KR20080000407A - Liquid crystal display device - Google Patents

Abstract

An LCD is provided to house an LCD panel and a backlight assembly in a single case to simplify the assembling process and shorten the assembling time, thereby improving the productivity. A backlight assembly supplies light an LCD panel(100). A unification type case(200) houses the LCD panel and the backlight assembly therein. An opening portion(210), within which the LCD panel and the backlight assembly are housed, is formed at one side of the case. A separate lid(230) is joined to the case correspondingly to the opening portion. Fixing holes are formed in a front surface and a lateral surface of the case adjacently to the opening portion. Hooks are formed at the lid, and joined to the fixing holes.

Description

Liquid crystal display {LIQUID CRYSTAL DISPLAY DEVICE}

1 is a view showing a liquid crystal display device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the liquid crystal display taken along the line II ′ of FIG. 1.

3A and 3B are detailed views illustrating a case in which the case and the liquid crystal panel of region A of FIG. 1 are assembled;

4 is a perspective view illustrating a liquid crystal display according to another exemplary embodiment of the present invention.

FIG. 5 is a detailed view of the liquid crystal display shown in region B of FIG. 4. FIG.

* Description of the symbols for the main parts of the drawings

200, 300: case 201: guide groove

203, 303: fixing hole 210: opening

230, 330: Lead 231: Home

233, 333 hook 350: hinge portion

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device that can improve productivity by applying an integrated case that can simplify the assembly process.

CRT (Cathode Ray Tube), one of the widely used display devices, is mainly used for monitors such as TVs, measuring devices, information terminal devices, etc., but due to the weight and size of the CRT itself, the miniaturization and weight reduction of electronic products Could not actively respond to the response.

As a solution to this problem, the liquid crystal display device has an advantage that it is possible to realize a light and short and small power consumption compared to the CRT. In particular, liquid crystal displays using thin film transistors have been used in various fields in the notebook PC and monitor market as well as in recent years since they have achieved high quality, large size, and color display screen comparable to CRTs.

Such a liquid crystal display device includes a liquid crystal panel for displaying an image, a driving circuit substrate for driving the liquid crystal panel, and a backlight assembly for providing light. It is attached to the back of the backlight assembly, and is electrically connected to the liquid crystal panel by a tape carrier package (TCP).

The backlight assembly is accommodated in a bottom cover having an upper surface opened, and a liquid crystal panel is mounted on the backlight assembly. The top case of a shape surrounding the edge of the liquid crystal panel is seated on the liquid crystal panel and fastened to the bottom cover.

As described above, the conventional liquid crystal display device has a complicated structure of assembling a backlight assembly, mounting a liquid crystal panel on the backlight assembly, and then assembling a top case and a bottom cover. There was a problem. In addition, the driving circuit board is grounded by the top case or the bottom cover and the conductive adhesive tape, and the top case and the bottom cover are grounded by the conductive adhesive tape. The conductive adhesive tape causes poor adhesion during the assembly process, thereby causing a problem in grounding.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid crystal display device which can accommodate a liquid crystal panel and a backlight assembly in one case and simplify the assembly of the liquid crystal display device, thereby shortening the assembly time and improving productivity.

In addition, an object of the present invention is to provide a liquid crystal display device which can implement a stable ground ground by being integrally provided with a driving circuit board and a grounded case.

In order to achieve the above object, a liquid crystal display device according to an embodiment of the present invention,

A liquid crystal panel;

A backlight assembly providing light to the liquid crystal panel; And

And an integrated case accommodating the liquid crystal panel and the backlight assembly.

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

1 is a diagram illustrating a liquid crystal display device according to an exemplary embodiment of the present invention, and FIG. 2 is a cross-sectional view of the liquid crystal display device taken along the line II ′ of FIG. 1.

1 and 2, a liquid crystal display according to an exemplary embodiment of the present invention includes a liquid crystal panel 100 for displaying an image and a backlight assembly 120 for providing light to the liquid crystal panel 100. And a driving circuit board 110 driving the liquid crystal panel 100 and a case 200 accommodating the liquid crystal panel 100 and the backlight assembly 120.

The liquid crystal panel 100 includes a thin film transistor array substrate and a color filter substrate bonded together to maintain a uniform cell gap facing each other, and a liquid crystal layer interposed between the thin film transistor array substrate and the color filter substrate.

The backlight assembly 120 is disposed to form a light source 150 disposed on a side surface to emit light, a housing 140 provided to surround the light source 150, and a surface of the light source 150. Or a light guide plate 160 for converting point light into a surface light source, an optical sheet 180 disposed on the light guide plate 160 to collect and diffuse light, and a light guide plate 160 disposed on a rear surface of the light guide plate 160. It is configured to include a reflecting plate 170 for reflecting the light irradiated back to the light guide plate 160 direction.

The light source 150, the housing 140, the light guide plate 160, the optical sheets 180, and the reflector plate 170 are accommodated in the support main 130.

The support main 130 is formed of a mold to fix the light source 150, the housing 140, the light guide plate 160, the optical sheets 180, and the reflective plate 170 to prevent breakage due to friction. do.

The support main 130 is inserted into the case 200 from one side and fastened to the case 200 by a screw or the like.

The case 200 has a shape in which an upper surface thereof is opened so that the liquid crystal panel 100 and the backlight assembly 120 may be accommodated so that the case 200 is empty.

The case 200 has an opening 210 formed at one side thereof to accommodate the liquid crystal panel 100, and includes a lead having a '230' shape which is fastened to correspond to the opening 210. do.

A guide groove 201 is formed on the inner wall of the case 200 to fix the liquid crystal panel 100 and prevent separation thereof.

Although not shown in detail on the guide groove 201, when the liquid crystal panel 100 is inserted, a protective tape (not shown) may be attached to prevent breakage and scratches caused by friction.

One side of the lead 230 is the TCP 115 so that the driving circuit board 110 connected by the liquid crystal panel 100 and the TCP (tape carrier package: 115) can be seated on the back of the case 200. The groove 231 is formed in the disposed area.

The case 200 may be coupled by a hook method for rapid assembly of the opening 210 and the lid 230. That is, a fixing hole (not shown) may be formed around an area where the opening 210 is formed, and a hook may be formed in the lead 230 corresponding to the fixing hole, and conversely, a hook may be formed around the opening 210. The fixing hole may be formed in the lead 230.

The assembly of the opening 210 and the lead 230 of the case 200 as described above will be described in detail with reference to FIGS. 3A and 3B.

The liquid crystal panel 100 is inserted into the guide groove 201 of the case 200 by sliding or the like. In this case, the liquid crystal panel 201 may cause breakage and scratching of the edge by friction with the guide groove 201. In order to prevent such damage and scratch of the liquid crystal panel 100, a protective tape may be attached to the guide groove 201, and the insertion process of the liquid crystal panel 100 may be performed by applying sophisticated automation equipment. .

In the assembling process of the liquid crystal display device, first, the liquid crystal panel 100 is inserted into the case 200, and the opening 210 and the lead 230 of the case 200 are coupled to each other in a hook manner. The assembly process of the display device is completed.

Therefore, the liquid crystal display according to the exemplary embodiment of the present invention accommodates the liquid crystal panel 100 and the backlight assembly 120 in one case 200 and combines them using the lead 230, thereby simplifying the assembly process. By assembling time can be shortened to improve productivity.

In addition, the present invention is a case 200 having a structure in which a conventional top case and a bottom cover are integrally formed, and a conductive adhesive tape provided to electrically connect the top case and the bottom cover to ground and ground of the driving circuit board. This eliminates cost savings and ensures stable grounding.

3A and 3B are detailed views illustrating a case in which the case of the region A of FIG. 1 and the liquid crystal panel are assembled.

As shown in FIGS. 3A and 3B, the liquid crystal display according to the exemplary embodiment may include an integrated case 200 accommodating the liquid crystal panel 100 and the backlight assembly 120, and the case 200. It includes a lead 230 is coupled to the opening (210 in Figure 1) formed on one side.

Guide grooves 201 are formed in the inner surface of the case 200, and fixing holes 203 are formed in the front edges and side surfaces of the case 200 around the opening 210.

In the lead 230 coupled to the opening 210 of FIG. 1, a hook 233 is formed in an area corresponding to the fixing hole 2203.

The liquid crystal panel 100 is inserted into the guide groove 201 in a sliding form, and after the liquid crystal panel 100 is inserted, the hook 233 of the lead 230 is fastened to the fixing hole 203. Completing the assembly process of the liquid crystal display device according to an embodiment of the present invention.

3A and 3B, a fixing hole 203 is formed around an opening (210 of FIG. 1) of the case 200, and a hook 233 is formed in the lead 230 in an area corresponding to the fixing hole 20. ), But not limited thereto, and a hook (not shown) is formed in the case 200 around the opening 210 (see FIG. 1), and a fixing hole may be formed in the lead 230.

The liquid crystal display according to the exemplary embodiment of the present invention described above has a structure capable of accommodating the liquid crystal panel 100 and the backlight assembly 120 in one case 200, thereby simplifying the assembly process of the liquid crystal display. As a result, the assembly time can be shortened to improve productivity. In addition, the present invention is a case 200 of a structure in which a conventional top case and a bottom cover are integrally formed, and the conductive adhesive tape provided to electrically connect the top case and the bottom cover to the ground of the driving circuit board is removed. This reduces material costs and ensures stable ground grounding.

4 is a perspective view of a liquid crystal display according to another exemplary embodiment of the present invention, and FIG. 5 is a detailed view of the liquid crystal display of FIG.

4 and 5, the liquid crystal display according to another exemplary embodiment of the present invention may include a case 300 among components of the liquid crystal display according to the exemplary embodiment of the present invention illustrated in FIGS. 1 to 3B. Except for the other components are the same as the same reference numerals and detailed description will be omitted.

The case 300 is opened to accommodate the liquid crystal panel 100 and the backlight assembly 120 at one side thereof, and the opened region is provided with a folding lead 330. The lid 330 is connected to the case 300 by a hinge 350 to open and close the lid 330.

A fixing hole 303 is formed at a side surface of the case 300, and a hook 333 is formed at the folding lead 330 to be fastened to the fixing hole 303.

The position where the fixing hole 303 and the hook 333 are formed may be changed as much as the assembly is easy.

In the liquid crystal display according to the exemplary embodiment described above, the liquid crystal panel 100 and the backlight assembly 120 are accommodated in the case 300 by sliding or the like. By assembling the hook 333 and the fixing hole 303 of the case 300, the assembly of the liquid crystal display device is completed.

Accordingly, the liquid crystal display according to another embodiment of the present invention has a structure in which the liquid crystal panel 100 and the backlight assembly 120 are accommodated in one case 300, thereby simplifying the assembly process, thereby reducing the assembly time and improving productivity. Can be improved.

In addition, the present invention is a case 300 having a structure in which a conventional top case and a bottom cover are integrally formed, and the conductive adhesive tape is provided to electrically connect the top case and the bottom cover to ground the ground of the driving circuit board. This reduces material costs and ensures stable ground grounding.

As described above, the present invention has an effect of simplifying the assembly of the liquid crystal display by accommodating the liquid crystal panel and the backlight assembly in one case, thereby shortening the assembly time and improving productivity of the liquid crystal display.

In addition, the present invention is provided with a case in which the driving circuit board and the ground ground is integrally formed, it is possible to implement a stable ground ground.

Those skilled in the art through the above description will be capable of various changes and modifications without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (10)

A liquid crystal panel; A backlight assembly providing light to the liquid crystal panel; And And an integrated case accommodating the liquid crystal panel and the backlight assembly. The method of claim 1, An opening for receiving the liquid crystal panel and the backlight assembly is formed at one side of the case, and includes a separate lid coupled to the case corresponding to the opening. The method of claim 1, An opening is formed at one side of the case to accommodate the liquid crystal panel and the backlight assembly, and includes a folding lead provided on the opening. The method of claim 2, A fixing hole is formed in the front and side surfaces of the case around the opening, and the lead is formed with a hook that is engaged with the fixing hole. The method of claim 2, A hook is formed on the front and side surfaces of the case around the opening, and the lead is formed with a fixing hole to which the hook is fastened. The method of claim 3, wherein And the folding lead is connected to the case by a hinge part to open and close the case. The method of claim 3, wherein A fixing hole is formed at a side of the case, and a hook is formed at one side of the foldable lead to the fixing hole. The method of claim 3, wherein A hook is formed on a side of the case, and a fixing hole is formed on one side of the foldable lead to the hook. The method of claim 1, And a guide groove formed on an inner side surface of the case to fix the liquid crystal panel and prevent separation thereof. The method of claim 9, And a protective tape on the guide groove to prevent breakage due to friction between the case and the liquid crystal panel.

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