Display system

Abstract

A display system according to one embodiment includes a curved display device extending along one direction; and a bending device located on the back surface of the curved display device and bending the curved display device in a thickness direction intersecting the one direction, wherein the bending device includes a shaft extending along the one direction, a motor for rotating the shaft, and a cam connected to the shaft, wherein the cam includes a first cam portion, a second cam portion, and a connecting portion connecting the first cam portion and the second cam portion.

Description

Technology Field

[0001] This specification relates to a display system. Background Technology

[0002] As the information society develops, there is an increasing demand for display devices that display images, and various types of display devices, such as Liquid Crystal Displays and Organic Light Emitting Diode Displays, are being utilized.

[0003] The display device includes a plurality of pixels and is equipped with a plurality of switching elements to drive and control the pixels. The problem to be solved

[0004] The embodiments of the present specification have the technical objective of providing a display system that is bent with various curvatures.

[0005] The embodiments of the present specification have the technical objective of providing a slimmed-down display system.

[0006] The embodiments of the present specification have the technical objective of providing a process-optimized display system.

[0007] The problems of this specification are not limited to those mentioned above, and other technical problems may be inferred from the following embodiments. means of solving the problem

[0008] A display system according to one embodiment for solving the above problem comprises: a curved display device extending along one direction; and a bending device located on the back surface of the curved display device and bending the curved display device in a thickness direction intersecting the one direction, wherein the bending device comprises a shaft extending along the one direction, a motor for rotating the shaft, and a cam connected to the shaft, wherein the cam comprises a first cam portion, a second cam portion, and a connecting portion connecting the first cam portion and the second cam portion.

[0009] Specific details of other embodiments are included in the detailed description and drawings. Effects of the invention

[0010] A display system according to the embodiments of the present specification can vary the bending curvature of a curved display through a size-adjustable cam.

[0011] A display system according to the embodiments of the present specification can provide a slimmed-down display system by connecting a plurality of shafts and arranging them along the back surface of a display device.

[0012] The display system according to the embodiments of the present specification can reproduce various curvatures through a size-adjustable cam, thereby optimizing the process in the production of curved displays.

[0013] However, the effects obtainable in this specification are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which this specification belongs from the description below. Brief explanation of the drawing

[0014] FIG. 1 is a perspective view of a display system according to one embodiment. Figure 2 is a top view of the display system according to Figure 1. Figure 3 is a side view of the display system according to Figure 1. Figure 4 is a top view of the display system according to Figure 1. Figure 5 is a side view of the display system according to Figure 1. Figure 6 is a top view of the display system according to Figure 1. Figure 7 is a side view of the display system according to Figure 1. FIG. 8 is a side view of a display system according to another embodiment. FIG. 9 is a top view of a display system according to another embodiment. Specific details for implementing the invention

[0015] Hereinafter, embodiments will be described with reference to the drawings.

[0016] Identical reference numerals denote identical components. Additionally, in the drawings, the thickness, proportion, and dimensions of components may be exaggerated to effectively illustrate the technical content. The scale of the components depicted in the drawings differs from the actual scale for the convenience of explanation and is therefore not limited to the scale depicted in the drawings.

[0017] In this specification, where it is stated that any component (or region, layer, part, etc.) is "on," "connected," or "joined" to another component, it means that it may be directly connected / joined to the other component or that a third component may be placed between them.

[0018] "And / or" includes all one or more combinations that the associated configurations can define.

[0019] Terms such as "first," "second," etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present embodiments, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0020] Terms such as "below," "lower," "above," and "upper" are used to describe the relationships between components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings. For example, unless "immediately" or "directly" is used, one or more other parts may be located between two parts. Spatially relative terms such as "below" or "beneath," "lower," "above," and "upper" may be used to easily describe the correlation between one element or component and another element or component as depicted in the drawings. Spatially relative terms should be understood as terms that include different directions of the element during use or operation in addition to the directions depicted in the drawings. For example, if an element depicted in the drawings is flipped, an element described as "below" or "beneath" another element may be placed "above" of that other element. Therefore, the exemplary term "below" can include both the downward and upward directions.

[0021] Terms such as "include" or "have" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0022] The features of each of the various embodiments of this specification may be combined or combined with one another, either partially or wholly, and may technically enable various interlocking and operation. Each embodiment may be implemented independently of one another or may be implemented together in an associated relationship.

[0023] The display device of this specification is described below through the attached drawings and embodiments.

[0024] FIG. 1 is a perspective view of a display system according to one embodiment.

[0025] Referring to FIG. 1, the display system (10) may include a cam (100), a shaft (200), a motor (300), a display device (400), and a control board (500).

[0026] In the embodiments, the first direction (DR1) and the second direction (DR2) are different directions and intersect each other, for example, representing directions that intersect perpendicularly in a plan view. The third direction (DR3) is a direction that intersects the plane on which the first direction (DR1) and the second direction (DR2) are placed, for example, representing a direction that intersects perpendicularly to both the first direction (DR1) and the second direction (DR2). In FIG. 1, the first direction (DR1) may be the same as the extension direction of the long sides of the display device (100), and the second direction (DR2) may be the same as the extension direction of the short sides of the display device (100). However, the directions mentioned in the embodiments should be understood as referring to relative directions, and the embodiments are not limited to the mentioned directions.

[0027] The shaft (200) may extend along the first direction (DR1) and may be positioned on the back of the display device (400) (e.g., on one side of the third direction (DR3)). The shaft (200) may receive power from the motor (300) and perform the function of rotating the cam (100) to be described later.

[0028] A plurality of cams (100) may be provided, and each cam (100) may be spaced apart along a first direction (DR1) and positioned on the back surface of a display device (400) (e.g., one side of a third direction (DR3)). For example, a plurality of cams (100) may each be positioned on the back surface of the display device (400) on one side of the first direction (DR1) and the other side. However, the embodiments of this specification are not limited thereto, and a plurality of cams (100) may be positioned close to the center of the first direction (DR1) of the display device (400).

[0029] The cam (100) may include a first cam portion (110), a second cam portion (120), and a connecting portion (130), and the connecting portion (130) may connect the first cam portion (110) and the second cam portion (120). The first cam portion (110) and the second cam portion (120) may each have a semicircular shape, and thus, when the first cam portion (110) and the second cam portion (120) are connected, a single circular shape can be formed.

[0030] The connecting portion (130) may be positioned across the boundary line of the first cam portion (110) and the second cam portion (120) on the other side or one side of the first direction (DR1) of the circular plate formed by the first cam portion (110) and the second cam portion (120). The connecting portion (130) may be connected to the first cam portion (110) and the second cam portion (120), respectively, and may be extended along the third direction (DR3). In the third mode to be described later, the connecting portion (130) may be further extended in the third direction (DR3). Accordingly, the connecting portion (130) may include a configuration capable of extending in the third direction (DR3), and may include, for example, a linear actuator.

[0031] The cam (100) can be connected to the shaft (200). Therefore, when the shaft (200) rotates, the cam (100) can also rotate together accordingly. The first cam portion (110) may be a part connected to the shaft (200), and thus, when the shaft (200) rotates, the first cam portion (110), the connecting portion (130), and the second cam portion (120) connected to the first cam portion (110) can rotate together as a single unit.

[0032] The motor (300) can be positioned on one side of the first direction (DR1) of the shaft (200) and can be connected to the shaft (200). The motor (300) can receive a motor driving signal from the control board (500) and can control the rotation of the shaft (200) according to the received signal.

[0033] The display device (400) can output an image, and the display device (400) may include at least one of a liquid crystal display (LCD), a digital mirror device (DMD), a liquid crystal on silicon (LCoS), an organic light emitting diode (OLED), or a micro light emitting diode (micro LED).

[0034] The planar shape of the display device (400) may have a rectangular shape including a long side extending along the first direction (DR1) and a short side extending along the second direction (DR2). However, it is not limited thereto, and the planar shape of the display device (400) may be a square, a circle, an ellipse, or other polygon. For example, the planar shape of the display device (400) may be a rectangular shape with rounded corners.

[0035] The display device (400) may be a curved display. In the embodiments of this specification, the display device (400) may be curved in a third direction (DR3).

[0036] Although the control board (500) is depicted as being configured separately from the display device (400) in the drawing, it may be placed inside the display device (400). For example, the display device (400) may include a printed circuit board (PCB), and the control board (500) may be included in the printed circuit board (PCB). The control board (500) may include a memory section, a motor power supply section, and a connection length adjustment section.

[0037] The memory unit can store information regarding the curvature of the display device (400) according to the length adjustment of the cam (100) to be described later, the motor power supply unit can transmit a motor driving signal to the motor (300), the connection unit length adjustment unit can receive curvature information desired by the user, and based on the information stored in the memory unit, the length of the connection unit (130) can be adjusted to the curvature information.

[0038] Figure 2 is a top view of the display system according to Figure 1.

[0039] Referring to FIG. 2, FIG. 2 shows a display system in a first mode.

[0040] The shaft (200) and the display device (400) may extend along a first direction (DR1), and the extension length of the shaft (200) may be longer than the extension length of the display device (400). Accordingly, the shaft (200) may include an area that overlaps with the display device (400) and an area that does not overlap. In the area that does not overlap with the display device (400) extending along the first direction (DR1), the shaft (200) may be connected to a motor (300).

[0041] The first cam portion (110) and the second cam portion (120) may be connected and arranged along the third direction (DR3), and the second cam portion (120) may be arranged on the back side of the first cam portion (110) (e.g., one side of the third direction (DR3)). That is, the first cam portion (110) may be arranged between the second cam portion (120) and the display device (400). The connecting portion (130) may be arranged across the boundary between the first cam portion (110) and the second cam portion (120) on one side or the other side of the first direction (DR1) of the first cam portion (110) and the second cam portion (120).

[0042] Since the cam (100) can perform the function of bending the display device (400) by coming into direct contact with the back surface of the display device (400) during the rotation process described later, it must be placed on the back surface of the display device (400). Accordingly, the cam (100) can be placed in an area where the shaft (200) and the display device (400) overlap, and the first cam part (110) can be connected to the shaft (200) in the overlap area. The shaft (200) can be placed in a form that penetrates the first cam part (110), and the shaft (200) and the first cam part (110) can be connected to each other and fixed at the penetrating portion.

[0043] The cam (100) may be provided in multiple numbers, and the multiple cams may include a first cam and a second cam. For example, the first cam may be positioned overlapping with an end located on the other side of the first direction (DR1) of the display device (400), and the second cam may be positioned overlapping with an end located on one side of the first direction (DR1) of the display device (400).

[0044] In the first mode, the display device (400) may not be curved and may be in the form of a straight line extending along the first direction (DR1). That is, in the first mode, the display device (400) may have a flat shape with respect to the plane formed by the second direction (DR2) and the first direction (DR1).

[0045] Figure 3 is a side view of the display system according to Figure 1.

[0046] Referring to FIG. 3, FIG. 3 shows the arrangement of the cam (100), shaft (200), and display device (400) in a first mode.

[0047] Although the connecting portion (130) is shown as being provided as a single unit in the drawing, it may be provided as a plurality of units, and the plurality of connecting portions (130) may be spaced apart along the second direction (DR2), and the plurality of connecting portions (130) may each be placed across the boundary line where the first cam portion (110) and the second cam portion (120) meet.

[0048] When viewed on the plane formed by the second direction (DR2) and the third direction (DR3), the shape of the shaft (200) penetrating the first cam portion (110) may be circular. The cam (100) and the shaft (200), which are connected and fixed to each other at the penetrating portion, may be spaced apart from the display device (400) in the third direction (DR3).

[0049] Although not illustrated, a separate support may be used to position the cam (100) and shaft (200) on the back of the display device (400). For example, the support may be physically connected to the cam (100), shaft (200), and motor (300), respectively, to prevent movement of the cam (100), shaft (200), and motor (300) on the back of the display device (400).

[0050] Figure 4 is a top view of the display system according to Figure 1.

[0051] Referring to FIG. 4, FIG. 4 shows a display system in a second mode.

[0052] The motor (300) can rotate the shaft (200), and thus the cam (100) can rotate on the plane formed by the second direction (DR2) and the third direction (DR3) with the shaft (200) as the axis of rotation. FIG. 4 shows the case where the cam of FIG. 2 (see 100 of FIG. 2) is rotated 180 degrees on the plane formed by the second direction (DR2) and the third direction (DR3), and at this time, the second cam part (120) can be placed between the first cam part (110) and the display device (400).

[0053] Although the back surface of the second cam part (120) and the display device (400) are shown as being separated in the drawing, as the cam (100) rotates, the back surface of the second cam part (120) and the display device (400) can come into contact, and furthermore, the second cam part (120) can bend in a third direction (DR3) by pushing the display device (400).

[0054] As described above, since the plurality of cams (100) can be arranged to overlap with one end and the other end of the first direction (DR1) of the display device (400), the second cam portions (120) included in each cam (100) can bend the one end and the other end of the first direction (DR1) of the display device (400) toward the other side of the third direction (DR3). In the second mode, the display device (400) may have a first radius of curvature (R1).

[0055] Other explanations are described in detail in Figure 2, so further detailed explanations will be omitted.

[0056] Figure 5 is a side view of the display system according to Figure 1.

[0057] Referring to FIG. 5, as the cam (100) rotates on the plane formed by the second direction (DR2) and the third direction (DR3) with the shaft (200) extended in the first direction (DR1) as an axis, a second cam part (120) can be positioned between the first cam part (110) and the display device (400).

[0058] The back surface (one side of the third direction (DR3)) of the display device (400) can be bent by being pushed toward the other side of the third direction (DR3) by the semicircular second cam portion (120), and thus, when viewed on the plane formed by the second direction (DR2) and the third direction (DR3), a part of the cam (100) and a part of the back surface of the display device (400) can overlap.

[0059] Other explanations are detailed in Figure 3, so further detailed explanations will be omitted.

[0060] Figure 6 is a top view of the display system according to Figure 1.

[0061] Referring to FIG. 6, FIG. 6 shows a display system in a third mode.

[0062] In the third mode, the cam (100) can rotate about the shaft (200) as an axis, and thus, a second cam part (120) and a connecting part (130) can be positioned between the first cam part (110) and the display device (400).

[0063] As described above, the connecting portion (130) may include a linear actuator and thus may extend along the third direction (DR3). When the connecting portion (130) is extended, the second cam portion (120) may push the display device (400) further toward the other side of the third direction (DR3). As described above, since the plurality of cams (100) may each be arranged to overlap with one end and the other end of the first direction (DR1) of the display device (400), the second cam portions (120) included in each cam (100) may further bend the one end and the other end of the first direction (DR1) of the display device (400) toward the other side of the third direction (DR3). In the third mode, the display device (400) may have a second radius of curvature (R2).

[0064] The display device (400) can be bent more in the second mode before the connection part (130) is extended, and thus, the second radius of curvature (R2) can be smaller than the first radius of curvature (see R1 in FIG. 4).

[0065] Other explanations are described in detail in FIGS. 2 and FIGS. 4, so further detailed explanations will be omitted below.

[0066] Figure 7 is a side view of the display system according to Figure 1.

[0067] Referring to FIG. 7, as the connecting portion (130) extends along the third direction (DR3), the second cam portion (120) can push the display device (400) further to the other side of the third direction (DR3).

[0068] Accordingly, when viewed based on the plane formed by the second direction (DR2) and the third direction (DR3), the area where the back surface of the cam (110) and the display device (400) overlap can be wider than before the connection part (130) is extended.

[0069] Other explanations are as described in detail in FIGS. 3 and FIGS. 5, and further detailed explanations will be omitted below.

[0070] FIG. 8 is a side view of a display system according to another embodiment.

[0071] Referring to FIG. 8, FIG. 8 is different from FIG. 3 in that the connecting part (130_1) of the cam (100_1) does not include a linear actuator but includes a screw.

[0072] The cam (100) may include a first cam portion (110_1), a second cam portion (120_1), and a connecting portion (130_1). The first cam portion (110_1), the second cam portion (120_1), and the connecting portion (130_1) may be connected and arranged along a third direction (DR3).

[0073] The first cam portion (110_1) can be connected to and fixed by a shaft (200) that passes through the first cam portion (110_1). The planar shape of the first cam portion (110_1) may be a shape in which a portion of a circle has been cut out. The first cam portion (110_1) and the connecting portion (130_1) may be connected via a screw.

[0074] The connecting portion (130_1) may be in the form of a single plate that does not extend along the third direction (DR3). The planar shape of the connecting portion (130_1) may be rectangular, but the embodiments of this specification are not limited thereto and may have various shapes. For example, the planar shape of the connecting portion (130_1) may be square, circular, elliptical, or other polygonal, and may be a rectangular shape with rounded corners.

[0075] The planar shape of the second cam portion (120_1) may be the shape of the remaining part after cutting out the planar shape of the first cam portion (110_1) from a circle. That is, when the first cam portion (110_1) and the second cam portion (120_1) are combined, a single circular shape can be formed. The second cam portion (120_1) may be connected to the connecting portion (130_1) via a screw. At this time, a plurality of screw connection portions may be arranged along the second direction (DR2) and the third direction (DR3) on the second cam portion (120_1). Accordingly, when the connecting part (130_1) is connected through screw coupling parts disposed on one side of the third direction (DR3) of the second cam part (120_1), the total length of the third direction (DR3) of the cam (100_1) can be longer than when it is connected through screw coupling parts disposed on the other side of the third direction (DR3) of the second cam part (120_1).

[0076] Although not illustrated, a plurality of screw coupling parts may also be arranged along the third direction (DR3) in the first cam part (110_1), and as described above, the length of the third direction (DR3) of the cam (100_1) may be adjusted according to the coupling position.

[0077] In the first mode, the connecting portion (130_1) can be connected to a screw positioned at the outermost side of the second cam portion (120_1) (e.g., the other side of the third direction (DR3)), and thus the first cam portion (110_1) and the second cam portion (120_1) can be combined to form a single circular shape. Additionally, since the first cam portion (110_1) is not yet rotated by the shaft (200), the second cam portion (120_1) can be positioned between the second cam portion (120_1) and the display device (400), and the display device (400) may not be bent.

[0078] In the second mode, the connecting part (130_1) is connected in the same way as in the first mode, except that since it is rotated by the shaft (200), a second cam part (120_1) can be placed between the first cam part (110_1) and the display device (400). Accordingly, the display device (400) can be bent by the second cam part (120_1).

[0079] In the third mode, the connecting part (130_1) can be connected to a screw positioned at the innermost part of the second cam part (120_1) (e.g., one side of the third direction (DR3)), and thus, the first cam part (110_1) and the second cam part (120_1) can be spaced apart by the connecting part (130_1), and as the total length of the third direction (DR3) of the cam (100_1) increases, the display device (400) can be bent more than in the second mode.

[0080] Other explanations are described in detail in FIGS. 3, FIG. 5, and FIG. 7, so further detailed explanations will be omitted below.

[0081] FIG. 9 is a top view of a display system according to another embodiment.

[0082] Referring to FIG. 9, FIG. 9 is different from FIG. 2 in that a plurality of shafts (200) are provided and the plurality of shafts (200) are connected and arranged.

[0083] The shaft (200_2) may include a first shaft portion (201), a second shaft portion (202), a third shaft portion (203), and a shaft connecting portion (205). The second shaft portion (202) may extend along a first direction (DR1) and may be positioned between the first shaft portion (201) and the third shaft portion (203). The first shaft portion (201) and the third shaft portion (203) may be positioned at an angle toward the other side of the third direction (DR3) relative to the second shaft portion (202). That is, the first shaft portion (201) may extend toward the other side of the first direction (DR1) and the other side of the third direction (DR3), and the third shaft portion (203) may extend toward one side of the first direction (DR1) and the other side of the third direction (DR3). One side of the extension direction of the third shaft portion (203) can be connected to the motor (300).

[0084] A shaft connecting portion (205) may be disposed between the first shaft portion (201) and the second shaft portion (202), and between the second shaft portion (202) and the third shaft portion (203), respectively. A plurality of shafts (201, 202, 203) connected by the shaft connecting portion (205) can rotate simultaneously. That is, when the third shaft portion (203) connected to the motor through the motor (300) rotates, the rotation can be transmitted to the second shaft portion (202) and the first shaft portion (201) through the shaft connecting portion (205), and thus the second shaft portion (202) and the first shaft portion (201) can also rotate simultaneously.

[0085] A plurality of shafts (201, 202, 203) can each be connected to a plurality of cams (100). For example, a cam (100) connected to a first shaft portion (201) can be positioned on the back surface of the other end of the first direction (DR1) of the display device (400), a cam (100) connected to a third shaft portion (203) can be positioned on the back surface of one end of the first direction (DR1) of the display device (400), and cams (100) connected to a second shaft portion (202) can be positioned on the back surface between one end of the first direction (DR1) and the other end of the display device (400).

[0086] As a plurality of shafts (201, 202, 203) are arranged to surround the back surface of the bent display device (400), the radius of curvature of the display device (400) can be made smaller even if the connecting portion (130) of the cam (100) is not extended. For example, the display device (400) may have a second radius of curvature (R2) even though the connecting portion (130) is not extended. Additionally, if the connecting portion (130) is extended, the radius of curvature of the display device (400) may be smaller than the second radius of curvature (R2).

[0087] Although not illustrated, at least one of the plurality of shaft connecting parts (205) may be fixed to the back surface of the display device (400) in order to arrange the plurality of shafts (201, 202, 203) and the plurality of cams (100) along the back surface of the display device (400).

[0088] Other explanations are described in detail in FIGS. 2, FIGS. 4, and FIGS. 6, so further detailed explanations will be omitted.

[0089] A display system according to various embodiments of the present specification may be described as follows.

[0090] A display system according to various embodiments of the present specification comprises: a curved display device extending along one direction; and a bending device located on the back surface of the curved display device and bending the curved display device in a thickness direction intersecting the one direction, wherein the bending device comprises a shaft extending along the one direction, a motor for rotating the shaft, and a cam connected to the shaft, wherein the cam comprises a first cam portion, a second cam portion, and a connecting portion connecting the first cam portion and the second cam portion.

[0091] According to a display system according to various embodiments of the present specification, in a first mode, the first cam portion and the second cam portion are spaced apart by a predetermined distance, and the curved display device may not be curved.

[0092] According to a display system according to various embodiments of the present specification, in a second mode, the first cam part and the second cam part are spaced apart by a predetermined distance, and the cam is rotated by the motor to bend the curved display device, and the bent curved display device may have a first radius of curvature.

[0093] According to a display system according to various embodiments of the present specification, in a third mode, the separation distance between the first cam part and the second cam part exceeds the predetermined separation distance, the connecting part extends in the thickness direction, the extended cam bends the curved display device, and the bent curved display device has a second radius of curvature, and the second radius of curvature may be smaller than the first radius of curvature.

[0094] According to a display system according to various embodiments of the present specification, the connection may include a linear actuator.

[0095] According to a display system according to various embodiments of the present specification, the connecting portion may be connected to the first cam portion and the second cam portion through a screw.

[0096] According to various embodiments of the present specification, a display system further comprises a control board, wherein the control board comprises a memory unit, a motor power providing unit, and a connection length adjusting unit, wherein the memory unit stores information regarding the radius of curvature of the curved display device according to the length of the connection unit, the motor power providing unit controls the motor, and the connection length adjusting unit can adjust the length of the connection unit based on the information stored in the memory unit.

[0097] According to a display system according to various embodiments of the present specification, the shaft may include a first shaft portion, a second shaft portion, and a shaft connecting portion connecting the first shaft portion and the second shaft portion.

[0098] According to a display system according to various embodiments of the present specification, the shaft connection may be fixed to the back surface of the curved display device.

[0099] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the technical configuration of the present invention described above may be implemented in other specific forms without altering the technical concept or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. Furthermore, the scope of the present invention is defined by the claims set forth below rather than by the detailed description above. Additionally, all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0100] 10: Display System 100: Cam 110: 1st Camp 120: 2nd Camp 130: Connection 200: Shaft 205: Shaft connection 300: Motor 400: Display device 500: Control board

Claims

Claim 1 A display system comprising: a curved display device extending along one direction; and a bending device located on the back surface of the curved display device and bending the curved display device in a thickness direction intersecting the one direction, wherein the bending device comprises a shaft extending along the one direction, a motor for rotating the shaft, and a cam connected to the shaft, and wherein the cam comprises a first cam portion, a second cam portion, and a connecting portion connecting the first cam portion and the second cam portion. Claim 2 In claim 1, in the first mode, the first cam part and the second cam part are spaced apart by a predetermined spacing distance, and the curved display device is a non-curved display system. Claim 3 In claim 1, in a second mode, the first cam part and the second cam part are spaced apart by a predetermined distance, and the cam is rotated by the motor to bend the curved display device, and the bent curved display device has a first radius of curvature. Claim 4 In claim 3, in the third mode, the separation distance between the first cam part and the second cam part exceeds the predetermined separation distance, the connecting part extends in the thickness direction, the extended cam bends the curved display device, the bent curved display device has a second radius of curvature, and the second radius of curvature is smaller than the first radius of curvature. Claim 5 In claim 1, the connecting part comprises a linear actuator in a display system. Claim 6 In claim 1, the connecting part is a display system connected to the first cam part and the second cam part through a screw. Claim 7 A display system according to claim 1, further comprising a control board, wherein the control board comprises a memory unit, a motor power providing unit, and a connection length adjusting unit, wherein the memory unit stores information regarding the radius of curvature of the curved display device according to the length of the connection unit, the motor power providing unit controls the motor, and the connection length adjusting unit adjusts the length of the connection unit based on the information stored in the memory unit. Claim 8 A display system according to claim 1, wherein the shaft comprises a first shaft portion, a second shaft portion, and a shaft connecting portion connecting the first shaft portion and the second shaft portion. Claim 9 In claim 8, the shaft connecting part is a display system fixed to the back surface of the curved display device.

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