KR20140130827A - Display apparatus and variable member used for the same - Google Patents

Abstract

The present invention relates to a display device and a variable member used in the same. The display device according to the embodiment of the present invention includes a display module and the variable member which includes a first part to change the shape of the display module. The first part includes a plurality of sections. The variable member includes a fixing unit. The sections include a first section and a second section.

Description

DISPLAY APPARATUS AND VARIABLE MEMBER USED FOR THE SAME [0002]

The present invention relates to a display device and a variable member used therefor, and more particularly, to a display device having an improved structure and a variable member used therein.

Various types of display devices for realizing images are used. For example, there are various displays such as a liquid crystal display panel, a plasma display panel, and an organic light emitting diode display panel.

2. Description of the Related Art [0002] As the field of use of display devices is gradually expanded, various characteristics are required in various fields of use, and there is an increasing demand for not only characteristics related to displaying images, but also three- In order to satisfy such various demands, studies for improving the structure of the display device in various forms are continuing.

DISCLOSURE OF THE INVENTION The present invention is intended to provide a display device improved in structure to improve viewing and a variable member used therein.

The display device according to the present embodiment includes a display module; And a deformable member including a first portion that changes the shape of the display module, wherein the first portion includes a plurality of sections.

A variable member according to an embodiment of the present invention is a variable member in which a display module changes a shape of a module and includes a first portion fixed to the display module and both end portions fixed to both end portions of the first portion And a second portion, wherein the first portion comprises a plurality of sections.

The display device according to the present embodiment can change the shape of the display module so as to improve the satisfaction of the viewer.

At this time, the first portion of the deformable member is provided with a plurality of sections rotatably fixed to the fixed portion, so that the shape of the first deformable member can be changed by a small force to change the shape of the display module. At this time, the distance between the first portion and the second portion constituting the variable member, the distance between the first portion and the display module, and the distance between the second portion and the display module are made different at a specific position. Thus, the first part is easily deformed by the small force, so that the deformation of the deformable module can be more effectively performed.

1 is a front perspective view of a display device according to an embodiment of the present invention.
2 is a rear exploded perspective view of a display device according to an embodiment of the present invention.
Fig. 3 is an enlarged perspective view of part A of Fig. 2. Fig.
4 is a cross-sectional view of the display device cut along the line IV-IV in Fig.
5 is a view for explaining a shape change of a display device according to an embodiment of the present invention.
6 is a perspective view showing a part of a display device according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it is needless to say that the present invention is not limited to these embodiments and can be modified into various forms.

In the drawings, the same reference numerals are used for the same or similar parts throughout the specification. In the drawings, the thickness, the width, and the like are enlarged or reduced in order to make the description more clear, and the thickness, width, etc. of the present invention are not limited to those shown in the drawings.

Wherever certain parts of the specification are referred to as "comprising ", the description does not exclude other parts and may include other parts, unless specifically stated otherwise. Also, when a portion of a layer, film, region, plate, or the like is referred to as being "on" another portion, it also includes the case where another portion is located in the middle as well as the other portion. When a portion of a layer, film, region, plate, or the like is referred to as being "directly on" another portion, it means that no other portion is located in the middle.

Hereinafter, a display device according to an embodiment of the present invention and a variable member used therein will be described in detail with reference to the drawings.

FIG. 1 is a front perspective view of a display device according to an embodiment of the present invention, and FIG. 2 is a rear exploded perspective view of a display device according to an embodiment of the present invention. 3 is an enlarged perspective view of the portion A in Fig. 2, and Fig. 4 is a cross-sectional view of the display device cut along the line IV-IV in Fig.

Referring to the drawings, a display device 100 according to the present embodiment includes a display module 10 in which an image is implemented, and a deformable member 20 that changes the shape of the display module 10. And a rear cover 30 covering the rear surface of the display module 10. This will be explained in more detail.

The display device 100 collectively refers to various devices that represent data, images, and the like as images, and may include various kinds of devices such as a television, a computer monitor, a mobile phone, an e-book, and the like.

The display module 10 includes a display panel 12 that substantially implements an image, a support member 14 that is positioned on the rear surface of the display panel 12 and supports the display panel 12, And a panel driver (not shown) that is fixed to the display panel 12 and provides a signal for driving the display panel 12. Although not shown separately in the drawing, the display panel 12 and the frame portion surrounding the edges of the support member 14 may be further positioned.

In the present embodiment, the display panel 12 is a panel having various structures and systems capable of implementing an image, and having a flexible characteristic, the shape of which can be changed by the deformable member 20.

For example, the display panel 12 may be an organic light emitting display panel using an organic light emitting diode (OLED). The organic light emitting display panel is a self-luminous display panel that uses a principle that a current is generated in a fluorescent or phosphorescent organic thin film to combine electrons and holes in the organic thin film to generate light. The organic light emitting display panel has various advantages such as a bright and clear image quality, no limitation by the viewing angle, and low power consumption. In particular, since the organic thin film can be produced by laminating it, the flexible property is excellent. However, the present invention is not limited thereto, and various display panels 12 having various structures and systems can be applied.

The support member 14 is disposed on the rear surface of the display panel 12 to support the display panel 12. A panel driving part and a deformable member 20 which are fixed to the supporting member 14 by driving the display panel 12 may be positioned on the rear surface of the supporting member 14. [ The supporting member 14 has a strength that can be supported and fixed to the display panel 12, the panel driving unit and the deformable member 20, and the shape can be changed when the shape of the display panel 12 is changed Elasticity, and the like. In addition, the support member 14 may have a thermal expansion coefficient similar to that of the display panel 12 in order to prevent thermal stress or the like from occurring.

For example, in this embodiment, the support member 14 may comprise a composite material such as reinforced plastic. Composite material is a material that artificially combines two or more kinds of materials to have excellent properties. For example, in this embodiment, the support member 14 may include reinforced plastics such as carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GFRP), and the like. Then, it is possible to have high strength, elasticity, and excellent abrasion resistance by a reinforcing material of various fiber form while having light and flexible characteristics by plastic. The support member 14 may be composed of a single composite material layer or may be formed by stacking a plurality of composite material layers for superior strength.

The support member 14 may be fixed to the rear surface of the display panel 12 using an adhesive (for example, a double-sided tape). However, the present invention is not limited thereto, and the display panel 12 and the supporting member 14 can be fixed by various other methods.

The panel driver fixed to the rear surface of the support member 14 includes a circuit board (not shown) including various wires, elements, and the like to provide a signal for driving the panel. Such a panel driving unit may be fixed to the supporting member 14 by a bracket (not shown) or the like. For example, when the bracket is fixed to the supporting member 14 only at the central portion to change the shape of the display panel 12 The required force can be minimized. However, the present invention is not limited thereto, and it is needless to say that a part or all of the panel driving unit is located outside the display module 10, and the like. The panel driving unit of the present embodiment may include wiring, devices, and the like for driving the deformable member 20. [

Further, a frame portion (not shown) for protecting the edges of the display panel 12 and the support member 14 may be further positioned. Such a frame portion protects the display panel and the support member 14 while allowing the back cover 30 to be fixed by a fixing member (not shown) or the like. The shape of the frame portion, the fixing structure of the frame portion and the rear cover 30, and the like can be applied in various structures and schemes, and therefore, detailed description thereof will be omitted.

On the rear surface of the display module 10 (more specifically, the support member 14), a deformable member 20 capable of changing the display panel 12 is positioned. In this embodiment, the deformable member 20 includes a first portion 22 fixed to the support member 14 of the display module 10, and a second portion 22 located between the support member 14 and the first portion 22, And a second portion 24 to which the end portion is fixed to both side ends of the first portion 22. At this time, the first portion 22 may be composed of a plurality of sections. And a guide member 28 for supporting the inner portion of the first portion 22 may be further included. In the present embodiment, the shape of the first portion 22 can be changed by changing the distance (hereinafter referred to as "connection length") between the both side ends of the second portion 24 fixed to the first portion 22, The shape of the display module 10 can be changed. The shape of the first and second portions 22 and 24 will be described in more detail.

In this embodiment, the deformable member 20 may be formed long along one direction (for example, the lateral direction of the display device 100). The second portion 24 is positioned between the display module 10 and the first portion 22. When the connecting length of the second portion 24 of the deformable member 20 is shortened, both end portions of the first portion 22 are protruded. Then, the display module 10 can be made so as to have a constant radius of curvature (reference symbol R in FIG. 5, the same applies hereinafter) in the left-right direction. When the shape of the display module 10 is changed, the distance from the user's eyes to the display panel 12 is very small even if there is no difference or difference in the central portion and the edge portion. Accordingly, the immersion feeling of the user can be improved. However, the present invention is not limited thereto. Therefore, the deformed shape of the deformable member 20 can be changed, and thus the deformed shape of the display module 10 can be changed.

Also, in the figure, it is exemplified that the deformable member 20 is located at the upper portion of the display module 10 and is located at the lower portion of the display module 10. The upper and lower edge portions of the display module 10 may not be easily deformed when the deformable member 20 is positioned at only one of the center portions. When the plurality of deformable members 20 are provided as described above, the shape of the display module 10 can be uniformly changed as a whole. However, the present invention is not limited to this, and only one variable member 20 may be provided to reduce the cost and simplify the structure. Or the case where the display module 10 is large-sized, or the like, may be provided. It goes without saying that various modifications are possible.

At this time, the second portion 24 may have a long shape (for example, a wire shape) along the lateral direction of the display module 10. The connection length of the second portion 24 can be varied by various energies (i.e., thermal energy, electrical energy, mechanical energy).

For example, if the second portion 24 is made of a material whose shape changes with temperature, the second portion 24 may be heated by changing the temperature of the second portion 24 by providing thermal or electrical energy, Can be changed. In this case, the second portion 24 may comprise a shape memory alloy. The shape memory alloy is an alloy that utilizes shape memory and super plasticity appearing in a metal that undergo austenite-martensitic transformation and has a different shape depending on the temperature. The second portion 24 is connected to an element or the like which drives the variable member 20 in the panel driving portion so that the temperature is adjusted, and thus the connection length can be changed. When the second portion 24 includes the shape memory alloy and the connection length is changed by the thermal energy or the electric energy, the structure is simple and easy to apply, and noise is not generated when the display module 10 is deformed.

As another example, the connection length of the second portion 24 together with the panel driving portion may be changed by mechanical energy provided to a separate driving portion (not shown, for example, a motor) for supplying mechanical energy. That is, a part of the second part 24 is fixed to the motor, and the connection length of the second part 24 changes due to the part of the second part 24 being wound or unwound by the rotation shaft of the motor by the rotation of the motor . In this case, the second portion 24 can be composed of a material that does not stretch or hardly stretch under various conditions and has a high yield strength. The elongation of the second portion 24 may be difficult to precisely deform the connection length and provide more mechanical energy. In one example, the second portion 24 may comprise a material such as a metal wire (e.g., stainless steel wire), an aramid fiber, a carbon steel wire, or the like. In addition, the second portion 24 may be composed of various materials. A driving unit such as a motor for providing mechanical energy can have various configurations that can change the shape of the deformable member 20. [ As described above, when the driving member of the motor or the like changes the shape of the deformable member 20 by using mechanical energy, the deformable member 20 can be easily deformed and the deformation degree and the deformation time of the deformable member 20 can be precisely controlled can do.

The second portion 24 may be 0.5 mm to 10 mm in diameter. If the diameter of the second portion 24 is less than 0.5 mm, the second portion 24 may be broken or deformed when receiving energy from the driving portion or the like. If the diameter of the second portion 24 exceeds 10 mm, the mechanical energy required to change the connection length of the second portion 24 increases, resulting in increased cost and complicated configuration. However, the present invention is not limited thereto, and the second portion 24 may have various diameters.

In addition, although only one second portion 24 is provided for each first portion 22 in the drawings, a plurality of second portions 24 may be provided.

The shape of the first portion 22 changes and the first portion 22 exerts a force on the display module 10 to move the display module 10 in the direction The shape also changes to correspond to this. Thus, the first portion 22 is a portion that changes the shape of the display module 10 by being deformed by the force of the second portion 24. [ Accordingly, the first portion 22 may include a material having a flexible characteristic and an excellent strength. Further, the material constituting the first portion 22 may be a light material so that the display device 100 can be light-weighted.

In one example, the first portion 22 may comprise a single or multiple layers comprising a composite material, for example, reinforced plastic (CFRP, GFRP, etc.). However, the present invention is not limited thereto, and it is needless to say that the first portion 22 may be formed of various materials. The first portion 22 may have a band shape having a predetermined width W and extending continuously. As a result, the force to the display module 10 can be more effectively provided. However, the present invention is not limited thereto, and it goes without saying that the first portion 22 may have various shapes.

At this time, the first portion 22 includes a plurality of sections 221 and 222 and is fixed to the display module 10 by a fixing portion (more specifically, a central fixing portion 26a). More specifically, the central portion of the first portion 22 is fixed to the central portion of the display module 10 (more specifically, the support member 14) by the central fixing portion 26a, Both ends are not fixed or movable. The shape of the first portion 22 can be changed more freely.

The first section 22 includes a first section 221 fixed to the central fixing section 26a and positioned on the other side of the central fixing section 26b and a second section 221 fixed to the central fixing section 26a, And a second section 222 fixed to the other side of the second section 222. [ For example, the first section 221 and the second section 222 may be spaced apart from each other with the central fixing part 26a therebetween. Thereby, the first section 221 and the second section 222 can easily change into a desired shape when necessary without interference from each other. At this time, the first section 221 and the second section 222 may be positioned symmetrically with respect to the center fixing section 26a. As a result, when the shape of the deformable member 20 is changed, the force can be uniformly distributed so that the problem of distortion and the like can be prevented.

Specifically, the first section 221 is fixed to one side of the center fixing portion 26a so as to be rotatable by the first hinging member 224. Here, the first hinge member 224 has two plate members rotatably coupled to each other, and one plate member is fixed to one side of the central fixing portion 26a by the first fastening member 224a And the other plate-like member is fixed to the first section 221 by the second fastening member 224b.

And the second section 222 is rotatably fixed to the other side of the center fixing portion 26b by the second hinging member 226. [ Here, the second hinge member 226 has two plate members that are rotatably coupled to each other, and one plate member is fixed to the other side of the center fixing portion 26a by the third fastening member 226a And the other plate member is fixed to the second section 222 by the second fastening member 226b.

The first and second sections 221 and 222 are connected to the central fixing section 26a and the first and second sections 221 and 222 using the first and second hinging members 224 and 226, 222 are firmly fixed on the central fixing portion 26a, the first and second sections 221, 222 are rotatable. For example, any one of the first and second hinging members 224 and 2226 may be made of aluminum, steel, or the like. However, the present invention is not limited thereto, and various structures, methods, materials, and the like can be applied to the first and second hinges 224 and 2226.

The first and second fastening members 224a, 224b, 226a, and 226b are fastened to each other using first and second hinging members 224 and 226 using fastening members such as bolts or screws. The center fixing portions 221 and 222 and the central fixing portion 26a can be easily and easily fastened. However, the present invention is not limited thereto, and various fastening members of different structures and methods can be applied to the first to fourth fastening members 224a, 224b, 226a, 226b.

The center fixing portion 26a includes a bracket 260a that separates the first portion 22 from the second portion 24 while separating the first portion 22 from the support member 14, And a fastening member 262a for fastening the first portion 22 and the support member 14. [

Here, the bracket 260a serves to increase the distance between the first portion 22 and the support member 14 at the center portion rather than the end portion. The first and second sections 221 and 222 are fixed to the rear of the central fixing part 26a so that the distance between the inside end of the first and second sections 221 and 222 and the supporting member 14 is sufficient . Whereby the first distance L1 between the center portion of the first portion 22 (more specifically, the inner (central) end of the first and second sections 221 and 222) and the central portion of the support member 14, May be greater than the distance L2 between the end of the first portion 22 (more specifically, the outer (outer) end of the first and second sections 221 and 222) and the end of the support member 14 have. For example, the first portion 22 may have a curved shape such that the central region of the first portion 22 has a rounded shape that protrudes more toward the rear of the display module 10. Thus, the display module 10 can be more easily deformed when the display module 10 is deformed to have a constant radius of curvature R as a result of the change in the connection length of the second portion 24.

And the second portion 24 is positioned between the bracket 260a and the support member 14 so that the bracket 260a is positioned between the first portion 22 and the second portion 24, (I.e., the first distance L1) between the first portion 24 and the second portion 24 has a relatively large value. As the area between the first portion 22 and the second portion 24 becomes wider, the shape change of the first portion 22 can be easily realized according to the change of the connection length of the second portion 24. Therefore, in the present embodiment, the first distance L1 between the first portion 22 and the second portion 24 is relatively large at the central portion, So that the shape of the first portion 24 can be more easily changed.

In one example, the height T1 of the bracket 260a (i.e., the first distance L1 between the first portion 22 and the second portion 24) may be between 10 mm and 50 mm. If the height T1 of the bracket 260a exceeds 50 mm, the thickness of the display device 100 may become thick and the structural stability of the first portion 22 may deteriorate. If the height T1 of the bracket 260a is less than 10 mm, a large energy may be required for deformation of the first portion 22. However, the present invention is not limited thereto, and the height T1 of the bracket 260a may vary depending on the size of the screen, the radius of curvature R of the screen, and the like.

The fastening member 262a may have various configurations and systems for fastening the first portion 22 and the support member 14 at the central portion. For example, the Pam nut 14a may be located on the support member 14, and the fastening member 262a may be fastened to the Pam nut 14a through the first portion 22 and / or the bracket 260a. Thereby, the first part 22 can be fixed to the supporting member 14 simply and easily. However, the present invention is not limited thereto, and various methods and structures can be used for the fixing structure of the supporting member 14 and the side surface portion 28b.

And is spaced apart from the side edge of the display module 10 by a predetermined distance D1 in the present embodiment. In one example, the distance D1 between the end of the first portion 22 and the side edge of the display module 10 may be between 1 mm and 30 mm. If the interval D1 exceeds 30 mm, it may be difficult for the first portion 22 to uniformly apply force to the edge of the display module 10. If the distance D1 is less than 1 mm, the first portion 22 may protrude to the outside of the display module 10 at the time of deformation of the first portion 22, . However, the present invention is not limited to this, and the interval D1 may vary depending on the screen size, the radius of curvature R of the screen, and the like.

The second portion 24 has its both ends fixed to both side ends of the first portion 22 and the connecting portion between both side ends of the second portion 24. At this time, both end portions of the second portion 24 can be fixed to both end portions of the first portion 22 by the end fixing portions 26b. That is, the end fixing portion 26b has a first end fixing portion 26a for fixing one end portion of the second portion 24 to one end portion of the first portion 22 (i.e., the outer end portion of the first section 221) And a second end fixing portion 262b for fixing the other end portion of the second portion 24 to the other end portion of the first portion 22 (i.e., the outer end portion of the second section 222) can do.

The end fixing portion 26b can fix the second portion 24 to the first portion 22 by various methods. For example, the end fixing portion 26b may have a smaller height than the bracket 260a of the central fixing portion 26a, and the second portion 24 may be embedded therein so as to penetrate a portion of the end fixing portion 26b have. Alternatively, a hole may be formed at the end of the first portion 22, an end of the second portion 24 may be passed through the hole, and then the hole may be filled with an adhesive or a sealing material, Can be fixed to the end of the first part (22). However, the present invention is not limited thereto and various other methods can be applied.

The distance between the end of the first portion 22 and the end of the second portion 24 has a second distance L2 that is smaller than the first distance L1 described above. Thereby effectively transferring the force to the first portion 22 by the second portion 24 to allow the first portion 22 to easily deform.

The distance between the end of the second portion 24 fixed to the end fixing portion 26b and the display module 10 (or the thickness of the end fixing portion 26b) may be separated by the third distance L3. This is to prevent the end of the second portion 24 from interfering with the display module 10. [ Particularly, when the shape of the display module 10 changes according to the change of the connection length of the second portion 24, the gap between the second portion 24 and the display module 10 becomes closer to each other. In one example, the third distance L3 may be between 1 mm and 10 mm. If the third distance exceeds 10 mm, the thickness of the display device 100 can be unnecessarily increased. If the third distance L3 is less than 1 mm, the end of the second portion 24 may interfere with the display module 10. [ However, it should be understood that the present invention is not limited thereto and various modifications are possible.

The second portion 24 and the display module 10 are fixed to the first portion 22 by fixing the second portion 24 to the portion located between the central fixing portion 26a and the end fixing portion 26b, An interference prevention fixing portion 26c for preventing the interference of the antenna can be located. The interference preventing and securing portion 26c includes a first interference preventing fixing portion 261 for fixing the second portion 24 to the first section 221 at a portion between the central fixing portion 26a and the first end fixing portion 261b And a second interference prevention fixing portion 262c for fixing the second portion 24 to the second section 222 at a portion between the central fixing portion 26a and the second end fixing portion 262b can do.

The distance between the first portion 22 and the second portion 24 can be gradually reduced by the interference preventing and fixing portion 26c from the central fixing portion 26a toward the interference preventing and fixing portion 26c. The distance between the second portion 24 and the display module 10 gradually increases from the central fixing portion 26a toward the first interference prevention fixing portion 261c while the first interference prevention fixing portion 261c To the end fixing portion 261b. The distance between the second portion 24 and the display module 10 gradually increases from the central fixing portion 26a to the second interference preventing fixing portion 262c while the second interference preventing fixing portion 262c to the end fixing portion 262b.

In this case, the section of the second section 24 which is located near the center of the second section 24 and which is directed toward the end of the second section 24 and is distanced from the rear surface of the display module 10 is referred to as a middle section S11 or S12, The sections that are located outside the sections S11 and S12 and toward the end of the second section 24 and approach the distance from the rear surface of the display module 10 may be referred to as outer sections S21 and S22.

At this time, the center sections S11 and S12 are divided into a first center section S11 between the center fixing section 26a and the first interference prevention fixing section 261c, a second center section S11 between the center fixing section 26a and the second interference prevention < And a second central section S12 between the first and second sections 262c and 262c. The first center section S11 and the second center section S12 may be symmetrical with respect to the center of the central fixing section 26a. This is to prevent the display module 10 from being twisted due to the uniform force acting on both sides thereof.

Likewise, the outer sections S21 and S22 include a first outer section S21 between the first interference preventive fixing section 261c and the first end fixing section 261b, a second interference prevention section 262c, And a second outer section S22 between the second end fixing portions 262b. The first outer section S21 and the second outer section S22 may have a structure symmetrical to each other with respect to a central portion where the central fixing section 26a is located. This is to prevent the problem that the display module 10 is twisted by acting uniformly on both sides.

As described above, the second portion 24 may have a shape similar to the "W" character, for example. This shape is intended to maximize the force applied to the first portion 22 and to prevent problems due to interference.

At this time, the length ratio of the first center section S1 (or the second center section S12) to the entire length L of the first section 22 may be 0.1 to 0.2. If the length ratio is less than 0.1, the magnitude of the force applied to the first portion 22 can be reduced. If the length ratio exceeds 0.2, the second portion 24 may interfere with the display module 10. However, the present invention is not limited thereto, and the ratios may vary.

Since the distance between the second portion 24 and the display module 10 gradually increases in the central sections S11 and S12 by the interference preventing and fixing portion 26c as described above, It is possible to prevent the display module 10 from interfering with deformation. In addition, it is possible to transmit a large force to the first portion 22 by optimizing the length ratio of the central sections S11 and S12.

The area between the first portion 22 and the second portion 24 in the central sections S11 and S12 is referred to as a first area A1 and the area between the first section 22 and the second section 24 is defined as the outer section S21 and S22. The ratio of the first area A1 to the second area A2 may be 16 to 400 when the area between the second area 24 and the second area 24 is the second area A2. Considering that the magnitude of the force applied to the first portion 22 is proportional to the sum (A1 + A2) of the first area A1 and the second area A2, the display module 10 and the second portion So that the sum of the first area A1 and the second area A2 has a maximum value without interference between the first area A1 and the second area A2. However, the present invention is not limited thereto, and the above-described ratio may vary depending on the area of the display module 10, the radius of curvature R, and the like.

The center fixing portion 26a, the end fixing portion 26b, and the interference prevention fixing portion 26c may be made of various materials. These may be made of a material that is easy to fix and does not damage the second portion 24, and may be made of a material such as a resin (for example, polyphenylamide). However, the present invention is not limited thereto.

And the first portion 22 may be movably fixed by a guide member 28 fixed to the support member 14. [ This makes it possible to move the first portion 22 while preventing deformation of the first portion 22 or the like.

The guide member 28 includes an upper portion 28a spaced apart from the support member 14 by a predetermined space and a side portion 28b bent from the upper portion 28a and adjacent to the support member 14 . The side portion 28b is fixed to the supporting member 14 by the fastening member 28c. For example, a Pam nut (not shown) or the like may be placed on the support member 14, and a fastening member 28c such as a screw is fastened to the fastening hole of the Pam nut and the side surface portion 28b, And the support member 14 can be fixed. In this way, it is simple and easy to fasten by using fannut and screw. However, the present invention is not limited thereto, and various methods and structures can be used for the fixing structure of the supporting member 14 and the side surface portion 28b.

Since the distance between the first portion 22 and the display module 10 increases toward the center portion as described above, the height of the side portion 28b of the guide member 28 can also be increased toward the center portion. According to this, the first part 22 can be freely moved left and right while being effectively supported by the guide member 28.

The ratio D2 / D4 of the distance D2 that the guide members 28 are spaced apart from the respective ends of the first portion 22 is 0.2 to 0.4 days relative to the total length L of the first portion 22 . These ratios are determined so that both side edge portions of the first portion 22 can be firmly fixed so as not to be struck. However, the present invention is not limited thereto.

The rear cover 30 is positioned on the rear surface of the display module 10 and the deformable member 20. The rear cover 30 protects the display module 10, the panel driving unit, and the like by an external impact while providing a space for the structure of the panel driving unit and the like. In addition, the rear cover 30 covers the panel driving unit and the like to prevent the internal structure from being seen from the outside and to improve the appearance. For example, the rear cover 30 may be formed as a curved surface as a whole to secure a sufficient space and improve the appearance. In this embodiment, the rear cover 30 may have a material, structure, and the like that can correspond to the shape change of the display module 10.

A change in the shape of the display device 100 will be described in more detail with reference to FIG. 5 is a view for explaining a shape change of a display device according to an embodiment of the present invention. 5, the illustration of the rear cover 30 is omitted for clarity.

As shown in Fig. 5 (a), the display module 10 has a flat plate shape in the absence of other operations.

At this time, the first and second sections 221 and 222 of the first portion 22 of the deformable member 20 are rotatably fixed by the central fixing portion 26a, and the first and second sections 221 and 222, 222 may be positioned in a more protruding manner toward the rear than the outer ends of the first and second sections 221, 222. Accordingly, the shape of the display module 10 can be more easily deformed. A guide member (reference numeral 28 in FIG. 2) is positioned on both sides of the first portion 22 to allow the first portion 22 to move while supporting the first portion 22. [

When the user gives an instruction to change the shape of the display module 10, energy is supplied to the second portion 24 by a driving portion such as a panel driving portion or a motor to shorten the connection length. That is, by shortening the connection length of the second portion 24 formed of the shape memory alloy by providing electric energy or thermal energy, or by winding the second portion 24 around the rotation axis by providing mechanical energy, Reduce. As a result, the first and second sections 221 and 222 of the first portion 22 are rotated to change their shape so that the end regions protrude over the entire surface, thereby changing the shape of the display module 10. Then, as shown in FIG. 4B, the display module 10 is transformed into a curved surface having a uniform curvature radius R as a whole in the left-right direction, so that the user's immersion feeling can be further improved.

When the user gives an instruction to change the shape to the original state again, as shown in Fig. 4 (a), the variable length member 20 is returned to the initial state by lengthening the connection length to the initial state do. As described above, in this embodiment, the shape of the display module 10 can be changed so as to improve the satisfaction of viewers.

In this embodiment, the first portion 22 has a plurality of sections 221 and 222, and the plurality of sections 221 and 222 are fixed to the fixed portion (that is, the central fixing portion 26a) And is rotatably fixed by the hinge members 224 and 226. As a result, when the plurality of sections 221 and 222 are pulled while the connection length of the second part 224 is changed, the plurality of sections 221 and 222 rotate and the shape of the first part 22 changes. At this time, the plurality of sections 221 and 222, which are rotatably fixed to the central fixing portion 26a, can be easily rotated by a small force. On the other hand, unlike the present embodiment, when the first portion 22 is formed as one section, the first portion 22 is bent while changing the connection length of the second portion 24, 22 should be changed in shape. Then, it is necessary to provide a large force for bending the first portion 22 in order to change the shape of the first portion 22. As described above, in this embodiment, the first portion 22 is divided into a plurality of sections, and by deforming the first portion 22 by rotation, the force required to change the shape of the first portion 22 can be minimized.

The first section 22 has two sections (i.e., the first and second sections 221 and 222), and the first and second sections 221 and 222 have the central fixing sections 26a ). However, the present invention is not limited thereto, and it is also possible that the first portion 22 has three or more sections, and each section is fixed by the fixing portion. It goes without saying that various modifications are possible.

At this time, the distance between the first portion 22 and the second portion 24 by the central fixing portion 26a, the end fixing portion 26b, and the interference preventing fixing portion 26c, The distance between the second part 24 and the display module 10 is changed at a specific position. Accordingly, the shape of the first portion 22 can be changed by a small force, so that the deformation of the display module 10 can be more effectively performed.

Hereinafter, a display device according to another embodiment of the present invention will be described in detail with reference to FIG. The detailed description of the same portions as those of the above-described embodiment will be omitted and only different portions will be described in detail.

6 is a perspective view showing a part of a display device according to another embodiment of the present invention.

6, the guide member 28 of the present embodiment includes a guide pin 284 which is immovably fixed to the support member 14 and is located in the opening 282 formed in the longitudinal direction in the first portion 22, Lt; / RTI > Thus, the first portion 22 can be moved in the left-right direction while supporting the first portion 22 in the up-and-down direction. A guide member 28 for movably supporting the first portion 22 according to various other structures and methods can be applied.

If the first portion 22 is in contact with the support member 14 or the like at the end portion of the first portion 22 as occasion demands, the support member 14 or the first portion 22 may be damaged or the first portion 22 may be damaged. The force may not be effectively delivered to the user. In consideration of this, the protection member 29 fitted to the end of the first part 22 can be positioned at the end of the first part 22. As a result, structural stability and reliability can be further improved.

Features, structures, effects and the like according to the above-described embodiments are included in at least one embodiment of the present invention, and the present invention is not limited to only one embodiment. Further, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified in other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

100: display device
10: Display module
12: Display panel
14: Support member
20: variable member
22: First part
221: first section
222: second section
24: second part

Claims (20)

A display module; And
A deformable member including a first portion for changing the shape of the display module;
Lt; / RTI >
Wherein the first portion comprises a plurality of sections. The method according to claim 1,
Wherein the deformable member includes a fixing portion for fixing the first portion and the display module,
Wherein the plurality of sections include a first section fixed to the fixing section and positioned at one side with respect to the fixing section and a second section fixed to the fixing section and positioned at the other side with respect to the fixing section Device. 3. The method of claim 2,
Wherein the fixing portion includes a central fixing portion located at a central portion of the display module,
Wherein the first section and the second section are positioned symmetrically with respect to the center fixing section. 3. The method of claim 2,
Wherein the first section is rotatably fixed to one side of the fixing section by a first hinge member,
And the second section is rotatably fixed to the other side of the fixing section by a second hinge member. 5. The method of claim 4,
Wherein either one of the first and second hinge members includes either aluminum or steel. 5. The method of claim 4,
Wherein one side of the first hinge member is fixed to one side of the fixing portion by a first fastening member and the other side is fixed to an inner side surface of the first section by a second fastening member,
Wherein one side of the second hinge member is fixed to the other side of the fixing portion by a third fastening member and the other side is fixed to an inner side surface of the second section by a fourth fastening member. The method according to claim 6,
Wherein at least one of the first to fourth fastening members includes a screw or a bolt. 3. The method of claim 2,
Wherein the distance between the inner end of the first or second section and the display module is greater than between the outer end of the first or second section and the display module. 3. The method of claim 2,
And the first and second sections are fixed to the rear of the fixing portion. 3. The method of claim 2,
Wherein the first section and the second section are spaced apart from each other with the central fixing section interposed therebetween. 3. The method of claim 2,
And a second portion having opposite ends that are respectively secured to outer ends of the first and second sections. 12. The method of claim 11,
And the shape of the first portion is changed by changing a connection length between the both side ends of the second portion. 12. The method of claim 11,
The second portion being located between the first portion and the display module,
The variable-
A first end fixing part fixing one end of the first part and an outer end of the first section; And
And a second end fixing portion for fixing the other end portion of the first portion and the outer end portion of the second section,
. 12. The method of claim 11,
And the second portion is located between the display module and the fixing portion. 12. The method of claim 11,
The variable-
A first interference preventive fixing part fixing the second part to the first part in the first section to prevent interference between the second part and the display module; And
And a second section for fixing the second section toward the first section to prevent interference between the second section and the display module,
The display device comprising: The method according to claim 1,
And a guide member movably fixed to the display module and movably supporting the first portion. The display module is a deformable member that changes the shape of the module,
And a second portion having a first portion fixed to the display module and two end portions fixed to opposite ends of the first portion,
Wherein the first portion comprises a plurality of sections. 18. The method of claim 17,
And a fixing portion for fixing the first portion and the display module,
Wherein the plurality of sections include a first section fixed to the fixing section and positioned at one side with respect to the fixing section and a second section fixed to the fixing section and positioned on the other side with respect to the fixing section,
Wherein one side of the second portion is fixed to an outer end of the first section and the other side of the second portion is fixed to an outer end of the second section,
And the second portion is located at an end of the fixing portion adjacent to the display module. 19. The method of claim 18,
Wherein the fixing portion includes a central fixing portion located at a central portion of the display module,
Wherein the first section and the second section are symmetrically formed with respect to the central fixing section. 19. The method of claim 18,
Wherein a distance between an inner end of the first or second section and the display module is larger than an outer end of the first or second section and the display module.

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