Display module and display device

Abstract

The present application discloses a display module and a display device, comprising: a casing assembly, comprising a first casing and a second casing, the first casing comprising a fixed casing and a movable casing that slide relative to each other, the fixed casing being hinged to the second casing; a flexible display panel, the flexible display panel being rolled up on the casing assembly; a traction assembly, comprising a traction rope and a driving device, one end of the traction rope being fixedly connected to the movable casing, the other end of the traction rope being fixedly connected to the driving device, the driving device being arranged on the second casing; the traction assembly being used for traction of the movable casing to move toward a side close to the fixed casing and driving the flexible display panel to switch from an extended state to a retracted state; a reset assembly, comprising an elastic member, one end of the elastic member being connected to the movable casing, the other end of the elastic member being connected to the fixed casing, the reset assembly being used for driving the movable casing to move toward a side away from the fixed casing and driving the flexible display panel to switch from a retracted state to an extended state.

Description

Technical Field

[0001] The present application generally relates to the field of display technology, and specifically to a display module and a display device. Background Art

[0002] With the development of flexible display technology, display devices not only pursue display effects such as high resolution, high contrast, and high screen-to-body ratio, but also have diversified requirements for the appearance of display devices, such as special-shaped display panels, roll-up display panels, etc. The roll-up display panel is a flexible display panel, and the future flexible display will develop in the direction of foldable and rollable.

[0003] Existing display devices generally use a sliding drive device to achieve automatic expansion and contraction, but most of the current drive devices have many parts and occupy a large amount of space, which cannot meet the requirements of light, thin and compact display devices. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a display module that can realize automatic contraction and expansion of a flexible display panel and occupy a small space.

[0005] In a first aspect, the present application provides a display module, comprising:

[0006] A housing assembly, comprising a first housing and a second housing, wherein the first housing comprises a fixed housing and a movable housing that slide relative to each other, and the fixed housing is hinged to the second housing;

[0007] A flexible display panel, wherein the flexible display panel is rolled up on the housing assembly;

[0008] A traction assembly, comprising a traction rope and a driving device, one end of the traction rope is fixedly connected to the movable housing, the other end of the traction rope is fixedly connected to the driving device, and the driving device is arranged on the second housing; the traction assembly is used to pull the movable housing to move toward a side close to the fixed housing and drive the flexible display panel to switch from an expanded state to a retracted state;

[0009] A reset component includes an elastic member, one end of which is connected to the movable shell, and the other end of which is connected to the fixed shell. The reset component is used to drive the movable shell to move toward a side away from the fixed shell and drive the flexible display panel to switch from a contracted state to an expanded state.

[0010] Optionally, a hinge assembly is included, the hinge assembly includes a first hinge portion provided on the first housing and a second hinge portion provided on the second housing, the first hinge portion and the second hinge portion are hingedly provided.

[0011] Optionally, the traction assembly further comprises at least one tensioning wheel for tensioning the traction rope, and the at least one tensioning wheel comprises a first tensioning wheel arranged on the hinge assembly.

[0012] Optionally, the hinge assembly is provided with a mounting groove, mounting portions located at both ends of the mounting groove, and an avoidance hole for the traction rope to pass through;

[0013] The traction assembly includes a mounting shaft matched with the first tensioning wheel, the first tensioning wheel is arranged in the mounting groove, and the mounting shaft is fixed on the mounting portion.

[0014] Optionally, the reset assembly comprises a push rod disposed on the fixed housing, one end of the push rod is fixedly connected to the movable housing, and the other end of the push rod is provided with a push block in contact with the elastic member;

[0015] The push rod is also provided with a fixing block fixedly connected to the traction rope.

[0016] Optionally, the reset assembly further includes a first stopper, a second stopper and a limiting rod provided on the fixed shell, the elastic member and the push block are both sleeved on the limiting rod, and one end of the elastic member contacts the second stopper.

[0017] Optionally, the elastic member is a compression spring, and when the flexible display panel is in the unfolded state, the compression spring is in a compressed state.

[0018] Optionally, when the traction assembly pulls the movable shell to move toward a side close to the fixed shell, the traction force applied by the drive assembly to the movable shell is greater than the rebound force applied by the elastic member to the movable shell;

[0019] When the resetting assembly drives the movable housing to move toward a side away from the fixed housing, the driving device stops applying traction to the movable housing.

[0020] Optionally, a guide assembly is further included, wherein the guide assembly includes a guide rail arranged on the fixed shell and a slider slidably matched with the guide rail, and the movable shell is fixedly connected to the slider via a guide rod.

[0021] Optionally, the movable shell includes two end plates and a scroll disposed between the two end plates, a plurality of comb teeth are arranged at intervals on the scroll, and a tooth groove that slides with the comb teeth is provided on the fixed shell, and the comb teeth on the side close to the flexible display panel are flush with the side of the fixed shell close to the flexible display panel.

[0022] Optionally, the flexible display panel is rolled up on the winding shaft, the flexible display panel includes a first end and a second end arranged opposite to each other, the fixed shell includes a first side and a second side arranged opposite to each other, the first end of the flexible display panel is fixedly arranged on the first side of the fixed shell, and the second end of the flexible display panel is slidably arranged on the second side of the fixed shell.

[0023] Optionally, the first end of the flexible display panel is fixedly set on the second housing, and the flexible display panel includes a first display area, a second display area, and a third display area which are arranged adjacent to each other in sequence, wherein the first display area is laid on the movable housing, the second display area is laid on the fixed housing, and the third display area is laid on the second housing.

[0024] Optionally, the flexible display panel includes a sliding support assembly arranged on a side away from the display surface, and the sliding support assembly includes a plurality of support bars; a support guide rail that slides with the support bar is provided on the end plate, and an extension direction of the support guide rail is consistent with the movement direction of the flexible display panel.

[0025] Optionally, the flexible display panel includes an installation area and a non-installation area on the side facing away from the display surface, the sliding support assembly is arranged in the installation area, and the surface of the support bar on the side facing away from the display surface is flush with the surface of the non-installation area on the side facing away from the display surface.

[0026] Optionally, a winding assembly is further included, the winding assembly includes a fixing member arranged on the fixed shell and a tension spring arranged on the fixing member, and the tension spring is fixed to the second end of the flexible display panel.

[0027] In a second aspect, the present application provides a display device, comprising any display module as described above.

[0028] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0029] The display module provided in the embodiment of the present application is connected to the movable shell through a traction component and a reset component. By driving the movable shell and the fixed shell to move relative to each other, and driving the flexible display panel to shrink or expand relative to the fixed shell during the movement, automatic switching between small-size display and large-size display is achieved. The use of the traction component and the reset component can reduce the structural complexity of the display module, improve the assembly convenience and assembly yield of the display module, and reduce the thickness of the first shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0031] Figure 1 A schematic diagram of the structure of a display module provided in an embodiment of the present application;

[0032] Figure 2-3 A schematic diagram of an unfolded state of a display module provided in an embodiment of the present application;

[0033] Figure 4-5 A schematic diagram of a storage state of a display module provided in an embodiment of the present application;

[0034] Figure 6 A schematic diagram of the structure of a flexible display panel provided in an embodiment of the present application;

[0035] Figure 7 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0036] Figure 8 for Figure 1 Schematic diagram of the explosion at A in the middle;

[0037] Fig. 9 An exploded schematic diagram of a display module provided in an embodiment of the present application;

[0038] Fig.10 A schematic diagram of the structure of a flexible display panel provided in an embodiment of the present application;

[0039] Fig.11 A schematic diagram of a folded state of a display module provided in an embodiment of the present application;

[0040] Fig.12 A schematic diagram of a flattened state of a display module provided in an embodiment of the present application;

[0041] Fig.13 A schematic structural diagram of a traction assembly provided in an embodiment of the present application;

[0042] Fig.14 for Fig. 9 The enlarged schematic diagram of point B in the middle;

[0043] Fig.15 A schematic structural diagram of a sliding support assembly provided in an embodiment of the present application;

[0044] Fig.16 A schematic structural diagram of another sliding support assembly provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] Please see Figure 1 , the present application provides a display module, comprising:

[0048] The housing assembly 100 includes a first housing 101 and a second housing 102, wherein the first housing 101 includes a fixed housing 103 and a movable housing 104 that slide relative to each other, and the fixed housing 103 is hinged to the second housing 102;

[0049] A flexible display panel 200, wherein the flexible display panel 200 is rolled up on the housing assembly 100;

[0050] The traction assembly 300 includes a traction rope 301 and a driving device 302, one end of the traction rope 301 is fixedly connected to the movable housing 104, and the other end of the traction rope 301 is fixedly connected to the driving device 302, and the driving device 302 is arranged on the second housing 102; the traction assembly 300 is used to pull the movable housing 104 to move toward the side close to the fixed housing 103 and drive the flexible display panel 200 to switch from the expanded state to the retracted state;

[0051] The reset component 400 includes an elastic member 401, one end of which is connected to the movable shell 104, and the other end of which is connected to the fixed shell 103. The reset component 400 is used to drive the movable shell 104 to move toward a side away from the fixed shell 103 and drive the flexible display panel 200 to switch from a contracted state to an expanded state.

[0052] In the embodiment of the present application, the display module includes two state switching modes, one is the relative sliding between the fixed shell 103 and the movable shell 104, that is, sliding switching, and the other is the relative rotation between the first shell 101 and the second shell 102, that is, folding switching. The sliding switching mode can be used to switch from the expanded state to the contracted state, and the folding switching mode can be used to switch between the flattened state and the folded state.

[0053] According to different needs of users, the flexible display panel 200 can be in different states. In this application, it is defined that when the movable housing 104 and the fixed housing 103 are in the closest state, it is the contracted state of the flexible display panel 200. Figure 2-3 As shown, the movable housing 104 is mostly located in the internal space of the fixed housing 103. When the movable housing 104 and the fixed housing 103 slide to a greater distance, the flexible display panel 200 is in an unfolded state, as shown in FIG. Figure 4-5 As shown, the movable housing 104 mostly extends out of the internal space of the fixed housing 103. In the unfolded state, the flexible display panel 200 is in a large-screen display state, and in the retracted state, the flexible display panel 200 is in a small-screen display state. In both states, the portion of the flexible display panel 200 located in the display device can be used to display images.

[0054] It can be understood that in the embodiment of the present application, when the flexible display panel 200 is pulled out or pulled into the fixed housing, the display panel can stop at any position between the expanded state and the contracted state of the flexible display panel 200 through the traction assembly 300, and the locking force is provided by the driving device 302. By controlling the length of the traction rope 301, the flexible display panel 200 can be controlled to stop at any position. Therefore, the flexible display device can be controlled to select an area of ​​any size for display between the contracted state and the expanded state, which is more flexible.

[0055] like Figure 6 As shown, the flexible display panel 200 includes a display surface for displaying. In the embodiment of the present application, the flexible display panel 200 is rolled up on the reel 106 of the movable shell 104, and the flexible display panel 200 includes a first end 211 and a second end 212 arranged opposite to each other. The fixed shell 103 includes a first side and a second side arranged opposite to each other, the first side is a side close to the display surface, and the second side is the other side away from the display surface; the first end 211 of the flexible display panel 200 is fixedly arranged on the first side of the fixed shell 103, and the second end 212 of the flexible display panel 200 is fixedly arranged on the second side of the fixed shell 103.

[0056] The first housing 101 is provided with a first accommodating area 204 on the second side, and the second housing 102 is provided with a second accommodating area 205 on the same side as the second side, and the thickness of the first accommodating area 204 in a direction perpendicular to the first housing 101 is smaller than the thickness of the second accommodating area 205 in a direction perpendicular to the second housing 102.

[0057] It can be understood that in this example embodiment, the width refers to the dimension in the axial direction of the reel 106, the length refers to the dimension in the direction perpendicular to the axial direction of the reel 106 and parallel to the fixed housing, and the thickness refers to the dimension in the direction perpendicular to the fixed housing.

[0058] In the embodiment of the present application, the driving device 302 with increased thickness in the traction assembly 300 can be arranged in the second accommodation area 205 on the second housing 102, which can reduce the thickness of the first housing 101; the reset assembly 400 has a smaller thickness and can be arranged in the first accommodation area 204, but it does not constitute a limitation of the present application. In different embodiments, according to the different thicknesses of various parts on the traction assembly 300 and the reset assembly 400, they can be arranged in the first accommodation area 204 and the second accommodation area 205 of the present application to reduce the thickness of the first housing 101. The second accommodation area 205 can also be provided with components such as a battery 221 and a circuit board 222.

[0059] In the embodiments of the present application, Figure 7-8 As shown, the first housing 101 also includes a guide assembly 600 for guiding the relative sliding between the fixed housing 103 and the movable housing 104. The guide assembly 600 includes a guide rail 601 arranged on the fixed housing 103 and a slider 602 slidably matched with the guide rail 601. The movable housing 104 is fixedly connected to the slider 602 via a guide rod 603.

[0060] In addition, if Fig. 9 As shown, the movable shell 104 includes two end plates 105 and a scroll 106 arranged between the two end plates 105, a plurality of comb teeth 107 are arranged at intervals on the movable shell 104, and a tooth groove 108 that slides with the comb teeth 107 is provided on the fixed shell 103, and the comb teeth 107 on the side close to the flexible display panel 200 are flush with the side of the fixed shell 103 on the side close to the flexible display panel 200.

[0061] The scroll 106 may adopt a fixed arc structure, for example, the position in contact with the flexible display panel 200 is set to an arc. In this case, when the flexible display panel 200 slides and rolls, since the scroll 106 is fixed, there is sliding friction between the two. The structure of the scroll 106 can be set according to actual needs, and the embodiment of the present disclosure does not limit this.

[0062] In the embodiment of the present application, the comb teeth 107 and the tooth grooves 108 are arranged on the first side of the first shell, and the guide assembly 600 is arranged on the second side of the first shell, that is, the guide assembly is arranged on the same side of the traction assembly 300 and the reset assembly 400, and is used to guide the movement of the traction assembly 300 and the reset assembly 400 to improve the movement accuracy.

[0063] When the flexible display panel 200 is pulled out of the housing as the comb teeth 107 moves, since the tooth grooves 108 are fixed to the two first side plates and remain stationary, the comb teeth 107 gradually move away from the fixed housing 103 as the comb teeth 107 slide, and the length of the comb teeth 107 embedded in the tooth grooves 108 gradually shortens. When the flexible display panel 200 is retracted into the fixed housing 103 as the comb teeth 107 slide, the comb teeth 107 gradually slide toward the direction close to the tooth grooves 108, and the length of the comb teeth 107 embedded in the tooth grooves 108 gradually lengthens. Therefore, during the movement of the comb teeth 107, the tooth grooves 108 and the comb teeth 107 always have an overlapping area, so that the part of the flexible display panel 200 outside the housing is supported at any position.

[0064] In one embodiment, the length of the comb teeth 107 is less than or equal to the length of the tooth groove 108, so that when the comb teeth 107 slide to the display area of ​​the flexible display panel 200 is in a retracted state, the comb teeth 107 are completely embedded in the tooth groove 108 in the length direction, and the tooth groove 108 and the comb teeth 107 cooperate with each other, and there is no large gap between the two. When touching the flexible display panel 200, each part is supported, which improves the touch effect. In addition, the length direction of the tooth groove 108 can provide a limit in the unfolding direction, so that the flexible display panel 200 is evenly stressed during the unfolding process.

[0065] In the embodiment of the present application, the flexible display panel 200 is disposed on the first housing 101. Figure 2 and Figure 3 The flexible display panel 200 is shown in the unfolded state. The unfolded flexible display panel 200 can be divided into two parts: a sliding area 201 (i.e., the part of the flexible display panel 200 directly laid on the movable shell 104) and a fixed area 202 (i.e., the part of the flexible display panel 200 directly laid on the fixed shell). In the embodiment of the present application, the sliding area 201 and the fixed area 202 are both flexible display areas, that is, the entire flexible display panel 200 is a flexible display; or the sliding area 201 is a flexible display area, and the fixed area 202 is a rigid display area, that is, the part of the entire flexible display panel 200 that performs the sliding movement is the flexible display panel 200. The embodiment of the present application does not limit the form of the flexible display panel 200.

[0066] In other embodiments, Fig.10As shown, the flexible display panel 200 extends from the first housing 101 to the second housing 102, that is, the flexible display panel 200 includes three display areas. Exemplarily, the flexible display panel 200 includes a first display area (sliding area 201), a second display area (fixed area 202) and a third display area 203 which are arranged adjacent to each other in sequence, and the third display area 203 is the part of the flexible display panel 200 laid on the second housing 102. It should be noted that the first display area, the second display area and the third display area 203 of the flexible display panel 200 are integrally formed in the same process, and are only divided into the first display area, the second display area and the third display area 203 in terms of the display area.

[0067] Exemplarily, the third display area 203 may be an operation interface, such as a virtual keyboard 206 area. When the virtual keyboard 206 is not displayed, the virtual keyboard 206 area may be displayed as a whole screen together with other display areas. It is understandable that in the embodiment of the present application, the third display area 203 in the present application may also be an independent display panel. Of course, in some other embodiments, the second housing 102 may be a non-display device, that is, a physical keyboard 206 area may be provided. The present application does not limit this. Different settings may be made according to different scenarios and application devices during application.

[0068] In this embodiment, an exemplary description is given by taking the area where the physical keyboard 206 is provided on the second housing 102. The display device includes a hinge assembly 500, and the hinge assembly 500 includes a first hinge portion 501 provided on the first housing 101 and a second hinge portion 502 provided on the second housing 102, and the first hinge portion 501 and the second hinge portion 502 are hingedly provided.

[0069] In the embodiment of the present application, the hinge mode of the first housing 101 and the second housing 102 is not limited. In some embodiments, the first housing 101 and the second housing 102 can be directly hinged. For example, the first hinge part 501 is a hinge hole, and the second hinge part 502 is a hinge column, and the hinge hole is hinged to the hinge part. In other embodiments, the first housing 101 and the second housing 102 can be hinged to the hinge mechanism separately. For example, the hinge structure includes a first rotating shaft hinged to the first housing 101 and a second rotating shaft hinged to the second housing 102.

[0070] It can be understood that in different embodiments, the display module can be folded inward or outward, and also includes a rotating component that can be folded inward or outward, with a rotation angle between 0 and 180 degrees. The display module can be adjusted and fixed by a hinge mechanism, so that the foldable display device can be used at a variety of different opening and closing angles. Fig.11 A schematic diagram showing a folded state of a display module is shown in FIG. Fig.12 A schematic diagram showing a flattened state of a display module is shown in FIG.

[0071] In particular, when the third display area 203 is provided on the second housing 102, the second display area 203 and the third display area 203 are also folded together accordingly during the folding process of the second housing 102 and the first housing 101, and the rolling assembly 800 can automatically adjust the curling length of the third display area 203, that is, adjust the length of the flexible display panel 200 located on the first housing 101 and the second housing 102. In the embodiment of the present application, the display module is folded in the contracted state for exemplary description, and the contracted state and the unfolded state do not affect the realization of the folded state.

[0072] In the embodiments of the present application, Fig.13 As shown, the traction assembly 300 further includes at least one tensioning wheel for tensioning the traction rope 301, and the at least one tensioning wheel includes a first tensioning wheel 303 disposed on the hinge assembly 500. In some embodiments, the at least one tensioning wheel 303 includes one or more second tensioning wheels (not shown) disposed in the second accommodating area 205. By providing one or more tensioning wheels to adjust the tension of the traction rope 301, the control accuracy of the traction assembly 300 is improved.

[0073] In the embodiment of the present application, since the driving device 302 is arranged in the second accommodating area 205 on the second housing 102, the traction rope 301 extends from the second housing 102 through the hinge assembly 500 to the first housing 101 and is fixedly connected to the movable housing 104. In order to improve the tension of the traction rope 301 and the movement accuracy of the traction mechanism, multiple tensioning wheels 303 can be arranged on the first housing 101 and the second housing 102, especially at the hinge position of the first housing 101 and the second housing 102. The hinge assembly 500 is provided with a mounting groove 503, mounting parts 504 at both ends of the mounting groove 503, and an avoidance hole 505 for the traction rope 301 to pass through; the mounting groove 503 can be arranged on the second hinge part 502, and the mounting groove 503 is used to fix the first tensioning wheel 303.

[0074] The traction assembly 300 includes a mounting shaft 506 that cooperates with the first tensioning wheel 303. The first tensioning wheel 303 is disposed in the mounting groove 503, and the mounting shaft 506 is fixed to the mounting portion 504. In this embodiment, a sliding groove for the traction rope 301 to cooperate is disposed on the first tensioning wheel 303. The traction rope 301 passes through the avoidance hole 505 on the hinge assembly 500, and then is introduced into the first housing 101 and the second housing 102 at both ends. The first housing 101 and the second housing 102 are also provided with through holes for the traction rope 301 to pass through. It can be understood that as the first housing 101 and the second housing 102 rotate at the position of the hinge assembly 500, the traction rope 301 on the first housing 101 and the second housing 102 also rotates together with the first housing 101 and the second housing 102. Therefore, the avoidance hole 505 is set to allow the traction rope 301 to rotate together with the display module when switching between the flattened state and the folded state, thereby improving the traction accuracy of the traction assembly 300.

[0075] The driving device 302 can be a motor or a reduction device connected to the traction rope 301. The traction rope 301 of the motor or the reduction device can make the entire motion system controlled by electrical signals. The user only needs to transmit electrical signals to the motor through buttons to drive the entire motion system to move, so that the flexible display device of the present application can switch between the two display states of contraction and expansion.

[0076] The motor controller adjusts the motor to control the speed at which the flexible display panel 200 moves the movable housing 104, thereby controlling the tension of the flexible display panel 200, so that the flexible display panel 200 can maintain a fixed tension during the unfolding process. However, this embodiment is not limited to this. The driving component can be other structures that can drive the flexible display panel 200 and the second housing 102 to move. It is understandable that in specific applications, those skilled in the art can also select a driving member such as a motor, an electric motor, and a hydraulic motor as the first driving member according to actual needs, and the embodiment of the present invention may not limit the specific content of the driving device 302.

[0077] In this embodiment, please continue to refer to Figure 7-8 The reset assembly 400 includes a push rod 402 arranged on the fixed shell 103, one end of the push rod 402 is fixedly connected to the movable shell 104, and the other end of the push rod 402 is provided with a push block 407 in contact with the elastic member 401; the push rod 402 is also provided with a fixed block 403 fixedly connected to the traction rope 301.

[0078] In some embodiments, the fixing block 403 may be a screw fixed on the push rod 402, and the traction rope 301 is sleeved on the screw for easy installation, fixing and disassembly. When the traction assembly 300 drives the push rod 402 to move toward the fixed housing 103, the push block 407 on the push rod 402 compresses the elastic member 401 downward. When the driving device 302 tightens the traction rope 301, the elastic member 401 can apply an upward reverse force to the traction rope 301 to improve the stability of the movable housing 104. When the driving device 302 relaxes the traction rope 301, the elastic force of the elastic member 401 is applied to the push block 407, driving the push rod 402 to move upward, so that the movable housing 104 can be switched to the deployed state.

[0079] The reset assembly 400 further includes a first stopper 404, a second stopper 405, and a limit rod 406 disposed on the fixed housing 103. The elastic member 401 and the push block 407 are both sleeved on the limit rod 406, and one end of the elastic member 401 is in contact with the second stopper 405. The first stopper 404 and the second stopper 405 can be used to limit the relative limit position of the movable housing 104 and the fixed housing 103, improve the movement stability, and prevent the movable housing 104 from being separated from the fixed housing 103 or crushing the fixed housing 103.

[0080] Wherein, the elastic member 401 is a compression spring, and when the flexible display panel 200 is in an unfolded state, the compression spring is in a compressed state. In the present application, when the traction component 300 pulls the movable shell 104 to move toward the side close to the fixed shell 103, the traction force applied by the driving component to the movable shell 104 is greater than the rebound force applied by the elastic member 401 to the movable shell 104; when the reset component 400 drives the movable shell 104 to move away from the fixed shell 103, the driving device 302 stops applying traction to the movable shell 104. By controlling the rebound force of the elastic member 401 and the traction force, the motion accuracy between the sliding shell and the fixed shell 103 can be effectively controlled to prevent motion jamming.

[0081] In another embodiment of the present application, Fig.14 As shown, the flexible display panel 200 includes a sliding support assembly 700 disposed on a side away from the display surface, and the sliding support assembly 700 includes a plurality of support bars 701; Fig.15As shown, the end plate 105 is provided with a support rail 702 that slidably cooperates with the support bar 701 , and the extension direction of the support rail 702 is consistent with the movement direction of the flexible display panel 200 .

[0082] In which, the flexible display panel 200 includes an installation area 207 and a non-installation area 208 on the side facing away from the display surface, the sliding support assembly 700 is arranged in the installation area 207, and the surface of the support bar 701 on the side facing away from the display surface is flush with the surface of the non-installation area 208 on the side facing away from the display surface.

[0083] It can be understood that the installation area 207 can be located in the sliding area 201 (first display area). In order to improve the sliding effect of the display panel, the installation area 207 can extend from the sliding area 201 to the fixed area 202 (second display area). The embodiment of the present application does not limit the setting method of the installation area 207 and can be adjusted as needed.

[0084] The support bar 701 can support the flexible display panel 200. The width of the support bar 701 is greater than the width of the flexible display panel 200, so that the two ends of the support bar 701 in the width direction protrude from the flexible display panel 200. Support rails 702 can be provided on the two opposite inner side walls of the housing, and the extension direction of the support rails 702 is consistent with the moving direction of the support bar 701. The two ends of the support bar 701 protruding from the flexible display panel 200 are located in the support rails 702, so that the support bar 701 can slide in the support rails 702, thereby moving relative to the housing. Linear bearings can also be provided at the two ends of the support bar 701 to cooperate with the support rails 702.

[0085] Of course, it is understandable that a guide rail 601 may be provided on the two opposite inner side walls of the movable housing 104, and a sliding block 703 may be provided on the support bar 701. The sliding block 703 may slide in the guide rail 601, thereby driving the support bar 701 to move. In order to improve the sliding effect and reduce the sliding friction, the sliding block 703 may also be a sliding wheel. In this way, it can be ensured that the flexible display panel 200 outside the housing is also pulled in and out of the housing along this direction. When viewing the picture on the flexible display panel 200, the screen will not be tilted, thereby ensuring the viewing effect. The length of the support bar 701 and the distance between two adjacent support bars 701 are reduced, the gap feeling when contacting the scroll 106 is eliminated, and the smoothness and stability of the movement are improved.

[0086] In the embodiment of the present application, the preset motion trajectory of the edge of the flexible display panel 200 is U-shaped, therefore, the support guide rail 702 is U-shaped, including an unfolding section 705, a bending section 706 and a winding section 707 connected in sequence; when the movable shell 104 slides in a direction away from the fixed shell 103, the main body located in the unfolding section 705 can slide toward the winding section 707 through the bending section 706, and the flexible display panel 200 is in an unfolded state; when the movable shell 104 slides in a direction close to the fixed shell 103, the main body located in the winding section 707 can slide toward the unfolding section 705 through the bending section 706, and the flexible display panel 200 is in a contracted state.

[0087] In one embodiment of the present application, the support bar 701 is a rigid support bar 701, two adjacent support bars 701 are arranged at intervals, and a flexible support portion 704 is arranged at the intervals. Fig.16 As shown, the flexible support portion 704 contacts and connects with the side of the support bar 701, and part of the flexible support portion 704 is filled in the gap. This can increase the bonding area between the support bar 701 and the flexible support portion 704, and improve the connection stability; and part of the flexible support portion 704 is filled in the gap, and can also form a snap fit, which improves the connection stability.

[0088] The material of the flexible support part 704 can be silicone, or rubber, plastic, etc. The support member can be a plurality of rigid support bars 701 and silicone injection molded into one body. The rigid support bar 701 can provide support for the flexible display panel 200, and the flexible support part 704 connects the rigid support bar 701 and facilitates the bending of the support member. The length and width of the rigid support plate and the support bar 701 can be determined according to the length and width of the flexible display panel 200 to be supported. Generally, the width of the support member needs to be slightly larger than the width of the flexible display panel 200, and the flexible support part 704 can be the same as the width of the flexible display panel 200.

[0089] By alternately arranging the rigid support bars 701 and the flexible support parts 704, the sliding support assembly 700 can release the bending stress more effectively, reduce the rebound of the support bars 701, improve the fatigue resistance of the sliding support assembly 700, eliminate the arching tendency of the flexible display panel 200 caused by bending, and thus avoid the phenomenon of the flexible display panel 200 being arched and uneven when bent.

[0090] like Figure 1As shown in , in the present application, the display module further includes a winding assembly 800, and the winding assembly 800 includes a fixing member disposed on the fixed housing 103 and a tension spring 801 disposed on the fixing member, and the tension spring 801 is fixed to the second end of the flexible display panel 200. In the present application, the tension spring 801 is in an open state to apply tension to the flexible display panel, so that the flexible display panel 200 is always in a tensioned state to prevent the flexible display panel 200 from wrinkling.

[0091] It is understandable that the embodiment of the present application does not limit the configuration of the winding component 800. The winding component 800 can adopt a variety of different winding methods in the prior art, and the present application does not limit this. Any winding method is within the protection scope of the present application.

[0092] In the embodiment of the present application, the winding component 800 may be a tension spring 801, and the tension spring 801 is used to allow the flexible display panel 200 to be stored in the first accommodating area 204 in an unfolded manner. The tension spring 801 can provide a constant pulling force for the flexible display panel 200, keep the flexible display panel 200 in a tensioned state, and make the flexible display panel 200 fit tightly with the reel 106, the movable housing 104, and the fixed housing 103.

[0093] The winding component 800 can also adopt a torsion spring (not shown) so that the flexible display panel 200 can be stored in the first accommodating area 204 in the form of a reel 106. Specifically, the torsion spring can be sleeved on the driving shaft. For example, the torsion spring can apply a restoring force to the driving shaft to rotate counterclockwise, so as to drive the flexible display panel 200 to rotate counterclockwise through the counterclockwise rotation of the driving shaft, so that the flexible display panel 200 can be automatically rolled up on the driving shaft, thereby improving the user experience.

[0094] When the flexible display panel 200 is in a retracted state, the driving device 302 loosens the traction rope 301, and the elastic member 401 in the reset assembly 400 applies elastic force to the push rod 402, and the fixed housing 103 and the movable housing 104 gradually separate, and the reel 106 on the movable housing 104 pulls at least part of the flexible display panel 200 out of the first accommodating area 204 of the fixed housing 103, and the part can be used to display the picture, and the tension spring 801 in the reel assembly 800 is further pulled open. When the sliding roll area 201 of the flexible display panel 200 is pulled out of the first accommodating area 204 of the fixed housing 103, the flexible display device can realize a large-screen display, and the state of the flexible display panel 200 is an unfolded state.

[0095] When the flexible display panel 200 is in the unfolded state, when the driving device 302 pulls the traction rope 301 to move toward the second housing 102, the fixed housing 103 and the movable housing 104 also gradually approach each other, and the movable housing 104 applies a compressive force to the elastic member 401 through the push rod 402, so that the elastic member 401 is compressed, and the tension spring 801 in the winding assembly 800 rebounds to retract at least part of the flexible display panel 200 into the first accommodating area 204 of the fixed housing 103. When the expandable area of ​​the flexible display panel 200 is pulled into the first accommodating area 204 of the fixed housing 103, the flexible display device can realize a small screen display, and the state of the flexible display panel 200 is a contracted state.

[0096] Through the above-mentioned setting mode, the flexible display device can be switched between the contracted state and the expanded state. When the flexible display panel 200 needs to display on a large screen, the area to be displayed is pulled out from the housing, so that the display area of ​​the flexible display device is increased and the displayed content can be richer. When the flexible display panel 200 needs to display on a small screen, the area not to be displayed is put into the fixed housing, so that the flexible display device is small in size, occupies less space, and is easy to carry. The flexible display device of the present application can flexibly control the display area of ​​the flexible display panel 200, and the housing can also protect the internal flexible display panel 200 from damage.

[0097] Based on the same inventive concept, the present application provides a display device, including any display module as described above. The display device can be a liquid crystal panel, electronic paper, OLED (Organic Light-Emitting Diode) panel, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, or any other product or component with a foldable display function.

[0098] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0099] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0100] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" and the like appearing in this article can mean that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0101] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and illustration, and are not intended to limit the present invention to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention.

Claims

1. A display module, characterized in that: include: A housing assembly, comprising a first housing and a second housing, wherein the first housing comprises a fixed housing and a movable housing that slide relative to each other, and the fixed housing is hinged to the second housing; A flexible display panel, wherein the flexible display panel is rolled up on the housing assembly; A traction assembly, comprising a traction rope and a driving device, one end of the traction rope is fixedly connected to the movable housing, the other end of the traction rope is fixedly connected to the driving device, and the driving device is arranged on the second housing; the traction assembly is used to pull the movable housing to move toward a side close to the fixed housing and drive the flexible display panel to switch from an expanded state to a retracted state; A reset component includes an elastic member, one end of which is connected to the movable housing, and the other end of which is connected to the fixed housing, and the reset component is used to drive the movable housing to move away from the fixed housing and drive the flexible display panel to switch from a contracted state to an expanded state; wherein, The reset assembly includes a push rod arranged on the fixed shell, one end of the push rod is fixedly connected to the movable shell, and the other end of the push rod is provided with a push block in contact with the elastic member; the push rod is also provided with a fixed block fixedly connected to the traction rope.

2. The display module according to claim 1, characterized in that: The hinge assembly includes a first hinge part arranged on the first housing and a second hinge part arranged on the second housing, and the first hinge part and the second hinge part are hingedly arranged.

3. The display module according to claim 2, characterized in that: The traction assembly further comprises at least one tensioning wheel for tensioning the traction rope, and the at least one tensioning wheel comprises a first tensioning wheel arranged on the hinge assembly.

4. The display module according to claim 3, characterized in that: The hinge assembly is provided with a mounting groove, mounting parts located at both ends of the mounting groove, and an avoidance hole for the traction rope to pass through; The traction assembly includes a mounting shaft matched with the first tensioning wheel, the first tensioning wheel is arranged in the mounting groove, and the mounting shaft is fixed on the mounting portion.

5. The display module according to claim 1, characterized in that: The reset assembly also includes a first stopper, a second stopper, and a limiting rod disposed on the fixed housing; the elastic member and the push block are both sleeved on the limiting rod; and one end of the elastic member contacts the second stopper.

6. The display module according to claim 1, characterized in that: The elastic member is a compression spring, and when the flexible display panel is in an unfolded state, the compression spring is in a compressed state.

7. The display module according to claim 1, characterized in that: When the traction assembly pulls the movable shell to move toward the side close to the fixed shell, the traction force applied by the driving device to the movable shell is greater than the rebound force applied by the elastic member to the movable shell; When the resetting assembly drives the movable housing to move toward a side away from the fixed housing, the driving device stops applying traction to the movable housing.

8. The display module according to claim 1, characterized in that: It also includes a guide assembly, which includes a guide rail arranged on the fixed shell and a slider slidably matched with the guide rail, and the movable shell is fixedly connected to the slider through a guide rod.

9. The display module according to claim 1, characterized in that: The movable shell includes two end plates and a scroll arranged between the two end plates. A plurality of comb teeth are arranged at intervals on the movable shell. A tooth groove that slides with the comb teeth is arranged on the fixed shell. The comb teeth on the side close to the flexible display panel are flush with the side of the fixed shell close to the flexible display panel.

10. The display module according to claim 9, characterized in that: The flexible display panel is rolled up on the winding shaft, the flexible display panel includes a first end and a second end arranged opposite to each other, the fixed shell includes a first side and a second side arranged opposite to each other, the first end of the flexible display panel is fixedly arranged on the first side of the fixed shell, and the second end of the flexible display panel is slidably arranged on the second side of the fixed shell.

11. The display module according to claim 10, characterized in that: The first end of the flexible display panel is fixedly set on the second housing, and the flexible display panel includes a first display area, a second display area, and a third display area which are arranged adjacent to each other in sequence, wherein the first display area is laid on the movable housing, the second display area is laid on the fixed housing, and the third display area is laid on the second housing.

12. The display module according to claim 9, characterized in that: The flexible display panel includes a sliding support assembly arranged on a side away from the display surface, and the sliding support assembly includes a plurality of support bars; a support guide rail slidingly matched with the support bar is arranged on the end plate, and an extension direction of the support guide rail is consistent with the movement direction of the flexible display panel.

13. The display module according to claim 12, characterized in that: The flexible display panel includes an installation area and a non-installation area on the side facing away from the display surface, the sliding support assembly is arranged in the installation area, and the surface of the support bar on the side facing away from the display surface is flush with the surface of the non-installation area on the side facing away from the display surface.

14. The display module according to claim 9, characterized in that: It also includes a winding assembly, which includes a fixing member arranged on the fixed housing and a tension spring arranged on the fixing member, and the tension spring is fixed to the second end of the flexible display panel.

15. A display device, characterized in that: Comprising a display module as described in any one of claims 1-14.

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