KR102068565B1 - Display Device Using Sandwich Honeycomb Panel - Google Patents

Abstract

A curved display panel having a center projecting in the rear direction and a left and right facing the front; And a sandwich honeycomb panel coupled to a rear surface of the display panel and curved at a curvature corresponding to a curved surface of the display panel, wherein the sandwich honeycomb panel includes a front thin plate located at the display panel side, a rear thin plate located at the rear side, And a honeycomb structure composed of a plurality of hexagonal unit cells interposed between the front thin plate and the rear thin plate, wherein the sandwich honeycomb back panel positioned at the rear of the display panel cancels a force to restore the curved display panel to a flat surface. It is possible to support the curved display panel while maintaining the curved surface.

Description

Display device using sandwich honeycomb panel

The present invention relates to a curved display device having a curved sandwich honeycomb panel.

 The structure of the display apparatus using the existing liquid crystal display panel and the plasma display panel is composed of each glass panel constituting the basic screen and the rear cover of the middle frame. The middle frame serves as an intermediate frame for arranging various circuits for driving the display device and for connecting the glass panel and the rear cover. On the other hand, the rear cover needs an additional function of securing the overall display device rigidity, efficiently dissipating heat emitted from the glass panel and the circuit to the outside, and at the same time configuring the appearance of the display device.

 Recently, efforts to reduce the thickness of display devices have been continuously made, and fundamental attempts have been made to improve and simplify the structure of existing display devices. In particular, as the thickness of display devices decreases, the mechanical rigidity and heat dissipation of the rear cover are reduced. Excavations and structural improvements are being made to secure properties.

As a typical material for the rear case of a conventional display device, aluminum, which is a metal material, is typically used, but as the thickness of the case is extremely reduced, the mechanical characteristics of the rear cover have a limitation.

In particular, as the ratio of the rear cover contributes to the overall rigidity of the display device increases, the mechanical properties of the rear cover material itself are required, and it is difficult to obtain the mechanical properties required by the existing metal material aluminum case. In particular, as the size of the case becomes larger, these problems may become more serious. In addition to the metal aluminum, it is necessary to discover a new type of material and devise a structure as an existing back cover material.

It is an object of the present invention to provide a curved display device having rigidity while maintaining a curved shape by using a curved sandwich honeycomb panel.

A curved display panel having a center projecting in the rear direction and a left and right facing the front; And a sandwich honeycomb panel coupled to a rear surface of the display panel and curved at a curvature corresponding to a curved surface of the display panel, wherein the sandwich honeycomb panel includes a front thin plate located at the display panel side, a rear thin plate located at the rear side, And a honeycomb structure interposed between the front thin plate and the rear thin plate and comprising a plurality of hexagonal unit cells.

The hexagonal unit cells may be formed in parallel with opposite sides.

The honeycomb structure, the plurality of metal sheets in which the irregularities are formed in a trapezoid can be stacked alternately.

The hexagonal unit cell may have a larger size of a hexagon contacting the rear thin plate than a size of a hexagon contacting the front thin plate.

The honeycomb tissue may have a size of a hexagonal unit cell in a center portion of the display panel smaller than that of a hexagonal unit cell on a left side and a right side.

The honeycomb structure is composed of a first hexagonal unit cell disposed in the center portion of the display panel and a second hexagonal unit cell disposed on the left and right sides, and the rigidity of the first hexagonal unit cell is the second hexagonal unit. One larger than the rigidity of the cell can be used.

The side closure member may be attached to the side circumference of the sandwich honeycomb panel.

At this time, one of the front thin plate or the rear thin plate includes an end projecting to the outside of the honeycomb tissue, the side closure member may be bonded around the end and the side of the honeycomb tissue.

The side closure member may be formed by folding one end of the front thin plate or the rear thin plate protruding outward of the honeycomb tissue.

And a pem nut inserted into the sandwich honeycomb panel such that the screw insertion portion faces the rear surface, and the rear thin plate has an opening for exposing the screw insertion portion. It may further include.

The circumference of the fem nut body may be formed to correspond to the shape of the hexagonal unit cell.

The pem nut may be fastened with the front thin plate by screws.

The pem nut further includes a pem nut head having an area larger than the diameter of the pem nut body at the other end, and the front thin plate of the portion where the pem nut is inserted is formed with an opening corresponding to the shape of the pem nut head. A femnut head may be inserted into the opening.

The pem nut head may have a hexagonal shape.

The thickness of the pem nut head may be the same as the thickness of the front thin plate.

The femnut head and the femnut body may be coupled with a screw.

The pail nut body may further include a washer protruding from the rear thin plate and inserted into the protruding portion of the pail nut body and fixed to the rear thin plate.

An adhesive may be applied between the palmnut and the sandwich honeycomb panel.

A through-hole formed in the sandwich honeycomb panel and into which the fem nut is inserted;

It may include a resin filled between the fem nut body and the through hole.

An organic light emitting diode (OLED) may be used as the display panel.

In the display device according to at least one embodiment of the present invention, the sandwich honeycomb back panel positioned at the rear of the display panel may cancel a force to restore the curved display panel to a flat surface, thereby supporting the curved display panel while maintaining the curved surface. can do.

In addition, the sandwich honeycomb panel has a rigidity compared to the weight and thickness, thereby reducing the size and weight of the display device.

In addition, by using a pem nut suitable for the special structure of the sandwich honeycomb panel, it is possible to stably fix the pem nut to the sandwich honeycomb panel, and the coupling structure is simple, which simplifies the process of bonding the femnut to the sandwich honeycomb panel.

Technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

1 is a perspective view illustrating a display device according to a first embodiment of the present invention.
2 is an exploded perspective view illustrating a honeycomb structure of the display device according to the first embodiment of the present invention.
3 is a cross-sectional view illustrating a display device according to a first embodiment of the present invention.
4A to 4C are flowcharts illustrating a method of manufacturing a honeycomb structure of a display device according to a first embodiment of the present invention.
5 is a cross-sectional view illustrating a display device according to a second embodiment of the present invention.
6 is a perspective view showing an arcuate plate-shaped member used for manufacturing a honeycomb structure of a display device according to a second embodiment of the present invention.
7 is a cross-sectional view of a display device according to a third embodiment of the present invention.
8 is a cross-sectional view of a display device according to a fourth embodiment of the present invention.
9 and 10 are cross-sectional views showing the finish structure of the honeycomb panel of the display device of the present invention.
11 is a rear view illustrating a display device according to an embodiment of the present invention.
12 is a cross-sectional view showing an embodiment of a pail nut of the display device of the present invention.
FIG. 13 is a perspective view illustrating an example of the pail nut of FIG. 10.
14 is a cross-sectional view showing another embodiment of a pail nut of the display device of the present invention.
FIG. 15A is a perspective view illustrating another embodiment of the fem nut of FIG. 14. FIG.
FIG. 15B is an exploded perspective view showing another embodiment of the pail nut of FIG. 14.
16 and 17 are perspective views illustrating a sandwich honeycomb panel and a pail nut of the display device of the present invention.
18 is a cross-sectional view showing yet another embodiment of a pail nut of the display device of the present invention.

Hereinafter, a sandwich honeycomb panel and a pail nut structure of the display apparatus 100 of the present invention will be described with reference to the drawings. The suffixes "module" and "unit" for components used in the following description are given or mixed in consideration of ease of specification, and do not have distinct meanings or roles.

1 is a perspective view illustrating a display apparatus 100 according to a first embodiment of the present invention. In the display apparatus 100 of the present embodiment, a display panel 10 is disposed on a front surface and supports the display panel 10. And a rear panel 30.

The display panel 10 outputs an image on a screen, and may be modified in a predetermined range. The display panel 10 divides an image into a plurality of pixels and digitizes information such as color, brightness, and saturation for each pixel into an electrical signal, and controls to emit light by adjusting the color, brightness, and saturation of the pixel according to the electrical signal. It is a device that outputs an image.

A flat panel display having a function of outputting such an image may be used in various ways such as a liquid crystal display, a thin film transistor liquid crystal display, a plasma display, an organic light-emitting diode (OLED) display, and the like.

The case is coupled to the rear surface of the display panel 10 to protect the display module, and to provide a control unit for supplying power to the display apparatus 100 or controlling the display apparatus 100.

Recently, as a device such as an organic light emitting diode is used, the display panel 10 becomes thinner, and as consumers prefer the display device 100 having a thinner thickness, the case may cover the rear panel of the display panel 10 only. A form in which a control box mounted with the electronic device 30 and various electronic components 30 and the like is coupled to the rear panel 30 is used.

The structure using the rear panel 30 has an advantage that the size of the display apparatus 100 can be reduced. However, the rigidity of the display apparatus 100 is determined by the thickness of the rear panel 30. Cannot be thinned. On the contrary, when the rear panel 30 is thickened, there is a problem in that the weight of the display apparatus 100 increases and the case manufacturing cost increases.

Accordingly, the sandwich honeycomb panel 30 which can secure the rigidity and reduce the weight increase can be used as the rear panel of the display apparatus 100. As shown in FIG. 2, the sandwich honeycomb panel 30 has a three-layer structure of a pair of thin plates 31 and 32 and a honeycomb structure 35 interposed therebetween.

The honeycomb structure 35 is characterized in that a plurality of hollow hexagonal columnar unit cells 35a are assembled to form a honeycomb structure. Since the side surfaces of the unit cells 35a and the thin plates 31 and 32 face different directions, the side surfaces of the unit cells 35a may prevent the display panel 10 from bending. The sandwich honeycomb panel 30 uses a thinner thickness and less weight of the material than the conventional rear panel of one single member, and can obtain greater rigidity.

A sandwich honeycomb panel 30 having a thickness of about 3 mm can be used by using a pair of thin plates 31 and 32 having a thickness of 0.2 mm and a honeycomb structure 35 having a thickness of 2.6 mm used in the display apparatus 100 of the present invention. have. By using the sandwich honeycomb panel 30 having the thickness, the display panel 10 may be protected from an external impact and a rear panel which is not easily deformed may be provided.

As the screen of the display apparatus 100 becomes larger, distortion occurs as the distance from the user increases toward both ends, and in particular, when implementing a 3D stereoscopic image, a three-dimensional effect decreases toward both ends. In order to compensate for the above problem, as illustrated in FIG. 1, the display apparatus 100 may be implemented with a curved surface.

In particular, as the organic light emitting diode display device 100 is recently used, the backlight unit or the liquid crystal panel may be omitted, and thus the curved display panel 10 may be easily implemented. However, since the organic light emitting diode display is also implemented as a flat surface and is curved in a curved surface, a force to return to the flat surface may be generated. In particular, since the greatest restoring force is applied to the central portion, a structure that cancels the restoring force is required.

3 is a cross-sectional view of the display apparatus 100 according to the first embodiment of the present invention. In the display apparatus 100 using the curved display panel 10, the sandwich honeycomb panel 30 attached to the rear surface of the display panel 10 should also be curved to correspond to the curved surface of the display panel 10.

However, when the flat sandwich honeycomb panel 30 is bent into a curved surface corresponding to the curved surface of the display panel 10, a restoring force to return to its original shape occurs as in the display panel 10. Accordingly, the present invention provides a sandwich honeycomb panel 30 that can cancel the restoring force of the curved display panel 10 to be deformed into a plane. That is, this invention is characterized by the honeycomb structure | structure 35 which does not bend the flat member.

Referring to FIG. 3, the honeycomb structure 35 has the opposite side surfaces of the hexagonal unit cells 35a in parallel, and the size of the hexagons at the front and rear surfaces of the hexagonal unit cells 35a is the same. (A = b) 4A to 4C illustrate a method of manufacturing the honeycomb tissue 35 of FIG. 3.

As shown in FIG. 4A, the adhesive 352 may be applied to the plurality of flat plates 351 at regular intervals, and the interval between the applied adhesives 352 may be three times the width of the applied adhesive 352. At this time, the positions of the adhesives 352 applied to the neighboring flat plates are arranged to alternate with each other. After stacking the flat plate 351 to which the adhesive 352 is applied as shown in FIG. 4B, and pulling up and down, only the portion to which the adhesive 352 is applied is attached to the top and bottom flat plates 351 and the portion to which the adhesive 352 is not applied is A honeycomb structure 35 having a hexagonal unit cell 35a is formed as shown in FIG. 4C.

In addition to the above method, the honeycomb structure 35 may be formed by stacking a plate-shaped member 351 'folded in a trapezoid shape. It was manufactured using a plate member 351 having a width. As shown in FIG. 4C, since the thickness of the honeycomb tissue is thick, the display device 10 may be cut into a shape corresponding to the curvature of the display panel 10. A honeycomb structure 35 used for 100 can be obtained.

5 is a cross-sectional view of the display apparatus 100 according to the second exemplary embodiment of the present invention. In the present exemplary embodiment, the sidewalls of the unit cells 35b are not parallel to each other, and are inclined to correspond to the curvature of the display panel 10 to be in contact with the hexagonal and rear thin plates 32 contacting the front thin plates 31. Hexagons are different sizes (c <d)

As shown in FIG. 6, the honeycomb structure 35 of the present exemplary embodiment may use an arc-shaped plate member 351 ′ corresponding to the curvature of the display panel 10. When the adhesive 352 'is applied, it is not applied in parallel but is applied in an inclined manner corresponding to the curvature of the display panel 10, and is laminated between the neighboring plate members 351a so as to alternate the application position of the adhesive 352b. When pulled, the honeycomb structure 35 composed of the unit cells 35b having the inclined sidewall of FIG. 5 may be formed.

Alternatively, after the unit cells 35b having the sidewalls inclined and the sizes of the hexagons at the front side and the hexagons at the rear sides are manufactured, the honeycomb structure 35 having the curved surface shown in FIG. 5 is formed by arranging the unit cells 35b in a honeycomb structure. It can manufacture.

In the case of manufacturing a honeycomb structure of the curved surface by bending the flat honeycomb tissue, there is a problem that the resilience to return to a flat shape is large and the honeycomb tissue is broken during bending, but the honeycomb tissue 35 manufactured in the above-described manner There is no force to return to the flat shape, the curved surface of the display panel 10 can be maintained.

Since the curved display panel 10 has a large restoring force at the center portion, the rigidity of the rounded portion of the sandwich honeycomb panel 30 may be greater than other portions to offset the restoring force.

As shown in FIG. 7, the restoring force may be canceled by replacing the material of the unit cell 35c in the center part with a material having greater rigidity or by increasing the thickness of the side wall of the unit cell 35c in the center part.

Alternatively, as shown in FIG. 8, the smaller size of the unit cell 35d of the honeycomb tissue may be disposed in the central portion to offset the restoring force applied to the central portion.

The sandwich honeycomb panel 30 has a problem in that the honeycomb tissue 35 is exposed around the end to damage the aesthetics, thereby attaching a finishing member 37 around the sandwich honeycomb panel 30 to cover the side circumference. However, since the thickness of the sandwich honeycomb panel 30 is thin, it is difficult to couple the finishing member 37 covering the side circumference to the sandwich honeycomb panel 30.

Accordingly, as shown in FIG. 9, one of the thin plates 31 and 32 positioned on both sides of the sandwich honeycomb panel 30 is formed larger than the honeycomb tissue 35 so as to protrude, and then the protruding thin plate portion 37a is bent. It is possible to cover the honeycomb structure 35 that is exposed to the cross section of the sandwich honeycomb panel 30.

Alternatively, as shown in FIG. 10, the finishing member 37b may be coupled to both the protruding portion and the side surface of the honeycomb tissue 35 by using a thin plate protruding around the honeycomb tissue 35 to form a honeycomb structure. Compared to the case where only the side of the tissue 35 is coupled, the attachment is easy.

As shown in FIG. 11, the control box is fixed to the sandwich honeycomb panel 30, and at this time, the pamp nut 40 must be inserted into the sandwich honeycomb panel 30. Pam nut 40 is a structure having a screw insertion portion 42 corresponding to the shape of the screw 44 so that the screw 44 can be inserted, a member on one side when the two members are coupled to the screw 44 Is inserted into

In order to support the force of the inserted pem nut 40, the thickness of the inserted member is about 0.8 mm or more. However, the thickness of the thin plates 31 and 32 of the sandwich honeycomb panel 30 described above is only 0.2 mm, so that the nut nut 40 is hardly fixed.

Therefore, the pail nut 40 of the present invention is characterized in that it has a structure that can be easily inserted into the structure of the sandwich honeycomb panel 30 and can be stably fixed at the time of insertion. 4 is a cross-sectional view of the display device 100 according to an embodiment of the present invention, which shows a sandwich honeycomb panel 30 coupled to a rear surface of the display panel 10.

The pamp nut 40 of the present invention includes a pamp nut body 41 having a screw insertion portion 42 formed on one side thereof, and the screw insertion portion 42 is inserted to expose the rear surface of the sandwich sandwich honeycomb panel 30. It is characterized by.

As shown in FIG. 12, the pail nut body 41 of the display apparatus 100 of the present invention is inserted into the unit cell 35a of the sandwich honeycomb panel 30 as shown in FIG. 12. That is, the circumferential shape of the pem nut 40 corresponds to the shape of the unit cell 35a so that the circumference of the fem nut body 41 can be inserted into the unit cell 35a of the sandwich honeycomb panel 30. do.

As described above, since the unit cell 35a has a hollow hexagonal column shape, the fem nut body 41 has a size of a fem nut 40 that can be inserted into the unit cell 35a as shown in FIG. 13. It is a pillar.

Since the honeycomb tissue 35 is resistant to the force in the direction perpendicular to the thickness, the weight of the control box, etc., when the PAM nut 40 inserted in the unit cell 35a is combined with the screw 44 fixing the control box. I can support it.

In order to be more stably fixed, the other end of the front plate 31 and the pail nut body 41 in contact with the display panel 10 or inserted into the circumference of the fem nut body 41 by applying an adhesive or as shown in FIG. It can be fixed by fastening with a screw (44).

That is, the opening 34 is formed so that one unit cell 35a is exposed at the position where the fem nut 40 is inserted into the rear thin plate 32 of the sandwich honeycomb panel 30. The sandwich honeycomb panel 30 may be manufactured by combining the honeycomb tissue 35 with the back plate 32 having the opening 34 for inserting the pumnut 40 at the position where the pumnut 40 is to be inserted in advance. It may be.

The adhesive is applied to the pamp nut body 41 and inserted into the honeycomb unit cell 35a exposed to the back of the sandwich honeycomb panel 30 or penetrated through the front thin plate 31 to be inserted into the other end of the pampnut body 41. It can be fixed using (44). Thereafter, as shown in FIG. 12, the sandwich honeycomb panel 30 is bonded using the display panel 10 and the double-sided tape.

FIG. 14 illustrates another embodiment of the present invention, in which the pumnut 40 used in the embodiment of FIG. 14 is provided with a pumnut head 43. The pem nut head 43 is a plate member of an area larger than the diameter of the pem nut body 41, which is coupled to the other end of the screw nut 44, that is, the other end of the pem nut body 41. As shown in FIG. 14, the pumnut head 43 is positioned on the same plane as the outer side of the honeycomb tissue 35 and the front thin plate 31 to fix the position of the pumnut body 41.

The hexagonal pillar of the nut nut body 41 may be inserted into the unit cell 35a to stably fix the nut nut 40, but the shape of the nut nut head 43 may be more stable if it is polygonal than circular. Can be fixed In particular, by making the shape of the pem nut head 43 into a hexagonal shape as shown in Fig. 15A, the force applied to the pem nut can be evenly distributed.

In order to prevent the honeycomb panel 30 and the display panel 10 from being lifted up, as shown in FIG. 14, the thickness of the head of the fem nut 40 preferably corresponds to the thickness of the front plate 31. .

If the thickness of the nut nut head 43 is so small that it is difficult to be integrally formed as shown in FIG. 15A, the fem nut head 43 and the fem nut body 41 may be manufactured separately and combined with screws 44 as shown in FIG. 15B. have.

When inserting the fem nut 40 with the fem nut head 43, openings 33 and 34 should be formed in both the front thin plate 31 and the rear thin plate 32 as shown in Figs. . In the case of the front thin plate 31, the opening 33 having a size corresponding to the fem nut head 43 is formed in the case of the rear thin plate 32, and an opening 34 having a size corresponding to the cross section of the fem nut body 41 must be formed. do.

After inserting the nut nut 40, the front face of the pail nut head 43 is positioned on the same plane as the front thin plate 31 to form an even surface, and the other side of the pail nut body 41 is exposed and screwed. Insertion portion 42 is visible.

The pem nut body 41 may be formed to have the same thickness as the sandwich honeycomb panel 30, but may protrude as shown in FIG. 17. Protrusion of the pail nut body 41 on the rear surface may vary depending on the thickness of the screw insertion part 42 or the thickness of the sandwich honeycomb panel 30.

When the palmnut body 41 protrudes from the rear plate 32 as shown in FIG. 17, the pawl nut body 41 may be stably fixed by combining washers. The washer is a plate-shaped member having a hole corresponding to the cross section of the pail nut body 41. The pail nut body 41 may be inserted into the hole and coupled to the rear rear plate 32 by a double-sided tape. The washer is fixed to the sandwich honeycomb panel 30 more stably by preventing the inserted nut nut 40 from moving.

18 is a cross-sectional view of the display apparatus 100 according to another exemplary embodiment. The fem nut 40 of the present invention may use a circular fem nut 40 that is commonly used. A hole larger than the thickness of the pumnut body 41 is formed and a resin 36 is filled in the hole to fix the pumnut 40.

Cut the honeycomb structure and the back panel of the sandwich honeycomb panel 30 to form the insertion part of the nut nut 40, and insert the pem nut 40 so that the part of the nut nut 40 and the screw 44 are exposed to the resin 36. It can also be filled. Alternatively, after filling and solidifying the resin 36 in the insertion part of the pamp nut 40 formed by cutting the sandwich honeycomb panel 30, a hole corresponding to the cross section of the pamp nut 40 is formed and a pamp nut ( 40) may be used.

This method has the advantage that the fixing force can be reinforced by the resin 36 and the existing conventional nut nut 40 can be used, there is no need to manufacture the pem nut 40 separately.

In the display device according to at least one embodiment of the present invention, the sandwich honeycomb back panel positioned at the rear of the display panel may cancel a force to restore the curved display panel to a flat surface, thereby supporting the curved display panel while maintaining the curved surface. can do.

In addition, the sandwich honeycomb panel has a rigidity compared to the weight and thickness, thereby reducing the size and weight of the display device.

In addition, by using a pem nut suitable for the special structure of the sandwich honeycomb panel, it is possible to stably fix the pem nut to the sandwich honeycomb panel, and the coupling structure is simple, which simplifies the process of bonding the femnut to the sandwich honeycomb panel.

It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention.

Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

100: display device 10: display unit
15: adhesive 30: sandwich honeycomb panel
31: Front thin plate 32: Rear thin plate
33, 34: opening 35: honeycomb tissue
36: resin 40: fem nut
41: Pamp nut body 42: Screw insertion part
43: femnut head 44: screw
48: washer

Claims (20)

A curved display panel having a center projecting in the rear direction and a left and right facing the front; And
A sandwich honeycomb panel coupled to a rear surface of the display panel and curved at a curvature corresponding to a curved surface of the display panel,
The sandwich honeycomb panel
A front thin plate positioned on the display panel side;
A rear thin plate located at the rear, and
Interposed between the front thin plate and the rear thin plate, and comprises a honeycomb structure consisting of a plurality of hexagonal unit cells, the honeycomb structure is a first hexagonal unit cell disposed in the central portion of the display panel, and the first and the right side disposed It consists of 2 hexagonal unit cells,
And the first hexagonal unit cell is smaller in size than the second hexagonal unit cell. The method of claim 1,
The hexagonal unit cell,
Display device, characterized in that the opposite side is parallel. The method of claim 2,
The honeycomb tissue,
Display device, characterized in that the plurality of metal sheets are formed by trapezoidal irregularities are stacked alternately. The method of claim 1,
The hexagonal unit cell is
A display device, characterized in that the size of the hexagon in contact with the rear plate is larger than the size of the hexagon in contact with the front plate. delete The method of claim 1,
The rigidity of the first hexagonal unit cell is greater than the rigidity of the second hexagonal unit cell. The method of claim 1,
And a side finishing member attached to a side circumference of the sandwich honeycomb panel. The method of claim 7, wherein
One of the front thin plate or the rear thin plate includes an end projecting outward of the honeycomb tissue,
And the side closure member is adhered to the end and the side circumference of the honeycomb tissue. The method of claim 7, wherein
The side closure member
One of the front thin plate or the rear thin plate is a display device, characterized in that formed by folding the end projecting to the outside of the honeycomb tissue. The method of claim 1,
And a pem nut inserted into the sandwich honeycomb panel so that the screw insertion portion faces the rear surface, and includes a pem nut body having a screw insertion portion at one end thereof.
The rear thin plate further comprises an opening for exposing the screw insertion portion. The method of claim 10,
Display device having a honeycomb back cover, characterized in that the circumference of the fem nut body corresponds to the shape of the hexagonal unit cell. The method of claim 10,
The fem nut is a display device, characterized in that fastening with the front thin plate screw. The method of claim 10,
The pem nut further includes a pem nut head having a larger area than the diameter of the pem nut body at the other end,
The front plate of the portion where the fem nut is inserted is formed with an opening corresponding to the shape of the fem nut head, the display device, characterized in that the fem nut head is inserted into the opening. The method of claim 13,
The shape of the pail nut head is a display device, characterized in that the hexagon. The method of claim 13,
The thickness of the pail nut head is the display device, characterized in that the same as the thickness of the front plate. The method of claim 13,
And the palmnut head and the palmnut body are screwed together. The method of claim 10,
The fem nut body protrudes from the rear thin plate,
And a washer inserted into the protruding portion of the pail nut body and fixed to the rear plate. The method of claim 10,
Display device characterized in that the adhesive is applied between the pail nut and the sandwich honeycomb panel. The method of claim 10,
A through-hole formed in the sandwich honeycomb panel and into which the fem nut is inserted;
And a resin filled between the femnut body and the through hole. The method of claim 1,
The display panel includes an organic light emitting diode (OLED).

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