back plate 4, and the other ends of the third short member 35 and the fourth short member 36 can be connected between the first connecting boss 121 and the sleeve 52 to realize that one end of the scissor-type mechanism 3 moves with the tail support 12, that is, the end of the scissor-type mechanism 3 connected to the back plate 4 is the fixed end, and the end of the scissor-type mechanism 3 connected to the tail support 12 is the movable end. Figure 2The scissor-type mechanism 3 can realize the function of stretching back and forth with the movement of the tail support member 12. In the exemplary embodiment, since the pressing component 5 provides a pressing force to the flexible display module 2 through the spring 51, during the switching of the flexible display module 2 between the expanded state and the retracted state, the pressing component 5 may be at risk of moving in a direction perpendicular to the display side surface of the flexible display module 2. By setting the scissor-type mechanism 3 to be connected between the first connecting boss 121 and the sleeve 52, the scissor-type mechanism 3 moves with the tail support member 12, and can limit the movement of the pressing component 5 in a direction perpendicular to the display side, so that the pressing component 5 can only move in a plane parallel to the display side surface, thereby reducing the risk of damage to the flexible display module 2, ensuring a smooth state switching process, and helping to improve the service life of the flexible display device.

[0077] In an exemplary embodiment, the scissor mechanism 3 may include a first scissor mechanism and a second scissor mechanism symmetrically arranged along the middle of the rear end of the flexible display module 2. Figure 2 As shown, two scissor-type mechanisms can be evenly arranged along the extension direction of the pressing component 5. The two scissor-type mechanisms can be symmetrically arranged along the middle of the rear end of the flexible display module 2. This can ensure that the pressing component 5 is evenly stressed during movement, prevent the flexible display module 2 from being displaced during movement, improve the safety of the movement process of the flexible display module 2, and further increase the service life of the flexible display device. In other embodiments, an appropriate number of scissor-type mechanisms can be provided as needed, and the distribution of the scissor-type mechanisms can be set as needed, and this disclosure is not limited to this.

[0078] Figure 4 for Figure 2 Schematic diagram of the flexible display device in the retracted state. Figure 5 for Figure 2 Schematic diagram of the flexible display device in the unfolded state. Figure 4 and Figure 5 As shown, when the flexible display device is in the retracted state, the scissor mechanism 3 is stretched. When the flexible display device is in the expanded state, the head end of the flexible display module 2 extends to the outside of the housing 1 for display, the tail end of the flexible display module 2 remains in the housing 1, and the scissor mechanism 3 is compressed. Due to the provision of the clamping component 5, the tail end of the flexible display module 2 is subjected to uniform force, and there will be no arching on the middle side. The flexible display module 2 can be smoothly expanded, and the user experience is better. When the flexible display device switches between the retracted state and the expanded state, the clamping component 5 can move with the movement of the tail end of the flexible display module 2, continuously providing tension to the tail end of the flexible display module 2, and always keeping the tail end of the flexible display module 2 compressed.

[0079] Figure 6 FIG. 1 is a schematic diagram of the backplane structure of a flexible display device in an exemplary embodiment. Figure 6 As shown, the back panel 4 can be provided with a second connection boss 41 and a slide rail 42 on the surface facing the flexible display module 2. The second connection boss 41 can be fixedly connected to one end of the scissor mechanism 3, and the slide rail 42 can match the slide bar 531 provided on the sliding plate 53 to achieve sliding of the pressing component 5 on the back panel 4 and synchronized movement between the scissor mechanism 3 and the pressing component 5.

[0080] Although the embodiments disclosed herein are as described above, the contents described herein are merely embodiments for facilitating understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art may make any modifications and variations in the form and details of the embodiments without departing from the spirit and scope of the present invention. However, the scope of patent protection of the present invention shall remain subject to the scope defined by the appended claims.

Claims

1. A flexible display device, characterized in that: include: Housing, flexible display module and pressing parts; The flexible display module is located in the housing, and the housing and the flexible display module are slidably connected; The flexible display module includes a head end and a tail end that are arranged opposite to each other; The flexible display module includes an unfolded state and a retracted state. In the unfolded state, the front end of the flexible display module extends out of the housing, and the rear end of the flexible display module is located inside the housing. In the retracted state, the front end of the flexible display module is retracted into the housing, and part of the display side surface of the flexible display module is displayed; The pressing component is provided at the rear end of the flexible display module and is configured to provide a pressing force to the rear end of the flexible display module in a direction perpendicular to the rear end of the flexible display module to prevent the middle side of the flexible display module from bulging; Wherein, a track is provided inside the housing, the flexible display module is connected to a support member, and the support member is configured to slide on the track so that the head end of the flexible display module extends out of and retracts into the housing; The support member includes a track support member, and the two ends of the flexible display module adjacent to the tail end are connected to the track support member; The pressing component includes a sliding plate and a pressing plate sequentially arranged in a direction facing the flexible display module, and at least one pressure providing member is arranged between the sliding plate and the pressing plate, and the pressure providing member is configured to provide the pressing force; In the extension direction along the tail end, the pressure providing member includes at least one first pressure providing member located in the middle of the tail end, and at least two second pressure providing members located on both sides of the middle of the tail end, and the tensioning force provided by the first pressure providing member is greater than or equal to the tensioning force provided by the second pressure providing member.

2. The flexible display device according to claim 1, wherein: The support member further includes a tail side support member; the tail end of the flexible display module is connected to the tail side support member.

3. The flexible display device according to claim 2, wherein: The flexible display module includes a display side surface and a non-display side surface opposite to the display side surface; the tail side support is located on the non-display side of the flexible display module; the pressing component is connected to the tail side support, and the pressing component is located on the side of the tail side support away from the flexible display module.

4. The flexible display device according to claim 1, wherein: A first pressing portion is provided on a surface of the sliding plate facing the flexible display module, a second pressing portion is provided on a surface of the pressing plate away from the flexible display module, and the pressure providing member is fixed between the first pressing portion and the second pressing portion.

5. The flexible display device according to claim 1, wherein: The pressing component further includes a flexible plate, and the flexible plate is located on a side of the pressing plate close to the flexible display module.

6. The flexible display device according to claim 2, wherein: A first connecting boss is provided on the surface of the tail side support member away from the flexible display module, and a sleeve is provided between the sliding plate and the pressure plate. The surface of the sleeve away from the flexible display module is in contact with the surface of the sliding plate; the first connecting boss passes through the pressure plate and is connected to the sleeve.

7. The flexible display device according to claim 6, wherein: The flexible display device further includes a back plate fixedly connected to the housing; the flexible display device further includes a scissor mechanism; one end of the scissor mechanism is connected to the pressing component, and the other end of the scissor mechanism is connected to the back plate.

8. The flexible display device according to claim 7, wherein: One end of the scissor mechanism is connected between the first connecting boss and the sleeve; a second connecting boss is provided on the surface of the back plate facing the flexible display module, and the other end of the scissor mechanism is connected to the second connecting boss.

9. The flexible display device according to claim 7, wherein: A sliding bar is provided on the surface of the sliding plate away from the flexible display module, a sliding rail is provided on the surface of the back plate facing the flexible display module, and the sliding bar is configured to slide in the sliding rail.

10. The flexible display device according to claim 8, wherein: The scissor-type mechanism includes a first scissor-type mechanism and a second scissor-type mechanism symmetrically arranged along the middle portion of the tail end.

11. The flexible display device according to claim 8, wherein: The scissor mechanism includes a first short member, a second short member, a first long member, a second long member, a third short member, a fourth short member and a plurality of pins; Among them, the first short member, the first long member and the fourth short member are connected in sequence through the pin shaft, and the second short member, the second long member and the third short member are connected in sequence through the pin shaft; the other ends of the first short member and the second short member are connected to the second connecting boss, and the other ends of the third short member and the fourth short member are connected between the first connecting boss and the sleeve.

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