KR20060057188A - Display apparatus - Google Patents

Abstract

Disclosed is a display device capable of improving assembly. The display device includes a storage container for storing the display panel and guiding its position. The side wall of the storage container includes an upper surface which covers a predetermined area of the display panel and fixes the position of the display panel. Accordingly, the liquid crystal display does not need to include a top chassis for guiding the position of the display panel, so that the number of assembly parts can be reduced and the assemblability can be improved.

Top chassis, storage container

Description

Display device {DISPLAY APPARATUS}

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

2 is a perspective view showing the storage container shown in FIG.

3 is a cross-sectional view taken along the line II ′ of FIG. 2.

4 is a cross-sectional view taken along the line II-II ′ of FIG. 1.

5 is a perspective view of the clip shown in FIG.

FIG. 6 is a cross-sectional view taken along line III-III ′ of FIG. 1.

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

100: display panel assembly 110: liquid crystal display panel

130, 135: fixed film 200: backlight assembly

210, 220: lamp unit 230: light guide plate

240: optical sheets 250: reflective sheet

300: storage containers 410, 420, 430, 440: clips

600: liquid crystal display device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly, to a display device capable of improving assemblability.

In general, a liquid crystal display that displays an image in response to an image signal input from the outside is a type of flat panel display and displays an image by using optical characteristics of the liquid crystal.

The liquid crystal display device includes a liquid crystal display panel that displays an image using light and a backlight assembly that provides light to the liquid crystal display panel. The liquid crystal display panel and the backlight assembly are sequentially received in the storage container. A top chassis for fixing the liquid crystal display panel to the storage container is provided on the upper portion of the liquid crystal display panel.

In general, an assembly process of accommodating the liquid crystal display panel and the backlight assembly in a storage container and coupling the top chassis to the storage container is performed manually. Therefore, the larger the number of assembly parts, the higher the assembly time and manufacturing cost of the liquid crystal display device.

An object of the present invention is to provide a display device that can improve the assembly by reducing the number of assembly parts.

A display device according to one aspect for realizing the above object of the present invention comprises a display panel and a storage container.

The display panel displays an image using light provided from the outside. The storage container accommodates the display panel and guides the position of the display panel.                     

According to such a display device, since the position of the display panel can be fixed without using the top chassis by using the storage container, the number of assembly parts can be reduced.

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 a temporary 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 display panel assembly 100. And a storage container 300 for storing the backlight assembly 200, and a plurality of clips for fixing the display panel assembly 100 to the storage container 300.

In more detail, the display panel assembly 100 includes a liquid crystal display panel 110 that displays the image in response to an image signal as the light is input, and a plurality of data-side tape carrier packages (hereinafter, TCP). 120, the first and second fixing films 130 and 135 for fixing the position of the liquid crystal display panel 110, the plurality of gate side TCP 140, the data side printed circuit board 150, and the gate The side printed circuit board 160 is included.

The liquid crystal display panel 110 may include a thin film transistor substrate (hereinafter, referred to as TFT) 111, a color filter substrate 112 and a TFT substrate 111 that are coupled to face the TFT substrate 111. It includes a liquid crystal layer (not shown) interposed between the color filter substrate 112.

The TFT substrate 111 includes a plurality of pixels (not shown) in a matrix form. Each pixel includes a gate line (not shown) extending in a first direction, a data line (not shown) extending in a second direction perpendicular to the first direction and intersecting the gate line, and a pixel electrode. do. Each pixel includes a TFT connected to the gate line and the data line to operate as a switch element.

The color filter substrate 112 is formed by a thin film process to express a predetermined color using the light, and an RGB color pixel (not shown), and a common electrode formed on the RGB color pixel to face the pixel electrode. It is provided.

The liquid crystal layer is interposed between the TFT substrate 111 and the color filter substrate 112. The liquid crystal layer is arranged in a specific direction by an electric field formed between the pixel electrode and the common electrode to adjust the transmittance of light provided from the backlight assembly 200.

The plurality of data side TCPs 120 and the first and second fixing films 130 and 135 are attached to the source side of the liquid crystal display panel 110.

The plurality of data side TCPs 120 are positioned between the first fixing film 130 and the second fixing film 135, and the liquid crystal display panel 110 and the data side printed circuit board 150 are disposed. Is electrically connected to the The data side TCP 120 receives the image signal from the data side printed circuit board 150 and transmits a driving signal for driving the liquid crystal display panel 110 and a timing signal for controlling the driving timing.

The first and second fixing films 130 and 135 are attached to the liquid crystal display panel 110 and the data side printed circuit board 150. The first and second fixing films 130 and 135 are positioned at both sides of the plurality of data side TCPs 120, that is, at corners of the liquid crystal display panel 110. The first and second fixing films 130 and 135 have coupling holes 130a and 135a for coupling with the storage container 300, and are combined with the storage container 300 to form the liquid crystal display panel 110. ) To fix the position.

The first and second fixing films 130 and 135 are preferably made of a flexible circuit board, but may be formed of the same material as the plurality of data side TCPs 120. In this case, the first and second fixing films 130 and 135 do not include wires or driving chips for transmitting and receiving electrical signals.

The plurality of gate side TCPs 140 are attached to the gate side of the liquid crystal display panel 110. The plurality of gate side TCPs 140 applies a driving signal for driving the liquid crystal display panel 110 and a timing signal for controlling a driving timing to the liquid crystal display panel 110.

The plurality of data side TCP 120 and the first and second fixing films 130 and 135 are connected to the data side printed circuit board 150, and the plurality of gate side TCP 140 is connected to the gate side. It is connected to the printed circuit board 160, respectively. The data side and gate side printed circuit boards 150 and 160 generate the driving signal and the timing signal and apply them to the plurality of data side and gate side TCPs 120 and 140, 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 includes first and second lamp units 210 and 220 for generating the light, a light guide plate 230 for guiding the light to the liquid crystal display panel, and an optical for uniforming the brightness of the light. Sheets 240 and a reflecting sheet 250 for reflecting the light.

In detail, the first and second lamp units 210 and 220 generate light in response to power supplied from the outside. The first lamp unit 210 is located on a first side of the light guide plate 230, and the second lamp unit 210 is located on a second side facing the first side of the light guide plate 230.

In this embodiment, the first and second lamp units 210 and 220 have the same structure. Therefore, hereinafter, the structure of the first lamp unit 210 will be described in detail, and the description of the structure of the second lamp unit 220 will be omitted.

The first lamp unit 210 may include at least one first lamp 211 generating the light and a first lamp reflector 212 reflecting light from the first lamp 211 toward the light guide plate 230. It is provided.

The first lamp 211 into which the discharge gas is injected is coated with a fluorescent material on an inner wall of the first lamp 211 to receive power to generate the light.

The first lamp reflector 212 extends in the longitudinal direction of the first lamp 211, surrounds a portion of the first lamp 211, and the light guide plate 230 is opened.

The light guide plate 230 is provided between the first lamp unit 210 and the second lamp unit 220. The light guide plate 230 changes the path of the light incident from the first and second lamp units 210 and 220 and provides the light to the liquid crystal display panel 110.

The optical sheets 240 are provided on the light guide plate 230. The optical sheets 240 improve the characteristics of the light, for example, increase luminance and uniformity, and provide the optical sheets 240 to the liquid crystal display panel 110. To this end, the optical sheets 240 may include various optical sheets, for example, a diffusion sheet for diffusing the light and a prism sheet for condensing the light.

The reflective sheet 250 is provided under the light guide plate 230. The reflective sheet 250 reflects the light leaked from the light guide plate 230 toward the light guide plate 230 to improve light utilization efficiency.

The liquid crystal display panel 110 and the backlight assembly 200 are accommodated in the storage container 300. The bottom plate 310 on which the backlight assembly 200 is mounted, sidewalls 320 extending from an edge of the bottom plate 310, an upper surface 330 fixing the position of the liquid crystal display panel 110, and the The fixing part 340 is formed at the upper end of the sidewalls 320.

The sidewalls 320 are formed with a first coupling groove 326a and a second coupling groove 326b for coupling with the first and second fixing films 130 and 135. The first coupling groove 326a is positioned corresponding to the first coupling hole 130a of the first fixing film 130. The first fixing film 130 is coupled to the storage container 300 by using a first screw 510 which is penetrated through the first coupling hole 130a and fastened to the first coupling groove 326a.

The second coupling groove 326b is positioned corresponding to the second coupling hole 135a of the second fixing film 135. The second fixing film 135 passes through the second coupling hole 135a and is coupled to the storage container 300 using a second screw 520 fastened to the second coupling groove 326b.

A plurality of fastening grooves are formed on the sidewalls 320 of the storage container 300 to couple with the plurality of clips. Although not shown in the drawing, the plurality of fastening grooves may include first to fourth fastening grooves.

The plurality of clips are provided on the sidewalls 320 of the storage container 300. The plurality of clips may include first to fourth clips 410, 420, and 440, and may be formed of a metal material. The first to fourth clips 410, 420, 430, and 440 are combined with the storage container 300 in which the liquid crystal display panel 110 is accommodated to connect the liquid crystal display panel 110 to the storage container 300. Secure in.

The first to fourth clips 410, 420, 430, and 440 have the same structure. In the accompanying drawings, the structure and coupling relationship of the first clip 410 will be described in detail, and the description of the structure and coupling relationship of the thirteenth to fourth clips 420, 430, and 440 will be omitted. do.

Although not shown in the drawing, the first and second clips 410 and 420 are positioned corresponding to the first and second fastening grooves. The first clip 410 is coupled to the storage container 300 by using a third screw 530 that is fastened to the first fastening groove. The second clip 420 is coupled to the storage container 300 by using a fourth screw 540 fastened to the second fastening groove. The third clip 430 is coupled to the storage container 300 by using a fifth screw 550 fastened to the third fastening groove 327C. The fourth clip 440 is coupled to the storage container 300 by using a sixth screw 560 fastened to the fourth fastening groove 327d.

2 is a perspective view illustrating the storage container shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line II ′ of FIG. 2.

2 and 3, the sidewalls 320 of the storage container 300 may include first to fourth sidewalls 321, 322, 323, and 324. Steps 325 are formed on the first to fourth sidewalls 321, 322, 323, and 324 to accommodate the liquid crystal display panel 110 (see FIG. 1). The first sidewall 321 faces the second sidewall 322, and the third sidewall 323 faces the fourth sidewall 324.

The first side wall 321 is connected to the upper surface 330. The upper surface 330 extends from the upper end of the first sidewall 321 to face the bottom plate 310 to cover an edge area of the liquid crystal display panel 110 (see FIG. 1). In this case, the upper surface 330 is integrally formed with the first sidewall 321.

The first and second coupling holes 326a and 326b are formed in the second sidewall 322 facing the first sidewall 321 to couple the first and second fixing films 130 and 135, respectively. Is formed. The first coupling hole 326a is positioned adjacent to the edge connected to the third sidewall 323, and the second coupling hole 326b is positioned adjacent to the edge connected to the fourth sidewall 324. .

The third side wall 323 has a first fastening hole 327a for engaging with the first clip 410 (see FIG. 1), and a second fastening hole 327a for engaging with the second clip 420 (see FIG. 1). 2 fastening holes 327b are formed. The first fastening hole 327a and the second fastening hole 327b are spaced apart from each other by a predetermined distance.

Although not shown in the drawing, a third fastening hole 327c for engaging with the third clip 430 (see FIG. 1) is provided on the fourth sidewall 324 facing the third sidewall 323, and the third sidewall 323. Four fastening holes 327d for engaging with the four clips 440 (see FIG. 1) are formed spaced apart from each other by a predetermined distance.

A fixing part 340 which prevents foreign substances from flowing into the inside of the storage container 300 and guides the position of the liquid crystal display panel 110 at upper ends of the second to fourth sidewalls 322, 323, and 324. ) Is provided. The fixing part 340 is positioned at the upper end of the second to fourth sidewalls 322, 323, and 324 except for the first sidewall 321 on which the upper surface 330 is located. In this case, the plurality of data side TCPs 120 and the plurality of gate side TCPs 140 are positioned on the second and fourth side walls 322 and 324. Accordingly, the fixing part 340 positioned on the second and fourth sidewalls 322 and 324 may be disposed between two adjacent TCPs to prevent overlapping with the plurality of data side and gate side TCPs 120 and 140. Located in between.

As shown in FIG. 3, the fixing part 340 extends from an upper end of the second sidewall 322. The fixing part 340 is inclined at a predetermined angle toward the bottom plate 310 with respect to the second side wall 322. The fixing part 340 is made of a rubber material having a predetermined elasticity to facilitate assembly and rework between the liquid crystal display panel 110 and the storage container 300.                     

4 is a cross-sectional view taken along the line II-II ′ of FIG. 1.

Referring to FIG. 4, the reflective plate 250, the light guide plate 230, and the optical sheets 240 are sequentially mounted on the bottom plate 310 of the storage container 300. The first lamp unit 210 is accommodated in a space formed between the light guide plate 230 and the first sidewall 321 of the storage container 300.

The liquid crystal display panel 110 is seated on the step 325 formed on the first sidewall 321. First and second polarizers 170 and 175 for polarizing the light in a specific direction are attached to upper and lower surfaces of the liquid crystal display panel 110, respectively.

An upper surface 330 of the storage container 300 integrally formed with the first sidewall 321 is positioned on an upper surface of the liquid crystal display panel 110. The upper surface 330 is positioned in an edge area EA surrounding the display area DP in which an image of the liquid crystal display panel 110 is displayed. The upper surface 330 partially covers the edge area EA to guide the position of the liquid crystal display panel 110.

As described above, the storage container 300 accommodates the liquid crystal display panel 110 and guides and fixes the position thereof. Accordingly, since the liquid crystal display device 600 does not need to have a top chassis for guiding and fixing the position of the liquid crystal display panel 110, the number of assembly parts may be reduced.

Meanwhile, the second fixing film 135 attached to the source side edge area EA of the liquid crystal display panel 110 is bent along the second sidewall 322, and the second fixing film 135 The data side printed circuit board 150 is coupled to the rear surface of the storage container 300. The second screw 520 is fastened to the second coupling groove 326b formed in the second sidewall 322 by passing through the second coupling hole 135a formed in the second fixing film 135. As a result, the second fixing film 135 is coupled to the second sidewall 322 to fix the liquid crystal display panel 110 to the storage container 300.

FIG. 5 is a perspective view illustrating the clip shown in FIG. 1, and FIG. 6 is a cross-sectional view taken along line III-III ′ of FIG. 1.

5 and 6, the first clip 410 has a first surface 411 and the first surface 411 in contact with any one of the side walls 320 of the storage container 300. A second surface 412 extending in a first direction from a first end of the second surface and a third surface extending in the first direction to face the second surface 412 from a second end of the first surface 411. Face 413. The first surface 411 is formed with a fastening hole 414 for coupling with the storage container (300).

As shown in FIG. 6, the first clip 410 is provided on the third sidewall 323 of the storage container 300. The first clip 410 inserts a portion of the storage container 300 in which the liquid crystal display panel 110 is accommodated to fix the liquid crystal display panel 110 to the storage container 300.

In this case, the first surface 411 of the first clip 410 is in contact with the third side wall 323. The second surface 322 of the first clip 410 is in contact with the edge area EA of the liquid crystal display panel 110. The third surface 323 of the first clip 410 is in contact with the bottom plate 310 of the storage container (300). That is, the liquid crystal display panel 110 and the storage container 300 are partially positioned between the second surface 412 and the third surface 413. In this case, the fixing part 340 formed at the upper end of the third sidewall 323 is positioned between the second surface 412 and the liquid crystal display panel 110.

A first fastening groove 327a corresponding to the fastening hole 414 is formed in the third sidewall 323 of the storage container 300. The first clip 410 is coupled to the storage container 300 by a third screw 510 that passes through the fastening hole 414 and is fastened to the first fastening groove 327a.

As such, the first clip 410 partially covers the edge area of the liquid crystal display panel 110 and is combined with the storage container 300 to connect the liquid crystal display panel 110 to the storage container 300. Secure in. Accordingly, the first clip 410 may improve the coupling force between the liquid crystal display panel 110 and the storage container 300.

Meanwhile, the fixing part 340 formed at the upper end of the third sidewall 323 of the storage container 300 partially covers the edge area EA of the liquid crystal display panel 110. As a result, the fixing part 340 improves the bonding force between the liquid crystal display panel 110 and the storage container 300, and foreign matter is separated by a gap between the third side wall 323 and the liquid crystal display panel 110. To prevent ingress.

As described above, according to the present invention, since the liquid crystal display device includes a storage container for accommodating the liquid crystal display panel and guiding the position of the liquid crystal display panel, it is necessary to include a top chassis for guiding the position of the liquid crystal display panel. There is no. As a result, the liquid crystal display device can reduce the number of assembly parts, thereby improving the assemblability, reducing the manufacturing cost, and reducing the overall size.

In addition, the liquid crystal display device includes first and second fixing films attached to the liquid crystal display panel and combined with the storage container to fix the liquid crystal display panel to the storage container. Accordingly, the liquid crystal display device can improve the bonding force between the liquid crystal display panel and the storage period, and reduce the overall size.

In addition, the liquid crystal display device includes a plurality of clips coupled to a storage container in which the liquid crystal display panel is accommodated to fix the liquid crystal display panel to the storage container. The plurality of clips cover a predetermined edge area of the liquid crystal display panel to improve the bonding force between the liquid crystal display panel and the storage period.

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 (11)

A display panel configured to display an image using light provided from the outside as an image signal is input; And And a storage container accommodating the display panel and fixing the display panel. The method of claim 1, wherein the storage container, Bottom plate; Sidewalls extending from the bottom plate to accommodate the display panel; And And an upper surface extending from an upper end of at least one sidewall among the sidewalls to face the bottom plate and covering a predetermined edge region of the display panel. The display device of claim 2, wherein the upper surface is formed integrally with the sidewall. The method of claim 2, wherein the storage container, And a fixing part extending from an upper end of at least one sidewall among the sidewalls and partially supporting an edge area of the display panel. 5. The display device of claim 4, wherein the fixing part is inclined at a predetermined angle with respect to the side wall of the bottom plate. The display device of claim 4, wherein the fixing part is made of a rubber material having elasticity. The method of claim 1, A printed circuit board generating the image signal; First and second fixing films having a first end attached to the display panel, a second end facing the first end attached to the printed circuit board, and bent along a sidewall of the storage container; And And a plurality of signal transmission films positioned between the first fixing film and the second fixing film and electrically connected to the printed circuit board and the display panel to transmit the image signal to the display panel. Display device characterized in that. The method of claim 7, wherein the first and the second fixing film is formed with a first coupling hole for coupling with the storage container, the storage container is formed with a second coupling hole corresponding to the first coupling hole, And the first and second fixing films are coupled to the storage container by using a first screw penetrating the first coupling hole and fastened to the second coupling hole. The display apparatus of claim 1, further comprising a clip coupled to a sidewall of the storage container to fix the display panel to the storage container. The method of claim 9, wherein the clip, A first plate partially covering sidewalls of the storage container; A second plate extending in a first direction from a first end of the first plate to partially support an edge area of the display panel; And And a third plate extending from the second end of the first plate to be parallel to the second plate in the first direction. The method of claim 10, wherein the first plate is formed with a first fastening hole for coupling with the storage container, the side wall of the storage container is formed with a second fastening hole corresponding to the first fastening hole, And the clip is coupled to the storage container using a first screw that penetrates the first fastening hole and is fastened to the second fastening hole.

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