CN114863812B

CN114863812B - Flexible display device and mobile terminal

Info

Publication number: CN114863812B
Application number: CN202210440229.1A
Authority: CN
Inventors: 韩青; 陈江
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2023-07-07
Anticipated expiration: 2042-04-25
Also published as: CN114863812A

Abstract

The invention relates to the technical field of electronic equipment, and discloses a flexible display device and a mobile terminal. The flexible display device comprises a shell with a first limiting channel and a second limiting channel, and further comprises a flexible display screen, a curling component and a supporting component which are arranged in the shell. The curling component is used for curling or expanding the flexible display screen; the support assembly comprises a plurality of first support pieces and a plurality of second support pieces, wherein the plurality of first support pieces are movably arranged in the first limiting channel one by one and used for supporting the first side edge of the flexible display screen, and the plurality of second support pieces are movably arranged in the second limiting channel one by one and used for supporting the second side edge of the flexible display screen. The invention ensures smooth rolling or unfolding of the flexible display screen, avoids the flexible display screen from being blocked due to the blockage of the supporting piece, forms effective support on the two side edges of the flexible display screen, can avoid damage caused by no support on the two side edges of the flexible display screen, and prolongs the service life of the product.

Description

Flexible display device and mobile terminal

Technical Field

The present invention relates to the field of electronic devices, and in particular, to a flexible display device and a mobile terminal.

Background

The flexible display screen product is bendable and foldable, is convenient to carry and has different shape designs, so that the innovation and the aesthetic property of the product are improved, and the use requirement of multiple users can be met. However, the conventional flexible curled screen is easy to be locked in the process of accommodating and curling, and the side edges on two sides are easy to be damaged in the process of stretching and unfolding.

Disclosure of Invention

Based on the above problems, the invention aims to provide a flexible display device and a mobile terminal, which can enable a flexible display screen to be smoothly stored and curled, and are not easy to be blocked, and the side edges of two sides of the flexible display screen are not easy to damage when the flexible display screen is stretched and unfolded.

In order to achieve the above object, the following technical scheme is provided:

in a first aspect, the present invention provides a flexible display device, including a housing having a first spacing channel and a second spacing channel, and further including a housing disposed within the housing:

a flexible display screen;

a crimping assembly for crimping or expanding the flexible display screen;

the support assembly comprises a plurality of first support pieces and a plurality of second support pieces, wherein the first support pieces are movably arranged in the first limiting channels one by one and used for supporting first sides of the flexible display screen, and the second support pieces are movably arranged in the second limiting channels one by one and used for supporting second sides of the flexible display screen.

As an alternative scheme of the flexible display device provided by the invention, the support assembly further comprises a first elastic piece and a second elastic piece, one end of the first elastic piece is fixed in the shell, the other end of the first elastic piece is connected with the first support piece, one end of the second elastic piece is fixed in the shell, and the other end of the second elastic piece is connected with the second support piece.

As an alternative scheme of the flexible display device provided by the invention, the first limiting channel comprises a first sub-channel and a second sub-channel which are sequentially communicated, the first sub-channel is an S-shaped curved channel, the first elastic piece is positioned in the first sub-channel, and the first supporting piece positioned in the second sub-channel is used for supporting the first side edge of the flexible display screen; the second limiting channel comprises a third sub-channel and a fourth sub-channel which are sequentially communicated, the third sub-channel is an S-shaped bent channel, the second elastic piece is located in the third sub-channel, and the second supporting piece located in the fourth sub-channel is used for supporting the second side edge of the flexible display screen.

As an alternative scheme of the flexible display device provided by the invention, the support assembly further comprises a rotatable first rotating shaft and a rotatable second rotating shaft, the first rotating shaft can be rotated to drive the first support piece to move in the first limiting channel, and the second rotating shaft can be rotated to drive the second support piece to move in the second limiting channel.

As an alternative scheme of the flexible display device provided by the invention, the support assembly further comprises a first flexible piece and a second flexible piece, one end of the first flexible piece is connected with the first support piece, the other end of the first flexible piece is wound on the first rotating shaft, one end of the second flexible piece is connected with the second support piece, and the other end of the second flexible piece is wound on the second rotating shaft.

As an alternative of the flexible display device provided by the invention, the support assembly further comprises a first driving member and a second driving member, wherein the first driving member is used for driving the first rotating shaft to rotate, and the second driving member is used for driving the second rotating shaft to rotate.

As an alternative of the flexible display device provided by the invention, the curling component comprises a rotatable third rotating shaft and a fourth rotating shaft, the third side edge of the flexible display screen is wound on the third rotating shaft, and the fourth side edge of the flexible display screen is wound on the fourth rotating shaft.

As an alternative scheme of the flexible display device provided by the invention, the first rotating shaft and the third rotating shaft synchronously rotate, and the second rotating shaft and the fourth rotating shaft synchronously rotate.

As an alternative scheme of the flexible display device provided by the invention, a first gear is coaxially arranged on the first rotating shaft, a second gear is coaxially arranged on the second rotating shaft, a third gear meshed with the first gear is coaxially arranged on the third rotating shaft, and a fourth gear meshed with the second gear is coaxially arranged on the fourth rotating shaft.

As an alternative scheme of the flexible display device provided by the invention, the support assembly further comprises a third driving piece and a fourth driving piece, wherein the third driving piece is used for driving the third rotating shaft to rotate, and the fourth driving piece is used for driving the fourth rotating shaft to rotate.

As an alternative scheme of the flexible display device provided by the invention, the supporting component further comprises a third flexible piece and a fourth flexible piece, wherein two adjacent first supporting pieces are connected through the third flexible piece, and two adjacent second supporting pieces are connected through the fourth flexible piece.

As an alternative to the flexible display device provided by the present invention, the first support and the second support are balls or sliders.

In a second aspect, the invention further provides a mobile terminal, which comprises the flexible display device.

The beneficial effects of the invention are as follows:

according to the flexible display device provided by the invention, the flexible display screen is curled or unfolded through the curling component, the first support pieces are movably arranged in the first limiting channels one by one, the second support pieces are movably arranged in the second limiting channels one by one, in the process of accommodating, curling or stretching and unfolding the flexible display screen, the first support pieces orderly move in the first limiting channels, meanwhile, the second support pieces orderly move in the second limiting channels, smooth curling or unfolding of the flexible display screen is ensured, the flexible display screen is prevented from being blocked due to the blockage of the support pieces, the first side edges of the flexible display screen are supported by the first support pieces which are regularly arranged, the second side edges of the flexible display screen are effectively supported by the second support pieces which are regularly arranged, the two side edges of the flexible display screen are prevented from being damaged due to no support, the flexible display screen is effectively prevented from deforming, the service life of a product is prolonged, and the service life of a user is improved.

The mobile terminal provided by the invention can be a mobile phone, a tablet personal computer and other wearable equipment, and comprises the flexible display device, so that the curling action and the unfolding action of the flexible display screen can be completed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a flexible display device according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a flexible display device according to an embodiment of the present invention.

In the figure:

1-a housing; 2-a flexible display screen; 3-crimping assembly; 4-a support assembly;

11-a first limiting channel; 12-a second limiting channel; 13-a first barrier structure; 14-a second barrier structure;

111-first subchannel; 112-a second sub-channel;

121-a third sub-channel; 122-fourth subchannel;

21-a first side; 22-a second side;

31-a third rotating shaft; 311-third gear; 32-a fourth rotating shaft; 321-fourth gear;

41-a first support; 42-a second support; 43-a first elastic member; 44-a second elastic member; 45-a first rotating shaft; 451-a first gear; 46-a second spindle; 461-a second gear; 47-a first flexible member; 48-a second flexible member; 49-a third flexible member; 410-fourth flex.

Detailed Description

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the present embodiment provides a flexible display device, which can be applied to various mobile terminals (such as a mobile phone and a tablet computer) with a screen folding requirement. The flexible display device comprises a shell 1 with a first limiting channel 11 and a second limiting channel 12, and further comprises a flexible display screen 2, a curling component 3 and a supporting component 4 which are arranged in the shell 1. The curling component 3 is used for curling or expanding the flexible display screen 2; the support assembly 4 includes a plurality of first support members 41 and a plurality of second support members 42, where the plurality of first support members 41 are movably arranged in the first limiting channel 11 one by one and are used for supporting the first side 21 of the flexible display screen 2, and the plurality of second support members 42 are movably arranged in the second limiting channel 12 one by one and are used for supporting the second side 22 of the flexible display screen 2.

By curling or unfolding the flexible display screen 2 by the curling assembly 3, a plurality of first supporting members 41 are movably arranged in the first limiting channel 11 one by one, and a plurality of second supporting members 42 are movably arranged in the second limiting channel 12 one by one. In the process of accommodating, curling or stretching and unfolding the flexible display screen 2, the first supporting pieces 41 move orderly in the first limiting channel 11, and meanwhile, the second supporting pieces 42 move orderly in the second limiting channel 12, so that smooth curling or unfolding of the flexible display screen 2 is ensured, and the flexible display screen 2 is prevented from being blocked due to blockage of the supporting pieces. The first side 21 of flexible display screen 2 supports through a plurality of first support piece 41 that the rule was arranged, and the second side 22 of flexible display screen 2 supports through a plurality of second support piece 42 that the rule was arranged, forms effective support to two sides of flexible display screen 2, can avoid two sides of flexible display screen 2 to have not supported and damage, prevents effectively that flexible display screen 2 warp, has improved the life of product, has improved user's use experience.

The support assembly 4 may further include a first elastic member 43 and a second elastic member 44, wherein one end of the first elastic member 43 is fixed in the housing 1, the other end is connected with the first support member 41, and one end of the second elastic member 44 is fixed in the housing 1, and the other end is connected with the second support member 42. When the first supporting members 41 move in order in the first limiting channel 11, under the elastic force of the first elastic members 43, the plurality of first supporting members 41 form a supporting body with a certain rigidity, so that the first side 21 of the flexible display screen 2 is effectively supported, and when the flexible display screen 2 is stored and curled, the first elastic members 43 provide tension for the first supporting members 41, so that a reset function is realized. The first elastic member 43 may be connected to one of the plurality of first supporting members 41, so as to avoid affecting the orderly movement of the first supporting members 41. The first elastic member 43 and the plurality of first supporting members 41 can also be used for increasing redundancy and prolonging service life. When the second supporting members 42 move in order in the second limiting channel 12, under the elastic force of the second elastic members 44, the plurality of second supporting members 42 form a supporting body with a certain rigidity, so as to effectively support the second side 22 of the flexible display screen 2, and when the flexible display screen 2 is folded, the second elastic members 44 provide a pulling force for the second supporting members 42, so that a reset function is realized. The second elastic member 44 may be connected to one of the plurality of second supporting members 42 to avoid affecting the orderly movement of the second supporting members 42. The second elastic member 44 can also be simultaneously connected with a plurality of second supporting members 42, thereby increasing redundancy and prolonging service life.

In this embodiment, the first elastic member 43 and the second elastic member 44 may be mechanical springs, which are convenient to obtain materials, small in occupied volume, easy to install, and wide in elastic coefficient range, and can meet the requirements of different elastic forces. In other embodiments, the first elastic member 43 and the second elastic member 44 may also be gas springs, which improves stability and controllability of the elastic force output. The gas spring is an industrial fitting with functions of supporting, buffering, braking, height adjustment, angle adjustment and the like. The gas spring is composed of the following parts: a pressure cylinder, a piston rod, a piston, a sealing guide sleeve, a filler (inert gas or oil-gas mixture), an in-cylinder control element, an out-cylinder control element and a joint. The principle is that inert gas or oil-gas mixture is filled in a closed pressure cylinder to make the pressure in the cavity be several times or tens times higher than the atmospheric pressure, and the piston rod is moved by the pressure difference generated by the fact that the cross section area of the piston rod is smaller than that of the piston. Due to the fundamental differences in principle, gas springs have significant advantages over conventional springs: the speed is relatively slow, the dynamic force is not changed much (generally within 1:1.2), and the control is easy. Unlike mechanical springs, gas springs have a nearly linear elastic curve. The elastic coefficient X of the standard gas spring is between 1.2 and 1.4, and other parameters can be flexibly defined according to requirements and working conditions.

Specifically, the first limiting channel 11 includes a first sub-channel 111 and a second sub-channel 112 that are sequentially communicated, the first sub-channel 111 is an S-shaped curved channel, the first elastic member 43 is located in the first sub-channel 111, and the first supporting member 41 located in the second sub-channel 112 is used for supporting the first side 21 of the flexible display screen 2. A first baffle structure 13 is arranged in the shell 1, and at least two first baffle structures 13 divide the inner cavity of the first part of the shell 1, so that an S-shaped bent first sub-channel 111 is formed. In this embodiment, the first baffle structure 13 may be a straight strip structure, which is convenient for processing and manufacturing. In other embodiments, the first baffle structure 13 may also be a curved strip structure to meet different assembly space requirements. In this embodiment, the first side 21 of the flexible display 2 is planar, and the second sub-channel 112 may be a linear channel. In other embodiments, the first side 21 of the flexible display 2 may be curved, and correspondingly, the second sub-channel 112 may be a curved channel.

Specifically, the second limiting channel 12 includes a third sub-channel 121 and a fourth sub-channel 122 that are sequentially communicated, the third sub-channel 121 is an S-shaped curved channel, the second elastic member 44 is located in the third sub-channel 121, and the second supporting member 42 located in the fourth sub-channel 122 is used for supporting the second side 22 of the flexible display screen 2. A second baffle structure 14 is arranged in the shell 1, and the inner cavity of the second part of the shell 1 is partitioned by at least two second baffle structures 14, so that an S-shaped bent third sub-channel 121 is formed. In this embodiment, the second barrier structure 14 may be a straight strip structure, which is convenient for manufacturing. In other embodiments, the second barrier structure 14 may be a curved bar structure to meet different assembly space requirements. In this embodiment, the second side 22 of the flexible display 2 is planar, and the fourth sub-channel 122 may be a linear channel. In other embodiments, the second side 22 of the flexible display 2 may be curved, and correspondingly, the fourth sub-channel 122 may be a curved channel.

Optionally, the support assembly 4 further includes a rotatable first shaft 45 and a second shaft 46, and rotating the first shaft 45 can drive the first support 41 to move in the first limiting channel 11, and rotating the second shaft 46 can drive the second support 42 to move in the second limiting channel 12. The first rotating shaft 45 and the second rotating shaft 46 are respectively rotatably installed in the shell 1, and the first rotating shaft 45 and the second rotating shaft 46 can respectively rotate around the axes of the first rotating shaft and the second rotating shaft, so that the first supporting piece 41 is respectively driven to move in the first limiting channel 11 and the second supporting piece 42 is respectively driven to move in the second limiting channel 12. Both end portions of the first and second

rotating shafts

45 and 46 may be supported by bearing blocks to reduce frictional resistance when the first and second

rotating shafts

45 and 46 rotate.

Further, the support assembly 4 further includes a first flexible member 47 and a second flexible member 48, one end of the first flexible member 47 is connected to the first support member 41, the other end is wound around the first rotating shaft 45, one end of the second flexible member 48 is connected to the second support member 42, and the other end is wound around the second rotating shaft 46. The first flexible member 47 may be coupled to one of the plurality of first support members 41 to avoid affecting the orderly movement of the first support members 41. The first flexible member 47 can also be simultaneously connected with the plurality of first supporting members 41, thereby increasing redundancy and prolonging service life. The second flexible member 48 may be coupled to one of the plurality of second support members 42 to avoid affecting the orderly movement of the second support members 42. The second flexible member 48 can also be used with a plurality of second support members 42 to increase redundancy and extend service life. The first flexible member 47 and the second flexible member 48 may be made of a wire material that is easily curled, such as copper wire. The first flexible member 47 and the second flexible member 48 may also be made of a non-metallic wire material that is easily crimped, such as nylon wire.

Optionally, the support assembly 4 further includes a first driving member for driving the first shaft 45 to rotate and a second driving member for driving the second shaft 46 to rotate. The first driving member and the second driving member may be servo motors, respectively, to facilitate control of the rotational angle and rotational angular velocity of the first shaft 45 and the second shaft 46. It should be noted that, the first driving member and the second driving member are not necessarily provided, and the acting force generated during the rolling or unfolding process of the flexible display screen 2 may also drive the first rotating shaft 45 and the second rotating shaft 46 to rotate, so as to ensure the synchronicity between the rolling action and the unfolding action of the flexible display screen 2 and the moving directions of the first supporting member 41 and the second supporting member 42. The first driving member and the second driving member can provide auxiliary driving force for the rotation of the first rotating shaft 45 and the second rotating shaft 46, so that redundant driving is formed, and the rotation stability of the first rotating shaft 45 and the second rotating shaft 46 is improved.

Specifically, the curling component 3 includes a third rotating shaft 31 and a fourth rotating shaft 32, the third side of the flexible display screen 2 is wound on the third rotating shaft 31, and the fourth side of the flexible display screen 2 is wound on the fourth rotating shaft 32. The third rotating shaft 31 and the fourth rotating shaft 32 are respectively rotatably installed in the shell 1, and the third rotating shaft 31 and the fourth rotating shaft 32 can respectively rotate around the axes of the third rotating shaft and the fourth rotating shaft, so that the flexible display screen 2 is driven to curl or unfold. The rotation directions of the third rotation shaft 31 and the fourth rotation shaft 32 may be opposite, and the rotation directions of the third rotation shaft 31 and the fourth rotation shaft 32 may be the same, but a certain rotation speed difference is required to avoid the relative rest of the third rotation shaft 31 and the fourth rotation shaft 32. Both end portions of the first and second

rotating shafts

45 and 46 rotate. Note that, the distance between the third rotating shaft 31 and the fourth rotating shaft 32 may also change as the flexible display screen 2 curls or expands, so as to change the area of the visual display area. The change of the distance between the third rotation shaft 31 and the fourth rotation shaft 32 can be achieved by the relative movement of the two parts of the housing.

To ensure synchronicity of the crimping and unfolding actions of the flexible display screen 2 and the moving directions of the first and second supporting

members

41 and 42, the first rotating shaft 45 and the third rotating shaft 31 are optionally rotated synchronously, and the second rotating shaft 46 and the fourth rotating shaft 32 are rotated synchronously.

In this embodiment, the first gear 451 is coaxially disposed on the first rotating shaft 45, the second gear 461 is coaxially disposed on the second rotating shaft 46, the third gear 311 engaged with the first gear 451 is coaxially disposed on the third rotating shaft 31, and the fourth gear 321 engaged with the second gear 461 is coaxially disposed on the fourth rotating shaft 32. The synchronous rotation of the first rotating shaft 45 and the third rotating shaft 31 and the synchronous rotation of the second rotating shaft 46 and the fourth rotating shaft 32 adopt gear transmission, so that the transmission is accurate, the efficiency is high, the structure is compact, the work is reliable, and the service life is long. In other embodiments, the synchronous rotation of the first shaft 45 and the third shaft 31 and the synchronous rotation of the second shaft 46 and the fourth shaft 32 may also be achieved by synchronous belts and synchronous wheels.

Optionally, the support assembly 4 further includes a third driving member for driving the third rotating shaft 31 to rotate, and a fourth driving member for driving the fourth rotating shaft 32 to rotate. The automatic rotation of the third rotating shaft 31 and the fourth rotating shaft 32, which are realized through the third driving piece and the fourth driving piece, is convenient for program control, so as to realize the curling action and the unfolding action of the flexible display screen 2 by matching with gesture instructions or key signals of users, and avoid manual pulling to damage the flexible display screen 2.

In order to avoid energy consumption caused by excessively strong collision between two adjacent first supporting members 41 and two adjacent second supporting members 42, the supporting assembly 4 further comprises a third flexible member 49 and a fourth flexible member 410, wherein the two adjacent first supporting members 41 are connected through the third flexible member 49, and the two adjacent second supporting members 42 are connected through the fourth flexible member 410. The third flexible member 49 and the fourth flexible member 410 may further have a certain elasticity, absorb a part of the impact force, and avoid generating larger mechanical collision noise to affect the user experience.

In the present embodiment, the first support 41 and the second support 42 may be balls, reducing frictional resistance, and accordingly, the cross-sections of the first limiting passage 11 and the second limiting passage 12 may be circular. In other embodiments, the first supporting member 41 and the second supporting member 42 may also be sliders, and accordingly, the cross sections of the first limiting channel 11 and the second limiting channel 12 may be rectangular, which is convenient for manufacturing and processing.

Note that, the flexible display screen 2 refers to a flexible OLED (Organic Light-Emitting Diode). The OLED is thin and can be mounted on flexible materials such as plastic or metal foil. Instead of glass, plastic makes the display screen more durable and lighter. The flexible OLED panel is concave from top to bottom, and the bending radius can reach 700 millimeters. The OLED adopts a plastic substrate instead of a common glass substrate, and a protective film is stuck on the back surface of the panel by means of a thin film packaging technology, so that the panel becomes bendable and is not easy to break.

The OLED device is composed of a substrate, a cathode, an anode, a Hole Injection Layer (HIL), an Electron Injection Layer (EIL), a Hole Transport Layer (HTL), an Electron Transport Layer (ETL), an Electron Blocking Layer (EBL), a Hole Blocking Layer (HBL), an emission layer (EML), and the like. Wherein, the base plate is the basis of the whole device, all functional layers need to be evaporated on the base plate of the device; glass is typically used as the substrate for the device, but if a flexible OLED device is desired to be fabricated, other materials such as plastics and the like are required as the substrate for the device. The anode is connected with the positive electrode of the externally applied driving voltage of the device, holes in the anode can move towards the light-emitting layer in the device under the drive of the externally applied driving voltage, and the anode needs to have certain light transmittance when the device works, so that light emitted from the inside of the device can be observed by the outside; the most commonly used material for the anode is ITO. The hole injection layer can modify the anode of the device and can enable holes from the anode to be smoothly injected into the hole transport layer; the hole transport layer is responsible for transporting holes to the light emitting layer; the electron blocking layer can block electrons from the cathode at the interface of the light emitting layer of the device, so that the concentration of electrons at the interface of the light emitting layer of the device is increased; the light-emitting layer is a place where the device electrons and holes are recombined to form excitons and then the excitons de-excite light; the hole blocking layer can block holes from the anode at the interface of the device light-emitting layer, so that the probability of recombination of electrons and holes at the interface of the device light-emitting layer is improved, and the light-emitting efficiency of the device is increased; the electron transport layer is responsible for transporting electrons from the cathode into the light emitting layer of the device; the electron injection layer plays a role in modifying the cathode and transmitting electrons to the electron transmission layer; electrons in the cathode move toward the light-emitting layer of the device under the drive of an applied driving voltage of the device, and then recombine with holes from the anode at the light-emitting layer.

Compared with the traditional screen, the flexible screen has obvious advantages, is lighter in size and lighter in power consumption, is lower than the original device, is favorable for improving the endurance of equipment, and is also higher than the traditional screen greatly in durability based on the characteristics of being bendable and good in flexibility, so that the probability of accidental damage of the equipment is reduced. The screen of the folding screen is required to be folded for 20 ten thousand times and is a flexible screen with higher flexibility requirement, and the structure of the screen also needs to be designed independently.

According to the flexible display device provided by the embodiment, the flexible display screen 2 is curled or unfolded through the curling component 3, the first supporting pieces 41 are movably arranged in the first limiting channels 11 one by one, the second supporting pieces 42 are movably arranged in the second limiting channels 12 one by one, the flexible display screen 2 is stored, curled or stretched and unfolded, the first supporting pieces 41 are orderly moved in the first limiting channels 11, meanwhile, the second supporting pieces 42 are orderly moved in the second limiting channels 12, smooth curling or unfolding of the flexible display screen 2 is guaranteed, the flexible display screen 2 is prevented from being blocked, the first side edges 21 of the flexible display screen 2 are supported by the first supporting pieces 41 which are regularly arranged, the second side edges 22 of the flexible display screen 2 are effectively supported by the second supporting pieces 42 which are regularly arranged, the two side edges of the flexible display screen 2 can be prevented from being damaged due to no support, deformation of the flexible display screen 2 is effectively prevented, the service life of a user is prolonged, and the service life of the product is prolonged.

The embodiment also provides a mobile terminal, which can be a mobile phone, a tablet computer and other wearable devices. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction.

The mobile terminal comprises the flexible display device, the curling action and the unfolding action of the flexible display screen 2 can be completed, the product is novel, the identification degree is high, the applicable crowd is wide, the applicable scene is rich, the screen curling action and the unfolding action are smooth and natural, the operation is convenient, the screen is not easy to damage, the service life is long, and the use experience is good.

In the process of accommodating and curling or stretching and unfolding the flexible display screen 2, the first supporting pieces 41 orderly move in the first limiting channel 11, meanwhile, the second supporting pieces 42 orderly move in the second limiting channel 12, smooth curling or unfolding of the flexible display screen 2 is guaranteed, the phenomenon that the flexible display screen 2 is blocked due to blockage of the supporting pieces is avoided, the first side edge 21 of the flexible display screen 2 is supported by the first supporting pieces 41 which are regularly distributed, the second side edge 22 of the flexible display screen 2 is supported by the second supporting pieces 42 which are regularly distributed, effective supports are formed on two side edges of the flexible display screen 2, damage to the two side edges of the flexible display screen 2 due to unsupported sides is avoided, deformation of the flexible display screen 2 is effectively prevented, the service life of a product is prolonged, and the use experience of a user is improved.

In hardware systems, mobile terminals often include a central processing unit, a memory, an input unit, and an output unit, that is, the mobile terminals are microcomputer devices having communication functions. In addition, the mobile terminal may have various input modes such as a keyboard, a mouse, a touch screen, a microphone, a camera, and the like, and may perform adjustment input as needed. Meanwhile, the mobile terminal often has various output modes, such as a receiver, a display screen and the like, and can be adjusted according to the needs.

In a software architecture, the Mobile terminal must be provided with an operating system, such as Windows Mobile, symbian, palm, android, iOS, etc. Meanwhile, the operating systems are more and more open, and personalized application software developed based on the open operating system platforms is layered endlessly, such as an address book, a calendar, a notepad, a calculator, various games and the like, so that the demands of personalized users are met to a great extent.

In terms of communication capability, the mobile terminal has flexible access mode and high-bandwidth communication performance, and can automatically adjust the selected communication mode according to the selected service and the environment, thereby facilitating the use of users. The mobile terminal can support GSM, WCDMA, CDMA2000, TDSCDMA, wi-Fi, wiMAX and the like, thereby being suitable for networks with various systems, supporting not only voice service but also various wireless data service.

In terms of function use, the mobile terminal is more focused on humanization, individualization and multifunctionality. With the development of computer technology, the mobile terminal enters a mode of 'centering on people' from a mode of 'centering on equipment', and embedded computing, control technology, artificial intelligence technology, biological authentication technology and the like are integrated, so that the aim of taking the person as a root is fully reflected. Due to the development of software technology, the mobile terminal can adjust the settings according to personal demands, so that the mobile terminal is more personalized. Meanwhile, the mobile terminal integrates a plurality of software and hardware, and the functions are more and more powerful.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. The utility model provides a flexible display device which characterized in that, including the casing that has first spacing passageway and second spacing passageway, still including set up in the casing:

a flexible display screen;

a crimping assembly for crimping or expanding the flexible display screen;

the support assembly comprises a plurality of first support pieces and a plurality of second support pieces, wherein the first support pieces are movably arranged in the first limiting channel one by one and used for supporting the first side edge of the flexible display screen, and the second support pieces are movably arranged in the second limiting channel one by one and used for supporting the second side edge of the flexible display screen;

the support assembly further comprises a first rotating shaft and a second rotating shaft which are rotatable, the first rotating shaft can drive the first support piece to move in the first limiting channel, and the second rotating shaft can drive the second support piece to move in the second limiting channel.

2. The flexible display device of claim 1, wherein the support assembly further comprises a first elastic member and a second elastic member, one end of the first elastic member is fixed in the housing, the other end is connected with the first support member, one end of the second elastic member is fixed in the housing, and the other end is connected with the second support member.

3. The flexible display device according to claim 2, wherein the first limiting channel comprises a first sub-channel and a second sub-channel which are sequentially communicated, the first sub-channel is an S-shaped curved channel, the first elastic element is located in the first sub-channel, and the first supporting element located in the second sub-channel is used for supporting a first side of the flexible display screen; the second limiting channel comprises a third sub-channel and a fourth sub-channel which are sequentially communicated, the third sub-channel is an S-shaped bent channel, the second elastic piece is located in the third sub-channel, and the second supporting piece located in the fourth sub-channel is used for supporting the second side edge of the flexible display screen.

4. The flexible display device of claim 1, wherein the support assembly further comprises a first flexible member and a second flexible member, one end of the first flexible member is connected to the first support member, the other end is wound around the first rotating shaft, one end of the second flexible member is connected to the second support member, and the other end is wound around the second rotating shaft.

5. A flexible display device as recited in claim 1, wherein the support assembly further comprises a first drive member for driving the first shaft in rotation and a second drive member for driving the second shaft in rotation.

6. The flexible display device of claim 1, wherein the crimping assembly includes a third rotatable shaft and a fourth rotatable shaft, a third side of the flexible display screen being wrapped around the third shaft, a fourth side of the flexible display screen being wrapped around the fourth shaft.

7. The flexible display device of claim 6, wherein the first shaft rotates in synchronization with the third shaft and the second shaft rotates in synchronization with the fourth shaft.

8. The flexible display device according to claim 7, wherein a first gear is coaxially disposed on the first rotating shaft, a second gear is coaxially disposed on the second rotating shaft, a third gear engaged with the first gear is coaxially disposed on the third rotating shaft, and a fourth gear engaged with the second gear is coaxially disposed on the fourth rotating shaft.

9. A flexible display device as recited in claim 6, wherein the support assembly further comprises a third drive member for driving the third shaft in rotation and a fourth drive member for driving the fourth shaft in rotation.

10. A flexible display device as claimed in any one of claims 1 to 9, wherein the support assembly further comprises a third flexible member and a fourth flexible member, adjacent two of the first support members being connected by the third flexible member and adjacent two of the second support members being connected by the fourth flexible member.

11. A flexible display device according to any one of claims 1 to 9, wherein the first and second supports are balls or slides.

12. A mobile terminal comprising a flexible display device as claimed in any one of claims 1-11.