KR20060014713A - Display apparatus - Google Patents

Abstract

Disclosed is a display device for improving assemblability. The display device includes a storage container accommodating the display panel and a top chassis having a 'c' shape. The top chassis has an uneven portion for engaging with the storage container, and the storage container has a fastening groove corresponding to the uneven portion. The top chassis engages with the storage container as the uneven portion is slid into the fastening groove. Accordingly, since the display device can reduce the number of screws for assembling the parts, the assemblability can be improved and the cost of the product can be reduced.

Top chassis, assembly, rework

Description

Display device {DISPLAY APPARATUS}

1 is an exploded perspective view illustrating a liquid crystal display according to an exemplary embodiment of the present invention.

FIG. 2 is a perspective view illustrating the top chassis illustrated in FIG. 1.

3 is a plan view illustrating a coupling relationship between the top chassis and the second storage container illustrated in FIG. 1.

4 is a cross-sectional view taken along the line II ′ of FIG. 3.

<Description of the symbols for the main parts of the drawings>

100: display panel assembly 200: backlight assembly

210, 220: lamp unit 230: light guide plate

240: optical sheets 250: reflective sheet

260: third storage container 300: first storage container

400: second storage container 500: top chassis

600: display device

The present invention relates to a display device, and more particularly, to a display device for improving assemblability.

In general, a flat panel display displays an image corresponding to an image signal input from the outside. The flat panel display serves as an interface for the user to visually check the information processed by the information processing device.

A liquid crystal display is a type of flat panel display and displays an image by using optical characteristics of the liquid crystal. The liquid crystal display includes a liquid crystal display panel displaying an image, a backlight assembly providing light to the liquid crystal display panel, a first accommodating container accommodating the backlight assembly, a second accommodating container accommodating the liquid crystal display panel, and a top chassis.

A second accommodating container is provided above the backlight assembly, and a liquid crystal display panel is mounted on the second accommodating container. The top chassis is provided above the liquid crystal display panel. The top chassis is combined with the second container to prevent the liquid crystal display panel from being separated from the second container. The top chassis engages with the second storage container through screwing. A large number of screws are used in the combination of the top chassis and the second containment vessel, the use of which increases the manufacturing costs and increases the assembly time and the rework time.

SUMMARY OF THE INVENTION An object of the present invention is to provide a display device for improving assembly performance by shortening assembly time and rework time.

According to an aspect of the present invention, a display device includes a display panel, a storage container, and a top chassis.

The display panel receives light and displays an image. The storage container accommodates the display panel. The top chassis is provided above the display panel and is coupled to the storage container to fix the display panel to the storage container. The top chassis has a bottom plate positioned in an edge region of the display panel and a side plate extending from an edge of the bottom plate to surround a side of the display panel.

The bottom plate includes a first plate extending in a first direction, a second plate extending in a second direction orthogonal to each other from the first end of the first plate, and a second end of the first plate. And a third plate extending in the second direction so as to face the second plate from each other.

According to such a display device, since the top chassis having a 'c' shape can be coupled to the top chassis and the storage container in a sliding manner, the display device can reduce the number of screws and improve the assemblability. Rework can be made more convenient.

Hereinafter, with reference to the accompanying drawings, it will be described in detail the present invention.

1 is an exploded perspective view illustrating a liquid crystal display according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the liquid crystal display 600 according to the present invention includes a display panel assembly 100 displaying an image using light, a backlight assembly 200 generating the light, and the backlight assembly 200. The first storage container 300 to accommodate, the second storage container 400 for storing the display panel assembly 100 and the top chassis 500.

In more detail, the display panel assembly 100 includes a liquid crystal display panel 110 displaying a plurality of images, a plurality of data side and gate side tape carrier packages (TCP) 120, 125, and data. Side and gate side printed circuit boards (130, 135).

Specifically, the liquid crystal display panel 110 includes a thin film transistor substrate (TFT) 111, a color filter substrate 112 and a TFT substrate 111 that are coupled to face the TFT substrate 111. ) And a liquid crystal layer (not shown) injected between the color filter substrate 112.

The TFT substrate 111 is a transparent substrate on which a switching element TFT (not shown) is formed in a matrix form. The color filter substrate 112 provided to face the TFT substrate 111 is a transparent substrate in which a RGB color pixel, which is a color pixel expressing a predetermined color using the light, is formed by a thin film process.

The plurality of data side TCPs 120 are attached to the source side of the TFT substrate 111. The plurality of gate side TCPs 125 are attached to the gate side of the TFT substrate 111. The data side and gate side TCPs 120 and 125 apply a driving signal for driving the liquid crystal display panel 110 and a timing signal for controlling the driving timing to the liquid crystal display panel 110.

The plurality of data side and gate side TCPs 120 and 125 are connected to the data side and gate side printed circuit boards 130 and 135, respectively. The data side and gate side printed circuit boards 130 and 135 generate the driving signal and the timing signal and apply them to the plurality of data side and gate side TCPs 120 and 125, respectively.

The backlight assembly 200 is provided below the display panel assembly 100 to provide uniform light to the liquid crystal display panel 110.

The backlight assembly 200 uniformly adjusts the first and second lamp units 210 and 220 for generating the light, the light guide plate 230 for guiding the path of the light, and the luminance of the light emitted from the light guide plate 230. Optical sheets 240, a reflective sheet 250 for reflecting light leaked from the light guide plate 230, and a third storage container 260.

In detail, the first and second lamp units 210 and 220 are disposed at first and second side surfaces of the light guide plate 230 that face each other, and provide the light to the light guide plate 230.

In the present exemplary embodiment, the backlight assembly 200 includes two lamp units, but the number of lamp units may be reduced or increased according to the size of the liquid crystal display panel 100 and the type of lamp.

The first and second lamp units 210 and 220 have the same structure. A detailed description of the first and second lamp units 210 and 220 will be taken as an example of the first lamp unit 210, and the description of the second lamp unit 220 will be omitted.

The first lamp unit 210 receives a plurality of first lamps 211 and the light incident from the plurality of first lamps 211 to generate the light in response to a power supplied from the outside of the light guide plate 230. And a first lamp reflector 212 for providing to the side.

The plurality of first lamps 211 is connected to an external power supply device (not shown) to generate the light as the power is applied. The number of first lamps may be increased or decreased according to the size of the liquid crystal display panel 110, and the first lamp unit 210 includes at least one first lamp.

The first lamp reflector 212 surrounds a portion of the plurality of first lamps 211 and extends in a length direction of the plurality of first lamps 211. The first lamp reflector 212 is opened at the light guide plate 230 side. The first lamp reflector 212 reflects light incident from the plurality of first lamps 211 to the light guide plate 230 to improve light utilization efficiency.

The light guide plate 230 is positioned under the liquid crystal display panel 110 and is disposed between the first and second lamp units 210 and 210. The light guide plate 230 changes the path of the light incident from the first and second lamp units 210 and 220 and exits the liquid crystal display panel 110.

The optical sheets 240 are interposed between the light guide plate 230 and the liquid crystal display panel 110. The optical sheets 240 provide the liquid crystal display panel 110 by improving the characteristics of the light incident from the light guide plate 230, for example, increasing brightness and uniformity of brightness.

The reflective sheet 250 is provided under the light guide plate 230. The reflection sheet 250 reflects the light incident from the light guide plate 230 back to the light guide plate 230 to improve light utilization efficiency.

The third storage container 260 is provided below the reflective sheet 250. The third accommodating container 260 sequentially accommodates the reflective sheet 250, the light guide plate 230, and the optical sheets 240. The third accommodating container 260 is made of a hard metal material such as aluminum to emit heat generated from the first and second lamp units 210 and 220 to the outside.

The backlight assembly 200 is accommodated in the first accommodating container 300. A portion of the bottom surface of the first accommodating container 300 is opened, and the first accommodating container 300 is made of synthetic resin. The first accommodating container 300 supports the edge area of the third accommodating container 260 to prevent the backlight assembly 200 from twisting.

The second accommodating container 400 is provided between the liquid crystal display panel 110 and the backlight assembly 200. The second accommodating container 400 opens the liquid crystal display panel 110 from an edge of the bottom surface 410 and the bottom surface 410 of which the portion is opened to transmit the light provided from the backlight assembly 200. It has a side wall 420 extended to form a receiving space for receiving. The bottom surface 410 is formed with first and second fastening grooves 41 and 42 for coupling with the top chassis 500. The second accommodating container 400 is coupled to the first accommodating container 300 so as to face each other to fix the backlight assembly 200 to the first accommodating container 300.

The top chassis 500 is provided on the liquid crystal display panel 110. The top chassis 500 covers the liquid crystal display panel 110 so as to open the effective display area in which the image is displayed, and is coupled to the second storage container 400. The top chassis 500 guides the position of the liquid crystal display panel 110 and fixes the liquid crystal display panel 110 to the second storage container 400.

Specifically, the top chassis 500 has a '' 'shape. The top chassis 500 includes a bottom plate 510 contacting the bottom surface 410 of the storage container 300 and a side plate 520 extending from the edge of the bottom plate 510 toward the second storage container 300. It includes.

The bottom plate 510 has first and second uneven parts 51 and 52 for engaging with the second storage container 300. The first and second uneven parts 51 and 52 correspond to the first and second fastening grooves 41 and 42, respectively. The top chassis 500 may include the second storage container 300 as the first and second uneven parts 51 and 52 are slid into and inserted into the first and second fastening grooves 41 and 42, respectively. To combine.

FIG. 2 is a perspective view illustrating the top chassis illustrated in FIG. 1.

1 and 2, the top chassis 500 is made of a metal material. The first uneven portion 51 and the second uneven portion 52 have the same shape and are positioned to face each other. The first concave-convex portion 51 is formed integrally with the bottom plate 510, is recessed downward from an upper surface of the bottom plate 510, and has a stripe shape. The recessed shape of the first concave-convex portion 51 may be variously formed in a square shape, a semicircle shape, a triangular shape, or the like.

3 is a plan view illustrating a coupling relationship between the top chassis and the second storage container illustrated in FIG. 1.                     

1 and 3, the bottom plate 510 of the top chassis 500 extends in a first direction D1 and a first end 511 and a first end of the first plate 511. A second plate 512 formed extending from the second direction D2 orthogonal to the first direction D1, and from the second end of the first plate 511 to the second plate 512. The third plate 513 extends in the second direction D2 to face each other.

The first uneven portion 51 is formed on the second plate 512, and the second uneven portion 52 is formed on the third plate 513. In this case, the first and second uneven parts 51 and 52 extend in the second direction.

In the bottom surface 410 of the second storage container 400, the first fastening groove 41 is formed in an area corresponding to the second plate 512, and an area corresponding to the third plate 513. The second fastening groove 42 is formed in the.

The top chassis 500 includes the second housing as the first and second uneven parts 51 and 52 slide in the second direction and are inserted into the first and second fastening grooves 41 and 42, respectively. Combine with container 400. Accordingly, the number of screws for coupling the top chassis 500 and the second storage container 400 can be reduced, thereby reducing the production cost of the product and reducing the total weight of the liquid crystal display device 600. Can be reduced, and assembly time can be shortened.

In addition, when the liquid crystal display device 600 is reworked, the top chassis 500 may be quickly separated from the second storage container 400.

In the present embodiment, the first and second uneven parts 51 and 52 are formed on the bottom plate 510, but the first and second uneven parts 51 and 52 may be formed on the side plate 520. It may be. When the first and second uneven parts 51 and 52 are formed in the side plate 520, the first and second fastening grooves 41 and 42 may also have sidewalls 400 of the second storage container 400. Is formed.

The side plates 520 of the top chassis 500 are further provided with first and second screws 61 and 62 to further improve the coupling force between the top chassis 500 and the second storage container 400. The first and second screws 61 and 62 are located at both end sides of the side plate 520.

4 is a cross-sectional view taken along the line II ′ of FIG. 3.

Referring to FIG. 4, the light guide plate 230 and the optical sheets 240 are sequentially mounted on the third storage container 260. The third storage container 260 is accommodated in the first storage container 300, and the bottom surface 410 of the second storage container 400 is seated on the optical sheets 240.

The second fastening groove 42 is formed on the bottom surface 410 of the second storage container 400. The second fastening groove 42 has the same shape as the second uneven portion 52. The side wall 420 of the second storage container 400 surrounds the outer wall of the first storage container 300. A coupling hole 43 for inserting the second screw 62 is formed in the side wall 420 of the second storage container 400.

The liquid crystal display panel 110 is mounted on the second accommodating container 400, and the top chassis 500 is mounted on the liquid crystal display panel 110. The second uneven portion 52 formed in the third plate 513 of the top chassis 500 is inserted into the second fastening groove 42. The side plate 520 of the top chassis 500 surrounds the outer wall 420 of the second storage container 400. The side plate 520 has a fastening hole 53 corresponding to the coupling hole 43 is formed.

The second screw 62 is fastened to the coupling hole 43 by passing through the coupling hole 53.

As described above, the liquid crystal display according to the present invention includes a top chassis having a 'c' shape. The top chassis has first and second uneven portions for engaging with the second storage container, and the second storage container has first and second fastening grooves corresponding to the first and second uneven portions, respectively. The top chassis engages with the second storage container as the first and second uneven portions are slid into and inserted into the first and second fastening grooves, respectively. Accordingly, the liquid crystal display can reduce the number of screws for coupling the top chassis and the second storage container, thereby reducing the cost of the product, improving the assemblability, and reducing the overall weight of the liquid crystal display. Can be reduced.

In addition, the liquid crystal display can quickly detach the top chassis from the second storage container during rework, thereby reducing the rework time.

Although described above with reference to the embodiments, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below. I can understand.

Claims (6)

A display panel configured to receive light and display an image; A storage container accommodating the display panel; And And a bottom plate disposed on an upper side of the display panel, the bottom plate positioned in an edge region of the display panel, and a side plate extending from an edge of the bottom plate to surround a side of the display panel. A top chassis fixing the to the storage container, The bottom plate is, A first plate extending in a first direction; A second plate extending from a first end of the first plate in a second direction perpendicular to the first direction; And And a third plate extending in the second direction so as to face the second plate from the second end of the first plate. The method of claim 1, wherein the top chassis has an uneven portion for engaging with the storage container, the storage container has a fastening groove corresponding to the uneven portion, And the top chassis is coupled to the storage container as the uneven portion is slidably inserted into the fastening groove. The display device of claim 2, wherein the uneven portion is integrally formed with the second and third plates, and is recessed downward from an upper surface of the second and third plates. The display device of claim 2, wherein the uneven portion extends in the second direction. The display device of claim 2, wherein the uneven portion is integrally formed with the side plate and is recessed downward from an upper surface of the side plate. According to claim 1, wherein the top chassis is located at both ends of the side plate has a fastening hole for coupling with the storage container, the storage container has a coupling hole corresponding to the fastening hole, And the top chassis is coupled to the storage container by a screw that passes through the coupling hole and is coupled to the coupling hole.

Images