KR20210148650A - Display device - Google Patents

Abstract

Disclosed is a display device. The display device of the present disclosure comprises: a flexible display panel; a roller extended longitudinally, on which the display panel is wound or unwound; a base extended longitudinally in a lengthwise direction of the roller, wherein the roller is rotatably installed; and a door assembly equipped with a door installed on the base to be movable in a direction crossing the lengthwise direction of the base and covering the display panel wound on the roller. Therefore, the present invention is capable of providing the display device capable of providing power to that door that opens/closes an opening for which the display panel passes.

Description

display device {DISPLAY DEVICE}

The present disclosure relates to a display device.

As the information society develops, the demand for display devices is also increasing in various forms. Various display devices such as display) and OLED (Organic Light Emitting Diode) have been researched and used.

An OLED panel can display an image by depositing an organic material layer capable of emitting light by itself on a substrate on which a transparent electrode is formed. The OLED panel may have a thin thickness as well as flexible characteristics. OLED panels with flexible characteristics can display images while being rolled or unwrapped on a roller.

Recently, many studies have been made on structural characteristics of a display device having such flexible panels.

SUMMARY OF THE INVENTION The present disclosure aims to solve the above and other problems.

Another object may be to provide a display device capable of providing power to a door that opens and closes an opening through which the display panel passes.

Another object may be to provide a display device capable of minimizing an increase in volume due to installation of components that provide power to a door.

Another object may be to provide a display device in which the door can be uniformly moved forward and backward as a whole.

According to an aspect of the present disclosure for achieving the above or other object, a flexible display panel; a roller extending long and on which the display panel is wound or unwound; a base extending long in the longitudinal direction of the roller, the roller being rotatably installed; In addition, there is provided a display device including a door assembly installed on the base to be movable in a direction crossing the longitudinal direction of the base and including a door covering the display panel wound around the roller.

According to at least one embodiment of the present disclosure, it is possible to provide a display device capable of providing power to a door that opens and closes an opening through which a display panel passes.

According to at least one embodiment of the present disclosure, it is possible to provide a display device capable of minimizing an increase in volume due to installation of components that provide power to a door.

Another object is to provide a display device in which the door can be moved forward and backward equally as a whole.

Further scope of applicability of the present disclosure 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 disclosure are given by way of example only, since various changes and modifications within the spirit and scope of the present disclosure may be clearly understood by those skilled in the art.

1 to 52 are diagrams illustrating examples of display devices according to embodiments of the present disclosure.

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 overlapping descriptions thereof will be omitted (Description will now be given in detail according to exemplary embodiments disclosed herein, with reference to the accompanying drawings. For the sake of brief description with reference to the drawings, the same or equivalent components may be denoted by the same reference numbers, and description thereof will not be repeated.).

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 general, suffixes such as "module" and "unit" may be used to refer to elements or components. Use of such suffixes herein is merely intended to facilitate description of the specification, and the suffixes do not have any special meaning or function).

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 the present 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 In the present disclosure, that is well known to one of ordinary skill in the relevant art has generally been omitted for the sake of brevity. The accompanying drawings are used to assist in easy understanding of various technical features and it should be understood that the embodiments presented herein are not limited by the accompanying drawings. As such, the present disclosure should be construed to extend to any alterations, equivalents and substitutes in addition to those which are particularly set out in the accompanying drawings).

Terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one element from another (It will be understood that although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by These terms are only used to distinguish one element from another).

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is said that an element is "directly connected" or "directly connected" to another element, it should be understood that there is no other element in the middle (It will be understood that when an element is referred to as being "connected with" another element, there may be intervening elements present. In contrast, it will be understood that when an element is referred to as being "directly connected with" another element, there are no intervening elements present ).

A singular representation may include a plural representation unless context clearly indicates otherwise.

In the present application, terms such as “comprises” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features In the present application, it should be understood that the terms "comprises, includes," " has," etc. specify the presence of features, numbers, steps, operations, elements, components, or combinations thereof described in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof).

Referring to FIG. 1 , the display device 100 may include a display unit 20 and a housing 30 . The housing 30 may have an internal space. At least a portion of the display unit 20 may be located inside the housing 30 . At least a portion of the display unit 20 may be located outside the housing 30 . The display unit 20 may display a screen.

A direction parallel to the longitudinal direction of the housing 30 may be referred to as a first direction DR1 , a +x-axis direction, a -x-axis direction, a left direction, or a right direction. The direction in which the display unit 20 displays the screen may be referred to as the +z axis, the forward direction, or the forward direction. A direction opposite to the direction in which the display unit 20 displays the screen may be referred to as a -z axis, a rearward direction, or a rearward direction. The third direction DR3 may be parallel to the +z-axis direction or the -z-axis direction. A direction parallel to the height direction of the display device 100 may be referred to as a second direction DR2 , a +y-axis direction, a -y-axis direction, an upper direction, or a lower direction.

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. The left-right direction LR may be parallel to the first direction DR1 , and the vertical direction UD may be parallel to the second direction DR2 .

Referring to FIG. 2 , the entire display unit 20 may be located inside the housing 30 . At least a portion of the display unit 20 may be located outside the housing 30 . The extent to which the display unit 20 is exposed to the outside of the housing 30 may be adjusted as necessary.

Referring to FIG. 3 , the display unit 20 may include a display panel 10 and a plate 15 . The display panel 10 may be flexible. For example, the display panel 10 may be an organic light emitting display (OLED) panel.

The display panel 10 may have a front surface for displaying an image. The display panel 10 may have a rear surface opposite to the front surface. The front surface of the display panel 10 may be covered with a light-transmitting material. For example, the light-transmitting material may be a synthetic resin or a film.

The plate 15 may be coupled, fastened, or attached to the rear surface of the display panel 10 . The plate 15 may include a metal material. The plate 15 may be referred to as a module cover 15 , a cover 15 , a display panel cover 15 , a panel cover 15 , and an apron 15 .

Referring to FIG. 4 , the plate 15 may include a plurality of segments 15c. A magnet 64 may be positioned within a recess 118 of the segment 15c. The groove 118 may be located on a surface of the segment 15c facing the display panel 10 . A groove 118 may be located in the front of each segment 15c. Since the magnet 64 is received inside the groove 118 , the magnet 64 may not protrude out of the segment 15c. The display panel 10 may be flat without being crumpled even when it comes into contact with the segment 15c.

Referring to FIG. 5 , a plurality of magnets 64 may be positioned on the link 73 . For example, at least one magnet 64 may be positioned on the first arm 73a , and at least one magnet 64 may be positioned on the second arm 73b . The plurality of magnets 64 may be spaced apart from each other.

Referring to FIG. 6 , one magnet 64 may be positioned on each of the first arm 73a and the second arm 73b. The magnet 64 may have a shape extending long in the long side direction of the first arm 73a and the second arm 73b. Since the magnet 64 is elongated in the long side direction of the first arm 73a and the second arm 73b, the area of the portion where the link 73 is in close contact with the display panel and the module cover may be increased. Accordingly, the adhesion between the link 73 and the display panel and the module cover can be strong.

Referring to FIG. 7 , the magnet 64 may be positioned in the depression 321 formed on the link 73 . The recessed part 321 may have a shape recessed inward of the link 73 . The magnet 64 may be coupled to the link 73 through at least one screw 187 .

A width LHW at which the depression 321 is recessed inward of the link 73 may be equal to or greater than a thickness MGW of the magnet 64 . If the thickness MGW of the magnet 64 is greater than the width LHW of the depression 321 , the display panel 10 and the module cover 15 may not be in close contact with the link 73 . In this case, the display panel 10 may be crumpled or not flat.

A panel protection unit 97 may be positioned on the rear side of the display panel 10 . The panel protection unit 97 may prevent the display panel 10 from being damaged due to friction with the module cover 15 . The panel protection part 97 may include a metal material. The panel protection part 97 may have a very thin thickness. For example, the panel protection part 97 may have a thickness of about 0.1 mm.

Since the panel protection part 97 includes a metal material, mutual attraction with the magnet 64 may act. Accordingly, the module cover 15 located between the panel protection part 97 and the link 73 may be in close contact with the magnet 64 even if it does not include a metal material.

Referring to FIG. 8 , the module cover 15 may be in close contact with the link 73 by the upper bar 75 at the upper side and the guide bar 234 at the lower side (refer to FIG. 15 ). A portion of the link 73 between the upper bar 75 and the guide bar 234 may not be in close contact with the module cover 15 . Alternatively, the central portion of the link 73 may not be in close contact with the module cover 15 . The center of the link 73 may be near the arm joint 152 . In this case, the distance between the module cover 15 and the link 73 (APRD1, APLD2) may not be constant. In this case, the display panel 10 may be bent or bent.

9, when the magnet 64 is positioned on the depression 321 of the link 73, the magnet 64 attracts the panel protection part 97, so the module cover 15 is also a magnet at the same time. (64) can be adhered to. That is, the central portion of the link 73 may be in close contact with the module cover 15 .

Referring to FIG. 10 , a bead 136 may be formed on the upper surface of the segment 15b. The bead 136 may have a shape recessed into the inside of the segment 15b. The bead 136 may have a shape recessed in the -y-axis direction. For example, the bead 136 may be formed by pressing the segment 15b. A plurality of beads 136 may be formed on segment 15b. The plurality of beads 136 may be spaced apart from each other. The bead 136 may improve the stiffness of the segment 15b. The bead 136 may prevent the shape of the segment 15b from being deformed from an external impact. The segment 15b may be fixed to the rear of the display panel 10 by an adhesive member 70 . A panel protection part 97 (refer to FIG. 8 ) may be positioned between the adhesive member 70 and the display panel 10 . For example, the adhesive member 70 may be a double-sided tape.

Referring to FIG. 11 , the source PCB 120 may be positioned above the module cover 15 . When the source PCB 120 is rolled up or rolled down, the position may change with the movement of the module cover 15 . The FFC cable 231 may be located in the center of the module cover 15 with respect to the first direction. The FFC cable 231 may be located at both ends of the module cover 15 with respect to the first direction.

Referring to FIG. 12 , the segment 15d may include a depression 425 that is depressed in the -z-axis direction. The recessed part 425 is a space between the display panel 10 and the module cover 15 .

can be formed The FFC cable 231 may be accommodated in a space formed by the depression 425 . In addition, the depression 425 may improve the rigidity of the segment 15d.

The bead 136 may be located on the segment 15d except for the portion where the depression 425 is located. The bead 136 may not be located in the portion where the depression 425 is located because the thickness of the segment 15d in the third direction decreases.

Referring to FIG. 13 , a through portion 437 may be positioned at the center of the segment 15e in the first direction. The penetrating portion 437 may penetrate the central portion of the segment 15e in the second direction. That is, the through portion 437 may be a hole located in the segment 15e. The through portion 437 may be a portion in which the FFC cable 231 is positioned. Since the through portion 437 is formed in the segment 15e, the thickness of the segment 15e may be reduced compared to that of the FFC cable 231 positioned in the recessed portion 425 .

The bead 136 may be located on the segment 15e except for the portion where the through portion 437 is located. The bead 136 may not be located in the portion where the through portion 437 is located because the thickness of the segment 15e in the third direction becomes thinner.

Referring to FIG. 14 , the top case 167 may cover the display panel 10 and the module cover 15 as well as the source PCB 120 and the upper bar 75 . One side of the upper bar 75 may be coupled to the rear surface of the module cover 15 , and the other side may be coupled to the source PCB 120 . The upper bar 75 may be fixed to the module cover 15 to support the source PCB 120 .

The lower end of the FFC cable 231 may be connected to the timing controller board 105 (refer to FIG. 15 ) inside the panel roller 143 (refer to FIG. 15 ). The FFC cable 231 may be wound or unwound on the panel roller 143 together with the display unit 20 .

A portion of the FFC cable 231 may be positioned between the display panel 10 and the module cover 15 . A portion of the FFC cable 231 positioned between the display panel 10 and the module cover 15 may be referred to as a first portion 231a. The first portion 231a may be positioned in the depression 425 formed by the plurality of segments 15d. Alternatively, the first portion 231a may be accommodated in the depression 425 formed by the plurality of segments 15d.

A portion of the FFC cable 231 may pass through the segment 15f. A portion of the FFC cable 231 passing through the segment 15f may be referred to as a second portion 231b. The segment 15f may include a first hole 521a formed on the front surface and a second hole 521b formed on the rear surface. The first hole 521a and the second hole 521b may be interconnected to form one hole 521 . The hole 521 may penetrate the segment 15f in the third direction. The second portion 231b may pass through the hole 521 . The hole 521 may be referred to as a connection hole 521 .

An upper end of the FFC cable 231 may be electrically connected to the source PCB 120 . A part of the FFC cable 231 may be located on the rear side of the module cover 15 . A portion of the FFC cable 231 located on the rear surface of the module cover 15 may be referred to as a third portion 231c. The third portion 231c may be electrically connected to the source PCB 120 .

The third portion 231c may be covered by the top case 167 . Accordingly, the third portion 231c may not be exposed to the outside.

Referring to FIG. 15 , the roller 143 on which the display unit 20 is wound may be installed on the first base 31 . The first base 31 may be a bottom surface of the housing 30 . The roller 143 may extend long in the longitudinal direction of the housing 30 . The first base 31 may be connected to the side surface 30a of the housing 30 .

16 and 17 , the beam 31a may be formed on the first base 31 . The beam 31a may improve the bending or torsional rigidity of the first base 31 . Many parts may be installed on the first base 31 , and the first base 31 may receive a large load. Since the first base 31 has improved rigidity, sagging due to a load may be prevented. For example, the beam 31a may be formed by a pressing process.

The second base 32 may be spaced apart from the upper side of the first base 31 . A space S1 may be formed in the first base 31 and the second base 32 . The roller 143 on which the display unit 20 is wound may be accommodated in the space S1 . The roller 143 may be positioned between the first base 31 and the second base 32 .

The second base 32 may be connected to the side surface 30a of the housing 30 . The bracket 33 may be fastened to the upper surface of the first base 31 . The bracket 33 may be fastened to the side surface 30a of the housing 30 .

The beam 32a may be formed on the second base 32 . The beam 32a may improve the bending or torsional rigidity of the second base 32 . For example, the beam 32a may be formed by a press process.

The third part 32d may be connected to the first part 32b and the second part 32c. The fourth part 32e may be connected to the first part 32b and the second part 32c. A space S2 may be formed between the third part 32d and the fourth part 32e. Accordingly, the bending or torsional rigidity of the second base 32 may be improved. The third part 32d may be referred to as a reinforcing rib 32d or a rib 32d. The fourth part 32e may be referred to as a reinforcing rib 32e or a rib 32e.

Many parts may be installed on the second base 32 , and the second base 32 may receive a large load. Since the second base 32 has improved rigidity, sagging due to a load may be prevented.

The first reinforcing plate 34 may be positioned between the first base 31 and the second base 32 . The first reinforcing plate 34 and the second base 32 may be fastened by screws. The first reinforcing plate 34 may support the second base 32 . The first reinforcing plate 34 may prevent the second base 32 from sagging. The first reinforcing plate 34 may be positioned at a central portion of the first base 31 or a central portion of the second base 32 . The first reinforcing plate 34 may include a curved portion 34a. The curved portion 34a may be formed along the roller 143 . The curved portion 34a may not come into contact with the roller 143 or the display unit 20 wound around the roller 143 . The curved portion 34a may maintain a predetermined distance from the roller 143 so as not to interfere with the rotation of the roller 143 .

The second reinforcing plate 35 may be fastened to the first base 31 and the first reinforcing plate 34 . The second reinforcing plate 35 may support the first reinforcing plate 34 . The second reinforcing plate 35 may be positioned behind the first reinforcing plate 34 . The second reinforcing plate 35 may be positioned at the rear of the first base 31 . The second reinforcing plate 35 may be positioned perpendicular to the first base 31 . The second reinforcing plate 35 may be fastened to the beam 31a of the first base 31 . The second base 32 may face the front or rear surface of the housing 30 .

Referring to FIG. 18 , the second base 32f may not form a space. When the load received by the second base 32f is not large, the second base 32f may have sufficient rigidity by including the beam 32g. The first base 31' may include a beam 31a'.

19 and 20 , the motor assembly 810 may be installed on the second base 32 . The driving shaft of the motor assembly 810 may be formed on both sides. The right driving shaft and the left driving shaft of the motor assembly 810 may rotate in the same direction. Alternatively, the right driving shaft and the left driving shaft of the motor assembly 810 may rotate in opposite directions.

The motor assembly 810 may include a plurality of motors. A plurality of motors may be connected in series with each other. The motor assembly 810 may output a high torque by connecting a plurality of motors in series.

The lead screw 840 may be positioned on the left and right sides of the motor assembly 810 , respectively. The motor assembly 810 may be connected to the lead screw 840 . The coupling 811 may connect the lead screw 840 and the driving shaft of the motor assembly 810 to each other.

The lead screw 840 may be threaded along the longitudinal direction. The direction of the thread formed on the right lead screw 840 and the direction of the thread formed on the left lead screw 840 may be opposite to each other. A direction of a thread formed on the right lead screw 840 may be the same as a direction of a thread formed on the left lead screw 840 . The pitch of the left lead screw 840 and the right lead screw 840 may be the same.

Bearings 830a and 830b may be installed on the second base 32 . The bearings 830a and 830b may support both sides of the lead screw 840 . The bearings 830a and 830b may include an inner bearing 830b positioned close to the motor assembly 810 and an outer bearing 830a positioned far from the motor assembly 810 . The lead screw 840 may be stably rotated by the bearings 830a and 830b.

Slide 820 may engage lead screw 840 . The slide 820 may advance and retreat in the longitudinal direction of the lead screw 840 according to the rotation of the lead screw 840 . The slide 820 may move between the outer bearing 830a and the inner bearing 830b. The slide 820 may be positioned on the left lead screw 840 and the right lead screw 840 , respectively. The left slide 820 may engage the left lead screw 840 . The right slide 820 may engage the right lead screw 840 .

The left slide 820 and the right slide 820 may be positioned symmetrically with respect to the motor assembly 810 . Due to the driving of the motor assembly 810 , the left slide 820 and the right slide 820 may move away from or approach each other by the same distance.

Referring to FIG. 21 , the motor assembly 810 may include a plate 812 . The plate 812 may be referred to as a mount plate 812 or a motor mount plate 812 . The coupling portion 32h may be formed on the upper surface of the second base 32 . The plate 812 may be fastened to the coupling portion 32h through the screw S. The motor assembly 810 may be spaced apart from the upper surface of the second base 32 . The washer 813 may be positioned between the upper surface of the plate 812 and the screw S. The washer 813 may include a rubber material. The washer 813 may reduce vibration generated in the motor assembly 810 . The washer 813 may improve driving stability of the display device 100 .

Referring to FIG. 22 , the guide rail 860 may be installed on the second base 32 . The guide rail 860 may be positioned in parallel with the lead screw 840 . Slide 820 may engage guide rail 860 . The first stopper 861b may be located on one side of the guide rail 860 , and the second stopper 861a may be located on the other side of the guide rail 860 . A range in which the slide 820 can move may be limited between the first stopper 861b and the second stopper 861a.

The spring 850 may surround the lead screw 840 . The lead screw 840 may pass through the spring 850 . The spring 850 may be positioned between the inner bearing 830b and the slide 820 . One side of the spring 850 may contact the inner bearing 830b, and the other side of the spring 850 may contact the slide 820 . The spring 850 may provide an elastic force to the slide 820 .

When the slide 820 is caught by the first stopper 861b, the spring 850 may be maximally compressed. When the slide 820 is caught by the first stopper 861b, the length of the spring 850 may be the minimum. When the slide 820 is caught by the first stopper 861b, the distance between the slide 820 and the inner bearing 830b may be the minimum.

Referring to FIG. 23 , when the slide 820 is caught by the second stopper 861a, the spring 850 may be maximally tensioned. When the slide 820 is caught by the second stopper 861b, the length of the spring 850 may be the maximum. When the slide 820 is caught by the second stopper 861a, the distance between the slide 820 and the inner bearing 830b may be the maximum.

Referring to FIG. 24 , the first part 820a may be engaged with the guide rail 860 . The first part 820a may move along the guide rail 860 . Movement of the first part 820a in the longitudinal direction of the guide rail 860 may be restricted. The second part 820b may be positioned above the first part 820a. The first part 820a and the second part 820b may be fastened through screws. The second part 820b may be spaced apart from the guide rail 860 . The lead screw 840 may penetrate the second part 820b. For example, the second part 820b may include a male thread engaged with a female thread of the lead screw 840 . Accordingly, even when the lead screw 840 rotates, the slide 820 does not rotate and may stably move forward and backward along the guide rail 860 .

The third part 820c may be coupled to one side of the second part 820b. The third part 820c may contact the spring 850 . The third part 820c may receive elastic force from the spring 850 .

25 and 26 , the link mount 920 may be installed on the second base 32 . One side of the second arm 912 may be pivotally connected to the link mount 920 . The other side of the second arm 912 may be pivotally connected to the joint 913 . The other side of the second arm 912 may be pivotally connected to the second shaft 913b. One side of the rod 870 may be pivotally connected to the slide 820 . The other side of the rod 870 may be pivotally connected to the second arm 912 or the third arm 915 . One side of the third arm 915 may be pivotally connected to the link mount 920 . The other side of the third arm 915 may be pivotably connected to the other side of the rod 870 . Link mount 920 may include shaft 921 . The second arm 912 or the third arm 911 may be pivotally connected to the shaft 921 .

The link bracket 951 may be referred to as a link cap 951 . The link bracket 951 may be coupled to the top case 950 . The top case 950 may be referred to as a case top 950 , an upper bar 950 , a top 950 , or a bar 950 . The top case 950 may be located at the top of the display unit 20 . The display unit 20 may be fixed to the top case 950 .

One side of the first arm 911 may be pivotally connected to the joint 913 . One side of the first arm 911 may be pivotably connected to the first shaft 913a. The other side of the first arm 911 may be pivotably connected to the link bracket 951 or the top case 950 .

The gear g1 may be formed on one side of the first arm 911 . The gear g2 may be formed on the other side of the second arm 912 . The gear g1 of the first arm 911 and the gear g2 of the second arm 912 may mesh with each other.

When the slide 820 moves closer to the outer bearing 830a, the second arm 912 or the third arm 915 may stand up. In this case, a direction in which the second arm 912 or the third arm 915 stands up may be referred to as a standing direction DRS.

The second arm 912 may include a protrusion 914 protruding in the standing direction DRS. The protrusion 914 may be referred to as a connecting portion 914 . The third arm 915 may include a protrusion 916 protruding in the standing direction DRS. The protrusion 916 may be referred to as a connecting portion 916 . The protrusion 914 of the second arm 912 and the protrusion 916 of the third arm 915 may face or contact each other. The other side of the rod 870 may be fastened to the protrusion 914 of the second arm 912 or the protrusion 916 of the third arm 915 .

The link 910 may include a first arm 911 , a second arm 912 , a third arm 915 , and/or a joint 913 .

27 and 28 , an angle between the second arm 912 or the third arm 915 and the second base 32 may be referred to as theta S. When the rod 870 is connected to the upper side of the second part 820b, the angle the rod 870 makes with the second base 32 is theta A, and the rod 870 is the second arm 912 or the third The minimum force for standing the arm 915 may be referred to as Fa. When the rod 870 is connected to the middle of the second part 820b, the angle between the rod 870 and the second base 32 is theta B, and the rod 870 is the second arm 912 or the third The minimum force for standing the arm 915 may be referred to as Fb. When the rod 870 is connected to the lower side of the second part 820b, the angle the rod 870 makes with the second base 32 is theta C, and the rod 870 is the second arm 912 or the third The minimum force for standing the arm 915 may be referred to as Fc.

For the same theta S, the relation theta A < theta B < theta C can be established. In addition, a relationship of Fc < Fb < Fa may be established for the same theta S. If the angle between the second arm 912 or the third arm 915 and the second base 32 is the same, as the angle between the rod 870 and the second base 32 increases, the second arm 912 ) or the force required to stand the third arm 915 may be reduced. The rod 870 may be connected to the lower side of the second part 820b to reduce a load applied to the motor assembly 810 .

Referring to FIG. 29 , the rod 870 ′ may not be connected to the protrusion of the second arm 912 ′ or the protrusion of the third arm 915 ′. When the angle between the second arm 912 ′ or the third arm 915 ′ and the second base 32 is theta S, the angle between the rod 870 ′ and the second base 32 is called theta 1 . The minimum force for the rod 870 ′ to stand up the second arm 912 ′ or the third arm 915 ′ may be referred to as F1 .

Referring to FIG. 30 , the rod 870 may be connected to the protrusion 914 of the second arm 912 or the protrusion 916 of the third arm 915 . When the angle between the second arm 912 or the third arm 915 and the second base 32 is theta S, the angle between the rod 870 and the second base 32 may be referred to as theta 2 and , the minimum force for the rod 870 to stand up the second arm 912 or the third arm 915 may be referred to as F2.

Referring to FIG. 31 , when theta S is the same, theta 2 may be greater than theta 1. When Theta S is the same, F1 may be greater than F2. If the angles between the second arms 912 and 912' and the second base 32 are the same, as the angle between the rods 870 and 870' and the second base 32 increases, the second arm 912, The force required to stand 912') may be reduced. Since the rod 870 is connected to the protrusions 914 and 916 , the second arm 912 can stand up with a small force compared to a case in which the rod 870 ′ is not connected to the protrusions. The rod 870 is connected to the protrusions 914 and 916 , thereby reducing a load applied to the motor assembly 810 .

Referring to FIG. 32 , the second arm 912 or the third arm 915 may have a central axis CR. When the rod 870 is fastened with the second arm 912 away from the central axis CR by a distance r, the angle between the rod 870 and the second base 32 may be referred to as theta 2 , and the rod ( The minimum force for the 870 to stand up the second arm 912 or the third arm 915 may be referred to as F3 . When the rod 870 is fastened with the second arm 912 away from the central axis CR by a distance r', the angle between the rod 870 and the second base 32 may be referred to as theta 2', The minimum force for the rod 870 to stand up the second arm 912 or the third arm 915 may be referred to as F4. When the rod 870 is fastened with the second arm 912 away from the central axis CR by a distance r'', the angle between the rod 870 and the second base 32 may be referred to as theta 2''. And, the minimum force for the rod 870 to stand up the second arm 912 or the third arm 915 may be referred to as F5.

Referring to FIG. 33 , when theta S is the same, theta 2'' may be greater than theta 2', and theta 2' may be greater than theta 2. When Theta S is the same, F3 may be greater than F4, and F4 may be greater than F5. The farther the rod 870 is fastened from the central axis CR, the smaller the force required to stand the second arm 912 may be. Since the rod 870 is fastened away from the central axis CR, a load applied to the motor assembly 810 may be reduced.

Referring to FIG. 34 , the first arm 911 and the second arm 912 may be positioned close to or in contact with the rear surface of the display unit 20 . When the first arm 911 and the second arm 912 are positioned close to or in contact with the rear surface of the display unit 20 , the display unit 20 can be stably wound around or unwound from the roller. The link mount 920 may include a first part 922 and a second part 923 . The first part 922 and the second part 923 may face each other. A space S4 may be formed between the first part 922 and the second part 923 . The first part 922 may face the display unit 20 . The first part 922 may be located closer to the display unit 20 than the second part 923 . The second arm 912 may be pivotally connected to the front surface of the first part 922 . A portion of the third arm 915 may be accommodated in the space S4 and may be pivotally connected to the first part 922 or the second part 923 .

Referring to FIG. 35 , the rod 870 may include a first part 871 and a second part 872 . The first part 871 may include a connection part 871a on one side. The second part 872 of the slide 820 may form a space S5 therein. The connection part 871a may be inserted into the space S5. The connection part 871a may be pivotably connected to the second part 820b (refer to FIG. 34 ) of the slide 820 . The other side of the first part 871 may be connected to one side of the second part 872 . The other side of the second part 872 may be pivotably connected to the second arm 912 or the third arm 915 . The first part 871 may form a space S3 therein. The first part 871 may include a hole 871b. The lead screw 840 may be accommodated in the hole 871b or the space S3 .

A distance between the second part 872 and the display unit 20 may be D1. The second arm 912 may have a thickness W1. A portion of the third arm 915 accommodated in the space S4 may have a thickness W3 . The thickness W3 may be equal to the distance between the first part 922 and the second part 923 . A portion of the third arm 915 that is not accommodated in the space S4 may have a thickness W2 . The first part 922 may have a thickness W4. The thickness W2 may be greater than the thickness W3. The thickness W2 may be equal to the sum of the thickness W3 and the thickness W4. D1 may be the sum of the thickness W1 and the thickness W2.

The second arm 912 may contact or be located close to the rear surface of the display unit 20 , and the third arm 915 may be located between the second arm 912 and the second part 872 . The second part 872 may stably transmit power for standing the second arm 912 due to the third arm 915 . The second part 872 may be connected to the first part 871 by moving forward with respect to the rotation axis of the lead screw 840 in order to stably stand up the second arm 912 or the third arm 915 . . Due to this, a gap between the second arm 912 and the second part 872 may be minimized.

Referring to FIG. 36 , the pusher 930 may be mounted on the link mount 920 . The pusher 930 may be referred to as a lifter 930 . The second part 932 may be fastened to the first part 931 . The second part 932 may be in contact with or separated from the link bracket 951 . The second part 932 may be made of a material having high elasticity. The first part 931 may be made of a material having lower elasticity than the second part 932 . The first part 931 may be made of a material having a higher rigidity than the second part 932 . The first part 931 and the second part 932 may be collectively referred to as a head 936 . The head 936 may be located above the link mount 920 .

The third part 933 may be connected to the first part 931 . Alternatively, the third part 933 may extend downward from the first part 931 . The third part 933 may be referred to as a tail 933 . The fourth part 934 may protrude from the third part 933 . The link mount 920 may form a space S6 , and the third part 933 may be accommodated in the space S6 . The space S6 may be opened upward. The space S6 in which the third part 933 is accommodated may be adjacent to the space S4 in which the third arm 915 is accommodated (refer to FIG. 37 ). The second part 932 of the link mount 920 may include a hole 924 . The hole 924 may be a long hole formed long in the vertical direction. The length of the hole 924 may be H1. The fourth part 934 may be inserted into the hole 924 . The spring 935 may be accommodated in the space S6 . The spring 935 may be located below the third part 933 . The spring 935 may provide an elastic force to the third part 933 in a vertical direction.

The head 936 may be larger than the diameter of the space S6 . When the head 936 is hung on the upper end of the space S6 , the height of the head 936 from the second base 32 may be the minimum. The minimum height of the head 936 may be referred to as H2. When the height of the head 936 is the minimum, the fourth part 934 may be hung at the lower end of the space S6 . When the height of the head 936 is minimal, the spring 935 can be maximally compressed. When the height of the head 936 is the minimum, the elastic force provided by the spring 935 may be the maximum. When the height of the head 936 is the minimum, the height of the top case 950 may be the minimum.

The pusher 930 may provide an elastic force to the link bracket 951 while in contact with the link bracket 951 . Due to this, the load applied to the motor assembly 810 to make the link 910 stand may be reduced.

Referring to FIG. 37 , when the link 910 is sufficiently erected, the pusher 930 may be separated from the link bracket 951 . When the pusher 930 is separated from the link bracket 951 , the height of the head 936 from the second base 32 may be the maximum. The maximum height of the head 936 may be referred to as H3. When the height of the head 936 is the maximum, the fourth part 934 may be caught on the upper end of the hole 924 (refer to FIG. 36 ). When the height of the head 936 is maximum, the spring 935 can be tensioned to the maximum. When the height of the head 936 is the maximum, the elastic force provided by the spring 935 may be the minimum. The maximum height H3 of the head 936 may be substantially equal to the sum of the minimum height H2 of the head 936 and the length H1 of the hole.

Referring to FIG. 38 , the display unit 20 may be maximally wound around the roller 143 . The display device 100 may be symmetrical with respect to the motor assembly 810 . The height of the top case 950 may be the minimum. The slide 820 may be at a position closest to the inner bearing 830b. The slide 820 may be caught by the first stopper 861b. The spring 850 may be in a maximally compressed state. The pusher 930 may contact the link bracket 951 . The height of the pusher 930 may be the minimum.

Referring to FIG. 39 , about half of the display unit 20 may be wound around the roller 143 . The display device 100 may be symmetrical with respect to the motor assembly 810 . About half of the display unit 20 may be unwound from the roller 143 . The slide 820 may be positioned between the first stopper 861b and the second stopper 861a. The pusher 930 may be separated from the link bracket 951 . The height of the pusher 930 may be the maximum.

Referring to FIG. 40 , the display unit 20 may be in a state in which it is maximally released by the roller 143 . The display device 100 may be symmetrical with respect to the motor assembly 810 . The height of the top case 950 may be the maximum. The slide 820 may be at a position closest to the outer bearing 830a. The slide 820 may be caught by the second stopper 861a. The spring 850 may be in a maximum tensioned state. The pusher 930 may be separated from the link bracket 951 . The height of the pusher 930 may be the maximum.

41 and 42 , the door assembly 4 may be installed on the first base 31 . The door assembly 4 may include a door 40 installed on the first base 31 to be movable in a direction crossing the longitudinal direction of the first base 31 . Here, the first base 31 extends long in the longitudinal direction of the roller 143 , and the roller 143 may be rotatably installed on the first base 31 through the bracket 143a.

The door 40 may be adjacent to the front plate 30f of the housing 30 . In this case, the door 40 may open the opening 30P provided in the upper plate 30u of the housing 30 while moving forward Mf, or may close the opening 30P while moving backward Mr.

Accordingly, when the door 40 opens the opening 30P, the display unit 20 may descend through the opening 30P or rise through the opening 30P. Here, the display unit 20 may descend while being wound around the roller 143 or may rise while being unwound by the roller 143 .

42 and 43 , the door 40 extends long in the left and right directions, and may be located in front of the first base 31 . Accordingly, the door 40 may cover the flexible display panel 10 wound around the roller 143 in front of the roller 143 .

The door 40 may be formed in a rectangular plate shape as a whole. The upper bending part 40a of the door 40 is bent backward from the upper end of the door 40 to be adjacent to the upper plate 30u (refer to FIG. 41 ) of the housing 30 , and may open and close the opening 30P. The lower bending portion 40b of the door 40 may be bent backward from the lower end of the door 40 to be adjacent to the lower plate of the housing 30 . Meanwhile, a portion of the door 40 excluding the upper bending portion 40a and the lower bending portion 40b (ie, a portion between the upper bending portion and the lower bending portion) may be referred to as a body.

For example, the lower bending part 40b may be located below the first base 31 . In other words, the first base 31 may be disposed adjacent to the lower end than the upper end of the door 40 . On the other hand, the upper bending part 40a is referred to as the upper protrusion part 40a in the sense that it protrudes backward from the upper end of the door 40, and the lower bending part 40b means that it protrudes backward from the lower end of the door 40 It may also be referred to as a lower protrusion 40b.

The frame 51 may be coupled to the door 40 at the rear of the door 40 . The frame 51 may include an upper frame 51a, a middle frame 51b, and a lower frame 51c. The upper frame 51a is adjacent to the upper side of the door 40, the lower frame 51c is adjacent to the first base 31 from the upper side of the first base 31, and the middle frame 51b is the upper frame ( It may be disposed between 51a) and the lower frame 51c.

The upper frame 51a and the lower frame 51c may extend long in the left and right directions. The middle frame 51b may extend in the vertical direction so that an upper end thereof is coupled to the upper frame 51a, and a lower end thereof may be coupled to the lower frame 51c. The middle frame 51b may include a plurality of middle frames 51b spaced apart from each other in the left and right directions. For example, the upper frame 51a, the middle frame 51b, and the lower frame 51c may include a metal material.

Accordingly, the door 40 may have improved torsional rigidity and/or bending rigidity as a whole. Also, even if the power for moving the door 40 in the front-rear direction is transmitted to a portion of the door 40 (eg, the left or right side of the door), the door 40 may move equally as a whole.

Referring to FIG. 44 , the door assembly 4 may include a motor assembly that provides power to the door 40 . The motor assembly may include a motor 41 , a worm 41a , a worm wheel 42 , and a torque limiter 43 .

The motor 41 may provide rotational force. For example, the motor 41 may provide a torque of about 4 kg·m as an electric motor. The motor 41 is coupled to the first base 31 through the motor bracket 401 , and may be located above the first base 31 . For example, the motor 41 may be located behind the roller 143 .

The worm 41a may be positioned between the motor 41 and the first base 31 . The worm 41a may be fixed to the rotation shaft of the motor 41 and rotate together when the motor 41 rotates. The worm 41a may have a thread engaged with the worm wheel 42 . In this case, when the motor 41 rotates, the worm wheel 42 may rotate together with the worm 41a. At this time, the worm 41a is rotated about an axis parallel to the vertical direction, and the worm wheel 42 can be rotated about an axis parallel to the front-rear direction. In other words, the power of the motor 41 is transmitted to the worm wheel 42 in a direction orthogonal to the axial direction of the worm 41a, and a large reduction ratio may be formed between the worm 41a and the worm wheel 42 . The torque limiter 43 may engage the worm wheel 42 . For example, the torque limiter 43 may limit a torque greater than about 2 kg·m.

44 and 45 , the gear 44 may be engaged with the torque limiter 43 and rotated about an axis parallel to the front and rear directions. The shaft gear 45 is engaged with the gear 44 and may be rotated about an axis parallel to the front and rear directions. The first shaft 47 may be inserted into the shaft gear 45 . For example, one end of the first shaft 47 is fixed to the auxiliary gear 46 , and the auxiliary gear 46 is fixed to the shaft gear 45 , so that the first shaft 47 is connected to the shaft gear 45 . can be fixed. Accordingly, the first shaft 47 and the shaft gear 45 can rotate at the same time. On the other hand, since the number of teeth of the shaft gear 45 is greater than the number of teeth of the gear 44 , a large reduction ratio may be formed between the gear 44 and the shaft gear 45 .

The gearbox 48 may be located in front of the shaft gear 45 . The gearbox 48 may include a base 48a, a cover 48b, bearings 481 , 482 , and 485 , a first bevel gear 483 , and a second bevel gear 484 .

The base 48a may be fixed on the first base 31 . The cover 48b may be coupled to the upper side of the base 48a. At this time, the first shaft 47 may be inserted into the gearbox 48 and positioned between the base 48a and the cover 48b.

The first bevel gear 483 may be fixed to the first shaft 47 between the base 48a and the cover 48b. Accordingly, the first bevel gear 483 and the first shaft 47 may rotate at the same time. For example, the first bevel gear 483 may be coupled to the end of the first shaft 47 .

The second bevel gear 484 may be positioned in front of the first bevel gear 483 between the base 48a and the cover 48b. The second bevel gear 484 may mesh with the first bevel gear 483 . Accordingly, the second bevel gear 484 and the first bevel gear 483 may rotate at the same time. In this case, the axis of rotation of the second bevel gear 484 may intersect the axis of rotation of the second bevel gear 483 . For example, the axis of rotation of the second bevel gear 484 may be perpendicular to the axis of rotation of the first bevel gear 483 . For example, the axis of rotation of the second bevel gear 484 may be parallel to the left and right, and the axis of rotation of the first bevel gear 483 may be parallel to the front and rear directions.

The second shaft 49 may pass through the gearbox 48 in the left and right directions. The second shaft 49 may be fixed to the second bevel gear 484 between the base 48a and the cover 48b. Accordingly, the second shaft 49 may rotate simultaneously with the second bevel gear 484 .

Bearings 481 , 482 , and 485 may be positioned between the base 48a and the cover 48b. The bearings 481 , 482 , and 485 may include a first bearing 481 , a second bearing 482 , and a third bearing 485 . In this case, the first shaft 47 may be rotatably coupled to the first bearing 481 and the second bearing 482 . The first bearing 481 and the second bearing 482 may be spaced apart from each other in the front-rear direction, and may support rotation and load of the first shaft 47 . In addition, the second shaft 49 may be rotatably coupled to the third bearing 485 . The third bearing 485 faces the second bevel gear 484 , and may support rotation and load of the second shaft 49 .

43 and 46 , the motor assembly 4 may include a pair of moving assemblies 5: 5a and 5b spaced apart from each other in the left and right directions from the upper side of the first base 31 . In this case, the pair of moving assemblies 5a and 5b includes a left moving assembly 5a adjacent to the left side of the first base 31 and a right moving assembly 5b adjacent to the right side of the first base 31 . .

The second shaft 49 may extend long in the left and right directions. In this case, the left moving assembly 5a may include a left pinion 491a to which the left end of the second shaft 49 is fixed. In addition, the right moving assembly 5b may include a right pinion 491b to which the right end of the second shaft 49 is fixed.

Accordingly, the power of the motor 41 transmitted through the second shaft 49 may rotate the left pinion 491a and the right pinion 491b.

Meanwhile, since the left moving assembly 5a and the right moving assembly 5b have the same configuration, the same description may be applied to each. Hereinafter, for a brief description, the left moving assembly 5a will be described as a reference, and the left pinion 491a will be briefly referred to as a pinion 491 .

Referring again to FIG. 46 , the shaft bearing 402 may be coupled to the base 31 on the upper side of the first base 31 adjacent to the pinion 491 . For example, the shaft bearing 402 may be fixed to the first base 31 by a fastening member such as a screw. In this case, the second shaft 49 may be rotatably coupled to the shaft bearing 402 . The shaft bearing 402 may support rotation and load of the second shaft 49 . In addition, the second shaft 49 may pass through the shaft bearing 402 and be fixed to the pinion 491 .

The rack 531 extends long in the front-rear direction, and may be engaged with the pinion 491 . Accordingly, the pinion 491 rotating together with the second shaft 49 may rotate on the rack 531 . And, the rack cover 533 is extended in the front-rear direction, it may be coupled to the rack (531). For example, the rack 531 and the rack cover 533 may be integrally formed.

The connector 52 may be coupled to the door 40 at the rear of the door 40 . The connector 52 may be adjacent to the lower side and the left side of the door 40 . One side of the connector 52 may be coupled to the middle frame 51b, and the other side may be coupled to the rack cover 533 . Accordingly, when the rack 531 and the rack cover 533 move in the front-rear direction by the rotation of the pinion 491 , the connector 52 , the frame 51 , and the door 40 may move in the front-rear direction.

Furthermore, as the components providing power to the door 40 are disposed adjacent to the first base 31 on the upper side of the first base 31 as described above, the volume of the display device with the door assembly 4 . increase can be minimized.

Meanwhile, the guide rail 403 may be coupled to the first base 31 from an upper side of the first base 31 . For example, the guide rail 403 may be fixed to the upper surface of the first base 31 by a fastening member such as a screw. The guide rail 403 may extend long in the front-rear direction. The groove 403a may be formed long in the front-rear direction at the upper side of the guide rail 403 . For example, the length of the groove 403a may be equal to or longer than the maximum distance that the rack 531 can move forward or backward.

For example, a front stopper (not shown) is provided in the groove 403a adjacent to the front end of the guide rail 403 , and a rear stopper (not shown) is adjacent to the rear end of the guide rail 403 in the groove 403a. can be provided in Accordingly, the front stopper and the rear stopper may limit the forward or backward movement of the rack 531 or more at a certain level.

46 and 47 , a carriage (C) may be coupled to the rack 531 between the rack 531 and the guide rail 403 . For example, the carriage C may be fixed to the lower surface of the rack 531 by a fastening member such as a screw.

The carriage C may be inserted into the groove 403a of the guide rail 403 between the rack 531 and the guide rail 403 . In this case, the shape of the groove 403a of the guide rail 403 may be the same as that of the carriage C.

The carriage (C) is inserted into the guide rail (403), it can move in the front-rear direction together with the rack (531). In other words, as the carriage C is movably constrained to the guide rail 403 , it is possible to prevent the rack 531 from shifting in a direction intersecting the front-rear direction.

Accordingly, when the pinion 491 rotates in the first direction (eg, clockwise) according to the power of the motor 41 transmitted through the second shaft 49 , the rack 531 and the door coupled thereto The opening (30P) can be opened by moving while sliding (40) forward (refer to the lower figure of FIG. 47). And, when the pinion 491 rotates in a second direction (for example, counterclockwise) opposite to the first direction according to the power of the motor 41 transmitted through the second shaft 49, the rack ( 531) and the door 40 coupled thereto can be moved while sliding backward to close the opening 30P (refer to the upper figure of FIG. 47).

Referring to FIG. 48 , the upper bending part 40a of the door 40 may be adjacent to the upper plate 30u of the housing 30 . The upper bending part 40a may completely close the opening 30P, and in this case, the front surface of the door 40 may be disposed in parallel with the front surface of the housing 30 (refer to the upper figure of FIG. 48 ). The upper bending part 40a may open a part of the opening 30P, and in this case, the front surface of the door 40 may protrude forward more than the front surface of the housing 30 (refer to the middle figure of FIG. 48 ). The upper bending part 40a may completely open the opening 30P, and in this case, the display unit 20 may pass through the opening 30P (refer to the lower figure of FIG. 48 ).

49 , the display device 100 may include a frame 200 . The frame 200 may form a skeleton of the display device 100 .

Frame 200 may include a plurality of horizontal frames (210, 220, 230, 240) arranged in parallel in the left and right direction and a plurality of vertical frames (250, 260, 270, 280) arranged in parallel in the vertical direction. have. The horizontal frame and the vertical frame may be coupled to each other.

The first horizontal frame 210 may be positioned above the display device. The second horizontal frame 220 may be parallel to the first horizontal frame 210 and located below the first horizontal frame 210 . The third horizontal frame 230 may be parallel to the second horizontal frame 220 and located below the second horizontal frame 220 . The fourth horizontal frame 240 may be parallel to the third horizontal frame 230 and located below the third horizontal frame 230 .

The first vertical frame 250 may be located on the right side of the display device. The second vertical frame 260 may be located on the left side of the display device. The third vertical frame 270 and/or the fourth vertical frame 280 may connect the first horizontal frame 210 and the second horizontal frame 220 to each other.

The bar 290 is elongated from the first vertical frame 250 to the second vertical frame 260 , and can move vertically on the front surfaces of the first vertical frame 250 and the second vertical frame 260 .

The bottom frame 245 may form a lower surface of the display device. The frames 200 may be coupled to the bottom frame 245 .

For example, the housing 30 may be provided between the bottom frame 245 and the fourth horizontal frame 240 . In this case, the lower bending portion 40b of the door 40 and the lower plate 30d of the housing 30 may contact the upper surface of the bottom frame 245 .

50 to 52 , the display panel 10 may move up and down from the front of the frame 200 .

50 and 51 , when the door 40 moves forward and the opening 30P is opened, the display panel 10 is released from the rollers 143 (refer to FIG. 49 ) to the upper side of the frame 200 . can move 51 and 50 , when the door 40 moves forward and the opening 30P is opened, the display panel 10 may move downward of the frame 200 while being wound around the roller 143 .

Referring to FIG. 52 , the display panel 10 released from the roller 143 may rise to a position adjacent to the upper end of the frame 200 . In this case, the display panel 10 and the door 40 may cover the front of the frame 200 .

According to an aspect of the present disclosure, a flexible display panel; a roller extending long and on which the display panel is wound or unwound; a base extending long in the longitudinal direction of the roller, the roller being rotatably installed; In addition, there is provided a display device including a door assembly installed on the base to be movable in a direction crossing the longitudinal direction of the base and including a door covering the display panel wound around the roller.

According to another aspect of the present disclosure, the door extends in a longitudinal direction of the base, and is located in front of the base, and the door assembly includes: installed on the base, and provides power to the door motor to do; a shaft extending long and connected to the rotation shaft of the motor; a pair of pinions fixed to the shaft and spaced apart from each other in the longitudinal direction of the shaft; And, a rack extending long in a direction crossing the longitudinal direction of the shaft and engaged with the pair of pinions; may further include a rack coupled to the door.

According to another aspect of the present disclosure, the door assembly may include: a worm fixed to a rotation shaft of the motor; a worm wheel engaged with the worm; And, engaged with the worm wheel, it may further include a torque limiter connected to the shaft.

According to another aspect of the present disclosure, the shaft includes: a first shaft extending elongatedly and connected to the torque limiter; and a second shaft extending long in a direction crossing the longitudinal direction of the first shaft and spaced apart from the first shaft, further comprising a second shaft to which the pair of pinions are fixed, the door assembly comprising: gear meshing with the torque limiter; a shaft gear fixed to one side of the first shaft and engaged with the gear; a first bevel gear fixed to the other side of the first shaft; The second bevel gear may further include a second bevel gear fixed to the second shaft and engaged with the first bevel gear.

Also, according to another aspect of the present disclosure, the first axis and the second axis may be located above the base.

According to another aspect of the present disclosure, the door assembly further comprises: a gearbox fixed on the base, the first shaft is inserted, and the second shaft passes through, the gearbox comprising: , the first bevel gear and the second bevel gear may be accommodated therein.

According to another aspect of the present disclosure, the door assembly may include: a first bearing disposed between one side and the other side of the first shaft inside the gearbox, the first bearing being rotatably coupled to the first shaft; A second bearing disposed to face the second bevel gear inside the gearbox and to which the second shaft is rotatably coupled may be further included.

According to another (another) aspect of the present disclosure, the door assembly includes: a guide rail fixed to the base and having a groove elongated in the longitudinal direction of the rack; And, it is provided on one side of the rack, it may further include a movable carriage (carriage) inserted into the groove of the guide rail.

According to another aspect of the present disclosure, the door assembly may further include: a connector coupled to the door and the rack between the door and the rack.

According to another (another) aspect of the present disclosure, further comprising a frame coupled to the door at the rear of the door, the frame includes: an upper extending in a longitudinal direction of the base and adjacent to an upper side of the door frame; a lower frame extending long in the longitudinal direction of the base and positioned below the upper frame; and a middle frame extending in a direction crossing the upper frame and the lower frame and coupled to the upper frame and the lower frame, wherein the middle frame includes a plurality of middle frames spaced apart from each other in the longitudinal direction of the base. may include

According to another aspect of the present disclosure, a housing providing an internal accommodating space in which the base is installed; further comprising a housing having an opening through which the display panel passes, the door comprising: a body elongated in the longitudinal direction; an upper bending part that is bent backward from the upper end of the body; In addition, the body may further include a lower bending part that is bent backward from the lower end of the body, and the upper bending part may open and close the opening.

Any or other embodiments of the present disclosure described above are not mutually exclusive or distinct. Certain embodiments or other embodiments of the disclosure described above are not mutually exclusive or distinct from each other. Any or all elements of the embodiments of the disclosure described above may be combined or combined with each other in configuration or function).

For example, it means that configuration A described in a specific embodiment and/or drawings may be combined with configuration B described in other embodiments and/or drawings. That is, even if the combination between the configurations is not directly described, it means that the combination is possible except for the case where it is explained that the combination is impossible (For example, a configuration "A" described in one embodiment of the disclosure and the drawings. and a configuration "B" described in another embodiment of the disclosure and the drawings may be combined with each other. Namely, although the combination between the configurations is not directly described, the combination is possible except in the case where it is described that the combination is impossible).

The above detailed description should not be construed as restrictive in all respects and should be considered as exemplary. The scope of the present invention should be determined by rational 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 (although embodiments have been described with reference to a number of illustrative embodiments) thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles of this disclosure. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art).

Claims (11)

flexible display panel;
a roller extending long and on which the display panel is wound or unwound;
a base extending long in the longitudinal direction of the roller, the roller being rotatably installed; and,
and a door assembly installed on the base to be movable in a direction crossing the longitudinal direction of the base and including a door covering the display panel wound around the roller. According to claim 1,
The door is
It extends long in the longitudinal direction of the base and is located in front of the base,
The door assembly comprises:
a motor installed on the base and providing power to the door;
a shaft extending long and connected to the rotation shaft of the motor;
a pair of pinions fixed to the shaft and spaced apart from each other in the longitudinal direction of the shaft; and,
A rack extending long in a direction crossing the longitudinal direction of the shaft and engaged with the pair of pinions, the display device further comprising a rack coupled to the door. 3. The method of claim 2,
The door assembly comprises:
a worm fixed to the rotation shaft of the motor;
a worm wheel engaged with the worm; and,
The display device further comprising a torque limiter engaged with the worm wheel and connected to the shaft. 4. The method of claim 3,
The axis is:
a first shaft extending elongatedly and connected to the torque limiter; and,
A second shaft extending long in a direction crossing the longitudinal direction of the first shaft and spaced apart from the first shaft, further comprising a second shaft to which the pair of pinions are fixed,
The door assembly comprises:
a gear engaged with the torque limiter;
a shaft gear fixed to one side of the first shaft and engaged with the gear;
a first bevel gear fixed to the other side of the first shaft; and,
The display device further comprising a second bevel gear fixed to the second shaft and engaged with the first bevel gear. 5. The method of claim 4,
The first axis and the second axis are positioned above the base. 5. The method of claim 4,
The door assembly comprises:
It is fixed on the base, the first shaft is inserted, further comprising a gearbox through which the second shaft passes,
The gearbox is
A display device accommodating the first bevel gear and the second bevel gear therein. 7. The method of claim 6,
The door assembly comprises:
a first bearing disposed between one side and the other side of the first shaft inside the gearbox, the first bearing being rotatably coupled to the first shaft; and,
The display device further comprising a second bearing disposed to face the second bevel gear inside the gearbox and to which the second shaft is rotatably coupled. 3. The method of claim 2,
The door assembly comprises:
a guide rail fixed to the base and having a groove formed to be elongated in the longitudinal direction of the rack; and,
The display device is provided on one side of the rack, the display device further comprising a movable carriage (carriage) inserted into the groove of the guide rail. 3. The method of claim 2,
The door assembly comprises:
The display device further comprising a connector coupled to the door and the rack between the door and the rack. According to claim 1,
Further comprising a frame coupled to the door at the rear of the door,
The frame is:
an upper frame extending long in the longitudinal direction of the base and adjacent to an upper side of the door;
a lower frame extending long in the longitudinal direction of the base and positioned below the upper frame; and,
and a middle frame extending in a direction crossing the upper frame and the lower frame and coupled to the upper frame and the lower frame,
The middle frame is a display device including a plurality of middle frames spaced apart from each other in the longitudinal direction of the base. According to claim 1,
A housing providing an internal accommodating space in which the base is installed; further comprising a housing having an opening through which the display panel passes,
The door is:
a body elongated in the longitudinal direction of the base;
an upper bending part that is bent backward from the upper end of the body; and,
Further comprising a lower bending portion that is bent backward from the lower end of the body,
The upper bending portion is a display device for opening and closing the opening.

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