KR102085234B1 - Foldable Display Device - Google Patents

Abstract

Disclosed is a foldable display device. The foldable display device according to the embodiment includes a first body and a second body which are formed in a plate shape having the same shape and are symmetrically formed; An image portion attached to the first body and the second body to be folded or unfolded and to have a bent arc when folded; A hinge device coupled to connect the first body and the second body, the hinge device being connected to rotate within a folded state overlapping each other and in an unfolded state lying on the same plane; A base portion formed with a shaft; First and second guide parts respectively coupled to the first and second shafts of the base part and having inclined guide rails; The slits are formed to be inclined on the side surface and the slits are coupled to the guide rails of the first and second guide parts, and guide members are respectively mounted to the first body and the second body.
According to this, the angle of inclination can be freely adjusted to achieve an acute or obtuse angle in addition to the folding and unfolding of the hinge device, and the adjusted angle can be temporarily maintained so that the convenience of use can be further improved. have.

Description

Foldable Display Device

Disclosed is a foldable display device, and more particularly, a first body and a second body of an electronic device having a folded display are rotatably connected, and a rotation angle between the first and second bodies is smoothly set. Related to a foldable display device.

Unless otherwise indicated herein, the contents described in this section are not prior art to the claims of this application, and inclusion in this section is not admitted to be prior art.

Industrial demand for portable electronic devices, including portable terminals, is increasing year after year, and accordingly, portable electronic devices having various forms and functions that meet the needs of consumers are being introduced.

Conventional portable terminals such as mobile phones have an image unit for displaying an image, a picture, and the like, and a portable terminal having a function of visually acquiring various information by watching a TV or using a wired or wireless Internet has appeared. have.

In addition, the portable terminal has been developed in various forms according to the needs and functional features of the consumer, and has been variously developed into a folding type, a slide type, a bar type, and the like.

In this case, the clamshell terminal refers to a terminal configured to expand while the two bodies are hinged to each other in order to expand the available immunity, and is continuously developed due to the superiority of structural features.

In particular, in recent years, as the development of thin-film liquid crystal technology and miniaturization of other components are possible, most portable terminals have become slim in general, and the demand thereof is increasing day by day.

However, since the appearance of conventional portable terminals has been developed based on a more suitable appearance to perform a communication function such as voice call and message transmission, there is a disadvantage in that it is somewhat inconvenient to use a multimedia service. Of the display device is long in the vertical direction, it is inconvenient to watch digital multimedia broadcasting, video files and the like.

In order to solve such a problem, Korean Patent No. 10-0909713 discloses a "hinge apparatus for a mobile terminal" as a registered patent of the present applicant, and an exemplary embodiment of the present invention improves the problems as described above. To this end, it discloses a hinge device for a portable terminal that can rotate the cover of the portable terminal in the vertical direction and 360 degrees in the vertical direction while ultimately improving the structural stability of the entire device.

According to the Korean Patent No. 10-0909713, there is a great advantage to improve the convenience of use, and to meet the needs of consumers who want to utilize the display unit of the mobile terminal in a relatively wide range. There is a need for improvement, and there is a need for the development of a new type of hinge device and an electronic device using the same.

For example, in order to meet the needs of consumers who prefer a large display screen despite being a small sized electronic device, a liquid crystal screen is formed on both of the hinged bodies, and when the electronic device is unfolded, two liquid crystal screens are combined and one. There is a need to provide a foldable display device in a form of forming a large screen of the present invention, and a development of a hinge device of a suitable form is required.

On the other hand, the foldable display is required to minimize the arc-shaped bent portion when folded so that the body is not lifted because the image portion is not folded like a paper and the arc-shaped bent portion having a predetermined radius is left.

Korean Patent Application No. 10-2011-0047360

When the contents are folded, the plurality of bodies may be in close contact with each other to minimize the volume, but the flexible display minimizes the curvature of the folded portion and presses both portions adjacent to the folded portion of the flexible display to prevent the plurality of bodies from being opened. It is possible to fold the minimum radius, and when it is unfolded, it embodies the pressing force so that it can be unfolded evenly when it is folded into the arc of the flexible display, so that the flexible display is flat even when it is unfolded. Its purpose is to provide a foldable display that can maintain state.

An object of the embodiment, the first body and the second body formed in a plate shape of the same shape and symmetrically formed; An image portion attached to the first body and the second body to be folded or unfolded and to have a bent arc when folded; A hinge device coupled to connect the first body and the second body, the hinge device being connected to rotate within a folded state overlapping each other and in an unfolded state lying on the same plane; A base portion formed with a shaft; First and second guide parts coupled to the first and second shafts of the base part and each having an inclined guide rail; The slit is formed to be inclined on the side surface, the slit is coupled to the guide rails of the first and second guide parts, and can be achieved by a foldable display device including a guide member mounted on the first body and the second body, respectively.

According to the disclosed embodiment, the tilting angle can be freely adjusted to form an acute or obtuse angle in addition to the folding and unfolding of the hinge device, and the adjusted angle can be temporarily maintained to further improve convenience of use. It has an effect.

1 is an exploded perspective view of an unfolded state of a foldable display device according to an embodiment;
2 is an exploded perspective view of a bottom view of an unfolded state of a foldable display device according to an embodiment;
3 is an exploded perspective view of a 'refraction connecting part' and a 'interlocking part' in a foldable display device according to an embodiment;
4 is an exploded perspective view of a 'hinge device' according to an embodiment
5 is a perspective view illustrating an unfolded state of the foldable display device according to the embodiment;
6 is a cross-sectional view taken along the line II-II of the 'hinge device' in the open state of FIG.
7 is a perspective view of a folded state of a foldable display device according to an embodiment;
8 is a cross-sectional view taken along the line II-II of the hinge device in the folded state of FIG.
9 is an enlarged view illustrating main parts of the hinge device in the folded state of FIG. 7;

Hereinafter, a preferred embodiment will be described in detail with reference to the accompanying drawings.

The embodiments to be described below are intended to be described in detail so that those skilled in the art to which the present invention pertains can easily practice the invention, and thus the technical spirit and scope of the present invention are limited. It does not mean.

In addition, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of description, terms specifically defined in consideration of the configuration and operation of the present invention will vary depending on the intention or custom of the user or operator It should be understood that definitions of these terms should be made based on the contents throughout the specification.

As illustrated in FIGS. 1 to 3, a foldable display device according to an embodiment includes: a first body 100 and a second body 200 formed in a plate shape having the same shape and symmetrically arranged; It is coupled to connect the first body 100 and the second body 200, and includes a hinge device (H) for connecting to rotate within the folded state and the folded state range overlapping each other placed on the same plane.

The present invention is portable and can be formed in the form of a general portable terminal such as a laptop computer, an electronic dictionary, a PDA, a mobile phone, and the like.

The first body 100 and the second body 200 are parts constituting the body of the foldable display device A, and may be folded or unfolded by being rotated in directions opposite to each other.

The first body 100 is formed with an LCD (liquid crystal display), etc., an image unit 800 for displaying a visual image, etc. is formed, and the second body 200 includes a keypad for inputting information. Can be formed.

Alternatively, the image part 800 may be formed over the first body 100 and the second body 200. In this case, the image unit 800 is made of a collapsible foldable material.

The image part 800 may be attached to the first body 100 and the second body 200 to be folded or unfolded to form a curved arc part 820 when folded.

The first body 100 or the second body 200 is connected to the hinge device (H) is driven to rotate and the hinge cover 130, the rail groove 132 is formed on both sides; Guide rails 112 which are inserted into the rail grooves 132 of the hinge cover 130 to provide a section in which the hinge cover 130 is moved are formed on both sides and the outer cover 110 interlocked with the hinge device H. ; It is connected to the hinge device (H) and coupled to overlap the outer cover 110, the support plate 120 is attached to the image portion 800; is configured to include.

The support plate 120 is formed by protruding the guide cover 122 to cover the first and second guide parts 300 and 400 on one side, and the upper surface of the guide cover 122 is formed with an arc-shaped curved portion 124 (Fig. 1).

The curved portion 124 is formed to accommodate the curvature of the curved arc portion 820 of the image portion 800 when folded.

That is, since the arc portion 820 having a predetermined curvature is formed even when the image portion 800 is bent, the curved portion 124 is formed on the guide cover 122 to provide a space for accommodating the arc portion 820. The breakage can be prevented by being formed.

The first and second guide parts 300 and 400 to be described later have arc grooves 350 and 450 respectively formed on both side walls thereof to accommodate the curved arc portions 820 of the image portion 800 (see FIGS. 6 and 13). ).

The outer cover 110 is provided with a receiving groove 114 to accommodate the first and second guide portions 300 and 400 on one side, and the curved surface portion 118 of the arc shape is formed on one side of the upper surface for the same reason as described above.

On both sides of the receiving groove 114, a mounting groove 116 is formed so that the guide members 500a and 500b to be described later can be coupled.

The hinge device H is formed to have a length corresponding to the width of the first and second bodies 100 and 200, and the stepped portions 29 having the plurality of through holes 292 are formed at both ends thereof, and are coupled to each through hole and are symmetrical. A base portion 2 on which first and second shafts 21 and 22 are formed; Coupling parts 310 and 410 respectively coupled to the first and second shafts 21 and 22 of the base part 2 are formed on one side, and are connected to the coupling parts 310 and 410 and have a predetermined area and are inclined on both sides. First and second guide parts 300 and 400 consisting of plate members 320 and 420 formed with 330 and 430; Slits (520a, 520b) are formed on the side surface to be coupled to the guide rails (330, 430) of the first and second guide parts (300, 400), guide members (500a, 500b) respectively mounted to the support plate 120; It is coupled to the end of the first and second shafts 21 and 22, respectively, the first and second hinge cover 130, the rail groove 132 is formed on the side;

The guide rails 330 and 430 of the first and second guide parts 300 and 400 that are inserted into and coupled to the slits 520a and 520b of the guide members 500a and 500b are combined in the form of interference fit and thus guide members 500a and 500b. Tighten the movement of the first and second body (100a, 200b) and the folding operation of the first and the second body (100,200) connected to each other tightly so as to exhibit a fixing force that can be temporarily fixed at a certain angle It was.

That is, the width lengths of the slit 520a and 520b and the width of the guide rails 330 and 430 are formed to be the same, or the width length of the guide rails 330 and 430 is slightly thicker than the width length of the slit 520a and 520b. By doing so, the aforementioned tight coupling state can be achieved.

The outer cover 110 of the first and second bodies 100 and 200 has guide rails 112 fitted to rail rails 132 of the first and second hinge covers 130 and formed on both sides thereof. It provides a moving section of the hinge cover 130.

Since the first and second hinge covers 130 are coupled to the first and second bodies 100 and 200, the first and second hinge covers 130 are also rotated and simultaneously driven when the first and second bodies 100 and 200 are rotated. 2, the length fluctuation of the body (100,200) is performed.

5 and 6, when the first and second bodies 100 and 200 are extended, the first and second hinge covers 130 are guided along the guide rails 112 of the first and second bodies 100 and 200. Inside).

On the contrary, referring to FIGS. 7 to 9, when the first and second bodies 100 and 200 are folded, the first and second bodies 100 and 200 are formed as the middle of the image part 800 is bent roundly to form the arc part 820. Out of the 1,2 hinge cover 130.

Therefore, a separation distance t between the guide rails 112 of the first and second bodies 100 and 200 and the ends of the first and second hinge covers 130 is formed.

The first and second guide parts 300 and 400 have arc-shaped grooves 350 and 450 respectively formed on both side walls thereof to accommodate the curved arc 820 of the image part 800.

The guide members 500a and 500b are formed with curved portions 590a and 590b to contact one side of the arc portion 820 of the image portion 800. Preferably, the curved portions 590a and 590b of the guide members 500a and 500b are formed to have the same curvature as the curved portion 124 of the guide cover 122.

Therefore, as shown in FIGS. 8 and 9, when the first and second bodies 100 and 200 are folded, the middle of the image part 800 is bent roundly to form an arc part 820, which is adjacent to the arc part 820. The curved portion 590a and 590b of the guide members 500a and 500b and the curved portion 124 of the guide cover 122 press the portion, so that the image portion 800 except for the arc portion 820 may be in a folded state. Therefore, the curvature of the arc part 820 can be minimized, and the other parts can be brought into close contact with each other so that the first and second bodies 100 and 200 can be folded without being lifted.

Hereinafter, the operation of the embodiment will be described.

As shown in FIGS. 5 and 6, when the first and second bodies 100 and 200 are extended to both sides, the first and second guide parts 300 and 400 are rotated opposite to each other, thereby becoming almost horizontal. 100 and 200 are moved inwardly of the first and second hinge covers 130 so that the ends of the guide rails 112 abut and stop horizontally.

6, the guide rails 330 and 430 of the first and second guide parts 300 and 400 are moved along the slits 520a and 520b of the two guide members 500a and 500b to reach the upper position in the drawing. The state becomes a state where the first and second bodies 100 and 200 are extended.

Due to the inclination angles of the slits 520a and 520b of the guide members 500a and 500b, the movement of the guide members 500a and 500b is moved in an upwardly inclined direction (based on FIG. 6). ) Is rotated while protruding to the outside (the upper direction in FIG. 8), the stepped portion 115 of the first and second bodies 100 and 200 and the end 133 of the first and second hinge covers 130 are in contact with each other. .

Meanwhile, as shown in FIGS. 7 and 8, when the first body 100 and the second body 200 are folded, the guide rails 330 and 430 move along the rail grooves 132 in opposite directions (the above-described unfolding operation). In the opposite direction).

Accordingly, the stepped portion 115 of the guide rail 112 of the first and second bodies 100 and 200 and the end 133 of the first and second hinge covers 130 are spaced apart by a predetermined distance t (see FIG. 8). .

When the first and second bodies 100 and 200 are folded in this way, the image part 800 is bent and an arc part 820 is formed in the center (see FIG. 8), and the bent arc part 820 is the first and second guide part. 300 and 400 may be accommodated in arc-shaped grooves 350 and 450 formed on both side walls.

In addition, the curved portion 590a and 590b of the guide members 500a and 500b and the curved portion 124 of the guide cover 122 press the portion adjacent to the arc portion 820 of the image portion 800. The image portion 800 except for the 820 may be folded and folded to minimize the curvature of the arc portion 820 and the other portions are in close contact with each other so that the first and second bodies 100 and 200 are not lifted and folded. Can be maintained.

On the other hand, there is a risk that the arcuate portion 820 of the burner 800 may not be completely straightened immediately after the folding operation after the folding operation, but the curved afterimage may remain in the present invention, but the curved portions 590a, 590b serves to push the image part 800 so that a curved afterimage does not remain.

Although described in connection with the preferred embodiment, it will be readily apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, all such modifications and variations are within the scope of the appended claims. Is self-explanatory.

2: Base 21: First Shaft
22; 2nd shaft 29: step
100: first body 110: outer cover
120: support plate 122: guide cover
124: curved portion 114: receiving groove
118: curved surface 130: hinge cover
132: rail groove 200: the second body
300: burner 330,430: guide rail
500a, 500b; Guide member
520a, 520b: Slit

Claims (6)

A first body and a second body symmetrically arranged;
An image part attached to the first body and the second body to be folded or unfolded and to have a bent arc when folded;
And a hinge device coupled to connect the first body and the second body and connected to rotate within a folded state range overlapping each other with an expanded state lying on the same plane.
The hinge device,
A base part having a length corresponding to the width of the first body and the second body, and having a plurality of through holes formed at both ends thereof, the base parts having first and second shafts symmetrically coupled to the through holes;
First and second guide parts respectively coupled to the first and second shafts of the base part, and first and second guide parts connected to the coupling part and inclined guide rails at both sides;
A slits are formed to be inclined on the side surface, the slit is coupled to the guide rails of the first and second guide parts, and guide members respectively mounted to the first body and the second body.
Each of the first body or the second body,
A hinge cover connected to the hinge device and driven to rotate and having rail grooves formed at both sides thereof;
An outer cover inserted into a rail groove of the hinge cover and having guide rails provided on both sides thereof to provide a section in which the hinge cover is moved, and linked to the hinge device;
And a support plate coupled to the hinge device and overlapping with the outer cover and having an image portion attached thereto.
The support plate is a foldable display device characterized in that the guide cover is formed to protrude so as to cover the first and second guide portion, the upper surface of the guide cover is formed an arc-shaped curved portion. delete delete The method of claim 1,
The outer cover is formed with a receiving groove to accommodate the first and second guide portion on one side, the curved surface portion of the arc shape is formed on one side upper surface,
Foldable display device characterized in that the mounting groove is formed on both sides of the receiving groove coupled to the guide member. The method of claim 1,
The first and second guide parts are formed in each of the arc-shaped grooves to accommodate the curved arc portion of the image portion on both side walls,
The guide member is a foldable display device characterized in that the curved portion is formed to contact the arc of the image portion. The method of claim 1,
The outer cover is a foldable display device characterized in that the guide rail which is fitted to the rail groove of the hinge cover is formed on the side to provide a moving section of the hinge cover.

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