Holding system for foldable display device and foldable display kit

Abstract

A holding system for a foldable display apparatus and a foldable display kit are provided. The foldable display kit includes a foldable display apparatus and a holding system on the foldable display apparatus configured to fold and unfold the foldable display apparatus, wherein the holding system includes a motor configured to generate a rotational force, a rotating arm configured to rotate by the rotational force, a fixed plate spaced apart from the rotating arm, a moving plate on the fixed plate and configured to move by the rotating arm, and a magnetic unit fixed on the moving plate, and wherein the foldable display apparatus in a folded state is fixed to the magnetic unit by a magnetic force.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2021-0188230, filed on December 27, 2021, which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to foldable display devices, and more specifically, to a holding system for foldable display devices having a large size, and a foldable display kit including the holding system. Background Technology

[0004] Electroluminescent displays, as a type of flat panel display, offer a wider viewing angle compared to liquid crystal displays because they are self-emissive, thin, lightweight, and consume less power, as they do not require a backlight unit. Furthermore, electroluminescent displays are driven by low-voltage direct current (DC) and have a fast response time. They are also resistant to external shocks and can operate over a wide temperature range because their components are solid-state. Electroluminescent displays can also be manufactured at low cost.

[0005] Recently, foldable display devices, which can be freely folded and unfolded by forming components of an electroluminescent display device on a flexible substrate, have been widely developed and applied in various fields.

[0006] Foldable display devices are unfolded to provide a wide screen when displaying images, and folded to reduce size when not displaying images, thus offering the advantages of convenient transportation and / or storage.

[0007] Hinges are widely used in foldable display panels to maintain their unfolded and folded states. Hinges can stably hold small foldable display devices, such as smartphones, in both unfolded and folded states. However, when hinges are used in large foldable display devices with a diagonal area of ​​40 inches or more, the foldable display panel is more likely to be damaged during the folding, unfolding, and / or moving process because foldable display panels have a large repulsive force to be unfolded and are relatively fragile compared to ordinary display panels. Summary of the Invention

[0008] Therefore, this disclosure relates to a holding system for a foldable display device having a large size, and a foldable display kit including the holding system, which substantially eliminates one or more problems caused by the aforementioned limitations and disadvantages.

[0009] More specifically, the disclosure provides a holding system capable of stably maintaining a folded state and an unfolded state for a foldable display apparatus having a large size and a foldable display kit including the same.

[0010] Additional features and aspects will be set forth in the description below, and in part will become apparent to those skilled in the art, which, together with the description, can implement the disclosure by means of the written description and examples provided herein. Other features and aspects of the inventive concept will become apparent from the description, the drawings, and the claims, as well as from the embodiments that are specifically described in the written description.

[0011] To implement these and other aspects of the disclosure as embodied and broadly described herein, a foldable display kit can include a foldable display apparatus, a holding system on a rear surface of the foldable display apparatus, and the holding system configured to fold and unfold the foldable display apparatus. The holding system can include a motor configured to generate a rotational force, a rotating arm configured to rotate by the rotational force of the motor to fold and unfold the foldable display apparatus, a fixed plate spaced apart from the rotating arm when the foldable display apparatus is in an unfolded state, a moving plate on the fixed plate and configured to move relative to the fixed plate by the rotating arm, and a magnetic unit fixed on the moving plate. The foldable display apparatus in a folded state can be fixed to the magnetic unit by a magnetic force.

[0012] In another aspect, a holding system for a foldable display apparatus can include a frame, a motor housed in the frame and configured to generate a rotational force, a rotating arm configured to rotate by the rotational force of the motor, a fixed plate connected to the frame and spaced apart from the rotating arm, a moving plate on the fixed plate and configured to move relative to the fixed plate by the rotating arm, and a magnetic unit fixed on the moving plate. The moving plate and the magnetic unit can be configured to move relative to the fixed plate between a first position and a second position by the rotating arm.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the inventive concept claimed. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate aspects of the disclosure, and together with the description serve to explain various principles of the disclosure.

[0015] In the drawings:

[0016] Figure 1is a view schematically showing a foldable display kit in an unfolded state according to an embodiment of the present disclosure from a front side;

[0017] Figure 2 is a view schematically showing a foldable display kit in an unfolded state according to an embodiment of the present disclosure from a back side;

[0018] Figure 3 is a view schematically showing a foldable display kit in a folded state according to an embodiment of the present disclosure from a front side;

[0019] Figure 4 is an exploded perspective view schematically showing a foldable display apparatus according to an embodiment of the present disclosure;

[0020] Figure 5 is a schematic cross-sectional view of a display panel of a foldable display apparatus according to an embodiment of the present disclosure;

[0021] Figure 6 is a schematic top view of a holder for a foldable display apparatus according to an embodiment of the present disclosure;

[0022] Figure 7 is a schematic perspective view of a holder for a foldable display apparatus according to an embodiment of the present disclosure;

[0023] Figure 8 is a schematic perspective view of a holder excluding a front plate and side plates in Figure 7 ;

[0024] Figure 9 is an exploded perspective view schematically showing a rotating arm of a holder for a foldable display apparatus according to an embodiment of the present disclosure;

[0025] Figure 10 is a view schematically showing a fixed plate and a moving plate attached to each other in a holder for a foldable display apparatus according to an embodiment of the present disclosure;

[0026] Figure 11 is a view schematically showing a fixed plate of a holder for a foldable display apparatus according to an embodiment of the present disclosure;

[0027] Figure 12 is a view schematically showing a moving plate of a holder for a foldable display apparatus according to an embodiment of the present disclosure;

[0028] Figure 13 is a schematic top view of a foldable display apparatus and a holder in an unfolded state according to an embodiment of the present disclosure;

[0029] Figure 14 is a schematic top view of a foldable display apparatus and a holder in a folded state according to an embodiment of the disclosure;

[0030] Figure 15 is a view schematically illustrating a coupling relationship between a foldable display apparatus in an unfolded state and a rotating arm according to an embodiment of the disclosure;

[0031] Figure 16 is a view schematically illustrating a coupling relationship between a foldable display apparatus in a folded state and a rotating arm according to an embodiment of the disclosure;

[0032] Figure 17 is a view schematically illustrating a positional relationship between a rotating arm, a moving plate, and a magnetic unit in an unfolded state according to an embodiment of the disclosure; and

[0033] Figure 18 is a view schematically illustrating a positional relationship between a rotating arm, a moving plate, and a magnetic unit in a folded state according to an embodiment of the disclosure. DETAILED DESCRIPTION

[0034] Reference will now be made in detail embodiments of the disclosure, examples of which are illustrated in the accompanying drawings.

[0035] Figures 1 to 3 is a view schematically illustrating a foldable display kit according to an embodiment of the disclosure. Figure 1 a foldable display kit in an unfolded state is shown from the front, Figure 2 a foldable display kit in an unfolded state is shown from the back, and Figure 3 a foldable display kit in a folded state is shown from the front.

[0036] In Figures 1 to 3 , a foldable display kit according to an embodiment of the disclosure includes a foldable display apparatus 100 and a holding system 200.

[0037] The foldable display apparatus 100 has a relatively large size, for example, 40 inches or more in diagonal length, and a center of a rear surface of the foldable display apparatus 100 is fixed to the holding system 200. Metal plates 180 are disposed on the rear surface of the foldable display apparatus 100 and adjacent to both ends, particularly, left and right ends of the foldable display apparatus 100, respectively.

[0038] The holding system 200 includes a holder 210, a support portion 250, and a handle portion 260.

[0039] The holder 210 is a main body portion on which the foldable display device 100 is fixed, and has a prismatic shape including a front surface and two side surfaces, i.e., a triangular column shape. A rear surface of the foldable display device 100 is fixed to the front surface of the holder 210. A plurality of components for folding or unfolding the foldable display device 100 are disposed inside the holder 210, and are surrounded and protected by a cover. These components will be described in detail later.

[0040] The support portion 250 is disposed at a lower end of the holder 210 for supporting the holder 210. The support portion 250 includes at least three legs, and each leg can be disposed at a respective portion where two surfaces of the holder 210 intersect.

[0041] The handle portion 260 is disposed at an upper end of the holder 210, and is used to move the foldable display device 100 in a folded state.

[0042] As shown in FIGS. 1A and 1B, the foldable display device 100 displays an image in an unfolded state in which the center is fixed to the front surface of the holder 210 and the two end portions are arranged on the same plane as the center, so that the display surface is flat. Figure 1 and Figure 2 As shown in FIGS. 1A and 1B, the foldable display device 100 displays an image in an unfolded state in which the center is fixed to the front surface of the holder 210 and the two end portions are arranged on the same plane as the center, so that the display surface is flat.

[0043] On the other hand, as shown in FIGS. 2A and 2B, when the foldable display device 100 is in a folded state, the center is fixed to the front surface of the holder 210 and the two end portions are fixed to the side surfaces of the holder 210, thereby forming a substantially triangular column shape. Thus, the foldable display device 100 can be more conveniently stored and / or moved by reducing the size. In this case, the metal plate 180 of the foldable display device 100 is fixed to a magnetic unit inside the holder 210, and this will be described in detail later. Figure 3

[0044] FIG. 3 is a perspective view schematically showing a foldable display device according to an embodiment of the present disclosure. Figure 4 FIG. 4 is a schematic cross-sectional view of a display panel of a foldable display device according to an embodiment of the present disclosure, and shows one pixel area. Figure 5 In

[0045] In Figure 4 the foldable display device 100 according to an embodiment of the present disclosure includes a display panel 110, an intermediate chassis 150, rear covers 160 and 170, and a metal plate 180.

[0046] The display panel 110 displays an image. The display panel 110 can be an electroluminescent display panel including a light emitting diode and a thin film transistor.

[0047] Specifically, referring to Figure 5 A shield pattern 121 of a conductive material such as metal is formed over the substrate 111. The substrate 111 can be formed of a material having flexibility, and can be a glass substrate or a plastic substrate. For example, polyimide can be used as the plastic substrate, but the embodiment is not limited thereto.

[0048] The shield pattern 121 can be formed of at least one of aluminum (Al), copper (Cu), molybdenum (Mo), titanium (Ti), chromium (Cr), nickel (Ni), tungsten (W), or an alloy thereof, and can have a single layer or a multi-layer structure. For example, the shield pattern 121 can have a double-layer structure including a lower layer of molybdenum titanium (MoTi) and an upper layer of copper (Cu), and the upper layer can have a thickness thicker than the lower layer.

[0049] A buffer layer 112 of an insulating material is formed over the shield pattern 121. The buffer layer 112 is arranged substantially over the entire surface of the substrate 111. The buffer layer 112 can be formed of an inorganic material such as silicon oxide (SiO2) or silicon nitride (SiNx), and can be a single layer or a multi-layer.

[0050] A semiconductor layer 122 is formed over the buffer layer 112 and is patterned. The semiconductor layer 122 is arranged to overlap the shield pattern 121. The semiconductor layer 122 can be formed of an oxide semiconductor material. In this case, the shield pattern 121 can block light incident on the semiconductor layer 122, and can prevent the semiconductor layer 122 from being deteriorated by light.

[0051] Alternatively, the semiconductor layer 122 can be formed of polycrystal silicon, and both end portions of the semiconductor layer 122 can be doped with impurities. In this case, the shield pattern 121 can be omitted.

[0052] A gate insulating layer 113 of an insulating material is formed over the semiconductor layer 122, covering substantially over the entire surface of the substrate 111. The gate insulating layer 113 can be formed of an inorganic insulating material such as silicon oxide (SiO2) or silicon nitride (SiNx). When the semiconductor layer 122 is made of an oxide semiconductor material, the gate insulating layer 113 can be formed of silicon oxide (SiO2). Alternatively, when the semiconductor layer 122 is made of polycrystal silicon, the gate insulating layer 113 can be formed of silicon oxide (SiO2) or silicon nitride (SiNx).

[0053] A gate electrode 123 of an electrically conductive material such as a metal is formed on the gate insulating layer 113 corresponding to the center of the semiconductor layer 122. The gate electrode 123 can be formed of at least one of aluminum (Al), copper (Cu), molybdenum (Mo), titanium (Ti), chromium (Cr), nickel (Ni), tungsten (W), or an alloy thereof, and can have a single layer or a multi-layer structure. For example, the gate electrode 123 can have a double-layer structure including a lower layer of molybdenum titanium (MoTi) and an upper layer of copper (Cu), and the upper layer can have a thickness thicker than the lower layer.

[0054] In addition, a gate line (not shown) can be formed on the gate insulating layer 113 by the same process as the gate electrode 123. The gate line can extend in the first direction, and can be connected to the gate electrode 123.

[0055] In an embodiment of the disclosure, the gate insulating layer 113 is formed substantially over the entire surface of the substrate 111. Alternatively, however, the gate insulating layer 113 can be patterned to have the same shape as the gate electrode 123.

[0056] An interlayer insulating layer 114 of an insulating material is formed on the gate electrode 123, substantially covering over the entire surface of the substrate 111. The interlayer insulating layer 114 can be formed of an inorganic insulating material such as silicon oxide (SiO2) or silicon nitride (SiNx). Alternatively, the interlayer insulating layer 114 can be formed of an organic insulating material such as photoacryl or benzocyclobutene.

[0057] The interlayer insulating layer 114 has a first contact hole 113a and a second contact hole 113b that respectively expose the top surfaces of the two end portions of the semiconductor layer 122. The first contact hole 113a and the second contact hole 113b are disposed at both sides of the gate electrode 123, and are spaced apart from the gate electrode 123. The first contact hole 113a and the second contact hole 113b are also formed in the gate insulating layer 113. Alternatively, when the gate insulating layer 113 is patterned to have the same shape as the gate electrode 123, the first contact hole 113a and the second contact hole 113b are formed only in the interlayer insulating layer 114.

[0058] Source and drain electrodes 124 and 125 of an electrically conductive material, for example, a metal, are formed on the interlayer insulating layer 114. The source and drain electrodes 124 and 125 can be formed of at least one of aluminum (Al), copper (Cu), molybdenum (Mo), titanium (Ti), chromium (Cr), nickel (Ni), tungsten (W), or an alloy thereof, and can have a single layer or a multi-layer structure. For example, the source and drain electrodes 124 and 125 can have a double-layer structure including a lower layer of molybdenum titanium (MoTi) and an upper layer of copper (Cu), and the upper layer can have a thickness thicker than the lower layer. Alternatively, the source and drain electrodes 124 and 125 can have a triple-layer structure.

[0059] In addition, a data line (not shown) and a power supply line (not shown) can be further formed on the interlayer insulating layer 114 and can be formed by the same process as the source electrode 124 and the drain electrode 125.

[0060] The source electrode 124 and the drain electrode 125 are spaced apart from each other with the gate electrode 123 located therebetween, and the source electrode 124 and the drain electrode 125 are in contact with both end portions of the semiconductor layer 122 through the first contact hole 113a and the second contact hole 113b, respectively.

[0061] Although not shown in the drawings, the data line extends in the second direction and crosses the gate line, thereby defining a pixel region. The power supply line for supplying a high potential voltage is spaced apart from the data line.

[0062] The semiconductor layer 122, the gate electrode 123, and the source electrode 124 and the drain electrode 125 form a thin film transistor T. The thin film transistor T has a coplanar structure in which the gate electrode 123 and the source electrode 124 and the drain electrode 125 are located at the same side with respect to the semiconductor layer 122.

[0063] Alternatively, the thin film transistor T can have a reverse staggered structure in which the gate electrode and the source electrode and the drain electrode are located at different sides with respect to the semiconductor layer. That is, the gate electrode can be arranged below the semiconductor layer, and the source electrode and the drain electrode can be arranged above the semiconductor layer. The semiconductor layer can be formed of an oxide semiconductor or amorphous silicon.

[0064] Meanwhile, one or more thin film transistors having substantially the same structure as the thin film transistor T can be further formed on the substrate 111.

[0065] A passivation layer 115 of insulating material is formed on the source electrode 124 and the drain electrode 125, substantially covering over the entire surface of the substrate 111. The passivation layer 115 can be formed of an inorganic insulating material such as silicon oxide (SiO2) or silicon nitride (SiNx).

[0066] A planarization layer 116 of insulating material is formed on the passivation layer 115, substantially covering over the entire surface of the substrate 111. The planarization layer 116 can be formed of an organic insulating material such as photoacryl or benzocyclobutene. The planarization layer 116 can have a flat top surface.

[0067] The planarization layer 116 and the passivation layer 115 have a drain contact hole 116a that exposes the drain electrode 125. The drain contact hole 116a can be spaced apart from the second contact hole 113b. Alternatively, the drain contact hole 116a can be disposed right above the second contact hole 113b.

[0068] A first electrode 132 is formed on the planarization layer 116 and formed of a conductive material having a relatively high work function. The first electrode 132 is disposed in the pixel region and contacts the drain electrode 125 through the drain contact hole 116a. For example, the first electrode 132 can be formed of a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO), but is not limited thereto.

[0069] The electroluminescent display panel according to the embodiment of the disclosure can be a top emission type in which light of the light emitting diode is output in a direction opposite to the substrate 111. Accordingly, the first electrode 132 can further include a reflective electrode or a reflective layer formed of a metal material having a relatively high reflectivity under the transparent conductive material. For example, the reflective electrode or the reflective layer can be formed of an aluminum-palladium-copper (APC) alloy, silver (Ag), or aluminum (Al). The first electrode 132 can have a three-layer structure of ITO / APC / ITO, ITO / Ag / ITO, or ITO / Al / ITO, but is not limited thereto.

[0070] A dam 117 of an insulating material is formed on the first electrode 132. The dam 117 overlaps and covers edges of the first electrode 132 and exposes a central portion of the first electrode 132.

[0071] At least a top surface of the dam 117 is hydrophobic, and a side surface of the dam 117 can be hydrophobic or hydrophilic. The dam 117 can be formed of an organic insulating material having hydrophobicity. Alternatively, the dam 117 can be formed of an organic insulating material having hydrophilicity and can be subjected to a hydrophobic treatment.

[0072] In the disclosure, the dam 117 has a single structure including a single dam. However, the dam 117 can have a dual structure. That is, the dam 117 can have a dual structure including a lower hydrophilic dam and an upper hydrophobic dam.

[0073] Next, a light emitting layer 134 is formed on the first electrode 132 exposed by the dam 117.

[0074] Although not shown in the drawings, the light emitting layer 134 can include a first charge auxiliary layer, a light emitting material layer, and a second charge auxiliary layer sequentially arranged above the first electrode 132. The light emitting material layer can be formed of any one of red, green, and blue light emitting materials, but is not limited thereto. The light emitting material can be an organic light emitting material such as a phosphorescent compound or a fluorescent compound, or can be an inorganic light emitting material such as a quantum dot.

[0075] The first charge auxiliary layer can be a hole auxiliary layer, and the hole auxiliary layer can include at least one of a hole injection layer (HIL) and a hole transport layer (HTL). In addition, the second charge auxiliary layer can be an electron auxiliary layer, and the electron auxiliary layer can include at least one of an electron injection layer (EIL) and an electron transport layer (ETL). However, the present disclosure is not limited thereto.

[0076] The light emitting layer 134 can be formed by a solution process or an evaporation process. When the light emitting layer 134 is formed by the solution process, the height of the light emitting layer 134 in the area adjacent to the bank 117 can increase as it approaches the bank 117.

[0077] A second electrode 136 of a conductive material having a relatively low work function is formed on the light emitting layer 134, substantially covering over the entire surface of the substrate 111. The second electrode 136 can be formed of aluminum (Al), magnesium (Mg), silver (Ag), or an alloy thereof. The second electrode 136 has a relatively thin thickness so that light from the light emitting layer 134 can be transmitted therethrough. Alternatively, the second electrode 136 can be formed of a transparent conductive material such as indium gallium oxide (IGO), but is not limited thereto.

[0078] The first electrode 132, the light emitting layer 134, and the second electrode 136 constitute a light emitting diode De. The first electrode 132 can serve as an anode, and the second electrode 136 can serve as a cathode, but is not limited thereto.

[0079] As described above, the electroluminescent display panel according to the embodiment of the present disclosure can be a top emission type display panel in which light from the light emitting layer 134 of the light emitting diode De is output toward a direction opposite to the substrate 111, i.e., to the outside through the second electrode 136. The top emission type display panel can have a wider emission area compared to a bottom emission type display panel having the same size, thereby improving luminance and reducing power consumption.

[0080] In addition, an encapsulation layer (not shown) is formed on the second electrode 136, substantially covering over the entire surface of the substrate 111, to block moisture or oxygen introduced from the outside, thereby protecting the light emitting diode De.

[0081] Referring again to Figure 4The middle bracket 150 is disposed on the rear surface of the display panel 110 with respect to the X direction. The middle bracket 150 supports the display panel 110 and has a rectangular frame shape. The middle bracket 150 can be formed of metal or plastic.

[0082] The rear covers 160 and 170 are disposed on the rear surface of the middle bracket 150. The rear covers 160 and 170 protect the display panel 110 and include a first rear cover 160 and a second rear cover 170 to implement a folding characteristic. The first rear cover 160 is disposed between the middle bracket 150 and the second rear cover 170.

[0083] In addition, each of the first rear cover 160 and the second rear cover 170 is formed of a plurality of separate parts to improve the folding characteristic. For example, the first rear cover 160 can be divided into three parts connected by an elastic spring 160a, and can further include a part connecting upper and lower ends on the rear surface thereof. On the other hand, the second rear cover 170 can be divided into two parts, and a plurality of guide rails 170a extending in the Y direction and spaced apart from each other in the Z direction can be provided in each part of the second rear cover. However, the present disclosure is not limited thereto. The first rear cover 160 and the second rear cover 170 can have various structures capable of improving the folding characteristic.

[0084] The first rear cover 160 can be formed of plastic or metal. For example, the metal can be aluminum or stainless steel.

[0085] Meanwhile, the second rear cover 170 can be formed of metal. For example, the second rear cover 170 can be formed of aluminum.

[0086] Two metal plates 180 are disposed on the rear surface of the second rear cover 170. The metal plates 180 extend in the Z direction and are spaced apart from each other in the Y direction. Each metal plate 180 is disposed between the edge of the second rear cover 170 and the guide rail 170a, spaced apart from the guide rail 170a, and fixed to the rear surface of the second rear cover 170. In this case, the metal plate 180 can be attached to the rear surface of the second rear cover 170 by an adhesive member.

[0087] The metal plate 180 can be formed of a magnetic metal. For example, the metal plate 180 can be formed of iron (Fe), nickel (Ni), or cobalt (Co), but is not limited thereto.

[0088] A configuration of a holder for fixing the foldable display device 100 in the unfolded state and the folded state will be described with reference to Figures 6 to 8 A configuration of a holder for fixing the foldable display device 100 in the unfolded state and the folded state will be described with reference to

[0089] Figure 6 is a schematic top view of a holder for a foldable display device according to an embodiment of the present disclosure, Figure 7is a schematic perspective view of a holder for a foldable display apparatus according to an embodiment of the disclosure, and Figure 8 is a schematic perspective view of a holder excluding a front plate and side plates in Figure 7 . Figure 7 and Figure 8 together show a support portion under the holder, and the holder will be described with reference to Figure 4 together.

[0090] In Figures 6 to 8 , the holder 210 according to an embodiment of the disclosure includes a shielding portion, a driving portion, and a state conversion portion. The shielding portion includes a front plate 212 and side plates 214. The driving portion includes a motor 222, a gear 224, a shaft 226, and a rotating arm 228. The driving portion can further include a frame 220 for supporting or housing various components including, for example, the motor 222, the gear 224, and the shaft 226. The state conversion portion includes a fixed plate 232, a moving plate 234, a magnetic unit 236, and a restoring unit 238. Here, the front plate 212 is disposed at the front, the motor 222 is disposed at the center inside the holder 210, and the other components are symmetrically disposed in the Y direction with respect to the motor 222. For ease of explanation, only one set of the symmetric components will be described in more detail.

[0091] Specifically, the front plate 212 of the shielding portion is located at the front side of the holder 210, and the side plates 214 are located at the side surfaces of the holder 210. Here, in the context of the drawings, the front plate 212 can be parallel to the YZ plane.

[0092] The front plate 212 is a portion to which the foldable display apparatus 100 is assembled. The front plate 212 remains rigid and separates the foldable display apparatus 100 from the driving portion, so that the foldable display apparatus 100 is prevented from being contaminated by particles from the motor 222 or the gear 224 of the driving portion. The front plate 212 can have a hole corresponding to the guide rail 170a of the second rear cover 170 of the foldable display apparatus 100. The front plate 212 can be formed of plastic or metal.

[0093] The side plates 214 serve as a partition between the metal plate 180 of the foldable display apparatus 100 and the magnetic unit 236 for controlling the magnetic force of the magnetic unit 236. The side plates 214 can be formed of plastic and can be omitted.

[0094] The driving portion and the state conversion portion are located inside the holder 210 surrounded by the front plate 212 and the side plates 214.

[0095] At this time, the motor 222 of the driving portion is located at the center of the rear surface of the front plate 212 in the X direction. The motor 222 generates a rotational force having an axis of rotation in the Y direction.

[0096] A shaft 226 is located at each of both sides of the motor 222 in the Y direction. The shaft 226 extends in the Z direction and rotates with respect to the rotation axis in the Z direction. The shaft 226 is connected to the motor 222 through a gear 224.

[0097] The gear 224 transmits the rotational force of the motor 222 to the shaft 226. The gear 224 can be a bevel gear that transmits power between two intersecting shafts. The gear 224 includes a first gear connected to the motor 222 and a second gear connected to the shaft 226. The gear 224 changes the rotational force from the motor 222 having a rotation axis in the Y direction into a rotational force having a rotation axis in the Z direction and transmits the rotational force to the shaft 226, thereby rotating the shaft 226 with respect to the rotation axis in the Z direction.

[0098] At least one rotating arm 228 is connected to the shaft 226. The shaft 226 transmits the rotational force of the motor 222 received from the gear 224 to the rotating arm 228. The rotating arm 228 can have a length and a width substantially in the XY plane and can be arranged such that the length is parallel to the X direction. The rotating arms 228 rotate together on the XY plane when the shaft 226 rotates.

[0099] For example, three rotating arms 228 can be connected to one shaft 226. However, the present disclosure is not limited thereto, and the number of rotating arms 228 can vary.

[0100] Next, a state conversion portion is disposed to be spaced apart from the shaft 226. As described above, the state conversion portion includes a fixed plate 232, a moving plate 234, a magnetic unit 236, and a restoring unit 238.

[0101] The fixed plate 232 is fixed to the driving portion, for example, to the frame 220. The fixed plate 232 supports the moving plate 234 and the magnetic unit 236. The fixed plate 232 can be formed of plastic or metal.

[0102] The moving plate 234 is placed on the fixed plate 232 and moves horizontally with respect to the fixed plate 232. The moving plate 234 can be formed of plastic or metal.

[0103] The fixed plate 232 and the moving plate 234 are parallel to the side plate 214. That is, the fixed plate 232 and the moving plate 234 are parallel to the side surface of the holder 210.

[0104] At least one magnetic unit 236 is fixed to the moving plate 234. The position of the magnetic unit 236 is changed by the movement of the moving plate 234. The magnetic unit 236 can be fixed to the moving plate 234 by a screw. However, the present disclosure is not limited thereto, and the magnetic unit 236 can be fixed to the moving plate 234 by an adhesive structure or a structural fastening member.

[0105] The magnetic units 236 can include magnets. For example, the magnets can be formed of neodymium (Nd), and can be Sarah magnets having screw holes for being fixed to the moving plate 234. However, the present disclosure is not limited thereto.

[0106] Although it is shown in the drawings that three magnetic units 236 are provided on the moving plate 234, the present disclosure is not limited thereto, and the number of the magnetic units 236 can vary.

[0107] Meanwhile, a restoring unit 238 is connected to the fixed plate 232 and the moving plate 234. The restoring unit 238 has an elastic force, and provides a restoring force to the moving plate 234 that has been moved. For example, the restoring unit 238 can include one or more elastic springs, and two elastic springs can be provided between the fixed plate 232 and the moving plate 234.

[0108] Accordingly, when a force is applied, the moving plate 234 moves on the fixed plate 232 in one direction, thereby changing the position of the magnetic units 236. When the force is removed, the moving plate 234 moves on the fixed plate 232 in the opposite direction by the restoring unit 238, thereby returning the magnetic units 236 to their initial positions.

[0109] The fixed plate 232 and the moving plate 234 can include a plurality of mutually corresponding holes and protrusions for coupling and relative movement, which will be described in detail later.

[0110] The movement of the moving plate 234 is performed by the rotating arm 228, and will be described with reference to Figure 9 The rotating arm 228 of the holder 210 for the foldable display apparatus according to the embodiment of the present disclosure will be described in detail.

[0111] Figure 9 is a perspective view schematically showing the rotating arm of the holder for the foldable display apparatus according to the embodiment of the present disclosure.

[0112] In Figure 9 , the rotating arm 228 includes a first arm portion 228a, a second arm portion 228b, and a third arm portion 228c.

[0113] The first arm portion 228a and the second arm portion 228b are arranged perpendicular to each other in the Z direction in the context of the drawings, symmetrical with respect to the XY plane, and fixed to the third arm portion 228c. Each of the first arm portion 228a and the second arm portion 228b includes a first portion 2281, a second portion 2282, and a third portion 2283.

[0114] The first portion 2281 is parallel to the XY plane, and the length in the X direction can be greater than the length, i.e., the width, in the Y direction.

[0115] Here, the first portion 2281 has first and second end portions opposite each other in the X direction and third and fourth end portions opposite each other in the Y direction. The second portion 2282 is connected to the first end portion of the first portion 2281, and the third arm portion 228c is disposed at the second end portion of the first portion 2281. Also, the third portion 2283 is connected to the third and fourth end portions of the first portion 2281, respectively. The second and third portions 2282 and 2283 are perpendicular to the first portion 2281.

[0116] The second portion 2282 is a portion of the guide rail 170a of the second rear cover 170 of the foldable display device 100 coupled to Figure 4 In order to facilitate the coupling, the width of the second portion 2282 is less than the width of the first portion 2281 in the Y direction. In this case, the width of the first portion 2281 can decrease toward the first end portion, and thus, the width of the first end portion of the first portion 2281 is less than the width of the second end portion.

[0117] The third portion 2283 is a portion fixed to the third arm portion 228c, and the length of each third portion 2283 is longer than the length of the first portion 2281 in the X direction. In this case, the third portion 2283 extends beyond the second end portion of the first portion 2281. Thus, the third arm portion 228c is disposed between the two third portions 2283.

[0118] The third arm portion 228c is a portion fixed to the shaft 226 of Figure 8 and has a hole through which the shaft 226 of Figure 8 passes in the Z direction. The third arm portion 228c can have a substantially cubic shape.

[0119] The first and second arm portions 228a and 228b of the rotating arm 228 are disposed such that the first portion 2281 contacts and is fixed to each other. The first and second arm portions 228a and 228b are fixed to the third arm portion 228c through the third portion 2283 and to the shaft 226 of Figure 8 through the third arm portion 228c. In this case, a fastening member such as a screw can be used for the fixing, and the first portion 2281 of the first and second arm portions 228a and 228b, the third portion 2283 of the first and second arm portions 228a and 228b, and the third arm portion 228c can have holes corresponding to the fastening member.

[0120] Next, the fixed plate and the moving plate according to the embodiments of the disclosure will be described in detail with reference to Figure 10 , Figure 11 and Figure 12 .

[0121] Figure 10 is a view schematically illustrating a fixed plate and a moving plate attached to each other in a holder for a foldable display apparatus according to an embodiment of the present disclosure, and together illustrates a magnetic unit and a restoring unit. Figure 11 is a view schematically illustrating a fixed plate of a holder for a foldable display apparatus according to an embodiment of the present disclosure, and Figure 12 is a view schematically illustrating a moving plate of a holder for a foldable display apparatus according to an embodiment of the present disclosure.

[0122] In Figure 10 , Figure 11 and Figure 12 , the moving plate 234 is disposed on the fixed plate 232, the magnetic unit 236 is fixed to the moving plate 234, and the restoring unit 238 is connected to the fixed plate 232 and the moving plate 234.

[0123] The fixed plate 232 includes at least a first fixing hole 232a, at least a first fixing protrusion 232b, at least a first connecting portion 232c, at least a second fixing protrusion 232d, and at least a second fixing hole 232e. The moving plate 234 includes at least a moving hole 234a, at least a first protrusion hole 234b, at least a connecting hole 234c, at least a second protrusion hole 234d, and at least a second connecting portion 234e.

[0124] The first fixing hole 232a corresponds to the moving hole 234a. The first fixing protrusion 232b corresponds to the first protrusion hole 234b. The first connecting portion 232c corresponds to the connecting hole 234c. The second fixing protrusion 232d corresponds to the second protrusion hole 234d. Meanwhile, although not shown in the drawings, the second fixing hole 232e corresponds to a moving protrusion provided on a rear surface of the moving plate 234. In addition, the second connecting portion 234e corresponds to the first connecting portion 232c and the connecting hole 234c.

[0125] Each of the fixed plate 232 and the moving plate 234 has a symmetrical structure in the vertical direction in the context of the drawings.

[0126] The first fixing hole 232a is provided at one edge of the fixed plate 232 adjacent to the rotation arm 228, i.e., at a first edge adjacent to the shaft 226 of the rotation arm 228, and one side of the fixing hole 232a is open. The first fixing hole 232a is disposed to correspond to the rotation arm 228 of the rotation arm 228, and serves as a movement path of the rotation arm 228 of the rotation arm 228 for movement of the moving plate 234. Accordingly, the first fixing hole 232a is open to the outside of the fixed plate 232. Figure 8 Figure 8 Figure 8 Figure 8 ​​​The same number of rotating arms 228 as the number of the first fixing holes 232a are provided. For example, one first fixing hole 232a can be disposed in each of the upper, middle, and lower regions of the fixing plate 232. However, the present disclosure is not limited thereto, and the first fixing holes 232a and Figure 8 The number of rotating arms 228 can vary according to the size of the foldable display device 100. Figure 4 The number of rotating arms 228 can vary according to the size of the foldable display device 100.

[0127] The first fixing protrusion 232b and the second fixing protrusion 232d are disposed to be spaced apart from each other vertically and horizontally between adjacent first fixing holes 232a. The first connecting portion 232c and the second fixing hole 232e are disposed to be spaced apart from each other horizontally between the first fixing protrusion 232b and the second fixing protrusion 232d.

[0128] The first fixing protrusion 232b is disposed in a first protrusion hole 234b of the moving plate 234 to prevent the moving plate 234 from being separated from the fixing plate 232 and to guide the movement of the moving plate 234.

[0129] The first connecting portion 232c is exposed through a connecting hole 234c of the moving plate 234 and is connected to one end of the restoring unit 238. The first connecting portion 232c is preferably disposed near the first edge of the fixing plate 232 adjacent to the shaft 226. Figure 8

[0130] The second fixing protrusion 232d is disposed in a second protrusion hole 234d of the moving plate 234 to prevent the moving plate 234 from being separated from the fixing plate 232 and to guide the movement of the moving plate 234.

[0131] Meanwhile, as described above, the second fixing hole 232e corresponds to the moving protrusion provided on the rear surface of the moving plate 234, and thus the second fixing hole 232e serves as a movement path of the moving protrusion. The second fixing hole 232e is located inside the fixing plate 232 and has a closed shape.

[0132] Next, the moving hole 234a is provided at one edge of the moving plate 234 adjacent to the rotating arm 228, i.e., the edge adjacent to the shaft 226, and one side of the moving hole 234a is open. The moving hole 234a is disposed above the first fixing hole 232a to correspond to the rotating arm 228 of the foldable display device 100. Figure 8 Figure 8 When the rotating arm 228 of the foldable display device 100 moves, Figure 8 Figure 8 The rotating arm 228 of the foldable display device 100 is disposed in the first fixing hole 232a and the moving hole 234a and applies a force to one side of the moving hole while rotating in the first fixing hole 232a, so that the moving plate 234 moves. Advantageously, the horizontal length of the moving hole 234a is smaller than the horizontal length of the first fixing hole 232a.​​​

[0133] The first protrusion hole 234b and the second protrusion hole 234d are arranged to be spaced apart from each other vertically and horizontally between the adjacent moving holes 234a. The connection hole 234c and the second connection portion 234e are arranged to be spaced apart from each other horizontally between the first protrusion hole 234b and the second protrusion hole 234d.

[0134] The first protrusion hole 234b is provided at one edge of the moving plate 234 adjacent to the shaft 226 of the hinge 222, and one side of the first protrusion hole 234b is open. The first protrusion hole 234b serves as a moving path of the first fixing protrusion 232b of the fixing plate 232. Figure 8 The connection hole 234c exposes the first connection portion 232c of the fixing plate 232. One side of the connection hole 234c can be open.

[0135] The second protrusion hole 234d serves as a moving path of the second fixing protrusion of the fixing plate 232. The second protrusion hole 234d is located inside the moving plate 234 and has a closed shape.

[0136] The second connection portion 234e is connected to the other end portion of the restoring unit 238. Preferably, the second connection portion 234e is spaced apart from the shaft 226 of the hinge 222 horizontally away from the other edge of the moving plate 234.

[0137] Figure 8 Meanwhile, the magnetic unit 236 is arranged on the moving plate 234 adjacent to the other edge of the moving plate 234. In order to fix the magnetic unit 236, the portion of the moving plate 234 provided with the magnetic unit 236 can be thicker than the other portions. However, the disclosure is not limited thereto. Alternatively, the portion of the moving plate 234 provided with the magnetic unit 236 can have the same thickness as the other portions.

[0138] The moving plate 234 moves horizontally on the fixing plate 232 by the rotation of the rotating arm 228, thereby changing the position of the magnetic unit 236. In addition, the rotating arm 228 changes the state of the foldable display apparatus 100 by the rotation, and the foldable display apparatus 100 in the folded state is stably fixed by the magnetic unit 236.

[0139] The moving plate 234 moves horizontally on the fixing plate 232 by the rotation of the rotating arm 228, thereby changing the position of the magnetic unit 236. In addition, the rotating arm 228 changes the state of the foldable display apparatus 100 by the rotation, and the foldable display apparatus 100 in the folded state is stably fixed by the magnetic unit 236. Figure 4 Figure 4 The moving plate 234 moves horizontally on the fixing plate 232 by the rotation of the rotating arm 228, thereby changing the position of the magnetic unit 236. In addition, the rotating arm 228 changes the state of the foldable display apparatus 100 by the rotation, and the foldable display apparatus 100 in the folded state is stably fixed by the magnetic unit 236.

[0140] The change between the unfolded state and the folded state of the foldable display apparatus 100 will be described with reference to FIGS. 6A and 6B. Figures 13 to 18 Figure 4 The change between the unfolded state and the folded state of the foldable display apparatus 100 will be described with reference to FIGS. 6A and 6B.

[0141] Figure 13 ​​​is a schematic top view of a foldable display apparatus and a holder in an unfolded state according to an embodiment of the disclosure, and Figure 14 is a schematic top view of a foldable display apparatus and a holder in a folded state according to an embodiment of the disclosure. Figure 15 is a view schematically illustrating a coupling relationship between a foldable display apparatus in an unfolded state and a rotating arm according to an embodiment of the disclosure, and Figure 16 is a view schematically illustrating a coupling relationship between a foldable display apparatus in a folded state and a rotating arm according to an embodiment of the disclosure. Figure 17 is a view schematically illustrating a positional relationship between a rotating arm, a moving plate, and a magnetic unit in an unfolded state according to an embodiment of the disclosure, and Figure 18 is a view schematically illustrating a positional relationship between a rotating arm, a moving plate, and a magnetic unit in a folded state according to an embodiment of the disclosure. Here, Figure 15 and Figure 16 correspond to a cross section with respect to a second arm portion of the rotating arm, and for convenience of explanation, the foldable display apparatus includes only a display panel and a second rear cover. In addition, it is described that Figure 13 and Figure 14 the right side of the foldable display apparatus and the holder shown in

[0142] As Figure 13 , Figure 15 and Figure 17 shown, in the unfolded state, the foldable display apparatus 100 displays an image, and the rotating arm 228 is coupled to the foldable display apparatus 100, the length of the rotating arm 228 is arranged to be parallel to the X direction, and the second portion 2282 faces the front plate 212. In this case, the second portion 2282 of the rotating arm 228 is coupled to the guide rail 170a of the second rear cover 170, and the second portion 2282 is arranged between the display panel 110 and the second rear cover 170.

[0143] In addition, the moving plate 234 is spaced apart from the rotating arm 228 and is arranged at the first edge side of the fixed plate 232. Accordingly, the magnetic unit 236 fixed to the moving plate 234 is also arranged at the first position.

[0144] Next, in order to move the foldable display apparatus 100, when the foldable display apparatus 100 in the unfolded state is changed to the folded state, the rotating force generated by the motor 222 of Figure 8 is transmitted to the shaft 226 through the gear 224 of Figure 8 , and Figure 8 the shaft 226 of Figure 14 is rotated in one direction. Accordingly, as Figure 14 ,Figure 16 and Figure 18 the rotating arm 228 fixed to the shaft 226 of the Figure 8 is also rotated. Here, Figure 8 the shaft 226 and the rotating arm 228 are rotated counterclockwise on the XY plane on the right side. At this time, the rotating arm 228 is rotated along the guide rail 170a, and thus the foldable display device 100 coupled to the rotating arm 228 is bent and folded.

[0145] In this case, the rotating rotating arm 228 is inserted into the moving hole 234a of the moving plate 234 to contact the moving plate 234 and apply a counterclockwise force to the moving plate 234. The moving plate 234 is moved from the first edge of the fixed plate 232 to the second edge by the force applied from the rotating arm 228. Thus, the magnetic unit 236 fixed to the moving plate 234 is also moved and placed at the second position.

[0146] Further, the length of the restoring unit 238 fixed to the fixed plate 232 and the moving plate 234 is increased due to the movement of the moving plate 234, so that the restoring unit 238 has an elastic force.

[0147] In this case, the distance between the metal plate 180 on the rear surface of the second rear cover 170 of the foldable display device 100 in the folded state and the magnetic unit 236 in the second position is reduced and becomes close, and Figure 4 the metal plate 180 of the Figure 4 is fixed to the magnetic unit 236 by the strong magnetic force between the metal plate 180 of the Figure 4 and the magnetic unit 236, so that the foldable display device 100 stably maintains the folded state.

[0148] Meanwhile, when the foldable display device 100 in the folded state is changed to the unfolded state, due to the rotational force generated by the motor 222 of the Figure 8 Figure 8 the shaft 226 and the rotating arm 228 are rotated clockwise on the XY plane on the right side. Thus, the foldable display device 100 coupled to the rotating arm 228 attempts to unfold by the repulsive force.

[0149] In addition, the counterclockwise force applied by the rotating arm 228 to the moving plate 234 is removed, and the moving plate 234 is moved from the second edge of the fixed plate 232 to the first edge by the elastic force of the restoring unit 238. Thus, the magnetic unit 236 fixed to the moving plate 234 is also moved and placed at the first position again. In this case, the distance between the metal plate 180 on the rear surface of the second rear cover 170 of the foldable display device 100 and the magnetic unit 236 in the first position is increased, and Figure 4 the metal plate 180 of the Figure 4 ​The magnetic force between the metal plate 180 and the magnetic unit 236 weakens. Accordingly, the foldable display apparatus 100 is easily unfolded.

[0150] As described above, by using the rotating arm 228, the fixing plate 232, the moving plate 234, and the magnetic unit 236, the foldable display apparatus 100 according to an embodiment of the disclosure can be easily unfolded and folded, and can stably maintain the folded state.

[0151] In the disclosure, by using the holding system, the foldable display apparatus having a relatively large size can be easily changed into the unfolded state and the folded state.

[0152] In addition, by using the magnetic unit whose position is changed, the foldable display apparatus in the folded state can be fixed, and the foldable display apparatus having a relatively large size can be stably maintained in the folded state.

[0153] Example embodiments of the disclosure can also be described as follows.

[0154] A foldable display kit according to an example embodiment of the disclosure can include a foldable display apparatus, a holding system on a rear surface of the foldable display apparatus, and the holding system configured to fold and unfold the foldable display apparatus. Here, the holding system can include a motor configured to generate a rotating force, a rotating arm configured to rotate by the rotating force of the motor to fold and unfold the foldable display apparatus, a fixing plate spaced apart from the rotating arm when the foldable display apparatus is in an unfolded state, a moving plate on the fixing plate and configured to move with respect to the fixing plate by the rotating arm, and a magnetic unit fixed on the moving plate. Also, the foldable display apparatus in the folded state can be fixed to the magnetic unit by a magnetic force.

[0155] In some example embodiments, the foldable display apparatus can include a metal plate on a rear surface of the foldable display apparatus, and the metal plate is fixed to the magnetic unit by a magnetic force when the foldable display apparatus is in a folded state.

[0156] In some example embodiments, the foldable display apparatus can include a guide rail on a rear surface of the foldable display apparatus, and the rotating arm can be coupled to the guide rail and configured to rotate along the guide rail to fold and unfold the foldable display apparatus.

[0157] In some example embodiments, the fixing plate can include a fixing hole and a fixing protrusion, and the moving plate can include a moving hole and a protrusion hole. The moving hole can be disposed above the fixing hole, and the fixing protrusion can be disposed in the protrusion hole.

[0158] In some example embodiments, each of the fixed hole and the moving hole can be open at one side, and the moving hole can have a smaller width than the fixed hole in a horizontal direction.

[0159] In some example embodiments, the rotating arm can be configured to be disposed in the fixed hole and the moving hole, and to rotate in the fixed hole to move the moving plate to move the foldable display device to the folded state.

[0160] In some example embodiments, the holding system can further include a shaft configured to be rotated by a rotational force of the motor, the rotating arm being connected to the shaft, and a gear for transmitting the rotational force of the motor to the shaft.

[0161] In some example embodiments, the holding system can further include a frame for accommodating at least the motor, and the fixed plate can be connected to the frame.

[0162] In some example embodiments, when the foldable display device is in the unfolded state, the moving plate and the magnetic unit can be at a first position with respect to the fixed plate. When the foldable display device is in the folded state, the moving plate and the magnetic unit can be at a second position with respect to the fixed plate, and the magnetic unit is fixed to the foldable display device.

[0163] In some example embodiments, the magnetic unit can not be fixed to the foldable display device in the unfolded state by a magnetic force.

[0164] In some example embodiments, the holding system can further include a restoring unit, one end of the restoring unit being connected to the fixed plate and the other end being connected to the moving plate. A length of the restoring unit when the moving plate and the magnetic unit are at the second position can be longer than a length of the restoring unit when the moving plate and the magnetic unit are at the first position.

[0165] In some example embodiments, the holding system can further include a front plate between the motor and the foldable display device, and the foldable display device can be fixed to the front plate.

[0166] In some example embodiments, the front plate of the holding system can be fixed to a central portion of the foldable display device in the unfolded state and in the folded state.

[0167] In some example embodiments, the rotating arm can be configured to be rotated by a rotational force of the motor to fold and unfold lateral sides of the foldable display device, and the magnetic unit can be fixed to the lateral sides of the foldable display device in the folded state by a magnetic force.

[0168] In further example embodiments according to the present disclosure, a holding system for a foldable display apparatus can include a frame, a motor housed in the frame and configured to generate a rotational force, a rotating arm configured to rotate by the rotational force of the motor, a fixed plate connected to the frame and spaced apart from the rotating arm, a moving plate on the fixed plate and configured to move relative to the fixed plate by the rotating arm, and a magnetic unit fixed on the moving plate, wherein the moving plate and the magnetic unit can be configured to move relative to the fixed plate between a first position and a second position by the rotating arm.

[0169] In some example embodiments, the holding system can further include a restoring unit having one end connected to the fixed plate and the other end connected to the moving plate, wherein a length of the restoring unit when the moving plate and the magnetic unit are at the second position is longer than a length of the restoring unit when the moving plate and the magnetic unit are at the first position.

[0170] In some example embodiments, the fixed plate can include a fixed hole and a fixed protrusion, and the moving plate can include a moving hole and a protrusion hole. The moving hole can be disposed above the fixed hole, and the fixed protrusion can be disposed in the protrusion hole.

[0171] In some example embodiments, each of the fixed hole and the moving hole can be open on one side, and the moving hole can have a smaller width than the fixed hole in a horizontal direction.

[0172] In some example embodiments, the rotating arm can be configured to be disposed in the fixed hole and the moving hole, and to rotate in the fixed hole to move the moving plate from the first position to the second position.

[0173] In some example embodiments, the holding system can further include a shaft configured to rotate by the rotational force of the motor, the rotating arm being connected to the shaft, and a gear for transmitting the rotational force of the motor to the shaft.

[0174] It will be apparent to those skilled in the art that various modifications and variations can be made in the display apparatus of the present disclosure without departing from the technical idea or scope of the present disclosure. Thus, it is intended that the present disclosure cover the modifications and variations of the present disclosure provided they come within the scope of the appended claims and their equivalents.

Claims

1. A foldable display kit, comprising: Foldable display device; as well as A retaining system on the rear surface of the foldable display device, and the retaining system being configured to fold and unfold the foldable display device. The holding system includes: An electric motor configured to generate rotational force; A rotating arm configured to rotate by the rotational force of the motor to fold and unfold the foldable display device; A fixing plate, which is spaced apart from the rotating arm when the foldable display device is in the unfolded state; A movable plate, the movable plate being on the fixed plate and configured to move relative to the fixed plate via the rotating arm; and Magnetic units fixed to the movable plate. In this configuration, the foldable display device, when folded, is magnetically fixed to the magnetic unit; and The movable plate is disposed between the fixed plate and the magnetic unit.

2. The foldable display kit according to claim 1, wherein, The foldable display device includes a metal plate on the rear surface of the foldable display device, and When the foldable display device is in the folded state, the metal plate is fixed to the magnetic unit by the magnetic force.

3. The foldable display kit according to claim 1, wherein, The foldable display device includes a guide rail on the rear surface of the foldable display device, and The rotating arm is coupled to the guide rail and configured to rotate along the guide rail to fold and unfold the foldable display device.

4. The foldable display kit according to claim 1, wherein, The fixing plate includes fixing holes and fixing protrusions. The movable plate includes a movable hole and a protruding hole, and The movable hole is arranged above the fixed hole, and the fixed protrusion is arranged in the protrusion hole.

5. The foldable display kit according to claim 4, wherein, Each of the fixed hole and the movable hole is open on one side, and the movable hole has a smaller width in the horizontal direction than the fixed hole.

6. The foldable display kit according to claim 5, wherein, The rotating arm is configured to be arranged in the fixed hole and the movable hole, and rotates in the fixed hole to move the movable plate thereby moving the foldable display device to the folded state.

7. The foldable display kit according to claim 1, wherein, The holding system also includes: A shaft configured to rotate by the rotational force of the motor, the rotating arm being connected to the shaft; and Gears used to transmit the rotational force of the motor to the shaft.

8. The foldable display kit according to claim 1, wherein, The retaining system also includes a frame for at least accommodating the motor, and The fixing plate is connected to the frame.

9. The foldable display kit according to claim 1, wherein; When the foldable display device is in the unfolded state, the movable plate and the magnetic unit are in a first position relative to the fixed plate, and When the foldable display device is in the folded state, the movable plate and the magnetic unit are in a second position relative to the fixed plate, and the magnetic unit is fixed to the foldable display device.

10. The foldable display kit according to claim 9, wherein, The magnetic unit is not fixed to the foldable display device in the unfolded state by the magnetic force.

11. The foldable display kit according to claim 9, wherein, The retaining system further includes a recovery unit, one end of which is connected to the fixed plate and the other end of which is connected to the movable plate. Wherein, when the moving plate and the magnetic unit are in the second position, the length of the recovery unit is longer than the length of the recovery unit when the moving plate and the magnetic unit are in the first position.

12. The foldable display kit according to claim 1, wherein, The holding system also includes a front panel between the motor and the foldable display device, and the foldable display device is fixed to the front panel.

13. The foldable display kit according to claim 12, wherein, The front panel of the retaining system is fixed to the center of the foldable display device in both the unfolded and folded states.

14. The foldable display kit according to claim 1, wherein, The rotating arm is configured to rotate by the rotational force of the motor to fold and unfold the lateral sides of the foldable display device, and The magnetic unit is fixed to the lateral side of the foldable display device in the folded state by the magnetic force.

15. The foldable display kit according to claim 1, wherein, The movable plate and the rotating arm are configured such that after the rotating arm rotates from a state of no contact with the movable plate to a state of contact with the movable plate, the rotating arm moves the movable plate by continuing to rotate.

16. A holding system for a foldable display device, comprising: frame; An electric motor housed within the frame and configured to generate rotational force; A rotating arm configured to rotate by the rotational force of the motor; A fixed plate connected to the frame and spaced apart from the rotating arm; A movable plate, the movable plate being on the fixed plate and configured to move relative to the fixed plate via the rotating arm; as well as Magnetic units fixed to the movable plate. The movable plate and the magnetic unit are configured to move relative to the fixed plate between a first position and a second position via the rotating arm; and The movable plate is disposed between the fixed plate and the magnetic unit.

17. The holding system of claim 16, further comprising: A recovery unit, one end of which is connected to the fixed plate and the other end of which is connected to the movable plate. Wherein, when the moving plate and the magnetic unit are in the second position, the length of the recovery unit is longer than the length of the recovery unit when the moving plate and the magnetic unit are in the first position.

18. The holding system according to claim 16, wherein, The fixing plate includes fixing holes and fixing protrusions. The movable plate includes a movable hole and a protruding hole, and The movable hole is arranged above the fixed hole, and the fixed protrusion is arranged in the protrusion hole.

19. The holding system according to claim 18, wherein, Each of the fixed hole and the movable hole is open on one side, and the movable hole has a smaller width in the horizontal direction than the fixed hole.

20. The holding system according to claim 19, wherein, The rotating arm is configured to be arranged in the fixed hole and the movable hole, and rotates in the fixed hole to move the movable plate thereby moving the foldable display device to a folded state.

21. The holding system according to claim 16, wherein, The holding system also includes: A shaft configured to rotate by the rotational force of the motor, the rotating arm being connected to the shaft; and Gears used to transmit the rotational force of the motor to the shaft.

22. The holding system according to claim 16, wherein, The movable plate and the rotating arm are configured such that after the rotating arm rotates from a state of no contact with the movable plate to a state of contact with the movable plate, the rotating arm moves the movable plate by continuing to rotate.

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