CN114038335A

CN114038335A - Foldable supporting device and display device

Info

Publication number: CN114038335A
Application number: CN202111470805.9A
Authority: CN
Inventors: 刘德龙
Original assignee: Hefei Visionox Technology Co Ltd
Current assignee: Hefei Visionox Technology Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-02-11
Anticipated expiration: 2041-12-03
Also published as: CN114038335B

Abstract

The invention provides a foldable supporting device and a display device, wherein the foldable supporting device is applied to a flexible screen and comprises at least one bending supporting part and at least two plane supporting parts, and the bending supporting parts are connected between the two adjacent plane supporting parts to support the flexible screen. The bending supporting parts comprise first bending supporting parts and second bending supporting parts, and the first bending supporting parts and the second bending supporting parts are respectively in one-to-one corresponding rotary connection with the two adjacent plane supporting parts. The driving assembly is arranged in the foldable supporting device and drives the bending supporting portion to move, the bending supporting portion forms a bending surface, and the bending direction of the bending surface is opposite to the bending direction of the crease of the flexible screen, so that the crease is corrected. Therefore, the foldable supporting device and the display device provided by the invention can effectively eliminate the crease on the flexible screen and ensure the display effect of the display device.

Description

Foldable supporting device and display device

Technical Field

The invention relates to the technical field of display, in particular to a foldable supporting device and a display device.

Background

The flexible display screen has special product forms such as folding, large-angle bending, curling and the like, so that the flexible display screen is increasingly applied. For example, the foldable display screen can make the display area larger in the state that the display screen is flattened; under the folding state of the display screen, the whole device has small volume and is convenient to carry, thereby obtaining wide attention.

In the related art, the display device may include a support member and a flexible screen, the flexible screen is fixed on the support member, and the support member has mechanical strength and can support the flexible screen to prevent the flexible screen from sinking when being pressed and affecting the touch experience of a user.

However, after the flexible screen of the display device is repeatedly bent, a crease is easily formed after the flexible screen is flattened, and the display effect of the display device is affected.

Disclosure of Invention

In view of the above problems, embodiments of the present invention provide a foldable supporting device and a display device, which can effectively eliminate a crease on a flexible screen and ensure a display effect of the display device.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

the first aspect of the embodiment of the invention provides a foldable supporting device, which is applied to a flexible screen, and comprises a first surface and a second surface which are oppositely arranged, wherein the first surface is used for being attached to the flexible screen; the bending support parts are connected between two adjacent plane support parts and comprise first bending support parts and second bending support parts, and the first bending support parts and the second bending support parts are respectively in one-to-one corresponding rotating connection with the two adjacent plane support parts;

the driving assembly comprises a first driving piece and a second driving piece, the first driving piece is connected with the first bending supporting piece, and the second driving piece is connected with the second bending supporting piece;

the first driving piece is used for driving the end portion, close to the second bending support piece, of the first bending support piece to move towards the direction close to the first surface, the second driving piece is used for driving the end portion, close to the first bending support piece, of the second bending support piece to move towards the direction close to the first surface, so that the face, close to one side of the first surface, of the first bending support piece and the face, close to one side of the first surface, of the second bending support piece jointly form a bending face, the bending face bends towards the direction of the first surface, the bending direction of the bending face is opposite to the bending direction of the crease of the flexible screen, the bending face is used for being abutted to the flexible screen in the bending area, and a flattening adjusting state of the foldable supporting device is formed.

The foldable support device provided by the embodiment is applied to a flexible screen and comprises at least one bending support part and at least two plane support parts, wherein the bending support part is connected between the two adjacent plane support parts so as to support the flexible screen. The bending supporting parts comprise first bending supporting parts and second bending supporting parts, and the first bending supporting parts and the second bending supporting parts are respectively in one-to-one corresponding rotary connection with the two adjacent plane supporting parts. Through set up drive assembly in collapsible strutting arrangement, the drive assembly drive is buckled the supporting part motion, and the bending face of buckling the supporting part supports the district of buckling of flexible screen, and the direction of buckling of the face of buckling is opposite with the direction of buckling of the crease of flexible screen to rectify the crease, alleviate the crease on the flexible screen, in order to promote this flexible screen, and have the display device's of flexible screen display effect and user visual experience.

In one possible implementation manner, each of the first driving piece and the second driving piece comprises a driving part and a driven part, the driven part is rotatably connected with the mounting part, and the driving part and the driven part are mutually linked;

one end of the first bending support piece, which is close to the second bending support piece, is a movable end of the first bending support piece, and one end of the second bending support piece, which is close to the first bending support piece, is a movable end of the second bending support piece;

the movable end of the first bending support piece is movably connected with the driven part of the first driving piece, and the driving part of the first driving piece is used for driving the driven part of the first driving piece to move towards the direction close to the first surface so as to enable the movable end of the first bending support piece to move towards the direction close to the first surface;

the movable end of the second bending supporting piece is movably connected with the driven part of the second driving piece, and the driving part of the second driving piece is used for driving the driven part of the second driving piece to move towards the direction close to the first surface, so that the movable end of the second bending supporting piece moves towards the direction close to the first surface.

Like this, the expansion end of the first support piece of buckling and the expansion end of the second support piece of buckling all move towards the direction that is close to the first surface to form the face of buckling, the direction of buckling of the face of buckling is opposite with the direction of buckling of the crease of flexible screen, thereby rectifies the crease, alleviates the crease on the flexible screen, in order to promote this flexible screen, and have the display effect and the user visual experience of the display device of flexible screen.

In a possible implementation manner, one side of the driving part, which is close to the first surface, is provided with a driving surface, and one end, which is far away from the first surface, of the driven part is abutted with the driving surface;

preferably, the driving surface is provided with a limiting groove, the limiting groove extends along the direction from the first bending support piece to the second bending support piece, and one end of the driven part, which is far away from the first surface, is abutted against the inner wall surface of the limiting groove.

In this way, the driving part can drive the driven part to move through the driving surface, and the driving surface forms a support for the driven part.

In one possible implementation, the driving surface is a first inclined surface; the surface of the driven part close to one side of the driving part is a second inclined surface matched with the driving surface;

the end of the driving surface of the first driving piece, which is close to the second bending supporting piece, is closer to the first surface than the end of the driving surface of the first driving piece, which is far away from the second bending supporting piece;

the end of the driving surface of the second driving piece, which is close to the first bending supporting piece, is closer to the first surface than the end of the driving surface of the second driving piece, which is far away from the first bending supporting piece;

the driving part of the first driving piece and the driving part of the second driving piece move back and forth in the directions of approaching to and departing from each other;

the driving part of the first driving part and the driving part of the second driving part move towards the directions away from each other to form a flattening adjustment state of the foldable supporting device;

the driving part of the first driving piece and the driving part of the second driving piece move towards the direction close to each other to form a flattening state of the foldable supporting device;

the two plane supporting parts move towards the direction close to the first surface so as to fold the two plane supporting parts to form a folded state of the foldable supporting device;

preferably, the driving surface is a plane which is obliquely arranged;

or the driving surface is an obliquely arranged cambered surface and is bent towards the direction away from the first surface.

In this way, switching of the display device between the folded state, the flattened state, and the flattened adjustment state can be achieved.

In a possible implementation manner, the driven part of the first driving piece and the movable end of the first bending supporting piece, and the driven part of the second driving piece and the movable end of the second bending supporting piece are connected through sliding assemblies;

the sliding assembly comprises a sliding groove and a sliding block, and the sliding block is connected in the sliding groove in a sliding manner;

the sliding groove is arranged on one of the driven part of the first driving piece and the movable end of the first bending supporting piece, and is arranged on one of the driven part of the second driving piece and the movable end of the second bending supporting piece;

the slide block is arranged on the other one of the driven part of the first driving piece and the movable end of the first bending supporting piece and is arranged on the other one of the driven part of the second driving piece and the movable end of the second bending supporting piece;

preferably, the sliding groove is an arc-shaped groove, and the sliding groove is bent towards the direction far away from the first surface.

Like this, realize display device's expansion and folding operation through sliding assembly, its structure is comparatively simple, convenient operation.

In a possible implementation manner, at least part of the surface of the first bending support part, which is far away from the first surface, is an inclined surface;

and/or at least part of the surface of one side, far away from the first surface, of the second bending supporting piece is an inclined surface.

Therefore, the interference of the first bending support piece and the second bending support piece to other structures in the display device in the folding process can be avoided, the strength of the first bending support piece and the strength of the second bending support piece are high, and the flexible screen is supported well.

In one possible implementation manner, when the foldable supporting device is in the flattening adjustment state, an included angle between a surface of the first bending supporting piece close to one side of the first surface and the horizontal plane and an included angle between a surface of the second bending supporting piece close to one side of the first surface and the horizontal plane are not more than 5 degrees;

preferably, an included angle between a surface of the first bending support piece close to the first surface and the horizontal plane is equal to an included angle between a surface of the second bending support piece close to the first surface and the horizontal plane.

Thus, when the two included angles are not larger than 5 degrees, the first bending support piece and the second bending support piece have small influence on the flexible screen.

In one possible implementation manner, the driven part of the first driving piece is connected with the driven part of the second driving piece through the first rotating piece;

the at least two plane supporting parts are a first plane supporting part and a second plane supporting part which are connected through a connecting component;

the connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on one side, close to the second plane supporting piece, of the first plane supporting piece, and the second connecting piece is arranged on one side, close to the first plane supporting piece, of the second plane supporting piece;

the first connecting piece and the second connecting piece are connected through a second rotating piece;

preferably, the first rotating member and the second rotating member have the same structure;

preferably, in the second extending direction along the foldable supporting device, the connecting point of the first connecting piece and the second connecting piece, and the connecting point of the driven part of the first driving piece and the connecting point of the driven part of the second driving piece are positioned on the same straight line; the second extending direction and the first extending direction are perpendicular to each other and are parallel to the first surface.

Like this, through setting up first rotation piece and second rotation piece for the planar supporting part that flexible screen received and the effort of the supporting part of buckling are comparatively balanced, guarantee the stable supporting effect to flexible screen.

In one possible implementation manner, the first surface is provided with a flexible screen placing area, the flexible screen placing area is used for corresponding to the flexible screen, and at least part of the plane supporting part and at least part of the bending supporting part are positioned in the flexible screen placing area;

the flexible screen placing area is spaced from the driving assembly.

In this way, interference of the drive assembly with the flexible screen during movement can be avoided.

A second aspect of embodiments of the present invention provides a display device, including a housing, a flexible screen, and the foldable support device in the first aspect, where the flexible screen and the foldable support device are both located in the housing, and the foldable support device is located on a backlight side of the flexible screen.

The display device provided by the embodiment comprises a foldable supporting device, wherein the foldable supporting device is applied to a flexible screen and comprises at least one bending supporting part and at least two plane supporting parts, and the bending supporting parts are connected between every two adjacent plane supporting parts so as to support the flexible screen. The bending supporting parts comprise first bending supporting parts and second bending supporting parts, and the first bending supporting parts and the second bending supporting parts are respectively in one-to-one corresponding rotary connection with the two adjacent plane supporting parts. Through set up drive assembly in collapsible strutting arrangement, the drive assembly drive is buckled the supporting part motion, and the bending face of buckling the supporting part supports the district of buckling of flexible screen, and the direction of buckling of the face of buckling is opposite with the direction of buckling of the crease of flexible screen to rectify the crease, alleviate the crease on the flexible screen, in order to promote this flexible screen, and have the display device's of flexible screen display effect and user visual experience.

The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a top view of a collapsible support device according to an embodiment of the present invention in a flattened state;

FIG. 2 is a front view of a foldable support device provided in accordance with an embodiment of the present invention in a flattened state;

FIG. 3 is a front view of a foldable support device provided in accordance with an embodiment of the present invention in a folded state;

FIG. 4 is a front view of a flexible screen provided by an embodiment of the present invention in a folded state;

FIG. 5 is a front view of a flexible screen provided by an embodiment of the present invention in a flattened state;

FIG. 6 is a schematic structural view of a buckling support according to an embodiment of the present invention in a flattened state;

FIG. 7 is a front view of a foldable support device provided in accordance with an embodiment of the present invention in a flattened, adjusted position;

FIG. 8 is a schematic structural diagram of a bending plane according to an embodiment of the present invention;

FIG. 9 is an enlarged view of section E of FIG. 7;

fig. 10 is a top view of the first driving part according to the embodiment of the present invention.

Description of reference numerals:

100-a collapsible support device; 100 a-a first surface;

100 b-a second surface; 11-a first planar support;

12-a second planar support; 21-a first bending support;

211-a first active end; 212-a first connection end;

22-a second bending support; 221-a second active end;

222-a second connection end; 23-a bending surface;

21 a-a first rotational connection; 22 a-a second rotational connection;

30-a first drive member; 301-a limiting groove;

31-a first drive section; 32-a first driven part;

32 a-a third rotational connection; 33-a first driving surface;

40-a second drive member; 41-a second drive section;

42-a second driven portion; 42 a-a fourth rotational connection;

51-a first slide assembly; 511-a first runner;

512-a first slider; 60-a first rotating member;

71-a first connector; 72-a second connector;

73-a second rotating member; 80-a flexible screen;

81-a first planar zone; 82-a second planar zone;

83-bending zone; 841-middle fold;

842-transitional creases; 90-shell.

Detailed Description

In the related art, in order to satisfy the foldable application, each functional film layer inside the flexible screen can be made of a flexible material, so as to reduce the rigidity of the flexible screen and improve the flexibility of the flexible screen, thereby facilitating the folding. The backlight side of the flexible screen can be provided with a supporting piece, and the supporting piece has mechanical strength and can support the flexible screen. In addition, the support piece can drive the flexible screen to rotate under the action of external force, so that the folding and flattening functions of the flexible screen are realized.

However, when the flexible screen is in a folded state, the bending part of the flexible screen is deformed under the stress action, and the deformation recovery capability of each functional film layer in the flexible screen is limited, so that when the flexible screen is in a flattened state, the bending part of the flexible screen is folded to form a crease, the display effect of the display device is influenced, and the visual experience of a user is reduced.

In view of the above technical problems, an embodiment of the present invention provides a foldable supporting device and a display device, where the foldable supporting device is applied to a flexible screen, and the foldable supporting device includes at least one bending supporting portion and at least two planar supporting portions, and the bending supporting portion is connected between two adjacent planar supporting portions to support the flexible screen. The bending supporting parts comprise first bending supporting parts and second bending supporting parts, and the first bending supporting parts and the second bending supporting parts are respectively in one-to-one corresponding rotary connection with the two adjacent plane supporting parts. Through set up drive assembly in collapsible strutting arrangement, the drive assembly drive is buckled the supporting part and is moved, and the bending face of buckling the supporting part supports the district of buckling of flexible screen, and the direction of buckling of the face of buckling is opposite with the direction of buckling of the crease of flexible screen to rectify the crease, alleviate the crease on the flexible screen, in order to promote this flexible screen, and have the display effect and the user visual experience of the display device of flexible screen.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides a display device which can be a mobile or fixed terminal with a foldable support device 100, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a super personal computer, a navigator and the like.

As shown in fig. 1 and 2, the display device may include a housing 90, a foldable support device 100, and a flexible screen 80, the flexible screen 80 being fixed on the foldable support device 100, the foldable support device 100 being located on a backlight side of the flexible screen 80. The foldable support device 100 can bring the flexible screen 80 to fold and form a support for the flexible screen 80. Both the flexible screen 80 and the foldable support 100 are located in the housing 90.

The flexible screen 80 comprises a bending zone 83 and two planar zones, a first planar zone 81 and a second planar zone 82, respectively, the first planar zone 81 and the second planar zone 82 being connected by the bending zone 83. Wherein the first planar area 81 and the second planar area 82 of the flexible screen 80 may be planar and the bending area 83 of the flexible screen 80 may be bent.

As shown in fig. 2, 3 and 4, the positional states of the flexible screen 80 may include a flattened state and a folded state. The flat and folded states of the flexible screen 80 are also flat and folded states of the display device and the foldable support device 100.

As shown in fig. 2, the flattened state refers to a state in which respective portions of flexible screen 80 are substantially in the same plane. At this time, the first planar region 81, the second planar region 82 and the bending region 83 are substantially on the same plane, and an included angle between the first planar region 81 and the second planar region 82 is substantially 180 degrees. In the flattened state, the display area of the flexible screen 80 is larger to ensure a better user experience.

As shown in fig. 3 and 4, the folded state means that the bending region 83 of the flexible screen 80 is bent, and both ends of the bending region 83 connected to the first planar region 81 and the second planar region 82 are folded and overlapped with each other in the thickness direction of the flexible screen 80. At this time, the first planar region 81 and the second planar region 82 overlap each other in the thickness direction of the flexible screen 80, and the angle between the first planar region 81 and the second planar region 82 is substantially 0 degree. Under folding state, flexible screen 80 to and the display device who has this flexible screen 80's volume is less, makes things convenient for storage and carrying of display device.

It is understood that the flexible screen 80 may be in a folded state, a flattened state, and any state therebetween when the user is using the display device, and the embodiment is not limited thereto.

After the foldable support device 100 is connected to the flexible screen 80, a user applies a force to the foldable support device 100 to enable the foldable support device 100 to drive the flexible screen 80 to switch between the flat state and the folded state.

As shown in fig. 2, foldable support device 100 includes a first surface 100a and a second surface 100b disposed opposite to each other, and first surface 100a is used to engage flexible screen 80 to support flexible screen 80. The second surface 100b is the other surface facing away from the first surface 100 a.

As shown in fig. 3, the display device may be an in-folding display device, that is, when the flexible screen 80 is in a folded state, the folded flexible screen 80 is located inside the foldable support device 100, and the foldable support device 100 may protect the flexible screen 80. In this case, the first planar region 81 and the second planar region 82 are disposed opposite to each other.

When the flexible screen 80 is in a folded state, the bending region 83 of the flexible screen 80 is bent to be deformed, as shown in fig. 4. The deformed portion of the flexible screen 80 is concentrated in a middle area C of the bending area 83 (portion in a dotted line frame C in fig. 4) and a transition area D between the bending area 83 and the flat area (portion in a dotted line frame D in fig. 4).

The flexible screen 80 is repeatedly folded and flattened in use, and the deformation recovery capability of each functional film layer in the flexible screen 80 is limited, so that the flexible screen 80 is in a flattened state, the deformation on the flexible screen 80 cannot be recovered, creases are generated, the display effect of the display device is influenced, and the visual experience of a user is reduced.

As shown in fig. 4 and 5, the folds generated by the flexible screen 80 include a middle fold 841 located in the middle area C and a transition fold 842 located in the transition area D, and the folding direction of each fold is identical to the folding direction of the flexible screen 80 in the folded state. The middle fold 841 is bent towards the foldable support device 100 and the transition fold 842 is bent away from the foldable support device 100.

When the flexible screen 80 is folded, the bending angle and the bending range of the flexible screen in the middle area C are larger than those in the transition area D, and therefore, the middle crease 841 has a larger influence on the display effect of the display device than that of the transition crease 842. The embodiment of the present application mainly corrects for the intermediate crease 841 and also has a certain correction effect on the transitional crease 842.

It should be noted that the embodiments of the present application are mainly described for a flexible screen with one bending area and two planar areas. In some examples, the flexible screen may include more planar regions and inflection regions, with adjacent planar regions connected by one inflection region. The foldable support device 100 of the present embodiment can be applied to correct the intermediate crease 841 caused by the inner folding as in the present embodiment, as long as the intermediate crease 841 is present in the flexible screen.

The positional state of the foldable support device 100 may also include a flat-out adjustment state. As shown in fig. 6 and 7, the flattening adjustment state is that, on the basis of the flattening state of the foldable support device 100, the foldable support device 100 drives the bending region 83 of the flexible screen 80 to move in a direction away from the foldable support device 100, so that the bending region 83 of the flexible screen 80 bends in a direction away from the foldable support device 100, which is opposite to the bending direction of the middle fold 841, thereby correcting the middle fold 841, improving the flatness of the flexible screen 80, and improving the display effect of the display device and the visual experience of the user.

The foldable support device 100 provided in the present embodiment will be described in detail with reference to the accompanying drawings.

It should be noted that, a first extending direction of the foldable supporting device 100 is an X direction in fig. 1, and a second extending direction of the foldable supporting device 100 is a Y direction in fig. 1; the first extending direction X and the second extending direction Y may be perpendicular to each other and are parallel to the first surface 100 a.

The display device may include a mounting portion, which may be a mounting structure, such as a mounting plate, a mounting frame, a mounting groove, or the like, and the embodiment does not limit the specific type of the mounting structure. Some of the components of the foldable support device 100 may be assembled to the mounting structure. The mounting structure may be assembled with the flexible screen 80 or the housing 90 when the foldable support device 100 is assembled. Furthermore, the mounting portion may also be at least part of the flexible screen 80 or the housing 90, such that part of the components of the foldable support device 100 may be mounted directly on the flexible screen 80 or the housing 90. The embodiment of the application does not limit the specific setting mode of the installation part, and a user can select the installation part according to the actual situation.

The present embodiment will be described by taking the mounting portion as the case 90.

The foldable support device 100 includes two planar support portions and a bending support portion, and the two planar support portions correspond to the two planar areas one to one. When the display device is in a flat state, the two plane support portions are arranged at intervals along the first extending direction X of the foldable support device 100, and the plane support portions are used for supporting the plane area and driving the plane area to rotate so as to realize folding. The bending support is used to support the bending zone 83.

It can be understood that the planar support portions and the planar regions are disposed in a one-to-one correspondence, and the bending support portions and the bending regions 83 are disposed in a one-to-one correspondence, and if the number of the planar regions and the bending regions 83 is larger, the number of the planar support portions and the bending support portions is correspondingly increased.

Wherein the plane support part may be mounted on the housing 90 to fix the plane support part. Thus, the user operates the housing 90 to rotate the plane support.

The bending supporting part is connected between the two plane supporting parts, namely the bending supporting part is positioned between the two plane supporting parts, and the bending supporting parts are respectively connected with the plane supporting parts. Specifically, as shown in fig. 2, the bending support portion includes a first bending support 21 and a second bending support 22, and the two plane support portions include a first plane support 11 and a second plane support 12. When the display device is in a flattened state, the first bending support 21 and the second bending support 22 are arranged along the first extending direction X, the first bending support 21 is rotatably connected with the first plane support 11, and the second bending support 22 is rotatably connected with the second plane support 12.

Thus, as shown in fig. 3 and 4, when the display device is in a folded state, the included angle between the first bending support member 21 and the first plane support member 11 and the included angle between the second bending support member 22 and the second plane support member 12 may be equal to the bending angle of the flexible screen 80 in the transition region D, so as to reduce the stress generated to the flexible screen 80 in the transition region D.

In this embodiment, as shown in fig. 2, fig. 7 and fig. 8, the foldable supporting device 100 further includes a driving component, the driving component is configured to drive the bending support portion to move towards a direction away from the foldable supporting device 100, and the bending support portion drives the bending area 83 of the flexible screen 80 to move towards a direction away from the foldable supporting device 100, so as to correct the crease and improve the display effect of the display device.

The driving assembly at least includes a first driving member 30 and a second driving member 40, the first driving member 30 is connected to the first bending support member 21, and the second driving member 40 is connected to the second bending support member 22.

Thus, the first driving element 30 drives the end portion of the first bending support 21 close to the second bending support 22 to move towards the direction close to the first surface 100a, the second driving element 40 drives the end portion of the second bending support 22 close to the first bending support 21 to move towards the direction close to the first surface 100a, so that the surface of the first bending support 21 close to the first surface 100a and the surface of the second bending support 22 close to the first surface 100a form a bending surface 23 (in fig. 8), and the bending surface 23 is used for abutting against the flexible screen 80 located in the bending area 83, so that the flexible screen 80 in the bending area 83 is in the same bending state as the bending surface 23. At this time, the flattening adjustment state of the foldable supporting device 100 is formed, and the bending surface 23 is bent toward the first surface 100a, that is, the bending surface 23 is bent toward the flexible screen 80, so that the bending region 83 of the flexible screen 80 is bent away from the foldable supporting device 100, and the bending direction is opposite to the bending direction of the middle fold 841, so as to correct the middle fold 841, thereby improving the display effect of the display device.

As shown in fig. 8, the bending surface 23 is formed by the surfaces of the first bending support 21 and the second bending support 22 facing the flexible screen 80. The face of the first bending support 21 facing the flexible screen 80 and the face of the second bending support 22 facing the flexible screen 80 may be connected together to form the complete bending face 23, or there may be a space between the face of the first bending support 21 facing the flexible screen 80 and the face of the second bending support 22 facing the flexible screen 80 to form the broken bending face 23.

It should be noted that the number of the first driving members 30 may be at least one. When the number of the first driving members 30 is 1, the first driving members 30 may be located at one end of the first bending supporting member 21 along the second extending direction Y. When the number of the first driving members 30 is 2 (in fig. 1), the first driving members 30 may be respectively located at two ends of the first bending supporting member 21 along the second extending direction Y. Thus, the first driving member 30 is located at the end of the first bending support 21, so that the layout influence of the first driving member 30 on other structures can be reduced.

The number of the second driving members 40 may be at least one, and the arrangement manner thereof may be the same as that of the first driving members 30, and the principle is similar to that of the first driving members 30, and thus, the description thereof is omitted.

The first and

second drivers

30, 40 may be identical in construction, or the first and

second drivers

30, 40 may be different in construction. In the embodiment that the first driving element 30 and the second driving element 40 have the same structure, the first driving element 30 and the second driving element 40 each include a driving portion and a driven portion, the driven portion is rotatably connected with a mounting portion, and the mounting portion has a positioning and supporting function on the driven portion.

Wherein, drive division and driven part inter-linkage, drive division drive driven part motion to make driven part drive the motion of bending support portion. As shown in fig. 3, the driving portion of the first driver 30 is a first driving portion 31, the driven portion of the first driver 30 is a first driven portion 32, the driving portion of the second driver 40 is a second driving portion 41, and the driven portion of the second driver 40 is a second driven portion 42.

As shown in fig. 8 and 9, one end of the first bending support 21 close to the second bending support 22 is a first movable end 211 of the first bending support 21; the other end of the first bending support 21 away from the second bending support 22 is a first connection end 212 of the first bending support 21, and the first connection end 212 is the end rotatably connected to the first plane support 11. When the first bending support 21 rotates around the first connection end 212, the first movable end 211 can reciprocate along the thickness direction of the display device to drive the flexible screen 80 to move.

The first movable end 211 is movably connected to the first driven portion 32, and the first driving portion 31 is configured to drive the first driven portion 32 to move toward a direction close to the first surface 100a, so that the first movable end 211 moves toward the direction close to the first surface 100 a.

One end of the second bending supporting member 22 close to the first bending supporting member 21 is a second movable end 221 of the second bending supporting member 22, the other end of the second bending supporting member 22 far from the first bending supporting member 21 is a second connection end 222 of the second bending supporting member 22, and the second connection end 222 is the end rotatably connected with the second plane supporting member 12. When the second bending supporting member 22 rotates around the second connecting end 222, the second movable end 221 can reciprocate along the thickness direction of the display device to drive the flexible screen 80 to move.

The second movable end 221 is movably connected to the second driven portion 42, and the second driving portion 41 is configured to drive the second driven portion 42 to move toward the direction close to the first surface 100a, so that the second movable end 221 moves toward the direction close to the first surface 100 a.

As shown in fig. 6 and 7, when the foldable support device 100 is in the flat-out adjustment state, the first movable end 211 and the second movable end 221 both move in a direction approaching the first surface 100 a. The first movable end 211 and the second movable end 221 drive the flexible screen 80 of the bending area 83 to move away from the foldable supporting device 100, so as to correct the middle fold 841, and improve the display effect of the display device.

It can be understood that when the first movable end 211 and the second movable end 221 both move toward the direction close to the first surface 100a, the first connection end 212 and the second connection end 222 will move toward the direction close to the second surface 100b, so as to correct the transition crease 842, thereby further improving the display effect of the display device.

As shown in fig. 6, an angle between a surface of the first bending support 21 close to the first surface 100a and a horizontal plane is θ, and the angle of θ may be less than or equal to 5 degrees. When the angle θ is greater than 5 degrees, the force applied to the flexible screen 80 by the first bending support 21 is too large, which may cause the connection portion between the flexible screen 80 and the foldable support device 100 to be disconnected. Wherein, the plane parallel to the plane on which the flexible screen 80 is in the flattened state is a horizontal plane. The included angle θ may be equal to or less than 4 degrees. For example, the included angle θ may be 1 degree, 2 degrees, 3 degrees, 4 degrees, or 5 degrees, which is not limited in the embodiments of the present application.

The included angle between the plane of the second bending support 22 close to the first surface 100a and the horizontal plane may also be less than or equal to 5 degrees. The principle is similar to the above-mentioned angle θ, and is not described again.

In some examples, the angle between the horizontal plane and the surface of the first bending support 21 close to the first surface 100a is equal to the angle between the horizontal plane and the surface of the second bending support 22 close to the first surface 100 a. In this way, the flexible screen 80 is more uniformly acted by the first bending support 21 and the second bending support 22.

In some embodiments, in the same driving member, the driving portion has a driving surface on a side thereof close to the first surface 100a, and an end of the driven portion away from the first surface 100a abuts against the driving surface. In this way, the driving part can drive the driven part to move through the driving surface, and the driving surface forms a support for the driven part.

In some examples, the driving surface is provided with a limit groove 301, as shown in fig. 10, the limit groove 301 may be provided on the driving surface of the first driving part 31, or the limit groove 301 may be provided on the driving surface of the second driving part 41. Thus, one end of the driven portion away from the first surface 100a abuts against an inner wall surface of the stopper groove 301, and the stopper groove 301 can restrict the movement of the driven portion in the second extending direction Y. The limiting groove 301 extends along the direction from the first bending support 21 to the second bending support 22, so that the driven part can reciprocate along the first extending direction X through the limiting groove 301.

As shown in fig. 8 and 9, taking the first driving element 30 as an example, the driving surface of the first driving part 31 is a first driving surface 33, the first driving surface 33 is an inclined surface, the surface of the first driven part 32 on the side close to the first driving part 31 is an inclined surface adapted to the first driving surface 33, and the end of the first driving surface 33 close to the second bending supporter 22 is closer to the first surface 100a than the end of the first driving surface 33 far from the second bending supporter 22.

Thus, when the flexible screen 80 needs to be corrected for the crease, the first driving portion 31 moves away from the second driving portion 41, the first driven portion 32 receives the acting force of the first driving portion 31 towards the first surface 100a, so that the first driven portion 32 moves towards the direction of the first surface 100a, and the first driven portion 32 drives the first bending support 21 to move, so that the bending area 83 of the flexible screen 80 moves towards the direction away from the foldable support device 100, and the middle crease 841 is corrected.

The end of the first driven part 32 far away from the second driven part 42 is rotatably connected with the mounting part, so that the end of the first driven part 32 close to the second driven part 42 reciprocates along the thickness direction of the display device under the action of the first driving part 31, thereby driving the first movable end 211 of the first bending support 21 to move, so as to drive the flexible screen 80 to move.

An end of the driving surface of the second driving member 40 close to the first bending support 21 is closer to the first surface 100a than an end of the driving surface of the second driving member 40 far from the first bending support 21. The principle is similar to that of the first driving member 30 and will not be described in detail. In this way, the first driving part 31 and the second driving part 41 move in the direction away from each other, and the flattening adjustment state of the foldable support device 100 is formed, so that the crease of the flexible screen 80 is corrected.

After the correction of the crease of the flexible screen 80 is finished, the first driving portion 31 moves towards the second driving portion 41, and the first bending supporting member 21 is subjected to the downward pressing force of the flexible screen 80, so that the first movable end 211 of the first bending supporting member 21 moves towards the second surface 100b, and drives the end of the first driven portion 32 close to the second driven portion 42 to move towards the second surface 100b, so that part of the flexible screen 80 returns to the flat state.

The principle of the second driving portion 41 is similar to that of the first driving portion 31, and is not described in detail. In this way, the first driving part 31 and the second driving part 41 move in the direction to approach each other, and the unfolded state of the foldable supporting device 100 is formed.

When it is desired to fold the flexible screen 80, both of the planar support portions are moved in a direction close to the first surface 100a, so that the two planar support portions are folded to form a folded state of the foldable support device 100.

In some examples, the driving surface is a plane that is obliquely disposed; alternatively, the driving surface is a curved surface that is obliquely arranged, and the driving surface is curved in a direction away from the first surface 100 a. Thus, the driving surface can be selected according to requirements.

In some embodiments, the first driven portion 32 of the first driving member 30 is connected to the first movable end 211 of the first bending support 21 by a sliding assembly. The first driven part 32 and the first bending support 21 slide with each other through a sliding assembly.

As shown in fig. 9, the sliding assembly between the first driven portion 32 and the first bending support 21 is a first sliding assembly 51. Specifically, the first sliding assembly 51 includes a first sliding slot 511 and a first sliding block 512, and the first sliding block 512 is slidably connected in the first sliding slot 511. In this way, the first slider 512 can slide along the extending direction of the length of the first sliding slot 511.

In some examples, as shown in fig. 9, the first sliding slot 511 is disposed on the first driven portion 32, and the first slider 512 is disposed on the first movable end 211. Thus, when the first sliding block 512 slides along the extending direction of the length of the first sliding slot 511, the first movable end 211 is driven to slide along the extending direction of the length of the first sliding slot 511. The extending direction of the length of the first sliding slot 511 is the first extending direction X.

When the display device is in the flat state, the first sliding block 512 is located at one end of the first sliding slot 511 close to the second movable end 221. When the display device is folded, the first sliding block 512 drives the first movable end 211 to slide along the first sliding slot 511, and the first sliding block 512 slides in a direction away from the second movable end 221. When the display device is in the folded state, the first sliding block 512 moves to an end of the first sliding slot 511 away from the second movable end 221.

Illustratively, the first sliding slot 511 is an arc-shaped slot, and the first sliding slot 511 is curved away from the first surface 100 a. In the unfolding or folding process of the display device, the motion track of the first movable end 211 is similar to the shape of the arc-shaped groove, and the first sliding block 512 and the first sliding groove 511 slide smoothly.

In other examples, the first sliding slot 511 is disposed on the first movable end 211, and the first slider 512 is disposed on the first driven portion 32. The principle is similar to that of the first sliding slot 511 disposed on the first driven portion 32 and the first sliding block 512 disposed on the first movable end 211, and the description thereof is omitted.

In addition, the driven part of the second driving element 40 is connected to the movable end of the second bending support 22 through a second sliding assembly, and the second sliding assembly includes a second sliding slot and a second sliding block. The second sliding groove is arranged on one of the second driven part 42 and the second movable end 221; the second slider is disposed on the other of the second driven portion 42 and the second movable end 221. The principle is similar to that of the first sliding assembly 51, and the description is omitted.

Illustratively, the second sliding slot is an arc-shaped slot, and the second sliding slot is curved in a direction away from the first surface 100 a. The principle is similar to that of the first sliding slot 511, and is not described in detail.

As shown in fig. 3, when the display device is in the folded state, the first movable end 211 is located at an end of the first driven portion 32 away from the second driven portion 42, and the second movable end 221 is located at an end of the second driven portion 42 away from the first driven portion 32. The first bending support 21 and the second bending support 22 form a drip-like shape therebetween, so that the flexible screen 80 of the bending region 83 forms a drip-like shape. Thus, the first planar area 81 and the second planar area 82 are tightly attached to each other, so that foreign matters such as external dust can be prevented from entering between the first planar area 81 and the second planar area 82, and abrasion to the flexible screens 80 of the first planar area 81 and the second planar area 82 can be avoided.

In some embodiments, as shown in fig. 2, at least a part of the surface of the first bending support 21 away from the first surface 100a is an inclined surface. For example, an end of the first bending support 21 close to the second bending support 22 is inclined toward a direction close to the first surface 100a compared to an end of the first bending support 21 far from the second bending support 22. I.e., the portion near the first movable end 211 is set to be thin. In this way, during the folding process of the display device, the interference caused by the over-thickness of the first movable end 211 to the rest of the structures in the display device during the movement process can be avoided. In addition, the rest of the first bending support member 21 can be set to be thicker, the strength of the first bending support member 21 is higher, and the supporting effect on the flexible screen 80 is better.

In other examples, the surface of the first bending support 21 away from the first surface 100a is an inclined surface as a whole. It is possible to further prevent the first bending support 21 from interfering with the rest of the structure in the display device during the folding process.

At least a part of the surface of the second bending support 22 away from the first surface 100a is an inclined surface. The principle is similar to that of the first bending support 21, and is not described in detail.

In some embodiments, as shown in fig. 1 and 8, the first driven portion 32 and the second driven portion 42 are connected by a first rotating member 60. For example, the first rotating member 60 may be a pair of gears that mesh with each other. The first driven portion 32 and the second driven portion 42 can be moved synchronously by the first rotating member 60. In this way, the first driven portion 32 and the second driven portion 42 drive the first bending supporting element 21 and the second bending supporting element 22 to move synchronously, and the acting forces of the two bending supporting elements on the flexible screen 80 are balanced.

In some embodiments, continuing to be shown in fig. 1 and 9, first planar support 11 and second planar support 12 are connected by a connection assembly. The connecting assembly comprises a first connecting piece 71 and a second connecting piece 72, wherein the first connecting piece 71 is arranged on one side of the first plane support 11 close to the second plane support 12, and the second connecting piece 72 is arranged on one side of the second plane support 12 close to the first plane support 11. The first connecting member 71 and the second connecting member 72 are connected to each other by a second rotating member 73. In some examples, the second rotating member 73 may be a pair of gears engaged with each other, the first plane supporting member 11 and the second plane supporting member 12 may move synchronously, the acting forces of the first plane supporting member 11 and the second plane supporting member 12 on the flexible screen 80 are balanced, and the structure of the pair of gears is simple. In other examples, the second rotating member 73 may also be a hinge structure, and the control of the hinge structure is more precise.

As shown in fig. 7 and 8, the first bending support 21 may be rotatably coupled to the first coupling member 71 through the first rotation coupling portion 21a, and the first coupling member 71 is fixed to the first plane support 11, so that the first bending support 21 is indirectly rotatably coupled to the first plane support 11.

The first plane supporting element 11 can be fixed on the housing 90, which is equivalent to the first bending supporting element 21 indirectly rotatably connected to the housing 90, so that the first bending supporting element 21 can be indirectly supported and fixed by the housing 90, thereby realizing the rotation of the first bending supporting element 21.

The second bending support 22 may be rotatably coupled to the second coupling member 72 by a second rotation coupling portion 22 a. The principle is similar to that of the first bending support 21, and is not described in detail.

With continued reference to fig. 7 and 8, the first driven part 32 may be rotatably coupled to the housing 90 by a third rotation coupling part 32a, such that the first driven part 32 may be supported and fixed by the housing 90 to thereby achieve rotation of the first driven part 32.

The second driven portion 42 can be rotatably connected to the housing 90 through a fourth rotation connecting portion 42a, and the principle thereof is similar to that of the first driven portion 32, and thus the description thereof is omitted.

As shown in fig. 1, in the second extending direction Y along the foldable supporting device 100, the connection point of the first connecting member 71 and the second connecting member 72, and the connection point of the first driven part 32 and the second driven part 42 are located on the same straight line, i.e., both located on the dashed line AA shown in fig. 1.

In this way, the first connecting member 71 and the second connecting member 72, and the first driven portion 32 and the second driven portion 42, act relatively uniformly on the flexible screen 80 on both sides of the dotted line AA in fig. 1 during the mutual rotation.

In some embodiments, the first surface 100a has a flexible screen placement area thereon for corresponding to the flexible screen 80, and the flexible screen placement area is used for fixing and supporting the flexible screen 80.

As in fig. 1, a dotted-line box P shows a flexible screen placement area. It will be appreciated that the flexible screen placement area may also be of a greater or lesser extent than indicated by the dashed box P.

At least part of the plane supporting part and at least part of the bending supporting part are positioned in the flexible screen placing area. In this way, both the planar and the bending zones 83 of the flexible screen 80 can be supported by the support.

And a distance is reserved between the flexible screen placing area and the driving assembly along the second extending direction Y. The drive assembly may be located outside the flexible screen placement area. Therefore, the driven part of the driving assembly can be prevented from rubbing or extruding the flexible screen 80 in the moving process, and the flexible screen 80 is prevented from being damaged.

In some examples, as shown in fig. 1, the number of the first connectors 71 may be two, and two first connectors 71 are respectively located at two ends of the first planar support 11 along the second extending direction Y. Along the second extending direction Y, the first driving element 30 may be located between the first connecting element 71 and the first bending supporting element 21, and a space may be formed between the first driving element 30 and the first connecting element 71. In this way, the first driving member 30 and the first connecting member 71 can be prevented from interfering with each other during the folding or unfolding process.

The second connecting member 72 is similar to the first connecting member 71 in arrangement and principle, and is not described in detail.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foldable support device is characterized by being applied to a flexible screen;

the foldable supporting device comprises a first surface and a second surface which are oppositely arranged, the first surface is used for being attached to the flexible screen, and the foldable supporting device comprises at least two plane supporting parts, at least one bending supporting part and a driving assembly; the bending support part is connected between two adjacent plane support parts and comprises a first bending support part and a second bending support part, and the first bending support part and the second bending support part are respectively in one-to-one corresponding rotary connection with the two adjacent plane support parts;

the first driving piece is used for driving the first bending support piece to be close to the end part of the second bending support piece to move towards the direction close to the first surface, the second driving piece is used for driving the second bending support piece to be close to the end part of the first bending support piece to move towards the direction close to the first surface, so that the first bending support piece is close to the surface on one side of the first surface and the second bending support piece is close to the surface on one side of the first surface to jointly form a bending surface, the bending surface faces the direction of the first surface to be bent, and the bending surface is used for abutting against a flexible screen in a bending area to form a flattening adjustment state of the foldable supporting device.

2. The collapsible support device of claim 1, wherein the first and second drivers each comprise a driving portion and a driven portion, the driving and driven portions being in linkage with each other;

the movable end of the second bending support piece is movably connected with the driven portion of the second driving piece, and the driving portion of the second driving piece is used for driving the driven portion of the second driving piece to move towards the direction close to the first surface, so that the movable end of the second bending support piece moves towards the direction close to the first surface.

3. The foldable support device of claim 2, wherein the driving portion has a driving surface on a side thereof adjacent to the first surface, and an end of the driven portion remote from the first surface abuts against the driving surface;

preferably, a limiting groove is formed in the driving surface, the limiting groove extends in the direction from the first bending support piece to the second bending support piece, and one end, away from the first surface, of the driven portion abuts against the inner wall surface of the limiting groove.

4. The collapsible support device of claim 3, wherein the drive surface is a first inclined surface; the surface of the driven part close to one side of the driving part is a second inclined surface matched with the driving surface;

the driving part of the first driving element and the driving part of the second driving element move back and forth in the directions of approaching to and departing from each other;

the driving part of the first driving part and the driving part of the second driving part move towards the directions away from each other to form a flattening adjustment state of the foldable supporting device; the driving part of the first driving piece and the driving part of the second driving piece move towards the direction of mutual approaching to form a flattening state of the foldable supporting device; the two plane supporting parts are moved towards the direction close to the first surface so as to fold the two plane supporting parts to form a folded state of the foldable supporting device;

preferably, the driving surface is a plane which is obliquely arranged; or the driving surface is an arc surface which is obliquely arranged, and the driving surface is bent towards the direction far away from the first surface.

5. The foldable support device according to any one of claims 2 to 4, wherein the driven portion of the first driving member and the movable end of the first bending support member, and the driven portion of the second driving member and the movable end of the second bending support member are connected by a sliding assembly;

the sliding block is arranged on the other one of the driven part of the first driving piece and the movable end of the first bending supporting piece and is arranged on the other one of the driven part of the second driving piece and the movable end of the second bending supporting piece;

preferably, the sliding groove is an arc-shaped groove, and the sliding groove is bent towards a direction far away from the first surface.

6. The foldable support device of any one of claims 1 to 4, wherein at least a portion of a side of the first folding support remote from the first surface is an inclined surface;

and/or at least part of the surface of one side, far away from the first surface, of the second bending support piece is an inclined surface.

7. The foldable support device according to any one of claims 1 to 4, wherein when the foldable support device is in the unfolded adjustment state, an included angle between a plane of the first bending support member on a side close to the first surface and a horizontal plane and an included angle between a plane of the second bending support member on a side close to the first surface and the horizontal plane are not more than 5 degrees;

preferably, the included angle between the surface of the first bending support piece close to one side of the first surface and the horizontal plane is equal to the included angle between the surface of the second bending support piece close to one side of the first surface and the horizontal plane.

8. The foldable support device of any one of claims 2 to 4, wherein the driven portion of the first drive member is connected to the driven portion of the second drive member by a first rotation member;

the at least two plane supporting parts are a first plane supporting part and a second plane supporting part, and the first plane supporting part and the second plane supporting part are connected through a connecting assembly;

the connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on one side, close to the second planar support, of the first planar support, and the second connecting piece is arranged on one side, close to the first planar support, of the second planar support;

preferably, in a second extending direction along the foldable supporting device, the connecting point of the first connecting piece and the second connecting piece and the connecting point of the driven part of the first driving piece and the driven part of the second driving piece are positioned on the same straight line; the second extending direction and the first extending direction are perpendicular to each other and are parallel to the first surface.

9. The foldable support device of any one of claims 1 to 4, wherein the first surface has a flexible screen placement area thereon, the flexible screen placement area being adapted to correspond to the flexible screen, at least a portion of the planar support portion and at least a portion of the bend support portion being located within the flexible screen placement area;

the flexible screen placing area and the driving assembly are spaced.

10. A display device comprising a housing, a flexible screen, and the foldable support device of any one of claims 1-9, wherein the flexible screen and the foldable support device are both located in the housing, and wherein the foldable support device is located on a backlight side of the flexible screen.