CN114446175A

CN114446175A - Flexible screen supporting device and flexible display device

Info

Publication number: CN114446175A
Application number: CN202210129691.XA
Authority: CN
Inventors: 赵丽娟; 朱红
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-05-06

Abstract

The application relates to a flexible screen supporting device and a flexible display device, and belongs to the technical field of flexible screens. The flexible screen support device includes: a housing; the two supporting pieces can be arranged on the shell in a reciprocating sliding mode, each supporting piece comprises a sliding scroll shaft used for winding the flexible screen, the sliding scroll shafts of the two supporting pieces are respectively connected to two ends of the flexible screen, and each supporting piece further comprises a matching piece; the drive assembly is arranged on the shell, the matching pieces of the supporting pieces are located on one side facing the drive assembly, the drive assembly comprises a power output end, the power output end is respectively in transmission connection with the two matching pieces, and therefore the two supporting pieces are driven to synchronously extend outwards or synchronously store inwards to switch between two states. According to the flexible screen supporting device, when the flexible screen supporting device is used, the displayable size of the flexible screen can adapt to more application scenes, and when the flexible screen supporting device is not used and folded, the flexible screen supporting device is small in size and convenient to carry.

Description

Flexible screen supporting device and flexible display device

Technical Field

The application relates to the technical field of flexible screens, in particular to a flexible screen supporting device and a flexible display device.

Background

In the prior art, a flexible screen has been developed as an important application technology of an OLED (Organic Light-Emitting Diode) in recent years. Compared with the traditional screen, the flexible screen has remarkable advantages, such as lighter and thinner volume and lower power consumption, and the application scenes of the flexible screen are wider and wider due to the characteristics of flexibility, good flexibility and the like.

The existing flexible screen display device is generally provided with a sliding roll on one side, and the sliding roll can achieve the effect of expanding and rolling the flexible screen on one side through the actions of sliding out and retracting, such as switching between a mobile phone and a PAD (PAD application data) and switching between a PAD and an NB (PAD application data).

However, the existing flexible display device has a large size when closed, or cannot meet the requirement of displaying more contents when unfolded in some scene applications, and the use experience is not good.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the two sliding scroll shafts can slide and roll simultaneously, the size of the flexible screen supporting device can be further reduced when the flexible screen is tightened up, the flexible screen supporting device is convenient to carry and move, and the size of the flexible display screen fixing device can be further increased when the flexible screen is unfolded, so that the size of the flexible screen when the flexible screen is unfolded is increased.

The invention also provides a flexible display device which comprises the flexible screen supporting device.

According to the embodiment of the invention, the flexible screen supporting device comprises: a housing; the two supporting pieces are arranged on the shell in a reciprocating sliding manner, each supporting piece comprises a sliding scroll used for winding the flexible screen, the sliding scrolls of the two supporting pieces are respectively connected to two ends of the flexible screen, and each supporting piece also comprises a matching piece; the drive assembly is arranged on the shell, the matching pieces of the supporting pieces are located on one side facing the drive assembly, the drive assembly comprises a power output end, the power output end is respectively in transmission connection with the two matching pieces, and therefore the two supporting pieces are driven to synchronously extend outwards or synchronously store inwards to switch between two states.

For unfolding, the two sliding reels can be static or can rotate, and when the two sliding reels rotate, the two sliding reels can only rotate in opposite directions when the two sliding reels execute the same instruction (the flexible screen is wound on the sliding reels or the flexible screen is unfolded).

When the flexible screen supporting device needs to unfold the flexible screen, the driving assembly drives the two supporting pieces to move along the direction gradually away from each other, meanwhile, the sliding scroll shaft on the left side rotates along the clockwise direction, the sliding scroll shaft on the right side rotates along the anticlockwise direction, and the flexible screen is gradually unfolded; when the flexible screen supporting device needs to tighten the flexible screen, the driving assembly drives the two supporting pieces to move in the direction gradually approaching each other, meanwhile, the sliding scroll shaft on the left side rotates in the anticlockwise direction, the sliding scroll shaft on the right side rotates in the clockwise direction, and the flexible screen is gradually wound on the two sliding scroll shafts.

According to the flexible screen supporting device provided by the embodiment of the invention, the flexible screen can be rolled on two sides of the flexible screen in a sliding mode, on one hand, the expandable size of the flexible screen is increased on the premise of not increasing the size of the supporting piece, and the sizes of the shell and the supporting piece can be reduced when the expandable size of the flexible screen is kept unchanged, so that the flexible screen can be reduced when being wound on the sliding roller, the carrying is convenient, the size can be increased when the flexible screen is expanded, the display content is increased, and the displayable size of the flexible screen can adapt to more application scenes and optimize the use experience when the flexible screen is used.

According to the flexible screen supporting device provided by the embodiment of the invention, the driving assembly further comprises two driving parts, the power output end comprises a motor, the motor comprises two output shafts, the two output shafts are respectively positioned on two sides of the motor, each output shaft is connected with the corresponding driving part, and the driving parts are in spiral transmission or meshing transmission with the corresponding matching parts so as to drive the supporting parts to move.

Optionally, the motor is disposed between the two supporting members, the mating member includes a shaft sleeve, the shaft sleeve is disposed on one side of the supporting member close to the motor, the driving member includes one of a lead screw and a screw, the driving member is connected with the corresponding output shaft, and the driving member is inserted into the shaft sleeve.

According to the flexible screen supporting device provided by the embodiment of the invention, the driving assembly further comprises a driving gear and a driving part, the power output end comprises a motor, an output shaft of the motor is connected with the driving gear, the driving gear is simultaneously meshed with the two driving parts, and the driving part is in spiral transmission with the matching part to drive the supporting part to move.

According to the flexible screen supporting device provided by the embodiment of the invention, the matching piece comprises the shaft sleeve, the matching piece is arranged on one side, close to the motor, of the supporting piece, the driving piece comprises one of a screw rod and a screw rod, one end, close to the motor, of the driving piece is provided with the matching gear, and the matching gear is meshed with the driving gear.

According to the flexible screen supporting device provided by the embodiment of the invention, the matching pieces comprise racks, the driving assembly comprises a motor and a driving gear, an output shaft of the motor is connected with the driving gear, the driving gear is simultaneously meshed with the two matching pieces, and moving paths of the two matching pieces do not interfere with each other.

According to the flexible screen supporting device provided by the embodiment of the invention, the shell is provided with the first sliding guide piece, the supporting piece is provided with the second sliding guide piece, and the first sliding guide piece is connected with the second sliding guide piece in a sliding manner.

According to the flexible screen supporting device provided by the embodiment of the invention, the sliding grooves are formed in two opposite sides in the width direction of the machine shell, and the supporting piece is in sliding fit with the sliding grooves.

The flexible screen supporting device according to the embodiment of the invention further comprises: and each rolling driving device is connected with the sliding scroll, and the rolling driving devices are used for driving the sliding scroll to rotate positively or reversely so as to wind or unwind the flexible screen on the sliding scroll.

According to the flexible screen supporting device provided by the embodiment of the invention, the shell is also provided with the locking assembly, and the locking assembly is opposite to one end of the sliding scroll in the length direction and can lock the sliding scroll.

The flexible display device according to an embodiment of the present invention includes: a flexible display screen; such as the flexible screen support device described above.

According to the flexible display device provided by the embodiment of the invention, the flexible screen can be rolled on two sides of the flexible screen in a sliding mode, on one hand, the expandable size of the flexible screen is increased on the premise of not increasing the size of the supporting piece, and the sizes of the shell and the supporting piece can be reduced when the expandable size of the flexible screen is kept unchanged, so that the screen can be reduced when the flexible screen is wound on the sliding scroll, the carrying is convenient, the size can be increased when the flexible screen is expanded, the display content is increased, and the use experience is optimized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a front view of a flexible screen support apparatus according to some embodiments of the present invention;

FIG. 2 is a front view of a flexible screen support apparatus according to further embodiments of the present invention;

FIG. 3 is a front view of a flexible screen support apparatus according to further embodiments of the present invention;

FIG. 4 is a front view of a flexible screen support apparatus according to further embodiments of the present invention;

FIG. 5 is a schematic view of a latch assembly of a flexible screen support apparatus according to an embodiment of the present invention.

Reference numerals:

the flexible-screen support device 1 is provided with,

housing 10, support member 20, fitting member 21, first sub-fitting member 211, second sub-fitting member 212, third sub-fitting member 213, fourth sub-fitting member 214, sliding roller 30, driving assembly 40, motor 41, driving member 42, fitting gear 422, driving gear 44, ratchet wheel 61 and pawl 62.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1 and 2, a flexible screen supporting apparatus 1 according to an embodiment of the present invention includes: a housing 10, two reels 30, two supports 20 and a drive assembly 40.

Each supporting piece comprises a sliding scroll used for winding the flexible screen, the sliding scrolls of the two supporting pieces are respectively connected to two ends of the flexible screen, and each supporting piece further comprises a matching piece; locate on the casing, each support piece's fitting piece all is located one side towards drive assembly, and drive assembly includes power take off end, and two fitting pieces are connected in the transmission of power take off end difference to this drives two support pieces and switches between two states of outwards extending in step or inwards accomodating in step.

Specifically, the housing 10 is used to fix the flexible screen; the supporting members 20 are reciprocally slidably disposed on the casing 10, each supporting member 20 includes a sliding roller 30 for winding the flexible screen, the sliding rollers 30 of the two supporting members 20 are respectively connected to both ends of the flexible screen, and each supporting member 20 further includes a fitting member 21.

In terms of unfolding, the flexible screen is used for displaying images and characters, the two sliding rollers 30 may be static or rotatable, and when the two sliding rollers 30 rotate, when the same instruction is executed by the two sliding rollers 30 (the flexible screen is wound on the sliding rollers 30 or the flexible screen is unfolded), the two sliding rollers 30 can only rotate in opposite directions so as to adjust the length of the flexible screen above the housing 10, in the process, the support member 20 moves along with the sliding rollers 30 to give way for part of the flexible screen to be wound on the sliding rollers 30, or to provide stable support for part of the flexible screen to be unfolded from the sliding rollers 30, therefore, the sliding rollers 30 on the two sides rotate synchronously, the flexible screen supporting device 1 comprises a minimum unfolding position, a maximum unfolding position and any position between the minimum unfolding position and the maximum unfolding position as an intermediate unfolding position, so that the time for the flexible screen to be switched from the minimum unfolding position to the maximum position or from the minimum unfolding position to the intermediate unfolding position is shortened, and vice versa.

When the flexible screen supporting device 1 needs to be switched from a synchronous inward storage state to a synchronous outward extension state, the driving assembly 40 drives the two supporting pieces 20 to move in a direction gradually away from each other, meanwhile, the sliding roller shaft 30 on the left side rotates in a clockwise direction, the sliding roller shaft 30 on the right side rotates in a counterclockwise direction, and the flexible screen is gradually unfolded; when the flexible screen supporting device 1 needs to be switched from the synchronous outward extending state to the synchronous inward retracting state, the driving assembly 40 drives the two supporting members 20 to move in the direction gradually approaching each other, and at the same time, the sliding roller shaft 30 on the left side rotates in the counterclockwise direction, the sliding roller shaft 30 on the right side rotates in the clockwise direction, and the flexible screen is gradually wound on the two sliding roller shafts 30.

Wherein, support piece 20 can locate the top or the below of flexible screen, and when support piece 20 located the top of flexible screen, support piece 20 and flexible screen sliding connection for flat flexible screen when the flexible screen expandes prevents that the flexible screen is crooked.

In some embodiments, the two support members 20 are provided with a rotatable sliding roller 30 on the sides away from each other, the slidable direction of the support members 20 is perpendicular to the axial direction of the sliding roller 30, the two ends of the flexible screen are respectively connected with the sliding roller 30 and can be partially wound on the sliding roller 30, the support members 20 are positioned below the flexible screen to support the flexible screen, the sliding roller 30 rotates synchronously when the support members 20 move, and the two sliding roller 30 rotate in opposite directions when rotating; the driving assembly 40 is disposed on the casing 10 and can drive the two supporting members 20 to slide synchronously in opposite directions.

The flexible screen can be switched between the maximum unfolding position and the minimum unfolding position according to the requirements of a user, so that the unfolding length of the flexible screen is adjusted within the range of the maximum unfolding length L1 of the maximum unfolding position and the minimum unfolding length L2 of the minimum unfolding position, and the flexible screen can be stopped at the middle position, so that the display size of the flexible screen can meet the use requirements of various application scenes.

The supporting members 20 are under and movably connected to the flexible screen, and when the flexible screen is in the maximum extended position, both supporting members 20 are at least partially supported on the casing 10, and when the flexible screen is in the minimum extended position, both supporting members 20 are at least partially extended out of the casing 10.

That is, in the process that the flexible screen is unfolded from the minimum unfolding position, the support member 20 always supports the flexible screen, and the flatness of the flexible screen when the flexible screen is unfolded can be improved.

It should be noted that the slide roller 30 may be driven to rotate by providing the micro motor 41 on the slide roller 30.

According to the flexible screen supporting device 1 provided by the embodiment of the invention, the flexible screen can be rolled on two sides of the flexible screen in a sliding mode, on one hand, the expandable size of the flexible screen is increased on the premise that the size of the supporting piece 20 is not increased, and the sizes of the shell 10 and the supporting piece 20 can be reduced when the expandable size of the flexible screen is kept unchanged, so that the screen can be reduced when the flexible screen is wound on the sliding roller 30, the carrying is convenient, the size of the flexible screen can be increased when the flexible screen is expanded, the display content is increased, and the displayable size of the flexible screen can adapt to more application scenes and the use experience is optimized.

As shown in fig. 2, according to the flexible screen supporting device 1 of the embodiment of the present invention, the driving assembly 40 further includes two driving members 42, the power output end includes a motor 41, the motor 41 includes two output shafts, the two output shafts are respectively located at two sides of the motor 41, each output shaft is connected to a corresponding driving member 42, and the driving members 42 are in a spiral transmission or a meshing transmission with the corresponding mating member 21 to drive the supporting member 20 to move.

According to the flexible screen supporting device 1 provided by the embodiment of the invention, the two supporting pieces 20 are driven to synchronously move through the motor 41, the space of the whole machine can be optimized, the motion synchronism of the two supporting pieces 20 is better, and the structure is simple.

Specifically, the mating member 21 is disposed on a side of the supporting member 20 close to the motor 41, the driving member 42 may be directly connected to an output shaft of the motor 41 through a coaxial connector, or may be indirectly driven through a gear reducer, and the output shaft of the motor 41 is connected to the reducer, and then connected to the driving member 42 through the reducer.

For example, in some embodiments, the engaging member 21 is a rack, the driving member 42 is a pinion, the engaging member 21 is engaged with the driving member 42, and the output shaft of the motor 41 drives the driving member 42 to rotate through the multi-stage reducer, so as to drive the engaging member 21 to move, and thus the supporting member 20 to move.

In other embodiments, the engaging element 21 is a shaft sleeve, the driving element 42 includes one of a screw and a lead screw, the engaging element 21 has a thread engaged with the driving element 42, the driving element 42 is inserted into the engaging element 21, the engaging element 21 is threadedly engaged with the driving element 42, and the output shaft of the motor 41 drives the driving element 42 to rotate through the multi-stage reducer, so as to drive the engaging element 21 to move, and thus the supporting element 20 to move.

It will be appreciated that fitting 21 is fixedly connected to support member 20, including but not limited to being riveted, welded, or integrally formed.

It should be noted that the driving member 42 includes one of a lead screw and a screw. The fitting member 21 is provided with a threaded hole, and the thread of the threaded hole is matched with the driving member 42 so that the driving member 42 and the fitting member 21 realize screw transmission.

In other embodiments, the motor 41 is disposed between the two supporting members 20, the mating member 21 includes a bushing, the bushing is disposed on a side of the supporting member 20 close to the motor 41, the driving member 42 includes one of a lead screw and a screw, the driving member 42 is connected to a corresponding output shaft, and the driving member 42 is inserted into the mating member 21.

Wherein, in some embodiments, the driving part 42 and the fitting part 21 are in screw transmission, the driving part 42 includes one of a screw rod and a screw rod, the driving part 42 further includes two limiting parts arranged oppositely, the limiting parts are fixed on the casing 10 and define a mounting hole, the mounting hole is a smooth hole, two ends of the driving part 42 are respectively penetrated into the mounting hole, one of the limiting part and the driving part 42 is provided with a limiting protrusion, the other is provided with a limiting groove, the circumferential periphery of the limiting groove ring extends for a circle, thereby limiting the driving part 42 from moving in the axial direction, the fitting part 21 includes a fixing part and an assembling part connected with the fixing part, the fixing part is connected with the supporting part 20, the assembling part is sleeved on the driving part 42, the output shaft through the motor 41 drives the driving part 42 to rotate, and then the fitting part 21 is driven to move through the rotation of the driving part 42, thereby driving the supporting part 20 to move.

As shown in fig. 1, according to the flexible screen supporting device 1 of the embodiment of the present invention, the driving assembly 40 further includes a driving gear 44 and a driving member 42, the power output end includes a motor 41, the output shaft of the motor 41 is connected to the driving gear 44, the driving gear 44 is engaged with the two driving members 42 at the same time, and the driving member 42 is in spiral transmission with the mating member 21 to drive the supporting members to move, so that the diversity of the scheme is further increased, the two supporting members 20 are driven to move synchronously by one motor 41, the space of the whole device can be optimized, the synchronism of the movement of the two supporting members 20 is better, the structure arrangement is simplified, the cost is reduced, and the installation space is saved.

Wherein the simultaneous engagement of the drive gear 44 with both mating members 21 includes both direct and indirect engagement.

According to the flexible screen supporting device 1 of the embodiment of the invention, the matching piece 21 defines a threaded hole, the matching piece 21 comprises a shaft sleeve, the matching piece 21 is arranged on one side of the supporting piece 20 close to the motor 41, the outer surface of the driving piece 42 is provided with threads, the driving piece 42 comprises one of a lead screw and a screw rod, one end of the driving piece 42 close to the motor 41 is provided with the matching gear 422, and the matching gear 422 is meshed with the driving gear 44.

In some embodiments, the drive gear 44 meshes with the mating gear 422 of the left support 20, and the mating gear 422 of the right support 20 meshes with the mating gear 422 of the left support 20, thereby enabling the drive gear 44 to mesh with both mating gears 422 simultaneously.

In some embodiments, as shown in FIG. 3, one side of the driving gear 44 is engaged with the mating gear 422 of the left support member 20, the other side of the driving gear 44 is engaged with the mating gear 422 of the right support member 20, and the driving member 42 is inserted into the mating member 21 through

In some embodiments, as shown in fig. 1, the driving assembly 40 includes two motors 41 and four lead screws or four screws, the engaging element 21 on the left side supporting element 20 includes a first sub-engaging element 211 and a second sub-engaging element 212, the engaging element 21 on the right side supporting element 20 includes a third sub-engaging element 213 and a fourth sub-engaging element 214, each lead screw or screw is in meshing transmission with the corresponding sub-engaging element 21, one motor 41 simultaneously drives the first sub-engaging element 211 and the third sub-engaging element 213, and the other motor 41 simultaneously drives the second sub-engaging element 212 and the fourth sub-engaging element 214.

As shown in fig. 4, according to the flexible screen supporting device 1 of the embodiment of the present invention, each supporting member 20 is provided with the mating member 21, the mating member 21 includes a rack, the driving assembly 40 includes the motor 41 and the driving gear 44, the output shaft of the motor 41 is connected with the driving gear 44, the driving gear 44 is engaged with the two mating members 21 simultaneously, and the moving paths of the two mating members 21 do not interfere with each other.

According to the flexible screen supporting device 1 of the embodiment of the invention, the casing 10 is provided with the first sliding guide piece, the supporting member 20 is provided with the second sliding guide piece, the first sliding guide piece and the second sliding guide piece are connected in a sliding manner, and the first sliding guide piece and the second sliding guide piece are limited by the matched guiding action of the first sliding guide piece and the second sliding guide piece when the supporting member 20 slides, so that the supporting member 20 is prevented from deviating the sliding track and being blocked with the casing 10 when sliding.

In some embodiments, the first sliding guide piece is a sliding rail, the second sliding guide piece is a sliding groove, and the sliding rail is slidably clamped in the sliding groove; in some other embodiments, the first sliding guide piece is a sliding slot, the second sliding guide piece is a sliding rail, and the sliding rail is slidably engaged in the sliding slot. In some other embodiments, the first sliding guide piece is a guide post, the second sliding guide piece is a guide slider, the guide slider defines a limiting hole, and the guide post is disposed through the limiting hole.

In some embodiments, the limiting member is fixed on the housing 10 and defines a mounting hole and a positioning hole at the same time, two ends of the screw rod respectively penetrate through the mounting hole, two ends of the guide post are respectively fixed in the positioning hole, the fixing portion of the fitting member 21 defines the limiting hole, the fitting member 21 is sleeved on the guide post and the screw rod at the same time, except that the fitting member 21 is in sliding fit with the guide post, and the fitting member 21 is in meshing transmission with the screw rod, so that the layout structure of each component is more compact.

According to the flexible screen supporting device 1 of the embodiment of the invention, the two sides opposite to the width direction on the machine shell 10 are provided with the sliding grooves, and the supporting piece 20 is in sliding fit with the sliding grooves, so that the sliding grooves can guide and limit the supporting piece 20, and the possibility that the supporting piece 20 deviates from a preset motion track in the moving process to cause clamping stagnation of the matching piece 21 and the driving piece 42 is prevented.

Here, the "width direction of the casing 10" is defined as being the same direction as the axial direction of the spool 30.

The flexible screen supporting device 1 according to the embodiment of the invention further comprises two rolling driving devices. Each of the take-up driving devices is connected to the slide spool 30, and the take-up driving device is used to drive the slide spool 30 to rotate positively or negatively so as to wind or unwind the flexible screen on the slide spool 30. When the flexible screen supporting device 1 needs to unfold the flexible screen, the driving assembly 40 drives the two supporting pieces 20 to move in the direction gradually away from each other, meanwhile, the sliding scroll 30 on the left side is driven by the corresponding winding driving device to rotate in the clockwise direction, the sliding scroll 30 on the right side is driven by the corresponding winding driving device to rotate in the counterclockwise direction, and the flexible screen is gradually unfolded; when the flexible screen supporting device 1 needs to take up the flexible screen, the driving assembly 40 drives the two supporting members 20 to move in a direction gradually approaching each other, and at the same time, the sliding roller shaft 30 on the left side rotates in a counterclockwise direction, the sliding roller shaft 30 on the right side rotates in a clockwise direction, and the flexible screen is gradually wound on the two sliding roller shafts 30.

According to the flexible screen supporting device 1 of the embodiment of the invention, the casing 10 is further provided with a locking assembly, and the locking assembly is opposite to one end of the sliding roller 30 in the length direction and can lock the sliding roller 30.

The locking assembly can control the flexible screen to move in one direction along the extending direction and lock the sliding scroll 30 when the flexible screen is unfolded to a certain middle position and stops being unfolded, so that the flexible screen can stably stay at a certain middle position. In some embodiments, as shown in fig. 5, the locking assembly includes a ratchet wheel 61, a pawl 62 and an elastic resetting member, the elastic resetting member normally drives the sliding roller 30 to rotate along the direction of winding the flexible screen, the ratchet wheel 61 is coaxially arranged and fixedly connected with the sliding roller 30, the pawl 62 is engaged with the ratchet wheel 61 and normally prevents the ratchet wheel 61 from rotating around the flexible screen, and the pawl 62 and the ratchet wheel 61 cooperate to lock and position the flexible screen, so that the working reliability of the locking assembly is higher, and the ratchet mechanism has a simple structure and is convenient to process and assemble.

The locking assembly also includes an unlocking switch connected to the pawl 62 such that the pawl 62 is movable out of engagement with the ratchet wheel 61. In the process of unfolding the flexible screen, the sliding scroll 30 on the left side rotates clockwise, the sliding scroll 30 on the right side rotates anticlockwise, when the flexible screen stops unfolding, the pawl 62 abuts against the ratchet wheel 61 to prevent the flexible screen from retracting under the driving of the elastic resetting piece, when the flexible screen needs to be reset to the minimum unfolding position, the unlocking switch is pressed to enable the pawl 62 to be separated from the ratchet wheel 61, and the sliding scroll 30 can continue to rotate.

The specific working process is as follows:

when the flexible screen needs to be unfolded, the unlocking switch is pressed, so that the pawl 62 is disengaged from the ratchet wheel 61, the driving assembly 40 drives the two supporting pieces 20 to move in the direction gradually away from each other, meanwhile, the sliding roller shaft 30 on the left side rotates in the clockwise direction, the sliding roller shaft 30 on the right side rotates in the counterclockwise direction, the flexible screen is gradually unfolded, and when the flexible screen is unfolded to a specified position, the pawl 62 is reset, and the pawl 62 is stopped against the ratchet wheel 61.

The flexible display device according to an embodiment of the present invention includes: a flexible display screen; such as the flexible screen support 1 described above.

According to the flexible display device provided by the embodiment of the invention, the flexible screen can be rolled on two sides of the flexible screen in a sliding mode, on one hand, the expandable size of the flexible screen is increased on the premise that the size of the support member 20 is not increased, and the sizes of the shell 10 and the support member 20 can be reduced when the expandable size of the flexible screen is kept unchanged, so that the screen can be reduced when the flexible screen is wound on the sliding roller 30, the flexible display device is convenient to carry, and the size of the flexible screen can be increased when the flexible screen is expanded, so that the display content is increased, and the use experience is optimized.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A flexible screen support device, comprising:

a housing;

the two supporting pieces can be arranged on the shell in a reciprocating sliding mode, each supporting piece comprises a sliding scroll shaft used for winding the flexible screen, the sliding scroll shafts of the two supporting pieces are respectively connected to two ends of the flexible screen, and each supporting piece further comprises a matching piece;

the driving assembly is arranged on the shell, the matching pieces of the supporting pieces are positioned on one side facing the driving assembly, the driving assembly comprises power output ends, and the power output ends are respectively in transmission connection with the two matching pieces so as to drive the two supporting pieces to be switched between two states of synchronously extending outwards or synchronously accommodating inwards.

2. The flexible screen supporting device according to claim 1, wherein the driving assembly further comprises two driving members, the power output end further comprises a motor, the motor comprises two output shafts, the two output shafts are respectively located at two sides of the motor, each output shaft is connected with a corresponding driving member, and the driving members are in spiral transmission or meshing transmission with the corresponding matching members to drive the supporting members to move.

3. The flexible screen support device of claim 2, wherein the motor is disposed between two of the support members, the mating member includes a bushing disposed on a side of the support member adjacent to the motor, the driving member includes one of a lead screw and a threaded rod, the driving member is connected to the corresponding output shaft, and the driving member is inserted in the bushing.

4. The flexible screen support device of claim 1, wherein the drive assembly further comprises a drive gear and a drive member, the power output end further comprises a motor, an output shaft of the motor is connected with the drive gear, the drive gear is simultaneously engaged with the two drive members, and the drive members are in screw transmission with the mating member to drive the support members to move.

5. The flexible screen support device of claim 4, wherein the mating member comprises a bushing, the mating member is disposed on a side of the support member near the motor, the driving member comprises one of a lead screw and a screw, and a mating gear is disposed on an end of the driving member near the motor and engaged with the driving gear.

6. A flexible screen support apparatus according to claim 1, wherein the engagement members comprise racks, the drive assembly comprises a motor and a drive gear, an output shaft of the motor is connected to the drive gear, the drive gear is simultaneously engaged with both of the engagement members, and the movement paths of both of the engagement members do not interfere with each other.

7. A flexible screen support device according to any of claims 1 to 6 wherein a first guide slide is provided on the housing and a second guide slide is provided on the support member, the first guide slide being slidably connected to the second guide slide.

8. The flexible screen support device of claim 1, wherein sliding grooves are formed in two sides of the housing opposite to each other in the width direction, and the support member is in sliding fit with the sliding grooves.

9. The flexible screen support device of claim 1, further comprising: and each rolling driving device is connected with the sliding reel and is used for driving the sliding reel to rotate positively or reversely so as to wind the flexible screen on the sliding reel or unwind the flexible screen.

10. The flexible screen support device of claim 1, wherein the housing further comprises a locking assembly disposed on the housing, the locking assembly being opposite to a lengthwise end of the sliding roller and locking the sliding roller.

11. A flexible display device, comprising: a flexible display screen; a flexible screen support apparatus according to any one of claims 1 to 10.