CN113048346A

CN113048346A - Supporting structure and display device

Info

Publication number: CN113048346A
Application number: CN202110385414.0A
Authority: CN
Inventors: 后红琪; 丁立薇; 廖富; 吴雨华; 朱召吉; 孙康龙
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-06-29
Anticipated expiration: 2041-04-09
Also published as: CN113048346B

Abstract

The application relates to a support structure and a display device. The support structure includes: the support frame is provided with a screen body supporting surface and comprises two support bodies and a screen body adapter, the two support bodies are mutually connected, one of the two support bodies can move relative to the other support body along a first direction, and the screen body adapter and the movable support body can relatively move along the first direction; the driving device comprises a driving component, the driving component drives one of the two supporting bodies to move relative to the other of the two supporting bodies, and the driving component drives the screen body adapter piece and the moving supporting body to move along the same direction; wherein the driving assembly drives one of the two supports to move relative to the other at a first speed V1, and the driving assembly drives the screen adapter to move relative to the other at a second speed V2, wherein V2 > V1. The supporting structure of this application can be used for changing display area size, satisfies people daily demand.

Description

Supporting structure and display device

Technical Field

The application relates to the technical field of display, in particular to a supporting structural part and display equipment.

Background

With the development of science and technology, mobile terminal equipment is widely applied and becomes one of basic articles in human life. The mobile terminal device undergoes a development process from a small screen to a large screen. But the screen of the mobile terminal device is fixed. However, when people deal with different tasks, such as conversation, game entertainment, or processing documents, there are often different requirements for the size of the display screen, and therefore, mobile terminal devices that cannot change the size of the display area of the screen cannot well meet the daily requirements of people.

Disclosure of Invention

The application provides a supporting structure spare and display device can change the display area size, satisfies people daily demand.

In one aspect, the present application provides a support structure for a display device, comprising:

the support frame is provided with a screen body supporting surface and comprises two support bodies and a screen body adapter, the two support bodies are mutually connected, one of the two support bodies can move relative to the other support body along a first direction, and the screen body adapter and the movable support body can relatively move along the first direction;

the driving device comprises a driving component, the driving component drives one of the two supporting bodies to move relative to the other supporting body, and the driving component drives the screen body adapter to move so that the screen body adapter and the movable supporting body move along the same direction;

wherein the driving assembly drives one of the two supports to move relative to the other at a first speed V1, and the driving assembly drives the screen adapter to move relative to the other at a second speed V2, wherein V2 > V1.

According to an embodiment of the application, the drive assembly comprises a first transmission mechanism, a linkage mechanism, a second transmission mechanism and a driver, wherein the linkage mechanism is connected with the first transmission mechanism and the second transmission mechanism, the driver drives one of the two supporting bodies to move relative to the other supporting body through the first transmission mechanism, and the driver drives the screen body adapter to move relative to the other supporting body through the first transmission mechanism, the linkage mechanism and the second transmission mechanism.

According to one embodiment of the present application, V2-2V 1.

According to one embodiment of the application, the driving device is detachably connected with the support frame, and the driving device is externally arranged on the support frame.

According to one embodiment of the application, the first transmission mechanism comprises a transmission member and a first connecting member, the first connecting member is movably connected to the transmission member along a first direction, one of the two supporting bodies is connected to the first connecting member, and the driver drives the first connecting member and the supporting body connected with the first connecting member to move through the transmission member.

According to an embodiment of the application, the second transmission mechanism comprises a guide rail and a second connecting piece, the guide rail extends along the first direction and is connected to the first transmission mechanism, the second connecting piece is movably connected to the guide rail, and the screen body adapter piece and the linkage mechanism are respectively connected to the second connecting piece.

According to an embodiment of the application, the transmission member is a threaded rod, and the driver drives the threaded rod to rotate so as to drive the first connecting member and the supporting body connected with the first connecting member to move.

According to an embodiment of the application, the linkage mechanism comprises a gear, a first rack and a second rack, the gear is rotatably connected to the first transmission mechanism, the first rack is connected to the second connecting piece, and when the first transmission mechanism drives the gear to rotate relative to the second rack, the gear drives the first rack and the second connecting piece to move synchronously.

According to an embodiment of the application, the second transmission mechanism further comprises a tensioning mechanism, the screen body adapter is connected with the tensioning mechanism, and the tensioning mechanism is used for tensioning the flexible screen to be connected on the screen body adapter.

According to an embodiment of the application, the tensioning mechanism comprises a third connecting piece and an elastic piece, the third connecting piece is movably connected to the second connecting piece along the first direction, the screen body adapter piece is connected to the third connecting piece, and the elastic piece can apply pushing force along the first direction to the third connecting piece to tension the flexible screen.

According to one embodiment of the application, the resilient member is in a state of maximum compression.

According to one embodiment of the application, the elastic member is a coil spring or a rubber member.

According to an embodiment of the application, the tensioning mechanism further comprises a fourth connecting member movably connected to the second connecting member along the first direction, the third connecting member is connected to the fourth connecting member, and the elastic member is disposed between the second connecting member and the fourth connecting member.

According to an embodiment of the application, the second connecting piece has a recess, at least part of the fourth connecting piece and at least part of the elastic piece are accommodated in the recess, and the elastic piece is pressed against the side wall of the recess.

According to an embodiment of the application, the driving device further comprises a housing having a bar-shaped hole extending in the first direction, one of the two supporting bodies passes through the bar-shaped hole and is connected with the housing, the driving assembly is disposed within the housing, and the other of the two supporting bodies passes through the bar-shaped hole and is connected with the driving assembly.

The supporting structure of this application embodiment can be used to provide the installation basis for flexible screen. After the supporting structural member and the flexible screen are assembled, the display equipment with the size of the display area of the flexible screen being adjustable and changeable can be formed. The driving assembly of the driving device can respectively drive the movable supporting body and the screen body adapter piece so as to enable the movable supporting body and the screen body adapter piece to move along the first direction in the same direction. The flexible screen can be unfolded or folded when the movable support body moves relative to the other support body. Therefore, the display device in the embodiment of the application can freely adjust the display area of the flexible screen of the display device through the driving device, so that different requirements of a user on the size of the display area of the screen under different use scenes are met, and the satisfaction degree of user experience is improved. The driving assembly drives the movable support body to move at a first speed V1 relative to the non-movable support body, and drives the screen body adapter to move at a second speed V2 relative to the non-movable support body, wherein V2 is greater than V1, so that when the flexible screen is unfolded, the screen body adapter cannot pull the flexible screen to cause the flexible screen to bear large tensile stress and break, and when the flexible screen is folded, the screen body adapter can drive the flexible screen to be rapidly folded, and the possibility that the flexible screen is folded due to the fact that the folding speed is slow is reduced.

In another aspect, the present application provides a display apparatus, including:

the flexible screen comprises a fixed end and a movable end;

according to the supporting structure member of the above embodiment, the screen body supporting surface is used for supporting the flexible screen, the fixed end is connected to one of the two supporting bodies, the movable end is bent and arranged on one side, away from the screen body supporting surface, of the other one of the two supporting bodies, and is connected to the screen body adapter, the driving assembly drives the movable supporting body to move, and when the screen body adapter and the movable supporting body move in the same direction along the first direction, the area of the flexible screen on the screen body supporting surface is increased or reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any creative effort.

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

FIG. 2 is a schematic structural diagram illustrating a display device and a driving device in a separated state according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a partially exploded structure of a display device according to an embodiment of the present application;

FIG. 4 is an exploded view of a display device according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a driving device according to an embodiment of the present application;

fig. 6 is an exploded view of the driving device of the embodiment shown in fig. 5.

In the drawings, the drawings are not necessarily drawn to scale.

Description of the labeling:

1. a display device;

10. a display device; 11. a support frame; 11a, a support body; 113. a screen body fixing member; 114. a first base plate; 115. a second base plate; 116. a roller; 12. a screen body adapter; 13. a flexible screen; 13a, a fixed end; 13b, a mobile terminal;

20. a drive device; 20a, a driving component; 20b, a housing; 21. a first transmission mechanism; 211. a transmission member; 212. a first connecting member; 22. a linkage mechanism; 221. a gear; 222. a first rack; 223. a second rack; 23. a second transmission mechanism; 231. a guide rail; 232. a second connecting member; 2321. a recess; 233. a tensioning mechanism; 2331. a third connecting member; 2332. an elastic member; 2333. a fourth connecting member; 24. a driver; 25. a base;

x, a first direction; y, a second direction; z, third direction.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the application and are not intended to limit the scope of the application, i.e., the application is not limited to the described embodiments.

In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. "vertical" is not strictly vertical, but is within the tolerance of the error. "parallel" is not strictly parallel but within the tolerance of the error.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The following description is given with the directional terms as they are used in the drawings and not intended to limit the specific structure of the present application. In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood as appropriate by one of ordinary skill in the art.

For a better understanding of the present application, embodiments of the present application are described below with reference to fig. 1 to 6.

Referring to fig. 1 and 2, an embodiment of the present application provides a display device 1. The display apparatus 1 includes a display device 10 and a driving device 20 which are separately provided. The display device 10 is used to display an image. The driving device 20 is used for driving the display device 10 to change the display area of the display device 10, so that the display area of the display device 10 is increased or decreased. The driving device 20 is external to the display device 10, i.e. the driving device 20 is located outside the display device 10. The driving device 20 is positioned below the display device 10 such that the driving device 20 can hold the display device 10. The driving device 20 is detachably connected to the display device 10, so that the display device 10 and the driving device 20 can be assembled after being independently processed and manufactured.

The display device 10 of the present embodiment includes a support structure and a flexible screen 13.

The support structure of the embodiment of the present application includes a support frame 11 and a driving device 20. The driving device 20 may be disposed on a side of the supporting frame 11 facing away from the screen supporting surface, that is, the driving device 20 is disposed on an inner surface side of the supporting frame 11. The driving device 20 is located inside the supporting frame 11. Alternatively, the driving device 20 may be disposed outside the supporting frame 11, i.e. the driving device 20 is disposed outside the supporting frame 11.

Referring to fig. 3 and 4, the supporting frame 11 includes two supporting bodies 11 a. One of the two supports 11a is movable relative to the other in a first direction X. The screen adapter 12 is displaced relative to the movable support 11a and the screen adapter 12 can be moved in the first direction X. The flexible screen 13 includes a fixed end 13a and a movable end 13b disposed opposite to each other. The fixed end 13a of the flexible screen 13 is connected to the immovable one of the two supporting bodies 11a, and the other end is bent and arranged on the side of the movable one of the two supporting bodies 11a far away from the supporting surface of the screen body. The screen adapter 12 is connected to a drive assembly which drives the displaceable support 11 a. The driving assembly 20a drives the supporting body 11a to move, and when the driving assembly 20a drives the movable supporting body 11a to move and the screen adapter 12 moves along the first direction X in the same direction as the movable supporting body 11a, the area of the flexible screen 13 on the supporting surface of the screen is increased or decreased, so that the display area of the display device 10 is increased or decreased. The driving device 20 of the embodiment of the present application includes a driving assembly 20 a. The display device 10 is connected to the drive assembly 20a via the movable support 11a and the screen adapter 12. The driving assembly 20a drives the movable supporting body 11a and the screen adapter 12 to move in the same direction along the first direction X, so that the movable supporting body 11a moves relative to the other supporting body 11a, and the flexible screen 13 is unfolded or folded.

When the movable support 11a is subjected to an external force, the movable support 11a can move in the first direction X. After the flexible screen 13 is mounted on the supporting frame 11, the driving assembly 20a drives the movable supporting member 11a to extend relative to the other supporting member 11a, and when the movable supporting member 11a and the screen adapter 12 move in the same direction along the first direction X, the flexible screen 13 is unfolded, so that the display area of the display device 10 is correspondingly increased. When the driving assembly 20a drives the movable supporting body 11a to retract relative to the other supporting body 11a, and the movable supporting body 11a and the screen body adapter 12 move in the same direction along the first direction X, the flexible screen 13 is folded, so that the display area of the display device 10 is correspondingly reduced.

The support frame 11 has a screen support surface and an inner surface. The screen body supporting surface and the inner surface are arranged in a back-to-back mode. The screen body supporting surface is used for supporting the flexible screen 13, and the flatness of the flexible screen 13 is guaranteed. Illustratively, the screen body supporting surface may be a surface facing the user when the user uses the display device 1.

The screen body adapter 12 is used for connecting and fixing the movable end 13b of the flexible screen 13. A portion of the screen adapter 12 is disposed in the support frame 11. The movable end 13b of the flexible screen 13 is bent toward the inside of the support frame 11 and connected to a region of the screen adapter 12 located inside the support frame 11. The panel adaptor 12 and the supporting body 11a connected to the fixed end 13a of the flexible panel 11 can collectively stretch the flexible panel 13 to maintain the flatness of the flexible panel 13. A portion of the screen adapter 12 is located outside the support frame 11. The screen adapter 12 is located outside the support frame 11 for connecting the driving assembly 20 a. Illustratively, the screen adapter 12 may be an adapter plate.

The support structure of the embodiment of the application can be used for providing an installation foundation for the flexible screen 13. After the supporting structural member 10 and the flexible screen 13 are assembled, a display device with the size of the screen display area of the flexible screen 13 being adjustable can be formed. The drive assembly 20a of the drive device 20 is capable of driving the movable support 11a and the screen adapter 12, respectively, so that the movable support 11a and the screen adapter 12 move in the same direction X. The flexible screen 13 is unfolded or folded when the movable support 11a moves relative to the other support 11 a. Therefore, the display device 1 in the embodiment of the present application can freely adjust the size of the display area of the flexible screen 13 of the display apparatus 10 through the driving apparatus 20, so as to meet different requirements of a user on the size of the display area of the screen in different use scenes, and improve the satisfaction degree of the user experience. The driving assembly 20a drives the movable support 11a to move at a first speed V1, and the driving assembly 20a drives the screen adapter 12 to move at a second speed V2 relative to the non-movable support, where V2 is greater than V1, so that when the flexible screen 13 is unfolded, the screen adapter 12 does not pull the flexible screen 13 to cause the flexible screen 13 to bear a large tensile stress and break, and when the flexible screen 13 is folded, the screen adapter 12 can drive the flexible screen 13 to fold rapidly, thereby reducing the possibility of the flexible screen 13 folding due to slow folding speed.

In some embodiments, V2-2V 1.

It can be understood that, when the movable support 11a extends out of the other support 11a by the first distance L1 in the first direction at the same time, the movement distance of the screen adapter 12 relative to the other support 11a is 2L1, that is, the total movement distance of the first end and the second end of the flexible screen 13 is 2L1, so that the flexible screen 13 can be synchronously unfolded or retracted along with the expansion and contraction of the support frame 11, and the phenomenon of tearing or folding of the flexible screen 13 is avoided.

In some embodiments, referring to fig. 1 and 2, the driving device 20 is detachably connected to the supporting frame 11, and the driving device 20 is externally disposed on the supporting frame 11. The support frame 11 and the driving device 20 are designed separately, so that on one hand, the driving component 20a is externally arranged on the support frame 11, and does not occupy the internal space of the support frame 11, so that the structural design of the support frame 11 can be more compact, lighter and thinner; on the other hand, the battery for providing electric energy for the flexible screen 13 and the driving device 20 or the circuit board connected with the flexible screen 13 and the driving device 20 can be arranged outside the supporting frame 11, so that the internal space of the supporting frame 11 is not occupied, the structural compactness of the supporting frame 11 can be further improved, and meanwhile, the battery with larger capacity can be used conveniently to improve the endurance time of the display device 1.

In some embodiments, one of the two supporting bodies 11a may be connected to the mounting platform to fix its position, so that the supporting body 11a connected to the mounting platform may maintain the position when the driving device 20 drives the movable supporting body 11a to move telescopically.

In some embodiments, the support frame 11 further comprises a screen mount 113. The panel holder 113 is attached to the support 11a which does not move. The screen fixing member 113 and the support 11a which does not move can fix the end of the flexible screen 13 together, so that the connection stability of the flexible screen 13 is ensured, and the possibility of wrinkles of the flexible screen 13 is reduced. Illustratively, the screen mount 113 is a fixed frame.

In some embodiments, referring to fig. 4, the support frame 11 further comprises a first base plate 114 and a second base plate 115. The first base plate 114 is connected to the support 11a which does not move. The second base plate 115 is connected to the movable support 11 a. A portion of the screen adapter 12 is accommodated between the second base plate 115 and the movable support 11 a.

In some embodiments, the support frame 11 further comprises rollers 116. The roller 116 is used to support the flexible screen 13. The roller 116 is disposed at an end of the movable support 11a away from the immovable support 11a along the first direction X. The opposite ends of the roller 116 are rotatably connected to the movable support 11 a. A portion of the flexible screen 13 is bent and brought into abutment with the roller 116. The flexible screen 13 can be connected to the screen adapter 12 by moving the end 13b around the roller 116. The roller 116 rolls when the flexible screen 13 is unfolded or folded. The roller 116 can reduce the resistance of the flexible screen 13 during the extending or retracting process, and can also reduce the possibility of friction damage of the flexible screen 13 in direct contact with the movable support 11 a.

In some embodiments, referring to fig. 5 and 6, the drive assembly 20a includes a first transmission mechanism 21, a linkage mechanism 22, a second transmission mechanism 23, and a driver 24. The linkage 22 connects the first transmission mechanism 21 and the second transmission mechanism 23. The driver 24 drives the movable support 11a to move relative to the other support 11a via the first transmission mechanism 21, and the driver 24 drives the screen adapter 12 to move relative to the movable support 11a via the first transmission mechanism 21, the linkage mechanism 22 and the second transmission mechanism 23.

When the first transmission mechanism 21 receives the power of the driver 24, the first transmission mechanism 21 starts to operate. Meanwhile, the first transmission mechanism 21 can transmit power to the second transmission mechanism 23 through the linkage mechanism 22, so that when the first transmission mechanism 21 operates, the linkage mechanism 22 and the second transmission mechanism 23 are also in an operating state. Therefore, the driving assembly 20a can drive the movable support 11a to move along the first direction X through the first transmission mechanism 21, and can simultaneously drive the screen adapter 12 to move along the first direction X relative to the movable support 11a through the first transmission mechanism 21, the linkage mechanism 22 and the second transmission mechanism 23, so that the movable support 11a and the screen adapter 12 can move along the first direction X in the same direction, which is beneficial to improving the motion synchronism of the movable support 11a and the screen adapter 12, and reducing the possibility that the flexible screen 13 bears large tensile force or impact force due to the motion lag of one of the screen adapter 12 and the movable support 11a relative to the other, thereby causing structural damage.

In some embodiments, the first transmission mechanism 21 includes a transmission member 211 and a first connection member 212. The first connecting member 212 is movably connected to the transmission member 211 along the first direction X. The movable support 11a is connected to the first connector 212. The driver 24 drives the first connecting member 212 and the movable supporting body 11a to move through the transmission member 211. In some examples, the driver 24 drives the transmission member 211 to rotate, and the transmission member 211 converts the rotation into a linear motion to drive the first connection member 212. Illustratively, the movable support 11a is coupled to the first coupling member 212 by a fastener. The driver 24 may be a servo motor or a stepper motor.

In some examples, transmission 211 extends in first direction X. The transmission 211 may be a threaded rod. First connecting element 212 is screwed to transmission element 211. Illustratively, when the driver 24 drives the threaded rod to rotate clockwise, the first link 212 and the movable support 11a move in the first direction X and away from the other support 11 a. When the actuator 24 drives the threaded rod to rotate counterclockwise, the first link 212 and the movable support 11a move in the first direction X and move closer to the other support 11 a.

The threaded rod rotation transmission mode is beneficial to improving the movement stability of the movable supporting body 11a, and the possibility that the movable supporting body 11a generates instantaneous impact force on the flexible screen 13 due to impact in the moving process is reduced, so that the possibility that the flexible screen 13 is torn due to the instantaneous impact force is reduced.

In some examples, the drive assembly 20a further includes a base 25. Drive 24 and transmission member 211 may be coupled to base 25. For example, the two ends of the transmission member 211 may be rotatably connected to the base 25 by rolling bearings or sliding bearings. For example, the immovable support 11a may be connected and fixed to the base 25.

In some embodiments, the second transmission mechanism 23 includes a guide rail 231 and a second link 232. The guide rail 231 extends in the first direction X and is connected to the first transmission mechanism 21. The second connector 232 is movably connected to the guide rail 231. The screen adapter 12 and the linkage 22 are connected to the second connecting member 232, respectively. The first transmission mechanism 21 can transmit power to the linkage mechanism 22, and then transmit the power to the second connection member 232 through the linkage mechanism 22, so that the second connection member 232 moves along the first direction X relative to the guide rail 231, and the second connection member 232 can drive the screen adapter 12 to move along the first direction X. Therefore, when the first transmission mechanism 21 drives the movable supporting body 11a to move along the first direction X, the linking mechanism 22 and the second transmission mechanism 23 can drive the screen body adaptor 12 and the movable supporting body 11a to move along the same direction X, so as to unfold or fold the flexible screen 13.

Exemplarily, the guide rail 231 and the second connector 232 are respectively disposed on a side of the first connector 212 facing away from the transmission member 211. The transmission member 211, the first connection member 212, the guide rail 231, and the second connection member 232 are stacked in the third direction Z. The first direction X, the second direction Y and the third direction Z are perpendicular to each other. The guide rail 231 is detachably connected to the first connector 212 of the first transmission mechanism 21. When the driver 24 drives the first connecting member 212 to move, the guide rail 231 and the first connecting member 212 can move along the first direction X simultaneously, and simultaneously the driver 24 drives the second connecting member 232 to move along the first direction X relative to the guide rail 231.

Illustratively, the second connector 232 is slidably coupled to the rail 231.

Illustratively, the portion of the panel adapter 12 located outside the support frame 11 is detachably connected to the second connector 232.

In some embodiments, the linkage 22 includes a gear 221, a first rack 222, and a second rack 223. The gear 221 is rotatably connected to the first transmission mechanism 21. The first rack 222 is connected to the second connector 232. When the first transmission mechanism 21 drives the gear 221 to rotate relative to the second rack 223, the gear 221 can drive the first rack 222 and the second connecting member 232 to move synchronously. The gear 221, the first rack 222 and the second rack 223 realize linkage of the first transmission mechanism 21 and the second transmission mechanism 23, stability of a power transmission process can be guaranteed, and therefore the possibility that the flexible screen 13 is accidentally damaged due to bad impact on the flexible screen 13 caused by the movable supporting body 11a or the screen body adapter 12 can be reduced.

The second rack 223 may be connected to other structural members to fix its position, so that the position of the second rack 223 may be maintained constant while the gear 221 rotates. Illustratively, the second rack 223 may be provided to the base 25. When the first connecting member 212 of the first transmission mechanism 21 moves along the first direction X, the first connecting member 212 drives the gear 221 to rotate relative to the second rack 223, so that the gear 221 drives the first rack 222 and the second connecting member 232 connected to the first rack 222 to move along the first direction X simultaneously.

In some examples, gear 221 is rotatably coupled to first coupling member 212 via a bearing. The rotation axis of the gear 221 is perpendicular to the first direction X and the second direction Y. The first and

second racks

222 and 223 are spaced apart in the second direction Y. The gear 221 is located between the first rack 222 and the second rack 223.

In the embodiment of the present application, since the gear 221 is rotatably connected to the first connector 212 through a bearing, the first rack 222 is connected to the second connector 232, and the second rack 223 can be connected to other structural members to fix the position thereof. The driving assembly 20a drives the movable supporting body and the first connecting member 212 to move at the first speed V1, and drives the gear 221 connected to the first connecting member 212 to move at the first speed V1; the drive assembly 20a drives the screen adapter 12 to move relative to the movable support at a first rate V1 while driving the screen adapter 12 to move relative to the non-movable support at a second rate V2, where V2 is 2V 1. That is, the driving assembly 20a drives the second link 232 to move at the first velocity V1 relative to the movable support, while driving the second link 232 to move at the second velocity V2 relative to the non-movable support, so that the first rack 222 is displaced at the first velocity V1 relative to the gear 221, and at the second velocity V2 relative to the fixed second rack 223 and the non-movable support. Therefore, when the flexible screen 13 is unfolded, the screen body adapter piece 12 cannot pull the flexible screen 13 to cause the flexible screen 13 to bear large tensile stress and break, and when the flexible screen 13 is folded, the screen body adapter piece 12 can drive the flexible screen 13 to be rapidly folded, so that the possibility that the flexible screen 13 folds due to slow folding speed is reduced. In some embodiments, the second transmission 23 further comprises a tensioning mechanism 233. The screen adapter 12 is connected to a tensioning device 233. The tensioning mechanism 233 is used to tension the flexible screen 13 attached to the screen adapter 12. The tensioning mechanism 233 can finely adjust the tensioning force of the flexible screen 13 through the screen adapter 12, so as to further ensure that the flexible screen 13 keeps a tensioned and flat state in the unfolding or folding process, improve the display effect of the flexible screen 13, and reduce the possibility of wrinkles of the flexible screen 13.

In addition, the tension mechanism 233 can always apply a pushing force in the first direction X to the screen adaptor 12. This pushing force is always directed towards the immovable support 11 a. This thrust can keep invariable or fluctuation of the small circle, therefore the flexible screen 13 of connecting on the screen body adaptor 12 expand or the in-process that draws in, straining device 233 can be favorable to guaranteeing that flexible screen 13 self atress size does not basically change, guarantees the roughness of flexible screen 13, and flexible screen 13 is difficult for bearing great tensile force or unstable impact force simultaneously, is favorable to reducing flexible screen 13 and receives great tensile force or unstable impact force and the emergence shows the possibility unusual or self crackle.

In some embodiments, as shown in fig. 6, the tensioning mechanism 233 includes a third connecting member 2331 and a resilient member 2332. The third connecting member 2331 is movably connected to the second connecting member 232 in the first direction X, and the screen adapter 12 is connected to the third connecting member 2331. The elastic member 2332 can apply a pushing force in the first direction X to the third connecting member 2331, so that the third connecting member 2331 brings the screen adapter 12 to tension the flexible screen 13. Illustratively, the third connector 2331 is slidably connected to the second connector 232 along the first direction X. The elastic member 2332 is positioned between the second connecting member 232 and the third connecting member 2331 in the first direction X.

After the flexible screen 13 is connected to the screen body adapter 12, the second connecting member 232 and the third connecting member 2331 may co-press the elastic member 2332 in the first direction X, so that the elastic member 2332 in the compressed state may apply a pushing force in the first direction X to the third connecting member 2331. This pushing force is always directed towards the immovable support 11 a. In some examples, when the flexible screen 13 is unfolded or folded, the second connecting member 232 can move the third connecting member 2331, and the flexible screen 13 pulls the third connecting member 2331, so that the relative position of the second connecting member 232 and the third connecting member 2331 can be maintained, so that the elastic member 2332 is always in a compressed state, and the pushing force applied by the elastic member 2332 to the third connecting member 2331 can be a constant force. Therefore, in the process of unfolding and folding the flexible screen 13, the tensile force borne by the flexible screen 13 can be kept unchanged, which is beneficial to reducing the possibility that the flexible screen 13 is abnormal in display or cracks occur in the structure of the flexible screen due to large tensile force or unstable impact force.

In some examples, the resilient member 2332 is at a maximum compression, such that the pushing force applied by the resilient member 2332 to the third connecting member 2331 is always kept at a maximum value, which is advantageous to reduce the possibility of fluctuations in the magnitude of the pushing force.

In some examples, the resilient member 2332 is a coil spring or rubber member.

In some embodiments, tensioning mechanism 233 further includes a fourth link 2333. The fourth connecting member 2333 is movably connected to the second connecting member 232 in the first direction X, and the third connecting member 2331 is connected to the fourth connecting member 2333. The elastic member 2332 is disposed between the second connecting member 232 and the fourth connecting member 2333. The fourth link 2333 is slidably connected to the second link 232. The elastic member 2332 is positioned at one side of the fourth connecting member 2333 in the first direction X.

In some embodiments, the second connector 232 has a recess 2321. At least part of the fourth connecting member 2333 and at least part of the elastic member 2332 are received in the recess 2321. The resilient member 2332 presses against the sidewall of the recess 2321. In the third direction Z, a surface of the second connection member 232 facing away from the guide rail 231 is recessed downward to form a recess 2321. The third connecting member 2331 may cover the opening of the recess 2321, thereby covering the fourth connecting member 2333 and the elastic member 2332. The third connecting member 2331 may form a constraint on the fourth connecting member 2333 and the elastic member 2332, so as to reduce the possibility that the positions of the fourth connecting member 2333 and the elastic member 2332 are shifted to cause the second connecting member 232 and the third connecting member 2331 to not normally move relatively. The fourth connecting member 2333 and the elastic member 2332 are not easily removed from the recess 2321, thereby improving the long-term reliability and stability of the fourth connecting member 2333 and the elastic member 2332.

In some embodiments, the drive device 20 further includes a housing 20 b. The cover 20b has a strip-shaped hole extending in the first direction X. The immovable support 11a passes through the strip-shaped hole and is connected with the cover 20 b. The drive assembly 20a is disposed within the housing 20 b. The movable support 11a and the screen adapter 12 pass through the strip-shaped opening and are connected to the drive assembly 20 a. The flexible screen 13 of the display device 10 is exposed to the cover 20 b. The cover 20b can protect the driving assembly 20a, reduce the possibility that the driving assembly 20a is damaged or cannot normally operate due to the fact that external impurities enter the driving assembly 20a, improve the aesthetic property of the driving device 20 and be beneficial to improving the satisfaction degree of users.

In some examples, the length of the strip-shaped hole extending along the first direction X is greater than or equal to the dimension of the support frame 11 along the first direction X when the support frame is in the unfolded state.

In some examples, the cover 20b includes a bottom case and a cover. The cover body can cover the bottom shell. The strip-shaped hole is arranged on the cover body. The driving assembly 20a is disposed in the bottom case. One of the two supporting bodies 11a may be connected to a connection post fixed in the bottom case, thereby fixing its position without being moved. The second rack 223 of the linkage 22 may be fixedly coupled to the bottom case.

In some examples, a battery for supplying power to the display device 10 and the driving device 20 or a circuit board connected to the display device 10 and the driving device 20 is disposed in the housing 20b, so that the display device 10 and the battery, and the display device 10 and the circuit board are separately designed, which is beneficial to implementing the lightness and thinness of the display device 10, and simultaneously, the use of a large-capacity battery is facilitated, and the overall endurance time of the display apparatus 1 is increased.

In some embodiments, the driving device 20 is detachably connected to the supporting frame 11, and the driving device 20 is disposed in the supporting frame 11, i.e. the driving device 20 is disposed in the supporting frame 11. The drive means 20 are not visible from outside the display device 1. The driving assembly 20a of the driving device 20 may be disposed on the immovable support 11a of the two supports 11a to drive the other of the two supports 11a to move. Illustratively, the driving assembly 20a may be the driving assembly 20a in the above-described embodiments.

In some embodiments, the drive assembly 20a includes a base 25. The base 25 is provided on the immovable support 11a of the two supports 11 a. The driver 24 and the first transmission mechanism 21 may be connected to a base 25. The linkage 22 connects the first transmission mechanism 21 and the second transmission mechanism 23. The driver 24 drives the movable support 11a to move relative to the other support 11a via the first transmission mechanism 21, and the driver 24 drives the screen adapter 12 to move relative to the movable support 11a via the first transmission mechanism 21, the linkage mechanism 22 and the second transmission mechanism 23. Illustratively, the first transmission mechanism 21, the second transmission mechanism 23, and the linkage mechanism 22 may be the first transmission mechanism 21, the second transmission mechanism 23, and the linkage mechanism 22, respectively, in the above-described embodiments. In embodiments where the linkage 22 includes a gear 221, a first rack 222 and a second rack 223, the second rack 223 may be disposed on the base 25 or the immovable support 11 a.

While the present application has been described with reference to preferred embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the present application, and in particular, features shown in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims

1. A support structure for a display device, the support structure comprising:

the support frame is provided with a screen body supporting surface and comprises two support bodies and a screen body adapter, the two support bodies are mutually connected, one of the two support bodies can move relative to the other support body along a first direction, and the screen body adapter and the movable support body can relatively displace along the first direction;

the driving device comprises a driving component, the driving component drives one of the two supporting bodies to move relative to the other supporting body, and the driving component drives the screen adapter to move so that the screen adapter and the movable supporting body move along the same direction;

wherein the drive assembly drives one of the two supports to move relative to the other at a first rate V1, and the drive assembly drives the panel adapter to move relative to the other at a second rate V2, wherein V2 > V1.

2. The support structure of claim 1, wherein the drive assembly comprises a first transmission mechanism, a linkage mechanism, a second transmission mechanism, and a driver, the linkage mechanism connects the first transmission mechanism and the second transmission mechanism, the driver drives one of the two support bodies to move relative to the other through the first transmission mechanism, and the driver drives the screen adapter to move through the first transmission mechanism, the linkage mechanism, and the second transmission mechanism;

preferably, V2 ═ 2V 1;

preferably, the driving device is detachably connected with the support frame, and the driving device is externally arranged on the support frame.

3. The supporting structure as claimed in claim 2, wherein the first transmission mechanism comprises a transmission member and a first connecting member, the first connecting member is movably connected to the transmission member along the first direction, one of the two supporting bodies is connected to the first connecting member, and the driver drives the first connecting member and the supporting body connected to the first connecting member to move through the transmission member;

preferably, the second transmission mechanism includes a guide rail and a second connecting member, the guide rail extends along the first direction and is connected to the first transmission mechanism, the second connecting member is movably connected to the guide rail, and the screen adapter and the linkage mechanism are respectively connected to the second connecting member;

preferably, the transmission part is a threaded rod, and the driver drives the threaded rod to rotate so as to drive the first connecting piece and the support body connected with the first connecting piece to move.

4. The support structure according to claim 3, wherein the linkage mechanism comprises a gear, a first rack and a second rack, the gear is rotatably connected to the first transmission mechanism, the first rack is connected to the second connection member, and when the first transmission mechanism drives the gear to rotate relative to the second rack, the gear drives the first rack and the second connection member to move synchronously.

5. The support structure of claim 3, wherein the second transmission mechanism further comprises a tensioning mechanism, the screen adapter is connected with the tensioning mechanism, and the tensioning mechanism is used for tensioning a flexible screen to be connected on the screen adapter.

6. The support structure of claim 5, wherein the tensioning mechanism comprises a third connector movably connected to the second connector in the first direction and an elastic member connected to the screen body adaptor, the elastic member being capable of applying a pushing force to the third connector in the first direction to tension the flexible screen, the pushing force being directed towards the support body which is not moving;

preferably, the elastic member is in a maximum compressed state;

preferably, the elastic member is a coil spring or a rubber member.

7. The support structure of claim 6, wherein the tensioning mechanism further comprises a fourth connector movably connected to the second connector in the first direction, the third connector connected to the fourth connector, and the resilient member disposed between the second connector and the fourth connector.

8. The support structure of claim 7, wherein the second connector has a recess, at least part of the fourth connector and at least part of the spring member being received in the recess, the spring member bearing against a side wall of the recess.

9. The support structure according to claim 1, characterized in that said driving means further comprise a casing having a strip-shaped hole extending along said first direction, one of said two supporting bodies passing through said strip-shaped hole and being connected with said casing, said driving assembly being arranged inside said casing, the other of said two supporting bodies and said screen adapter passing through said strip-shaped hole and being connected with said driving assembly.

10. A display device, comprising:

the flexible screen comprises a fixed end and a movable end;

the support structure as claimed in any one of claims 1 to 9, wherein the screen support surface is configured to support the flexible screen, the fixed end is connected to one of the two support bodies, the movable end is bent and disposed at a side of the other of the two support bodies away from the screen support surface, and is connected to the screen adaptor, and the driving assembly drives the movable support body to move and the screen adaptor and the movable support body move along the same direction so as to increase or decrease an area of the flexible screen on the screen support surface.