WO2018070759A1

WO2018070759A1 - Hinge structure, for foldable display device, having semi-automatic operating portion

Info

Publication number: WO2018070759A1
Application number: PCT/KR2017/011132
Authority: WO
Inventors: 박현민
Original assignee: 박현민
Priority date: 2016-10-11
Filing date: 2017-10-11
Publication date: 2018-04-19

Abstract

The present invention relates to a hinge structure, for a foldable display device, having a semi-automatic operating portion. More particularly, the present invention relates to a hinge structure, for a foldable display device, having a semi-automatic operating portion, the hinge structure characterized by having a semi-automatic operating portion in which the resiliency of each body portion being folded towards or unfolded from each other is applied when the two body portions are folded or unfolded.

Description

Hinge structure of foldable display device with semi-automatic drive unit

The present invention relates to a hinge structure of a foldable display device in which a semi-automatic drive unit is installed. More specifically, the present invention relates to a display display device having a structure consisting of two body parts and having a structure connected to a joint part consisting of a plurality of joints. In the hinge structure of the foldable display device, when the two body parts are folded or unfolded at a predetermined angle, for example, when the two body parts are folded at an angle of less than 90 degrees based on 90 degrees, the two body parts are folded. A semi-automatic drive unit having a semi-automatic drive unit installed therein is characterized in that a semi-automatic drive unit having an elastic force acting to expand the body parts to each other and the two body parts are folded at 90 degrees or more is installed so that the two body parts are folded to each other. It is about the hinge structure.

In general, a display module in a mobile terminal displays information processed in a mobile terminal. For example, when the mobile terminal is in a call mode, a user interface (UI) or a graphic user interface (GUI) related to a call is displayed.

The display module may be composed of a liquid crystal display, an organic light-emitting diode, a flexible display, and the like.

Among them, the research of the flexible display has been in full swing because of the advantage that the shape can be freely modified. Therefore, when a flexible display is used in a mobile terminal, there is a need to describe its usage form and its protection method.

Patent documents similar to the hinge structure for a mobile communication device in which the flexible display panel according to the present invention are provided are Publication No. 10-2015-0096827, (Name hinge device of the invention and a foldable display device having the same).

The present invention is an improvement of the conventional smartphone, having a display area of more than twice as large as the display screen of the conventional smartphone, the center of the smartphone so that the user is configured to be folded in the middle of the smartphone for carrying In the hinge structure of the foldable display device in which the articulated hinge part of a plurality of connected joints is installed in the part and the articulated hinge part can be stably supported when the screen of the smartphone is folded or unfolded, the two body parts are folded or unfolded. If the two body parts are folded at an angle of less than 90 degrees with respect to a certain angle, for example, the angle folded to each other at 90 degrees, the elastic force that the two body parts expand to each other is applied, and the two body parts are at least 90 degrees. When folded, the semi-automatic drive unit with elastic force to fold the two body parts together To provide a hinge structure of the folder block display device is a semi-automatic driving unit is installed, it characterized in that an object that is installed.

In order to achieve the above object, in the hinge structure of the foldable display device provided with the semi-automatic drive unit according to the present invention, a chain fixing portion 210 is installed at one body portion, and the chain fixing portion 210 is disposed at the chain fixing portion 210. 230 is fixedly connected, the other body portion is installed so that the drive body 200 to move while sliding, the other end of the chain portion 230 is configured to be connected to the drive body 200,

The other body portion is provided with a pair of elastic modules 220 to face each other, the pair of elastic modules 220 is configured so that the elastic force acts in a direction facing each other, the front portion of the drive body 200 A conversion unit 202 is installed, the conversion unit 202 is disposed between the pair of elastic modules 220, the pair of elastic modules 220 is configured to apply an elastic force to the conversion unit 202 Become,

Each of the elastic modules 220 is configured to have a critical point 222, and the driving body 200 is pushed outward when the converter 202 is located outside the respective critical point 222. When the conversion unit 202 passes the respective critical point 222 is characterized in that the drive body 200 is configured to receive a force pulled inward, the chain portion 230 Each chain unit 232 of the stopper portion is configured, it characterized in that the width of rotation when the chain portion 230 is bent or unfolded is limited.

According to the hinge structure of the foldable display device provided with the semi-automatic drive unit according to the present invention, the multi-joint hinge portion of the plurality of connected joints is installed in the center portion of the smartphone so that the center portion of the smartphone is folded, In the hinge structure of the foldable display device in which the articulated hinge portion can be stably supported when the screen is folded or unfolded, a certain angle, for example, an angle folded at 90 degrees relative to each other while the two body portions are folded or unfolded When the two body parts are folded at an angle of less than 90 degrees, the elastic force to expand the two body parts to each other acts, and when the two body parts are folded over 90 degrees, the elastic force acts to fold the two body parts to each other semi-automatically smart There is a remarkable effect that the body of the phone is folded or unfolded.

1 is an exploded perspective view of a hinge structure of a foldable display device according to the present invention.

FIG. 2A is an enlarged perspective view of portion A of FIG. 1. Figure 2b is a perspective view of the assembled state in which the male and female joints are excluded in Figure 2a.

3 is a plan view from above of a hinge structure of a foldable display device according to the present invention;

4 is a bottom view of the hinge structure of the foldable display device according to the present invention.

5 is a side view of the hinge structure in a side view when the foldable display device according to the present invention is deployed;

6 is a side view as viewed from the side folded in the hinge structure of the foldable display device according to the present invention.

7 is a side view of the joint support link portion inside the hinge structure in a side view when the foldable display device according to the present invention is deployed;

8 is a side view showing a folded state of a joint support link portion inside a hinge structure of the foldable display device according to the present invention.

FIG. 9 is a side view of the central link portion in the hinge structure in a foldable state according to the present invention.

FIG. 10 is a side view of a folded state of a central link portion in a hinge structure of the foldable display device according to the present invention.

FIG. 11 is a side cross-sectional view of a joint link portion connecting each joint in a hinge structure in a state where the foldable display device according to the present invention is deployed;

12 is a side cross-sectional view of the joint link portion connecting each joint in a folded state of the hinge structure of the foldable display device according to the present invention and a perspective view of the joint link of each joint.

FIG. 13 is a perspective view of a state in which each joint is manufactured by insert injection in the hinge structure of the foldable display device according to the present invention. FIG.

14 is a perspective view of a state in which each joint is manufactured by insert injection in the hinge structure of the foldable display device according to the present invention.

15 is a cutaway side cross-sectional view of a portion produced by insert injection in the joint portion of the hinge structure of the foldable display device according to the present invention.

16 is a perspective view of an embodiment in which the center connection link is modified in the foldable display device according to the present invention.

17 is an enlarged perspective view of a portion B of FIG. 16.

18 is a perspective view of the assembled state in which the male and female joints are removed from FIG. 16.

19 is a bottom view of a hinge structure of a foldable display device according to a modified embodiment of the present invention, viewed from below.

FIG. 20 is a diagram illustrating a center connection link inside a hinge structure of a foldable display device according to a modified embodiment of the present invention.

FIG. 21 is a perspective view of the hinge structure of the foldable display device having a semi-automatic driving unit according to the present invention unfolded. FIG.

22 is a perspective view of a hinge structure of a foldable display device having a semi-automatic drive unit according to the present invention folded about 45 degrees.

FIG. 23 is a perspective view of a hinge structure of a foldable display device having a semi-automatic drive unit according to the present invention folded about 90 degrees; FIG.

24 is a perspective view of a hinge structure of a foldable display device having a semi-automatic drive unit according to the present invention folded about 130 degrees.

25 is a perspective view of a hinge structure of a foldable display device having a semi-automatic drive unit according to the present invention folded about 160 degrees.

26 is a side view of the hinge structure of the foldable display device having a semi-automatic driving unit installed therein according to the present invention unfolded.

27 is a side view of the hinge structure of the foldable display device having the semi-automatic drive unit according to the present invention folded about 45 degrees.

FIG. 28 is a side view of a hinge structure of a foldable display device having a semi-automatic driving unit according to the present invention folded about 130 degrees; FIG.

29 is a side view of a fully folded hinge structure of a foldable display device having a semi-automatic drive unit according to the present invention.

30 is a perspective view of a chain connected to a driving body in the hinge structure of a foldable display device provided with a semi-automatic driving unit according to the present invention.

31 is a perspective view of a unit of a chain connected with a drive body according to the present invention.

32 is a side view of the chain connected to the driving body according to the present invention from the side.

33 is a side view of the chain connected to the driving body according to the present invention from a side view.

34 is a perspective view of the hinge structure of the foldable display device in which the semi-automatic drive unit is installed according to another embodiment of the present invention.

35 is a perspective view of a hinge structure of a foldable display device having a semi-automatic drive unit according to another embodiment of the present invention folded about 55 degrees.

FIG. 36 is a perspective view of a hinge structure of a foldable display device having a semi-automatic driving unit according to another embodiment of the present invention folded about 130 degrees. FIG.

FIG. 37 is a perspective view of a hinge structure of a foldable display device having a semi-automatic drive unit according to another embodiment of the present invention folded about 160 degrees. FIG.

FIG. 38 is a side view of the hinge structure of the foldable display device having a semi-automatic drive unit installed therein according to another embodiment of the present invention. FIG.

FIG. 39 is a side view of a hinge structure of a foldable display device having a semi-automatic drive unit according to another embodiment of the present invention folded about 130 degrees. FIG.

40 is a side view of a fully folded hinge structure of a foldable display device having a semi-automatic drive unit according to another exemplary embodiment of the present invention.

FIG. 41 is a perspective view of a joint part 300 deformed in a foldable display apparatus in which a semi-automatic driving unit is installed according to another exemplary embodiment.

42 is a perspective view of a chain part and a chain fixing part coupled to a driving body in a foldable display device having a semi-automatic driving part according to another exemplary embodiment of the present invention.

FIG. 43 is a perspective view illustrating a chain portion fitted into a guide groove 302 formed at a joint portion in a foldable display device having a semi-automatic driving unit according to another exemplary embodiment of the present invention.

1 is an exploded perspective view of a hinge structure of a foldable display device according to the present invention. FIG. 2A is an enlarged perspective view of portion A of FIG. 1. Figure 2b is a perspective view of the assembled state in which the male and female joints are excluded in Figure 2a.

1, 2A and 2B, in the hinge structure of the foldable display device according to the present invention, the center joint 30 is positioned at the center, and the arm joints connected to each other left and right starting from the center joint 30 ( 60) and the joint consisting of the joint 50 is composed.

The left and right sides of the center joint 30 of the present invention are configured to be connected to each other in such a manner that the same number of

joints

40 and 50 are pinned into the holes. The left and right arm joints 60 are connected to the

body parts

10 and 12 on the left and right sides in such a manner that pins and the like are inserted into the holes.

In the central joint 30 of the present invention, the joint support link 44 and the center connection link 42 are configured to be connected to the center connection part 32 and the support connection part 34.

One end of the center link link 42 of the present invention is rotatably connected to the center connecting portion 32 of the center joint 30, the other end is rotatably connected to the connecting portion 22 of the sliding plate 20.

One end of the joint support link 44 of the present invention is rotatably connected to the protruding connecting portion 34, and is fitted along the sliding grooves 52 and 62 below the respective joint 50 and the arm joint 60, respectively. It slides on the support part 18 of the sliding plate 12.

3 is a plan view from above of a hinge structure of a foldable display device according to the present invention; 4 is a bottom view of the hinge structure of the foldable display device according to the present invention.

3 and 4, in the hinge structure of the foldable display device according to the present invention, a plurality of

joints

30, 50, and 60 are connected to each other at a portion where a pair of opposing

body parts

10 and 12 contact each other. An articulated portion is installed.

The flexible display panel displaying a video, an image, and the like is closely attached to the joint part configured to connect the

body parts

10 and 12 and the plurality of

joints

30, 50 and 60 of FIG. 3 to each other.

5 is a side view of the hinge structure in a side view when the foldable display device according to the present invention is deployed; 6 is a side view as viewed from the side folded in the hinge structure of the foldable display device according to the present invention.

5 and 6, when the foldable display device according to the present invention is viewed from the side, the arm joint 60 and the male joint 50 are centered around the central joint 30, and the number of pins is equal to each other. These holes are connected to each other by fitting.

7 is a side view of the joint support link portion inside the hinge structure in a side view when the foldable display device according to the present invention is deployed; 8 is a side view showing a folded state of a joint support link portion inside a hinge structure of the foldable display device according to the present invention.

7 and 8, the joint support link 44 installed in the hinge structure of the foldable display device according to the present invention when the hinge structure of the foldable display device according to the present invention is folded or unfolded. The sliding grooves 52 and 62 of the male joint 50 and the female joint 60 are moved.

Thus, when the

body parts

10 and 12 are folded or unfolded, the respective joint 50 and the arm joint 60 are supported by the joint support 44. That is, when the

body parts

10 and 12 are folded, the joint part is easy to maintain a circular shape, and when it is unfolded, the upper part of the joint part is unfolded while maintaining a flat shape as a whole.

FIG. 9 is a side view of the central link portion in the hinge structure in a foldable state according to the present invention. FIG. 10 is a side view of a folded state of a central link portion in a hinge structure of the foldable display device according to the present invention.

9 and 10, the center connection link 42 installed in the hinge structure of the foldable display device according to the present invention is connected to the center joint 30 so as to rotate, and each center joint 30 is connected to the center joint 30. It is connected so that it may rotate with the connection part 22 of the left body part 10 or the right body part 12. FIG.

FIG. 11 is a side cross-sectional view of a joint link portion connecting each joint in a hinge structure in a state where the foldable display device according to the present invention is deployed; 12 is a side cross-sectional view of the joint link portion connecting each joint in a folded state of the hinge structure of the foldable display device according to the present invention and a perspective view of the joint link of each joint.

Referring to Figures 11 and 12, the joint 50 and the arm joint 60, which are connected to each other, the projection 53 and the projection guide groove 63 which can be moved by the projection is configured.

Since the protrusions 53 of each of the male joints 50 according to the present invention are configured to be fitted into the protrusion guide grooves 53 of the respective arm joints 60, the pair of

body portions

10 and 12, as shown in FIG. When is unfolded, the

body parts

10 and 12 and the joint part can be completely leveled, thereby preventing damage to the flexible display panel provided on the

body parts

10 and 12 and the joint part. That is, the

body portions

10 and 12 of the present invention can be prevented from being bent out of the horizontal state.

FIG. 13 is a perspective view of a state in which each joint is manufactured by insert injection in the hinge structure of the foldable display device according to the present invention. FIG. 14 is a perspective view of a state in which each joint is manufactured by insert injection in the hinge structure of the foldable display device according to the present invention.

Referring to FIGS. 13 and 14, in manufacturing the joint part in the hinge structure of the foldable display device, the center part is manufactured by the insert injection method except for the parts connected to each other by pins inserted at the left and right sides of the joint part. can do.

Joint connection portion 70 of the present invention is made of a metal material and the joint body portion 72 of the center portion can be made of a plastic material by the insert injection method. This can reduce the overall weight of the hinge structure of the foldable display device, it is possible to prevent the water penetrates between the joint and the joint constituting the joint portion.

In addition, the overall weight of the hinge structure of the foldable display device according to the present invention is reduced to reduce the possibility of failure even if the user accidentally drops the foldable display device.

Referring to FIG. 15, the joint body portion 72 of the joint portion of the present invention is made of plastic by insert injection, and the joints between the joints of the joint body portion 72 are formed on the connection film 75 made of plastic. The structure is connected to each other by.

16 is a perspective view of an embodiment in which the center connection link is modified in the foldable display device according to the present invention. 17 is an enlarged perspective view of a portion B of FIG. 16. 18 is a perspective view of the assembled state in which the male and female joints are removed from FIG. 16.

16 to 18, in the foldable display device according to the modified embodiment of the present invention, the center connection part 132 of the center joint 130 may be modified to protrude. The deformed center connection link 142 is rotatably connected in such a way that a pin or the like is fitted to the protruding center connection part 132.

Referring to FIG. 19, the center connecting link 142 is almost invisible when the hinge structure of the foldable display device according to the modified embodiment of the present invention is viewed from below.

Referring to FIG. 20, when the central link link 142 of the present invention is connected to the central joint 130, the central link link 142 is rotatably connected to the central connection portion 132 protruding from the modified central joint 130. have.

(a) The figure shows a shape in which the center connection link 142 is disposed inside the hinge structure in a state where the pair of

body portions

10 and 12 are unfolded, and (b) the pair of

body portions

10 and 12 are shown in the figure. The center connecting link 142 inside the hinge structure is arranged in a state in which) are folded to each other. (C) is a side cross-sectional view of the central joint link 142 is installed in the modified central joint 132.

Referring to FIG. 21, in the hinge structure of the foldable display device according to the present invention, an angle at which two body parts are folded or unfolded, for example, an angle folded at each other is greater than 90 degrees based on 90 degrees. When the two body parts are folded at a small angle, an elastic force is applied to each other, and when the two body parts are folded at 90 degrees or more, the semi-automatic driving part is installed so that the two body parts are folded.

A chain fixing part 210 is installed at one body part according to the present invention, and the chain fixing part 210 is fixedly connected to the chain fixing part 210 such as a watch band, and a driving body 200 is connected to the other body part. ) Is installed to move while sliding, the other end of the chain portion 230 is configured to be connected to the drive body (200).

On the other body portion of the present invention, a pair of elastic modules 220 are installed to face each other, and the pair of elastic modules 220 are configured such that elastic force acts in a direction facing each other.

In the front of the drive body 200 according to the present invention, a conversion unit 202 is installed, the conversion unit 202 is disposed between the pair of elastic modules 220, the pair of elastic modules 220 It is configured to apply an elastic force to the converter 202.

The conversion unit 202 according to the present invention is configured in a circular shape, each of the elastic module 220 is configured to have a protruding critical point 222.

When the circular conversion unit 202 according to the present invention is located outside the respective critical points 222, the driving body 200 of the present invention is subjected to a force pushing outward, and the circular conversion unit according to the present invention. When 202 passes each of the critical points 222, the drive body 200 of the present invention is configured to receive a force pulled inward.

Referring to FIG. 22, the converter 202 of the driving body 200 according to the present invention does not pass through the critical point 222 of the elastic module 220. In this case, the pair of body parts are pushed to each other to apply the force to unfold.

Referring to FIG. 23, when the user folds the pair of body parts to 45 degrees, the converter 202 of the driving body 200 is positioned at the critical point 222 of the elastic module 220. In this case, the pushing or pulling force acts on the pair of body parts in the same manner so that the pair of body parts stop while maintaining an angle of 45 degrees.

However, in the present invention, the angle that the force pushing or pulling each other to the pair of the body is offset only 45 degrees, the manufacturer changes the shape or position of the protruding critical point 222 of the elastic module 220. Alternatively, by changing the shape of the conversion sphere 202, the pushing force or pulling force of the pair of body parts acts the same, so that the critical angle at which the pair of body parts can be momentarily stopped can be modified.

Referring to FIG. 24, when the converter 202 of the driver 200 of the present invention passes the threshold 222, the pair of body parts are driven in a direction in which they are folded.

Referring to FIG. 25, a state in which a pair of body parts are almost folded is shown. In this case, the transform unit 202 is pushed completely beyond the threshold 222 and is opposite the threshold 222.

26 is a side view of the hinge structure of the foldable display device having a semi-automatic driving unit installed therein according to the present invention unfolded. 27 is a side view of the hinge structure of the foldable display device having the semi-automatic drive unit according to the present invention folded about 45 degrees. FIG. 28 is a side view of a hinge structure of a foldable display device having a semi-automatic driving unit according to the present invention folded about 130 degrees; FIG. 29 is a side view of a fully folded hinge structure of a foldable display device having a semi-automatic drive unit according to the present invention.

26 to 29, in the foldable display device provided with the semi-automatic driving unit according to the present invention, the chain portion 230 fixed to the chain fixing portion 210 is unchanged in position as the pair of body portions are folded together. , The chain part 230 connected to the opposite driving body 200 moves while sliding with the driving body 200 on the other body part.

30 is a perspective view of a chain connected to a driving body in the hinge structure of a foldable display device provided with a semi-automatic driving unit according to the present invention. 31 is a perspective view of a unit of a chain connected with a drive body according to the present invention.

30 to 31, in the chain 230 according to the present invention, a plurality of chain units 230 are connected to each other by pins or the like, such as a watch band, but each chain unit 230 rotates to each other. A stopper portion is provided to limit the radius.

32 is a side view of the chain connected to the driving body according to the present invention from the side. 33 is a side view of the chain connected to the driving body according to the present invention from a side view.

32 to 33, each chain unit 232 of the chain portion 230 according to the present invention is configured with a stopper portion, so that the width that rotates when the chain portion 230 is bent or unfolded is limited Becomes

As shown in FIG. 32, when the chain portion 230 according to the present invention is unfolded in a straight line, each chain unit 232 is configured to no longer bend to the opposite side, that is, to prevent rotation anymore.

Referring to FIG. 34, in a hinge structure of a foldable display device according to another embodiment of the present invention, two bodies are folded or unfolded at a predetermined angle, for example, two bodies folded based on 90 degrees. When the additional parts are folded at an angle of less than 90 degrees, the elastic force to expand the two body parts is applied to each other, and when the two body parts are folded at 90 degrees or more, the semi-automatic driving part is installed so that the two body parts are folded to each other. .

According to another embodiment of the present invention, a chain fixing part 210 is installed at one body part, and the chain fixing part 210 is fixedly connected to the chain fixing part 210, and the other body part is fixed to the chain fixing part 210. The drive body 200 is installed to be movable while sliding, the other end of the chain portion 230 is configured to be connected to the drive body 200.

Chain portion 230 of the present invention is configured to move in the guide groove 302 configured to be open to both ends of the joint portion 300 connecting the two body parts to each other.

An elastic module 220 is installed at the other body part of the present invention, and the elastic module 220 is configured such that an elastic force acts toward the driving body 200.

The side of the drive body 200 according to another embodiment of the present invention is provided with a protruding conversion unit 202, the conversion unit 202 is configured to protrude in the direction of the elastic module 220, the elastic module 220 is configured to apply an elastic force to the conversion unit 202.

The conversion unit 202 according to another embodiment of the present invention is projected, the protruding portion is configured in a semi-circular shape, each of the elastic module 220 is configured to have a protruding threshold 222.

Before the circular conversion unit 202 according to another embodiment of the present invention passes each of the critical sections 222, the driving body 200 of the present invention is forced to unfold the two body parts, When the circular conversion unit 202 according to another embodiment passes through each of the thresholds 222, the driving body 200 of the present invention is configured to receive a force in the direction in which the two body parts are folded.

Referring to FIG. 35, the conversion unit 202 of the driving body 200 according to another embodiment of the present invention does not pass through the critical portion 222 of the elastic module 220. In this case, the pair of body parts are pushed to each other to apply the force to unfold.

Referring to FIG. 36, when the converter 202 of the driver 200 of the present invention passes through the threshold 222, the pair of body parts are driven in a direction in which they are folded.

Referring to FIG. 37, a state in which a pair of body parts are folded is illustrated. In this case, the converter 202 is pushed completely beyond the threshold 222 and is opposite the threshold 222.

FIG. 38 is a side view of the hinge structure of the foldable display device having a semi-automatic drive unit installed therein according to another embodiment of the present invention. FIG. FIG. 39 is a side view of a hinge structure of a foldable display device having a semi-automatic drive unit according to another embodiment of the present invention folded about 130 degrees. FIG. 40 is a side view of a fully folded hinge structure of a foldable display device having a semi-automatic drive unit according to another exemplary embodiment of the present invention.

38 to 40, in the foldable display device provided with the semi-automatic drive unit according to another exemplary embodiment of the present invention, the chain portion 230 fixed to the chain fixing portion 210 is folded while the pair of body portions are folded together. There is no change, the chain portion 230 connected to the opposite drive body 200 is moved while sliding to the other body portion with the drive body (200).

Referring to Figure 41, the joint portion 300 according to another embodiment of the present invention is configured with a guide groove 302 into which the chain portion 230 is inserted. Joint portion 300 according to another embodiment of the present invention is composed of a plurality of joints, the projections of each side and the concave portion is inserted into each other are joined to each other, by a metal pin used to connect the metal watch band It is configured to be connected.

In addition, the stopper is formed to maintain a plane in the unfolded state of the joint portion 300 and not bend in the outward direction.

42 is a perspective view of a chain part and a chain fixing part coupled to a driving body in a foldable display device having a semi-automatic driving part according to another exemplary embodiment of the present invention. FIG. 43 is a perspective view illustrating a chain portion fitted into a guide groove 302 formed at a joint portion in a foldable display device having a semi-automatic driving unit according to another exemplary embodiment of the present invention.

42 to 43, it can be seen that the chain portion 230 is fitted to the guide groove 302 formed on both ends of the joint portion 300 and can move.

While the preferred embodiments of the present invention have been described above using specific terms, such descriptions are for illustrative purposes only, and it is obvious that various changes and modifications can be made without departing from the spirit and scope of the following claims. It's work. Such modified embodiments should not be understood individually from the spirit and scope of the present invention, but should fall within the claims appended to the present invention.

Claims

A chain fixing part 210 is installed at one body part, a chain part 230 is fixedly connected to the chain fixing part 210, and a driving body 200 is installed at the other body part to move while sliding. The other end of the chain portion 230 is connected to the driving body 200,

The other body portion is provided with a pair of elastic modules 220 to face each other, the pair of elastic modules 220 is configured so that the elastic force acts in a direction facing each other,

A converting unit 202 is installed in front of the driving body 200, the converting unit 202 is disposed between the pair of elastic modules 220, and the pair of elastic modules 220 is the converting unit. Is configured to exert an elastic force on 202,

Each elastic module 220 is configured to have a critical point 222,

When the converter 202 is located outside the respective critical point 222, the driving body 200 is pushed outwards, and the converter 202 may move the respective critical point 222. When passing, the drive body 200 is a hinge structure of a foldable display device is installed, characterized in that the semi-automatic drive unit is configured to receive a force pulled inward.
The method of claim 1,

Each chain unit 232 of the chain portion 230 has a stopper portion, so that the rotation width is limited when the chain portion 230 is bent or unfolded folder is installed folder Hinge structure of a display device.
A chain fixing part 210 is installed at one body part, a chain part 230 is fixedly connected to the chain fixing part 210, and a driving body 200 is installed at the other body part to move while sliding. The other end of the chain portion 230 is connected to the driving body 200,

The other body portion is provided with a pair of elastic module 220,

A converting unit 202 is installed in front of the driving body 200, the converting unit 202 is disposed in a direction in which the elastic module 220 exerts a force, and the elastic module 220 is the converting unit. Is configured to exert an elastic force on 202,

The elastic module 220 is configured to have a critical portion 222,

When the converter 202 is located outside of each of the thresholds 222, the driving body 200 is forced outward, and the converter 202 is forced to the respective critical point 222. When passing through the drive body 200 is a hinge structure of a foldable display device is installed, characterized in that the semi-automatic drive unit is configured to receive a force pulled inward.
The method of claim 3, wherein

Semi-automatic, characterized in that the one body portion and the other body portion is connected to each other by the joint portion, the guide groove 302 is open at both ends of the joint portion, the chain portion is fitted into the guide groove 302 to move Hinged structure of the foldable display device provided with a driving unit.