KR101749712B1 - Middle cabinet for display apparatus - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a middle cabinet for a display device interposed between a display panel and a back cover to protect and decorate an edge of a display device, ; A protrusion protruding inward of the outer edge; A panel mounting part on which a display panel is mounted on one side of the protrusion; And a back cover supporting part for supporting the back cover on the other side of the projecting part.
According to the present invention having the above-described structure, the middle cabinet constituting the display device is manufactured by injection molding using plastic, thereby reducing the manufacturing cost of the display device.

Description

[0001] MIDDLE CABINET FOR DISPLAY APPARATUS [0002]

The present invention relates to a display device, and more particularly, to a middle cabinet for a display device interposed between a display panel and a back cover to protect and decorate the edges of the display device.

BACKGROUND ART [0002] Generally, a display device is a device for receiving and displaying a video signal, and includes a television and a monitor. Examples of the display device include an organic light emitting device (OLED), a liquid crystal display Display Device), and Plasma Display Panel (PDP).

In recent years, as the information society has developed, demands for display devices have increased in various forms, and attempts have been made to improve the structure of existing display devices and to simplify them. In recent years, efforts have been made to reduce the thickness of a display device. In recent years, a liquid crystal panel has been replaced with an organic light emitting (OLED) panel as an image display means, so that a backlight unit is removed, .

1 is an exploded perspective view showing a schematic configuration of a display device. 1, the display device 10 includes a display panel 11, a back cover 12, and a middle cabinet 13, and the back cover 12, A control panel 14 and a shield cover 15 for protecting the control panel 14 are coupled to each other.

Here, the display panel 11 is configured to display an image according to a signal of the control panel 14, and various types of display means such as an organic light emitting panel and a liquid crystal panel can be used. The back cover 12 is made of a plate having sufficient rigidity to support the display panel 11. For example, the back cover 12 is made of a high strength aluminum composite material (ACM: Aluminum Composite Material ) May be used. The display panel 11 and the back cover 12 are tightly adhered to each other by an adhesive means using a double-sided tape or a magnetic pad. The middle cabinet 13 is assembled along the edges of the display panel 11 and the back cover 12 to protect and decorate the edges of the display device 10.

Meanwhile, in the display device according to the related art, the middle cabinet is formed of a metal frame made of an aluminum material manufactured by extrusion processing. These middle cabinets protect the edge of the display device and decorate the edge area with brilliant color. The extruded aluminum middle cabinet does not show luster and thus limits the appearance of the display. Therefore, the aluminum cabinets are made of nickel chrome by plating them separately on the surface to improve the appearance.

As described above, the middle cabinet according to the prior art uses a high-priced aluminum and a plating process is applied to the surface in order to improve the appearance, so that a manufacturing cost of a display device is reduced due to a high material cost and a plating process. .

Korean Registered Patent No. 10-1472340 (display device, registration notice on December 15, 2014)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a middle cabinet for a display device capable of reducing manufacturing cost by manufacturing a middle cabinet by injection molding using a plastic material.

Another object of the present invention is to provide a middle cabinet for a display device which improves the appearance at low cost by manufacturing a middle cabinet by a steam injection process.

Yet another object of the present invention is to provide a middle cabinet for a display device which exhibits sufficient rigidity by manufacturing a middle cabinet by a double injection process using a metal frame as insert water.

According to an aspect of the present invention, there is provided a middle cabinet for a display device, including: an outer edge portion covering a rim of a display device; A protrusion protruding inward of the outer edge; A panel mounting part on which a display panel is mounted on one side of the protrusion; And a back cover supporting part for supporting the back cover on the other side of the projecting part.

In addition, the middle cabinet for a display device may further include a metal insert formed on at least one side of the protrusion.

Here, the insert portion is bonded to the plastic injection-molded body by a double-sided tape or is produced together with the plastic injection-molded body by double injection.

In addition, the plastic injection-molded article may be formed of a square frame or a frame having one side opened, and is formed by steam injection.

According to the present invention having the above-described structure, the middle cabinet constituting the display device is manufactured by injection molding using plastic, thereby reducing the manufacturing cost of the display device.

In addition, the present invention can decorate the appearance of a display device at low cost by manufacturing a middle cabinet by steam injection using plastic.

In addition, the middle cabinet of the present invention has a double structure in which a metal material and a plastic material are mixed, so that the display panel and the back cover can be supported with high rigidity.

1 is an exploded perspective view showing a schematic configuration of a display device,
2 is an exploded perspective view showing a display device according to an embodiment of the present invention,
FIG. 3 is a perspective view of a middle cabinet, which is the main part of FIG. 2,
FIG. 4 is a vertical sectional view showing an example of a detailed structure of the middle cabinet of FIG. 2;
Fig. 5 is a longitudinal sectional view showing another example of the detailed structure of the middle cabinet of Fig. 2, and Fig.
6 is an exploded perspective view illustrating a display device according to another embodiment of the present invention.

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.

2 is an exploded perspective view showing a display device according to an embodiment of the present invention. 2, the display device 100 includes a display panel 110, a middle cabinet 120, and a back cover 130, which are sequentially assembled, and a back panel 130, 140 and the shield cover 150 are fastened together.

Here, the display panel 110 is an image display device that displays an image from an external signal, and may be an organic light-emitting panel, for example. 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 middle cabinet 120 is interposed between the display panel 110 and the back cover 130 to form the rim of the display device while maintaining the tightness of the engagement in the edge area. The middle cabinet 120 has a square frame shape corresponding to the edge shape of the display panel 110 and the back cover 130. The middle cabinet 120 of the present invention may be formed by injection molding of a plastic resin. In particular, the middle cabinet 120 is formed by steam-molding so as to decorate the outer appearance of the display device 100 . The middle cabinet 120 will be described in detail later.

The back cover 130 is coupled to the back surface of the display panel 110 to support the display panel 110 so that the display device 100 can be stably fixed to an external structure (not shown) such as a wall surface or a bracket. In addition, the back cover 130 engages a control panel 140 driving the display device on the rear surface. The back cover 130 is made of a high strength composite material such as an aluminum resin composite material so as to stably support the display panel 110. The back cover 130 made of an aluminum resin composite material (ACM) exhibits excellent rigidity even with a thin thickness, which is easy to lighten and slim down the display device, and particularly shows an advantage of easy processing for a curved surface shape.

The display panel 110 and the back cover 130 are assembled to each other via the middle cabinet 120. That is, the display panel 110 is coupled to the front surface of the middle cabinet 120, and the back cover 130 is coupled to the rear surface. At this time, the display panel 110 and the back cover 130 are bonded to the middle cabinet 120 through the double-faced tape in the edge area, and are directly bonded through the magnetic pad in the center area.

A control panel 140 is coupled to the back surface of the back cover 130 as a device for driving the display device 100 and the control panel 140 is protected by a shield cover 150. [

FIG. 3 is a perspective view illustrating a middle cabinet of FIG. 2, and FIG. 4 and FIG. 5 are vertical cross-sectional views illustrating various examples of the detailed structure of the middle cabinet of FIG. 2, . As shown in these drawings, the middle cabinet 120 according to the embodiment of the present invention is configured to have a rectangular frame shape so that the display panel and the back cover are coupled to the front and back surfaces, respectively, while forming the outer frame of the display device.

4, the middle cabinet 120 includes an outer edge portion 121 constituting the edge of the display device and a projecting portion 122 projecting inward of the outer edge portion 121, (122) has a panel seating portion (123) on one side where the display panel is seated and a back cover support portion (124) on the other side where the back cover is supported.

The outer edge portion 121 has a rectangular frame shape having a predetermined width w and thicknesses t1 and t2 and is formed to have a minimum thickness for weight reduction. At this time, since the gate to which the resin is injected is secured in the middle cabinet 120 formed by injection molding, one side where the gate is formed has a relatively thick inclined structure (t2 > t1).

The protrusion 122 protrudes inward from the center in the width direction of the outer edge portion 121. The front surface defines a panel seating portion 123 on which the display panel 110 is seated, The back cover support portion 124 is formed. The protrusion 122 protrudes to a predetermined length so that the display panel 110 and the back cover 130 can be stably engaged.

The middle cabinet 120 of the present invention has a T shape in cross section due to the outer edge portion 121 and the projecting portion 122, and is formed by injection molding using a plastic resin. As the plastic resin, a mixed material of PC (Polycarbonate) resin and ABS (Acrylonitrile Butadiene Styrene) resin may be used. In addition, the middle cabinet 120 is formed by steam injection molding so that the cabinet itself can decorate the outer appearance of the display device 100. The middle cabinet 120 is formed by rapidly heating the mold to a temperature of 120 ° C or higher and rapidly cooling the mold with cold water. The middle cabinet 120 manufactured by steam injection shows a high-gloss surface even if plastic material is used, without the post-processing such as painting or plating, and the weld line due to injection does not appear, have.

Meanwhile, as shown in FIG. 5, the middle cabinet 120 of the present invention may further include an insert portion 125. The width and the thickness of the middle cabinet 120, which is a plastic injection molded body, are gradually thinned as the display device becomes lightweight and slim. Therefore, when the middle cabinet 120 is made of only plastic material, the rigidity of the middle cabinet 120 may be somewhat weakened, so that the insert portion 125 functions to compensate the rigidity of the middle cabinet 120. The insert part 125 is made of a metal material having high rigidity, and may be formed of an electro galvanized iron (EGI), for example.

The insert part 125 is formed at the connection part between the outer edge part 121 and the protrusion part 122 as shown in the figure. That is, the insert part 125 may be formed on one of the inner surface of the outer edge part 121 and the protruding part 122 (i.e., the panel mounting part or the back cover supporting part) and may be formed on both sides of the protruding part 122 .

In addition, the insert part 125 can be formed at the same time during the injection molding of the middle cabinet 120 using plastic resin. That is, the middle cabinet 120 integrated with the insert part 125 can be manufactured by injection molding a plastic resin with the metal insert part 125 as an insert object. Further, the insert portion 125 may be manufactured separately from the plastic injection-molded body and adhered to the plastic injection-molded body. At this time, a double-sided tape is used as a means for adhering an insert part made of a metal material and an injection-molded article made of a plastic material.

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

In the display device according to another embodiment of the present invention, the middle cabinet 120 is formed of a frame having one side opened. That is, as shown in the drawing, the middle cabinet 120 is opened downward, and a driving module (not shown) for driving the display device may be coupled to the side of the opened middle cabinet 120.

The middle cabinet 120 having one side removed from the side has the elasticity. The elasticity of the middle cabinet 120 is advantageous for the cigarette lid assembly with the display panel 110 and the back cover 130, . In addition, the 'C' shaped middle cabinet 120 has an advantage of greatly improving dimensional matching according to the sizes of the display panel 110 and the back cover 130.

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.

110: Display panel
120: middle cabinet 121:
122: projection part 123: panel seating part
124: back cover supporting part 125: insert part
130: back cover
140: Control panel
150: Shield cover

Claims (5)

A plastic injection molded product formed by steam injection, comprising: an outer edge portion covering an edge portion of a display panel and a back cover; and a protruding portion protruding inward of the outer edge portion,
Wherein the protruding portion is provided with a panel mounting portion on which a display panel is mounted on one side and a back cover supporting portion on the other side is supported,
A middle cabinet for a display device interposed between a display panel and a back cover to form an outer appearance of the edge of the display device while coupling the display panel and the back cover. The method according to claim 1,
And a metal insert portion formed at a connection portion between the outer edge portion and the protrusion portion on at least one side of the protruding portion. delete The injection molding machine according to claim 1 or 2, wherein the plastic injection-
Shaped frame or a frame having one side opened.
delete

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