KR102423118B1 - Variable stiffness structure and flexible display device having the same - Google Patents

Abstract

The present invention relates to a deformable flexible state, a variable rigidity structure capable of being deformable from a flat state to a rigid state maintaining a certain strength in a flat state, and a flexible display device using the same.
The variable rigidity structure according to the present invention has a form in which the main block and the auxiliary block are divided and attached to one surface of the flexible sheet, or the rigid block is divided and arranged on one surface of the flexible sheet, and a magnet is provided on the side of the rigid block, It may be implemented in a form using a control plate detachably attached to a magnet, or in a form having a control unit for pushing the control plate.
When a flexible display device is implemented using such a variable rigidity structure, portability is improved by rolling up the display device when carrying, and the display device can be maintained in a flat state during use, thereby improving convenience of use.

Description

Variable rigidity structure and flexible display device including same

The present invention relates to a variable rigidity structure capable of being converted into a deformable flexible state and a rigid state capable of maintaining a flat state with strength, and a flexible display device including the same.

There are various types of display devices that display an image, such as a liquid crystal display (LCD), a plasma display (PDP), an organic light emitting display device (OLED), an electrophoretic display device (EPD), and the like.

Recently, a flexible display that can be deformed in response to an external physical force has been developed and research for applying it to an image display device is being actively conducted.

The flexible display device refers to a display device that is bent, bent, folded, or rolled like paper while maintaining the display characteristics of the existing flat panel display device.

The flexible display panel may be implemented as a plastic substrate that can be deformed by external pressure.

The plastic substrate may have a structure in which a barrier coating is treated on both sides of a base film. In the case of the base material, it may be implemented with various resins such as PI (Polyimide), PC (Polycarbonite), PET (Polyethyleneterephtalate), PES (Polyethersulfone), PEN (Polythylenenaphthalate), FRP (Fiber Reinforced Plastic), and the like. In addition, the barrier coating is performed on the surfaces opposite to each other in the base material, and an organic or inorganic film may be used to maintain flexibility.

A flexible display panel can be rolled or folded into various shapes because the panel itself has flexibility. On the other hand, the flexible display device can be folded or unfolded according to the usage environment. In particular, when the display device is flattened, a constant strength must be maintained to increase the convenience of use.

When the display device is always maintained only in a soft, limp state, it may be inconvenient when the display device is mounted and used, and in particular, in the case of a display device having a touch input method, a touch operation may be uncomfortable.

In addition, if the display device does not maintain a flat state, there is a problem in that the display image quality is also deteriorated.

An object of the present invention is to provide a variable rigidity structure in which rigidity can be changed into a flexible state that can be bent or folded and a rigid state that can maintain a flat state by maintaining constant strength, and a display device including the same.

It is an object of the present invention to provide a variable rigidity structure capable of freely switching between a flexible state that can be folded or bent through a simple operation and a rigid state that maintains a constant strength.

Another object of the present invention is to provide a variable rigidity structure that has a simple structure, can be thinned, and can be applied to a flexible display device.

Another object of the present invention is to use a variable rigidity structure to be freely converted into a flexible state in which the display device can be bent or folded according to a user's selection, and a rigid state in which the screen of the display device can be maintained in a flat state. To provide a display device.

A variable rigidity structure according to the present invention is to enable switching between a flexible state and a rigid state, and includes a flexible sheet having flexibility, a main block provided on one surface of the flexible sheet to provide rigidity and divided into a plurality, and the and an auxiliary block connected to one or both sides of the main block by the flexible sheet so that the flexible sheet can be folded and folded so as to overlap the main block.

When the auxiliary block is placed side by side on the side of the main block, the divided part of the main block and the auxiliary block is in a flexible state in which it can be deformed. It becomes a rigid state that cannot be defeated.

The auxiliary block is divided in the same way as the main block. If the main block and the auxiliary block are not equally divided, flexibility in the soft state is limited.

When the overlapping portions of the main block and the auxiliary block are provided with magnets to be attached to each other by magnetic force, the rigid state may be more firmly maintained.

In addition, the variable rigidity structure according to the present invention can be divided so that it can be rolled in the form of a polygonal column. In this case, it is preferable that the side surfaces of the main block and the auxiliary block are formed to be inclined in order to allow the flexible sheet to be rolled up in a polygonal column shape facing outward.

When such a variable rigidity structure is applied to a flexible display device, it is possible to roll the flexible display device into a polygonal pole shape when carrying, thereby increasing the convenience of use.

In addition, when the variable rigidity structure is rolled into a polygonal column shape, it can be overlapped in multiple layers, and at this time, the main block or auxiliary block of the inner layer and the main block or auxiliary block of the outer layer can be attached by magnetic force,

In the state of being rolled up in the form of a polygonal column, the side surfaces of the main block or the auxiliary block in contact with each other may be attached by magnetic force.

This structure allows the variable rigidity structure to maintain the shape of a polygonal column by magnetic force.

A flexible display device may be implemented using the variable rigidity structure and the flexible display panel as described above.

In this case, the auxiliary block may be folded toward the front side of the display panel and overlapped, and it is preferable that the area where the auxiliary block overlaps among the front surface of the display panel is a non-display area in which no image is displayed.

This is to prevent the auxiliary block of the variable rigidity structure from blocking the display screen when the flexible display device is used.

In another embodiment, the present invention provides a display panel having flexibility, a rigid block arranged in a plurality of divisions on the rear surface of the display panel, magnets provided on both sides of the rigid block, and the display panel can be rotated It is connected and attached to the side of the magnet, or is attached to overlap the front surface of the display panel, and can implement a flexible display device including a control plate attached to the magnet.

In this structure, the flexible state and the rigid state are switched by adjusting the angle of the control panel with respect to the display panel.

The control plate may be attached to the rear surface of the display panel using a flexible sheet or may be connected to the rigid block by a hinge.

When the control panel is attached to the rear surface of the display panel by using a flexible sheet, the configuration is simple, which has advantageous effects in terms of thickness reduction and weight reduction.

And a flexible display device according to another embodiment of the present invention includes a display panel having flexibility, a control unit provided on the rear surface of the display panel and provided with a magnet on the side, and a protrusion that protrudes or is accommodated from the side; It may be implemented as a control plate rotatably connected to a side surface of the control unit.

This structure has the effect of making the bezel of the display device slim because the control unit and the control panel can be disposed on the rear surface of the display.

The variable rigidity structure according to the present invention has an effect that can be switched between a ductile state that can be bent by a simple operation and a rigid state that maintains strength in a flat shape.

In addition, the variable rigidity structure according to the present invention has a simple structure and can be made thin, so that it can be easily applied to a flexible display device.

The display device having the variable rigidity structure as described above can be carried by folding or rolling the display device according to the needs of the user, and when in use, the display device can maintain its strength in a flat state, thereby improving marketability and convenience. bring

1 is a perspective view showing a variable rigidity structure according to a first embodiment of the present invention.
2 is a side view showing the ductility of the variable rigidity structure according to the first embodiment of the present invention.
3 is a perspective view showing a rigid state of the variable rigidity structure according to the first embodiment of the present invention.
4 is a side view showing a rigid state of the variable rigidity structure according to the first embodiment of the present invention.
5 is a perspective view showing a variable rigidity structure according to a second embodiment of the present invention.
6 is a side view showing the folding and unfolding of the variable rigidity structure according to the second embodiment of the present invention.
7 is a perspective view showing a variable rigidity structure according to a third embodiment of the present invention.
8 is a side view showing a rolled state of a variable rigidity structure according to a third embodiment of the present invention.
9 is a perspective view showing a variable rigidity structure according to a fourth embodiment of the present invention.
10 is a side view showing the deformation of the variable rigidity structure according to the fourth embodiment of the present invention.
11 is a perspective view showing a variable rigidity structure according to a fifth embodiment of the present invention.
12 is a side view showing the deformation of the variable rigidity structure according to the fifth embodiment of the present invention.
13 is a perspective view illustrating a flexible display device according to a sixth embodiment of the present invention.
14 is a rear perspective view showing a flexible display device according to a sixth embodiment of the present invention.
15 is a side view showing a flexible display device according to a sixth embodiment of the present invention.
16 is a perspective view illustrating a flexible state of a flexible display device according to a sixth embodiment of the present invention.
17 is a rear perspective view showing a flexible state of the flexible display device according to the sixth embodiment of the present invention.
18 is a side view showing a flexible state of the flexible display device according to the sixth embodiment of the present invention.
19 is a perspective view showing a rigid state of the flexible display device according to the sixth embodiment of the present invention.
20 is a rear perspective view showing a rigid state of the flexible display device according to the sixth embodiment of the present invention;
21 is a side view showing a rigid state of the flexible display device according to the sixth embodiment of the present invention.
22 is a rear perspective view showing a flexible state of the flexible display device according to the seventh embodiment of the present invention.
23 is a side view showing a flexible state of the flexible display device according to the seventh embodiment of the present invention.
24 is a rear perspective view showing a rigid state of the flexible display device according to the seventh embodiment of the present invention.
25 is a side view showing a rigid state of the flexible display device according to the seventh embodiment of the present invention.
26 to 29 are views for explaining the operation of the control unit of the flexible display device according to the seventh embodiment of the present invention.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

In the following, the provision or arrangement of an arbitrary component on the “upper (or lower)” or “top (or below)” of the substrate means that any component is provided or disposed in contact with the upper surface (or lower surface) of the substrate. It is not intended to mean, but is not limited to, the inclusion of other components between the substrate and any component provided or disposed on (or under) the substrate. In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, order, or number of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but other components may be interposed between each component. It should be understood that each component may be “interposed” or “connected”, “coupled” or “connected” through another component.

1 is a perspective view illustrating a variable rigidity structure according to a first embodiment of the present invention, and FIG. 2 is a side view showing a ductility of the variable rigidity structure according to the first embodiment of the present invention.

As shown, the variable rigidity structure according to the first embodiment of the present invention includes a flexible sheet 130 , a main block 110 divided and attached to one surface of the flexible sheet 130 , and the main block 110 . ) includes an auxiliary block 120 disposed on one side.

The flexible sheet 130 has flexibility to be freely bent.

The flexible sheet 130 may be made of a synthetic resin film or a metal thin plate material.

The main block 110 and the auxiliary block 120 provide a constant strength, and should have relatively higher strength than the flexible sheet 130 . It is preferable that the main block 110 and the auxiliary block 120 have a strength to a degree that they are not bent or deformed by a small external force or their own weight.

Here, the small external force refers to the magnitude of the force applied by the user to fold or roll it.

Between the main block 110 and the auxiliary block 120, the interval of the auxiliary block 120 that can be folded to the rear surface of the main block 110 is set in close contact.

The main block 110 and the auxiliary block 120 are attached to one surface of the flexible sheet 130 , and at this time, the main block 110 and the auxiliary block 120 are attached to set a gap between the main block and the divided main block. A gap may be set between the 110 and the auxiliary block 120 , but may be disposed without a gap in a substantially close contact state.

It is preferable that the main block 110 and the auxiliary block 120 are equally divided. This is to enable bending as a whole along the divided line in a state in which the auxiliary block 120 is arranged side by side on one side of the main block 110 .

As shown in FIG. 1 , when the main block 110 and the auxiliary block 120 are placed on the same plane, the variable rigidity structure 100 may be bent as shown in FIG. 2 .

2 is a side view of the auxiliary block 120 viewed from the side, in FIG. 2 , the main block 110 is hidden behind the auxiliary block 120 .

In the flexible state, since the main block 110 and the auxiliary blocks 120 are connected by the flexible sheet 130 on one side, deformation is possible along the divided line.

The drawing shows a downwardly bent state, but in the case of upward bending, the deformation is limited. When bending upward, the side surfaces of the main block 110 and the auxiliary block 120 interfere with each other and the amount of deformation is extremely small, or when they are substantially in close contact, the side surfaces of the main block 110 and the auxiliary block 120 are not bent upward.

3 is a perspective view illustrating a rigid state of the variable rigidity structure according to the first embodiment of the present invention, and FIG. 4 is a side view showing the rigid state of the variable rigidity structure according to the first embodiment of the present invention.

As shown, when the auxiliary block 120 is folded and overlapped on one surface of the main block 110, the downward deformation is also limited, so that the variable rigidity structure is in a rigid state in which neither upward nor downward deformation is possible.

5 is a perspective view showing a variable rigidity structure according to a second embodiment of the present invention, and FIG. 6 is a side view showing folding and unfolding of the variable rigidity structure according to the second embodiment of the present invention.

The variable rigidity structure according to the second embodiment of the present invention shows a form that can be rolled up in the form of a triangular prism.

First, referring to FIG. 5 , in the variable rigidity structure according to the second embodiment of the present invention, main blocks 41 , 42 , 43 , 44 , 45 and 46 are divided into six, and the main blocks 41 , 42 , 43 ,44,45,46 on both sides of the auxiliary blocks (41-1,42-1,43-1,44-1,45-1,46-1,41-1,42-1,43-1,44) -1,45-1,46-1) are divided in the same way as the main blocks 41,42,43,44,45,46. Although the flexible sheet is not separately illustrated in FIG. 5 for convenience of illustration, the upper surfaces of the main blocks and the auxiliary blocks are attached to the flexible sheet as in the first embodiment. In FIG. 6, the flexible sheet is simply indicated by a thick line on one surface.

In the rigid state, the portion where the auxiliary block overlaps the main block provides strength, so if the auxiliary block is disposed on both sides of the main block, more robust strength can be secured in the rigid state.

Referring to FIG. 6 , the bending and unfolding to be rolled up will be described.

6 is a state in which a flexible sheet (thick line) is attached to the upper surface of the main blocks 41, 42, 43, 44, 45, and 46, and in this state, the main block is transformed into a shape of rolling upwards as shown in the direction of the arrow. can do.

At this time, by appropriately setting the thickness and width of the main block, the variable rigidity structure can be deformed to be double rolled into a triangular prism shape as shown in the lower part of FIG. 5 .

7 is a perspective view showing a variable rigidity structure according to a third embodiment of the present invention, and FIG. 8 is a side view showing a rolled state of the variable rigidity structure according to the third embodiment of the present invention.

The third embodiment of the present invention shows a form having a magnet (M) that provides a fixing force to the main block and the auxiliary block.

The magnet (M) allows the auxiliary block to remain attached to the main block by magnetic force in the rigid state, and to maintain the rolled state by magnetic force when the variable rigidity structure is rolled in a triangular prism shape in the ductile state. perform the role

As shown, the main block and the auxiliary block are divided into 6 in the rolling direction, and the first block 41, the second block, the third block, the fourth block, and the fifth block sequentially from the narrowest block. , referred to as the 6th block, the fourth block 44 overlaps the outside of the first block 41, which is the starting part that is rolled in a rolled state, and the inside of the sixth block 46 that is the last part that is rolled up As a result, the third block 43 is overlapped.

Therefore, if the start block 41 and the end block 46 to be rolled can be fixed to the outer block 44 or the inner block 43 by magnetic force, the variable rigidity structure can more firmly maintain the rolled state. there will be

When the variable rigidity structure according to the first, second, and third embodiments described above is applied to the flexible display device, the flexible display panel may be attached to the surface to which the flexible sheet is attached.

This type of display device can be deformed from a flexible state of the variable rigidity structure to a form in which the display screen is rolled inward, and when the variable rigidity structure is converted to a rigid state, the display screen maintains its strength without being deformed in a flat state. .

9 is a perspective view showing a variable rigidity structure according to a fourth embodiment of the present invention, and FIG. 10 is a side view showing a deformation of the variable rigidity structure according to the fourth embodiment of the present invention.

A fourth embodiment of the present invention shows a variable rigidity structure that allows the display screen to be rolled outwardly.

The variable rigidity structure according to the fourth embodiment of the present invention is to be rolled into an octagonal column shape.

For this purpose, main blocks 61,62,63,64,65,66,67,68 and auxiliary blocks 61-1,62-1,63-1,64-1,65-1,66-1,67 -1,68-1,61-2,62-2,63-2,64-2,65-2,66-2,67-2,68-2) is equally divided into 8, auxiliary blocks (61-1,62-1,63-1,64-1,65-1,66-1,67-1,68-1,61-2,62-2,63-2,64-2,65 -2,66-2,67-2,68-2) are arranged on both sides of the main blocks 61,62,63,64,65,66,67,68.

Auxiliary block (61-1,62-1,63-1,64-1,65-1,66-1,67-1,68-1,61-2,62-2,63-2,64-2) ,65-2,66-2,67-2,68-2) is folded into the main block (61,62,63,64,65,66,67,68) and is in a rigid state, as shown Auxiliary block (61-1,62-1,63-1,64-1,65-1,66-1,67-1,68-1,61-2,62-2,63-2,64-2) ,65-2,66-2,67-2,68-2) is spread to both sides of the main block (61,62,63,64,65,66,67,68), the configuration in which the ductile state is the previous implementation same as example

In FIG. 10, the flexible sheet includes main blocks 61,62,63,64,65,66,67,68 and auxiliary blocks 61-1,62-1,63-1,64-1,65-1,66. -1,67-1,68-1,61-2,62-2,63-2,64-2,65-2,66-2,67-2,68-2) attached to the top surface Therefore, as shown in FIG. 10, the flexible sheet surface may be rolled up in a form facing outward.

In order for the flexible sheet to be rolled outwardly, the side surfaces of the main block and the auxiliary block must be inclined.

As in the illustrated embodiment, in order to be rolled up in the form of an octagonal column, both sides of one block should be formed to have an angle of 45 degrees to each other.

11 is a perspective view showing a variable rigidity structure according to a fifth embodiment of the present invention, and FIG. 12 is a side view showing a deformation of the variable rigidity structure according to a fifth embodiment of the present invention.

The variable rigidity structure according to the fifth embodiment of the present invention further includes a magnet (M) in the variable rigidity structure of the fourth embodiment.

In the magnet (M), some auxiliary blocks (62-1, 62-2, 67-1, 67-2) are partially formed by the magnet (M) in a state in which the auxiliary blocks are superimposed on the main block (62, 67). It is attached to the magnetic force so that it can be fixed.

In addition, when the auxiliary blocks 61-1 to 68-1 and 61-2 to 62-2 are rolled in an octagonal column shape in a flexible state spread on both sides of the main blocks 61 to 68, both sides ( By arranging the magnets (M) on the side of 61 and 68) so that the sides in contact with each other can be attached and fixed to each other by the magnetic force of the magnet (M), the variable rigidity structure can maintain a rolled state in the shape of an octagonal column. It is desirable to have

13 is a perspective view showing a flexible display device according to a sixth embodiment of the present invention, Figure 14 is a rear perspective view showing a flexible display device according to a sixth embodiment of the present invention, Figure 15 is a sixth embodiment of the present invention It is a side view showing a flexible display device according to an example.

As shown, the flexible display device according to the sixth embodiment of the present invention includes a display panel DP having flexibility, a flexible sheet 80 provided on a rear surface of the display panel DP, and the flexible sheet A rigid block 82 provided on the rear surface of the 80, magnets 84 provided on both sides of the rigid block 82, and a magnetic metal provided at both edges of the flexible sheet and attached to the magnet by magnetic force. It includes a control plate 86 which is a thin plate of material.

The rigid block 82 is divided into a plurality, and is disposed on the rear surface of the flexible sheet 80 with a spacing therebetween.

The control plate 86 is attached to the flexible sheet 80 and may be folded to overlap the front surface of the display panel DP or to overlap the side surface of the rigid block 82 .

16 is a perspective view showing a flexible state of a flexible display device according to a sixth embodiment of the present invention, FIG. 17 is a rear perspective view showing a flexible state of a flexible display device according to a sixth embodiment of the present invention, and FIG. 18 is It is a side view showing the flexible state of the flexible display device according to the sixth embodiment of the present invention.

In the flexible display device according to the sixth embodiment of the present invention, when the control plate 86 overlaps the front surface of the display panel DP, it is in a flexible state that can be bent.

In the flexible state, the control plate 86 is fixed to the display panel DP by the magnetic force of the magnet 84 provided in the rigid block 82 in a superimposed state.

The control plate 86 is a thin metal plate that can be bent and deformed, and in this state, the display device can be bent or deformed to be rolled up.

Figure 19 is a perspective view showing a rigid state of the flexible display device according to a sixth embodiment of the present invention, Figure 20 is a rear perspective view showing a rigid state of the flexible display device according to the sixth embodiment of the present invention, Figure 21 is It is a side view showing the rigid state of the flexible display device according to the sixth embodiment of the present invention.

The flexible display device according to the sixth embodiment of the present invention is in a rigid state when the adjustment plate 86 is erected to overlap the side surface of the rigid block 82 .

In the rigid state, the plate surface of the throttle 86 is in a direction perpendicular to the display panel DP, and the throttle 86 is shaped to connect the sides of the rigid blocks 82, so that the display panel DP is in a flat state. provides strength.

The rigid state is maintained by the throttle plate 86 being magnetically attached to the magnet 84 provided on the side surface of the rigid block 82 .

22 is a rear perspective view showing the flexible state of the flexible display device according to the seventh embodiment of the present invention, and FIG. 23 is a side view showing the flexible state of the flexible display device according to the seventh embodiment of the present invention.

In the flexible display device according to the seventh embodiment of the present invention, the angle of the throttle 96 with respect to the display panel DP is changed similarly to the sixth embodiment so that the flexible state and the rigid state are converted, and the marketability is further improved it was made

As shown, the flexible display device according to the seventh embodiment of the present invention has a display panel DP having flexibility, and an angle with respect to the display panel DP on the rear surface of the display panel DP is changed. It includes a control plate 94 connected so as to be connected, and a control unit 90 having a magnet on the side and adjusting an angle of the control plate 94 with respect to the display panel.

The control plate 94 may be made of a magnetic metal thin plate attached to a magnet as in the sixth embodiment.

The control unit 90 includes a magnet 94 that allows the control panel 94 to be fixed with magnetic force in an upright state, a protrusion 93 that pushes the control panel 94 to overlap the display panel, and the and an adjustment member 92 for adjusting the protrusion and accommodation of the protrusion 93 .

As illustrated, in the flexible state, the control panel 96 overlaps the display panel DP, and thus the display panel DP is bent or bent.

In the flexible state, the protrusion 93 protrudes to the outside to push the control plate 94 , and thus, the control plate 96 is not erected despite the magnetic force of the magnet 94 and remains in a lying state.

The control plate is attached to the flexible sheet 96 as shown in FIG. 23 and is connected to the side surface of the magnet 94 . The adjustment plate 96 may be connected to the side surface of the magnet 94 in a hinged structure instead of the flexible sheet 95 so as to change an angle.

In the case of the illustrated embodiment, a pair of adjusting units 90 is provided, the protrusions protrude or accommodated on both sides of the adjusting unit 90 , and the adjusting plate 96 is disposed along both edges of the adjusting unit 90 . it has been shown The arrangement number of the adjusting unit 90 or the arrangement number of the adjusting plate 96 may be increased as necessary.

24 is a rear perspective view showing the rigid state of the flexible display device according to the seventh embodiment of the present invention, and FIG. 25 is a side view showing the rigid state of the flexible display device according to the seventh embodiment of the present invention.

As shown, when the plate surface of the throttle 96 stands up with respect to the back surface of the display panel, it becomes a rigid state providing strength in a flat state.

The transition from the above-described flexible state to the rigid state may be performed through manipulation of the adjusting member 92 . When the adjustment member 92 is moved so that the projection 93 is accommodated inside the adjustment unit 90, the adjustment plate 96 is erected by the magnetic force of the magnet 94, and the erected adjustment plate 96 is a magnet ( 94) is attached to the side by magnetic force and fixed.

In the rigid state, since the side surface of the control plate 96 supports the rear surface of the display panel DP, the display panel DP is supported in a flat state.

26 to 29 are views for explaining the operation of the control unit of the flexible display device according to the seventh embodiment of the present invention.

26 and 27 show the inside of the adjusting part in the flexible state, and the protrusion 93 protrudes to the outside, and FIGS. 27 and 28 show the inside of the adjusting part in the rigid state, and the protrusion 93 is the adjusting part. It is stored inside.

Referring to FIG. 25 , the adjusting unit 90 is provided with a guide groove 91a for guiding the vertical movement of the adjusting member 92 in the housing 91 forming the exterior.

Referring to FIG. 26 , looking at the inside of the adjusting unit, the pair of protrusions 93 are connected to each other by a hinge, and the part connected by the hinge is connected to the adjusting member 92 on the outside again.

In addition, the upper block 91b is disposed above the pair of protrusions 93 , and the lower block 91c is disposed below the pair of protrusions 93 .

As shown in FIG. 26 , the upper block 91b has a pair of protrusions 93 folded in a V-shape when the adjusting member 92 moves upward, and the protrusions 93 are located inside the adjusting unit 90 . guide to storage.

As shown in FIG. 28 , in the lower block 91c , when the adjusting member 92 moves downward, a pair of protrusions spread out in a single shape, and the protrusions 93 protrude to the outside of the adjusting unit 90 . guide as much as possible.

In the above, although the embodiment of the present invention has been mainly described, various changes or modifications may be made at the level of those skilled in the art. Accordingly, it will be understood that such changes and modifications are included within the scope of the present invention without departing from the scope of the present invention.

100: variable rigidity structure
110: main block
120: auxiliary block
130: flexible sheet
41,42,43,44,45,46 : main block
41-1.42-1,43-1,44-1,45-1,46-1: auxiliary block
41-2.42-2,43-2,44-2,45-2,46-2: auxiliary block
M: magnet
61,62,63,64,65,66,67,68 : main block
61-1,62-1,63-1,64-1,65-1,66-1,67-1,68-1: auxiliary block
61-2,62-2,63-2,64-2,65-2,66-2,67-2,68-2 : auxiliary block
DP: display panel
80: flexible sheet
82: rigid block
84: magnet
86: throttle
90: control unit
92: adjusting member
93: turn
94: magnet
96: control panel

Claims (13)

A flexible sheet having flexibility,
a main block provided on one surface of the flexible sheet and divided into a plurality;
A variable rigidity structure including an auxiliary block connected to one or both sides of the main block by the flexible sheet so that the flexible sheet is folded and overlapped with the main block.
The method of claim 1,
The auxiliary block is a variable rigidity structure divided into a plurality of the same as the main block.
3. The method according to claim 1 or 2,
A variable rigidity structure having a magnet so that the overlapping portions of the main block and the auxiliary block can be attached to each other by magnetic force.
3. The method of claim 2,
The variable rigidity structure is divided so that it can be rolled in a polygonal column shape.
5. The method of claim 4,
In the variable rigidity structure, side surfaces of the main block and the auxiliary block are inclined so that the flexible sheet can be rolled in a polygonal column shape facing outward.
5. The method of claim 4,
When the variable rigidity structure is rolled up in a polygonal column shape, multiple layers are overlapped, and the variable rigidity structure having a magnet so that the main block or auxiliary block of the inner layer and the main block or auxiliary block of the outer layer can be attached by magnetic force.
5. The method of claim 4,
The variable rigidity structure is a variable rigidity structure having a magnet so that side surfaces of the main block or the auxiliary block in contact with each other can be attached with magnetic force in a state in which the variable rigidity structure is rolled up in the form of a polygonal column.
A flexible sheet having flexibility, a main block provided on one surface of the flexible sheet and divided into a plurality, is connected to one or both sides of the main block by the flexible sheet so that the flexible sheet is folded and overlapped with the main block A variable rigidity structure including an auxiliary block disposed to be able to; and
A flexible display device comprising a; a display panel laminated on the outer surface of the flexible sheet having a flexibility.
9. The method of claim 8,
The auxiliary block may be overlapped by being folded toward the front side of the display panel, and the area where the auxiliary block overlaps among the front surface of the display panel is a non-display area in which no image is displayed.
a flexible display panel;
a rigid block arranged in a plurality of divisions on the rear surface of the display panel;
magnets provided on both sides of the rigid block; and
A flexible display device comprising a; a control plate rotatably connected to the display panel and attached to a side surface of the magnet, or attached to overlap the front surface of the display panel, and made of a magnetic material attached to the magnet.
11. The method of claim 10,
The control plate is a flexible display device that is attached to the rear surface of the display panel using a flexible sheet, or connected to the rigid block by a hinge.
a flexible display panel;
a control unit provided on the rear surface of the display panel, having a magnet on the side, and a protrusion that protrudes or is received from the side; and
A flexible display device comprising a; a control plate rotatably connected to the side of the control unit and made of a magnetic material attached to the magnet of the control unit.
13. The method of claim 12,
The control panel is attached to the rear surface of the display panel using a flexible sheet, or a flexible display device connected to the control unit by a hinge.

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