Display equipment with novel structure

Abstract

The invention discloses display equipment with a novel structure. The display equipment comprises a base, a rotating arm and a screen, the pivot end of the rotating arm is rotationally connected with the base, and the free end of the rotating arm is rotationally connected with the side edge of the screen, so that the screen at least has a first state and a second state and can be switched between the at least two states; when the screen is in a first state, the display surface of the screen is attached to the inner side surface of the base; when the screen is in the second state, the back face of the screen is attached to the inner side face of the base. The rotating arm is arranged to be connected with the base and the screen, the foldable screen is rotated through the rotating arm so as to achieve the storage function, and meanwhile the screen further has the multi-angle adjustment or 180-degree reverse rotation function so as to adapt to different use scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of display devices, and particularly relates to a display device with a novel structure. Background Art

[0002] With the popularization of display devices in scenarios such as human-computer interaction and mobile office, users' demands for the portability and adjustability of display devices are increasing day by day. For traditional fixed display devices, although the screen can be adjusted at multiple angles, it cannot be stored, is not convenient to carry, and is prone to damage to the screen or speakers when carried outdoors. Moreover, the screen cannot adapt to complex scenarios such as multi-posture hovering and 180° inversion; in the prior art, there is also disclosed a display device integrated with a suitcase. This product can store the screen in the box for easy carrying, but only supports a single unfolded state of the screen, has limited adjustable angles, and is also limited in scene adaptability, making it difficult to meet the flexible display requirements in complex environments. Summary of the Invention

[0003] The main object of the present invention is to provide a display device with a novel structure to solve the problem that the display devices in the prior art cannot simultaneously achieve screen storage and multi-angle adjustment.

[0004] To achieve the above object, the present invention provides a display device with a novel structure, including:

[0005] A base;

[0006] A rotating arm, the fulcrum end of the rotating arm is rotatably connected to the base; and

[0007] A screen, the free end of the rotating arm is rotatably connected to the side of the screen, so that the screen has at least a first state and a second state and can be switched between at least two states; when the screen is in the first state, the display surface of the screen is attached to the inner side surface of the base; when the screen is in the second state, the back surface of the screen is attached to the inner side surface of the base.

[0008] Optionally, the fulcrum end of the rotating arm is connected to the base through a first damping rotating shaft, and the first damping rotating shaft is used to resist the rotation of the rotating arm relative to the base; the free end of the rotating arm is connected to the screen through a second damping rotating shaft, and the second damping rotating shaft is used to resist the rotation of the screen relative to the screen.

[0009] Optionally, the angle range for the rotating arm to rotate around its fulcrum end is 0° to 320°, and the angle range for the screen to rotate around the free end of the rotating arm is 0° to 330°.

[0010] Optionally, a locking portion is provided on the side of the base, and a locking groove cooperating with the locking portion is provided at the free end of the rotating arm. When the screen is in the first state or the second state, the locking portion snaps into the locking groove.

[0011] Optionally, a sliding groove is formed on the side of the base, and the extending direction of the sliding groove is the same as that of the locking groove. The locking portion is movably disposed in the sliding groove so that the locking portion can movably snap into the locking groove.

[0012] Optionally, a speaker assembly is provided inside the base, and a sound transmission structure is provided on the inner side surface of the base.

[0013] Optionally, in the width direction of the base, the horizontal distance from the connection point of the free end of the rotating arm and the screen to the center point of the base is defined as L. When the screen is in the second state, the width of the exposed sound-emitting area is 2L.

[0014] Optionally, it includes at least two rotating arms, and the two rotating arms are arranged at intervals. The screen is rotatably disposed between the two rotating arms; the fulcrum ends of the two rotating arms are connected by a connecting rod to form a handle.

[0015] Alternatively, a handle is provided on one side of the base, and the handle is located between the two rotating arms.

[0016] Optionally, a bracket is hinged to the side of the base facing away from the inner side surface.

[0017] Optionally, the surface of the base and / or the screen is coated with a waterproof coating.

[0018] In the technical solution of the present invention, a display device with a novel structure includes a base, a rotating arm, and a screen. The screen is rotatably connected to the base through the rotating arm so that the screen has at least a first state and a second state. During use, the first state is the storage state, the display surface of the screen fits against the inner side surface of the base, forming a closed box with the base; the second state is the open state, the screen is flipped 180° to face the user, and the back surface of the screen fits against the inner side surface of the base. The display device of the present invention can realize the storage of the screen, is convenient to carry, and the screen is completely embedded in the storage state, which can avoid damage during transportation; at the same time, the screen can be adjusted at multiple angles or reversed 180°, and can adapt to the display in different postures and angles, improving the scene adaptability. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 Schematic structural diagram of the screen of the display device in the first state in an embodiment of the present invention;

[0021] Figure 2 Schematic structural diagram of the screen of the display device in the first state in another embodiment of the present invention;

[0022] Figure 3 Schematic structural diagram of the screen of the display device in the second state in an embodiment of the present invention;

[0023] Figure 4 For Figure 3 Side view;

[0024] Figure 5 For Figure 3 Schematic structural diagram of the unfolded state of the bracket of the display device in;

[0025] Figure 6 Schematic diagram of the movement range of the fulcrum end of the rotating arm in an embodiment of the present invention;

[0026] Figure 7 Schematic diagram of the movement range of the free end of the rotating arm in an embodiment of the present invention;

[0027] Figure 8 Schematic structural diagram of the screen of the display device in the third state in an embodiment of the present invention;

[0028] Figure 9 Schematic structural diagram of the screen of the display device in the fourth state in an embodiment of the present invention;

[0029] Figure 10 Schematic structural diagram of the rotating arm in an embodiment of the present invention;

[0030] Figure 11 Schematic structural diagram of the locking part in an embodiment of the present invention.

[0031] Explanation of the reference numerals in the drawings:

[0032]

[0033]

[0034] The implementation, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] See Figures 1 to 11 As shown, in an embodiment of the present invention, a display device 100 with a novel structure includes: a base 10, a rotating arm 20, and a screen 30; the fulcrum end 21 of the rotating arm 20 is rotatably connected to the base 10, and the free end 22 of the rotating arm 20 is rotatably connected to the side of the screen 30, so that the screen 30 has at least a first state and a second state, and can be switched between at least two states; when the screen 30 is in the first state, the display surface 31 of the screen 30 fits against the inner side surface 10a of the base 10; when the screen 30 is in the second state, the back surface 32 of the screen 30 fits against the inner side surface 10a of the base 10.

[0038] In the technical solution of the present invention, a display device 100 with a novel structure includes a base 10, a rotating arm 20, and a screen 30. The screen 30 is rotatably connected to the base 10 through the rotating arm 20, so that the screen 30 has at least a first state and a second state. In use, the first state is the storage state, and the display surface 31 of the screen 30 fits against the inner side surface 10a of the base 10, forming a closed box with the base 10; the second state is the open state, and the screen 30 is flipped 180° to face the user, and the back surface 32 of the screen 30 fits against the inner side surface 10a of the base 10. The display device 100 of the present invention can realize the storage of the screen 30, which is convenient for carrying. The screen 30 is completely embedded in the storage state, which can avoid damage during transportation; at the same time, the screen 30 can be adjusted at multiple angles or reversed 180°, which can adapt to displays in different postures and angles and improve the scene adaptability.

[0039] Specifically, electrical components such as a battery, a processor, and a control main board can also be arranged inside the base 10 of the present application. The processor can be connected to the screen 30 in a wired or wireless manner to control the screen 30. If a wired manner is adopted, the cable can be electrically connected to the screen 30 through the inside of the rotating arm 20. Several interfaces are provided on the side of the base 10 and are blocked by a detachable silica gel cover. The interfaces can include a charging port, a USB interface, an HDMI interface, etc.; the screen 30 can be an ordinary display screen or an interactive touch screen. Preferably, the outer shells of the base 10 and the screen 30 are designed in the shape of a box, and this outer shape structure is an integrated design with the base 10 and the screen 30. It can be understood that the back surface 32 of the screen 30 is the outer surface of the outer shell. When the screen 30 is in the first state (the storage state), the screen 30 and the base 10 are closed to form a box; particularly, the inner side surface 10a of the base 10 is recessed inward and slightly lower than the outer shell of the base 10, and the display screen of the screen 30 protrudes outward and is slightly higher than the outer shell of the screen 30. In the storage state, the display surface 31 of the screen 30 is embedded in the recessed surface of the base 10 and then fits against the inner side surface 10a of the base 10, which can further protect the screen 30 and prevent the screen 30 from being damaged during transportation; further, the corners of the outer shells of the base 10 and the screen 30 are provided with anti-collision edge wrapping, and materials such as metal and silica gel can be used to fully wrap or semi-wrap the corners according to actual needs, or a buffer layer can be embedded in the corners to achieve the protection function. With such a setting, on the one hand, integrating electrical components such as the battery inside the base 10 can effectively protect the electrical components, and the internal space of the base 10 is large, so a battery with a larger capacity can be set to improve the battery life of the display device 100; on the other hand, the base 10 and the screen 30 and their outer shells adopt an integrated design, which can achieve the waterproof function of the display device 100. Of course, at the expense of a certain waterproof performance, the outer shell can also be assembled in a split manner to save production costs. This embodiment is not limited to this, and the above are all within the protection scope of the present invention. It should be noted that a connecting portion protrudes from a long side of the base 10 of this embodiment, and the fulcrum end 21 of the rotating arm 20 is rotatably connected to this connecting portion. Of course, mounting holes or connecting portions can also be provided on the wide side of the base 20, and the fulcrum end 21 of the rotating arm 20 is rotatably connected to the mounting holes or connecting portions. Whether the rotating arm 20 is connected to the long side or the wide side of the base is also determined according to the actual shape of the screen and the rotation requirements, as long as the fulcrum end 21 of the rotating arm 20 can be rotatably connected to the base, which is not limited here; the structure of the rotating arm 20 is designed as a rod similar to the shape of "~". Without changing the connection points between the fulcrum end 21 and the free end 22 of the rotating arm 20, the rotating arm 20 can be designed into other shapes, such as a straight rod, etc.; the material of the rotating arm 20 can also be a carbon fiber composite material or a metal material according to actual needs to selectively achieve a lightweight or high-strength structure. This embodiment is not limited to this, and the above are all within the protection scope of the present invention.

[0040] The screen 30 of this embodiment has multiple states through the movement of the rotating arm 20. Some of the states are described below: As Figure 1 shown, it is the first state (storage state). At this time, the display device 100 is in the form of a box, which is convenient for outdoor carrying; as Figure 3 shown, it is the second state (inverted mode). At this time, the screen 30 is flipped 180° relative to the first state, which is suitable for outdoor KTV, live broadcast monitoring and other scenarios; as Figure 8 shown, it is the third state (normal mode). At this time, the display device 100 is similar to a laptop computer and is suitable for daily use scenarios; as Figure 9 shown, it is the fourth state (low-profile mode). At this time, the screen 30 is rotated 90° relative to the second state and is in a flat state, supported by the base 10, which is suitable for desktop-level use. It should be noted that through the fulcrum end 21 and / or the free end 22 of the movable rotating arm 20, the screen 30 can be displayed at any angle within the movement stroke, which will not be listed one by one here. This embodiment is not limited thereto, and all of the above are within the protection scope of the present invention.

[0041] See Figures 1 to 11As shown, further, in an embodiment of the present invention, the fulcrum end 21 of the rotating arm 20 is connected to the base 10 through a first damping rotating shaft (not shown in the figure), and the first damping rotating shaft is used to counter the rotation of the rotating arm 20 relative to the base 10; the free end 22 of the rotating arm 20 is connected to the screen 30 through a second damping rotating shaft (not shown in the figure), and the second damping rotating shaft is used to counter the rotation of the screen 30 relative to the screen 30. Specifically, the damping rotating shaft slows down the speed of the rotational movement through controllable resistance, generates resistance during the rotation process, and is used to counter the rotational forces generated by the self-weight or other external forces of the rotating arm 20 and the screen 30. So that when in use, a certain force needs to be applied to rotate the rotating arm 20 and the screen 30, avoiding impacts, collisions or vibrations caused by the rapid movement or inertia of the rotating arm 20 and the screen 30; at the same time, by setting the damping rotating shaft, the screen 30 can hover at any angle within the moving stroke without additional fixing devices, meeting the needs of users at different viewing angles. It should be noted that the damping rotating shaft can adopt hydraulic damping, friction damping or magnetic damping; two or more first damping rotating shafts and second damping rotating shafts can also be set, and multiple damping rotating shafts cooperate to counter the rotational forces of the rotating arm 20 and / or the screen 30 within the stroke range. In another embodiment, the first damping rotating shaft is set as a spring rotating shaft. Since the connection between the fulcrum end 21 of the rotating arm 20 and the base 10 is usually used to open or close the screen 30, by setting the connection of the spring rotating shaft, automatic opening and closing assistance can be realized through the elastic potential energy of the spring during opening and closing, saving manual operation. That is, when the fulcrum end 21 of the rotating arm 20 rotates to drive the screen 30 to open to a certain angle, the spring releases energy to offset the gravity of the screen 30, assisting the screen 30 to open or close automatically, making it more convenient for the user to open and close the screen 30. This embodiment is not limited thereto, and all of the above are within the protection scope of the present invention.

[0042] See Figures 1 to 11 As shown, further, in an embodiment of the present invention, the angle range for the rotating arm 20 to rotate around its fulcrum end 21 is 0° to 320°, and the angle range for the screen 30 to rotate around the free end 22 of the rotating arm 20 is 0° to 330°. Specifically, in this embodiment, the fulcrum end 21 of the rotating arm 20 and the degree of freedom both have a single degree of freedom. The movement range of the fulcrum end 21 is α, and the movement range of the free end 22 is β. As an example, the movement range of α is 0° to 320°, as Figure 6 shown, the α angle can be regarded as the opening angle of the screen 30; the movement range of β is 0° to 330°, as Figure 7As shown, the β angle can be regarded as the display angle of the screen 30; by cooperating to rotate the rotating arm 20 and the screen 30 to adjust the magnitudes of the α angle and the β angle, so that the screen 30 can be switched between the first state, the second state, the third state and the fourth state, or the screen 30 can be adjusted to other angles for hovering display; it should be noted that the above angles are only preferred in this embodiment, and in other embodiments, they can also be other angles, which can be adaptively adjusted according to the shapes and sizes of the base 10, the rotating arm 20 and the screen 30.

[0043] See Figures 1 to 11 As shown, further, in an embodiment of the present invention, a locking portion 40 is provided on the side of the base 10, and a locking groove 50 cooperating with the locking portion 40 is provided at the free end 22 of the rotating arm 20. When the screen 30 is in the first state or the second state, the locking portion 40 is snapped into the locking groove 50. Preferably, a convex block is provided on the end face of the locking portion 40 in this embodiment, and a locking groove 50 is provided at the free end 22 of the rotating arm 20 extending from the end portion in the extending direction of the rotating arm 20. The width of the locking groove 50 gradually decreases from the end portion in the extending direction of the groove, so that the convex block can be more easily snapped into the locking groove 50. It can be understood that since the rotating arm 20 can rotate around its fulcrum end 21, when the screen 30 is moved to the second state, the rotating arm 20 rotates to fit the locking groove 50 onto the convex block to achieve the locking cooperation between the rotating arm 20 and the base 10. It should be noted that the locking groove 50 can also be set as a jack, and the locking portion 40 can be set as a plug, a pin or other structures cooperating with the jack. When the rotating arm 20 is in place, the two are inserted together or in an interference fit to achieve the locking of the rotating arm 20; the locking groove 50 can also be set as a snap groove, and the locking portion 40 can be set as a snap, a lock or the like, and the locking of the rotating arm 20 is achieved by snapping the two together; or the locking portion 40 and the locking groove 50 can be set as magnetic structures, such as magnets. After the rotating arm 20 is in place, the rotating arm 20 and the locking portion 40 are magnetically adsorbed to each other to achieve the locking of the rotating arm 20. This embodiment is not limited thereto, and the above are all within the protection scope of the present invention. Since the locking between the rotating arm 20 and the base 10 is achieved by providing the locking portion 40 and the locking groove 50, when the screen 30 is in the second state and the display device 100 is hung in the vehicle or in other moving states, it is not easily affected by external forces, resulting in the displacement or shaking of the screen 30.

[0044] See Figures 1 to 11As shown, further, in an embodiment of the present invention, a sliding groove is provided on the side of the base 10, and the extending direction of the sliding groove is the same as that of the locking groove 50. The locking portion 40 is movably disposed in the sliding groove so that the locking portion 40 can be movably snapped into the locking groove 50. Specifically, in this embodiment, the locking portion 40 includes a seat body and a "T"-shaped protrusion. The "T"-shaped structure design makes it not easy to fall off after being snapped into the locking groove 50. The seat body is movably disposed in the sliding groove (not shown in the figure) on the side of the base 10. By providing the sliding groove, when the locking portion 40 cooperates with the locking groove 50, the "T"-shaped protrusion can more easily slide into the locking groove 50; preferably, the groove widths of the sliding groove and the locking groove 50 are both gradually narrowing structures, and the narrowing directions of both are the same, that is, the closer the seat body slides towards the narrowing direction of the locking groove 50, the tighter it will be until it cannot slide further. At this time, the seat body is tightened in the sliding groove under the damping effect, so that the "T"-shaped protrusion is not easily loosened and fallen out of the locking groove 50 due to external force. It should be noted that the same function as above can also be achieved by providing a sliding groove on the seat body, that is, the seat body is fixedly arranged on the side of the base 10, a sliding groove is provided on the end face of the seat body, and the "T"-shaped protrusion is disposed in the sliding groove. The cooperation between the locking groove 50 and the locking portion 40 is realized by sliding the "T"-shaped protrusion. Of course, the shape of the protrusion can also be spherical, dovetail-shaped, inverted triangular, etc., as long as it can be snapped into the locking groove 50 to complete the locking. This embodiment is not limited thereto, and the above are all within the protection scope of the present invention.

[0045] See Figures 1 to 11 As shown, further, in an embodiment of the present invention, a horn assembly is provided inside the base 10, and a sound transmission structure 60 is provided on the inner side surface 10a of the base 10. It should be noted that the inner side surface 10a of the base 10 in this embodiment is provided with a mesh sound transmission structure 60, and the sound transmission cloth is fixedly installed on the inner side surface 10a of the base 10 by means of spraying glue, connectors, etc.; it is also possible to preset a support frame inside the base 10 and lay the sound transmission cloth on the frame; preferably, a waterproof film, a dust-proof net, etc. can also be provided to form a multi-layer composite structure with the sound transmission cloth to improve the dust-proof and waterproof performance of the base 10 and avoid damage to the internal horn. Of course, in some other embodiments, the sound transmission structure 60 can also be in the form of setting the inner side surface 10a of the base 10 as a micro-perforated plate or a micro-grille plate; or the inner side surface 10a is set as a metal plate, and a number of sound transmission holes are opened on the metal plate. This embodiment is not limited thereto, and the above are all within the protection scope of the present invention. By arranging the horn assembly inside the base 10, it is possible to avoid the horn being exposed, resulting in easy dust accumulation or damage to the horn, and when in use, the sound direction of the horn faces the user, forming an optimal sound listening area and improving the user experience; at the same time, the horn arranged inside can form a box resonance cavity, and the sound quality is better than that of the exposed horn.

[0046] See Figures 1 to 11As shown, further, in an embodiment of the present invention, in the width direction of the base 10, the horizontal distance from the connection point of the free end 22 of the rotating arm 20 to the center point of the screen 30 to the center point of the base 10 is defined as L. When the screen 30 is in the second state, the width of the exposed sound-emitting area is 2L. It should be noted that, as Figure 4 shown, the connection point of the free end 22 of the rotating arm 20 to the screen 30 is eccentrically arranged. With this arrangement, when the screen 30 is in the second state, the screen 30 does not block the sound-emitting area, and the effective exposure of the speaker area is maintained. Preferably, a switch button and volume up / down buttons are provided on the exposed sound-emitting area. It can be understood that after the screen 30 is opened, no matter how it is flipped and in what state, this speaker area is exposed to the outside, which does not affect the sound propagation of the internal speaker, and the user can receive sound well and conveniently control the switch and volume adjustment of the speaker.

[0047] See Figures 1 to 11 As shown, further, in an embodiment of the present invention, it includes at least two rotating arms 20, the two rotating arms 20 are arranged at intervals, and the screen 30 is rotatably arranged between the two rotating arms 20; the fulcrum ends 21 of the two rotating arms 20 are connected by a connecting rod to form a handle 70; alternatively, a handle 70 is provided on one side of the base 10, and the handle 70 is located between the two rotating arms 20. It should be noted that in this embodiment, there are two rotating arms 20, and the above-mentioned locking parts 40 and / or sliding grooves are provided on both sides of the base 10 and are symmetrically arranged. As Figure 1 shown, in this embodiment, the two rotating arms 20 are connected by a connecting rod, and the two rotating arms 20 and the connecting rod form a complete handle 70. In this way, the convenience of carrying the display device 100 can be improved, and at the same time, the display device 100 can be hung on the wall through the handle 70, enriching the scene application of the display device 100. As Figure 2 shown, in another embodiment, a handle 70 is provided on one side of the base 10, and the handle 70 is located between the two rotating arms 20. At this time, the handle 70 is independently arranged from the two rotating arms 20. The beneficial effects of this method are the same as those described above and will not be elaborated here.

[0048] See Figures 1 to 11 As shown, further, in an embodiment of the present invention, a bracket 80 is hinged to the side of the base 10 facing away from the inner side surface 10a. It should be noted that the bracket 80 in this embodiment is a support plate and is arranged on the back of the base 10 through a rotating shaft. As Figure 5As shown, when it is necessary to make the display device 100 stand, it is supported by opening the support plate at the back, and the support angle can be adjusted by rotating the support plate through a rotating shaft; the bracket 80 can also be set in the form of a support rod and hinged to the base 10 through a structure such as a universal joint. This embodiment is not limited thereto, and all of the above are within the protection scope of the present invention. Preferably, a groove matching the support plate is provided on the back surface of the base 10. In this way, when the bracket 80 is in the storage state, the support plate can be completely embedded in the base 10 to maintain the integrity and aesthetic appearance of the display device 100.

[0049] See Figures 1 to 11 As shown, further, in an embodiment of the present invention, a waterproof coating is applied to the surface of the base 10 and / or the screen 30. It should be noted that in this embodiment, a waterproof coating is applied to the surface of the base 10 and the screen 30 to form a protective film to block moisture from penetrating into the box body and prevent internal electrical components from being damaged. The waterproof coating can be polyurethane paint, acrylic paint, etc.; further, the waterproof function can also be achieved by providing a waterproof rubber strip around the base 10 or the screen 30. When the screen 30 is in the closed state, the waterproof rubber strip is squeezed at the connection between the base 10 and the screen 30 to seal the gap between the base 10 and the screen 30 and prevent water from flowing into the interior through the gap, meeting the waterproof requirements of the display device 100.

[0050] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the description and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A display device with a new structure, characterized in that: include: Pedestal; A rotating arm, a fulcrum end of the rotating arm being rotatably connected to the base; as well as The free end of the rotating arm is rotatably connected to the side of the screen, so that the screen has at least a first state and a second state, and can be switched between at least two states; when the screen is in the first state, the display surface of the screen is attached to the inner side surface of the base; when the screen is in the second state, the back surface of the screen is attached to the inner side surface of the base.

2. The display device according to claim 1, characterized in that The fulcrum end of the rotating arm is connected to the base via a first damping shaft, and the first damping shaft is used to counteract the rotation of the rotating arm relative to the base; the free end of the rotating arm is connected to the screen via a second damping shaft, and the second damping shaft is used to counteract the rotation of the screen relative to the screen.

3. The display device according to claim 1, characterized in that The rotation angle range of the rotating arm around its fulcrum end is 0° to 320°, and the rotation angle range of the screen around the free end of the rotating arm is 0° to 330°.

4. The display device according to claim 1, characterized in that A locking portion is provided on the side of the base, and a locking groove matched with the locking portion is provided at the free end of the rotating arm. When the screen is in the first state or the second state, the locking portion is inserted into the locking groove.

5. The display device according to claim 4, characterized in that A sliding groove is provided on the side of the base, the extending direction of the sliding groove is consistent with the locking groove, and the locking portion is movably arranged in the sliding groove so that the locking portion can be movably inserted into the locking groove.

6. The display device according to claim 1, characterized in that A speaker assembly is arranged inside the base, and a sound-transmitting structure is arranged on the inner side surface of the base.

7. The display device according to claim 6, characterized in that In the width direction of the base, a horizontal distance from a connection point between the free end of the rotating arm and the screen to a center point of the base is defined as L. When the screen is in the second state, a width of the exposed sound emitting area is 2L.

8. The display device according to any one of claims 1 to 7, characterized in that: It comprises at least two rotating arms, the two rotating arms are arranged at intervals, and the screen is rotatably arranged between the two rotating arms; The fulcrum ends of the two rotating arms are connected by a connecting rod to form a handle; Alternatively, a handle is provided on one side of the base, and the handle is located between the two rotating arms.

9. The display device according to any one of claims 1 to 7, characterized in that: A bracket is hingedly connected to a side of the base facing away from the inner side surface.

10. The display device according to any one of claims 1 to 7, characterized in that: The surface of the base and / or the screen is coated with a waterproof coating.

Images