KR20060102233A - Supporting member for display apparatus and display apparatus having the same - Google Patents

Abstract

A support member for a display device capable of improving display characteristics and a display device having the same are disclosed. The support member for the display device includes a base substrate, a protrusion protruding from the base substrate to support the diffusion plate, and fixing clips protruding from the base substrate and fastened to the storage container. Since the fixed clips are located in a zigzag form and are coupled to the storage container in a sliding manner, assembly tolerances with the storage container and the width of each fixing clip can be reduced. Accordingly, the support member can prevent light leakage from occurring on the rear surface of the storage container, thereby improving display characteristics of the display device.

Support member, diffuser plate, assembly tolerance

Description

SUPPORTING MEMBER FOR DISPLAY APPARATUS AND DISPLAY APPARATUS HAVING THE SAME}

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

2A and 2B are views illustrating the support member shown in FIG. 1.

3 is a partially exploded perspective view illustrating a coupling relationship between the lamps, the reflecting plate, and the storage container and the supporting member shown in FIG. 1.

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

5 is an enlarged cross-sectional view of portion 'A' of FIG. 4.

6A and 6B illustrate a coupling relationship between the first fixing clip and the storage period.

7A and 7B are views illustrating a state in which a first fixing clip is fastened to a storage container.

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

100: display panel assembly 200: backlight assembly

210: lamp 220: diffuser plate

230, 240: side mold 250: support member

251: base substrate 252: lamp clip

253: support portion 254, 255, 256: fixed clip

260: reflector 270: storage container

300: top chassis 400: liquid crystal display device

The present invention relates to a support member for a display device and a display device having the same, and more particularly, to a support member for a display device and a display device having the same that can improve display characteristics.

In general, a liquid crystal display device displaying an image by using the electrical characteristics of the liquid crystal includes a liquid crystal display panel displaying an image and a backlight assembly providing light to the liquid crystal display panel.

The direct type backlight assembly including a plurality of lamps under the liquid crystal display panel to directly irradiate light to the liquid crystal display panel includes a diffusion plate for diffusing light from the lamps and a support member for maintaining a separation distance between the lamps and the diffusion plate. And an accommodating container for accommodating the lamps and the diffusion plate.

The support member has a fixing clip fastened to the storage container, and the storage container has a coupling hole into which the fixing clip is inserted. Since the fixing clip is hooked to the coupling hole, an assembly tolerance between the fixing clip and the coupling hole occurs, whereby light leaks through the coupling hole to the rear surface of the storage container, thereby degrading display characteristics.

In addition, due to the assembly tolerance between the support member and the storage period, the support member vibrates according to the frequency of the speaker to generate noise, and foreign matter may be introduced into the liquid crystal display through the gap between the fixing clip and the coupling hole.

It is an object of the present invention to provide a support member for a display device which can improve display characteristics.

Another object of the present invention is to provide a display device having the support member for the display device.

According to one aspect of the present invention, a support member for a display device includes a base substrate, a lamp clip, a support portion, and at least two fixing clips.

The lamp clip fixes the lamp that protrudes upward from the base substrate to generate light. The support part protrudes upward from the base substrate and supports a diffusion member that diffuses and emits light incident from the lamp. The securing clips protrude downward from the base substrate and are located in a zigzag form.

In addition, the display device according to one aspect for realizing the above object of the present invention comprises a display panel, a lamp, a diffusion member, a storage container, and a support member.

The display panel displays an image using light. The lamp generates light. The diffusion member diffuses the light from the lamp and provides it to the display panel. The storage container houses the lamp and has a coupling hole. The support member includes a base substrate, a lamp clip protruding from the base substrate to fix the lamp, a support portion protruding from the base substrate to support the diffusion member, and a fixing clip protruding from the base substrate and fastened to the coupling hole. The support member has at least two fastening clips, and the fastening clips are located in a zigzag form.

According to the support member for the display device and the display device having the same, since the fixing clips are located in a zigzag shape, the support member can be prevented from flowing according to the vibration sound of the speaker. In addition, the light leakage phenomenon can be prevented by reducing the assembly tolerance between the support member and the storage period, thereby improving the display characteristics of the liquid crystal display device.

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 device 400 according to the present invention includes a display panel assembly 100 displaying an image, a backlight assembly 200 providing light to the display panel assembly 100, and the display panel. A top chassis 300 is provided to guide the position of the assembly 100.

In more detail, the display panel assembly 100 may include a liquid crystal display panel 110 for displaying the image using the light, a data side for providing an image signal corresponding to the image to the liquid crystal display panel 110, and Gate side printed circuit boards 120 and 130, and data side and gate side tape carrier packages (TCP) 140 and 150 electrically connected to the liquid crystal display panel 110. .

The liquid crystal display panel 110 includes a thin film transistor substrate (TFT) 111, a color filter substrate 112 coupled to the TFT substrate 111 so as to face each other, and the TFT substrate 111 and the The liquid crystal layer 113 injected between the color filter substrates 112 is included.

The TFT substrate 111 includes a plurality of pixels (not shown) in a matrix form. Each pixel is defined by a gate line (not shown) extending in a first direction, a data line (not shown) extending in a second direction orthogonal to the first direction and insulated from and intersecting the gate line. A pixel electrode is provided. In addition, a TFT is formed in each pixel to be connected to the gate line, the data line, and the pixel electrode.

In the color filter substrate 112, an RGB color pixel (not shown) expressing a predetermined color using the light is formed by a thin film process, and a common electrode facing the pixel electrode is formed.

The liquid crystal layer 113 is interposed between the TFT substrate 311 and the color filter substrate 312. The liquid crystal layer 113 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 data side printed circuit board 120 is provided on the source side of the liquid crystal display panel 110. The data side printed circuit board 120 includes a driving chip for generating the driving signal for driving the liquid crystal display panel 110, a timing controller for adjusting the timing of the driving signal, and a memory for storing data signals. Etc. are mounted.

The gate side printed circuit board 130 is provided on the gate side of the liquid crystal display panel 110. The gate side printed circuit board 130 includes the driving chip, the timing controller, and a memory for storing the gate signal.

In this embodiment, the display panel assembly 100 has two printed circuit boards 120 and 130, but one printing in which the functions of the data side and the sheet side printed circuit boards 120 and 130 are integrated. It may be provided with a circuit board.

One end of the data side printed circuit board 120 is provided with the data side TCPs 140. The data side TCPs 140 are electrically connected to the liquid crystal display panel 110 and the data side printed circuit board 120 to receive the driving signal and the data signal applied from the printed circuit board 120. The liquid crystal display panel 110 is provided.

The gate-side TCPs 150 are attached to one end of the gate-side printed circuit board 130. The gate side TCPs 140 are electrically connected to the liquid crystal display panel 110 and the gate side printed circuit board 130 to be applied to the gate signal and the driving signal applied from the gate side printed circuit board 130. Is provided to the liquid crystal display panel 110.

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

The backlight assembly 200 includes a plurality of lamps 210 that generate the light, a diffuser plate 220 that diffuses the light, and first and second side molds to fix positions of the lamps 210. 230, 240, a support member 250 to prevent the diffusion plate 220 from bending, a reflector 260 reflecting light from the lamps 210, and a storage container 270.

The lamps 210 are spaced apart from each other at predetermined intervals and generate the light in response to a power supplied from the outside. The lamps 210 are provided under the liquid crystal display panel 110 to collectively irradiate the light to the display area of the liquid crystal display panel 110 where the image is displayed.

The diffusion plate 220 is provided on the lamps 210 and diffuses the light from the lamps 210 to the liquid crystal display panel 110.

Although not shown in the drawing, the liquid crystal display device 400 is interposed between the diffusion plate 220 and the liquid crystal display panel 110 to increase the characteristics of light passing through the diffusion plate 220, for example, brightness. And optical sheets provided to the liquid crystal display panel 110 by improving luminance uniformity. To this end, the optical sheets may include various optical sheets, for example, a prism sheet for collecting light from the diffusion plate 220.

The first and second side molds 230 and 240 are positioned at both ends of the lamps 210, respectively. The first and second side molds 230 and 240 space the lamps 210 at predetermined intervals to fix their positions. The first and second side molds 230 and 240 are positioned at both sides of the light emitting area where the light of the lamps 210 is generated.

End portions corresponding to both ends of the lamps 220 are accommodated in the first and second side molds 230 and 240. Although not shown in the drawing, the first and second side molds 230 and 240 have stepped portions on which end portions of the diffusion plate 220 are seated.

As such, since the first and second side molds 230 and 240 support only the ends of the diffusion plate 220, the diffusion plate 220 may be bent toward the lamps 210.

The support member 250 maintains a uniform distance between the lamps 210 and the diffuser plate 220 to prevent the diffuser plate 220 from bending toward the lamps 210. In this embodiment, the backlight assembly 200 has three support members. The number of the support members 250 may increase or decrease according to the number of lamps and the number of lamps to which one support member 250 may be coupled.

The support members are zigzag in the light emitting regions of the lamps 210 and are positioned on the reflector plate 260. The support members are coupled to the lamps 210 to fix the positions of the lamps 210 and are fastened to the storage container 270. A detailed description of each support member 250 will be described later with reference to FIGS. 2A and 2B.

The reflector 260 is provided under the lamps 210. The reflector 260 reflects the light leaked from the lamps 210 to improve the utilization efficiency of the light.

The diffusion plate 220, the first and second side molds 230 and 240 coupled to the lamps 210, the support members, and the reflector plate 260 are accommodated in the storage container 270. do. The storage container 270 includes a bottom surface 271 and a side wall 272 extending vertically from an edge of the bottom surface 271. The storage container 270 is made of a metal material so as to quickly discharge heat from the lamps 210.

Although not shown in the figure, the liquid crystal display device 400 may further include a mold frame for accommodating the liquid crystal display panel 110. The mold frame is provided on the backlight assembly 200 and has an open bottom surface so that light from the backlight assembly 200 is provided to the liquid crystal display panel 110.

The top chassis 300 is provided on the liquid crystal display panel 110. The top chassis 300 guides the position of the liquid crystal display panel 110 and is coupled to the storage container 270 to fix the liquid crystal display panel 110.

2A and 2B are views illustrating the support member shown in FIG. 1.

2A and 2B, the support member 250 protrudes from a top surface of the base substrate 251, the base substrate 251, and a lamp clip 252 coupled to the lamps 210 and the base. A support portion 253 protruding from the upper surface of the substrate 251 to support the diffusion plate 220 (see FIG. 1), and protruding from the rear surface of the base substrate 251 to allow the storage container 270 (see FIG. 1). Fastening clips).

The base substrate 251 extends in a direction in which the lamps 210 are arranged.

The lamp clip 252 fixes the position of the lamp. In this embodiment, the support member 250 has four lamp clips, and two lamp clips are positioned on each side of the support part 253. The number of lamp clips may be increased or decreased according to the size of the base substrate 251.

The support part 253 supports the diffusion plate 220 to maintain a uniform distance between the diffusion plate 220 and the lamps 210.

The fixing clips are provided on the rear surface of the base substrate 251 unlike the lamp clip 252 and the support part 253.

As shown in FIG. 2B, the fixing clips may include first to third fixing clips 254, 255, and 256, and may be spaced apart by a predetermined distance.

The first to third fixing clips 254, 255, and 256 are positioned in a zigzag form. That is, the first fixing clip 254 is positioned in a region different from the second and third fixing clips 255 and 256 with respect to the center line CL corresponding to the longitudinal direction of the base substrate 251. . Accordingly, the first to third fixing clips 254, 255, and 256 may prevent the support member 250 from flowing in the horizontal direction, that is, in the longitudinal direction of the lamps 210. According to the vibration sound of the support member 250 may be prevented that the noise is generated.

The widths W of the first to third fixing clips 254, 255, and 256 are equal to each other, and are formed to be about 4 mm smaller than conventional ones. Since the first to third fixing clips 254, 255, and 256 are arranged in a zigzag shape, the flow of the support member 250 can be prevented even when the width W is reduced.

In addition, when the width W of the first to third fixing clips 254, 255, and 256 is reduced, the storage container 270 is coupled to the first to third fixing clips 254, 255, and 256. Since the size of the coupling hole (refer to FIG. 1) is reduced, light leaking to the rear surface of the storage container 270 may be reduced.

Referring back to FIG. 2A, the first to third fixing clips 254, 255, and 256 may include first fixing parts 254a, 255a, and 256a protruding from the rear surface of the base substrate 251, and the first fixing clips 254, 255, and 256a. And second fixing parts 254b, 255b, and 256b extending from the ends of the fixing parts 254a, 255a, and 256a to face the base substrate 251.

The first fixing clip 254 further includes a coupling protrusion 254c protruding from the end of the second fixing portion 254b toward the base substrate 251. In this embodiment, the coupling protrusion 254c is provided only in the first fixing clip 254, but the second and third fixing to improve the coupling force between the support member 250 and the storage container 270. It may also be provided in the clip (255, 256).

Hereinafter, the coupling relationship between the support member and the storage period will be described in detail with reference to the drawings.

3 is a partially exploded perspective view illustrating a coupling relationship between the lamps, the reflecting plate, and the storage container and the supporting member shown in FIG. 1.

Referring to FIG. 3, one lamp is inserted into the lamp clip 252 of the support member 250.

The reflection plate 260 includes insertion holes 261 positioned to correspond to the first to third fixing clips 254, 255, and 256. Coupling holes 273 corresponding to the insertion holes 261 are provided at the bottom surface 271 of the storage container 270 in which the supporting member 250 and the reflecting plate 260 are accommodated.

First to third fixing clips 254, 255, and 256 of the support member 250 pass through the insertion holes 261 and the coupling holes 273, and thus, the bottom surface of the storage container 270. 271).

4 is a cross-sectional view taken along the line I-I 'of FIG. 1, and FIG. 5 is an enlarged cross-sectional view of part' A 'of FIG. 4.

4 and 5, the base substrate 251 of the support member 250 is positioned on the reflector plate 260. The lamp fixing clips 251 insert the lamps 210 to fix the lamps 210.

The support part 253 supports the diffuser plate 220 provided on the lamps 210 to maintain a uniform distance between the lamps 210 and the diffuser plate 220.

The first to third fixing clips 254 pass through the insertion holes 261 formed in the reflecting plate 260 and the coupling holes 273 formed in the storage container 270 to accommodate the storage container 270. ) Is fastened to the bottom surface 271.

In detail, the first fixing part 254a of the first fixing clip 254 is inserted into an insertion hole and a coupling hole positioned corresponding to the first fixing clip 254. The second fixing part 254b of the first fixing clip 254 penetrates through the insertion hole and the coupling hole positioned corresponding to the first fixing clip 254, and bottom surface 271 of the storage container 270. Sliding in one direction along) supports the bottom surface 271.

The bottom surface 271 of the storage container 270 includes a coupling groove 274 positioned corresponding to the coupling protrusion 254c. The coupling groove 274 is spaced apart from the coupling hole into which the first fixing clip 254 is inserted at a predetermined interval.

As shown in FIG. 5, the coupling protrusion 254c is inserted into the coupling groove 274 to fix the support member 250 to the storage container 270.

Referring back to FIG. 4, the first fixing portions 255a and 256a (see FIG. 2A) of the second and third fixing clips 255 and 256 may be connected to the second and third fixing clips 255 and 256. It is inserted into the insertion hole and the coupling hole respectively correspondingly located.

The second fixing parts 255b and 255c of the second and third fixing clips 255 and 256 pass through corresponding insertion holes and coupling holes, and extend in one direction along the bottom surface 271 of the storage container 270. It slides to support the bottom surface 271.

As such, since the first to third fixing clips 254, 255, and 256 are coupled to the storage container 270 in a sliding manner, an assembly tolerance between the support member 250 and the storage container 270 may be reduced. Since it can be reduced, it is possible to prevent the light leakage phenomenon leaking light to the back of the storage container (270).

6A and 6B illustrate a coupling relationship between the first fixing clip and the storage period.

6A and 6B, the first fixing clip 254 penetrates through the corresponding coupling hole. The length of the coupling hole 273 is equal to or larger than the length of the second fixing part 254b so that the second fixing part 254b of the first fixing clip 254 penetrates. The width of the coupling hole 273 is the same as or larger than the width of the first fixing clip 254.

The first fixing clip 254 moves toward the coupling groove 274 positioned adjacent to the coupling hole 273. At this time, the entire support member 250 is moved in one direction.

7A and 7B are views illustrating a state in which a first fixing clip is fastened to a storage container.

7A and 7B, when the first fixing clip 254 slides toward the coupling groove 274, the coupling protrusion 254c of the first fixing clip 254 is connected to the coupling groove 274. Is inserted. In this case, the base substrate 251 is partially exposed through the coupling hole 273.

According to the present invention described above, a liquid crystal display device includes a support having a base substrate, a lamp clip protruding from the base substrate, a protrusion projecting from the base substrate to support the diffusion plate, and fixing clips protruding from the base substrate and fastened to the storage container. Member. Since the fixed clips are coupled to the storage container in a sliding manner, the liquid crystal display can reduce the assembly tolerance between the support member and the storage period. As a result, the liquid crystal display device can prevent light leakage from leaking to the rear surface of the storage container, thereby improving display characteristics.

In addition, the support member is fixed clips are located in a zigzag form, it is possible to prevent the support member from flowing in accordance with the vibration sound of the speaker.

In addition, since the width of each fixing clip can be reduced, the size of the coupling hole formed in the storage container can be reduced. Accordingly, the liquid crystal display device may minimize light leakage to the rear surface of the storage container, thereby improving display characteristics.

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 base substrate; A lamp clip protruding upward from the base substrate to fix a lamp generating light; A support part protruding upward from the base substrate to support a diffusion member that diffuses and emits light incident from the lamp; And At least two fixing clips protruding downward from the base substrate, And the fixing clips are separated on both sides with respect to a center corresponding to a length direction of the base substrate. The support member of claim 1, wherein the fixing clips are located in a zigzag shape. The method of claim 1, wherein the fixing clip, A first fixing part protruding from the base substrate; And And a second fixing part extending from the first fixing part to face the base substrate. The support member of claim 3, wherein the at least one fixing clip further comprises a coupling protrusion protruding from the second fixing portion toward the base substrate. The support member of claim 1, wherein the fixing clip has a width of about 4 mm or less. A display panel displaying an image using light; A lamp for generating the light; A diffusion member configured to diffuse light from the lamp and provide the light to the display panel; A storage container accommodating the lamp and having a coupling hole; And A support member having a base substrate, a lamp clip protruding from the base substrate to fix the lamp, a support portion protruding from the base substrate to support the diffusion member, and a fixing clip protruding from the base substrate and fastened to the coupling hole Including, The support member includes at least two fixing clips, and the fixing clips are separated from each other on both sides of a center corresponding to a length direction of the base substrate. The method of claim 6, wherein the fixing clip, A first fixing part protruding downward from the base substrate and inserted into the coupling hole; And And a second fixing part extending from the first fixing part to face the base substrate and sliding through the coupling hole in a horizontal direction. The display device of claim 7, wherein the second fixing part supports a bottom surface of the storage container. The method of claim 7, wherein the storage container further comprises a coupling groove, And the fixing clip further includes a coupling protrusion protruding from the second fixing portion and inserted into the coupling groove. The display device according to claim 6, further comprising a reflector plate accommodated in the storage container, having an insertion hole corresponding to the coupling hole, and reflecting light from the lamp toward the diffusion member. The display device of claim 10, wherein the base substrate is on the reflective plate.

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