Display device

Abstract

The invention provides a display device. The display device further comprises a flexible screen used for displaying pictures, a first supporting piece, a second supporting piece and a thin film motor. The first supporting piece is provided with a containing gap and comprises a first surface, and the first surface is connected with the inner wall of the containing gap. The second supporting piece is movably connected with the first supporting piece, the second supporting piece comprises a second surface, the second surface is aligned with the first surface, and the flexible screen is arranged on the first surface and the second surface and located in the containing gap. The film motor comprises a stator layer and a rotor layer, the stator layer is arranged on the inner wall of the containing gap, and the rotor layer is fixedly connected with the flexible screen. Wherein the stator layer is used for driving the rotor layer to move to drive the flexible screen to move towards the first direction or away from the first direction so as to change the size of the display area, and the display device has no gap, so that the display device can be applied to a small-size display screen.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device. Background Art

[0002] With the rapid development of display technology, display technologies that can change the size of the display area, such as folding screens, have emerged. At present, display technologies that can change the size of the display area are mainly used in large-size display devices, which often change the display area by splicing multiple display screens. However, splicing multiple display screens usually results in gaps between the display screens and is not suitable for small-size display screens.

[0003] Therefore, how to avoid the existence of gaps between spliced ​​screens in the prior art and achieve variable display area of ​​a small-sized display screen is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a display device, which can not only solve the defect of gaps between spliced ​​display screens in the prior art, but also realize that the display area of ​​a small-size display screen can be changed, and can be used for different display size requirements.

[0005] In order to solve the above technical problems, an embodiment of the present application provides a display device, which includes a flexible screen for displaying a picture. The display device also includes a first support member, a second support member and a thin film motor. The first support member is provided with an accommodation gap, the first support member includes a first surface, and the first surface is connected to the inner wall of the accommodation gap. The second support member is movably connected to the first support member, the second support member includes a second surface, the second surface is aligned with the first surface, and the flexible screen is arranged on the first surface and the second surface, and is located in the accommodation gap. The thin film motor includes a stator layer and a rotor layer, the stator layer is arranged on the inner wall of the accommodation gap, and the rotor layer is fixedly connected to the flexible screen. Among them, the stator layer is used to drive the rotor layer to move to drive the flexible screen to move along the first direction or away from the first direction to change the size of the display area, and there is no gap in the display device, so that the display device can be applied to a small-size display screen.

[0006] Therefore, the display device of the present application not only solves the defect of the existing technology that there are gaps between the spliced ​​display screens, but also realizes the display area of ​​the small-sized display screen, and can be used for the needs of different display sizes.

[0007] In an exemplary embodiment, the first support member further defines an accommodation space, the accommodation space being in communication with the accommodation gap. The display device further includes a rotating member, the rotating member being disposed in the accommodation space, the side surface of the rotating member being a curved surface, the flexible screen being also located in the accommodation space, and the flexible screen being rotatably connected to the side surface of the rotating member.

[0008] In an exemplary embodiment, the display device further includes a protective layer, which is disposed in the accommodating space and the accommodating gap, the protective layer is fixedly connected to the stator layer, and the protective layer is slidably connected to the display surface of the flexible screen.

[0009] In an exemplary embodiment, the first support member is provided with a first air chamber and a second air chamber, the first air chamber includes a first air inlet and a first air outlet, the second air chamber includes a second air inlet and a second air outlet, and the first air outlet is connected to the second air inlet. The display device further includes a first piston and a second piston, the first piston is disposed in the first air chamber, the second piston is disposed in the second air chamber, the second piston passes through the first support member and is fixedly connected to the second support member, and the first piston is used to drive the second piston and the second support member to move in a direction away from the first direction.

[0010] In an exemplary embodiment, the display device further includes a first one-way valve and a second one-way valve, the first one-way valve is disposed at the first air inlet, and the second one-way valve is disposed at the second air inlet.

[0011] In an exemplary embodiment, the display device further includes a transmission structure, wherein the transmission structure is connected to the rotating member and the first piston respectively, and the rotating member drives the first piston to reciprocate in the first air chamber through the transmission structure.

[0012] In an exemplary embodiment, the display device further includes a valve core, and the valve core is disposed at the second air outlet.

[0013] In an exemplary embodiment, the first support member includes a first support body, a first position limiting body and a second position limiting body, the first position limiting body and the second position limiting body are fixed to the surface of the first support body away from the first direction, and the second position limiting body and the first position limiting body are sequentially spaced along the second direction. The second support member includes a second support body, a third position limiting body and a fourth position limiting body, the third position limiting body and the fourth position limiting body are both fixed to the surface of the second support body facing the first direction, and the fourth position limiting body and the third position limiting body are sequentially spaced along the second direction. The first position limiting body is slidably connected to the third position limiting body, and the second position limiting body is slidably connected to the fourth position limiting body, wherein the second direction is the thickness direction of the display device, and the second direction is perpendicular to the first direction.

[0014] In an exemplary embodiment, the display device further includes a gear and a rack, the gear is fixed to the second limiting body, the rack is arranged on a surface of the second supporting body facing the first direction, the rack extends along the first direction, and the rack is meshed with the gear.

[0015] In an exemplary embodiment, the display device further includes a first magnetic member and a second magnetic member, the first magnetic member is fixed to the second limiting body, the second magnetic member is fixed to the second supporting body, the second magnetic member and the first magnetic member are spaced apart along the first direction, and the first magnetic member and the second magnetic member are magnetically attracted to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a top view of the display device in a first display state disclosed in an embodiment of the present application; Figure 2 for Figure 1 The cross-sectional schematic diagram of the display device shown is along the II direction; Figure 3 for Figure 2 A schematic structural diagram of the first support member shown; Figure 4 for Figure 2 A schematic structural diagram of a second support member shown; Figure 5 for Figure 2 An enlarged schematic diagram of region II in the display device shown; Figure 6 for Figure 2 An enlarged schematic diagram of region III in the display device shown; Figure 7 A schematic diagram of a top view of the display device in a second display state disclosed in an embodiment of the present application; Figure 8 for Figure 7 The display device shown is a schematic cross-sectional view along the IV-IV direction.

[0018] Description of reference numerals: 1-display device; 10-first support member; 11-first support body; 11a-first surface; 11b-third surface; 12-first limiter; 13-second limiter; 20-second support member; 20a-second surface; 21-second support body; 22-third limiter; 23-fourth limiter; 30-flexible screen; 31-second flexible screen; 40-thin film motor; 41-stator layer; 42-rotor layer; 50-gear; 60-first magnetic member; 70-rack; 80-second magnetic member; 90-protective layer; 111-accommodating gap; 111a-first sub-gap; 111b-second sub-gap; 112-accommodating space; 112a-first sub-space; 112b-second sub-space space; 112c-third subspace; 113-first air chamber; 113a-first air inlet; 113b-first air outlet; 114-second air chamber; 114a-second air inlet; 114b-second air outlet; 115-accommodating cavity; 116-connecting hole; 210-rotating member; 211-rotating shaft; 212-rotating wheel; 213-adhesion layer; 220-supporting member; 230-first piston; 240-second piston; 245-transmission structure; 260-first seal; 250-guide shaft; 270-second seal; 280-first one-way valve; 290-second one-way valve; 310-valve core; 320-fixing member; 330-third magnetic member; 340-fourth magnetic member. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0020] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be implemented. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0021] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be an internal connection between two elements. "Active connection" means that they are connected to each other and can move relative to each other after the connection. "Sliding connection" means that they are connected to each other and can slide relative to each other after the connection. "Rotational connection" means that they are connected to each other and can rotate relative to each other after the connection. "Magnetic connection" means that they are magnetically attracted and in contact with each other. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include", "may include", "contain", or "may contain" used in the present application indicate the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit one or more other functions, operations, elements, etc. In addition, the terms "include" or "contain" indicate the existence of the corresponding features, numbers, steps, operations, elements, parts, or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more other features, numbers, steps, operations, elements, parts, or combinations thereof, and are intended to cover non-exclusive inclusions. It should also be understood that the meaning of "at least one" described herein is one or more, such as one, two or three, etc., and the meaning of "multiple" is at least two, such as two or three, etc., unless otherwise clearly and specifically defined.

[0023] The terms "parallel" and "perpendicular" are defined in terms of the current technological level, rather than being absolutely strict definitions in a mathematical sense. A small amount of deviation is allowed, and approximately parallel, approximately perpendicular, etc. are all acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 5 degrees. For another example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 85 and 95 degrees.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0025] See also Figure 1 and Figure 2 , Figure 1 is a schematic diagram of a top view of the display device in a first display state disclosed in an embodiment of the present application, Figure 2 for Figure 1 The cross-sectional view of the display device shown in FIG. Figure 1 As shown, the display area of ​​the display device 1 in the first display state is small. The display device 1 includes a first support member 10, a second support member 20, a flexible screen 30, and a thin film motor 40. Among them, the first support member 10 is movably connected to the second support member 20, and the second support member 20 is fixedly connected to the flexible screen 30. A part of the flexible screen 30 is arranged on the surface of the first support member 10 and the surface of the second support member 20, and another part of the flexible screen 30 is arranged inside the first support member 10, and the thin film motor 40 is arranged inside the first support member 10. The thin film motor 40 is used to drive the flexible screen 30 to move, so as to change the flexible screen 30 inside the first support member 10 and change the surface ratio of the flexible screen 30 in the first support member 10 and the second support member 20, thereby realizing the change of the display area of ​​the display device 1. The first support member 10 is movably connected to the second support member 20, and the second support member 20 is fixedly connected to the flexible screen 30. When the flexible screen 30 moves, the second support member 20 also moves accordingly, thereby preventing the flexible screen 30 from being stretched or wrinkled.

[0026] For the convenience of description, the width direction of the display device 1 is defined as the X-axis direction, the length direction of the display device 1 is defined as the Y-axis direction, and the height direction of the display device 1 is defined as the Z-axis direction. The X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other. In an exemplary embodiment, the X-axis direction may be a first direction, and the Z-axis direction may be a second direction. In other embodiments, the Y-axis direction may be a first direction, and correspondingly, the X-axis direction may be a second direction.

[0027] Please also read Figure 3 , Figure 3 for Figure 2 The schematic diagram of the structure of the first support member is shown. The first support member 10 includes a first support body 11, a first limiting body 12 and a second limiting body 13. The first limiting body 12 and the second limiting body 13 are arranged on the surface of the first support body 11 away from the X-axis direction, and the second limiting body 13 and the first limiting body 12 are arranged in sequence and spaced along the Z-axis direction, and the first limiting body 12 and the second limiting body 13 are respectively fixedly connected to the first support body 11. The first limiting body 12 and the second limiting body 13 both extend in a direction away from the X-axis, that is, one end of each of the first limiting body 12 and the second limiting body 13 is fixedly connected to the first support body 11, and the other opposite ends of each of the first limiting body 12 and the second limiting body 13 extend in a direction away from the X-axis.

[0028] The first support body 11 includes a first surface 11 a and a third surface 11 b , and the first surface 11 a and the third surface 11 b are disposed opposite to each other along the Z-axis direction.

[0029] The first support body 11 is provided with a receiving gap 111 and a receiving space 112. The receiving gap 111 is in a horizontal "J" shape, that is, the receiving gap 111 is in a horizontal "J" shape along the X-axis direction. The receiving space 112 is composed of a "rectangular" space and two "semicircular" spaces located on opposite sides of the "rectangular" space, that is, the receiving space 112 is composed of a "semicircular" space, a "rectangular" space and a "semicircular" space along the X-axis direction. The receiving gap 111 is connected to the receiving space 112, and the inner wall of the receiving gap 111 is also connected to the first surface 11a.

[0030] In the embodiment of the present application, the accommodating gap 111 includes a first sub-gap 111 a and a second sub-gap 111 b . Figure 3The dotted line in the figure shows the connection between the first sub-gap 111a and the second sub-gap 111b. The first sub-gap 111a is in the shape of a long strip, and the second sub-gap 111b is in the shape of a semicircle. The first sub-gap 111a and the second sub-gap 111b are arranged in a direction away from the X-axis, the first sub-gap 111a is connected to the second sub-gap 111b, and the inner wall of the first sub-gap 111a is connected to the first surface 11a.

[0031] In the embodiment of the present application, the accommodating space 112 includes a first subspace 112a, a second subspace 112b and a third subspace 112c. Figure 3 The dotted lines in FIG. 1 show the connection between the first subspace 112 a and the second subspace 112 b and the connection between the second subspace 112 b and the third subspace 112 c .

[0032] The first subspace 112a is semicircular in shape, the second subspace 112b is rectangular in shape, and the third subspace 112c is semicircular in shape. The first subspace 112a, the second subspace 112b and the third subspace 112c are arranged in sequence along the X-axis direction. The first subspace 111a and the second subspace 112b are arranged in sequence and spaced apart along the Z-axis direction, and the first subspace 111a is connected to the first subspace 112a. The third subspace 112c and the second subspace 111b are arranged in the X-axis direction and spaced apart.

[0033] In the embodiment of the present application, the first support body 11 further defines a first air chamber 113 and a second air chamber 114. The first air chamber 113 and the second air chamber 114 are arranged and connected along a direction away from the X axis, and the first air chamber 113 and the accommodating space 112 are arranged and spaced apart along the X axis.

[0034] The first air chamber 113 includes a first air inlet 113a and a first air outlet 113b, and the second air chamber 114 includes a second air inlet 114a and a second air outlet 114b. The inner wall of the first air inlet 113a is connected to the third surface 11b, that is, the first air inlet 113a extends to the third surface 11b, and the first air inlet 113a can also be a channel. The first air outlet 113b is connected to the second air inlet 114a. The inner wall of the second air outlet 114b is connected to the third surface 11b, that is, the second air outlet 114b extends to the third surface 11b, and the second air outlet 114b can also be a channel.

[0035] The first support body 11 is further provided with a receiving cavity 115, which is disposed between the receiving space 112 and the first air chamber 113, and is communicated with the first air chamber 113. The receiving cavity 115 may be communicated with the receiving space 112, or may not be communicated with the receiving space 112, and the present application does not impose any specific limitation on this.

[0036] The first support body 11 is further provided with a connection hole 116, which is disposed on the side of the second air chamber 114 away from the X-axis direction, and is communicated with the second air chamber 114, and is also communicated with the outside. That is, one end of the connection hole 116 is disposed on the side of the second air chamber 114 away from the first air chamber 113, and is communicated with the second air chamber 114, and the other end of the connection hole 116 is communicated with the outside.

[0037] like Figure 2 and Figure 3 As shown, the display device 1 may further include a gear 50 and a first magnetic member 60, wherein the gear 50 is disposed at an end of the second limiting body 13 that is away from the X-axis direction, and the gear 50 is fixedly connected to the second limiting body 13, and the first magnetic member 60 is disposed at an end of the second limiting body 13 that is away from the X-axis direction, and the first magnetic member 60 is fixedly connected to the second limiting body 13.

[0038] The display device 1 may further include a secondary flexible screen 31, and the secondary flexible screen 31 is disposed on a surface of the first support body 11 facing the X-axis direction. The secondary flexible screen 31 is a curved screen.

[0039] Please also read Figure 3 and Figure 4 , Figure 4 for Figure 2 The second support member 20 comprises a second surface 20a, and the second surface 20a is aligned with the first surface 11a.

[0040] In the embodiment of the present application, the second support member 20 further includes a second support body 21, a third position limiting body 22 and a fourth position limiting body 23. The third position limiting body 22 and the fourth position limiting body 23 are both arranged on the surface of the second support body 21 facing the X-axis direction, and the third position limiting body 22 and the fourth position limiting body 23 both extend along the X-axis direction. The fourth position limiting body 23 and the third position limiting body 22 are sequentially arranged and spaced along the Z-axis direction, and the third position limiting body 22 and the fourth position limiting body 23 are respectively fixedly connected to the second support body 21. The first position limiting body 12 is slidably connected to the third position limiting body 22, and the second position limiting body 13 is slidably connected to the fourth position limiting body 23.

[0041] like Figure 4 As shown, the display device 1 further includes a rack 70 and a second magnetic member 80, wherein the rack 70 is disposed on the surface of the second support body 21 facing the X-axis direction and extends in the X-axis direction. The rack 70 is located between the third position limiting body 22 and the fourth position limiting body 23, and is spaced from the third position limiting body 22 and the fourth position limiting body 23 respectively, and the rack 70 is fixedly connected to the second support body 21. The second magnetic member 80 is disposed on the surface of the second support body 21 facing the X-axis direction and is located between the rack 70 and the fourth position limiting body 23, and the second magnetic member 80 is fixedly connected to the second support body 21.

[0042] See also Figure 2 The flexible screen 30 is disposed on the first surface 11a, the second surface 20a, the accommodating gap 111 and the accommodating space 112.

[0043] See also Figure 5 , Figure 5 for Figure 2 An enlarged schematic diagram of region II in the display device shown. The thin film motor 40 includes a stator layer 41 and a rotor layer 42, wherein the stator layer 41 is disposed on the inner wall of the accommodating gap 111, and the rotor layer 42 is disposed on the flexible screen 30, and the rotor layer 42 is fixedly connected to the flexible screen 30. The stator layer 41 is used to drive the rotor layer 42 to move along the extension direction of the accommodating gap 111, thereby driving the flexible screen 30 located in the accommodating gap 111 to move along the extension direction of the accommodating gap 111. The flexible screen 30 located on the first surface 11a and the second surface 20a can selectively move along the X-axis direction or along the direction away from the X-axis.

[0044] It should be noted that both the stator layer 41 and the rotor layer 42 can be coils. A magnetic field force is formed between the energized stator layer 41 and the energized rotor layer 42, and then the stator layer 41 can drive the rotor layer 42 to move.

[0045] In the embodiment of the present application, the display device 1 further includes a rotating member 210, and the rotating member 210 is disposed in the accommodating space 112. The flexible screen 30 is rotatably connected to the rotating member 210, and the rotating member 210 is a driven member. The flexible screen 30 drives the rotating member 210 to rotate through friction.

[0046] For example, the thin film motor 40 drives the flexible screen 30 located in the second sub-gap 111b to move counterclockwise, and the flexible screen 30 located on the first surface 11a and the second surface 20a moves in the X-axis direction, thereby reducing the display area of ​​the flexible screen 30. Accordingly, the flexible screen 30 located in the accommodating space 112 rotates counterclockwise, and drives the rotating member 210 to rotate counterclockwise.

[0047] For another example, the thin film motor 40 drives the flexible screen 30 located in the second sub-gap 111b to move clockwise, and the flexible screen 30 located on the first surface 11a and the second surface 20a moves away from the X-axis direction, thereby increasing the display area of ​​the flexible screen 30. Accordingly, the flexible screen 30 located in the accommodating space 112 rotates clockwise, and drives the rotating member 210 to rotate clockwise.

[0048] It should be noted that the number of the rotating members 210 can be determined according to the length of the flexible screen 30 in the accommodating space 112. If the length of the flexible screen 30 is longer, the number of the rotating members 210 can be two; if the length of the flexible screen 30 is longer, the number of the rotating members 210 can be one.

[0049] In an exemplary embodiment, the rotating member 210 includes a side surface, and the side surface may be a curved surface, and the flexible screen 30 is rotatably connected to the side surface of the rotating member 210 .

[0050] It can be understood that, by rotating the flexible screen 30 and the side of the rotating member 210, the moving direction of the flexible screen 30 in the accommodating space 112 can be changed, so that the flexible screen 30 is bent in the accommodating space 112, and thus a larger area of ​​the flexible screen 30 can be stored in the accommodating space 112. In other embodiments, the rotating member 210 can also actively drive the flexible screen 30 to move, that is, the rotating member 210 can be an active member.

[0051] In an exemplary embodiment, a driving layer may be provided on the back of the flexible screen 30, and the driving layer moves with the flexible screen 30. The driving layer can prevent the rotating member 210 from excessively squeezing the flexible screen 30, which is beneficial to protecting the flexible screen 30. The back of the flexible screen 30 is arranged opposite to the display surface of the flexible screen 30.

[0052] like Figure 5As shown, in an exemplary embodiment, the rotating member 210 includes a rotating shaft 211, a rotating wheel 212 and an adhesive layer 213. The rotating wheel 212 is sleeved on the rotating shaft 211, and the rotating wheel 212 is fixedly connected to the rotating shaft 211. The adhesive layer 213 is sleeved on the rotating wheel 212, and the adhesive layer 213 is fixedly connected to the rotating wheel 212. The rotating shaft 211 drives the rotating wheel 212 and the adhesive layer 213 to rotate. The adhesive layer 213 is rotationally connected to the driving layer of the flexible screen 30.

[0053] It should be noted that the adhesive layer 213 can adhere to the driving layer to increase the connection stability between the adhesive layer 213 and the driving layer. The adhesion between the adhesive layer 213 and the driving layer is detachable.

[0054] In an exemplary embodiment, the display device further includes a protective layer 90, which is disposed in the accommodating space 112 and the accommodating gap 111, and is located between the stator layer 41 and the flexible screen 30, and the protective layer 90 is fixedly connected to the stator layer 41. The protective layer 90 is slidably connected to the display surface of the flexible screen 30.

[0055] It can be understood that the protective layer 90 is fixed, and the flexible screen 30 can move relative to the protective layer 90. By providing the protective layer 90, the display panel of the flexible screen 30 can be prevented from being scratched.

[0056] In an exemplary embodiment, the display device 1 further includes a resisting member 220, which is disposed in the accommodating space 112. The resisting member 220 contacts the flexible screen 30 to resist the flexible screen 30. Since the flexible screen 30 is bendable, in order to prevent the flexible screen 30 from being loose in the accommodating space 112, the resisting member 220 is disposed to resist the flexible screen 30.

[0057] See also Figure 6 , Figure 6 for Figure 2 The display device 1 further includes a first piston 230 and a second piston 240. The first piston 230 is disposed in the first air chamber 113 and can move relative to the first air chamber 113 along the X-axis direction or along the direction away from the X-axis. The second piston 240 is disposed in the second air chamber 114 and can move relative to the second air chamber 114 along the X-axis direction or along the direction away from the X-axis. The second piston 240 passes through the connection hole 116 of the first support body 11 and is fixedly connected to the second support body 21.

[0058] The display device 1 further includes a transmission structure 245, which is connected to the rotating member 210 and the first piston 230 respectively. The rotating member 210 can drive the first piston 230 to reciprocate along the X-axis direction and away from the X-axis direction through the transmission structure 245. Specifically, when the rotating member 210 rotates clockwise, the first piston 230 is driven to reciprocate along the X-axis direction and away from the X-axis direction through the transmission structure 245. The transmission structure 245 is a crank slider mechanism.

[0059] In an exemplary embodiment, the transmission structure 245 is connected to the eccentric position of the rotating shaft 211 of the rotating member 210, that is, the transmission structure 245 is not connected to the center point of the rotating shaft 211, so that the rotating shaft 211 can drive the transmission structure 245 to reciprocate along the X-axis direction and away from the X-axis direction.

[0060] Please also read Figures 6 to 8 , Figure 6 for Figure 2 An enlarged schematic diagram of region III in the display device shown, Figure 7 is a schematic diagram of a top view of the display device in a second display state disclosed in an embodiment of the present application, Figure 8 for Figure 7 The cross-sectional view of the display device shown in FIG. Figure 7 As shown, the display area of ​​the display device 1 in the second display state is larger.

[0061] For example, the above description describes that the thin film motor 40 drives the flexible screen 30 located in the second sub-gap 111b to move clockwise, the rotating member 210 moves clockwise, and the flexible screen 30 located on the first surface 11a and the second surface 20a moves away from the X-axis direction. At the same time, when the transmission structure 245 drives the first piston 230 to move along the X-axis direction, the external gas enters the first air chamber 113 through the first air inlet 113a.

[0062] Then, when the transmission structure 245 drives the first piston 230 to move in a direction away from the X-axis, the gas in the first air chamber 113 enters the second air chamber 114 through the first air outlet 113b and the second air inlet 114a, thereby driving the second piston 240 to move in a direction away from the X-axis. Since the second piston 240 is fixedly connected to the second support member 20, the second piston 240 drives the second support member 20 to move in a direction away from the X-axis. Since the flexible screen 30 is fixedly connected to the second support member 20, the second support member 20 also drives the flexible screen 30 to move in a direction away from the X-axis, thereby increasing the display area of ​​the display device 1.

[0063] It should be noted that the thin film motor 40 is powered off, that is, the thin film motor 40 does not drive the flexible screen 30 to move. Under the action of the gas pressure in the second air chamber 114, the position of the second support member 20 relative to the first support member 10 remains unchanged, and the position of the second support member 20 relative to the first support member 10 is precisely controlled. That is, when the thin film motor 40 is powered off, the display area of ​​the display device 1 does not change.

[0064] It can be understood that in the present application, the display area of ​​the display device 1 is increased by only energizing the thin film motor 40 , so that the power consumption required for changing the display area of ​​the display device 1 is relatively low.

[0065] In other implementations, the first piston 230 may also be driven by other mechanisms having kinetic energy, and the present application does not impose any specific limitation on this.

[0066] In an exemplary embodiment, see Figure 6 The display device 1 further includes a guide shaft 250, which is disposed in the accommodating chamber 115 and is fixedly connected to the first piston 230. The guide shaft 250 moves in the accommodating chamber 115 along the X-axis direction and moves away from the X-axis direction.

[0067] It can be understood that the direction of the force used by the transmission structure 245 to drive the first piston 230 to reciprocate is not parallel to the X-axis direction. In order to prevent the first piston 230 from being out of the cylinder, the guide shaft 250 is provided to ensure that the first piston 230 can stably reciprocate along the X-axis direction in the first air chamber 113.

[0068] In an exemplary embodiment, the display device 1 further includes a first packer 260 and a second packer 270, wherein the first packer 260 is disposed at the connection between the first air chamber 113 and the accommodating cavity 115, and the second packer 270 is disposed at the connection between the second air chamber 114 and the connecting hole 116. The first packer 260 is used to seal the first air chamber 113 and the accommodating cavity 115 to prevent the gas in the first air chamber 113 from flowing out to the accommodating cavity 115. The second packer 270 is used to seal the second air chamber 114 and the connecting hole 116 to prevent the gas in the second air chamber 114 from flowing out to the connecting hole 116.

[0069] The first packer 260 and the second packer 270 may be static seals, dynamic seals, packing seals or mechanical seals, etc., and the present application does not impose any specific limitation on this.

[0070] In an exemplary embodiment, the display device 1 further includes a first one-way valve 280 and a second one-way valve 290. The first one-way valve 280 is disposed at the first air inlet 113a, and the second one-way valve 290 is disposed at the second air inlet 114a. The first one-way valve 280 allows external gas to enter the first air chamber 113 through the first air inlet 113a, and prevents the gas in the first air chamber 113 from flowing out to the outside through the first air inlet 113a in reverse. The second one-way valve 290 allows the gas in the first air chamber 113 to enter the second air chamber 114 through the second air inlet 114a, and prevents the gas in the second air chamber 114 from flowing out to the outside through the second air inlet 114a in reverse.

[0071] In an exemplary embodiment, the display device 1 further includes a valve core 310 and a fixing member 320, and the valve core 310 is disposed at the second air outlet 114b. The valve core 310 is used to open or close, and the back-and-forth conversion between opening and closing of the valve core 310 is realized by rotating the valve core 310. The valve core 310 is used to selectively open or close the second air outlet 114b, or to adjust the gas flow through the second air outlet 114b. Specifically, when the valve core 310 is opened, the gas in the second air chamber 114 flows out to the outside through the second air outlet 114b. When the valve core 310 is closed, the gas in the second air chamber 114 cannot pass through the second air outlet 114b. The fixing member 320 is fixed in the second air outlet 114b, and the fixing member 320 clamps the valve core 310 by magnetic attraction, increases the resistance to the rotation of the valve core 310, and prevents the valve core 310 from loosening.

[0072] In an exemplary embodiment, the second magnetic member 80 and the first magnetic member 60 are arranged and spaced apart along the X-axis direction, the first magnetic member 60 is fixed to the second limiting body 13 of the first support member 10, and the second magnetic member 80 is fixed to the second support body 21 of the second support member 20. The magnetic attraction between the first magnetic member 60 and the second magnetic member 80 causes the second support member 20 to move in the X-axis direction.

[0073] For example, when the valve core 310 is closed, the first magnetic member 60 and the second magnetic member 80 enable the second support member 20 to move in the X-axis direction. Since the second air chamber 114 is filled with gas, the second support member 20 cannot move in the X-axis direction.

[0074] At this time, the valve core 310 is opened, the gas in the second air chamber 114 is discharged through the second air outlet 114b, and the second support member 20 can move in the X-axis direction. At the same time, the thin film motor 40 drives the flexible screen 30 located in the second sub-gap 111b to move counterclockwise, and the flexible screen 30 located on the first surface 11a and the second surface 20a moves in the X-axis direction.

[0075] It can be understood that in the present application, the display area of ​​the display device 1 is reduced by only energizing the thin film motor 40 and exhausting the gas in the second air chamber 114, so that the power consumption required for changing the display area of ​​the display device 1 is lower.

[0076] It should be noted that when the first piston 230 injects gas into the second piston 240 , the valve core 310 is closed.

[0077] See also Figure 6 The first limiting body 12 is disposed between the third limiting body 22 and the rack 70 , and the second limiting body 13 is disposed between the rack 70 and the fourth limiting body 23 , so as to prevent the second supporting member 20 from falling off from the first supporting member 10 .

[0078] In an exemplary embodiment, the rack 70 is meshed with the gear 50. When the second support member 20 moves relative to the first support member 10 in the direction toward the X-axis, the rack 70 moves relative to the gear 50 in the direction toward the X-axis. When the second support member 20 moves relative to the first support member 10 in the direction away from the X-axis, the rack 70 moves relative to the gear 50 in the direction away from the X-axis. The meshing of the rack 70 and the gear 50 makes the second support member 20 move more smoothly relative to the first support member 10.

[0079] In an exemplary embodiment, see Figure 2 and Figure 8 The display device 1 further includes a third magnetic member 330 and a fourth magnetic member 340, and the third magnetic member 330 and the fourth magnetic member 340 are arranged along the Z direction. The third magnetic member 330 is fixed to the first support body 11 of the first support member 10, and the fourth magnetic member 340 is fixed to the second support body 21 of the second support member 20. The third magnetic member 330 and the fourth magnetic member 340 are selectively connected or separated. Figure 2 In the embodiment, the third magnetic member 330 is connected to the fourth magnetic member 340. Figure 8 In the embodiment, the third magnetic member 330 is separated from the fourth magnetic member 340 .

[0080] It can be understood that the third magnetic member 330 and the fourth magnetic member 340 are connected together by magnetic attraction to prevent the second support member 20 from moving along the Z-axis direction relative to the first support member 10. Moreover, the magnetic attraction between the third magnetic member 330 and the fourth magnetic member 340 can also drive the second support member 20 to move in the X-axis direction.

[0081] In summary, the display device 1 provided in the embodiment of the present application includes a first support member 10, a second support member 20, a flexible screen 30 and a thin film motor 40, wherein the first support member 10 is provided with an accommodation gap 111, and the first support member 10 includes a first surface 11a, and the first surface 11a is connected to the inner wall of the accommodation gap 111. The second support member 20 is arranged on the first support member 10, and the second support member 20 is movably connected to the first support member 10. The second support member 20 includes a second surface 20a, and the second surface 20a is aligned with the first surface 11a. The flexible screen 30 is arranged on the first surface 11a and the second surface 20a, and is located in the accommodation gap 111. The thin film motor 40 includes a stator layer 41 and a rotor layer 42, the stator layer 41 is arranged on the inner wall of the accommodation gap 111, and the rotor layer 42 is arranged on the flexible screen 30. The thin film motor 40 is used to drive the flexible screen 30 to move in the direction toward or away from the X-axis to change the size of the display area, and the display device 1 does not have a gap, so that the display device 1 can be applied to a small-sized display screen. Therefore, the display device 1 of the present application not only solves the defect of the existing technology that there is a gap between the spliced ​​display screens, but also realizes the display area of ​​the small-sized display screen, which can be used for the needs of different display sizes.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0083] It should be understood that the application of this application is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of this application still fall within the scope covered by this application.

Claims

1. A display device, comprising a flexible screen for displaying images, characterized in that: The display device further includes: A first support member, wherein the first support member defines an accommodation gap, and the first support member includes a first surface, and the first surface is connected to an inner wall of the accommodation gap; a second support member, the second support member is movably connected to the first support member, the second support member comprises a second surface, the second surface is aligned with the first surface, the flexible screen is arranged on the first surface and the second surface, and is located in the accommodating gap; A thin film motor, the thin film motor comprising a stator layer and a rotor layer, the stator layer is arranged on the inner wall of the accommodating gap, and the rotor layer is fixedly connected to the flexible screen; The stator layer is used to drive the rotor layer to move so as to drive the flexible screen to move toward a first direction or away from a first direction, and the first direction is a length direction or a width direction of the display device.

2. The display device according to claim 1, wherein: The first support member is further provided with a receiving space, and the receiving space is communicated with the receiving gap; The display device also includes a rotating member, which is disposed in the accommodating space. The side surface of the rotating member is a curved surface. The flexible screen is also located in the accommodating space, and the flexible screen is rotatably connected to the side surface of the rotating member.

3. The display device according to claim 2, wherein: The display device further includes a protective layer, which is disposed in the accommodating space and the accommodating gap, the protective layer is fixedly connected to the stator layer, and the protective layer is slidably connected to the display surface of the flexible screen.

4. The display device according to claim 2, wherein: The first support member is provided with a first air chamber and a second air chamber, the first air chamber includes a first air inlet and a first air outlet, the second air chamber includes a second air inlet and a second air outlet, and the first air outlet is connected to the second air inlet; The display device also includes a first piston and a second piston, the first piston is arranged in the first air chamber, the second piston is arranged in the second air chamber, the second piston passes through the first support member and is fixedly connected to the second support member, and the first piston is used to drive the second piston and the second support member to move in a direction away from the first direction.

5. The display device according to claim 4, characterized in that The display device further includes a first one-way valve and a second one-way valve, wherein the first one-way valve is disposed at the first air inlet, and the second one-way valve is disposed at the second air inlet.

6. The display device according to claim 4, characterized in that The display device further includes a transmission structure, wherein the transmission structure is connected to the rotating member and the first piston respectively, and the rotating member drives the first piston to reciprocate in the first air chamber through the transmission structure.

7. The display device according to claim 4, characterized in that The display device further includes a valve core, and the valve core is arranged at the second air outlet.

8. The display device according to any one of claims 1 to 7, characterized in that: The first support member includes a first support body, a first limiter and a second limiter, the first limiter and the second limiter are fixed to the surface of the first support body away from the first direction, the second limiter and the first limiter are arranged in sequence along the second direction, the second support member includes a second support body, a third limiter and a fourth limiter, the third limiter and the fourth limiter are both fixed to the surface of the second support body facing the first direction, the fourth limiter and the third limiter are arranged in sequence along the second direction, the first limiter is slidably connected to the third limiter, the second limiter is slidably connected to the fourth limiter, wherein the second direction is the thickness direction of the display device, and the second direction is perpendicular to the first direction.

9. The display device according to claim 8, wherein: The display device further includes a gear and a rack, wherein the gear is fixed to the second limiting body, the rack is arranged on a surface of the second supporting body facing the first direction, the rack extends along the first direction, and the rack is meshed with the gear.

10. The display device according to claim 8, wherein: The display device further includes a first magnetic member and a second magnetic member, the first magnetic member is fixed to the second limiting body, the second magnetic member is fixed to the second supporting body, the second magnetic member and the first magnetic member are spaced apart along the first direction, and the first magnetic member and the second magnetic member are magnetically attracted to each other.

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