Display device

Abstract

The embodiment of the present application provides a display device, comprising: a base; a first display layer, which is slidably connected with the base; a second display layer, which is installed on the base; a driving assembly, which is installed on the middle part of the base, and is used for driving the first display layer to move towards the direction of moving away from or close to the second display layer; and a lifting assembly, which is installed on the base, and is used for driving the first display layer to move in the direction perpendicular to the display surface of the first display layer. The display device provided by the embodiment of the present application can effectively reduce the gap between the display layers, thereby improving the display effect; and the display device can be expanded or contracted according to actual requirements, thereby greatly improving the applicability of the display device.

Description

Technical Field

[0001] This application belongs to the field of display technology, and in particular relates to a display device. Background Technology

[0002] With the rapid development of display technology, display technologies such as foldable screens, rollable screens, and flexible screens, which can change the size of the display area, have emerged and become new convenient display technologies. These innovative display technologies not only break through the limitations of traditional fixed-shape screens, but also bring users a more flexible and diverse user experience.

[0003] However, current displays capable of varying screen size primarily operate on the principle of using motors and gears to drive the individual screens to rotate, combine, or stack. This driving method is rather simple and crude, resulting in large gaps between the screens and ultimately poor display quality. Summary of the Invention

[0004] In view of this, this application provides a display device to solve the technical problem that existing foldable screens have a simple and crude driving method and large gaps between screens, resulting in poor final display effect.

[0005] This application provides a display device, including:

[0006] Base;

[0007] The first display layer is slidably connected to the base;

[0008] A second display layer is mounted on the base;

[0009] A driving component is installed in the middle of the base and connected to the first display layer. The driving component is used to drive the first display layer to move in a direction away from or towards the second display layer.

[0010] A lifting assembly is mounted on the base, and the lifting assembly is used to drive the first display layer to move in a direction perpendicular to the display surface of the first display layer.

[0011] In some embodiments, the display device includes two states:

[0012] When the display device is in the first state, the second display layer is located under the orthographic projection of the first display layer, and the display surface of the display device is the first display layer;

[0013] When the display device is in the second state, the first display layer is located on the side of the second display layer away from the driving component, and the first display layer and the second display layer are located on the same plane. The display surface of the display device is composed of the first display layer and the second display layer.

[0014] In some embodiments, the display device further includes a third display layer located below the second display layer, the third display layer being slidably connected to the base;

[0015] The driving component is also used to drive the third display layer to move in a direction away from the driving component or in a direction closer to the driving component.

[0016] In some embodiments, the display device includes two states:

[0017] When the display device is in the first state, the second display layer is located under the orthographic projection of the first display layer, and the display screen of the display device is composed of the first display layer;

[0018] When the display device is in the second state, the first display layer is located on the side of the second display layer away from the driving component, and the first display layer and the second display layer are located on the same plane. The display screen of the display device is composed of the first display layer and the second display layer.

[0019] In some embodiments, the display device further includes a third display layer located below the second display layer, wherein the third display layer is provided with a positioning element for positioning and cooperating with the second display layer on the side near the driving component.

[0020] In some embodiments, the base includes:

[0021] The substrate has a mounting hole in the middle, and the driving component is mounted in the mounting hole;

[0022] The telescopic housing includes a sliding part and a connecting part, wherein the sliding part is slidably connected to the substrate and the connecting part is connected to the first display layer;

[0023] A first guide groove is formed between the substrate and the telescopic housing. A first air passage is provided in the telescopic housing to connect the first guide groove and the lifting assembly. The first display layer of the telescopic housing moves away from or towards the driving assembly. The pressure in the first guide groove and the first air passage changes to provide a power source to the lifting assembly.

[0024] In some embodiments, the lifting assembly includes:

[0025] A cylinder is mounted on the connecting part;

[0026] An elastic element, one end of which is connected to the connecting part and the other end of which is connected to the sliding part, wherein the thrust generated by the pressure change in the first air passage is used to push the piston rod of the cylinder to drive the first display layer to move in a direction perpendicular to the display surface of the first display layer.

[0027] In some embodiments, the driving component includes:

[0028] An electric motor is mounted in the middle of the base, and the electric motor has a rotating shaft with threads on its surface;

[0029] A support nut is threadedly connected to the rotating shaft, and a compression space is formed between the rotating shaft and the nut. The side of the support nut away from the rotating shaft is connected to the second display layer.

[0030] The support nut has a second air passage that connects the telescopic housing and the compression space. The pressure in the compression space changes when the motor rotates, and the pressure change in the compression space drives the telescopic housing to move toward or away from the motor through the second air passage.

[0031] In some embodiments, the base further includes a support housing connected to the motor, a third display layer is slidably disposed above the support housing, and the support nut is provided with an air hole, through which the third display layer is connected to the compression space.

[0032] In some embodiments, the support nut is further provided with a constraint groove on the side away from the compression space.

[0033] In some embodiments, a second guide groove is formed between the third display layer and the supporting housing, a third limiting member is provided at the end of the third display layer near the supporting nut, and a fourth limiting member is provided at the end of the supporting housing away from the supporting nut, with the third limiting member and the fourth limiting member engaging in a limiting cooperation.

[0034] In some embodiments, the third display layer is further provided with a third magnetic element on the side near the support nut.

[0035] In some embodiments, the base further includes a connecting housing connected to the motor, the connecting housing being provided with a first magnetic element, and the telescopic housing being provided with a second magnetic element, the first magnetic element and the second magnetic element being magnetically attracted to each other.

[0036] In some embodiments, the base further includes a connecting housing, the connecting housing having a clearance groove on the side near the rotating shaft, the clearance groove being used to allow space for the support nut.

[0037] In some embodiments, the first display layer has at least two layers.

[0038] In some embodiments, the second display layer has at least two layers.

[0039] In some embodiments, the projections of the first display layer and the second display layer onto the base are in the shape of any one of a rectangle, triangle, sector, pentagon, or hexagon.

[0040] The display device provided in this application embodiment drives a first display layer via a driving component to move the first display layer away from the second display layer (expanding the display device) or move it closer to the second display layer (contracting the display device). During the driving of the first display layer, the first and second display layers are not on the same plane, resulting in a significant gap in the vertical direction. Therefore, a lifting component drives the first display layer to move in a direction perpendicular to its display surface. This facilitates moving the first and second display layers to the same plane when expanding the display device, reducing the gap between the display layers and improving the display effect. Similarly, when contracting the display device, it facilitates raising the height of the first display layer to its original position. Thus, the display device provided in this application embodiment effectively reduces the gap between the first and second display layers, thereby improving the display effect. Furthermore, it allows for expansion or contraction according to actual needs, greatly enhancing the applicability of the display device. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a cross-sectional structural diagram of the display device provided in the embodiments of this application;

[0043] Figure 2 This is a schematic diagram of the structure of the display device provided in the embodiment of this application when it is in a retracted state;

[0044] Figure 3 This is a schematic diagram of the structure of the display device provided in the embodiment of this application when it is in an extended state;

[0045] Figure 4 This is a cross-sectional structural schematic diagram of a display device provided in another embodiment of this application;

[0046] Figure 5 yes Figure 4 A schematic diagram of the structure of the display device in its retracted state;

[0047] Figure 6 yes Figure 4 A schematic diagram of the structure when the display device is in an extended state;

[0048] Figure 7 yes Figure 4 Enlarged view of point A in the middle;

[0049] Figure 8 yes Figure 4 A diagram illustrating the status of the display device during the expansion process. Figure 1 ;

[0050] Figure 9 yes Figure 4 A diagram illustrating the status of the display device during the expansion process. Figure 2 ;

[0051] Figure 10 yes Figure 4 A diagram illustrating the status of the display device during the expansion process. Figure 3 ;

[0052] Figure 11 yes Figure 4 A diagram illustrating the status of the display device during the expansion process. Figure 4 ;

[0053] Figure 12 This is a schematic diagram of the structure of a display device in a retracted state according to another embodiment of this application;

[0054] Figure 13 yes Figure 12 A schematic diagram of the structure when the display device is in an extended state;

[0055] Figure 14 This is a schematic diagram of the structure of a display device in a retracted state according to another embodiment of this application;

[0056] Figure 15 yes Figure 14 A schematic diagram of the structure when the display device is in an extended state;

[0057] Figure 16 This is a schematic diagram of the structure of a display device in a retracted state according to another embodiment of this application;

[0058] Figure 17 yes Figure 16 A schematic diagram of the structure when the display device is in an extended state.

[0059] The attached icon numbers are as follows:

[0060] 10. Base; 11. Base plate; 111. First limiting member; 12. Telescopic housing; 120. First air passage; 121. Sliding part; 122. Connecting part; 123. Second limiting member; 124. Second magnetic member; 125. Guide fixing member; 13. Support housing; 131. Fourth limiting member; 14. Connecting housing; 140. Relief groove; 141. First magnetic member; 100. First guide groove; 200. Second guide groove;

[0061] 20. First display layer; 21. First protective layer;

[0062] 30. Second display layer; 31. Second protective layer; 32. Third protective layer;

[0063] 40. Third display layer; 41. Third limiting component; 42. Third magnetic component; 43. Positioning component; 430. Positioning groove; 431. Matching key;

[0064] 50. Drive assembly; 51. Motor; 511. Shaft; 52. Support nut; 520. Second air passage; 521. Air hole; 522. Constraint groove; 500. Compression space;

[0065] 60. Lifting assembly; 61. Cylinder; 611. Piston rod; 612. Lower pressure plate; 62. Elastic element. Detailed Implementation

[0066] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that the embodiments of this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the embodiments of this application with unnecessary detail.

[0067] It should also be understood that the term "and / or" as used in the specification of embodiments of this application and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0068] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0069] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0070] Furthermore, in the description of the embodiments and the appended claims of this application, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0071] In the description of embodiments in this application, references to "some embodiments" or "some embodiments" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in some embodiments," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiments, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" refers to two or more.

[0072] This application provides a display device, such as... Figure 1 As shown, the display device includes a base 10, a first display layer 20, a second display layer 30, a driving assembly 50, and a lifting assembly 60;

[0073] The first display layer 20 is slidably connected to the base 10, the second display layer 30 is mounted on the base 10, and the first display layer 20 is connected to the driving assembly 50.

[0074] The driving component 50 is installed in the middle of the base 10. The driving component 50 is used to drive the first display layer 20 to move in a direction away from or towards the second display layer 30.

[0075] The lifting assembly 60 is mounted on the base 10 and is used to drive the first display layer 20 to move in a direction perpendicular to the display surface of the first display layer 20.

[0076] The display device provided in this application embodiment drives the first display layer 20 through the driving component 50, so that the first display layer 20 moves away from the second display layer 30 (the display device expands) or moves closer to the second display layer 30 (the display device contracts). During the driving of the first display layer 20, the first display layer 20 and the second display layer 30 are not on the same plane, so there is a relatively large gap between them in the vertical direction. Therefore, the lifting component 60 drives the first display layer 20 to move in a direction perpendicular to its display surface, so that when the display device is expanded, the first display layer 20 and the second display layer 30 can be moved to the same plane, which helps to reduce the gap between the display layers and improve the display effect. When the display device is contracted, it also facilitates raising the height of the first display layer 20 to return it to its original position. Thus, the display device provided in this application embodiment can effectively reduce the gap between the first display layer 20 and the second display layer 30, thereby improving the display effect; moreover, the display device can be expanded or shrunk according to actual needs, greatly improving the applicability of the display device.

[0077] It should be noted that the first display layer 20 and the second display layer 30 are different display sub-screens of the display device, and the display surface of the first display layer 20 is the side of the first display layer 20 away from the second display layer 30.

[0078] In applications, such as Figures 1 to 4 As shown, the display device includes two states:

[0079] like Figure 1 and Figure 2 As shown, when the display device is in the first state (the original state can also be called the retracted state), the second display layer 30 is located under the orthographic projection of the first display layer 20, and the display screen of the display device is composed of the first display layer 20. That is, in the first state, the first display layer 20 can provide the display screen alone.

[0080] like Figure 3 As shown, when the display device is in the second state (extended state), the first display layer 20 is located on the side of the second display layer 30 away from the driving component 50, and the first display layer 20 and the second display layer 30 are located on the same plane. The display screen of the display device is composed of the first display layer 20 and the second display layer 30. That is, the second state can be provided by the first display layer 20 and the second display layer 30 together to provide the display screen.

[0081] The display device provided in this application embodiment can ensure that when in the extended state, each display screen (first display layer 20 and second display layer 30) is on the same plane, minimizing the gap between the screens and improving the display effect; the display device provided in this application embodiment can restore the extended display screen to the retracted state, and can be used cyclically, making the operation simple and convenient.

[0082] In some embodiments, such as Figure 4 As shown, the display device also includes a third display layer 40 located below the second display layer 30, and the third display layer 40 is slidably connected to the base 10;

[0083] The driving component 50 is also used to drive the third display layer 40 to move in a direction away from or towards the driving component 50. Having multiple display layers can further expand the maximum display area of ​​the display device, thereby meeting the need for a larger display area.

[0084] In applications, such as Figure 5 and Figure 6 As shown, the display device includes two states:

[0085] like Figure 5 As shown, when the display device is in the first state (the original state can also be called the retracted state), the third display layer 40 and the second display layer 30 are located under the orthographic projection of the first display layer 20, and the display screen of the display device is composed of the first display layer 20. That is, in the first state, the first display layer 20 can provide the display screen alone.

[0086] like Figure 6 As shown, when the display device is in the second state (extended state), the first display layer 20 is located on the side of the second display layer 30 away from the driving component 50, the third display layer 40 is located between the first display layer 20 and the second display layer 30, and the first display layer 20, the second display layer 30, and the third display layer 40 are located on the same plane. The display screen of the display device is composed of the first display layer 20, the second display layer 30, and the third display layer 40. That is, in the second state, the first display layer 20, the second display layer 30, and the third display layer 40 can jointly provide the display image. In this way, the display area of ​​the display device can be further increased, thereby meeting the display needs of a larger area.

[0087] It should be noted that when the display device is in its retracted state, the first display layer 20 is located at the top of the display device, and the second display layer 30 and the third display layer 40 are located below the orthographic projection of the first display layer 20. When the display device is in its extended state, the first display layer 20, the second display layer 30, and the third display layer 40 are perfectly joined to form the display screen of the display device, all on the same plane, and without any overlap. In application, the first display layer 20, the second display layer 30, and the third display layer 40 are display screens or display panels.

[0088] It should be noted that the display device also includes a third state, namely the state during the process of switching from the first state to the second state, or the state during the process of switching from the second state to the first state.

[0089] In applications, such as Figure 4 As shown, a first protective layer 21, which is a rigid protective layer, is provided on the side of the first display layer 20 closest to the second display layer 30. A second protective layer 31, also a rigid protective layer, is provided on the side of the second display layer 30 furthest from the first display layer 20 and corresponding to the position of the third display layer 40. A third protective layer 32, which is a smooth layer, is provided on the side of the second display layer 30 furthest from the first display layer 20 and corresponding to the position of the driving component 50. In a specific embodiment, the material of the rigid protective layer can be aluminosilicate glass, soda-lime glass, sapphire glass, polycarbonate, polymethyl methacrylate, etc. Thus, since the first display layer 20 moves back and forth relative to the second display layer 30 when the display device switches states, a rigid protective layer can effectively protect both the first and second display layers 20, preventing friction damage. The material of the smooth layer can be perfluoropolyether, fluorosilane, diamond-like carbon, silicon dioxide, polyurethane, silicone materials, etc. The purpose of the smoothing layer is to reduce the friction between the driving component 50 and the second display layer 30, and to prevent friction damage to the part where the second display layer 30 is connected to the driving component 50.

[0090] In some embodiments, such as Figure 4 and Figure 7As shown, the display device also includes a third display layer 40 located below the second display layer 30. The third display layer 40 has a positioning element 43 on the side near the driving component 50 for positioning and engaging with the second display layer 30. When the driving component 50 drives the third display layer 40, the engagement of the positioning element 43 clearly indicates whether the third display layer 40 has moved into position, improving ease of use. In application, the positioning element 43 includes a positioning groove 430 on the side of the third display layer 40 near the driving component 50 and a matching key 431 on the sidewall of the positioning groove 430. The third display layer 40 is driven by the driving component 50 to move away from the driving component 50. When the positioning groove 430 on the third display layer 40 moves to the side of the second display layer 30, the side of the second display layer 30 falls onto the positioning groove 430. The matching key 431 on the positioning groove 430 aligns with the side of the second display layer 30, thereby resulting in the second display layer 30 and the third display layer 40 being on the same plane. To ensure that the second display layer 30 and the third display layer 40 are on the same plane, the thickness of the third display layer 40 is slightly greater than that of the second display layer 30, and the depth of the positioning groove 430 is equal to the thickness of the second display layer 30. In this way, after the third display layer 40 moves to the preset position, the second display layer 30 can fall exactly into the positioning groove 430, and the second display layer 30 and the third display layer 40 can be on the same plane.

[0091] In some embodiments, such as Figure 4 and Figure 7 As shown, the base 10 includes a base plate 11 and a telescopic housing 12;

[0092] The substrate 11 has a mounting hole in the middle, and the drive assembly 50 is mounted in the mounting hole;

[0093] The telescopic housing 12 includes a sliding part 121 and a connecting part 122. The sliding part 121 is slidably connected to the substrate 11, and the connecting part 122 is connected to the first display layer 20.

[0094] A first guide groove 100 is formed between the substrate 11 and the telescopic housing 12. A first air passage 120 is provided in the telescopic housing 12 to connect the first guide groove 100 and the lifting assembly 60. The telescopic housing 12 and the first display layer 20 move toward or away from the drive assembly 50. The pressure in the first guide groove 100 and the first air passage 120 changes to provide a power source to the lifting assembly 60.

[0095] like Figure 8As shown, the telescopic housing 12 is moved by the drive assembly 50. When the telescopic housing 12 moves away from the drive assembly 50, that is, when the telescopic housing 12 and the first display layer 20 move away from the substrate 11 (the substrate 11 is fixed to the drive assembly 50 and does not move), the first guide groove 100 is compressed, resulting in an increase in air pressure in the first guide groove 100. This air pressure is transmitted to the lifting assembly 60 through the first air passage 120, thereby providing a power source for the lifting assembly 60. The advantage of this design is that while the drive assembly 50 is driving the telescopic housing 12 to move (and simultaneously driving the first display layer 20 to move away from the drive assembly 50), it can also provide power to the lifting assembly 60 so that after the first display layer 20 moves laterally to a preset position, it can be moved vertically so that it is on the same plane as the second display layer 30. Similarly, when the first display layer 20 needs to be contracted, the telescopic housing 12 moves toward the substrate 11, the pressure in the first guide groove 100 decreases, the gas flow direction changes, the lifting assembly 60 raises the first display layer 20, and the telescopic housing 12 returns to its original position, thus achieving contraction.

[0096] In some embodiments, such as Figure 4 and Figure 7 As shown, a first limiting member 111 is provided at the end of the substrate 11 away from the driving assembly 50, and a second limiting member 123 is provided on the side of the telescopic housing 12 near the opening of the first guide groove 100. The first limiting member 111 and the second limiting member 123 are limiting protrusions. The presence of the first limiting member 111 and the second limiting member 123 can form an elongated first guide groove 100 between the telescopic housing 12 and the substrate 11, and can position each other when the two move relative to each other to ensure that the first display layer 20 can move to a preset position.

[0097] Furthermore, in order to accelerate the transition of the display device from the extended state to the retracted state, magnetic components, specifically electromagnets, can be provided on the telescopic housing 12 and the drive assembly 50. When expansion is required, the electromagnet is not energized, and the telescopic housing 12 and the drive assembly 50 can be separated normally. When retraction is required, the electromagnet is energized to increase the attraction between the two, thereby achieving rapid retraction.

[0098] In applications, such as Figure 4 and Figure 7 As shown, the base 10 also includes a connecting housing 14 connected to the drive assembly 50. The connecting housing 14 is provided with a first magnetic element 141, and the telescopic housing 12 is provided with a second magnetic element 124. The first magnetic element 141 and the second magnetic element 124 are magnetically attracted to each other. In a specific embodiment, the first magnetic element 141 is a magnetic metal, and the second magnetic element 124 is an electromagnet; of course, the positions of the first magnetic element 141 and the second magnetic element 124 can be interchanged.

[0099] In some embodiments, such as Figure 4 and Figure 8 As shown, the lifting assembly 60 includes a cylinder 61 and an elastic element 62;

[0100] The cylinder 61 is mounted on the connecting part 122; in a specific embodiment, the cylinder 61 includes a piston rod 611 and a lower pressure plate 612. One end of the piston rod 611 is connected to the first air passage 120, and the other end of the piston rod 611 is connected to the lower pressure plate 612, which is connected to the connecting part 122.

[0101] One end of the elastic element 62 is connected to the connecting portion 122, and the other end is connected to the sliding portion 121. The thrust generated by the pressure change within the first air passage 120 is used to push the piston rod 611 of the cylinder 61, thereby driving the first display layer 20 to move in a direction perpendicular to the display surface of the first display layer 20. The first air passage 120 connects the top end of the cylinder 61 to the first guide groove 100, thereby enabling the thrust generated within the first guide groove 100 to push the piston rod 611. In application, the elastic element 62 is a spring.

[0102] In some embodiments, such as Figure 4 , Figures 7 to 11 As shown, the drive assembly 50 includes a motor 51 and a support nut 52;

[0103] The motor 51 is mounted in the middle of the base 10, specifically in the middle of the base plate 11. The motor 51 has a rotating shaft 511, and the surface of the rotating shaft 511 is threaded.

[0104] The support nut 52 is threadedly connected to the rotating shaft 511, and a compression space 500 is formed between the rotating shaft 511 and the nut. The side of the support nut 52 away from the rotating shaft 511 is connected to the second display layer 30.

[0105] The support nut 52 has a second air passage 520 connecting the telescopic housing 12 and the compression space 500. Rotation of the motor 51 causes pressure changes within the compression space 500. These pressure changes, through the second air passage 520, drive the telescopic housing 12 to move towards or away from the motor 51. This configuration, through the rotation of the motor 51, allows the first display layer 20 to move horizontally (i.e., along the length or width of the first display layer 20) following the sliding part 121 of the telescopic housing 12, and vertically (i.e., perpendicular to the thickness of the first display layer 20) following the connecting part 122 of the telescopic housing 12.

[0106] In some embodiments, such as Figure 7As shown, the base 10 also includes a support housing 13 connected to the motor 51. A third display layer 40 is slidably disposed on the support housing 13. The support nut 52 has an air hole 521, which connects the third display layer 40 to the compression space 500. Thus, the rotation of the motor 51 causes a pressure change in the compression space 500. The pressure change in the compression space 500 drives the third display layer 40 to move toward or away from the motor 51 through the air hole 521. This allows the third display layer 40 to expand. When the third display layer 40 moves to a preset position, the lifting assembly 60 moves the first display layer 20 to a height that is on the same plane as the third display layer 40. At this time, the second display layer 30 falls into the positioning groove 430 and positions itself with the third display layer 40, thus making the three display layers on the same plane.

[0107] In application, a second protective layer 31, i.e. a smooth layer, is provided between the support nut and the second display layer 30 to ensure that when the motor 51 rotates, only the nut rotates relative to it, while the second display layer 30 does not rotate, thereby reducing the friction between the two and protecting the second display layer 30 from damage.

[0108] In some embodiments, such as Figure 10 and Figure 11 As shown, the support nut 52 is also provided with a constraint groove 522 on the side away from the compression space 500. This allows the support nut 52 to move downwards along with the second display layer 30, thereby engaging with the third display layer 40.

[0109] In some embodiments, such as Figure 7 As shown, the base 10 also includes a connecting housing 14. The connecting housing 14 has a clearance groove 140 on the side near the rotating shaft 511, which is used to allow space for the support nut 52. Because the motor 51 rotating shaft 511 and the support nut 52 are threadedly engaged, when the rotating shaft 511 rotates, the support nut 52 will move downwards relative to the rotating shaft 511. At this time, the space provided by the clearance groove 140 for the support nut 52 allows it to fall smoothly, thus placing the second display layer 30, the third display layer 40, and the first display layer 20 on the same plane. In application, the first magnetic element 141 is provided on the connecting housing 14. The first magnetic element 141 is an electromagnet. The connecting housing 14 provides an installation position for the electromagnet and can also accommodate a power supply line for the electromagnet within the connecting housing 14.

[0110] In some embodiments, such as Figure 4 , Figures 7 to 11As shown, a second guide groove 200 is formed between the third display layer 40 and the supporting housing 13. A third limiting member 41 is provided at the end of the third display layer 40 near the supporting nut 52, and a fourth limiting member 131 is provided at the end of the supporting housing 13 away from the supporting nut 52. The third limiting member 41 and the fourth limiting member 131 are mutually limiting and engaging. The third limiting member 41 and the fourth limiting member 131 are limiting protrusions. Thus, during the movement of the third display layer 40, the presence of the third limiting member 41 and the fourth limiting member 131 ensures that the third display layer 40 moves to a preset position and engages with the second display layer 30.

[0111] In applications, such as Figure 7 As shown, the third display layer 40 is also provided with a third magnetic element 42 on the side near the support nut 52. The third magnetic element 42 is an opposite-shaped magnet. This arrangement can accelerate the shrinkage of the third display layer 40. Specifically, the support nut 52 is usually made of metal. By providing an opposite-shaped magnet on the side of the third display layer 40 near the support nut 52, when the display device needs to be shrunk, the opposite-shaped magnet can provide an attractive force, which facilitates the rapid shrinkage of the third display layer 40 and its magnetic fixation to the support nut 52.

[0112] In applications, such as Figure 7 As shown, a guide key is also provided on the side of the telescopic housing 12 away from the base plate 11. The presence of the guide key creates a clearance space between the telescopic housing 12 and the support housing 13 to facilitate the opening of the second air passage 520. Thus, pressure changes within the second air passage 520 push the guide key to move the entire telescopic housing 12.

[0113] In some embodiments, such as Figure 2 and Figure 3 As shown, the first display layer 20 has at least two layers, and the second display layer 30 has at least two layers. In a specific embodiment, as... Figures 12 to 17 As shown, the first display layer 20 and the second display layer 30 are respectively provided with two and four, etc. Furthermore, the third display layer 40 is also provided with two and four, etc.

[0114] In some embodiments, such as Figures 12 to 17As shown, the projections of the first display layer 20 and the second display layer 30 onto the base 10 are in the shape of any one of a rectangle, triangle, sector, pentagon, or hexagon. In application, the projection of the third display layer 40 onto the base 10 is in the shape of any one of a rectangle, triangle, sector, pentagon, or hexagon. The projections of the first display layer 20, the second display layer 30, and the third display layer 40 onto the base 10 can all be rectangles, or they can be different, such as rectangles, triangles, sectors, or hexagons. This arrangement effectively improves the applicability of the display device, allowing the shape and number of display layers to be designed according to different needs.

[0115] In some embodiments, such as Figure 4 , Figures 7 to 11 As shown, the display device includes a base 10, a first display layer 20, a second display layer 30, a third display layer 40, a driving assembly 50, and a lifting assembly 60;

[0116] The base 10 includes a substrate 11, a telescopic housing 12, a support housing 13, and a connecting housing 14. The telescopic housing 12 includes a sliding part 121 and a connecting part 122. The sliding part 121 is slidably connected to the substrate 11, and the connecting part 122 is connected to the first display layer 20. The third display layer 40 is slidably connected to the support housing 13.

[0117] The drive assembly 50 is mounted in the middle of the base plate 11. The drive assembly 50 includes a motor 51 and a support nut 52.

[0118] The motor 51 is mounted in the middle of the base plate 11. The motor 51 has a rotating shaft 511, and the surface of the rotating shaft 511 is threaded.

[0119] The support nut 52 is threadedly connected to the rotating shaft 511, and a compression space 500 is formed between the rotating shaft 511 and the support nut 52. The side of the support nut 52 away from the rotating shaft 511 is connected to the second display layer 30.

[0120] The lifting assembly 60 is mounted on the connecting part 122. The lifting assembly 60 includes a cylinder 61 and an elastic element 62.

[0121] Cylinder 61 is mounted on connecting part 122, one end of elastic member 62 is connected to connecting part 122, and the other end of elastic member 62 is connected to sliding part 121.

[0122] The support nut 52 has a second air passage 520 that connects the telescopic housing 12 and the compression space 500. The support nut 52 has an air hole 521 that connects the third display layer 40 and the compression space 500. The motor 51 rotates to change the pressure in the compression space 500. The pressure change in the compression space 500 drives the first display layer 20 and the third display layer 40 to move toward or away from the motor 51 through the second air passage 520.

[0123] A first guide groove 100 is formed between the substrate 11 and the telescopic housing 12. A first air passage 120 is provided in the telescopic housing 12 to connect the first guide groove 100 and the cylinder 61. The telescopic housing 12 moves toward the direction away from or toward the drive assembly 50. The pressure in the first guide groove 100 and the first air passage 120 changes to provide a power source to the cylinder 61.

[0124] The drive assembly 50 is used to drive the first display layer 20 to move in a direction away from or towards the motor 51 (moving in the length or width direction of the first display layer 20), and the lifting assembly 60 is used to drive the first display layer 20 to move in a direction perpendicular to the display surface of the first display layer 20 (i.e., moving up and down in the vertical direction).

[0125] The implementation principle of this application embodiment includes: when the display device is in a retracted state (i.e., small screen state), the electromagnet located on the connecting housing 14 is energized, and the electromagnet is attracted to the magnetic metal on the telescopic housing 12. At this time, all components are fixed and present a stable small screen state, and the display state is as follows. Figure 5 As shown;

[0126] When switching to the extended state is required, the electromagnet on the connecting housing 14 is de-energized, and the motor 51 is activated. The shaft 511 of the motor 51 begins to rotate, compressing the air in the compression space 500 through its cooperation with the support nut 52. The pressure in the compression space 500 increases, causing the gas to flow outward through the air hole 521 and the second air passage 520 on the support nut 52. At this time, the telescopic housing 12, which is connected to the second air passage 520, will move westward away from the motor 51. The telescopic housing 12 is connected to the first display layer 20, thereby driving the first display layer 20 to move outward until the first display layer 20 reaches the preset position. At the same time, the gas in the compression space 500 will also squeeze the third display layer 40 through the air hole 521, causing the third display layer 40 to move away from the motor 51. The motor 51 moves in the direction of movement; since there is a first guide groove 100 between the telescopic housing 12 and the substrate 11, when the telescopic housing 12 and the substrate 11 move relative to each other, the air in the first guide groove 100 is compressed, thereby providing thrust to the cylinder 61, pushing the first display layer 20 connected to the connecting part 122 downward until it is on the same plane as the third display layer 40; in addition, since the rotating shaft 511 of the motor 51 is constantly being selected, and the second display layer 30 is located above the support nut 52, under the rotation of the motor 51, the second display layer 30 will move downward and be positioned and fitted into the third display layer 40 after the third display layer 40 moves to the preset position. At this point, the three display layers are on the same plane, together forming the large display screen of the display device, and the display state is as follows. Figure 6 As shown. The contraction process is the reverse of the expansion process. It can be completed simply by reversing the motor 51 and using pressure reduction and magnetic attraction.

[0127] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0128] The above-described embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of the embodiments of this application.

Claims

1. A display device, characterized in that, include: Base; The first display layer is slidably connected to the base; The second display layer is mounted on the base; A driving component is installed in the middle of the base and connected to the first display layer. The driving component is used to drive the first display layer to move in a direction away from or towards the second display layer. A lifting assembly is mounted on the base, and the lifting assembly is used to drive the first display layer to move in a direction perpendicular to the display surface of the first display layer; The base includes: The substrate has a mounting hole in the middle, and the driving component is mounted in the mounting hole; The telescopic housing includes a sliding part and a connecting part, wherein the sliding part is slidably connected to the substrate and the connecting part is connected to the first display layer; A first guide groove is formed between the substrate and the telescopic housing. A first air passage is provided in the telescopic housing to connect the first guide groove and the lifting assembly. The telescopic housing and the first display layer move in a direction away from or towards the driving assembly. The pressure in the first guide groove and the first air passage changes to provide a power source to the lifting assembly.

2. The display device as described in claim 1, characterized in that, The display device includes two states: When the display device is in the first state, the second display layer is located under the orthographic projection of the first display layer, and the display screen of the display device is composed of the first display layer; When the display device is in the second state, the first display layer is located on the side of the second display layer away from the driving component, and the first display layer and the second display layer are located on the same plane. The display screen of the display device is composed of the first display layer and the second display layer.

3. The display device as described in claim 1, characterized in that, The display device further includes a third display layer located below the second display layer, the third display layer being slidably connected to the base; The driving component is also used to drive the third display layer to move in a direction away from the driving component or in a direction closer to the driving component; And / or, the display device further includes a third display layer located below the second display layer, the third display layer having a positioning element on the side near the driving component for positioning and engaging with the second display layer.

4. The display device as claimed in claim 1, characterized in that, The lifting assembly includes: A cylinder is mounted on the connecting part; An elastic element, one end of which is connected to the connecting part and the other end of which is connected to the sliding part, wherein the thrust generated by the pressure change in the first air passage is used to push the piston rod of the cylinder to drive the first display layer to move in a direction perpendicular to the display surface of the first display layer.

5. The display device as claimed in claim 1, characterized in that, The driving component includes: An electric motor is mounted in the middle of the base, and the electric motor has a rotating shaft with threads on its surface; A support nut is threadedly connected to the rotating shaft, and a compression space is formed between the rotating shaft and the support nut. The side of the support nut away from the rotating shaft is connected to the second display layer. The support nut has a second air passage that connects the telescopic housing and the compression space. The pressure in the compression space changes when the motor rotates, and the pressure change in the compression space drives the telescopic housing to move toward or away from the motor through the second air passage.

6. The display device as claimed in claim 5, characterized in that, The base also includes a support housing connected to the motor. A third display layer is slidably disposed above the support housing. The support nut is provided with an air hole, through which the third display layer is connected to the compression space. And / or, the support nut is further provided with a constraint groove on the side away from the compression space.

7. The display device as claimed in claim 6, characterized in that, A second guide groove is formed between the third display layer and the supporting housing. A third limiting member is provided at the end of the third display layer near the supporting nut, and a fourth limiting member is provided at the end of the supporting housing away from the supporting nut. The third limiting member and the fourth limiting member are in a limiting cooperation. And / or, the third display layer is further provided with a third magnetic element on the side near the support nut.

8. The display device as claimed in claim 5, characterized in that, The base also includes a connecting housing connected to the motor. The connecting housing is provided with a first magnetic element, and the telescopic housing is provided with a second magnetic element. The first magnetic element and the second magnetic element are magnetically attracted to each other. And / or, the base further includes a connecting housing, the connecting housing having a clearance groove on the side near the rotating shaft, the clearance groove being used to allow space for the support nut.

9. The display device according to any one of claims 1 to 8, characterized in that, The first display layer has at least two; And / or, the second display layer is provided with at least two; And / or, the shapes of the projections of the first display layer and the second display layer onto the base are any one of rectangle, triangle, sector, pentagon, and hexagon.

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