Adjustable bezels and foldable displays

Abstract

An adjustable frame and a foldable display device are provided. The adjustable frame comprises a central axis (2), a rotating frame (3), a movable frame (4) and an adjusting mechanism (5); the rotating frame (3) is rotatably connected to the central axis (2); the movable frame (4) is arranged on a side of the rotating frame (3) away from the central axis (2); one end of the adjusting mechanism (5) is connected to the central axis (2), and the other end is connected to the movable frame (4); the adjusting mechanism (5) is used to adjust the distance between the movable frame (4) and the rotating frame (3) as the rotating frame (3) and the movable frame (4) rotate, and the frame is divided into the rotating frame (3) and the movable frame (4); and the adjusting mechanism (5) adjusts the distance between the movable frame (4) and the rotating frame (3) as the rotating frame (3) and the movable frame (4) rotate, thereby completing the adjustment of the width of the adjustable frame to meet the requirements of consumers.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to an adjustable frame and a foldable display device including the adjustable frame. Background Art

[0002] With the advancement of technology and the development of society, flexible display panels have gradually come into the field of vision of consumers. Bendable and rollable display panels not only facilitate consumers' lives but also bring consumers a new user experience.

[0003] However, the width of the frame of the existing bendable display device cannot be adjusted as the display panel is bent.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] The purpose of the present disclosure is to provide an adjustable frame whose frame width can be adjusted and a foldable display device including the adjustable frame, thereby overcoming the deficiency of the above-mentioned prior art that the frame width cannot be adjusted at least to a certain extent.

[0006] According to one aspect of the present disclosure, there is provided an adjustable frame, comprising:

[0007] Middle axis;

[0008] A rotating frame rotatably connected to the central axis;

[0009] A movable frame, arranged on a side of the rotating frame away from the central axis;

[0010] An adjusting mechanism has one end connected to the central axis and the other end connected to the movable frame, and the adjusting mechanism is used to adjust the distance between the movable frame and the rotating frame as the rotating frame and the movable frame rotate.

[0011] In an exemplary embodiment of the present disclosure, the adjustment mechanism comprises:

[0012] A fixed shaft, which is cylindrical and fixed to the middle shaft portion, and the fixed shaft is coaxially arranged with the rotating shaft of the rotating frame;

[0013] The bendable connecting member has a first end and a second end that are relatively arranged, wherein the first end is fixed to the central axis portion, and the second end is connected to the movable frame. The bendable connecting member can be wound around the cylindrical surface of the fixed axis as the rotating frame and the movable frame rotate when the adjustable frame bends outward, thereby driving the movable frame to move toward the rotating frame.

[0014] In an exemplary embodiment of the present disclosure, an annular groove is provided on the fixed shaft, the annular groove is coaxially arranged with the fixed shaft, and the bendable connecting member can be wound in the annular groove.

[0015] In an exemplary embodiment of the present disclosure, the adjustment mechanism further includes:

[0016] The fixing portion is fixed on the central axis portion and is located on the side of the fixing axis away from the rotating frame when in a flattened state. The first end of the bendable connecting member is fixed to the fixing portion so that when the adjustable frame is folded outward, the bendable connecting member is wrapped around at least a quarter of an arc on the fixing axis.

[0017] In an exemplary embodiment of the present disclosure, the adjustment mechanism further includes:

[0018] The limiting plate is arranged on a side of the fixed axis close to the flexible display panel and is located on a side of the fixed axis close to the fixed portion, and the limiting plate extends to a position where the bendable connecting member is tangent to the fixed axis.

[0019] In an exemplary embodiment of the present disclosure, the adjustment mechanism further includes:

[0020] The fixing portion is fixed on the central axis portion and is located on a side of the fixed axis away from the flexible display panel. The first end of the flexible connector is fixed to the fixing portion, so that when the adjustable frame is flattened, the flexible connector is wrapped around at least a quarter of an arc on the fixed axis, and when the adjustable frame is folded outward, the flexible connector is wrapped around at least a half of an arc on the fixed axis.

[0021] In an exemplary embodiment of the present disclosure, the adjustment mechanism further includes:

[0022] A slide groove is fixed to the rotating frame, and the extending direction of the slide groove is consistent with the moving direction of the movable frame;

[0023] A slider, disposed in the slide groove and fixedly connected to the second end of the bendable connector and the movable frame;

[0024] The elastic member is arranged between the slider and the slide groove, and is used for driving the slider and the movable frame to move when the bendable connecting member is relaxed.

[0025] In an exemplary embodiment of the present disclosure, a baffle is provided at one end of the slide slot close to the middle axis portion, and the elastic member is a compression spring connected between the baffle and the slider.

[0026] In an exemplary embodiment of the present disclosure, a baffle is provided at one end of the slide slot away from the middle axis portion, and the elastic member is a tension spring connected between the baffle and the sliding block.

[0027] In an exemplary embodiment of the present disclosure, a mounting post is provided on the sliding block, an extending direction of the mounting post is consistent with a moving direction of the movable frame, and the elastic member is disposed outside the mounting post.

[0028] In an exemplary embodiment of the present disclosure, the movable frame is configured as a rectangular shell, a side of the shell close to the rotating frame is provided with an opening, and an end of the rotating frame away from the central axis is inserted into the shell through the opening.

[0029] In an exemplary embodiment of the present disclosure, the adjustment mechanism further includes:

[0030] A positioning column, fixed to the inner wall of the shell;

[0031] A mounting plate fixed to the positioning column, the second end of the bendable connector being fixed to the mounting plate;

[0032] A long strip-shaped sliding hole is arranged on the side wall of the sliding groove close to the positioning column. The length direction of the sliding hole is consistent with the sliding direction of the slider. The mounting plate passes through the sliding hole and is fixedly connected to the slider.

[0033] In an exemplary embodiment of the present disclosure, the bendable connecting member is a steel wire rope or a nylon rope.

[0034] In an exemplary embodiment of the present disclosure, two adjusting mechanisms are provided, and the two adjusting mechanisms are correspondingly arranged at opposite ends of the middle axis portion.

[0035] In an exemplary embodiment of the present disclosure, the number of the rotating frames is two, and the two rotating frames are rotatably connected to opposite sides of the central axis;

[0036] The movable frame is provided with two, and one movable frame is provided on a side of each rotating frame away from the central axis;

[0037] The adjusting mechanisms are arranged in four, two of which form a group, and a group of the adjusting mechanisms is connected to one of the movable frames.

[0038] According to one aspect of the present disclosure, there is provided a foldable display device, comprising:

[0039] An adjustable border as described in any of the above;

[0040] The flexible display panel is arranged on a side of the adjustable frame away from the adjusting mechanism.

[0041] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by the practice of the present disclosure.

[0042] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0044] Figure 1 is a schematic diagram of the structure of a foldable display device when folded inward in the related art;

[0045] Figure 2 is a schematic diagram of the structure of a foldable display device in the related art when it is flattened;

[0046] Figure 3 is a schematic diagram of the structure of a foldable display device in the related art when it is folded outward;

[0047] Figure 4 is a schematic structural diagram of an exemplary embodiment of an adjustable frame of the present invention in a flattened state;

[0048] Figure 5 yes Figure 4 A schematic diagram of the structure of the regulating mechanism;

[0049] Figure 6 yes Figure 4 A schematic diagram of the structure when the adjustable frame is in an outward folded state;

[0050] Figure 7 yes Figure 6 A schematic diagram of the structure of the regulating mechanism;

[0051] Figure 8 yes Figure 4 A schematic diagram of the structure of the middle axis portion;

[0052] Fig. 9 yes Figure 8 A partial enlarged schematic diagram of the middle panel part;

[0053] Fig.10 yes Figure 8 Schematic diagram of the structure of the steel wire rope after bending;

[0054] Fig.11 yes Figure 4 A schematic diagram of the structure of the rotating frame and the movable frame in FIG.

[0055] Fig.12 yes Figure 4 Schematic diagram of the regulating principle of the regulating mechanism;

[0056] Fig.13 is a schematic diagram of the adjustment principle of another exemplary embodiment of the adjustable border of the present invention;

[0057] Fig.14 yes Figure 5 A schematic diagram of the structure of the movable frame and the part of the adjustment mechanism located within the movable frame;

[0058] Fig.15 yes Fig.14 A schematic diagram of the structure after the slider and the mounting plate are connected;

[0059] Fig.16 yes Fig.14 A schematic diagram of the structure of the chute in FIG.

[0060] Fig.17 It is a schematic diagram of the structure of the elastic member, the mounting plate and the slide groove in a flattened state;

[0061] Fig.18 It is a structural schematic diagram of the elastic member, the mounting plate and the slide groove in the outward folded state.

[0062] The main components in the figure are described as follows:

[0063] 1. Flexible display panel;

[0064] 2. middle axis; 21. support plate; 22. support bar; 23. end panel; 24. first through hole; 25. second through hole; 26. third through hole;

[0065] 3. Rotating frame; 31. Connecting plate; 32. Supporting plate; 33. Rotating shaft;

[0066] 4. movable frame; 41. bottom plate; 42. top plate; 43. side plate;

[0067] 5. Adjustment mechanism; 51. Steel wire rope; 52. Fixed shaft; 53. Annular groove; 54. Fourth through hole; 55. Limiting plate; 56. Fixed part; 57. Fifth through hole; 58. Slide groove; 581. Bottom wall; 582. Side wall; 583. Slide hole; 584. Baffle; 59. Slider; 60. Elastic member; 61. Positioning column; 62. Mounting plate; 63. Connecting column; 64. Mounting column; 65. Seventh through hole; 66. Sixth through hole;

[0068] 7. Middle frame. DETAILED DESCRIPTION

[0069] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0070] The 360° foldable display device is divided into three special position states: outward folding, flattening, and inward folding. Outward folding means that the flexible display panel 1 is outside after folding 360°, and inward folding means that the flexible display panel 1 is inside after folding 360°. The foldable display device may include a central axis 2, and two middle frames 7 connected one-to-one on both sides of the central axis 2. The flexible display panel 1 is arranged on the central axis 2 and the two middle frames 7. The two middle frames 7 can rotate relative to the central axis 2 to achieve outward folding, flattening, and inward folding of the foldable display device. When the foldable display device changes from inward folding to outward folding, the flexible display panel 1 has a certain slippage relative to the middle frame 7, and the distance P between the flexible display panel 1 and the middle frame 7 gradually increases. The distance P refers to the distance between the end face of the flexible display panel 1 and the end face of the middle frame 7. Refer to Figure 1 As shown, when the foldable display device is folded inward, the distance P between the flexible display panel 1 and the middle frame 7 is the smallest, and at this time the distance P is substantially zero, that is, the flexible display panel 1 and the middle frame 7 are substantially attached, so the distance P cannot be marked in the figure. Figure 2 As shown, when the foldable display device is flattened, the distance P between the flexible display panel 1 and the middle frame 7 is in an intermediate state. Figure 3 As shown, when the foldable display device is folded outward, the distance P between the flexible display panel 1 and the middle frame 7 is the largest. It should be noted that Figure 1 , Figure 2 and Figure 3 It is mainly for illustrating the structural relationship between the middle frame 7 and the flexible display panel 1 in the above three states, and therefore, some structures in the foldable display device are omitted.

[0071] This example implementation first provides an adjustable border. Figure 4 , Figure 5 , Figure 6 and Figure 7 The structure diagram of an example embodiment of an adjustable frame and an adjusting mechanism of the present invention is shown, the adjustable frame may include a central axis portion 2, a rotating frame 3, a movable frame 4 and an adjusting mechanism 5; the rotating frame 3 is rotatably connected to the central axis portion 2; the movable frame 4 is arranged on a side of the rotating frame 3 away from the central axis portion 2; one end of the adjusting mechanism 5 is connected to the central axis portion 2, and the other end is connected to the movable frame 4, the adjusting mechanism 5 is used to adjust the spacing P1 between the movable frame 4 and the rotating frame 3 as the rotating frame 3 and the movable frame 4 rotate, and the spacing P1 can be the distance between any fixed point on the movable frame 4 and any fixed point on the rotating frame 3, for example, the distance between a side of the movable frame 4 away from the central axis portion 2 and an edge on the connecting plate 31 of the rotating frame 3.

[0072] In the adjustable frame of the present invention, the rotating frame 3 is rotatably connected to the central axis 2, the movable frame 4 is arranged on the side of the rotating frame 3 away from the central axis 2, one end of the adjusting mechanism 5 is connected to the central axis 2, and the other end is connected to the movable frame 4, and the adjusting mechanism 5 is used to adjust the distance between the movable frame 4 and the rotating frame 3 as the rotating frame 3 and the movable frame 4 rotate. The frame is segmented into the rotating frame 3 and the movable frame 4, and the distance between the movable frame 4 and the rotating frame 3 is adjusted by the adjusting mechanism 5 as the rotating frame 3 and the movable frame 4 rotate, thereby completing the adjustment of the width of the adjustable frame to meet the requirements of consumers.

[0073] In this example embodiment, the rotating frame 3 can be set to two, and the two rotating frames 3 can be rotatably connected to the opposite sides of the central axis 2. The movable frame 4 can also be set to two, and the two movable frames 4 are correspondingly arranged on the side of the two rotating frames 3 away from the central axis 2, that is, a movable frame 4 is arranged on the side of a rotating frame 3 away from the central axis 2. The adjustment mechanism 5 can be set to four, two adjustment mechanisms 5 are a group, and a group of adjustment mechanisms 5 is connected to a movable frame 4. The two adjustment mechanisms 5 in a group can be completely symmetrical. The two adjustment mechanisms 5 are correspondingly arranged at the opposite ends of the central axis 2, that is, an adjustment mechanism 5 is arranged at one end of the central axis 2. The two ends of the movable frame 4 can be adjusted at the same time by the two adjustment mechanisms 5, and the movable frame 4 can be adjusted in a balanced manner. Of course, it is also possible to set one adjustment mechanism 5, and three, four or more adjustment mechanisms 5 can also be set. After the flexible display panel 1 is installed on the adjustable frame, the parts of the flexible display panel 1 set on the two rotating frames 3 can be bent relative to the central axis 2.

[0074] Of course, in other example embodiments of the present invention, only one rotating frame 3 and one movable frame 4 may be provided, and the movable frame 4 is provided on the side of the rotating frame 3 away from the central axis 2, that is, the rotating frame 3 and the movable frame 4 are provided on one side of the central axis 2, and a fixed frame is provided on the other opposite side. In this case, only two adjustment mechanisms 5 are required, and the two adjustment mechanisms 5 are correspondingly provided at the opposite ends of the central axis 2, that is, one end of the central axis 2 is provided with an adjustment mechanism 5. The two ends of the movable frame 4 can be adjusted at the same time by the two adjustment mechanisms 5, and the movable frame 4 can be adjusted in a balanced manner. Of course, it is also possible to provide one adjustment mechanism 5, and three, four or more adjustment mechanisms 5 can also be provided. After the flexible display panel 1 is installed on the adjustable frame, only the part of the flexible display panel 1 provided on the rotating frame 3 can be bent relative to the central axis 2.

[0075] In this example implementation, refer to Figure 8 As shown, the middle axis part 2 may include a support plate 21, which is arranged in a strip shape, and two end panels 23 are connected one by one at both ends of the length direction of the support plate 21, and a side of the end panel 23 close to the flexible display panel 1 is arranged as an arc surface. A support bar 22 is arranged on the support plate 21, and the support bar 22 is arranged in a strip shape, and a side of the support bar 22 close to the flexible display panel 1 is arranged as an arc surface, which is used to support the flexible display panel 1. The length direction of the support bar 22 is consistent with the length direction of the support plate 21, and a first through hole 24 is arranged on the support bar 22, and the axial direction of the first through hole 24 is consistent with the length direction of the support bar 22, and the first through hole 24 is a process hole, which is convenient for subsequent installation. A second through hole 25 and two third through holes 26 are arranged on the end panel 23, and the second through hole 25 is arranged coaxially with the first through hole 24, and the two third through holes 26 are symmetrically located on both sides of the second through hole 25, and are respectively located on both sides close to the rotating frame 3. The second through hole 25 is also a process hole, which is convenient for subsequent installation.

[0076] Please continue to refer to Figure 4 As shown, two rotating frames 3 are connected to both sides of the central axis 2 in a one-to-one correspondence, and the two rotating frames 3 can rotate relative to the central axis. Fig.11 As shown, the rotating frame 3 may include two connecting plates 31, a support plate 32 is connected between the two connecting plates 31, and a rotating shaft 33 is arranged at one end of the connecting plate 31 close to the end panel 23. The rotating shaft 33 can be inserted into the third through hole 26 on the end panel 23, so that the rotating frame 3 can rotate relative to the central axis.

[0077] The adjustment mechanism 5 may include a fixed shaft 52 and a bendable connector. In this exemplary embodiment, the bendable connector may be a steel wire rope 51. Of course, in other exemplary embodiments of the present invention, the bendable connector may also be a nylon rope, a plastic rope, etc., as long as it is a bendable member without elasticity.

[0078] Reference Figure 8 , Fig. 9 and Fig.10 As shown, two fixed shafts 52 are arranged on a side of the end panel 23 away from the support plate 21 (one of the fixed shafts 52 is blocked by the fixing portion 56 and is not shown), the fixed shaft 52 is set to be cylindrical, and the fixed shaft 52 is coaxially arranged with the rotating shaft 33 of the rotating frame 3, that is, the axial direction of the fixed shaft 52 is consistent with the axial direction of the third through hole 26. An annular groove 53 is arranged on the outer cylindrical surface of the fixed shaft 52, and the annular groove 53 is coaxially arranged with the fixed shaft 52. A fourth through hole 54 is arranged on the fixed shaft 52, the fourth through hole 54 has the same diameter as the third through hole 26, and the fourth through hole 54 is coaxially arranged with the third through hole 26, and the fixed shaft 52 is sleeved on the rotating shaft 33 through the fourth through hole 54, that is, the rotating shaft 33 passes through the fourth through hole 54 on the fixed shaft 52 and the third through hole 26 on the end panel 23 in sequence. A limit plate 55 is also provided on the fixed shaft 52. The limit plate 55 is located on the side of the fixed shaft 52 close to the flexible display panel 1. The limit plate 55 is provided on the side away from the rotating frame 3 when the fixed shaft 52 is in the flattened state, that is, on the side of the fixed shaft 52 close to another fixed portion 56; and the length of the limit plate 55 just extends to the position where the steel wire rope 51 is tangent to the annular groove 53. The limit plate 55 is provided with a groove, which is connected to the annular groove 53. The limit plate 55 can prevent the steel wire rope 51 from escaping from the annular groove 53 when the adjustable frame is folded inwardly; and can prevent the limit plate 55 from blocking the steel wire rope 51 in the folded state so that the steel wire rope 51 is bent and shortened.

[0079] The adjustment mechanism 5 may further include a fixing portion 56, which is configured as a square plate, and a fifth through hole 57 is provided on the fixing portion 56, so that the fixing portion 56 forms a plate with an inner circle and an outer square. The fifth through hole 57 has the same diameter as the fourth through hole 54, and the fifth through hole 57 is arranged coaxially with the fourth through hole 54. A sixth through hole 66 is also provided on the fixing portion 56, and the sixth through hole 66 is located on the side of the fixing portion 56 close to the flexible display panel 1, and the central axis of the sixth through hole 66 is perpendicular to the central axis of the fifth through hole 57. The first end of the steel wire rope 51 is interference-fitted in the sixth through hole 66, so that the first end of the steel wire rope 51 is fixed to the fixing portion 56, and the steel wire rope 51 can be tangent to the bottom of the annular groove 53, and is not wound around the fixed shaft 52 when flattened.

[0080] In this exemplary embodiment, the structures of the two adjustment mechanisms 5 arranged at the same end of the middle shaft portion 2 are slightly different. Two fixed shafts 52 and two fixed portions 56 are arranged on one end panel 23, one of the fixed portions 56 is in contact with the end panel 23, and the fixed shaft 52 and the limit plate 55 are located on the side of the fixed portion 56 away from the end panel 23; the fixed shaft 52 and the limit plate 55 are arranged between the other fixed portion 56 and the end panel 23, so that the two steel wire ropes 51 are staggered, that is, one steel wire rope 51 is closer to the end panel 23 than the other steel wire rope 51.

[0081] It should be noted that in other exemplary embodiments of the present invention, the fixing portion 56 may not be connected to the fixed shaft 52, but may be separately arranged on the side of the fixed shaft 52 away from the rotating frame 3. Moreover, the structure of the fixing portion 56 is not limited to the above description. For example, the fixing portion 56 may also be arranged as a cylinder, the axial direction of which is consistent with the axial direction of the fixed shaft 52, and one end of the wire rope 51 is wound around the cylinder and fixed. In the case where the fixing portion 56 is separately arranged from the fixed shaft 52, the two wire ropes 51 can be arranged without misalignment, even if the two wire ropes 51 are arranged oppositely. As long as the wire rope 51 is tangent to the side of the bottom of the annular groove 53 close to the flexible display panel 1 in the flattened state, the wire rope 51 can be wound around at least a quarter of the arc in the annular groove 53 in the outward folded state. Of course, it is also possible that the wire rope 51 is partially wound in the annular groove 53 and then extends tangently from the side of the annular groove 53 close to the flexible display panel 1 to the side of the rotating frame 3.

[0082] When the adjustable frame bends outward, the steel wire rope 51 can be wound around the cylindrical surface of the fixed shaft 52 as the rotating frame 3 and the movable frame 4 rotate, thereby driving the movable frame 4 to move toward the rotating frame 3. Fig.12 and Fig.13 The schematic diagram is used to illustrate.

[0083] Reference Fig.12 As shown in the schematic diagram, the line segment OA in the figure represents the straight-line length L1 of the wire rope 51 in the flattened state, and the dotted line represents the state of the wire rope 51 in the folded state. At this time, the wire rope 51 is wound around the annular groove 53 on the fixed shaft 52 with a quarter arc, and point B represents the length of the wire rope 51 after rotation when it is not wound around the annular groove 53; the distance between point O and point C represents the straight-line length L2 of the wire rope 51 in the folded state. Since the length of the wire rope 51 does not change, the difference H1 between L2 and L1 represents the distance that the wire rope 51 drives the movable frame to move toward the side of the central axis 2 in the folded state, H1=πr / 2-r, where r is the groove bottom radius of the annular groove 53.

[0084] The above structure can complete the adjustment of the movable frame 4 from the flattened state to the folded state, driving the movable frame 4 to move toward the rotating frame 3. During this state change process, the width of the adjustable frame is reduced.

[0085] In some other exemplary embodiments of the present invention, the fixing portion 56 may be located on a side of the fixing shaft 52 away from the display panel, and the first end of the bendable connector is fixed to the fixing portion 56, so that when the adjustable frame is folded outward, the steel wire rope 51 is wound around the fixing shaft 52 for at least half of an arc; when the adjustable frame is flattened, the steel wire rope 51 is wound around the fixing shaft 52 for at least a quarter of an arc. Figure 7 and Figure 8 The structure shown in is the same as that shown in , except that the sixth through hole 66 is only arranged on the side of the fixing portion 56 away from the rotating frame 3 in the flattened state, and the central axis of the sixth through hole 66 is perpendicular to the central axis of the fifth through hole 57. As long as the steel wire rope 51 is tangent to the side of the bottom of the annular groove 53 close to the other fixed column in the inward folded state, the steel wire rope 51 can be wound around at least a quarter of the arc in the annular groove 53 in the flattened state, and at least a half of the arc in the annular groove 53 in the outward folded state. Of course, the steel wire rope 51 can also be wound around the annular groove 53, and then extend from the side of the annular groove 53 close to the other fixed column to the side of the flexible display panel 1 tangent to it.

[0086] Reference Fig.13 Another exemplary embodiment principle diagram is shown, in which the OD line segment represents the straight length L3 of the steel wire rope 51 in the folded state. Points M and N represent the length of the steel wire rope 51 after rotation when it is wound in the annular groove 53 on the fixed shaft 52; the distance between points O and E represents the straight length L4 of the steel wire rope 51 in the flattened state, at which time the steel wire rope 51 is wound in the annular groove 53 on the fixed shaft 52 with a quarter arc. Since the length of the steel wire rope 51 does not change, the difference H2 between L4 and L3 represents the distance that the steel wire rope 51 drives the movable frame to move toward the side of the middle axis 2 in the flattened state, H2 = πr / 2-r, where r is the groove bottom radius of the annular groove 53. The distance between point O and point F represents the straight length L5 of the wire rope 51 in the outward folded state. At this time, the wire rope 51 is wound around a half arc in the annular groove 53 on the fixed shaft 52. Since the length of the wire rope 51 does not change, the difference H3 between L5 and L3 represents the distance that the wire rope 51 drives the movable frame to move toward the side of the central axis 2 in the outward folded state. H3=L3-πr, where r is the bottom radius of the annular groove 53.

[0087] The above structure can adjust the movable frame 4 from the inward folding state to the flattened state, and then from the flattened state to the outward folding state, and drive the movable frame 4 to move toward the rotating frame 3. In this state change process, the width of the adjustable frame is reduced. However, when the adjustable frame changes from the outward folding state to the flattened state, and from the flattened state to the inward folding state, in order to have enough space to accommodate the flexible display panel 1, it is necessary to manually pull the movable frame 4 to increase the distance between the movable frame 4 and the rotating frame 3, so that the width of the entire adjustable frame is increased. The adjustment mechanism 5 is further described below. The adjustment mechanism 5 can automatically adjust the width of the adjustable frame.

[0088] In this example implementation, refer to Fig.14 As shown, the movable frame 4 is configured as a rectangular parallelepiped housing, one side of the housing is provided with an opening, and the end of the rotating frame 3 away from the central axis 2 is inserted into the housing through the opening. The rotating frame 3 can guide the movement of the movable frame 4. Specifically, the movable frame 4 may include a bottom plate 41, a top plate 42, and three side plates 43 connected between the bottom plate 41 and the top plate 42. The bottom plate 41 and the top plate 42 are arranged opposite to each other, and the bottom plate 41 and the top plate 42 have the same shape of a rectangle. The three side plates 43 form an opening in the movable frame.

[0089] Please continue to refer to Fig.15 As shown, the adjustment mechanism 5 can also include a slide groove 58, a slider 59 and an elastic member 60; the slide groove 58 is fixed to the rotating frame 3, and the extension direction of the slide groove 58 is consistent with the moving direction of the movable frame 4; the slider 59 is arranged in the slide groove 58, and is fixedly connected to the second end of the flexible connecting member and the movable frame 4; the elastic member 60 is arranged between the slider 59 and the slide groove 58, and is used to drive the slider 59 and the movable frame 4 to move when the flexible connecting member is relaxed.

[0090] Specifically, a positioning column 61 is provided on the inner wall of the side plate 43 of the housing of the movable frame 4. The positioning column 61 is configured as a rectangular prism. Two mounting plates 62 are fixed by screws on the two opposite side walls 582 of the positioning column 61 away from and close to the rotating frame 3. The two mounting plates 62 extend toward the inner side of the movable frame 4. Fig.15 As shown, two seventh through holes 65 are provided on the mounting plate 62, and the second end of the steel wire 51 passes through the seventh through holes 65 on the two mounting plates 62 in sequence. The two seventh through holes 65 can be provided so that the steel wire 51 can be fixed in which seventh through hole 65 as needed. Then, the second end of the steel wire 51 can be fixedly connected to the mounting plate 62 by welding, and the second end of the steel wire 51 can be fixed to the movable frame 4. Of course, it can also be fixedly connected by screws, rivets, etc. A connecting column 63 is provided at one end of the mounting plate 62 away from the positioning column 61, and the extending direction of the connecting column 63 is consistent with the extending direction of the mounting plate 62.

[0091] The connecting column 63 is connected to the slider 59. Two blind holes are provided on one side of the slider 59 near the two mounting plates 62. The two connecting columns 63 are interference-fitted in the blind holes to fix the connecting column 63 to the slider 59, that is, to fix the second end of the steel wire rope 51 to the slider 59. Thus, the steel wire rope 51, the mounting plate 62, the slider 59, the positioning column 61 and the movable frame 4 are fixed as a whole.

[0092] The slide groove 58 is disposed on the side of the rotating frame 3 away from the flexible display panel 1. Fig.16 As shown, the slide groove 58 may include a bottom wall 581 and two side walls 582, the bottom wall 581 is arranged parallel to the support plate 32 of the rotating frame 3, and the two side walls 582 are connected to the support plate 32 of the rotating frame 3. A long strip-shaped slide hole 583 is arranged on the side wall 582 of the slide groove 58 close to the positioning column 61, and the length direction of the slide hole 583 is consistent with the sliding direction of the slider 59. The connecting column 63 on the mounting plate 62 passes through the slide hole 583 and is fixedly connected to the slider 59. The slide hole 583 can limit the sliding distance of the slider 59 to prevent the slider 59 from leaving the slide groove 58.

[0093] In addition, in some other example embodiments of the present invention, the slider 59 can be directly fixed to the inner wall of the top plate 42 of the movable frame 4, and the second end of the wire rope 51 is also directly fixed to the side of the slider 59 close to the rotating frame; baffles can be set at both ends of the slide groove 58, and the two baffles can limit the sliding distance of the slider 59 to prevent the slider 59 from detaching from the slide groove 58.

[0094] Reference Fig.17 As shown, a baffle 584 is provided at one end of the slide groove 58 close to the middle axis 2, and the elastic member 60 may be a compression spring connected between the baffle 584 and the slider 59. When the adjustable frame is adjusted from the flattened state to the outward folded state, the length of the steel wire rope 51 wound on the fixed column gradually increases, and the straight-line distance of the steel wire rope 51 gradually shortens. Fig.18 As shown, the steel wire rope 51 drives the slider 59 and the movable frame 4 etc. to move toward the side close to the rotating frame 3. During this process, the compression spring is compressed to generate an elastic force extending outward; when the adjustable frame is adjusted from the outward folded state to the flattened state, the length of the steel wire rope 51 wrapped around the fixed column gradually shortens, the straight-line distance of the steel wire rope 51 gradually increases, and the steel wire rope 51 gradually relaxes. At this time, the outward elastic force of the compression spring is greater than the pulling force of the steel wire rope 51, pushing the slider 59 and the movable frame 4 etc. away from the rotating frame 3.

[0095] In addition, it can be understood that the baffle 584 can be set at the end of the slide 58 away from the middle axis 2, and the elastic member 60 can be a tension spring connected between the baffle 584 and the slider 59. When the adjustable frame is adjusted from the flattened state to the outward folded state, the length of the wire rope 51 wrapped around the fixed column gradually increases, and the linear distance of the wire rope 51 gradually shortens, driving the slider 59 and the movable frame 4 to move toward the side close to the rotating frame 3. In this process, the tension spring is stretched and stretched to produce an elastic force that contracts inward; when the adjustable frame is adjusted from the outward folded state to the flattened state, the length of the wire rope 51 wrapped around the fixed column gradually shortens, and the linear distance of the wire rope 51 gradually increases, and the wire rope 51 gradually relaxes. At this time, the inward contraction elastic force of the tension spring is greater than the pulling force of the wire rope 51, and the slider 59 and the movable frame 4 are pulled away from the rotating frame 3.

[0096] Please continue to refer to Fig.15 As shown, in this exemplary embodiment, a mounting post 64 is provided on the slider 59, and the extension direction of the mounting post 64 is consistent with the moving direction of the movable frame 4. Of course, the extension direction of the mounting post 64 is also consistent with the extension direction of the slide slot 58. The mounting post 64 is located on the side of the slider 59 close to the rotating frame 3, and a compression spring is disposed on the outer surface of the mounting post 64. Of course, when the elastic member 60 is a tension spring, the mounting post 64 is located on the side of the slider 59 away from the rotating frame 3, and a tension spring is disposed on the outer surface of the mounting post 64.

[0097] Furthermore, this exemplary embodiment also provides a foldable display device, which may include a flexible display panel 1 and any one of the above-mentioned adjustable frames; the flexible display panel 1 is arranged on a side of the adjustable frame away from the adjustment mechanism 5. The non-display surface of the flexible display panel 1 is bonded to the rotating frame. The specific structure of the adjustable frame has been described in detail above, so it will not be repeated here.

[0098] The specific type of the foldable display device is not particularly limited, and any type of display device commonly used in the field can be used, such as mobile devices such as mobile phones, wearable devices such as watches, VR devices, etc. Technical personnel in this field can make corresponding choices based on the specific purpose of the display device, which will not be repeated here.

[0099] It should be noted that, in addition to the flexible display panel 1, the foldable display device also includes other necessary components and components, such as a mobile phone as an example, such as a casing, a circuit board, a power cord, etc. Those skilled in the art can make corresponding supplements according to the specific use requirements of the foldable display device, which will not be repeated here.

[0100] Compared with the prior art, the beneficial effects of the foldable display device provided by the embodiment of the present invention are the same as the beneficial effects of the adjustable frame provided by the above embodiment, which will not be described in detail here.

[0101] The features, structures or characteristics described above may be combined in one or more embodiments in any suitable manner, and if possible, the features discussed in each embodiment are interchangeable. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring various aspects of the present invention.

[0102] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned over so that it is upside down, the component described as being "upper" will become the component "lower". Other relative terms, such as "high", "low", "top", "bottom", etc., are also used to have similar meanings. When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0103] In this specification, the terms "a", "an", "the" and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising", "including" and "having" are used to express an open-ended inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used only as labels and are not intended to limit the quantity of their objects.

[0104] It should be understood that the present invention is not limited in its application to the detailed structure and arrangement of the components proposed in this specification. The present invention can have other embodiments and can be implemented and executed in a variety of ways. The aforementioned variations and modifications fall within the scope of the present invention. It should be understood that the present invention disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or evident in the text and / or the drawings. All these different combinations constitute multiple alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for implementing the present invention and will enable those skilled in the art to utilize the present invention.

Claims

1. An adjustable frame, wherein: include: Middle axis; A rotating frame rotatably connected to the central axis; A movable frame, arranged on a side of the rotating frame away from the central axis; An adjusting mechanism, one end of which is connected to the central axis and the other end of which is connected to the movable frame, and the adjusting mechanism is used to adjust the distance between the movable frame and the rotating frame as the rotating frame and the movable frame rotate; the adjusting mechanism includes: A fixed shaft, which is cylindrical and fixed to the middle shaft portion, and the fixed shaft is coaxially arranged with the rotating shaft of the rotating frame; The bendable connecting member has a first end and a second end that are relatively arranged, wherein the first end is fixed to the central axis portion, and the second end is connected to the movable frame. The bendable connecting member can be wound around the cylindrical surface of the fixed axis as the rotating frame and the movable frame rotate when the adjustable frame bends outward, thereby driving the movable frame to move toward the rotating frame.

2. The adjustable frame according to claim 1, wherein: An annular groove is arranged on the fixed shaft, the annular groove is arranged coaxially with the fixed shaft, and the bendable connecting piece can be wound in the annular groove.

3. The adjustable frame according to claim 1, wherein: The regulating mechanism also includes: The fixing portion is fixed on the central axis portion and is located on the side of the fixing axis away from the rotating frame when in a flattened state. The first end of the bendable connecting member is fixed to the fixing portion so that when the adjustable frame is folded outward, the bendable connecting member is wrapped around at least a quarter of an arc on the fixing axis.

4. The adjustable frame according to claim 3, wherein: The regulating mechanism also includes: The limiting plate is arranged on a side of the fixed axis close to the flexible display panel and is located on a side of the fixed axis close to the fixed portion, and the limiting plate extends to a position where the bendable connecting member is tangent to the fixed axis.

5. The adjustable frame according to claim 1, wherein: The regulating mechanism also includes: The fixing portion is fixed on the central axis portion and is located on a side of the fixed axis away from the flexible display panel. The first end of the flexible connector is fixed to the fixing portion, so that when the adjustable frame is flattened, the flexible connector is wrapped around at least a quarter of an arc on the fixed axis, and when the adjustable frame is folded outward, the flexible connector is wrapped around at least a half of an arc on the fixed axis.

6. The adjustable frame according to claim 1, wherein: The regulating mechanism also includes: A slide groove is fixed to the rotating frame, and the extending direction of the slide groove is consistent with the moving direction of the movable frame; A slider, disposed in the slide groove and fixedly connected to the second end of the bendable connector and the movable frame; The elastic member is arranged between the slider and the slide groove, and is used for driving the slider and the movable frame to move when the bendable connecting member is relaxed.

7. The adjustable frame according to claim 6, wherein: A baffle is arranged at one end of the slide slot close to the middle axis portion, and the elastic member is a compression spring connected between the baffle and the slide block.

8. The adjustable frame according to claim 6, wherein: A baffle is arranged at one end of the slide slot away from the middle axis portion, and the elastic member is a tension spring connected between the baffle and the slide block.

9. The adjustable frame according to claim 6, wherein: The sliding block is provided with a mounting post, the extension direction of the mounting post is consistent with the moving direction of the movable frame, and the elastic member is disposed outside the mounting post.

10. The adjustable frame according to claim 6, wherein: The movable frame is configured as a rectangular parallelepiped shell, a side of the shell close to the rotating frame is provided with an opening, and an end of the rotating frame away from the central axis is inserted into the shell through the opening.

11. The adjustable frame according to claim 10, wherein: The regulating mechanism also includes: A positioning column, fixed to the inner wall of the shell; A mounting plate fixed to the positioning column, the second end of the bendable connector being fixed to the mounting plate; A long strip-shaped sliding hole is arranged on the side wall of the sliding groove close to the positioning column. The length direction of the sliding hole is consistent with the sliding direction of the slider. The mounting plate passes through the sliding hole and is fixedly connected to the slider.

12. The adjustable frame according to claim 1, wherein: The bendable connecting piece is a steel wire rope or a nylon rope.

13. The adjustable frame according to claim 1, wherein: The adjusting mechanisms are provided in two, and the two adjusting mechanisms are correspondingly arranged at the opposite ends of the middle shaft.

14. The adjustable frame according to claim 1, wherein: The rotating frame is provided with two, and the two rotating frames are rotatably connected to the opposite sides of the central axis; The movable frame is provided with two, and one movable frame is provided on a side of each rotating frame away from the central axis; The adjusting mechanisms are arranged in four, two of which form a group, and a group of the adjusting mechanisms is connected to one of the movable frames.

15. A foldable display device, wherein: include: The adjustable frame according to any one of claims 1 to 14; The flexible display panel is arranged on a side of the adjustable frame away from the adjusting mechanism.

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