CN210606389U

CN210606389U - Flexible display device

Info

Publication number: CN210606389U
Application number: CN201921793233.6U
Authority: CN
Inventors: 张卓; 王芳; 韩文; 冯子康
Original assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-05-22
Anticipated expiration: 2029-10-23

Abstract

The utility model provides a flexible display device, which comprises a housin, the rolling subassembly, flexible display module, runner assembly and apron, the chamber is accomodate to inside being provided with of casing, the rolling subassembly sets up in accomodating the intracavity, flexible display module's partly sets up in casing one side, another part stretches into accomodates the intracavity and is connected with the rolling subassembly, when flexible display module is pulled out from accomodating the chamber, the rolling subassembly provides the elastic tension who draws in for flexible display module, the runner assembly stretches out with flexible display module and accomodates the one end in chamber and be connected, the apron is stretched out with flexible display module through the runner assembly and is accomodate the one end rotation in chamber and be connected. Can realize great display area and less display area, be suitable for the scene diversified, the apron can regard as protective housing, support, backup pad or support reinforcing plate respectively to use according to flexible display device's different states, avoids flexible display subassembly to appear pressing down and sink, has promoted user's use and has felt.

Description

Flexible display device

Technical Field

The application relates to the technical field of display panels, in particular to a flexible display device.

Background

At present, flexible display device has the advantage that resistant bending property is good, can expand or fold through the flexible screen and curl and can realize that big screen and little screen switch at will, consequently receives more and more market favor.

In the existing flexible display device, when the flexible screen is not unfolded, the part of the flexible screen exposed outside is easy to be impacted, dropped and scraped, so that the risk of damage to the flexible screen is increased; in order to obtain a sufficiently large display interface in the unfolded state of the flexible screen, the stretched portion of the flexible screen is not supported by the back or the back is supported by the back weakly, so that the user feels depressed when performing a point touch operation, thereby affecting the use hand feeling of the user.

In view of the foregoing, it is desirable to provide a new flexible display device to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flexible display device to solve current flexible display device under flexible screen exhibition state, partial flexible screen is not supported or the back supports more weakly because of the back, and leads to the user to have when carrying out the point touch operation and press down the technical problem who sink and feel.

In order to solve the above problem, the utility model provides a technical scheme as follows:

an embodiment of the utility model provides a flexible display device, include:

the device comprises a shell, a handle and a handle, wherein a containing cavity is arranged inside the shell;

the winding assembly is arranged in the accommodating cavity;

one part of the flexible display assembly is arranged on one side of the shell, the other part of the flexible display assembly extends into the containing cavity and is connected with the rolling assembly, and when the flexible display assembly is pulled out of the containing cavity, the rolling assembly provides a furled elastic tension for the flexible display assembly;

the rotating assembly is connected with one end, extending out of the containing cavity, of the flexible display assembly; and

the cover plate is rotatably connected with one end, extending out of the containing cavity, of the flexible display assembly through the rotating assembly.

According to the flexible display device provided by the embodiment of the present invention, the housing includes a main body portion and a sliding portion slidably connected to the main body portion;

when the flexible display assembly is pulled to extend, the rotating assembly drives the sliding part to slide towards the direction far away from the main body part; when the flexible display assembly is curled and folded, the rotating assembly drives the sliding portion to slide towards the direction close to the main body portion.

According to the utility model provides a flexible display device, the runner assembly with all be provided with the magnetic means on the sliding part, the runner assembly with pass through between the sliding part the magnetic means adsorbs.

According to the utility model provides a flexible display device, the main part with be provided with stop member on the sliding part, stop member is used for injecing the sliding part is for the sliding range of main part.

According to the flexible display device provided by the embodiment of the present invention, the flexible display assembly includes a first display portion, a second display portion adjacent to the first display portion, and a third display portion adjacent to the second display portion, wherein one end of the first display portion, which is far away from the second display portion, is connected to the rotating assembly;

an opening is formed in the main body portion, and one end, far away from the second display portion, of the third display portion is connected with the winding assembly through the opening.

According to the utility model provides a flexible display device, when flexible display device is in the first state, the sliding part with the main part overlap sets up, first display part is located on the main part, the second display part with the third display part all stretches into accomodate the intracavity, will the apron winds rotating assembly upset extremely on the first display part, and cover first display part.

According to the utility model provides a flexible display device works as when flexible display device is in the second state, the sliding part with the main part overlap sets up, first display part is located on the main part, the second display part with the third display part all stretches into accomodate the intracavity, will the apron winds the runner assembly upset, so that apron place plane with the contained angle that forms between the plane of first display part place is the inferior angle.

According to the utility model provides a flexible display device, when flexible display device is in the third state, the sliding part with the main part overlap sets up, rotating assembly drives flexible display assembly is to keeping away from the direction of main part removes, so that the second display part is followed it stretches to accomodate the intracavity by the pulling on the main part, the third display part is located accomodate the intracavity, will the apron winds rotating assembly upset extremely first display part back.

According to the utility model provides a flexible display device, when flexible display device is in the fourth state, the runner assembly drives flexible display assembly is to keeping away from the direction of main part removes, the sliding part slides extremely the main part is close to one side of runner assembly, the second display part is followed it stretches to receive the intracavity by the pulling on the sliding part, the third display part is located receive the intracavity, will the apron winds the runner assembly upset, so that the apron place the plane with the contained angle that forms between the plane of first display part place is inferior angle.

According to the utility model provides a flexible display device, when flexible display device is in the fifth state, the runner assembly drives flexible display assembly is to keeping away from the direction of main part removes, the sliding part slides to the main part is close to one side of runner assembly, the second display part is followed it extends to receive the intracavity by the pulling on the sliding part, the third display part is followed it extends to receive the intracavity by the pulling on the main part, will the apron winds the runner assembly upset extremely first display part back.

According to the utility model provides a flexible display device, the apron with flexible display module the shape and the size of first display part are the same.

According to the utility model provides a flexible display device, flexible display subassembly includes the flexible screen, is located protective layer on the flexible screen and being located the flexible screen with tie coat between the protective layer, the runner assembly with the one end centre gripping of protective layer is connected.

According to the utility model provides a flexible display device, the rolling subassembly includes the parallel rolling component of axis and an at least pulley, the rolling component with the pulley is fixed on the casing, flexible display subassembly is kept away from the one end of runner assembly stretch into extremely accomodate the intracavity, and the bypass the pulley with the rolling component is connected.

According to the utility model provides a flexible display device, the rolling component includes the coil spring.

According to the flexible display device provided by the embodiment of the present invention, the rotating assembly includes a first rotating shaft and a second rotating shaft, a hollow cavity adapted to the second rotating shaft is provided in the first rotating shaft, the second rotating shaft is located in the hollow cavity, and extends towards two ends of the first rotating shaft respectively;

the flexible display assembly is characterized in that a first groove and a second groove are formed in the first rotating shaft, one end, extending out of the accommodating cavity, of the flexible display assembly is connected with the first rotating shaft through the first groove, and the cover plate is connected with the second rotating shaft through the second groove.

According to the utility model provides a flexible display device, be provided with the functional device on the apron.

The utility model has the advantages that: the utility model provides a flexible display device, including casing, rolling subassembly, flexible display module, runner assembly and apron, drive flexible display module through the runner assembly and be pulled out the extension from accomodating the chamber, the rolling subassembly provides a elasticity pulling force of drawing in for flexible display module, can realize great display area and less display area, the flexible display device that has great display area can be used as the map, the flexible display device that has less display area is convenient for accomodate and carry, applicable scene is diversified; a cover plate is arranged at one end of the flexible display assembly extending out of the containing cavity, the cover plate can be turned over for 360 degrees along the rotating assembly, and the cover plate can be used as a protective shell or a support when the flexible display assembly is not extended; under flexible display module development condition, the apron can overturn to the partial flexible display module back of pulling out in order to use as backup pad or support reinforcing plate, avoids flexible display module to appear pressing to sink, has promoted user's use and has felt.

Drawings

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

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

fig. 2A is a schematic structural diagram of a first flexible display device according to an embodiment of the present invention in a first state;

fig. 2B is a schematic structural diagram of a first flexible display device in a second state according to an embodiment of the present invention;

fig. 2C is a schematic structural diagram of the first flexible display device in a third state according to an embodiment of the present invention;

fig. 2D is a schematic structural diagram of the first flexible display device in a fourth state according to an embodiment of the present invention;

fig. 2E is a schematic structural diagram of the first flexible display device in a fifth state according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structural diagram of a flexible display module according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a rotating assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second flexible display device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a housing of a second flexible display device according to an embodiment of the present invention;

fig. 7A is a schematic structural diagram of a second flexible display device according to an embodiment of the present invention in a first state;

fig. 7B is a schematic structural diagram of a second flexible display device according to an embodiment of the present invention in a second state;

fig. 7C is a schematic structural diagram of a second flexible display device in a third state according to an embodiment of the present invention;

fig. 7D is a schematic structural diagram of a second flexible display device in a fourth state according to an embodiment of the present invention;

fig. 7E is a schematic structural diagram of a second flexible display device in a fifth state according to an embodiment of the present invention.

Detailed Description

The following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], refer to the directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.

The utility model discloses to prior art's flexible display device, under flexible screen expansion state, partial display screen is not supported or back supports less strongly because of the back, and leads to the user to have when carrying out the point touch operation and press down sunken sense, and this defect can be solved to this embodiment.

As shown in fig. 1, a first flexible display device provided in the embodiment of the present invention includes a housing 1, a winding assembly 2, a flexible display assembly 3, a rotating assembly 4, and a cover plate 5; a receiving cavity 11 is formed in the housing 1, the winding assembly 2 is located in the receiving cavity 11, one part of the flexible display assembly 3 is located on one side of the housing 1, and the other part of the flexible display assembly 3 extends into the receiving cavity 11 and is connected with the winding assembly 2, because the winding assembly 2 has an automatic winding function, the part of the flexible display assembly 3 extending into the receiving cavity 11 can be wound and collected onto the winding assembly 2, meanwhile, the part of the flexible display assembly 3 wound on the winding assembly 2 can be pulled out from the receiving cavity 11 under the action of external force, and when the flexible display assembly 3 is pulled out from the receiving cavity 11, the winding assembly 2 provides a collected elastic tension for the flexible display assembly 3; the rotating assembly 4 is connected with one end of the flexible display assembly 3 extending out of the accommodating cavity 11, and external force (such as pulling force) can be applied to the rotating assembly 4 to drive the flexible display assembly 3 to move; the cover plate 5 is connected with one end, extending out of the containing cavity 11, of the flexible display assembly 3 through the rotating assembly 4, so that the cover plate 5 can turn around the rotating assembly 4.

Specifically, the casing 1 includes a main body portion 12 and a sliding portion 13 slidably connected to the main body portion 12, the sliding portion 13 and the main body portion 12 can slide relatively to each other, so as to increase the size of the upper surface area of the casing 1. in the embodiment of the present invention, the sliding portion 13 is located on the upper surface of the main body portion 12, the sliding portion 13 is a rectangular plate-shaped structure, optionally, a sliding rail can be provided on the main body portion 12, and the sliding portion 13 slides along the sliding rail.

The main body 12 is provided with an opening, the opening is arranged away from the rotating assembly 4, and the opening may be located at the upper part of the main body 12 or at the side part of the main body 12, which is not limited herein; when the flexible display module 3 is pulled to extend, the rotating module 4 drives the sliding portion 13 to slide in a direction away from the main body portion 12, so that the flexible display module 3 is pulled out of the accommodating cavity 11; when the flexible display assembly 3 is rolled and folded, the rotating assembly 4 drives the sliding portion 13 to slide toward the main body portion 12, so that the flexible display assembly 3 extends into the accommodating cavity 11 and is rolled and folded onto the rolling assembly 2.

Specifically, the flexible display assembly 3 includes a first display portion 31, a second display portion 32 adjacent to the first display portion 31, and a third display portion 33 adjacent to the second display portion 32, wherein an end of the first display portion 31 away from the second display portion 32 is connected to the rotating assembly 4, and an end of the third display portion 33 away from the second display portion 32 is connected to the winding assembly 2 through the opening; it should be noted that the flexible display module 3 is not formed by splicing the first display portion 31, the second display portion 32 and the third display portion 33, but is formed integrally, and for clarity of explaining the technical solution of the present application, the embodiment of the present invention only divides the flexible display module 3 into the first display portion 31, the second display portion 32 and the third display portion 33 from the display area.

As shown in fig. 2A, when the flexible display device is in the first state, the sliding portion 13 and the main body portion 12 do not slide relatively, the sliding portion 13 and the main body portion 12 are overlapped, the first display portion 31 is located on the upper surface of the main body portion 12, the second display portion 32 and the third display portion 33 both extend into the receiving cavity 11 through the opening and are curled and collected on the rolling assembly 2, the first display portion 31 can be in a display or non-display state, and the second display portion 32 and the third display portion 33 are both in a non-display state, the cover plate 5 is turned over onto the first display portion 31 around the rotating assembly and covers the first display portion 31, and at this time, the cover plate 5 can be used as a protective shell of the flexible display device to prevent the first display portion 31 exposed to the outside from being hit, Dropping, scraping and the like, particularly in more severe military environments, can reduce the risk of damage to the flexible display device and prolong the product life.

In this state, when the flexible display device is not used, the first display portion 31 is in a non-display state, and the flexible display device is small in size and convenient to store and carry; when the flexible display device is used, the first display part 31 is in a display state, and the cover plate 5 is made of a transparent glass material, so that a user can view or operate the first display part 31 through the cover plate 5.

As shown in fig. 2B, when the flexible display device is in the second state, the sliding portion 13 and the main body portion 12 do not slide relatively, the sliding portion 13 and the main body portion 12 are overlapped, the first display portion 31 is located on the upper surface of the main body portion 12, the second display portion 32 and the third display portion 33 both extend into the receiving cavity 11 through the opening and are curled and collected on the winding assembly 2, and both the second display portion 32 and the third display portion 33 are in the non-display state.

The second state is different from the first state in that the first display portion 31 is in the display state, and the cover 5 is turned around the rotating assembly 4 so that an included angle theta formed between a plane where the cover 5 is located and a plane where the first display portion 31 is located is a minor angle (0 DEG & lttheta & lt 180 DEG), preferably, 0 DEG & lttheta & lt 90 deg.

In this state, the cover plate 5 can be used as a support of the electronic device using the flexible display device, so that a user does not need to hold the electronic device when using the flexible display device, adverse factors such as aching of wrists and two arms and inconvenience in activities of two hands caused by holding the electronic device for a long time are avoided, and especially in military activities, the user often needs to perform multiple operations with two hands simultaneously, so that the flexible display device is convenient and practical and has strong operability; simultaneously apron 5 can regard as snatchs the plane, and is comparatively convenient.

As shown in fig. 2C, when the flexible display device is in a third state, the third state is different from the first state and the second state in that the second display portion 32 is also pulled out of the housing chamber 11.

Specifically, the sliding portion 13 and the main body portion 12 do not slide relatively, the sliding portion 13 and the main body portion 12 are overlapped, the rotating assembly 4 drives the flexible display assembly 3 to move in a direction away from the main body portion 12, so that the second display portion 32 is pulled and extended from the receiving cavity 11 to the main body portion 12 through the opening, the first display portion 31 is in a suspended state, the second display portion 32 is supported by the main body portion 12, and the third display portion 33 is located in the receiving cavity 11; at this time, when the first display portion 31 and the second display portion 32 are both in the display state, and the third display portion 33 is in the non-display state, the cover plate 5 is turned over to the back of the first display portion 31 around the rotating assembly 4 to support the first display portion 31.

In this state, the cover plate 5 can serve as a back support plate of the first display portion 31, so that the user is prevented from pressing and sinking during the point touch operation, and the user's use feeling is improved.

As shown in fig. 2D, when the flexible display device is in a fourth state, the fourth state is different from the third state in that a relative sliding occurs between the sliding portion 13 and the main body portion 12.

Specifically, the rotating assembly 4 drives the flexible display assembly 3 to move in a direction away from the main body 12, the sliding portion 13 slides to a side of the main body 12 close to the rotating assembly 4, the second display portion 32 is pulled and extended from the receiving cavity 11 onto the sliding portion 13, the first display portion 31 moves onto the sliding portion 13, and the second display portion 32 moves onto the main body 12; the first display portion 31 is supported by the sliding portion 13, the second display portion 32 is supported by the main body portion 12, and the third display portion 33 is located in the housing chamber 11; at this time, when the first display portion 31 and the second display portion 32 are both in the display state, and the third display portion 33 is in the non-display state, the cover 5 is turned around the rotating assembly 4, so that an included angle formed between a plane where the cover 5 is located and a plane where the first display portion 31 is located is a minor angle (0 ° < θ < 180 °), preferably, 0 ° < θ < 90 °.

In this state, similar to the second state, the cover plate 5 may be used as a stand of an electronic device to which the flexible display device is applied, or the cover plate 5 may be turned over to the back of the sliding portion 13 (θ is 0 °), and used as a support reinforcing plate of the first display portion 31, so as to increase support stability; meanwhile, compared with the second state, the flexible display device has a larger display area and can be suitable for more use scenes.

As shown in fig. 2E, when the flexible display device is in a fifth state, the fifth state is different from the fourth state in that the third display portion 33 is also pulled out of the housing chamber 11.

Specifically, relative sliding occurs between the sliding portion 13 and the main body portion 12, the sliding portion 13 slides to a side of the main body portion 12 close to the rotating assembly 4, the second display portion 32 is pulled and extended from the inside of the receiving cavity 11 to the sliding portion 13, and the third display portion 33 is pulled and extended from the inside of the receiving cavity 11 to the main body portion 12; the first display portion 31 is in a suspended state, the second display portion 32 is supported by the sliding portion 13, and the third display portion 33 is supported by the main body portion 12; at this time, when the first display unit 31, the second display unit 32, and the third display unit 33 are in the display state, the cover 5 is turned over around the rotation member 4 to the back of the first display unit 31.

In this state, similar to the third state, the cover plate 5 can serve as a back support plate of the first display portion 31, so that a user is prevented from having a pressing and sinking feeling during a point touch operation, and the use hand feeling of the user is improved; meanwhile, the flexible display device has a larger display area than the second state, the third state and the fourth state, and can be applied to more use scenes.

In the embodiment of the present invention, the cover plate 5 and the first display portion 31 of the flexible display assembly 3 have the same shape and size, so that the cover plate 5 can completely cover or completely support the first display portion 31; the upper surfaces of the slide unit 13 and the main body unit 12 have the same shape and size, that is, the display areas of the first display unit 31, the second display unit 32, and the third display unit 33 are equal to each other.

It is understood that, if the area of the first display portion 31 is taken as a unit display area, the display areas of the first display portion 31, the second display portion 32 and the third display portion 33 are all equivalent to the unit display area, and the flexible display device has 1 time of the unit display area when the flexible display device is in the first state and the second state; when the flexible display device is in a third state and a fourth state, the flexible display device has 2 times of unit display area; when the flexible display device is in a fifth state, the flexible display device has 3 times of unit display area; of course, it should be noted that, in other embodiments, the display areas of the first display portion 31, the second display portion 32 and the third display portion 33 may also be unequal, and then the size relationship of the display areas of the flexible display device in different states may also be correspondingly changed accordingly. Therefore, the user can select corresponding display state according to actual need and application scene to obtain great display area or less display area, wherein, when flexible display device has great display area, it can regard as uses such as electron military map, can see landform and overall arrangement more clearly, and can carry out military site parameter setting through bluetooth or internet access, has very big military value, and when flexible display device has less display area, can regard as uses such as cell-phone, military controller, and conveniently accomodate and carry, be suitable for the scene diversification.

Preferably, the rotating assembly 4 and the sliding part 13 are both provided with magnetic devices 6, and the rotating assembly 4 and the sliding part 13 are attracted by the magnetic devices 6.

Specifically, when the flexible display device is in the first state and the second state, the rotating assembly 4 and the sliding part 13 are tightly and fixedly connected; when the flexible display device is in the third state, the external pulling force applied to the rotating assembly 4 is greater than the magnetic force between the sliding portion 13 and the rotating assembly 4, so that the rotating assembly 4 is separated from the housing 1, the rotating assembly 4 drives the flexible display assembly 3 to move in the direction away from the main body portion 12, and when the cover plate 5 is turned over to the back of the first display portion 31, one side of the cover plate 5 away from the rotating assembly 4 abuts against one side of the sliding portion 13 close to the rotating assembly 4.

When the flexible display device is in the fourth state or the fifth state, firstly, an external pulling force applied to the rotating assembly 4 is smaller than a magnetic force between the sliding portion 13 and the rotating assembly 4, the rotating assembly 4 and the sliding portion 13 are disengaged, so that the rotating assembly 4 drives the flexible display assembly 3 and the sliding portion 13 to move in a direction away from the main body portion 12 at the same time, further, a limiting member is disposed on the main body portion 12 and the sliding portion 13, the limiting member is used for limiting a sliding range of the sliding portion 13 relative to the main body portion 12, so that when the sliding portion 13 moves for a certain distance, the external pulling force applied to the rotating assembly 4 is limited, at this time, the external pulling force applied to the rotating assembly 4 is larger than the magnetic force between the sliding portion 13 and the rotating assembly 4, the sliding portion 13 stops moving, and the rotating assembly 4 drives the flexible display assembly 3 to continue to move in the direction away from the main body portion 12 And the second display part 32 and/or the third display part 33 are/is moved to be pulled out of the containing cavity 11, and similarly, when the cover plate 5 is turned to the back of the first display part 31, one side of the cover plate 5 far away from the rotating assembly 4 is abutted to one side of the sliding part 13 close to the rotating assembly 4.

Alternatively, the magnetic means 6 may be a magnet.

Specifically, as shown in fig. 3, the flexible display assembly 3 includes a flexible panel 34, a protective layer 35 located on the flexible panel 34, and an adhesive layer 36 located between the flexible panel 34 and the protective layer 35, wherein the rotating assembly 4 is connected to one end of the protective layer 35 in a clamping manner.

The protective layer 35 includes a first segment 351, a second segment 352, and a third segment 353 located between the first segment 351 and the second segment 352, the first segment 351 is located at one end of the first display portion 31 away from the second display portion 32, and the third segment 353 is disposed corresponding to the flexible screen 34, on one hand, the first segment 351 is used for being connected with the rotating component 4, the rotating component 4 drives the flexible display component 3 to move, actually, the rotating component 4 directly drives the protective layer 35 to move, so that the protective layer 35 drives the flexible screen 34 to move, and the flexible screen 34 can be prevented from being damaged due to excessive stress when the rotating component 4 directly pulls the flexible screen 34; on the other hand, since the second segment 352 is not provided with the flexible screen 34, it is ensured that the protective layer 35 is rolled up on the winding assembly 2 instead of the flexible screen 34, thereby ensuring that the flexible screen 34 is subjected to a smaller stress.

Alternatively, the material of the protective layer 35 may be a flexible polyimide film or other transparent Organic film, the flexible screen 34 may be an Organic Light-Emitting Diode (OLED) display screen, and the adhesive layer 36 may be an adhesive layer such as an optical adhesive.

Specifically, the winding assembly 2 includes a winding member 21 and at least one pulley 22, the winding member 21 and the pulley 22 are fixed on the housing, and one end of the flexible display assembly 3 away from the rotating assembly 4 extends into the receiving cavity 11 from the opening and is connected with the winding member 21 by bypassing the pulley 22.

Optionally, the rolling member 21 is a coil spring, and since the coil spring can continuously provide a larger restoring force in a narrow space, when the flexible display module 3 is pulled out from the receiving cavity 11, the coil spring can provide a furled elastic pulling force for the flexible display module 3, and can automatically pull the flexible display module into the receiving cavity 11. For example, if the distance that the rotating assembly 4 drives the flexible display assembly 3 to move in the direction away from the main body 12 is too long and exceeds a preset distance that can be matched with the cover plate 5, the coil spring can automatically retract and curl up the excess portion of the flexible display assembly 3, and provide a certain stretching tension for the flexible display assembly 3, so that the unfolded surface of the flexible display assembly 3 is flat.

Specifically, as shown in fig. 4, the rotating assembly 4 includes a first rotating shaft 41 and a second rotating shaft 42, a hollow cavity adapted to the second rotating shaft 42 is disposed in the first rotating shaft 41, and the second rotating shaft 42 is located in the hollow cavity and extends out of two ends of the first rotating shaft 41; a first groove 411 and a second groove 412 are arranged on the first rotating shaft 41, one end of the flexible display assembly 3 extending out of the accommodating cavity 11 is connected with the first rotating shaft 41 through the first groove 411, and the cover plate 5 is connected with the second rotating shaft 42 through the second groove 412; the shape and volume of the hollow cavity are the same as those of the second shaft 42, and the depth of the first groove 411 is smaller than that of the second groove 412, so that at least a part of the surface of the second shaft 42 is exposed to the outside through the second groove 412. Of course, the rotating assembly 4 may also have other structures as long as the rotating assembly 4 can be connected to the flexible display assembly 3 and the cover plate 5 respectively, and the cover plate 5 can be turned around the rotating assembly 4 along any angle (0-360 °).

Specifically, the cover plate 5 may be made of rigid glass, and may also be made of other hard materials, which should not be limited in the embodiments of the present invention.

The cover plate 5 can be provided with functional devices such as a keyboard, so that the operability is high, and the diversified requirements of users are met.

As shown in fig. 5, a second flexible display device provided in the embodiment of the present invention is similar to the first flexible display device in fig. 1 in structure, and includes a housing 1, a rolling assembly (not shown), a flexible display assembly 3, a rotating assembly 4, and a cover plate 5; as shown in fig. 6, a structural schematic diagram of a housing 1 of a second flexible display device is different from the first flexible display device in that the sliding portion 13 and the main body portion 12 are both in a comb-tooth structure, and the sliding portion 13 and the main body portion 12 are arranged in a staggered manner to fill up a gap between them, so that the sliding portion 13 and the main body portion 12 can slide relatively.

As shown in fig. 7A, fig. 7B, fig. 7C, fig. 7D, and fig. 7E are schematic structural diagrams of the flexible display device in fig. 4 in the first state, the second state, the third state, the fourth state, and the fifth state, respectively, and the implementation processes, principles, and beneficial effects of the above states are the same as those of the first flexible display device in the first state, the second state, the third state, the fourth state, and the fifth state, which may specifically refer to the above description of fig. 2A, fig. 2B, fig. 2C, fig. 2D, and fig. 2E, and are not repeated herein.

Similarly, the sliding part 13 and the main body 12 may also be of other structures that can slide relative to each other, and are within the protection scope of the present application.

It should be noted that, for clearly explaining the technical solution of the present application, the embodiment of the present invention only describes and explains that the display area when the flexible display device is expanded is 2 times and 3 times of the display area when the flexible display device is not expanded, but the present application is not limited thereto, and the display area when the flexible display device is expanded can be 4 times, 5 times or even more times of the display area when the flexible display device is not expanded, which are all within the protection scope of the present application.

The beneficial effects are that: the embodiment of the utility model provides a flexible display device, including casing, rolling subassembly, flexible display module, runner assembly and apron, drive flexible display module through the runner assembly and be pulled out the extension from accomodating the chamber, the rolling subassembly provides a elasticity pulling force of drawing in for flexible display module, can realize great display area and less display area, the flexible display device that has great display area can be used as the map, the flexible display device that has less display area is convenient for accomodate and carry, suitable scene is diversified; a cover plate is arranged at one end of the flexible display assembly extending out of the containing cavity, the cover plate can be turned over for 360 degrees along the rotating assembly, and the cover plate can be used as a protective shell or a support when the flexible display assembly is not extended; under flexible display module development condition, the apron can overturn to the partial flexible display module back of pulling out in order to use as backup pad or support reinforcing plate, avoids flexible display module to appear pressing to sink, has promoted user's use and has felt.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims

1. A flexible display device, comprising:

the winding assembly is arranged in the accommodating cavity;

2. The flexible display device of claim 1, wherein the housing comprises a main body portion and a sliding portion slidably coupled to the main body portion;

3. The flexible display device according to claim 2, wherein magnetic means are disposed on the rotating assembly and the sliding portion, and the rotating assembly and the sliding portion are attracted by the magnetic means.

4. The flexible display device according to claim 2, wherein a stopper member is provided on the main body portion and the sliding portion, the stopper member being configured to limit a sliding range of the sliding portion with respect to the main body portion.

5. The flexible display device according to any one of claims 2 to 4, wherein the flexible display assembly comprises a first display portion, a second display portion adjacent to the first display portion, and a third display portion adjacent to the second display portion, wherein one end of the first display portion, which is far away from the second display portion, is connected to the rotating assembly;

6. The flexible display device according to claim 5, wherein when the flexible display device is in the first state, the sliding portion overlaps the main body portion, the first display portion is located on the main body portion, and the second display portion and the third display portion both extend into the receiving cavity, so that the cover plate is turned over onto the first display portion around the rotating assembly and covers the first display portion.

7. The flexible display device according to claim 5, wherein when the flexible display device is in the second state, the sliding portion overlaps the main body portion, the first display portion is located on the main body portion, the second display portion and the third display portion both extend into the receiving cavity, and the cover plate is turned around the rotating assembly, so that an included angle formed between a plane where the cover plate is located and a plane where the first display portion is located is a minor angle.

8. The flexible display device according to claim 5, wherein when the flexible display device is in the third state, the sliding portion and the main body portion are overlapped, the rotating assembly drives the flexible display assembly to move in a direction away from the main body portion, so that the second display portion is pulled and extended onto the main body portion from the accommodating cavity, the third display portion is located in the accommodating cavity, and the cover plate is turned over to the back of the first display portion around the rotating assembly.

9. The flexible display device according to claim 5, wherein when the flexible display device is in the fourth state, the rotation component drives the flexible display component to move in a direction away from the main body portion, the sliding portion slides to a side of the main body portion close to the rotation component, the second display portion is pulled from the accommodating cavity to extend onto the sliding portion, the third display portion is located in the accommodating cavity, and the cover plate is turned around the rotation component, so that an included angle formed between a plane where the cover plate is located and a plane where the first display portion is located is a minor angle.

10. The flexible display device according to claim 5, wherein when the flexible display device is in a fifth state, the rotating assembly drives the flexible display assembly to move away from the main body portion, the sliding portion slides to a side of the main body portion close to the rotating assembly, the second display portion is pulled and extended from the receiving cavity onto the sliding portion, the third display portion is pulled and extended from the receiving cavity onto the main body portion, and the cover plate is turned around the rotating assembly to the back of the first display portion.

11. The flexible display device of claim 5, wherein the cover sheet is the same shape and size as the first display portion of the flexible display assembly.

12. The flexible display device of claim 1, wherein the flexible display assembly comprises a flexible screen, a protective layer on the flexible screen, and an adhesive layer between the flexible screen and the protective layer, and the rotating assembly is connected to one end of the protective layer in a clamping manner.

13. The flexible display device of claim 1, wherein the rolling assembly comprises a rolling member and at least one pulley, the rolling member and the pulley are fixed on the housing, and an end of the flexible display assembly, which is away from the rotating assembly, extends into the receiving cavity and is connected with the rolling member by passing through the pulley.

14. The flexible display device of claim 13, wherein the take-up member comprises a coil spring.

15. The flexible display device according to claim 1, wherein the rotating assembly comprises a first rotating shaft and a second rotating shaft, a hollow cavity adapted to the second rotating shaft is disposed in the first rotating shaft, and the second rotating shaft is disposed in the hollow cavity and extends out of two ends of the first rotating shaft;

16. The flexible display device of claim 1, wherein the cover sheet has functional devices disposed thereon.