Display devices and wearable devices

Abstract

The invention relates to a display device and a wearable device, relating to the field of display technologies. The display device consists of: a body support assembly, rotatable support assemblies, and a flexible display panel. When the display device transitions between the unfolded and folded states, the rotatable support assemblies, positioned on either side of the body support assembly, rotate relative to each other in different directions under the influence of an external force. In this case, the flexible display panel is foldable in the second direction. Furthermore, during the transition between the unfolded and folded states, the first support rotates at a defined angle relative to the body support assembly, and the second support also rotates at a defined angle relative to the first support. In this case, the flexible display panel is folded in various ways under the actuation of the first and second supports.In this way, the display device supports various folding styles, which improves flexibility in use and enhances the user experience.

Description

Display devices and wearable devices Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device and a wearable device. Background Art

[0002] With the development of display technology, more and more display devices (such as smart watches) are equipped with foldable display screens. Display devices equipped with foldable display screens can realize the switching of the physical size of the display device, which greatly improves the user experience.

[0003] However, the folding form of current display devices equipped with foldable display screens is relatively simple, resulting in poor flexibility in the use of the display devices.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a display device and a wearable device. This can solve the problem in the prior art that display devices equipped with foldable display screens have a relatively single folding form. The technical solution is as follows:

[0006] In one aspect, a display device is provided, comprising:

[0007] Main support assembly;

[0008] two rotating support assemblies distributed on both sides of the main support assembly in a first direction, the rotating support assembly comprising: a first support portion and a second support portion, the first support portion being distributed between the main support assembly and the second support portion in the first direction, and the first support portion being rotatably connected to the second support portion and the main support assembly, respectively;

[0009] a flexible display panel, the back surface of which is connected to the main support assembly and the rotation support assembly respectively;

[0010] Wherein, during the switching of the display device between the unfolded state and the folded state, the angle at which the first support portion rotates relative to the main support assembly and the angle at which the second support portion rotates relative to the first support portion are both acute angles.

[0011] Optionally, the first support portion has a first sliding member and a second sliding member on both sides opposite to each other in the first direction, the main support assembly has a third sliding member rotatably connected to the first sliding member on the side facing the first support portion, and the second support portion has a fourth sliding member rotatably connected to the second sliding member on the side facing the first support portion.

[0012] Optionally, one of the first sliding member and the third sliding member is a first arc-shaped sliding plate, and the other is a first arc-shaped sliding groove; one of the second sliding member and the fourth sliding member is a second arc-shaped sliding plate, and the other is a second arc-shaped sliding groove;

[0013] Wherein, at least a portion of the first arc-shaped sliding plate is located in the first arc-shaped sliding groove, and at least a portion of the second arc-shaped sliding plate is located in the second arc-shaped sliding groove.

[0014] Optionally, the first arc-shaped chute and the second arc-shaped chute both have a chute opening for the corresponding arc-shaped slide to slide into, and a position-limiting blind end arranged opposite to the chute opening;

[0015] Wherein, after the display device is in the folded state, the end of the first curved slide abuts against the limiting blind end of the first curved slide groove, and / or the end of the second curved slide abuts against the limiting blind end of the second curved slide groove.

[0016] Optionally, the first support portion further comprises a first rotation limiter and a second rotation limiter on two sides opposite to each other in the first direction, the main body support assembly further comprises a third rotation limiter cooperating with the first rotation limiter on a side facing the first support portion, and the second support portion further comprises a fourth rotation limiter cooperating with the second rotation limiter on a side facing the first support portion;

[0017] Wherein, after the display device is in the unfolded state, the first rotation limiting member abuts against the third rotation limiting member, and / or the second rotation limiting member abuts against the fourth rotation limiting member.

[0018] Optionally, when the first sliding member is the first curved slide plate and the third sliding member is the first curved chute, the first rotation limiting member includes: a first limiting protrusion fixedly connected to an end portion of the first curved slide plate, and the third rotation limiting member includes: a second limiting protrusion fixed to an inner wall of the first curved chute;

[0019] And / or, when the second sliding member is the second arc-shaped slide plate and the fourth sliding member is the second arc-shaped slide groove, the second rotation limit member includes: a third limiting protrusion fixedly connected to the end of the second arc-shaped slide plate, and the fourth rotation limit member includes: a fourth limiting protrusion fixed on the inner wall of the second arc-shaped slide groove.

[0020] Optionally, one of the first rotation limiting member and the third rotation limiting member is a first limiting post, and the other is a third arcuate sliding groove, and at least a portion of the first limiting post is located in the third arcuate sliding groove;

[0021] And / or, one of the second rotation limiting member and the fourth rotation limiting member is a second limiting post, and the other is a fourth arcuate sliding groove, and at least a portion of the second limiting post is located in the fourth arcuate sliding groove;

[0022] Wherein, after the display device is in the expanded state, the first limiting post abuts against the first end of the third arc-shaped slide groove, and / or the second limiting post abuts against the first end of the fourth arc-shaped slide groove; after the display device is in the folded state, the first limiting post abuts against the second end of the third arc-shaped slide groove, and / or the second limiting post abuts against the second end of the fourth arc-shaped slide groove.

[0023] Optionally, the main body support assembly includes: a support base, and a first connecting plate fixedly connected to a side surface of the support base, and the first limiting column is fixedly connected to a side of the first connecting plate facing away from the support base;

[0024] The first support portion includes: a first support portion body, and a second connecting plate connected to a side surface of the first support portion body, the third arc-shaped sliding groove and the fourth arc-shaped sliding groove are respectively distributed on two opposite sides of the second connecting plate in the first direction;

[0025] The second support portion includes: a second support portion body, and a third connecting plate connected to a side surface of the second support portion body, and the second limiting column is fixedly connected to a side of the third connecting plate facing away from the second support portion body;

[0026] Among them, the support seat has the third sliding part on the side close to the first support part body, the first support part body has the first sliding part on the side close to the support seat, the first support part body has the second sliding part on the side close to the second support part body, and the second support part body has the fourth sliding part on the side close to the first support part body.

[0027] Optionally, the second connecting plate includes: an intermediate connecting plate, and a first edge connecting plate and a second edge connecting plate fixedly connected to two sides of the intermediate connecting plate, the intermediate connecting plate being arranged opposite to the first support portion body and connected to the first support portion body, the first edge connecting plate being located on a side of the first connecting plate facing away from the support seat, and the second edge connecting plate being located on a side of the third connecting plate facing away from the second support body;

[0028] Wherein, the third arc-shaped sliding groove is located on the first edge connecting plate, and the fourth arc-shaped sliding groove is located on the second edge connecting plate.

[0029] Optionally, the display device further comprises: a first torsion assembly respectively connected to a side of the first connecting plate facing away from the support base and a side of the first edge connecting plate facing the main body support assembly, the first torsion assembly being configured to provide a damping force when the first support portion rotates relative to the main body support assembly;

[0030] And / or, a second torsion assembly is respectively connected to the side of the third connecting plate away from the second support part body and the side of the second edge connecting plate toward the second support part, and the second torsion assembly is configured to provide a damping force when the second support part rotates relative to the first support part.

[0031] Optionally, the first torsion assembly includes: a first torsion protrusion fixedly connected to a side of the first connecting plate facing away from the support seat, and at least one second torsion protrusion fixedly connected to a side of the first edge connecting plate facing the main support assembly; during the process of switching the display device between the unfolded state and the folded state, one of the at least one second torsion protrusion always abuts against the first torsion protrusion, and the first torsion protrusion is capable of moving in the first direction relative to the second torsion protrusion;

[0032] And / or, the second torsion assembly includes: a third torsion protrusion fixedly connected to the side of the third connecting plate facing away from the second support portion body, and at least one fourth torsion protrusion fixedly connected to the side of the second edge connecting plate facing the second support portion; during the process of switching the display device between the unfolded state and the folded state, there is always a fourth torsion protrusion among the at least one fourth torsion protrusion that abuts against the third torsion protrusion, and the third torsion protrusion can move relative to the fourth torsion protrusion in the first direction.

[0033] Optionally, the first torsion protrusion has a first inclined surface and a second inclined surface arranged opposite to each other in the first direction, and the second torsion protrusion has a third inclined surface and a fourth inclined surface arranged opposite to each other in the first direction; during the switching of the display device between the unfolded state and the folded state, the first torsion protrusion first abuts against the second torsion protrusion by abutting the first inclined surface and the third inclined surface, and then abuts against the second torsion protrusion by abutting the second inclined surface and the fourth inclined surface;

[0034] And / or, the third torsion protrusion has a fifth inclined surface and a sixth inclined surface that are relatively arranged in the first direction, and the fourth torsion protrusion has a seventh inclined surface and an eighth inclined surface that are relatively arranged in the first direction; during the process of switching the display device between the unfolded state and the folded state, the third torsion protrusion first abuts against the fourth torsion protrusion by abutting the fifth inclined surface and the seventh inclined surface, and then abuts against the fourth torsion protrusion by abutting the sixth inclined surface and the eighth inclined surface.

[0035] Optionally, the main support assembly has a first mounting groove on a side facing away from the flexible display panel, and the first torsion assembly further comprises: a first elastic element located in the first mounting groove, a portion of the first torsion protrusion being located in the first mounting groove and another portion extending from the first mounting groove, one end of the first elastic element being fixedly connected to a bottom surface of the first mounting groove, and the other end of the first elastic element being fixedly connected to a portion of the first torsion protrusion located in the first mounting groove;

[0036] And / or, the second support portion has a second mounting groove on the side facing away from the flexible display panel, and the second torsion assembly also includes: a second elastic element located in the second mounting groove, a portion of the third torsion protrusion is located in the second mounting groove, and the other portion extends from the second mounting groove, one end of the second elastic element is fixedly connected to the bottom surface of the second mounting groove, and the other end of the second elastic element is fixedly connected to the portion of the third torsion protrusion located in the second mounting groove.

[0037] Optionally, the first torsion assembly further includes: a first foam fixed on the inner side wall of the first arc-shaped slide groove; and / or the second torsion assembly further includes: a second foam fixed on the inner side wall of the second arc-shaped slide groove.

[0038] Optionally, the display device also includes: a fixing rod and a third elastic element, the first end of the fixing rod is fixedly connected to the side of the first support part body, the intermediate connecting plate is sleeved on the fixing rod and slidably connected to the fixing rod, and the third elastic element is located between the intermediate connecting plate and the second end of the fixing rod.

[0039] Optionally, the flexible display panel includes: a driving backplane, a flat layer located on one side of the driving backplane, and a plurality of light-emitting devices located on a side of the flat layer away from the driving backplane, wherein the plurality of light-emitting devices are electrically connected to the driving backplane;

[0040] Wherein, the rotation axis center line of the first support portion when rotating relative to the main support component is located on the side of the flat layer away from the drive back plate, and the rotation axis center line of the second support portion when rotating relative to the first support portion is located on the side of the flat layer away from the drive back plate.

[0041] Optionally, the display device further comprises: a housing, the housing comprising: a first rigid housing connected to the main support assembly, a flexible housing connected to the first support portion, and a second rigid housing connected to the second support portion;

[0042] The flexible shell is located between the first rigid shell and the second rigid shell, and the flexible shell is connected to the first rigid shell and the second rigid shell respectively.

[0043] Optionally, the housing includes: a covering member, a middle frame, and a bottom plate arranged in a direction perpendicular to the display surface of the flexible display panel;

[0044] The middle frame is connected to the main support assembly and the two rotating support assemblies, the bottom plate is connected to the side of the middle frame facing away from the flexible display panel, the covering is located on the side of the flexible display panel facing away from the middle frame, and the covering covers the non-display area of ​​the flexible display panel.

[0045] Optionally, the bottom plate has an opening on a side facing away from the flexible display panel, and the display device further comprises: a vital sign monitoring module located in the housing, and at least a portion of the vital sign monitoring module is exposed from the opening.

[0046] In another aspect, a wearable device is provided, comprising:

[0047] A display device, and a watch strap detachably connected to the display device, wherein the display device is any one of the display devices given above.

[0048] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0049] A display device may include: a main support assembly, two rotating support assemblies, and a flexible display panel. By providing the main support assembly and two rotating support assemblies distributed on both sides of the main support assembly along a first direction in the display device, when the display device switches between an unfolded state and a folded state, the rotating support assemblies distributed on both sides of the main support assembly can rotate relative to each other in different directions under the action of an external force. In this case, the flexible display panel in the display device can be folded or unfolded in a second direction (the second direction can be perpendicular to the first direction) driven by the rotating support assemblies. In addition, during the switching between the unfolded state and the folded state of the display device, the first support portion of one rotating support assembly can rotate a certain angle relative to the main support assembly, and the second support portion can also rotate a certain angle relative to the first support portion. In this case, the flexible display panel can be folded into different shapes driven by the first support portion and the second support portion. In this way, the display device equipped with the flexible display panel in the present application has a variety of different folding shapes, making the display device more flexible to use and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0051] FIG1 is a schematic structural diagram of a display device provided in an embodiment of the present application;

[0052] FIG2 is an exploded schematic diagram of a partial structure of the display device shown in FIG1 ;

[0053] FIG3 is a schematic diagram of a partial structure of the display device shown in FIG2 ;

[0054] FIG4 is an exploded schematic diagram of a first support portion and a main support assembly in a rotation support assembly provided in an embodiment of the present application;

[0055] FIG5 is a schematic diagram showing the connection between a main support assembly, a first support portion, and a second support portion provided in an embodiment of the present application;

[0056] FIG6 is a schematic diagram showing the connection between the main support assembly and the rotation support assembly when a display device provided by an embodiment of the present application is in a folded state;

[0057] FIG7 is a schematic diagram showing the connection between another rotation support assembly, a first support portion, and a second support portion provided in an embodiment of the present application;

[0058] FIG8 is an exploded schematic diagram of a partial structure of a display device provided in an embodiment of the present application;

[0059] FIG9 is a schematic diagram of the folding effect of the display device shown in FIG8;

[0060] FIG10 is a schematic diagram of the assembly of the display device shown in FIG8;

[0061] FIG11 is a schematic diagram of a partial structure of another display device provided in an embodiment of the present application;

[0062] FIG12 is a schematic diagram of a partial structure of another display device provided in an embodiment of the present application;

[0063] FIG13 is a partial structural top view of a display device provided in an embodiment of the present application;

[0064] FIG14 is a schematic diagram showing the effect of separation of a first torsional protrusion and a second torsional protrusion provided in an embodiment of the present application;

[0065] FIG15 is a schematic diagram showing the connection between a first torsion protrusion and a plurality of second torsion protrusions when a display device provided by an embodiment of the present application is in a flat state;

[0066] FIG16 is a schematic diagram showing the connection between a first torsion protrusion and a plurality of second torsion protrusions when a display device provided by an embodiment of the present application is in a folded state;

[0067] FIG17 is a partial structural top view of another display device provided in an embodiment of the present application;

[0068] FIG18 is a schematic diagram of a partial structure of a display device provided by another embodiment of the present application;

[0069] FIG19 is a side view of a display device with a flexible display panel unfolded according to an embodiment of the present application;

[0070] FIG20 is a schematic diagram of a film structure of a flexible display panel provided in an embodiment of the present application;

[0071] FIG21 is an exploded schematic diagram of a display device provided in an embodiment of the present application;

[0072] FIG22 is an exploded schematic diagram of the housing in FIG21 ;

[0073] FIG23 is a schematic structural diagram of a wearable device provided in an embodiment of the present application;

[0074] FIG24 is a schematic diagram of a partial structure of a wearable device provided in an embodiment of the present application;

[0075] FIG25 is a schematic diagram showing the connection between the watch strap and the display device in FIG24 .

[0076] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0077] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0078] Please refer to Figures 1, 2, and 3. Figure 1 is a schematic diagram of the structure of a display device provided in an embodiment of the present application. Figure 2 is an exploded schematic diagram of a portion of the display device shown in Figure 1. Figure 3 is a schematic diagram of the portion of the display device shown in Figure 2. The display device can be any product with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, navigator, or the device body of a wearable device. The display device can include a main support assembly 100, two rotating support assemblies 200, and a flexible display panel 300.

[0079] The two rotating support assemblies 200 in the display device can be distributed on both sides of the main support assembly 100 in the first direction f1. The rotating support assembly 200 can include: a first support portion 201 and a second support portion 202. The first support portion 201 can be distributed between the main support assembly 100 and the second support portion 202 in the first direction f1, and the first support portion 201 can be rotatably connected to the second support portion 202 and the main support assembly 100 respectively. It should be noted that in other possible implementations, the rotating support assembly 200 can also include: at least one auxiliary support portion (not shown in the figure) located on the side of the second support portion 202 away from the first support portion 201, and the auxiliary support portion can be rotatably connected to the second support portion. When there are multiple auxiliary support portions, the multiple auxiliary support portions can be rotatably connected in sequence.

[0080] The back surface of the flexible display panel 300 in the display device can be connected to the main support assembly 100 and the rotation support assembly 200. It should be noted that the back surface of the flexible display panel is the side opposite to the display surface of the flexible display panel.

[0081] When the display device switches between the unfolded state and the folded state, the angle at which the first support portion 201 rotates relative to the main support assembly 100 and the angle at which the second support portion 202 rotates relative to the first support portion 201 may both be acute angles.

[0082] In an embodiment of the present application, a main support assembly 100 and two rotating support assemblies 200 distributed on both sides of the main support assembly 100 along a first direction f1 are provided in the display device. When the display device switches between the unfolded state and the folded state, the rotating support assemblies 200 distributed on both sides of the main support assembly 100 can rotate relative to each other in different directions under the action of an external force. At this time, the flexible display panel 300 in the display device can be folded or unfolded in a second direction (the second direction can be perpendicular to the first direction) under the driving action of the rotating support assembly 200. In addition, during the switching process between the unfolded state and the folded state of the display device, the first support portion 201 in one rotating support assembly 200 can rotate a certain angle relative to the main support assembly 100, and the second support portion 202 can also rotate a certain angle relative to the first support portion 201. At this time, the flexible display panel 300 can also be folded into different forms under the driving action of the first support part 201 and the second support part 202. In this way, the display device equipped with the flexible display panel 300 in this application has a variety of different folding forms, which makes the display device more flexible to use and improves the user experience.

[0083] For example, when the display device is in the unfolded state, the side of the main support assembly 100 facing the flexible display panel 300 can be flush with the side of the rotation support assembly 200 facing the flexible display panel 300. When the display device switches from the unfolded state to the folded state, the direction in which the first support portion 201 of a rotation support assembly 200 rotates relative to the main support assembly 100 can be the same as the direction in which the second support portion 202 rotates relative to the first support portion 201. It should be noted that the basic structural components and movement principles of the rotation support assemblies 200 distributed on opposite sides of the main support assembly 100 are the same, and reference can be made to the above description of the rotation support assembly, which will not be repeated here.

[0084] In summary, an embodiment of the present application provides a display device that may include: a main support assembly, two rotating support assemblies, and a flexible display panel. By providing a main support assembly and two rotating support assemblies distributed on both sides of the main support assembly along a first direction in the display device, when the display device switches between an unfolded state and a folded state, the rotating support assemblies distributed on both sides of the main support assembly can rotate relative to each other in different directions under the action of an external force. At this time, the flexible display panel in the display device can be folded or unfolded in a second direction (the second direction can be perpendicular to the first direction) under the action of the rotating support assembly. In addition, during the process of switching between the unfolded state and the folded state of the display device, the first support portion of one rotating support assembly can rotate a certain angle relative to the main support assembly, and the second support portion can also rotate a certain angle relative to the first support portion. At this time, the flexible display panel can also be folded into different shapes under the action of the first support portion and the second support portion. In this way, the display device equipped with a flexible display panel in the present application has a variety of different folding shapes, making the display device more flexible to use and improving the user experience.

[0085] Alternatively, please refer to Figures 4 and 5. Figure 4 is an exploded view of the first support portion and the main support portion in a rotation support assembly provided in an embodiment of the present application, and Figure 5 is a schematic diagram of the connection between the main support assembly, the first support portion, and the second support portion provided in an embodiment of the present application. The first support portion 201 in the rotation support assembly 200 can have a first sliding member 201a and a second sliding member 201b on opposite sides of the first support portion 201, respectively. The main support assembly 100 can have a third sliding member 100a rotatably connected to the first sliding member 201a on the side facing the first support portion 201, and the second support portion 202 can have a fourth sliding member 202a rotatably connected to the second sliding member 201b on the side facing the first support portion 201. In this case, the first sliding member 201a and the second sliding member 201b are respectively provided on opposite sides of the first support portion 201, and the third sliding member 100a is provided on the side of the main support assembly 100 facing the first support portion 201, and the fourth sliding member 202a is provided on the side of the second support portion 202 facing the first support portion 201. In this manner, the first slider 201a and the third slider 100a cooperate to achieve relative rotation between the first support portion 201 and the main support assembly 100, while the second slider 201b and the fourth slider 202a cooperate to achieve relative rotation between the second support portion 201 and the first support portion 201. In the present application, along the second direction f2, the first support portion 201 facing the main support assembly 100 may have two first sliders 201a, and the first support portion 201 facing the second support portion 202 may have two second sliders 201b. Along the second direction f2, the main support assembly 100 facing the first support portion 201 may have two third sliders 100a, and the second support portion 202 facing the first support portion 201 may have two fourth sliders 202a. This further improves the rotational stability of the first support portion 201 relative to the main support assembly 100, and the rotational stability of the second support portion 202 relative to the first support portion 201.

[0086] In an embodiment of the present application, as shown in FIG5 , one of the first sliding member 201a on the first support portion 201 and the third sliding member 100a on the main support assembly 100 can be a first curved slide plate A1, and the other can be a first curved chute A2. One of the second sliding member 201b on the first support portion 201 and the fourth sliding member 202a on the second support portion 202 can be a second curved slide plate A3, and the other can be a second curved chute A4. At least a portion of the first curved slide plate A1 can be located within the first curved chute A2, and at least a portion of the second curved slide plate A3 can be located within the second curved chute A4. In this case, the coordination of the curved slide plates and the curved chute can conveniently achieve the rotation of the first support portion 201 relative to the main support assembly 100, and the rotation of the second support portion 202 relative to the first support portion 201. It should be noted that the embodiments of the present application are schematically illustrated by taking the first sliding member 201a as the first curved slide A1, the third sliding member 100a as the first curved groove A2; the second sliding member 201b as the second curved slide A3, and the fourth sliding member 202a as the second curved groove A4 as examples.

[0087] Optionally, please refer to Figures 5 and 6. Figure 6 is a schematic diagram of the connection between the main support assembly and the rotation support assembly when a display device provided in an embodiment of the present application is in a folded state. The first curved chute A2 and the second curved chute A4 can both have a chute opening a1 for the corresponding curved slide to slide into, and a limiting blind end a2 arranged opposite to the chute opening a1. Specifically, after the display device is in the folded state, the end of the first curved slide A1 can abut against the limiting blind end a2 of the first curved chute A2, and / or the end of the second curved slide A3 can abut against the limiting blind end a2 of the second curved chute A4. For example, the rotation of the first support portion 201 relative to the main support assembly 100 is used as an example for schematic illustration: during the switching process of the display device from the unfolded state to the folded state, the first curved slide A1 on the first support portion 201 can slide within the first curved chute A2 toward the limit blind end a2 of the first curved chute A2, and after rotating to the target angle, the end of the first curved slide A1 can abut against the limit blind end a2 of the first curved chute A2. In this way, excessive rotation of the first support portion 201 can be prevented, and the limit blind end a2 of the first curved chute A2 facing the side of the flexible display panel 300 can effectively support the flexible display panel 300.

[0088] In an embodiment of the present application, please refer to FIG7 , which is a schematic diagram illustrating the connection between another rotation support assembly, a first support portion, and a second support portion provided in an embodiment of the present application. The first support portion 201 in the rotation support assembly 200 may further include a first rotation limiter 201c and a second rotation limiter 201d on opposite sides thereof in the first direction f1. The main support assembly 100 may further include a third rotation limiter 100b on the side facing the first support portion 201 that cooperates with the first rotation limiter 201c, and the second support portion 202 may further include a fourth rotation limiter 202b on the side facing the first support portion 201 that cooperates with the second rotation limiter 201d. When the display device is in the unfolded state, the first rotation limiter 201c may abut against the third rotation limiter 100b, and / or the second rotation limiter 201d may abut against the fourth rotation limiter 202b. For example, when the display device is in the unfolded state, the side of the main support assembly 100 facing the flexible display panel 300 and the side of the rotation support assembly 200 facing the flexible display panel 300 can be flush, allowing the flexible display panel 300 to be in a flattened state. The first support portion 201 and the main support assembly 100 can be restrained in the flattened state through the abutment of the first rotation limiter 201c and the third rotation limiter 100b; the second support portion 202 and the first support portion 201 can be restrained in the flattened state through the abutment of the second rotation limiter 201d and the fourth rotation limiter 202b. This effectively prevents the display device from folding back, ensuring the reliability of the display device.

[0089] There are multiple optional implementations for the structural forms of the first rotation limiter and the third rotation limiter, as well as the structural forms of the second rotation limiter and the fourth rotation limiter in the present application. The following embodiments of the present application are schematically described using the following two optional implementations as examples:

[0090] In a first optional implementation, as shown in FIG7 , where the first sliding member 201a is a first curved slide plate A1 and the third sliding member 100a is a first curved slot A2, the first rotation-limiting member 201c may include a first limiting protrusion b1 fixedly connected to the end of the first curved slide plate A1, and the third rotation-limiting member 100b may include a second limiting protrusion b2 fixed to the inner wall of the first curved slot A2. And / or, where the second sliding member 201b is a second curved slide plate A3 and the fourth sliding member 202a is a second curved slot A4, the second rotation-limiting member 201d may include a third limiting protrusion b3 fixedly connected to the end of the second curved slide plate A3, and the fourth rotation-limiting member 202b may include a fourth limiting protrusion b4 fixed to the inner wall of the second curved slot A4. For example, the sliding connection between the second slider 201b and the fourth slider 202a is used as an example for schematic description: when the display device switches from the folded state to the unfolded state, the second curved slide A3 drives the third limiting protrusion b3 to move toward the fourth limiting protrusion b4 in the second curved slide groove A4; and when the display device rotates to the flattened state, one side of the third limiting protrusion b3 can abut against one side of the fourth limiting protrusion b4 to achieve positioning in the flattened state. It should be noted that the limiting principle of the first slider 201a and the third slider 100a via the first limiting protrusion b1 and the second limiting protrusion b2 can refer to the limiting principle of the second slider 201b and the fourth slider 202a described above, and will not be repeated here.

[0091] Regarding a second optional implementation, please refer to Figures 8 and 9. Figure 8 is an exploded schematic diagram of a partial structure of a display device provided in an embodiment of the present application, and Figure 9 is a schematic diagram of the display device shown in Figure 8 after folding. One of the first rotation limiter 201c and the third rotation limiter 100b may be a first limiter post c1, and the other may be a third curved groove c2. At least a portion of the first limiter post c1 may be located within the third curved groove c2. Alternatively, one of the second rotation limiter 201d and the fourth rotation limiter 202b may be a second limiter post c3, and the other may be a fourth curved groove c4. At least a portion of the second limiter post c3 may be located within the fourth curved groove c4. When the display device is in the unfolded state, the first limiter post c1 may abut against the first end of the third curved groove c2, and / or the second limiter post c3 may abut against the first end of the fourth curved groove c4. When the display device is in the folded state, the first limiting post c1 can abut against the second end of the third curved groove c2, and / or the second limiting post c3 can abut against the second end of the fourth curved groove c4. It should be noted that the following embodiments are all illustrated by taking the third rotation limiting member 100b as the first limiting post c1, the first rotation limiting member 201c as the third curved groove c2, the second rotation limiting member 201d as the fourth curved groove c4, and the fourth rotation limiting member 202b as the second limiting post c3 as an example.

[0092] For example, the process of the first support portion 201 rotating relative to the main support assembly 100 is used as an example to schematically illustrate: during the transition of the display device from the folded state to the unfolded state, the first end of the third curved slot c2 gradually approaches the first limiting post c1. After the display device is in the flattened state, the first limiting post c1 can abut the first end of the third curved slot c2 to achieve positional restraint in the flattened state. During the transition of the display device from the unfolded state to the folded state, the second end of the third curved slot c2 gradually approaches the first limiting post c1. After the display device is folded to the target angle, the first limiting post c1 abuts the second end of the third curved slot c2 to prevent excessive rotation. It should be noted that the principle of restraint by which the second support portion 202 rotates relative to the first support portion 201 through the second limiting post c3 and the fourth curved slot c4 can refer to the restraint principle described above for the first support portion 201 and the main support assembly 100, and will not be repeated here.

[0093] Alternatively, please refer to Figures 8 and 10. Figure 10 is a schematic assembly diagram of the display device shown in Figure 8. The main support assembly 100 in the display device may include: a support base 101, and a first connecting plate 102 fixedly connected to a side of the support base 101. The first limiting column c1 may be fixedly connected to a side of the first connecting plate 102 facing away from the support base 101. The first support portion 201 in the rotation support assembly 200 may include: a first support portion body 2011, and a second connecting plate 2012 fixedly connected to a side of the first support portion body 2011. The third arcuate groove c2 and the fourth arcuate groove c4 may be respectively distributed at opposite ends of the second connecting plate 2012 in the first direction f1. The second support portion 202 in the rotation support assembly 100 may include: a second support portion body 2021, and a third connecting plate 2022 fixedly connected to a side of the second support portion body 2021. The second limiting column c3 may be fixedly connected to a side of the third connecting plate 2022 facing away from the second support portion body 2021. The support base 101 may have a third sliding member 100a on the side close to the first support body 2011, the first support body 2011 may have a first sliding member 201a on the side close to the support base 101, the first support body 2011 may have a second sliding member 201b on the side close to the second support body 2021, and the second support body 2021 may have a fourth sliding member 202a on the side close to the first support body 2011. In this way, the first connecting plate 102 can block the side of the first curved groove A2 provided on the support base 101, so as to limit the first curved slide plate A1 on the first support body 2011 within the first curved groove A2; the third connecting plate 2022 can block the side of the second curved groove A4 on the second support body 2021, so as to limit the second curved slide plate A3 on the first support body 2011 within the second curved groove A4.

[0094] For example, as shown in FIG8 , the side surface of the support base 101 may have a screw hole d1 and two positioning holes d2 located on both sides of the screw hole d1; the side of the first connecting plate 102 facing the support base 101 may have two positioning posts d3 corresponding one-to-one to the two positioning holes d2, and a through hole d4 corresponding to the screw hole d1, and at least a portion of the positioning post d3 can be located within the corresponding positioning hole d2. In this way, after the screw d5 is passed through the through hole d4 on the first connecting plate 102, it can be threadedly connected to the screw hole d1 on the side surface of the support base 101, and the coordination of the positioning post d3 and the positioning hole d2 increases the assembly accuracy of the first connecting plate 102 and the support base 101. For example, one of the two positioning holes d2 can be a waist-shaped hole, which increases the convenience of assembling the first connecting plate 102 and the support base 101. The side of the second support body 2021 may have a screw hole d6 and two positioning holes d7 on either side of the screw hole d6. The side of the third connecting plate 2022 facing the second support body 2021 may have two positioning posts d8 corresponding to the two positioning holes d7, and through holes d9 corresponding to the screw holes d6. At least a portion of the positioning posts d8 can be positioned within the corresponding positioning holes d7. In this way, screws d10 passing through the through holes d9 in the third connecting plate 2022 can be threadedly connected to the screw holes d6 on the side of the second support body 2021. The coordination of the positioning posts d8 and the positioning holes d7 increases the assembly precision of the third connecting plate 2022 and the second support body 2021.

[0095] In the embodiment of the present application, please refer to Figures 8 and 11. Figure 11 is a partial structural diagram of another display device provided in the embodiment of the present application. The second connecting plate 2012 in the first support portion 201 may include: an intermediate connecting plate B1, and a first edge connecting plate B2 and a second edge connecting plate B3 fixedly connected on both sides respectively arranged opposite to the intermediate connecting plate B1. The intermediate connecting plate B1 can be arranged opposite to the first support portion body 2011 and can be connected to the first support portion body 2011. The first edge connecting plate B2 can be located on the side of the first connecting plate 102 away from the support seat 101, and the second edge connecting plate B3 can be located on the side of the third connecting plate 2022 away from the second support portion body 2021. Among them, the third arc-shaped slide c2 can be located on the first edge connecting plate B2, and the fourth arc-shaped slide c4 can be located on the second edge connecting plate B3.

[0096] In actual applications, in order to provide a certain damping effect or self-hovering capability during the switching between the unfolded state and the folded state of the display device, the display device may further include: a first torsion assembly 400 respectively connected to the side of the first connecting plate 102 facing away from the support base 101 and the side of the first edge connecting plate B2 facing toward the main support assembly 100, wherein the first torsion assembly 400 may be configured to provide a damping force when the first support portion 201 rotates relative to the main support assembly 100. And / or a second torsion assembly 500 respectively connected to the side of the third connecting plate 2022 facing away from the second support portion body 2021 and the side of the second edge connecting plate B3 facing toward the second support portion 202, wherein the second torsion assembly 500 may be configured to provide a damping force when the second support portion 202 rotates relative to the first support portion 201.

[0097] In the embodiment of the present application, please refer to Figures 12 and 13, Figure 12 is a schematic diagram of the partial structure of another display device provided in the embodiment of the present application, and Figure 13 is a top view of the partial structure of a display device provided in the embodiment of the present application. The first torsion assembly 400 may include: a first torsion protrusion 401 fixedly connected to the side of the first connecting plate 102 facing away from the support seat 101, and at least one second torsion protrusion 402 fixedly connected to the side of the first edge connecting plate B2 facing the main support assembly 100. During the process of switching the display device between the unfolded state and the folded state, there is always one second torsion protrusion 402 among the at least one second torsion protrusion 402 that abuts against the first torsion protrusion 401, and the first torsion protrusion 401 can move relative to the second torsion protrusion 402 in the first direction f1.

[0098] And / or, the second torsion assembly 500 may include: a third torsion protrusion 501 fixedly connected to a side of the third connecting plate 2022 facing away from the second support portion body 2021, and at least one fourth torsion protrusion 502 fixedly connected to a side of the second edge connecting plate B3 facing the second support portion 202. During the process of switching the display device between the unfolded state and the folded state, one of the at least one fourth torsion protrusion 502 is always in contact with the third torsion protrusion 501, and the third torsion protrusion 501 is movable relative to the fourth torsion protrusion 502 in the first direction f1.

[0099] For example, the rotation process of the first support portion 201 relative to the main support assembly 100 is used as an example for schematic description: when the display device is in a flattened state, as shown in FIG13 , the first torsion protrusion 401 can abut against the second torsion protrusion 402 closest to the first torsion protrusion 401 among the at least one second torsion protrusion 402. At this time, the display device can be stably maintained in the flattened state by the interaction force between the first torsion protrusion 401 and the second torsion protrusion 402. When the display device needs to be folded, an external force can be applied to the first support portion 201 so that the external force overcomes the interaction force between the first torsion protrusion 401 and the second torsion protrusion 402 and rotates. It should be noted that, please refer to FIG14 , which is a schematic diagram of the effect of separation of the first torsion protrusion and the second torsion protrusion provided in an embodiment of the present application. When the number of the second torsion protrusions 402 is one, after the first support portion 201 rotates a certain angle relative to the main support assembly 100, the first torsion protrusion 401 separates from the second torsion protrusion 402, and at this time, the first support portion 201 and the main support assembly 100 are in a free rotation state. Please refer to Figures 15 and 16. Figure 15 is a schematic diagram of the connection between the first torsion protrusion and multiple second torsion protrusions when a display device provided in an embodiment of the present application is in a flattened state, and Figure 16 is a schematic diagram of the connection between the first torsion protrusion and multiple second torsion protrusions when a display device provided in an embodiment of the present application is in a folded state. When the number of the second torsion protrusions 402 is multiple, the first torsion protrusion 401 and each second torsion protrusion 402 can abut against each other in sequence, thereby achieving hovering at different angles. It should be noted that the principle of achieving damping between the second support portion 202 and the first support portion 201 through the cooperation of the third torsion protrusion 501 and the fourth torsion protrusion 502 can be referred to the above description of the first torsion protrusion and the second torsion protrusion, which will not be repeated here.

[0100] Optionally, as shown in FIG15 , the first torsion protrusion 401 in the first torsion assembly 400 may have a first inclined surface e1 and a second inclined surface e2 disposed oppositely in the first direction f1, and the second torsion protrusion 402 may have a third inclined surface e3 and a fourth inclined surface e4 disposed oppositely in the first direction f1. During the switching of the display device between the unfolded state and the folded state, the first torsion protrusion 401 may first abut against the second torsion protrusion 402 by abutting the first inclined surface e1 and the third inclined surface e3, and then abut against the second torsion protrusion 402 by abutting the second inclined surface e2 and the fourth inclined surface e4. Alternatively, the third torsion protrusion 501 in the second torsion assembly 500 may have a fifth inclined surface and a sixth inclined surface disposed oppositely in the first direction f1 (not shown in the figure, but can be seen in conjunction with FIG13 and FIG15 ), and the fourth torsion protrusion 502 may have a seventh inclined surface and an eighth inclined surface disposed oppositely in the first direction f1. During the process of switching the display device between the unfolded state and the folded state, the third torsion protrusion 501 can first abut against the fourth torsion protrusion 502 by abutting the fifth inclined surface and the seventh inclined surface, and then abut against the fourth torsion protrusion 502 by abutting the sixth inclined surface and the eighth inclined surface e8.

[0101] The rotation of the first support portion 201 relative to the main support assembly 100 is used as an example for schematic explanation: as shown in Figure 15, when the display device is in a flattened state, the first inclined surface e1 in the first torsion protrusion 401 and the third inclined surface e3 in the second torsion protrusion 402 fit together; during the bending process of the display device, as shown in Figure 16, in the process of applying external force to the first support portion 201, the third inclined surface e3 in the second torsion protrusion 402 gradually slides along the first inclined surface e1; after the top of the second torsion protrusion 402 contacts the top of the first torsion protrusion 401, in the process of continuing to bend, the fourth inclined surface e4 on the second torsion protrusion 402 fits together with the second inclined surface e2 on the first torsion protrusion 401, and the fourth inclined surface e4 gradually slides along the second inclined surface e2. It should be noted that the principle of achieving damping between the second support portion 202 and the first support portion 201 through the cooperation of the third torsion protrusion 501 and the fourth torsion protrusion 502 can be referred to the above description of the first torsion protrusion and the second torsion protrusion, which will not be repeated here.

[0102] In other possible implementations, please refer to Figure 17, which is a partial structural top view of another display device provided in an embodiment of the present application. The side of the main support assembly 100 facing away from the flexible display panel 300 may have a first mounting groove 100c, and the first torsion assembly 400 also includes: a first elastic element 403 located in the first mounting groove 100c, a portion of the first torsion protrusion 401 may be located in the first mounting groove 100c, and another portion may extend from the first mounting groove 100c, and one end of the first elastic element 403 may be fixedly connected to the bottom surface of the first mounting groove 100c, and the other end of the first elastic element 100c may be fixedly connected to the portion of the first torsion protrusion 401 located in the first mounting groove 100c. It should be noted that the morphology of the first torsion protrusion and the second torsion protrusion shown in Figure 17 can refer to that shown in Figure 15.

[0103] And / or, the second support portion 202 may have a second mounting groove on a side facing away from the flexible display panel 300 (not shown in the figure, refer to the structure of the first mounting groove in Figure 17), and the second torsion assembly 500 may further include: a second elastic element positioned within the second mounting groove, a portion of the third torsion protrusion 501 may be positioned within the second mounting groove, and another portion may extend from the second mounting groove. One end of the second elastic element may be fixedly connected to the bottom surface of the second mounting groove, and the other end of the second elastic element 503 may be fixedly connected to the portion of the third torsion protrusion 501 positioned within the second mounting groove.

[0104] For example, the first elastic element 403 and the first torsion protrusion 401 arranged on the side of the main support component 100 away from the flexible display panel 300, and the cooperation with the second torsion protrusion 402 to achieve damping when the first support part 201 and the main support component 100 rotate are used as an example for schematic description: when the display device is in a flattened state, the first torsion protrusion 401 can abut against the second torsion protrusion 402 of at least one second torsion protrusion 402 closest to the first torsion protrusion 401. At this time, the first elastic element 403 can be compressed through the interaction force between the first torsion protrusion 401 and the second torsion protrusion 402, and then under the reaction force generated by the first elastic element 403, further supporting force is provided for the first torsion protrusion 401 and the second torsion protrusion 402, so that the display device can be stably maintained in the flattened state. When the display device needs to be folded, an external force can be applied to the first support portion 201 so that the external force overcomes the interaction force between the first torsion protrusion 401 and the second torsion protrusion 402, causing rotation. It should be noted that when there is only one second torsion protrusion 402, after the first support portion 201 rotates a certain angle relative to the main support assembly 100, the first torsion protrusion 401 separates from the second torsion protrusion 402, and the first support portion 201 and the main support assembly 100 are in a free rotation state. When there are multiple second torsion protrusions 402, the first torsion protrusion 401 can abut against each second torsion protrusion 402 in sequence, and the first elastic element 403 is compressed and relaxed in sequence during this process, thereby also achieving damping at different angles. It should be noted that the principle of achieving damping between the second support part 202 and the first support part 201 through the second elastic element 503, the third torsion protrusion 501 and the fourth torsion protrusion 502 can be referred to the above description of the first elastic element 403, the first torsion protrusion 401 and the second torsion protrusion 402, and will not be repeated here.

[0105] In an embodiment of the present application, please refer to Figure 18, which is a schematic diagram of a partial structure of a display device provided in another embodiment of the present application. The first torsion assembly 400 may further include: a first foam 404 fixed to the inner sidewall of the first curved chute A2; and / or the second torsion assembly 500 may further include: a second foam 504 fixed to the inner sidewall of the second curved chute A4. In this case, by providing foam within the curved chute, the friction between the curved slide and the foam further provides a damping effect for the relative rotation between the first support portion 201 and the main support assembly 100, and the relative rotation between the second support portion 202 and the first support portion 201. It should be noted that only one second torsion protrusion can be provided in combination with the first foam to achieve a damping effect between the first support portion and the main support assembly. Alternatively, only one fourth torsion protrusion can be provided in combination with the second foam to achieve a damping effect between the second support portion and the first support portion.

[0106] Optionally, as shown in Figures 8, 10, and 13, the display device may further include: a fixing rod 600 and a third elastic element 700. The first end of the fixing rod 600 may be fixedly connected to the side surface of the first support body 2011. The intermediate connecting plate B1 of the second connecting plate 2012 may be sleeved on the fixing rod 600 and slidably connected to the fixing rod 600. The third elastic element 700 may be located between the intermediate connecting plate B1 and the second end of the fixing rod 600. In this case, the intermediate connecting plate B1 of the second connecting plate 2012 is sleeved on the fixing rod 600, and the third elastic element 700 is provided between the intermediate connecting plate B1 and the second end of the fixing rod 600. In this way, during a certain period of movement of the second torsion protrusion 402 relative to the first torsion protrusion 401, the second connecting plate 2012 will move in a direction away from the first support portion body 2011 to compress the third elastic element 700; the third elastic element 700 will provide a reaction force to the second connecting plate 2012, thereby further increasing the abutment between the second torsion protrusion 402 and the first torsion protrusion 401, ensuring a good damping effect between the first support portion 201 and the main support assembly 100. At the same time, it can further increase the abutment between the third torsion protrusion 501 and the fourth torsion protrusion 502, ensuring a good damping effect between the second support portion 202 and the first support portion 201. It should be noted that when the display device is in the unfolded state, the third elastic element has a certain amount of compression, thereby providing a certain amount of damping for the rotating support assembly. In the present application, the third elastic element can be a coil spring or a disc spring, etc.

[0107] For example, as shown in FIG8 , the side surface of the first support body 2011 may have a screw hole g1 and two positioning holes g2 located on either side of the screw hole g1. The second connecting plate 2012 may have two positioning posts g3 corresponding to the two positioning holes g2 on the side facing the second support body 2011, and through holes g4 corresponding to the screw holes g1, with at least portions of the positioning posts g3 being positioned within the corresponding positioning holes g2. The fixing rod 600 may pass through the through holes g4 and be threadedly connected to the screw holes g1 on the side surface of the first support body 2011.

[0108] In the embodiment of the present application, please refer to Figures 19 and 20. Figure 19 is a side view of a display device provided by the embodiment of the present application when a flexible display panel is unfolded, and Figure 20 is a schematic diagram of a membrane structure of a flexible display panel provided by the embodiment of the present application. The flexible display panel 300 in the display device may include: a driving backplane 301, a flat layer 302 located on one side of the driving backplane 301, and a plurality of light-emitting devices 303 located on the side of the flat layer 302 facing away from the driving backplane 301. The plurality of light-emitting devices 303 may be electrically connected to the driving backplane 301. In particular, the rotation axis of the first support portion 201 when rotating relative to the main support assembly 100 (the rotation axis passing through the virtual center of the first arc-shaped chute) may be located within a side I of the flat layer 302 facing away from the driving backplane 301; the rotation axis of the second support portion 202 when rotating relative to the first support portion 201 (the rotation axis passing through the virtual center of the second arc-shaped chute) may be located within a side I of the flat layer 302 facing away from the driving backplane 301. In this case, the rotation axis of the first support portion 201 when rotating relative to the main support assembly 100 is located within the side of the flat layer 302 facing away from the drive backplane 301, and the rotation axis of the second support portion 202 when rotating relative to the first support portion 201 is located within the side of the flat layer 302 facing away from the drive backplane 301. In this way, when the display device switches between the unfolded state and the folded state, the amount of misalignment caused by the inner and outer diameters of the flexible display panel 300 and the rotating support assembly 200 during rotation is effectively avoided, thereby avoiding the generation of tensile / compressive stress on the flexible display panel 300 and ensuring a good display effect of the flexible display panel 300. In this application, the drive backplane 301 may include: a flexible substrate 301a, and a plurality of drive circuits 301b located on the side of the flexible substrate 301a close to the flat layer 302. The drive circuits 301b are used to drive the light-emitting devices 303 to operate.

[0109] Optionally, please refer to Figures 21 and 22, Figure 21 is an exploded schematic diagram of a display device provided in an embodiment of the present application, and Figure 22 is an exploded schematic diagram of the housing in Figure 21. The display device may also include: a housing 800, which may include: a first rigid shell connected to the main support assembly 100, a flexible shell connected to the first support portion 201, and a second rigid shell connected to the second support portion 202. The flexible shell may be located between the first rigid shell and the second rigid shell, and the flexible shell may be connected to the first rigid shell and the second rigid shell, respectively. In this case, by setting the housing 800 in the display device to a first rigid shell, a flexible shell and a second rigid shell that are connected to each other, the housing 800 can better adapt to its expansion and folding during the switching of the display device between the expanded state and the folded state.

[0110] In an embodiment of the present application, as shown in FIG22 , the housing 800 in the display device may include: a covering member 801, a middle frame 802, and a bottom plate 803 arranged in a direction perpendicular to the display surface of the flexible display panel 300. The middle frame 802 may be fixedly connected to the main support assembly 100 and the two rotating support assemblies 200, and the bottom plate 803 may be connected to the side of the middle frame 802 facing away from the flexible display panel 300. The covering member 801 may be located on the side of the flexible display panel 300 facing away from the middle frame 802, and the covering member 801 may cover the non-display area of ​​the flexible display panel 300. For example, the covering member 801 may include: a first rigid frame 801a corresponding to the main support assembly 100, a first flexible frame 801b corresponding to the first support portion 201, and a second rigid frame 801c corresponding to the second support portion 202. The covering member 801 may be snap-fitted and connected to the middle frame 802. The middle frame 802 may include: a third rigid frame 802a corresponding to the main support assembly 100, a second flexible frame 802b corresponding to the first support portion 201, and a fourth rigid frame 802c corresponding to the second support portion 202. The bottom plate 803 may include: a first rigid plate 803a corresponding to the main support assembly 100, a flexible plate 803b corresponding to the first support portion 201, and a second rigid plate 803c corresponding to the second support portion 202. The first rigid frame 801a, the third rigid frame 802a, and the first rigid plate 803a may form a first rigid shell; the first flexible frame 801b, the second flexible frame 802b, and the flexible plate 803b may form a flexible shell; and the second rigid frame 801c, the fourth rigid frame 802c, and the second rigid plate 803c may form a second rigid shell. For example, the first rigid frame, the second rigid frame, the third rigid frame, the fourth rigid frame, the first rigid plate, and the second rigid plate may all be structures made of metal, hard plastic, or the like. The first flexible frame, the second flexible frame and the flexible board can all be made of amorphous materials such as flexible polymer or silicone, and the rigid shell and the flexible shell can be combined by mold injection or 3D printing.

[0111] Optionally, as shown in Figures 21 and 22, the bottom plate 803 in the housing 800 may have an opening 803d on the side facing away from the flexible display panel 300, and the display device may further include: a vital sign detection module 900 located in the housing 800, at least a portion of which may be exposed from the opening 803d of the bottom plate 803. In this case, when the display device is integrated into a wearable device, the vital sign detection module can detect characteristics such as the heart rate and body fat rate of the human body. In the present application, as shown in Figure 21, the display device may further include: a plurality of functional modules arranged in the housing 800, the plurality of functional modules may include: a camera 1000, a battery 1100, a mainboard 1200, a key module 1300, a card tray for SIM card assembly, a speaker 1400, a motor 1500, and a microphone 1600, etc.

[0112] In summary, an embodiment of the present application provides a display device that may include: a main support assembly, two rotating support assemblies, and a flexible display panel. By providing a main support assembly and two rotating support assemblies distributed on both sides of the main support assembly along a first direction in the display device, when the display device switches between an unfolded state and a folded state, the rotating support assemblies distributed on both sides of the main support assembly can rotate relative to each other in different directions under the action of an external force. At this time, the flexible display panel in the display device can be folded or unfolded in a second direction (the second direction can be perpendicular to the first direction) under the action of the rotating support assembly. In addition, during the process of switching between the unfolded state and the folded state of the display device, the first support portion of one rotating support assembly can rotate a certain angle relative to the main support assembly, and the second support portion can also rotate a certain angle relative to the first support portion. At this time, the flexible display panel can also be folded into different shapes under the action of the first support portion and the second support portion. In this way, the display device equipped with a flexible display panel in the present application has a variety of different folding shapes, making the display device more flexible to use and improving the user experience.

[0113] An embodiment of the present application also provides a wearable device, please refer to Figure 23, which is a structural diagram of a wearable device provided by an embodiment of the present application. The wearable device may include: a display device, and a watch strap 001 detachably connected to the display device, and the display device may be any of the display devices given above. For example, when the display device is the device body in the wearable device, the wearable device may be a watch or a bracelet, etc. For example, when the display device is a smart phone, the display device is bent and connected to the watch strap, and can be worn on the user's wrist as a watch. When the display device is unfolded, the watch strap can be removed from the display device, that is, it can be used as a mobile phone.

[0114] In the embodiments of the present application, please refer to Figures 24 and 25. Figure 24 is a schematic diagram of a partial structure of a wearable device provided in the embodiments of the present application, and Figure 25 is a schematic diagram of the connection between the watchband and the display device in Figure 24. The wearable device further includes: a mounting ear 002 fixed to the display device, wherein the mounting ear 002 has two oppositely disposed mounting holes 002a; a watchband 001 having two oppositely disposed latch holes 001a, two latches 001b, a lever hole 001c, a lever assembly 001d, and a fourth elastic element 001e. The fourth elastic element 001e is located within one of the latch holes 001a, with one end of the fourth elastic element 001e connected to the bottom of the latch hole 001a and the other end connected to the portion of the latch 001b located within the latch hole 001a. One end of each of the two latches 001b extends from the opening of the corresponding latch hole 001a to engage with the mounting hole 002a. The lever hole 001c is connected to one of the latch holes 001a. The lever assembly 001d is connected to a latch pin 001b, and a portion of the lever assembly 001d extends from the lever hole 001c. The lever assembly 001d is used to drive the connected latch pin 001b to move to achieve a detachable connection with the corresponding mounting hole 002a.

[0115] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It will also be understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it may be the only layer between the two layers or elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0116] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless expressly limited otherwise.

[0117] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display device, characterized in that: include: Main body support assembly; Two rotating support assemblies distributed on both sides of the main support assembly in a first direction, the rotating support assembly comprising: a first support portion and a second support portion, the first support portion being distributed between the main support assembly and the second support portion in the first direction, and the first support portion being rotatably connected to the second support portion and the main support assembly respectively; A flexible display panel, the back side of which is connected to the main support assembly and the rotation support assembly respectively; Wherein, during the switching of the display device between the unfolded state and the folded state, the angle at which the first support portion rotates relative to the main support assembly and the angle at which the second support portion rotates relative to the first support portion are both acute angles.

2. The display device according to claim 1, characterized in that The first support portion has a first sliding member and a second sliding member on two sides opposite to each other in the first direction, the main support assembly has a third sliding member rotatably connected to the first sliding member on the side facing the first support portion, and the second support portion has a fourth sliding member rotatably connected to the second sliding member on the side facing the first support portion.

3. The display device according to claim 2, characterized in that: One of the first sliding member and the third sliding member is a first arc-shaped sliding plate, and the other is a first arc-shaped sliding groove; one of the second sliding member and the fourth sliding member is a second arc-shaped sliding plate, and the other is a second arc-shaped sliding groove; Wherein, at least a portion of the first arc-shaped sliding plate is located in the first arc-shaped sliding groove, and at least a portion of the second arc-shaped sliding plate is located in the second arc-shaped sliding groove.

4. The display device according to claim 3, characterized in that: The first arc-shaped slide groove and the second arc-shaped slide groove each have a slide groove opening for the corresponding arc-shaped slide plate to slide into, and a position-limiting blind end arranged opposite to the slide groove opening; Wherein, after the display device is in the folded state, the end of the first arc-shaped slide plate abuts against the limiting blind end of the first arc-shaped slide groove, and / or the end of the second arc-shaped slide plate abuts against the limiting blind end of the second arc-shaped slide groove.

5. The display device according to claim 3, characterized in that: The first support portion further comprises a first rotation limiter and a second rotation limiter on two sides that are arranged opposite to each other in the first direction, the main support assembly further comprises a third rotation limiter that cooperates with the first rotation limiter on one side facing the first support portion, and the second support portion further comprises a fourth rotation limiter that cooperates with the second rotation limiter on one side facing the first support portion; Wherein, after the display device is in the unfolded state, the first rotation limiting member abuts against the third rotation limiting member, and / or the second rotation limiting member abuts against the fourth rotation limiting member.

6. The display device according to claim 5, characterized in that: In the case where the first sliding member is the first arc-shaped sliding plate and the third sliding member is the first arc-shaped sliding groove, the first rotation limiting member includes: a first limiting protrusion fixedly connected to the end of the first arc-shaped sliding plate, and the third rotation limiting member includes: a second limiting protrusion fixed on the inner wall of the first arc-shaped sliding groove; And / or, when the second sliding member is the second arc-shaped sliding plate and the fourth sliding member is the second arc-shaped sliding groove, the second rotation limit member includes: a third limit protrusion fixedly connected to the end of the second arc-shaped sliding plate, and the fourth rotation limit member includes: a fourth limit protrusion fixed on the inner wall of the second arc-shaped sliding groove.

7. The display device according to claim 5, characterized in that: One of the first rotation limiting member and the third rotation limiting member is a first limiting column, and the other is a third arc-shaped sliding groove, and at least a portion of the first limiting column is located in the third arc-shaped sliding groove; And / or, one of the second rotation limiting member and the fourth rotation limiting member is a second limiting column, and the other is a fourth arc-shaped sliding groove, and at least a portion of the second limiting column is located in the fourth arc-shaped sliding groove; Wherein, after the display device is in the unfolded state, the first limiting post abuts against the first end of the third arc-shaped slide groove, and / or the second limiting post abuts against the first end of the fourth arc-shaped slide groove; after the display device is in the folded state, the first limiting post abuts against the third arc-shaped slide groove. The second end of the slide groove abuts, and / or the second limiting column abuts the second end of the fourth arc-shaped slide groove.

8. The display device according to claim 7, characterized in that: The main body support assembly comprises: a support seat, and a first connecting plate fixedly connected to a side of the support seat, and the first limiting column is fixedly connected to a side of the first connecting plate away from the support seat; The first support portion comprises: a first support portion body, and a second connecting plate connected to a side surface of the first support portion body, and the third arc-shaped sliding groove and the fourth arc-shaped sliding groove are respectively distributed on two opposite sides of the second connecting plate in the first direction; The second support part comprises: a second support part body, and a third connecting plate connected to a side of the second support part body, and the second limiting column is fixedly connected to a side of the third connecting plate away from the second support part body; Among them, the support seat has the third sliding part on the side close to the first support part body, the first support part body has the first sliding part on the side close to the support seat, the first support part body has the second sliding part on the side close to the second support part body, and the second support part body has the fourth sliding part on the side close to the first support part body.

9. The display device according to claim 8, characterized in that: The second connecting plate comprises: an intermediate connecting plate, and a first edge connecting plate and a second edge connecting plate respectively fixedly connected to two sides of the intermediate connecting plate, the intermediate connecting plate being arranged opposite to the first supporting portion body and connected to the first supporting portion body, the first edge connecting plate being located on a side of the first connecting plate away from the supporting seat, and the second edge connecting plate being located on a side of the third connecting plate away from the second supporting body; Wherein, the third arc-shaped sliding groove is located on the first edge connecting plate, and the fourth arc-shaped sliding groove is located on the second edge connecting plate.

10. The display device according to claim 9, characterized in that: The display device further includes: a first torsion assembly connected to a side of the first connecting plate facing away from the support seat and a side of the first edge connecting plate facing the main body support assembly, respectively, wherein the first torsion assembly is configured to provide a damping force when the first support portion rotates relative to the main body support assembly; and / or, respectively connected to one side of the third connecting plate away from the second supporting portion body and the second edge A second torsion assembly is connected to a side of the connecting plate facing the second supporting portion, and the second torsion assembly is configured to provide a damping force when the second supporting portion rotates relative to the first supporting portion.

11. The display device according to claim 10, characterized in that: The first torsion assembly comprises: a first torsion protrusion fixedly connected to a side of the first connection plate facing away from the support seat, and at least one second torsion protrusion fixedly connected to a side of the first edge connection plate facing the main support assembly; during the process of the display device switching between the unfolded state and the folded state, there is always one second torsion protrusion among the at least one second torsion protrusion abutting against the first torsion protrusion, and the first torsion protrusion can move relative to the second torsion protrusion in the first direction; And / or, the second torsion assembly includes: a third torsion protrusion fixedly connected to a side of the third connecting plate facing away from the second support portion body, and at least one fourth torsion protrusion fixedly connected to a side of the second edge connecting plate facing the second support portion; during the process of switching the display device between the unfolded state and the folded state, there is always a fourth torsion protrusion among the at least one fourth torsion protrusion that abuts against the third torsion protrusion, and the third torsion protrusion can move relative to the fourth torsion protrusion in the first direction.

12. The display device according to claim 11, characterized in that: The first torsion protrusion has a first inclined surface and a second inclined surface arranged opposite to each other in the first direction, and the second torsion protrusion has a third inclined surface and a fourth inclined surface arranged opposite to each other in the first direction; during the switching of the display device between the unfolded state and the folded state, the first torsion protrusion first abuts against the second torsion protrusion by abutting the first inclined surface and the third inclined surface, and then abuts against the second torsion protrusion by abutting the second inclined surface and the fourth inclined surface; And / or, the third torsion protrusion has a fifth inclined plane and a sixth inclined plane that are relatively arranged in the first direction, and the fourth torsion protrusion has a seventh inclined plane and an eighth inclined plane that are relatively arranged in the first direction; during the process of switching the display device between the unfolded state and the folded state, the third torsion protrusion first abuts against the fourth torsion protrusion by abutting the fifth inclined plane and the seventh inclined plane, and then abuts against the fourth torsion protrusion by abutting the sixth inclined plane and the eighth inclined plane.

13. The display device according to claim 11, characterized in that: The main body support assembly has a first mounting groove on one side away from the flexible display panel, and the first torsion assembly further includes: a first elastic element located in the first mounting groove, a portion of the first torsion protrusion is located in the first mounting groove, and another portion extends from the first mounting groove, one end of the first elastic element is fixedly connected to the bottom surface of the first mounting groove, and the other end of the first elastic element is fixedly connected to the portion of the first torsion protrusion located in the first mounting groove; And / or, the second supporting portion has a second mounting groove on a side facing away from the flexible display panel, and the second torsion assembly also includes: a second elastic element located in the second mounting groove, a portion of the third torsion protrusion is located in the second mounting groove, and another portion extends from the second mounting groove, one end of the second elastic element is fixedly connected to the bottom surface of the second mounting groove, and the other end of the second elastic element is fixedly connected to the portion of the third torsion protrusion located in the second mounting groove.

14. The display device according to claim 10, characterized in that: The first torsion assembly further includes: a first foam fixed on the inner side wall of the first arc-shaped slide groove; and / or the second torsion assembly further includes: a second foam fixed on the inner side wall of the second arc-shaped slide groove.

15. The display device according to any one of claims 9 to 14, characterized in that: The display device also includes: a fixing rod and a third elastic element, the first end of the fixing rod is fixedly connected to the side of the first support part body, the intermediate connecting plate is sleeved on the fixing rod and slidably connected to the fixing rod, and the third elastic element is located between the intermediate connecting plate and the second end of the fixing rod.

16. The display device according to any one of claims 1 to 14, characterized in that: The flexible display panel comprises: a driving backplane, a flat layer located on one side of the driving backplane, and a plurality of light-emitting devices located on a side of the flat layer away from the driving backplane, wherein the plurality of light-emitting devices are electrically connected to the driving backplane; Wherein, the rotation axis centerline of the first support part when rotating relative to the main support component is located on the side of the flat layer away from the drive back plate, and the rotation axis centerline of the second support part when rotating relative to the first support part is located on the side of the flat layer away from the drive back plate.

17. The display device according to any one of claims 1 to 14, characterized in that: The display device further comprises: a housing, the housing comprising: a first rigid housing connected to the main support assembly, a flexible housing connected to the first support portion, and a second rigid housing connected to the second support portion; The flexible shell is located between the first rigid shell and the second rigid shell, and the flexible shell is connected to the first rigid shell and the second rigid shell respectively.

18. The display device according to claim 17, characterized in that: The housing comprises: a covering member, a middle frame and a bottom plate arranged in a direction perpendicular to the display surface of the flexible display panel; The middle frame is connected to the main support assembly and the two rotating support assemblies, the bottom plate is connected to a side of the middle frame away from the flexible display panel, the covering is located on a side of the flexible display panel away from the middle frame, and the covering covers a non-display area of ​​the flexible display panel.

19. The display device according to claim 18, characterized in that The bottom plate has an opening on a side facing away from the flexible display panel. The display device further comprises: a vital sign detection module located in the housing, and at least a portion of the vital sign monitoring module is exposed from the opening.

20. A wearable device, characterized in that: include: A display device, and a watch strap detachably connected to the display device, wherein the display device is the display device described in any one of claims 1 to 19 above.

Images