Display device

Abstract

A display apparatus includes a display unit including a display panel configured to display an image, a curvature variation unit disposed on a rear surface of the display unit and varying a curvature of the display unit, and a vibration unit disposed on the rear surface of the display unit and configured to vibrate the display panel.

Description

[0001] This application is a divisional application of the original invention patent application with application number 202011228294.5 (application date: November 6, 2020, invention title: display device). Technical Field

[0002] This disclosure relates to a display device, and more specifically, to a curved display apparatus. Background Technology

[0003] With the development of an information-oriented society, the demands on display devices for displaying images are increasing. Recently, due to the enlargement of display screens in flat-panel types, there is a problem of increased discrepancies between the viewing distance to the center of the screen and the viewing distance to each of the two side areas.

[0004] To reduce viewing distance deviation and maximize the immersive experience for users viewing images, a curved display device has been proposed in which the flat panel display is bent at a specific curvature. In prior art display devices, because the display panel remains bent at a specific curvature, the curvature of the display panel cannot be changed (or altered) based on the user's (or viewer's) choice (or preference).

[0005] Furthermore, in existing curved display devices, the sound quality may be reduced due to interference between the sound output from the sound device used to output sound associated with the image and the sound propagating in the forward or downward direction relative to the display panel, as the sound is reflected by the wall or the ground. As a result, it may be difficult to transmit the sound accurately and may reduce the viewer's sense of immersion.

[0006] Therefore, in existing curved display devices, the user's sense of immersion when viewing images can be maximized by a screen that is curved at a certain curvature, but it may be difficult to transmit sound accurately, resulting in a reduction in the user's acoustic immersion. Summary of the Invention

[0007] The inventors have recognized the problems of existing curved display devices and have conducted various experiments on display devices that can change (or vary) the curvature of the display panel (or display unit) and display devices that can change the curvature of the display panel and output sound in the forward direction relative to the display panel to maximize the immersion of the user (or viewer) viewing the image. Through these experiments, the inventors have invented a display device with a new structure that can change the curvature of the display panel, and a display device with a new structure that maximizes the immersion of the user viewing the image.

[0008] Therefore, this disclosure aims to provide a display device that substantially eliminates one or more problems caused by the limitations and disadvantages of the prior art.

[0009] One aspect of this disclosure aims to provide a display device that can maintain a display panel in a flat shape or can change the curvature of the display panel.

[0010] One aspect of this disclosure aims to provide a display device that can maximize the immersion of a user (or viewer) viewing an image.

[0011] Further advantages and features of this disclosure will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon review of the following description, or may be learned from practice of this disclosure. The objects and other advantages of this disclosure may be realized and obtained by means of the structures particularly pointed out in the written description, its claims, and the accompanying drawings.

[0012] To achieve these and other advantages and in accordance with the purposes of this disclosure, as implemented and broadly described herein, a display device is provided, comprising: a display unit including a display panel configured to display an image; a curvature variation unit disposed on a rear surface of the display unit and changing the curvature of the display unit; and a vibration unit disposed on the rear surface of the display unit and configured to vibrate the display panel.

[0013] In another aspect of this disclosure, a display device is provided, comprising: a display unit including a display panel configured to display an image; and a curvature changing unit disposed on a rear surface of the display unit and changing the curvature of the display unit, wherein the curvature changing unit includes: a first arcuate member and a second arcuate member, the first arcuate member and the second arcuate member being respectively disposed in a first rear region and a second rear region of the display unit parallel to a first direction, each of the first arcuate member and the second arcuate member having a curved shape; and a driver disposed in the rear central region of the display unit to simultaneously rotate the first arcuate member and the second arcuate member. The central portion of each of the arcuate members; a guide, disposed on the rear surface of the display unit parallel to a second direction intersecting the first direction, to movably support the central portion and the intermediate portion between the two ends of each of the first and second arcuate members; and a fixing bracket, disposed in each of the third and fourth rear edge portions of the display unit parallel to the second direction intersecting the first direction, and the fixing bracket transmits the pressure applied to the ends of each of the first and second arcuate members, which rotate based on the drive of the driver, to each of the third and fourth rear edge portions of the display unit.

[0014] It should be understood that the foregoing overview and the following detailed description of this disclosure are exemplary and illustrative, and are intended to provide further explanation of the claimed disclosure. Attached Figure Description

[0015] The accompanying drawings are included to provide a further understanding of this disclosure, and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure. In the drawings:

[0016] Figure 1 This is a front perspective view showing a display device according to an embodiment of the present disclosure;

[0017] Figure 2 This is a plan view showing a display device according to an embodiment of the present disclosure;

[0018] Figure 3 This is a side view showing the planar shape and curved shape of a display device according to an embodiment of the present disclosure;

[0019] Figure 4 This is a rear view of a display device according to an embodiment of the present disclosure;

[0020] Figure 5 This is an exploded perspective view of a display device according to an embodiment of the present disclosure;

[0021] Figure 6 This shows the settings respectively. Figure 5 The diagram shows the curvature variation unit and vibration unit on the rear surface of the display unit;

[0022] Figure 7 It is along Figure 6 The cross-sectional view taken by line I-I' is shown;

[0023] Figure 8 yes Figure 6 An enlarged view of the area 'B1' shown;

[0024] Figure 9 yes Figure 8 An enlarged view of area 'B2' shown;

[0025] Figure 10 yes Figure 8 An enlarged view of area 'B3' shown;

[0026] Figure 11 It is used to describe Figures 8 to 10 The diagram shows the fixed connection component;

[0027] Figure 12A This is a cross-sectional view showing the planar shape of a display device according to an embodiment of the present disclosure;

[0028] Figure 12B This is a cross-sectional view showing the curvature variation state of a display device according to an embodiment of the present disclosure;

[0029] Figure 13 yes Figure 6 An enlarged view of area 'B4' shown;

[0030] Figure 14 This is a diagram used to describe a curvature variation unit according to another embodiment of this disclosure;

[0031] Figure 15 yes Figure 14 An enlarged view of region 'B5' shown in the image;

[0032] Figure 16 yes Figure 15 An enlarged view of region 'B6' shown in the image;

[0033] Figure 17 yes Figure 14 An enlarged view of area 'B7' shown;

[0034] Figure 18A This is a cross-sectional view showing the planar shape of a display device according to an embodiment of the present disclosure;

[0035] Figure 18BThis is a cross-sectional view showing the curvature variation state of a display device according to an embodiment of the present disclosure;

[0036] Figure 19 This is a diagram used to describe a position control unit according to an embodiment of the present disclosure;

[0037] Figure 20 This is a diagram used to describe a curvature variation unit according to another embodiment of this disclosure;

[0038] Figure 21 yes Figure 20 An enlarged view of region 'B8' shown in the image;

[0039] Figure 22 yes Figure 20 An enlarged view of region 'B9' shown in the image;

[0040] Figure 23 yes Figure 20 An enlarged view of region 'B10' shown; and

[0041] Figure 24 It is used to describe Figure 20 , Figure 22 and Figure 23 The diagram shows the fixed connector. Detailed Implementation

[0042] Exemplary embodiments of this disclosure will now be described in detail, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to refer to the same or similar parts.

[0043] The advantages and features of this disclosure and its implementation methods will be illustrated by the following embodiments described with reference to the accompanying drawings. However, this disclosure may be implemented in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is limited only by the scope of the claims.

[0044] The shapes, dimensions, ratios, angles, and quantities disclosed in the accompanying drawings used to describe embodiments of this disclosure are merely examples, and therefore, this disclosure is not limited to the details shown. The same reference numerals always refer to the same elements. In the following description, detailed descriptions of related known functions or configurations will be omitted where it is determined that such detailed descriptions would unnecessarily obscure the essence of this disclosure. Where the terms “comprising,” “having,” and “including” are used in this specification, another component may be added unless “only” is used. Unless otherwise stated, singular terms may include plural forms.

[0045] When interpreting a component, even without an explicit description, the component should be interpreted as including a range of error.

[0046] When describing positional relationships, for example, when the positional relationship between two components is described as “~above,” “~above,” “~below,” and “~beside,” one or more other components may be placed between the two components unless “exactly” or “directly” is used.

[0047] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” and “before,” discontinuous cases may be included unless “exactly” or “directly” is used.

[0048] It should 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 used only to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of this disclosure.

[0049] In describing the elements of this disclosure, terms such as first, second, A, B, (a), (b), etc., may be used. Such terms are used only to distinguish the corresponding element from other elements, and the corresponding elements are not limited by these terms in their nature, order, or sequence. It should be understood that when an element or layer is referred to as being "on" or "connected to" another element or layer, it may be directly on or directly connected to the other element or layer, or there may be intermediate elements or layers. Furthermore, it should be understood that when one element is disposed on or under another element, this may indicate that the elements are arranged in direct contact with each other, but may also indicate that the elements are arranged not in direct contact with each other.

[0050] The term “at least one” should be understood to include any and all combinations of one or more of the related listed elements. For example, “at least one of the first element, the second element, and the third element” means a combination of all elements proposed from two or more of the first element, the second element, and the third element, as well as the first element, the second element, or the third element.

[0051] Features of the various embodiments of this disclosure may be linked or combined with each other in part or in whole, and, as will be fully understood by those skilled in the art, may operate differently from each other and be technically driven. Embodiments of this disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.

[0052] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. When adding reference numerals to elements in each drawing, the same reference numerals may refer to the same elements even if the same elements are shown in other drawings. Furthermore, for ease of description, the scale of each element shown in the drawings differs from the actual scale, and therefore the description is not limited to the scale shown in the drawings.

[0053] Figure 1 This is a front perspective view showing a display device according to an embodiment of the present disclosure. Figure 2 This is a plan view showing a display device according to an embodiment of the present disclosure, and Figure 3 This is a side view showing the planar shape and curved shape of a display device according to an embodiment of the present disclosure.

[0054] Reference Figures 1 to 3 The display device according to embodiments of the present disclosure may include a display unit 100 implemented to display an image and a curvature changing unit that changes the display unit 100 to a planar shape (or planar mode) or a curved shape (or curved mode) in response to a user's selection (or operation).

[0055] The display unit 100 can be mounted upright on the bracket 300 or wall mount. For example, the bracket 300 or wall mount can be connected (or attached) to the rear surface or curvature variation unit of the display unit 100. In addition, the display unit 100 can be tilted in the front-back direction or moved in the vertical direction when mounted on the bracket 300 or wall mount.

[0056] Based on user operations performed via the curvature-changing button component CVB disposed in the bracket 300, the display unit 100 according to one embodiment can be transformed into a planar shape or a curved shape according to the drive of the curvature-changing unit. For example, when the shape of the display unit 100 is a planar shape having a curvature (or first curvature) R0 of 0 (zero), in response to user operations performed via the first button switch BS1 of the curvature-changing button component CVB, the curvature-changing unit can transform the display unit 100 into a curved shape having a curvature (or second curvature) R1 different from 0 (zero). For example, the curvature-changing unit can gradually change the curvature of the display unit 100 based on the operation time (or press duration) of the first button switch BS1, or it can bend (or change) the display unit 100 with a predetermined curvature R1 based on a single operation (or press) of the first button switch BS1. On the other hand, when the shape of the display unit 100 is a curved shape with a curvature R1 that is not 0 (zero), in response to a user operation performed by the second button switch BS2 of the curvature change button component CVB, the curvature change unit can change or restore the display unit 100 to a planar shape with a curvature R0 that is 0 (zero).

[0057] According to another embodiment, the display unit 100 can change into a planar shape or a curved shape based on user operations performed via a remote control RC that supports a near-field wireless interface, driven by a curvature changing unit. For example, when the display unit 100 is a planar shape with a curvature R0 of 0 (zero), the curvature changing unit can gradually change the curvature of the display unit 100 based on the operation time (or press duration) performed by the user via the first button BS1 of the remote control RC, or it can bend (or change) the display unit 100 by a predetermined curvature R1 based on a single operation (or press) of the first button BS1. On the other hand, when the display unit 100 is a curved shape with a curvature R1 that is not 0 (zero), in response to a user operation performed via the second button BS2 of the remote control RC, the curvature changing unit can change or restore the display unit 100 to a planar shape with a curvature R0 of 0 (zero).

[0058] When the display unit 100 of the display device according to an embodiment of the present disclosure displays an image or does not display an image, the display unit 100 can perform the function of a vibrating plate that outputs sound PVS in the forward direction FD relative to the display device. For this purpose, the display device according to an embodiment of the present disclosure may further include a vibration unit 500 disposed on the rear surface of the display unit 100.

[0059] The vibration unit 500 can be implemented such that, by using the display unit 100 as a vibrating plate, a sound PVS generated based on the vibration of the display unit 100 is output in the forward direction FD relative to the display device. For example, the vibration unit 500 can vibrate the display unit 100 in response to a sound signal (or voice signal), thereby generating a sound PVS (or panel vibration sound) based on the vibration of the display unit 100 (or panel vibration).

[0060] According to one embodiment, the vibration unit 500 can be disposed in each of the first vibration region (or first area) and the second vibration region (or second area) of the display unit 100. The display unit 100 can output a first sound (or left sound) and a second sound (or right sound) generated based on the vibrations of the first vibration region and the second vibration region, respectively, in the forward direction FD to achieve stereo sound.

[0061] The display device according to embodiments of the present disclosure may further include a rear curtain unit 400, which is implemented on the rear surface of the display unit 100 to cover the curvature variation unit.

[0062] The rear shielding unit 400 can deform based on the drive of the curvature changing unit to correspond to the curvature change of the display unit 100, thereby preventing mechanisms (or structures) provided on the rear surface of the display unit 100 from being exposed on the outside of its side surfaces. The rear shielding unit 400 will be described below.

[0063] The display device according to embodiments of the present disclosure can provide a display unit 100 (or display screen) that can vary in planar or curved shape based on the selection (or preference) of the user (or viewer) viewing the image, thereby maximizing the viewer's immersion through the curved display unit 100 (or display screen). Furthermore, the display device according to embodiments of the present disclosure can output sound in a forward direction FD (towards the viewer's face) relative to the display unit 100 based on the vibration of the display unit 100, and thus can provide the viewer with a sound PVS having accurate and improved sound quality without loss or distortion, thereby providing a display device for increasing the viewer's acoustic immersion. Furthermore, the display device according to embodiments of the present disclosure can output sound in the forward direction FD (towards the viewer's face) relative to the display unit 100 (or display screen) which is bent in a curved shape, based on the vibration of the display unit 100 (or display screen). Therefore, it can prevent or minimize the sense of difference (or mismatch) caused by the distance difference between the image and the sound, and can provide the viewer with a sound PVS with accurate and improved sound quality without loss or distortion, thereby maximizing the immersion of the user (or viewer) viewing the image.

[0064] Figure 4 This is a rear view of a display device according to an embodiment of the present disclosure. Figure 5 This is an exploded perspective view of a display device according to an embodiment of the present disclosure. Figure 6 This shows the settings respectively. Figure 5 The diagram shows the curvature variation unit and vibration unit on the rear surface of the display unit, and... Figure 7 It is along Figure 6 The cross-sectional view taken by line I-I' is shown.

[0065] Reference Figures 4 to 7 The display device according to the embodiments of the present disclosure may include a display unit 100, a curvature changing unit 200, and a bracket 300.

[0066] The display unit 100 can be the screen of a display device and can display images. For example, the display unit 100 can display images using multiple pixels, each pixel including a self-emissive display device. Additionally, the display unit 100 can perform the function of a touch sensor that senses user touch.

[0067] like Figure 7 As shown, a display unit 100 according to one embodiment may include a display panel 110 and a back cover 120.

[0068] Display panel 110 may include a self-emissive display panel or a flexible self-emissive display panel. For example, display panel 110 may include an emissive display panel, a micro-emissive display panel, a flexible emissive display panel, a flexible micro-emissive display panel, or a quantum dot emissive display panel, but is not limited thereto.

[0069] According to one embodiment, a display panel 110 may include: a pixel array layer disposed on a substrate and including a plurality of pixels; and an encapsulation member covering the pixel array layer.

[0070] Each of the plurality of pixels may include a light-emitting device layer. The light-emitting device layer may be implemented as a top-emitting structure or a bottom-emitting structure, in which light passes through the encapsulation member and is released to the outside, and in which light passes through the substrate and is released to the outside. Here, an example of implementing the light-emitting device layer in a top-emitting structure will be described.

[0071] The encapsulation component can be implemented to cover the pixel array layer, and therefore can include functionality to protect the light-emitting device layer from oxygen and / or water. For example, an encapsulation component based on a top-emitting structure can be transparent, and an encapsulation component based on a bottom-emitting structure can be opaque.

[0072] According to one embodiment, the display panel 110 may further include a touch sensor layer (or touch electrode layer) for sensing the user's touch position. When the light-emitting device layer has a top-emitting structure, the touch sensor layer may be disposed on the encapsulation member. When the light-emitting device layer has a bottom-emitting structure, the touch sensor layer may be disposed on the substrate.

[0073] The rear cover 120 can realize the rear structure of the display unit 100. The rear cover 120 can be disposed on the rear surface of the display panel 110 and can cover or support the rear surface of the display panel 110.

[0074] According to one embodiment, the back cover 120 may include a metallic material or a metallic alloy material. For example, the back cover 120 may include, but is not limited to, aluminum (Al), Al alloys, magnesium (Mg) alloys, alloys of iron (Fe) and nickel (Ni), and stainless steel, or an alloy material or its junction structure.

[0075] According to one embodiment, the rear cover 120 can be connected (or coupled) to the rear surface of the display panel 110 via the cover connecting member 130.

[0076] The cover connecting member 130 may be disposed (or inserted) between the rear cover 120 and the rear surface of the display panel 110. The cover connecting member 130 may provide an air gap AG between the rear cover 120 and the rear surface of the display panel 110.

[0077] According to one embodiment, the cover connection member 130 may include adhesive resin, double-sided tape or double-sided adhesive foam pad, and may have elasticity for absorbing impact.

[0078] According to one embodiment, the cover connecting member 130 may include a magnet. For example, the cover connecting member 130 may include a rubber magnet, but is not limited thereto.

[0079] According to one embodiment, the display unit 100 may also include an intermediate frame 140.

[0080] An intermediate frame 140 may be disposed between the rear edge portion of the display panel 110 and the front edge portion of the rear cover 120. The intermediate frame 140 may surround both the outer surface (or outer sidewall) of the display panel 110 and the outer surface (or outer sidewall) of the rear cover 120 to protect the outer surface of each of the rear cover 120 and the display panel 110, thereby improving the external design of the side surfaces of the display device. For example, the intermediate frame 140 may be referred to as an intermediate cabinet, intermediate cover, or intermediate rack, but the terminology is not limited thereto.

[0081] According to one embodiment, the intermediate frame 140 may include a support portion and a sidewall portion, the support portion supporting edge portions of each of the display panel 110 and the back cover 120, and the sidewall portion surrounding the side surface of each of the display panel 110 and the back cover 120. For example, the intermediate frame 140 may have a frame structure having a U-shaped or U-shaped cross-sectional structure, wherein the support portion and the sidewall portion are integrally formed.

[0082] In one embodiment of the intermediate frame 140, the first surface of the support can be attached to the rear edge portion of the display panel 110 by an adhesive member, and the second surface of the support can be attached to the front edge portion of the rear cover 120 by an adhesive member.

[0083] In one embodiment of the intermediate frame 140, the first surface of the support can be separated from the rear edge portion of the display panel 110, and the second surface of the support can be attached to the front edge portion of the rear cover 120 by an adhesive member.

[0084] The intermediate frame 140 according to one embodiment may include a metallic or plastic material. For example, the intermediate frame 140 may include a metallic material for improving the external design of the side surface of the display device and protecting the side surface of the display device, but the metallic material is not limited thereto.

[0085] Reference Figures 4 to 6 According to one embodiment, the display unit 100 may further include at least one rigid member 150.

[0086] At least one rigid member 150 may be disposed parallel to the first direction X on the rear surface of the display unit 100. According to one embodiment, at least one rigid member 150 may be connected (or coupled) to the rear central region of the display unit 100 parallel to the first direction X. At least one rigid member 150 may be implemented having a specific length parallel to the first direction X and a specific width parallel to a second direction Y intersecting the first direction X. For example, at least one rigid member 150 may include, but is not limited to, a metallic material. At least one rigid member 150 may be secured to the rear surface of the rear cover 120 by means of connecting members such as screws or bolts, but is not limited to, and at least one rigid member 150 may be secured to the rear surface of the rear cover 120 by means of connecting members such as double-sided tape.

[0087] To change the curvature of the display unit 100, a curvature changing unit 200 may be provided on the rear surface of the display unit 100. For example, the curvature changing unit 200 may be provided on the rear surface of the rear cover 120.

[0088] The curvature variation unit 200 can move (or move forward) two side portions of the display unit 100 in a forward direction FD relative to the display device in response to user (or viewer) operation. Therefore, the two side portions (or rear edge portions) of the display unit 100 can protrude in the forward direction FD relative to the central portion of the display device. Thus, since the two side portions of the display unit 100 protrude in the forward direction FD relative to the central portion of the display device, the display unit 100 can vary in shape with a curvature different from 0 (zero). For example, as seen from a viewer located in front of the display device, the display unit 100 with a varying curvature can have a curved shape in which its central portion curves concavely from its two side portions. The display unit 100 with a curved shape can provide the user with a three-dimensional and highly immersive image. For example, the display unit 100 with a curved shape can be implemented when one user, rather than multiple users, is viewing an image, but this disclosure is not limited thereto.

[0089] The curvature variation unit 200 can, in response to a user's operation, move (or rearward) the two side portions of the display unit 100 that protrude in the forward direction FD relative to the display device in the rearward direction RD relative to the display device, and thus can restore the two side portions of the display unit 100 to the same plane as the central portion of the display unit 100. Therefore, because the two side portions and the central portion are arranged on the same plane, the display unit 100 can become a planar shape with 0 (zero) curvature. A planar display unit 100 can be implemented when multiple users, rather than a single user, view the image, but this disclosure is not limited thereto.

[0090] According to one embodiment, the curvature variation unit 200 may include an arc member 210, a driver 220, and a guide 230.

[0091] The arc-shaped member 210 can be disposed on the rear surface of the display unit 100. For example, the arc-shaped member 210 can be disposed on the rear surface of the rear cover 120.

[0092] According to one embodiment, the arcuate member 210 has a curved shape. For example, the arcuate member 210 may be referred to as a curvature changing member or curvature alteration member, curvature changing rod, curvature changing strip or curvature changing tube, but the terminology is not limited thereto.

[0093] The arc-shaped member 210 can be rotated based on the drive of the driver 220 to move two side portions of the display unit 100 in a forward direction FD or a backward direction RD relative to the display device. For example, based on the drive of the driver 220, the arc-shaped member 210 can rotate a maximum of 90 degrees in a first rotation direction at a fixed position (or in an appropriate position), or it can rotate a maximum of 90 degrees in a second rotation direction opposite to the first direction. For example, the first rotation direction can be forward rotation or clockwise rotation, and the second rotation direction can be backward rotation or counterclockwise rotation, but this disclosure is not limited thereto, and the directions can be defined in opposite ways.

[0094] According to one embodiment, the arcuate member 210 may include a first arcuate member 211 and a second arcuate member 213.

[0095] The first arc-shaped member 211 may be disposed in a first rear region RA1 of the display unit 100 parallel to the first direction X. For example, the first arc-shaped member 211 may be disposed in the first rear region RA1 of the rear cover 120. The first rear region RA1 may be an upper rear region adjacent to the first long side of the rear surface of the display unit 100 relative to the upright state or the second direction Y. For example, the first rear region RA1 of the rear cover 120 may be located between the first long side and the rear central region of the display unit 100 parallel to the first direction X.

[0096] The first arcuate member 211 may have a curved shape. The first arcuate member 211 may have a curved shape that protrudes towards the rear central portion of the display unit 100. The central portion (or the central length portion) of the first arcuate member 211 may be adjacent to the rear central portion of the display unit 100, and both ends (or two side portions) of the first arcuate member 211 may be adjacent to the upper left and upper right corner portions of the display unit 100 (at the upper left and upper right corner portions, each of the first short side and the second short side is connected to the first long side). For example, one end (or the first end) of the first arcuate member 211 may be adjacent to the upper right corner portion of the display unit 100, and the other end (or the second end) of the first arcuate member 211 may be adjacent to the upper left corner portion of the display unit 100.

[0097] The second arc-shaped member 213 may be disposed in the second rear region RA2 of the display unit 100, which is parallel to the first direction X. The second arc-shaped member 213 may also be disposed in the second rear region RA2 of the rear cover 120. The second rear region RA2 may be a lower rear region adjacent to the second long side of the rear surface of the display unit 100 relative to its upright state or in the second direction Y. The second rear region RA2 of the rear cover 120 may be located between the second long side and the rear central region of the display unit 100.

[0098] The second arcuate member 213 may have a curved shape. The second arcuate member 213 may have a curved shape that protrudes towards the rear central portion of the display unit 100. The central portion (or the central length portion) of the second arcuate member 213 may be adjacent to the rear central portion of the display unit 100, and both ends (or two side portions) of the second arcuate member 213 may be adjacent to the lower left and lower right corner portions of the display unit 100 (in the lower left and lower right corner portions, each of the first short side and the second short side is connected to the second long side). For example, one end (or the first end) of the second arcuate member 213 may be adjacent to the lower right corner portion of the display unit 100, and the other end (or the second end) of the second arcuate member 213 may be adjacent to the lower left corner portion of the display unit 100.

[0099] The first arc-shaped member 211 and the second arc-shaped member 213 can be arranged symmetrically with respect to the vertical center line VCL or the rear central region of the display unit 100 on the rear surface of the display unit 100. Here, the vertical center line VCL of the display unit 100 can be located at the center of the short side length (or longitudinal length) of the display unit 100.

[0100] Each of the first arcuate member 211 and the second arcuate member 213 according to one embodiment may include a curved shape having a curvature corresponding to the maximum curvature of the display unit 100 to be implemented. Each of the first arcuate member 211 and the second arcuate member 213 may be an arcuate rod, arcuate strip, or arcuate tube having a circular cross-sectional surface and a curved shape. For example, each of the first arcuate member 211 and the second arcuate member 213 may include a metallic material, but is not limited thereto.

[0101] The driver 220 may be disposed in the rear central region of the display unit 100. The driver 220 may be disposed between the first arc-shaped member 211 and the second arc-shaped member 213.

[0102] The actuator 220 can simultaneously drive each of the first arcuate member 211 and the second arcuate member 213. The actuator 220 can simultaneously rotate the first arcuate member 211 and the second arcuate member 213 in two opposite rotational directions at a fixed position (or in an appropriate position). For example, the actuator 220 can rotate the first arcuate member 211 at a fixed position by a maximum of 90 degrees in a first rotational direction, and simultaneously rotate the second arcuate member 213 at a fixed position by a maximum of 90 degrees in a second rotational direction. Conversely, the actuator 220 can rotate the first arcuate member 211 at a fixed position by a maximum of 90 degrees in the second rotational direction, and simultaneously rotate the second arcuate member 213 at a fixed position by a maximum of 90 degrees in the first rotational direction.

[0103] The driver 220 can simultaneously rotate the first arc member 211 and the second arc member 213 at a fixed position by using linear motion based on the rotational motion of a rotary motor.

[0104] The guide 230 can be disposed parallel to the second direction Y on the rear surface of the display unit 100, and can movably support each of the first central portion and the second central portion of the arcuate member 210. The first central portion of the arcuate member 210 can be the center (or left center) between one end (or the first end) of the arcuate member 210 and the central portion, and the second central portion of the arcuate member 210 can be the center (or right center) between the central portion of the arcuate member 210 and the other end (or the second end). When the arcuate member 210 with its curved shape rotates, the guide 230 can prevent parts of the arcuate member 210 from disengaging or lifting.

[0105] Each of one side (or the first side) and the other side (or the second side) of the guide 230 can be fixed to the rear surface of the display unit 100. Each of one side and the other side of the guide 230 can be fixed to the rear surface of the rear cover 120. The central portion between one side and the other side of the guide 230 can be separated from the rear surface of the display unit 100. Therefore, the arcuate member 210 can be movably disposed in the separation space between the rear surface of the display unit 100 and the central portion of the guide 230, and thus, by using the guide 230 as a support, when the arcuate member 210 rotates, the guide 230 can prevent a portion of the arcuate member 210 from disengaging or lifting, and the two side portions of the display unit 100 can protrude in the forward direction FD relative to the display device.

[0106] According to one embodiment, the guide 230 can be disposed between the third rear region RA3 (or third region) and the fourth rear region RA4 (or fourth region) of the display unit 100, and can movably support each of the first arcuate member 211 and the second arcuate member.

[0107] In the display unit 100, the third rear region RA3 can be the right-hand region of the rear surface of the display unit 100 relative to the horizontal center line HCL of the display unit 100, which is parallel to the second direction Y. The fourth rear region RA4 can be the left-hand region of the rear surface of the display unit 100 relative to the horizontal center line HCL of the display unit 100. Here, the horizontal center line HCL of the display unit 100 can be located at the center of the long side length (or horizontal length) of the display unit 100.

[0108] According to one embodiment, the guide 230 may include a first guide member 231 and a second guide member 233.

[0109] The first guide member 231 may be disposed in the third rear region RA3 of the display unit 100 and may movably support the first central portion of each of the first arcuate member 211 and the second arcuate member 213.

[0110] One side of the first guide member 231 can be fixed to the first rear region RA1 of the display unit 100, and the other side of the first guide member 231 can be fixed to the second rear region RA2 of the display unit 100. For example, one side of the first guide member 231 can be fixed to the first rear region RA1 of the rear cover 120 by a connecting member such as a screw or bolt, and the other side of the first guide member 231 can be fixed to the second rear region RA2 of the rear cover 120 by a connecting member such as a screw or bolt.

[0111] The central portion between one side and the other side of the first guide member 231 can be disposed in the third rear region RA3 of the rear cover 120 such that it intersects with the first central portion of each of the first arcuate member 211 and the second arcuate member 213. The central portion of the first guide member 231 can be separated from the rear surface of the rear cover 120 by a distance greater than the diameter of the arcuate member 210 relative to the height of each of the one side and the other side of the first guide member 231. Therefore, the first central portion of each of the first arcuate member 211 and the second arcuate member 213 can move within the separation space between the central portion of the first guide member 231 and the rear surface of the rear cover 120.

[0112] The second guide member 233 may be disposed in the fourth rear region RA4 of the display unit 100 and movably support the second central portion of each of the first arcuate member 211 and the second arcuate member 213.

[0113] One side of the second guide member 233 can be fixed to the first rear region RA1 of the display unit 100, and the other side of the second guide member 233 can be fixed to the second rear region RA2 of the display unit 100. For example, one side of the second guide member 233 can be fixed to the first rear region RA1 of the rear cover 120 by a connecting member such as a screw or bolt, and the other side of the second guide member 233 can be fixed to the second rear region RA2 of the rear cover 120 by a connecting member such as a screw or bolt.

[0114] The central portion of the second guide member 233 between one side and the other can be disposed in the fourth rear region RA4 of the rear cover 120 such that it intersects with the second central portion of each of the first arcuate member 211 and the second arcuate member 213. The central portion of the second guide member 233 can be separated from the rear surface of the rear cover 120 by a distance greater than the diameter of the arcuate member 210 relative to the height of each of the two sides of the second guide member 233. Therefore, the second central portion of each of the first arcuate member 211 and the second arcuate member 213 can move within the separation space between the central portion of the second guide member 233 and the rear surface of the rear cover 120.

[0115] According to one embodiment, the curvature variation unit 200 may also include a fixing bracket 240.

[0116] The fixing bracket 240 may be disposed in each of the third rear region RA3 and the fourth rear region RA4 of the display unit 100, and may movably support the ends of each of the first arcuate member 211 and the second arcuate member 213. The fixing bracket 240 may movably support the ends of each of the first arcuate member 211 and the second arcuate member 213, and may guide the movement of the ends of each of the first arcuate member 211 and the second arcuate member 214. For this purpose, the fixing bracket 240 may include a side groove (or concave portion) having a certain depth from its inner surface, such that the ends of each of the first arcuate member 211 and the second arcuate member 213 are movably inserted into the side groove. For example, the fixing bracket 240 may be fixed adjacent to each corner of the rear cover 120 in the third rear region RA3 and the fourth rear region RA4 of the display unit 100. When each of the first arcuate member 211 and the second arcuate member 213 rotates, the fixing bracket 240 can transmit the pressure generated at the ends of each of the first arcuate member 211 and the second arcuate member 213 to each of the third and fourth rear edge portions of the display unit 100. In this case, the fixing bracket 240 can allow the ends of each of the first arcuate member 211 and the second arcuate member 213 to make surface contact with the display unit 100, thus preventing localized damage to the display unit 100 caused by localized point contact between the ends of each of the first arcuate member 211 and the second arcuate member 213 and the display unit 100.

[0117] According to one embodiment, the fixing bracket 240 may include a first fixing bracket 241 to a fourth fixing bracket 244.

[0118] The first fixing bracket 241 can be disposed in the upper region of the third rear region RA3 of the display unit 100 and can movably support one end (or the first end) of the first arc-shaped member 211. For example, the first fixing bracket 241 can be fixed to the third rear region RA3 adjacent to the upper right corner of the rear cover 120.

[0119] The second fixing bracket 242 can be disposed in the upper region of the fourth rear region RA4 of the display unit 100 and can movably support the other end (or the second end) of the first arc-shaped member 211. For example, the second fixing bracket 242 can be fixed to the fourth rear region RA4 adjacent to the upper left corner of the rear cover 120.

[0120] The third fixing bracket 243 can be disposed in the lower region of the third rear region RA3 of the display unit 100 and can movably support one end (or the first end) of the second arc-shaped member 213. For example, the third fixing bracket 243 can be disposed parallel to the first fixing bracket 241 and can be fixed to the third rear region RA3 adjacent to the lower right corner of the rear cover 120.

[0121] The fourth fixing bracket 244 can be disposed in the lower region of the fourth rear region RA4 of the display unit 100 and can movably support the other end (or the second end) of the second arcuate member 213. For example, the fourth fixing bracket 244 can be disposed parallel to the second fixing bracket 242 and can be fixed to the fourth rear region RA4 adjacent to the lower left corner of the rear cover 120.

[0122] The bracket 300 can be disposed on the rear surface of the display unit 100 and can support the display unit 100 in an upright state. For example, the bracket 300 can be supported by a plurality of bracket support blocks 301 and 303 disposed in the curvature variation unit 200.

[0123] According to one embodiment, the support 300 may include a prop 310 and a post 330.

[0124] The support column 310 can be implemented with specific dimensions. The support column 310 may include a curvature change button component CVB and a curvature change control circuit, which controls the driver 220 of the curvature change unit 200 based on user operations performed via the curvature change button component CVB.

[0125] The column 330 can be set perpendicular to the support column 310 and can be connected to the bracket support blocks 301 and 303 set in the curvature variation unit 200. Therefore, the display unit 100 can be supported or mounted on the column 330 of the bracket 300 in an upright state.

[0126] The display device according to embodiments of the present disclosure may further include a speaker unit 350 embedded in the bracket 300. The speaker unit 350 according to one embodiment may be a woofer, but is not limited thereto.

[0127] The display device according to embodiments of the present disclosure may further include a rear shielding unit 400.

[0128] Reference Figures 3 to 5The rear masking unit 400 can be implemented on the rear surface of the display unit 100 in a manner that covers the curvature changing unit 200. The rear masking unit 400 can realize the rear structure of the display device. Based on the driving of the curvature changing unit 200, the rear masking unit 400 can deform to correspond to the curvature change of the display unit 100.

[0129] According to one embodiment, a rear masking unit 400 may include a masking edge frame 410, a masking rear frame 430, and a plurality of masking members 450.

[0130] The edge shielding frame 410 can be connected to the rear edge portion of the display unit 100 and may include a first opening. For example, the edge shielding frame 410 can be implemented as a picture frame type to include a first opening that overlaps with the rear surface of the display unit 100 other than the rear edge portion of the display unit 100. The edge shielding frame 410 can be secured to the rear edge portion of the rear cover 120 by means of a connecting member such as a screw or bolt.

[0131] The rear shielding frame 430 can be attached to the edge shielding frame 410 and may include a second opening portion that overlaps with the first opening portion. For example, the rear shielding frame 430 may be implemented as a picture frame type that includes a second opening portion that overlaps with the first opening portion of the edge shielding frame 410. The rear shielding frame 430 may be secured to the edge shielding frame 410 by means of connecting members such as screws or bolts.

[0132] Multiple shielding members 450 may be fixed to the rear shielding frame 430 in a manner parallel to the second direction Y and spaced apart from each other in the first direction X. The multiple shielding members 450 may be disposed in the second opening portion of the rear shielding frame 430 in a manner parallel to the second direction Y and spaced apart from each other in the first direction X. For example, each of the multiple shielding members 450 may be disposed in the second opening portion of the rear shielding frame 430 with a certain tension and may be tilted at a specific angle to correspond to the curvature change of the display unit 100. Each of the multiple shielding members 450 according to one embodiment may include a deformable fibrous or fabric material that corresponds to the curvature change of the display unit 100.

[0133] According to one embodiment, the rear shielding unit 400 may further include a bracket connection port 470. The bracket connection port 470 may be implemented by removing the central portion of each of the plurality of shielding members 450, and thus the rear central portion of the display unit 100 may be exposed in the rearward direction RD relative to the display device.

[0134] The display device according to embodiments of the present disclosure may further include a vibration unit 500.

[0135] Reference Figures 4 to 7 The vibration unit 500 can be disposed on the rear surface of the display unit 100 and can be configured to vibrate the display panel 110, thereby outputting sound based on the vibration of the display panel 110. For example, the vibration unit 500 can cause the first vibration region (or the third rear region RA3) and the second vibration region (or the fourth rear region RA4) of the display unit 100 to vibrate, and thus, a first sound (or a left sound) and a second sound (or a right sound) generated based on the vibration of the first vibration region and the second vibration region, respectively, can be output in the forward direction FD relative to the display device, thereby achieving stereo sound.

[0136] The vibration unit 500 can be supported by the rear cover 120 of the display unit 100 and can be connected to the rear surface of the display panel 110 through the rear cover 120. For this purpose, the rear cover 120 may include a through hole 121 into which the vibration unit 500 can be inserted.

[0137] According to one embodiment, the vibration unit 500 may include a first vibration unit 510 and a second vibration unit 530.

[0138] The first vibration unit 510 can cause the first vibration region RA3 of the display unit 100 to vibrate, so as to output a first sound (or left sound) generated by the first vibration region of the display unit 100 in the forward direction FD relative to the display unit 100. For example, the first vibration unit 510 can be supported by the rear cover 120 and can be connected to the rear surface of the display panel 110 through the through hole 121 provided in the rear cover 120.

[0139] The second vibration unit 530 can cause the second vibration region RA4 of the display unit 100 to vibrate, so as to output a second sound (or right sound) generated by the second vibration region of the display unit 100 in the forward direction FD relative to the display unit 100. For example, the second vibration unit 530 can be supported by the rear cover 120 and can be connected to the rear surface of the display panel 110 through the through hole 121 provided in the rear cover 120.

[0140] Each of the first vibration unit 510 and the second vibration unit 530 may include a first sound generating unit 511 and a second sound generating unit 513 arranged in parallel in the display unit 100.

[0141] The first sound generating unit 511 and the second sound generating unit 513 can be supported side by side by the back cover 120 of the display unit 100. Furthermore, they can pass through the first through hole 121a and the second through hole 121b provided in the through hole 121 in the back cover 120 and can be connected to the rear surface of the display panel 110.

[0142] The first sound generating unit 511 of the first vibration unit 510 can pass through the first through hole 121a provided in the back cover 120 that overlaps with the first vibration region RA3 of the display unit 100, and therefore can be connected to the first vibration region RA3 of the display panel 110, and can be connected to the rear surface of the back cover 120 near the first through hole 121a.

[0143] The second sound generating unit 513 of the first vibration unit 510 can pass through the second through hole 121b provided in the back cover 120 that overlaps with the first vibration region RA3 of the display unit 100, and therefore can be connected to the first vibration region RA3 of the display panel 110, and can be connected to the rear surface of the back cover 120 near the second through hole 121b.

[0144] The first sound generating unit 511 of the second vibration unit 530 can pass through the first through hole 121a provided in the back cover 120 that overlaps with the second vibration region RA4 of the display unit 100, and therefore can be connected to the second vibration region RA4 of the display panel 110, and can be connected to the rear surface of the back cover 120 near the first through hole 121a.

[0145] The second sound generating unit 513 of the second vibration unit 530 can pass through the second through hole 121b provided in the rear cover 120 that overlaps with the second vibration region RA4 of the display unit 100, and therefore can be connected to the second vibration region RA4 of the display panel 110, and can be connected to the rear surface of the rear cover 120 near the second through hole 121b.

[0146] According to one embodiment, each of the first sound generating unit 511 and the second sound generating unit 530 may include a base frame 501, a magnet 502, a spool 503, a coil 504, a central magnetic pole 505, and a damper 506.

[0147] The base frame 501 can be referred to as a fixing component fixed to the back cover 120, and each of the magnet 502, spool 503, coil 504, center magnetic pole 505, and damper 506 can be referred to as a vibrating component for vibrating the display panel 110. However, this embodiment is not limited thereto.

[0148] According to one embodiment, the basic frame 501 may include a frame body 501a, an upper plate 501b, and a protruding bracket 501c.

[0149] The frame body 501a can be fixed to the rear cover 120. The frame body 501a can be used as a lower plate to support the magnet 502.

[0150] The upper plate 501b may protrude to the front edge portion of the frame body 501a to have a cylindrical shape including a hollow portion. Therefore, the frame body 501a and the upper plate 501b may be configured as a single body having a U-shaped shape. For example, the frame body 501a and the upper plate 501b are not limited to these terms and may each be referred to by another term such as a yoke.

[0151] The protruding bracket 501c can protrude from the side surface of the upper plate 501b. The protruding bracket 501c can be secured to the rear surface of the rear cover 120 by means of fastening member 515, so that the base frame 501 can be secured to the rear cover 120.

[0152] The fastening member 515 may be a screw or bolt that passes through the protruding bracket 501c and is fastened to the rear surface of the rear cover 120. In this case, the buffer member 600 may be disposed between the rear surface of the rear cover 120 and the protruding bracket 501c.

[0153] When the curvature of the display panel 110 changes, the buffer member 600 can tilt the base frame 501 based on the curvature of the display panel 110 to maintain the contact state between the first sound generating unit 511 and the second sound generating unit 513 and the display panel 110. For example, the buffer member 600 may include an elastic spring or an elastic pad, but is not limited thereto.

[0154] The magnet 502, the spool 503 and the coil 504 can be referred to as a magnetic circuit unit or a magnetic vibration unit, respectively, which are arranged on the base frame 501 to make the display panel 110 vibrate.

[0155] A magnetic circuit unit according to one embodiment may have an external magnetic type structure or a dynamic structure including a magnet 502 disposed outside the coil 504, or it may have an internal magnetic type structure or a miniature structure including a magnet 502 disposed within the coil 504. Each of the first sound generating unit 511 and the second sound generating unit 513, which includes a magnetic circuit unit having an internal magnetic type structure, may have low leakage flux and may be generally miniaturized. Each of the first sound generating unit 511 and the second sound generating unit 513 according to this disclosure may have an external magnetic type structure or an internal magnetic type structure. Hereinafter, examples of each of the first sound generating unit 511 and the second sound generating unit 513 according to this disclosure having an internal magnetic type structure will be described.

[0156] The magnet 502 can be disposed in the recessed portion of the base frame 501. The magnet 502 can be a permanent magnet with a cylindrical shape to facilitate insertion into the spool 503.

[0157] A spool 503 can be mounted on a base frame 501 to surround a magnet 502 and can be attached to the rear surface of a display panel 110. According to one embodiment, the spool 503 can have a circular or elliptical (or egg-shaped) shape, but is not limited thereto. A spool 503 with an egg-shaped shape can have an elliptical shape, a rounded rectangular shape, or a non-circular curved shape with a width different from its length, but embodiments of this disclosure are not limited thereto. For example, in a spool 503 with an egg-shaped shape, the ratio of the major axis diameter to the minor axis diameter can be from 1.3:1 to 2:1. A spool 503 with an egg-shaped shape can further improve the sound of the high-pitched vocal cords compared to a circular shape and can reduce heat generated by vibration; therefore, a spool 503 with an egg-shaped shape can have good heat dissipation characteristics.

[0158] Coil 504 can be wound around the outer circumferential surface of spool 503 and can be supplied with a current (or sound current) with a driving signal from the outside. Coil 504 can be called a voice coil, but the term is not limited to this. When current (or sound signal) is applied to coil 504, based on the applied magnetic field generated around coil 504 and the external magnetic field generated around magnet 502, according to Fleming's left-hand rule, the entire portion of spool 503 can vibrate, for example, perform vertical reciprocating motion, and sound (or panel vibration sound) can be generated based on the vibration of display panel 110 performed by the vertical movement (or vibration) of spool 503, and the sound can be output in the forward direction FD relative to display unit 100.

[0159] A central magnetic pole 505 can be disposed on a magnet 502 to guide the vibration of a spool 503. For example, the central magnetic pole 505 can be inserted into the hollow portion of the spool 503 and can be surrounded by the spool 503. For example, the central magnetic pole 505 can be referred to as a lifting guide or a pole piece, but is not limited thereto.

[0160] A damper 506 may be disposed between the base frame 501 and the spool 503. For example, according to one embodiment, the damper 506 may be disposed between the upper outer circumferential surface of the spool 503 and a protruding frame that protrudes from the frame body 501a of the base frame 501 to surround the upper plate 501b. The damper 506 may be configured as a creased structure between its one end and the other, and may contract and relax based on the vibration of the spool 503. The vibration distance (or vertical movement distance) of the spool 503 may be limited by the restoring force of the damper 506. For example, when the spool 503 vibrates at a specific distance or greater, or at a specific distance or less, the restoring force of the damper 506 may allow the spool 503 to return to its original position. Furthermore, the damper 506 may be referred to as a spider, suspension, or edge, but is not limited thereto.

[0161] Each of the first sound generating unit 511 and the second sound generating unit 513 according to one embodiment may further include a spool protection member 507 disposed on the spool 503. For example, the spool protection member 507 may be referred to as a spool ring or a spool cap, but is not limited thereto.

[0162] The spool protection member 507 can be disposed on the front surface (or front end portion) of the spool 503, and can transmit the rising and falling movements (or vibrations) of the spool 503 to the rear surface of the display panel 110. According to embodiments, the spool protection member 507 may have an annular shape disposed on the front surface of the spool 503, a disc shape covering the entire front surface of the spool 503, or a cap shape surrounding the front surface and upper outer surface of the spool 503, but its shape is not limited to these.

[0163] The spool protection member 507 can be disposed on (or attached to) the rear surface of the display panel 110 using a first adhesive member. The first adhesive member can be disposed between the spool protection member 507 and the rear surface of the display panel 110. According to one embodiment, the first adhesive member may include, but is not limited to, an adhesive or double-sided tape.

[0164] According to one embodiment, the spool protection member 507 can be provided in a molded form of metal or injection material. For example, the spool protection member 507 may include a fabric reinforcement material, a composite resin including a fabric reinforcement material, or a metal, and in this case, the spool protection member 507 may have a heat dissipation function to dissipate heat generated when driving the first sound generating unit 511 and the second sound generating unit 513.

[0165] Figure 8 yes Figure 6 A magnified view of region 'B1' shown. Figure 9 yes Figure 8 An enlarged view of area 'B2' is shown, and Figure 10 yes Figure 8 An enlarged view of region 'B3' is shown. The attached diagram is a diagram used to describe the driver of the curvature variation unit.

[0166] Reference Figures 8 to 10 According to embodiments of the present disclosure, the driver 220 of the curvature variation unit 200 may include a support plate 221, a retainer 222, a fixing link 223, at least one rotary motor 224, and a gear assembly 225.

[0167] The support plate 221 can be configured to overlap with the rear central portion of the display unit 100. For example, the support plate 221 can be implemented with a specific width parallel to a first direction X and a specific length parallel to a second direction Y, and can be disposed on (or attached to) the rear surface of the rear cover 120 to overlap with the central portion (or length central portion) of each of the second arcuate members 213 of the first arcuate member 211. The support plate 221 can support each of the retainer 222, at least one rotary motor 224, and gear assembly 225.

[0168] The support plate 221 may include a support block 301 and a support block 303 connected to the bracket 300. For example, the support block 301 and the support block 303 may be connected to the upper and lower parts of the support plate 221, respectively.

[0169] The retainer 222 can be connected to the support plate 221 and can rotatably support the central portion of the arcuate member 210. Therefore, the central portion of the arcuate member 210 can be rotatably disposed between the support plate 221 and the retainer 222. In addition, the driver 220 according to one embodiment may also include a bearing disposed between the central portion of the arcuate member 210 and the retainer 222.

[0170] According to one embodiment, the retainer 222 may include a first retainer 222a and a second retainer 222b, the first retainer being coupled to the support plate 221 to rotatably support the central portion of the first arcuate member 211, and the second retainer being coupled to the support plate 221 to rotatably support the central portion of the second arcuate member 213.

[0171] According to one embodiment, the two ends of each of the first retainer 222a and the second retainer 222b can be connected to the support plate 221 by a connecting member such as a screw or bolt.

[0172] According to one embodiment, the driver 220 may further include a first bearing disposed between the central portion of the first arcuate member 211 and the first retainer 222a, and a second bearing disposed between the central portion of the second arcuate member 213 and the second retainer 222b.

[0173] The fixing link 223 can be fixed to the central portion of the arc-shaped member 210. For example, the fixing link 223 can be fixed to the central portion of the arc-shaped member 210 by a fixing member FM such as a screw or bolt.

[0174] According to one embodiment, the fixing link 223 may include a first fixing link FL1 fixed to the central portion of the first arcuate member 211 and a second fixing link FL2 fixed to the central portion of the second arcuate member 213.

[0175] Each of the first fixed link FL1 and the second fixed link FL2 may include a pair of link fixing members LFP that project parallel to each other, with a first retainer 222a and a second retainer 222b located between the pair of link fixing members LFP. For example, the first fixed link FL1 may include a pair of link fixing members LFP that project parallel to each other, with a first retainer 222a located therebetween. The second fixed link FL2 may include a pair of link fixing members LFP that project parallel to each other, with a second retainer 222b located therebetween. The pair of link fixing members LFP may be fixed to the central portions of the respective arcuate members 211 and 213 by fixing members FM, respectively.

[0176] like Figure 11 As shown, the first fixing member FL1 can be disposed on the inner surface of the central region of the first arcuate member 211 facing the rear of the display unit 100, and can be configured to be tilted at a specific angle (θ) relative to the second direction Y. The first fixing member FL1 can be tilted at a specific angle (θ) from the rear surface of the display unit 100. For example, the first fixing member FL1 can be tilted 45 degrees clockwise along a vertical line extending from the central axis of the first arcuate member 211 in the thickness direction Z of the display unit 100. In this case, the tilt angle between the rear surface of the display unit 100 and the extension line connecting the central axis of the first fixing member FL1 to the central axis of the first arcuate member 211 can be approximately 45 degrees.

[0177] like Figure 11 As shown, the second fixing member FL2 can be disposed on the inner surface of the rear central region of the second arcuate member 213 facing the display unit 100, and can be configured to be tilted at a specific angle (θ) relative to the second direction Y. The second fixing member FL2 can be tilted at a certain angle (θ) from the rear surface of the display unit 100. For example, the second fixing member FL2 can be tilted counterclockwise by 45 degrees along a vertical line extending from the central axis of the second arcuate member 213 in the thickness direction Z of the display unit 100. In this case, the tilt angle between the rear surface of the display unit 100 and the extension line connecting the central axis of the second fixing member FL2 to the central axis of the second arcuate member 213 can be approximately 45 degrees.

[0178] Reference Figure 8 At least one rotary motor 224 may be disposed in the rear central region of the display unit 100 and may be supported by a support plate 221. The at least one rotary motor 224 may provide rotational force to the gear assembly 225 in response to a user operation performed to change the curvature of the display unit 100.

[0179] The driver 220 according to this embodiment may include a first rotary motor 224a and a second rotary motor 224b (or a pair of rotary motors) for maintaining balance, reducing noise and ensuring a margin of driving force (or rotational force).

[0180] The first rotary motor 224a and the second rotary motor 224b can be arranged parallel to each other, with the gear assembly 225 located between them. The drive shaft (or rotation shaft) of the first rotary motor 224a can be arranged adjacent to the first arcuate member 211, and the drive shaft (or rotation shaft) of the second rotary motor 224b can be arranged adjacent to the second arcuate member 213. In this case, the first rotary motor 224a and the second rotary motor 224b can rotate in the same direction.

[0181] Reference Figures 8 to 11 The gear assembly 225 can be mounted on the support plate 221 and connected to the rotary motor 224. The gear assembly 225 can rotate the fixed link 223 based on the rotational movement of the rotary motor 224, and can rotate the arcuate member 210 at a fixed position based on the rotation of the fixed link 223. For example, the gear assembly 225 can rotate the first fixed link FL1 and the second fixed link FL2 of the fixed link 223 in two opposite directions based on the rotational movement of the rotary motor 224, and therefore, each of the first fixed link FL1 and the second fixed link FL2 can be rotated simultaneously at a fixed position. The gear assembly 225 can be referred to as a reduction gear component, but is not limited thereto.

[0182] According to one embodiment, the gear assembly 225 may include a first rack RG1, a second rack RG2, a pinion PG, and a rotational transmission component RTP.

[0183] The first rack RG1 can be rotatably connected to the first fixed link FL1, and can be rotated by a maximum of 90 degrees in the first rotational direction or by a maximum of 90 degrees in the second rotational direction based on linear motion performed in the second direction Y.

[0184] One end of the first rack RG1 can be rotatably connected to the first fixed link FL1 using the first hinge pin HP1. The first fixed link FL1 can also be rotatably connected to one end of the first rack RG1 using the first hinge pin HP1. Therefore, the first fixed link FL1 can rotate based on the linear movement of the first rack RG1, causing the first arcuate member 211 to rotate. In this case, the first rack RG1 can move in the thickness direction Z of the display unit 100 based on the rotation trajectory RT of the first fixed link FL1. For example, the first rack RG1 can rise (Z+) or fall (Z-) in the thickness direction Z of the display unit 100 by a distance Lt corresponding to the rotation trajectory RT of the first fixed link FL1, while simultaneously performing linear movement in the second direction Y.

[0185] The second rack RG2 can be rotatably connected to the second fixed link FL2, and can be rotated by a maximum of 90 degrees in the first rotational direction or by a maximum of 90 degrees in the second rotational direction based on linear motion performed in the second direction Y.

[0186] One end of the second rack RG2 can be rotatably connected to the second fixed link FL2 using the second hinge pin HP2. The second fixed link FL2 can also be rotatably connected to one end of the second rack RG2 using the second hinge pin HP2. Therefore, the second fixed link FL2 can rotate based on the linear movement of the second rack RG2, causing the second arcuate member 213 to rotate. In this case, the second rack RG2 can move in the thickness direction Z of the display unit 100 based on the rotation trajectory RT of the second fixed link FL2. For example, the second rack RG2 can rise (Z+) or fall (Z-) in the thickness direction Z of the display unit 100 by a distance Lt corresponding to the rotation trajectory RT of the second fixed link FL2, while performing linear movement in the second direction Y.

[0187] A pinion PG can be connected (or meshed) between a first rack RG1 and a second rack RG2. The pinion PG allows the first rack RG1 and the second rack RG2 to perform linear motion in two opposite directions based on rotational motion. For example, the pinion PG can rotate in a first rotational direction to allow the first rack RG1 to perform linear motion in a first linear direction Y+ parallel to the second direction Y, and to allow the second rack RG2 to perform linear motion in a second linear direction Y- opposite to the first linear direction Y+. Conversely, the pinion PG can rotate in a second rotational direction opposite to the first rotational direction to allow the first rack RG1 to perform linear motion in the second linear direction Y-, and to allow the second rack RG2 to perform linear motion in the first linear direction Y+.

[0188] According to one embodiment, the pinion PG can be configured such that racks RG1 and RG2 rise (Z+) or fall (Z-) based on the rotational trajectory RT of each of the fixed links FL1 and FL2, which rotate based on the linear motion of racks RG1 and RG2. For example, the gear height (or tooth height) of the pinion PG can be configured to exceed the maximum lift height (or distance) of each of racks RG1 and RG2 based on the rotational trajectory RT of each of the fixed links FL1 and FL2.

[0189] According to one embodiment, the pinion PG may include a dual-gear structure comprising a first rotary gear RGa having a first size and a second rotary gear RGb having a second size greater than the first size. For example, a first rack RG1 and a second rack RG2 may be disposed on the second rotary gear RGb. The first rotary gear RGa may be connected (or engaged) between the first rack RG1 and the second rack RG2. Furthermore, the gear height (or tooth height) of the first rotary gear RGa may be implemented to exceed the maximum lift height (or distance) of each of the racks RG1 and RG2 based on the rotational trajectory RT of each of the fixed links FL1 and FL2.

[0190] The rotational transmission component RTP can transmit the rotational motion of the rotary motor 224 to the pinion PG. The rotational transmission component RTP can reduce the rotational speed of the rotary motor 224 to rotate the pinion PG. For example, the rotational transmission component RTP can transmit the rotation of the first rotary motor 224a, which operates in a first rotational direction, to the pinion PG, and thus, the pinion PG can rotate in the first rotational direction. On the other hand, the rotational transmission component RTP can transmit the rotation of the first rotary motor 224a, which operates in a second rotational direction, to the pinion PG, and thus, the pinion PG can rotate in the second rotational direction.

[0191] According to one embodiment, the rotary transmission component RTP may include a first worm 225a, a first worm wheel WG1, a first spur gear SG1, and a second spur gear SG2.

[0192] The first worm gear 225a can be connected to the drive shaft of the first rotary motor 224a. The first worm gear 225a can rotate in a first rotational direction based on the rotation of the first rotary motor 224a performed in a first rotational direction, or it can rotate in a second rotational direction based on the rotation of the first rotary motor 224a performed in a second rotational direction.

[0193] The first worm gear WG1 can be connected (or engaged) to the first worm 225a and can rotate based on the rotational movement of the first worm 225a. For example, when the first worm 225a rotates once, the first worm gear WG1 can rotate one tooth. The rotation axis direction of the first worm gear WG1 can be perpendicular to the rotation axis direction of the first worm 225a. For example, the rotation axis direction of the first worm 225a can be parallel to the second direction Y, and the rotation axis direction of the first worm gear WG1 can be parallel to the thickness direction Z of the back cover 120.

[0194] According to one embodiment, the first worm gear WG1 may include a dual-gear structure comprising a lower worm gear having a first size and an upper worm gear having a second size smaller than the first size. For example, in the first worm gear WG1 with the dual-gear structure, the lower worm gear may be connected (or meshed) to a first worm 225a, and the upper worm gear may be connected (or meshed) to a first spur gear SG1.

[0195] The first spur gear SG1 can be connected (or meshed) to the first worm gear WG1, and can perform rotational motion in the opposite direction to the rotational motion of the first worm gear WG1. For example, the first spur gear SG1 can be connected (or meshed) between the upper worm gear of the first worm gear WG1 and the second spur gear SG2.

[0196] The second spur gear SG2 can be connected (or meshed) to the first spur gear SG1 and can also be connected (or meshed) to the pinion PG. The second spur gear SG2 can perform rotational motion in the opposite direction to the rotational motion of the first spur gear SG1, so as to allow the pinion PG to perform rotational motion.

[0197] According to one embodiment, the second spur gear SG2 may include a dual-gear structure comprising a lower spur gear having a first size and an upper spur gear having a second size larger than the first size. For example, in the second spur gear SG2 with the dual-gear structure, the lower spur gear may be connected (or meshed) to the second rotating gear RGb of the pinion PG, and the upper spur gear may be connected (or meshed) to the first spur gear SG1.

[0198] The rotational transmission component RTP can transmit the rotation of the second rotary motor 224b, which operates in the first rotational direction, to the pinion PG, and thus cause the pinion PG to rotate in the first rotational direction. Conversely, the rotational transmission component RTP can also transmit the rotation of the second rotary motor 224b, which operates in the second rotational direction, to the pinion PG, and thus cause the pinion PG to rotate in the second rotational direction. For this purpose, according to one embodiment, the rotational transmission component RTP may include a second worm 225b, a second worm gear WG2, a third spur gear SG3, and a fourth spur gear SG4.

[0199] The second worm gear 225b can be connected to the drive shaft of the second rotary motor 224b. The second worm gear 225b can rotate in a first rotational direction based on the rotation of the second rotary motor 224b performed in a first rotational direction, or it can rotate in a second rotational direction based on the rotation of the second rotary motor 224b performed in a second rotational direction.

[0200] The second worm gear WG2 can be connected (or engaged) to the second worm 225b and can rotate based on the rotational movement of the second worm 225b. For example, when the second worm 225b rotates once, the second worm gear WG2 can rotate one tooth. The rotation axis direction of the second worm gear WG2 can be perpendicular to the rotation axis direction of the second worm 225b. For example, the rotation axis direction of the second worm 225b can be parallel to the second direction Y, and the rotation axis direction of the second worm gear WG2 can be parallel to the thickness direction Z of the back cover 120.

[0201] According to one embodiment, the second worm gear WG2 may include a dual-gear structure comprising a lower worm gear having a first size and an upper worm gear having a second size smaller than the first size. For example, in the second worm gear WG2 with the dual-gear structure, the lower worm gear may be connected (or engaged) to the second worm 225b, and the upper worm gear may be connected (or engaged) to the third spur gear SG3.

[0202] The third spur gear SG3 can be connected (or meshed) to the second worm gear WG2, and can perform rotational motion in the opposite direction to the rotational motion of the second worm gear WG2. For example, the third spur gear SG3 can be connected (or meshed) between the upper worm gear of the second worm gear WG2 and the fourth spur gear SG4.

[0203] The fourth spur gear SG4 can be connected (or meshed) with the third spur gear SG3, and can also be connected (or meshed) with the pinion PG. The fourth spur gear SG4 can perform rotational motion in the opposite direction to the rotational motion of the third spur gear SG3, so as to allow the pinion PG to perform rotational motion.

[0204] According to one embodiment, the fourth spur gear SG4 may include a dual-gear structure comprising a lower spur gear having a first size and an upper spur gear having a second size larger than the first size. For example, in the fourth spur gear SG4 with the dual-gear structure, the lower spur gear may be connected (or meshed) to the second rotating gear RGb of the pinion PG, and the upper spur gear may be connected (or meshed) to the third spur gear SG3.

[0205] The driver 220 of the curvature variation unit 200 according to an embodiment of the present disclosure may further include a guide rail 226.

[0206] The guide rail 226 can be disposed between the support plate 221 and the racks RG1 and RG2 and can guide the linear motion of each of the racks RG1 and RG2.

[0207] According to one embodiment, the guide rail 226 may include a first guide rail 226a disposed between the support plate 221 and the first rack RG1 and a second guide rail 226b disposed between the support plate 221 and the second rack RG2.

[0208] The first guide rail 226a can be disposed on the support plate 221 to include a guide groove. In this case, the first rack RG1 may include a sliding protrusion that is slidably inserted into the guide groove of the first guide rail 226a. Therefore, the first rack RG1 can perform linear motion on the first guide rail 226a based on the rotation of the pinion PG.

[0209] The second guide rail 226b can be disposed on the support plate 221 to include a guide groove. In this case, the second rack RG2 may include a sliding protrusion that slidably inserts into the guide groove of the second guide rail 226b. Therefore, the second rack RG2 can perform linear motion on the second guide rail 226b based on the rotation of the pinion PG.

[0210] The driver 220 of the curvature variation unit 200 according to the embodiments of the present disclosure may further include a limit switch unit 227.

[0211] Limit switch unit 227 can be disposed on support plate 221 adjacent to racks RG1 and RG2, and can limit the maximum linear movement distance of each of racks RG1 and RG2. For example, limit switch unit 227 can be implemented to limit the maximum linear movement distance of each of racks RG1 and RG2 based on physical contact with racks RG1 and RG2.

[0212] According to one embodiment, the limit switch unit 227 may include a first limit switch unit 227a and a second limit switch unit 227b.

[0213] The first limit switch unit 227a can limit the maximum linear movement distance of the first rack RG1 based on the first linear direction Y+. The first limit switch unit 227a can limit the maximum rotation angle of the arc member 210 or limit the maximum curvature of the display unit 100.

[0214] According to one embodiment, the first limit switch unit 227a may include a first limit switch LS1 disposed adjacent to the first arcuate member 211 on the support plate 221 and a first stop SP1 protruding from the outer surface of the first rack RG1. When the first limit switch LS1 physically contacts the first stop SP1 disposed in the first rack RG1 performing linear motion along the first linear direction Y+, the first limit switch LS1 can generate a first limit signal and can provide the first limit signal to the curvature change control circuit. The curvature change control circuit can stop the rotation of the rotary motor 224 in response to the first limit signal provided from the first limit switch LS1.

[0215] The second limit switch unit 227b can limit the maximum linear movement distance of the second rack RG2 based on the second linear direction Y-.

[0216] According to one embodiment, the second limit switch unit 227b may include a second limit switch LS2 disposed on a support plate 221 adjacent to the pinion PG and a second stop SP2 protruding from the outer surface of the second rack RG2. When the second limit switch LS2 physically contacts the second stop SP2 disposed in the second rack RG2 which performs linear motion along the first linear direction Y+, the second limit switch LS2 can generate a second limit signal and provide the second limit signal to the curvature change control circuit. The curvature change control circuit can stop the rotation of the rotary motor 224 in response to the second limit signal provided from the second limit switch LS2.

[0217] Figure 12A This is a cross-sectional view showing the planar shape of a display device according to an embodiment of the present disclosure, and Figure 12B This is a cross-sectional view showing the curvature variation state of a display device according to an embodiment of the present disclosure.

[0218] Reference Figure 12A In the display device according to this disclosure, the display unit 100 may be arranged (or implemented) in a planar shape having a curvature R0 of 0 (zero). For example, as Figure 8 As shown, the rotary motor 224 of the curvature change unit 200 can be in a state where it stops rotating based on the second limit signal of the second limit switch unit 227b.

[0219] In response to user actions, such as Figure 1 , Figure 2 and Figure 12B As shown, the display unit 100, which has a planar shape, can be configured (or implemented) in a curved shape with a curvature R1 that is not zero. For example, as Figure 8As shown, in a state where it is laid parallel to the rear surface of the display unit 100, based on user operation, the arc-shaped member 210 of the curvature changing unit 200 can rotate a maximum of 90 degrees at a fixed position based on the rotational movement of the rotary motor 224, and thus can stand upright in the thickness direction Z of the display unit 100. Furthermore, the pressure generated at the end of the arc-shaped member 210, which stands upright by rotation, can be applied to the display unit 100 through the fixed bracket 240, so that the two side portions of the display unit 100 can protrude in the forward direction FD relative to the central portion of the display device. As a result, based on the rotational movement of the arc-shaped member 210 standing in the thickness direction Z of the display unit 100, the two side portions of the display unit 100 can protrude in the forward direction FD relative to the central portion of the display device; therefore, the display unit 100 can change its curved shape with a curvature R1 that is not zero. For example, as... Figure 8 As shown, the rotary motor 224 of the curvature change unit 200, which changes the display unit 100 into a curved shape, can stop rotating based on the first limit signal of the first limit switch unit 227a.

[0220] On the other hand, such as Figure 8 As shown, when the display unit 100 is standing along the thickness direction Z, based on the user's operation, the arc member 210 of the curvature change unit 200 can rotate up to 90 degrees at a fixed position based on the rotational motion of the rotary motor 224, and thus can be placed parallel to the rear surface of the display unit 100, so that the display unit 100 can be set (or implemented) to a planar shape with a curvature R0 of 0 (zero) based on the elastic restoring force.

[0221] Figure 13 yes Figure 6 The diagram shown is an enlarged view of region 'B4' and is used to describe the slit according to this disclosure.

[0222] Reference Figure 6 , Figure 7 and Figure 13 The display device according to this disclosure may also include a slit 125.

[0223] The slit 125 can be implemented to reduce the stress applied to the vibrating unit 500 when the curvature of the display unit 100 changes. In addition, the slit 125 can be implemented to minimize the degradation of sound quality caused by position-based air gap (AG) changes (or deviations) between the display panel 110 and the back cover 120 based on the curvature of the display unit 100.

[0224] The slit 125 may be disposed in the rear cover 120 and overlap with the vibration unit 500. According to one embodiment, the slit 125 may be implemented to pass through the rear cover 120 and overlap with the area between a pair of sound generating units 511 and 513.

[0225] The slit 125 may have a length parallel to the second direction Y. The length of the slit 125 may be longer than the length of each of the sound generating units 511 and 513. One end of the slit 125 may be positioned between a pair of sound generating units 511 and 513.

[0226] The slit 125 can be formed to pass perpendicularly through the rear cover 120 in the thickness direction Z of the display unit 100, and can allow the air gap AG (or internal air gap) between the display panel 110 and the rear cover 120 to communicate with the rear exterior (or external air gap) of the rear cover 120. The slit 125 allows the air gap AG between the display panel 110 and the rear cover 120 to communicate with the external air gap, so that when the display panel 110 vibrates (or shakes), air can flow smoothly between the internal air gap AG and the external air gap. Therefore, the display panel 110 can vibrate stably, and thus, the frequency characteristics and sound pressure characteristics of the bass band based on the vibration of the display panel 110 can be increased. For example, the frequency of the bass band can be 800Hz or lower, but is not limited thereto.

[0227] Figure 14 This is a diagram used to describe a curvature variation unit 200 according to another embodiment of the present disclosure. Figure 15 yes Figure 14 A magnified view of area 'B5' shown. Figure 16 yes Figure 15 An enlarged view of area 'B6' is shown, and Figure 17 yes Figure 15 An enlarged view of area 'B7' is shown. The attached diagram illustrates... Figures 1 to 13 The example shown is an example of a modified curvature variation unit for a display device. Therefore, in the following text, only the curvature variation unit will be described in detail, and in other elements, the same reference numerals denote the same elements, and repeated descriptions of them will be omitted or briefly given.

[0228] Reference Figures 14 to 17 According to another embodiment of the present disclosure, the curvature variation unit 200 may include an arcuate member 210, a guide 230, a joint member 250, and a driver 270.

[0229] The arc-shaped member 210 may be disposed on the rear surface of the display unit 100. For example, the arc-shaped member 210 may be disposed on the rear surface of the rear cover 120. The arc-shaped member 210 may be rotated based on the drive of the driver 270, and thus may move the two side portions of the display unit 100 in the forward or rearward direction relative to the display device.

[0230] According to one embodiment, the arcuate member 210 may include a first arcuate member 211 and a second arcuate member 213.

[0231] In addition to the first arc-shaped member 211 and the second arc-shaped member 213 being disposed parallel to each other on the rear surface of the rear cover 120, according to this embodiment, the first arc-shaped member 211 and the second arc-shaped member 213 can be coupled with... Figures 4 to 6 The first arc-shaped component 211 and the second arc-shaped component 213 shown are the same.

[0232] Each of the first arcuate member 211 and the second arcuate member 213 may have a curved shape that protrudes toward the first long side of the display unit 100.

[0233] The central portion (or the central length portion) of the first arc-shaped member 211 may be adjacent to the first long side of the display unit 100, and the two ends (or the two side portions) of the first arc-shaped member 211 may be adjacent to the vertical center line VCL of the display unit 100.

[0234] The central portion (or the central length portion) of the second arc-shaped member 213 may be adjacent to the rear central portion of the display unit 100, and the two ends (or the two side portions) of the second arc-shaped member 213 may be adjacent to the lower left and lower right corner portions of the display unit 100.

[0235] Driven by the driver 270, the first arc member 211 and the second arc member 213 can move in the same straight line direction while rotating in the same rotational direction.

[0236] The guide 230 can be disposed parallel to the second direction Y on the rear surface of the display unit 100, and can movably support each of the first central portion and the second central portion of the arcuate member 210. The guide 230 can prevent a portion of the arcuate member 210 from disengaging when the arcuate member 210, which has a curved shape, rotates. Therefore, the arcuate member 210 can be movably disposed in the separation space between the rear surface of the display unit 100 and the central portion of the guide 230, and thus the guide 230 can prevent a portion of the arcuate member 210 from disengaging when it rotates, and by using the guide 230 as a support, the two side portions of the display unit 100 can protrude in the forward direction relative to the display device.

[0237] According to one embodiment, the guide 230 can be disposed in the third rear region RA3 and the fourth rear region RA4 of the display unit 100, and can movably support each of the first arcuate member 211 and the second arcuate member 213.

[0238] According to one embodiment, the guide 230 may include a first guide member 235 to a fourth guide member 238.

[0239] The first guide member 235 can be disposed in the third rear region RA3 of the display unit 100 and can movably support the first central portion of the first arc-shaped member 211.

[0240] One side and the other side of the first guide member 235 can be fixed to the first rear region RA1 of the display unit 100, with the first arcuate member 211 located therebetween. For example, each of the one side and the other side of the first guide member 235 can be fixed to the first rear region RA1 of the rear cover 120 by means of a connecting member such as a screw or bolt.

[0241] The central portion of the first guide member 235 between one side and the other can be disposed in the third rear region RA3 of the rear cover 120 to intersect with the first central portion of the first arcuate member 211. Relative to the height of each of the one side and the other side of the first guide member 235, the central portion of the first guide member 235 can be separated from the rear surface of the rear cover 120 by a distance greater than the diameter of the first arcuate member 211. Therefore, the first central portion of the first arcuate member 211 can move within the separation space between the first central portion of the first guide member 235 and the rear surface of the rear cover 120.

[0242] The second guide member 236 can be disposed in the fourth rear region RA4 of the display unit 100 and can movably support the second central portion of the first arcuate member 211. Except that the second guide member 236 is disposed in the fourth rear region RA4 of the display unit 100 and can movably support the second central portion of the first arcuate member 211, the second guide member 236 according to this embodiment can be substantially the same as the first guide member 235, so its repeated description is omitted.

[0243] The third guide member 237 can be disposed in the third rear region RA3 of the display unit 100 and can movably support the first central portion of the second arcuate member 213. Except that the third guide member 237 is disposed in the third rear region RA3 of the display unit 100 and movably supports the first central portion of the second arcuate member 213, the third guide member 237 according to this embodiment can be substantially the same as the first guide member 235, so its repeated description is omitted.

[0244] The fourth guide member 238 can be disposed in the fourth rear region RA4 of the display unit 100 and can movably support the second central portion of the second arcuate member 213. Apart from being disposed in the fourth rear region RA4 of the display unit 100 and movably supporting the second central portion of the second arcuate member 213, the fourth guide member 238 according to this embodiment can be substantially the same as the first guide member 235, therefore its repeated description is omitted.

[0245] The joining member 250 can be rotatably disposed in each of the third rear region RA3 and the fourth rear region RA4 of the display unit 100, and can rotatably support both ends of the arcuate member 210. For example, one end of the joining member 250 can be rotatably disposed in each of the third rear region RA3 and the fourth rear region RA4 of the display unit 100. The joining member 250 can rotate based on the movement and rotation of the arcuate member 210 while transmitting the pressure generated at both ends of the arcuate member 210 to each of the third rear region RA3 and the fourth rear region RA4 of the display unit 100, so that the two side portions of the display unit 100 can protrude in the forward direction relative to the central portion of the display device.

[0246] According to one embodiment, the joining member 250 may include a first joining member to a fourth joining member 251, 253, 255 and 257.

[0247] The first engaging member 251 may be rotatably disposed in the third rear region RA3 of the display unit 100 and may rotatably support one end (or the first end) of the first arcuate member 211. According to one embodiment, the first engaging member 251 may include a pin portion and a ring portion, the pin portion being inserted into one end of the first arcuate member 211, and the ring portion being connected to the end of the pin portion and rotatably coupled to the third rear region RA3 of the display unit 100. The first engaging member 251 may press the third rear region RA3 of the display unit 100 based on pressure applied from one end of the first arcuate member 211.

[0248] The second engaging member 253 may be rotatably disposed in the fourth rear region RA4 of the display unit 100 and may rotatably support the other end (or second end) of the first arcuate member 211. According to one embodiment, the second engaging member 253 may include a pin portion and a ring portion, the pin portion being inserted into the other end of the first arcuate member 211, and the ring portion being connected to the end of the pin portion and rotatably connected to the fourth rear region RA4 of the display unit 100. The second engaging member 253 may press the fourth rear region RA4 of the display unit 100 based on pressure applied from the other end of the first arcuate member 211.

[0249] The third engaging member 255 may be rotatably disposed in the third rear region RA3 of the display unit 100 and may rotatably support one end (or the first end) of the second arcuate member 213. According to one embodiment, the third engaging member 255 may include a pin portion and a ring portion, the pin portion being inserted into one end of the second arcuate member 213, and the ring portion being connected to the end of the pin portion and rotatably connected to the third rear region RA3 of the display unit 100. The third engaging member 255 may press the third rear region RA3 of the display unit 100 based on pressure applied from one end of the second arcuate member 213.

[0250] The fourth engaging member 257 is rotatably disposed in the fourth rear region RA4 of the display unit 100 and rotatably supports the other end of the second arcuate member 213. According to one embodiment, the fourth engaging member 257 may include a pin portion and a ring portion, the pin portion being inserted into the other end of the second arcuate member 213, and the ring portion being connected to the end of the pin portion and rotatably connected to the fourth rear region RA4 of the display unit 100. The fourth engaging member 257 can press the fourth rear region RA4 of the display unit 100 based on pressure applied from the other end of the second arcuate member 213.

[0251] According to another embodiment of this disclosure, the curvature variation unit 200 may further include a fixed bracket 260.

[0252] The fixing bracket 260 can be disposed in each of the third rear region RA3 and the fourth rear region RA4 of the display unit 100 and can rotatably support the connecting member 250. For example, the fixing bracket 260 can be disposed in each of the third rear region RA3 and the fourth rear region RA4 of the display unit 100 and can be coupled (or fixed) to the rear surface of the rear cover 120. When each of the second arcuate member 213 and the first arcuate member 211 rotates, the fixing bracket 260 can transmit the pressure generated at the ends of each of the first arcuate member 211 and the second arcuate member to the display unit 100. In this case, the fixing bracket 260 can allow the ends of each of the first arcuate member 211 and the second arcuate member 213 to make surface contact with the display unit 100, thus preventing local damage to the display unit 100 caused by local point contact between the ends of each of the first arcuate member 211 and the second arcuate member 213 and the display unit 100.

[0253] According to one embodiment, the fixing bracket 260 may include a first fixing bracket 261 and a second fixing bracket 263.

[0254] The first fixing bracket 261 may be disposed on the third rear edge portion of the display unit 100 and may rotatably support the other side (or ring portion) of the connecting member 250. For example, the first fixing bracket 261 may be fixed to the third rear region RA3 adjacent to the right edge portion of the rear cover 120 and may rotatably support the other side (or ring portion) of each of the first connecting member 251 and the third connecting member 255.

[0255] The second fixing bracket 263 may be disposed on the fourth rear edge portion of the display unit 100 and may rotatably support the other side (or ring portion) of the connecting member 250. For example, the second fixing bracket 263 may be fixed to the fourth rear region RA4 adjacent to the left edge portion of the rear cover 120 and may rotatably support the other side (or ring portion) of each of the second connecting member 253 and the fourth connecting member 257.

[0256] The driver 270 may be disposed in the rear central region of the display unit 100. The driver 270 may be disposed between the first arc-shaped member 211 and the second arc-shaped member 213.

[0257] The actuator 270 can simultaneously move the first arc-shaped member 211 and the second arc-shaped member 213 while simultaneously rotating the first arc-shaped member 211 and the second arc-shaped member 213. The actuator 270 can simultaneously move the first arc-shaped member 211 and the second arc-shaped member 213 along the same linear direction while simultaneously rotating the first arc-shaped member 211 and the second arc-shaped member 213 in the same rotational direction. For example, the actuator 270 can rotate the first arc-shaped member 211 by a maximum of 90 degrees in the first rotational direction while moving it linearly, and simultaneously rotate the second arc-shaped member 213 by a maximum of 90 degrees in the first rotational direction while moving it linearly. On the other hand, the actuator 270 can rotate the first arc-shaped member 211 by a maximum of 90 degrees in the second rotational direction while moving it linearly, and simultaneously rotate the second arc-shaped member 213 by a maximum of 90 degrees in the second rotational direction while moving it linearly.

[0258] The driver 270 can simultaneously move the first arc member 211 and the second arc member 213 by linear motion based on the rotational motion of the rotary motor, while simultaneously rotating the first arc member 211 and the second arc member 213.

[0259] According to one embodiment, the driver 270 may include a guide plate 271, a retainer 272, a retainer link 273, a slider 274, at least one rotary motor 275, and a gear assembly 276.

[0260] The guide plate 271 can be configured to overlap with the rear central portion of the display unit 100. For example, the guide plate 271 can be implemented with a specific width parallel to a first direction X and a specific length parallel to a second direction Y, and can be disposed on (or coupled to) the rear surface of the rear cover 120 to overlap with the central portion (or length central portion) of each of the first arcuate member 211 and the second arcuate member 213. The guide plate 271 can support at least one rotary motor 275 and gear assembly 276, and can slidably support the retainer 272, retainer link 273, and slider 274.

[0261] According to one embodiment, the guide plate 271 may include a track plate 271a and a sliding plate 271b.

[0262] The track plate 271a can be attached to the rear surface of the rear cover 120 to overlap with the rear central portion of the display unit 100, and can slidably support the sliding plate 271b. The track plate 271a may include a guide rail for guiding the linear movement of the sliding plate 271b.

[0263] The sliding plate 271b can be slidably connected to the track plate 271a. The sliding plate 271b may include a guide groove into which the guide rail of the track plate 271a is inserted. The sliding plate 271b can slidably support the retainer 272, the retainer link 273, and the slider 274.

[0264] The retainer 272 can be connected to the sliding plate 271b of the guide plate 271 and can rotatably support the central portion of the arcuate member 210. Therefore, the central portion of the arcuate member 210 can be rotatably disposed between the sliding plate 271b and the retainer 272. Additionally, according to one embodiment, the driver 270 may also include a bearing disposed between the central portion of the arcuate member 210 and the retainer 272.

[0265] According to one embodiment, the retainer 272 may include a first retainer 272a and a second retainer 272b, the first retainer 272a being coupled to a sliding plate 271b of a guide plate 271 to rotatably support the central portion of a first arcuate member 211, and the second retainer 272b being coupled to the guide plate 271 to rotatably support the central portion of a second arcuate member 213.

[0266] According to one embodiment, both ends of each of the first retainer 272a and the second retainer 272b can be connected to the sliding plate 271b by a connecting member such as a screw or bolt.

[0267] According to one embodiment, the driver 270 may further include a first bearing disposed between the central portion of the first arcuate member 211 and the first retainer 272a, and a second bearing disposed between the central portion of the second arcuate member 213 and the second retainer 272b.

[0268] The retainer link 273 can rotatably support the central portion of the arcuate member 210. For example, the retainer link 273 may include a through-hole through which the arcuate member 210 passes. As another example, the retainer link 273 may include a U-shaped cross-section structure surrounding a portion of the arcuate member 210. For example, the retainer link 273 may be configured to surround a portion of the retainer 272 and may be secured to the retainer 272 by a fixing member FM such as a screw or bolt.

[0269] According to one embodiment, the retainer link 273 may include a first retainer link HL1 that rotatably supports the central portion of the first arcuate member 211 and a second retainer link HL2 that rotatably supports the central portion of the second arcuate member 213.

[0270] The first retainer link HL1 may include a U-shaped cross-section structure surrounding a portion of the first arcuate member 211. For example, the first retainer link HL1 may be configured to surround a portion of the first retainer 272a and may be secured to the first retainer 272a by a fastening member FM such as a screw or bolt.

[0271] The second retainer link HL2 may include a U-shaped cross-section structure surrounding a portion of the second arcuate member 213. For example, the second retainer link HL2 may be configured to surround a portion of the second retainer 272b and may be secured to the second retainer 272b by a fastening member FM such as a screw or bolt.

[0272] The slider 274 can be connected to the retainer link 273 and can allow the retainer link 273 to perform linear motion in the second direction Y based on the drive of the driver 270.

[0273] According to one embodiment, slider 274 can be rotatably connected to a first retainer link HL1, and furthermore, can be rotatably connected to a second retainer link HL2. For example, one end of slider 274 can be rotatably connected to the first retainer link HL1 via a first hinge pin HP1. The other end of slider 274 can be rotatably connected to the second retainer link HL2 via a second hinge pin HP2. Slider 274 allows the first retainer link HL1 and the second retainer link HL2 to simultaneously perform linear motion in the same direction based on the drive of driver 270.

[0274] According to one embodiment, slider 274 may include rack RG.

[0275] According to one embodiment, the rack RG can be implemented on one side surface and another side surface of the slider 274 parallel to the second direction Y.

[0276] According to one embodiment, the rack RG may include a first rack RG1 implemented on one side surface (or first outer surface) of the slider 274 and a second rack RG2 implemented on the other side surface (or second outer surface) of the slider 274.

[0277] At least one rotary motor 275 may be located in the rear central region of the display unit 100 and may be supported by a guide plate 271. At least one rotary motor 275 may provide rotational force to the gear assembly 276 in response to user operation for changing the curvature of the display unit 100.

[0278] The driver 270 according to this embodiment may include a first rotary motor 275a and a second rotary motor 275b (or a pair of rotary motors) for maintaining balance, reducing noise and ensuring a margin of driving force (or rotational force).

[0279] The first rotary motor 275a and the second rotary motor 275b can be arranged parallel to each other, with the gear assembly 276 located between them. The drive shaft (rotation shaft) of each of the first rotary motor 275a and the second rotary motor 275b can be arranged adjacent to the first arcuate member 211. In this case, the first rotary motor 275a and the second rotary motor 275b can rotate in the same direction.

[0280] Gear assembly 276 may be mounted on support plate 221 and may be connected to rotary motor 275. Gear assembly 276 may allow slider 274 to perform linear motion based on the rotational motion of rotary motor 275, and may cause arcuate member 210 to rotate based on the movement of retainer link 273 according to the linear motion of slider 274. For example, gear assembly 276 may allow slider 274 to perform linear motion based on the rotational motion of rotary motor 275, and therefore, each of the first arcuate member 211 and the second arcuate member 213 may be rotated simultaneously while each of the first arcuate member 211 and the second arcuate member 213 is moved simultaneously. Gear assembly 276 may be referred to as a gearbox or reduction gear component, but is not limited thereto.

[0281] According to one embodiment, the gear assembly 276 may include a first pinion PG1, a second pinion PG2, and a rotational transmission component RTP.

[0282] The first pinion PG1 can be connected (or engaged) to the first rack RG1 of the slider 274. The first pinion PG1 can cause the first rack RG1 to perform linear motion based on rotational motion. For example, the first pinion PG1 can rotate in a first rotational direction to allow the first rack RG1 to perform linear motion in a first linear direction Y+ parallel to the second direction Y. On the other hand, the first pinion PG1 can rotate in a second rotational direction to allow the first rack RG1 to perform linear motion in a second linear direction Y-.

[0283] The second pinion PG2 can be connected (or engaged) to the second rack RG2 of the slider 274. The second pinion PG2 can cause the second rack RG2 to perform linear motion based on rotational motion. For example, the second pinion PG2 can rotate in a second rotational direction to allow the second rack RG2 to perform linear motion in a first linear direction Y+. On the other hand, the second pinion PG2 can rotate in a first rotational direction to allow the second rack RG2 to perform linear motion in a second linear direction Y-.

[0284] The rotational transmission component RTP can transmit the rotational motion of the rotary motor 275 to the pinion PG. The rotational transmission component RTP can reduce the rotational speed of the rotary motor 275 to rotate the pinion PG. For example, the rotational transmission component RTP can transmit the rotational motion of the first rotary motor 275a to the pinion PG, and simultaneously transmit the rotational motion of the second rotary motor 275b to the second pinion PG2.

[0285] According to one embodiment, the rotary transmission component RTP may include a first worm 276a, a first worm wheel WG1, a first spur gear SG1, a second worm 276b, a second worm wheel WG2, and a second spur gear SG2.

[0286] The first worm gear 276a can be connected to the drive shaft of the first rotary motor 275a. The first worm gear 276a can rotate in a first rotational direction based on the rotation of the first rotary motor 275a performed in a first rotational direction, or it can rotate in a second rotational direction based on the rotation of the first rotary motor 275a performed in a second rotational direction.

[0287] The first worm gear WG1 can be connected (or engaged) to the first worm 276a and can rotate based on the rotational movement of the first worm 276a. For example, when the first worm 276a rotates once, the first worm gear WG1 can rotate one tooth. The rotation axis direction of the first worm gear WG1 can be perpendicular to the rotation axis direction of the first worm 276a. For example, the rotation axis direction of the first worm 276a can be parallel to the second direction Y, and the rotation axis direction of the first worm gear WG1 can be parallel to the thickness direction Z of the rear cover 120.

[0288] According to one embodiment, the first worm gear WG1 may include a dual-gear structure comprising a lower worm gear having a first size and an upper worm gear having a second size smaller than the first size. For example, in the first worm gear WG1 with the dual-gear structure, the lower worm gear may be connected (or meshed) to the first worm 276a, and the upper worm gear may be connected (or meshed) to the first spur gear SG1.

[0289] The first spur gear SG1 can be connected (or meshed) with the first worm gear WG1, and can perform rotational motion in the opposite direction to the rotational motion direction of the first worm gear WG1.

[0290] According to one embodiment, the first spur gear SG1 may include a dual-gear structure comprising a lower spur gear having a first size and an upper spur gear having a second size smaller than the first size. For example, in the first spur gear SG1 with the dual-gear structure, the lower spur gear may be connected (or meshed) to the upper worm gear of the first worm gear WG1, and the upper spur gear may be connected (or meshed) to the first pinion PG1.

[0291] The second worm gear 276b can be connected to the drive shaft of the second rotary motor 275b. The second worm gear 276b can rotate in a first rotational direction based on the rotation of the second rotary motor 275b performed in a first rotational direction, or it can rotate in a second rotational direction based on the rotation of the second rotary motor 275b performed in a second rotational direction.

[0292] The second worm gear WG2 can be connected (or engaged) to the second worm 276b and can rotate based on the rotational movement of the second worm 276b. For example, when the second worm 276b rotates once, the second worm gear WG2 can rotate one tooth. The rotation axis direction of the second worm gear WG2 can be perpendicular to the rotation axis direction of the second worm 276b. For example, the rotation axis direction of the second worm 276b can be parallel to the second direction Y, and the rotation axis direction of the second worm gear WG2 can be parallel to the thickness direction Z of the back cover 120.

[0293] According to one embodiment, the second worm gear WG2 may include a dual-gear structure comprising a lower worm gear having a first size and an upper worm gear having a second size smaller than the first size. For example, in the second worm gear WG2 with the dual-gear structure, the lower worm gear may be connected (or engaged) to the second worm 276b, and the upper worm gear may be connected (or engaged) to the second spur gear SG2.

[0294] The second spur gear SG2 can be connected (or meshed) to the second worm gear WG2, and can perform rotational motion in the opposite direction to the rotational motion of the second worm gear WG2.

[0295] According to one embodiment, the second spur gear SG2 may include a dual-gear structure comprising a lower spur gear having a first size and an upper spur gear having a second size smaller than the first size. For example, in the second spur gear SG2 with the dual-gear structure, the lower spur gear may be connected (or meshed) to the upper worm gear of the second worm gear WG2, and the upper spur gear may be connected (or meshed) to the second pinion PG2.

[0296] Alternatively, the driver 270 according to this embodiment can be implemented using only the first rotary motor 275a, and in this case, each of the second rack RG2, the second rotary motor 275b, the second pinion PG2, the second worm 276b, the second worm wheel WG2, and the second spur gear SG2 described above can be omitted.

[0297] The driver 270 of the curvature variation unit 200 according to the embodiments of the present disclosure may further include a limit switch unit 277.

[0298] Limit switch unit 277 can be disposed on guide plate 271 and can limit the linear movement distance of slider 274. For example, limit switch unit 277 can be implemented to limit the maximum linear movement distance of rack RG based on physical contact with slider 274.

[0299] According to one embodiment, the limit switch unit 277 may include a first limit switch unit 277a and a second limit switch unit 277b.

[0300] The first limit switch unit 277a can limit the maximum linear movement distance of the slider 274 based on the second linear direction Y-. The first limit switch unit 277a can limit the maximum rotation angle of the arc member 210 or the maximum curvature of the display unit 100.

[0301] According to one embodiment, the first limit switch unit 277a may include a first limit switch LS1 and a first stopper SP1.

[0302] The first limit switch LS1 can be fixed to the guide plate 271 and overlap with the through slit 274a passing through the slider 274, and can be disposed in the through slit 274a. For example, the first limit switch LS1 can be disposed on the track plate 271a of the guide plate 271 at a certain distance from the first arc-shaped member 211, and can be disposed in the through slit 274a passing through the sliding plate 271b and the slider 274.

[0303] The first stopper SP1 may be a first short sidewall of the sidewall of the through slit 274a in the slider 274, which is adjacent to the first arcuate member 211 and parallel to the first direction X.

[0304] When the first limit switch LS1 physically contacts the first short sidewall of the through slit 274a disposed in the slider 274 that performs linear motion along the second linear direction Y, the first limit switch LS1 can generate a first limit signal and provide the first limit signal to the curvature change control circuit. The curvature change control circuit can stop the rotation of the rotary motor 275 in response to the first limit signal provided from the first limit switch LS1.

[0305] The second limit switch unit 277b can limit the maximum linear movement distance of the slider 274 based on the first linear direction Y+. According to one embodiment, the second limit switch unit 277b may include a second limit switch LS2 and a second stop SP2.

[0306] The second limit switch LS2 can be fixed to the guide plate 271 between the first limit switch LS1 and the second arc-shaped member 213, and can be disposed in the through slit 274a. For example, the second limit switch LS2 can be disposed on the track plate 271a of the guide plate 271 adjacent to the first limit switch LS1, and can be disposed in the through slit 274a passing through the sliding plate 271b and the slider 274.

[0307] The second stop SP2 may be a second short sidewall of the sidewall of the through slit 274a in the slider 274, which is adjacent to the second arcuate member 213 and parallel to the first direction X.

[0308] When the second limit switch LS2 physically contacts the second short sidewall of the through slit 274a disposed in the slider 274 that performs linear motion along the first linear direction Y+, the second limit switch LS2 can generate a second limit signal and provide the second limit signal to the curvature change control circuit. The curvature change control circuit can stop the rotation of the rotary motor 275 in response to the second limit signal provided from the second limit switch LS2.

[0309] According to another embodiment of this disclosure, the curvature variation unit 200 may further include a gearbox 278.

[0310] The gearbox 278 can be connected to the track plate 271a of the guide plate 271 or the rear surface of the rear cover 120 and can support the drive 270.

[0311] The gearbox 278 can be supported by or mounted on the support pillars of the bracket. For this purpose, the gearbox 278 can include a plurality of mounting coupling members 278a. The plurality of mounting coupling members 278a can be located at each of the upper and lower sides of the gearbox 278, and can include a horizontally symmetrical structure relative to the slider 274.

[0312] Figure 18A This is a cross-sectional view showing the planar shape of a display device according to an embodiment of the present disclosure, and Figure 18B This is a cross-sectional view showing the curvature variation state of a display device according to an embodiment of the present disclosure.

[0313] Reference Figure 18A In the display device according to this disclosure, the display unit 100 may be arranged (or implemented) in a planar shape having a curvature R0 of 0 (zero). For example, as Figure 15 As shown, the rotary motor 275 of the curvature change unit 200 can be in a state where it stops rotating based on the second limit signal of the second limit switch 277b.

[0314] In response to user actions, such as Figure 1 , Figure 2 and Figure 18B As shown, the display unit 100, which has a planar shape, can be configured (or implemented) to have a curved shape with a curvature R1 that is not zero. For example, as Figure 15 As shown, when the slider 274 is placed parallel to the rear surface of the display unit 100, and the slider 274 performs linear motion in the second linear direction Y- based on the rotational motion of the rotary motor 275 according to the user's operation, the arcuate member 210 of the curvature changing unit 200 can rotate up to 90 degrees in the first rotational direction while moving along the second linear direction Y-, and thus can stand in the thickness direction Z of the display unit 100. Furthermore, the pressure generated in the end of the arcuate member 210, which stands by rotation, can be applied to the display unit 100 through the engaging member 250 and the fixing bracket 260, so that the two side portions of the display unit 100 can protrude in the forward direction FD relative to the central portion of the display device. As a result, based on the rotational motion of the arcuate member 210 standing in the thickness direction Z of the display unit 100 and the linear motion of the arcuate member 210, the two side portions of the display unit 100 can protrude in the forward direction FD relative to the central portion of the display device, and therefore, the display unit 100 can change its curved shape with a curvature R1 that is not zero. For example, as... Figure 15 As shown, the rotary motor 275 of the curvature change unit 200, which changes the display unit 100 into a curved shape, can stop rotating according to the first limit signal of the first limit switch 277a.

[0315] On the other hand, such as Figure 15As shown, when the slider 274 moves in the first linear direction Y+ based on the rotational motion of the rotary motor 275 according to the user's operation, the arcuate member 210 of the curvature change unit 200 can rotate up to 90 degrees in the second rotational direction while moving along the first linear direction Y+. Therefore, it can be placed parallel to the rear surface of the display unit 100, so that the display unit 100 can be set (or implemented) in a planar shape with a curvature R0 of 0 (zero) based on the elastic restoring force.

[0316] Figure 19 This is a diagram used to describe a position control unit 700 according to an embodiment of the present disclosure.

[0317] Reference Figure 1 and Figure 19 According to an embodiment of the present disclosure, the position control unit 700 is implemented to raise (Y+) or lower (Y-) the height of the display unit 100 mounted on the bracket 300.

[0318] The position control unit 700 may include a support bracket 710 and a display elevation unit 720.

[0319] The support bracket 710 can be attached to the rear surface of the display unit 100. According to one embodiment, the support bracket 710 can be attached to, for example... Figure 14 and Figure 15 The gearbox 278 of the curvature variation unit 200 is shown disposed on the rear surface of the display unit 100. For example, the support bracket 710 can be connected to the gearbox 278 by fastening members such as screws or bolts, or can support the gearbox 278. The fastening members can be connected to a plurality of mounting connection parts 278a disposed in the gearbox 278.

[0320] The monitor lifting unit 720 can be mounted on the column 330 of the bracket 300 and can be connected to the support bracket 710. The monitor lifting unit 720 can raise (Y+) or lower (Y-) the support bracket 710 based on user operation performed on the lifting control knob 727 to adjust the height of the display unit 100 mounted on the support bracket 710. For example, the monitor lifting unit 720 can raise or lower the support bracket 710 by using a screw mechanism to raise or lower the height of the display unit 100 at the reference position Pref.

[0321] According to one embodiment, the display lifting unit 720 may include a connecting frame 721, a lifting shaft 723, a lifting guide 725, and a lifting control knob 727.

[0322] The connecting frame 721 can be set in the thickness direction Z of the display unit 100, and can pass through the inner wall of the column 330 of the bracket 300 and can be connected to the support bracket 710.

[0323] The lifting shaft 723 can be arranged parallel to the second direction Y in the column 330 to facilitate raising and lowering, and can be connected to the connecting frame 721.

[0324] The lifting guide 725 can be disposed parallel to the second direction Y in the column 330 and can guide the lifting shaft 723 to rise or fall. For example, the lifting guide 725 may include a guide rail for guiding the lifting shaft 723 to rise or fall. In this case, the lifting shaft 723 may include a guide groove into which the guide rail of the lifting guide 725 is inserted, and can rise or fall along the guide rail of the lifting guide 725 in the second direction Y.

[0325] The lifting control knob 727 is rotatably mounted on the top surface of the column 330 and can be connected to the upper part of the lifting shaft 723. The lifting control knob 727 can be rotated in a first rotational direction to raise (Y+) the lifting shaft 723 based on user operation, and can be rotated in a second rotational direction to lower (Y-) the lifting shaft 723 based on user operation. For this purpose, the lifting control knob 727 may include a threaded portion 727a, and the lifting shaft 723 may include a threaded hole 723a disposed on its upper part and connected (or engaged) with the threaded portion 727a of the lifting control knob 727.

[0326] The threaded portion 727a of the lifting control knob 727 can rotate based on the rotation of the lifting control knob 727, allowing the lifting shaft 723 to perform linear motion in the second direction Y. For example, when the lifting control knob 727 rotates in the first rotation direction, the threaded portion 727a can rotate in the first rotation direction to linearly move (or raise) the lifting shaft 723 in the second direction Y. On the other hand, when the lifting control knob 727 rotates in the second rotation direction, the threaded portion 727a can rotate in the second rotation direction to linearly move (or lower) the lifting shaft 723 in the second direction Y.

[0327] The position control unit 700 according to an embodiment of the present disclosure can be implemented as a display unit 100 having a vertical state Pv, which is tilted and mounted on a bracket 300 at a specific angle (θ1, θ2). For this purpose, the position control unit 700 may also include a display tilting unit 730.

[0328] The display tilting unit 730 can be disposed between the support bracket 710 and the display lifting unit 720, and can tilt the display unit 100 at a specific angle (θ1, θ2) based on the user's operation.

[0329] According to one embodiment, the display tilt unit 730 may include a tilt housing 731, a support frame 733, a ball nut 735, a tilt control knob 737, and a knob support member 739.

[0330] The inclined housing 731 can be attached to the rear surface of the support bracket 710. For example, the inclined housing 731 can be attached to the rear surface of the support bracket 710 between the support bracket 710 and the column 330 of the bracket 300.

[0331] The support frame 733 can be supported by the connecting frame 721 of the display lifting unit 720 (or connected to the connecting frame 721 of the display lifting unit 720), and can rotatably support the tilt housing 731. The tilt housing 731 can be rotatably supported by the support frame 733 about the tilt axis 732.

[0332] The ball nut 735 (or ball screw nut) can be fixed to the upper interior of the inclined housing 731.

[0333] The tilt control knob 737 may be disposed on the rear surface of the tilt housing 731 and may be connected (or engaged) to the ball nut 735. The tilt control knob 737 may include a ball screw passing through the rear surface of the tilt housing 731 and connected (or engaged) to the ball nut 735.

[0334] The tilt control knob 737 can be rotated in a first rotation direction based on user operation to move the ball nut 735 forward in the thickness direction Z of the display unit 100, and thus tilt the tilt housing 731 about the tilt axis 732 corresponding to the rotation axis by a first angle θ1. For example, in a display unit 100 having a vertical state Pv, when the tilt control knob 737 is rotated in the first rotation direction, the upper part of the display unit 100, except for the lower part, can protrude in the forward direction relative to the display device, and therefore, the display unit 100 can tilt from the vertical state Pv by a first angle θ1.

[0335] On the other hand, the tilt control knob 737 can be rotated in the second rotation direction based on user operation to move the ball nut 735 backward in the thickness direction Z of the display unit 100. Therefore, the tilt housing 731 can be restored from the vertical state Pv to its initial state, or the tilt housing 731 can be tilted about the tilt axis 732 corresponding to the rotation axis by a second angle θ2. For example, in a display unit 100 having a vertical state Pv, when the tilt control knob 737 is rotated in the second rotation direction, the lower part of the display unit 100, excluding the upper part, can protrude in the forward direction relative to the display device, and therefore, the display unit 100 can be tilted from the vertical state Pv by a second angle θ2.

[0336] The knob support member 739 can be attached to or protrude from the upper part of the support frame 733 and rotatably support the tilt control knob 737. The knob support member 739 can rotatably support a protruding shaft protruding from the rear surface of the tilt control knob 737. Therefore, the tilt control knob 737 can not perform linear motion, but can perform rotational motion relative to the knob support member 739 corresponding to the support member at a fixed position, thereby allowing the ball nut 735 to perform linear motion.

[0337] As described above, in a display device including the position control unit 700 according to this embodiment, the height and angle of the display unit 100 can be controlled based on the user's operation, thereby providing a viewing height and viewing angle suitable for the user's preferences.

[0338] Figure 20 This is a diagram used to describe a curvature variation unit 200 according to another embodiment of the present disclosure. Figure 21 yes Figure 20 A magnified view of area 'B8' shown. Figure 22 yes Figure 20 An enlarged view of area 'B9' is shown, and Figure 23 yes Figure 20 An enlarged view of area 'B10' is shown. The attached diagram illustrates... Figures 1 to 13 The example shown is an example of a modified curvature variation unit for a display device. Therefore, in the following text, only the curvature variation unit will be described in detail, and in other elements, the same reference numerals denote the same elements, and repeated descriptions of them will be omitted or briefly given.

[0339] Reference Figures 20 to 23 According to another embodiment of the present disclosure, the curvature variation unit 200 may include an arcuate member 210, a guide 230, and a driver 220.

[0340] The arc-shaped member 210 may be disposed on the rear surface of the display unit 100. For example, the arc-shaped member 210 may be disposed on the rear surface of the rear cover 120. The arc-shaped member 210 may be rotated based on the drive of the driver 220, and thus may move the two side portions of the display unit 100 in the forward or rearward direction relative to the display device.

[0341] According to one embodiment, the arcuate member 210 may include a first arcuate member 211 and a second arcuate member 213.

[0342] The first arcuate member 211 may have a curved shape that protrudes toward the first long side of the display unit 100. The central portion (or the central length portion) of the first arcuate member 211 may be adjacent to the first long side of the display unit 100, and the two ends (or two side portions) of the first arcuate member 211 may be adjacent to the vertical center line VCL of the display unit 100.

[0343] The second arcuate member 213 may have a curved shape that protrudes toward the second long side of the display unit 100. The central portion (or the central length portion) of the second arcuate member 213 may be adjacent to the second long side of the display unit 100, and the two ends (or the two side portions) of the second arcuate member 213 may be adjacent to the vertical center line VCL of the display unit 100.

[0344] The first arcuate member 211 and the second arcuate member 213 can rotate in two opposite directions based on the drive of the driver 220. According to one embodiment, each of the first arcuate member 211 and the second arcuate member 213 can rotate in two opposite directions at a fixed position (or in an appropriate position) based on the drive of the driver 220. For example, the first arcuate member 211 can rotate in a fixed position in a first rotational direction based on the drive of the driver 220, and simultaneously the second arcuate member 213 can rotate in a fixed position in a second rotational direction based on the drive of the driver 220. Alternatively, the first arcuate member 211 can rotate in a fixed position in the second rotational direction based on the drive of the driver 220, and simultaneously the second arcuate member 213 can rotate in a fixed position in the first rotational direction based on the drive of the driver 220.

[0345] The central portion of the first arc-shaped member 211 and the central portion of the second arc-shaped member 213 can be arranged adjacent to the long side of the display unit 100. Therefore, the central space at the rear of the display unit 100 between the central portion of the first arc-shaped member 211 and the central portion of the second arc-shaped member 213 can have a relatively wide size, thereby increasing the usability of the rear space of the display unit 100 where mechanical or circuit elements are arranged and making it easy to arrange mechanical or circuit elements.

[0346] The guide 230 can be disposed parallel to the second direction Y on the rear surface of the display unit 100, and movably supports each of the first and second central portions of the arcuate member 210. The guide 230 can prevent a portion of the arcuate member 210 from disengaging when the arcuate member 210, which has a curved shape, rotates. Therefore, the arcuate member 210 can be movably disposed in the separation space between the rear surface of the display unit 100 and the central portion of the guide 230, and thus the guide 230 can prevent a portion of the arcuate member 210 from disengaging when it rotates, and by using the guide 230 as a support, the two side portions of the display unit 100 can protrude in the forward direction relative to the display device.

[0347] According to one embodiment, the guide 230 can be disposed in the third rear region RA3 and the fourth rear region RA4 of the display unit 100, and can movably support each of the first arcuate member 211 and the second arcuate member 213. According to one embodiment, the guide 230 may include a first guide member 235 to a fourth guide member 238. Each of the first guide member 235 to the fourth guide member 238 may have a... Figure 14 Each of the first to fourth guide members shown has a different structure, but can have essentially the same function; therefore, their repeated descriptions are omitted. Optionally, Figure 20 Each of the first guide member 235 to the fourth guide member 238 shown can be implemented to have the same characteristics as... Figure 14 The structures of each of the first to fourth guide members shown are substantially the same.

[0348] The first guide member 235 and the third guide member 237 disposed in the third rear region RA3 of the display unit 100 can be disposed parallel to each other, with the first vertical rigid member 161 located therebetween. The second guide member 236 and the fourth guide member 238 disposed in the fourth rear region RA4 of the display unit 100 can be disposed parallel to each other, with the second vertical rigid member 163 located therebetween.

[0349] Each of the first vertical rigid member 161 and the second vertical rigid member 163 may be disposed parallel to the second direction Y on the rear surface of the display unit 100. According to one embodiment, each of the first vertical rigid member 161 and the second vertical rigid member 163 may be implemented having a specific width parallel to the first direction X and a specific length parallel to the second direction Y. For example, each of the first vertical rigid member 161 and the second vertical rigid member 163 may include, but is not limited to, a metallic material. Each of the first vertical rigid member 161 and the second vertical rigid member 163 may be fixed to the rear surface of the display unit 100 by a connecting member such as a screw or bolt, but is not limited to, and each of the first vertical rigid member 161 and the second vertical rigid member 163 may be fixed to the rear surface of the display unit 100 by a connecting member such as double-sided tape. Each of the first vertical rigid member 161 and the second vertical rigid member 163 may minimize or prevent vertical deformation of the display unit 100 when the curvature of the display unit 100 changes.

[0350] The driver 220 may be disposed in the rear central region of the display unit 100. The driver 220 may be disposed between the first arc-shaped member 211 and the second arc-shaped member 213.

[0351] The actuator 220 can simultaneously rotate each of the first arcuate member 211 and the second arcuate member 213. The actuator 220 can simultaneously rotate the first arcuate member 211 and the second arcuate member 213 in two opposite rotational directions from a fixed position. For example, the actuator 220 can rotate the first arcuate member 211 at a fixed position in a first rotational direction by a maximum of 90 degrees, and simultaneously rotate the second arcuate member 213 at a fixed position in a second rotational direction by a maximum of 90 degrees. Conversely, the actuator 220 can rotate the first arcuate member 211 at a fixed position in the second rotational direction by a maximum of 90 degrees, and simultaneously rotate the second arcuate member 213 at a fixed position in the first rotational direction by a maximum of 90 degrees.

[0352] The driver 220 can simultaneously rotate the first arc member 211 and the second arc member 213 at a fixed position by using linear motion based on the rotational motion of a rotary motor.

[0353] According to one embodiment, the driver 220 may include a support plate 221, a retainer 222, a fixed link 223, at least one rotary motor 224, and a gear assembly 225.

[0354] The support plate 221 can be configured to overlap with the rear central portion of the display unit 100. For example, the support plate 221 can be implemented with a specific width parallel to a first direction X and a specific length parallel to a second direction Y, and can be disposed on (or coupled to) the rear surface of the rear cover 120 to overlap with the central portion (or length central portion) of each of the first arcuate member 211 and the second arcuate member 213. The support plate 221 can support each of the retainer 222, at least one rotary motor 224, and gear assembly 225.

[0355] The retainer 222 can be coupled to the support plate 221 and can rotatably support the central portion of the arcuate member 210. According to one embodiment, the retainer 222 may include a first retainer 222a and a second retainer 222b, the first retainer being coupled to the support plate 221 to rotatably support the central portion of the first arcuate member 211, and the second retainer being coupled to the support plate 221 to rotatably support the central portion of the second arcuate member 213. Each of the first retainer 222a and the second retainer 222b may have a... Figures 8 to 10 The first holder 222a and the second holder 222b shown have different structures, but can have essentially the same function; therefore, their repeated description is omitted. Optionally, Figures 21 to 23 Each of the first holder 222a and the second holder 222b shown can be implemented to have the same characteristics as... Figures 8 to 10 The structures of each of the first retainer 222a and the second retainer 222b shown are substantially the same.

[0356] The fixing link 223 can be fixed to the central portion of the arc-shaped member 210. For example, the fixing link 223 can be fixed to the central portion of the arc-shaped member 210 by a fixing member FM such as a screw or bolt.

[0357] According to one embodiment, the fixing link 223 may include a first fixing link FL1 fixed to the central portion of the first arcuate member 211 and a second fixing link FL2 fixed to the central portion of the second arcuate member 213.

[0358] Each of the first fixed link FL1 and the second fixed link FL2 may include a pair of parallel-projecting link fixing parts LFP. For example, the first fixed link FL1 may include a pair of parallel-projecting link fixing parts LFP. The second fixed link FL2 may include a pair of parallel-projecting link fixing parts LFP. The pair of link fixing parts LFP can be fixed to the central portions of the corresponding arcuate members 211 and 213 by means of fixing members FM.

[0359] like Figure 24As shown, the first fixing member FL1 can be disposed on the outer surface of the first long side of the first arcuate member 211 facing the display unit 100, and can be configured to be tilted at a specific angle (θ) relative to the second direction Y. The first fixing member FL1 can be tilted at a specific angle (θ) from the rear surface of the display unit 100. For example, the first fixing member FL1 can be tilted counterclockwise by 45 degrees from a vertical line extending from the central axis of the first arcuate member 211 in the thickness direction Z of the display unit 100. In this case, the tilt angle between the rear surface of the display unit 100 and the extension line connecting the central axis of the first fixing member FL1 to the central axis of the first arcuate member 211 can be approximately 45 degrees.

[0360] like Figure 24 As shown, the second fixing member FL2 can be disposed on the outer surface of the second long side of the second arcuate member 213 facing the display unit 100, and can be configured to be tilted at a specific angle (θ) relative to the second direction Y. The second fixing member FL2 can be tilted at a specific angle (θ) from the rear surface of the display unit 100. For example, the second fixing member FL2 can be tilted 45 degrees clockwise from a vertical line extending from the central axis of the second arcuate member 213 in the thickness direction Z of the display unit 100. In this case, the tilt angle between the rear surface of the display unit 100 and the extension line connecting the central axis of the second fixing member FL2 to the central axis of the second arcuate member 213 can be approximately 45 degrees.

[0361] At least one rotary motor 224 may be disposed in the rear central region of the display unit 100 and may be supported by a support plate 221. The at least one rotary motor 224 may provide rotational force to the gear assembly 225 in response to a user operation performed to change the curvature of the display unit 100.

[0362] The driver 220 according to this embodiment may include a first rotary motor 224a and a second rotary motor 224b (or a pair of rotary motors) for maintaining balance, reducing noise and ensuring a margin of driving force (or rotational force).

[0363] The first rotary motor 224a and the second rotary motor 224b can be arranged parallel to each other, with the gear assembly 225 located between them. The drive shaft (or rotation shaft) of the first rotary motor 224a and the drive shaft (or rotation shaft) of the second rotary motor 224b can be arranged adjacent to or facing the first arcuate member 211. In this case, the first rotary motor 224a and the second rotary motor 224b can rotate in the same direction.

[0364] According to one embodiment, the drive shafts (or rotation shafts) of the first rotary motor 224a and the second rotary motor 224b can be disposed on the rear surface of the display unit 100 in a state where they have been rotated by a specific angle to face the short side of the display unit 100.

[0365] Gear assembly 225 can be mounted on support plate 221 and connected to rotary motor 224. Gear assembly 225 can rotate fixed link 223 based on the rotational movement of rotary motor 224, and can rotate arcuate member 210 at a fixed position based on the rotation of fixed link 223. For example, gear assembly 225 can rotate the first fixed link FL1 and the second fixed link FL2 of fixed link 223 in two opposite directions based on the rotational movement of rotary motor 224, and therefore, each of the first fixed link FL1 and the second fixed link FL2 can be rotated at a fixed position simultaneously. Gear assembly 225 can be referred to as a reduction gear component, but is not limited thereto.

[0366] According to one embodiment, a gear assembly 225 may include a first rack RG1, a second rack RG2, a pinion PG, and a rotational transmission component RTP. In addition to the gear arrangement, the gear assembly 225 including the first rack RG1, the second rack RG2, the pinion PG, and the rotational transmission component RTP can be coupled with… Figure 8 The gear assemblies shown are essentially the same. Therefore, in the following drawings, the same reference numerals denote the same elements, and repeated descriptions of them are omitted.

[0367] According to one embodiment, the curvature variation unit 200 may also include a fixing bracket 240.

[0368] The fixing bracket 240 can be configured to tilt in each of the third rear region RA3 and the fourth rear region RA4 of the display unit 100, and can movably support the ends of each of the first arcuate member 211 and the second arcuate member 213. The fixing bracket 240 movably supports the ends of each of the first arcuate member 211 and the second arcuate member 213, and can guide the movement of the ends of each of the first arcuate member 211 and the second arcuate member. For this purpose, the fixing bracket 240 may include a side groove having a certain depth from its inner surface, such that the ends of each of the first arcuate member 211 and the second arcuate member 213 are movably inserted into the side groove (or side recess).

[0369] The fixing bracket 240 may be disposed on the rear surface of the display unit 100 at a specific angle relative to the second direction Y, rather than parallel to the second direction Y. According to one embodiment, the fixing bracket 240 may be configured to be inclined to correspond to the movement trajectory of the ends of each of the first arcuate member 211 and the second arcuate member 213 during rotation. For example, when the display unit 100 has a planar shape, the end of each of the first arcuate member 211 and the second arcuate member 213 may be configured to be adjacent to the other end of the fixing bracket 240. Furthermore, when the display unit 100 changes from a planar shape to a curved shape, the end of each of the first arcuate member 211 and the second arcuate member 213 may move from the other end of the fixing bracket 240 to one end of the fixing bracket 240 based on the rotation of each of the first arcuate member 211 and the second arcuate member 213.

[0370] According to one embodiment, the fixing bracket 240 may include a first fixing bracket 241 to a fourth fixing bracket 244.

[0371] In addition to each of the first to fourth fixing brackets 241 being disposed on the rear surface of the display unit 100 at a specific angle relative to the second direction Y and not parallel to the second direction Y, each of the first to fourth fixing brackets 244 according to this embodiment may have the same... Figure 6 Each of the first fixing brackets 241 to the fourth fixing brackets 244 shown has a similar structure. Therefore, in the following drawings, the same reference numerals denote the same elements, and repeated descriptions of them are omitted.

[0372] One end of each of the first to fourth fixing brackets 241 may be configured to be adjacent to a corner of the display unit 100 or a corner of the rear cover 120. The end of each of the first to fourth fixing brackets 244 may be configured to slope from one end toward the rear central region of the display unit 100.

[0373] Relative to the second direction Y, each of the first to fourth fixed supports 241 can be configured to be inclined to correspond to the movement trajectory of the ends of each of the first and second arcuate members 211 and 213 when the first arcuate member 211 and the second arcuate member 213 rotate. In this case, the side groove (or side recess) provided in the inner surface of each of the fixed supports 241 to 244, into which the ends of each of the first and second arcuate members 211 and 213 are inserted, can have a specific depth.

[0374] For example, such as Figure 8As shown, when each of the first to fourth fixed supports 241 is arranged parallel to the second direction Y, each of the first to fourth fixed supports 244 should include a side groove with a generally deep depth based on the movement trajectory of each of the first arcuate member 211 and the second arcuate member 213. Therefore, each of the first to fourth fixed supports 244 should have a relatively wide width. On the other hand, as Figure 20 As shown, when each of the first fixed brackets 241 to the fourth fixed brackets 244 is set to be inclined rather than parallel to the second direction Y, based on the movement trajectory of each of the first arcuate member 211 and the second arcuate member 213, each of the first fixed brackets 241 to the fourth fixed brackets 244 may include a side groove with a generally shallow depth, and therefore, each of the first fixed brackets 241 to the fourth fixed brackets 244 may have a relatively narrow width.

[0375] like Figure 22 and Figure 23 As shown, the driver 220 of the curvature variation unit 200 according to an embodiment of the present disclosure may further include a guide rail 226.

[0376] The guide rail 226 can be disposed between the support plate 221 and the racks RG1 and RG2 and can guide the linear movement of each of the racks RG1 and RG2.

[0377] According to one embodiment, the guide rail 226 may include a first guide rail 226a disposed between the support plate 221 and the first rack RG1, and a second guide rail 226b disposed between the support plate 221 and the second rack RG2. Each of the first guide rail 226a and the second guide rail 226b is as described above. Figure 22 and Figure 23 Therefore, the same reference numerals denote the same elements, and their repeated descriptions are omitted.

[0378] The driver 220 of the curvature variation unit 200 according to the embodiments of the present disclosure may further include a limit switch unit 227.

[0379] Limit switch unit 227 can be disposed on support plate 221 adjacent to rack RG, and can limit the maximum distance of linear movement of each rack RG. For example, limit switch unit 227 can be implemented to limit the maximum distance of linear movement of each rack RG based on physical contact with rack RG.

[0380] According to one embodiment, the limit switch unit 227 may include a first limit switch unit 227a and a second limit switch unit 227b.

[0381] The first limit switch unit 227a can limit the maximum linear movement distance of the first rack RG1 based on the first linear direction Y+. The first limit switch unit 227a can limit the maximum rotation angle of the arc member 210 or limit the maximum curvature of the display unit 100.

[0382] According to one embodiment, the first limit switch unit 227a may include a first limit switch LS1 disposed adjacent to the first arcuate member 211 on the support plate 221 and a first stop SP1 protruding from the outer surface of the first rack RG1. When the first limit switch LS1 physically contacts the first stop SP1 disposed in the first rack RG1 performing linear motion along the first linear direction Y+, the first limit switch LS1 can generate a first limit signal and can provide the first limit signal to the curvature change control circuit. The curvature change control circuit can stop the rotation of the rotary motor 224 in response to the first limit signal provided from the first limit switch LS1.

[0383] The second limit switch unit 227b can limit the maximum linear movement distance of the second rack RG2 based on the second linear direction Y-.

[0384] According to one embodiment, the second limit switch unit 227b may include a second limit switch LS2 disposed adjacent to the pinion PG on the support plate 221 and a second stop SP2 protruding from the outer surface of the second rack RG2. When the second limit switch LS2 physically contacts the second stop SP2 disposed in the second rack RG2 which performs linear motion along the first linear direction Y+, the second limit switch LS2 can generate a second limit signal and provide the second limit signal to the curvature change control circuit. The curvature change control circuit can stop the rotation of the rotary motor 224 in response to the second limit signal provided from the second limit switch LS2.

[0385] According to another embodiment of this disclosure, the curvature variation unit 200 may further include a gearbox 278.

[0386] The gearbox 278 can be connected to the support plate 221 and can support the driver 270.

[0387] The gearbox 278 can be supported by or mounted on the support column. For this purpose, the gearbox 278 can include multiple mounting couplings 278a. The multiple mounting couplings 278a can be located at each of the upper and lower sides of the gearbox 278, and can include a horizontally symmetrical structure relative to the slider 274.

[0388] Additionally, gearbox 278 can be connected to, for example... Figure 19The position control unit 700 is shown. In this case, with the display unit 100 mounted on the bracket 300 via the position control unit 700, the height and angle of the display device according to this embodiment can be adjusted based on user operations performed via the position control unit 700.

[0389] As mentioned above, such as Figure 12A and Figure 12B As shown, a display device including a curvature changing unit 200 according to another embodiment of the present disclosure can change from a planar shape to a curved shape or from a curved shape to a planar shape based on the driving of the curvature changing unit 200; therefore, its repeated description is omitted.

[0390] The display device according to this disclosure will now be described.

[0391] A display device according to an embodiment of the present disclosure includes: a display unit, the display unit including a display panel configured to display an image; a curvature changing unit disposed on a rear surface of the display unit and changing the curvature of the display unit; and a vibration unit disposed on the rear surface of the display unit and configured to vibrate the display panel.

[0392] According to some embodiments of the present disclosure, the display unit includes a rear cover disposed on the rear surface of the display panel and supporting the vibration unit, and the rear cover includes a slit overlapping the vibration unit.

[0393] According to some embodiments of this disclosure, the vibration unit includes a pair of sound generating units coupled to the back cover to cause the display panel to vibrate, and a slit is realized in the back cover and overlaps with the area between the pair of sound generating units.

[0394] According to some embodiments of this disclosure, each of the pair of sound generating units includes a spool and a coil wound around the spool, and the spool passes through a rear cover and is connected to the rear surface of the display panel.

[0395] According to some embodiments of the present disclosure, the vibration unit includes: a first vibration unit disposed in a first region of the display unit; and a second vibration unit disposed in a second region of the display unit.

[0396] According to some embodiments of the present disclosure, the display unit includes: a rear cover disposed on the rear surface of the display panel to support each of the first vibration unit and the second vibration unit, each of the first vibration unit and the second vibration unit including a first sound generating unit and a second sound generating unit disposed side by side, and the rear cover including a slit disposed between the first sound generating unit and the second sound generating unit.

[0397] According to some embodiments of the present disclosure, the curvature variation unit includes: an arcuate member disposed on the rear surface of the display unit; a driver disposed on the rear central portion of the display unit to rotate the central portion of the arcuate member; a first guide member disposed on the rear surface of the display unit to support the area between the central portion of the arcuate member and one end of the arcuate member; and a second guide member disposed on the rear surface of the display unit to support the area between the central portion of the arcuate member and the other end of the arcuate member.

[0398] According to some embodiments of this disclosure, the curvature variation unit includes: a first arcuate member and a second arcuate member, the first arcuate member and the second arcuate member being respectively disposed in a first rear region and a second rear region of the display unit parallel to a first direction; a guide member, the guide member being disposed in each of a third rear region and a fourth rear region of the display unit parallel to a second direction intersecting the first direction, to support each of the first arcuate member and the second arcuate member; a fixed bracket, the fixed bracket being disposed in each of the third rear region and the fourth rear region of the display unit to movably support the ends of each of the first arcuate member and the second arcuate member; and a driver, the driver being disposed in the rear central region of the display unit to cause the central portions of each of the first arcuate member and the second arcuate member to rotate simultaneously.

[0399] According to some embodiments of this disclosure, each of the first arcuate member and the second arcuate member has a curved shape and rotates in two opposite directions based on the drive of the actuator.

[0400] According to some embodiments of the present disclosure, each of the first arcuate member and the second arcuate member has a curved shape, and the central portion of each of the first arcuate member and the second arcuate member is adjacent to the rear central portion of the display unit, and the end of each of the first arcuate member and the second arcuate member is adjacent to the corner of the display unit.

[0401] According to some embodiments of this disclosure, the driver includes: a first retainer rotatably supporting a central portion of a first arcuate member; a second retainer rotatably supporting a central portion of a second arcuate member; a first fixed link fixed to the central portion of the first arcuate member; a second fixed link fixed to the central portion of the second arcuate member; at least one rotary motor; a first rack rotating the first fixed link; a second rack rotating the second fixed link; a pinion connected between the first and second racks; and a rotation transmission member that rotates the pinion based on the rotation of the at least one rotary motor.

[0402] According to some embodiments of this disclosure, the curvature variation unit includes: a first arcuate member and a second arcuate member, the first arcuate member and the second arcuate member being respectively disposed in a first rear region and a second rear region of the display unit parallel to a first direction; a guide member, the guide member being disposed in each of a third rear region and a fourth rear region of the display unit parallel to a second direction intersecting the first direction, to support each of the first arcuate member and the second arcuate member; a fixing bracket, the fixing bracket being disposed in each of a third rear edge portion and a fourth rear edge portion of the display unit; a connecting member, the connecting member being rotatably disposed in the fixing bracket and inserted into the end portion of each of the first arcuate member and the second arcuate member; and a driver, the driver being disposed in the rear central portion of the display unit to cause the central portions of each of the first arcuate member and the second arcuate member to rotate simultaneously.

[0403] According to some embodiments of this disclosure, each of the first arcuate member and the second arcuate member has a curved shape and rotates in the same direction while moving in the same direction based on the drive of the actuator.

[0404] According to some embodiments of this disclosure, the driver includes: a guide plate disposed on the rear surface of the display unit, the guide plate including a guide rail; a first retainer link disposed on one side of the guide plate to rotatably support a central portion of a first arcuate member; a second retainer link disposed on the other side of the guide plate to rotatably support a central portion of a second arcuate member; a slider including one or a pair of racks connected between the first and second retainer links and slidably disposed on the guide rail; one or a pair of pinions that slide the one or a pair of racks; one or a pair of rotary motors; and a rotation transmission member that rotates the one or a pair of pinions based on the rotation of the one or a pair of rotary motors.

[0405] According to some embodiments of this disclosure, the curvature variation unit includes: a first arcuate member and a second arcuate member, the first arcuate member and the second arcuate member being respectively disposed in a first rear region and a second rear region of the display unit parallel to a first direction; a guide member, the guide member being disposed in each of a third rear region and a fourth rear region of the display unit parallel to a second direction intersecting the first direction, to support each of the first arcuate member and the second arcuate member; a fixed bracket, the fixed bracket being disposed in each of the third rear region and the fourth rear region of the display unit to movably support the ends of each of the first arcuate member and the second arcuate member; and a driver, the driver being disposed in the rear central region of the display unit to cause the central portions of each of the first arcuate member and the second arcuate member to rotate simultaneously, and the fixed bracket being configured to be inclined relative to the second direction.

[0406] According to some embodiments of this disclosure, each of the first arcuate member and the second arcuate member has a curved shape and rotates in two opposite directions based on the drive of the actuator.

[0407] According to some embodiments of this disclosure, the actuator includes: a first retainer rotatably supporting a central portion of a first arcuate member; a second retainer rotatably supporting a central portion of a second arcuate member; a first fixed link fixed to the central portion of the first arcuate member; a second fixed link fixed to the central portion of the second arcuate member; at least one rotary motor; a first rack rotating the first fixed link; a second rack rotating the second fixed link; a pinion connected between the first and second racks; and a rotation transmission member that rotates the pinion based on the rotation of the at least one rotary motor.

[0408] A display device according to an embodiment of the present disclosure includes: a display unit, the display unit including a display panel configured to display an image; and a curvature changing unit disposed on a rear surface of the display unit and changing the curvature of the display unit, wherein the curvature changing unit includes: a first arcuate member and a second arcuate member, the first arcuate member and the second arcuate member being respectively disposed in a first rear region and a second rear region of the display unit parallel to a first direction, each of the first arcuate member and the second arcuate member having a curved shape; and a driver disposed in the rear central region of the display unit to cause each of the first arcuate member and the second arcuate member to... The central portion of the display unit rotates simultaneously; a guide, which is disposed on the rear surface of the display unit in a second direction parallel to the first direction, so as to movably support the middle portion between the central portion and the two ends of each of the first and second arcuate members; and a fixing bracket, which is disposed in each of the third and fourth rear edge portions of the display unit in a second direction parallel to the first direction, and the fixing bracket transmits the pressure applied to the ends of each of the first and second arcuate members that rotate based on the drive of the driver to each of the third and fourth rear edge portions of the display unit.

[0409] According to some embodiments of this disclosure, the fixed bracket movably supports the ends of each of the first arcuate member and the second arcuate member.

[0410] According to some embodiments of this disclosure, the fixing bracket is configured to be tilted relative to a second direction.

[0411] According to some embodiments of the present disclosure, the curvature changing unit further includes a connecting member rotatably disposed in a fixed bracket, and the connecting member includes: a pin portion inserted into the end of each of the first arcuate member and the second arcuate member; and a ring portion connected to the end of the pin portion and rotatably disposed in the fixed bracket.

[0412] According to some embodiments of this disclosure, the display device further includes a vibration unit disposed on the rear surface of the display unit to cause the display panel to vibrate, thereby outputting sound based on the vibration of the display panel.

[0413] According to some embodiments of this disclosure, the display unit includes a rear cover disposed on the rear surface of the display panel to support a vibration unit, the vibration unit including a pair of sound generating units coupled to the rear cover to vibrate the display panel, and the rear cover including a slit overlapping the area between the pair of sound generating units.

[0414] The display device also includes a rear shielding unit disposed on the rear surface of the display panel to cover the curvature variation unit.

[0415] According to some embodiments of the present disclosure, the rear masking unit includes: a masking edge frame connected to a rear edge portion of the display unit, the masking edge frame including a first opening portion; a masking rear frame connected to the masking edge frame, the masking rear frame including a second opening portion overlapping the first opening portion; and a plurality of masking members configured to be separate from the second opening portion of the masking rear frame.

[0416] The display device according to this disclosure can maintain the display panel as flat based on the user's (or viewer's) choice (or preference), or can change (or alter) the curvature of the display panel.

[0417] Furthermore, the display device according to this disclosure can change the curvature of the display panel and can output sound in the forward direction relative to the display panel, thereby maximizing the immersion of the user (or viewer) viewing the image.

[0418] The features, structures, and effects described above in this disclosure are included in at least one embodiment of this disclosure, but are not limited to only one embodiment. Furthermore, the features, structures, and effects described in at least one embodiment of this disclosure can be achieved by combinations or modifications of other embodiments by those skilled in the art. Therefore, anything associated with combinations and modifications should be interpreted as being within the scope of this disclosure.

[0419] It will be apparent to those skilled in the art that various modifications and variations can be made to the invention without departing from its spirit or scope. Therefore, this disclosure is intended to cover modifications and variations that fall within the scope of the appended claims and their equivalents.

[0420] Cross-reference to related applications

[0421] This application claims the benefit of Korean Patent Application No. 10-2019-0142766, filed on November 8, 2019, which is incorporated herein by reference as if fully set forth herein.

Claims

1. A display device, the display device comprising: The display unit includes a display panel configured to display an image; A curvature variation unit is disposed on the rear surface of the display unit and configured to change the curvature of the display unit; as well as A vibration unit is disposed on the rear surface of the display unit and configured to vibrate the display panel. The display unit includes a back cover, which is disposed on the rear surface of the display panel and supports the vibration unit. The rear cover includes a slit that overlaps with the vibration unit. The slit is formed to pass perpendicularly through the back cover in the thickness direction of the display unit, and to allow the air gap between the display panel and the back cover to communicate with the rear exterior of the back cover. The vibration unit includes a pair of sound generating units connected to the rear cover. One end of the slit is positioned between the pair of sound generating units, and The slit is longer than the length of each of the sound generating units.

2. The display device according to claim 1, wherein, The sound generating unit is configured to vibrate the display panel, wherein the slit is implemented in the back cover and overlaps with the area between the pair of sound generating units.

3. The display device according to claim 2, wherein, Each of the pair of sound generating units includes a spool and a coil wound around the spool, wherein the spool passes through the back cover and is connected to the rear surface of the display panel.

4. The display device according to any one of claims 1 to 3, wherein, The vibration unit includes: A first vibration unit is disposed in a first region of the display unit; and The second vibration unit is disposed in the second area of ​​the display unit.

5. The display device according to claim 4, wherein, The display unit includes a rear cover disposed on the rear surface of the display panel to support each of the first vibration unit and the second vibration unit. Each of the first vibration unit and the second vibration unit includes a first sound generating unit and a second sound generating unit arranged side by side, and The slit is disposed between the first sound generating unit and the second sound generating unit.

6. The display device according to any one of claims 1 to 5, wherein, The curvature variation unit includes: An arc-shaped component is disposed on the rear surface of the display unit; A driver is disposed at the rear central portion of the display unit to rotate the central portion of the arc-shaped member; A first guide member is disposed on the rear surface of the display unit to support the area between one end and the central portion of the arcuate member; and A second guide member is disposed on the rear surface of the display unit to support the area between the other end of the arcuate member and the central portion.

7. The display device according to any one of claims 1 to 6, wherein, The curvature variation unit includes: The first arc-shaped component and the second arc-shaped component are respectively disposed in the first rear region and the second rear region of the display unit parallel to the first direction; A guide member is disposed in each of the third and fourth rear regions of the display unit, which are parallel to a second direction intersecting the first direction, to support each of the first arcuate member and the second arcuate member. A fixed bracket, disposed in each of the third and fourth rear regions of the display unit, is provided to movably support the ends of each of the first and second arcuate members; and A driver is disposed in the rear central region of the display unit to cause the central portions of each of the first arcuate member and the second arcuate member to rotate simultaneously.

8. The display device according to any one of claims 1 to 5, wherein, The curvature variation unit includes: The first arc-shaped component and the second arc-shaped component are respectively disposed in the first rear region and the second rear region of the display unit parallel to the first direction; A guide member is disposed in each of the third and fourth rear regions of the display unit, which are parallel to a second direction intersecting the first direction, to support each of the first arcuate member and the second arcuate member. A fixing bracket is disposed in each of the third and fourth rear edge portions of the display unit; A connecting member, rotatably disposed in the fixed bracket and inserted into the end of each of the first arcuate member and the second arcuate member; and A driver is disposed in the rear central portion of the display unit to cause the central portions of each of the first arcuate member and the second arcuate member to rotate simultaneously.

9. The display device according to claim 8, wherein, Each of the first arcuate member and the second arcuate member has a curved shape and rotates in the same direction while moving in the same direction based on the drive of the driver.

10. The display device according to claim 8 or 9, wherein, The driver includes: A guide plate, the guide plate being disposed on the rear surface of the display unit, the guide plate including a guide rail; A first retainer link is disposed on one side of the guide plate to rotatably support the central portion of the first arcuate member. A second retainer link is disposed on the other side of the guide plate to rotatably support the central portion of the second arcuate member; The slider includes a rack or a pair of racks connected between the first retainer link and the second retainer link and slidably disposed on the guide rail; One or a pair of pinions, wherein the one or a pair of pinions causes the one or a pair of racks to slide; One or a pair of rotary motors; and A rotary transmission component that causes one or a pair of pinions to rotate based on the rotation of the one or a pair of rotary motors.

11. The display device according to any one of claims 1 to 5, wherein, The curvature variation unit includes: The first arc-shaped component and the second arc-shaped component are respectively disposed in the first rear region and the second rear region of the display unit parallel to the first direction; A guide member is disposed in each of the third and fourth rear regions of the display unit, which are parallel to a second direction intersecting the first direction, to support each of the first arcuate member and the second arcuate member. A fixed bracket is disposed in each of the third and fourth rear regions of the display unit to movably support the ends of each of the first and second arcuate members; A driver is disposed in the rear central portion of the display unit to cause the central portions of each of the first arcuate member and the second arcuate member to rotate simultaneously, and the fixing bracket is configured to be tilted relative to the second direction.

12. The display device according to claim 7 or 11, wherein, Each of the first arcuate member and the second arcuate member has a curved shape and rotates in two opposite directions based on the drive of the driver, and / or, the central portion of each of the first arcuate member and the second arcuate member is adjacent to the rear central portion of the display unit, and the end of each of the first arcuate member and the second arcuate member is adjacent to the corner of the display unit.

13. The display device according to claim 7, 11 or 12, wherein, The driver includes: A first retainer, the first retainer being rotatably capable of supporting the central portion of the first arcuate member; A second retainer, which is rotatably capable of supporting the central portion of the second arcuate member; A first fixed link is fixed to the central portion of the first arc-shaped member; The second fixed link is fixed to the central part of the second arc-shaped member; At least one rotating motor; A first rack, which causes the first fixed link to rotate; The second rack causes the second fixed link to rotate; A pinion, the pinion being connected between the first rack and the second rack; and A rotary transmission component that rotates the pinion based on the rotation of the at least one rotary motor.

14. The display device according to any one of claims 7 to 13, wherein, The fixed bracket is movably able to support the ends of each of the first arcuate member and the second arcuate member, and / or the fixed bracket is configured to be inclined relative to the second direction.

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