Hinge

Abstract

A hinge is adapted to be disposed between two bodies for jointly providing a flexible screen. The hinge includes a base, two rotating modules, and a central support plate. The base extends in the front-rear direction. The two rotating modules are respectively disposed on the left and right sides of the base in the left-right direction and are respectively used for disposing the bodies. The rotating modules can rotate relative to the base between an initial position and a terminal position to interlock the bodies to transform between a deployed state corresponding to the initial position and a folded state corresponding to the terminal position. The central support plate extends in the front-rear direction and is located above the base in the up-down direction. The central support plate is connected to the rotating modules and can be driven by the rotating modules to move downward in the up-down direction to an avoidance position for avoiding the flexible screen, thereby preventing the bending portion of the flexible screen from being improperly stressed and damaged due to insufficient space.

Description

Technical Field

[0001] The present invention relates to a hinge, and more particularly to a hinge suitable for being disposed between two bodies for jointly providing a flexible screen. Background Art

[0002] In recent years, flexible screens have been widely applied to various folding devices. These folding devices can be divided into an inner folding structure and an outer folding structure. When the flexible screen is applied to a folding device belonging to the inner folding structure, the bending portion of the flexible screen is likely to be damaged due to improper stress caused by insufficient space. Summary of the Invention

[0003] An object of the present invention is to provide a hinge that can improve at least one drawback in the prior art.

[0004] In some embodiments, the hinge of the present invention is suitable for being disposed between two bodies for jointly providing a flexible screen. The hinge includes a base, two rotating modules, and a central support plate. The base extends in the front-rear direction. The two rotating modules are respectively disposed on the left and right sides of the base in the left-right direction perpendicular to the front-rear direction and are respectively used for disposing the two bodies. The two rotating modules can rotate relative to the base between an initial position and a terminal position to interlock the two bodies between an unfolded state corresponding to the initial position and enabling the flexible screen to be unfolded, and a folded state corresponding to the terminal position and enabling the flexible screen to be folded inward. The two central support plates extend in the front-rear direction and are located above the base in the up-down direction perpendicular to the front-rear direction and the left-right direction. The central support plate is connected to the two rotating modules and can be driven by the two rotating modules to move in the up-down direction. When the two rotating modules are in the initial position, the central support plate is at a higher position and can support the flexible screen from below. When the two rotating modules rotate to the terminal position, the central support plate moves downward to a lower position and can avoid the flexible screen.

[0005] In some embodiments, each rotating module includes a rotating frame that can rotate relative to the base and is used for disposing a corresponding body, and a side support plate connected between the rotating frame and the base and can be driven by the rotating frame to rotate relative to the base. The side support plate is located on both sides of the central support plate. When the two rotating modules are in the initial position, the side support plates of the two rotating modules can jointly support the flexible screen with the central support plate. When the two rotating modules are in the terminal position, the side support plates of the two rotating modules avoid the flexible screen and jointly define a screen accommodation space with the central support plate.

[0006] In some embodiments, the rotating frame of each rotating module has two rotating segments respectively rotatably disposed at two ends of the base in the front-back direction, and a connecting segment extending in the front-back direction and connecting between the two rotating segments and jointly surrounding the corresponding side support plate with the two rotating segments. The connecting segment is connected to the corresponding side support plate and drives the corresponding side support plate to rotate.

[0007] In some embodiments, the rotating frame of each rotating module further has two rotating shaft members respectively extending in the front-back direction and disposed on the two rotating segments and rotatably disposed at two ends of the base. The rotating shaft members of the two rotating modules can drive the central support plate to move between the support position and the avoidance position.

[0008] In some embodiments, each rotating shaft member has a driving convex portion extending toward the central support plate in the front-back direction. The central support plate has a plurality of receiving grooves respectively corresponding to receive the driving convex portions of the rotating shaft members of the two rotating modules. When the two rotating modules rotate between the initial position and the terminal position, the driving convex portions of the rotating shaft members of the two rotating modules move up and down to drive the central support plate to move between the support position and the avoidance position.

[0009] In some embodiments, the driving convex portions of the rotating shaft members of the two rotating modules are opposite to each other in the left-right direction. The hinge further includes two synchronous connecting members disposed between the base and the central support plate and respectively located at the front and rear end portions of the central support plate. The two synchronous connecting members extend obliquely in the front-back direction and the up-down direction. Each synchronous connecting member has a first connecting portion extending in the left-right direction and disposed on the base, and a second connecting portion extending in the left-right direction and disposed on the central support plate. The base has two first receiving grooves respectively corresponding to receive the first connecting portions of the two synchronous connecting members, and the central support plate has two second receiving grooves respectively corresponding to receive the second connecting portions of the two synchronous connecting members. One of the first receiving groove and the second receiving groove is a sliding groove for allowing the corresponding first connecting portion or the corresponding second connecting portion to slide in the front-back direction.

[0010] In some embodiments, the side support plates of the two rotating modules are pivotally connected to the base, and the axial center positions of the pivots of the side support plates of the two rotating modules and the base are located outside the rotation central axes of the rotating shaft members of the two rotating modules in the left-right direction. When the two rotating modules are in the terminal position, the cross-section of the screen receiving space jointly defined by the side support plates of the two rotating modules and the central support plate facing the front-back direction is in a shape that is narrow at the top and wide at the bottom.

[0011] In some embodiments, each rotating shaft member has a sliding portion correspondingly disposed on a corresponding rotating section. Each rotating section has a sliding groove formed along the front-back direction and configured to receive the sliding portion of the corresponding rotating shaft member in a relatively slidable but non-rotatable manner, and a sliding column formed along the front-back direction. The base further has a plurality of arc-shaped sliding grooves that are respectively configured to slidably receive the sliding columns of the rotating sections of the rotating modules and are arc-shaped. When the two rotating modules are in the initial position, the sliding groove extends in the left-right direction. The sliding groove has an inner end located on the inner side and an outer end located on the outer side. When the two rotating modules are in the initial position, the sliding portion is located at the outer end. When the two rotating modules are in the terminal position, the sliding portion is located at the inner end.

[0012] In some embodiments, the connecting section of each rotating module has a connecting section body extending along the front-back direction and connecting between the two rotating sections, and at least one torsion unit disposed on the connecting section body and connected to the corresponding side support plate. The torsion unit has a housing disposed on the connecting section body, a driven member disposed in the housing and capable of being connected to and interlocked with the corresponding side support plate to rotate relative to the housing about an axis parallel to the front-back direction, a pressing member slidably disposed in the housing along the front-back direction and opposite to the driven member in the front-back direction, and an elastic member disposed between the inner side surface of the housing and the pressing member and configured to push the pressing member toward the driven member to bring the two into contact. The driven member has a first concave-convex structure facing the pressing member, and the pressing member has a second concave-convex structure corresponding to and cooperating with the first concave-convex structure. When the rotating module is at at least one predetermined position between the initial position and the terminal position, the first concave-convex structure and the second concave-convex structure are in concave-convex cooperation with each other.

[0013] The central support plate of the hinge of the present invention is configured to support the flexible screen, and can move downward to an avoidance position to avoid the flexible screen when the two rotating modules rotate to the terminal position, thereby preventing the bending portion of the flexible screen from being damaged due to improper force caused by insufficient space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein:

[0015] Figure 1 FIG. 16 is a perspective view of an embodiment of the hinge of the present invention disposed between two bodies for jointly disposing a flexible screen. In the figure, the two rotating modules of the embodiment are in the initial position and the two bodies are in the unfolded state;

[0016] Figure 2is similar to the described Figure 1 isometric view, where the two rotating modules are in the end position and the two bodies are in the folded state;

[0017] Figure 3 is Figure 1 exploded isometric view;

[0018] Figure 4 is an exploded isometric view of the described embodiment;

[0019] Figure 5 is an incomplete cross-sectional view of the described embodiment, the two bodies and the flexible screen, for illustrating the two rotating modules, where the two rotating modules are in the initial position;

[0020] Figure 6 is an incomplete cross-sectional view of the described embodiment, the two bodies and the flexible screen, for illustrating the two rotating modules, where the two rotating modules are in the end position;

[0021] Figure 7 is an incomplete cross-sectional view of the described embodiment, the two bodies and the flexible screen, for illustrating that when the two rotating modules are in the initial position, one side support plate of each rotating module and a central support plate of the described embodiment jointly support the flexible screen;

[0022] Figure 8 is an incomplete cross-sectional view of the described embodiment, the two bodies and the flexible screen, for illustrating that when the two rotating modules are in the end position, the side support plates of each rotating module and the central support plate avoid the flexible screen;

[0023] Figure 9 is an incomplete cross-sectional view of the described embodiment, the two bodies and the flexible screen, for illustrating the cooperation relationship between the two synchronous connecting members and the central support plate, where the two rotating modules are in the initial position;

[0024] Figure 10 is an incomplete cross-sectional view of the described embodiment, the two bodies and the flexible screen, for illustrating the cooperation relationship between the two synchronous connecting members and the central support plate, where the two rotating modules are in the end position;

[0025] Figure 11 is an incomplete cross-sectional view for illustrating the torsion unit of each rotating module of the described embodiment, where the two rotating modules are in the initial position; and

[0026] Figure 12is an incomplete cross-sectional view for illustrating the torsion units of the respective rotation modules of the embodiment. In the figure, the two rotation modules are in the termination position. Detailed implementation manners

[0027] Refer to Figures 1 to 4 , an embodiment of the hinge 100 of the present invention is applicable to be disposed between two bodies 200 to jointly provide a flexible screen 300 for setting, thereby forming a foldable electronic device. It should be noted that, in this embodiment, the flexible screen 300 is fixedly disposed on the two bodies 200, and the hinge 100 only provides support for the flexible screen 300 rather than being fixedly disposed, but it is not limited thereto. The hinge 100 includes a base 1, two rotation modules 2, a central support plate 3, and two synchronous connectors 4. It should be noted that, in other implementation manners, the two synchronous connectors 4 can be omitted, and this embodiment is not restrictive.

[0028] The base 1 extends along a front-back direction D1. The two rotation modules 2 are respectively disposed on the left and right sides of the base 1 along a left-right direction D2 perpendicular to the front-back direction D1 and are respectively used for setting the two bodies 200. The two rotation modules 2 can rotate relative to the base 1 between an initial position and a termination position to interlock the two bodies 200 between an unfolded state corresponding to the initial position and with the flexible screen 300 unfolded, and a folded state corresponding to the termination position and with the flexible screen 300 folded inward. Each rotation module 2 includes a rotation bracket 21 that can rotate relative to the base 1 and is used for setting the corresponding body 200, and a side support plate 22 connected between the rotation bracket 21 and the base 1 and that can be driven by the rotation bracket 21 to rotate relative to the base 1 (see Figure 8 ).

[0029] Refer to Figures 3 to 6, each rotating frame 21 of the rotating module 2 has two rotating segments 211 respectively rotatably provided at both ends of the base 1 in the front-rear direction D1, and a connecting segment 212 extending in the front-rear direction D1 and connecting between the two rotating segments 211 and jointly surrounding a corresponding side support plate 22 with the two rotating segments 211. The connecting segment 212 is connected to the corresponding side support plate 22 and drives the corresponding side support plate 22 to rotate. In this embodiment, each rotating frame 21 of the rotating module 2 further has two rotating shaft members 213 respectively extending in the front-rear direction D1 and provided on the two rotating segments 211 and rotatably provided at both ends of the base 1. Each rotating shaft member 213 has a sliding portion 213a provided on the corresponding rotating segment 211. Each rotating segment 211 has a sliding groove 211a formed in the front-rear direction D1 and accommodating the sliding portion 213a of the corresponding rotating shaft member 213 in a slidable but non-rotatable manner, and a sliding column 211b formed in the front-rear direction D1. The base 1 further has a plurality of arc-shaped sliding grooves 11 respectively slidably accommodating the sliding columns 211b of the rotating segments 211 of the rotating module 2 and being arc-shaped. When the two rotating modules 2 are in the initial position, the sliding groove 211a extends in the left-right direction D2. The sliding groove 211a has an inner end 211c located on the inner side and an outer end 211d located on the outer side. When the two rotating modules 2 are in the initial position, the sliding portion 213a is located at the outer end 211d. When the two rotating modules 2 are in the terminal position, the sliding portion 213a is located at the inner end 211c. Thus, when the two rotating modules 2 move from the initial position to the terminal position and when the two bodies 200 change from the unfolded state to the folded state, the rotating frames 21 of the two rotating modules 2 can slide outward relative to the rotating shaft members 213 provided on the base 1, so that the two bodies 200 on which the flexible screen 300 is fixedly provided slide outward relative to the base 1 to provide enough space for the inwardly folded flexible screen 300.

[0030] It is worth mentioning that the cooperation between the sliding groove 211a and the sliding portion 213a needs to be combined with the cooperation between the sliding column 211b and the arc-shaped sliding groove 11 to enable the rotating frames 21 of the two rotating modules 2 to slide outward while rotating. Moreover, the extending path of the arc-shaped sliding groove 11 needs to be determined according to the position of the sliding column 211b. That is to say, the extending path of the arc-shaped sliding groove 11 and the position of the sliding column 211b can be adjusted according to requirements and should not be limited by this embodiment.

[0031] Refer to Figure 4 、 Figure 7 and Figure 8, the central support plate 3 extends along the front-rear direction D1 and is located above the base 1 in a vertical direction D3 perpendicular to the front-rear direction D1 and the left-right direction D2. The central support plate 3 is located between the two side support plates 22 in the left-right direction D2, that is, the two side support plates 22 are located on the left and right sides of the central support plate 3. The side support plates 22 of the two bodies 200 and the two rotation modules 2 and the central support plate 3 jointly provide a setting position for the flexible screen 300 at the top. The central support plate 3 is connected to the two rotation modules 2 and can be driven by the two rotation modules 2 to move along the vertical direction D3. When the two rotation modules 2 are in the initial position, the central support plate 3 is at a higher position and can support the flexible screen 300 from below at a support position. When the two rotation modules 2 rotate to the termination position, the central support plate 3 moves downward to a lower position and can avoid the flexible screen 300 at an avoidance position. Thereby, when the two rotation modules 2 are in the termination position and the two bodies 200 are in the folded position, it is avoided that the bending part of the flexible screen 300 is easily damaged due to insufficient space or being pressed by the central support plate 3 and being improperly stressed.

[0032] It should be noted that in this embodiment, the two rotation modules 2 drive the central support plate 3 to move between the support position and the avoidance position through the rotating shaft member 213. However, in other embodiments, the two rotation modules 2 can also drive the central support plate 3 through other components, and this embodiment is not limiting. Each rotating shaft member 213 further has a driving block 213b sleeved on the end. The driving block 213b has a driving convex portion 213c extending toward the central support plate 3 along the front-rear direction D1. The central support plate 3 has two receiving grooves 31 formed at the front and rear ends and extending along the left-right direction D2 and correspondingly receiving the driving convex portions 213c of the rotating shaft members 213 of the two rotation modules 2. It should be noted that in a variant embodiment, the number of the receiving grooves 31 can also be four corresponding to the number of the rotating shaft members 213. In addition, through the non-rotatable matching relationship between the sliding portion 213a and the sliding groove 211a, the rotating shaft member 213 rotates along with the rotating section 211. When the two rotation modules 2 rotate between the initial position and the termination position, the driving convex portions 213c of the rotating shaft members 213 of the two rotation modules 2 move up and down to drive the central support plate 3 to move between the support position and the avoidance position. In addition, in a variant embodiment, the driving block 213b can also be integrally formed on the rotating shaft member 213.

[0033] In this embodiment, when the two rotating modules 2 are in the initial position, the side support plates 22 of the two rotating modules 2 can cooperate with the central support plate 3 to support the flexible screen 300; when the two rotating modules 2 are in the terminal position, the side support plates 22 of the two rotating modules 2 avoid the flexible screen 300 and cooperate with the central support plate 3 to define a screen accommodation space S extending along the front-rear direction D1. Specifically, the side support plates 22 of the two rotating modules 2 are pivotally connected to the base 1, and the axial center position A1 of the pivot connection between the side support plates 22 of the two rotating modules 2 and the base 1 is located outside the rotation central axis A2 of the rotating shaft members 213 of the two rotating modules 2 in the left-right direction D2. Thereby, when the two rotating modules 2 are in the terminal position, the cross-section of the screen accommodation space S defined by the side support plates 22 of the two rotating modules 2 and the central support plate 3 facing the front-rear direction D1 is an isosceles trapezoid that is narrow at the top and wide at the bottom. The flexible portion of the flexible screen 300 can be accommodated through the screen accommodation space S, further avoiding damage to the flexible portion of the flexible screen 300 caused by improper force due to insufficient space. It should be noted that in other embodiments, the rotating frame 21 of the rotating module 2 and the side support plate 22 can also be combined into a single rotating member (not shown in the figure). At this time, the central support plate 3 will be driven by the rotating member to move between the support position and the avoidance position. In other words, the side support plates 22 of the two rotating modules 2 can be omitted, and this is not limited to this embodiment.

[0034] Refer to Figure 4 、 Figure 9 And Figure 10, the two synchronous connectors 4 are located between the base 1 and the central support plate 3 and are respectively located at the front and rear ends of the central support plate 3. The two synchronous connectors 4 extend obliquely along the front-rear direction D1 and the up-down direction D3. The two synchronous connectors 4 are substantially sheet-shaped. Each synchronous connector 4 has a rod-shaped structure extending along the left-right direction D2 and a first connecting portion 41 provided on the base 1, and a rod-shaped structure extending along the left-right direction D2 and a second connecting portion 42 provided on the central support plate 3. The base 1 has two first accommodating grooves 12 respectively corresponding to and accommodating the first connecting portions 41 of the two synchronous connectors 4. The central support plate 3 has two second accommodating grooves 32 respectively corresponding to and accommodating the second connecting portions 42 of the two synchronous connectors 4. In this embodiment, the two second accommodating grooves 32 communicate with the two accommodating grooves 31, but this is not a limitation. One of the first accommodating groove 12 and the second accommodating groove 32 is a sliding groove for allowing the corresponding first connecting portion 41 or the corresponding second connecting portion 42 to slide along the front-rear direction D1. For example, in this embodiment, the first accommodating groove 12 is the sliding groove, but this is not a limitation. Through the two synchronous connectors 4, the heights of the left and right sides of the central support plate 3 relative to the base 1 can be kept consistent, so that the central support plate 3 can remain horizontal relative to the central support plate 3 during the up and down movement relative to the base 1. And because the rotating shafts 213 of the two rotating modules 2 and their driving protrusions 213c are opposite to each other along the left-right direction D2, whereby the driving protrusions 213c of the rotating shafts 213 of the two rotating modules 2 can be restricted by the central support plate 3 at the same height, so that the rotation of the two rotating modules 2 relative to the base 1 can achieve the effect of synchronous actuation.

[0035] Refer to Figure 4 , Figure 5 , Figure 11 and Figure 12, in addition, in this embodiment, the connecting section 212 of the rotating frame 21 of each rotating module 2 has a connecting section body 212a extending in the front-rear direction D1 and connecting between the two rotating sections 211, and two torsion units 212b spaced apart in the front-rear direction D1 on the connecting section body 212a and connected to the corresponding side support plates 22. It should be noted that the torsion unit 212b can be at least one, and this embodiment is not restrictive. Each torsion unit 212b has a housing 212c provided on the connecting section body 212a, a wheel shaft member 212d fixedly penetrating through the housing 212c in the front-rear direction D1, a driven member 212e provided in the housing 212c and rotatably sleeved on the wheel shaft member 212d and capable of being connected to and interlocked with the corresponding side support plate 22 to rotate about the axis of the wheel shaft member 212d parallel to the front-rear direction D1 relative to the housing 212c, a pressing member 212f slidably provided in the housing 212c along the front-rear direction D1 and slidably sleeved on the wheel shaft member 212d and opposite to the driven member 212e in the front-rear direction D1, and an elastic member 212g provided between the inner side surface of the housing 212c and the pressing member 212f and sleeved on the wheel shaft member 212d for pushing the pressing member 212f toward the driven member 212e along the front-rear direction D1 to make the two contact. The driven member 212e protrudes out of the housing 212c to be connected to the corresponding side support plate 22 and interlocked with the corresponding side support plate 22, and the shape of the pressing member 212f matches the shape of the housing 212c, so that the pressing member 212f can only slide relative to the housing 212c. The driven member 212e has a first concave-convex structure 212h facing the pressing member 212f, and the pressing member 212f has a second concave-convex structure 212i facing the driven member 212e and corresponding to and cooperating with the first concave-convex structure 212h. When the rotating module 2 is at at least one predetermined position between the initial position and the termination position, the first concave-convex structure 212h and the second concave-convex structure 212i are concavely and convexly matched with each other. Thus, the torsion unit 212b will provide a positioning force to the rotating module 2 when the rotating module 2 is at the at least one predetermined position, so that the rotating module 2 can easily stop at the at least one predetermined position. It should be noted that when the rotating module 2 is at other positions other than the at least one predetermined position, since the driven member 212e rotates, the first concave-convex structure 212h and the second concave-convex structure 212i are not concavely and convexly matched with each other. At this time, the driven member 212e pushes the pressing member 212f and compresses the elastic member 212g to store elastic potential energy, and further makes it difficult for the rotating module 2 to stop at the other positions relative to the base 1.

[0036] In this embodiment, there are two predetermined positions, namely the initial position and the termination position respectively. However, in other embodiments, the predetermined position may also be one or more than three, and the predetermined position may also be other positions between the initial position and the termination position, which is not limited to this embodiment. In addition, it should be noted that although in this embodiment, the connecting section body 212a of the rotating frame 21 of the rotating module 2 is connected to the side support plate 22 through the torsion unit 212b and drives the side support plate 22, in other embodiments, the connecting section body 212a of the rotating frame 21 of the rotating module 2 may also be directly connected to the side support plate 22 and directly drive the side support plate 22.

[0037] In summary, the central support plate 3 of the hinge 100 of the present invention is used to support the flexible screen 300, and when the two rotating modules 2 rotate to the termination position, it can move downward to avoid the flexible screen 300 at the avoidance position, thereby preventing the bending portion of the flexible screen 300 from being damaged due to improper stress caused by insufficient space.

[0038] The above are only the embodiments of the present invention, and the scope of implementation of the present invention cannot be limited thereby. That is, all simple equivalent changes and modifications made according to the claims and the content of the specification of the present invention still fall within the scope of the present invention.

Claims

1. A hinge, suitable for being disposed between two bodies for jointly providing a flexible screen, characterized in that, The hinge includes: a base formed to extend in the front-rear direction; two rotating modules respectively disposed on the left and right sides of the base in the left-right direction perpendicular to the front-rear direction and respectively for the two bodies to be disposed thereon. The two rotating modules can rotate relative to the base between an initial position and a terminal position to interlock the two bodies to transform between an unfolded state corresponding to the initial position and with the flexible screen unfolded, and a folded state corresponding to the terminal position and with the flexible screen folded inward; and a central support plate formed to extend in the front-rear direction and located above the base in the up-down direction perpendicular to the front-rear direction and the left-right direction. The central support plate is connected to the two rotating modules and can be driven by the two rotating modules to move in the up-down direction. When the two rotating modules are in the initial position, the central support plate is at a higher position and can support the flexible screen from below at a support position. When the two rotating modules rotate to the terminal position, the central support plate moves downward to a lower position and can avoid the flexible screen at an avoidance position, wherein each rotating module includes a rotating frame that can rotate relative to the base and is for a corresponding body to be disposed thereon. The rotating frame of each rotating module further has two rotating segments respectively rotatably disposed at two ends of the base in the front-rear direction, and two rotating shaft members respectively extending in the front-rear direction and disposed on the two rotating segments and rotatably disposed at two ends of the base. The rotating shaft members of the two rotating modules can drive the central support plate to move between the support position and the avoidance position, each rotating shaft member has a driving convex portion extending in the front-rear direction toward the central support plate. The central support plate has a plurality of receiving grooves correspondingly accommodating the driving convex portions of the rotating shaft members of the two rotating modules. When the two rotating modules rotate between the initial position and the terminal position, the driving convex portions of the rotating shaft members of the two rotating modules move up and down to drive the central support plate to move between the support position and the avoidance position.

2. The hinge according to claim 1, characterized in that: Each rotating module further includes a side support plate connected between the rotating frame and the base and capable of being driven by the rotating frame to rotate relative to the base. The side support plate is located on both sides of the central support plate. When the two rotating modules are in the initial position, the side support plates of the two rotating modules can jointly support the flexible screen with the central support plate. When the two rotating modules are in the terminal position, the side support plates of the two rotating modules avoid the flexible screen and jointly define a screen accommodating space with the central support plate.

3. The hinge according to claim 2, characterized in that: The rotating frame of each rotating module further has a connecting segment extending in the front-rear direction and connecting between the two rotating segments and surrounding the corresponding side support plate together with the two rotating segments. The connecting segment is connected to the corresponding side support plate and drives the corresponding side support plate to rotate.

4. The hinge according to claim 3, characterized in that: The driving convex portions of the rotating shafts of the two rotating modules face each other in the left-right direction. The hinge further includes two synchronous connecting members disposed between the base and the central support plate and located at the front and rear end portions of the central support plate respectively. The two synchronous connecting members extend obliquely in the front-rear direction and the up-down direction. Each synchronous connecting member has a first connecting portion extending in the left-right direction and disposed on the base, and a second connecting portion extending in the left-right direction and disposed on the central support plate. The base has two first accommodating grooves respectively corresponding to and accommodating the first connecting portions of the two synchronous connecting members, and the central support plate has two second accommodating grooves respectively corresponding to and accommodating the second connecting portions of the two synchronous connecting members. One of the first accommodating groove and the second accommodating groove is a sliding groove for allowing the corresponding first connecting portion or the corresponding second connecting portion to slide in the front-rear direction.

5. The hinge according to claim 3, characterized in that: The side support plates of the two rotating modules are pivotally connected to the base, and the axial center positions of the pivots of the side support plates of the two rotating modules and the base are located outside the rotation central axes of the rotating shafts of the two rotating modules in the left-right direction. When the two rotating modules are in the terminal position, the cross-section of the screen accommodating space jointly defined by the side support plates of the two rotating modules and the central support plate in the front-rear direction is in the shape of being narrower at the top and wider at the bottom.

6. The hinge according to claim 3, characterized in that: Each rotating shaft has a sliding portion correspondingly provided on the corresponding rotating section. Each rotating section has a sliding groove formed in the front-rear direction and accommodating the sliding portion of the corresponding rotating shaft in a relatively slidable but non-rotatable manner, and a sliding column formed in the front-rear direction. The base further has a plurality of arc-shaped sliding grooves respectively and slidably accommodating the sliding columns of the rotating sections of the rotating modules and being arc-shaped. When the two rotating modules are in the initial position, the sliding groove extends in the left-right direction, and the sliding groove has an inner end located inside and an outer end located outside. When the two rotating modules are in the initial position, the sliding portion is located at the outer end, and when the two rotating modules are in the terminal position, the sliding portion is located at the inner end.

7. The hinge according to claim 3, characterized in that: Each connecting section of the rotation module has a connecting section body extending in the front-rear direction and connected between the two rotation sections, and at least one torsion unit provided on the connecting section body and connected to the corresponding side support plate. The torsion unit has a housing provided on the connecting section body, a driven member provided in the housing and capable of being connected to the corresponding side support plate and interlocked to rotate relative to the housing about an axis parallel to the front-rear direction, a pressing member slidably provided in the housing along the front-rear direction and opposite to the driven member in the front-rear direction, and an elastic member provided between the inner side surface of the housing and the pressing member for pushing the pressing member toward the driven member to bring the two into contact. The driven member has a first concave-convex structure facing the pressing member, and the pressing member has a second concave-convex structure corresponding to and cooperating with the first concave-convex structure. When the rotation module is at at least one predetermined position between the initial position and the termination position, the first concave-convex structure and the second concave-convex structure are in concave-convex cooperation with each other.

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