KR20180081250A - A device including hinge - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device having a hinge for preventing breakage of a display device by maintaining a limit radius of curvature when bending a flexible display device.
A device having a hinge according to the present invention includes: a frame having a first frame and a second frame, the frame being formed on one surface of the first frame and the second frame; And a first frame and a second frame that are foldably and unfoldably coupled by a plurality of rods rotatably coupled by a rod shaft, wherein the folding or unfolding of the first frame and the second frame, And a hinge which is folded or folded in a piling manner.

Description

[0001] A DEVICE INCLUDING HINGE [0002]

The present invention relates to a device having a hinge, and more particularly, to a device having a hinge for preventing a breakage of a display device by maintaining a limit radius of curvature when bending a flexible display device.

In recent years, flat panel display devices such as LCD (Liquid Crystal Display device) and LED (Light Emitting Diode) are mainly used for various display devices. These flat panel display devices have advantages of thin thickness and light weight, and recently, high-quality image output has become possible, and thus they are used in display devices of many fields.

In addition, in recent years, the flexible technology and the curved surface technology, which are the most important technologies to be realized through such a flat panel display device, have been advanced and the related flat panel display devices have been actively developed, and some products are being commercialized and released.

The curved surface technology produces a display device curved with a certain curvature in order to increase the immersion feeling of users when using a flat display device which is made large by the development of production technology and to increase the viewing efficiency of the whole screen. Means a technique for expressing an image. The display devices to which such a curved surface technology is applied are applied to the production of a display device having a screen size of 130 cm and are already used by some users.

Further, the flexible technology has a radius of curvature which is a limit of the curvature at the time of bending the display screen to be greatly reduced compared to the past, and it is possible to prevent the display portion of the display device from being damaged even when bending and unfolding are repeated. Such a flexible technology makes it possible to provide a folding or roll-type display device, and an environment in which the area of the screen can be freely adjusted and used with ease is provided.

However, even a display device to which a flexible technology is applied has a limitation of bending, that is, a limit radius of curvature, and when the display device is bent beyond the limit radius of curvature, there is a problem that the display device is broken.

Korean Patent Publication No. 10-2015-0037300 (Publication date 2015.04.08)

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a device having a hinge that can maintain the limit radius of curvature when bending a flexible display device to prevent breakage of the display device.

In particular, it is another object of the present invention to provide a device having a simple structure hinge that can be used in a device other than a flexible display device, which must maintain a certain distance or a constant curvature.

According to an aspect of the present invention, there is provided a device including a hinge, comprising: a frame having a first frame and a second frame, the frame being formed on one surface of a first frame and a second frame; And a first frame and a second frame that are foldably and unfoldably coupled by a plurality of rods rotatably coupled by a rod shaft, wherein the folding or unfolding of the first frame and the second frame, And a hinge which is folded or folded in a piling manner.

The hinge includes a first rod having one end rotatably coupled to the frame and a second rod rotatably coupled to the other end of the first rod by a second rod axis.

The first rod includes a first rod arm and a second rod arm rotatably coupled to the first rod arm and the first rod axis.

And the first rod arm and the second rod arm are coupled to different frames of the first frame and the second frame.

And the second rod coupled to the other end of the first rod arm or the second rod arm is coupled to a frame different from the rod arm.

Wherein the first frame and the second frame are formed with a first frame arm and a second frame arm for coupling with the first rod and the second rod.

The first rod is coupled to the first frame arm, and the first frame arm is longer or the same length as the second frame arm.

And the first frame arm is disposed adjacent to the second frame arm on a surface facing the first frame and the second frame when the first frame arm is in the turned-on state.

The hinge according to the present invention and the device having the hinge according to the present invention can maintain the limit radius of curvature at the time of bending of the flexible display device to prevent breakage of the display device.

 The hinge according to the present invention and the device having the hinge according to the present invention can be used in a device other than the flexible display device in which a certain distance or a constant curvature must be maintained.

1 is a perspective view showing an example of a device having a hinge according to the present invention;
2 is a side view schematically showing a shape of a hinge portion.
3 is an illustration of an unfolded state;
Fig. 4 is an example of a half-folded state. Fig.
5 is an exemplary view of a folded state.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be noted that the drawings denoted by the same reference numerals in the drawings denote the same reference numerals whenever possible, in other drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. And certain features shown in the drawings are to be enlarged or reduced or simplified for ease of explanation, and the drawings and their components are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.

FIG. 1 is a perspective view showing an example of a device having a hinge according to the present invention, and FIG. 2 is a side view briefly showing a shape of a hinge part.

1 and 2, a device according to the present invention includes a frame 20, a first rod 41 (41A, 41B), a second rod 42 (42A, 42B), a first rod axis 31, And a second rod shaft 32 (32A, 32B).

The hinge of the device according to the present invention maintains the distance between the folding of the device and the frame 20 of the device at the time of unfolding to a minimum distance or more and also keeps the rotation angle of the device frame 20 uniform. The hinges are connected by a plurality of rods 41 and 42. The rods 41 and 42 are coupled by rod shafts 31 and 32 which are rotary shafts and connected to the rods 41 and 42 and the frame 20 Are joined by the engaging portions 43, 44.

The frame 20 is composed of more than one pair, and is pivotally coupled by the hinge 50. The frame 20 serves to fix and support the object 10 such as a flexible display device and serves to be coupled to the anti-hinge 50 instead of the object 10. [ Although the present invention is described on the assumption that the flexible display device is coupled to the frame 20, the present invention is not limited to this, Any object 10 requiring distance maintenance is applicable. The frame 20 can be formed of various materials such as synthetic resin, metal, and wood. If necessary, a circuit for driving the object 10 or an auxiliary structure for the function of the object 10 can be accommodated , And thus the present invention is not limited thereto. The frame 20 is spaced apart by the bending portion 11 where the bending of the object 10 is generated to fix the non-bending portion 12 of the object 10. The frame 20 is folded and unfolded by the hinge 50, at which time the first frame and the second frame rotate in pairs. That is, assuming that there is an imaginary line passing through the center of the first load hole and passing through the center of the first and second premises in FIG. 2, in the folding and spreading process, The angles formed between the angle and the virtual line and either side of the second frame 21B are maintained at the same angle. That is, the degree of rotation of the first frame 21A and the second frame 21B with respect to the first rod axis remains the same.

The frame 20 is formed with a frame arm 22, 23 for engagement with the hinge 50. The frame arms 22 and 23 are composed of a first frame arm 22 and a second frame arm 23 and 23A and 23B, respectively, and the first frame arm 22 and the second frame arm 23 Are formed in the respective frames 21A and 21B in pairs. Hereinafter, for convenience of description, it is assumed that the frame 20 is composed of a pair of first and second frames 21A and 21B. More specifically, the first arm 22A of the first frame arm 22 and the first arm 23A of the second frame arm 23 are formed in the first frame 21A, and the first frame arm 22 The second arm 22B of the second frame arm 23 and the second arm 23B of the second frame arm 23 are formed in the second frame 21B. The first frame arm 22 and the second frame arm 23 are formed on the side faces of the first frame 21A and the second frame 21B when they are spread as shown. Here, the first frame arm 22 and the second frame arm 23 may be formed on the back surface of the first frame 21A and the second frame 21B, particularly at a position close to another frame when expanded. For convenience of explanation, it is assumed that it is formed on the facing side.

The frame arms 22 and 23 are coupled to the rods 41 and 42 by engaging portions 43 and 44 and the engaging portions 43 and 44 are engaged with the frame arms 22 and 23 and the rods 41 and 42, Is rotatably coupled. The first frame arm 22 of the frame arms 22 and 23 is disposed closer to the first rod side 31 which is inwardly folded relative to the second frame arm 23. [ That is, as shown in FIG. 2, in the folded state, the first frame arm 22 is disposed close to the center and the second frame arm 23 is disposed relatively outside. The length of the first frame arm 22 is longer than or equal to the length of the second frame arm 23. If the length of the first frame arm 22 is shorter than the length of the second frame arm 23, the movement of the first rod 41 is impeded when the frame 20 is unfolded to limit the spreading angle at the time of unfolding Lt; / RTI > Here, the length of the first frame arm 22 may be used to limit the angle at the time of unfolding, but in the present invention, the first frame arm 22 is longer than the second frame arm 23 .

The first frame arm 22 is connected to one end of the first rod 41 (41A, 41B) of the first coupling portion 43 (43A, 43B) DP, And is rotated upon folding and unfolding with the portion 43 as an axis.

The first rod 41 serves to transmit the movement of any one of the frames 20 to the second rod 42 and conversely serves to transmit the movement of the other one of the frames transmitted through the second rod 42 to any one . To this end, the first rods 41 are configured in pairs and are rotatably coupled to each other by the first rod axle 31. One end of the first rod 41 is rotatably connected to the first frame arm 22 by a first engaging part 43 and the other end is connected to a second rod shaft 32 (32A, 32B) And is rotatably coupled to one end of the second rod 42 (42A, 42B).

The first rod arm 41A and the second rod arm 41B of the first rod 41 are rotatably coupled by the first rod shaft 31 as described above, Is determined by the distance from the first frame arm (31) to the first frame arm (22). Therefore, the engagement position by the first rod shaft 31 is determined at an arbitrary position of one end of the first rod 41 and the other end of the first rod 41 in consideration of the rotation angle. In addition, although the first rod 41 is shown as being linear in the figure, it may be bent or curved. At this time, the convex portion due to the refraction or curvature may be directed to the second rod 42. Meanwhile, the first rod 41 may be formed in a plate-like shape as shown in FIG. 1, but the present invention is not limited thereto.

The second rod 42 transmits the motion of the first rod 41 to the frame 20 and transmits the motion of the frame 20 to the first rod 41. To this end, the second rod 42 is constituted by a first rod arm 42A and a second rod arm 42B so as to be paired with the first and second rod arms 41A and 41B of the first rod 41 do. One end of the second rod 42 is rotatably coupled to the other end of the first rod 41 by the second rod shaft 32 and the other end of the second rod 42 is coupled to the second frame arm 23 by a second coupling (44).

Like the first rod 41, the second rod 42 may be bent or bent, and may be formed in a plate shape as shown in FIG.

The first rod axis 31 rotatably couples the first rod arm 41A and the second rod arm 41B of the first rod 41 to each other. The engagement position of the first rod shaft 31 is determined at an arbitrary position between the ends of the first rod 41. At this time, depending on the distance between the first rod shaft 31 and the first frame arm 22 The rotation angle is determined in consideration of the distance between the frames 20 and the radius of curvature of the object 10 fixed by the frame 20. [ As shown in FIG. 1, the first rod shaft 31 may be connected to a plurality of first rods 41, and may be formed as a long rod.

The second rod shaft 32 rotatably couples the other end of the first rod 41 and the one end of the second rod 42. The second rod shaft 32 may also be formed in a long rod shape.

The first and second coupling portions 43 and 44 are also connected to a pair of the first rod 41 and the first frame arm 22 and the pair of the second rod 42 and the second frame arm 23 And may be formed in a rod shape.

3 to 5 are views for explaining a process of folding a frame by a hinge. FIG. 3 is an example of a folded state, FIG. 4 is an example of a half folded state, and FIG. 5 is an example of a folded state .

3 to 5, the hinge of the present invention and the device having the hinge of the present invention pivotally connect the frame 21 so that the frame 21 of the device can be folded as shown in the figure. In particular, the hinge of the present invention interconnects the frames 21 between the paired frames 21, and keeps the spaces between the frames 21 in the process of folding or unfolding constant, . Accordingly, the hinge of the present invention is configured such that the object 10 to be fixed by the frame 21 is unfolded or folded in a state in which the minimum radius of curvature is ensured, and the object 10 is folded at a radius of curvature smaller than the minimum radius of curvature, .

When the first frame arm 22 is formed to be longer than the second frame arm 23 without being limited by the length of the frame arms 22 and 23 as described above, (21b) is kept in a straight horizontal state. At this time, the distance between the end points of the first rod arm 41A and the second rod arm 41B of the first rod 41 becomes minimum. The second rod 42 connected to the other end of the first and second rod arms 41A and 41B is folded by the second rod shaft 32 so that the first rod 41 and the second rod 42 The angle formed is minimized.

In this state, when the frame 20 is unfolded as shown in Fig. 4, one end of the first rod arm 41A and the second rod arm 41B are distant from each other, The other end of the arm 41A and the second rod arm 41B are also distant from each other. The other end of the first rod arm 41A and the other end of the second rod arm 41B move away from each other and the angle between the first rod 41 and the second rod 42 becomes large, , 42 are transmitted to the second frame arm 23, so that the frame 20 is opened at a predetermined angle. At this time, the distance between the frames 20 is kept unobtained by the first rod arm 41A of the first rod 41 and the second rod arm 41B.

When the movement continues, as shown in FIG. 5, the movement is performed until the first frame 21A and the second frame 21B are in parallel with each other.

When the object 10 such as the flexible display device is fixed to the frame over the first frame 21A and the second frame 21B in this process, even if the frame 20 is folded or unfolded, the minimum distance, the minimum radius of curvature Thereby preventing the object 10 from being burned.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And the like. Accordingly, such modifications are deemed to be within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

10: object 20: frame
21A: first frame 21B: second frame
22: first frame arm 23: second frame arm
31: first rod shaft 32: second rod shaft
41: first rod 41A: first rod arm
41B: second rod arm 42: second rod
43: first engaging portion 44: second engaging portion
50: Hinge

Claims (8)

A frame having a first frame and a second frame, the frame being formed on one surface of the first frame and the second frame; And
The first frame and the second frame are coupled to each other by a plurality of rods rotatably coupled by a rod axis so that the first frame and the second frame can be folded and unfolded. And a hinge for folding or folding the hinge. The method according to claim 1,
The hinge
A first rod having one end rotatably coupled to the frame,
And a second rod rotatably coupled to the other end of the first rod by a second rod axis. 3. The method of claim 2,
The first rod
A first rod arm,
And a second rod arm rotatably coupled by the first rod arm and the first rod axis. The method of claim 3,
Wherein the first rod arm and the second rod arm are coupled to different frames of the first frame and the second frame. 5. The method of claim 4,
Wherein the second rod coupled to the other end of the first rod arm or the second rod arm is coupled to a frame different from the coupled rod arm. 6. The method of claim 5,
Wherein the first frame and the second frame are formed with a first frame arm and a second frame arm for engagement with the first rod and the second rod. The method according to claim 6,
The first rod is engaged with the first frame arm,
Wherein the first frame arm is longer or the same length as the second frame arm. 8. The method of claim 7,
Wherein the first frame arm is disposed adjacent to the second frame arm on a surface facing the first frame and the second frame when the first frame arm is in the turned-on state.

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