CN114542585B

CN114542585B - Hinge and display device

Info

Publication number: CN114542585B
Application number: CN202210065391.XA
Authority: CN
Inventors: 叶佳镇
Original assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; Yecheng Optoelectronics Wuxi Co Ltd; General Interface Solution Ltd
Current assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; General Interface Solution Ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2023-04-11
Anticipated expiration: 2042-01-20
Also published as: CN114542585A; TW202331117A; TWI823245B

Abstract

The present application provides a hinge, which includes: the hinge comprises a plurality of hinge blocks, a hinge body and a hinge body, wherein each hinge block comprises a bottom surface and a top surface which are opposite in a first direction, and two abutting surfaces which are opposite in a second direction, the second direction is perpendicular to the first direction, each abutting surface is connected with the bottom surface and the top surface, and each hinge block is rotatably abutted with the adjacent hinge block through one or two abutting surfaces; each binding surface comprises an expanded surface and at least one bent surface, the expanded surface is connected with the bottom surface, the bent surface is connected with the top surface, and the bent surface and the expanded surface are not coplanar; the hinge is provided with an unfolding state, and in the unfolding state, the unfolding surface of each hinge block is attached to the unfolding surface of the adjacent hinge block so as to prevent the hinge blocks from being bent towards the direction far away from the direction enabling the bending surfaces to be attached. The application also provides a display device.

Description

Hinge and display device

Technical Field

The present disclosure relates to a display device, and more particularly, to a hinge and a display device using the same.

Background

With the development of display technology, a foldable screen is increasingly widely used as a product for enlarging a display surface of a device. Existing folding screen devices typically employ a flexible display panel in conjunction with a hinge to achieve folding. A common hinge is a folding hinge, a folding screen can be folded or unfolded along the hinge, and a crease exists when the folding screen is unfolded, so that the display effect is influenced. Another common hinge avoids the folding screen to produce the crease through forming the radian in the department of buckling when buckling, but this kind of hinge can't restrict the expansion direction of folding screen, takes place to turn over easily and leads to the folding screen to damage.

Disclosure of Invention

One aspect of the present application provides a hinge, comprising:

the hinge comprises a plurality of hinge blocks, a plurality of hinge blocks and a plurality of connecting pieces, wherein each hinge block comprises a bottom surface and a top surface which are opposite in a first direction, and two abutting surfaces which are opposite in a second direction, the second direction is perpendicular to the first direction, each abutting surface is connected with the bottom surface and the top surface, and each hinge block is rotatably abutted with one adjacent hinge block through one abutting surface;

each binding surface comprises an unfolded surface and at least one bent surface, the unfolded surface is connected with the bottom surface, the bent surface is connected with the top surface, and the bent surface and the unfolded surface are not coplanar;

the hinge is provided with an unfolding state, and in the unfolding state, the unfolding surface of each hinge block is attached to the unfolding surface of the adjacent hinge block so as to prevent the hinge blocks from bending towards the direction away from the direction enabling the bending surfaces to be attached.

In an embodiment, a groove is formed on one of the abutting surfaces of at least some of the hinge blocks, a protruding structure is arranged on the other abutting surface, and each protruding structure is rotatably embedded in the groove of the other adjacent hinge block.

In an embodiment, the hinge further comprises a plurality of limiting structures, each limiting structure comprises a fixing column and a binding plate, and the fixing column and the binding plate are respectively arranged on the top surfaces of two adjacent hinge blocks;

the binding plate is provided with a limiting through hole, and the fixing column penetrates through the limiting through hole and can move in the limiting through hole along the second direction.

In an embodiment, the hinge further includes a plurality of hinge bars, each hinge bar is located between two adjacent hinge blocks, and two ends of each hinge bar are respectively rotatably disposed on two adjacent hinge blocks.

In an embodiment, each hinge block has at least one of a first magnetism and a second magnetism at two ends along the second direction, and two adjacent hinge blocks are rotatably attached through the first magnetism and the second magnetism.

In an embodiment, the attaching surface of each hinge block is further provided with a magnetic material, and two adjacent hinge blocks are attached through the magnetic material.

In an embodiment, each of the hinge blocks further includes two opposite attachment surfaces facing each other in a third direction, the third direction is perpendicular to the first direction and the second direction, and the hinge blocks are arranged in an array along the second direction and the third direction, so that the hinge can be bent in the second direction or the third direction, respectively.

The hinge that this application embodiment provided through setting up a plurality of hinge blocks that include the top surface for the hinge can constitute an accommodation space by a plurality of top surfaces when buckling, avoids when the hinge is applied to display device, produces the crease on display device's flexible display panel. Through setting up the hinge and can not buckling to keeping away from the direction that the face of buckling was laminated each other under the expansion state, thereby can avoid producing when being applied to display device and turn over and roll over and lead to display device to damage.

Another aspect of the present application provides a display device, including:

a flexible display panel;

the back plate is stacked with the flexible display panel;

the hinge according to any one of the above claims, disposed between the flexible display panel and the back plate;

the back plate covers the hinge, the part of the back plate covering the hinge is flexible, and the part of the back plate not covering the hinge is rigid, so that the display device is bent through the hinge.

In one embodiment, the display panel includes a plurality of hinges arranged in parallel, and each of the hinges is independently unfolded or folded.

In one embodiment, the hinge includes a plurality of hinge blocks arranged parallel to the second direction and a plurality of hinge blocks disposed perpendicular to the second direction, so that the display device is bent in parallel to the second direction or perpendicular to the second direction by the hinge.

The display device that this application embodiment provided, through setting up above-mentioned hinge collocation flexible display panel and backplate, can realize display device's expansion and folding, include a plurality of hinges through setting up display device, can make display device include a plurality of districts of buckling to can buckle into different shapes with display device according to user's needs. The display device can be bent along different directions by arranging the hinge to comprise a plurality of hinge blocks arranged in parallel with the second direction and a plurality of hinge blocks arranged in perpendicular to the second direction, so that the display device can be set into a required shape according to the requirements of a user.

Drawings

Fig. 1 is a schematic structural diagram of a hinge according to an embodiment of the present application.

FIG. 2 is a schematic view of the engagement of a hinge block in an expanded state according to an embodiment of the present application.

FIG. 3 is a schematic view of the hinge block of an embodiment of the present application engaged in a bent state.

Fig. 4 is a side view of a stop structure in an expanded state according to an embodiment of the present application.

Fig. 5 is a top view of a restraining structure in an expanded state according to an embodiment of the present application.

Fig. 6 is a side view of a stopper structure according to an embodiment of the present application in a bent state.

Fig. 7 is a top view of a limiting structure in a bent state according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a hinge block and a hinge chain according to an embodiment of the present application.

Fig. 9 is a perspective view illustrating a hinge according to an embodiment of the present application.

FIG. 10 is a top view of a hinge according to another embodiment of the present application.

Fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present application.

Fig. 12 is a schematic view illustrating a bending state of a display device according to an embodiment of the present application.

Fig. 13 is a schematic view illustrating a display device according to another embodiment of the present application in a bent state.

Fig. 14 is a schematic view illustrating a display device according to another embodiment of the present application in a bent state.

Fig. 15 is a schematic perspective view of a display device according to an embodiment of the present application.

Description of the main elements

Hinge 100

Hinge

block

10, 10a, 10b

Bottom surface 11

Top surface 13

Adhesive surface 15

The expanding surface 151

Bending surface 153

Port 16

Raised structure 171

Recess 173

First boundary 173a

Second boundary 173b

Limiting structure 30

Fixing post 31

Binding plate 33

Limiting through hole 330

Hinge chain 50

Hinge rod 51

Hinge post 53

First bending

zones

101, 103

Second bending zone 105

Display device 200

Flexible display panel 210

Display surface 211

Protected space 220

Back plate 230

Flexible backplane 231

Rigid backplate 233

First direction X

Second direction Y

Third direction Z

Included angle alpha

First magnetism N

Second magnetism S

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

To further explain the technical means and effects of the present application for achieving the intended purpose, the following detailed description is given to the present application in conjunction with the accompanying drawings and preferred embodiments.

The embodiment of the application provides a hinge. Referring to fig. 1, a hinge 100 includes a plurality of hinge blocks 10. Each hinge block 10 includes a bottom surface 11 and a top surface 13 opposite to each other in the first direction X, and two abutting surfaces 15 opposite to each other in the second direction Y. The second direction Y is perpendicular to the first direction X. Each abutment surface 15 connects the bottom surface 11 and the top surface 13. Each hinge block 10 is rotatably attached to an adjacent hinge block 10 by an attachment surface 15.

In one embodiment, each of the attachment surfaces 15 includes an extended surface 151 and at least one bent surface 153, the extended surface 151 is connected to the bottom surface 11, the bent surface 153 is connected to the top surface 13, and the bent surface 153 is not coplanar with the extended surface 151. Specifically, the extended surface 151 and the bending surface 153 are both planar, the extended surface 151 is parallel to the first direction X, the bending surface 153 is not parallel to the first direction X and has an included angle α, the bottom surface 11 and the top surface 13 are perpendicular to the first direction X, and the bottom surface 11, the top surface 13, the extended surface 151 and the bending surface 153 are all planar. In other embodiments, the bottom surface 11 and the top surface 13 may also be curved surfaces. The extended surface 151 and the top surface 13 may include a plurality of bending surfaces 153 therebetween, and an included angle between each bending surface 153 and the first direction X gradually increases as approaching the top surface 13.

In one embodiment, the hinge 100 has an unfolded state in which the unfolded surface 151 of each hinge block 10 is attached to the unfolded surface 151 of an adjacent hinge block 10. In the unfolded state, the hinge 100 can be bent only in one direction. Specifically, when the hinge 100 is in the unfolded state, the unfolded surfaces 151 of two adjacent hinge blocks 10 are attached to each other, and at this time, the two hinge blocks 10 can only rotate in one direction, that is, in a direction that can make the bent surfaces 153 of the adjacent hinge blocks 10 approach each other. The bending direction of the hinge 100 can be limited by one or more combinations of the structure of the hinge block 10 (such as the structure in fig. 1), the additional limit structure, the additional hinge chain, and the like.

In one embodiment, the hinge 100 further has a maximum bending state in which the bending surfaces 153 of each adjacent pair of hinge blocks 10 and the top surface 13 are engaged with each other. In the maximum bending state, the hinge 100 can be bent only in one direction. I.e., in a direction that tends to approach between the developed surfaces 151 of the adjacent hinge blocks 10. The maximum bending state of the hinge 100 can also be limited by one or more combinations of the structure of the hinge block 10, the additional arrangement of the limit structure, the additional arrangement of the hinge chain and the like.

In an embodiment, an included angle α between each bending surface 153 of each hinge block 10 and the first direction X can determine an angle of rotation of two adjacent hinge blocks 10 in the bending state compared to the unfolding state, and by setting the included angles α between the bending surfaces 153 of the hinge blocks 10 and the first direction X, an angle of change of the hinge 100 in the maximum bending state compared to the unfolding state can be determined. The angle α can be set by adjusting the distance or area ratio between the bottom surface 11 and the top surface 13, or the size of the area between the unfolded surface 151 and the bending surface 153.

A method for achieving the unfolded state and the maximum bending state will be specifically described, wherein the maximum bending state of the hinge 100 is described in a case that the attachment surface 15 includes only one bending surface 153, and in other embodiments, the above method is also applicable when the attachment surface 15 includes a plurality of bending surfaces 153, and the present application is not limited thereto.

In an embodiment, referring to fig. 2 and fig. 3, a recess 173 is formed on at least one of the attachment surfaces 15 of some of the hinge blocks 10, a protruding structure 171 is disposed on the other attachment surface 15, and each protruding structure 171 is rotatably embedded in the recess 173 of another adjacent hinge block 10. Specifically, when the abutting surfaces 15 of two adjacent hinge blocks 10 abut against each other, the protruding structure 171 on one hinge block 10 is embedded in the recess 173 of the other hinge block 10, and the recess 173 includes a first boundary 173a and a second boundary 173b along the first direction X, so that the protruding structure 171 can move along the first direction X at least partially when embedded in the recess 173.

In an embodiment, referring to fig. 2, when the spreading surfaces 151 of two adjacent hinge blocks 10 are mutually attached, the protruding structure 171 of one hinge block 10 abuts against the first boundary 173a of the recess 173 of the other hinge block 10, and due to the limitation of the protruding structure 171 and the recess 173, the two adjacent hinge blocks 10 can only rotate in one direction (i.e. in a direction in which the bending surfaces 153 of the two adjacent hinge blocks 10 tend to approach), so that the spreading state is achieved.

In an embodiment, referring to fig. 3, when the bending surfaces 153 of two adjacent hinge blocks 10 are engaged with each other, the protruding structure 171 of one hinge block 10 abuts against the second boundary 173b of the recess 173 of the other hinge block 10, and at this time, due to the mutual restriction of the protruding structure 171 and the recess 173, the two adjacent hinge blocks 10 can only rotate in one direction (i.e. in a direction in which the spreading surfaces 151 of two adjacent hinge blocks 10 tend to approach each other), so that the maximum bending state is achieved.

In an embodiment, with continued reference to fig. 2 and fig. 3, in the second direction Y, a distance between the first boundary 173a and the second boundary 173b gradually increases as being away from the attachment surface 15. Specifically, the distance between the first boundary 173a and the second boundary 173b is the same as the thickness of the protruding structure 171 in the first direction X when on the attachment surface 15, thereby fixing the positions of two adjacent hinge blocks 10; when moving away from the attachment surface 15, the distance between the first boundary 173a and the second boundary 173b is greater than the thickness of the protruding structure 171, so that a portion of the protruding structure 171 can move between the first boundary 173a and the second boundary 173 b.

In one embodiment, the protruding structures 171 and the grooves 173 are disposed on the extended surface 151, and in other embodiments, the protruding structures 171 and the grooves 173 may be disposed on the bending surface 153. According to the hinge 100 provided by the embodiment of the application, the protruding structures 171 and the grooves 173 are respectively arranged on the abutting surfaces 15 of the adjacent hinge blocks 10, so that the rotatable range of the hinge 100 can be limited between the unfolding state and the maximum bending state, and meanwhile, the positions of the two adjacent hinge blocks 10 can be fixed, so that the overall stability of the hinge 100 is improved.

In an embodiment, referring to fig. 4 to 7, the hinge 100 includes a plurality of position-limiting structures 30, each position-limiting structure 30 includes a fixing post 31 and a binding plate 33, and the fixing post 31 and the binding plate 33 are respectively disposed on the top surfaces 13 of two adjacent hinge blocks 10. The binding plate 33 is further provided with a limiting through hole 330, and the fixing column 31 passes through the limiting through hole 330 and can relatively move in the limiting through hole 330 along the second direction Y. That is, the fixing column 31 and the binding plate 33 form the limiting structure 30, and the fixing column is disposed in the limiting through hole 330 on the binding plate 33, so that the relative position between the fixing column 31 and the binding plate 33 can be limited, thereby limiting the relative position between the top surfaces 13 of two adjacent hinge blocks 10, and further limiting the rotation degree between two adjacent hinge blocks 10. In other embodiments, the limiting structures 30 can also be arranged on the bottom surfaces 11 of two adjacent hinge blocks 10, or on both the bottom surfaces 11 and the top surfaces 13 of two adjacent hinge blocks 10.

In an embodiment, referring to fig. 4 and 5, when the unfolding surfaces 151 of two adjacent hinge blocks 10 are attached to each other, the fixing post 31 is located at one end of the limiting through hole 330, so that the fixing post 31 can only move in the second direction Y toward the direction close to the adjacent hinge block 10, and thus the two adjacent hinge blocks 10 can only rotate in one direction, that is, the unfolding state of the hinge 100 is achieved.

In an embodiment, referring to fig. 6 and 7, when the bending surfaces 153 of two adjacent hinge blocks 10 are attached to each other, the fixing post 31 is located at one end of the limiting through hole 330, so that the fixing post 31 can only move in the second direction Y in a direction away from the adjacent hinge blocks 10, and thus the two adjacent hinge blocks 10 can only move in one direction, that is, the maximum bending state of the hinge 100 is realized.

In an embodiment, the binding plate 33 may be made by hinging two rigid plates (not shown) with each other, so that when two adjacent hinge blocks 10 rotate relatively, the two rigid plates on the binding plate 33 also rotate relatively, and when two adjacent hinge blocks 10 are in the maximum bending state, the two rigid plates on the binding plate 33 respectively abut against the top surfaces 13 of the two hinge blocks 10, so as to cooperate with the fixing column 31 to perform the limiting function. In other embodiments, the two rigid plates on the binding plate 33 may also be rotatably joined by a flexible material or other means, so as to perform a limiting function, which is not limited in the present application.

In an embodiment, referring to fig. 8, the hinge 100 further includes a plurality of hinge chains 50, each hinge chain 50 is located between two adjacent hinge blocks 10, and two ends of each hinge chain 50 are respectively rotatably disposed on two adjacent hinge blocks 10. Specifically, the hinge strip 50 includes two hinge posts 53 and a hinge rod 51, the hinge posts 53 are respectively disposed on the ports 16 of two adjacent hinge blocks 10, the port 16 is specifically a surface of the hinge block 10, the port 16 is simultaneously connected to the bottom surface 11, the top surface 13 and the two attachment surfaces 15, and two ends of the hinge rod 51 are respectively and rotatably connected to one hinge post 53.

In one embodiment, when the unfolded surfaces 151 of two adjacent hinge blocks 10 are attached to each other, the two adjacent hinge blocks 10 can be bent only in one direction under the restriction of the hinge chain 50, thereby realizing the unfolded state of the hinge 100; similarly, when the bending surfaces 153 of two adjacent hinge blocks 10 are engaged with each other (not shown), the two adjacent hinge blocks 10 can be bent only in one direction under the restriction of the hinge chain 50, thereby achieving the maximum bending state.

In one embodiment, the hinge strip 50 is also used to fix the relative position between two adjacent hinge blocks 10, and the plurality of hinge strips 50 cooperate to facilitate the reinforcement of the hinge 100.

In an embodiment, referring to fig. 9, two ends of each hinge block 10 along the second direction Y have at least one of the first magnetism N and the second magnetism S, and two adjacent hinge blocks 10 are rotatably attached by the first magnetism N and the second magnetism S. Specifically, the hinge block 10 is made of a magnetic material such that both ends of the hinge block 10 in the second direction Y have opposite polarities, respectively, and the hinge block 10 having the first magnetism N at one end and the hinge block 10 having the second magnetism S at one end can be attracted to each other by the magnetic force. Since the two abutting surfaces 15 of each hinge block 10 are respectively located at two ends of the hinge block 10 along the second direction Y, the two abutting surfaces 15 of each hinge block 10 respectively have the first magnetism N and the second magnetism S, so that the abutting surfaces 15 of two adjacent hinge blocks 10 with different magnetism are rotatably abutted under the action of magnetic force. In other embodiments, both ends of one part of the hinge blocks 10 in the second direction Y have the first magnetism N, both ends of the other part of the hinge blocks 10 in the second direction Y have the second magnetism S, and the hinge blocks 10 with the first magnetism N and the hinge blocks 10 with the second magnetism S can attract each other under the action of the magnetic force.

In one embodiment, the abutting surface 15 of each hinge block 10 further comprises a magnetic material, and two adjacent hinge blocks 10 are abutted by the magnetic material. Specifically, two abutting surfaces 15 of each hinge block 10 may be respectively provided with a magnetic material, so that two adjacent hinge blocks 10 may attract each other under the action of magnetic force, thereby realizing rotatable abutting of the abutting surfaces 15 of two adjacent hinge blocks 10.

In an embodiment, with continued reference to fig. 9, each hinge block 10 extends in the third direction Z, and the plurality of hinge blocks 10 are arranged parallel to the third direction Z, so that the hinge 100 is bent in the second direction Y. Wherein the third direction Z is perpendicular to the first direction X and the second direction Y.

In an embodiment, referring to fig. 10, each hinge block 10 further includes two abutting surfaces 15 opposite to each other in the third direction Z, and the plurality of hinge blocks 10 are arranged in an array along the second direction Y and the third direction Z, so that the hinge blocks 10 can be bent in the second direction Y or the third direction Z, respectively. Specifically, the hinge block 10 includes two abutting surfaces 15 opposite to each other in the second direction Y and two abutting surfaces 15 opposite to each other in the third direction Z, so that the hinge block 10 can rotatably abut an adjacent hinge block 10 in either the second direction Y or the third direction Z.

In one embodiment, the hinge block 10 may include a plurality of hinge blocks 10a, and may also include a plurality of hinge blocks 10b. The lengths of the two opposite attachment surfaces 15 of the hinge block 10a in the second direction Y are equal to the lengths of the two opposite attachment surfaces 15 in the third direction Z, that is, the hinge block 10a can be approximately regarded as a structure formed by overlapping a square prism and a square frustum of a prism. The lengths of the two opposite attachment surfaces 15 of the hinge block 10b in the second direction Y are not equal to the lengths of the two opposite attachment surfaces in the third direction Z, that is, the hinge block 10b is a long-strip hinge block.

In one embodiment, the hinge 100 includes a plurality of hinge blocks 10a and a plurality of hinge blocks 10b, wherein the plurality of hinge blocks 10a are arranged in an array in the second direction Y and the third direction Z to form the second bending region 105. On the second bending region 105, the hinge 100 can be bent along the second direction Y or the third direction Z. Each hinge block 10b is attached to one hinge block 10a, and the plurality of hinge blocks 10b are arranged in parallel along the second direction Y and the third direction Z, respectively, to form

first bending regions

101 and 103. On the first bending region 101, the hinge 100 may be bent in the third direction Z; on the first bending region 103, the hinge 100 may be bent in the second direction Y. When the hinge 100 is bent in the second direction Y, rotation occurs between the plurality of hinge blocks 10b in the first bending region 101, and when the hinge 100 is bent in the third direction Z, rotation occurs between the plurality of hinge blocks 10b in the first bending region 101. In other embodiments, the

first bending regions

101 and 103 may also be formed by a plurality of hinge blocks 10a, which is not limited in this application.

The hinge 100 provided by the embodiment of the present application, by providing a plurality of hinge blocks 10 and providing the hinge blocks 10 including the unfolding surface 151 and the bending surface 153, can adjust the bending state of the hinge 100 by controlling the fitting state of each pair of adjacent hinge blocks 10. By setting the ratio or distance between the bottom surface 11 and the top surface 13 of the hinge block 10, or setting the included angle between the bending surface 153 and the first direction X, the unfolding state of the hinge 100 can be changed accordingly. The hinge 100 can have a plurality of bending directions by providing the hinge block 10 with the abutting surfaces 15 in different directions and arranging the plurality of hinge blocks 10 in different directions. By providing the hinge 100 with an unfolded state and a maximum bent state, the bending range of the hinge 100 can be limited.

Referring to fig. 11 and 12 together, the display device 200 includes: flexible display panel 210, hinge 100, and backplane 230. The flexible display panel 210 and the back plate 230 are stacked, and the hinge 100 is disposed between the flexible display panel 210 and the back plate 230. Part of the back plate 230 covers the hinge 100, and a part of the back plate 230 covering the hinge 100 is flexible, and a part of the back plate 230 not covering the hinge 100 is rigid, so that the display device 200 is bent by the hinge 100. Specifically, the hinge 100 is disposed between the flexible display panel 210 and the back panel 230, that is, the hinge 100 is disposed on a side of the flexible display panel 210 facing the back panel 230, such that the hinge 100 overlaps the display surface 211. The backplane 230 includes a flexible backplane 231 and a rigid backplane 233, the flexible backplane 231 covers the hinge 100, the rigid backplane 233 does not cover the hinge 100, and when the hinge 100 is bent, the flexible backplane 231 and the flexible display panel 210 are bent at the same time, thereby achieving bending of the display device 200.

In an embodiment, the flexible display panel 210 is close to the top surface 13 of the plurality of hinge blocks 10 in the hinge 100, the back plate 230 is close to the bottom surface 11 of the plurality of hinge blocks 10 in the hinge 100, when the display device 200 is bent, the flexible display panel 210 is located inside a bending direction, when the hinge 100 is in a maximum bending state, the plurality of hinge blocks 10 form a protection space 220 with an arc, and the flexible display panel 210 is not completely folded in half in the protection space 220, that is, the display surface 211 of the flexible display screen is not completely attached in the bending state. The size of the protection space 220 and the size of the arc may be set by setting the bending angle of the hinge 100 in the maximum bending state or adjusting the size of the top surface 13 of each hinge block 10. Constitute a guard space 220 through setting up hinge 100, can avoid flexible display panel 210 display surface 211 to laminate completely under the state of buckling, and then avoid flexible display panel 210 to produce the crease, improve display effect.

In other embodiments, the flexible display panel 210 may be further close to the bottom surface 11 of the plurality of hinge blocks 10 in the hinge 100, and the back plate 230 may be further close to the top surface 13 of the plurality of hinge blocks 10 in the hinge 100, so that when the display device 200 is bent, the flexible display panel 210 is located at the outer side of the bending direction for displaying.

In an embodiment, since the hinge 100 has the unfolded state and the maximum bending state, when the hinge 100 is applied to the display device 200, the angle range in which the display device 200 can be bent can be determined by setting the angles of the hinge 100 in the unfolded state and the maximum bending state, so as to avoid the damage of the flexible display panel 210 or the back plate 230 due to excessive bending.

In an embodiment, referring to fig. 13 and 14, the display device 200 may further include a plurality of hinges 100, that is, a plurality of hinges 100 are disposed between the flexible display panel 210 and the back plate 230 and arranged in parallel, and the hinges 100 are independently unfolded or folded.

Specifically, referring to fig. 13, the display device 200 includes two hinges 100, the top surfaces 13 of the hinge blocks 10 on each hinge 100 are close to the flexible display panel 210, that is, the bending directions of the two hinges 100 are the same, and the flexible display panel 210 is disposed inside the bending direction. By setting the bending angle of each hinge 100 in the maximum bending state, multi-layer folding of the display device 200 can be achieved.

In another embodiment, referring to fig. 14, the display device 200 includes three hinges 100, wherein the top surfaces 13 of the hinge blocks 10 on one hinge 100 are close to the back plate 230, that is, the bending directions of the three hinges 100 are different, and the curved surface display of the display device 200 can be realized by setting the bending angle of each hinge 100 in the maximum bending state.

In other embodiments, the number of hinges 100 in the display device 200 and the bending angle of each hinge 100 in the maximum bending state can be set so that the display device 200 has different shapes or bending states.

In an embodiment, referring to fig. 15, the hinge 100 includes a plurality of hinge blocks 10 arranged parallel to the second direction Y and a plurality of hinge blocks 10 arranged perpendicular to the second direction Y, so that the display device 200 is bent parallel to the second direction Y and perpendicular to the second direction Y by the hinge 100. Specifically, the hinge 100 is a structure as shown in fig. 10, that is, includes the

first bending regions

101 and 103 and the second bending region 105, so that the display device 200 can be bent in the second direction Y or in the third direction Z. In another embodiment, the hinge 100 may further include a plurality of second bending regions 105, and each second bending region 105 is connected to at least two first bending regions, so that the display device 200 may be bent in different directions or at different positions. In yet another embodiment, the hinge 100 may further include only the second bending region 105, so that the display device 200 may be bent in the second direction Y or the third direction Z at any position.

In an embodiment, elements such as a circuit board, a control chip, a battery, etc. are further included between the flexible display panel 210 and the rigid backplane 233, and are used for supplying power to the flexible display panel 210 and transmitting an electrical signal to implement a display function. The above elements may also be used to connect the flexible display panel 210 and the back panel 230, and the hinge 100 may be fixed by connecting the above elements. In other embodiments, the hinge 100 may be fixed between the flexible display panel 210 and the back plate 230 by other connectors (not shown).

In an embodiment, the display device 200 may be a mobile terminal, such as a folding screen mobile phone, and the flexible display panel 210 is an organic light emitting diode display panel. In other embodiments, the display device 200 may also be an electronic paper, the flexible display panel 210 is a flexible display panel coated with electronic ink, the back plate 230 is a carrier substrate, and the hinge 100 is used to control the bending shape of the electronic paper.

According to the display device 200 provided by the embodiment of the application, the hinge 100 having the unfolding state and the maximum bending state is arranged, so that the bending degree of the display device 200 can be controlled, and the damage to the display device 200 can be avoided. By forming the protection space 220 in the maximum bending state of the hinge 100, the flexible display panel 210 may be prevented from being creased. By providing a plurality of hinges 100 or a single hinge 100 including the second bending region 105, the bending direction and the bending degree of the display device 200 at different positions can be controlled.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not used as limitations of the present application, and that suitable modifications and changes of the above embodiments are within the scope of the claims of the present application as long as they are within the spirit and scope of the present application.

Claims

1. A hinge, comprising:

each binding surface comprises an expanded surface and at least one bent surface, the expanded surface is connected with the bottom surface, the bent surface is connected with the top surface, and the bent surface and the expanded surface are not coplanar;

the hinge is provided with an unfolding state, and in the unfolding state, the unfolding surface of each hinge block is attached to the unfolding surface of the adjacent hinge block so as to prevent the hinge blocks from being bent towards the direction far away from the direction enabling the bending surfaces to be attached; a groove is formed on one of the binding surfaces of at least part of the hinge blocks, the groove comprises a first boundary along the first direction and a second boundary which is not parallel to the first boundary, a protruding structure is arranged on the other binding surface, each protruding structure is rotatably embedded in the groove of the other adjacent hinge block under the non-unfolding state, and the bending surfaces connected with the top surface and each pair of the adjacent hinge blocks are mutually bound; the distance between the first boundary and the second boundary is greater than the thickness of the raised structure when away from the faying surface, such that the portion of the raised structure may move between the first boundary and the second boundary.

2. The hinge of claim 1, further comprising a plurality of limiting structures, each limiting structure comprising a fixing post and a binding plate, wherein the fixing post and the binding plate are respectively disposed on the top surfaces of two adjacent hinge blocks;

3. The hinge of claim 1, further comprising a plurality of hinge straps, each hinge strap being disposed between two adjacent hinge blocks, and two ends of each hinge strap being rotatably disposed on two adjacent hinge blocks, respectively.

4. The hinge of claim 1, wherein each of the hinge blocks has at least one of a first magnetic property and a second magnetic property at both ends in the second direction, and two adjacent hinge blocks are rotatably attached by the first magnetic property and the second magnetic property.

5. The hinge of claim 1, wherein the abutting surface of each hinge block is further provided with a magnetic material, and two adjacent hinge blocks are abutted by the magnetic material.

6. The hinge of claim 1, wherein each of the hinge blocks further comprises two of the abutting surfaces opposing in a third direction perpendicular to the first direction and the second direction, the hinge blocks being arranged in an array along the second direction and the third direction such that the hinge can be bent in the second direction or the third direction, respectively.

7. A display device, comprising:

a flexible display panel;

the back plate is stacked with the flexible display panel;

the hinge of any one of claims 1-6, disposed between the flexible display panel and the backplane;

8. The display device according to claim 7, wherein the display panel includes a plurality of the hinges arranged in parallel, each of the hinges being unfolded or folded independently of each other.

9. The display device according to claim 7, wherein the hinge includes a plurality of the hinge blocks aligned parallel to the second direction and a plurality of the hinge blocks disposed perpendicular to the second direction, so that the display device is bent in parallel to the second direction or perpendicular to the second direction by the hinge.