KR102252322B1 - Rollable display device - Google Patents

Abstract

The disclosed rollable display device includes a display having first and second bodies, and an image display surface and a rear surface. A roller on which the display is wound is provided on the first body. As the first body is spaced apart from the second body, the display is released from the rollers, pulled out from the first body, and deployed in the longitudinal direction. The support member is in the form of a chain connected so that a plurality of segmental links can be rotated in an unfolded state around a hinge axis perpendicular to the image display surface and bent in one direction. The support member is accommodated in a storage unit provided in the first body, and is drawn out from the first body in the longitudinal direction as the first body is spaced apart from the second body to support the rear surface of the display.

Description

Rollable display device

Disclosed is a rollable display device having a structure in which a flexible display can be accommodated in a body or deployed outside a body.

Electronic devices such as televisions, monitors, communication terminals, game consoles, multimedia devices, portable computers, and photographing devices have displays for displaying image information. Since traditional displays cannot bend or fold, the size of the electronic device with the display depends on the size of the display. Therefore, when a large-area display is employed, the size of the electronic device must be increased accordingly.

As a flexible display capable of being bent in a round shape has been developed, a rollable display device has been proposed that can wind a display on a roller and unwind and unfold the display from the roller if necessary.

Meanwhile, in the rollable display device having such a structure, when a force in a direction perpendicular to the screen of the display deployed outside the body is applied, the display cannot be maintained in a flatly unfolded state, and an image displayed on the display may be distorted. Therefore, there is a need for a support structure for flatly supporting the display deployed outside the body.

It provides a rollable display device in which a support member for supporting a display and a display are separated and accommodated in a body.

It provides a rollable display device in which the display can be supported flatly in the deployed state.

A rollable display device according to an aspect includes: first and second bodies; A display having an image display surface and a rear surface; A roller supported by the first body so as to be rotated about a rotation axis in the width direction of the display, one end of the display in the longitudinal direction is fixed, and the display is wound around the outer circumference of the display; A plurality of segmental links are in the form of a chain connected so as to be rotated in an unfolded state and a curved state in one direction about a hinge axis perpendicular to the image display surface, and a support member accommodated in a receiving portion provided in the first body; and , The display is released from the rollers as the first body is spaced apart from the second body and is pulled out from the first body and deployed in the longitudinal direction, and the support member is the first body is spaced apart from the second body. Accordingly, it is drawn out from the first body in the longitudinal direction to support the rear surface of the display.

The receiving portion may extend in the width direction.

The rollable display device may further include a sprocket installed on the first body to be rotated about a rotation axis perpendicular to the image display surface to move the support member.

The sprocket changes the moving direction of the support member from the width direction to the longitudinal direction when the support member is withdrawn from the first body, and the support member moves when the support member is retracted into the first body. The direction can be changed from the longitudinal direction to the width direction.

The support member may support an edge of the display in the width direction.

The segmental link may be provided with a rib extending toward the image display surface beyond the edge.

The sprocket is positioned adjacent to the edge of the display, a plurality of connecting members having a first connecting portion are installed at the edge of the display, and a second connecting portion connected to the first connecting portion is provided in the plurality of segmental links. Can be.

When the moving direction of the plurality of segmental links is switched to the length direction and the width direction by the sprocket, the first connection part and the second connection part may be connected to each other or disconnected.

The first connection portion may have a protrusion shape extending in the width direction, and the second connection portion may have a groove shape into which the first connection portion is inserted.

The spacing between the plurality of connecting members may be the same as the spacing between the plurality of segmental links.

The distance between the plurality of connecting members may be a distance at which the plurality of connecting members are aligned in a radial direction of the roller at a plurality of positions in the circumferential direction of the roller when the display is wound around the roller.

The connecting member may be provided with a protruding portion and a concave portion, and a protruding portion of the connecting member positioned outside may be inserted into a concave portion of the connecting member positioned inside while aligned in the radial direction. The protrusion includes a resilient arm, and the concave portion accommodates the resilient arm, and includes a receiving portion having a width of the opening smaller than the width of the resilient arm, and a locking protrusion provided at an edge of the opening to catch the resilient arm. In the radially aligned state, the elastic arm of the connecting member positioned outside may be inserted into the receiving portion of the connecting member positioned inside.

The connecting member is provided with a first magnetic member and a second magnetic member, and the second magnetic member of the connecting member located inside and the first magnetic member of the connecting member located outside in a state aligned in the radial direction are magnetic force. Can be attached to each other by

The connecting member is provided with a first opposing portion and a second opposing portion, and at least one of the first and second opposing portions is provided with a friction portion, and a second of the connecting member positioned inside in a state aligned in the radial direction The opposing portion and the first opposing portion of the connecting member positioned on the outside may contact each other.

The connecting member is provided with a first opposing portion and a second opposing portion, and a slip preventing member is provided between the plurality of connecting members, and a second opposing portion of the connecting member positioned inside in a state aligned in the radial direction The first opposing portions of the connecting member positioned on the outside may contact each other.

The support member may include first and second support members supporting both edges of the display in the width direction.

The rotation directions of the plurality of segmental links of the first and second support members may be opposite to each other.

The sprocket includes first and second sprockets positioned adjacent to both edges in the width direction of the display, and a plurality of connecting members having first connecting portions are installed at both edges of the display, and the first , The plurality of segmental links of the second support member may be provided with a second connection part connected to the first connection part.

When the movement direction of the first and second support members is switched to the length direction and the width direction by the first and second sprockets, the first connection part and the second connection part may be connected to each other or disconnected. have.

The distance between the plurality of connecting members may be a distance at which the plurality of connecting members are aligned in a radial direction of the roller at a plurality of positions in the circumferential direction of the roller when the display is wound around the roller.

The support member includes first and second support members for supporting the rear surface of the display at positions spaced apart from each other in the width direction of the display, and the rotation direction of the plurality of segmental links of the first and second support members is They can be opposite to each other.

The rollable display device may further include a locking unit for locking the first body with respect to the second body at a plurality of spaced positions.

The locking unit may include a blocking member having a blocking position and an allowable position for blocking movement of the support member in the receiving direction accommodated in the first body.

In the blocking position, the blocking member may block the segmental link located in front of the segmental link bitten by the sprocket from moving in the receiving direction. When the support member is withdrawn from the first body, the blocking member interferes with the segmental link and may be switched from the blocking position to the allowable position. The locking unit may further include an elastic member for applying an elastic force in a direction in which the blocking member is converted to the blocking position.

The locking unit further includes a plurality of locking projections on which the sprocket is provided, wherein the blocking member is caught by the locking projection in the blocking position so that the sprocket is not rotated in a direction in which the support member moves in the receiving direction. Can be blocked to avoid. When the sprocket is rotated in a direction in which the support member is withdrawn from the first body, the blocking member may interfere with the locking projection and may be switched to the allowable position. The locking unit may further include an elastic member for applying an elastic force in a direction in which the blocking member is converted to the blocking position.

The other end of the display in the longitudinal direction may be fixed to the second body, and one end of the support member may be fixed to the second body.

The first body includes a pair of first bodies positioned on both sides of the second body in the longitudinal direction, and the rollers are provided on each of the pair of first bodies, and one end of the display and the other It includes a pair of rollers to which end portions are fixed, and the support member is installed across the pair of first bodies, and a part thereof may be fixed to the second body.

According to the above-described embodiments of the rollable display device, the display and the support member may be separated and accommodated in the body. In addition, it is possible to stably and flatly support the display deployed outside the body.

1 is a front view of a rollable display device in an open state according to an exemplary embodiment of the present invention.
2 is a front perspective view of an embodiment of the rollable display device shown in FIG. 1.
3 is a rear view of the rollable display device shown in FIG. 1 according to an embodiment.
4 is a rear perspective view of an embodiment of the rollable display device shown in FIG. 1.
5 is a front view of the rollable display device shown in FIG. 1 in a closed state.
6 is a front perspective view of the rollable display device shown in FIG. 1 in a closed state.
7 is a rear perspective view of the rollable display device shown in FIG. 1 in a closed state
8 is a perspective view showing an open state as an embodiment of a structure for accommodating a display in a first body.
9 is a perspective view illustrating a partially opened state as an embodiment of a structure for accommodating a display in a first body.
10 is an internal perspective view of a structure in which the display is accommodated in a first body, in a closed state.
11 is an exploded perspective view of an embodiment of a rollable display device in which an embodiment of a support unit is employed.
12 is a front view of the rollable display device shown in FIG. 11 according to an exemplary embodiment, showing a partially opened state.
13 is a front view of the rollable display device illustrated in FIG. 11 according to an exemplary embodiment, and shows an open state.
14 is a front view of the rollable display device illustrated in FIG. 11 according to an exemplary embodiment, showing a closed state.
15 is a view showing a process in which the first and second support members are withdrawn from the first body
16 and 17 are front views of the first and second support members according to an embodiment.
FIG. 18 is a plan view of the rollable display device shown in FIG. 11 according to an exemplary embodiment, showing an open state.
19 is an exploded perspective view showing an embodiment of a connection structure.
20 is a rear perspective view of an embodiment of the connection structure shown in FIG. 19.
21 is a cross-sectional view taken along line C-C' of FIG. 20.
22 is a diagram conceptually showing a process in which the connecting member and the support unit are connected.
23A is a perspective view showing a state in which the display is wound around a roller.
23B to 23H are schematic cross-sectional views showing examples of shapes of protrusions and concave portions.
23I is a schematic cross-sectional view of an embodiment of an anti-slip structure using magnetic force.
23J is a schematic cross-sectional view of an embodiment of an anti-slip structure using frictional force.
23K is a schematic plan view of an embodiment of an anti-slip structure using frictional force.
23L is a schematic plan view of an embodiment of an anti-slip structure using a zipper-lock structure.
24 is a perspective view of a rollable display device according to an embodiment.
25A is a front view of one embodiment of a locking unit.
25B is a front view of an embodiment of a locking unit.
26 is a schematic plan view of an embodiment of a rollable display device.
27 is a rear view of an embodiment of a rollable display device.
28 is an exploded perspective view showing an embodiment of a structure in which a roller is supported so that it can be rotated on a first body.
FIG. 29 is a cross-sectional view taken along line EE′ of FIG. 28.
30 is a perspective view showing an example of a connection structure between a rotation support member and a sprocket.
FIG. 31 is a graph showing the relationship between the development distance of the display, the rotation amount of the roller, and the rotation amount of the rotation support member.
32 is a partial perspective view of an embodiment of a rollable display device.
33 is a cross-sectional view taken along line GG' of FIG. 32.
34 is a schematic plan view of an embodiment of a rollable display device.
35 is a schematic plan view of an embodiment of a rollable display device.

Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. However, this is not intended to limit the techniques described in this document to specific embodiments, and should be understood to include various modifications, equivalents, and/or alternatives of the embodiments of this document. . In connection with the description of the drawings, similar reference numerals may be used for similar elements.

In this document, expressions such as "have," "may have," "include," or "may contain" are the presence of corresponding features (eg, elements such as numbers, functions, actions, or parts). And does not exclude the presence of additional features.

In this document, expressions such as "A or B," "at least one of A or/and B," or "one or more of A or/and B" may include all possible combinations of the items listed together. . For example, "A or B," "at least one of A and B," or "at least one of A or B" includes (1) at least one A, (2) at least one B, Or (3) it may refer to all cases including both at least one A and at least one B.

Expressions such as "first," "second," "first," or "second," used in this document can modify various elements regardless of their order and/or importance, and It is used to distinguish it from other components and does not limit the components. For example, a first user device and a second user device may represent different user devices regardless of order or importance. For example, without departing from the scope of the rights described in this document, a first component may be referred to as a second component, and similarly, a second component may be renamed to a first component.

Some component (eg, the first component) is “(functionally or communicatively) coupled with/to)” to another component (eg, the second component) or “ When referred to as "connected to", it should be understood that the certain component may be directly connected to the other component or may be connected through another component (eg, a third component). On the other hand, when a component (eg, a first component) is referred to as being “directly connected” or “directly connected” to another component (eg, a second component), the component and the It may be understood that no other component (eg, a third component) exists between the different components.

The expression "configured to" as used in this document is, for example, "suitable for," "having the capacity to" depending on the situation. ," "designed to," "adapted to," "made to," or "capable of." The term "configured to (or set)" may not necessarily mean only "specifically designed to" in hardware. Instead, in some situations, the expression "a device configured to" may mean that the device "can" along with other devices or parts. For example, the phrase “a processor configured (or configured) to perform A, B, and C” means a dedicated processor (eg, an embedded processor) for performing the operation, or by executing one or more software programs stored in a memory device. , May mean a generic-purpose processor (eg, a CPU or an application processor) capable of performing corresponding operations.

Terms used in this document are only used to describe a specific embodiment, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the technical field described in this document. Among terms used in this document, terms defined in a general dictionary may be interpreted as having the same or similar meanings as those in the context of the related technology, and unless explicitly defined in this document, they have ideal or excessively formal meanings. Is not interpreted as. In some cases, even terms defined in this document cannot be interpreted to exclude embodiments of this document.

The rollable display device of this document is, for example, a TV, a smartphone, a tablet PC, a mobile phone, a video phone, an e-book reader, and a desktop PC. (desktop personal computer), a laptop PC (laptop personal computer), it may be a netbook computer (netbook computer).

In this document, the term user may refer to a person who uses the rollable display device.

1 to 4 are front views of a rollable display device according to an embodiment of the present invention in an open state, a front perspective view in an open state, a rear view in an open state, and a rear perspective view in an open state, respectively. 5 to 7 are front, front and rear perspective views, respectively, of a rollable display device according to an embodiment of the present invention in a closed state.

1 to 7, the rollable display device includes a pair of first bodies 101 and 201 and a second body 401. The first body 101 and 201 are located on both sides of the second body 401. The second body 401 may include a stand 501. The second body 401 may be fixed to the stand 501 and may be integral with the stand 501.

As shown in FIGS. 5 to 7, when the first body 101 and 201 is fully approached to the second body 401, that is, in a closed state, the display 301 is the first body 101 and 201 ) Is housed inside. In the closed state, the first body 101 and 201 and the second body 401 are positioned adjacent to each other, and the display 301 may not be exposed to the outside. In the closed state, the widths of the first body 101 and 201 and the second body 401 may be the same as the width of the stand 501. In the closed state, the rollable display device occupies a minimum space.

1 to 4, when the first body 101, 201 is spaced apart from the second body 401, that is, in an open state, the display 301 is the first body 101, 201 It is withdrawn from and is deployed between the first body 101 and 201. The open state includes a state in which the display 301 is fully deployed and a state in which the display 301 is partially deployed.

The rollable display device may be a television, a monitor, a communication terminal, a game machine, a multimedia device, a portable computer, a photographing device, and the like. In addition, the rollable display device may be any device having a structure in which the first body 101 and 201 in which the display 301 is accommodated and the second body 401 can be approached/separated from each other.

The display 301 may have a structure that can be flexibly bent and accommodated in the first bodies 101 and 201, for example, a structure that can be wound around a roller, and the structure is not particularly limited. For example, the rollable display 3 is a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic light-emitting diode (OLED) display, It may be an electrophoretic display or the like.

In the closed state, the display 301 is housed in a rolled state inside the first body 101 and 201, and as the first body 101 and 201 move away from the second body 401, the first body ( 101) can be withdrawn from 201.

8 to 10 are perspective views showing an embodiment of a structure for accommodating the display 301 in the first body 101 and 201, in which FIG. 8 is an open state, FIG. 9 is a partially open state, and FIG. 10 is a closed state. Show the status. 8 to 10, the first body 101 and 201 are shown in a state in which a part of the housing is omitted so that the inside is visible.

8 to 10, rollers 103 and 203 are installed on the first body 101 and 201, respectively. The rollers 103 and 203 are extended in the width direction A2 of the display 301, and the rotation shafts 103a and 203a in the width direction A2 on the first and second bodies 101 and 201 It is supported so that it can be rotated around. One end of the display 301 in the longitudinal direction A1 is connected to the roller 103 and the other end is connected to the roller 203. The display 301 is wound around the outer periphery of the rollers 103 and 203. In the closed state, as shown in FIG. 10, the display 301 is accommodated in the first body 101 and 201 while being wound around the rollers 103 and 203.

In the state shown in FIG. 10, when the first body 101 and 201 is moved in the longitudinal direction A1 of the display 301 and away from the second body 401, a tensile force is applied to the display 301. As a result, the rollers 103 and 203 are rotated in the direction in which the display 301 is released, as indicated by reference numerals 191 and 291 in FIG. 9, and the display 301 is withdrawn from the first body 101 and 201. It is deployed between the first bodies 101 and 201 across the second body 401. When the first bodies 101 and 201 reach the open state, the display 301 is in the maximum deployed state as shown in FIG. 8.

When the first body 101 and 201 approaches the second body 401 in the open state, the rollers 103 and 203 rotate in the direction of winding the display 301, as shown in FIG. Likewise, the display 301 is wound around the rollers 103 and 203 and accommodated in the first body 101 and 201. An elastic force may be applied to the rollers 103 and 203 to rotate in a direction in which the display 301 is wound by an elastic member, for example, a torsion spring, not shown. The structure in which the rollers 103 and 203 wind up the display 301 is not particularly limited. An embodiment of a structure in which the rollers 103 and 203 wind up the display 301 will be described later with reference to FIGS. 28 to 30.

The display 301 drawn out of the first body 101 and 201 needs to be maintained in a flat state. When an external force is applied to the display 301 in a direction perpendicular to the image display surface 301-1 in the unfolded state, the image displayed on the display 301 is distorted because the display 301 cannot be maintained in a flatly unfolded state. Can be.

1 to 7, the rollable display device includes a support unit 6 that flatly supports the display 301. For example, the support unit 6 may be accommodated in the first body 101 and 201 in the closed state, and may be withdrawn from the first body 101 and 201 in the open state to support the display 301 . The support unit 6 may support the rear surface 301-2 of the display 301, that is, the opposite surface of the image display surface 301-1. As an embodiment, the support unit 6 may support at least one of the edges 301a and 301b on both sides of the display 301 in the width direction A2. The support unit 6 of the present embodiment may include first and second support members 6-1 and 6-2 respectively supporting the edges 301a and 301b of the display 301.

5 to 7, in the closed state, the first and second support members 6-1 and 6-2 are accommodated in the first body 101 and 201. When the first body 101 and 201 is away from the second body 401, as shown in Figs. 1 to 4, the first and second support members 6-1 and 6-2 are displayed. It is drawn out from the first body 101 and 201 together with the 301 and is positioned on the rear surface 301-2 of the display 301, and supports the edges 301a and 301b, respectively.

Hereinafter, an embodiment of the support unit 6 will be described. 11 is an exploded perspective view of an embodiment of a rollable display device in which an embodiment of the support unit 6 is employed. 12 is a front view of the embodiment of the rollable display device shown in FIG. 11, showing a partially open state. 13 is a front view of the rollable display device shown in FIG. 11 according to an embodiment, showing an open state. 14 is a front view of an embodiment of the rollable display device shown in FIG. 11, showing a closed state. 11 to 14, the first body 101, 201 is shown in a state in which a part of the housing is omitted so that the inside is visible.

11 to 14, the support unit 6 includes first and second support members 6-1 and 6-2 respectively supporting the edges 301a and 301b of the display 301. do. The first and second support members 6-1 and 6-2 are in the form of a chain connected so that a plurality of segmental links 601 can be rotated with each other. The first support member 6-1 includes a pair of first chains 603 and 623 respectively accommodated in the first bodies 101 and 201. The second support unit 6-2 includes a pair of second chains 605 and 625 respectively accommodated in the first body 101 and 201. Each of the pair of first chains 603 and 623 and the pair of second chains 605 and 625 is in the form of a chain connected so that a plurality of segmental links 601 can rotate with each other. The leading links 603a and 605a located on the side of the second body 401 among the segmental links 601 of the pair of first chains 603 and 623 and the pair of second chains 605 and 625 (623a) (625a) is connected to the second body (401). Each of the first and second supporting members 6-1 and 6-2 has one or more segmental links positioned at the center, for example segmental links 603a, 605a, 623a, 625a, and a second body ( It may be in the form of a single chain fixed to 401). Embodiments of the first and second support members 6-1 and 6-2 will be described later with reference to FIGS. 16 and 17.

Each of the first bodies 101 and 201 is provided with first and second storage portions in which the first and second supporting members 6-1 and 6-2 are accommodated. For example, the first body 101 is provided with first and second storage portions 151 and 152 in which first and second chains 603 and 605 are respectively accommodated. The first and second storage units 151 and 152 may have a groove shape extending in the width direction A2 of the display 301, for example. The first and second storage portions 151 and 152 are positioned to be spaced apart from each other in the longitudinal direction A1. Likewise, the first body 201 is provided with first and second receiving portions 251 and 252 in which the first and second chains 623 and 625 are respectively accommodated. The first and second storage units 251 and 252 may have a groove shape extending in the width direction A2 of the display 301, for example. The second storage portions 251 and 252 are positioned to be spaced apart from each other in the longitudinal direction A1.

First and second sprockets may be provided on the first body 101 and 201 to insert/withdraw the first and second support members 6-1 and 6-2. The first and second sprockets are positioned adjacent to the edges 301a and 301b of the display 301. For example, the first body 101 is provided with first and second sprockets 195 and 196 for transporting the first and second chains 603 and 605, respectively. The first and second chains 603 and 605 are transferred in the width direction A2 within the first body 101 by the first and second sprockets 195 and 196, and the first body 101 From the outside, it is conveyed in the longitudinal direction (A1). That is, the transfer direction of the first and second chains 603 and 605 is switched by the first and second sprockets 195 and 196. To this end, the first and second sprockets 195 and 196 are supported by the first body 101 so that they can be rotated around a rotation axis 195a and 196a perpendicular to the image display surface 301-1. . That is, the rotation shafts 195a and 196a are orthogonal to the longitudinal direction A1 and the width direction A2. The first and second sprockets 195 and 196 are disposed to be spaced apart by an interval 187 in the longitudinal direction A1 so as to correspond to the first and second storage portions 151 and 152, respectively. Accordingly, the first and second chains 603 and 605 may be accommodated in the first body 101 so as to be shifted in the longitudinal direction A1. Since the first and second chains 603 and 605 do not interfere with each other, the length in the width direction A2 of the first body 101 for accommodating the first and second chains 603 and 605 is minimized. can do.

Similarly, the first body 201 is provided with first and second sprockets 295 and 296 for transporting the first and second chains 623 and 625, respectively. The first and second chains 623 and 625 are transferred in the width direction A2 within the first body 201 by the first and second sprockets 295 and 296, and the first body 201 From the outside, it is conveyed in the longitudinal direction (A1). That is, the transfer direction of the second chains 623 and 625 is switched by the first and second sprockets 295 and 296. To this end, the first and second sprockets 295 and 296 are supported by the first body 201 so that they can be rotated around a rotation axis 295a and 296a perpendicular to the image display surface 301-1. . That is, the rotation shafts 295a and 296a are orthogonal to the longitudinal direction A1 and the width direction A2. The first and second sprockets 295 and 296 are disposed to be spaced apart by an interval 287 in the longitudinal direction A1 so as to correspond to the first and second storage portions 251 and 252, respectively. Accordingly, the first and second chains 623 and 625 may be accommodated in the first body 201 so as to be shifted in the longitudinal direction A1. Since the first and second chains 623 and 625 do not interfere with each other, the length in the width direction A2 of the first body 201 for accommodating the first and second chains 623 and 625 is minimized. can do.

The sprockets 195, 196, 295, and 296 may have a polygonal shape, for example. The length of one side of the polygon may be determined in consideration of the length of the segment link 601. For example, the length of one side of the polygon may be determined in consideration of the spacing between the hinge axes (FIG. 16: 653) of two adjacent segmental links 601. In the present embodiment, sprockets 195, 196, 295, and 296 having a square shape are employed, but the scope of the present invention is not limited thereto.

In the open state, the first and second support members 6-1 and 6-2 are the first and second storage units 151 provided inside the first body 101 and 102 as shown in FIG. 14. It is housed in (152) (251) (252). In this state, when the first body 101 and 201 are separated from the second body 401, the first and second support members 6-1 and 6-2 are It is drawn out from and is deployed between the first body 101 (201) and the second body (401). 15 is a view showing a process in which the first and second support members 6-1 and 6-2 are withdrawn from the first body 101 and 201. Referring to step 1211 of FIG. 15, when the first body 101 and 201 are separated from the second body 401 in the longitudinal direction A1, the leading links 603a, 605a, 623a, and 625a are Since it is connected to the second body 401, tension in the longitudinal direction A1 is applied to the first and second support members 6-1 and 6-2. Then, the first and second support members 6-1 and 6-2 start to be pulled out from the first body 101 and 201. As the first and second support members 6-1 and 6-2 are withdrawn from the first body 101 and 201, the sprockets 195, 196, 295, and 296 are performed in step 1212 of FIG. , 1213 and 1214, the first and second support members 6-1 and 6-2 are rotated in a direction allowing the withdrawal of the first and second support members 6-1 and 6-2. The first and second supporting members 6-1 and 6-2 moving in the width direction A2 inside the first body 101 and 201 are attached to the sprockets 195, 196, 295 and 296. As a result, the moving direction is switched to the longitudinal direction A1 and is drawn out of the first body 101 and 201 as shown in FIG. 12. Accordingly, the first body 101 and 201 may be spaced apart from the second body 401. When the open state is reached, as shown in FIG. 13, the first and second support members 6-1_) 6-2 extend in the longitudinal direction A1 and expand between the first bodies 101 and 201. Each of the edges 301a and 301b of the displayed display 301 is supported.

The first and second support members 6-1 and 6-2 are in the form of a chain connected so that a plurality of segmental links 601 can rotate with each other, but their rotation range is limited. That is, the rotation is not limited in the direction of winding the sprockets 195, 196, 295, and 296, but when it is in an unfolded state, it is no longer rotated in that state.

16 and 17 are front views showing one embodiment of the first and second support members 6-1 and 6-2, respectively. Referring to FIG. 16, the first support member 6-1 is in the form of a chain connected to each other so that the segmental links 601 adjacent to each other can be rotated about the hinge axis 653. The hinge axis 653 is an axis perpendicular to the image display surface 301-1. That is, the hinge shaft 653 is an axis in a direction orthogonal to the longitudinal direction A1 and the width direction A2. Accordingly, the first support member 6-1 has a chain shape that can be bent in a plane including the display 301. The plurality of segmental links 601 are connected so that they can be rotated in an unfolded state and a bent state in one direction. The rotation of the first support member 6-1 in the unfolding direction 658 is limited. To this end, the segment link 601 is provided with a stopper 601a for limiting rotation. When the plurality of segmental links 601 are unfolded, the stoppers 601a adjacent to each other come into contact with each other, so that the rotation in the unfolding direction 658 is limited. Accordingly, as shown in FIG. 1, the edge 301a of the display 301 drawn out of the first body 101 and 201 may be supported by the first support member 6-1. The center 655 of the hinge axis 653 is deviated from the center 654 of the segment link 601 by a distance 656 in a direction 658 that is unfolded. Accordingly, the first support member 6-1 can be easily bent in the direction 657, and the rotation in the direction 658 is limited and can be stably maintained in an unfolded state.

Referring to FIG. 17, the second support member 6-2 is arranged so that the segmental links 601 adjacent to each other can be rotated about a hinge axis 653 perpendicular to the image display surface 301-1. It is in the form of a connected chain. Accordingly, the second support member 6-2 has a chain shape that can be bent in a plane including the display 301. The plurality of segmental links 601 are connected so that they can be rotated in an unfolded state and a bent state in one direction. Rotation of the second support member 6-2 in the unfolding direction 657 is limited. To this end, the segment link 601 is provided with a stopper 601a for limiting rotation. When the plurality of segmental links 601 are unfolded, the stoppers 601a adjacent to each other come into contact with each other, so that the rotation in the unfolding direction 657 is limited. Accordingly, as shown in FIG. 1, the edge 302a of the display 301 drawn out of the first body 101 and 201 may be supported by the second support member 6-2. The center 655 of the hinge axis 653 is deviated from the center 654 of the segment link 601 by a distance 656 in the unfolding direction 657. Accordingly, the second support member 6-2 can be easily bent in the bending direction 658, and the rotation in the unfolding direction 657 can be limited and stably maintained in the unfolded state.

When the first body 101, 201 is approached toward the second body 401 in the open state shown in FIG. 13, the longitudinal direction ( The compressive force of A1) is applied. Then, the first and second support members 6-1 and 6-2 are pushed toward the first body 101 and 201. The sprockets 195, 196, 295, and 296 are pushed by the first and second supporting members 6-1 and 6-2 and rotated in a direction allowing insertion. The movement direction of the first and second support members 6-1 and 6-2 by the sprockets 195, 196, 295, and 296 is switched from the longitudinal direction (A1) to the width direction (A2). , The first and second support members 6-1 and 6-2 start to be accommodated in the receiving portions 151, 152, 251, and 252. When the closed state is reached, the first and second supporting members 6-1 and 6-2 are completely accommodated in the first body 101 and 201 as shown in FIG. 14. As described above, the display 301 is wound around the rollers 103 and 203 and accommodated in the first body 101 and 201.

According to the above-described configuration, the edges 301a and 301b of the display 301 drawn out of the first body 101 and 201 are the first and second supporting members 6-1 and 6-2. By being supported by, the display 301 may be kept flat in an open state.

In the case of a structure in which the support member is wound around the roller together with the display, the diameter of the roller including the display and the support member increases, so that the first bodies 101 and 201 may increase. According to this embodiment, since the first and second support members 6-1 and 6-2 are separated from the display 301 and accommodated in the first body 101 and 201, the support member is provided with the display. Compared to the structure wound around the roller, the size of the first bodies 101 and 201 can be reduced.

Further, in the case of a structure in which the support member is wound on a roller together with the display, the rotation axis of the segmental link forming the support member becomes the width direction of the display. The support member of this structure is very weak against external force in a direction perpendicular to the image display surface of the display. According to this embodiment, the hinge axes 653 of the plurality of segmental links 601 forming the first and second support members 6-1 and 6-2 are perpendicular to the image display surface 301-1. Therefore, the first and second support members 6-1 and 6-2 have strong resistance against external force applied to the display 301 in a direction perpendicular to the image display surface 301-1. Accordingly, the display 301 can be stably maintained in a flat state.

The rotation directions of the segmental links 601 of the first and second support members 6-1 and 6-2 are opposite to each other. Accordingly, in a state in which the first and second support members 6-1 and 6-2 are drawn out of the first body 101 and 201, rotation in both directions around the hinge shaft 653 is prevented. 1, Since it is limited by the second support members 6-1 and 6-2, the display 301 can be maintained in a stably unfolded state.

FIG. 18 is a plan view of the rollable display device shown in FIG. 11 according to an exemplary embodiment, showing an open state. Referring to FIG. 18, in order to keep the display 301 flat, the display 301 needs to be kept in contact with the first and second support members 6-1 and 6-2. When the display 301 is lifted from the first and second support members 6-1 and 6-2, it is difficult to keep the display 301 flat. To this end, a connection structure for connecting the display 301 to the support unit 6 so as not to be lifted may be employed in the rollable display device.

19 is an exploded perspective view showing an embodiment of a connection structure. 20 is a rear perspective view of an embodiment of the connection structure shown in FIG. 19. FIG. 21 is a cross-sectional view taken along line C-C' of FIG. 20. 22 is a diagram conceptually showing a process in which the connecting member and the support unit 6 are connected. 23A is a perspective view showing a state in which the display 301 is wound around the rollers 103 and 203. 19 to 23A illustrate a connection structure between the first support member 6-1 and the display 301, but the connection structure between the second support member 6-2 and the display 301 is the same. Accordingly, reference numerals for describing the connection structure between the second support member 6-2 and the display 301 in FIGS. 19 to 23A are indicated in parentheses.

19 to 23A, a plurality of connecting members 701 are coupled to the edges 301a and 301b of the display 301. The connecting member 701 may be in the form of a clip, for example. The pitch between the plurality of connecting members 701 disposed along the edges 301a and 301b of the display 301 may or may not be constant. As an example, the pitch between the plurality of connecting members 701 may be the same as the distance between the plurality of segment links 601. As another example, the distance between the plurality of connecting members 701 may be larger as the distance is closer to the second body 401, and the distance between the plurality of connection members 701 may be smaller as it is closer to the rollers 103 and 203. When the display 301 is wound around the rollers 103 and 203 a lot, the length of the display 301 wound once on the rollers 103 and 203 is less than the display 301 wound around the rollers 103 and 203. It is longer than the length of the display 301 that is wound once on the rollers 103 and 203 at the time. In view of this, the distance between the plurality of connecting members 701 is determined by the plurality of connecting members 701 in the circumferential direction and in the radial direction at a plurality of positions when the display 301 is wound around the rollers 103 and 203. It can be determined to be aligned. In other words, when the display 301 is wound around the rollers 103 and 203, as shown in Fig. 23A, a plurality of connecting members 701 are positioned on the same line in the radial direction at a plurality of positions in the circumferential direction. According to this configuration, when the display 301 is wound around the rollers 103 and 203, the image display surface 301-1 and the rear surface 301-2 are spaced apart from each other at intervals. Therefore, when the display 301 is wound around the rollers 103, 203 or unwound from the rollers 103, 203, the image display surface ( 301-1) can reduce the risk of being damaged.

Referring to FIG. 23A, the connecting member 701 may include a protruding portion 701c and a concave portion 701d formed to be concave on the opposite side of the protruding portion 701c. When the plurality of connecting members 701 are located on the same line in the radial direction at a plurality of positions in the circumferential direction, the protrusion 701c of the connecting member 701-1 located outside in the radial direction is located inside the connecting member It can be inserted into the concave portion 701d of (701-2). Accordingly, the connecting member 701-1 and the connecting member 701-2 can be aligned in the radial direction without shifting in the longitudinal direction A1 of the display 301. Accordingly, the plurality of connecting members 701 can be stably aligned in the radial direction.

Referring to FIG. 21, the connection member 701 includes a fixing part 701a to which the edges 301a and 301b of the display 301 are fixed, and a first connection part 701b stepped from the fixing part 701a. do. The first connecting portion 701b is connected to the second connecting portion 601b provided in the segmental link 601 constituting the first and second supporting members 6-1 and 6-2. For example, the first connection part 701b may have a protrusion shape, and the second connection part 601b may have an insertion groove shape into which the first connection part 701b is inserted, or vice versa. The insertion groove may be cut in the longitudinal direction (A1). Even if the spacing between the plurality of connecting members 701 is not constant, the first connecting portion 701b can be easily connected to the second connecting portion 601b. With this configuration, the first connection part 701b is connected to the second connection part 601b, so that the display 301 is not spaced apart from the first and second support members 6-1 and 6-2. It is supported so that the display 301 can be kept flat.

The left side drawing 1001 of FIG. 22 is a schematic plan view of FIG. 20, that is, the rollers 103 and 203 and the first and second supporting members 6-1 and 6-2 are connected to the rollers 103 and 203. It is a view seen from the direction of the rotational shafts 103a and 203a. The right side view 1003 of FIG. 22 is a schematic rear view of FIG. 20, that is, the rollers 103 and 203 and the first and second supporting members 6-1 and 6-2 are sprockets 195 and 196. ) It is a view as seen from the direction of the rotation shafts 195a, 196a, 295a, and 296a of 295 and 296. 20 to 22, a process in which the connecting member 701 and the segmental link 601 are connected to each other when the display 301 is released from the rollers 103 and 203 will be described.

As described above, the rotational shafts 195a, 196a, 295a, 296a of the sprockets 195, 196, 295, 296 are orthogonal to the rotational shafts 103a, 203a of the rollers 103 and 203. do. The first and second support members 6-1 and 6-2 are moved in the width direction A2 inside the first body 101 and 201, and the sprockets 195, 196, 295 and 296 ), the moving direction is converted to the longitudinal direction (A1). Accordingly, the segmental link 601 passing through the sprockets 195, 196, 295, and 296 is moved in the longitudinal direction A1 in parallel with the display 301. Conceptually, the rollers 103, 203 and the sprockets 195, 196, 295, and 296 are engaged in the form of a bevel gear, and the display 301 and the first and second support members 6-1 and 6 Connect -2) to each other.

In FIG. 22, when the first body 101 and 201 is away from the second body 401, the display 301 is moved in the first direction A1 while being released from the rollers 103 and 203. At this time, the first and second support members 6-1 and 6-2 are moved in the width direction A2, and then the moving direction is changed in the longitudinal direction A1 by the sprockets 195, 196, 295, and 296. ). While the direction of movement is switched, that is, while the segmental link 601 is rotated by engaging the sprockets 195, 196, 295, 296, the distance between the segmental link 601 and the display 301 is shown in the left diagram 1001. ), as indicated by reference numerals 1013, 1014, and 1015, gradually decreases. Similarly, the distance between the edges 301a and 301b of the display 301 and the segmental link 601 also gradually decreases as indicated by reference numerals 1021, 1022, and 1023 in the right drawing 1003. While the segmental link 601 is engaged with the first and second sprockets 195, 196, 295, and 296, the moving direction thereof is switched and while approaching toward the display 301, as shown in FIGS. Likewise, the first connecting portion 701b of the connecting member 701 is sequentially connected to the second connecting portion 601b of the plurality of segmented links 601, and the display 301 and the segmented link 601 are connected to the first body 101 ) (201) is withdrawn to the outside. With this configuration, the display 301 is stably supported without being spaced apart from the first and second support members 6-1 and 6-2, and is developed outside the first body 101 and 201. The display 301 may be kept flat.

When the first body 101, 201 approaches the second body 401, the segmental link 601 is engaged with the sprockets 195, 196, 295, and 296 so that the moving direction thereof is in the longitudinal direction (A1). ) To the width direction (A2). In this process, the segmental link 601 gradually moves away from the edges 301a and 301b of the display 301, and the first connector 701b is spaced apart from the second connector 601b. The display 301 is wound around the rollers 103 and 203 and accommodated in the first body 101 and 201, and the first and second support members 6-1 and 6-2 are provided with a storage unit 151 ) (152, 251, 252).

It is a structure to prevent slip in the longitudinal direction (A1) of the connecting members (701-1 and 701-2) located on the outside and inside in the radial direction and align them in the radial direction. 701c) and the concave portion 701d corresponding thereto and having one side open in the width direction A2 are employed, but the shapes of the protruding portion 701c and the concave portion 701d are not limited to the shape shown in FIG. 23A. 23B to 23H show various shapes of the protruding portion 701c and the concave portion 701d.

Referring to FIG. 23B, the protruding portion 701c and the concave portion 70-1d may have a partial ball shape and a concave shape closed in the longitudinal direction A1 and the width direction A2, respectively. Referring to FIG. 23C, the protrusion 701c and the concave portion 70-1d may have a pointed shape (conical or pyramidal shape) and a concave shape closed in the longitudinal direction A1 and the width direction A2, respectively. 23D, the protrusion 701c has a rectangular parallelepiped shape, and the concave portion 70-1d has a concave shape closed in the longitudinal direction A1 and the width direction A2. 23E and 23F, the protrusion 701c has a rectangular parallelepiped shape, and the concave portion 70-1d has a concave shape that is closed in the length direction A1 and one side is opened in the width direction A2. 23G and 23H, the protrusion 701c has a pointed shape (conical or pyramidal shape), and the concave portion 70-1d is a concave shape that is closed in the longitudinal direction (A1) and one side is opened in the width direction (A2). to be.

As a structure for aligning the connecting members 701-1 and 701-2 in the radial direction by preventing slipping in the longitudinal direction A1, magnetic force may be used. 23I is a schematic cross-sectional view of an embodiment of an anti-slip structure using magnetic force. Referring to FIG. 23I, the connection member 701 includes a first magnetic member 701e and a second magnetic member 701f positioned opposite the first magnetic member 701e. The first magnetic member 701e and the second magnetic member 701f have opposite polarities. When the plurality of connecting members 701 are located on the same line in the radial direction at a plurality of positions in the circumferential direction, the first magnetic member 701e of the connecting member 701-1 located radially outward is located in the inner side. It is attached to the second magnetic member 701f of the connected member 701-2 by magnetic force. Accordingly, the connecting member 701-1 and the connecting member 701-2 can be aligned in the radial direction without shifting in the longitudinal direction A1 of the display 301. Accordingly, the plurality of connecting members 701 can be stably aligned in the radial direction. The first magnetic member 701e and the second magnetic member 701f may have a protruding shape and a concave shape as shown in FIGS. 23A to 23H.

As a structure for aligning the connecting members 701-1 and 701-2 in the radial direction by preventing slip in the longitudinal direction A1, frictional force may be used. 23J is a schematic cross-sectional view of an embodiment of an anti-slip structure using frictional force. Referring to FIG. 23J, the connection member 701 includes a first opposing portion 701h positioned on the image display surface 301-1 and a second opposing portion 701i positioned on the opposite side thereof. At least one of the first and second opposing portions 701h and 701i includes a friction portion 701j with enhanced frictional force. The friction part 701j, for example, attaches a friction member made of an elastomer with high friction to the connection member 701, coats a material with high friction, or imparts surface roughness to the connection member 701 It can be implemented by doing. When the plurality of connecting members 701 are located on the same line in the radial direction at a plurality of positions in the circumferential direction, the first opposing portion 701h of the connecting member 701-1 positioned outside in the radial direction is located inside The second opposing portion 701i of the connected member 701-2 is contacted. At least one of the first and second opposing portions 701h and 701i is provided with a friction portion 701j, so that the connecting member 701-1 and the connecting member 701-2 are separated from the display 301 by the frictional force. It can be aligned in the radial direction without shifting in the longitudinal direction A1. Accordingly, the plurality of connecting members 701 can be stably aligned in the radial direction.

23K is a schematic plan view of an embodiment of an anti-slip structure using frictional force. Referring to FIG. 23K, a slip prevention part 701k is provided between the plurality of connecting members 701. The slip prevention part 701k is provided on the rear surface 301-2 of the display 301. The slip prevention part 701k may have a strip shape. The slip prevention part 701k may be implemented by attaching a strip-shaped member made of, for example, an elastomer having high frictional force to the rear surface 301-2 of the display 301. The connecting member 701 includes a first opposing portion 701h positioned on the side of the image display surface 301-1 and a second opposing portion 701i positioned on the opposite side thereof. When the plurality of connecting members 701 are located on the same line in the radial direction at a plurality of positions in the circumferential direction, the first opposing portion 701h of the connecting member 701-1 positioned outside in the radial direction is located inside The second opposing portion 701i of the connected member 701-2 is contacted. Even if the first opposing portion 701h slides with respect to the second opposing portion 701i and attempts to shift in the longitudinal direction (A1), since it contacts the slip preventing portion 701k, it does not slide in the longitudinal direction (A1) and does not slide in the second opposing portion ( 701i). Accordingly, the plurality of connecting members 701 can be stably aligned in the radial direction. Although not shown in the drawings, at least one of the first and second opposing portions 701h and 701i may include the friction portion 701j shown in FIG. 23J.

As a structure for aligning the connecting members 701-1 and 701-2 in the radial direction by preventing slipping in the longitudinal direction A1, a zipper-lock structure may be used. 23L is a schematic plan view of an embodiment of an anti-slip structure using a zipper-lock structure. Referring to FIG. 23L, the connecting member 701 includes a protruding portion 701m and a concave portion 701n. The protrusion 701m is an extension portion 701m-1 extending in the thickness direction of the display 301, that is, in the radial direction of the rollers 103 and 203, and the lengthwise direction A1 from the extension portion 701m-1. It is provided with a resilient arm (701m-2) that is extended and elastically deformable in the longitudinal direction (A1). The concave portion 701n is provided near the concave accommodating portion 701n-1 for accommodating the protruding portion 701m and the opening 701n-2 of the accommodating portion 701n-1 to catch the elastic arm 701m-2 A portion 701n-3 is provided. The width W2 of the opening 701n-2 is smaller than the width W1 of the elastic arm 701m-2.

When the plurality of connecting members 701 are located on the same line in the radial direction at a plurality of positions in the circumferential direction, the protrusion 701m of the connecting member 701-1 located outside in the radial direction is located inside the connecting member It is combined with the concave portion 701n of (701-2). That is, as the display 301 is wound around the rollers 103 and 203, the connecting member 701-1 approaches the connecting member 701-2, and the elastic arm 701m-2 opens the opening 701n-2. ) Starts to be inserted into the receiving portion 701n-1. Since the width W2 of the opening 701n-2 is smaller than the width W1 of the elastic arm 701m-2, the elastic arm 701m-2 is a locking portion 701n- provided at the edge of the opening 701n-2. 3). In this state, the connecting member 701-1 is pushed toward the connecting member 701-2 by the tension applied to the display 301, and the elastic arm 701m-2 is compressed in a direction in which the width W1 is decreased. As soon as the width W1 of the elastic arm 701m-2 becomes the same as the width W2 of the opening 701n-2, the elastic arm 701m-2 passes through the opening 701n-2 and passes through the receiving portion 701n- It is inserted in 1). Then, the elastic arm (701m-2) is returned to its original state, and is caught by the locking portion (701n-3). Accordingly, the protrusion 701m is maintained in a state inserted into the concave portion 701n, and a plurality of connection members 701 can be stably aligned in the radial direction.

When the display 301 is released from the rollers 103 and 203, a force (separating force) in a direction away from the connecting member 701-2 is applied to the connecting member 701-1. When the spacing force is applied while the elastic arm 701m-2 is caught by the locking portion 701n-3, the elastic arm 701m-2 is compressed in a direction in which the width W1 is decreased. As soon as the width W1 of the elastic arm 701m-2 becomes the same as the width W2 of the opening 701n-2, the elastic arm 701m-2 passes through the opening 701n-2 and passes through the receiving portion 701n- It deviates from 1). Accordingly, the protruding portion 701m is separated from the concave portion 701n, and the display 301 is released from the rollers 103 and 203 so that the first body 101 and 201 can be developed outside.

The first body 101 and 201 may be supported on the stand 501 to be slid in the longitudinal direction A1. 24 is a perspective view of a rollable display device according to an embodiment.

Referring to FIG. 24, the first bodies 101 and 201 are shown in a state in which the housing forming the exterior is omitted. The stand 501 has a shape extending in the longitudinal direction A1. The stand 501 is provided with a pair of rails 502 and 503. The pair of rails 502 and 503 extend in the longitudinal direction A1. The first bodies 101 and 201 are connected to the rails 502 and 503, respectively. With this configuration, the first body 101 and 201 may be supported on the stand 501 so that it can slide in the longitudinal direction A1.

As an embodiment, the rail 502 may include a pair of slide bars 502a and 502b. The slide bar 502a is supported by the slide bar 502b to be slid in the longitudinal direction A1. The slide bar 502b is supported on the stand 501 to be slidable in the longitudinal direction A1. The first body 101 is connected to the slide bar 502a. According to this configuration, the slide bar 502b slides with respect to the stand 501 within the range of the length of the stand 501, and the slide bar 502a extends beyond the length range of the stand 501 to the slide bar 502b. ) Can be slid against. Accordingly, while reducing the length of the stand 501 in the longitudinal direction A1, the sliding area of the first body 101 can be extended beyond the length range of the stand 501.

Likewise, the rail 503 may have a pair of slide bars 503a and 503b. The slide bar 503a is supported by the slide bar 503b to be slid in the longitudinal direction A1. The slide bar 503b is supported on the stand 501 to be slid in the longitudinal direction A1. The first body 201 is connected to the slide bar 503a. With this configuration, the sliding area of the first body 201 can be extended beyond the length range of the stand 501 while reducing the length of the stand 501 in the longitudinal direction A1.

The display 301 may be withdrawn from the first body 101 and 201 only for a required length. The unfolding length of the display 301, that is, the length that is drawn out of the first bodies 101 and 201 may be adjusted in multiple steps. Adjustment of the deployment length may be implemented by locking the first body 101 and 201 with respect to the second body 401 at a plurality of spaced positions. The rollable display device may include a locking unit that locks the first body 101 and 201 with respect to the second body 401 at a plurality of spaced positions.

25A is a front view of one embodiment of a locking unit. Referring to FIG. 25A, the locking unit includes a blocking member 1400 for locking the first bodies 101 and 201 at a plurality of spaced positions. The blocking member 1400 of the present embodiment selectively allows the first support member 6-1 to move in the direction A1-1 in which the first body 101 and 201 are accommodated. The blocking member 1400 has a blocking position (a position shown by a solid line) to block the first support member 6-1 from moving in the direction A1-1 to be accommodated in the first body 101 and 201, and , Has an allowable position (the position shown by the dotted line). For example, the blocking member 1400 may be supported on the first body 101 and 201 so that it can be rotated to a blocking position and an allowable position. The elastic member 1410 applies an elastic force to the blocking member 1400 in a direction in which it is rotated to the blocking position. The blocking member 1400 includes a blocking portion 1401 that blocks the movement of the first member 603 in the storage direction A1-1, and a first body 101 partially so that the user can switch to an allowable position. The operation unit 1402 exposed to the outside of the 201 may be provided. The blocking member 1400 is positioned adjacent to the sprocket 195. A gap is created between the segmental link 601-1, which is bitten by the sprocket 195 and the transfer direction is switched, and the segmental link 601-2 positioned in front of the segmental link 601-1. As shown by the solid line in FIG. 25A, the blocking member 1400 is removed by engaging the blocking portion 1401 at the rear end 601-2a of the segment link 601-2, that is, the end of the receiving direction A1-1. Blocks the movement of the member 603 in the receiving direction.

When the first body 101 and 201 are spaced apart from the second body 401, that is, the direction in which the first support member 6-1 is drawn out from the first body 101 and 201 (A1-2) When moving to ), the segmental link 601-1 pushes the blocking portion 1401 so that the blocking member 1400 is switched to the allowable position. When the interference between the segmental link 601-1 and the blocking portion 1401 is terminated, the blocking member 1400 is returned to the blocking position by the elastic force of the elastic member 1410. The rear end portion 601-2a of the segment link 601-2 is caught by the blocking portion 1401, and movement of the first support member 6-1 in the receiving direction A1-1 is blocked. By repeating this process, the first body 101 and 201 are separated from the second body 401 and the display 301 is drawn out of the first body 101 and 201 and deployed. In this state, in order for the first body 101 and 201 to move in a direction approaching the second body 401, the first support member 6-1 must be moved in the receiving direction A1-1. . However, since the rear end portion 601-2a of the segmental link 601-2 is hung on the blocking portion 1401 of the blocking member 1400 located in the blocking position, the first supporting member 6-1 is accommodated in the receiving direction. It cannot be moved to (A1-1). Accordingly, the first body 101 and 201 cannot be moved in a direction approaching the second body 401, and the extended length of the display 301 can be maintained. When the display 301 is to be housed in the first body 101, 201, the first body 101, 201 is placed in the second body after switching the blocking member 1400 to the permitted position by pressing the operation unit 1402. The body 401 can be accessed.

With such a configuration, the unfolding length of the display 301 can be adjusted in units of the length of the segment link 601.

In FIG. 25A, a structure for selectively allowing movement of the first support member 6-1 in the receiving direction A1-1 using the blocking member 1400 has been described, but the blocking member 1400 supports the second It may be applied to selectively allow the movement of the member 6-2 in the receiving direction A1-1.

25B is a front view of an embodiment of a locking unit. Referring to FIG. 25B, the locking unit includes a blocking member 1420. The blocking member 1420 selectively allows rotation in a direction A1-3 in which the first support member 6-1 of the sprocket 195 is accommodated in the first body 101 and 201. The sprocket 195 is provided with a plurality of locking projections (195b) arranged in the circumferential direction. The blocking member 1420 is a blocking position (shown by a solid line) and an allowable position (shown by a dotted line) to block rotation of the sprocket 195 in the receiving direction (A1-3) by being caught by the locking protrusion 195b. Position). For example, the blocking member 1420 may be supported on the first body 101 and 201 so that it can be rotated to a blocking position and an allowable position. The elastic member 1430 applies an elastic force to the blocking member 1420 in a direction in which it is rotated to the blocking position. A part of the blocking member 1420 may be partially exposed to the outside of the first body 101 and 201 so that the user can switch to the allowable position. Although not shown in the drawings, the first body 101 and 201 may be provided with an operation unit connected to the blocking member 1420 to switch the blocking member 1420 to an allowable position.

When the first body 101, 201 is spaced apart from the second body 401, the sprocket 195 pulls the first support member 6-1 from the first body 101, 201 ( When rotated to A1-4), the locking projection 195b pushes the blocking portion 1421 so that the blocking member 1420 is switched to the allowable position. When the interference between the worries jaw 195b and the blocking portion 1421 is terminated, the blocking member 1420 is returned to the blocking position by the elastic force of the elastic member 1430 and is moved toward the receiving direction A1-3 of the sprocket 195. Rotation is blocked. By repetition of this process, the first body 101 and 201 are separated from the second body 401 and the display 301 is drawn out to the outside of the first body 101 and 201 and deployed. In this state, in order for the first body 101 and 201 to move in a direction approaching the second body 401, the sprocket 195 must be rotated in the receiving direction A1-3. However, the sprocket 195 cannot be rotated in the receiving direction A1-3 because the locking projection 195b is caught in the blocking portion 1401 of the blocking member 1400 located in the blocking position. Accordingly, the first body 101 and 201 cannot be moved in a direction approaching the second body 401, and the extended length of the display 301 can be maintained. When the display 301 is to be housed in the first body 101 and 201, the first body 101 and 201 are removed after switching the blocking member 1420 to the allowable position by manipulating an operation unit (not shown). 2 Get closer to the body 401.

With this configuration, the deployment length of the display 301 can be adjusted in units of disposition intervals of the plurality of locking projections 195b.

In FIG. 25B, a structure for selectively allowing rotation of the sprocket 195 in the receiving direction A1-3 using the blocking member 1420 has been described, but the blocking member 1420 includes the sprockets 196, 295, and 296) may be applied to selectively allow rotation in the receiving direction A1-3.

26 is a schematic plan view of an embodiment of a rollable display device. In FIG. 26, the first body 101 is mainly shown. Referring to FIG. 26, guide rollers 104 and 204 are provided on the first body 101 and 201, respectively. The guide rollers 104 and 204 guide the display 301 released from the rollers 103 and 203 to the openings 111 and 211 provided in the first body 101 and 201. In the absence of the guide rollers 104 and 204, when the display 301 is wound on the rollers 103 and 203 the most, the display 301 is directed to the openings 111 and 211 along the path marked B1, When the display 301 is wound on the rollers 103 and 203 the least, the display 301 is directed to the openings 111 and 211 along the path marked B2. That is, according to a change in the amount of winding of the display 301 around the rollers 103 and 203, the traveling direction of the display 301 drawn out through the openings 111 and 211 is changed. When the guide rollers 104 and 204 are provided, between the rollers 103 and 203 and the guide rollers 104 and 204 according to the change in the amount of winding of the display 301 to the rollers 103 and 203 The traveling direction of the display 301 changes as indicated by reference numerals B3 and B4, but the traveling direction of the display 301 between the guide rollers 104 and 204 and the openings 111 and 211 is B. Is constant as indicated by Therefore, the traveling direction of the display 301 drawn out through the openings 111 and 211 can be kept constant.

The first and second support members 6-1 and 6-2 may be synchronously brought in/out from/to the first body 201. 27 is a rear view of an embodiment of a rollable display device. In FIG. 27, the housings of the first bodies 101 and 201 are omitted. Referring to FIG. 27, the first and second sprockets 195 and 196 may be connected to each other by a power connection means. The power connection means may include, for example, a gear, a belt, a timing belt, a wire, or the like. An example of the power connecting means will be described with reference to FIG. 27. The gear 1501 is provided on the second sprocket 196. A pulley 1506 is provided on the second sprocket 196. A gear 1504a is provided on the pulley 1504b mated with the pulley 1506. The gear 1501 and the gear 1504a are connected to each other by the gears 1502 and 1503. A belt, for example a timing belt 1505, is hung between the pulley 1506 and the pulley 1504b. Accordingly, the first and second sprockets 195 and 196 may be rotated in synchronization with each other. Likewise, as shown in the reference numerals shown in parentheses in FIG. 27, the first and second sprockets 295 and 296 provided on the second body 201 are also connected to each other by the power connection means in the same manner and rotated in synchronization have. Accordingly, the first and second support members 6-1 and 6-2 can be synchronously brought in/out from/to the first body 101, 201.

As the first body 101 and 201 approaches the second body 401, the rollers 103 and 203 wind up the display 301. To this end, the rollers 103 and 203 need to be rotated in a direction in which the display 301 is wound. Hereinafter, embodiments of the structure of rotating the rollers 103 and 203 will be described. 28 is an exploded perspective view showing an embodiment of a structure in which the rollers 103 and 203 are supported so that they can be rotated on the first body 101 and 201. FIG. 29 is a cross-sectional view taken along the line E-E' of FIG. 28.

Referring to FIGS. 28 and 29, end portions 103-1 and 203-1 of the rollers 103 and 203 are supported so as to be rotatable on the frames 150 and 250. The rollers 103, 203, the other ends 103-2 and 203-2 are supported so that they can be rotated on the frames 150 and 250 through the tension applying unit 7.

The tension applying unit 7 is the first body 101, 201 so that the display 301 can be rotated in the same direction as the rollers 103 and 203 as the display 301 is inserted/removed into the first body 101, 201. ) Is supported. The tension applying unit 7 includes a torsion spring 63 and a rotation support member 60 that is supported so that one end 63b of the torsion spring 63 is supported and can be rotated to the frames 150 and 250 do. The rotation support member 60 is a bush member 61 supported so as to be rotated on the frames 150 and 250, and the other ends 103-2 and 203-2 of the rollers 103 and 203 are rotated. It may include a shaft member 62 having a support shaft (62c) supported so as to be. The bush member 61 is supported so as to be rotatable on the frames 150 and 250. The shaft member 62 is rotated together with the bush member 61. To this end, the bush member 61 and the shaft member 62 are provided with first and second coupling portions 61a and 62a having complementary shapes so that they can be engaged with each other in the direction of rotation. The support shaft 62c is inserted into the inner diameter portion 63a of the torsion spring 63. One end 63b of the torsion spring 63 is fixed to the shaft member 62. For example, one end (63b) of the torsion spring (63) is inserted into the fixing groove (62b) provided in the shaft member (62). The rollers 103 and 203 are provided with hollow portions 103-3 and 203-3. The torsion spring 63 is inserted into the hollow portions 103-3 and 203-3 while being inserted into the support shaft 62c. The hollow portions 103-3 and 203-3 are provided with engaging portions 103-4 and 203-4 to which the other end 63c of the torsion spring 63 is caught.

By the above-described configuration, one end (103-1) (203-1) is supported to be rotated on the frame (150) (250), and the other end (103-2) (203-2) is a tension applying unit The rollers 103 and 203 supported so as to be rotated on the frames 150 and 250 through (7) may be implemented. In this state, as shown in FIG. 29, by rotating the rotation support member 60 in the direction of the arrow D1, the initial elastic force in the direction of winding the display 301 around the rollers 103 and 203 ( F1) can be applied. Tension in a flat spread direction may be applied to the display 301 by the initial elastic force F1.

If the rotation of the rotation support member 60 is not restricted in a free state in which the initial elastic force F1 is applied, the rotation support member 60 is rotated in the opposite direction D2 to the arrow D1, The initial elastic force F1 cannot be applied. Therefore, the rotation support member 60 needs to be locked so as not to rotate while the initial elastic force F1 is applied thereto.

In a state in which the initial elastic force F1 is applied, the rotation support member 60 is connected to at least one of the first and second support members 6-1 and 6-2. That is, the rotation support member 60 is connected to at least one of the first and second support members 6-1 and 6-2, and is locked while the initial elastic force F1 is applied thereto. When at least one of the first and second support members 6-1 and 6-2 moves, the rotation support member 60 is rotated accordingly. For example, the rotation support member 60 may be connected to the sprockets 195, 196, 295 and 296. Accordingly, when the sprockets 195, 196, 295, and 296 are not rotated, the rotation support member 60 is also locked without being rotated. When the sprockets 195, 196, 295, and 296 are rotated, the rotation support member 60 is rotated.

30 is a perspective view showing an example of a connection structure between the rotation support member 60 and the sprockets 195, 196, 295, and 296. 27, 28, and 30, the rotation support member 60, for example, the bush member 61 is provided with a gear portion (61b). The gear part 61b is connected to the sprockets 195, 196, 295, and 296. For example, the gear part 61b is connected to the gear 1501 provided on the sprockets 196 and 296 of the gears 1507 to 1510. Since the rotational direction of the rollers 103, 203 and the rotational support member 60 is orthogonal to the rotational direction of the sprockets 196 and 296, one of the gears 1507 to 1510 can convert the rotational direction by 90 degrees. Have a structure. For example, the gear 1510 includes a spur gear portion 1510a connected to the gear 1509 and a bevel gear portion 1510 that rotates coaxially with the spur gear portion 1510. The gear part 61b is a bevel gear meshing with the bevel gear part 1510b. With this configuration, the rotational support member 60 is responsive to the rotation of the sprockets 195, 196, 295, and 296 according to the movement of the first and second support members 6-1 and 6-2. It rotates in conjunction.

As shown in FIG. 29, an initial elastic force (F1) in the direction of winding the display 301 is applied to the rollers 130 and 203 by rotating the rotation support member 60 in the direction of the arrow D1. When the gear part 61b is engaged with the bevel gear part 1510b, the rotation support member 60 can be maintained in that state. In this state, when the first body 101, 201 is approached/separated from/to the second body 401 and the display 301 is withdrawn/retracted from/to the first body 101, 201, the roller The (103) 203 and the rotation support member 60 are rotated in a direction in which the display 301 is released or a direction in which the display 301 is wound.

31 is a graph showing the relationship between the development distance of the display 301, the rotation amount of the rollers 103, 203, and the rotation amount of the rotation support member 60. As shown in FIG. Referring to Fig. 31, when the development distance is "0", the initial rotation amount of the rollers 103 and 203 is d1. The initial rotation amount d1 does not mean a state in which the rollers 103 and 203 are actually rotated, but refers to a relative rotation amount with respect to the rotation support member 60 for applying the initial elastic force F1.

The amount of rotation of the rollers 103 and 203 is not linearly proportional to the spreading distance of the display 301. This is because the outer diameters of the rollers 103 and 203 including the display 301 vary according to the amount of the display 301 wound around the rollers 103 and 203. That is, when the amount of the display 301 wound around the rollers 103 and 203 is small, the roller 103 against the change of the same spreading distance compared to when the amount of the display 301 wound around the rollers 103 and 203 is large. The amount of rotation of 203 is larger. Therefore, the relationship between the deployment distance and the rotation amount of the rollers 103 and 203 becomes a curved shape in which the inclination gradually increases as the deployment distance increases, as indicated by E1 in FIG. 31.

If the rotation support member 60 is not rotated, the amount of rotation of the rollers 103 and 203 is d2 when the display 301 is completely withdrawn from the first body 101 and 201. The magnitude of the elastic force F2 provided to the rollers 103 and 203 by the torsion spring 63 is proportional to the amount of rotation d2. Therefore, a very strong elastic force (F2) is applied to the rollers 103 and 203 in a state where the display 301 is completely withdrawn from the first body 101 and 201, and the larger the spreading distance of the display 301 increases. A large force is required to separate the first body 101 and 201 from the second body 401.

According to this embodiment, the rotation support member 60 is rotated together with the rollers 103 and 203 as the display 301 is brought in/out of the first body 101 and 201. Since the deployment distance of the display 301 with respect to the first body 101 and 201 is the same as the amount of movement of the first and second support members 6-1 and 6-2, the amount of rotation of the rotation support member 60 Is in a linear proportional relationship with the unfolding distance of the display 301 with respect to the first body 101 and 201. Therefore, the relationship between the deployment distance and the amount of rotation of the rotation support member 60 becomes a straight line with an inclination E2a as indicated by E2 in FIG. 31.

The magnitude of the elastic force applied to the rollers 103 and 203 by the torsion spring 63 is proportional to the difference between the amount of rotation of the rollers 103 and 203 and the amount of rotation of the rotation support member 60. That is, the magnitude of the elastic force applied to the rollers 103 and 203 by the torsion spring 63 when the display 301 is completely withdrawn from the first body 101 and 201 is proportional to d4. Accordingly, according to the present embodiment in which the rotation support member 60 is rotated together with the rollers 103 and 203, the elastic force F2' when the display 301 is completely withdrawn from the first body 101, 201 ) Is smaller than the elastic force F2 in the structure in which the rotation support member 60 is not rotated. Therefore, it is possible to reduce the change in the amount of elastic force applied to the rollers 103 and 203 in the process of the display 301 being unfolded, that is, the change in the amount of tension applied to the display 301, so that the display 301 It is possible to reduce the change in force required during the development process.

The slope E2a of the straight line E2 may be adjusted by a connection ratio between the gear part 61b and the sprocket 196. For example, by using at least one of the gears 1507 to 1510 as a reduction gear, the slope E2a of the straight line E2 can be adjusted. _{By appropriately selecting the gear ratio of the reduction gear, the minimum value d min} of the difference between the rotation amount of the rollers 103 and 203 and the rotation amount of the rotation support member 60 keeps the display 301 flat and the display ( When the 301 is unfolded or wound up, the rollers 103 and 203 may be set to be greater than or equal to a value that generates the minimum elastic force required to rotate as needed according to the deployment distance. The slope E2a of the straight line E2 may be set equal to the slope E3a of the straight line E3 connecting the initial rotation amount and the final rotation amount of the rollers 103 and 203. Accordingly, it is possible to minimize the amount of fluctuation in the magnitude of the elastic force applied to the rollers 103 and 203 by the torsion spring 63 according to the deployment distance of the display 301.

In the above-described embodiment, the first body 101, 201 is manually approached/separated from/to the second body 401 to bring in/out the display 301 to/from the first body 101, 201. Although the structure to allow the first body 101 and 201 to be approached/separated from/to the second body 401 using a motor, the display 301 is moved to/from the first body 101 and 201/ In/out structure is also possible. As an example, the motor rotates the first and second sprockets 195, 196, 295, and 296 to move the first and second support members 6-1 and 6-2 to move the first body. (101) The display 301 can be brought in/out from/to the first body 101,201 by approaching/separating the 201 from/to/from the second body 401. 27 and 30, the rollable display device includes a motor 1500. The motor 1500 rotates the gear 1507. The gear 1507 is connected to the gear 1501 provided on the sprocket 196. With this configuration, when the motor 1500 is driven in the forward direction and the first and second sprockets 195, 196, 295, and 296 are rotated in the withdrawal direction, the first and second support members 6-1 ) (6-2) is deployed to the outside of the first body 101 (201). Then, as the first body 101 and 201 move away from the second body 401, the display 301 is pulled out from the first body 101 and 201 and spreads between the first body 101 and 201 Can be.

Conversely, when the motor 1500 is driven in the reverse direction to rotate the first and second sprockets 195, 196, 295, and 296 in the receiving direction, the first and second supporting members 6-1 and 6 -2) is drawn into the inside of the first body 101, 201. Then, the first body 101 and 201 may approach the second body 401 and the display 301 may be accommodated in the first body 101 and 201.

In this process, the rotation support member 60 may also be rotated in proportion to the deployment distance of the display 301.

32 is a partial perspective view of an embodiment of a rollable display device. 33 is a cross-sectional view taken along line G-G' of FIG. 32. Referring to FIGS. 32 and 33, the segment link 601 has a shape capable of protecting the edges 301a and 301b of the display 301. The segment link 601 includes a rib 601c extending from the rear surface 301-2 of the display 301 to the image display surface 301-1 beyond the edges 301a and 301b. The rib 601c covers the edges 301a and 301b of the display 301. When the display 301 is deployed, the edges 301a and 301b may be damaged by an external impact. According to this embodiment, the edges 301a and 301b are covered by the ribs 601c. Accordingly, the risk of damage to the edges 301a and 301b of the display 301 can be reduced.

34 is a schematic plan view of an embodiment of a rollable display device. Referring to FIG. 34, the first and second support members 6-1 and 6-2 support the central portion of the display 301 in the width direction A2. In FIG. 34, the first and second support members 6-1 and 6-2 are positioned adjacent to each other in the width direction A2, but may be spaced apart from each other. The rotation directions of the segmental links 601 of the first and second support members 6-1 and 6-2 are opposite to each other. According to this configuration, in a state in which the first and second support members 6-1 and 6-2 are withdrawn to the outside of the first body 101 and 201, both directions centering on the hinge shaft 653 Since the rotation of the display is limited by the first and second support members 6-1 and 6-2, the display 301 can be maintained in a stably unfolded state. A structure in which the first and second supporting members 6-1 and 6-2 are inserted/removed from/to the first body 101 and 201, and the display 301 is the first body 101 and 201 The structure to be drawn in/out from/to and the structure of rotating the rollers 103 and 203 are the same as described above.

In the above-described embodiment, a structure in which the pair of first bodies 101 and 201 are approached/separated from the second body 401 has been described, but one first body 101 is the second body 401 ), it is also possible to access/separate the structure. 35 is a schematic plan view of an embodiment of a rollable display device. In FIG. 35, only the supporting structure is shown, and the roller 103 is omitted. The rollable display device of this embodiment may be a hanging device in which the second body 401 is fixed to, for example, a wall or a ceiling. A structure in which the first and second supporting members 6-1 and 6-2 are drawn in/out from/to the first body 101, and the display 301 is drawn in/out from/from the first body 101 The structure, the structure of rotating the roller 103 is the same as described above. One end of the display 301 is fixed to the roller 103 and the other end of the display 301 is fixed to the second body 401. One end of the first and second support members 6-1 and 6-2 is fixed to the second body 401.

As described above, although the present invention has been described by limited embodiments and drawings, the present invention is not limited to the above embodiments, and various modifications and variations are possible from these descriptions by those of ordinary skill in the field to which the present invention pertains. Do.

In particular, in embodiments of the rollable display device, a structure in which the display is unfolded while the first body moves in the horizontal direction has been described as an example, but a structure in which the display is unfolded while the first body moves in the longitudinal direction is also possible.

Therefore, the scope of the present invention is limited to the described embodiments and should not be defined, and should be defined by the claims and equivalents as well as the claims to be described later.

101, 201... first body 103, 203... roller
104, 204...Guide roller 151, 251...1st compartment
152, 252...2nd storage part 195, 295...1st sprocket
196, 296...second sprocket 301...display
301a, 301b... edge of display 401... second body
501...stand 6...support unit
6-1, 6-2... 1st, 2nd supporting member 601... Segmental link
603, 623... 1st chain 605, 625... 2nd chain
7...tension application part 60...rotation support member
61... Bush member 62... Support shaft
63...torsion spring 701...connection member
1400, 1420...blocking member 1500...motor

Claims (32)

First and second bodies;
A display having an image display surface and a rear surface;
A roller supported by the first body so as to be rotated about a rotation axis in the width direction of the display, one end of the display in the longitudinal direction is fixed, and the display is wound around the outer circumference of the display;
A plurality of segmental links in the form of a chain connected so as to be rotated in an unfolded state and a curved state in one direction about a hinge axis perpendicular to the image display surface, and a support member accommodated in a receiving portion provided in the first body; and ,
The display is released from the rollers as the first body is spaced apart from the second body and is drawn out from the first body to be deployed in the longitudinal direction,
The support member is a rollable display device that is drawn out from the first body in the longitudinal direction as the first body is spaced apart from the second body to support a rear surface of the display. The method of claim 1,
The accommodating part is a rollable display device extending in the width direction. The method of claim 1,
A rollable display device further comprising: a sprocket installed on the first body to be rotated about a rotation axis perpendicular to the image display surface to move the support member. The method of claim 3,
The sprocket changes the moving direction of the support member from the width direction to the longitudinal direction when the support member is withdrawn from the first body, and the support member moves when the support member is retracted into the first body. A rollable display device that changes a direction from the longitudinal direction to the width direction. The method of claim 4,
The support member is a rollable display device that supports an edge of the display in the width direction. The method of claim 5,
A rollable display device provided with a rib extending toward the image display surface beyond the edge of the segmental link. The method of claim 5,
The sprocket is located adjacent to the edge of the display,
A plurality of connecting members having a first connecting portion are installed at the edge of the display,
A rollable display device provided with a second connector connected to the first connector on the plurality of segmental links. The method of claim 7,
When the moving direction of the plurality of segmental links is switched to the length direction and the width direction by the sprocket, the first connection part and the second connection part are connected to each other or disconnected from each other. The method of claim 7,
The first connection portion has a protrusion shape extending in the width direction,
The second connector is a rollable display device having a groove shape into which the first connector is inserted. The method of claim 7,
The distance between the plurality of connecting members is the same as the distance between the plurality of segmental links. The method of claim 7,
The distance between the plurality of connecting members is a distance at which the plurality of connecting members are aligned in a radial direction of the roller at a plurality of positions in the circumferential direction of the roller when the display is wound around the roller. The method of claim 11,
The connecting member is provided with a protruding portion and a concave portion,
A rollable display device in which a protrusion of a connecting member positioned outside is inserted into a concave portion of a connecting member positioned inside in a state aligned in the radial direction. The method of claim 12,
The protrusion has an elastic arm,
The concave portion includes a receiving portion that receives the elastic arm and the width of the opening is smaller than the width of the elastic arm, and a locking jaw provided at an edge of the opening to catch the elastic arm,
A rollable display device in which the elastic arm of the connecting member positioned on the outside in the radially aligned state is inserted into the receiving portion of the connecting member positioned on the inside. The method of claim 11,
The connecting member is provided with a first magnetic member and a second magnetic member,
A rollable display device in which a second magnetic member of a connecting member positioned inside and a first magnetic member of a connecting member positioned outside are attached to each other by magnetic force in the radially aligned state. The method of claim 11,
The connecting member is provided with a first opposing portion and a second opposing portion,
At least one of the first and second opposing portions is provided with a friction portion,
A rollable display device in which a second opposing portion of a connecting member positioned at an inner side and a first opposing portion of a connecting member positioned at an outside contact with each other in a state aligned in the radial direction. The method of claim 11,
The connecting member is provided with a first opposing portion and a second opposing portion,
A slip preventing member is provided between the plurality of connecting members,
A rollable display device in which a second opposing portion of a connecting member positioned at an inner side and a first opposing portion of a connecting member positioned at an outside contact with each other in a state aligned in the radial direction. The method of claim 4,
The support member includes first and second support members supporting both edges of the display in the width direction. The method of claim 17,
A rollable display device in which rotation directions of the plurality of segmental links of the first and second support members are opposite to each other. The method of claim 18,
The sprocket includes first and second sprockets positioned adjacent to both edges of the display in the width direction,
A plurality of connecting members having a first connecting portion are installed at both edges of the display,
A rollable display device provided with a second connector connected to the first connector on the plurality of segmental links of the first and second support members. The method of claim 19,
When the moving direction of the first and second support members is switched to the longitudinal direction and the width direction by the first and second sprockets, the first connecting portion and the second connecting portion are connected to each other or are disconnected from each other. Display device. The method of claim 19,
The distance between the plurality of connecting members is a distance at which the plurality of connecting members are aligned in a radial direction of the roller at a plurality of positions in the circumferential direction of the roller when the display is wound around the roller. The method of claim 4,
The support member includes first and second support members for supporting the rear surface of the display at positions spaced apart from each other in the width direction of the display,
A rollable display device in which rotation directions of the plurality of segmental links of the first and second support members are opposite to each other. The method of claim 4,
A rollable display device further comprising a locking unit for locking the first body at a plurality of spaced positions with respect to the second body. The method of claim 23,
The locking unit,
And a blocking member having a blocking position for blocking movement of the support member in the storage direction accommodated in the first body and an allowable position. The method of claim 24,
In the blocking position, the blocking member blocks the segmental link located in front of the segmental link bitten by the sprocket from moving in the receiving direction. The method of claim 25,
When the support member is withdrawn from the first body, the blocking member interferes with the segmental link and is switched from the blocking position to the allowable position. The method of claim 26,
The locking unit,
The rollable display device further comprising an elastic member for applying an elastic force to the blocking member in a direction that is converted to the blocking position. The method of claim 24,
The locking unit,
It further includes a plurality of locking projections on which the sprocket is provided,
The blocking member is a rollable display device configured to block the sprocket from being rotated in a direction in which the support member is moved in the receiving direction by being caught by the locking jaw in the blocking position. The method of claim 28,
When the sprocket rotates in a direction in which the support member is pulled out of the first body, the blocking member interferes with the locking projection and is switched to the allowable position. The method of claim 29,
The locking unit,
The rollable display device further comprising an elastic member for applying an elastic force to the blocking member in a direction that is converted to the blocking position. The method of claim 1,
The other end of the display in the longitudinal direction is fixed to the second body,
One end of the support member is a rollable display device that is fixed to the second body. The method of claim 1,
The first body includes a pair of first bodies positioned on both sides of the second body in the longitudinal direction,
The rollers are provided on each of the pair of first bodies, and include a pair of rollers to which one end and the other end of the display are fixed,
The support member is installed across the pair of first bodies, and a part of the support member is fixed to the second body.

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