Patent ID: 12222765

MODE FOR INVENTION

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.

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 the present disclosure, that which 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.

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. These terms are only used to distinguish one element from another.

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 following description, even if the embodiment is described with reference to specific drawings, if necessary, reference numerals not appearing in the specific drawings may be referred to, and reference numerals not appearing in the specific drawings are used in a case where the above reference numerals appear in the other figures.

Referring toFIG.1, a display device10may include a display unit20and a housing30. The housing30may have an internal space. At least a portion of the display unit20may be located inside the housing30. At least a portion of the display unit20may be located outside the housing30. The display unit20may display a screen.

A direction parallel to the length direction of the housing30may be referred to as a first direction DR1, a left direction, or a right direction. A direction in which the display unit20displays a screen may be referred to as a front side direction, or a forward direction. A direction opposite to the direction in which the display unit20displays a screen may be referred to as a −z axis, a rear side direction, or a rearward direction. A direction parallel to a height direction of the display device10may be referred to as a second direction DR2, an upper direction, or a lower direction.

A third direction DR3may be a direction perpendicular to the first direction DR1and/or the second direction DR2. The first direction DR1and the second direction DR2may be collectively referred to as a horizontal direction. In addition, the third direction DR3may be referred to as a vertical direction. The left-right direction LR may be parallel to the first direction DR1, and the up-down direction UD may be parallel to the second direction DR2.

Referring toFIG.2, the entire display unit20may be located inside the housing30. At least a portion of the display unit20may be located outside the housing30. The extent to which the display unit20is exposed to the outside of the housing30may be adjusted as necessary.

Referring toFIG.3, the display unit20may include a display panel21and a plate23. The display panel21may be flexible. For example, the display panel21may be an organic light emitting display (OLED).

The display panel21may have a front surface for displaying an image. The display panel21may have a rear surface opposite to the front surface. The front surface of the display panel21may be covered with a light-transmitting material. For example, the light-transmitting material may be a synthetic resin or a film.

The plate23may be coupled, fastened, or attached to the rear surface of the display panel21. The plate23may include a metal material. The plate23may be referred to as a module cover23, a cover23, a display panel cover23, a panel cover23, or an apron23.

Referring toFIG.4, the plate23may include a plurality of segments23c. A magnet24may be located inside a recess26of the segment23c. The recess26may be located on a surface of the segment23cfacing the display panel21. The recess26may be located in the front surface of each segment23c. Since the magnet24is received inside the recess26, the magnet24may not protrude out of the segment23c. The display panel21may be flat without being crumpled even when it comes into contact with the segment23c.

Referring toFIG.5, a bead27may be formed on the upper surface of the segment23b. The bead27may have a shape recessed to the inside of the segment23b. For example, the bead27may be formed by pressing the segment23b. A plurality of beads27may be formed in the segment23b. The plurality of beads27may be spaced apart from each other. The bead27may improve the rigidity of the segment23b. The bead27may prevent the shape of the segment23bfrom being deformed from an external impact. The segment23bmay be fixed to the rearward direction of the display panel21by an adhesive member22. For example, the adhesive member22may be a double-sided tape.

Referring toFIG.6, a source PCB21bmay be located in the lower side of the module cover23. When the source PCB21bis rolled down or rolled up, its position may change with the movement of the module cover23. A FFC cable21amay be located in the center of the module cover23based on a first direction. The FFC cable21amay be located in opposite ends of the module cover23based on the first direction.

Referring toFIG.7, the segment23dmay include a recess portion28recessed to the inside of the segment23d. The recess portion28may form a space between the display panel21and the module cover23. The FFC cable21amay be accommodated in the space formed by the recess portion28. In addition, the recess portion28may improve the rigidity of the segment23d. The bead27may be located on the segment23dexcluding a portion where the recess portion28is located. The position of the recess portion28may not overlap with the position of the bead27to prevent the segment23dfrom weakening.

Referring toFIG.8, in the segment23e, a penetrating portion29may be located in a central portion of the segment23ebased on the first direction. The penetrating portion29may penetrate the central portion of the segment23ein the second direction. That is, the penetrating portion29may be a hole located in the segment23e. The penetrating portion29may be a portion in which the FFC cable21ais located. Since the penetrating portion29is formed in the segment23e, the thickness of the segment23ecan be reduced in comparison with a case where the FFC cable21ais located in the recess portion28(refer toFIG.7). The bead27may be located in the segment23eexcluding a portion where the penetrating portion29is located. The position of the penetrating portion29may not overlap the position of the bead27in order to prevent the segment23efrom weakening.

Referring toFIG.9, a top case60may cover the display panel21and the module cover23as well as the source PCB21band an upper bar50. One surface of the upper bar50may be coupled to the rear surface of the module cover23, and the other surface may be coupled to the source PCB21b. The upper bar50may be fixed to the module cover23to support the source PCB21b.

The lower end of the FFC cable21amay be connected to a timing controller board41(refer toFIG.10) inside a panel roller40(refer toFIG.10). The FFC cable21amay be wound around or unwound from the panel roller40together with the display unit20.

A portion of the FFC cable21amay be located between the display panel21and the module cover23. A portion of the FFC cable21alocated between the display panel21and the module cover23may be referred to as a first portion21a1. The first portion21a1may be located in the recess portion28formed by the plurality of segments23d. Alternatively, the first portion21a1may be received in the recess portion28formed by the plurality of segments23d.

A portion of the FFC cable21amay penetrate the segment23f. A portion of the FFC cable21athat penetrates the segment23fmay be referred to as a second portion21a2. The segment23fmay include a first hole23fh1formed on the front surface and a second hole23fh2formed on the rear surface. The first hole23fh1and the second hole23fh2may be interconnected to form one hole23fh. The hole23fhmay penetrate the segment23fin a third direction. The second portion21a2may pass through the hole23fh. The hole23fhmay be referred to as a connection hole23fh.

An upper end of the FFC cable21amay be electrically connected to the source PCB21b. A portion of the FFC cable21amay be located on the rear surface of the module cover23. A portion of the FFC cable21alocated on the rear surface of the module cover23may be referred to as a third portion21a3. The third portion21a3may be electrically connected to the source PCB21b.

The third portion21a3may be covered by the top case60. Accordingly, the third portion21a3may not be exposed to the outside.

Referring toFIG.10, the FFC cable21amay be connected to the timing controller board41mounted on the panel roller40. A through hole42may be formed in the panel roller40, and the FFC cable21amay be connected to the timing controller board41through the through hole42.

The through hole42may be located in one side of the panel roller40and may penetrate the outer circumferential portion of the panel roller40. The FFC cable21amay be connected to one side of the timing controller board41through the through hole42.

Even if the FFC cable21ais located on the outer perimeter of the panel roller40, the connection to the timing controller board41may be maintained due to the through hole42. Accordingly, the FFC cable21amay not be twisted by rotating together with the panel roller40.

A portion of the FFC cable21amay be wound around the panel roller40. A portion of the FFC cable21awound around the panel roller40may be referred to as a fourth portion23a4. The fourth portion23a4may be in contact with the circumference of the panel roller40.

A portion of the FFC cable21amay pass through the through hole42. A portion of the FFC cable21apassing through the through hole42may be referred to as a fifth portion23a5.

A lower end of the FFC cable21amay be electrically connected to the timing controller board41. A portion of the FFC cable21amay be located inside the panel roller40. A portion of the FFC cable21alocated inside the panel roller40may be referred to as a sixth portion23a6. The sixth portion23a6may be electrically connected to the timing controller board41.

Referring toFIG.11, the display panel21may be connected to the roller40. The display panel21may be wound around or unwound from the roller40. The display panel21may be electrically connected to the plurality of source PCBs21b. The plurality of source PCBs21bmay be spaced apart from each other.

A source chip on film (COF)21mmay connect the display panel21and the source PCB21b. The source COF21mmay be located in the lower side of the display panel21. The roller40may include a first part43and a second part44. The first part43and the second part44may be fastened by a screw. The timing controller board41may be mounted inside the roller40.

The source PCB21bmay be electrically connected to the timing controller board41. The timing controller board41may transmit digital video data and a timing control signal to the source PCB21b.

A cable21pmay electrically connect the source PCB21band the timing controller board41. For example, the cable21pmay be a flexible flat cable (FFC). The cable21pmay pass through the hole21n. The hole21nmay be formed in a seating portion45or the first part43. The cable21pmay be located between the display panel21and the second part44.

The seating portion45may be formed in the outer perimeter of the first part43. The seating portion45may be formed by stepping a portion of the outer perimeter of the first part43. The seating portion45may form a space B. When the display unit20is wound around the panel roller40, the source PCB21bmay be received in the seating portion45. Since the source PCB21bis received in the seating portion45, it may not be bent or crooked, and durability may be improved.

Referring toFIGS.12and13, a pipe110may extend long in the left-right direction. There may be a plurality of pipes110. The plurality of pipes110may include a first pipe111, a second pipe112, and a third pipe113. The plurality of pipes110may be parallel to each other. For example, the pipe110may be a hollow cylinder. As another example, the pipe110may be a cylindrical bar.

The pipe110may be coupled to a frame120,130while being inserted into the frame120,130. The frame120,130may include a first frame120and a second frame130. The first frame120may be located adjacent to one end of the pipes110, and the second frame130may be located adjacent to the other end of the pipes110. The first frame120may face the second frame130.

For example, the frame120,130may be a rectangular plate. The first pipe111may be inserted into the frames120and130while being adjacent to a first corner C1of the first frame120and the second frame130. The second pipe112may be inserted into the frames120and130while being adjacent to a second corner C2of the first frame120and the second frame130. The third pipe113may be inserted into the frames120and130while being adjacent to a third corner C3of the first frame120and the second frame130.

A central opening123may be formed in a plate121of the first frame120. The central opening123may be a circle formed by penetrating the plate121of the first frame120. The first pipe111, the second pipe112, and the third pipe113may be disposed while forming a triangle with respect to the central opening123.

Referring toFIG.13, couplers122,124,126,132,134, and136may be formed in the plates121and131. The first frame120may include a 11 coupler122, a 12 coupler124, and a 13 coupler126formed in the plate121. The second frame130may include a 21 coupler132, a 22 coupler134, and a 23 coupler136formed in the plate131. The first pipe111may be inserted into the 11 coupler122and the 21 coupler132. The second pipe112may be inserted into the 12 coupler124and the 22 coupler134. The third pipe113may be inserted into the 13 coupler126and the 23 coupler136.

Referring toFIGS.14and15, the coupler136may have a cylindrical shape formed by penetrating the plate131. The coupler136may be fixed to the plate131, and may be formed with the plate131as one body. The coupler136may have an outer side1361and an inner side1362with respect to the plate131. A distance D2of the outer side1361may be smaller than a distance D1of the inner side1362. A fastening hole136hmay be formed in the inner side1362. The pipe113may be fixed to the frame130while the screw is fastened to the fastening hole136h.

A first neck1131may form an engraved ring on the outer surface of the pipe113while being recessed to the inner side of the pipe113while being adjacent to the outer side1361of the coupler136. A second neck1132may be adjacent to a distal end of the pipe113, but may be spaced apart from the distal end of the pipe113and recessed to the inner side of the pipe113to form an engraved ring on the outer surface of the pipe113. The pipe113may be firmly fixed to the frame130while a coupling ring CR3is fastened to the first neck1131. For example, the coupling ring CR3may be an E-ring.

Referring toFIGS.16to19, the display unit20wound around the panel roller40may be inserted between the first pipe111, the second pipe112, the third pipe113, the first frame120, and/or the second frame130. The panel roller40may be disposed in parallel with the first pipe111, the second pipe112, or the third pipe113.

The guide roller140may be coupled to the frames120and130while the panel roller40and the display unit20are located between the pipes110and the frames120and130. The guide roller140may include a shaft142, a roller141, and a fixing plate143.

A support portion137may be formed on the plate131. The support portion137may support the shaft142of the guide roller140. The shaft142may be fixed to the support portion137, and the roller140can rotate on the shaft142. The support portion137may be formed in the inner side of the plate131.

The support portion137may include a body1371, a shaft groove1372, and a plate-in groove1373. The body1371may have a cylindrical shape protruding from the inner surface of the plate131. The shaft groove1372may be recessed to the inner side of the body1371from the circumference of the body1371. The plate-in groove1373may be recessed to the inside of the body1371from the circumference of the body1371between the shaft groove1372and the plate131. A groove width W2of the plate-in groove1373may be larger than a groove width W1of the shaft groove1372.

In other words, the shaft groove1372may have a groove width W1corresponding to the diameter of the shaft142, and the plate-in groove1373may have a groove width W2corresponding to the diameter of the fixing plate143. The shaft142of the guide roller140may be inserted into the shaft groove1372of the support portion137, and the fixing plate143of the guide roller may be inserted into the plate-in groove1373of the support portion137while the guide roller140is supported by the support portion137.

The fixing plate143may be fixed to the frame130by a fastening member (e.g. a screw) fastened to the fastening holes137hpenetrating the frame130. Referring toFIG.21, the shaft142may be inserted into and fixed to the frame120.

Referring toFIG.20, a distance L12between the first pipe111and the second pipe112may be larger than a distance L23between the second pipe112and the third pipe113. A distance L12between the first pipe111and the second pipe112may be larger than a distance L34between the third pipe113and the guide roller140. A distance L12between the first pipe111and the second pipe112may be larger than a distance L41between the first pipe111and the guide roller140.

A distance L23between the second pipe112and the third pipe113may be larger than a distance L41between the first pipe111and the guide roller140. A distance L23between the second pipe112and the third pipe113may be larger than a distance L34between the third pipe113and the guide roller140. A distance L34between the third pipe113and the guide roller140may be larger than a distance L41between the guide roller140and the first pipe111.

Accordingly, the torsional rigidity of the display device as well as the sagging rigidity can be improved.

Referring toFIGS.21to24, one end of the panel roller40may be located adjacent to the central opening123of the first frame120. The rotation shaft of the panel roller40may be aligned with the center of the central opening123of the first frame120. A bearing450may be mounted in the central opening123of the first frame120. For example, the bearing450may be a ring bearing450.

One end of the panel roller40may be inserted or press-fitted into the bearing450. The other end of the panel roller40may be rotatably coupled to the second frame130. The panel roller40may include a rotation shaft46, and the rotation shaft46may penetrate the first frame130and be installed in the second frame130. The rotating shaft46may be connected to a lever47, and the panel roller40may be manually rotated through the lever47.

The coupler136may have a cylindrical shape formed by penetrating the plate131. The coupler136may be fixed to the plate131, and may be formed with the plate131as one body. The coupler136may have an outer side1361and an inner side1362with respect to the plate131. The distance D2of the outer side1361may be smaller than the distance D1of the inner side1362. For example, the distance D1of the inner side1362may be 5 times or more of the distance D2of the outer side1361.

The pipes112and113may be press-fitted to the outer sides1341and1361by penetrating inner sides1342and1362of the couplers134and136. The pipes112and113may not penetrate the couplers134and136. The outer sides3141and1361of the couplers134and136may cover the distal end of the pipes112and113. A first fastening hole136h1and a second fastening hole136h2may be formed in the inner side1362. As the screws are fastened to the first fastening hole136h1and the second fastening hole136h2, the pipe113may be firmly fixed to the frame130.

Referring toFIGS.25to27, a disk wheel210may include an inner circle211, an inclination portion213, an outer circle215, and a rim217. The inner circle211may have a disk shape having an opening at a center. Holes h1may be formed adjacent to the opening. The outer circle215may be referred to as a first outer circle215.

The inclination portion213may extend while expanding from an edge of the outer perimeter of the inner circle211in a radial direction. The inclination portion213may have an inclination with respect to the inner circle211in a ring shape. The outer circle215may extend from an edge of the outer perimeter of the inclination portion213. The rim217may be formed on one surface of the outer circle215along the outer perimeter of the outer circle215. Holes h2may be formed in the outer circle215while being adjacent to the boundary between the inclination portion213and the outer circle215.

Referring toFIGS.28and29, the disk wheel210may be coupled to the panel roller40. The disk wheel210may be coupled to one end of the panel roller40. The disk wheel210may be coupled to the side surface of the panel roller40by a fastening member penetrating the holes h1. The distance D1between one end of the module cover23wound around the panel roller40and the inner circle211may be smaller than the distance D2between one end of the module cover23wound around the panel roller40and the outer circle215.

Referring toFIGS.30and31, the disk wheel210may further include a guide wheel210G. The guide wheel210G may face the outer circle215with respect to the inner circle211. The guide wheel210G may include an inclination portion212, a middle part214, and a guide portion216. The middle part214may be referred to as a second outer circle214.

The inclination portion212may face the inclination portion213with respect to the inner circle211. The inclination portion212may extend while expanding from an edge of the outer perimeter of the inner circle211in a radial direction. The inclination portion212may have an inclination with respect to the inner circle211. The thickness d2of the inclination portion211may be larger than the thickness d1of the inclination portion213.

The middle part214may have a disk shape extending from the edge of the outer perimeter of the inclination portion212. The middle part214may be located in parallel with the outer circle215. The thickness T1of the outer circle215may be larger than the thickness T2of the middle part214. For example, the thickness T1of the outer circle215may be two times or more of the thickness T2of the middle part214. The distance L1between the circumference of the inner circle211and the circumference of the outer circle215may be smaller than the distance L2between the circumference of the middle part214and the circumference of the inner circle211. Accordingly, the middle part214can protect the module cover23(refer toFIG.32) wound around the panel roller40.

The guide portion216may include a first guide portion216aand a second guide portion216b. The first guide portion216amay extend from the circumference of the middle part214while converging inward in the radial direction. When the inclination of the inclination portion212is a positive inclination, the inclination of the first guide portion216amay be a negative inclination. The second guide portion216bmay extend from the circumference of the first guide portion216awhile converging inward in the radial direction. When the inclination of the inclination portion212is a positive inclination, the inclination of the second guide portion216bmay be a negative inclination. With respect to the radial direction, the inclination of the second guide portion216bmay be smaller than the inclination of the first guide portion216a. Accordingly, when the module cover23is wound around the panel roller40, a guide wheel210G may guide the module cover23step by step.

Referring toFIG.32, while the module cover23is wound around the panel roller40, the module cover23may be stacked on the circumference of the panel roller40. As the module cover23is stacked on the panel roller40, the side surfaces of the module cover23may not be evenly aligned.

If the module cover23is wound around the panel roller40without being evenly aligned, the display panel21(refer toFIG.4) may be wound around the panel roller40while being twisted or crumpled. In this case, the display panel21may be damaged.

When the module cover23is wound around the panel roller40, the side surface of the module cover23may be guided to a proper position by the guide portion216of the guide wheel210G. When the module cover23is stacked while being wound around the panel roller40several times, the side surface of the module cover23may be aligned by the guide portion216of the guide wheel210G.

The side surface of the module cover23is primarily guided by the first guide portion216a, and is secondarily guided by the second guide portion216bso that the module cover23is wound around the panel roller40. Accordingly, the display panel21may be prevented from being wound around the panel roller40while being twisted or crumpled.

Referring toFIGS.33and34, a brake219may be located while being adjacent to the disc wheel210. The brake219may reduce the rotation speed of the disk wheel210or stop the rotation of the disk wheel210.

The brake219may hold the outer circle215and/or the rim217of the disc wheel210. Accordingly, the rotation of the panel roller40can be controlled by reducing the rotation speed of the panel roller40.

Referring toFIG.35, the driving gear220may be coupled to the disk wheel210. For example, the driving gear220may be a ring-shaped inner ring gear. The outer diameter of the driving gear220may be substantially equal to or slightly larger than the inner diameter of the rim217. The driving gear220may be inserted or press-fitted to the rim217. The driving gear220may be referred to as a third gear220.

Holes h3may be sequentially formed on the side surface of the driving gear220along the circumferential direction of the driving gear220. The holes h3of the driving gear220may correspond to the holes h2(refer toFIG.28) of the disk wheel210. The fastening member may penetrate the holes h3, so that the driving gear220may be fixed to the disk wheel210. The rotation of the driving gear220may be the same as the rotation of the disk wheel210.

Referring toFIGS.36and37, an intermediate gear230may mesh with the driving gear220. The intermediate gear230may include an outer gear231and an inner gear232. The diameter of the outer gear231may be larger than the diameter of the inner gear232. The outer gear231may have the same rotation shaft as the inner gear232. The inner gear232may mesh with gear teeth in the inner side of the driving gear220.

A motor gear240may be fixed to the rotation shaft of the motor270. The motor gear240may mesh with the outer gear231of the intermediate gear230. The intermediate gear230may be referred to as a second gear230, and the motor gear240may be referred to as a first gear240.

As the rotation shaft of the motor270rotates, the motor gear240may rotate. The outer gear231of the intermediate gear230may be rotated by meshing with the motor gear240. The inner gear232of the intermediate gear230that rotates together with the outer gear231of the intermediate gear230may rotate the driving gear220. Accordingly, the motor270may provide a rotational force to the panel roller40.

Referring toFIGS.38and39, a rotation indicator250may be coupled to the motor gear240. The motor gear240may include a gear tooth241and a gear shaft242. The rotation indicator250may be fitted to the gear shaft242.

The rotation indicator250may have a disk shape. The rotation indicator250may have a plurality of protrusions on the circumference. The plurality of protrusions may be sequentially disposed along the circumferential direction on the circumference of the rotation indicator250.

A sensor260may be located adjacent to the rotation indicator250. For example, the sensor260may be a photosensor. The sensor260may detect the rotation of the rotation indicator250. The sensor260may be fixed to the inner surface of the frame130. A sensor fixing rib130R may protrude from the inner surface of the frame130. The sensor260may be fixed to the sensor fixing rib130R. The sensor260and/or the rotation indicator250may be located in the inner side of the driving gear220.

According to an aspect of the present disclosure, provided is a display device including: a flexible display panel; a roller which extends long, and around which the display panel is wound, or from which the display panel is unwound; and a disc wheel which is located adjacent to edges of stacked display panel while being wound around the roller, crosses a rotation shaft of the roller, and is coupled to the roller, wherein a diameter of the disk wheel is larger than a diameter of the display panel wound around the roller.

In addition, according to another aspect of the present disclosure, the disc wheel includes: an inner circle fixed to the roller; a first outer circle which forms a step toward an outer side in a rotation shaft direction of the roller from a circumference of the inner circle; and a second outer circle which faces the outer circle with respect to the inner circle, and forms a step inward in the rotation shaft direction of the roller.

In addition, according to another aspect of the present disclosure, a diameter of the second outer circle is larger than a diameter of the first outer circle.

In addition, according to another aspect of the present disclosure, the second outer circle includes a guide portion formed by chamfering an edge between a circumference of the second outer circle and a plane of the second outer circle facing edges of the display panel.

In addition, according to another aspect of the present disclosure, the disk wheel further includes a brake which is fixed to the roller, is rotated together with the roller, is located adjacent to the disk wheel, and brakes a rotation of the disk wheel.

In addition, according to another aspect of the present disclosure, the display device further includes a driving gear fixed to a plane of a first outer circle of the disk wheel; an intermediate gear meshing with the driving gear; and a motor gear meshing with the intermediate gear.

In addition, according to another aspect of the present disclosure, the driving gear is an inner wheel gear, and the intermediate gear includes: an outer gear meshing with the motor gear; and an inner gear meshing with the driving gear.

In addition, according to another aspect of the present disclosure, the display device further includes a motor rotating the motor gear; a sensor plate which is fixed to a rotation shaft of the motor gear, and has a plurality of protrusions sequentially disposed along a circumferential direction; and a sensor which is located adjacent to the sensor plate, and detects a rotation of the sensor plate.

In addition, according to another aspect of the present disclosure, the display device further includes: a first pipe which extends long in a length direction of the roller, and is located adjacent to the roller; and a second pipe which extends long in the length direction of the roller, is located adjacent to the roller, and faces the first pipe with respect to the roller.

In addition, according to another aspect of the present disclosure, the display device further includes: a first frame which is located adjacent to one end of the roller; and a second frame which is located adjacent to the other end of the roller, and faces the first frame with respect to the roller, wherein the first pipe and the second pipe are inserted by penetrating the first frame, wherein the first pipe and the second pipe are inserted by penetrating the second frame, wherein the motor is fixed to the first frame, wherein the sensor is fixed to a rib protruding from an inner side of the first frame.

In addition, according to another aspect of the present disclosure, the display device further includes: a module cover which extends long in a length direction of the roller, and has a plurality of segments sequentially arranged in an up-down direction of the display panel at a rear surface of the display panel, wherein the display panel and the module cover are wound around or unwound from the roller.

In addition, according to another aspect of the present disclosure, the display panel descends while being unwound from the roller, and ascends while being wound around the roller.

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

For example, a configuration “A” described in one embodiment of the invention and the drawings and a configuration “B” described in another embodiment of the invention 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.

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. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. 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.