KR101749715B1

KR101749715B1 - Display apparatus

Info

Publication number: KR101749715B1
Application number: KR1020150181928A
Authority: KR
Inventors: 조성하; 임민수
Original assignee: 희성전자 주식회사
Priority date: 2015-12-18
Filing date: 2015-12-18
Publication date: 2017-07-04

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device which is advantageous for simplifying the structure of a back cover for supporting a display panel and reducing the number of components, The reinforcing face edge of the plate is continuously bent from the upper side to the outer side and the lower side to form an inner side face, a horizontal face and an outer side face, and a connecting groove is formed between the inner side face and the outer side face, ; And a back cover coupled to the back surface of the metal sheet so that the coupling ribs are inserted into the coupling grooves while the edge of the support surface on the plate is bent upward to form a coupling rib.
INDUSTRIAL APPLICABILITY The present invention is advantageous in that the display device can be made slimmer and lighter while the display panel is stably supported by applying the display panel by combining the single-layered back cover and the metal sheet.

Description

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a display device, and more particularly, to a display device that simplifies a structure of a back cover for supporting a display panel and reduces the number of parts, thereby being slim and lightweight.

2. Description of the Related Art Generally, a display device is a device for receiving and displaying an image signal, and includes a TV, a monitor, and the like. As means for displaying an image, an OLED (Organic Light Emitting Display) Display Device), and Plasma Display Panel (PDP).

In recent years, as the information society has developed, the demand for display devices has been increasing in various forms and gradually becoming lighter, larger and slimmer. Particularly, in the case of a display device applied to a TV, as the demand for a large-sized display device increases, there is an increasing demand for a lightweight and slimmer TV structure as well as high picture quality and high definition.

FIG. 1 is an exploded perspective view showing a conventional display device, and FIG. 2 is an enlarged cross-sectional view showing an assembling structure of a main part of the display device of FIG.

As can be seen from these drawings, the display device 10 is provided with a display panel 11 on its front surface, and the back cover 12 is assembled to support the display panel 11 , And a middle cabinet (13) is fastened along the edges thereof. At this time, the display panel 11 and the back cover 12 in the edge area are bonded to the middle cabinet 13 via the double-sided tape 14, and the display panel 11 and the back cover 12 The magnetic pad 15 can be intervened.

Here, the display panel 11 is a key construction of the display device 10, in which a pixel and a circuit are formed on a thin glass substrate by a semiconductor process, and a pixel and a circuit formed are sealed again with a glass substrate, And the thickness thereof is usually only a few millimeters, but its area is usually 20 to 30 inches when used as a monitor, and usually 40 inches or more when used as a TV. Since the display panel 11 having such a small thickness and a large area is susceptible to impact, a reinforcing and supporting structure is indispensably provided in order to prevent breakage due to impact.

Therefore, the display device 10 is essentially provided with a back cover 12 for supporting and protecting the display panel 11. [ The back cover 12 should be made of a plate having sufficient rigidity to stably support the display panel 11. For example, the back cover 12 may be made of a high-strength aluminum resin as disclosed in Korean Patent No. 10-1472340 (Prior Art 1) And an aluminum composite material (ACM). The ACM back cover of the prior art document 1 has a multi-layer structure composed of a resin core layer and a pair of aluminum skin layers disposed between the resin core layers.

The ACM back cover has a resin core layer having a thickness of at least about 1.5 mm to support a 55-inch display panel, an aluminum skin layer having a thickness of at least 0.4 mm or more, and a total thickness of at least 2.3 mm. Since the rigidity of the back cover is proportional to the thickness of the composite material, the back cover using the ACM according to the conventional technique must have a thickness of at least 2.3 mm or more based on 55 inches. Therefore, the ACM back cover of the above- And a limitation on weight reduction. In addition, the display device of the prior art document 1 has a problem that the manufacturing cost is increased by using an expensive composite material favoring rigidity as the back cover.

The display device 10 is essentially provided with a middle cabinet 13 for decorating the rim. The middle cabinet 13, which is applied to a display device according to the related art, is made of plastic article or metal frame made of extruded aluminum. Nickel chrome can be separately plated on the surface to improve appearance. Therefore, the display device according to the related art has a problem of increasing the manufacturing cost of the display device by applying the plating process to the surface for improving the appearance of the middle cabinet.

In order to solve such a problem, Korean Unexamined Patent Publication No. 10-2015-0021682 (prior art document 2) proposes a display device having a structure for reinforcing the supporting force of a display panel using a rigid bar. The display device of the prior art document 2 has an effect of improving the supporting force by interposing an 'H' shaped rigid bar between the display panel and the rear cover.

However, the display device of the prior art document 2 has a problem in that the overall thickness of the display device is limited by the thickness and weight of the rigid bar itself, and the edge of the display panel is exposed to the outside, . Also, since the display device requires a plurality of screw fastening processes to fix the rigid bar, the assembling process is complicated and takes a long time to assemble.

Korean Registered Patent No. 10-1472340 (registered and display device) Korean Patent Publication No. 10-2015-0021682 (published on Mar. 3, 2013)

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide a display device which is advantageous in slimness and light weight by applying a single-layered back cover.

Another object of the present invention is to provide a display device capable of enhancing the rigidity of a back cover by using a metal sheet and improving the appearance of the back cover by using a metal sheet to reduce manufacturing cost.

According to an aspect of the present invention, there is provided a display device including: a display panel; The reinforcing face edge of the plate is continuously bent from the upper side to the outer side and the lower side to form an inner side surface, a horizontal surface and an outer side surface, and a connecting groove is formed between the inner side surface and the outer side surface, ; And a back cover coupled to the back surface of the metal sheet so that the coupling ribs are inserted into the coupling grooves while the edge of the support surface on the plate is bent upward to form a coupling rib.

Here, the metal sheet couples the display panel to the inner side of the inner side, and the horizontal and outer sides form a rim.

Further, the metal sheet and the back cover may be further combined using an adhesive member interposed between the reinforcing surface and the support surface.

Further, the reinforcing surface of the metal sheet or the supporting surface of the back cover is subjected to bending or stepping.

The present invention is advantageous in that the display device can be made slimmer and lighter while the display panel is stably supported by supporting the display panel by combining the single-layered back cover and the metal sheet.

Further, the display device of the present invention exhibits an effect of further improving the rigidity for supporting the display panel by applying a curved or stepped surface to the back cover and the surface of the metal sheet.

In addition, the display device of the present invention has the effect of reducing the manufacturing cost and simplifying the assembling process by removing the middle cabinet by bending the edge of the metal sheet in the shape of '∩'.

1 is an exploded perspective view showing a display device according to a conventional technique,
2 is an enlarged sectional view showing an assembling structure of a main part of the display device of FIG. 1,
3 is an exploded perspective view showing a main configuration of a display device according to an embodiment of the present invention,
FIG. 4 is a front view showing the display device of FIG. 3,
FIG. 5 is a side view of the display device of FIG. 3,
6 is an enlarged sectional view showing an assembling structure of a display device according to an embodiment of the present invention,
Fig. 7 is a view showing a metal sheet as a main part of Fig. 4, and Fig.
8 is a view showing a back cover which is the main part of FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the present invention, the back cover, the metal sheet, and the display panel are sequentially connected. In the display device, the direction of the display panel is defined as the upper side or the front side with respect to the metal sheet, And the central area where the display panel or the back cover is coupled with respect to the edge of the metal sheet is defined as the inside and the outside area on the opposite side is defined as the outside.

FIG. 3 is an exploded perspective view showing a main configuration of a display device according to an embodiment of the present invention, and FIGS. 4 and 5 are a front view and a side view of the display device of FIG.

As shown in these drawings, the display device 100 of the present invention includes a display panel 110, a metal sheet 120 disposed behind the display panel 110, And a control panel 140 which is fastened to the back surface of the back cover 130. [

Here, the display panel 110 may be an image display device that displays an image from an external signal, for example, an organic light-emitting panel advantageous for slimming. The display panel 110 includes a front transparent electrode layer that is divided into a plurality of pixel regions on a transparent substrate, a light emitting layer that forms an RGB light emitting region corresponding to each pixel region, and a back electrode layer that is formed on the back surface of the light emitting layer. The transparent substrate is a base for forming a light emitting structure and has a minimum thickness capable of forming a light emitting layer. The display panel 110 may include various types of image display devices such as a liquid crystal panel and a plasma panel in addition to the organic light emitting panel.

The metal sheet 120 is formed in the form of a thin sheet of metal with a structure of supporting the display panel 110 while complementing the rigidity of the back cover 130 and decorating the rim of the display device 100. The metal sheet 120 is made of a high strength metal material to support the display panel 110 by reinforcing the back cover 130. Examples of the metal sheet 120 include aluminum (Al), magnesium (Mg), electrogalvanized steel sheet EGI: Electrolytic Galvanized Iron) or stainless steel (STS: Stainless Steel). The metal sheet 120 having the above-described material may be formed of a sheet having a thickness of approximately 0.3 mm to 1.0 mm.

The metal sheet 120 has a rectangular shape corresponding to the display panel 110. The metal sheet 120 is folded in the shape of '∩', and the display panel 110 is seated in the inner space of the front surface formed by the edge folding And the coupling ribs of the back cover 130 are inserted into the coupling grooves formed at the edges of the back surface. 4 and 5, the edge portions of the metal sheet 120 may form a front edge portion 120a and a side edge portion 120b to improve the edge appearance of the display device 100. Referring to FIG. At this time, in order to further improve the appearance of the display device, the metal sheet 120 may be subjected to various decorative treatments such as color coating on the surface (especially, the edge surface).

The back cover 130 is coupled to the back surface of the metal sheet 120 to support the display panel 110 together with the metal sheet 120 so that the display device 100 can be stably installed in an external structure (not shown) such as a wall surface or a bracket To be fixed. The back cover 120 is made of a high strength metal material so as to stably support the display panel 110. For example, the back cover 120 may be made of the same material as the metal sheet 120, such as aluminum (Al), magnesium (Mg) A steel sheet (EGI), or stainless steel (STS). At this time, the back cover 130 and the metal sheet 120 may be made of the same material or may be composed of different materials, and the back cover 130 may be formed of a plate having a thickness of about 0.6 mm to 1.2 mm .

In addition, the back cover 130 has a rectangular shape corresponding to the display panel 110, and in particular, a bent portion having an edge bent in an 'L' shape is formed. The back cover 130 is coupled to the back surface of the metal sheet 120 while being inserted into the fastening groove of the metal sheet 120 by the vertically connecting ribs of the edges formed by bending.

The control panel 140 is coupled to the back surface of the back cover 130 to control the driving of the display panel 110 and includes a driving substrate (not shown). The driving board of the control panel 140 is connected to the front display panel 110 along a guide hole formed in the back cover 130 and the metal sheet 120 through a FFC (Flat Flexible Cable) or the like.

The display device 100 having the above-described structure is constructed such that the metal sheet 120 intervenes between the display panel 110 and the back cover 130 to reinforce the rigidity of the back cover 130 supporting the display panel 110 And the metal sheet 120 and the back cover 130 can be decorated at the edge of the display device by being bent at the edges to facilitate the connection. Hereinafter, a specific structure of the metal sheet and the back cover and a coupling structure of the display device will be described in detail.

FIG. 6 is a cross-sectional view illustrating an assembling structure of a display device according to an embodiment of the present invention, and FIG. 7 and FIG. 8 are cross-sectional views taken along the line II- Fig.

6, the display device of the present invention has a structure in which a display panel 110 is coupled to a front surface of a metal sheet 120, and a back cover 130 is coupled to a rear surface of the metal sheet 120. Particularly, in the display device 100 of the present invention, the metal sheet 120 and the back cover 130 have a structure in which edges are bent by a bending process. An adhesive foam pad or a magnetic pad 160 may be interposed between the display panel 110 and the metal sheet 120. An adhesive or a double-sided tape may be interposed between the metal sheet 120 and the back cover 130. [ The adhesive member 150 can be further intervened.

Specifically, as shown in FIGS. 6 and 7, the metal sheet 120 according to the embodiment of the present invention has a shape of '∩' in which edges are continuously bent upwardly, outwardly, and downwardly. The metal sheet 120 has a plate-like reinforcing surface 121, an inner surface 122 whose edge is primarily bent upward, a horizontal surface 121 that is secondarily bent outward horizontally from the end of the inner surface 122, (123) and an outer side surface (124) that is thirdly bent downward from an end of the horizontal surface (123).

Here, the reinforcement surface 121 is a rectangular sheet, the display panel 110 is coupled to the front surface, the display panel 110 is supported, and the back surface is coupled with the back cover 130 to adjust the rigidity of the back cover 130 Reinforce. The inner side surface 122 is folded over the reinforcing surface 121 to form a space in which the display panel 110 is seated and protects the side surface of the display panel 110. The horizontal plane 123 forms a front edge portion of the display panel 110 (see 120a in FIG. 4) with a predetermined width at the same or slightly higher position as the front surface of the coupled display panel 110. [ The outer side surface 124 is formed at a predetermined spacing from the inner side surface 122 to form a side edge portion of the display panel 110 (see 120b in FIG. 5).

The metal sheet 120 is engaged with the back cover 130 at the back surface through the coupling groove 125 having a predetermined width between the inner side surface 122 and the outer side surface 124.

6 and 8, the back cover 130 according to the embodiment of the present invention has an L shape in which the edges are bent upward. The back cover 130 includes a plate-like support surface 131 and a fastening rib 132 whose edge is bent upward. Here, the support surface 131 is a rectangular plate that supports the display panel 110 together with the reinforcement surface 121 of the metal sheet 120, and the engagement rib 132 is formed at the edge of the support surface 131 And the back cover 130 is coupled to the metal sheet 120 while being bent upward.

In the back cover 130 having the above-described structure, the coupling ribs 132 at the edges are inserted into the coupling grooves 125 of the metal sheet 120. It is preferable that the width of the fastening groove 125 is smaller than the thickness of the fastening rib 132 so that the coupling between the fastening rib 132 and the fastening groove 125 can be stably maintained.

The metal sheet 120 and the back cover 130 may be further coupled to each other using an adhesive member 150. The adhesive member 150 may be formed of a metal sheet 120 and a back cover 130. [ 130 to further enhance the bonding force between the metal sheet 120 and the back cover 130. The adhesive member 150 may be composed of a metal sheet 120 and an adhesive applied to the surface of the back cover 130, or may be a double-sided tape.

7 and 8, the reinforcing surface 121 and the supporting surface 131 forming the bottom surface of the metal sheet 120 and the back cover 130 may be subjected to bending or stepping . Such bending or stepping may be performed by forming the irregularities on the bottom surface of the metal sheet 120 and the back cover 130 so that the reinforcing surface 121 of the metal sheet 120 and the supporting surface 131 of the back cover 130 It is possible to more stably support the display panel 110 by exhibiting excellent rigidity with respect to the bending property.

As described above, according to the display device of the present invention, since the metal sheet is interposed between the display panel and the back cover, the display panel can be stably supported even when the back cover of the single layer structure is applied, Thereby improving the appearance of the display device.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

100: display device
110: Display panel
120: metal sheet 121: reinforced side
122: inner side 123: horizontal plane
124: outer side surface 125: fastening groove
130: back cover
131: support surface 132: fastening rib
140: Control panel

Claims

The edge of the reinforcing face on the horizontal plate is continuously bent to the upper side, the outer side and the lower side, and the edge of the reinforcing face is first bent upward to form a space portion in which the display panel is seated on the reinforcing face And an outer surface forming a side edge portion by folding the end portion of the horizontal surface again downward to form an outer side surface, wherein the inner side surface and the inner side surface form an outer side surface, A metal sheet forming a fastening groove between the outer side surfaces;
A display panel coupled to the reinforcing surface in the space formed by the inner surface of the metal sheet; And
And a back cover coupled to the back surface of the metal sheet to support the display panel so as to form an 'L' -shaped engagement rib with the edge of the support surface on the plate being bent upward and the engagement rib to be inserted into the engagement groove Device.

delete

The metal sheet according to claim 1,
Wherein a coupling using an adhesive member interposed between the reinforcing surface and the supporting surface is further applied.

The method according to claim 1,
Wherein the reinforcing surface of the metal sheet or the supporting surface of the back cover is subjected to bending or stepping.