Display device

Abstract

A display device capable of suppressing breakage of a display panel and capable of suppressing bending of the display panel in a state where the display panel is pulled out. A display device (10) includes: a panel member (12) capable of being wound, having a display panel (28) and a magnetic member (32) attached to a back surface (46) of the display panel (28); and a magnet (24) located on a side opposite to the display panel (28) of the magnetic member (32) in a state where the panel member (12) is pulled out, attracting the magnetic member (32).

Description

TECHNICAL FIELD

[0001] The present application relates to a display device, and particularly to a display device including a display panel having flexibility. BACKGROUND

[0002] Conventionally, a display device including a display panel having flexibility is known. As an example of such a display device, a flexible display device including a display having flexibility is disclosed in Patent Literature 1.

[0003] PRIOR ART DOCUMENTS

[0004] Patent Literature 1: U.S. Patent No. 10001809 Specification

[0005] However, in the flexible display device of Patent Literature 1, in a case where a curl mark is generated in the display due to winding of the display or the like, there is a problem that the display panel is bent in a state where the display panel is pulled out. In order to suppress the bending of the display panel, it is considered to strongly pull the display in the pulling-out direction, but if the display is strongly pulled in the pulling-out direction, there is a problem that the display is easily broken. SUMMARY

[0006] In order to solve the above problem, an object of the present application is to provide a display device capable of suppressing breakage of a display panel and capable of suppressing bending of the display panel in a state where the display panel is pulled out.

[0007] A display device of one embodiment of the present application includes a panel member that can be wound, has a display panel and a magnetic member attached to the back of the display panel, and a magnet that is positioned on the side opposite to the display panel of the magnetic member in a state where the panel member is pulled out, and attracts the magnetic member.

[0008] According to the present application, a display device capable of suppressing breakage of a display panel and capable of suppressing bending of the display panel in a state where the display panel is pulled out can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a perspective view of a display device of Embodiment 1.

[0010] Figure 2 is a cross-sectional view of a display device of Figure 1 and a panel member.

[0011] Figure 3 is a cross-sectional view of a part of a panel member of a display device of Figure 1

[0012] Figure 4 is a view for explaining​Figure 1 A diagram illustrating an example of the operation of a display device.

[0013] Figure 5 This is a cross-sectional view of the display device according to Embodiment 2.

[0014] Explanation of reference numerals in the attached figures

[0015] 10, 10a Display device, 12 Panel component, 14 Driving substrate, 16 Flexible substrate, 18 Core component, 20 Scaling part, 22 Motor, 24, 26, 80 Magnets, 28 Display panel, 30, 38, 42 Optical adhesive sheet, 32 Magnetic component, 34 Protective component, 36 Cover window, 40 Circular polarizing plate, 44 OLED panel, 46 Back side, 47 Image display area, 48 Center, 49 Through hole, 50, 66, 74 Main body, 52 Through part, 54 First mounting component, 56 Second mounting component, 58 First arm component, 60 Second arm component, 62, 64, 70, 72 Linkage component, 68, 76 Protrusion, 78 Moving part. Detailed Implementation

[0016] Hereinafter, embodiments of the display device of the present invention will be described with reference to the accompanying drawings. Furthermore, the embodiments described below represent specific examples of the present invention. Therefore, the numerical values, constituent elements, arrangement positions of constituent elements, and connection methods shown in the following embodiments are examples and are not intended to limit the present invention. Consequently, constituent elements not described in the independent claims in the following embodiments will be described as arbitrary constituent elements.

[0017] In all figures, substantially identical components are labeled with the same reference numerals. Furthermore, each figure is a schematic diagram and does not necessarily represent the exact size ratios of the parts.

[0018] (Implementation Method 1)

[0019] Figure 1 This is a perspective view of the display device 10 according to Embodiment 1. Figure 1 (a) indicates the state where panel component 12 is pulled out. Figure 1 (b) indicates the state in which panel component 12 is wound up. Figure 2 It means Figure 1 A cross-section of the display device 10 and a diagram of the panel component 12. Figure 2 (a) represents a cross-section of the display device 10. Figure 2 (b) indicates panel component 12. Figure 2 (a) indicates Figure 1 The cross section of line IIa-IIa. Figure 3 It means Figure 1A cross-sectional view of a portion of the panel member 12 of the display device 10. In addition, in Figure 2 In (a), illustration of the optical adhesive sheet 30 and the plurality of through holes 49 and the like is omitted in order to avoid the drawing becoming complex. Figure 4 and Figure 5 The same also applies.

[0020] As Figures 1 to 3 illustrated, the display device 10 is a device that displays an image or the like, and includes a panel member 12, a drive substrate 14, a flexible substrate 16, a core member 18, a zoom portion 20, a motor 22, and a plurality of magnets 24, 26. The display device 10 is a rollable display device that can roll up the panel member 12 and can pull out the rolled-up panel member 12. The display device 10 is used, for example, for a tablet terminal, a digital television, a digital signage, a smartphone, or a wearable terminal, or the like.

[0021] The panel member 12 has flexibility so as to be able to be rolled up. The panel member 12 is a plate-shaped member that extends in a first direction and a second direction orthogonal to the first direction in a pulled-out state. The first direction is a direction indicated by an X axis in Figures 1 to 5 , and the second direction is a direction indicated by a Y axis in Figures 1 to 5 . The panel member 12 has a display panel 28, an optical adhesive sheet 30, a magnetic member 32, and a protective member 34.

[0022] The display panel 28 is a panel that displays an image or the like. The display panel 28 has flexibility. The display panel 28 is a so-called flexible display panel. The display panel 28 is a plate-shaped member that extends in the first direction and the second direction in a pulled-out state of the panel member 12. In the present embodiment, the display panel 28 is a rectangle with the first direction as a long side direction and the second direction as a short side direction in a pulled-out state of the panel member 12, and is a plate shape with a third direction orthogonal to the first direction and orthogonal to the second direction as a thickness direction, displays an image to one side (positive side of the Z axis direction) of the third direction. The third direction is a direction indicated by a Z axis in Figures 1 to 5 .

[0023] In addition, for example, the display panel 28 can be a rectangle with the first direction as a short side direction and the second direction as a long side direction in a pulled-out state of the panel member 12, can be a square, other polygon, a circle, or an ellipse, or the like.

[0024] The display panel 28 has a cover window 36, an optical adhesive sheet 38, a circularly polarizing plate 40, an optical adhesive sheet 42, and an OLED (Organic Light Emitting Diode) panel 44.

[0025] The cover window 36, the optical adhesive sheet 38, the circularly polarizing plate 40, the optical adhesive sheet 42, and the OLED panel 44 are stacked in this order in the thickness direction of the display panel 28. The thickness direction of the display panel 28 coincides with the thickness direction of the optical adhesive sheet 30, the thickness direction of the magnetic member 32, and the thickness direction of the protective member 34.

[0026] The cover window 36 is bonded to the circularly polarizing plate 40 by the optical adhesive sheet 38, and the circularly polarizing plate 40 is bonded to the OLED panel 44 by the optical adhesive sheet 42. For example, the OLED panel 44 is configured by stacking a TFT (Thin Film Transistor), an OLED having an organic EL element, and a TFE (Thin Film Encapsulation).

[0027] The optical adhesive sheet 30 is attached to the back surface 46 of the display panel 28 and stacked on the display panel 28. In the present embodiment, the optical adhesive sheet 30 is attached to the entire surface of the back surface 46 of the display panel 28. In the present embodiment, the back surface 46 is the back surface of the OLED panel 44. For example, an acrylic-based, silicon-based, epoxy-based, or rubber-based adhesive can be used as the optical adhesive sheet 30.

[0028] The magnetic member 32 is a ferromagnetic body that is attracted by a magnet. For example, the magnetic member 32 is formed of SUS430 of a ferrite system stainless steel or SUS304, SUS301, or the like of an austenite system stainless steel having a magnetic property in an elastic region that is large by cold rolling. The magnetic member 32 is attached to the back surface 46 of the display panel 28. In the present embodiment, the magnetic member 32 is bonded to the back surface 46 of the display panel 28 by the optical adhesive sheet 30, and thus is attached to the back surface 46 of the display panel 28 by the optical adhesive sheet 30.

[0029] The magnetic member 32 is a plate shape and is stacked on the display panel 28. The magnetic member 32 is a plate shape that extends in the first direction and the second direction in a state where the panel member 12 is pulled out. In the present embodiment, the magnetic member 32 is a long rectangle in which the first direction is a short side direction and the second direction is a long side direction in a state where the panel member 12 is pulled out, and is a plate shape in which the third direction is a thickness direction, and overlaps the image display region 47 of the display panel 28 when viewed from the third direction.

[0030] In addition, for example, the magnetic member 32 can be a long rectangle in which the first direction is a long side direction and the second direction is a short side direction in a state where the panel member 12 is pulled out, or can be a square, another polygon, a circle, an ellipse, or the like. The same applies to the protective member 34 and the like.

[0031] The magnetic member 32 is in a direction in which the panel member 12 is wound (see FIG. 1) in a state where the panel member 12 is pulled out. Figure 1 and Figure 2The magnetic member 32 protrudes further forward than the display panel 28 in the winding direction (refer to an arrow E2). The winding direction is a direction in which the panel member 12 moves when the panel member 12 is wound around the core member 18. The front end portion of the magnetic member 32 in the winding direction is fixed to the outer peripheral surface of the core member 18, and the magnetic member 32 links the display panel 28 and the core member 18. That is, the display panel 28 and the core member 18 are connected to each other in a manner not to be separated via the magnetic member 32.

[0032] The magnetic member 32 protrudes further forward than the display panel 28 in the unwinding direction (refer to an arrow E1). The unwinding direction is a direction in which the panel member 12 moves when the panel member 12 is unwound from the core member 18, and is a direction opposite to the winding direction. The front end portion of the magnetic member 32 in the unwinding direction is fixed to the first mounting member 54 of the zoom portion 20. Figure 1 and Figure 2 The magnetic member 32 protrudes further forward than the display panel 28 in the winding direction (refer to an arrow E2). The winding direction is a direction in which the panel member 12 moves when the panel member 12 is wound around the core member 18. The front end portion of the magnetic member 32 in the winding direction is fixed to the outer peripheral surface of the core member 18, and the magnetic member 32 links the display panel 28 and the core member 18. That is, the display panel 28 and the core member 18 are connected to each other in a manner not to be separated via the magnetic member 32.

[0033] The magnetic member 32 is attached to the back surface 46 on the side closer to the front than the center 48 of the display panel 28 in the winding direction. That is, in a state in which the panel member 12 is unwound, the magnetic member 32 overlaps with a portion of the display panel 28 on the side closer to the front than the center 48 in the winding direction when viewed from the third direction. In the present embodiment, the magnetic member 32 is also attached to the back surface 46 on the side closer to the rear than the center 48 of the display panel 28 in the winding direction.

[0034] In addition, for example, the magnetic member 32 can be attached to the back surface 46 only on the side closer to the front than the center 48 of the display panel 28 in the winding direction, or can be attached to the back surface 46 only on the side closer to the rear than the center 48 of the display panel 28 in the winding direction.

[0035] The magnetic member 32 is higher in rigidity than the display panel 28, and is a reinforcing member for assisting flatness of the display panel 28 in a state in which the panel member 12 is unwound. In addition, for example, the magnetic member 32 can be lower in rigidity than the display panel 28.

[0036] A plurality of through holes 49 is formed in the magnetic member 32. The plurality of through holes 49 is arranged in a staggered manner. In a state in which the panel member 12 is unwound, a plurality of the plurality of through holes 49 overlaps with the image display region 47 when viewed from the third direction. The plurality of through holes 49 respectively penetrates the magnetic member 32 in a thickness direction of the magnetic member 32, and is a long circular shape. For example, the plurality of through holes 49 is formed by wet etching or the like.

[0037] In addition, for example, the plurality of through holes 49 can not be formed in the magnetic member 32, or a plurality of recesses can be formed instead of the plurality of through holes 49.

[0038] The protection member 34 is a back cover for suppressing breakage of the front surface of the panel member 12 and the like when the panel member 12 is rolled up. The protection member 34 is formed of, for example, polyurethane, silicon, nylon 66, aramid, or the like.

[0039] The protection member 34 is attached to the back of the magnetic member 32. In the present embodiment, the protection member 34 has adhesiveness and is attached to the back of the magnetic member 32 by being adhered to the back of the magnetic member 32. Alternatively, the protection member 34 can be adhered to the magnetic member 32 by an adhesive or the like without having adhesiveness.

[0040] The protection member 34 is plate-shaped and is laminated to the magnetic member 32. The protection member 34 is plate-shaped and extends in the first direction and the second direction in a state where the panel member 12 is pulled out. In the present embodiment, the protection member 34 is a rectangular shape in which the first direction is a short side direction and the second direction is a long side direction in a state where the panel member 12 is pulled out, and is plate-shaped in which the third direction is a thickness direction, and overlaps the image display region 47 when viewed from the third direction.

[0041] The drive substrate 14 is a substrate for driving the display panel 28 and is electrically connected to the display panel 28 via the flexible substrate 16. The drive substrate 14 has a circuit for driving the display panel 28. The drive substrate 14 is disposed in front of the display panel 28 in the rolling direction and is fixed to the main body 50 inside the main body 50 of the core member 18. The drive substrate 14 is, for example, a PCB (Printed Circuit Board).

[0042] The flexible substrate 16 is a substrate for electrically connecting the display panel 28 and the drive substrate 14 and has flexibility. The flexible substrate 16 is connected to the display panel 28 and the drive substrate 14 and links the display panel 28 and the drive substrate 14. That is, the display panel 28 and the drive substrate 14 are connected to each other in a manner not to be separated via the flexible substrate 16.

[0043] The flexible substrate 16 is connected to the front end portion of the OLED panel 44 in the rolling direction and protrudes further forward in the rolling direction than the OLED panel 44. The front end portion of the flexible substrate 16 in the rolling direction is connected to the drive substrate 14. Alternatively, the flexible substrate 16 can not be directly connected to the display panel 28 and the drive substrate 14 but can be indirectly connected to the display panel 28 and the drive substrate 14 via other members or the like. The flexible substrate 16 is, for example, a COF (Chip On Film).

[0044] The core member 18 is a roller for fixing the drive substrate 14 and the panel member 12 and rolling up the panel member 12. Specifically, the core member 18 is a member that is rolled up by the panel member 12 when the panel member 12 is rolled up. The core member 18 has a main body 50 and a through portion 52.

[0045] The main body 50 is substantially cylindrical with the first direction as the axial direction, and the front end portion of the panel member 12 in the winding direction is fixed to the outer peripheral surface of the main body 50. In the present embodiment, the front end portion of the magnetic member 32 in the winding direction is fixed to the outer peripheral surface of the main body 50. The through portion 52 penetrates the main body 50 in the radial direction of the main body 50 and extends in the axial direction of the main body 50. The flexible substrate 16 passes through the through portion 52.

[0046] The zoom portion 20 has a first mounting member 54, a second mounting member 56, a first arm member 58, and a second arm member 60.

[0047] The first mounting member 54 is mounted to the front end portion of the panel member 12 in the pull-out direction. In the present embodiment, the first mounting member 54 is mounted to the front end portion of the panel member 12 in the pull-out direction by sandwiching the front end portion of the magnetic member 32 in the pull-out direction and the front end portion of the protection member 34. The first mounting member 54 extends in the first direction along the front end portion of the panel member 12 in the pull-out direction.

[0048] The second mounting member 56 extends in the first direction opposite to the first mounting member 54 in the second direction. The second mounting member 56 is fixed to a member (not shown) that supports the core member 18 so as to be rotatable.

[0049] The first arm member 58 is provided on the back surface 46 side of the display panel 28 and is stretchable in the second direction. The first arm member 58 has a plurality of link members 62, 64. The plurality of link members 62, 64 respectively rotate on the back surface 46 side of the display panel 28 to push the first mounting member 54 in the pull-out direction.

[0050] The link member 62 is elongated, and one end portion of the link member 62 is mounted to the first mounting member 54 so as to be rotatable about the third direction, and the other end portion of the link member 62 is mounted to the link member 64 so as to be rotatable about the third direction.

[0051] The link member 64 has a main body 66 and a protruding portion 68. The main body 66 is elongated, and one end portion of the main body 66 is mounted to the link member 62 so as to be rotatable about the third direction, and the other end portion of the main body 66 is mounted to the second mounting member 56 so as to be rotatable about the third direction. The protruding portion 68 protrudes from the main body 66 to the first direction side (positive side of the X-axis direction).

[0052] For example, when viewed from the other side of the third direction (negative side of the Z-axis direction), the link member 64 is urged in a direction of rotating clockwise. In conjunction with the rotation of the link member 64, the link member 62 rotates in a direction opposite to the link member 64, and the first arm member 58 is stretched in the pull-out direction.

[0053] The second arm member 60 is provided on the back surface 46 side of the display panel 28 and is extended and contracted in the second direction. The second arm member 60 is provided on one side of the first arm member 58 in the first direction and is symmetrically provided with the first arm member 58. The second arm member 60 has a plurality of link members 70, 72. The plurality of link members 70, 72 are respectively rotated on the back surface 46 side of the display panel 28 and push the first mounting member 54 in the pull-out direction.

[0054] The link member 70 is long and one end portion thereof is attached to the first mounting member 54 so as to be rotatable in the third direction, and the other end portion thereof is attached to the link member 72 so as to be rotatable in the third direction.

[0055] The link member 72 has a main body 74 and a protruding portion 76. The main body 74 is long and one end portion thereof is attached to the link member 70 so as to be rotatable in the third direction, and the other end portion thereof is attached to the second mounting member 56 so as to be rotatable in the third direction. The protruding portion 76 protrudes from the main body 74 to the other side (negative side in the X-axis direction) in the first direction.

[0056] For example, when viewed from the other side in the third direction, the link member 72 is applied with a force in a direction of counterclockwise rotation. In conjunction with the rotation of the link member 72, the link member 70 is rotated in a direction opposite to the link member 72, and the second arm member 60 is elongated in the pull-out direction.

[0057] By the elongation of the first arm member 58 and the second arm member 60, respectively, the first mounting member 54 and the second mounting member 56 are moved in directions away from each other, and the panel member 12 being wound is pulled out.

[0058] The motor 22 rotates the core member 18. By rotating the motor 22 in one direction, the core member 18 is rotated in one direction about the axis O, the first arm member 58 and the second arm member 60 are elongated in the second direction, the first mounting member 54 is moved in a direction away from the second mounting member 56, and the panel member 12 is pulled out from the core member 18. By rotating the motor 22 in the other direction, the core member 18 is rotated in the other direction about the axis O, the first arm member 58 and the second arm member 60 are contracted in the second direction, the first mounting member 54 is moved in a direction approaching the second mounting member 56, and the panel member 12 is wound.

[0059] In a state where the panel member 12 is pulled out, the plurality of magnets 24, 26 are respectively located on the side of the magnetic member 32 opposite to the display panel 28 and attract the magnetic member 32. That is, in a state where the panel member 12 is pulled out, the plurality of magnets 24, 26 respectively overlap the magnetic member 32 when viewed in the third direction.

[0060] In this embodiment, when the panel member 12 is pulled out, the plurality of magnets 24 and 26 are respectively located on the side of the magnetic member 32 opposite to the display panel 28, in the winding direction, where the portion attached to the back surface 46 is closer to the center 48 of the display panel 28. That is, when the panel member 12 is pulled out, and viewed from a third-party direction, the plurality of magnets 24 and 26 overlap with the portion of the magnetic member 32 attached to the back surface 46 in the winding direction, which is closer to the center 48 of the display panel 28.

[0061] Magnet 24 is mounted on the protrusion 68 of the connecting rod member 64 of the first arm member 58. Magnet 24 moves as the connecting rod member 64 rotates. In this embodiment, magnet 24 is an electromagnet. Alternatively, magnet 24 may be mounted on the body 66 of the connecting rod member 64 or on the connecting rod member 62.

[0062] Magnet 26 is mounted on the protrusion 76 of the connecting rod member 72 of the second arm member 60. Magnet 26 moves as the connecting rod member 72 rotates. In this embodiment, magnet 26 is an electromagnet. Alternatively, magnet 26 may be mounted on the body 74 of the connecting rod member 72 or on the connecting rod member 70.

[0063] As described later, magnets 24 and 26 are fixed in a position not to move in the Z direction so as to be able to correct, for example, curling marks protruding in the Z direction, of the panel member 12 and make it flat. That is, the link member 64 and link member 72 on which magnets 24 and 26 are mounted, and the member on which they are rotatably supported to the second mounting member 56, have sufficient rigidity to correct the curling marks of the panel member 12.

[0064] Figure 4 It is used for explanation Figure 1 A diagram illustrating an example of the operation of the display device 10. Figure 4 (a) indicates the state in which multiple magnets 24 and 26 are not attracted to magnetic component 32. Figure 4 (b) indicates the state in which multiple magnets 24 and 26 attract magnetic component 32.

[0065] like Figure 4 As shown in (a), for example, if curling marks are generated in the panel member 12 due to the winding of the panel member 12, the panel member 12 may bend when it is pulled out. For example, the magnetic member 32 is attached to the back side 46 of the part of the display panel 28 that is prone to curling marks and bending.

[0066] For example, in a state where the panel member 12 is pulled out, a current flows through the magnet 24 to magnetize the magnet 24, and a current flows through the magnet 26 to magnetize the magnet 26. For example, a control circuit (not shown) detects that the panel member 12 is pulled out, and in a case where the panel member 12 is pulled out, causes a current to flow through the magnet 24 to magnetize the magnet 24, and causes a current to flow through the magnet 26 to magnetize the magnet 26.

[0067] Thus, as shown in (b) of FIG. 1, the magnetic member 32 is attracted by the magnet 24 and the magnet 26, the portion of the panel member 12 that is curved in the forward direction is pulled to the magnet 24 side (the magnet 26 side), and it is possible to make the panel member 12 substantially flat. In addition, for example, when the panel member 12 is wound, the magnet 24 and the magnet 26 are not magnetized. Figure 4

[0068] The display device 10 of Embodiment 1 includes: a panel member 12 that can be wound, has a display panel 28 and a magnetic member 32 attached to a back surface 46 of the display panel 28; and a magnet 24 that, in a state where the panel member 12 is pulled out, is located on a side opposite the display panel 28 of the magnetic member 32, and attracts the magnetic member 32.

[0069] The display device 10 of Embodiment 1 includes: a panel member 12 that can be wound, has a display panel 28 and a magnetic member 32 attached to a back surface 46 of the display panel 28; and a magnet 24 that, in a state where the panel member 12 is pulled out, is located on a side opposite the display panel 28 of the magnetic member 32, and attracts the magnetic member 32.

[0070] Thus, in a case where the display panel 28 is curved in the forward direction, by attracting the magnetic member 32 attached to the back surface 46 of the display panel 28 with the magnet 24, it is possible to pull the display panel 28 to the back surface 46 side without pulling the display panel 28 in the direction in which it is pulled out. Therefore, it is possible to suppress breakage of the display panel 28, and it is possible to suppress the display panel 28 from being curved in a state where the display panel 28 is pulled out.

[0071] Further, in the display device 10 of Embodiment 1, the magnet 24 is an electromagnet.

[0072] Thus, in a state where the panel member 12 is pulled out, magnetizing the magnet 24 makes it possible to suppress breakage of the display panel 28, and it is possible to suppress the display panel 28 from being curved. Further, by not magnetizing the magnet 24 when winding the panel member 12, it is possible to suppress the magnetic member 32 from being attracted by the magnet 24 and making it difficult to wind the panel member 12.

[0073] Further, in the display device 10 of Embodiment 1, the magnetic member 32 is plate-shaped, is laminated to the display panel 28, and has a rigidity higher than that of the display panel 28.

[0074] ​Thus, since the magnetic member 32 is plate-shaped and laminated to the display panel 28, the magnetic member 32 is easily attracted, and the display panel 28 can be easily restrained from being bent. Further, since the rigidity of the magnetic member 32 is higher than that of the display panel 28, the display panel 28 can be further restrained from being bent by the magnetic member 32.

[0075] Further, in the display device 10 of Embodiment 1, the magnetic member 32 is attached to the back surface 46 on the front side of the central portion 48 of the display panel 28 in the winding direction of the panel member 12, and the magnet 24 is located on the side opposite to the display panel 28 of the portion of the magnetic member 32 attached to the back surface 46 on the front side in the state where the panel member 12 is pulled out.

[0076] Thus, the magnet 24 can be arranged on the side of the back surface 46 of the portion of the display panel 28 where a bending mark is easily generated and the display panel 28 is easily bent to attract the magnetic member 32, and thus the display panel 28 can be further restrained from being bent in the state where the display panel 28 is pulled out.

[0077] Further, the display device 10 of Embodiment 1 further includes a first mounting member 54 mounted to the front end portion of the panel member 12 in the pulling-out direction where the panel member 12 is pulled out, and a link member 64 turned on the side of the back surface 46 of the panel member 12 to push the first mounting member 54 in the pulling-out direction, and the magnet 24 is mounted to the link member 64.

[0078] Thus, the magnet 24 can be easily located on the side opposite to the display panel 28 of the magnetic member 32 when the panel member 12 is pulled out, and thus the display panel 28 can be easily restrained from being bent.

[0079] (Embodiment 2)

[0080] Figure 5 is a sectional view showing the display device 10a of Embodiment 2. Figure 5 (a) of shows the state where the panel member 12 is pulled out, Figure 5 (b) of shows the state where the magnet 80 moves to the side of the magnetic member 32, Figure 5 (c) of shows the state where the magnet 80 moves to the side opposite to the magnetic member 32.

[0081] As shown in Figure 5 , the display device 10a mainly differs from the display device 10 in that it further includes a moving portion 78.

[0082] With the panel member 12 pulled out, the moving part 78 moves the magnet 80 toward the magnetic member 32, and then moves the magnet 80, which has moved to the magnetic member 32, toward the side opposite to the magnetic member 32. In this embodiment, the moving part 78 is mounted on the protrusion 68 of the link member 64. The magnet 80 is mounted on the link member 64 via the moving part 78. For example, the moving part 78 is an actuator made using a piezoelectric element or the like, which increases its thickness in a third direction by being supplied with electricity, thereby moving the magnet 80 toward the magnetic member 32.

[0083] In addition, although the illustration is omitted, a moving part 78 and a magnet 80 are similarly provided on the connecting rod member 72, for example.

[0084] For example, such as Figure 5 As shown in (b), when the panel member 12 is pulled out, the moving part 78 is driven, and the magnet 80 moves toward the magnetic member 32. Furthermore, when the magnet 80 moves to the magnetic member 32, current flows through the magnet 80, causing the magnet 80 to be magnetized.

[0085] like Figure 5 As shown in (c), with the magnet 80 magnetized, the moving part 78 is driven, and the magnet 80 moves to the side opposite to the magnetic member 32. As a result, the forward-curving portion of the panel member 12 is pulled backward, making the panel member 12 generally flat.

[0086] The display device 10a has been described above.

[0087] The display device 10a of Embodiment 2 further includes a moving part 78, which moves the magnet 80 toward the magnetic member 32 side when the panel member 12 is pulled out, and moves the magnet 80 that has moved to the magnetic member 32 side toward the side opposite to the magnetic member 32.

[0088] Therefore, by moving magnet 80 toward magnetic member 32, magnet 80 can be brought close to magnetic member 32, thus making it easy for magnetic member 32 to be attracted by magnet 80. Furthermore, by moving magnet 80, which has been moved to the side opposite to magnetic member 32, magnetic member 32, attracted by magnet 80, can be pulled backward together with magnet 80. This prevents damage to display panel 28 and easily prevents bending of display panel 28 while it is being pulled out.

[0089] (Other implementation methods, etc.)

[0090] The display device of the present application has been described above based on the embodiments, but the present application is not limited to the above-described embodiments. Variations obtained by applying various modifications that can be thought of by those skilled in the art to the above-described embodiments, various devices in which the display panel of the present application is built in, and the like are also included in the present application without departing from the spirit of the present application.

[0091] In the above-described embodiments, a case where the display device 10 includes a plurality of magnets 24, 26 has been described, but is not limited thereto. For example, the display device can include one magnet without including a plurality of magnets, or can include three or more magnets.

[0092] In the above-described embodiments, a case where the plurality of magnets 24, 26 are electromagnets has been described, but is not limited thereto. For example, the magnets can be permanent magnets.

[0093] In the above-described embodiments, a case where the magnetic member 32 is plate-shaped has been described, but is not limited thereto. For example, the magnetic member can be rod-shaped or the like that extends in a direction orthogonal to the winding direction (first direction).

[0094] In the above-described embodiments, a case where, in a state where the panel member 12 is pulled out, the plurality of magnets 24, 26 are respectively located on the side opposite to the display panel 28 of the portion of the magnetic member 32 to which the back surface 46 is attached on the front side of the central portion 48 of the display panel 28 in the winding direction has been described, but is not limited thereto. For example, in a state where the panel member is pulled out, the magnets can be located on the side opposite to the display panel of the portion of the magnetic member to which the back surface is attached on the rear side of the central portion of the display panel in the winding direction.

[0095] In the above-described embodiments, a case where the magnet 24 is installed to the link member 64 and the magnet 26 is installed to the link member 72 has been described, but is not limited thereto. For example, the display device can have a housing that covers the back surface side of the panel member, and the magnets can be installed to an inner surface or the like of the housing.

[0096] In the above-described embodiments, a case where the zoom portion 20 has the first arm member 58 and the second arm member 60 has been described, but is not limited thereto. For example, the zoom portion can have one arm member without having a plurality of arm members.

[0097] In the above-described embodiments, a case where the first arm member 58 has a plurality of link members 62, 64 and the second arm member 60 has a plurality of link members 70, 72 has been described, but is not limited thereto. For example, the arm member can have one link member without having a plurality of link members.

[0098] Industrial Applicability

[0099] The display device of the present application can be applied to digital television, digital signage, a smart phone, a tablet terminal, a wearable terminal, or the like.

Claims

1. A display device, characterized in that... include: A panel component, which can be rolled up, has a display panel and a magnetic component attached to the back of the display panel; The magnet, specifically an electromagnet, is located on the side of the magnetic component opposite to the display panel when the panel component is pulled out, attracting the magnetic component. Mounting member, mounted on the front end of the panel member in the pull-out direction of the panel member; as well as The connecting rod component rotates on the rear side, pushing the mounting component out in the pull-out direction. The connecting rod component includes a long strip-shaped main body and a protrusion extending from the main body toward a positive or negative side in a first direction. The magnet is mounted on the protrusion of the connecting rod member. The display device also includes a movable part. The movable part, when the panel member is pulled out, moves the magnet toward the magnetic member side. When the magnet is moved to the magnetic member side, current flows through the magnet, magnetizing it. And when the magnet is magnetized, the magnet, having moved to the magnetic member side, moves to the side opposite to the magnetic member. The magnet is mounted on the protrusion via the movable part.

2. The display device according to claim 1, characterized in that, The magnetic component is plate-shaped and stacked on the display panel, and has higher rigidity than the display panel.

3. The display device according to claim 1, characterized in that, The magnetic component is attached to the back side of the display panel at a forward position relative to the center of the panel component in the winding direction of the panel component. With the panel component extended, the magnet is located on the side opposite to the display panel, on the portion of the magnetic component that is attached to the back side on the front side.

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