KR102090642B1 - Display apparatus and rear cover used for the same - Google Patents

Abstract

A display device according to an exemplary embodiment of the present invention includes a display module in which an image is implemented; A variable member that changes the shape of the display module; And a rear cover located on the rear surface of the display module and including a cover body having a plurality of divided regions which are divided by the divided portions and connected to each other.

Description

Display device and back cover used therefor {DISPLAY APPARATUS AND REAR COVER USED FOR THE SAME}

The present invention relates to a display device and a rear cover used therein, and more particularly, to a display device having an improved structure and a rear cover suitable for covering the same.

Various forms are used as display devices for realizing images. 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.

As the field of use of the display device gradually expands, various characteristics are required in each field of use, and there is an increase in demands considering not only characteristics related to simply displaying images, but also three-dimensional effect and immersion. In order to satisfy these various demands, research into improving the structure of the display device in various forms is continuing.
Referring to JP Special 2006-023676, a structure in which a display screen is curved is disclosed.

The present invention is intended to provide a display device capable of improving various characteristics such as immersion, and a rear cover used therein and whose shape can be easily changed.

A display device according to an exemplary embodiment of the present invention includes a display module in which an image is implemented; A variable member that changes the shape of the display module; And a rear cover located on the rear surface of the display module and including a cover body having a plurality of divided regions which are divided by the divided portions and connected to each other.

A rear cover according to an exemplary embodiment of the present invention is a rear cover used in a display device, and includes a cover body having a plurality of divided regions that are divided by a divided portion and connected to each other.

In this embodiment, the shape of the display module can be changed to improve the viewer's satisfaction. That is, the user's immersion can be improved by the curved state, and when the curved state is not required, it can have a flat state.

At this time, in the present embodiment, since the rear cover includes a plurality of divided regions divided by the divided portion, the shape can be changed by being integrated with the display module even with a small force. Accordingly, power consumption for changing the shape of the display module or the display device can be minimized, and it is possible to uniformly deform to have a desired shape. In addition, as the divided portion forms a closed space, the edge is formed to be separated from the edge of the rear cover. Thereby, a plurality of divided regions have a state in which they are connected to each other, so that the rear cover can be formed in an integral structure. As a result, structural stability of the rear cover may be improved during manufacturing, transport, and assembly of the rear cover, and cost and time may be reduced.

1 is a front perspective view of a display device according to an exemplary embodiment of the present invention.
2 is a rear exploded perspective view showing a part of a display device according to an embodiment of the present invention.
3 is a rear plan view showing a rear cover of a display device according to an exemplary embodiment of the present invention.
4 is a cross-sectional view of FIG. 2 taken along line IV-IV.
5 is a cross-sectional view taken along line VV of FIG. 2.
6 is a view for explaining the shape change of the display device according to an embodiment of the present invention.
7 is a rear plan view illustrating a rear cover of a display device according to another embodiment of the present invention.
8 is a rear plan view illustrating a rear cover of a display device according to another embodiment of the present invention.
9 is a rear plan view illustrating a rear cover of a display device according to another embodiment of the present invention.
10 is a rear plan view illustrating a rear cover of a display device according to another embodiment of the present invention.
11 is a cross-sectional view illustrating a part of a rear cover of a display device according to another embodiment of the present invention.
12 is a cross-sectional view illustrating 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 should be understood that the present invention is not limited to these embodiments and can be modified in various forms.

In the drawings, in order to clearly and briefly describe the present invention, illustration of parts irrelevant to the description is omitted, and the same reference numerals are used for the same or extremely similar parts throughout the specification. In addition, in the drawings, the thickness and the area are enlarged or reduced in order to make the description more clear. The thickness and area of the present invention are not limited to those shown in the drawings.

In addition, when a part is “included” in another part of the specification, the other part is not excluded and other parts may be further included, unless otherwise stated. In addition, when a part such as a layer, film, region, plate, etc. is said to be "above" another part, this includes not only the case where the other part is "just above" but also another part in the middle. When a part such as a layer, a film, a region, or a plate is said to be "just above" another part, it means that no other part is located in the middle.

Hereinafter, a rear cover according to an embodiment of the present invention and a display device including the same 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, and FIG. 2 is an exploded rear perspective view showing a part of a display device according to an embodiment of the present invention.

1 and 2, the display apparatus 100 according to the present exemplary embodiment includes a display module 10 in which an image is implemented, a variable member 20 for changing the shape of the display module 10, and a display It includes a rear cover 30 that covers the back of the module 10. This will be explained in more detail.

The display device 100 is a device commonly referred to as a screen for viewing data, images, and the like, and may include various types of televisions, computer monitors, mobile phones, and e-books.

The display module 10 includes a display panel 12 that substantially implements an image, a support member 14 positioned on the rear surface of the display panel 12 to support the display panel 12, and a support member 14 It is fixed to and may include a panel driver (not shown) that provides a signal for driving the display panel 12.

In this 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 can be changed by the variable member 20.

As an 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-emissive display panel using a principle in which light is generated while electrons and holes are combined in an organic thin film by flowing an electric current through a fluorescent or phosphorescent organic thin film. The organic light emitting display panel has various advantages such as a bright and clear picture quality, no limitation due to viewing angle, and low power consumption. In particular, since it can be manufactured by laminating an organic thin film, it has excellent flexible properties. 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 located on the rear side of the display panel 12 to support the display panel 12. In addition, a panel driving unit and a variable member 20 that drive the display panel 12 and are fixed to the rear surface of the support member 14 may be located on the rear surface of the support member 14. Accordingly, the support member 14 has a strength capable of being supported and fixed by the display panel 12, the panel driver, and the variable member 20, and the shape may change when the shape of the display panel 12 changes. So it can have flexible properties, elasticity, and the like. In addition, to prevent thermal stress or the like from occurring, the support member 14 may have a coefficient of thermal expansion similar to that of the display panel 12.

For example, in this embodiment, the support member 14 may include a composite material such as a reinforced resin. A composite material is a material that artificially combines two or more types of materials to have excellent properties. For example, the composite material may include reinforced resins such as carbon fiber reinforced plastic (CFRP) and glass fiber reinforced plastic (GFRP). Then, while having light and flexible characteristics by plastic, it can have high strength, elasticity, and excellent abrasion resistance by reinforcing materials of various fiber types. 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 using an adhesive (eg, double-sided tape) or the like. 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 rear surface of the support member 14 includes a circuit board (not shown) including various wires, elements, and the like that provide signals for driving the panel. The panel driving unit 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 in 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 to this, and various modifications such as a part or all of the panel driving unit located outside the display module 10 are possible. In addition, the panel driving unit of this embodiment may include wiring, elements, and the like for driving the variable member 20.

In addition, a frame portion 40 protecting the edges of the display panel 12 and the support member 14 may be further positioned. The frame portion 40 reinforces and protects the edge of the display module 10, while allowing the rear cover 30 to be stably fixed on the display module 10. Various structures and methods may be applied to the shape of the frame portion 40 and the fixed structure of the frame portion 40 and the rear cover 30. Later, with reference to FIG. 5 together, an example of the structure of the frame portion 40 and the fixing structure of the frame portion 40 and the rear cover 30 will be described in detail.

A variable member 20 capable of changing the display panel 12 is located on the rear surface of the display module 10 (more specifically, the support member 14). In this embodiment, the variable member 20 is located between the first part 22 and the support member 14 and the first part 22 fixed to the support member 14 of the display module 10, and both sides It includes a second portion 24 whose ends are fixed to both ends of the first portion 22. And a guide member 28 for movably supporting the first portion 22 may be further included. In this embodiment, the shape of the display module 10 may be changed by changing a distance (hereinafter, “connection length”) between both ends of the second portion 24 fixed to the first portion 22. The shapes of the first and second portions 22 and 24 will be described in more detail.

The first portion 22 may have a band shape that extends while having a constant width (W). Accordingly, it is possible to more effectively provide force to the display module 10. However, the present invention is not limited to this, and the first portion 22 may have various shapes. The first portion 22 may include a material capable of applying a force to the display module 10 by changing the shape together when the shape of the display panel 12 changes while supporting the second portion 24. . Accordingly, the first portion 22 may include a single material or a plurality of layers including a composite material, for example, reinforced resins (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 second portion 24 may have a shape (for example, a wire shape) that extends along the left and right directions of the display module 10. The connection length of the second portion 24 may be changed by various energy (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 connection length. In this case, the second portion 24 may include a shape memory alloy. The shape memory alloy is an alloy that uses shape memory and superplastic properties that appear in austenite-martensitic transformation metals, and has different shapes depending on temperature. The second portion 24 is connected to an element or the like for driving the variable member 20 in the panel driving unit, the temperature is adjusted, and accordingly, the connection length may be changed. As described above, when the connection length of the second portion 24 is changed by thermal energy or electrical energy including a shape memory alloy, the structure is simple and easy to apply, and noise is not generated when the display module 10 is deformed.

As another example, along with the panel driving unit, the connection length of the second portion 24 may be changed by mechanical energy provided to a separate driving unit (not shown, for example, a motor) that supplies mechanical energy. That is, a part of the second part 24 is fixed to the motor, so that the length of the connection of the second part 24 may change due to the rotation or loosening of the part of the second part 24 by the rotation of the motor. You can. In this case, the second portion 24 does not stretch or hardly stretch under various conditions and may be made of a material having a large yield strength. This is because when the second portion 24 is stretched, it may be difficult to precisely deform the connection length, and more mechanical energy must be provided. For example, the second portion 24 may include materials such as metal steel wire (eg, stainless steel wire), aramid fiber, and carbon steel wire. 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 described above, when a drive unit such as a motor changes the shape of the variable member 20 using mechanical energy, the variable member 20 can be easily deformed and the degree of deformation, deformation time, etc. of the variable member 20 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 such as breaking or deformation of the second portion 24 may occur when receiving energy from a driving unit or the like. When the diameter of the second portion 24 exceeds 10 mm, problems may arise, such as increased mechanical energy required to change the connection length of the second portion 24, which increases the cost and complicates the configuration. However, the present invention is not limited to this, and the second portion 24 may have various diameters.

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

Here, the first portion 22 is fixed to the central portion of the display module 10 (more specifically, the support member 14) so as not to be moved, and both ends of the first portion 22 are not fixed but freely Positioned or movable. Accordingly, the shape of the first portion 22 can be changed more freely.

Here, the central portion of the first portion 22 is fixed non-movably by the central fixing portion 26a. For example, the first portion 22 may have a curved shape such that the central region of the first portion 22 has a more protruding round shape toward the rear of the display module 10. Then, as the connection length of the second portion 24 is changed, as shown in FIG. 6, when the display module 10 is transformed into a constant radius of curvature R, the display module 10 is more easily deformed. Can.

The central fixing portion 26a includes a bracket 260a separating the first portion 22 and the second portion 24 while separating the first portion 22 from the support member 14, and 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 make the distance between the first portion 22 and the support member 14 larger in the center than the end. Accordingly, as described above, the first portion 22 may be maintained in a more protruding state toward the rear surface of the display module 10. In addition, since the second portion 24 is located between the bracket 260a and the support member 14, the bracket 260a spaces the first portion 22 and the second portion 24 apart from each other, so that the first portion 22 The distance between and the second portion 24 has a relatively large value. The larger the area between the first portion 22 and the second portion 24, the larger the bending moment, and thus the shape change of the first portion 22 according to the change in the connection length of the second portion 24 It is easy to implement. Accordingly, in the present embodiment, the first portion 22 and the second portion 24 are relatively increased by increasing the first distance L1 between the first portion 22 and the second portion 24 in the central portion. The area can be increased, and accordingly, the shape change of the first portion 24 can be more easily implemented.

In addition, the fastening member 262a may have various configurations and methods to fasten the first part 22 and the support member 14 at the central portion. In one example, the femme nut 14a is positioned on the support member 14, and the fastening member 262a can be fastened to the femme nut 14a by penetrating through the first portion 22 and / or the bracket 260a. Thereby, the first part 22 can be fixed 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 second portion 24, both end portions are fixed to both end portions of the first portion 22, respectively, and a connection length is formed between both end portions of the second portion 24. At this time, both end portions of the second portion 24 may be respectively fixed to both end portions of the first portion 22 by the end fixing portions 26b. That is, the end fixing portion 26b includes a first end fixing portion 261b that fixes one end of the second portion 24 to one end of the first portion 22, and the other side of the second portion 24. It may include a second end fixing portion (262b) for fixing the end to the other end of the first portion (22).

The end fixing portion 26b may fix the second portion 24 to the first portion 22 in various ways. In one example, the end fixing portion 26b has a thickness 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. Or, by forming a hole at 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 to end the second portion 24 Can be fixed to the end of the first portion 22. However, the present invention is not limited to this, and various other methods may be applied.

Accordingly, the distance between the end portion of the first portion 22 and the end portion of the second portion 24 becomes smaller than the center portion. Accordingly, it is possible to easily deform the first portion 22 by increasing the bending moment according to the change in the connection length of the second portion 24.

In this embodiment, the second portion 24 is fixed to the first portion 22 at a portion located between the central fixing portion 26a and the end fixing portion 26b, so that the second portion 24 and the display module 10 are fixed. An anti-interference fixing portion 26c that prevents interference may be located. The anti-interference fixation portion 26c includes a first anti-interference fixation portion 261c positioned between the central fixation portion 26a and the first end fixation portion 261b, and a central fixation portion 26a and a second end portion. A second interference prevention fixing portion 262c positioned between the fixing portions 262b may be included.

The distance between the first portion 22 and the second portion 24 by the anti-interference fixing portion 26c may be gradually reduced from the central fixing portion 26a toward the anti-interference fixing portion 26c. Accordingly, the distance between the second portion 24 and the display module 10 gradually increases from the central fixing portion 26a toward the first anti-interference fixing portion 261c, and then the first anti-interference fixing portion 261c ) Toward the end fixing portion 261b may be gradually reduced. Similarly, accordingly, the distance between the second portion 24 and the display module 10 gradually increases from the central fixing portion 26a toward the second anti-interference fixing portion 262c, and then the second anti-interference fixing portion ( It can be gradually reduced from 262c toward the end fixing portion 262b.

As described above, the second portion 24 may have, for example, a shape similar to the letter “W”. This shape is to maximize the bending moment while preventing problems caused by interference.

The above-described central fixing portion 26a, end fixing portion 26b and anti-interference fixing portion 26c may be made of various materials. These are easy to fix and may be made of a material that does not damage the second portion 24, for example, may be made of a material such as a resin (eg, polyphenylamide). However, the present invention is not limited to this.

In addition, the first portion 22 may be movably fixed by a guide member 28 fixed to the support member 14. Accordingly, 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 spaced apart from the support member 14 at a predetermined space, and a side portion 28b bent from the upper portion 28a and adjacent to the support member 14. Includes. The side portion 28b is fixed to the support member 14 by a fastening member 28c. As an example, a femme nut (not shown) or the like may be located on the support member 14, and a guide member 28 is fastened by fastening a fastening member 28c such as a screw to a fastening hole of the femme nut and the side portion 28b. ) And the supporting member 14 can be fixed. As such, if the femme nut and screw are used, the fastening is simple and easy. 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 can also be increased toward the center portion. According to this, while the first portion 22 is effectively supported by the guide member 28, it can freely move left and right.

In this embodiment, the variable member 20 may be formed to be elongated along one direction (eg, left and right directions of the display device 100). 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 can be entirely bent to have a constant radius of curvature in the left and right directions (reference numeral R in FIG. 6, hereinafter the same). When the shape of the display module 10 changes as described above, the distance from the user's eyes to the display panel 12 is at a very fine level even if there is no difference or difference in the center portion and the edge portion. Accordingly, the immersion of the user can be improved. However, the present invention is not limited to this. Therefore, the deformed shape of the variable member 20 may vary, and accordingly, the deformed shape of the display module 10 may vary.

In addition, in the drawing, the variable member 20 is shown as an example that is located in the upper portion of the display module 10 and the lower portion of the display module 10. When only one variable member 20 is located in the central portion, it is considered that deformation of the upper and lower edge portions of the display module 10 may not easily occur. When a plurality of the variable 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 it is possible to reduce the cost and simplify the structure by having only one variable member 20. Alternatively, three or more variable members 20 may be provided in consideration of the case where the display module 10 is enlarged. Of course, various other modifications are possible.

In addition, although not separately illustrated in the drawings, a stopper member that maintains the shape of the display module 10 may be further included. Then, after changing the shape of the display module 10, it is possible to maintain the shape of the display module 10 without additional power supply. Various structures and methods may be applied as the stopper member.

And the rear cover 30 is located on the rear surface 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 with external impact while providing a space in which a configuration such as a panel driver is located. In addition, the rear cover 30 covers the panel driving unit and the like to prevent the internal configuration from being seen from the outside and serves to improve the appearance. In one example, the rear cover 30 is made of a curved surface as a whole to sufficiently secure a space and improve appearance.

In this embodiment, the rear cover 30 has a structure capable of responding to a change in shape of the display module 10 when the shape of the display module 10 changes. Accordingly, without disturbing the shape change of the display module 10, the display module 10 is protected and the appearance is maintained even when the shape of the display module 10 is changed. This will be described in detail with reference to FIGS. 3 to 5 together.

3 is a rear plan view showing a rear cover of a display device according to an exemplary embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2. 5 is a cross-sectional view taken along line V-V of FIG. 2.

In the present embodiment, the rear cover 30 is provided with a plurality of divided regions 320 by the dividing portion 32a, and at the same time, a plurality of divided regions 320 are connected to each other to form an integral structure ( 32).

Thus, when the cover main body 32 is provided with the dividing portion 32a, when the shape of the display module 10 changes, the force of changing the shape of the rear cover 30 can be reduced. That is, when the rear cover 30 is formed of one plate having a uniform thickness because it does not include the dividing portion 32a, a large force is required because the shape of one plate must be changed as a whole. In addition, since the shape changes based on one plate, the displacement is also large and it is difficult to apply a uniform force to all parts. On the other hand, as in the present embodiment, if the rear cover 30 includes a plurality of divided regions 320, it is possible to deform by applying a relatively small force to deform one divided region 320. . In addition, since the displacement of each divided region 320 is small, it is possible to better respond to shape changes and uniform shape changes are possible.

At this time, in the present embodiment, the plurality of divided regions 320 of the cover body 32 are formed to be connected to each other in an integral structure. This simplifies the fixing structure with the display module 10 and reduces the time and cost required for processes such as manufacturing, transporting and fixing the cover body 32. That is, when a plurality of divided regions 320 are separately provided, each divided region 320 must be manufactured and transferred separately and assembled to the display module 10 separately. Accordingly, the time and cost required for the process had to be increased. On the other hand, in this embodiment, it is possible to minimize the time and cost when manufacturing, transporting, fixing by forming the cover body 32 in an integral structure.

For example, in this embodiment, the edge of the divided portion 32a formed in the cover body 32 and the edge of the cover body 32 are separated by a predetermined distance. That is, the dividing portion 32a is formed to have a closed space inside the cover body 32. In this way, the dividing part 32a has a kind of island shape. As a result, the cover body 32 has a constant thickness and is connected to each other in a portion where the divided portion 32a is not formed to form an integral structure.

The dividing part 32a may be formed of a hole, a slit, or the like formed through the cover body 32. By doing so, the cover body 32 is partially physically divided to minimize the force required to change the shape of the rear cover 30. However, the present invention is not limited to this, and it is also possible that the dividing portion 32a does not penetrate the cover body 32. This will be described in detail later with reference to FIG. 11.

The planar shape of the dividing portion 32a may have various structures to easily change the shape of the rear cover 30. As an example, as described above, when the display module 10 is deformed from a left-right direction to a curved surface having a constant radius of curvature R, the dividing portion 32a has a shape extending in a vertical direction that intersects the left-right direction You can. When the display module 10 is deformed to have a curved surface in the left-right direction, a bending force acts in the left-right direction of the rear cover 30. In consideration of this, in the embodiment, the dividing portions 32a are formed to extend long in the vertical direction, and the plurality of divided regions 320 are arranged in the left and right directions. Accordingly, the width of the divided region 320 to which the bending force is applied becomes relatively small, so that the divided region 320 can be easily deformed.

At this time, the division portion 32a extends in the vertical direction for a long time, but as described above, the edge may be spaced apart from the edge of the cover body 32. At this time, the edges constituting the dividing portion 32a may constitute a closed curve. More specifically, the dividing portion 32a is formed while having a uniform line width T as a whole, and may be formed such that both ends thereof are rounded (that is, have a curved shape, for example, in a semicircular shape). According to this, stress concentration at both ends of the dividing portion 32a can be relieved. Therefore, it is possible to prevent a problem such that the stress is concentrated at both ends of the dividing portion 32a and the edges between the both ends of the dividing portion 32a and the edge of the cover body 32 are damaged. However, the present invention is not limited thereto, and the dividing portion 32a may have various shapes. In particular, when the shape of the display module 10 by the variable member 20 is changed, the shape of the division unit 32a may also be changed to correspond to this.

Here, the line width T of the dividing portion 32a may be 1 mm to 5 mm. When the line width T of the dividing portion 32a is smaller than 1 mm, it may be difficult to significantly reduce the force required for the shape change of the cover body 32. In addition, when the line width T of the dividing portion 32a is greater than 5 mm, the strength of the cover body 32 may be lowered and the appearance of the rear cover 30 may be lowered by the dividing portion 32a. However, the present invention is not limited to the line width T of the dividing portion 32a. Accordingly, it is needless to say that the line width T of the dividing portion 32a may be changed according to the size of the display module 10, the bending strength of the display module 10, the shape change of the display module 10, or the like.

In addition, the distance EL between the end portion of the dividing portion 32a and the edge of the cover body 32 adjacent thereto can ensure that the cover body 32 forms an integral structure while sufficiently securing the length of the dividing portion 32a. It is enough. In one example, the distance EL between the end of the dividing portion 32a and the edge of the cover body 32 adjacent thereto may be 5 mm to 20 mm. When the distance EL is less than 5 mm, stress may be concentrated on this portion, and a problem such as damage to the corresponding portion may occur. When the distance EL exceeds 20 mm, the length of the dividing portion 32a is insufficient, and thus, a large amount of force may be required to deform the rear cover 30. However, the present invention is not limited to this. Accordingly, it is needless to say that the distance EL may be changed according to the size of the display module 10, the bending strength of the display module 10, the shape change of the display module 10, and the like.

In this embodiment, a plurality of divisions 32a are provided to make it easier to change the shape of the rear cover 30. In one example, the distance DT between two neighboring partitions 32a (that is, the width of one partition area 320) is 10% to 30% of the total length TL of the rear cover 30 You can. If the distance DT between the dividing parts 32a is less than 10% of the total length TL, the strength of the rear cover 30 is deteriorated and it may be difficult to sufficiently perform the role of protecting the display module 10. . When the distance DT between the dividing parts 32a exceeds 30% of the total length TL, a large force may be required to change the shape of the rear cover 30 when the shape of the display module 10 is changed. However, the present invention is not limited to this. Therefore, it is needless to say that the ratio of the distance DT may be changed according to the size of the display module 10, the bending strength of the display module 10, the shape change of the display module 10, and the like.

In addition, in this embodiment, it is illustrated that the distance DT between the dividing parts 32a is uniform throughout. However, the present invention is not limited to this, and the distance DT between the dividing portions 32a may be different. This will be described in detail later with reference to FIG. 10.

In this embodiment, the dividing parts 32a are formed at positions corresponding to each other while having the same length EL. That is, one end (eg, the upper end of the drawing) of the plurality of dividing parts 32a has the same value as the edge of the cover body 32 (eg, the upper edge of the drawing) adjacent thereto. Similarly, the other end (eg, the lower end of the drawing) of the plurality of divisions 32a has the same value as the edge of the cover body 32 (eg, the lower edge of the drawing) adjacent thereto. Accordingly, while forming the dividing portion 32a having a sufficient length DL, the symmetry characteristics of the cover body 32 may be improved to improve the stability of the cover body 32.

The cover body 32 may protect the display module 10 from external shocks and the like, and may be made of various materials that allow the display device 100 to have a certain strength. The cover body 32 may be formed using a variety of materials, and may be formed using metal (eg, aluminum) or resin. The cover body 32 may have various thicknesses. For example, the thickness of the cover body 932) may be 1.0 mm to 2.5 mm, but the present invention is not limited thereto.

When the dividing portion 32a is formed through the cover body 32 as in the present embodiment, the rear cover 30 further includes a cover member 34 that blocks a portion penetrated by the dividing portion 32a. can do. The cover member 34 may be formed of various materials capable of blocking a portion penetrated by the dividing portion 32a. In one example, the cover member 34 may be formed of a material such as fabric. In this case, the fabric may be formed of various materials (for example, a fabric including polyurethane, for example, spandex) having stretchable properties. Then, when the shape of the rear cover 30 changes due to the elasticity, it can be easily responded. However, the present invention is not limited to this, and the cover member 34 may use a fabric having a stiff property (for example, a nylon-based metal fabric). In this case, the weaving direction may be positioned in a diagonal direction so that the shape of the rear cover 30 can be easily changed. By the cover member 34, the penetrating portion of the dividing portion 32a can prevent external contaminants or the like from entering the inside of the display device 100, and make the dividing portion 32a invisible to the outside. Aesthetics can be improved.

Here, the thickness of the cover member 34 may be 0.1 mm to 1.0 mm. If the thickness of the cover member 34 is less than 0.1 mm, the role of preventing the inflow of contaminants from the outside may not be sufficiently performed, and when the thickness exceeds 1.0 mm, the material cost increases and the thickness of the display device 100 increases. It can be increased unnecessarily. However, these figures are presented for illustration only, and the present invention is not limited thereto. Therefore, of course, the thickness of the cover member 34 may have various values.

In the present embodiment, it is illustrated that the cover member 34 is formed in correspondence with each dividing portion 32a and provided in plural. Since the area of the dividing portion 32a is small on the cover body 32, the material used for the cover member 34 can be saved by allowing the cover member 34 to be positioned only at the portion where the dividing portion 32a is formed. However, the present invention is not limited thereto, and the cover member 34 may be formed as a whole, and this example will be described later with reference to FIG. 12.

At this time, the cover member 34 may be located on the inner surface side (ie, the display module 10 side). Thereby, it is possible to prevent problems such as the cover member 34 being exposed to the outside and deteriorating the aesthetic sense. The cover member 34 may be fixed to the cover body 32 by the adhesive material layer 36. Various materials can be used as the adhesive material layer 36, but for example, a double-sided tape that is convenient to use may be used. Thus, in this embodiment, the cover member 34 can be stably fixed by a simple method. However, the present invention is not limited thereto, and various structures and methods capable of fixing the cover member 34 to the cover body 32 may be applied.

The cover body 32 may include a body portion 321 and a flange portion 322. Here, the main body portion 321 is a portion having a substantially curved surface and substantially forming an outline, and the flange portion 322 is located at the edge portion of the main body portion 321 while the display module 10 and / or the frame portion This is for connecting with (40).

The flange portion 322 may be formed or positioned with a fixing member having various structures for connection with the display module 10 and / or the frame portion 40. As an example, the drawing illustrates that the first fastening hole 322a is formed in the flange portion 322. The first fastening holes 322a may be formed to be spaced apart from each other at regular intervals. For example, at the upper and lower edges, the first fastening holes 322a are formed at positions corresponding to the central portion of each divided region 320 (ie, locations corresponding to the central portion between neighboring divided portions 32a). Can be. As a result, it is possible to prevent the stress from being concentrated on the divided portion 32a, thereby improving the stability of the cover body 32, and stably fixing the divided region 320. The fixing structure of the display module 10, the flange portion 322, and the frame portion 40 using the first fastening hole 322a will be described in more detail with reference to FIGS. 2 and 5.

2 and 5, the first fixing member 14b is positioned on the support member 14 of the display module 10 in a position corresponding to the first fastening hole 322a. In one example, the first fixing member 14b may be a femme nut.

In addition, a second fastening hole 40a is formed in a portion of the display module 10 and the frame portion 40 surrounding the flange portion 322 to cover a rear surface of the flange portion 322. In one example, the frame unit 40 includes a front portion 401 positioned on the front surface of the display module 10, a side portion 402 covering the edges of the display module 10 and the flange portion 322, and a flange portion 322 ) Includes a rear portion 403 located on the rear surface, and a second fastening hole 40a may be formed in the rear portion 403. The second fastening hole 40a may be formed at a position corresponding to the first fastening hole 322a of the flange portion 322.

The second fixing member 42 is inserted to penetrate the first fastening hole 322a and the second fastening hole 40a while the display module 10 and the flange part 322 are located inside the frame part 40. By doing so, it can be fastened to the first fixing member 14b. As the second fixing member 42, various configurations that are fastened to the first fixing member 14b may be applied. For example, screws, bolts, or the like may be used. Then, the display module 10, the flange portion 322, and the frame portion 40 can be easily and securely fixed by the first and second fixing members 42 having a simple structure. However, the present invention is not limited to this. Of course, the shape, structure, and method of the first and second fixing members 42 for fixing may be variously modified. As an example, various methods such as fitting and adhesive may be used.

In addition, the first and second fastening holes 322a and 40a may be formed to be long in the left and right directions of the display module 10. When it is deformed into a curved surface having a constant radius of curvature R in the left and right directions of the display module 10, the divided region 320 is stretched and / or the distance between the divided portions 32a is increased. Accordingly, the first and second fastening holes 322a and 40a are elongated in the left and right directions of the display module 10 to flexibly cope with changes in the width of the divided region 320 and / or the divided portion 32a. .

In the present embodiment, the above-described dividing portion 32a is formed to extend to a part of the flange portion 322. Accordingly, it is possible to prevent the shape of the rear cover 30 from being suppressed by the flange portion 322 acting as a kind of reinforcing material. Accordingly, the shape of the rear cover 30 can be easily changed.

The shape change of the display device 100 will be described in more detail with reference to FIG. 6. 6 is a view for explaining the shape change of the display device according to an embodiment of the present invention. For reference, FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 2.

As shown in (a) of FIG. 6, in the absence of other manipulation, the display module 10 has a flat shape.

At this time, the first portion 22 of the variable member 20 is fixed to the central region is not movable by the central fixing portion 26a, the central portion than the left and right edges may be located in a more protruding form toward the rear. . According to this, the shape deformation of the display module 10 can be made more easily. Guide members are located on both sides of the first portion 22 to movably support the first portion 22.

When the user gives a command for changing the shape of the display module 10, energy is supplied to the second portion 24 by a driving unit such as a panel driving unit or a motor, thereby shortening the connection length. That is, the connection length of the second portion 24 made of a shape memory alloy is shortened by providing electrical energy or thermal energy, or the connection length is shortened by winding the second portion 24 on a rotating shaft by providing mechanical energy. Decrease. Then, while the first portion 22 is bent as a whole, the shape is changed so that the end region protrudes toward the front, whereby the shape of the display module 10 is also changed. Then, as shown in (b) of FIG. 6, the display module 10 is transformed into a curved surface having a uniform radius of curvature R in the left and right directions, thereby becoming a curved state that can further improve the user's immersion. The curved state is maintained by the stopper member (not shown).

When the user gives a command to change the shape of the display module 10 to a flat state, the variable member 20 is restored to the initial state so as not to apply force to the display module 10 to Figure 6 (a) As illustrated, the display module 10 returns to a flat state.

As described above, in this embodiment, the shape of the display module 10 may be changed to improve the viewer's satisfaction. As an example, as described above, the left and right edges of the display module 10 may protrude forward so that the display module 10 has a curved surface state to have a constant radius of curvature R in the left and right directions. Then, the distance from the user's eyes to the display panel 12 does not have a difference in the central portion and the side portion, or even a very small level. Accordingly, the immersion of the user can be improved. In addition, when a curved state is not required (for example, a current affairs program or a culture program), the display module 10 may have a flat state to satisfy all of various viewers' needs.

At this time, in the present embodiment, since the rear cover 30 includes a plurality of divided regions 320 divided by the divided portion 32a, the shape may be changed by being integrated with the display module 10 even with a small force. Accordingly, power consumption for changing the shape of the display module 10 or the display device 100 can be minimized, and it is possible to uniformly deform to have a desired shape. At this time, the divided portion 32a forms a closed space, and its edge is formed to be spaced apart from the edge of the rear cover 30. Accordingly, the plurality of divided regions 320 may be connected to each other, so that the rear cover 30 may be integrally formed. Accordingly, when manufacturing, transporting, and assembling the rear cover 30, structural stability of the rear cover 30 may be improved, and cost and time may be reduced.

Hereinafter, a back cover and / or a display device including the same according to another embodiment of the present invention will be described in detail with reference to FIGS. 7 to 12. Hereinafter, detailed descriptions of the same or similar contents to those described above will be omitted, and only different parts will be described in detail.

7 is a rear plan view illustrating a rear cover of a display device according to another embodiment of the present invention.

Referring to FIG. 7, in the present embodiment, the parallel dividing portion 32b including the first dividing portion 321b and the second dividing portion 322b that are formed at different positions and are parallel to each other is included.

The first dividing portion 321b is formed close to one edge (the lower edge of the drawing) of the rear cover 30. That is, the distance EL1 between one end of the first dividing portion 321b and one edge of the rear cover 30 is the distance between the other end of the first dividing portion 321b and the other edge of the rear cover 30. It is larger than (EL2). Here, the other side of the first dividing portion 321b is formed to extend to the flange portion 322 formed on the other edge of the rear cover 30.

The second dividing portion 322b is formed close to the other edge (the upper edge of the drawing) of the rear cover 30. The distance EL3 between one end of the second dividing portion 322b and one edge of the rear cover 30 is the distance EL4 between the other end of the second dividing portion 322b and the other edge of the rear cover 30. ). Accordingly, the shape of the rear cover 30 can be easily changed by the first and second dividing portions 321b and 322b, but the area of the entire dividing portion 32 can be reduced to improve the strength of the rear cover 30. have. Here, the one side of the second dividing portion 322b is formed to extend to the flange portion 322 formed on one edge of the rear cover 30.

At this time, the distance EL1 between one end of the first division 321b and one edge of the rear cover 30 is the distance between the other end of the second division 322b and the other edge of the rear cover 30. (EL4). Similarly, the distance EL2 between the other end of the first division 321b and the other edge of the rear cover 30 is between one end of the second division 322b and one edge of the rear cover 30. It may be similar to the distance (EL3). That is, the first division portion 321b and the second division portion 322b may be symmetrically formed based on the center point of the rear cover 322. Then, while maintaining the symmetry of the rear cover 30 in an excellent state, it is possible to reduce the area of the entire division 32b.

8 is a rear plan view illustrating a rear cover of a display device according to another embodiment of the present invention.

Referring to FIG. 8, in this embodiment, the parallel dividing part 32b is formed at different positions and includes a first dividing part 321b and a second dividing part 322b parallel to the edge of the rear cover 30. And an inclined dividing portion 32c including a third dividing portion 321c and a fourth dividing portion 322c formed to be inclined with an edge of the rear cover 30. The parallel dividing portion 32b has been described with reference to FIG. 7, and thus the description is omitted and the inclined dividing portion 32c will be described in detail.

The inclined divider 32c is formed to be inclined such that an end portion far from the edge of the rear cover 30 faces the center of the rear cover 30. This will be explained in more detail.

The third dividing portion 321c is formed close to one edge (the lower edge of the drawing) of the rear cover 30. That is, the distance EL1 between one end of the third division 321c and one edge of the rear cover 30 is the distance between the other end of the third division 321c and the other edge of the rear cover 30. It is larger than (EL2). Here, the other side of the third dividing portion 321c is formed to extend to the flange portion 322 formed on the other edge of the rear cover 30. In addition, the third dividing portion 321a is inclined such that the one side of the third dividing portion 321c is closer to the center of the rear cover 30 than the other side of the third dividing portion 321c.

The fourth dividing portion 322c is formed close to the other edge of the rear cover 30 (the upper edge of the drawing). The distance EL3 between one end of the fourth dividing portion 322c and one edge of the rear cover 30 is the distance EL4 between the other end of the fourth dividing portion 322c and the other edge of the rear cover 30. ). Accordingly, the shape of the rear cover 30 can be easily changed by the first and second dividing portions 321b and 322b, while reducing the area of the entire dividing portion 32 to improve the strength of the rear cover 30. have. Here, the one side of the fourth dividing portion 322c is formed to extend to the flange portion 322 formed on one edge of the rear cover 30. In addition, the fourth dividing portion 322d is formed to be inclined so that the other side of the fourth dividing portion 322c is closer to the center of the rear cover 30 than the one side of the fourth dividing portion 322c.

In this case, the distance EL1 between one end of the third division 321c and one edge of the rear cover 30 is the distance between the other end of the fourth division 322c and the other edge of the rear cover 30. (EL4). Similarly, the distance EL2 between the other end of the third division 321c and the other edge of the rear cover 30 is between one end of the fourth division 322c and one edge of the rear cover 30. It may be similar to the distance (EL3). That is, the first division part 321b and the fourth division part 322c may be symmetrically formed based on the center point of the rear cover 322. Then, the area of the entire dividing portion 32c can be reduced while maintaining the symmetry of the rear cover 30 in excellent condition.

In this embodiment, the parallel dividing portion 32b is located at the center of the rear cover 30 and the inclined dividing portion 32b is located outside the parallel dividing portion 32b. Then, when the display module 10 is deformed to have a certain radius of curvature in the vertical direction as well as in the left and right directions when deforming the curved surface, the rear cover 30 can be easily changed to a desired shape as a whole.

9 is a rear plan view illustrating a rear cover of a display device according to another embodiment of the present invention.

Referring to FIG. 9, the dividing unit 32d according to the present exemplary embodiment may have a plurality of dividing portions 320d. That is, the divided portions 32d formed in the same direction (up and down direction of the drawing) do not have a long continuous shape, but are provided with a plurality of divided portions 320d spaced apart from each other. According to this, it is possible to flexibly respond to the shape change of the rear cover 30 while increasing the strength of the rear cover 30 by reducing the entire area of the dividing portion 32d.

10 is a rear plan view illustrating a rear cover of a display device according to another embodiment of the present invention.

Referring to FIG. 10, in this embodiment, the distance between the dividing portions 32d can be made smaller at the edge than the center portion. In one example, the distance between the dividing portions 32d is kept constant at the center so that a plurality of dividing regions 320 of the same or similar width are located. Further, in other regions, the distance between the dividing portions 32d may gradually decrease toward the edge. Then, the width required for changing the shape of the rear cover 30 can be minimized by making the width of the divided region (the same reference numeral 320 in FIG. 1 hereinafter) smaller in the edge portion having a large amount of displacement.

11 is a cross-sectional view illustrating a part of a rear cover of a display device according to another embodiment of the present invention.

Referring to FIG. 11, the dividing portion 32f according to the present embodiment has a form in which only a part of the thickness of the rear cover 30 is cut or removed. That is, the dividing portion 32f is formed in a form of a groove, a concave portion, a groove, a trench, or the like.

Accordingly, the plurality of divided regions 320 are connected to each other, and have a shape divided by the divided portions 32f. Even in this case, the force required to deform the rear cover 30 can be reduced by removing a portion of the rear cover 30 in a predetermined pattern by the dividing portion 32f. At this time, when the display module 10 is bent in a curved shape, the dividing portion 32f may be located on the outer surface of the rear cover 30. Then, the rear cover 30 can be easily deformed with a smaller force.

In this embodiment, the divided regions 320 are partitioned by the divided portion 32f, but are not completely divided from each other, so that the divided regions 320 are connected to each other. In FIG. 11, it is illustrated that the dividing portion 32f has a rectangular cross section. Then, it is possible to maintain a stable state without a large portion of relatively concentrated stress, so that even when the shape change occurs repeatedly, fatigue destruction or the like can be prevented. However, the present invention is not limited to this. Therefore, the dividing portion 32f has a triangular cross section so that it can be easily manufactured and the force for deformation can be further reduced. Alternatively, the stress concentration may be further relieved because the dividing portion 32f has a rounded shape. That is, the shape of the dividing portion 32f may have various polygons, and various rounded shapes such as a semi-circle, a semi-ellipse, and a U-shape.

12 is a cross-sectional view illustrating a part of a display device according to another embodiment of the present invention. 12 is a cross-sectional view showing a portion corresponding to the portion shown in FIG. 5.

In this embodiment, the cover member 34 is not formed corresponding to each division, but one cover member 34 may entirely cover the cover body 32. The structural stability of the rear cover 30 having the plurality of divided regions 320 may be improved by the cover member 34 and the aesthetic sense may be improved.

The cover member 34 may be located on the rear cover 30 by various methods. At this time, FIG. 12 illustrates that the cover member 34 is located on the outer surface side of the rear cover 30. However, the present invention is not limited to this, and similarly to the above-described embodiment, it is possible that the cover member 34 is located on the inner surface side of the rear cover 30.

For example, in this embodiment, the edge of the cover member 34 is fixed to the guide member 38 and the guide member 38 is fixed between the cover body 32 and the frame portion 40 and the support member ( 14), the rear cover 30 and the frame portion 40 is fixed. Then, the cover member 34 is fixed inside the frame portion 40. Alternatively, as a modification, the cover member 34 may be attached to the cover body 32 by an adhesive material or the like. In addition, the cover member 34 may be fixed on the cover body 32 by various methods.

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. Furthermore, features, structures, effects, and the like exemplified in each embodiment may be combined or modified for other embodiments by a person having ordinary knowledge in the field to which the embodiments belong. Therefore, the contents related to such combinations and modifications should be interpreted 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: part 1
24: part 2
30: rear cover
32a, 32b, 32c, 32d, 32e, 32f: divider
320: partition

Claims (20)

An image display module;
A variable member that changes the shape of the display module; And
Located on the rear surface of the display module, the rear cover including a cover body having a plurality of divided regions which are divided by the divided portions and connected to each other.
Including,
In the plurality of divided areas, a part of each divided area extends in the left-right direction and is connected to the integrated display device. delete According to claim 1,
A display device in which an edge of the dividing portion is formed to be spaced apart from an edge of the cover body, and the dividing portion forms a closed space. According to claim 1,
A display device in which an edge of the dividing portion constitutes a closed curve. According to claim 1,
A display device having an end portion of the division portion rounded. According to claim 1,
The distance between the end of the divided portion and the edge of the cover body adjacent thereto is 5 mm to 20 mm,
A display device having a width of the division of 1 mm to 5 mm. According to claim 1,
The division unit, a display device consisting of a hole or a slit through the cover body. According to claim 1,
The dividing portion is a display device composed of a groove having a thinner thickness than the other portion of the cover body. According to claim 1,
A plurality of the separation portions are spaced apart from each other,
The dividing portion is formed in one direction, and the plurality of dividing portions are spaced apart in different directions intersecting the one direction,
A display device having a distance between the divisions of 10% to 30% of the total length of the cover body. According to claim 1,
The display body includes a main body portion and a flange portion positioned at an edge of the main body portion and fixed to the display module. The method of claim 10,
A frame portion surrounding an edge of the flange portion and the display module; And
Fixing member for fixing the display module, the rear cover and the frame portion
Display device further comprising a. According to claim 1,
The dividing portion penetrates the cover body,
The rear cover includes a cover member that blocks a portion penetrated by the divided portion. The method of claim 12,
The cover member is a display device comprising a fabric. According to claim 1,
A plurality of divisions are provided,
A display device in which the plurality of divisions have the same length and are formed at positions corresponding to each other. According to claim 1,
A plurality of divisions are provided,
The plurality of dividing portions include a first dividing portion positioned closer to one edge of the rear cover and a second dividing portion positioned closer to the other edge of the rear cover. According to claim 1,
A plurality of divisions are provided,
The plurality of dividing portions, a display device including a parallel dividing portion formed parallel to the edge of the rear cover, and an inclined dividing portion formed inclined with the edge of the rear cover. According to claim 1,
A plurality of divisions are provided,
A display device including a plurality of divided portions, wherein the divided portions are separated from each other. As a back cover used in a display device,
It includes a cover body having a plurality of divided regions that are divided by the divided portion and connected to each other,
The plurality of divided areas are integrally formed with a rear cover connected to a part of each divided area extending in the left and right directions. The method of claim 18,
The rear cover in which the cover body is formed in an integral structure. The method of claim 18,
The dividing portion penetrates the cover body,
A rear cover further comprising a cover member for blocking a portion penetrated by the divided portion.

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