Expansion screen

Abstract

The utility model discloses an expansion screen which comprises a first display screen, a second display screen and a third display screen, the second display screen is connected to the top end of the first display screen, and the third display screen is connected to the left side edge or the right side edge of the second display screen. The first display screen and the third display screen are arranged on the base, so that the first display screen and the third display screen can form opposite angles, and when the first display screen and the third display screen form opposite angles, a placing position is formed below the third display screen and close to the first display screen, and the placing position can be used for placing a display screen of computer equipment. The extension screen comprises three display screens, two display screens are transversely arranged at the upper part, and one display screen is arranged at the lower part, so that a placing position for placing the display screen of the computer equipment is formed, and the four display screens are gathered, so that a user can watch and use the computer equipment more conveniently.

Description

Technical Field

[0001] The utility model relates to an extended screen, which is applied to the technical field of computer accessories. Background Art

[0002] In the prior art, computers have become essential items in people's lives. With the growth of people's needs, extended screens have emerged accordingly. In the past, terminal products such as laptops and desktop displays had their screen sizes determined during the production process. However, in actual applications, it is difficult to meet consumers' demands for multiple screens or large screens. Therefore, in order to meet consumers' needs, split-screen display technology is usually adopted to achieve the multi-screen display effect.

[0003] However, existing extended screens are basically clamped on the display screen of computer devices. In order to make the displayed image wider, single extended screens are usually installed above, to the left, and to the right of the display screen of computer devices. However, this installation method has several problems. First, due to the overweight of the three single extended screens, it is very easy to damage the display screen of computer devices. Second, this installation method is in an inverted "T" shape, which is not convenient for users to view. Third, it is not convenient to carry multiple single extended screens. Fourth, the horizontal installation of two extended screens on the display screen of computer devices takes up a large amount of space. Therefore, it causes troubles to users. Summary of the Invention

[0004] In view of the problem that existing extended screens in the prior art are basically clamped on the display screen of computer devices. In order to make the displayed image wider, single extended screens are usually installed above, to the left, and to the right of the display screen of computer devices, but this installation method is not convenient for users to use and view, the utility model provides an extended screen. The extended screen includes three display screens, with two horizontal display screens above and one display screen below, forming a placement position for placing the display screen of a computer device. The four display screens are gathered together, which is more convenient for users to view and use.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an extended screen, the extended screen includes a first display screen, a second display screen, and a third display screen. The second display screen is connected to the top end of the first display screen, and the third display screen is connected to the left side or the right side of the second display screen, so that the first display screen and the third display screen can form a diagonal. When the first display screen and the third display screen form a diagonal, a placement position is formed below the third display screen and close to the first display screen, and the placement position can be used to place the display screen of a computer device.

[0006] Further, both the first display screen and the third display screen are rotatably connected to the second display screen, and the first display screen and the third display screen are rotated to be stacked on the second display screen.

[0007] Further, the extended screen further includes a first rotating connecting member. One end of the first rotating connecting member is fixedly connected to the second display screen. The first rotating connecting member is rotatably arranged at the top end of the first display screen. And the display surface of the first display screen can be rotated through the rotation of the first rotating connecting member to be attached to the display surface of the second display screen. The first display screen can be rotated relative to the second display screen by at least 180° through the first rotating connecting member.

[0008] Further, the first rotating connecting member includes a first connecting plate and a first connecting shaft cylinder. The first connecting plate is arranged on the side surface of the first connecting shaft cylinder. The first connecting shaft cylinder is in damping rotational connection with a first connecting portion on the first display screen. The first connecting plate is fixedly connected to the second display screen through a fixing member. And when the first display screen is unfolded to the maximum angle relative to the second display screen, the connecting side edge between the second display screen and the first display screen is located on the back surface of the second display screen.

[0009] Further, an installation notch is provided on the side edge of the first display screen close to the second display screen. A cover plate is provided on the display surface of the second display screen and close to the first display screen. When the first display screen is connected to the second display screen, the cover plate is arranged at the installation notch. A first wire passing hole is provided on one side wall of the installation notch. A second wire passing hole is provided at one end of the cover plate close to the first wire passing hole. And the inside of the cover plate is communicated with the inside of the second display screen.

[0010] Further, the extended screen further includes a second rotating connecting member. One end of the second rotating connecting member is fixedly connected to the third display screen. The second rotating connecting member is rotatably arranged on the left side edge or the right side edge of the second display screen. And the back surface of the third display screen can be rotated through the rotation of the second rotating connecting member to be attached to the back surface of the second display screen. The third display screen can be rotated relative to the second display screen by at least 180° through the second rotating connecting member.

[0011] Further, the second rotating connecting member includes a second connecting plate and a second connecting shaft cylinder. The second connecting plate is arranged on the side surface of the second connecting shaft cylinder. The second connecting shaft cylinder is in damping rotational connection with a second connecting portion on the second display screen. The second connecting plate is fixedly connected to the third display screen through a fixing member. And when the third display screen is unfolded to the maximum angle relative to the second display screen, the connecting side edge between the third display screen and the second display screen is located on the back surface of the second display screen.

[0012] Further, the extended screen further includes a bracket and a foot pad. The supporting cross bar of the bracket is provided with a foot pad mounting position, and the foot pad is detachably mounted at the foot pad mounting position. The foot pad mounting position is provided with a clamping hole and an opening. The opening is arranged on the outer side surface of the supporting cross bar, and the clamping hole communicates with the opening. The foot pad includes a shell and a clamping column. The shell includes a U-shaped mounting groove. The shell can be inserted into the foot pad mounting position through the U-shaped mounting groove. The clamping column is longitudinally arranged in the U-shaped mounting groove, and the clamping column can pass through the opening and be clamped in the clamping hole. When the clamping column is clamped in the clamping hole, the outer side surface of the foot pad protrudes from the outer side surface of the bracket.

[0013] Further, the extended screen further includes a connection interface. A first groove is arranged on the side of the first display screen, the second display screen or the third display screen, and the connection interface is arranged in the first groove; the connection interface is arranged on the side of the first display screen close to the third display screen; a first baffle is arranged on one side of the first groove close to the display surface of the first display screen, the display surface of the second display screen or the display surface of the third display screen, and the first baffle is arranged along the length of the first groove.

[0014] Further, the extended screen further includes a display screen control key. A second groove is arranged on the side of the first display screen, the second display screen or the third display screen, and the second groove is arranged on the opposite side of the side of the first groove. The display screen control key is arranged in the second groove; a second baffle is arranged on one side of the second groove close to the display surface of the first display screen, the display surface of the second display screen or the display surface of the third display screen, and the second baffle is arranged along the length of the second groove, and the top end of the display screen control key does not exceed the outer side edge of the second baffle.

[0015] The beneficial effects of the present utility model: The present utility model provides an extended screen. Since the extended screen includes three display screens, with two horizontal display screens above and one display screen below, a placement position for placing a computer device's display screen is formed. The four display screens gather together, making it more convenient for users to view and use; both the first display screen and the third display screen can be rotatably connected to the second display screen, so it can be folded, which is convenient for users to carry and use. Description of the Drawings

[0016] Figure 1 is a three-screen unfolded perspective view of the extended screen provided by the present utility model;

[0017] Figure 2 is an exploded view of the three-screen unfolded extended screen provided by the present utility model;

[0018] Figure 3 is provided by the present utility modelFigure 2 Enlarged view of A;

[0019] Figure 4 This is provided by the present utility model Figure 2 Enlarged view of B;

[0020] Figure 5 This is provided by the present utility model Figure 2 Exploded view from another perspective;

[0021] Figure 6 This is provided by the present utility model Figure 1 Stereogram from another perspective;

[0022] Figure 7 Stereogram of the extended screen with two screens unfolded provided by the present utility model;

[0023] Figure 8 Stereogram of the extended screen using one screen provided by the present utility model;

[0024] Figure 9 Exploded view of the bracket provided by the present utility model;

[0025] Figure 10 This is provided by the present utility model Figure 9 Enlarged view of E;

[0026] Figure 11 Stereogram of the foot pad provided by the present utility model;

[0027] Figure 12 This is provided by the present utility model Figure 5 Enlarged view of C;

[0028] Figure 13 This is provided by the present utility model Figure 6 Enlarged view of D. Detailed implementation manners

[0029] To make the objectives, technical solutions and effects of the present utility model clearer and more definite, the following further elaborates on the present utility model with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] Please refer to Figure 1-13, an extended screen provided by the present utility model, the extended screen includes a first display screen 1, a second display screen 2 and a third display screen 3. The second display screen 2 is connected to the top 101 of the first display screen 1, and the third display screen 3 is connected to the left side 201 or the right side 2011 of the second display screen 2, so that the first display screen 1 and the third display screen 3 can form a diagonal. When the first display screen 1 and the third display screen 3 can form a diagonal, a placement position 100 is formed near the first display screen 1 below the third display screen 3. As Figure 1 shown, the placement position 100 can be used for placing the display screen of the device connecting to the extended screen; that is to say, through the extended screen including three display screens, with two horizontal display screens above and one display screen below, a placement position for placing the display screen of a computer device is formed. Then, when four display screens gather, they can form a large display screen, which is more convenient for users to view and use.

[0031] In this embodiment, both the first display screen 1 and the third display screen 3 are rotatably connected to the second display screen 2, and the first display screen 1 and the third display screen 3 are rotated to be stacked on the second display screen 2. As Figure 8 shown, that is, the extended screen can be folded, which is convenient for users to carry and use.

[0032] In this embodiment, as Figure 6 shown, the extended screen further includes a first rotating connecting member 4. One end of the first rotating connecting member 4 is fixedly connected to the second display screen 2. The first rotating connecting member 4 is rotatably arranged at the top 101 of the first display screen 1, and the display surface 102 of the first display screen 1 can be rotated to fit the display surface 202 of the second display screen 2 through the rotation of the first rotating connecting member 4. The first display screen 1 can be rotated relative to the second display screen 2 by at least 180° through the first rotating connecting member 4. The structural setting is simple, which is convenient for the assembly of the first display screen 1 and the second display screen, and is convenient for users to rotate the first display screen or the second display screen.

[0033] In this embodiment, as Figure 5 shown, the first rotating connecting member 4 includes a first connecting plate 41 and a first connecting shaft cylinder 42. The first connecting plate 41 is arranged on the side surface 421 of the first connecting shaft cylinder 42. The first connecting shaft cylinder 42 is in damping rotational connection with a first connecting portion 11 on the first display screen 1. The first connecting plate 41 is fixedly connected to the second display screen 2 through a fixing member. When the first display screen 1 is unfolded to the maximum angle relative to the second display screen 2, the side edge of the second display screen 2 connected to the first display screen 1 is located on the back surface of the first display screen 1. This structure makes the display surfaces of the first display screen and the second display screen approximately seamlessly connected when the first display screen is opened relative to the second display screen, improving the viewing and using experience of users.

[0034] In this embodiment, as Figure 5As shown in the figure, an installation notch 12 is provided on the side of the first display screen 1 close to the first display screen 1. A cover plate 22 is provided on the display surface 202 of the second display screen 2 and close to the first display screen 1. When the first display screen 1 is connected to the second display screen 2, the cover plate 22 is arranged at the installation notch 12. A first wire passing hole 121 is provided on one side wall of the installation notch 12. One end of the cover plate 22 close to the first wire passing hole 121 is provided with a second wire passing hole 221, and the inside of the cover plate 22 communicates with the inside of the second display screen 2, so that the wire can pass through the first wire passing hole and the second wire passing hole, facilitating the electrical connection between the first display screen and the second display screen. And when the first display screen and the second display screen move, such a structural setting enables the wire to be hidden and move in the cover plate, without damaging the wire, and also makes the overall appearance of the extended screen more tidy. From the display surface, the display surface of the first display screen and the display surface of the second display screen are closely connected without gaps. It is recommended that the installation notch be arranged in the middle of the side of the first display screen, and the first rotating connector be arranged on both sides of the notch, so that the rotation between the first display screen and the second display screen is more stable, and it is also more convenient to connect the wire between the first display screen and the second display screen. The sizes of the first wire passing hole and the second wire passing hole can be set according to the number and thickness of the wires passing through. The wire passing between the second display screen and the third display screen is the same as that between the second display screen and the first display screen. An installation notch is provided on the side of the third display screen close to the second display screen. A wire passing hole is provided on one side wall of the installation notch. A cover plate is provided on the back of the second display screen, and one end of the cover plate is also provided with a wire passing hole. Such a structural design makes the overall appearance of the extended screen more tidy. From the display surface, the display surface of the third display screen and the display surface of the second display screen are closely connected without gaps.

[0035] In this embodiment, as Figure 6 shown, the extended screen further includes a second rotating connector 5. One end of the second rotating connector 5 is fixedly connected to the third display screen 3. The second rotating connector 5 is rotatably arranged on the left side 201 or the right side 2011 of the second display screen 2, and the back surface 301 of the third display screen 3 can be rotated to fit with the back surface 203 of the second display screen 2 through the rotation of the second rotating connector 5. The third display screen 3 can be rotated relative to the second display screen 2 by at least 180° through the second rotating connector 5. The structural setting is simple, facilitating the assembly of the third display screen and the second display screen, and facilitating the user to rotate the third display screen or the second display screen.

[0036] In this embodiment, as Figure 5As shown, the second rotating connecting member 5 includes a second connecting plate 51 and a second connecting shaft cylinder 52. The second connecting plate 51 is disposed on the side surface 521 of the second connecting shaft cylinder 52. The second connecting shaft cylinder 52 is in damping rotational connection with the second connecting portion 21 on the second display screen 2. The second connecting plate 51 is fixedly connected to the third display screen 3 through a fixing member. When the third display screen 3 is unfolded to the maximum angle relative to the second display screen 2, the connecting side edge of the third display screen 3 and the second display screen 2 is located on the back surface 203 of the second display screen 2. This structure enables the display surfaces of the third display screen and the second display screen to be approximately seamlessly connected when the third display screen is opened relative to the second display screen, improving the user's viewing and using experience.

[0037] That is to say, as Figure 1 , 8 , and 7 show, the third display screen can be folded on the back surface of the second display screen, and the first display screen can be folded on the front surface of the second display screen. Then, when the first display screen and the third display screen are folded together on the second display screen, the extended screen forms a cube shape, which is convenient for the user to carry. And such a state can also be used. When the third display screen is used alone for display, as Figure 8 shows, and the extended screen of this structure can be used for two-screen display, that is, the third display screen is folded on the second display screen, as Figure 7 shows. Only the first display screen and the second display screen are unfolded, or three-screen display can be used, that is, all three display screens are unfolded, as Figure 1 shows. It has multiple uses and is convenient for the user to select according to the environment.

[0038] In this embodiment, as Figure 6 shows, the extended screen further includes a bracket 6. The bracket 6 is rotatably disposed on the first display screen 1 and is used to support the extended screen. However, it is not limited to only setting a bracket. A hanging bracket can be set and hung on the display screen of the computer device. However, it is recommended that a small-sized extended screen of this structure can be set to hang on the display screen of the computer device. If a large-sized extended screen of this structure is hung on the display screen of the computer device, it is easy to damage the display screen of the computer device, and the display screen of the computer device cannot bear the large-sized extended screen either. The extended screen in this embodiment is mainly applicable to a laptop computer, and the space of the placement position is mainly set according to the length and width dimensions of the display screen of the laptop computer on the market.

[0039] In this embodiment, as Figure 6As shown, the extended screen further includes two third rotating connectors 7. The bracket 6 is a U-shaped bracket. The two third rotating connectors 7 are rotatably arranged on the back surface 1021 of the first display screen 1. One third rotating connector 7 is arranged near the first side edge 103 of the first display screen 1, and the other third rotating connector 7 is arranged near the second side edge 104 of the first display screen 1. The first side edge 103 and the second side edge 104 of the first display screen 1 are oppositely arranged. The two ends of the U-shaped bracket are connected to the third rotating connectors 7. The U-shaped bracket has high supporting force, is lightweight, and is also convenient for assembly and setting.

[0040] In this embodiment, as Figure 6 , 9 , as shown in FIGS. 10, anti-slip pads 62 are provided on the supporting cross bar 61 of the U-shaped bracket. The anti-slip pads 62 protect the bracket and prevent the bracket from being worn. Generally, the anti-slip pads are made of slightly elastic materials such as plastic, rubber or silica gel, etc., and have friction, making the bracket more stable when supporting.

[0041] In this embodiment, as Figure 9 , 10 shown, the supporting cross bar 61 of the U-shaped bracket is provided with anti-slip pad mounting positions 611. The anti-slip pads 62 are detachably mounted at the anti-slip pad mounting positions 611. When the anti-slip pads 62 are mounted at the anti-slip pad mounting positions 611, the outer side surfaces of the anti-slip pads 62 protrude from the outer side surface of the bracket 6. That is to say, by providing detachable anti-slip pads at the supporting ends of the bracket, and the outer side surfaces of the anti-slip pads protrude from the outer side surface of the bracket, when using the anti-slip pads for support, the wear of the supporting ends of the bracket can be reduced, protecting the supporting ends of the bracket, and the anti-slip pads are detachably arranged on the bracket. If the anti-slip pads are worn, it is convenient for users to replace the anti-slip pads.

[0042] In this embodiment, as Figure 10 , 11 shown, the anti-slip pad mounting positions 611 are provided with card holes 6111 and openings 6112. The openings 6112 are arranged on the outer side surface of the supporting cross bar 61. The card holes 6111 are communicated with the openings 6112. The anti-slip pads 62 include a housing 621 and a clamping column 622. The housing 621 includes a U-shaped mounting groove 6211. The housing 621 can be inserted into the anti-slip pad mounting positions 611 through the U-shaped mounting groove 6211. The clamping column 622 is longitudinally arranged in the U-shaped mounting groove 6211, and the clamping column 622 can pass through the opening 6112 and be clamped in the card hole 6111, so that the anti-slip pads are firmly mounted at the anti-slip pad mounting positions 611. Due to the structural settings of the anti-slip pads 62 and the card holes 6111 and the openings 6112, first, for the factory, the card holes 6111 and the openings 6112 can be molded together when the bracket is demolded, saving processes. The housing 621 and the clamping column 622 are preferably integrally formed, which is also convenient for demolding. The installation process of the anti-slip pads is simple and convenient for users to install and disassemble.

[0043] In this embodiment, asFigure 10 As shown, a connecting through-hole 6113 is provided between the opening 6112 and the card hole 6111. The transverse diameter of the connecting through-hole 6113 is smaller than the transverse diameters of the card hole 6111 and the opening 6112. The setting of the connecting through-hole 6113 makes it more convenient for users to install the foot pad and also makes the installation of the foot pad more stable.

[0044] In this embodiment, as Figure 10 shown, the two side surfaces of the connecting through-hole 6113 are arc surfaces, which is equivalent to that the connecting through-hole 6113 is a transition section, making it simpler and more labor-saving for users to install.

[0045] In this embodiment, as Figure 11 shown, when the card hole 6111, the opening 6112 and the clamping posts 622 are all provided with three foot pads and the foot pads have a certain length, the stability of supporting the extended screen is higher.

[0046] In this embodiment, as Figure 12 shown, the extended screen further includes a connection interface 8. A first groove 13 is provided on the side of the first display screen 1, the second display screen 2 or the third display screen 3. The connection interface 8 is arranged in the first groove 13, making the overall appearance of the extended screen more beautiful and having a sense of design.

[0047] In this embodiment, preferably, the connection interface 8 is arranged on the side of the first display screen 1 close to the third display screen 3, which is convenient for users to connect the extended screen to computer equipment and is more convenient for users to use.

[0048] In this embodiment, as Figure 11 shown, a first baffle 15 is provided on one side of the first groove 13 close to the display surface 102 of the first display screen 1, the display surface 202 of the second display screen 2 or the display surface 302 of the third display screen 3. The first baffle 15 is arranged along the length of the first groove 13, which can protect the joint end of the data connection line. It is not easy for users to accidentally knock off the data connection line during use, and it also makes the overall appearance of the extended screen more beautiful. And the first baffle 15 is arranged along the length of the first groove 13, which is convenient for the installation of the screen on the display surface. There is no need to set a notch on the screen, and the first baffle is integrally formed with the display screen body, saving processes and making the first baffle more stable.

[0049] In this embodiment, as Figure 13 shown, a second baffle 16 is provided on one side of the second groove 14 close to the display surface 102 of the first display screen 1, the display surface 202 of the second display screen 2 or the display surface 302 of the third display screen 3. The second baffle 16 is arranged along the length of the second groove 14, and the top end of the display screen control key 9 does not exceed the outermost side of the second baffle 16. In this way, the keys can be protected to prevent the keys from being accidentally damaged by being touched or the picture of the extended screen from being adjusted by accidental touching, enhancing the use stability of the extended screen.

[0050] In this embodiment, the connection interface 8 includes a Type-C interface and a Type-A interface.

[0051] In this embodiment, the extended screen further includes a display control key 9. A second groove 14 is provided on the side of the first display screen 1, the second display screen 2 or the third display screen 3. The second groove 14 is provided on the opposite side of the side of the first groove 13. The display control key 9 is arranged in the second groove 14. The provision of the second groove 14 protects the display control button, making the display control button not easily knocked, preventing losses to users, improving the user experience, and the relative arrangement of the second groove 14 and the first groove 13 is convenient for users to use and makes the overall appearance of the extended screen more design-oriented.

[0052] Overall, the three-screen folding design is more convenient for users to use and carry. The structure is simple and easy to assemble. The overall design facilitates the safe and stable use by users, and the overall user experience is improved.

[0053] It should be understood that the application of the present utility model is not limited to the above examples. For those of ordinary skill in the art, improvements or variations can be made according to the above description. All such improvements and variations should fall within the protection scope of the appended claims of the present utility model.

Claims

1. An extended screen, characterized in that, The extended screen includes a first display screen (1), a second display screen (2), and a third display screen (3). The second display screen (2) is connected to the top end (101) of the first display screen (1), and the third display screen (3) is connected to the left side (201) or the right side (2011) of the second display screen (2), so that the first display screen (1) and the third display screen (3) can form a diagonal. When the first display screen (1) and the third display screen (3) form a diagonal, a placement position (100) is formed below the third display screen (3) near the first display screen (1), and the placement position (100) can be used to place the display screen of a computer device.

2. An extended screen according to claim 1, wherein Both the first display screen (1) and the third display screen (3) are rotatably connected to the second display screen (2), and the first display screen (1) and the third display screen (3) are rotated to be stacked on the second display screen (2).

3. An extended screen according to claim 2, characterized in that, The extended screen further includes a first rotating connector (4). One end of the first rotating connector (4) is fixedly connected to the second display screen (2). The first rotating connector (4) is rotatably arranged at the top end (101) of the first display screen (1), and the display surface (102) of the first display screen (1) can be rotated through the rotation of the first rotating connector (4) to be attached to the display surface (202) of the second display screen (2). The first display screen (1) can be rotated relative to the second display screen (2) by at least 180° through the first rotating connector (4).

4. An extended screen according to claim 3, characterized in that The first rotating connector (4) includes a first connecting plate (41) and a first connecting shaft cylinder (42). The first connecting plate (41) is arranged on the side surface (421) of the first connecting shaft cylinder (42). The first connecting shaft cylinder (42) is in damping rotational connection with a first connecting portion (11) on the first display screen (1). The first connecting plate (41) is fixedly connected to the second display screen (2) through a fixing member. When the first display screen (1) is unfolded to the maximum angle relative to the second display screen (2), the side of the second display screen (2) connected to the first display screen (1) is located on the back surface of the first display screen (1).

5. An extended screen according to claim 3, characterized in that, An installation notch (12) is provided on the side of the first display screen (1) close to the second display screen (2). A cover plate (22) is provided on the display surface (202) of the second display screen (2) close to the first display screen (1). When the first display screen (1) is connected to the second display screen (2), the cover plate (22) is arranged at the installation notch (12). A first wire passing hole (121) is provided on one side wall of the installation notch (12). A second wire passing hole (221) is provided at one end of the cover plate (22) close to the first wire passing hole (121), and the inside of the cover plate (22) is communicated with the inside of the second display screen (2).

6. An extended screen according to claim 2, characterized in that, The extended screen further includes a second rotating connector (5). One end of the second rotating connector (5) is fixedly connected to the third display screen (3). The second rotating connector (5) is rotatably arranged on the left side (201) or the right side (2011) of the second display screen (2). And the back surface (301) of the third display screen (3) can be rotated to fit with the back surface (203) of the second display screen (2) through the rotation of the second rotating connector (5). The third display screen (3) can be rotated relative to the second display screen (2) by at least 180° through the second rotating connector (5).

7. An extended screen according to claim 6, characterized in that, The second rotating connector (5) includes a second connecting plate (51) and a second connecting shaft cylinder (52). The second connecting plate (51) is arranged on the side surface (521) of the second connecting shaft cylinder (52). The second connecting shaft cylinder (52) is in damping rotational connection with a second connecting part (21) on the second display screen (2). The second connecting plate (51) is fixedly connected to the third display screen (3) through a fixing member. And when the third display screen (3) is unfolded to the maximum angle relative to the second display screen (2), the side edge of the third display screen (3) connected to the second display screen (2) is located on the back surface (203) of the second display screen (2).

8. An extended screen according to claim 1, characterized in that, The extended screen further includes a bracket (6) and a foot pad (62). The support cross bar (61) of the bracket is provided with a foot pad installation position (611). The foot pad (62) is detachably installed at the foot pad installation position (611). The foot pad installation position (611) is provided with a card hole (6111) and an opening (6112). The opening (6112) is arranged on the outer side surface of the support cross bar (61). The card hole (6111) communicates with the opening (6112). The foot pad (62) includes a housing (621) and a clamping column (622). The housing (621) includes a U-shaped installation groove (6211). The housing (621) can be inserted into the foot pad installation position (611) through the U-shaped installation groove (6211). The clamping column (622) is longitudinally arranged in the U-shaped installation groove (6211). And the clamping column (622) can pass through the opening (6112) and be clamped in the card hole (6111). And when the clamping column (622) is clamped in the card hole (6111), the outer side surface of the foot pad (62) protrudes from the outer side surface of the bracket (6).

9. An extended screen according to claim 1, characterized in that, The extended screen further includes a connection interface (8). A first groove (13) is provided on the side of the first display screen (1), the second display screen (2), or the third display screen (3). The connection interface (8) is disposed in the first groove (13); the connection interface (8) is disposed on the side of the first display screen (1) close to the third display screen (3); a first baffle (15) is provided on one side of the first groove (13) close to the display surface (102) of the first display screen (1), the display surface (202) of the second display screen (2), or the display surface (302) of the third display screen (3), and the first baffle (15) is arranged along the length of the first groove (13).

10. An extended screen according to claim 9, characterized in that, The extended screen further includes a display screen control key (9). A second groove (14) is provided on the side of the first display screen (1), the second display screen (2), or the third display screen (3). The second groove (14) is disposed on the opposite side of the side of the first groove (13). The display screen control key (9) is disposed in the second groove (14); a second baffle (16) is provided on one side of the second groove (14) close to the display surface (102) of the first display screen (1), the display surface (202) of the second display screen (2), or the display surface (302) of the third display screen (3), the second baffle (16) is arranged along the length of the second groove (14), and the top end of the display screen control key (9) does not extend beyond the outer side of the second baffle (16).

Images