CN112041808A

CN112041808A - Hinge device and flexible display device

Info

Publication number: CN112041808A
Application number: CN201880087885.XA
Authority: CN
Inventors: 廖乐
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2018-03-12
Filing date: 2018-03-12
Publication date: 2020-12-04
Also published as: WO2019173950A1

Abstract

The invention discloses a hinge device and a flexible display device. The hinge device comprises a first moving part, a second moving part and a limiting part, the second moving part is movably connected with the first moving part, the limiting part limits the moving range of the first moving part when the first moving part moves relative to the second moving part, and the first moving part drives the hinge device to deform when moving relative to the second moving part. The hinge device can be bent or folded into different shapes to meet the application requirements of different occasions. In addition, the flexible device of the invention adopts the hinge device, so that the structure is simple, and the flexible functional screen of the flexible device is not stretched when being bent or folded.

Description

Hinge device and flexible display device

Technical Field

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

Background

With the development of display technology, consumers have increasingly diversified and personalized demands for display modes, display effects and the like of display devices. Compared with the traditional display device, the flexible functional screen has the advantages of being foldable, transparent, curved, flexible, stretchable and the like, and is widely favored by consumers.

However, the existing flexible functional screen is generally used for products with fixed curvature, and the characteristics of the flexible functional screen are not fully utilized.

Disclosure of Invention

In view of the above-mentioned problems in the prior art, the present invention provides a deformable hinge device.

In addition, the invention also provides a flexible display device applying the hinge device.

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

in a first aspect, the present invention provides a hinge device, which includes a first moving member, a second moving member, and a limiting member, where the second moving member is movably connected to the first moving member, the limiting member limits a movement range of the first moving member when the first moving member moves relative to the second moving member, and the first moving member drives the hinge device to deform when moving relative to the second moving member.

In a second aspect, the present invention further provides a flexible display device, which includes the hinge device, the support plate, and the flexible functional screen, wherein the support plate is used for supporting the flexible functional screen and is disposed between the hinge device and the flexible functional screen.

Compared with the prior art, in the hinge device provided by the embodiment of the invention, the second movable piece is movably connected with the first movable piece, the limiting piece limits the moving range of the first movable piece when the first movable piece moves relative to the second movable piece, and the first movable piece drives the hinge device to deform when moving relative to the second movable piece, so that the hinge device has different shapes to meet application requirements of different occasions. In addition, the flexible device of the invention adopts the hinge device, so that the structure is simple, and the flexible functional screen of the flexible device is not stretched when being bent or folded.

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 only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a hinge device in a deployed state according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of a hinge device according to an embodiment of the present invention.

Fig. 3 is a partially enlarged view of a first hinge assembly of the hinge device of fig. 2.

Fig. 4 is a partially exploded enlarged view of the second hinge assembly of fig. 2.

Fig. 5 is another angular view of the second link assembly of fig. 4.

FIG. 6 is an enlarged view of the second movable member of the second link assembly of FIG. 4.

FIG. 7 is an enlarged view of another angle of the second movable member of the second link assembly of FIG. 4.

FIG. 8 is a front elevational view of the second movable member of the second link assembly of FIG. 4.

Fig. 9 is a partial structural view of a first hinge assembly of the hinge device according to the embodiment of the present invention.

Fig. 10 is a cross-sectional view of the hinge device of fig. 1 taken along the X-X direction.

Fig. 11 is an enlarged view of the hinge device of fig. 10.

Fig. 12 is a cross-sectional view of the hinge assembly of fig. 1 taken in the direction XII-XII.

Fig. 13 is an enlarged view of the hinge device of fig. 12.

Fig. 14 is a structural diagram of a hinge device in a bent state according to an embodiment of the present invention.

Fig. 15 is a cross-sectional view of the hinge device of fig. 9 taken along the direction XV-XV.

Fig. 16 is a cross-sectional view of the hinge device of fig. 9 taken along the direction XVI-XVI.

FIG. 17 is a schematic view of a flexible device in an expanded state according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, elements, components, and/or groups thereof. The following description is of the preferred embodiment for carrying out the invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.

Referring to fig. 1, a hinge device 100 is provided according to an embodiment of the present invention. The hinge device 100 includes a plurality of brackets 10 and at least one flexible hinge 20 movably connected to the plurality of brackets 10.

Referring to fig. 1 and fig. 2, in the present embodiment, the plurality of brackets 10 are aligned. The plurality of brackets 10 includes a first bracket 11 and two opposite second brackets 12.

The first frame 11 includes a flat top 1101, two opposing first sides 1102 and two opposing second sides 1103. The two second side surfaces 1103 are opposite to the longitudinal direction of the first support 11. The edge of the top 1101 of the first bracket 11 is opened with two opposite openings 111 along the length direction, and an elongated flange 112 is formed at the opening 111 of the first bracket 11. Each of the openings 111 extends through two first sides 1102 of the first bracket 11 and one of the second sides 1103.

Each of the second brackets 12 includes a flat top surface 1201, two opposite first side surfaces 1202 and two opposite second side surfaces 1203, and the two second side surfaces 1203 are opposite to the length direction of the second bracket 12. The edge of the top surface 1201 of the second bracket 12 is provided with an opening 121 along the length direction thereof, and an elongated flange 122 is formed at the opening 121 of the second bracket 12. Each of the openings 121 extends through one of the first sides 1202 and one of the second sides 1203 of the second frame 12.

It is understood that the number of the brackets 10 is set according to the number of the flexible hinges 20, and is used to support the flexible hinges 20 and to fix the flexible hinges 20 at a predetermined position.

Referring to fig. 2-3, each of the flexible hinges 20 includes a first link assembly 3, two second link assemblies 4, and a plurality of fasteners 5. The two second chain link assemblies 4 are respectively arranged on two sides of the first chain link assembly 3 and fixedly connected with the first chain link assembly 3. When the first link assemblies 3 move relative to the second link assemblies 4, the hinge device 100 is driven to deform.

Referring to fig. 2 and 3, in the present embodiment, each of the first link assemblies 3 includes a plurality of first link plates 31, a plurality of second link plates 32 and two opposite third link plates 33. The first link plates 31 and the second link plates 32 are connected with the first bracket 11 and the second bracket 12 through the third link plates 33, and the first link plates 31 are fixedly connected with the second link assembly 4, so that the first link assembly 3 is fixedly connected with the second link assembly 4. The plurality of first link plates 31, the plurality of second link plates 32, and the two third link plates 33 are aligned and linearly arranged. Each of the first link plates 31 and each of the second link plates 32 are hinged side by side and staggered, that is, adjacent first link plates 31 and adjacent second link plates 32 are spaced apart.

It will be appreciated that in this embodiment, each of the first link assemblies 3 is symmetrical about its centre line, as shown in figure 2. The center line of the first link assembly 3 includes a first center line X parallel to the length direction of the first link assembly 3 and a second center line Y perpendicular to the first center line X, so that the hinge device 100 is stressed in a balanced manner when deformed, and can be bent into a regular shape.

As shown in fig. 3, each of the first link plates 31 extends outwardly from two opposite connecting blocks 311 along the middle of the opposite side surfaces in the length direction thereof. The middle part of each connecting block 311 is provided with a locking hole 312 for the locking piece 5 to pass through. The cross-sectional shape of each of the first link plates 31 perpendicular to the longitudinal direction of the first link plate 31 is substantially trapezoidal. Each of the first link plates 31 has opposite curved top and

bottom surfaces

3101 and 3102, two opposite flat first side surfaces 3103 and two opposite flat second side surfaces 3104. In this embodiment, the two first side surfaces 3103 are opposite to the longitudinal direction of the first link plate 31. The top surface 3101 of the first link plate 31 is a concave surface of an arc shape curved inward with respect to the first link plate 31, and the bottom surface 3102 of the first link plate 31 is a convex surface of an arc shape curved outward with respect to the first link plate 31. The top surface 3101 of the first link plate 31 is parallel to and concentric with the bottom surface 3102 of the first link plate 31. The first side surface 3103 of the first link plate 31 and the top surface 3102 of the first link plate 31 form an included angle, which is an obtuse angle. The second side surface 3104 of the first link plate 31 is perpendicular to the top surface 3101 and the bottom surface 3102 of the first link plate 31.

In this embodiment, the two connecting blocks 311 are respectively vertically disposed on opposite side surfaces of the first link plate 31, and are connected to the top surface 3101 of the first link plate 31. Specifically, the connecting block 311 has a flat top end face 3111. The connecting block 311 is protruded from the middle of the top end of the second side surface 3104 of the first chain plate 31, and the top end surface 3111 of the connecting block 311 is flush with the top surface 3101 of the first chain plate 31, i.e. the top end surface 3111 of the connecting block 311 is coplanar with the top surface 3101 of the first chain plate 31, so that the hinge device 100 can be deformed to have a regular surface, thereby better adapting to the shape required by the user.

It can be understood that, in the embodiment, the structure of the second link plate 32 is similar to that of the first link plate 31, so that the sizes, names, positional relationships, etc. of the elements included in the second link plate 32 can all refer to the first link plate 31, and are not described herein again. In contrast, both end faces of the second link plate 32 in the length direction thereof do not extend the connecting pieces 311 of the first link plate 31.

The structure of the third link plate 33 is similar to that of the first link plate 31, so that the sizes, names, positional relationships, etc. of the elements included in the third link plate 33 can be referred to the first link plate 31, and the description thereof is omitted. In contrast, both end surfaces of the third link plate 33 in the length direction thereof do not extend to the connecting piece 311 of the first link plate 31, and the bottom surface 3302 of the third link plate 33 is provided with an opening 331 along the edge from the side facing away from the first link plate 31, and an elongated flange 332 is formed at the opening 331 of the third link plate 33. The opening 331 penetrates one of the first side surfaces 3303 and two of the second side surfaces 3304 of the third link plate 33.

In this embodiment, the opening 331 of the third link plate matches with the flange 112 of the first bracket 11 or the flange 122 of the second bracket 12. The flange 332 of the third link plate is fitted into the opening 111 of the first bracket 11 or the opening 121 of the second bracket 12.

One sides of the plurality of first chain plates 31, the plurality of second chain plates 32 and the two third chain plates 33 are fixedly hinged and connected, and the other sides of the plurality of first chain plates 31, the plurality of second chain plates 32 and the two third chain plates 33 are movably hinged and connected. Specifically, when the hinge device 100 is in the unfolded state (i.e., the hinge device 100 is not deformed), a gap 35 is formed between the top surface 3101 of the first link plate 31 and the top surface 3201 of the adjacent second link plate 32 or the top surface 3301 of the third link plate 33, that is, an included angle is formed between the first side surface 3103 of the first link plate 31 and the first side surface 3203 of the adjacent second link plate 32 or the third side surface 3303 of the third link plate 33, and the included angle is an acute angle; and the bottom surface 3102 of the first link plate 31 abuts the bottom surface 3202 of the adjacent second link plate 32 or the bottom surface 3302 of the third link plate 33. When the hinge device 100 is in the bent state, the top surface 3101 of the first link plate 31 is coplanar with the top surface 3201 of the adjacent second link plate 32 or the top surface 3301 of the third link plate 33, i.e., the top surface 3101 of the first link plate 31 and the top surface 3201 of the adjacent second link plate 32 or the top surface 3301 of the third link plate 33 together form a continuous curved surface.

It is understood that in other embodiments, the hinge device 100 may omit the third link assembly 3, such as by replacing it with a link or other hinge structure, i.e., the hinge device 100 may provide the third link assembly 3 according to actual needs.

Referring to fig. 4, in an embodiment, the hinge device 100 includes a first movable member 41, a second movable member 42, and a position-limiting member 44. The first movable member 41 is movably connected to the second movable member 42, and the limiting member 44 is located between the first movable member 41 and the second movable member 42. The limiting member 44 limits the moving range of the first movable member 41 when the first movable member 41 moves relative to the second movable member 42, and the first movable member 41 drives the hinge device 100 to deform when moving relative to the second movable member 42. In other embodiments, the second link assembly 4 further includes a third movable member 43, wherein the third movable member 43 is partially similar in structure to the first movable member 41. The limiting member 44 limits the moving range of the first movable member 41 when the first movable member 41 moves relative to the third movable member 43, and the third movable members 43 all move relative to the first movable member 41 to drive the hinge device 100 to deform. It is understood that the hinge device 100 of the present embodiment can select the third movable member 43 according to the requirement, and select other connecting members to connect the first movable member 41 and the second movable member 42 with the bracket 10.

Referring to fig. 4 and 5, in the present embodiment, each second link assembly 4 is symmetrical from its center line. Each of the second link assemblies 4 includes a plurality of first movable members 41, a plurality of second movable members 42, two third movable members 43, and a plurality of position limiting members 44. The plurality of first moving members 41, the plurality of second moving members 42, and the two third moving members 43 are movably connected to each other. In this embodiment, the two third movable members 43 are fixedly connected to the first support 11 and the second support 12, the second movable member 42 is fixedly connected to the first link assembly 3 through the locking member 5, and the first movable member 41 is movably disposed between two adjacent second movable members 42. The position-limiting members 44 limit the movable range of the first movable member 41 and the third movable member 43 when the first movable member 41 and the third movable member 43 move relative to the second movable member 42.

Each of said first movable members 41 is symmetrical from its own centre line. Each of the first movable members 41 includes a first base 411, two opposite side wings 412 extending perpendicularly and outwardly from two sides of the first base 411, and a tail 413 disposed between the two side wings 413. The two side wings 413 are symmetrically distributed from the tail 413. The side wing 412 of the first movable member 41 is close to or away from the stopper 44 when the hinge device 100 is deformed.

The side wing 412 of each of the first movable members 412 is generally trapezoidal in cross-section. The side wing 412 of the first moveable member 412 has an arcuate inner surface 4121 facing the flight 413 and an outer surface 4122 facing away from the flight. The inner surface 4121 and the outer surface 4122 of the flank 412 of said first mobile element 41 are parallel and concentric to each other.

Two arc notches 4131 respectively opposite to the two side wings 412 are formed on two sides of the tail wing 413, and an arc groove 414 is formed at each notch 4131 and one side wing 412. Each of the arcuate slots 414 has two opposing inner concave arcuate slot surfaces 4141. One end surface of the first base plate 411 of each first movable member 41 extends perpendicularly outward to form a limiting block 415, so as to limit the movement of the second movable member 42 in a predetermined space. Two opposite sides of the tail 413 are provided with two opposite concave arc surfaces 4132 near the notch 4131, so as to realize the sliding of the second movable member 42. The bottom of each concave arc 4132 forms a convex corner 4133 to define the range of motion of the second movable member 42.

The stop 415 has an arcuate top surface 4151. The top surface 4151 of the stopper 415 is curved inward from the first substrate 411 to form an arc-shaped arch surface, and forms a concave surface. The first substrate 411 is provided with two opposite arc-shaped sliding portions 416 from two sides of the limiting block 415. The two sliding portions 416 of the first substrate 411 are disposed on opposite sides of the stopper 415. The outer side surface of each sliding portion 416 of the first substrate 411 is connected with and smoothly transits to the outer surface 4122 of the corresponding side wing 412.

Each of the second movable members 42 is symmetrical about its centerline. Each of the second movable members 42 includes a second base plate 421, a ridge plate 422 extending perpendicularly outward from the middle of one side of the second base plate 421, and two guide blocks 423 protruding from two sides of the second base plate 421 and opposite to the ridge plate 422. A guide groove 424 is formed between the ridge plate 422 and each guide block 423, and the ridge plate 422 and the guide blocks 423 are arranged at intervals. The shape of the guide groove 424 of the second movable member 42 matches the shape of the flank 412 of the first movable member 41 to enable the flank 412 of the first movable member 41 to slide within the guide groove 424 of the second movable member 42. The limiting member 44 is inserted into the guide groove 424. Therefore, the stopper 44 is inserted into the guide groove 424 of the second movable member 42 at the side wing 412 of the first movable member 41 to limit the moving range of the second movable member 42 relative to the first movable member 41.

The middle of the top end of the second base plate 421 near the spine 422 is provided with a receiving groove 4211 for receiving the connecting block 311 of the first link assembly 3. The bottom of the accommodating groove 4211 is provided with a locking hole 4212 which is opposite to the locking hole 312 of the connecting block 311. The locking member 5 can pass through the locking hole 312 of the connecting block 311 and the locking hole 4212 of the second base plate 421, so that the first link assembly 3 is fixedly connected to the second link assembly 4.

It will be appreciated that when the hinge assembly 100 is bent or folded, the spine 422 of the second moveable member 42 is adjacent the stop 415 of the first moveable member 41 when the hinge assembly 100 is deformed. When the hinge assembly 100 is in the extended state (i.e., the flat state), the spine 422 of the second moveable member 42 is spaced away from the stop 415 of the first moveable member 41 when the hinge assembly 100 is deformed.

The second base plate 421 has two opposite arc-shaped sliding portions 425 and a limiting portion 426 protruding outward and disposed between the sliding portions 425, and a limiting groove 427 is formed between each sliding portion 425 and the limiting portion 426 to limit the second moving member 42 to move in a limited space range relative to the first moving member 41 or the third moving member 43. The sliding portion 425 of the second movable member 422 is matched with the concave arc surface 4132 of the tail 413, so that the first movable member 41 can move relative to the second movable member 42. The outer side surface of each sliding portion 425 is an arc-shaped surface, and the length of the outer side surface is greater than that of the outer side surface of the adjacent limiting portion 426. The outer side surface of each sliding portion 425 and the outer side surface of the adjacent position-limiting portion 426 together define the position-limiting groove 427. The stopper groove 427 is recessed inward with respect to the second substrate 421 to form a substantially triangular shape.

It will be appreciated that the retaining groove 427 of the second movable member 42 cooperates with the corner 4133 of the first movable member 41. When the position-limiting member 44 is separated from the side wing 412 of the first movable member 41, the corner 4133 of the second movable member 42 is embedded in the position-limiting groove 427; when the stopper 44 abuts against the wing 412 of the first movable member 41, the corner 4133 of the second movable member 42 is separated from the stopper groove 427.

In this embodiment, the second substrate 421 has two opposite position-limiting holes 4213 near the position-limiting groove 427. The stopper hole 4213 penetrates the front and rear surfaces of the second substrate 421. The limiting holes 4213 are symmetrically arranged on two opposite sides of the accommodating groove 4211. The guide groove 424, the limit groove 427, and the limit hole 4213 of the second movable member 42 are mutually penetrated. The limiting hole 4213 of the second substrate is penetrated through the guide groove 424, and the limiting member 44 can pass through the limiting hole 4213 and be inserted into the guide groove 424.

In this embodiment, the ridge plate 422 protrudes outward relative to the guide block 423 on a side away from the second substrate 421. The middle of the top end of one side of the ridge plate 422 departing from the second base plate 421 is provided with a positioning groove 4222. The positioning groove 4222 of the ridge plate 422 is opposite to the containing groove 4211 of the second base plate 421. The end surface of the ridge plate 422 close to the positioning groove 4222 is provided with a locking hole 4221. In this embodiment, the locking hole 4221 is disposed below the positioning groove 4222.

Referring to fig. 7 to 9, one of the guiding blocks 423 is received in the arc-shaped groove 414 of the first movable member 41. Each of the guide blocks 423 includes an arc-shaped first guide portion 4231 and an arc-shaped second guide portion 4232, a groove 4233 penetrating through a limiting hole 4213 of the second base plate 421 is formed between the first guide portion 4231 and the second guide portion 4232, and the limiting hole 4213 is exposed at the periphery of the groove 4233, so that the limiting member 44 passes through the groove 4233 and abuts against the first guide portion 4231 and the second guide portion 4232. The width of the sliding groove 4233 is slightly greater than or equal to the thickness of the side wing 412, and the shape of the sliding groove 4233 matches with the shape of the side wing 412, so that the first movable part 41 moves relative to the second movable part 42.

In this embodiment, the first guide portion 4231 of the guide block 423 contacts the sliding portion 425 of the second base plate 421 and protrudes outward relative to the sliding portion 425. An arc-shaped sliding groove 4234 is formed between the second guide portion 4232 and the ridge plate 422. The sliding groove 4234 is communicated with the groove 4233 and jointly forms the guide groove 424. The first guiding portion 4231 has a first arc surface 4231a facing away from the ridge plate 422, and the first arc surface 4231a of the first guiding portion 4231 is matched with the groove surface 4141 of the arc-shaped groove 414 of the first movable piece 41. The second guiding portion 4232 has a second arc surface 4232a protruding outward toward the spine 422, and the second arc surface 4232a of the second guiding portion 4232 is engaged with the inner surface 4121 of the side wing 412 of the first movable element 41.

As shown in fig. 9, in this embodiment, second movable member 42 has a curved top surface 4201 and a curved bottom surface 4202. The top surface 4201 of the second movable member 42 is parallel to and concentric with the bottom surface 4202 of the second movable member 42. The top surface 4201 of the second movable member 42 is an arcuate surface curved inwardly relative to the second movable member 42 to form a concave surface. The bottom surface 4202 of the second movable member 42 is an arcuate surface curved outwardly relative to the second movable member 42 to form a convex surface.

As shown in fig. 6 and 7, the second substrate 421 has a curved top surface 4211a and a curved bottom surface 4212 a. The cross-sectional area of the spine panel 422 is generally trapezoidal in shape. The ridge plate 422 has a curved top surface 4221a, a curved bottom surface 4222a, a flat side surface 4223a, two opposite concave cambered surfaces 4224a and a limiting surface 4225a connecting the top surface 4221a and the concave cambered surfaces 4224 a. The top surface 4201 of the second movable member 42 includes a top surface 4211a of the second base plate 421 and a top surface 4221a of the spine plate 422, and the top surface 4211 of the second base plate 421 is connected and coplanar with the top surface 4221a of the spine plate 422.

When the hinge device 100 deforms and the ridge plate 422 of the second movable member 42 abuts against the stop block 415, the top surface 4221a of the ridge plate 422 of the second movable member 42 and the top surface 4151 of the stop block 415 of the first movable member 41 jointly form a continuous arc surface.

It is understood that, in the present embodiment, as shown in fig. 6, the second arc surface 4232a of the second guide portion 4232 is parallel to the concave arc surface 4224a of the spine 422 to form the curved chute 4234. Further, the bending direction of the side wing 412 of the first movable fixing member 41 is consistent with the bending direction of the sliding groove 4234 of the second movable member 42, so that the side wing 412 of the first movable member 41 moves in the sliding groove 4234.

The structure of the third movable member 43 is similar to that of the first movable member 41, and therefore, the size, name, positional relationship, etc. of each element included in the third movable member 43 can be referred to the first movable member 41. In contrast, the third mobile element 43 has only one lateral wing 432 and comprises a joint 434 for connecting the support 10 and the third mobile element 43. In this embodiment, the shape structure of the side wing 432 of the third movable member 43 is identical to that of the side wing 412 of the first movable member 41, and details thereof are omitted here.

The third movable member 43 includes a third base 431, opposite side wings 432 and a tail wing 433 that extend perpendicularly outward from one side of the third base 431, and a joint block 434 that extends perpendicularly outward from one side of the tail wing 433 that faces away from the side wings 432. The side wing 432 of the third movable member 43 approaches or moves away from the stopper 44 when the hinge device 100 is deformed.

In this embodiment, an arc notch 4331 opposite to the side wing 432 is formed on one side of the tail 433 close to the third base plate 431, and an arc groove 435 is formed between the notch 4331 and the side wing 432. The arcuate slot 435 has two opposing inwardly concave arcuate slot faces. Two opposite concave arc surfaces 4332 are arranged on two opposite sides of the tail 433 near the notch 4331, and the concave arc surfaces 4332 of the tail 433 are matched with the arc-shaped sliding part 425 of the second movable part 422. The bottom of each concave arc surface 4332 forms a convex corner 4333, and the corner 4333 of the third movable member 43 is matched with the limiting groove 427 of the second movable member 42.

The third base 431 of each of the third movable members 43 extends perpendicularly and outwardly from the end surfaces adjacent to the tail wing 433 and the joint plate 434 to form a limit block 436, so as to limit the movement of the second movable member 42 in a predetermined space. The third base plate 431 has an arc-shaped sliding part 437 on the side facing away from the side wing 433. The sliding portion 437 of the third base plate 431 is adjacent to the stopper 436. The outer side surface of the sliding part 437 of the third base plate 431 is in contact with and smoothly transits to the outer surface of the side wing 432.

When the hinge assembly 100 is bent or folded, the spine 422 of the second movable member 42 approaches the stop block 436 of the third movable member 43 when the hinge assembly 100 is deformed. When the hinge assembly 100 is in the extended state (i.e., the flat state), the spine 422 of the second movable member 42 is spaced away from the stop block 436 of the third movable member 43 when the hinge assembly 100 is deformed.

Further, each of the position-limiting members 44 passes through the position-limiting hole 4213 of the second movable member 42 and the groove of the guide block 423, and abuts against the first guide portion 4231 and the second guide portion 4232 of the guide block 423, so that the side wing 412 of the first movable member 41 and/or the side wing 432 of the third movable member 43 is/are limited in the guide groove 424 of the second movable member 42. In the present embodiment, the position-limiting element 44 is, for example, but not limited to, a pin or a rotating shaft, and other elements capable of achieving position-limiting are also suitable for the present invention.

It is understood that the limiting member 44 is fixed to the second movable member 42 and disposed between the first movable member 41 and the second movable member 42, or disposed between the third movable member 43 and the second movable member 42. The stopper 44 abuts against the

side wings

412, 432 of the first movable member 41 and the third movable member 43 or is separated from the

side wings

412, 432 of the first movable member 41 and the third movable member 43 when the first movable member 41 and/or the third movable member 43 moves relative to the second movable member 42. Specifically, when the hinge device 100 is in the unfolded state, the stopper 44 abuts against the side wing 412 of the first movable member 41 and the side wing 432 of the third movable member 43. When the hinge device 100 is in the bending state, the stopper 44 is separated from the side edge 412 of the first movable member 41 and the side edge 432 of the third movable member 43.

In the present embodiment, each of the second link assemblies 4 further includes a plurality of retaining plates 45 and a plurality of locking members 46. Each of the locking members 46 is configured to fixedly connect the corresponding stop plate 45 to the second movable member 42, so as to limit the movement of the third movable member 43 in a predetermined space between the stop plate 45 and the first link assembly 3. The side wing 412 of the first movable element 41 and the side wing 432 of the third movable element 43 are interposed between the stopper plate 45 and the second base plate 421 of the second movable element 42.

Each of the limiting plates 45 is symmetrical from the center line thereof. The middle part of each limit plate 45 is provided with a locking hole 451 for the locking piece 46 to pass through. The middle of one end of the limiting plate 45 extends vertically outwards to form a positioning block 452, and the positioning block 452 of the limiting plate 45 is matched with the positioning slot 4222 of the second movable member 42. The positioning block 452 and the locking hole 451 are both located on the central line of the first limiting plate 45. In this embodiment, the positioning block 452 is located above the locking hole 451.

The stopper plate 45 has a curved top surface 4501 and a curved bottom surface 4502 that meets the top surface 4501. The top surface 4501 of the limiting plate 45 includes a first arc surface 4503 and two opposite second arc surfaces 4504 connected to the first arc surface, and the first arc surface 4503 and each of the second arc surfaces 4504 are in smooth transition. The first arc surface 403 of the limiting plate 45 is an arc surface that is inwardly curved relative to the limiting plate 45 to form a concave surface. The second arc surface 4504 of the limiting plate 45 is an arc surface that is outwardly curved with respect to the limiting plate 45 to form a convex surface. The bottom surface 4502 of the limiting plate 45 is an arc-shaped arcuate surface that is curved outward relative to the limiting plate 45 to form a convex surface.

In this embodiment, the positioning block 452 has a flat top surface 4521. The top surface 4521 of the positioning block 452 is flush with the first arc surface 4503 of the limiting plate 45, that is, the top surface 4521 of the positioning block 452 and the first arc surface 4503 of the limiting plate 45 are located on the same curved surface.

It is understood that the hinge device 100 can be provided with a plurality of flexible hinges according to different deformable states, so as to be suitable for different applications. For example, the hinge device 100 may be provided with two symmetrical flexible hinges 20, so that the hinge device 100 may be deformed into a circular shape.

Referring to fig. 9, a portion of the second link assembly 4 of the hinge apparatus 100 according to an embodiment of the present invention is shown in a deployed state. In this embodiment, the rotation axis of the first movable element 41 moving relative to the second movable element 42 is located outside the first movable element 41 and the second movable element 42, and the rotation axis of the third movable element 43 moving relative to the second movable element 42 is located outside the first movable element 41 and the third movable element 43. The rotation axis of the first movable member 41 moving relative to the second movable member 42 is aligned with the overlapping position of the first movable member 41 and the second movable member 42, and the rotation axis of the third movable member 43 moving relative to the first movable member 41 is aligned with the overlapping position of the first movable member 41 and the third movable member 43. The rotation axis of the first movable element 41 moving relative to the second movable element 42 is located directly below the junction between the bottom surface of the first movable element 41 and the bottom surface of the second movable element 42, and the rotation axis of the third movable element 43 moving relative to the first movable element 41 is located directly below the junction between the bottom surface of the first movable element 41 and the bottom surface of the third movable element 43.

Specifically, first movable member 41 has arcuate bottom surface 4102, second movable member 42 has arcuate bottom surface 4202, and third movable member 43 has arcuate bottom surface 4302. A rotation axis O is formed directly below the intersection of the bottom surface 4202 of the second movable element 42 and the bottom surface 4102 of the first movable element 41 and the bottom surface 4302 of the third movable element 43, respectively.

The second movable member 42 has a centerline a, and the two third movable members 43 adjacent to the second movable member 42 each have a centerline B and a centerline C. It is understood that the center line in the present invention refers to the symmetry axis. When the hinge device 100 is deformed or undeformed, the first distance d1 between the center line B of one of the third movable members 43 and the center line a of the second movable member 42 is always equal to the second distance d2 between the center line B of the other third movable member 43 and the center line a of the second movable member 42, so that the hinge device 100 can be prevented from stretching or compressing other components to which the hinge device 100 is applied during rotation. In this embodiment, the first movable member 41 and the third movable member 43 are rotatable relative to the second movable member 42 along two adjacent rotation axes O, and the rotation angle is about 30 degrees.

Fig. 10 to 13 are sectional views of the hinge device in the unfolded state according to the embodiment of the present invention. When the hinge assembly 100 is in a first state (undeformed state), the flexible hinge 20 is deployed relative to the stent 10. As shown in fig. 10 and 11, the joint 434 of each third movable member 43 is matched with the corresponding opening 111 of the first bracket 11 or the corresponding opening 121 of the second bracket 12, the sliding portion 437 of the third base plate 431 of the third movable member 43 is abutted against the second movable member 42, and a gap is formed between the limit block 436 of the third movable member 43 and the ridge plate 422 of the second movable member 42. The positioning block 442 of the position-limiting plate 45 is received in the positioning slot 4222 of the spine board 422, and the locking member 45 is locked in the locking hole 4221 of the spine board 422. The sliding portion 416 of the first base plate 411 of the first movable member 41 abuts against the concave arc surface 4224a of the ridge plate 422, and a gap is formed between the limiting block 415 of the first base plate 411 and the ridge plate 422 of the second movable member 42. The sliding portion 436 of the third base plate 431 of the third movable member 43 abuts against the concave arc 4224a of the ridge plate 422, and a gap is formed between the limiting block 435 of the third base plate 431 and the ridge plate 422 of the second movable member 42. A gap is formed between the first link plate 31 and the second link plate 32 or the third link plate 33.

Referring to fig. 12 and 13, the guiding block 423 of the second movable member 42 is slidably received in the arc-shaped slot 435 of the third movable member 43 or the arc-shaped slot 414 of the first movable member 41. The first guiding portions 4231 of the two guiding blocks 423 of the second movable member 42 are respectively abutted against the groove bottoms of the arc-shaped

grooves

435 and 414. The side wing 412 of the first movable element 41 and the side wing 432 of the third movable element 43 are respectively slidably accommodated in the two guide grooves 424 of the second movable element 42, the side wing 412 of the first movable element 41 and the side wing 432 of the third movable element 43 are respectively engaged with the two guide grooves 424 of the second movable element 42, and the side wing 412 of the first movable element 41 and the side wing 432 of the third movable element 43 respectively abut against the ridge plate 422 of the second movable element 42 and the second guide portion 4232 of the guide block 423. The stopper 44 passes through the stopper hole 4213 of the second base plate 421 of the second movable member 42 and passes through the stopper groove 427 of the guide block 423 to abut against the side wing 412 of the first movable member 41 and the side wing 432 of the third movable member 43, thereby restricting the side wing 412 of the first movable member 41 and the side wing 432 of the third movable member 43 from sliding in the guide groove 424 of the second movable member 42. In this embodiment, when the flexible hinge 20 is in the unfolded state, the side wing 412 of the first movable member 41 and the side wing 432 of the third movable member 43 are accommodated in one end of the guide slot 424 close to the stopper 44, and abut against the stopper 44. The

corner

4133, 4333 of the tail 433 of the first movable member 41 or the third movable member 43 is staggered from the limit groove 427 of the second base plate 421 of the second movable member 42.

Fig. 14 to 16 are sectional views illustrating a hinge device according to an embodiment of the present invention in a bent state. As shown in fig. 14, when the hinge device 100 is in the second state (deformed state), the flexible hinge 20 is bent with respect to the bracket 10, and the two second brackets 12 of the bracket 10 are disposed in an overlapping manner, and the first bracket 11 is disposed in parallel with and opposite to the second brackets 12. As shown in fig. 14 and 15, the engaging block 434 of the third movable member 43 is engaged with the opening 111 of the first bracket 11, and the engaging block 434 of the third movable member 43 is welded to the first bracket 11, so as to fixedly connect the second link assembly 4 to the bracket 10. The two opposite second supports 12 of the support 10 are stacked, and the two opposite flexible hinges 20 are bent relatively, so that the hinge device 100 is bent into a circular ring structure, so that the user can wear the wrist and use the wrist ring. The first link plate 31, the second link plate 32 and the third link plate 33 of the first link assembly 3 are in mutual abutting and smooth transition, so that the first link assembly 3 is enclosed to form a substantially circular arc-shaped outer surface 301 and an inner surface 302, and the fourth link assembly 4 is correspondingly enclosed to form a substantially circular arc-shaped outer surface 401 and an inner surface 402. An outer surface 301 of the first link assembly 3 and an outer surface 401 of the fourth link assembly 4 smoothly transition to form a continuous first arc surface, an inner surface 302 of the first link assembly 3 and an inner surface 402 of the fourth link assembly 4 also smoothly transition to form a continuous second arc surface, and the first arc surface and the second arc surface are substantially parallel.

The specific adjacent limiting plates 45 are mutually abutted and are surrounded to form an arc-shaped structure. The bottom surfaces 4502 of the plurality of limiting plates 45 are in smooth transition to form an outer convex arc surface 450a, and the top surfaces 4501 of the plurality of limiting plates 45 are in smooth transition to form an inner concave arc surface 450 b. The outward convex arc surface 450a of the limiting plate 45 is connected with and smoothly transits to the outer surface 301 of the first link assembly 3 to form a complete arc surface, and the inward concave arc surface 450b of the limiting plate 45, the bottom surfaces of the first moving member 41, the second moving member, and the third moving member 43 and the inner surface 302 of the first link assembly 3 are substantially located on the same curved surface and are connected with and smoothly transited to the top surface 1101 of the first bracket 11 and the top surface 1201 of the second bracket 12, so that the hinge device 100 can form a regular surface when being bent to be deformed into an arc structure suitable for wearing.

Further, the second movable member 42 of the second link assembly 4 rotates relative to the first movable member 41 and the third movable member 43, so that the first movable member 41, the second movable member 42 and the third movable member 43 are bent to form an arc-shaped structure matched with the external shape of the first link assembly 3.

As shown in fig. 15, the engaging block 434 of one of the third moving members 43 and the flange 332 of one of the third link plates 33 are respectively disposed at the opening 111 of the first bracket 11 and abut against the flange 112, and the engaging block 434 of the other of the third moving members 43 and the flange 332 of the other of the third link plates 33 are respectively disposed at the opening 121 of the second bracket 12 and abut against the flange 122. In this embodiment, the joint block 434 of the third movable member 43 is connected to the flange 112 of the first bracket 11 or the flange 122 of the second bracket 12 by welding, so as to fixedly connect the bracket 10 to the flexible hinge 20.

It will be appreciated that in other embodiments, the support frame 10 may be provided with mounting structure for fixed or movable attachment to the flexible hinge 20. The mounting structure here is divided into a fixed connection and/or a movable connection. For example, the third link head 43 is fixedly disposed on the bracket 10 by the fixed connection portion, such as, but not limited to, a locking member (e.g., a screw). The movable connection part can be connected with a sliding guide structure, a magnetic adsorption structure and the like.

The first base plate 411 of the first movable member 43 and the third base plate 431 of the third movable member 43 are respectively abutted against the concave arc surfaces 4224a of the two opposite sides of the ridge plate 422 of the second movable member 42. The positioning block 452 of the position-limiting plate 45 is received in the positioning slot 4222 of the spine 422 of the second movable member 42, so that the locking hole 451 of the position-limiting plate 45 is opposite to the locking hole 4221 of the spine 422, thereby facilitating the assembly of the position-limiting plate 45. The limit plate 45 is fastened to the ridge 422 of the second movable member 42 by the fastening member 46, so that the first movable member 43, the second movable member 42, and the third movable member 43 are hinged. When the flexible hinge 20 deforms relative to the bracket 10, the limit block 416 of the first movable member 43 and the limit block 435 of the third movable member 43 abut against the limit surface 4225a of the spine 422, so that the top surface of the first movable member 43, the top surface of the second movable member 42 and the top surface of the third movable member 43 form a continuous arc surface.

As shown in fig. 16, the side wing 412 of the first movable member 43 and the side wing 432 of the third movable member 43 are respectively accommodated in the two guide slots 424 corresponding to the second movable member 42, and both the side wing 412 of the first movable member 43 and the side wing 432 of the third movable member 43 are isolated from the position-limiting member 44, that is, the side wing 412 of the first movable member 43 and the side wing 432 of the third movable member 43 are respectively accommodated in one end of the two guide slots 424 away from the position-limiting member 44. Specifically, the bottom surfaces of the side wing 412 of the first movable member 43 and the side wing 432 of the third movable member 43 are respectively connected with and smoothly transition to the bottom surface 4231a of the guide block 43 of the second movable member 42 and the bottom surface 4222a of the spine 422 to form a continuous arc surface, which is the outward convex arc surface 401 of the second link assembly 4. The

edge

4133, 4333 of the tail wing 433 of the first movable member 43 or the third movable member 43 is embedded in the limiting groove 427 of the second base plate 421 of the second movable member 42 to limit the rotation of the first movable member 43 or the third movable member 43 relative to the second movable member 42, so as to prevent the rotation angle from being too large.

In this embodiment, when the flexible hinge 20 deforms relative to the bracket 10, the wing 412 of the first movable member 43 and the wing 432 of the third movable member 43 move in the guide groove 424 of the second movable member 42 toward the end away from the stopper 44, so as to realize the deformation of the hinge device 100.

Referring to fig. 1-13, when the hinge assembly 100 is assembled, the wing 412 of the first movable member 43 and the wings 432 of the third movable member 43 are aligned with the guide slot 424 of the second movable member 42 and inserted into the guide slot 424. Then, the side wing 412 of the first movable member 43 and the side wing 432 of the third movable member 43 are moved a distance within the guide slot 424 to expose the position-limiting hole 4213 in the guide slot 424. The stopper 44 is inserted into the stopper hole 4213 of the second base plate 421 of the second movable member 42 and the guide groove 424, so that the side wing 412 of the first movable member 43 and the side wing 432 of the third movable member 43 are limited in the guide groove 424, thereby preventing the first movable member 43 and the third movable member 43 from falling off. The positioning block 452 of the position-limiting plate 45 is accommodated in the positioning groove 4222 corresponding to the spine 422 of the second movable member 42, so that the locking hole 451 of the position-limiting plate 45 is aligned with the locking hole 4221 of the spine 422, and the locking member 46 passes through the locking hole 451 of the position-limiting plate 45 and is locked in the locking hole 4221 of the spine 422, thereby further realizing the hinge connection of the first movable member 43, the second movable member 42 and the third movable member 43. The connecting block 311 of the first link plate 31 of the first link assembly 3 is correspondingly received in the receiving groove 4211 of the second movable member 42, so that the locking hole 312 of the connecting block 311 is aligned with the locking hole 4212 of the receiving groove 4211 of the second movable member 42. The locking member 5 passes through the locking hole 312 of the connecting block 311 and is locked in the locking hole 4212 of the second movable member 42, so as to fixedly connect the third link assembly 3 and the fourth link assembly 4. The end of the second link plate 32 is fixed to the end of the tail 433 of the third movable member 43 by welding. The flange 332 of the third link plate 33 of the third link assembly 3 is received in the opening 111 of the first bracket 11 or the opening 121 of the second bracket 12, and the engaging block 414 of the first movable member 43 is welded to the flange 112 of the first bracket 11 or the flange 122 of the second bracket 12, so as to achieve the fixed connection between the bracket 10 and the flexible hinge 3.

It is understood that, in an embodiment, when the first movable member 41 and the second movable member 42 are assembled, the side wing 411 of the first movable member 41 and the side wing 432 of the third movable member 43 are inserted into the guide groove 424 before the stopper 44. Optionally, in another embodiment, when the first movable member 41 and the second movable member 42 are assembled, the side wing 411 and the side wing 432 of the third movable member 43 are inserted into the guide groove 424 of the second movable member 42 and then move to expose the limiting hole 4213, and the limiting member 44 is inserted into the limiting hole 4212 and the guide groove 424.

It should be understood that the third movable member 43 may also have the same structure as the first movable member 41, that is, both have a bilaterally symmetrical structure, and the first bracket 11 and the second bracket 12 are correspondingly provided with a structure fixed to the first movable member 43. In this case, the third movable element 43 is the first movable element 41, or the first movable element 41 can also be considered as the third movable element 43.

It is also understood that the position limiting member 44 is not limited to the above-mentioned separate element, but may be a part of the second movable member 42, i.e., the second movable member 42 may include the position limiting member 44. Further, the retaining member 44 is not limited to a pin or screw structure, but may be integrally formed with the second movable member, such as a snap or stop structure.

It is also understood that the movable connection between the second movable member 42 and the first movable member 41 is not limited to the above-mentioned manner, but may include other various movable connection manners, such as being pivoted by a screw, slidably connected by a sliding rail, elastically connected by a spring, and the like.

According to the hinge device disclosed by the embodiment of the invention, the deformation of the hinge device is realized through the deformation of the flexible hinge, so that the hinge device is deformed into an ideal ring shape, and the whole hinge device can be deformed into a regular surface so as to adapt to the application requirements of different occasions.

Referring to fig. 17, a flexible display device 1 according to an embodiment of the present invention is provided. The flexible display device 1 includes the hinge device 100, the supporting plate 200 and the flexible functional screen 300. The support plate 200 may be attached to the entire upper surface of the flexible functional screen 300 and serves to support and fix the entire flexible functional screen 300, and the support plate 200 is fixed below the hinge device 100, thereby facilitating the operation or viewing. Hinge device 100 can take place deformation to it is whole to drive flexible display device 1 takes place deformation, and then makes flexible display device 1 adapts to the application demand of different occasions, and because flexible function screen 300 directly sets up on hinge device 100, makes flexible device's overall structure is simple, and makes the cost of manufacture cheaper.

It will be appreciated that the deformation of the flexible display device 1 preferably changes from a flat configuration to a circular configuration. When in the flat form, the flexible display device 1 is entirely spread out, thereby facilitating the operation by the user. When in the form of a ring, the flexible display device 1 is rolled up as a whole to form a wearable device, which is convenient for the user to wear on. Of course, the form switched by the deformation of the flexible display device 1 may also be changed according to the requirement, so as to meet the requirements of more application occasions. Such as from dome to annular, from flat to wave, from U to S, etc.

The area and shape of the supporting plate 200 and the hinge device 100 are substantially the same as those of the flexible functional screen 300, so as to precisely realize the bending and folding of the display functional screen 10 of the display device 100. The support plate 200 is made of an elastic material having high hardness, such as a steel sheet, an iron sheet, a copper sheet, etc. The supporting plate 200 has a higher hardness than the flexible functional screen 300.

It can be understood that, since the flexible functional screen 300 is indirectly connected to the hinge device 100 through the supporting plate 200, and the deformation of the flexible functional screen 300 is driven by the deformation of the hinge device 100, the flexible functional screen 300 is reduced from being stretched or remaining unstretched in the deformation process.

It is understood that, in the present embodiment, the flexible display device 1 is, for example, but not limited to, any other products and components with display function, such as a mobile phone, a tablet computer, a display, a television, a smart watch, a VR head-mounted display, a vehicle-mounted display, and the like. The flexible functional screen 300 is, for example, a flexible touch screen or a flexible display screen. The flexible display screen is, for example, but not limited to, a product or a component having a display function, such as a liquid crystal display panel, a quantum dot display panel, electronic paper, a touch screen, a flexible solar cell panel, and a radio frequency tag.

The above embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

The utility model provides a hinge means, its characterized in that, hinge means includes first moving part, second moving part and locating part, the second moving part with first moving part swing joint, the locating part is in first moving part is relative when the second moving part activity is injectd the displacement range of first moving part, first moving part is relative drive when the second moving part activity hinge means takes place deformation.
The terminal of claim 1, wherein the axis of rotation about which the first movable member moves relative to the second movable member is located outside of the first movable member and the second movable member.
The hinge assembly of claim 2, wherein a rotational axis of movement of said first movable member relative to said second movable member is aligned with a location at which said first movable member and said second movable member overlap.
The hinge assembly of claim 2, wherein the axis of rotation about which the first movable member moves relative to the second movable member is located directly below the intersection of the bottom surface of the first movable member and the bottom surface of the second movable member.
The hinge assembly of claim 1, wherein the distance between the respective bottom surface midpoints of two adjacent first movable members with respect to the bottom surface midpoints of the second movable members remains constant when the hinge assembly is deformed or undeformed.
The hinge assembly of claim 1, wherein the retaining member is fixed to the second movable member.
The hinge assembly of claim 1, wherein the retaining member is positioned between the first movable member and the second movable member.
The hinge assembly according to claim 1, wherein the stopper abuts against or separates from the first movable member when the first movable member moves relative to the second movable member.
The hinge device according to any one of claims 1 to 8, wherein the second movable member is provided with a guide groove that limits a movement range of the first movable member, and the stopper member is inserted into the guide groove.
The hinge assembly of claim 9, wherein the first movable member includes a first base plate and a wing formed on the first base plate, the wing being inserted into the guide slot.
The hinge assembly of claim 10, wherein the second movable member includes a second base plate, a spine plate formed on the second base plate, and a guide block, the guide slot being formed between the spine plate and the guide block.
The hinge assembly as claimed in claim 10, wherein the side wing is inserted into the guide slot before the retaining member when the first movable member and the second movable member are assembled.
The hinge assembly as claimed in claim 12, wherein the second base plate defines a limiting hole communicating with the guide slot, and when the first movable member and the second movable member are assembled, the wing is inserted into the guide slot and then moved to expose the limiting hole, and the limiting member is inserted into the limiting hole and the guide slot.
The hinge assembly of any one of claims 1 to 8, wherein the retaining member is a pin or a shaft.
The hinge assembly of claim 11, wherein the first movable member further includes a first tail extending from the first base plate, the first tail being disposed opposite the side wing, the first tail and the side wing defining a first arcuate slot therebetween.
The hinge assembly of claim 15, wherein the guide block is slidably received within the first arcuate slot of the first movable member.
The hinge assembly of claim 11, wherein a stop is disposed at a top end of the first base plate of the first movable member and protrudes outward, and the spine plate of the second movable member approaches or moves away from the stop when the hinge assembly is deformed.
The hinge assembly of claim 17, wherein said stop is spaced from said side wing when said spine of said second movable member is proximate said stop; when the ridge plate of the second movable piece is far away from the limiting block, the limiting piece is abutted to the side wing.
The hinge assembly of claim 17, wherein a top surface of the spine of the second movable member and a top surface of the stop block of the first movable member together form a continuous arcuate surface when the spine of the second movable member abuts the stop block.
The hinge device as claimed in claim 11, wherein the guiding block includes a first guiding portion and a second guiding portion, a groove is formed between the first guiding portion and the second guiding portion, and the position-limiting member is inserted into the groove.
The hinge assembly of claim 20, wherein the second guide portion and the spine panel define a slot therebetween in communication with the groove, the side wing being movable within the slot.
The hinge assembly of claim 21, wherein the thickness of the side wings is less than or equal to the width of the sliding slots, and the profile of the sliding slots matches the profile of the side wings.
The hinge assembly as claimed in claim 11, wherein the second base plate of the second movable member further includes a sliding portion connected to the guide block and a stopper portion connected to the sliding portion, and a stopper groove is formed between the stopper portion and the sliding portion.
The hinge assembly of claim 23, wherein the guide block is convex toward the first movable member relative to the stop portion.
The hinge assembly as claimed in claim 23, wherein the first tail of the first movable member defines a projecting corner that fits into the retaining groove when the retainer is disengaged from the side wing; when the limiting piece is abutted to the side wing, the edge angle is separated from the limiting groove.
The hinge assembly of claim 11, further comprising a retainer plate and a locking member, wherein the retainer plate is fixedly coupled to the second movable member by the locking member to limit sliding receipt of the shoulder of the first movable member within the guide slot of the second movable member.
The hinge assembly as claimed in claim 26, wherein a positioning block extends outwardly from a middle portion of one end of the limiting plate, and the second movable member defines a positioning slot matching with the positioning block.
The hinge apparatus as claimed in claim 26, wherein the wing is sandwiched between the limiting plate and the second base plate.
The hinge assembly as claimed in any one of claims 1 to 28, further comprising a plurality of link plates hinged to each other, at least one of the link plates extending outwardly at both ends in a length direction thereof with two opposite connecting pieces, respectively, the plurality of link plates being fixedly connected to the second movable member through the connecting pieces.
The hinge assembly of claim 29 further including at least two brackets and a third movable member, each of said brackets being pivotally connected to a respective one of said link plates, and said brackets and said second movable member being fixedly connected by said third movable member.
A flexible display device, comprising a hinge device according to any one of claims 1 to 30, a support plate and a flexible functional screen, wherein the support plate is used for supporting the flexible functional screen and is arranged between the hinge device and the flexible functional screen.