WO2019139339A1

WO2019139339A1 - Hinge for foldable display device

Info

Publication number: WO2019139339A1
Application number: PCT/KR2019/000306
Authority: WO
Inventors: 박현민
Original assignee: 박현민
Priority date: 2018-01-09
Filing date: 2019-01-08
Publication date: 2019-07-18
Also published as: KR20190084836A

Abstract

The present invention relates to a hinge for a foldable display device and, more particularly, to a hinge for a foldable display device in which, when a pair of body parts are folded in a display device provided on an outer surface of a flexible display panel, joint parts can maintain a completely semi-circular shape; and when the body parts are folded and then unfolded, joints of the outer edges are sequentially deployed around a central joint located at the center of the joints, thereby preventing the problem that a flexible display panel installed on the surface of a smartphone, a cell phone, or a tablet is folded or distorted, such that the durability of a product is increased.

Description

Hinges for Foldable Display Unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge for a foldable display device and more particularly to a hinge for a foldable display device in which when a pair of body parts is folded in a display device provided on an outer surface of a flexible display panel, When the body is folded, the joints of the outer periphery are sequentially extended around the central joint located at the center of the joint, resulting in folding or collapsing of the flexible display panel installed on the surfaces of smart phones, mobile phones, tablets, The present invention relates to a hinge for a foldable display device.

The mobile terminal may be configured to perform various functions. Examples of such various functions include a data and voice communication function, a function of photographing a video or a moving image through a camera, a voice storage function, a music file playback function through a speaker system, and an image or video display function.

Some mobile terminals include additional functions to execute games, and some other mobile terminals are also implemented as multimedia devices. Moreover, recent mobile terminals can receive a broadcast or multicast signal to view a video or television program.

In addition to the above functions, efforts to support and increase the functions of the current mobile terminal are continuing. Such efforts include not only changes and improvements in the structural components that form the mobile terminal, but also additions and improvements of software and hardware.

Generally, in a mobile terminal, a display module displays information processed in a mobile terminal. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed.

When the mobile terminal is in the video communication mode or the photographing mode, the displayed image or UI or GUI is displayed. The display module may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a 3D display And the like.

Among them, a flexible display (or a flexible LCD) can be arbitrarily changed in its shape, and the research is now in full swing. However, it seems that it will take a lot of time to carry a paper-like display like a scroll like the current fancy movie shows.

Therefore, until the development of the flexible display is progressed and the use is fully activated, the transitional form will be widely used, and this form will not be significantly different from the present terminal structure. In addition, there is a need to describe a mode of use and a protection method thereof when a flexible display being developed is used in a mobile terminal.

A patent document similar to the hinge structure for a mobile communication apparatus in which the flexible display panel according to the present invention is installed includes Publication No. 10-2015-0096827, entitled " Hinge Device and Foldable Display Device Including the Hinge Device "

In the display device provided with the flexible display panel on the outer surface of the flexible display panel, when the pair of body parts is folded, the joint part can maintain the shape of the semicircle completely so that a part of the joint part of the joint part does not protrude, In the folded state, the joints of the outer periphery are sequentially deployed around the central joint located at the center of the joint, resulting in the problem that the flexible display panel installed on the surface of the smartphone, the cell phone, and the tablet is folded or collapsed So that the durability of the product is increased. SUMMARY OF THE INVENTION It is an object of the present invention to provide a hinge for a display device.

In order to achieve the above object, a hinge for a foldable display device according to the present invention comprises:

A foldable display device comprising: a pair of body parts; and a joint part formed of a plurality of joints connecting the body parts,

Wherein the foldable display device is configured to engage with a hinge for a display device, the hinge for the device on the display includes a center bar

A lower slider rotatably connected to the center bar; An upper slider that slides on the lower slider; And a middle slider connecting the lower slider and the upper slider;

And the middle slider is rotatably connected to the center bar,

The middle slider is provided with a rotary link that is rotatable and has arms extending in opposite directions,

One arm of the rotating link is rotatably connected to the lower slider and the other arm of the rotating link is rotatably connected to the upper slider,

Wherein the middle slider is coupled to rotate the toothed wheel and the toothed wheel of the middle slider is engaged with the toothed gear provided on the lower slider and the upper slider.

Wherein the center bar is coupled to a center joint located at a center portion of the joint portion, and the pair of upper sliders are coupled to the pair of body portions, respectively,

Wherein the joint part is composed of a plurality of joints, and the joints are connected to each other by insert injection,

And the toothed portion is formed at a portion where the pair of lower sliders are connected to the center bar, and the toothed gears are configured to mesh with each other.

The hinge for a foldable display device according to the present invention is installed in an out-foldable display device in which a flexible display panel is installed on the outside in a state where a body is folded. When a folding or unfolding operation of a body part is performed, Since the force is not directly applied to the joint part, a part of the joint part of the joint part protrudes and the flexible display panel is not damaged, and since a great force is not applied to the joint part, the joint part is correctly folded And when a pair of body parts is deployed, the joints of the joint part can not be properly deployed, and a part of the joint is not protruded. As a result, there is a remarkable effect that there is little possibility of damage to the flexible display panel attached to the body part and the joint part.

That is, when the hinge for a foldable display device according to the present invention is configured to be coupled with a central joint and a pair of body parts located at the center of the joint part, and a pair of body parts are folded, part of the joints of the joint part forms a circle When the body part is folded, the joints of the outer joints are sequentially deployed around the central joint located at the center of the joint joint part, and there is no problem that a part of the joint protrudes at all There is a remarkable effect that does not occur.

Therefore, the durability of the foldable display device such as the smart phone, the mobile phone, and the tablet is increased, and the user is not likely to experience the distortion of the center portion of the user's own foldable display device.

1 is a plan view of a hinge for a foldable display device according to the present invention.

2 is a rear view of a hinge for a foldable display device according to the present invention.

3 is a side view of a hinge for a foldable display device according to the present invention.

4 is a side view showing a folded state of the hinge for the foldable display device according to the present invention.

5 is a perspective view showing a hinge for a foldable display device according to the present invention attached to a bottom surface of a body part.

FIG. 6 is a perspective view of the hinge for a foldable display device according to the present invention shown in FIG. 5 attached to the bottom of the body.

7 to 10 are perspective views illustrating a process of assembling a hinge for a foldable display device according to the present invention.

FIG. 11 is a perspective view illustrating a hinge for a foldable display device according to the present invention. FIG.

12 is a perspective view of the hinge for the assembled display of the foldable display shown in FIG. 11, as viewed from below.

13 is a perspective view showing a folded state of a hinge for a foldable display device according to the present invention.

FIG. 14 is a perspective view showing a folded state of the hinge for a foldable display device according to the present invention. FIG.

15 is a plan view showing a hinge for a foldable display device according to the present invention in which a rotating link is connected to an upper slider and a lower slider in a state where an upper slider is indicated by a dotted line.

16 is a perspective view of a hinge for a foldable display device according to the present invention in which a middle link and a middle link are installed on a middle slider.

FIG. 17 is a perspective view illustrating a hinge for a foldable display device according to the present invention, in which a body is installed on one side. FIG.

18 is a perspective view showing a state in which a toothed gear is installed on a sliding guide as a modification of the hinge for a foldable display device according to the present invention.

19 is a perspective view showing a state in which a middle slider is installed on the sliding guide shown in FIG.

20 is a perspective view showing a state in which a middle link and a toothed wheel are installed in a middle slider installed in a modification of the hinge for a foldable display device according to the present invention.

FIG. 21 is a perspective view showing a modification of the hinge for a foldable display device according to the present invention, in which an upper slider provided with a toothed gear is inserted into a lower slider.

22 is a perspective view and an inner side view of a right side of the hinge in a state in which the body is extended 180 degrees in the modification of the hinge for a foldable display device according to the present invention.

23 is a perspective view and an internal side view of the right side of the hinge in a state in which the body is folded in a modified example of the hinge for a foldable display device according to the present invention.

24 is a perspective view and an inner side view of a right side of the hinge in a state in which the body is completely folded in the modification of the hinge for a foldable display device according to the present invention.

FIG. 25 is a perspective view showing a joint part at the center of a body to which a hinge for a foldable display device according to the present invention is attached.

** Explanation of symbols **

10: body part 40: joint part 41: central joint

42: insert injection part 50: lower slider 52: center bar

54: middle link connection part 56: middle slider

57: middle link 58: upper slider

62: rotating link 64: connecting groove

68: sliding guide 72:

84: Gear wheel 92: Connecting pin

151: side sliding portion 158: side guide portion

1 is a plan view of a hinge for a foldable display device according to the present invention. 2 is a rear view of a hinge for a foldable display device according to the present invention. 3 is a side view of a hinge for a foldable display device according to the present invention.

1 and 2, a foldable display device according to the present invention includes a joint part 40 composed of two body parts 10 and a joint part 40 such that a middle part thereof is folded, Are connected to each other by an insert injection part 42 constituted by an insert injection method with a material such as rubber, silicone, plastic or the like.

The flexible flexible display panel according to the present invention is installed on the body part 10 and the insert injection part 42 shown in Fig.

2 and 3, the upper slider 50 and the center bar 52 are directly fixed to the bottom of the central joint 41 of the pair of body parts 10 and the joint part 40 according to the present invention. do.

Referring to FIG. 4, in a state in which the hinge for the foldable display device according to the present invention is completely folded, the joint part 40 composed of a plurality of joints has a semicircular shape. Further, the lower slider 58 according to the present invention is pushed by the joint portion 40.

5 is a perspective view showing a hinge for a foldable display device according to the present invention attached to a bottom surface of a body part. FIG. 6 is a perspective view of the hinge for a foldable display device according to the present invention shown in FIG. 5 attached to the bottom of the body.

5 and 6, when the hinge for the foldable display device according to the present invention is assembled, the left and right upper sliders 50 are fixedly attached to the bottom surfaces of the left and right body portions 10, do.

The central bar 52 of the present invention is fixedly attached to the bottom surface of the central joint 41.

The lower slider (58) according to the present invention is configured to be fitted to a side surface of the upper slider (50).

Referring to FIG. 7, a rotation protrusion 66 coupled to both front and rear vertexes of the lower slider 58 according to the present invention is inserted into a hole formed in both sides of the center bar 52, As shown in FIG.

One lower slider is provided on the left and right sides of the center bar 52 of the present invention so as to be rotatable. However, for the sake of explanation, the lower slider 58 is installed on the right side of the center bar 52 in Figs.

8, a sliding guide 68 is provided on the lower slider 58 of the present invention, and a middle slider 56 having a middle link 57 rotating link 62 is mounted on the sliding guide 68 of the present invention. As shown in Fig.

The middle link 57 rotatably connected to the front portion of the middle slider 56 of the present invention is rotatably connected to the middle link connecting portion 54 configured to protrude from the center bar 52.

When the lower slider 58 rotates about the center bar 52 according to the present invention, the middle link 57 connected to the middle link connecting portion 54 also rotates, and the middle slider 56 is rotated by the sliding guide 68 As shown in Fig.

9, one end of a rotary link 62 rotatably installed in the middle slider 56 according to the present invention is rotatably connected to the connection groove 64 of the lower slider 58, and the other end Is rotatably connected to the sliding connection groove (51) of the upper slider (50).

The upper slider (50) according to the present invention is configured such that the side sliding portions (151) formed on both sides are fitted to the side guide portions (158) of the lower slider (58).

Referring to FIG. 10, the left side of the center bar 52 of the present invention is shown as being assembled, and the right side is shown as being disassembled.

FIG. 11 is a perspective view illustrating a hinge for a foldable display device according to the present invention. FIG. 12 is a perspective view of the hinge for the assembled display of the foldable display shown in FIG. 11, as viewed from below.

11 and 12, upper and

lower sliders

50 and 58 and a middle slider 56 are assembled on the right and left sides of the center bar 52 of the present invention.

In the state where the right and left lower sliders 58 are rotatably connected to the center bar 52 according to the present invention, the portions of the right and left lower sliders 58 abutting each other are engaged with gear teeth 72 So that when the right and left lower sliders 58 move, they are simultaneously rotated by the same angle in opposite directions to each other.

Both ends of the rotary link 62 according to the present invention are rotatably connected to the connection groove 64 and the sliding connection groove 51 by the connection pin 92 and connected to be rotatable while sliding.

13 is a perspective view showing a folded state of a hinge for a foldable display device according to the present invention. FIG. 14 is a perspective view showing a folded state of the hinge for a foldable display device according to the present invention. FIG.

13 and 14, as the hinge for the foldable display device according to the present invention is folded, the right and left upper sliders 50 are pushed toward the center bar 52 and slide up.

15, both ends of the rotating link 62 provided on the middle slider 56 according to the present invention are connected to the connecting groove 64 of the lower slider 58 and the upper slider 50 (Not shown).

The extended end of the rotary link 62 connected to the sliding connection groove 51 according to the present invention by the connection pin 92 is configured to slide while sliding along the sliding connection groove 51.

16, the middle slider 56 is provided with a rotatable rotary link 62 and the middle slider 56 is provided with a middle link 57 so as to be rotatable on the left front side thereof.

Referring to FIG. 17, a body part 10 is attached to an upper slider 50 located on the left side of a hinge for a foldable display device according to the present invention.

18 is a perspective view showing a state in which a toothed gear is installed on a sliding guide as a modification of the hinge for a foldable display device according to the present invention. 19 is a perspective view showing a state in which a middle slider is installed on the sliding guide shown in FIG.

Referring to Figs. 18 to 19, a modification of the hinge for a foldable display device according to the present invention is shown in which the rotary link 62 shown in Fig. 16 is replaced by a gear 84. [

A gear 82 is formed on the sliding guide 68 of the lower slider 58 according to the present invention and a gear 84 is provided on the right side of the middle slider 156 instead of the rotary link 62.

The gear 84 provided on the middle slider 156 according to the present invention is configured to engage with a gear 82 formed on the sliding guide 68. [

When the lower slider 50 moves up and down with respect to the center bar 52 according to the present invention, the toothed wheel 84 of the middle slider 156 moves along the gear 82 on the sliding guide 68 It moves while rotating.

Referring to FIG. 20, a gear 84 is rotatably installed on the rear surface of the middle slider 156 according to the present invention, instead of the rotary link 62.

21, the upper slider 50 is fitted to the lower slider 58 in a state where the middle slider 156 according to the present invention is installed on the center bar 52 and the sliding guide 68.

22, the upper slider 50 according to the present invention is provided with a toothed gear 86 and the toothed gear 86 is meshed with the toothed wheel 84 of the middle slider 156 .

The gear 84 of the middle slider 156 according to the present invention is gear engaged with the gear 82 formed on the slide guide 68 and the gear 86 formed on the bottom surface of the upper slider 50 .

23 is a perspective view and an internal side view of the right side of the hinge in a state in which the body is folded in a modified example of the hinge for a foldable display device according to the present invention. 24 is a perspective view and an inner side view of a right side of the hinge in a state in which the body is completely folded in the modification of the hinge for a foldable display device according to the present invention.

23 and 24, the upper slider 50 according to the present invention is moved toward the center bar 52 while the lower slider 58 is folded on the basis of the center bar 52 according to the present invention .

In this case, the toothed gear 84 of the middle slider 156 according to the present invention rotates while the toothed gear 86 of the upper slider 50 moves toward the center bar 52.

Referring to FIG. 25, a joint part 40 connecting a pair of body parts 10 according to the present invention is configured as a plurality of joints, and each joint is configured to include a shaft.

The joint portion 40 configured to include the shaft shown in FIG. 25 is configured to insert the joint portion 40 while forming the insert injection portion 42 as shown in FIG. 1 by insert injection with a material such as plastic, rubber, Each of the joints is connected to each other.

While the preferred embodiments of the present invention have been described above using specific terms, such description is for illustrative purposes only and that various changes and modifications may be made without departing from the spirit and scope of the following claims. Day. Such modified embodiments are not to be understood individually from the spirit and scope of the present invention, but are to be regarded as falling within the scope of the appended claims.

Claims

A foldable display device comprising: a pair of body parts; and a joint part formed of a plurality of joints connecting the body parts,

Wherein the foldable display device is configured to engage with a hinge for a display device,

The display device hinge includes:

Centered bar

A lower slider rotatably connected to the center bar;

An upper slider that slides on the lower slider; And

And a middle slider connecting the lower slider and the upper slider;

And the middle slider is rotatably connected to the center bar.
The method according to claim 1,

The middle slider is provided with a rotary link that is rotatable and has arms extending in opposite directions,

Wherein one arm of the rotating link is rotatably connected to the lower slider and the other arm of the rotating link is rotatably connected to the upper slider.
The method according to claim 1,

Wherein the middle slider is rotatably connected to a gear wheel and the gear wheel of the middle slider is engaged with a gear provided on the lower slider and the upper slider.
The method according to claim 1,

Wherein the center bar is coupled to a center joint located at a center portion of the joint portion, and the pair of upper sliders are coupled to the pair of body portions, respectively.
The method according to claim 1,

Wherein the joint part is composed of a plurality of joints, and the joints are connected to each other by insert injection.
The method according to claim 1,

Wherein a pair of lower sliders are formed at a portion where the center bar is connected, and the toothed gears are engaged with each other.