CN112365803B

CN112365803B - Flexible display device

Info

Publication number: CN112365803B
Application number: CN202011338849.1A
Authority: CN
Inventors: 张晓音
Original assignee: Hubei Changjiang New Display Industry Innovation Center Co Ltd
Current assignee: Hubei Changjiang New Display Industry Innovation Center Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2022-05-17
Anticipated expiration: 2040-11-25
Also published as: CN112365803A

Abstract

The invention discloses a flexible display device, which comprises a flexible display panel and a deformation device, wherein the flexible display panel and the deformation device are oppositely arranged; the deformation device comprises an air bag and a gas-liquid conversion device; the gas-liquid conversion device comprises a gas storage box subassembly and a liquid storage box; the air bag comprises a first air bag interface and a second air bag interface, the first air bag interface is connected with a liquid outlet of the gas-liquid conversion device and is used for receiving first liquid in the liquid storage box to enable the air bag to generate first deformation; the second gasbag interface is connected with gas-liquid conversion device's air inlet, and first liquid in the gasbag is heated and is converted into first gas, arranges first gas to the gas receiver subassembly through the air inlet in, and the gas receiver subassembly converts first gas into first liquid and arrives the stock solution box side by side, and the gasbag receives stock solution box exhaust first liquid and maintains first deformation. The invention realizes the conversion between the curved surface display and the plane display of the flexible display panel by using the deformation device and improves the heat dissipation performance.

Description

Flexible display device

Technical Field

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

Background

With the development of display technology, flexible display devices have increasingly been used. The current flexible screen is mostly fixed radian and shows, fixes the flexible screen in the structure of fixed radian promptly for show content. However, the fixed arc will not change the application, i.e. in most cases, the screen display should be suitable for flat display, i.e. horizontal display, rather than arc. And fixed radian both can't compromise two kinds of demands of level and radian, can't satisfy promptly can the level display, but radian again shows to can't deal with different scenes, reduced display effect, influenced user experience.

Disclosure of Invention

In view of this, the present invention provides a flexible display device, which utilizes a deformation device to realize conversion between curved display and planar display of a flexible display panel, and to improve heat dissipation performance.

The invention provides a flexible display device, which comprises a flexible display panel and a deformation device which are oppositely arranged, wherein,

the flexible display panel comprises a light-emitting surface and a backlight surface which are oppositely arranged, and the deformation device is positioned on one side of the backlight surface, which is far away from the light-emitting surface;

the deformation device comprises:

the air bag and the gas-liquid conversion device;

the gas-liquid conversion device comprises a gas storage box subassembly and a liquid storage box;

the airbag comprises a first airbag interface and a second airbag interface,

the first air bag interface is connected with a liquid outlet of the gas-liquid conversion device and used for receiving first liquid in the liquid storage box to enable the air bag to generate first deformation;

the second air bag interface is connected with an air inlet of the gas-liquid conversion device, the first liquid in the air bag is heated and converted into the first gas, the first gas is discharged into the gas storage box subassembly through the air inlet, the gas storage box subassembly converts the first gas into the first liquid and discharges the first liquid to the liquid storage box, and the air bag receives the first liquid discharged from the liquid storage box and maintains the first deformation.

Compared with the prior art, the flexible display device provided by the invention has the advantages that the first liquid in the gas-liquid conversion device is filled into the air bag to be subjected to the first deformation so as to drive the flexible display panel to deform and present a certain radian, meanwhile, the first liquid in the air bag can be vaporized by the heat of the flexible display panel, the heat is taken away by the phase change effect when the first liquid is vaporized into the first gas, the first gas is condensed into the first liquid and returns to the liquid storage box again, and the heat radiation performance of the flexible display device can be improved when the conversion between curved surface display and plane display of the flexible display panel is realized.

Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

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

Fig. 1 is a schematic structural diagram of a flexible display device in the prior art;

fig. 2 is an exploded view of a flexible display device according to the present invention;

FIG. 3 is a front view of the gas-liquid conversion device of FIG. 2;

FIG. 4 is an exploded view of the gas-to-liquid conversion device of FIG. 2;

FIG. 5 is an exploded view of the cartridge subassembly of FIG. 2;

FIG. 6 is a schematic view of the deformation apparatus shown in FIG. 2;

FIG. 7 is a schematic view of the base and sidewalls of FIG. 6;

FIG. 8 is an exploded view of the gas-liquid conversion device of FIG. 6;

fig. 9 is an exploded view of still another flexible display device according to the present invention;

fig. 10 is a schematic structural diagram of a flexible display device according to the present invention;

fig. 11 is an exploded view of the flexible display device of fig. 10;

fig. 12 is a top view of the flexible display device of fig. 10;

fig. 13 is still another exploded view of the flexible display device of fig. 10.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a flexible display device in the prior art. As shown in fig. 1, the flexible display device 100 includes a display panel 01, and the flexible display panel 01 has a fixed bending angle, but the fixed bending angle may not change the application, that is, in most cases, the display device should be suitable for flat display, i.e. horizontal display, rather than arc. And the display device of fixed angle of buckling can't compromise two kinds of demands of level and radian, can't satisfy promptly can the level display, but radian shows again to can't deal with different scenes, reduced display effect, influenced user experience.

In order to solve the above technical problem, the present invention provides a flexible display device. With respect to the embodiments of the flexible display device provided by the present invention, the following detailed description will be given.

In this embodiment, please refer to fig. 2 and fig. 3, in which fig. 2 is an exploded view of a flexible display device according to the present invention, and fig. 3 is a front view of a gas-liquid conversion device in fig. 2. The flexible display device 200 in this embodiment includes a flexible display panel 1 and a deformation device 2 that are oppositely disposed, where the flexible display panel 1 includes a light-emitting surface Q and a backlight surface W that are oppositely disposed, and the deformation device 2 is located on a side of the backlight surface W away from the light-emitting surface Q; the deformation device 2 includes: an air bag 21 and a gas-liquid conversion device 22; the gas-liquid conversion device 22 comprises a gas storage box subassembly 221 and a liquid storage box 222; the air bag 21 comprises a first air bag interface 211 and a second air bag interface 212, the first air bag interface 211 is connected with a liquid outlet 223 of the gas-liquid conversion device 22 and is used for receiving the first liquid in the liquid storage box 222 to enable the air bag 21 to generate a first deformation; the second airbag interface 212 is connected with the gas inlet 224 of the gas-liquid conversion device 22, the first liquid in the airbag 21 is heated and converted into the first gas, the first gas is discharged into the gas reservoir sub-assembly 221 through the gas inlet 224, the gas reservoir sub-assembly 221 converts the first gas into the first liquid and discharges the first liquid to the liquid reservoir 222, and the first deformation is maintained by the first liquid discharged from the liquid reservoir 222 received by the airbag 21.

Optionally, in this embodiment, the airbag 21 is sandwiched between the flexible display panel 1 and the gas-liquid conversion device 22, and an orthographic projection of the airbag 21 on the plane of the flexible display panel 1 may be a rectangle or another shape corresponding to the flexible display panel 1, and the shape of the airbag 21 is not specifically required, and may be specifically set according to an actual situation; further, the airbag 21 may include a plurality of sub-airbags K, and fig. 2 only illustrates that the airbag 21 includes 3 sub-airbags K along the first direction X, and adjacent sub-airbags K may be communicated with each other through a connecting hole, so that the first liquid may flow in the sub-airbags K. Wherein the flexible display panel 1 refers to the flexible display panel 1 in a flattened state,

specifically, the material of the airbag 21 may be rubber or other elastic materials, and since rubber has good ductility, the airbag can support deformation.

Optionally, the first liquid may be water or other liquid with a low boiling point, and since heat is generated when the flexible display panel 1 operates, at least a part of the first liquid is vaporized into the first gas.

It can be understood that, the flexible display device 200 that this application provided, through deformation device 2 through with in the gas-liquid conversion device 22 first liquid in the liquid storage box loop through liquid outlet and first gasbag interface 211 fill in gasbag 21 make it take place first deformation drive flexible display panel 1 take place deformation and present certain radian, the heat of flexible display panel 1 board can make the first liquid vaporization in the gasbag 21 simultaneously, phase transition when being first gas through first liquid vaporization takes away the heat, first gas gets into in the gas receiver subassembly 221 and changes into first liquid and gets back to the liquid storage box 22 again through gas inlet 224 of gas-liquid conversion device 22, first liquid can realize recycling in the deformation device, can also improve flexible display device 200's heat dispersion. And the air bag 21 releases the first gas to the gas-liquid conversion device 22 while filling the first liquid, so that the shape of the air bag 21 can be kept from being influenced by the vaporization of the liquid, but the invention is not limited to the air bag, and the air bag has different forms in different stages, namely the air bag can be filled with only the first liquid, or only the first gas can be released to the gas-liquid conversion device 22, and the air bag can be specifically arranged according to actual conditions. Therefore, the flexible display device provided by the application can meet the requirements of two use forms of a horizontal product and a radian product, is flexible and changeable, has strong applicability, and can be used for improving user experience.

In some alternative embodiments, and referring to fig. 2, 4 and 5, fig. 4 is an exploded view of a gas-to-liquid conversion device of fig. 2, and fig. 5 is an exploded view of a cartridge subassembly of fig. 2. In the flexible display device 200 provided in the present embodiment, the gas cartridge sub-assembly 221 includes a gas cartridge 31 and a condensation cartridge 32; the gas storage box 31 comprises a first gas storage box interface 311 and a second gas storage box interface 312, the first gas storage box interface 311 is the gas inlet 224 of the gas-liquid conversion device 22 and is connected with the second air bag interface 212 of the air bag 21, and the second gas storage box interface 312 is connected with the condensation box 32; the condensation box 32 comprises a first condensation box interface 321 and a second condensation box interface 322, the first condensation box interface 321 is connected with the second air storage box interface 312 of the air storage box 31, and the second condensation box interface 322 is connected with the liquid storage box 222.

It can be understood that the gas cartridge sub-assembly 221 includes the gas cartridge 31 and the condensation cartridge 32, the first gas vaporized from the first liquid in the air bag 21 is stored in the gas cartridge 31, and then the first gas enters the condensation cartridge 32 and is liquefied into the first liquid, and flows into the liquid cartridge again, so that the first liquid in the deformation device can be recycled. Meanwhile, the rate of the first gas liquefied by the condensation box 32 is limited, and the capacity of the condensation box 32 is limited, so that the gas storage box 31 can be used for storing the first gas, so that the first gas generated by the vaporization of the first liquid in the airbag 21 can be discharged out of the airbag in time, and the first deformation of the airbag is maintained; simultaneously, the heat is taken away through the phase change effect when the first liquid is vaporized into the first gas, the first gas enters the gas storage box subassembly through the gas inlet of the gas-liquid conversion device and is converted into the first liquid to return to the liquid storage box again, the first liquid in the deformation device can be recycled, the recycled first liquid is a phase-change energy-saving mode, the first liquid is vaporized into the first gas through continuous change of the first form, the first gas-liquid is condensed into the first liquid, the flexible display device can be used for achieving the purpose that the same product can meet the use forms of level and radian, and the heat dissipation performance of the flexible display device can be improved. The connection mode of the gas storage box 31 and the condensation box 32 is not required, the connection mode of the gas storage box 31 and the air bag 21 is not required, the connection mode of the condensation box 32 and the liquid storage box 222 is not required, the connection mode can be set according to practical conditions, as long as the first gas in the air bag 21 can be input into the gas storage box 31, the gas storage box 31 can store the first gas and transmit the first gas to the condensation box 32, the first liquid liquefied by the first gas is input into the liquid storage box 222 by the condensation box 32, and the detailed description is omitted.

In some optional embodiments, as shown in fig. 2 and fig. 3, the flexible display device 200 provided in this embodiment further includes a plurality of detecting units 4 and a driving unit 5, where the detecting units 4 are configured to detect the number or positions of viewers watching the flexible display panel 1 and transmit signals to the driving unit 5; the driving unit 5 is used for driving the shape changing device 2. Wherein the signal refers to a signal corresponding to the number or position of viewers.

Optionally, the flexible display panel 1 may include a display area and a non-display area surrounding the display area, and the detection unit 4 may be located in the non-display area, so that the number and the position of viewers in front of the flexible display panel 1 may be monitored at any time, the display area of the flexible display panel 1 may be prevented from being occupied, and the problem of affecting the aperture ratio of the flexible display panel 1 is avoided. The position of the detection unit 4 is not specifically required, the detection unit can be set according to actual conditions, the structure of the detection unit 4 is not specifically required, the number and the position of the viewers in front of the flexible display panel 1 can be monitored in real time, and the description is omitted below.

Optionally, the driving unit 5 may be a pump or other devices that can be used to drive the deformation device, and the present invention does not require a specific structure of the driving unit 5, and may be set according to an actual situation, which is not described in detail below.

It can be understood that, when the number of viewers of the flexible display device 200 is small and the flexible display device 200 is located at the corresponding position of the center of the flexible display device 200, the flexible display device 200 can maintain the flat state to make the viewers feel good. However, when the number of viewers of the flexible display device 200 is large or the flexible display device 200 is located at an edge position, the display effect of the flexible display device 200 is affected due to a large viewing angle, and the experience of the viewers is reduced. Then, the number or the position of the viewers watching the flexible display panel 1 is detected in real time by using the detection unit 4, and the signals are transmitted to the driving unit 5; the driving unit 5 is used for driving the shape changing device 2. That is, when the detecting unit 4 detects that the number of viewers is large or the flexible display device 200 is located at the edge position, and transmits a signal to the driving unit 5, the driving unit 5 starts to operate, and the first liquid is introduced into the air bag 21 from the liquid storage box 222, so that the flexible display panel 1 is pushed to move forward, and the screen presents a certain radian. Here, "forward" may be understood as the flexible display panel 1 moving away from the air bag 21, so that the screen takes on a certain arc.

In some alternative embodiments, as shown in fig. 2 and fig. 3 with continued reference, the driving unit 5 of the flexible display device 200 provided in this embodiment drives the first air bag interface 211 to receive the first liquid in the liquid storage box 222 according to the signal of the detecting unit 4, so as to generate a first deformation of the air bag 21

Or, the first air bag interface 211 is driven to transfer the first liquid in the air bag 21 to the liquid storage box 222, so that the first deformation of the air bag 21 is restored to the initial state

It can be understood that when the detecting unit 4 detects that the number of viewers is large or the flexible display device 200 is located at the edge position, and transmits a signal to the driving unit 5, the driving unit 5 starts to operate, the first liquid is introduced into the air bag 21 from the liquid storage box 222, so as to push the flexible display panel to move forward, and the screen presents a certain arc. When the detecting unit 4 detects that the number of viewers is small and the flexible display device 200 is located at the corresponding position in the center, and transmits the signal to the driving unit 5, the driving unit 5 reversely draws the first liquid in the air bag 21 and guides the first liquid into the liquid storage box 222, and the flexible display panel gradually returns to the initial state, i.e. the flat state due to the non-pressing force. The same product can meet two use forms of level and radian, and is flexible and changeable, high in applicability and capable of increasing user experience.

In some alternative embodiments, as shown in fig. 2, 6 and 7, fig. 6 is a schematic structural view of the deformation device in fig. 2, and fig. 7 is a schematic structural view of the base and the sidewall in fig. 6. The deformation device 22 in the flexible display device 200 provided in this embodiment further includes a bottom plate 23, the bottom plate 23 is sandwiched between the air bag 21 and the gas-liquid conversion device 22, and a plane of the bottom plate 23 is parallel to a plane of the flexible display panel 1; the deformation device 2 further comprises a side wall 24, wherein the side wall 24 is positioned at the edge of the bottom plate 23, and the side wall 24 is intersected with the bottom plate 23; the side wall 24 includes a first side wall 241 protruding in a direction pointing to the light-emitting surface Q along the backlight surface W, the first side wall 241 and the bottom plate 23 form a first accommodation area for accommodating the airbag 21; and/or the side wall 24 includes a second side wall 242 protruding in a direction pointing to the backlight surface W along the light emitting surface Q, and the second side wall 242 and the bottom plate 23 form a second accommodating area for accommodating the gas-liquid conversion device 22.

The plane of the bottom plate 23 is parallel to the plane of the flexible display panel 1, which means that the plane of the bottom plate 23 is parallel to the initial state of the flexible display panel 1, i.e. the flat state.

It will be appreciated that the first side wall 241 and the bottom panel 23 form a first receiving area for receiving the airbag 21; and/or the second side wall 242 forms a second accommodating area with the bottom plate 23, and the second accommodating area is used for accommodating the gas-liquid conversion device 22, that is, the bottom plate 23 is used for forming an accommodating area with the side wall, and is used for accommodating the airbag 21 and the gas-liquid conversion device 22, so that the deformation device 2 can be fixed. In the present invention, the connection relationship between the base 23 and the sidewall 24 is not specifically required, and may be welded or detachably connected, so long as it is ensured that the deformation device 2 can be fixed and the airbag 21 and the gas-liquid conversion device 22 can be accommodated, which will not be described in detail below.

In some optional embodiments, as shown in fig. 6 and fig. 7, the sidewall 24 of the flexible display device 200 provided in this embodiment includes a limiting plate 243, a plane of the limiting plate 243 is perpendicular to a plane of the flexible display panel 1, and a plane of the limiting plate 243 is perpendicular to a plane of the sidewall 24, where the limiting plate 243 is used to fix the gas-liquid conversion device 22.

It can be understood that the plane of the limiting plate 243 is perpendicular to the plane of the flexible display panel 1, which means perpendicular to the flexible display panel 1 in the flat state. Optionally, the limiting plate 243 may include a limiting hole E, and meanwhile, a limiting hole is also formed in a position of the gas-liquid conversion device 22 corresponding to the side wall, so that the limiting hole may be inserted through a limiting bolt to prevent the gas-liquid conversion device 22 from shaking along the extending direction of the side wall 24, that is, the limiting hole may be further used for fixing the gas-liquid conversion device 22. Wherein, spacing hole E can be the bolt hole, and then spacing bolt can be the bolt. In this embodiment, only the positioning hole E is illustrated as an example, and the limiting plate 243 may have other structures as long as it can fix the gas-liquid conversion device 22, which will not be described in detail below.

In some alternative embodiments, with continuing reference to fig. 6 and 7, the deformation device 2 in the flexible display device 200 further includes a bottom plate 23 sandwiched between the air bag 21 and the air-liquid conversion device 22, and a plane of the bottom plate 23 is parallel to a plane of the flexible display panel 1; the bottom plate 23 includes an engaging member 244 on a side away from the light emitting surface Q, and the engaging member 244 is used for fixing the gas-liquid conversion device 22.

It can be understood that the engaging member 244 may be a supporting pillar or other device for engaging and fixing the gas-liquid conversion device, and the structure of the engaging member 244 is not specifically required in the present invention, and may be set according to actual situations, which is not described in detail below.

In some alternative embodiments, with continued reference to fig. 6 and fig. 7, the engaging member 244 in the flexible display device 200 provided in this embodiment includes a plurality of first protrusions M, and the first protrusions M are disposed around an outline of an orthographic projection of the gas-liquid conversion device 22 on the plane of the flexible display panel 1; or the arrangement path of the plurality of first protrusions M is arranged along the profile of the orthographic projection of the gas-liquid conversion device on the plane where the flexible display panel 1 is located.

Optionally, the first protrusion M may be disposed in a hollow manner, and further, the first protrusion may be disposed around an outline of an orthographic projection of the gas-liquid conversion device 22 on the plane of the flexible display panel 1, which is to be understood that the first protrusion M may accommodate the gas-liquid conversion device 22 therein; or the first protrusion M may be solid, and a side of the first protrusion M away from the bottom plate 23 is provided with a thread or other structures for fixing the first protrusion 23 in a subsequent structure, and at this time, the arrangement path of the plurality of first protrusions M is set along the profile of the orthographic projection of the gas-liquid conversion device on the plane where the flexible display panel 1 is located, that is, the plurality of first protrusions M are set around the gas-liquid conversion device 22, so that the gas-liquid conversion device 22 may be fixed by the plurality of first protrusions M. That is, the gas-liquid conversion device 22 may be fixed in the deformation device 2 by using the first protrusion M, and the structure and arrangement of the first protrusion M are not specifically required in the present invention, and may be set according to actual situations, which is not described in detail below.

In some alternative embodiments, as shown in fig. 6 and fig. 7, the deformation device 2 in the flexible display device 200 further includes a bottom plate 23, the bottom plate 23 is sandwiched between the air bag 21 and the gas-liquid conversion device 22, and a plane of the bottom plate 23 is parallel to a plane of the flexible display panel 1; the bottom plate 23 includes a plurality of connection holes 245, the connection holes 245 are used for fixing the connection pipe 225 in the gas-liquid conversion device 22, the connection pipe 225 includes a first connection pipe 33, the first connection pipe 33 includes a first pipe orifice I and a second pipe orifice J, the first pipe orifice I is a liquid outlet 223 of the gas-liquid conversion device 22, and the second pipe orifice J is a first air bag interface 211 of the air bag 21.

It can be understood that the connection hole 245 on the bottom plate 23 can be engaged with the first connection tube 33, and further can be used for fixing the first connection tube 33, so that the first connection tube 33 can be stably and respectively connected with the liquid storage box 222 and the air bag 21 in the gas-liquid conversion device 22, so that the first liquid in the liquid storage box 222 is input into the air bag 21, or the first liquid in the air bag 21 can flow into the liquid storage box 22, and the conversion between the curved display and the flat display of the flexible display panel by using the deformation device is realized.

In some alternative embodiments, and continuing with fig. 6 and 8, fig. 8 is an exploded view of the gas-liquid conversion device of fig. 6. The connecting pipe 225 provided by this embodiment includes the second connecting pipe 34, the second connecting pipe 34 includes a third pipe orifice L and a fourth pipe orifice K, the third pipe orifice L is a second condensation box interface (not shown in the figure) of the condensation box 32, and the fourth pipe orifice K is an inlet (not shown in the figure) of the liquid storage box 22.

It can be understood that, by using the second connection pipe 34, the condensation box 32 is communicated with the liquid storage box 22, so that the first gas in the condensation box 22 is converted into the first liquid and then flows into the liquid storage box again, thereby realizing the recycling of the first liquid in the liquid storage box 22. Further still guarantee that the gasbag releases first gas to the gas-liquid conversion equipment when filling into first liquid, keep the gasbag shape not influenced by liquid vaporization, improve the stability of deformation device 2.

In some alternative embodiments, as shown in fig. 9, fig. 9 is an exploded view of another flexible display device provided by the present invention. The flexible display panel 1 of the flexible display device 200 provided in this embodiment includes a hinge assembly 11, the hinge assembly 11 is located between the flexible display panel 1 and the airbag 21, and the hinge assembly 11 is connected to the airbag 21 and is configured to convert the first deformation of the airbag 21 into a deformation in a fixed direction, so that the flexible display panel 1 is deformed in the fixed direction.

It can be understood that the hinge assembly 11 is located between the flexible display panel 1 and the airbag 21, and the hinge assembly 11 is connected to the airbag 21, and the connection may be a contact connection or a fixed connection. Further, the hinge assembly 11 is disposed in the flexible display panel 1, and the hinge assembly 11 may be used to support deformation of the flexible display panel 1, so as to ensure that the flexible display panel 1 deforms in a fixed direction and maintain stability of the deformation.

In some alternative embodiments, as shown with continued reference to fig. 9, the flexible display panel includes a bending axis O extending along the first direction X; the hinge assembly 11 includes hinge sub-members 111 extending in a first direction X and arranged in a second direction Y, and adjacent hinge sub-members 111 are connected by a positioning pin 112, wherein the first direction X intersects the second direction Y.

Alternatively, in the direction perpendicular to the flexible display panel 1, the orthographic projection of the hinge sub-member 111 on the plane of the flexible display panel 1 may be a first rectangle extending along the first direction X, the orthographic projection of the positioning pin 112 on the plane of the flexible display panel 1 may be a second rectangle extending along the first direction X, the length of the first rectangle is the same as the length of the second rectangle along the first direction X, the width of the first rectangle is greater than or equal to the width of the second long direction along the second direction Y, and the hinge sub-members 111 and the positioning pins 112 are alternately arranged along the second direction Y, adjacent hinge sub-members 111 are connected by the positioning pin 112 to form the hinge assembly 11, and further, in the direction perpendicular to the flexible display panel 1, the orthographic projection of the hinge assembly 11 on the plane of the flexible display panel 1 may be a rectangle, but the invention does not specifically require the shapes of the hinge sub-members 111, the positioning pins 112 and the hinge assembly 11, the setting can be specifically set according to the actual situation, and the description is not repeated below. Here, the flexible display panel 1 refers to when the flexible display panel 1 is in a flattened state.

Optionally, in a direction perpendicular to the flexible display panel 1, the hinge assembly 11 is at least partially overlapped with the flexible display panel 1, and further, the flexible display panel 1 covers the hinge assembly 11, it can be understood that the larger the overlapping area of the hinge assembly 11 and the flexible display panel 1 is, the better the supporting effect on the flexible display panel 1 is, but the position relationship between the hinge assembly 11 and the flexible display panel 1 in the present invention is not limited thereto, and may be specifically set according to actual situations, and will not be described in detail below. Here, the flexible display panel 1 refers to when the flexible display panel 1 is in a flattened state.

It can be understood that the extending direction of the hinge sub-member 111 and the positioning pin 112 in the hinge assembly 11 is the same as the extending direction of the bending axis O of the flexible display panel 1, so that the first deformation of the air bag 21 can be converted into the deformation in the fixed direction, so that the flexible display panel 1 is deformed in the fixed direction along the bending axis O. The adjacent hinge components 111 are connected by the positioning pins 112, and the connection mode can be other connection modes for rotation connection, so long as it is ensured that the first deformation of the airbag 21 can be converted into the deformation in the fixed direction, and the flexible display panel 1 is deformed in the fixed direction along the bending axis O.

In some alternative embodiments, as shown in continued reference to fig. 9, the flexible display panel 1 and the hinge assembly 11 are fixedly connected by an adhesive. Alternatively, the back adhesive may be a thermal adhesive, and the like, and of course, the flexible display panel 1 and the hinge assembly 11 may be fixedly connected in other manners. The connection mode of the flexible display panel 1 and the hinge assembly 11 is not limited in the invention, and the connection mode can be set according to the actual situation, and is not described in detail below.

In some alternative embodiments, referring to fig. 10 and fig. 11, fig. 10 is a schematic diagram illustrating a result of a flexible display device provided by the present invention, and fig. 11 is an exploded view of the flexible display device of fig. 10. The flexible display device 200 provided in this embodiment further includes a base assembly 6, where the base assembly 6 is located on a side of the gas-liquid conversion device 22 away from the flexible display panel 1, and the base assembly 6 is connected to the flexible display panel 1; the base assembly 6 and the flexible display panel 1 form a third accommodation area for placing the air bag 21 and the gas-liquid conversion device 22.

It is understood that the base assembly 6 is connected to the flexible display panel 1 to form a third receiving area for placing the air bag 21 and the gas-liquid conversion device 22, that is, the base assembly is used to receive the deformation device 2 and to fix and protect the deformation device 2. As shown in fig. 10, the base assembly 6 may partially surround the deformation device 2 or completely surround the deformation device 2, the structure of the base assembly 6 is not specifically required in the present invention, as long as the base assembly can function to fix and protect the deformation device, and the present invention does not limit the connection mode between the base assembly 6 and the flexible display panel 1, and the base assembly may be fixedly connected or detachably connected, and may be specifically set according to actual conditions, which is not described in detail below.

In some alternative embodiments, as shown in fig. 9 to 11, the bottom plate 23 includes a second protrusion N, and the second protrusion N is inserted into the base assembly 6 through a gap in the gas-liquid conversion device 22 and is engaged with the base assembly 6.

It is understood that a third receiving area is formed by the connection of the base assembly 6 and the flexible display panel 1 for placing the air bag 21 and the gas-liquid conversion device 22 for fixing and protecting the shape-changing device. Furthermore, through the second protruding N on bottom plate 23 and cross the gap embedding in the gas-liquid conversion equipment 22 base subassembly 6, and with base subassembly 6 block, each device in can further being used for fixed deformation device 2 guarantees deformation device 2's stability.

In some alternative embodiments, as shown in fig. 10, 12 and 12, fig. 12 is a top view of the flexible display device of fig. 10, and fig. 12 is another exploded view of the flexible display device of fig. 10. The flexible display device 200 provided in this embodiment further includes an elastic member 7, an elastic force of the elastic member 7 is opposite to the first deformation force, and one end of the elastic member 7 is connected to the base assembly 6, and the other end is connected to the hinge assembly 11, for providing a force for returning the airbag 21 from the first configuration to the initial state.

Optionally, the elastic component 7 may be a rubber ring or a spring or other elastic component, two ends of the elastic component 7 are respectively connected to the base assembly 6 and the hinge assembly 11, when the flexible display panel 1 is in a flat state, the state of the elastic component 7 is an initial state, that is, the length is an initial length, when the flexible display panel 1 is bent under the action of the airbag 21, the elastic component 7 is respectively pulled by the base assembly 6 and the hinge assembly 11, and the initial length is increased to the elastic length. Since the force of the flexible display panel bending provided by the air bag 21 is balanced with the force applied by the elastic member 7 when the flexible display panel 1 is in the bent state, the first deformation is maintained. When the detecting unit 4 detects that the number of viewers is small and the flexible display device 200 is located at the corresponding position in the center, and transmits the signal to the driving unit 5, the driving unit 5 reversely draws the first liquid in the air bag 21 and guides the first liquid into the liquid storage box 22, and the flexible display panel gradually returns to the initial state, i.e. the flat state due to the non-pressing force. Meanwhile, the elastic component 7 is used for exerting a force opposite to the first deformation, the first form of the air bag 21 is restored to the initial state, and the conversion between curved surface display and plane display of the flexible display panel is realized by using the deformation device.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A flexible display device is characterized by comprising a flexible display panel and a deformation device which are oppositely arranged, wherein,

the deformation device comprises:

the air bag and the gas-liquid conversion device;

the airbag comprises a first airbag interface and a second airbag interface,

the second air bag interface is connected with an air inlet of the gas-liquid conversion device, the first liquid in the air bag is heated and converted into first gas, the first gas is discharged into the gas storage box subassembly through the air inlet, the gas storage box subassembly converts the first gas into the first liquid and discharges the first liquid to the liquid storage box, and the air bag receives the first liquid discharged from the liquid storage box and maintains the first deformation;

the deformation device further comprises a base assembly, the base assembly is positioned on one side, away from the flexible display panel, of the gas-liquid conversion device, and the base assembly is connected with the flexible display panel;

the base assembly and the flexible display panel form a third accommodating area, and the third accommodating area is used for placing the air bag and the gas-liquid conversion device.

2. The flexible display device of claim 1, wherein the reservoir sub-assembly comprises a reservoir and a condensation chamber;

the gas storage box comprises a first gas storage box interface and a second gas storage box interface, the first gas storage box interface is a gas inlet of the gas-liquid conversion device and is connected with the second air bag interface of the air bag, and the second gas storage box interface is connected with the condensation box;

the condensation box comprises a first condensation box interface and a second condensation box interface, the first condensation box interface is connected with the second gas storage box interface of the gas storage box, and the second condensation box interface is connected with the liquid storage box.

3. The flexible display device according to claim 1, further comprising a plurality of detecting units and driving units on the flexible display panel,

the detection unit is used for detecting the number or the position of viewers watching the flexible display panel and transmitting signals to the driving unit;

the driving unit is used for driving the deformation device.

4. The flexible display device according to claim 3, wherein the driving unit drives the first air interface to receive the first liquid in the liquid storage box to generate the first deformation of the air bag according to the signal of the detecting unit, or drives the first air interface to transmit the first liquid in the air bag into the liquid storage box to restore the first deformation of the air bag to an original state.

5. The flexible display device according to claim 1, wherein the shape-changing device further comprises a bottom plate, the bottom plate is sandwiched between the air bag and the gas-liquid conversion device, and a plane of the bottom plate is parallel to a plane of the flexible display panel;

the deformation device further comprises a side wall, the side wall is located at the edge of the bottom plate, and the side wall is intersected with the bottom plate;

the side walls comprise a first side wall protruding in the direction pointing to the light-emitting surface along the backlight surface, the first side wall and the bottom plate form a first accommodating area, and the first accommodating area is used for accommodating the air bag;

and/or the side wall comprises a second side wall protruding in the direction pointing to the backlight surface along the light emitting surface, the second side wall and the bottom plate form a second accommodating area, and the second accommodating area is used for placing the gas-liquid conversion device.

6. The flexible display device of claim 5, wherein the sidewall comprises a position-limiting plate, a plane of the position-limiting plate is perpendicular to a plane of the flexible display panel, and a plane of the position-limiting plate is perpendicular to a plane of the sidewall, and the position-limiting plate is used for fixing the gas cartridge subassembly.

7. The flexible display device according to claim 1, wherein the shape-changing device further comprises a bottom plate, the bottom plate is sandwiched between the air bag and the gas-liquid conversion device, and a plane of the bottom plate is parallel to a plane of the flexible display panel;

one side of the bottom plate, which is far away from the light emergent surface, comprises a clamping piece, and the clamping piece is used for fixing the gas-liquid conversion device.

8. The flexible display device of claim 7, wherein the engaging member comprises a plurality of first protrusions, and the first protrusions are disposed around an outline of an orthographic projection of the gas-liquid conversion device on a plane of the flexible display panel; or the arrangement paths of the first bulges are arranged along the profile of the orthographic projection of the gas-liquid conversion device on the plane of the flexible display panel.

9. The flexible display device according to claim 2, wherein the shape-changing device further comprises a bottom plate, the bottom plate is sandwiched between the air bag and the gas-liquid conversion device, and a plane of the bottom plate is parallel to a plane of the flexible display panel;

the bottom plate includes a plurality of connecting holes, the connecting hole is used for fixing connecting pipe among the gas-liquid conversion equipment, the connecting pipe includes first connecting pipe, first connecting pipe includes first mouth of pipe and second mouth of pipe, first mouth of pipe is gas-liquid conversion equipment the liquid outlet, the second mouth of pipe is the gasbag first gasbag interface.

10. The flexible display device according to claim 9, wherein the connection pipe comprises a second connection pipe, the second connection pipe comprises a third pipe orifice and a fourth pipe orifice, the third pipe orifice is the second condensation box interface of the condensation box, and the fourth pipe orifice is the liquid inlet of the liquid storage box.

11. The flexible display device according to claim 5, 7 or 9, wherein the flexible display panel comprises a hinge assembly, the hinge assembly is located between the flexible display panel and the airbag, and the hinge assembly is connected to the airbag for converting the first deformation of the airbag into a fixed direction deformation, so that the flexible display panel is deformed in a fixed direction.

12. The flexible display device of claim 11, wherein the flexible display panel comprises a bending axis extending along a first direction;

the hinge assembly comprises hinge sub-pieces extending along the first direction and arranged along the second direction, adjacent hinge sub-pieces are connected through a positioning pin,

wherein the first direction intersects the second direction.

13. The flexible display device of claim 11, wherein the flexible display panel and the hinge assembly are fixedly coupled by an adhesive backing.

14. The flexible display device of claim 5, wherein the base plate comprises a second protrusion, and the second protrusion is inserted into the base assembly through a gap in the gas-liquid conversion device and is engaged with the base assembly.

15. The flexible display device of claim 11, wherein the shape-changing device further comprises an elastic member having an elastic force opposite to the first shape-changing force, and one end of the elastic member is connected to the base assembly and the other end is connected to the hinge assembly for providing a force for returning the airbag from the first configuration to the initial state.