Flexible display device

Abstract

A flexible display device comprises: a flexible display module, a track, a support member, a bracket, a motor slider and a movable housing; the flexible display module comprises a head end and a tail end arranged opposite to each other, and the head end of the flexible display module is fixed; the support member is located on the non-display side surface of the flexible display module, the support member is connected to the flexible display module and the track, and the support member can move under the drive of the track; the support member comprises a first support member and a tail support member, and the tail support member is connected to the tail end of the flexible display module; the bracket is located on a side of the tail support member away from the first support member, the bracket is connected to the tail support member, and is configured to provide tensile stress to the tail support member; the movable housing is connected to the track and is configured to drive the track to move; the motor slider is configured to drive the movable housing to move to achieve the expanded state of the flexible display module; the motor slider is also configured to drive the bracket to move to achieve the retracted state 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 the display module of the track-type sliding reel device has a problem of high motor power consumption when it is retracted. 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 high motor power consumption when a display module of a track-type sliding and rolling device is retracted.

[0006] On the one hand, an embodiment of the present disclosure provides a flexible display device, comprising: a flexible display module, a track, a support member, a bracket, a motor slider and a movable housing; the flexible display module comprises a head end and a tail end arranged opposite to each other, and the head end of the flexible display module is fixed; the support member is located on the non-display side surface of the flexible display module, the support member is connected to the flexible display module and the track, and the support member can move under the drive of the track; the support member comprises a first support member and a tail support member, and the tail support member is connected to the tail end of the flexible display module; the bracket is located on the side of the tail support member away from the first support member, the bracket is connected to the tail support member, and is configured to provide tensile stress to the tail support member; the movable housing is connected to the track and is configured to drive the track to move; the motor slider is configured to drive the movable housing to move to achieve the unfolded state of the flexible display module; the motor slider is also configured to drive the bracket to move to achieve the retracted state of the flexible display module.

[0007] In an exemplary embodiment, the tail support member and the bracket are connected by a sliding rod; an inclined sliding groove is provided on the bracket, and the extension direction of the inclined sliding groove intersects with the extension direction of the support member. One end of the sliding rod is connected to the tail support member, and the other end of the sliding rod can move in the inclined sliding groove.

[0008] In an exemplary embodiment, at least two sliding rods are provided between the tail support member and the bracket, and the at least two sliding rods are evenly distributed along the extension direction of the tail support member.

[0009] In an exemplary embodiment, the slide rod is connected to the inclined slide groove via a slider, and the slider is capable of moving in the inclined slide groove.

[0010] In an exemplary embodiment, the inclined slide includes a first position and a second position; when the flexible display module is in a retracted state, the slider is located at the first position; when the flexible display module is in an extended state, the slider is located at the second position.

[0011] In an exemplary embodiment, the movement of the slider in the inclined slide groove is synchronized with the movement of the flexible display module.

[0012] In an exemplary embodiment, during the movement of the flexible display module, in the unfolding direction of the flexible display module, the ratio of the movement distance of the tail end of the flexible display module to the movement distance of the sliding rod is 2:1.

[0013] In an exemplary embodiment, the movement distance of the sliding rod along the first direction is L1, the first direction is the unfolding direction of the flexible display module, and the second direction is perpendicular to the first direction; the length of the sliding rod is L2; the distance between the first position and the second position along the direction of the inclined slide groove is L3; the first angle between the extension direction of the inclined slide groove and the second direction is α1; when the slider is in the first position, the second angle between the extension direction of the sliding rod and the first direction is α2; the dimensions of each part satisfy the following relationship: (L1+L2*cosα2-L3*sinα1) 2 =(L2) 2 -(L2*sinα2-L3*cosα1) 2 .

[0014] In an exemplary embodiment, a card slot is provided on the track; the support member includes a support bar and card hooks located on both sides of the support bar; the support bar is connected to the non-display side surface of the flexible display module, and the card hook is connected to the card slot.

[0015] In an exemplary embodiment, the flexible display device further includes a fixed housing, the flexible display module is located in the fixed housing, and a head end of the flexible display module is fixed to the fixed housing.

[0016] The flexible display device provided by the disclosed embodiment comprises a bracket disposed on a side of the rear support member away from the first support member. A motor slider drives the movable housing to deploy the flexible display module, and the motor slider drives the bracket to retract the flexible display module. The bracket can apply tensile stress to the rear support member, ensuring that the flexible display module remains flat. Furthermore, the flexible display device provided by the disclosed embodiment requires less driving force during the retraction of the flexible display module, which helps conserve motor power. This solves the problem of high motor power consumption during the retraction of the display module in track-type sliding and winding devices.

[0017] 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.

[0018] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 It is a structural schematic diagram of a track-type sliding roll device;

[0021] Figure 2 for Figure 1 Cross-sectional structural diagram of the track and screen support;

[0022] Figure 3 It is a schematic diagram of the single-side structure of the screen support;

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the screen support member on the curved surface part;

[0024] Figure 5 This is a schematic structural diagram of the flexible display device in a retracted state according to an embodiment of the present disclosure;

[0025] Figure 6 is a schematic structural diagram of the flexible display device in an unfolded state according to an embodiment of the present disclosure;

[0026] Figure 7is a comparison diagram of the movement distances of the flexible display module and the sliding rod along the unfolding direction of the flexible display module in an exemplary embodiment;

[0027] Figure 8 3 is a structural comparison diagram of the sliding rod in the expanded state and the retracted state in an exemplary embodiment.

[0028] Reference numerals:

[0029] 1, 1'-flexible display module; 2, 2'-track; 3-tail support;

[0030] 3'-Screen support; 4-Motor slider; 5-Bracket;

[0031] 6-slide bar; 7-inclined slide; 8-movable housing;

[0032] 9, 9'-card slot; 10-fixed housing; 31'-support bar

[0033] 32'-hook; 33-first support member. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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. "Multiple" in this disclosure means two or more.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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°.

[0043] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0044] Figure 1 This is a schematic diagram of the structure of a track-type sliding device. Figure 1 As shown, the track-type sliding device includes a flexible display module 1', a track 2', and screen supports 3'. The flexible display module 1' can slide along the track 2' to achieve the expansion and contraction of the flexible display module 1'. Multiple screen supports 3' are attached to the non-display side of the flexible display module 1' to support the flexible display module 1' and keep the screen flat in the expanded state. Figure 2 for Figure 1 Cross-sectional view of the track and screen support components. Figure 3 This is a schematic diagram of the single-side structure of the screen support. Figures 1 to 3 The screen support 3' includes a support bar 31' and hooks 32' arranged at both ends of the support bar 31'. The support bar 31' can be pasted on the non-display side of the flexible display module 1'. A slot 9' can be provided on the track 2', and the hook 32' can be stuck in the slot 9' to enable the screen support 3' to move with the movement of the track 2'. Figure 1 In the track-type sliding device shown, the process of unfolding and retracting the flexible display module 1' is as follows: the motor drives the movable housing (not shown) and the track 2' to move, the hook 32' moves along with the track 2', and then the screen support 3' drives the flexible display module 1' to move, thereby achieving the unfolding and retracting of the flexible display module 1'. The inventors of this application have found that because the screen support 3' is strip-shaped, the contact area between the screen support 3' and the flexible display module 1' is approximately linear. Figure 1The movement mode of unfolding and retracting is a "line-driven surface" mode. In this mode, the screen support 3' is equivalent to the force-applying party, and the flexible display module 1' is the force-receiving party. The flexible display module 1' is subjected to greater resistance during the unfolding and retracting process, especially during the retracting process, which leads to greater power consumption of the motor. Moreover, during the unfolding and retracting process, the flexible display module 1' is prone to wrinkles, which results in a poor user experience.

[0045] Figure 4 for Figure 1 Schematic diagram of the structure of the screen support in the curved part. Figure 4 As shown, in the motion mode in which the flexible display module 1' is driven by the screen support 3', the flexible display module 1' is subjected to tensile stress from the support bars 31', and each support bar 31' experiences stress concentration in area C. Because the screen support 3' is attached to the non-display side of the flexible display module 1', the adhesive between the screen support 3' and the flexible display module 1' may debond during the movement of the flexible display module 1', especially during the recycling process of the flexible display module 1'. The risk of debonding is greater at locations where stress is concentrated.

[0046] The embodiments of the present disclosure provide a flexible display device, comprising: a flexible display module, a track, a support member, a bracket, a motor slider and a movable housing; the flexible display module comprises a head end and a tail end arranged opposite to each other, and the head end of the flexible display module is fixed; the support member is located on the non-display side surface of the flexible display module, the support member is connected to the flexible display module and the track, and the support member can move under the drive of the track; the support member comprises a first support member and a tail support member, and the tail support member is connected to the tail end of the flexible display module; the bracket is located on a side of the tail support member away from the first support member, the bracket is connected to the tail support member, and is configured to provide tensile stress to the tail support member; the movable housing is connected to the track and is configured to drive the track to move; the motor slider is configured to drive the movable housing to move to achieve the expanded state of the flexible display module; the motor slider is also configured to drive the bracket to move to achieve the retracted state of the flexible display module.

[0047] The flexible display device provided by the disclosed embodiments utilizes a bracket disposed on a side of the rear support member away from the first support member. A motor slider drives the movable housing to deploy the flexible display module, while the motor slider drives the bracket to retract the flexible display module. The bracket applies tensile stress to the rear support member, ensuring the flexible display module remains flat. Furthermore, the flexible display device provided by the disclosed embodiments requires less driving force during the retraction of the flexible display module, thus conserving motor power.

[0048] 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.

[0049] In an exemplary embodiment, the tail support member and the bracket are connected by a sliding rod; an inclined sliding groove is provided on the bracket, and the extension direction of the inclined sliding groove intersects with the extension direction of the support member. One end of the sliding rod is connected to the tail support member, and the other end of the sliding rod can move in the inclined sliding groove.

[0050] In an exemplary embodiment, at least two sliding rods are provided between the tail support member and the bracket, and the at least two sliding rods are evenly distributed along the extension direction of the tail support member.

[0051] In an exemplary embodiment, the slide rod is connected to the inclined slide groove via a slider, and the slider is capable of moving in the inclined slide groove.

[0052] In an exemplary embodiment, the inclined slide includes a first position and a second position; when the flexible display module is in a retracted state, the slider is located at the first position; when the flexible display module is in an extended state, the slider is located at the second position.

[0053] In an exemplary embodiment, the movement of the slider in the inclined slide groove is synchronized with the movement of the flexible display module.

[0054] In an exemplary embodiment, during the movement of the flexible display module, in the unfolding direction of the flexible display module, the ratio of the movement distance of the tail end of the flexible display module to the movement distance of the sliding rod is 2:1.

[0055] In an exemplary embodiment, the movement distance of the sliding rod along the first direction is L1, the first direction is the unfolding direction of the flexible display module, and the second direction is perpendicular to the first direction; the length of the sliding rod is L2; the distance between the first position and the second position along the direction of the inclined slide groove is L3; the first angle between the extension direction of the inclined slide groove and the second direction is α1; when the slider is in the first position, the second angle between the extension direction of the sliding rod and the first direction is α2; the dimensions of each part satisfy the following relationship: (L1+L2*cosα2-L3*sinα1) 2 =(L2) 2 -(L2*sinα2-L3*cosα1) 2 .

[0056] In an exemplary embodiment, a card slot is provided on the track; the support member includes a support bar and card hooks located on both sides of the support bar; the support bar is connected to the non-display side surface of the flexible display module, and the card hook is connected to the card slot.

[0057] In an exemplary embodiment, the flexible display device further includes a fixed housing, the flexible display module is located in the fixed housing, and a head end of the flexible display module is fixed to the fixed housing.

[0058] Figure 5 FIG is a schematic diagram of the structure of the flexible display device in the retracted state according to an embodiment of the present disclosure. Figure 5 As shown, an embodiment of the present disclosure provides a flexible display device, including: a flexible display module 1, a track 2, a support, a motor slider 4, a bracket 5, a movable housing 8, and a fixed housing 10. The flexible display module 1 includes a flexible screen, one side of the flexible display module 1 is a display side surface, which can support the flexible display device to realize functions such as picture display and user interaction, and the opposite side surface of the flexible display module 1 is a non-display side surface. The flexible display module 1 can slide with the movement of the track 2 to realize the switching of the flexible display module 1 between the expanded state and the retracted state, thereby changing the screen display area of the flexible display device. Figure 5 As shown, the flexible display module 1 can be set in a fixed housing 10, and the side surface of the flexible display module 1 in the fixed housing 10 can be "U"-shaped. The flexible display module 1 includes a head end (i.e., one end of the "U" shape) and a tail end (i.e., the other end of the "U" shape) that are relatively set. The head end of the flexible display module is fixed, and the tail end of the flexible display module 1 can move in the direction of extending out of the fixed housing 10 to achieve an expanded state. In the expanded state of the flexible display module 1, the tail end of the flexible display module 1 still remains in the fixed housing 10, and the tail end of the flexible display module 1 can display or not display the picture. In the expanded state, the tail end of the flexible display module 1 can move in the direction of entering the fixed housing 10 to achieve a retracted state. A plurality of support members are provided on the non-display side surface of the flexible display module 1, and the extension direction of the support members can intersect with the expansion direction of the flexible display module 1. Figure 1As shown in , the extension direction of the support member is perpendicular to the expansion direction of the flexible display module 1, and the present disclosure does not impose any restrictions on this. A card slot 9 can be provided on the track 2, and the support member can be stuck in the card slot 9 to enable the support member to move with the movement of the track 2. The support member includes a first support member 33 and a tail support member 3. The support member located at the tail end of the flexible display module 1 is the tail support member 3. The other support members except the tail support member 3 can be called the first support member 33. The structure of the tail support member 3 and the first support member 33 can be the same, or, in the expansion direction along the flexible display module 1, the width of the tail support member 3 can be greater than the width of the first support member 33 to better provide support for the tail end of the flexible display module 1. The present disclosure does not impose any restrictions on this. The tail support member 3 is connected to the bracket 5, as shown in FIG. Figure 1 As shown, the bracket 5 is located on the side of the tail support member 3 away from the first support member 33, and can move with the movement of the flexible display module 1. The bracket 5 is configured to provide tensile stress to the tail support member 3 to ensure the force balance of the tail end of the flexible display module 1, which can avoid wrinkles in the flexible display module 1. During the movement of the flexible display module 1 switching between the expanded state and the retracted state, the bracket 5 can limit the movement of the tail end of the flexible display module 1, so that the movement process of the flexible display module 1 is smoother. The movable housing 8 is connected to the track 2 and is configured to drive the track 2 to move. The motor slider 4 is configured to drive the movable housing 8 to move to achieve the expanded state of the flexible display module 1; the motor slider 4 is also configured to drive the bracket 5 to move to achieve the retracted state of the flexible display module 1. In Figure 5 In the retracted state shown, the tail end of the flexible display module 1 can move in the direction of the hollow arrow to achieve switching to the expanded state. Figure 1 The unfolding process of the flexible display module 1 includes the following steps: the motor slider 4 moves in the direction of the hollow arrow, driving the movable housing 8 to move, which in turn drives the track 2, which in turn drives the support member, which in turn drives the flexible display module 1, which in turn drives the bracket 5 to unfold the flexible display module 1. Because the bracket 5 is connected to the rear support member 3, it can apply tensile stress to the rear end of the flexible display module 1, preventing wrinkles in the flexible display module 1 during movement.

[0059] In this exemplary embodiment, the motor slider 4 is not connected to the movable housing 8, nor is the motor slider 4 connected to the bracket 5. When the flexible display module 1 is unfolded, force is transmitted between the motor slider 4 and the movable housing 8, allowing the motor slider 4 to push the movable housing 8 to move. When the flexible display module 1 is retracted, force is transmitted between the motor slider 4 and the bracket 5, allowing the motor slider 4 to push the bracket 5 to move.

[0060] In an exemplary embodiment, the bracket 5 and the tail support member 3 can be connected by a sliding rod 6, an inclined sliding groove 7 can be set on the bracket 5, the extension direction of the inclined sliding groove 7 can intersect with the extension direction of the support member, one end of the sliding rod 6 can be connected to the tail support member 3, and the other end of the sliding rod 6 can move in the inclined sliding groove 7.

[0061] like Figure 5 As shown, two slide bars 6 are provided between the bracket 5 and the tail support 3. These two slide bars 6 can be evenly arranged along the extension direction of the tail support 3. This arrangement can make the tensile stress from the bracket 5 act more evenly on the tail end of the flexible display module 1, ensuring that the tail end of the flexible display module 1 is subjected to balanced force, which not only makes the movement of the flexible display module 1 smoother, but also better avoids the flexible display module 1 from wrinkling during movement. In practical applications, multiple slide bars 6 can be evenly arranged between the bracket 5 and the tail support 3 as needed, and the present disclosure is not limited to this. In other embodiments, the bracket 5 and the tail support 3 can be connected by other connection methods, and the present disclosure is not limited to this. In an exemplary embodiment, the slide bar 6 and the tail support 3 can be connected by a pin, and the other end of the slide bar 6 can be provided with a slider, which is connected to the inclined slide groove 7 and can move in the inclined slide groove 7, thereby realizing the connection between the bracket 5 and the tail support 3 using a slider push rod mechanism. In other embodiments, the sliding rod 6 and the tail support member 3 may be connected by other connection methods, and the sliding rod 6 and the inclined slide groove 7 may be connected by other connection methods, which is not limited in the present disclosure.

[0062] Figure 6 FIG is a schematic diagram of the structure of the flexible display device in the unfolded state according to an embodiment of the present disclosure. Figure 5 As shown, in the retracted state, the position of the slide rod 6 in the inclined slide groove 7 can be the first position, as shown in FIG. Figure 6As shown, in the unfolded state, the position of the slide bar 6 in the inclined slide groove 7 can be the second position. The first position can be one end of the inclined slide groove 7, the second position can be the extreme position of the slide bar 6 in the inclined slide groove 7 in the unfolded state, the second position can be the other end of the inclined slide groove 7, or it can be any position in the inclined slide groove 7. During the unfolding process of the flexible display module 1, the other end of the slide bar 6 moves synchronously from the first position to the second position along the inclined slide groove 7 to drive the bracket 5 to move, and the bracket 5 can provide tensile stress to the tail end of the flexible display module 1 through the slide bar 6. During the retraction process of the flexible display module 1, the other end of the slide bar 6 moves synchronously from the second position to the first position along the inclined slide groove 7, and the bracket 5 drives the slide bar 6 to move, thereby driving the flexible display module 1 to move, and the bracket 5 can provide tensile stress to the tail end of the flexible display module 1 through the slide bar 6. In other embodiments, the shape and extension direction of the inclined slide groove 7 can be set as needed, and the present disclosure is not limited to this. During the unfolding process, the slide bar 6 moves from the first position of the inclined slide groove 7 to the second position, and the bracket 5 can move along the unfolding direction of the flexible display module 1 under the drive of the slide bar 6. Under the continuous stretching of the slide bar 6, the flexible display module 1 can maintain a certain tension and always remain flat. Figure 6 In the unfolded state shown, the rear end of the flexible display module 1 can move in the direction of the hollow arrow to switch to the retracted state. Figure 6 The retraction process of the flexible display module 1 includes: the motor slider 4 moves in the direction of the hollow arrow, driving the bracket 5 to move, the bracket 5 drives the slide bar 6 to move in the inclined slide groove 7, the slide bar 6 drives the flexible display module 1 to move, the flexible display module 1 drives the support member to move, the support member drives the track 2 and the movable housing 8 to move, and the flexible display module 1 is retracted. In the retraction process, since it is the flexible display module 1 that drives the support member to move, the flexible display module 1 is the force-applying party and the support member is the force-receiving party, which is equivalent to the movement mode of "driving the line with the surface". The resistance encountered during the movement will be smaller, which helps to save the power consumption of the motor. After actual measurement, under the condition that other structures are the same, the driving force required to drive the flexible display module 1 to retract in this embodiment is less than Figure 1 The driving force required to retract the flexible display module 1' is reduced by 50%. Furthermore, the flexible display module 1, acting as a force-applying element, applies compressive stress to the support member. This compressive stress tightens the connection between the flexible display module 1 and the support member, avoiding the risk of debonding between the flexible display module 1 and the support member and helping to extend the service life of the flexible display device. In both the deployed and retracted states, the bracket 5 applies tensile stress to the rear of the flexible display module 1, maintaining a flat surface and facilitating rear-side display and touch control of the flexible display device.

[0063] In an exemplary embodiment, during the movement of the flexible display module 1, the ratio of the movement distance of the rear end of the flexible display module 1 to the movement distance of the slide bar 6 along the direction of deployment of the flexible display module 1 is 2 to 1. Along the direction of deployment of the flexible display module 1, the movement distance of the slide bar 6 is the same as the movement distance of the motor slider 4, both being half the movement distance of the rear end of the flexible display module 1. This design reduces the movement distance of the motor slider 4, helps save internal space of the flexible display device, and provides more possibilities for the internal design of the flexible display device. By setting the deployment length of the flexible display module 1 to be greater than, in other embodiments, the ratio of the movement distance of the rear end of the flexible display module 1 to the movement distance of the slide bar 6 along the direction of deployment of the flexible display module 1 can be set as needed, and this disclosure is not limited to this.

[0064] Figure 7 3 is a comparison diagram of the movement distances of the flexible display module and the sliding rod along the unfolding direction of the flexible display module in an exemplary embodiment, illustrating a cross-sectional schematic diagram of the flexible display device in the unfolded state and the retracted state. Figure 7 A on the upper side is a cross-sectional schematic diagram of the flexible display device in the retracted state. Figure 7 B at the bottom is a cross-sectional view of the flexible display device in the unfolded state, and the relevant components are simplified. The head end of the flexible display module 1 can be fixed on the fixed housing 10, such as Figure 7 As shown in A, during the switching process from the retracted state to the deployed state, the support member can drive the slide bar 6 to move in the direction of the hollow arrow to achieve deployment, as shown in FIG. Figure 7 As shown in FIG. 8B , during the switching process from the unfolded state to the retracted state, the slide bar 6 can drive the flexible display module 1 to move in the direction of the hollow arrow to achieve retraction. Figure 7 As shown, during the movement process of switching between the deployed state and the retracted state, the movement distance of the slide bar 6 along the deployed direction of the flexible display module 1 can be L1, and the movement distance of the tail end of the flexible display module 1 can be twice L1. The movement distance of the flexible display module 1 can be twice the movement distance of the slide bar 6. By providing the slide bar 6, the freedom of movement of the tail end of the flexible display module 1 along the thickness direction of the flexible display module 1 can be constrained, ensuring that the tail end of the flexible display module 1 moves along the deployed direction, preventing the tail end of the flexible display module 1 from tilting, and ensuring that the tail end of the flexible display module 1 is flat, which is conducive to realizing back display and back touch of the flexible display device.

[0065] Figure 8 The following is a structural comparison diagram of the slide bar in the extended state and the retracted state in the exemplary embodiment. Figure 8 Only part of the structure of the flexible display device is shown in FIG. Figure 8As shown, the first direction X can be the expansion direction of the flexible display module 1, and the second direction Y can be perpendicular to the first direction X. The length of the slide bar 6 can be L2, the first angle between the extension direction of the inclined slide groove 7 and the second direction Y can be α1, and the distance that the slide bar 6 moves in the inclined slide groove 7 can be L3, that is, the distance between the first position and the second position along the direction of the inclined slide groove 7 can be L3. In the retracted state, the slider is located at the first position of the inclined slide groove 7, and at this time, the second angle between the extension direction of the slide bar 6 and the first direction X can be α2. It is known that the movement distance of the slide bar 6 along the first direction X is L1, then the dimensional relationship of each part satisfies the following relationship:

[0066] (L1+L2*cosα2-L3*sinα1) 2 =(L2) 2 -(L2*sinα2-L3*cosα1) 2 .

[0067] 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: Flexible display module, track, support, bracket, motor slider and movable housing; The flexible display module includes a head end and a tail end that are arranged opposite to each other, and the head end of the flexible display module is fixed; The support member is located on the non-display side surface of the flexible display module and is configured to provide support for the flexible display module. The extension direction of the support member intersects with the unfolding direction of the flexible display module. The support member is connected to the flexible display module and the track, and the support member can move under the drive of the track. The support member includes a first support member and a tail support member, and the tail support member is connected to the tail end of the flexible display module. The bracket is located on a side of the tail support member away from the first support member, the bracket is connected to the tail support member, and is configured to provide tensile stress to the tail support member; The movable housing is connected to the track and is configured to drive the track to move; The motor slider is configured to drive the movable housing to move so as to realize the unfolded state of the flexible display module; the motor slider is also configured to drive the bracket to move so as to realize the retracted state of the flexible display module.

2. The flexible display device according to claim 1, wherein: The tail support member and the bracket are connected via a sliding rod; The bracket is provided with an oblique slide groove, the extension direction of which intersects with the extension direction of the support member, one end of the slide rod is connected to the tail support member, and the other end of the slide rod can move in the oblique slide groove.

3. The flexible display device according to claim 2, wherein: At least two sliding rods are provided between the tail support member and the bracket, and the at least two sliding rods are evenly distributed along the extension direction of the tail support member.

4. The flexible display device according to claim 2, wherein: The slide bar is connected to the inclined slide groove via a slider, and the slider can move in the inclined slide groove.

5. The flexible display device according to claim 4, wherein: The inclined slide includes a first position and a second position; when the flexible display module is in a retracted state, the slider is located at the first position; when the flexible display module is in an extended state, the slider is located at the second position.

6. The flexible display device according to claim 5, characterized in that: The movement of the slider in the inclined slide groove is synchronized with the movement of the flexible display module.

7. The flexible display device according to claim 6, wherein: During the movement of the flexible display module, in the unfolding direction of the flexible display module, the ratio of the movement distance of the tail end of the flexible display module to the movement distance of the sliding rod is 2:

1.

8. The flexible display device according to claim 7, wherein: The movement distance of the sliding rod along the first direction is L1, the first direction is the unfolding direction of the flexible display module, and the second direction is perpendicular to the first direction; the length of the sliding rod is L2; the distance between the first position and the second position along the direction of the inclined slide groove is L3; the first angle between the extension direction of the inclined slide groove and the second direction is α1; when the slider is in the first position, the second angle between the extension direction of the sliding rod and the first direction is α2; the dimensions of each part satisfy the following relationship: <h2 style=";text-align:left;direction:ltr">(L1+L2*cosα2-L3*sinα1)<h2 style=";text-align:left;direction:ltr"> 2 <h2 style=";text-align:left;direction:ltr"> (L2)<h2 style=";text-align:left;direction:ltr"> 2 <h2 style=";text-align:left;direction:ltr"> -(L2*sinα2-L3*cosα1)<h2 style=";text-align:left;direction:ltr"> 2 <h2 style=";text-align:left;direction:ltr"> 。 9. The flexible display device according to claim 1, wherein: The track is provided with a card slot; the support member includes a support bar and card hooks located on both sides of the support bar; The support bar is connected to the non-display side surface of the flexible display module, and the hook is connected to the slot.

10. The flexible display device according to claim 1, wherein: The flexible display device further includes a fixed housing, the flexible display module is located in the fixed housing, and the head end of the flexible display module is fixed on the fixed housing.

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