KR20060013260A - Display apparatus - Google Patents

Abstract

Disclosed is a display device having improved assembly property of a printed circuit board. The display device includes a storage container, a display panel assembly, and a coupling member. The storage container accommodates the backlight assembly for generating light and has a first coupling portion formed on a rear surface thereof. The display panel assembly includes a display panel that is accommodated in a storage container and converts light into image light, and a printed circuit board disposed on a rear surface of the storage container to apply a driving signal to the display panel and have a second coupling portion formed thereon. The coupling member is coupled to the first coupling portion and the second coupling portion in a one-touch manner to couple the printed circuit board to the storage container. In this way, the coupling member is coupled to the first coupling portion and the second coupling portion in a one-touch manner, thereby shortening the working time by coupling the printed circuit board to the storage container.

Description

Display {DISPLAY APPARATUS}

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

FIG. 2 is an enlarged view of portion 'A' of FIG. 1.

3 is a cross-sectional view taken along the line I1-I2 of FIG. 2.

4 is an exploded perspective view illustrating a display device according to a second exemplary embodiment of the present invention.

5 is an enlarged view of a portion 'B' of FIG. 4.

FIG. 6 is a cross-sectional view taken along the line II1-II2 of FIG. 5.

7 is an exploded perspective view illustrating a display device according to a third exemplary embodiment of the present invention.

FIG. 8 is an enlarged view of a portion 'C' of FIG. 7.

FIG. 9 is a cross-sectional view taken along line III1-III2 of FIG. 8.

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

    100: display device 200: storage container

    210: bottom surface 212,214,216: first coupling part

    300: display panel assembly 310: display panel

    320: printed circuit board 330: tape carrier package

    400, 410, 420: coupling member 500: backlight assembly

    600: top chassis

The present invention relates to a display device. More particularly, the present invention relates to a display device having improved assembly characteristics of a printed circuit board.

In general, various electronic devices such as mobile communication terminals, digital cameras, notebook computers, and monitors include a display device for displaying an image.

There are various types of display devices, such as cathode-ray tubes, liquid crystal displays, plasma display panels, field emission displays, and electroluminescence. There is an electroluminescence device.

Among them, a liquid crystal display displays an image by using liquid crystal. The liquid crystal display device is thinner and lighter than other display devices, and has advantages of low power consumption and low driving voltage.

BACKGROUND ART Conventional liquid crystal displays have a display panel for displaying an image using light, a back-light assembly for providing light to the display panel, and driving signals necessary for realizing an image in the display panel. It includes a printed circuit board (Provided Printed Circuit Board) and a housing container for receiving the backlight assembly and the display panel and fixing the printed circuit board.

The printed circuit board of the conventional display device is coupled to the storage container by a coupling screw and a coupling hole formed in the printed circuit board to fasten the coupling screw.

When the printed circuit board is fastened to the storage container by the coupling screw, the assembly time is increased, and when the coupling screw is repeatedly combined and separated from the storage container, the coupling screw is broken and the printed circuit board cannot be separated from the storage container. I have a problem.

Accordingly, the present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a display device in which the assembly time is greatly reduced by changing a coupling method of a printed circuit board and a storage container.

The display device for achieving the object of the present invention includes a storage container, a display panel assembly and a coupling member. The storage container accommodates the backlight assembly for generating light and has a first coupling portion formed on a rear surface thereof. The display panel assembly is disposed on the display panel for storing the light into an image light including information, the display panel assembly is disposed on the rear side of the storage container to apply a driving signal to the display panel, and has a second coupling part corresponding to the first coupling part. It includes a printed circuit board. The coupling member is coupled to the first coupling portion and the second coupling portion in a one-touch manner to fix the printed circuit board to the storage container.

According to the present invention, it is possible to shorten the working time required to assemble the printed circuit board and the storage container by using the coupling member for coupling the printed circuit board and the storage container in a one-touch manner.

The display device according to the present invention includes a storage container, a display panel assembly, and a coupling member.

The storage container includes a bottom surface and sidewalls extending or arranged from the bottom surface, and the storage space is formed in the storage container by the bottom surface and the sidewalls. In the storage space, for example, a backlight assembly generating light is accommodated, and a first coupling part is formed on an outer surface of the bottom surface.

The display panel assembly includes a display panel which is accommodated in a storage container and converts light into image light including information, a printed circuit board and a display panel electrically connected to the display panel to apply a driving signal required to display an image on the display panel. And a tape carrier package for electrically connecting the printed circuit board.

The display panel is accommodated in the storage space and receives light from the backlight assembly. The display panel includes a thin film transistor substrate (TFT substrate), a color filter plate, and a liquid crystal layer.

The printed circuit board is bent to the outer side of the storage container via the tape carrier package and disposed on the outer side. The printed circuit board has a second coupling portion formed to correspond to the first coupling portion formed on the outer surface of the storage container.

The coupling member is coupled to the first coupling portion of the storage container and the second coupling portion of the printed circuit board in a one-touch manner to fix the printed circuit board to the storage container.

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

Example  One

1 is an exploded perspective view illustrating a display device according to a first embodiment of the present invention. FIG. 2 is an enlarged view of portion 'A' of FIG. 1. 3 is a cross-sectional view taken along the line I1-I2 of FIG. 2.

1 to 3, the display device 100 includes a storage container 200, a display panel assembly 300, and a coupling member 400.

The storage container 200 includes a bottom surface 210 and sidewalls 220 extending or disposed from an edge of the bottom surface 210. The first coupling part 212 is formed on the outer surface of the bottom surface 210 of the storage container 200.

The first coupling part 212 according to the present embodiment is a coupling groove formed from the outer surface of the bottom surface 210. Hereinafter, the coupling groove will be given the same reference numeral 212 as the first coupling portion 212.

In this embodiment, the separation preventing protrusion 212a protruding in a direction parallel to the bottom surface 210 of the storage container 200 may be further formed on the inner surface of the coupling groove 212. Coupling groove 212 is coupled to the coupling member 400 to be described later, the separation prevention protrusion 212a prevents the coupling member 400 is randomly separated from the coupling groove (212).

An accommodation space is formed in the storage container 200 by the bottom surface 210 and the sidewalls 220, and the backlight assembly 500 generating light is accommodated in the storage space.

The backlight assembly 500 may include a lamp assembly 510, a light guide plate 520, a reflector 530, and an optical member 540.                     

The lamp assembly 510 includes a light source cover that surrounds a part of the light source 512 to reflect light generated by the light source 512 and the light generated from the light source 512 toward the light guide plate 520 to be described later. (Lamp Cover) 514.

The light guide plate 520 is coupled to the light source cover 514 of the lamp assembly 510 and receives light from the lamp assembly 510 to change the optical distribution of the light incident on the light guide plate 520 and the direction of the light. .

The reflective plate 530 is interposed between the light guide plate 520 and the bottom surface 210 of the storage container 200 to reflect the light leaked from the light guide plate 520 back to the light guide plate 520.

The optical member 540 diffuses the light emitted from the light guide plate 520 to diffuse the sheet 542 to change the distribution of light and at least one prism sheet 544 to focus the diffused light to improve the front viewing angle and brightness of the light It includes. In addition, the optical member 540 may further include a dual brightness enhanced film (DBEF) (not shown).

The display panel assembly 300 is coupled to the storage container 200, and displays an image from the display panel 310 and the display panel 310 for changing the light emitted from the optical member 540 into image light. The printed circuit board 320 includes a printed circuit board 320 for applying a driving signal required to the display panel 310 and a tape carrier package 330 for electrically connecting the display panel 310 to the printed circuit board 320.

The display panel 310 includes a TFT substrate 312, a color filter substrate 314, and a liquid crystal layer 316.                     

The TFT substrate 312 includes a plurality of transparent and conductive pixel electrodes, a thin film transistor (TFT) for applying a driving voltage to the pixel electrode, and a data signal line for operating the thin film transistor (TFT). Signal Lines and Gate Signal Lines.

The color filter substrate 314 is disposed to face the TFT substrate 312. The color filter substrate 314 is disposed on a surface facing the pixel electrode and is a transparent and conductive common electrode, and a color filter disposed to face each pixel electrode, for example, a red color filter, a green color filter, and And a blue color filter.

The liquid crystal layer 316 is interposed between the TFT substrate 312 and the color filter substrate 314, and is formed by an electric field difference formed between the pixel electrode of the TFT substrate 312 and the common electrode of the color filter substrate 314. Rearranged. The rearranged liquid crystal layer 316 adjusts the light transmittance of the light generated from the light source 512 of the backlight assembly 500, and the light whose light transmittance is adjusted passes through the color filter to display an image.

The printed circuit board 320 electrically connected to the display panel 310 is bent to the bottom surface 210 of the storage container 200 via the tape carrier package 330 and disposed on the outer surface of the bottom surface 210. do.

The second printed circuit board 320 disposed on the outer surface of the bottom surface 210 is formed at a position corresponding to the first coupling portion 212 formed on the outer surface of the bottom surface 210 of the storage container 200. It has a coupling part 322. In the present embodiment, the second coupling part 322 is a through hole formed on the printed circuit board 320. Hereinafter, in the present embodiment, the same reference numeral 322 as the second coupling portion 322 is given to the through hole.

The tape carrier package 330 electrically connecting the display panel 310 and the printed circuit board 320 may include a source tape carrier package 332 connected to a data signal line of the TFT substrate 312 and a gate signal line of the TFT substrate 312. And a gate tape carrier package 334 coupled to it. The source tape carrier package 334 transfers a driving signal from the printed circuit board 320 to the TFT substrate 312 of the display panel 310.

The coupling groove 212 formed in the outer surface of the bottom surface 210 of the storage container 200 and the through hole 322 formed in the printed circuit board 320 are coupled by the coupling member 400.

Coupling member 400 is coupled to the coupling groove 212 of the storage container 200 and the through hole 322 of the printed circuit board 320 in a one-touch manner, thereby, the printed circuit board 320 is a storage container ( 200).

2 and 3, the coupling member 400 according to the present embodiment includes a protrusion 402 and a coupling head 404.

The protrusion 402 passes through the through hole 322 of the printed circuit board 320, and then fits into the coupling groove 212 of the storage container 200. The protrusion 402 according to the present exemplary embodiment is provided with an anti-separation part 402a which suppresses the protrusion 402 from being artificially separated from the coupling groove 212. For example, the separation prevention part 402a according to the present embodiment is formed at the end of the protrusion 402.

The release preventing part 402a formed in the protrusion 402 further suppresses the protrusion 212 from being separated from the coupling groove 212 by the release preventing protrusion 212a of the coupling groove 212.                     

The coupling head 404 is formed at the end of the protrusion 402 of the coupling member 400, and has a hemispherical shape. The coupling head 404 pressurizes the printed circuit board 320 when the protrusion 402 is coupled to the coupling hole 212 so that the printed circuit board 320 flows up and down with respect to the bottom surface 210 of the storage container. Prevent it.

The display device 100 according to the present exemplary embodiment may further include a top chassis 600 coupled to the side wall 220 of the storage container 200 to fix an edge of the display panel 310.

Example  2

4 is an exploded perspective view illustrating a display device according to a second exemplary embodiment of the present invention. 5 is an enlarged view of a portion 'B' of FIG. 4. FIG. 6 is a cross-sectional view taken along the line II1-II2 of FIG. 5. The display device according to the second embodiment of the present invention has the same configuration as the display device of the first embodiment described above, except for the first coupling portion and the coupling member of the storage container, and thus duplicated description thereof will be omitted. The same reference numerals and names are used for the same components.

4 to 6, the first coupling part 214 is formed on the outer surface of the bottom surface 210 of the storage container 200. The first coupling part 214 according to the present exemplary embodiment is a protrusion protruding from the outer surface of the storage container 200 to be fitted into the through hole 322 of the printed circuit board 320. Hereinafter, the projections are given the same reference numeral 214 as the first coupling portion 214.

The protrusion 214 according to the present embodiment is provided with a departure preventing portion 214a for suppressing the separation of the coupling member 410 to be described later. For example, the separation prevention part 214a according to the present embodiment is formed at the end of the protrusion 214.

The coupling member 410 is combined with the protrusion 214 of the storage container 200 inserted into the through hole 322 of the printed circuit board 320 in a one-touch manner to fix the printed circuit board 320 to the storage container 200. Let's do it.

Coupling member 410 according to the present embodiment includes a coupling head formed with a groove for coupling to the protrusion 214 of the storage container 200. Coupling heads to be described later will be given the same reference numeral 410 as the coupling member 410.

The coupling head 410 has a hemispherical shape and has a groove 412 formed on one surface of the coupling head 410 facing the printed circuit board 320 so that the protrusion 214 is fitted into the coupling head 412. The groove 412 of the coupling head 410 is coupled with the protrusion 214 of the storage container 200 to prevent the coupling head 410 from being separated from the protrusion 214 of the storage container 200.

In the present embodiment, the inner surface of the groove 412 of the coupling head 410 is formed with a coupling head protrusion 414 protruding to engage with the separation prevention portion 214a formed in the protrusion 214 of the storage container 200. The coupling head protrusion 414 may further suppress the coupling head 410 from being separated from the protrusion 214 of the storage container 200.

Alternatively, it is also preferable that the coupling member 410 according to the present embodiment has a donut shape having a center opening to be coupled to the protrusion 214 of the storage container 200.

Example  3

7 is an exploded perspective view illustrating a display device according to a third exemplary embodiment of the present invention. FIG. 8 is an enlarged view of a portion 'C' of FIG. 7. FIG. 9 is a cross-sectional view taken along line III1-III2 of FIG. 8. The display device according to the third embodiment of the present invention has the same configuration as the display device of the first embodiment described above, except for the first coupling portion and the coupling member of the storage container, and thus duplicated description thereof will be omitted. The same reference numerals and names are used for the same components.

7 to 9, a first coupling part 216 is formed on the rear surface of the storage container 200, that is, on the outer surface of the bottom surface 210. The first coupling part 216 according to the present embodiment is a coupling groove formed in the outer surface of the storage container 200. Hereinafter, the coupling groove will be given the same reference numeral 216 as the first coupling portion 216.

In this embodiment, the separation prevention protrusion 216a protruding in a direction parallel to the bottom surface 210 of the storage container 200 may be further formed on the inner surface of the coupling groove 216. Coupling groove 216 is coupled to the coupling member 420 to be described later, the departure prevention protrusion 216a prevents the coupling member 420 is randomly separated from the coupling groove 216.

The coupling member 420 is coupled to the coupling groove 216 formed in the storage container 200 and the through hole 322 formed in the printed circuit board 320 in a one-touch manner to accommodate the printed circuit board 320 in the storage container 200. Fix it to

Coupling member 420 according to the present embodiment includes a projection 422 and the coupling head 424.

The protrusion 422 fits into the through hole 322 of the printed circuit board 320 and the coupling groove 216 of the storage container 200, and the protrusion 422 includes at least two protrusions 422. In the present embodiment, each of the two projections 422 is further provided with a separation prevention portion 422a for suppressing the separation from the coupling groove 216. For example, each departure preventing part 422a according to the present embodiment is formed at an end of each protrusion 422.

The separation prevention portion 422a formed in each protrusion 422 may be coupled with the separation prevention protrusion 216a of the coupling groove 216 to further suppress the protrusion 422 from being separated from the coupling groove 216.

The coupling head 424 is formed on the protrusion 422 of the coupling member 420, and has a hemispherical shape. The coupling head 424 receives the printed circuit board 320 by pressing the printed circuit board 320 onto the bottom surface 210 of the storage container 200 while the protrusion 422 is coupled to the coupling hole 216. Make sure that it is firmly fixed in the container.

As described in detail above, by combining the printed circuit board and the storage container in a one-touch manner, the work time required to assemble the printed circuit board and the storage container is shortened, and the printed circuit board can be more firmly coupled to the storage container. Make sure

In the detailed description of the present invention described above with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art having ordinary skill in the art will be described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims (7)

A storage container accommodating a backlight assembly generating light and having a first coupling part formed on a rear surface thereof; A display panel which is accommodated in the storage container and converts the light into image light including information; and a second coupling part which is disposed on a rear surface of the storage container to apply a driving signal to the display panel and corresponds to the first coupling part. A display panel assembly including a formed printed circuit board; And And a coupling member coupled to the first coupling portion and the second coupling portion in a one-touch manner so as to couple the printed circuit board to the storage container. The method of claim 1, wherein the first coupling portion is a coupling groove, the second coupling portion is a through hole, and the coupling member is adapted to pressurize and fix the protrusion and the printed circuit board fitted into the coupling groove through the through hole. And a coupling head formed on the projection. 3. The display device of claim 2, wherein the protrusion is provided with a release preventing portion that prevents the protrusion from being separated from the coupling groove. The method of claim 1, wherein the first coupling portion is a projection, the second coupling portion is a through hole fitted into the projection, the coupling member is formed with a groove for coupling to the projection is fixed to the printed circuit board And a coupling head. 5. The display device of claim 4, wherein the protrusion is provided with a release preventing portion that prevents the coupling member from being separated from the protrusion. The protrusion of claim 1, wherein the first coupling part is a coupling groove, the second coupling part is a through hole, and the coupling member includes a protrusion in which at least two parts of the coupling member are fitted and fitted into the through hole and the coupling groove. And a coupling head formed on the protrusion to press the printed circuit board. The display apparatus of claim 6, wherein the protrusion is provided with a release preventing portion that prevents the protrusion from being separated from the coupling groove.

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