Display apparatus and display device

Abstract

The present disclosure relates to the technical field of display, and provides a display apparatus and a display device. The display apparatus comprises a flexible display panel and a support assembly; the support assembly is located on a non-display surface of the flexible display panel; the support assembly comprises a first support plate, a second support plate, a third support plate, a first bending assembly, and a second bending assembly; the support assembly is configured to be switchable between a folded state and an unfolded state; in the folded state, the second support plate, the first support plate, and the third support plate are sequentially stacked, and the minimum distance between each pair of first rotating arms is less than the minimum distance between each pair of second rotating arms; and in the unfolded state, the first support plate, the second support plate, and the third support plate are located on the same plane. The present disclosure can reduce the probability of damage to the flexible display panel on the support assembly during bending, thereby improving the reliability of the display apparatus.

Description

Display devices and display equipment

[0001] This disclosure claims priority to Chinese Patent Application No. 202510089811.1, filed on January 20, 2025, entitled “Display Device and Display Apparatus”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of display technology, and in particular to a display device and display equipment. Background Technology

[0003] With the development of display technology, display devices have become increasingly widely used and have become one of the important tools in people's daily work and life. Foldable display devices are gradually gaining popularity because they take up little space and are easy to carry. Summary of the Invention

[0004] This disclosure provides a display device and display apparatus that can reduce the probability of damage to the flexible display panel on the support assembly during bending, thereby improving the reliability of the display device. The technical solution is as follows:

[0005] On one hand, a display device is provided, including a flexible display panel and a support assembly. The support assembly is located on the non-display surface of the flexible display panel. The support assembly includes a first support plate, a second support plate, a third support plate, a first bending assembly, and a second bending assembly. The first bending assembly includes a first body and at least one pair of first rotating arms. Each pair of first rotating arms is rotatably connected to both sides of the first body and is respectively connected to the first support plate and the second support plate. The second bending assembly includes a second body and at least one pair of second rotating arms. Each pair of second rotating arms is rotatably connected to both sides of the second body and is respectively connected to the second support plate and the third support plate. The support assembly is configured to switch between a folded state and an unfolded state. In the folded state, the second support plate, the first support plate, and the third support plate are stacked sequentially, and the minimum distance between each pair of first rotating arms is less than the minimum distance between each pair of second rotating arms. In the unfolded state, the first support plate, the second support plate, and the third support plate are located on the same plane.

[0006] Optionally, the first bending assembly further includes at least one pair of first co-moving gears, each pair of first co-moving gears meshing with each other, each pair of first co-moving gears located between a pair of first rotating arms, the first rotating arm including a first rotating member having a connected first rotating plate portion and a first gear portion, the first gear portion meshing with the first co-moving gear, the first rotating plate portion including a bending plate, and in a direction perpendicular to the non-display surface, the minimum distance between the end of the bending plate away from the first gear portion and the non-display surface is less than the minimum distance between the end of the bending plate near the first gear portion and the non-display surface; the second bending assembly further includes at least one pair of second co-moving gears, each pair of second co-moving gears meshing with each other, each pair of second co-moving gears located between a pair of second rotating arms, the second rotating arm including a second rotating member, the second rotating member having a connected second rotating plate portion and a second gear portion, the second gear portion meshing with the second co-moving gear, the second rotating plate portion including a flat plate, the flat plate being parallel to the non-display surface.

[0007] Optionally, the diameter of the first co-moving gear is smaller than the diameter of the second co-moving gear.

[0008] Optionally, the first bending assembly further includes at least one first driving unit, which is fixed to the first body and is used to drive at least one first rotating arm to rotate; the second bending assembly further includes at least one second driving unit, which is fixed to the second body and is used to drive at least one second rotating arm to rotate.

[0009] Optionally, the first drive unit includes a first motor and a first transmission structure, wherein the output shaft of the first motor is connected to a first co-moving gear through the first transmission structure; the second drive unit includes a second motor and a second transmission structure, wherein the output shaft of the second motor is connected to a second co-moving gear through the second transmission structure.

[0010] Optionally, the first transmission structure includes a coupling, and the output shaft of the first motor is coaxially connected to a first co-moving gear through the coupling; the second transmission structure includes a first transmission gear and a second transmission gear, the output shaft of the second motor is coaxially connected to the first transmission gear, the first transmission gear meshes with the second transmission gear, and the second transmission gear is coaxially connected to a second co-moving gear.

[0011] Optionally, the first drive unit includes a pair of first torsion springs, each of which is connected to a corresponding first rotating arm; the second drive unit includes a pair of second torsion springs, each of which is connected to a corresponding second rotating arm; in the folded state, both the first and second torsion springs are used to provide a first torque so that the display device can switch to the unfolded state.

[0012] Optionally, the first torsion spring includes a first torsion spring arm, a second torsion spring arm, and two first body parts. The two first body parts are respectively sleeved on both ends of the axial direction of the first gear part, and the first body parts are coaxially connected to the first gear part. The first torsion spring arm is connected to the first rotating plate part, and the second torsion spring arm is fixed to the first body part. The second torsion spring includes a third torsion spring arm, a fourth torsion spring arm, and two second body parts. The two second body parts are respectively sleeved on both ends of the axial direction of the second gear part, and the second body parts are coaxially connected to the second gear part. The third torsion spring arm is connected to the second rotating plate part, and the fourth torsion spring arm is fixed to the second body part.

[0013] Optionally, the support assembly further includes a first magnetic body, a second magnetic body, and a third magnetic body. The first magnetic body is located on the surface of the first support plate away from the flexible display panel, the second magnetic body is located on the surface of the second support plate away from the flexible display panel, and the third magnetic body is located on the surface of the third support plate away from the flexible display panel. In the folded state, the first magnetic body, the second magnetic body, and the third magnetic body provide a first locking force to enable the display device to maintain the folded state. The first locking force is greater than the sum of the first torques provided by the first torsion spring and the second torsion spring.

[0014] Optionally, the support assembly further includes a switch assembly connected to the first magnetic body. The switch assembly is used to move the first magnetic body from a first position to a second position under the action of an external force. When the first magnetic body is in the first position, the sum of the attractive forces between the first magnetic body, the second magnetic body, and the third magnetic body in the folded state is the first locking force. When the first magnetic body is in the second position, the sum of the attractive forces between the first magnetic body, the second magnetic body, and the third magnetic body in the folded state is less than the sum of the first torques provided by the first torsion spring and the second torsion spring.

[0015] Optionally, the switch assembly includes a pressing member, a lever, and a resilient reset member. A first end of the lever abuts against the pressing member, a second end of the lever is connected to the first magnetic body, and the middle part of the lever is rotatably connected to the first support plate. A first end of the resilient reset member is fixed to the first support plate, and a second end of the resilient reset member is connected to the first magnetic body. The resilient reset member is used to apply a reset force to the first magnetic body when the first magnetic body is in the second position, so that the first magnetic body moves from the second position to the first position.

[0016] Optionally, the first rotating arm further includes a first connecting member and a third rotating member. The first connecting member is slidably connected to the end of the first rotating plate portion away from the first gear portion. The first end of the third rotating member is rotatably connected to the first connecting member, and the second end of the third rotating member is rotatably connected to the first main body. The second rotating arm further includes a second connecting member and a fourth rotating member. The second connecting member is slidably connected to the end of the second rotating plate portion away from the second gear portion. The first end of the fourth rotating member is rotatably connected to the second connecting member, and the second end of the fourth rotating member is rotatably connected to the second main body.

[0017] Optionally, the first body has at least one pair of first slots, each pair of first slots corresponding to a pair of first rotating arms, the first end of the third rotating member is rotatably connected to the first connecting member via a first pin, the second end of the third rotating member is a first arc-shaped plate, and each first arc-shaped plate is located in one of the first slots; the second body has at least one pair of second slots, each pair of second slots corresponding to a pair of second rotating arms, the first end of the fourth rotating member is rotatably connected to the second connecting member via a second pin, the second end of the fourth rotating member is a second arc-shaped plate, and each second arc-shaped plate is located in one of the second slots.

[0018] Optionally, the first bending assembly includes two pairs of first rotating arms, the two pairs of first rotating arms being located at opposite ends of the first body, and the rotation axes of each first rotating arm being parallel to each other; the second bending assembly includes two pairs of second rotating arms, the two pairs of second rotating arms being located at opposite ends of the second body, and the rotation axes of each second rotating arm being parallel to each other.

[0019] Optionally, the support assembly further includes a support frame located on the surface of the second support plate away from the flexible display panel, and one end of the support frame is rotatably connected to the second support plate.

[0020] On the other hand, a display device is provided, including any of the aforementioned display devices and a keyboard, wherein the keyboard is rotatably connected to a second support plate of the display device.

[0021] Optionally, the keyboard includes a first sub-keyboard, a second sub-keyboard, and a third sub-keyboard. The first sub-keyboard and the third sub-keyboard are rotatably connected to opposite sides of the second sub-keyboard. The second sub-keyboard is rotatably connected to the second support plate, and the rotation axis between the second sub-keyboard and the second support plate is perpendicular to the rotation axis between the first sub-keyboard and the second sub-keyboard and the rotation axis between the third sub-keyboard and the second sub-keyboard.

[0022] The beneficial effects of the technical solutions provided in this disclosure are:

[0023] In this embodiment, each pair of first rotating arms is connected to a first support plate and a second support plate, respectively, and each pair of second rotating arms is connected to a second support plate and a third support plate, respectively. In the folded state, the second support plate, the first support plate, and the third support plate are stacked sequentially. That is, during the transition from the unfolded state to the folded state, both the first and third support plates bend towards the same side of the second support plate. In the folded state, the first support plate is still present between the second and third support plates, resulting in a G-shaped fold for the display device. In the folded state, the minimum distance between each pair of first rotating arms is less than the minimum distance between each pair of second rotating arms, meaning that the space between the second and third support plates is larger than the space between the first and second support plates. This facilitates the formation of sufficient space between the second and third support plates to accommodate the flexible display panel in the folded state, thereby reducing the probability of damage to the flexible display panel on the support assembly during bending and improving the reliability of the display device. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is a schematic diagram of the structure of a display device provided in an embodiment of this disclosure;

[0026] Figure 2 is a structural schematic diagram of a support component provided in an embodiment of this disclosure;

[0027] Figure 3 is a schematic diagram of the structure of a display device in a folded state according to an embodiment of the present disclosure;

[0028] Figure 4 is a partial structural schematic diagram of a display device in a folded state according to an embodiment of the present disclosure;

[0029] Figure 5 is a partial structural schematic diagram of a display device in an unfolded state according to an embodiment of the present disclosure;

[0030] Figure 6 is a partial structural schematic diagram of a support component provided in an embodiment of this disclosure;

[0031] Figure 7 is a partial structural schematic diagram of a support component provided in an embodiment of this disclosure;

[0032] Figure 8 is a partial structural schematic diagram of a display device in an unfolded state according to an embodiment of the present disclosure;

[0033] Figure 9 is a partial structural schematic diagram of a display device in an unfolded state according to an embodiment of the present disclosure;

[0034] Figure 10 is a partial structural schematic diagram of a display device in a folded state according to an embodiment of the present disclosure;

[0035] Figure 11 is a schematic diagram of another support component provided in an embodiment of this disclosure;

[0036] Figure 12 is a partial structural schematic diagram of a support component provided in an embodiment of this disclosure;

[0037] Figure 13 is a partial structural schematic diagram of a display device in an unfolded state according to an embodiment of the present disclosure;

[0038] Figure 14 is a partial structural schematic diagram of a support component provided in an embodiment of this disclosure;

[0039] Figure 15 is a partial structural schematic diagram of a display device in an unfolded state according to an embodiment of the present disclosure;

[0040] Figure 16 is a structural schematic diagram of a support component provided in an embodiment of this disclosure;

[0041] Figure 17 is a partial structural schematic diagram of a support component provided in an embodiment of this disclosure;

[0042] Figure 18 is a schematic diagram of a display device in a folded state according to an embodiment of the present disclosure;

[0043] Figure 19 is a schematic diagram of a display device in a folded state according to an embodiment of the present disclosure;

[0044] Figure 20 is a schematic diagram of the structure of a display device provided in an embodiment of this disclosure;

[0045] Figure 21 is a schematic diagram of the structure of a display device provided in an embodiment of this disclosure;

[0046] Figure 22 is a schematic diagram of the structure of a display device provided in an embodiment of this disclosure;

[0047] Figure 23 is a schematic diagram of the structure of a display device provided in an embodiment of this disclosure;

[0048] Figure 24 is a schematic diagram of a display device in a folded state according to an embodiment of the present disclosure;

[0049] Figure 25 is a schematic diagram of the structure of a display device in a folded state according to an embodiment of the present disclosure.

[0050] Legend: 1. Flexible display panel; 2. Support assembly 10; First support plate 11; Second support plate 12; Third support plate 20; First bending assembly 21; First main body 210; First slot 22; First rotating arm 220; First rotating component 2201; First rotating plate portion 2201a; First connecting protrusion 2202; First gear portion 221; First connector 2210; First connecting strip 2211; First connecting portion 2211a; First sliding groove 2212; Third connecting portion 22 2. Third rotating component 223, first pin 23, first co-moving gear 24, first drive unit 240, first motor 241, first transmission structure 242, first torsion spring 2421, first torsion spring arm 2422, second torsion spring arm 2423, first body part 30, second bending assembly 31, second main body 310, second slot 32, second rotating arm 320, second rotating component 3201, second rotating plate part 3201a, second connecting protrusion 3202, second gear part 321, Second connecting member 3210, Second connecting bar 3211, Second connecting part 3211a, Second slide groove 3212, Fourth connecting part 322, Fourth rotating member 323, Second pin 33, Second co-moving gear 34, Second drive unit 340, Second motor 341, Second transmission structure 3411, First transmission gear 3412, Second transmission gear 342, Second torsion spring 3421, Third torsion spring arm 3422, Fourth torsion spring arm 3423, Second body part 40. First magnetic body; 41. Second magnetic body; 42. Third magnetic body; 50. Switch assembly; 51. Pressing element; 52. Toggle lever; 520. First sub-lever; 521. Second sub-lever; 522. Third sub-lever; 53. Elastic reset element; 54. Sliding structure; 55. Sliding limit structure; 60. Support frame; 1000. Display device; 1001. Keyboard; 1001a. First sub-keyboard; 1001b. Second sub-keyboard; 1001c. Third sub-keyboard; 1002. Flexible connecting strip; 1003. Touch screen. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0052] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” “top,” and “bottom,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0053] In related technologies, there exists a foldable display device, which includes a flexible display panel and a support assembly, with the support assembly located on the non-display surface of the flexible display panel. The support assembly includes a first support plate, a second support plate, a third support plate, a first bending assembly, and a second bending assembly. The first bending assembly includes a first main body and at least one pair of first rotating arms, each pair of first rotating arms being rotatably connected to both sides of the first main body and respectively connected to the first and second support plates. The second bending assembly includes a second main body and at least one pair of second rotating arms, each pair of second rotating arms being rotatably connected to both sides of the second main body and respectively connected to the second and third support plates. The support assembly is configured to switch between a folded state and an unfolded state. In the folded state, the second, first, and third support plates are stacked sequentially; in the unfolded state, the first, second, and third support plates are located on the same plane.

[0054] However, during the transition from the unfolded to the folded state, both the first and third support plates bend towards the same side of the second support plate in the middle. In the folded state, the first support plate remains between the second and third support plates, resulting in a G-shaped fold for the display device. Since both the support plates and the flexible display panel have thickness, this G-shaped folding method may result in insufficient space between the second and third support plates to accommodate the flexible display panel in the folded state. This could lead to damage to the flexible display panel on the support assembly during bending, affecting the reliability of the display device.

[0055] Therefore, embodiments of this disclosure provide a display device that can switch between a folded state and an unfolded state, and can reduce the probability of damage to the flexible display panel on the support assembly during bending, thereby improving the reliability of the display device.

[0056] Figure 1 is a schematic diagram of a display device provided in an embodiment of this disclosure. As shown in Figure 1, the display device includes a flexible display panel 1 and a support component 2, with the support component 2 located on the non-display surface of the flexible display panel 1.

[0057] Figure 2 is a schematic diagram of a support assembly provided in an embodiment of this disclosure. As shown in Figure 2, the support assembly 2 includes a first support plate 10, a second support plate 11, a third support plate 12, a first bending assembly 20, and a second bending assembly 30. The first bending assembly 20 includes a first body 21 and at least one pair of first rotating arms 22. Each pair of first rotating arms 22 is rotatably connected to both sides of the first body 21 and is respectively connected to the first support plate 10 and the second support plate 11. The second bending assembly 30 includes a second body 31 and at least one pair of second rotating arms 32. Each pair of second rotating arms 32 is rotatably connected to both sides of the second body 31 and is respectively connected to the second support plate 11 and the third support plate 12.

[0058] Figure 3 is a structural schematic diagram of a display device provided in the present disclosure in a folded state. Figure 4 is a partial structural schematic diagram of a display device provided in the present disclosure in a folded state. Part (a) of Figure 4 shows a partial structural schematic diagram of the section line A1 in Figure 2 in the folded state, and part (b) of Figure 4 shows a partial structural schematic diagram of the section line A2 in Figure 2 in the folded state. Referring to Figures 1 to 4, the support assembly 2 is configured to switch between a folded state and an unfolded state. In the folded state, the second support plate 11, the first support plate 10, and the third support plate 12 are stacked sequentially, and the minimum distance H1 between each pair of first rotating arms 22 is less than the minimum distance H2 between each pair of second rotating arms 32. In the unfolded state, the first support plate 10, the second support plate 11, and the third support plate 12 are located on the same plane. Here, the minimum distance H1 between each pair of first rotating arms 22 refers to the minimum value of the distance between each pair of first rotating arms 22, and the minimum distance H2 between each pair of second rotating arms 32 refers to the minimum value of the distance between each pair of second rotating arms 32.

[0059] In this embodiment, each pair of first rotating arms 22 is connected to the first support plate 10 and the second support plate 11, respectively, and each pair of second rotating arms 32 is connected to the second support plate 11 and the third support plate 12, respectively. In the folded state, the second support plate 11, the first support plate 10, and the third support plate 12 are stacked sequentially. That is, during the transition from the unfolded state to the folded state, both the first support plate 10 and the third support plate 12 bend towards the same side of the second support plate 11. In the folded state, the first support plate 10 is still present between the second support plate 11 and the third support plate 12, and the display device is G-shaped folded. In the folded state, the minimum distance H1 between each pair of first rotating arms 22 is less than the minimum distance H2 between each pair of second rotating arms 32, meaning that the space between the second support plate 11 and the third support plate 12 is larger than the space between the first support plate 10 and the second support plate 11. This helps to create sufficient space between the second support plate 11 and the third support plate 12 to accommodate the flexible display panel 1 when it is folded, thereby reducing the probability of damage to the flexible display panel 1 on the support assembly 2 during bending and improving the reliability of the display device.

[0060] Figure 5 is a partial structural schematic diagram of a display device provided in the present disclosure in an unfolded state. Part (a) of Figure 5 shows a partial structural schematic diagram of the unfolded state at section line A1 in Figure 2, and part (b) of Figure 5 shows a partial structural schematic diagram of the unfolded state at section line A2 in Figure 2. Referring to Figures 1, 2, 4 and 5, the first bending assembly 20 further includes at least one pair of first co-moving gears 23, each pair of first co-moving gears 23 meshing with each other, and each pair of first co-moving gears 23 located between a pair of first rotating arms 22. The first rotating arm 22 includes a first rotating member 220, the first rotating member 220 having a connected first rotating plate portion 2201 and a first gear portion 2202. The first gear section 2202 meshes with the first co-moving gear 23. The first rotating plate section 2201 includes a bent plate, and in the direction perpendicular to the non-display surface, the minimum distance between the end of the bent plate away from the first gear section 2202 and the non-display surface is less than the minimum distance between the end of the bent plate near the first gear section 2202 and the non-display surface. In other words, the first rotating plate section 2201 can be understood as a flat plate with a bent middle section, which is bent away from the non-display surface in the direction near the first gear section 2202 to form the bent plate.

[0061] The second bending assembly 30 further includes at least one pair of second synchronous gears 33, each pair of second synchronous gears 33 meshing with each other, and each pair of second synchronous gears 33 being located between a pair of second rotating arms 32. The second rotating arm 32 includes a second rotating member 320, which has a connected second rotating plate portion 3201 and a second gear portion 3202. The second gear portion 3202 meshes with the second synchronous gears 33, and the second rotating plate portion 3201 includes a flat plate parallel to the non-display surface.

[0062] Through the cooperation of the first rotating member 220 and the first co-moving gear 23, and the cooperation of the second rotating member 320 and the second co-moving gear 33, the rotation effect of the first rotating arm 22 and the second rotating arm 32 can be realized, which facilitates the switching of the support assembly 2 between the folded state and the unfolded state. The first rotating plate part 2201 includes a bent plate, and in the direction perpendicular to the non-display surface, the minimum distance between the end of the bent plate away from the first gear part 2202 and the non-display surface is less than the minimum distance between the end of the bent plate close to the first gear part 2202 and the non-display surface. The second rotating plate part 3201 includes a flat plate, which is parallel to the non-display surface. Thus, the bending shape of the first rotating plate part 2201 can make the minimum distance between each pair of first rotating arms 22 less than the minimum distance between each pair of second rotating arms 32, which helps to reduce the probability of damage to the flexible display panel 1 on the support assembly 2 during bending.

[0063] For example, the plane containing the portion of the bent plate away from the first gear portion 2202 is parallel to the non-display surface, and the plane containing the portion of the bent plate near the first gear portion 2202 intersects with the non-display surface.

[0064] It should be noted that the shapes of the first rotating plate portion 2201 and the second rotating plate portion 3201 in this embodiment are merely examples. In other embodiments, the first rotating plate portion 2201 and the second rotating plate portion 3201 may also adopt other shapes. For example, the second rotating plate portion 3201 may also include a bent plate, etc., as long as the minimum distance between each pair of first rotating arms 22 is less than the minimum distance between each pair of second rotating arms 32 in the folded state. This disclosure does not impose any limitations on this.

[0065] For example, the first rotating plate portion 2201 and the first gear portion 2202 of the first rotating member 220 can be integrally formed. The second rotating plate portion 3201 and the second gear portion 3202 of the second rotating member 320 can also be integrally formed.

[0066] For example, the first gear section 2202 has a plurality of teeth on the side near the first moving gear 23 and the side near the non-display surface, and the first gear section 2202 meshes with the first moving gear 23 through the plurality of teeth. The second gear section 3202 has a plurality of teeth on the side near the second moving gear 33 and the side near the non-display surface, and the second gear section 3202 meshes with the second moving gear 33 through the plurality of teeth.

[0067] As shown in Figure 5, the diameter D1 of the first co-moving gear 23 is smaller than the diameter D2 of the second co-moving gear 33. By differentiating the diameters of the first co-moving gear 23 and the second co-moving gear 33, it can cooperate with the bending plate and the straight plate to effectively increase the minimum distance between each pair of second rotating arms 32 in the folded state, so that the minimum distance between each pair of first rotating arms 22 in the folded state is smaller than the minimum distance between each pair of second rotating arms 32.

[0068] Figure 6 is a partial structural schematic diagram of a support component provided in an embodiment of this disclosure. Figure 6 shows a partial structural schematic diagram of a first bending component. Figure 7 is a partial structural schematic diagram of a support component provided in an embodiment of this disclosure. Figure 7 shows a partial structural schematic diagram of a second bending component. As shown in Figures 6 and 7, the first bending component 20 further includes at least one first driving unit 24, which is fixed to the first main body 21 and is used to drive at least one first rotating arm 22 to rotate. The second bending component 30 further includes at least one second driving unit 34, which is fixed to the second main body 31 and is used to drive at least one second rotating arm 32 to rotate. In this way, the first driving unit 24 and the second driving unit 34 facilitate the switching of the support component 2 between a folded state and an unfolded state, improving the convenience and reliability of state switching.

[0069] For example, the first body 21 includes a first housing with a first placement slot, and the second body 31 includes a second housing with a second placement slot.

[0070] For example, the first placement groove and the second placement groove are elongated grooves, and the length direction of the first placement groove is parallel to the rotation axis of the first rotating arm 22, and the length direction of the second placement groove is parallel to the rotation axis of the second rotating arm 32.

[0071] For example, the first drive unit 24 is located in the first placement slot and fixed to the first housing, and the second drive unit 34 is located in the second placement slot and fixed to the second housing.

[0072] It should be noted that the configuration of the first driving unit 24 and the second driving unit 34 in this embodiment is only an example. In other embodiments, the first driving unit 24 and the second driving unit 34 may also adopt other configurations, as long as they can achieve the function of driving the first rotating arm 22 and the second rotating arm 32 to rotate. This disclosure does not impose any restrictions on this.

[0073] Figure 8 is a partial structural schematic diagram of a display device in an unfolded state according to an embodiment of this disclosure. Part (a) of Figure 8 shows a partial structural schematic diagram of the unfolded state at section line B1 in Figure 2, and part (b) of Figure 8 shows a partial structural schematic diagram of the unfolded state at section line B2 in Figure 2. As shown in Figures 5 to 8, the first driving unit 24 includes a first motor 240 and a first transmission structure 241. The output shaft of the first motor 240 is connected to a first synchronous gear 23 through the first transmission structure 241. The second driving unit 34 includes a second motor 340 and a second transmission structure 341. The output shaft of the second motor 340 is connected to a second synchronous gear 33 through the second transmission structure 341. The motor can start and stop as needed. Therefore, by using the first motor 240, the first transmission structure 241, the second motor 340, and the second transmission structure 341, the first synchronous gear 23 and the second synchronous gear 33 can be controlled to start and stop as needed, thereby precisely controlling the bending angle of the display device.

[0074] For example, the first motor 240 is fixed to the top surface of the first housing, that is, the top of the first placement slot. The second motor 340 is fixed to the top surface of the second housing, that is, the top of the second placement slot.

[0075] Exemplarily, the first transmission structure 241 includes a coupling, and the output shaft of the first motor 240 is coaxially connected to a first synchronous gear 23 via the coupling. The second transmission structure 341 includes a first transmission gear 3411 and a second transmission gear 3412, the output shaft of the second motor 340 is coaxially connected to the first transmission gear 3411, the first transmission gear 3411 meshes with the second transmission gear 3412, and the second transmission gear 3412 is coaxially connected to a second synchronous gear 33.

[0076] Because the arrangement of the output shaft of the first motor 240 and the rotation axis of the first co-moving gear 23 is limited by the space of the first main body 21, and the arrangement of the output shaft of the second motor 340 and the rotation axis of the second co-moving gear 33 is limited by the space of the second main body 31, and the diameter D1 of the first co-moving gear 23 is smaller than the diameter D2 of the second co-moving gear 33, it is easier for the output shaft of the first motor 240 to be coaxially connected with the first co-moving gear 23, while it may be difficult for the output shaft of the second motor 340 to be coaxially connected with the second co-moving gear 33. Setting the second transmission structure 341 as the first transmission gear 3411 and the second transmission gear 3412 can better transmit power, ensure better control of the second motor 340, and facilitate the realization that in the folded state, the second support plate 11, the first support plate 10, and the third support plate 12 are stacked sequentially, and the minimum distance between each pair of first rotating arms 22 is smaller than the minimum distance between each pair of second rotating arms 32.

[0077] Figure 9 is a partial structural schematic diagram of a display device provided in the present disclosure in an unfolded state. Part (a) of Figure 9 shows a partial structural schematic diagram of the unfolded state at section line C1 in Figure 2, and part (b) of Figure 9 shows a partial structural schematic diagram of the unfolded state at section line C2 in Figure 2. Figure 10 is a partial structural schematic diagram of a display device provided in the present disclosure in a folded state. Part (a) of Figure 10 shows a partial structural schematic diagram of the folded state at section line C1 in Figure 2, and part (b) of Figure 10 shows a partial structural schematic diagram of the folded state at section line C2 in Figure 2. As shown in Figures 4 to 10, the first rotating arm 22 further includes a first connecting member 221 and a third rotating member 222. The first connecting member 221 is slidably connected to the end of the first rotating plate portion 2201 away from the first gear portion 2202. The first end of the third rotating member 222 is rotatably connected to the first connecting member 221, and the second end of the third rotating member 222 is rotatably connected to the first main body 21. The second rotating arm 32 also includes a second connecting member 321 and a fourth rotating member 322. The second connecting member 321 is slidably connected to the end of the second rotating plate portion 3201 that is away from the second gear portion 3202. The first end of the fourth rotating member 322 is rotatably connected to the second connecting member 321, and the second end of the fourth rotating member 322 is rotatably connected to the second main body 31.

[0078] By combining the sliding connection between the first rotating plate 2201 and the first connecting member 221, and the rotational connection at both ends of the third rotating member 222, the rotation of the first rotating arm 22 can be made more stable. Similarly, by combining the sliding connection between the second rotating plate 3201 and the second connecting member 321, and the rotational connection at both ends of the fourth rotating member 322, the rotation of the second rotating arm 32 can be made more stable.

[0079] Optionally, the first connecting member 221 includes a first connecting strip 2210 and a first connecting portion 2211 connected together. The first connecting strip 2210 is elongated, and its length direction is parallel to the rotation axis of the first rotating arm 22. Each first connecting strip 2210 is fixed to one of the first support plate 10 and the second support plate 11. The first connecting portion 2211 has a first groove 2211a, which is elongated, and its length direction is perpendicular to the length direction of the first connecting strip 2210. The end of the first rotating plate portion 2201 away from the first gear portion 2202 has a first connecting protrusion 2201a, which is located in the first groove 2211a. The second connecting member 321 includes a connected second connecting strip 3210 and a second connecting portion 3211. The second connecting strip 3210 is elongated, and its length direction is parallel to the rotation axis of the second rotating arm 32. Each second connecting strip 3210 is fixed to one of the second support plate 11 and the third support plate 12. The second connecting portion 3211 has a second sliding groove 3211a, which is elongated and its length direction is perpendicular to the length direction of the second connecting strip 3210. The end of the second rotating plate portion 3201 away from the second gear portion 3202 has a second connecting protrusion 3201a, which is located in the second sliding groove 3211a. In this way, when the display device switches between the unfolded state and the folded state, the first connecting protrusion 2201a can achieve sliding compensation in the first slide groove 2211a, and the second connecting protrusion 3201a can achieve sliding compensation in the second slide groove 3211a, thereby improving the stability of rotation and the reliability of state switching.

[0080] For example, the first connector 221 has two first connecting portions 2211 spaced apart and arranged opposite to each other. One end of the first rotating plate portion 2201 away from the first gear portion 2202 is located between the two first connecting portions 2211, and the first connecting protrusion 2201a is located in the two first sliding grooves 2211a. The second connector 321 has two second connecting portions 3211 spaced apart and arranged opposite to each other. One end of the second rotating plate portion 3201 away from the second gear portion 3202 is located between the two second connecting portions 3211, and the second connecting protrusion 3201a is located in the two second sliding grooves 3211a.

[0081] In other embodiments, the number of the first connecting part 2211 and its arrangement with the first rotating plate part 2201, and the number of the second connecting part 3211 and its arrangement with the second rotating plate part 3201 can be adjusted according to actual needs, so as to realize the function of sliding connection between the first connecting part 221 and the end of the first rotating plate part 2201 away from the first gear part 2202, and sliding connection between the second connecting part 321 and the end of the second rotating plate part 3201 away from the second gear part 3202. This disclosure does not limit this.

[0082] For example, the first connecting portion 2211 is cuboid in shape, and the second connecting portion 3211 is cuboid in shape. In other embodiments, the first connecting portion 2211 and the second connecting portion 3211 may also be other shapes, and this disclosure does not limit them.

[0083] Optionally, the first body 21 has at least one pair of first slots 210, each pair of first slots 210 corresponding to a pair of first rotating arms 22. The first end of the third rotating member 222 is rotatably connected to the first connecting member 221 via a first pin 223, and the second end of the third rotating member 222 is a first arc-shaped plate, each first arc-shaped plate located in one first slot 210. The second body 31 has at least one pair of second slots 310, each pair of second slots 310 corresponding to a pair of second rotating arms 32. The first end of the fourth rotating member 322 is rotatably connected to the second connecting member 321 via a second pin 323, and the second end of the fourth rotating member 322 is a second arc-shaped plate, each second arc-shaped plate located in one second slot 310. The first pin 223 and the second pin 323 allow for better rotatable connections between the first connecting member 221 and the third rotating member 222, and between the second connecting member 321 and the fourth rotating member 322. Through the cooperation of the first arc plate and the first slot 210, and the cooperation of the second arc plate and the second slot 310, the third rotating member 222 can be better rotated and connected to the first body 21, and the fourth rotating member 322 can be better rotated and connected to the second body 31.

[0084] For example, the first slot 210 is located on the top surface of the first housing, that is, on top of the first placement slot. The second slot 310 is located on the top surface of the second housing, that is, on top of the second placement slot.

[0085] For example, both the first slot 210 and the second slot 310 are elongated slots, and the walls of both slots are arc-shaped. The length direction of the first slot 210 is parallel to the rotation axis of the first rotating arm 22, and the length direction of the second slot 310 is parallel to the rotation axis of the second rotating arm 32. This allows the first arc-shaped plate and the first slot 210, and the second arc-shaped plate and the second slot 310 to better cooperate, so that each pair of first rotating arms 22 can be better rotatably connected to both sides of the first body 21, and each pair of second rotating arms 32 can be better rotatably connected to both sides of the second body 31.

[0086] For example, the first slot 210 can be understood as having a first strip-shaped protrusion on the top surface of the first housing and near the bottom surface of the first housing. The length direction of the first strip-shaped protrusion is parallel to the rotation axis of the first rotating arm 22, and the cross-sectional shape of the first strip-shaped protrusion is arc-shaped or semi-circular in a section perpendicular to the length direction of the first strip-shaped protrusion. Two first strip-shaped openings are respectively provided on both sides of the first strip-shaped protrusion to form a first slot 210. The second slot 310 can be understood as having a second strip-shaped protrusion on the top surface of the second housing and near the bottom surface of the second housing. The length direction of the second strip-shaped protrusion is parallel to the rotation axis of the second rotating arm 32, and the cross-sectional shape of the second strip-shaped protrusion is arc-shaped or semi-circular in a section perpendicular to the length direction of the second strip-shaped protrusion. Two second strip-shaped openings are respectively provided on both sides of the second strip-shaped protrusion to form a second slot 310.

[0087] It should be noted that the arrangement of the third rotating member 222 and the first main body 21, and the arrangement of the fourth rotating member 322 and the second main body 31 in the embodiments of this disclosure are only examples. In other embodiments, the third rotating member 222 and the first main body 21, and the fourth rotating member 322 and the second main body 31 can also adopt other arrangement methods, as long as the function of rotating the second end of the third rotating member 222 to the first main body 21 and rotating the second end of the fourth rotating member 322 to the second main body 31 can be achieved. This disclosure does not limit this.

[0088] For example, the first connector 221 further includes a third connecting portion 2212, which is connected to the first connecting bar 2210, and a first pin 223 passes through the third connecting portion 2212 and the first end of the third rotating member 222. The second connector 321 further includes a fourth connecting portion 3212, which is connected to the second connecting bar 3210, and a second pin 323 passes through the fourth connecting portion 3212 and the first end of the fourth rotating member 322.

[0089] For example, the first connector 221 has three third connecting portions 2212 that are spaced apart and arranged opposite to each other, and the first end of the third rotating member 222 is bifurcated between two adjacent third connecting portions 2212. The second connector 321 has three fourth connecting portions 3212 that are spaced apart and arranged opposite to each other, and the first end of the fourth rotating member 322 is bifurcated between two adjacent fourth connecting portions 3212.

[0090] In other embodiments, the number of third connecting parts 2212 and their arrangement with the third rotating member 222, and the number of fourth connecting parts 3212 and their arrangement with the fourth rotating member 322 can be adjusted according to actual needs, as long as the function of rotating the first end of the third rotating member 222 to the first connecting member 221 and rotating the first end of the fourth rotating member 322 to the second connecting member 321 can be realized. This disclosure does not limit this.

[0091] For example, the third connecting portion 2212 is strip-shaped, and the fourth connecting portion 3212 is strip-shaped. In other embodiments, the third connecting portion 2212 and the fourth connecting portion 3212 may also be other shapes, and this disclosure does not limit them.

[0092] In this embodiment, a first motor 240 can drive a connected first synchronous gear 23 and another meshing first synchronous gear 23 to rotate, thereby driving at least one pair of first rotating arms 22 on both sides of the first main body 21 to rotate, thus controlling the rotation of the first support plate 10 and the second support plate 11 connected to the first rotating arms 22. A second motor 340 can drive a connected second synchronous gear 33 and another meshing second synchronous gear 33 to rotate, thereby driving at least one pair of second rotating arms 32 on both sides of the second main body 31 to rotate, thus controlling the rotation of the second support plate 11 and the third support plate 12 connected to the second rotating arms 32. In this way, the display device can be switched between a folded state and an unfolded state, and the first motor 240 and the second motor 340 can be activated and deactivated simultaneously, thereby precisely controlling the bending angle of the display device.

[0093] As shown in Figure 2, the first bending assembly 20 includes two pairs of first rotating arms 22, which are located at opposite ends of the first main body 21, and the rotation axes of each first rotating arm 22 are parallel to each other. The second bending assembly 30 includes two pairs of second rotating arms 32, which are located at opposite ends of the second main body 31, and the rotation axes of each second rotating arm 32 are parallel to each other.

[0094] By setting two pairs of first rotating arms 22 at opposite ends of the first main body 21 and two pairs of second rotating arms 32 at opposite ends of the second main body 31, the rotational stability of the first bending assembly 20 and the second bending assembly 30 can be improved.

[0095] For example, the first bending assembly 20 includes two pairs of first co-moving gears 23, each pair of first co-moving gears 23 being located between a pair of first rotating arms 22. The second bending assembly 30 includes two pairs of second co-moving gears 33, each pair of second co-moving gears 33 being located between a pair of second rotating arms 32.

[0096] In this embodiment of the present disclosure, the first bending assembly 20 includes two first driving units 24, each first driving unit 24 being used to drive a pair of first rotating arms 22 to rotate. The second bending assembly 30 includes two second driving units 34, each second driving unit 34 being used to drive a pair of second rotating arms 32 to rotate.

[0097] In other embodiments, the first bending assembly 20 may also include only one first driving unit 24, which simultaneously drives two pairs of first rotating arms 22 to rotate. The second bending assembly 30 may also include only one second driving unit 34, which simultaneously drives two pairs of second rotating arms 32 to rotate; this disclosure does not limit this.

[0098] Figure 11 is a schematic diagram of another support assembly provided in an embodiment of this disclosure. Figure 11 shows the structure of the side of the support assembly that contacts the flexible display panel. The support assembly in Figure 11 differs from the support assemblies in Figures 2, 6 to 8 in that the driving method is different. As shown in Figure 11, the first driving unit 24 includes a pair of first torsion springs 242, each first torsion spring 242 being connected to a corresponding first rotating arm 22. The second driving unit 34 includes a pair of second torsion springs 342, each second torsion spring 342 being connected to a corresponding second rotating arm 32. In the folded state, both the first torsion spring 242 and the second torsion spring 342 are used to provide a first torque so that the display device can switch to the unfolded state. In the folded state, the first torque provided by the first torsion springs 242 and the second torsion springs 342 enables the display device to automatically switch to the unfolded state.

[0099] Figure 12 is a partial structural schematic diagram of a support component provided in an embodiment of the present disclosure. Figure 12 can represent a partial structure of the first bending component. Figure 13 is a partial structural schematic diagram of a display device in an unfolded state provided in an embodiment of the present disclosure. Figure 13 can represent a partial structural schematic diagram of the unfolded state at section line E1 in Figure 11. Figure 14 is a partial structural schematic diagram of a support component provided in an embodiment of the present disclosure. Figure 14 can represent a partial structure of the second bending component. Figure 15 is a partial structural schematic diagram of a display device in an unfolded state provided in an embodiment of the present disclosure. Figure 15 can represent a partial structural schematic diagram of the unfolded state at section line E2 in Figure 11. As shown in Figures 11 to 15, the first torsion spring 242 includes a first torsion spring arm 2421, a second torsion spring arm 2422, and two first body parts 2423. The two first body parts 2423 are respectively sleeved at both ends of the axial direction of the first gear part 2202, and the first body parts 2423 are coaxially connected to the first gear part 2202. The first torsion spring arm 2421 is connected to the first rotating plate part 2201, and the second torsion spring arm 2422 is fixed on the first body 21. The second torsion spring 342 includes a third torsion spring arm 3421, a fourth torsion spring arm 3422, and two second body parts 3423. The two second body parts 3423 are respectively sleeved at both ends of the axial direction of the second gear part 3202, and the second body parts 3423 are coaxially connected to the second gear part 3202. The third torsion spring arm 3421 is connected to the second rotating plate part 3201, and the fourth torsion spring arm 3422 is fixed on the second body 31. The first torsion spring 242 and the second torsion spring 342 are configured in this way to facilitate the rotation of the first rotating member 220 and the second rotating member 320.

[0100] For example, the second torsion spring arm 2422 is fixed to the bottom surface of the first housing, i.e., the bottom of the first placement groove. The fourth torsion spring arm 3422 is fixed to the bottom surface of the second housing, i.e., the bottom of the second placement groove.

[0101] Figure 16 is a structural schematic diagram of a support assembly provided in an embodiment of this disclosure. Figure 16 can show the structure of the support assembly on the side away from the flexible display panel. Figure 17 is a partial structural schematic diagram of a support assembly provided in an embodiment of this disclosure. As shown in Figures 11 to 17, the support assembly 2 further includes a first magnetic body 40, a second magnetic body 41, and a third magnetic body 42. The first magnetic body 40 is located on the surface of the first support plate 10 away from the flexible display panel, the second magnetic body 41 is located on the surface of the second support plate 11 away from the flexible display panel, and the third magnetic body 42 is located on the surface of the third support plate 12 away from the flexible display panel. In the folded state, the first magnetic body 40, the second magnetic body 41, and the third magnetic body 42 are used to provide a first locking force so that the display device can maintain the folded state. The first locking force is greater than the sum of the first torques provided by the first torsion spring 242 and the second torsion spring 342. The sum of the attraction between the first magnet 40, the second magnet 41, and the third magnet 42, i.e., the magnetic attraction, can provide a first locking force in the folded state so that the display device can remain in the folded state. When an external force is applied such that the sum of the external force and the first torque provided by the first torsion spring 242 and the second torsion spring 342 is greater than the first locking force, the display device can be switched to the unfolded state.

[0102] Figure 18 is a structural schematic diagram of a display device provided in an embodiment of the present disclosure in a folded state. Figure 19 is a structural schematic diagram of a display device provided in an embodiment of the present disclosure in a folded state. Referring to Figures 11 to 19, the support assembly 2 further includes a switch assembly 50, which is connected to the first magnetic body 40. The switch assembly 50 is used to move the first magnetic body 40 from a first position to a second position under the action of an external force. When the first magnetic body 40 is in the first position, the sum of the attractive forces between the first magnetic body 40, the second magnetic body 41, and the third magnetic body 42 in the folded state is the first locking force. When the first magnetic body 40 is in the second position, the sum of the attractive forces between the first magnetic body 40, the second magnetic body 41, and the third magnetic body 42 in the folded state is less than the sum of the first torques provided by the first torsion spring 242 and the second torsion spring 342. The movement of the first magnetic body 40 can be controlled by the switch assembly 50. Since the sum of the attraction between the first magnetic body 40, the second magnetic body 41 and the third magnetic body 42 is affected by the position, the magnitude of the attraction between the magnetic bodies can be changed, so that the sum of the first torque provided by the first torsion spring 242 and the second torsion spring 342 is greater. Thus, the display device can be switched between the folded state and the unfolded state by the switch assembly 50, which improves the convenience of operation.

[0103] In Figure 18, the first magnetic body 40 is located in the first position, and in Figure 19, the first magnetic body 40 is located in the second position. Referring to Figures 11 to 19, the switch assembly 50 includes a pressing member 51, a lever 52, and a resilient reset member 53. The first end of the lever 52 abuts against the pressing member 51, the second end of the lever 52 is connected to the first magnetic body 40, and the middle part of the lever 52 is rotatably connected to the first support plate 10. The first end of the resilient reset member 53 is fixed to the first support plate 10, and the second end of the resilient reset member 53 is connected to the first magnetic body 40. The resilient reset member 53 is used to apply a reset force to the first magnetic body 40 when the first magnetic body 40 is in the second position, so that the first magnetic body 40 moves from the second position to the first position.

[0104] The elastic reset element 53 is a component that uses the elastic properties of materials to store and release energy. When an external force is applied to the elastic reset element 53, the elastic reset element 53 will deform and store energy; when the external force is removed, the elastic reset element 53 will release the stored energy and automatically return to its original shape, thereby realizing the function of automatic reset.

[0105] The cooperation of the pressing member 51, the lever 52 and the elastic reset member 53 can better control the movement of the first magnetic body 40. When the first magnetic body 40 is in the first position in the folded state, the sum of the attraction between the first magnetic body 40, the second magnetic body 41 and the third magnetic body 42 is large, equal to the first locking force, and greater than the sum of the first torque provided by the first torsion spring 242 and the second torsion spring 342, so the display device can maintain the folded state. In the folded state, the first magnetic body 40 can be moved to the second position by pressing the button 51 and using the lever 52. The sum of the attraction between the first magnetic body 40, the second magnetic body 41, and the third magnetic body 42 is small, less than the sum of the first torque provided by the first torsion spring 242 and the second torsion spring 342. Under the action of the first torsion spring 242 and the second torsion spring 342, the connected first rotating plate 2201 and the second rotating plate 3201 can be driven to rotate, thereby driving at least one pair of first rotating arms 22 on both sides of the first main body 21 to rotate, and driving at least one pair of second rotating arms 23 on both sides of the second main body 31 to rotate, so as to control the rotation of the first support plate 10, the second support plate 11, and the third support plate 12. In this way, the display device will switch to the unfolded state, and at this time, the elastic reset member 53 will deform and store energy. When the external force applied to the pressing member 51 is stopped in the unfolded state, the elastic reset member 53 will release the stored energy and automatically return to its original shape. That is, the first magnetic body 40 can be moved back to the first position through the elastic reset member 53, so that the display device can still be manually switched to the folded state and kept in the folded state.

[0106] For example, the sliding stroke of the first magnetic body 40 when it moves from the first position to the second position is 5 mm.

[0107] For example, the lever 52 includes a first sub-lever 520, a second sub-lever 521, and a third sub-lever 522. The first end of the first sub-lever 520 abuts against the pressing member 51, and the second end of the first sub-lever 520 is connected to the first magnetic body 40. The first end of the second sub-lever 521 is connected to the first end of the first sub-lever 520, and the second end of the second sub-lever 521 is rotatably connected to the first support plate 10. The first end of the third sub-lever 522 is connected to the second end of the second sub-lever 521 and is rotatably connected to the first support plate 10. The second end of the third sub-lever 522 is connected to the middle portion of the first sub-lever 521, and the extending directions of the first sub-lever 520, second sub-lever 521, and third sub-lever 522 all intersect, forming a near-triangular arrangement.

[0108] For example, the elastic reset member 53 includes two springs, the length direction of which is parallel to the rotation axis of the first rotating arm 22, the first end of each spring is fixed to the first support plate 10, and the second end of each spring is connected to the first magnetic body 40.

[0109] For example, the switch assembly 50 further includes a sliding structure 54, which is slidably connected to the first support plate 10. The first magnetic body 40 is fixed in the sliding structure 54, the second end of the first sub-rod 520 in the lever 52 abuts against the sliding structure 54, and the second end of the elastic reset member 53 abuts against the sliding structure 54. By providing the sliding structure 54, the first magnetic body 40 can slide on the first support plate 10, thereby better realizing the movement of the first magnetic body 40 between the first position and the second position.

[0110] For example, the switch assembly 50 further includes a pair of sliding limiting structures 55, which are fixed to the first support plate 10. Each sliding limiting structure 55 has a groove, which is elongated and its length direction is perpendicular to the rotation axis of the first rotating arm 22. The two ends of the sliding structure 54 are respectively located in the grooves of the pair of sliding limiting structures 55.

[0111] It should be noted that the configuration of the switch assembly 50 in this embodiment is merely an example. In other embodiments, the switch assembly 50 may employ other mechanical structures, as long as they can achieve the function of moving the first magnetic body 40 from the first position to the second position under the action of external force. This disclosure does not impose any limitations on this.

[0112] For example, the first magnetic body 40, the second magnetic body 41 and the third magnetic body 42 each include a plurality of magnets arranged in a direction parallel to the rotation axis of the first rotating arm 22.

[0113] Figure 20 is a schematic diagram of a display device provided in an embodiment of this disclosure. As shown in Figure 20, the support assembly 2 further includes a support frame 60, which is located on the surface of the second support plate 11 away from the flexible display panel 1, and one end of the support frame 60 is rotatably connected to the second support plate 11. In this way, the second support plate 11 and the support frame 60 can provide a better support effect, allowing the display device to be placed more stably.

[0114] For example, the first support plate 10 includes a first support back plate and a first middle frame connected together, the second support plate 11 includes a second support back plate and a second middle frame connected together, and the third support plate 12 includes a third support back plate and a third middle frame connected together.

[0115] For example, the surface of the second support body in the second support plate 11 away from the flexible display panel 1 has a support frame placement groove.

[0116] Figure 21 is a schematic diagram of a display device provided in an embodiment of this disclosure. As shown in Figure 21, the display device includes any of the aforementioned display devices 1000 and a keyboard 1001, with the keyboard 1001 rotatably connected to the second support plate 11 of the display device 1000.

[0117] As shown in Figure 21, the keyboard 1001 includes a first sub-keyboard 1001a, a second sub-keyboard 1001b, and a third sub-keyboard 1001c. The first sub-keyboard 1001a and the third sub-keyboard 1001c are rotatably connected to opposite sides of the second sub-keyboard 1001b. The second sub-keyboard 1001b is rotatably connected to the second support plate 11, and the axis of rotation between the second sub-keyboard 1001b and the second support plate 11 is perpendicular to the axis of rotation between the first sub-keyboard 1001a and the second sub-keyboard 1001b, and the axis of rotation between the third sub-keyboard 1001c and the second sub-keyboard 1001b. By using the foldable keyboard 1001 in conjunction with the display device 1000, the display device 1000 can be folded into three sections, the keyboard 1001 into three sections, and then folded in half again. This helps to reduce the space occupied when storing the display device and improves its portability.

[0118] Optionally, the display device can be a product with foldable display and typing functions, such as a laptop, tablet, or mobile phone.

[0119] For example, the display device also includes a flexible connecting strip 1002, through which the second sub-keyboard 1001b is rotatably connected to the second support plate 11.

[0120] For example, at least one of the first sub-keyboard 1001a, the second sub-keyboard 1001b, and the third sub-keyboard 1001c has a touchscreen 1003 on its surface.

[0121] In this embodiment of the present disclosure, the surface of the second sub-keyboard 1001b has a touch screen 1003. In other embodiments, the touch screen 1003 may also be provided on the surface of other sub-keyboards. This disclosure does not limit this.

[0122] Figure 22 is a structural schematic diagram of a display device provided in an embodiment of this disclosure. As shown in Figure 22, when both the display device 1000 and the keyboard 1001 are in the unfolded state, the display device 1000 and the keyboard 1001 can also be unfolded relative to each other, and the display device can be stably placed by relying on the keyboard 1001, the first support plate 10, the second support plate 11, the third support plate 12 and the support frame 60.

[0123] Figure 23 is a schematic diagram of a display device provided in an embodiment of this disclosure. As shown in Figure 23, when both the display device 1000 and the keyboard 1001 are in an unfolded state, the display device 1000 and the keyboard 1001 can be rotated and folded for placement. In this placement state, the display device may be in a sleep state, etc.

[0124] Figure 24 is a structural schematic diagram of a display device in a folded state according to an embodiment of the present disclosure. Figure 25 is a structural schematic diagram of a display device in a folded state according to an embodiment of the present disclosure. As shown in Figures 24 and 25, in the folded state, the second sub-keyboard 1001b, the first sub-keyboard 1001a, and the third sub-keyboard 1001c of the keyboard 1001 are stacked sequentially in a G-shape. Furthermore, in the folded state, the second sub-keyboard 1001b, the first sub-keyboard 1001a, the third sub-keyboard 1001c, the third support plate 12, the first support plate 10, and the second support plate 11 of the display device are stacked sequentially. That is, by cooperating with the foldable keyboard 1001 and the display device 1000, the display device 1000 can be folded three times, the keyboard 1001 can be folded three times, and then folded in half again. In this state, the space occupied by the display device is approximately one-sixth of that of the display device in Figure 22, which helps to reduce the space occupied when the display device is stored and improves the portability of the display device.

[0125] The above description is not intended to limit this disclosure in any way. Although this disclosure has been disclosed above through embodiments, it is not intended to limit this disclosure. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this disclosure. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this disclosure without departing from the content of the technical solution of this disclosure shall still fall within the scope of the technical solution of this disclosure.

Claims

1. A display device, characterized in that, The system includes a flexible display panel and a support assembly. The support assembly is located on the non-display surface of the flexible display panel. The support assembly includes a first support plate, a second support plate, a third support plate, a first bending assembly, and a second bending assembly. The first bending assembly includes a first body and at least one pair of first rotating arms, each pair of first rotating arms being rotatably connected to both sides of the first body and respectively connected to the first support plate and the second support plate; The second bending assembly includes a second body and at least one pair of second rotating arms, each pair of second rotating arms being rotatably connected to both sides of the second body and respectively connected to the second support plate and the third support plate; The support assembly is configured to switch between a folded state and an unfolded state. In the folded state, the second support plate, the first support plate, and the third support plate are stacked sequentially, and the minimum distance between each pair of first rotating arms is less than the minimum distance between each pair of second rotating arms. In the unfolded state, the first support plate, the second support plate, and the third support plate are located on the same plane.

2. The display device according to claim 1, characterized in that, The first bending assembly further includes at least one pair of first co-moving gears, each pair of first co-moving gears meshing with each other, each pair of first co-moving gears being located between a pair of first rotating arms, the first rotating arm including a first rotating member, the first rotating member having a connected first rotating plate portion and a first gear portion, the first gear portion meshing with the first co-moving gear, the first rotating plate portion including a bending plate, and in a direction perpendicular to the non-display surface, the minimum distance between the end of the bending plate away from the first gear portion and the non-display surface is less than the minimum distance between the end of the bending plate near the first gear portion and the non-display surface; The second bending assembly further includes at least one pair of second co-moving gears, each pair of second co-moving gears meshing with each other, each pair of second co-moving gears being located between a pair of second rotating arms, the second rotating arm including a second rotating member, the second rotating member having a connected second rotating plate portion and a second gear portion, the second gear portion meshing with the second co-moving gear, the second rotating plate portion including a flat plate, the flat plate being parallel to the non-display surface.

3. The display device according to claim 2, characterized in that, The diameter of the first co-moving gear is smaller than the diameter of the second co-moving gear.

4. The display device according to claim 3, characterized in that, The first bending assembly further includes at least one first driving unit, which is fixed to the first body and is used to drive at least one of the first rotating arms to rotate. The second bending assembly further includes at least one second driving unit, which is fixed to the second body and is used to drive at least one of the second rotating arms to rotate.

5. The display device according to claim 4, characterized in that, The first drive unit includes a first motor and a first transmission structure, wherein the output shaft of the first motor is connected to a first co-moving gear through the first transmission structure; The second drive unit includes a second motor and a second transmission structure, wherein the output shaft of the second motor is connected to a second co-moving gear through the second transmission structure.

6. The display device according to claim 5, characterized in that, The first transmission structure includes a coupling, and the output shaft of the first motor is coaxially connected to a first co-moving gear through the coupling; The second transmission structure includes a first transmission gear and a second transmission gear. The output shaft of the second motor is coaxially connected to the first transmission gear. The first transmission gear meshes with the second transmission gear, and the second transmission gear is coaxially connected to a second co-moving gear.

7. The display device according to claim 4, characterized in that, The first drive unit includes a pair of first torsion springs, each of which is connected to a corresponding first rotating arm; The second drive unit includes a pair of second torsion springs, each of the second torsion springs being connected to a corresponding second rotating arm; In the folded state, both the first torsion spring and the second torsion spring are used to provide a first torque so that the display device can switch to the unfolded state.

8. The display device according to claim 7, characterized in that, The first torsion spring includes a first torsion spring arm, a second torsion spring arm, and two first body parts. The two first body parts are respectively sleeved on both ends of the axial direction of the first gear part, and the first body parts are coaxially connected to the first gear part. The first torsion spring arm is connected to the first rotating plate part, and the second torsion spring arm is fixed on the first body. The second torsion spring includes a third torsion spring arm, a fourth torsion spring arm, and two second body parts. The two second body parts are respectively sleeved on both ends of the axial direction of the second gear part, and the second body parts are coaxially connected to the second gear part. The third torsion spring arm is connected to the second rotating plate part, and the fourth torsion spring arm is fixed on the second body.

9. The display device according to claim 8, characterized in that, The support assembly further includes a first magnetic body, a second magnetic body, and a third magnetic body. The first magnetic body is located on the surface of the first support plate that is away from the flexible display panel, the second magnetic body is located on the surface of the second support plate that is away from the flexible display panel, and the third magnetic body is located on the surface of the third support plate that is away from the flexible display panel. In the folded state, the first magnet, the second magnet, and the third magnet provide a first locking force to enable the display device to maintain the folded state, wherein the first locking force is greater than the sum of the first torques provided by the first torsion spring and the second torsion spring.

10. The display device according to claim 9, characterized in that, The support assembly further includes a switch assembly, which is connected to the first magnetic body and is used to move the first magnetic body from a first position to a second position under the action of an external force. When the first magnetic body is in the first position, the sum of the attractive forces between the first magnetic body, the second magnetic body, and the third magnetic body in the folded state is the first locking force; When the first magnet is in the second position, the sum of the attractive forces between the first magnet, the second magnet, and the third magnet in the folded state is less than the sum of the first torques provided by the first torsion spring and the second torsion spring.

11. The display device according to claim 10, characterized in that, The switch assembly includes a pressing element, a lever, and a resilient reset element. The first end of the lever abuts against the pressing member, the second end of the lever is connected to the first magnetic body, and the middle part of the lever is rotatably connected to the first support plate. The first end of the elastic reset member is fixed to the first support plate, and the second end of the elastic reset member is connected to the first magnetic body. The elastic reset member is used to apply a reset force to the first magnetic body when the first magnetic body is in the second position, so that the first magnetic body moves from the second position to the first position.

12. The display device according to any one of claims 2 to 11, characterized in that, The first rotating arm further includes a first connecting member and a third rotating member. The first connecting member is slidably connected to the end of the first rotating plate that is away from the first gear. The first end of the third rotating member is rotatably connected to the first connecting member, and the second end of the third rotating member is rotatably connected to the first main body. The second rotating arm further includes a second connecting member and a fourth rotating member. The second connecting member is slidably connected to the end of the second rotating plate that is away from the second gear. The first end of the fourth rotating member is rotatably connected to the second connecting member, and the second end of the fourth rotating member is rotatably connected to the second main body.

13. The display device according to claim 12, characterized in that, The first body has at least one pair of first slots, each pair of first slots is correspondingly provided with a pair of first rotating arms, the first end of the third rotating member is rotatably connected to the first connecting member through a first pin, and the second end of the third rotating member is a first arc plate, each first arc plate is located in one of the first slots; The second body has at least one pair of second slots, each pair of second slots is correspondingly provided with a pair of second rotating arms, the first end of the fourth rotating member is rotatably connected to the second connecting member through a second pin, the second end of the fourth rotating member is a second arc plate, and each second arc plate is located in a second slot.

14. The display device according to any one of claims 1 to 11 and claim 13, characterized in that, The first bending assembly includes two pairs of first rotating arms, which are located at opposite ends of the first body, and the rotation axes of each first rotating arm are parallel to each other. The second bending assembly includes two pairs of second rotating arms, which are located at opposite ends of the second body, and the rotation axes of each second rotating arm are parallel to each other.

15. The display device according to any one of claims 1 to 11 and claim 13, characterized in that, The support assembly further includes a support frame located on the surface of the second support plate away from the flexible display panel, and one end of the support frame is rotatably connected to the second support plate.

16. A display device, characterized in that, It includes a display device and a keyboard as described in any one of claims 1 to 15, wherein the keyboard is rotatably connected to a second support plate of the display device.

17. The display device according to claim 16, characterized in that, The keyboard includes a first sub-keyboard, a second sub-keyboard, and a third sub-keyboard. The first sub-keyboard and the third sub-keyboard are rotatably connected to opposite sides of the second sub-keyboard. The second sub-keyboard is rotatably connected to the second support plate, and the rotation axis between the second sub-keyboard and the second support plate is perpendicular to the rotation axis between the first sub-keyboard and the second sub-keyboard and the rotation axis between the third sub-keyboard and the second sub-keyboard.

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