KR102048360B1 - Display apparatus and variable member used for the same - Google Patents

Abstract

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

Description

DISPLAY APPARATUS AND VARIABLE MEMBER USED FOR THE SAME}

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

Various forms are used as a display device for implementing an image. For example, there are various displays such as a liquid crystal display panel, a plasma display panel, an organic light emitting diode display panel, and the like.

As the field of use of display devices is gradually expanded, various characteristics are required in each field of use, and demands that consider not only the characteristics related to simply displaying an image but also stereoscopic and immersive feelings are increasing. In order to satisfy such various needs, researches to improve the structure of the display apparatus into various forms have been continued.

An object of the present invention is to provide a display device having an improved structure to improve viewing feeling and a variable member used therein.

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

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

The display device according to the present exemplary embodiment may change the shape of the display module to improve the satisfaction of the viewer.

In this case, the first part of the variable member may include a plurality of sections rotatably fixed to the fixing part to change a shape by a small force, thereby changing 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 different from each other at a specific position. As a result, the first part is easily deformed by a small force so that the deformation of the variation display 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 exemplary embodiment of the present invention.
FIG. 3 is an enlarged perspective view of portion A of FIG. 2.
4 is a cross-sectional view of the display device taken along the line IV-IV of FIG. 2.
5 is a view for explaining the shape change of the display device according to an embodiment of the present invention.
6 is a perspective view illustrating a portion of a display device according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention; However, the present invention is not limited to these embodiments and may be modified in various forms.

In the drawings, illustrations of parts not related to the description are omitted in order to clearly and briefly describe the present invention, and the same reference numerals are used for the same or extremely similar parts throughout the specification. In the drawings, the thickness, the width, and the like are enlarged or reduced in order to clarify the description. The thickness, the width, and the like of the present invention are not limited to those shown in the drawings.

And when any part of the specification "includes" other parts, unless otherwise stated, other parts are not excluded, and may further include other parts. In addition, when a part of a layer, film, region, plate, etc. is said to be "on" another part, this includes not only the case where the other part is "just above" but also the other part located in the middle. When parts such as layers, films, regions, plates, etc. are "just above" another part, it means that no other part is located in between.

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

1 is a front perspective view of a display device according to an embodiment of the present invention, Figure 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 portion A of FIG. 2, and FIG. 4 is a cross-sectional view of the display device taken along the line IV-IV of FIG. 2.

Referring to the drawings, the display apparatus 100 according to the present embodiment includes a display module 10 in which an image is implemented and a variable member 20 for changing the shape of the display module 10. The rear cover 30 may cover the rear surface of the display module 10. This is explained in more detail.

The display apparatus 100 collectively refers to various apparatuses for representing materials, images, and the like as images, and may include various kinds of televisions, computer monitors, mobile phones, e-books, and the like.

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

In the present exemplary embodiment, the display panel 12 is a panel having various structures and methods capable of realizing an image, and having a flexible characteristic, so that the shape may be changed by the variable member 20.

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

The support member 14 is positioned at the rear of the display panel 12 to support the display panel 12. In addition, a panel driver and a variable member 20 which drive the display panel 12 and are fixed to the support member 14 may be positioned on the rear surface of the support member 14. Accordingly, the support member 14 may have a strength that the display panel 12, the panel driver, and the variable member 20 may be supported and fixed, and may change when the shape of the display panel 12 changes. It may have flexible properties, elasticity and so on. In addition, the support member 14 may have a coefficient of thermal expansion similar to that of the display panel 12 to prevent thermal stress and the like from occurring.

For example, in the present embodiment, the support member 14 may include a composite material such as reinforced plastic. Composite materials are materials that have excellent properties by artificially combining two or more kinds of materials. In one embodiment, the support member 14 in the present embodiment may include a reinforced plastic such as carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GFRP). Then, while having light and flexible properties by the plastic, it can have a high strength, elasticity, excellent wear resistance by a variety of fiber type reinforcement. The support member 14 may be composed of a single composite material layer, or a plurality of composite material layers may be stacked for excellent strength.

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

The panel driver fixed to the back side of the support member 14 includes a circuit board (not shown) including various wirings, elements, and the like, which provide signals for driving the panel. Such a panel driver may be fixed to the support member 14 by a bracket (not shown) or the like. For example, when the bracket is fixed to the support member 14 only at a central portion thereof to change the shape of the display panel 12. The required force can be minimized. However, the present invention is not limited thereto, and various modifications may be made, such as some or all of the panel driver located outside the display module 10. The panel driver of the present exemplary embodiment may include a wiring, an element, and the like for driving the variable member 20.

In addition, a frame portion (not shown) may be further positioned to protect edges of the display panel 12 and the support member 14. The frame part protects the display panel and the support member 14, and allows the rear 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, etc. may be applied in various structures, methods, a detailed description thereof will be omitted.

At the rear of the display module 10 (more specifically, the support member 14), a variable member 20 capable of changing the display panel 12 is located. In the present exemplary embodiment, the variable member 20 is positioned between the first part 22 fixed to the support member 14 of the display module 10, between the support member 14 and the first part 22, and on both sides thereof. The second portion 24 has an end fixed to both ends of the first portion 22. In this case, the first portion 22 may be composed of a plurality of sections. And a guide member 28 supporting at the inner portion of the first portion 22 may be further included. In the present embodiment, the shape of the first portion 22 may be changed by changing the distance between the two end portions of the second portion 24 fixed to the first portion 22 (hereinafter, “connection length”). As a result, the shape of the display module 10 may be changed. The shape of the first and second portions 22, 24 will be described in more detail.

In the present exemplary embodiment, the variable member 20 may be elongated along one direction (for example, the left and right directions of the display apparatus 100). The second portion 24 is positioned between the display module 10 and the first portion 22. In addition, when the connection length of the second portion 24 of the variable member 20 is shortened, both end portions of the first portion 22 are changed to protrude. Then, the display module 10 may be bent as a whole so as to have a constant radius of curvature (reference numeral R of FIG. 5, hereinafter same) in the left and right directions. As such, when the shape of the display module 10 changes, the distance from the user's eyes to the display panel 12 may be very fine even if there is no difference or no difference between the center part and the edge part. Accordingly, the immersion of the user can be improved. However, the present invention is not limited thereto. Therefore, the deformation shape of the variable member 20 may vary, and accordingly, the deformation shape of the display module 10 may vary.

In addition, in the drawings, the variable member 20 is illustrated as an example in which one is positioned in the upper portion of the display module 10 and in the lower portion of the display module 10. When only one variable member 20 is positioned at the center portion, it is considered that deformation of the upper and lower edge portions of the display module 10 may not occur. As such, when the plurality of variable members 20 are provided, the shape of the display module 10 may be uniformly changed. However, the present invention is not limited thereto, and only one variable member 20 may be provided to reduce cost and simplify the structure. Alternatively, three or more variable members 20 may be provided in consideration of the case where the display module 10 has a large area. Of course, various modifications are possible.

In this case, the second portion 24 may have a shape (eg, a wire shape) that is elongated along the left and right directions of the display module 10. The connection length of the second portion 24 can be varied by various energies (ie thermal energy, electrical energy, mechanical energy).

For example, when the second portion 24 is made of a material whose shape changes with temperature, the second portion 24 is provided by changing the temperature of the second portion 24 by providing thermal energy or electrical energy. You can change the length of the connection. 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 superplasticity properties that appear in austenitic-martensitic metals and has different shapes with temperature. The second portion 24 is connected to an element or the like for driving the variable member 20 in the panel driver so that the temperature is adjusted, and thus the connection length may be changed. As such, when the connection length is changed by thermal energy or electrical energy, including the shape memory alloy, the second part 24 is easy to apply due to its simple structure, and noise is not generated when the display module 10 is deformed.

As another example, together with the panel drive, the connection length of the second portion 24 may be varied by the mechanical energy provided to a separate drive (not shown, for example a motor) that supplies mechanical energy. That is, the part of the second part 24 is fixed to the motor so that the connection length of the second part 24 may change due to the rotation of the motor and the part of the second part 24 being wound or unwound by the rotation shaft of the motor. Can be. In this case, the second portion 24 may be made of a material which does not stretch or hardly stretch even under various conditions and has a large yield strength. As the second portion 24 is stretched it can be difficult to precisely deform the connection length and provide more mechanical energy. In one example, the second portion 24 may include a material such as metal wire (eg, stainless steel wire), aramid fiber, carbon steel wire, or the like. In addition, the second portion 24 may be made of various materials. A driving unit such as a motor that provides mechanical energy may have various configurations capable of changing the shape of the variable member 20. As such, when a driving unit such as a motor changes the shape of the variable member 20 by using mechanical energy, the variable member 20 can be easily deformed, and the degree of deformation of the variable member 20, the deformation time, etc. are precisely controlled. can do.

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

In addition, although the drawing illustrates that only one second portion 24 is provided for each first portion 22, various modifications are possible, such as having a plurality of second portions 24.

As described above, when the connection length of the second part 24 is changed, the shape of the first part 22 is changed, and the first part 22 exerts a force on the display module 10 to The shape will also change to correspond. As described above, 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 flexibility and excellent strength. In addition, the material constituting the first part 22 may be a light material to reduce the weight of the display apparatus 100.

In one example, the first portion 22 may have a single or multiple layers comprising a composite material, for example reinforced plastics (CFRP, GFRP, etc.). However, the present invention is not limited thereto, and the first part 22 may be formed of various materials. In addition, the first portion 22 may have a band shape that is elongated while having a constant width (W). As a result, a force can be more effectively provided to the display module 10. However, the present invention is not limited thereto, and the first part 22 may have various shapes.

In this case, 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 unfixed or movably positioned. Accordingly, the shape of the first portion 22 can be changed more freely.

The first portion 22 is fixed to the central fixing portion 26a and is positioned on the other side of the central fixing portion 26b, and is fixed to the central fixing portion 26a and the central fixing portion 26a. The second section 222 is fixed to the other side of the). For example, the first section 221 and the second section 222 may be spaced apart from each other with the central fixing portion 26a therebetween. This allows the first section 221 and the second section 222 to easily change into the desired shape if necessary without being interfered with each other. In this case, the first section 221 and the second section 222 may be symmetrically positioned with respect to the central fixing part 26a. Then, when the shape of the variable member 20 changes, the force may be uniformly distributed, thereby preventing problems such as distortion.

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

And the second section 222 is fixed to the other side of the central fixing portion 26b rotatably by the second hinge member 226. Here, the second hinge member 226 has two plate members rotatably coupled to each other, one plate member is fixed to the other side of the central fixing portion 26a by the third fastening member 226a Another plate-like member is secured to the second section 222 by the second fastening member 226b.

In this embodiment, the first and second hinge members 224 and 226 are used to connect the central fixing portion 26a and the first and second sections 221 and 222, respectively. , 222 is firmly fixed on the central fixing portion 26a while the first and second sections 221, 222 are rotatable. For example, any one of the first and second hinge members 224 and 2226 may include aluminum, steel, or the like. However, the present invention is not limited thereto, and various structures, methods, materials, and the like may be applied to the first and second hinge members 224 and 2226.

And first and second sections using the first and second hinge members 224 and 226, using fastening members such as bolts or screws as the first to fourth fastening members 224a, 224b, 226a and 226b. 221, 222 and center fixing part 26a can be easily and simply fastened. However, the present invention is not limited thereto, and various fastening members having different structures and methods may be applied to the first to fourth fastening members 224a, 224b, 226a, and 226b.

The central fixing portion 26a includes a bracket 260a that separates the first portion 22 and the second portion 24 while separating the first portion 22 from the support member 14, the bracket 260a, or It may include 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 at the end portion. At this time, the first and second sections 221 and 222 are fixed to the rear of the central fixing portion 26a such that the distance between the inner end of the first and second sections 221 and 222 and the supporting member 14 is sufficient. Can be secured. Thereby the first distance L1 between the central portion of the first portion 22 (more specifically, the inner (center) end of the first and second sections 221, 222) and the central portion of the support member 14. Can 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, 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 round shape that protrudes further toward the rear of the display module 10. Then, the display module 10 may be more easily deformed when the display module 10 is deformed to a certain radius of curvature R as a whole by changing the connection length of the second part 24.

In addition, since the second part 24 is positioned between the bracket 260a and the support member 14, the bracket 260a spaces the first part 22 and the second part 24 apart from each other and thus the first part 22. And the distance between the second portion 24 (ie, the first distance L1) has a relatively large value. As the area between the first portion 22 and the second portion 24 increases, the shape change of the first portion 22 may be easily implemented according to the change in the connection length of the second portion 24. Therefore, in the present embodiment, the first distance 22 between the first portion 22 and the second portion 24 by relatively increasing the first distance L1 of the first portion 22 and the second portion 24 in the center portion. The area can be made large, thereby making it easier to implement the shape change of the first portion 24.

For example, the height T1 of the bracket 260a (ie, the first distance L1 between the first portion 22 and the second portion 24) may be 10 mm to 50 mm. When the height T1 of the bracket 260a exceeds 50 mm, the thickness of the display apparatus 100 may be increased and the structural stability of the first portion 22 may be degraded. 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.

In addition, the fastening member 262a may have various configurations and methods for fastening the first portion 22 and the support member 14 at the center portion. For example, the fem nut 14a may be positioned on the support member 14, and the fastening member 262a may be fastened to the fem nut 14a by passing through the first portion 22 and / or the bracket 260a. This makes it possible to fix the first portion 22 to the support member 14 simply and easily. However, the present invention is not limited thereto, and various methods and structures may be used as the fixing structure of the support member 14 and the side portion 28b.

In the present exemplary embodiment, the first portion 22 is spaced apart from the side edge of the display module 10 by a predetermined distance D1. 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 1 mm to 30 mm. When the distance D1 exceeds 30 mm, it may be difficult for the first portion 22 to apply the force evenly to the edge of the display module 10. When the gap D1 is less than 1 mm, the first part 22 protrudes to the outside of the display module 10 when the first part 22 is deformed, which may cause problems or other parts may not be easily deformed. Can be. However, the present invention is not limited thereto, and the distance D1 may vary depending on the size of the screen, the radius of curvature R of the screen, and the like.

Both end portions of the second portion 24 are fixed to both end portions of the first portion 22, respectively, and the connection length is formed between both end portions of the second portion 24. In this case, both end portions of the second portion 24 may be fixed to both end portions of the first portion 22 by the end fixing portion 26b. That is, the end fixing part 26b is a first end fixing part that fixes one end of the second part 24 to one end of the first part 22 (that is, the outer end of the first section 221). 261b and a second end fixture 262b that secures the other end of the second portion 24 to the other end of the first portion 22 (ie, the outer end of the second section 222). can do.

End fixation 26b may secure second portion 24 to first portion 22 in a number of ways. In one example, the end fixing portion 26b has a height smaller than the bracket 260a of the central fixing portion 26a, and the second portion 24 may be embedded therein to penetrate a portion of the end fixing portion 26b. have. Alternatively, the end of the second portion 24 is formed by forming a hole in the end of the first portion 22, passing the end of the second portion 24 through the hole, and then filling the hole with an adhesive or a sealing material or the like. Can be fixed to the end of the first portion 22. However, the present invention is not limited thereto and various other methods may be applied.

Accordingly, the distance between the end of the first portion 22 and the end of the second portion 24 has a second distance L2 smaller than the above-described first distance L1. As a result, the first portion 22 can be easily deformed by effectively transmitting a force to the first portion 22 by the second portion 24.

The end of the second part 24 fixed to the end fixing part 26b and the display module 10 (or the thickness of the end fixing part 26b) may be spaced apart by a third distance L3. This is to ensure that the end of the second portion 24 does not interfere with the display module 10. In particular, the distance between the second part 24 and the display module 10 is closer when the shape of the display module 10 is changed according to the change in the connection length of the second part 24, which is considered. For example, the third distance L3 may be 1 mm to 10 mm. If the third distance exceeds 10 mm, the thickness of the display apparatus 100 may be unnecessarily increased. When the third distance L3 is less than 1 mm, an end portion of the second portion 24 may interfere with the display module 10. However, the present invention is not limited thereto and various modifications are possible.

In the present embodiment, the second part 24 and the display module 10 are fixed by fixing the second part 24 toward the first part 22 at a part located between the central fixing part 26a and the end fixing part 26b. An interference prevention fixing part 26c may be positioned to prevent interference of the device. The interference prevention fixing part 26c includes a first interference preventing fixing part for fixing the second part 24 toward the first section 221 at a portion between the central fixing part 26a and the first end fixing part 261b. 261c and a second anti-interference fixation portion 262c that secures the second portion 24 toward the second section 222 at a portion between the central fixation portion 26a and the second end fixation portion 262b. can do.

The distance between the first part 22 and the second part 24 can be gradually reduced by the interference preventing fixing part 26c toward the interference preventing fixing part 26c from the central fixing part 26a. Accordingly, the distance between the second portion 24 and the display module 10 gradually increases from the central fixing portion 26a toward the first interference preventing fixing portion 261c, and then the first interference preventing fixing portion 261c And gradually decrease toward the end fixing portion 261b. Likewise, the distance between the second portion 24 and the display module 10 gradually increases from the central fixing portion 26a toward the second interference preventing fixing portion 262c, and then the second interference preventing fixing portion ( It can gradually become smaller from 262c toward the end fixture 262b.

In this case, a section constituting the center of the second portion 24 and moving toward the end of the second portion 24 while the distance from the rear surface of the display module 10 is far away is referred to as the center sections S11 and S12. The sections located outside the sections S11 and S12 and toward the end of the second part 24 and closer to the end of the second portion 24 from the rear surface of the display module 10 may be referred to as the outer sections S21 and S22.

At this time, the center sections S11 and S12 include the first center section S11 between the center fixing part 26a and the first interference preventing fixing part 261c, and the central fixing part 26a and the second interference preventing height. It may include a second central section (S12) between the government (262c). The first central section S11 and the second central section S12 may have symmetrical structures with respect to the central portion where the central fixing portion 26a is located. This is to prevent a problem such that the display module 10 is distorted due to a uniform force applied to both sides.

Similarly, the outer sections S21 and S22 include a first outer section S21 between the first interference preventing fixing part 261c and the first end fixing part 261b, and a second interference preventing fixing part 262c. It may include a second outer section (S22) between the second end fixing portion (262b). The first outer section S21 and the second outer section S22 may have a structure that is symmetrical with respect to the center portion where the central fixing portion 26a is located. This is to prevent a problem such that the display module 10 is distorted by acting uniformly on both sides.

As described above, the second portion 24 may, for example, have a shape similar to the "W". This shape is to maximize the force applied to the first portion 22 while preventing the problem caused by the interference.

In this case, the length ratio of the first central section S1 (or the second central section S12) to the total length L of the first portion 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 may be small. 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 ratio may be variously changed.

As described above, the distance between the second part 24 and the display module 10 is gradually increased in the center sections S11 and S12 by the interference preventing fixing part 26c. Interference with the display module 10 can be prevented from disturbing deformation. In addition, a large force may be transmitted to the first portion 22 by optimizing the length ratio of the center sections S11 and S12.

At this time, the area between the first part 22 and the second part 24 in the central sections S11 and S12 is called the first area A1, and the first part 22 in the outer sections S21 and S22. When the area between the second portion 24 and the second area A2 is referred to as a second area A2, the ratio of the first area A1 to the second area A2 may be 16 to 400. This is because 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, and thus, the display module 10 and the second part. It is determined that the sum of the first area A1 and the second area A2 has the largest possible value without the interference of (24). However, the present invention is not limited thereto, and the above ratio may vary depending on the area of the display module 10, the radius of curvature R, and the like.

The above-described center fixing part 26a, the end fixing part 26b, and the interference preventing fixing part 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 part 24. For example, the material may be made of a material such as resin (eg, polyphenylamide). However, the present invention is not limited thereto.

In addition, the first portion 22 may be movably fixed by the guide member 28 fixed to the support member 14. As a result, the first portion 22 can be moved while preventing deformation such as sagging of the first portion 22.

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

As described above, since the distance between the first portion 22 and the display module 10 increases toward the center portion, the height of the side portion 28b of the guide member 28 may also increase toward the center portion. According to this, the first portion 22 can be freely moved from side to side while being effectively supported by the guide member 28.

With respect to the total length L of the first portion 22, the ratio D2 / D4 of the distance D2 from which each guide member 28 is spaced from each end of the first portion 22 is 0.2 to 0.4 days. Can be. This ratio is determined so that both edge portions of the first portion 22 can be firmly fixed so as not to sag. However, the present invention is not limited thereto.

The rear cover 30 is located at the rear of the display module 10 and the variable member 20. The rear cover 30 protects the display module 10, the panel driver, and the like by an external impact while providing a space in which the configuration of the panel driver and the like is located. In addition, the rear cover 30 serves to prevent the internal configuration from being seen from the outside by covering the panel driving unit and the like and improving the appearance. For example, the rear cover 30 may be formed of a curved surface as a whole to secure enough space and improve appearance. In the present embodiment, the rear cover 30 may have a material, a structure, or the like that may correspond to the shape change of the display module 10.

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

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

In this case, the first and second sections 221 and 222 of the first portion 22 of the variable member 20 are rotatably fixed by the central fixing portion 26a, and the first and second sections 221, The central end of 222 may be located in a more protruding manner toward the back than the outer ends of the first and second sections 221, 222. Accordingly, the shape deformation of the display module 10 can be made more easily. Guide members (reference numeral 28 in FIG. 2) are 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 a command to change the shape of the display module 10, energy is supplied to the second portion 24 by a driver such as a panel driver or a motor to shorten the connection length. That is, the connection length of the second part 24 made of the shape memory alloy is shortened by providing electrical energy or heat energy, or the connection length is shortened by winding the second part 24 on the rotational axis by providing mechanical energy. Reduce Then, as the first and second sections 221 and 222 of the first part 22 rotate, respectively, the shape changes so that the end region protrudes to the front, thereby changing the shape of the display module 10. Then, as shown in (b) of FIG. 4, the display module 10 is deformed into a curved surface having a generally uniform radius of curvature R in the left and right directions, thereby improving the immersion of the user.

When the user gives a command to change the shape back to the original state, as shown in Fig. 4A, the variable member 20 returns to the initial state by lengthening the connection length to the initial state. do. As such, in the present embodiment, the shape of the display module 10 may be changed to improve the satisfaction of the viewer.

In this embodiment, the first portion 22 has a plurality of sections 221, 222, and the plurality of sections 221, 222 are fastened to the fixing portion (ie, the central fixing portion 26a). The hinge members 224 and 226 are rotatably fixed. Accordingly, when the plurality of sections 221 and 222 are pulled while the connection length of the second portion 224 is changed, the plurality of sections 221 and 222 rotate to change the shape of the first portion 22. In this case, the plurality of sections 221 and 222 rotatably fixed to the central fixing portion 26a may be easily rotated by a small force. On the other hand, unlike in the present embodiment, when the first portion 22 is formed as one section, the first portion 22 is bent while the connecting length of the second portion 24 is changed, so that the first portion 22 is bent. It is necessary to change the shape of 22). Then, in order to change the shape of the first portion 22, a force large enough to bend the first portion 22 should be provided. As such, in the present embodiment, the force required to change the shape of the first part 22 may be minimized by dividing the first part 22 into a plurality of sections and deforming the same by rotation.

In the above-described embodiment, the first portion 22 has two sections (ie, the first and second sections 221, 222), and the first and second sections 221, 222 have a central fixation 26a. It is illustrated to be fixed to). 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. In addition, various modifications are possible, of course.

At this time, the distance between the first portion 22 and the second portion 24, the first portion 22 and the display by the central fixing portion 26a, the end fixing portion 26b, and the interference preventing fixing portion 26c. The distance between the modules 10 and the distance between the second portion 24 and the display module 10 are varied at specific locations. As a result, the shape of the first part 22 may be changed by a small force so that the deformation of the display module 10 may be more effectively performed.

Hereinafter, a display apparatus according to another exemplary embodiment of the present invention will be described in detail with reference to FIG. 6. The same parts as in the above-described embodiment will be omitted in detail, and only different parts will be described in detail.

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

Referring to FIG. 6, the guide member 28 of the present embodiment is fixed to the support member 14 in a movable manner and is located in the opening 282 formed in the longitudinal direction in the first part 22. Is done. This allows the first portion 22 to move in the left and right directions while supporting the first portion 22 in the vertical direction. Various other structures and methods may be applied to the guide member 28 for movably supporting the first portion 22.

In some cases, the support member 14 or the first portion 22 may be damaged or the first portion 22 may be damaged when the first portion 22 comes into contact with the support member 14 or the like. Might not be effectively transmitted. In consideration of this, the protection member 29 fitted at the end of the first part 22 may be positioned at the end of the first part 22. As a result, structural stability, reliability, and the like can be further improved.

Features, structures, effects, and the like as described above are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. In addition, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified with respect to other embodiments by those skilled in the art to which the embodiments belong. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present invention.

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)

Display module; And
Variable member for changing the shape of the display module
Including,
The variable member has a first portion of varying shape and two side ends adjacent to both side edges of the display module and fixed to both ends of the first portion, respectively, and positioned between the first portion and the display module. A second part, and a fixing part for fixing the first part and the display module,
The first portion includes a plurality of sections,
The plurality of sections may include a first section fixed to the fixing part and positioned at one side with respect to the fixing part, and a second section fixed to the fixing part and positioned at the other side with respect to the fixing part,
And a distance between both end portions of the second portion is changed such that both end portions of the first portion protrude beyond the center portion of the first portion, thereby changing the shape of the display module. delete The method of claim 1,
The fixing unit includes a central fixing unit located in the central portion of the display module,
And the first section and the second section are symmetrically positioned with respect to the center fixing portion. The method of claim 1,
The first section is rotatably fixed to one side of the fixing portion by a first hinge member,
And the second section is rotatably fixed to the other side of the fixing part by a second hinge member. delete delete delete The method of claim 1,
And a distance between the inner end of the first or second section and the display module is greater than the outer end of the first or second section and the display module. delete delete delete delete delete delete The method of claim 1,
The variable member,
A first interference preventing fixing part fixing the second part toward the first part in the first section to prevent interference between the second part and the display module; And
A second interference preventing fixing part which fixes the second part toward the first part in the second section to prevent interference between the second part and the display module;
Display device including at least one of. delete delete delete delete delete

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