KR102440224B1 - display device - Google Patents

Abstract

A display device is disclosed. The display device of the present invention includes a housing, at least one roller positioned in the housing, a display unit including a display panel and a module cover, and a motor assembly, an upper bar coupled to an upper portion of the display unit, and one side of the upper bar It is connected to both ends, and the other end includes a driving unit coupled to the motor assembly and including at least one support for elevating the upper bar, wherein the display panel and the module cover are wound around the at least one roller in a first state and , is released from the at least one roller and is in contact with each other and is in any one of the second states exposed to the outside of the housing, and the at least one support part is driven together when changing from the first state to the second state It is characterized in that it includes the first and second links. According to the present invention, since the support includes two links, the display panel is not biased to one side so that the user can focus more on the display screen.

Description

display device {DISPLAY APPARATUS}

The present invention relates to a display device, and more particularly, to a display device in which a support portion includes two links, so that a display panel is not biased to one side and a user can focus more on a display screen.

As the information society develops, the demand for display devices is also increasing in various forms. Display) and various display devices have been studied and used.

Among them, a display device using an organic light emitting diode (OLED) has superior luminance characteristics and viewing angle characteristics compared to a liquid crystal display device, and does not require a backlight unit, so it can be implemented in an ultra-thin shape.

SUMMARY OF THE INVENTION The present invention aims to solve the above and other problems. Another object of the present invention is to provide a display device in which the display panel is not biased to one side so that the user can focus more on the display screen.

According to one aspect of the present invention to achieve the above or other objects, a housing, at least one roller positioned in the housing, a display unit including a display panel and a module cover, and a motor assembly, and a motor assembly coupled to the upper portion of the display unit a driving unit including an upper bar, one end connected to both ends of the upper bar, and the other end coupled to the motor assembly to include at least one support for elevating the upper bar, wherein the display panel and the module cover include the at least one is in any one of a first state wound around a roller of Provided is a display device including first and second links that are driven together when changing to a state.

The first and second links include first and second upper links having one side connected to both ends of the upper bar, a hinge connected to the other side of the upper link, one side connected to the hinge, and the other side connected to the motor assembly. 1 and 2 may include lower links.

The first upper link and the first lower link may include a gear shape in which portions connected to the hinge correspond to each other and engage with each other.

An angle between the first and second upper links and the first and second lower links may be changed based on the hinge according to rotation of the motor assembly.

A distance between the first upper link and the second upper link may vary according to rotation of the motor assembly.

The first link may be connected to a central portion of the hinge, and the second link may be connected to both sides of the hinge.

An angle between the first and second upper links connected to one side of the upper bar and the first and second lower links connected to the first and second upper links may be the same regardless of the state of the display panel.

The display panel and the module cover may be wound by one roller.

At least a portion of the width of the first link may overlap the second link.

An overlapping width of the first link and the second link may be changed according to rotation of the motor assembly.

The driving unit includes a transmission unit having one side connected to the support unit, an auxiliary link having one side connected to the transmission unit and the other side coupled to the housing, wherein the auxiliary link includes a spring part for pressing the transmission unit therein. may include

The spring unit may include first to third springs.

At least one of the first to third springs may have a different spring constant.

The auxiliary link is positioned inside the auxiliary link, and may further include a supporter positioned between the first to third springs.

The module cover may include a plurality of aprons at least partially connected to each other.

It may further include a bracket positioned under the at least one roller and having a surface facing the at least one roller recessed inward.

A diameter of the recessed portion of the bracket may be greater than a diameter of the at least one roller.

The driving unit may further include a guide wheel located at a portion where the transmission unit and the auxiliary link are connected, and a guide rail located at the bottom of the housing and into which the guide wheel is inserted.

The display panel and the module cover may be attached through an adhesive layer.

It may further include a roller hub coupled to the central shaft of the at least one roller, a spring shaft spaced apart from the roller hub, and a constant spring wound around the spring shaft and the roller hub.

The effect of the display device according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, since the support includes two links, the display panel is not biased to one side so that the user can focus more on the display screen.

Further scope of applicability of the present invention will become apparent from the following detailed description. However, it should be understood that the detailed description and specific embodiments such as preferred embodiments of the present invention are given by way of illustration only, since various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art.

1 to 6 are views showing the configuration of a display device related to the present invention.
7 to 31 are diagrams illustrating a display device according to an embodiment of the present invention.
32 to 43 are diagrams illustrating a display device according to another exemplary embodiment of the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "part" for components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Hereinafter, the display panel will be described with an organic light emitting display (OLED) as an example, but the display panel applicable to the present invention is not limited to the liquid crystal panel, and the liquid crystal panel (Liquid Crystal Display Device) , LCD), Plasma Display Panel (P), and Field Emission Display (FED) are also possible.

1 to 6 are views showing the configuration of a display device related to the present invention.

As shown in FIG. 1 , in the following, the display panel 110 has a first long side (First Long Side, LS1), a second long side opposite to the first long side (LS1), a second long side (LS2), and a first long side It may include a first short side (SS1) adjacent to the LS1 and the second long side (LS2) and a second short side (SS2) opposite to the first short side (SS1).

Here, the first short side area SS1 is referred to as a first side area, the second short side area SS2 is referred to as a second side area opposite to the first side area, and the second short side area is referred to as a second side area. The first long side area LS1 is referred to as a third side area adjacent to the first side area and the second side area and positioned between the first side area and the second side area, and the second long side area ( It is possible to call LS2 a fourth side area adjacent to the first side area and the second side area, located between the first side area and the second side area, and opposite to the third side area. .

In addition, for convenience of explanation, the lengths of the first and second long sides LS1 and LS2 are illustrated and described as being longer than the lengths of the first and second short sides SS1 and SS2, but the first and second long sides LS1, A case in which the length of LS2 is approximately equal to the length of the first and second short sides SS1 and SS2 may also be possible.

In addition, in the following, the first direction (First Direction, DR1) is a direction parallel to the long side (Long Side, LS1, LS2) of the display panel 100, and the second direction (Second Direction, DR2) of the display panel 100 It may be in a direction parallel to the Short Side (SS1, SS2).

The third direction DR3 may be a direction perpendicular to the first direction DR1 and/or the second direction DR2 .

The first direction DR1 and the second direction DR2 may be collectively referred to as a horizontal direction.

In addition, the third direction DR3 may be referred to as a vertical direction.

Referring to FIG. 2 , the display device 100 according to the present invention may include a display unit 20 and a housing 30 .

The display unit 20 may include a display panel 10 and a module cover 15 . The display panel 10 is provided on the front surface of the display apparatus 100 and an image can be displayed. The display panel 10 may output an image by dividing the image into a plurality of pixels and controlling to emit light according to color, brightness, and saturation for each pixel. The display panel 10 may be divided into an active area in which an image is displayed and an inactive area in which an image is not displayed.

The display panel 10 may have a rectangular shape. However, the present invention is not limited thereto, and the display panel 10 may have a shape having a predetermined curvature at the corners. The display panel 10 may be an organic light emitting diode (OLED) panel. However, the present invention is not limited thereto, and the display panel 10 may be a liquid crystal display panel.

The module cover 15 may be provided on the rear surface of the display panel 10 . The module cover 15 may be directly attached to the display panel 10 . The module cover 15 may be the same as the size of the display panel 10 or may be larger than the display panel 10 .

The module cover 15 may support the rear surface of the display panel 10 . Accordingly, the module cover 15 may include a material having high strength while being light. For example, the module cover 15 may include aluminum.

The housing 30 may be provided on the rear surface of the display unit 20 . That is, the housing 30 may be provided on the rear surface of the module cover 15 . The housing 30 may shield at least one PCB. That is, it means that at least one PCB attached to the rear surface of the module cover 15 can be covered. A detailed coupling structure and coupling method of at least one PCB will be described later.

The housing 30 may transmit electromagnetic waves emitted from at least one PCB. Accordingly, although not illustrated, the housing 30 may include an inner housing made of a conductive material and an outer housing covering the inner housing. However, the present invention is not limited thereto, and the housing 30 may be made of a single conductive material.

Referring to FIG. 3 , in the display apparatus 100 according to the present invention, the housing 30 may be located below the display unit 20 . In detail, the housing 30 may have a shape surrounding the lower portion of the display unit 20 . The housing 30 may prevent various driving equipment or driving circuits located therein from being exposed to the outside.

The width of the housing 30 in the first and third directions may be greater than the width of the display unit 20 in order to protect the display unit 20 therein. The width of the housing 30 in the second direction may be smaller than the width of the display unit 20 because it obstructs the user's view.

In the display apparatus 100 according to the present invention, the housing 30 may not be located in the active area of the display unit 20 . Accordingly, users can be immersed in the screen of the thinner display unit 20 .

Referring to FIG. 4 , the display device 100 according to the present invention may be in a first state in which the active region of the display unit 20 is located inside the housing 30 and in a second state in which the active area of the display unit 20 is exposed to the outside of the housing 30 . .

When the display apparatus 100 is in the first state, the active area of the display unit 20 may be located inside the housing 30 . That is, it means that the display unit 20 can be shielded by the housing 30 .

When the display apparatus 100 is in the second state, the active area of the display unit 20 may be exposed to the outside of the housing 30 . That is, when the display unit 20 is in the second state, it means that at least a portion of the display unit 20 may protrude above the housing 30 .

Although not shown, the display unit 20 may change from the first state to the second state by a roller located in the housing 30 . In detail, in a first state in which the display unit 20 is wound by the rollers, the rollers are released to change to a second state in which the display unit 20 is exposed to the outside. Conversely, the display unit 20 may change from the second state to the first state when the roller is unwound and wound. The detailed structure and operation method of the roller and the display unit 20 will be described later.

In the display apparatus 100 according to the present invention, the display unit 20 may be in any one of a first state and a second state. Accordingly, the user can save space by exposing the display unit 20 to the outside of the housing 30 only when viewing the display apparatus 100 .

Referring to FIG. 5 , in the display device according to the present invention, a panel roller 143 may be connected to one end of the display panel 10 . The panel roller 143 may wind and unwind the display panel 10 so that the display panel 10 is in either the first state or the second state.

In the display device according to the present invention, at least one source PCB 120 may be positioned on at least a portion of the front surface of the display panel 10 . Each of the source PCBs 120 may be spaced apart from each other.

Signal wires for transmitting digital video data and timing control signals transmitted from the timing controller board 105 may be located in the at least one source PCB 120 . The source PCB 120 may be connected to the display panel 10 by a source COF (Chip On Film) 123 . The source COF 123 connected to one side of the source PCB 120 may extend to an active area of the display panel 10 to be connected to the display panel 10 .

A seating part 379 may be positioned on the outer periphery of the panel roller 143 . That is, it means that at least a part of the outer periphery of the panel roller 143 is stepped. As the panel roller 9143 is wound, the mounting portion 379 may be positioned at a portion where the source PCB 120 contacts the panel roller 143 . The seating portion 379 may have a shape in which at least a portion of the outer periphery of the panel roller 143 is recessed.

When the panel roller 143 is wound, the source PCB 120 is seated in the mounting portion 379 , and at least a portion thereof may be in contact with the panel roller 143 . Accordingly, even when the panel roller 143 is wound, the source PCB 120 may not be damaged.

The timing controller board 105 may be mounted inside the panel roller 143 . The timing controller board 105 may be mounted inside the panel roller 143 to prevent the FFC cable 117 connected to the source PCB 120 from being twisted.

The panel roller 143 may include an upper panel roller 331 and a lower panel roller 337 . The upper panel roller 331 and the lower panel roller 337 may be coupled to each other by at least one screw. The timing controller board 105 may be mounted between the upper panel roller 331 and the lower panel roller 337 . At least one screw may couple the upper panel roller 331 and the lower panel roller 337 together, while also coupling the timing controller board 105 together. The FFC cable 117 may be connected to the timing controller board 105 and the source PCB 120 through a hole located in the upper panel roller 331 .

In the display device according to the present invention, since the timing controller board 105 rotates together with the panel roller 143, the FFC cable 117 can be coupled without being twisted, and the timing controller board 105 inside the panel roller 143 space can be saved because it is mounted.

Referring to FIG. 6 , in the display device according to the present invention, a timing controller board 105 is mounted on a panel roller 143 on one side of the central portion of a housing 30 from which a display panel moves, and a main board on the other side. 109 and a power supply 107 may be located.

The timing controller board 105 may be connected to the main board 109 and the power supply 107 . The timing controller board 105 may be connected to the main board 109 and the power supply 107 through a wiring electrode 113 . In detail, the wiring electrode 113 includes a first wiring electrode 307 connecting the timing controller board 105 and the power supply 107 and a second wiring connecting the timing controller board 105 and the main board 109 . An electrode 309 may be included.

For example, there may be a plurality of first wiring electrodes 307 . Also, the first wiring electrode 307 may have a circular shape. The first wiring electrode 307 may connect the timing controller board 105 and the power supply 107 through an opening in the center of the rotation shaft of the panel roller 143 .

The second wiring electrode 309 may use an FFC cable through which the timing controller board 105 and the source PCB 120 are connected. The second wiring electrode 309 may connect the timing controller board 105 and the main board 109 through an opening in the center of the rotation shaft of the panel roller 143 .

The first wire electrode 307 and the second wire electrode 309 may be positioned on opposite sides of the timing controller board 105 . The opening through which the first wiring electrode 307 and the second wiring electrode 309 pass may also be located on opposite sides of each other.

In the display device according to the present invention, the timing controller board 105 is mounted on the panel roller 143 , and the power supply 107 and the main board 109 may be positioned on opposite sides with respect to the display panel. Accordingly, there is an advantage that the space inside the housing 30 can be considerably saved.

7 to 31 are diagrams illustrating a display device according to an embodiment of the present invention.

Referring to FIG. 7 , the display device according to the present invention may include a panel roller 143 , a motor assembly 137 , and a support part 73 inside the housing 30 .

The panel roller 143 may be positioned in front of the portion from which the display unit 20 of the housing 30 elevates. The panel roller 143 may simultaneously wind the display panel 10 and the module cover 15 . Since the module cover 15 is thick, the diameter of the panel roller 143 may be very large when changing from the second state to the first state. Accordingly, the panel roller 143 may be spaced apart from each surface of the housing 30 by a predetermined distance or more.

The support part 73 may be located at a portion where the display unit 20 moves up and down. The support part 73 may function to support the display panel 10 and the module cover 15 so as to rise or fall. In detail, although not shown, the support 73 may raise or lower the upper bar coupled to the module cover 15 and the upper portion of the display panel 10 . A detailed driving method of the support part 73 will be described later.

Since only the upper part of the module cover 15 and the display panel 10 is connected to the upper bar, other parts may be easily bent. Accordingly, the support 73 may support the module cover 15 from the rear surface of the module cover 15 so as not to bend. Since the support part 73 continues to move when changing from the first state to the second state, it is not coupled to the module cover 15 but can support the module cover 15 .

The motor assembly 137 may be positioned at a portion to which the support 73 is connected. The motor assembly 137 may drive the support part 73 to rise or fall. The motor assembly 137 may receive an electrical signal and convert it into a physical force. The motor assembly 137 may change from the first state to the second state by transferring rotational energy to the support 73 . A detailed structure and driving principle of the motor assembly 137 will be described later.

In the display device according to the present invention, the display panel 10 and the module cover 15 can be simultaneously wound with one roller. Accordingly, the thickness of the housing 30 is reduced so that the user can better appreciate the screen.

Referring to FIG. 8 , the module cover 15 may include a plurality of aprons. The apron may be rectangular in shape. Each apron may be attached to the rear surface of the display panel 10 spaced apart from each other. Since the module cover 15 is composed of a plurality of aprons, it can be easily deformed in shape when it is wound or unwound by a roller. The module cover 15 may include a plastic or aluminum material. Accordingly, it is possible to protect the display panel 10 from external impact.

The display panel 10 and the module cover 15 may be coupled through an adhesive layer 70 . The adhesive layer 70 may be a double-sided tape. The module cover 15 may be wound together with the display panel 10 by the adhesive layer 70 . The adhesive layer 70 may be positioned on each apron to be attached to the display panel 10 . The adhesive layer 70 may be spaced apart from each other. Accordingly, the shape of the module cover 15 may be easily deformed when the module cover 15 is wound or unwound by a roller. The thinner the width of the adhesive layer 70 in the second direction, the less the deformation of the display panel 10 with respect to an external force. have. In detail, as the width of the adhesive layer 70 is thinner in the second direction, it has better flexibility, so that transmission of an external force to the display panel 10 may be reduced.

In addition, as the width of the apron in the second direction increases, cracks may not be formed in the display panel 10 . In detail, as the width of the apron in the second direction increases, the rigidity of the apron may be improved, so that cracks may not be formed in the display panel 10 .

Accordingly, when the width of the adhesive layer 70 in the second direction is 30% or less of the width of the apron in the second direction, less external force is transmitted to the display panel 10 and the display screen may be less uneven.

In addition, when the width of the adhesive layer 70 in the second direction is 15% or more of the width of the apron in the second direction, the rigidity of the display panel 10 is improved, so that less cracks in the display panel 10 may be formed.

Also, as the width of the adhesive layer 70 increases in the third direction, deformation of the display panel 10 with respect to an external force may be less. In detail, as the width of the adhesive layer 70 is thicker in the third direction, the flexibility is good, so that the transmission of external force to the display panel 10 may be reduced.

Also, as the width of the apron in the third direction decreases, cracks may not be formed in the display panel 10 . In detail, as the width of the apron in the third direction decreases, the rigidity of the apron is improved, so that cracks may not be formed in the display panel 10 .

Accordingly, when the width of the adhesive layer 70 in the third direction is 3% or more of the width of the apron in the third direction, less external force is transmitted to the display panel 10 , so that the display screen may be less uneven.

In addition, when the width of the adhesive layer 70 in the third direction is 6% or less of the width of the apron in the third direction, the rigidity of the display panel 10 is improved, so that the cracks of the display panel 10 may be reduced.

In the display device according to the present invention, the module cover 15 includes a plurality of aprons, and the adhesive layer 70 may be positioned on each apron. Accordingly, when wound on the roller, the shape can be more easily deformed than when the module cover 15 is configured as one.

Referring to FIG. 9 , in the display device according to another embodiment of the present invention, each apron may have a parallelogram shape. That is, it means that the apron has a rectangular shape inclined in one direction. Since the apron has a parallelogram shape, the display panel may not be bent in a direction opposite to the winding direction. Accordingly, the display panel may maintain a flat state in the second state.

When an external force is applied to the apron in the direction 351 opposite to the winding direction, the respective aprons may come into contact with each other and may not rotate any more. Accordingly, the display panel may maintain a flat state.

On the other hand, when an external force is applied to the apron in the winding direction 353 , the surfaces of the aprons do not come into contact with each other, so they can rotate freely. Accordingly, the display panel can be easily wound.

In the display device according to the present invention, the apron may rotate in only one direction. Accordingly, even when an external force is applied to the display panel, the screen may not be bent.

Referring to FIG. 10 , in the display device according to the present invention, the module cover 15 and the display panel 10 may be fastened to the upper bar 75 . In detail, the module cover 15 and the display panel 10 may be fastened to the upper bar 75 by at least one screw 115 .

The at least one screw 115 enables the module cover 15 and the display panel 10 to be lifted together without being separated according to the elevation of the upper bar 75 . At least one screw 115 may fasten the upper bar 75 and the module cover 15 , and at least another screw 115 may fasten the upper bar 75 and the display panel 10 . However, the present invention is not limited thereto, and at least one screw 115 may fasten the module cover 15 and the display panel 10 together.

For the module cover 15 to be coupled to the upper bar 75 , the shape of the upper module cover 15t may be different from that of other parts. The upper module cover 15t may be an apron located at the top. In detail, the shape of the uppermost apron may be different from the shape of other aprons. At least a portion of the upper module cover 15t may have a different thickness in the third direction. A portion of the upper module cover 15t having a different thickness may be inserted into the groove of the upper bar 75 .

A portion of the upper module cover 15t having a different thickness may be coupled to the upper bar 75 through at least one screw 115 . Since the upper module cover 15t is inserted into the upper bar 75 , the module cover 15 can be more strongly fastened to the upper bar 75 .

As shown in (b) of FIG. 10 , the top case 167 may cover the upper bar 75 , the module cover 15 , and the display panel 10 . The top case 167 may shield both sides and upper regions of the upper bar 75 , the module cover 15 , and the display panel 10 . At least one screw 115 may fasten the top case 167 together with the upper bar 75 , the module cover 15 , and the display panel 10 . However, the present invention is not limited thereto, and the top case 167 may be fitted into the grooves in the upper bar 75 , the module cover 15 , and the display panel 10 .

In the display device according to the present invention, the upper bar 75 , the module cover 15 , and the display panel 10 may be coupled to each other. Accordingly, the module cover 15 and the display panel 10 can be easily moved up and down without being separated.

In addition, the top case 167 may cover the upper bar 75 , the module cover 15 , and the display panel 10 . Accordingly, users may feel cleaner in appearance.

Referring to FIG. 11 , the display device according to the present invention may have a shape in which support parts 73 support both sides of the upper bar 75 . The upper bar 75 may be raised and lowered by the support 73 . The support 73 may include an upper link 73a and a lower link 73b.

The upper link 73a and the lower link 73b may be connected by a hinge 152 . One end of the upper link 73a is fastened to the upper bar 75 and the other end is fastened to the hinge 152 , and one end of the lower link 73b is fastened to the motor assembly and the other end to the hinge 152 . can be contracted.

A guide bar 234 may be positioned at an inlet through which the support 73 ascends and descends into the housing. The guide bar 234 may include first and second guide bars 234a and 234b. The first and second guide bars 234a and 234b may face each other with respect to the support part 73 . For example, the first guide bar 234a may be positioned in front of the support part 73 , and the second guide bar 234b may be positioned in the rear of the support part 73 .

A panel roller 143 may be positioned at the lower front end of the support 73 . At least one bracket 221 may be positioned on the panel roller 143 at a corresponding portion of the bottom surface of the housing. That is, at least one bracket 221 may be located under the panel roller 143 . At least one bracket 221 may be spaced apart from each other. At least one bracket 221 may be fixed to the bottom surface of the housing through a screw.

In the display device according to the present invention, various driving structures may be located therein. Accordingly, even when the display panel is raised and lowered by the roller, the risk of failure may be reduced.

Referring to FIG. 12 , the first guide bar 234a may guide the display panel 10 and the module cover 15 wound around the panel roller 143 to the elevating part of the housing 30 . Accordingly, the display panel 10 and the module cover 15 can be moved up and down at a desired position even if the panel roller 143 is not positioned at a portion corresponding to the lifted portion. The display panel 10 and the module cover 15 may be in contact with the first guide bar 234a at the entrance part of the housing 30 in both the first state and the second state. Accordingly, in any case, the display panel 10 and the module cover 15 can be raised and lowered at the same position.

A bracket 221 may be positioned on the lower surface of the panel roller 143 . The surface of the bracket 221 facing the panel roller 143 may be recessed inward. The bracket 221 may guide the display panel 10 and the module cover 15 wound around the panel roller 143 not to be dragged on the bottom surface of the housing 30 . Accordingly, the diameter BD of the recessed portion of the bracket 221 may be greater than the diameter RD of the panel roller 143 . If the diameter BD of the recessed portion of the bracket 221 is larger than the diameter RD of the panel roller 143 , the display panel 10 and the module cover 15 come out of the bracket 221 and the housing 30 . can be attracted to the bottom surface of The bracket 221 may include a rubber or plastic material to prevent damage caused by friction between the display panel 10 and the module cover 15 .

Referring to FIG. 13 , as shown in FIG. 13A , when the bracket 221 is not positioned, when the display panel 10 and the module cover 15 are released from the panel roller 143 , the display The panel 10 and the module cover 15 may be attracted to the bottom surface of the housing 30 . Accordingly, cracks may be formed in the display panel 10 or the module cover 15 . In addition, the display panel 10 and the module cover 15 may not be wound freely.

On the other hand, as shown in (b) of FIG. 13 , when the bracket 221 is positioned under the panel roller 143 , the display panel 10 and the module cover 15 are released from the panel roller 143 . may be in contact with the bracket 221 . Since the recessed portion of the bracket 221 has a semicircular shape, the shape in which the display panel 10 and the module cover 15 are wound can be maintained. In addition, it is possible to prevent the display panel 10 and the module cover 15 from being damaged by rubbing against the housing 30 .

Referring to FIG. 14 , in the display device according to the present invention, the upper bar 75 may rise as it changes from the first state to the second state. The upper bar 75 can be lifted up and down as the support parts 73 located at both ends push it.

As illustrated in (a) of FIG. 14 , the angle HLA between the upper link 73a and the lower link 73b in the first state may be very small. Accordingly, the upper bar 75 may not rise. In addition, the display panel and the module cover may be wound around the panel roller.

14B , as the motor assembly 137 rotates, the angle HLA between the upper link 73a and the lower link 73b may increase. As the angle HLA between the upper link 73a and the lower link 73b increases, the upper bar 75 may rise. Accordingly, the display panel and the module cover wound around the panel roller may be gradually released.

As shown in (c) of FIG. 14 , in the second state, the upper link 73a and the lower link 73b may be positioned side by side in a straight line. That is, the angle HLA between the upper link 73a and the lower link 73b may be 180 degrees. Accordingly, the upper bar 75 may rise the highest. Also, the display panel and module cover can be released from the panel roller.

Referring to FIG. 15 , in the display device according to the present invention, a stand fixing part 315 and a stand 317 may be positioned at the rear of the motor assembly 137 .

The stand fixing part 315 may be positioned at a portion corresponding to the motor assembly to shield the motor assembly 137 . The stand fixing part 315 may be fastened to the motor assembly 137 and the housing 30 so that the stand 317 is fixed to the housing 30 .

Since the stand fixing part 315 and the stand 317 are positioned at a portion corresponding to the motor assembly, they may be positioned on both sides of the display device.

The stand 317 may be exposed to the outside by being connected to the stand fixing unit 315 . The stand 317 may be in the shape of a pillar extending in one direction. The stands 317 positioned on both sides of the display device may function as legs of the display device. That is, the stand 317 may function to support the display device.

The stand 317 may rotate about the stand fixing part 315 as an axis. Accordingly, the user may rotate the stand 317 so that the bottom surface of the housing 30 is in contact with the ground. That is, it means that the stand 317 can be rotated so as not to contact the ground. In this case, the user may adjust the height of the display panel 10 by rotating the stand 317 according to the user's eye level.

Referring to FIG. 16 , the display device according to the present invention may include a plurality of upper links 73a and lower links 73b.

In detail, the upper link 73a may include a first upper link 73Ca and a second upper link 73Fa. Also, the lower link 73b may include a first lower link 73Cb and a second lower link 73Fb.

The first upper and lower links 73Ca and 73Cb may be positioned outside of the second upper and lower links 73Fa and 73Fb. The first upper and lower links 73Ca and 73Cb may be connected to the center of the hinge 152 , and the second upper and lower links 73Fa and 73Fb may be connected to both sides of the hinge 152 .

The first upper and lower links 73Ca and 73Cb positioned inside the hinge 152 may have a gear shape in which they correspond to each other. The hinge 152 may fix the first upper link 73Ca and the first lower link 73Cb so that the gears facing each other of the first upper and lower links 73Ca and 73Cb are meshed with each other.

The angle HRA1 of the first upper link 73Ca from the ground and the angle HRA2 of the first lower link 73Cb from the ground are the gears at which the first upper link 73Ca and the first lower link 73Cb mesh with each other. Because of the shape, it can be the same. Also, the angle between the first upper link 73Ca and the first lower link 73Cb on both sides may be the same because the first upper link 73Ca and the first lower link 73Cb have a gear shape meshing with each other. . Accordingly, both sides of the upper bar 75 can be raised or lowered to the same height without being twisted. That is, the angle between the first upper link 73Ca and the first lower link 73Cb on both sides is the same regardless of the state of the display panel.

The second upper and lower links 73Fa and 73Fb may support the first upper and lower links 73Ca and 73Cb from the inside. Accordingly, the second upper and lower links 73Fa and 73Fb may not include a gear shape. The angle between the second upper link 73Fa and the second lower link 73Fb may be the same as the angle between the first upper link 73Ca and the first lower link 73Cb.

Referring to FIG. 17 , as shown in FIG. 17A , in the display device according to the present invention, upper and lower links 73a and 73b may be configured as one link. Accordingly, when an external force F is applied to one side, the angle HLA between the upper and lower links 73a and 73b of one side may be distorted. Accordingly, the angle HLA between the upper and lower links 73a and 73b on both sides may be different from each other. In this case, the display panel may be biased to one side.

On the other hand, as shown in (b) of FIG. 17 , in the display device according to the present invention, even when an external force F is applied to one side, the second phase and lower links 73Fa and 73Fb are the first phase and lower links. (73Ca, 73Cb) can be supported. Accordingly, the angle HLA between the upper and lower links 73a and 73b may not change. In this case, since the display panel is not biased, the user can focus more on the display screen. In addition, it is possible to prevent damage due to deflection of the display panel.

Referring to FIG. 18 , in the display device according to the present invention, one side of the first upper and lower links 73Ca and 73Cb may extend in a direction toward the second upper and lower links 73Fa and 73Fb. That is, when viewed from the front, the first upper and lower links 73Ca and 73Cb may have a greater width. Accordingly, the first upper and lower links 73Ca and 73Cb may shield the second upper and lower links 73Fa and 73Fb from the front side.

The first upper and lower links 73Ca and 73Cb may be positioned at different heights from those of the second upper and lower links 73Fa and 73Fb. In detail, the rotation axes of the first upper and lower links 73Ca and 73Cb may be located at different heights from the rotation axes of the second upper and lower links 73Fa and 73Fb in the third direction. Accordingly, even if one side of the first upper and lower links 73Ca and 73Cb extends in a direction toward the second upper and lower links 73Fa and 73Fb, they may not contact each other.

Although not shown, one side of the second upper and lower links 73Fa and 73Fb may also extend in a direction toward the first upper and lower links 73Ca and 73Cb. That is, when viewed from the rear, the second upper and lower links 73Fa and 73Fb may have a greater width. Accordingly, the second upper and lower links 73Fa and 73Fb may shield the first upper and lower links 73Ca and 73Cb from the front side.

Referring to FIG. 19 , as shown in FIG. 19A , in the first state, at least a portion of the width of the first phase and lower links 73Ca and 73Cb is the second phase and lower links 73Fa and 73Fb. can be overlapped with For example, the first upper and lower links 73Ca and 73Cb may be spaced apart from the second upper and lower links 73Fa and 73Fb by a predetermined distance SLD to overlap the second upper and lower links 73Fa and 73Fb. have. Accordingly, the width HLW of the entire upper link 73a may be greater than the width CLW of the second upper link 73Fa or the first upper link 73Ca.

Alternatively, as shown in (b) of FIG. 19 , in the second state, the entire width of the first upper and lower links 73Ca and 73Cb may overlap with the second upper and lower links 73Fa and 73Fb. . Accordingly, the width HLW of the entire upper link 73a may be equal to the width CLW of the second upper link 73Fa or the first upper link 73Ca.

Referring to FIG. 20 , as shown in FIG. 20A , when one side of the first upper link 73Ca does not extend, the first upper link 73Ca changes from the second state to the first state. Accordingly, the first upper link 73Ca and the second upper link 73Fa may be spaced apart by a predetermined distance LD. As the first state changes, the distance LD between the first upper link 73Ca and the second upper link 73Fa may increase.

In this case, when changing from the first state to the second state, there is a problem that the user's hand may be pinched between the first upper link 73Ca and the second upper link 73Fa and may be injured.

On the other hand, as shown in (b) of FIG. 20 , when one side of the first upper link 73Ca extends and overlaps with the second upper link 73Fa, the first upper link 73Ca is in the second state. Even if it changes to the first state, the gap between the first upper link 73Ca and the second upper link 73Fa may not be exposed. Accordingly, even when changing from the first state to the second state, it is possible to prevent the risk of the user's hand being caught between the first upper link 73Ca and the second upper link 73Fa.

Referring to FIG. 21 , the motor assembly 137 may include a motor 138 and a reducer 139 .

The motor 138 may receive an electrical signal and convert it into a physical force. The motor 138 may transmit rotational energy to the reducer 139 . The motor 138 may be fixed to the bottom surfaces of both sides of the housing 30 .

The reducer 139 may have a shape engaged with the motor 138 . The reducer 139 may be covered with a cover different from the motor 138 . Since the reducer 139 is covered with a cover different from the motor 138, unnecessary interference with each other may not occur. However, the present invention is not limited thereto, and the reducer 139 may be covered by one cover like the motor 138 .

The reducer 139 may rotate in the first direction when the motor 130 rotates in the first direction, and rotate in the second direction when the motor 130 rotates in the second direction. The reducer 139 may significantly transmit rotational energy while reducing the rotational speed transmitted from the motor 130 .

The lower link 73b connected to the reducer 139 may have a larger angle from the ground when the speed reducer rotates in the first direction, and a smaller angle from the ground when the lower link 73b rotates in a second direction opposite to the first direction.

Referring to FIG. 22 , the display device according to the present invention may push the lower link 73b through the transmission unit 126 connected to the auxiliary link 191 . The auxiliary link 191 may include a fastening part 151 , a pillar part 153 , and a spring part 179 .

The transmission unit 126 may have one end connected to the lower end of the first lower link 73Cb to push the first lower link 73Cb. The transfer unit 126 may transfer the energy transferred from the auxiliary link 191 to the first lower link 73Cb. The other end of the transfer unit 126 may be connected to the fastening unit 151 of the auxiliary link 191 .

A guide wheel 241 may be positioned at a portion where the transmission unit 126 and the auxiliary link 191 are connected. When changing from the first state to the second state, the guide wheel 241 may guide the transfer unit 126 and the auxiliary link 191 not to be misaligned in the third direction. Since the guide wheel 241 guides the transmission unit 126 and the auxiliary link 191 not to be twisted in the third direction, the force of the auxiliary link 191 can be accurately transmitted to the first lower link 73Cb. .

The coupling part 151 may be a part coupling the auxiliary link 191 and the transmission part 126 . The fastening unit 151 may transmit an elastic force to the transmitting unit 126 .

The spring part 179 may press the fastening part 151 . The spring portion 179 may be compressed when the lower link 73b is lowered and relaxed when the lower link 73b is raised. Accordingly, when the lower link 73b rises, a force can be applied by the elastic force.

The pillar part 153 may shield at least a portion of the fastening part 151 and the spring part 179 . Accordingly, when the spring part 179 is relaxed by the elastic force, it is possible to apply a force to the fastening part 151 without being separated.

In the display device according to the present invention, the auxiliary link 191 may press the lower link 73b by an elastic force. Accordingly, the raising of the upper bar 75 can be made easier.

Referring to FIG. 23 , as the guide wheel 241 changes from the first state to the second state, it may move on the guide rail 372 . The guide rail 372 has a center recessed inward, and the guide wheel 241 is inserted into the recessed portion of the guide rail 372 to move.

As shown in (a) of FIG. 23 , in the first state, most of the fastening part 151 may be located inside the pillar part 153 . That is, it means that the spring part is compressed. Since the fastening part 151 does not press the delivery part 126 , the delivery part 126 may have a small angle from the ground. The guide wheel 241 may be positioned at a portion adjacent to the pillar part 153 of the guide rail 372 .

As shown in (b) of FIG. 23 , when changing from the first state to the second state, the fastening part 151 may be exposed from the pillar part 153 . That is, it means that the fastening part 151 can press the delivery part 126 . In this case, the spring part may gradually relax and transmit the elastic force. Since the fastening part 151 presses the delivery part 126, the angle of the delivery part 126 from the ground may gradually increase. The guide wheel 241 may be located at the center of the guide rail 372 .

As shown in (c) of FIG. 23 , in the second state, most of the fastening part 151 may be exposed outside the pillar part 153 . That is, it means that the spring part is relaxed. Since the fastening part 151 presses the delivery part 126, the delivery part 126 may have a large angle from the ground. The guide wheel 241 may be positioned at a portion adjacent to the lower link 73b of the guide rail 372 .

In the display device according to the present invention, the guide wheel 241 may move along the guide rail 372 and press the lower link 73b. Accordingly, the elastic force of the spring portion can be transmitted more easily and accurately.

Referring to FIG. 24 , the spring part 179 may include first to third springs 179a-179c. At least one of the first to third springs 179a - 179c may have different spring constants. For example, the third spring 179c may have a higher spring constant than the first and second springs 179a and 179b. That is, it means that the third spring 179c may take more force to deform than the first and second springs 179a and 179b. The first to third springs may be separated from each other by the side supporter 182 and the main supporter 184 .

The side supporter 182 may include first and second side supporters 182a and 182b. The first side supporter 182a may be located at one end of the first spring 179a, and the second side supporter 182b may be located at the other end of the third spring 179c. The protruding portions of the first and second side supporters 182a may be fitted to the first and third springs 179a and 179c.

The main supporter 184 may include first and second main supporters 182a and 182b. The first main supporter 182a may be positioned between the first spring 179a and the second spring 179b.

Both sides of the first and second main supporters 182a and 182b may protrude. The protruding portion of the first main supporter 182a may be coupled to the other end of the first spring 179a and one end of the second spring 179b. Also, the protruding portion of the second main supporter 182b may be fitted into the other end of the second spring 179b and one end of the third spring 179c.

Displacement sections of the first to third springs 179a - 179c may be limited by the side supporter 182 and the main supporter 184 . That is, the first to third springs 179a - 179c mean that the compression amount can be limited by the side supporter 182 and the main supporter 184 .

In the display device according to the present invention, the spring unit 179 may be composed of a plurality of springs having different spring constants. Accordingly, a balance with the nonlinear force required when the support part is raised or lowered may be balanced.

25 and 26 , in the second state, the spring part 179 may be in a relaxed state. Accordingly, the spring part 179 may have a first length SD1 . The first length SD1 may be a state in which the spring part 179 is maximally extended. The extended spring part 179 may press the fastening part 151 to transmit force to the support part 73 .

When changing from the second state to the first state, the angle of the lower link 73b from the ground decreases and the transmission unit 126 can be pressed toward the center. Accordingly, force is transmitted to the fastening part 151 so that the fastening part 151 may compress the spring part 179 . The spring part 179 may have a compressed second length SD2 than the first length SD1 in the second state.

The spring part 179 may not be exposed to the outside of the pillar part 153 when it is in the second state. That is, it means that the spring part 179 is not exposed to the outside of the pillar part 153 in any state. Since the spring part 179 is not exposed to the outside of the pillar part 153 , it can press the lower link 73b without being separated from the pillar part 153 . In addition, since the spring part 179 is not exposed to the outside of the pillar part 153 , the elastic force is not dispersed, and the user can recognize that the appearance is neat.

Referring to FIG. 27, when the side supporter 182 and the main supporter 184 are not positioned between the first to third springs 179a-179c, as shown in FIG. 27(a), the first state The first and second springs 179a and 179b having a small spring constant in , may be excessively compressed. In addition, the third spring 179c having a large spring constant in the first state may have a relatively small amount of compression.

In this case, the first and second springs 179a and 179b may be plastically deformed due to excessive compression. Also, the compression amount of the third spring 179c may be relatively small. When changing from the first state to the second state due to the plastic deformation of the first and second springs 179a and 179b, the lengths of the first and second springs 179a and 179b may not relax to their original state. That is, the length of the first and second springs 179a and 179b may be shorter than the length before plastic deformation by a predetermined distance SDD. Accordingly, the spring portion 179 does not press the coupling portion 151 , so that the lower link 73b may not rise.

On the other hand, when the side supporter 182 and the main supporter 184 are positioned between the first to third springs 179a-179c as shown in FIG. The compression amount of the three springs 179a-179c may be limited by the side supporter 182 and the main supporter 184 . That is, it means that the first and second springs 179a and 179b may not be compressed over a certain length. Accordingly, even if the first and second springs 179a and 179b are compressed, plastic deformation may not occur. Also, compression may not be concentrated on the first and second springs 179a and 179b. Accordingly, the length of the spring portion 179 may be shorter when the side supporter 182 and the main supporter 184 are present.

The first and second springs 179a and 179b may not be plastically deformed by the side supporter 182 and the main supporter 184 . Accordingly, when changing from the first state to the second state, the lengths of the first and second springs 179a and 179b may be returned to their original state. Accordingly, the spring portion 179 may normally press the coupling portion 151 to raise the lower link 73b.

In the display device according to the present invention, the side supporter 182 and the main supporter 184 may be positioned between the springs. Accordingly, the spring portion 179 is not plastically deformed, so that the force can be easily transmitted to the lower link 73b.

Referring to FIG. 28 , in the display device according to the present invention, the roller hub 278 may be positioned at a portion corresponding to the panel roller 143 on both sides of the housing. The roller hub 278 may be coupled to the central axis of the panel roller 143 . The roller hub 278 may have a wide circumferential portion so that a transmission belt 314, which will be described later, can be easily wound.

A constant spring 316 may be positioned spaced apart from the roller hub 278 . The transmission belt 314 may be wound around the constant spring 316 and the roller hub 278 . The transmission belt 314 may try to maintain a state wound around the constant spring 316 . Accordingly, when the transmission belt 314 is unwound from the constant spring 316, a force may be formed in the rewinding direction.

The constant spring 316 may be positioned below the first distance CSD in the second direction than the roller hub 278 . In this case, a greater force can be transmitted than when the constant spring 316 is positioned at the same height or above the roller hub 278 .

Referring to FIG. 29 , as shown in FIG. 29A , a first torque T1 may be applied to the panel roller 143 to wind the display panel 10 . Since the first torque T1 is weak, the rotation amount of the panel roller 143 may be relatively small compared to the length of the display panel 10 moving up and down. In this case, there is a problem that the display panel 10 may not be correctly wound while being sagged.

As shown in (b) of FIG. 29 , a second torque T2 may be applied to the panel roller 143 to wind the display panel 10 . The second torque T2 may be stronger than the first torque T1 . Accordingly, compared with the length of the display panel 10 moving up and down, the rotation amount of the panel roller 143 may be relatively identical. In this case, the display panel 10 may be accurately wound by engaging the panel roller 143 .

In the display device according to the present invention, a torque greater than or equal to a predetermined torque may be required in order for the display panel 10 to be accurately wound in engagement with the panel roller 143 . Accordingly, a device for applying a torque to the panel roller 143 must be provided.

Referring to FIG. 30 , as shown in FIG. 30A , when changing from the second state to the first state, the roller hub 278 together with the panel roller 143 moves counterclockwise in the first direction. can be rotated with The display panel 10 and the transmission belt 314 may be wound in opposite directions. Accordingly, as the display panel 10 and the roller hub 278 rotate in the first direction, the transmission belt 314 is unwound from the roller hub 278 and the display panel 10 can be wound around the panel roller 143 . have.

Since the constant spring 316 has a constant torque in the clockwise direction, it can help rotate the display panel 10 counterclockwise when it is wound around the roller hub 278 . Since the torque of the constant spring 316 assists in winding the roller hub 278, the torque may also assist when the panel roller 143 connected to the roller hub 278 is wound. Accordingly, the display panel 10 may be wound while being accurately engaged with the panel roller 143 .

Conversely, as shown in FIG. 30B, when changing from the first state to the second state, the roller hub 278 together with the panel roller 143 moves in the second direction opposite to the first direction. can rotate The display panel 10 and the transmission belt 314 may be wound in opposite directions. Accordingly, as the display panel 10 and the roller hub 278 rotate in the second direction, the transmission belt 314 is wound around the roller hub 278 and the display panel 10 is unwound from the panel roller 143 . can

Since the constant spring 316 has a constant torque in the clockwise direction, it may prevent the display panel 10 from rotating in the clockwise direction when the display panel 10 is released from the roller hub 278 . Accordingly, the force by which the support part raises the display panel 10 must be stronger than the torque of the constant spring 316 to prevent the panel roller 143 and the roller hub 278 from rotating in the second direction.

The display device according to the present invention can rapidly wind the display panel 10 by the torque of the constant spring 316 when the panel roller 143 and the roller hub 278 rotate in the first direction. Accordingly, the display panel 10 may not be struck by the panel roller 143 .

Referring to FIG. 31 , the torque change of the conventional torsion spring according to the rotation speed of the roller hub is indicated by a dotted line, and the torque change of the constant spring according to the rotation number of the roller hub is indicated by a solid line.

The torque required when the panel roller winds the display panel may not vary greatly depending on the number of rotations.

As indicated by the dotted line, in the case of a conventional torsion spring, the torque applied may increase as the number of rotations increases. Accordingly, unnecessary torque may be generated. In this case, another mechanism may be required to reduce unnecessary torque, and noise may increase due to the addition of another structure.

Contrary to this, as indicated by a solid line, in the case of the constant spring, the torque applied may be constant when the number of rotations is exceeded. Accordingly, since unnecessary torque is minimized, noise is low and the installation space can be minimized.

32 to 43 are diagrams illustrating a display device according to another exemplary embodiment of the present invention.

Referring to FIG. 32 , in the display device according to the present invention, the panel roller 143 may be positioned at the front of the support 73 and the apron roller 141 may be positioned at the rear. That is, the panel roller 143 and the apron roller 141 may face each other from the opposite side with respect to the support part 73 .

The panel roller 143 may wind the display panel 10 , and the apron roller 141 may wind the module cover 15 . In this case, since the display panel 10 and the module cover 15 are wound on different rollers, they may not be attached by an adhesive layer.

Since the module cover 15 is thicker than the display panel 10 , it may occupy a large amount of space inside the housing 30 . Accordingly, the motor assembly 137 may be positioned in front of the support part 73 so as not to interfere with the winding of the module cover 15 . However, the present invention is not limited thereto, and the motor assembly 137 may be located at the rear of the support part 73 .

Since the display panel 10 and the module cover 15 are separated and wound inside the housing 30 , the winding force of the panel roller 143 and the apron roller 141 is the difference between the display panel 10 and the module cover 15 . It may be greater than the adhesive force.

In the present invention, the display panel 10 and the module cover 15 may be wound by two rollers. Accordingly, a smaller weight is wound on one roller to prevent the display panel 10 and the module cover 15 from sagging.

Referring to FIG. 33 , in the display device according to the present invention, the panel roller 143 and the apron roller 141 may be located on the same side. For example, the panel roller 143 and the apron roller 141 may be located at the rear of the support 73 . However, the present invention is not limited thereto, and the panel roller 143 and the apron roller 141 may be located in front of the support part 73 .

The apron roller 141 may be located under the panel roller 143 . Since the module cover 15 is thick, the diameter of the apron roller 141 may be very large when changing from the second state to the first state. Accordingly, the apron roller 141 may be spaced apart by more than the first gap PGD so as not to contact the panel roller 143 . The first gap PGD may be greater than or equal to a distance that may not come into contact with the panel roller 143 when the apron roller 141 is in the first state.

A guide roller 145 may be positioned on a line on which the apron roller 141 is spread. The guide roller 145 may guide the position of the module cover 15 so as not to contact the panel roller 143 when the module cover 15 is in at least one of the first state and the second state. The guide roller 145 may be positioned under the panel roller 143 to prevent the module cover 15 from coming into contact with the panel roller 143 .

In the display device according to the present invention, the panel roller 143 and the apron roller 141 may be located at upper and lower portions on the same side. Accordingly, it is possible to save space than when the panel roller 143 and the apron roller 141 are located on the other side.

Referring to FIG. 34 , in the display device according to the present invention, a pressure roller 147 may be positioned instead of a guide roller. The pressure roller 147 may press the module cover 15 to be in contact with the support part 73 . Accordingly, the module cover 15 can be maintained in a flat state without being bent. The pressure roller 147 may be positioned adjacent to the support part 73 in the third direction so that the module cover 15 is in contact with the support part 73 . The pressure roller 147 may also function to guide the module cover 15 so that the module cover 15 and the panel roller 143 do not come into contact with each other.

In the display device according to the present invention, the pressure roller 147 may press the module cover 15 to contact the support part 73 . Accordingly, users can be more immersed in the flat display panel 10 .

Referring to FIG. 35 , in the display device according to the present invention, both the guide roller 145 and the pressure roller 147 may be positioned. Accordingly, the module cover 15 may be in contact with the support portion 73 as well as not in contact with the panel roller 143 . Accordingly, the malfunction of the display device is reduced and users can enjoy the image of the flat display panel 10 .

Referring to FIG. 36 , in the display device according to the present invention, the module cover 15 may include first to third module covers 15a-15c.

The first module cover 15a may be located in the center of the module cover 15 . The first module cover 15a may be coupled to the upper bar 75 . A detailed coupling method of the first module cover 15a will be described later. The third module cover 15c may be located at an edge of the module cover 15 . That is, it means that the third module cover 15c may be located on each side of the module cover 15c. The third module cover 15c positioned on the upper side may be coupled to the upper bar 75 .

The second module cover 15b is located at the rear of the first module cover 15a and the third module cover 15c, and may be combined with the first and third module covers 15a and 15c. The central portion of the second module cover 15b may be coupled to the first module cover 15a, and both sides of the second module cover 15b may be coupled to the third module cover 15c.

The first module cover 15a and the third module cover 15c may be spaced apart from each other. In addition, front surfaces of the first module cover 15a and the third module cover 15c may protrude a predetermined distance (LMD) from the front surfaces of the second module cover 15b. That is, it means that a space may be located between the first module cover 15a and the third module cover 15c. The support part 73 may be located in a space between the first module cover 15a and the third module cover 15c.

Although not shown, a display panel may be attached to the front surface of the module cover 15 . Accordingly, the support 73 may be shielded from the front by the display panel 10 and shielded from the rear by the second module cover 15b. The user can focus on the display screen because the supporting part 73 is not seen to be driven, and the user can feel that the appearance has become cleaner.

Referring to FIG. 37 , as shown in (a) of FIG. 37 , when the first module cover 15a is not positioned, the display panel 10 is coupled only to the third module cover 15c on both sides. can Accordingly, the center of the display panel 10 may be depressed by an external force due to a space spaced apart between the second module cover 15b and the display panel 10 .

Accordingly, the user may not be able to concentrate on the display screen due to the non-flat display panel 10 . Also, the display panel 10 may be depressed and damaged.

Alternatively, as shown in (b) of FIG. 37 , in the display device according to the present invention, the first module cover 15a may be located at the center. Both sides of the display panel 10 may be coupled to the third module cover 15c, and the central portion may be coupled to the first module cover 15a. Accordingly, the space spaced apart between the display panel 10 and the second module cover 15b may be reduced. Since the space spaced apart between the display panel 10 and the second module cover 15b is reduced, the display panel 10 may maintain a flat shape. Accordingly, the user can focus more on the display screen.

Referring to FIG. 38 , in the display device according to the present invention, third module covers 15c located on both sides of the module cover may be attached to the display panel 10 .

The third module cover 15c and the display panel 10 may be attached by a magnet 64 positioned on at least one apron. The magnet 64 may be attached using an apron and double-sided tape. The magnet 64 may be positioned on each apron to be attached to the display panel 10 . The magnets 64 may be spaced apart from each other. Accordingly, when the module cover 15 is wound or unwound by the roller, the shape can be easily deformed.

The display panel 10 may be attached to the magnet 64 . The surface of the display panel 10 in contact with the magnet 64 may include an Fe-Ni Invar alloy. Accordingly, the display panel 10 may be strongly attached to the magnet 64 .

Since the display panel 10 and the module cover 15 are attached by the magnets 64 located only on both sides of the module cover 15, a lot of the magnets 64 are not required, so manufacturing costs can be saved.

Referring to FIG. 39 , in the display device according to the present invention, the magnet 64 may be located inside a recess 117 of the third module cover 15c.

The groove 117 may be located on a surface facing the display panel 10 of the third module cover 15c. A groove 117 may be located in each apron. Since the magnet 64 is located inside the groove 117 , a surface of the apron in contact with the display panel 10 may be flat. Accordingly, the thickness of the display device may be reduced, and thus the appearance may be cleaner.

Referring to FIG. 40 , in the display device according to the present invention, the magnet 64 may be positioned on the first module cover 15a as well as the third module cover 15c. However, the present invention is not limited thereto, and a groove may be located in the first module cover 15a so that the magnet 64 may be located inside the groove.

In this case, the module cover 15 and the display panel 10 may be more strongly coupled than when the magnet 64 is positioned only on the third module cover 15c. Accordingly, even when a strong external force is applied, the display panel 10 and the module cover 15 may not be easily separated.

Referring to FIG. 41 , in the display device according to the present invention, the upper bar 75 and the module cover 15 may be coupled using at least one screw.

The upper bar 75 may be coupled to the third module cover 15c through the first hole 331 . The upper side of the third module cover 15c may surround the rear surface of the upper bar 75 . The third module cover 15c surrounding the rear surface of the upper bar 75 and the upper bar 75 may be coupled through the first hole 331 . Although the first hole 331 is not shown, the display panel 10 may also be coupled together.

The upper bar 75 may be coupled to the first module cover 15a through the second hole 333 . As described with reference to FIG. 9 , a portion having a different thickness of the apron located at the top of the first module cover 15a may be inserted into the groove of the upper bar 75 . The second hole 333 may be located below the first hole 331 . The first module cover 15a and the third module cover 15c may be coupled to the upper bar 75 by different holes. Accordingly, the module cover 15 and the upper bar 75 may be more strongly coupled.

The first module cover 15a and the third module cover 15c may be coupled to the second module cover 15b located on the rear side through the third and fourth holes 335 and 337 . The first module cover 15a engages the second module cover 15b through the third hole 335 located in each apron, and the third module cover 15c has a fourth hole 337 located in each apron. ) through the second module cover (15b) can be combined.

Since each apron is coupled with the second module cover 15b through the third and fourth holes 335 and 337, the first and third module covers 15a and the second module cover 15b are easily wound in a coupled state. can be

Referring to FIG. 42 , the upper bar 75 may include a first protrusion 75a protruding downward from the center and second protrusions 75b protruding downward at both sides. The first protrusion 75a may be a part into which the first module cover 15a is inserted, and the second protrusion 75b may be a part connected to the support part 73 . Unlike the apron of the module cover 15 , the upper bar 75 may not be wound because it is not configured in plurality. That is, the first protrusion 75a and the second protrusion 75b are also not wound.

Accordingly, the flat area of the third module cover 15c corresponding to the first and second protrusions 75a and 75b of the upper bar 75 is not wound on the apron roller 141 in the first state and maintains a flat state. can For example, the flat area of the third module cover 15c may be an area in which the apron of the uppermost layer and the apron of the lower layer are located.

Referring to FIG. 43 , in the display device according to the present invention, the hinge 152 may include a body 152a and an adhesive part 152b.

As described above, the body 152a may be a portion in which the upper link 73b and the lower link 73a are rotatably connected.

The adhesive part 152b may be connected to the body 152a. The adhesive part 152b may have a shape that protrudes from the body 152a toward the first module cover 15a. The adhesive part 152b may not come into contact with the first module cover 15a in the first state. Accordingly, the support part 73 can freely rotate without being hindered by the adhesive part 152b.

When changing from the first state to the second state, the trajectory portion 367 may be positioned on the second module cover 15b in the region where the adhesive portion 152b moves. The trajectory portion 367 may be located on a surface facing the display panel of the second module cover 15b. The trajectory portion 367 may include a magnetic material. One trajectory portion 367 has a circumferential shape from the center of the second module cover 15b in the second left direction to the upper portion in the second direction of the portion adjacent to the first module cover 15b. can The other trajectory portion 367 has a circumferential shape from the center of the second module cover 15b in the right second direction to the upper portion of the portion adjacent to the first module cover 15b in the second direction. can have

The adhesive part 152b may include a magnetic material on a surface facing the second module cover 15b. The adhesive portion 152b may include a material having a polarity different from that of the trajectory portion 367 . The adhesive part 152b may move along the trajectory part 367 while changing from the second state to the first state.

Since the adhesive portion 152b and the trajectory portion 367 include a magnetic material, the hinge 152 is attached to the second module cover 15b and can be moved during movement. Accordingly, the hinge 152 does not protrude forward in any state, so that the display panel can maintain a flat state. In addition, the trajectory portion 367 may guide a portion to which the hinge 152 is to be moved. Accordingly, the safety of the display device according to the state change may be improved.

The above detailed description should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention.

Claims (20)

housing;
at least one roller positioned within the housing;
a display unit including a display panel and a module cover; and
A motor assembly, an upper bar coupled to an upper portion of the display unit, one end connected to both ends of the upper bar, and a driving unit having the other end coupled to the motor assembly and including at least one support for elevating the upper bar,
The display panel and the module cover,
It is in any one of a first state wound around the at least one roller and a second state that is unwound from the at least one roller and is in contact with each other and exposed to the outside of the housing,
The at least one support portion,
When changing from the first state to the second state,
including first and second links driven together;
The first and second links are
first and second upper links having one side connected to both ends of the upper bar;
a hinge connected to the other side of the upper link;
One side is connected to the hinge and the other side includes first and second lower links connected to the motor assembly,
The first upper link and the first lower link,
A display device including a gear shape in which a portion connected to the hinge corresponds to and meshes with each other.
delete delete The method of claim 1,
The angle between the first and second upper links and the first and second lower links is,
The display device is changed around the hinge according to the rotation of the motor assembly.
The method of claim 1,
The distance between the first upper link and the second upper link is,
A display device that changes according to rotation of the motor assembly.
The method of claim 1,
The first link is connected to the center of the hinge,
The second link is connected to both sides of the hinge.
The method of claim 1,
The angle between the first and second upper links connected to one side of the upper bar and the first and second lower links connected to the first and second upper links is,
The same display device regardless of the state of the display panel.
The method of claim 1,
The display panel and the module cover,
A display device wound by one roller.
According to claim 1,
The first link is
A display device in which at least a portion of the width overlaps the second link.
10. The method of claim 9,
The overlapping width of the first link and the second link is changed according to rotation of the motor assembly.
The method of claim 1,
The driving unit,
a transmission unit having one side connected to the support unit;
One side is connected to the transmission unit and the other side includes an auxiliary link coupled to the housing,
The auxiliary link is
A display device including a spring for pressing the transfer unit therein.
12. The method of claim 11,
The spring part,
A display device including first to third springs.
13. The method of claim 12,
At least one of the first to third springs,
Display devices with different spring constants.
13. The method of claim 12,
The auxiliary link is
The display device further comprising a supporter positioned inside the auxiliary link and positioned between the first to third springs.
The method of claim 1,
The module cover,
A display device including a plurality of aprons, at least some of which are connected to each other.
The method of claim 1,
It is located under the at least one roller,
The display device further comprising a bracket in which a surface facing the at least one roller is recessed inward.
17. The method of claim 16,
The diameter of the recessed part of the bracket is,
A display device larger than a diameter of the at least one roller.
12. The method of claim 11,
The driving unit,
a guide wheel located at a portion where the transmission unit and the auxiliary link are connected;
The display device further comprising a guide rail positioned on the bottom of the housing and into which the guide wheel is inserted.
The method of claim 1,
The display panel and the module cover are attached through an adhesive layer.
The method of claim 1,
a roller hub coupled to the central axis of the at least one roller;
a spring shaft spaced apart from the roller hub;
The display device further comprising a constant spring wound around the spring shaft and the roller hub.

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