KR100459218B1 - Frame for Liquid Cristal Display - Google Patents

Abstract

The present invention relates to a frame for a liquid crystal display device, to provide a sufficient support strength without a separate reinforcement, to improve the assembling with the mold frame, and to provide an advantageous frame structure in terms of production.

To this end, the present invention, the liquid crystal panel for outputting an image; A backlight assembly comprising a plurality of diffusion sheets and prism sheets sequentially disposed on a rear surface of the liquid crystal panel, a light guide plate, a reflection sheet, and a lamp for emitting light to emit light over the entire surface of the liquid crystal panel; A mold frame having a rectangular frame shape in which the components of the liquid crystal panel and the backlight assembly are seated and supported; In the LCD module consisting of a frame that surrounds and supports the outer edge of each of the liquid crystal panel and the mold frame, wherein the frame is composed of a plurality of separate frame members are coupled from the side portion of the liquid crystal panel and the mold frame, each frame member They provide a frame for a liquid crystal display device, characterized in that when combined to each corner portion of the liquid crystal panel and the mold frame to form a rectangular frame as a whole.

Description

Frame for Liquid Cristal Display

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display (LCD), and more particularly, to a frame for a liquid crystal display device which is fixedly supported by surrounding the corners of each component of the LCD module constituting the liquid crystal display.

In general, a liquid crystal display (LCD), which is one of flat panel display devices, has a higher visibility than a cathode ray tube (CRT) and has a smaller average heat dissipation than a CRT having the same screen size. Along with Plasma Display Panel (FED) and Field Emission Display (FED), it has recently been in the spotlight as the next generation display device for monitors of mobile phones, computers, and televisions.

The liquid crystal display (LCD) generates a contrast by injecting a liquid crystal material, which is an intermediate between solid and liquid, between two thin glass plates that have been specially treated and changing the arrangement of liquid crystal molecules by a voltage difference between electrodes on the upper and lower glass plates. It has an operating principle for displaying an image.

In general, an LCD module constituting a liquid crystal display device includes a liquid crystal panel for outputting a screen, a backlight assembly for providing a light source to the liquid crystal panel at the rear of the liquid crystal panel, and receiving a video signal from the outside. And a support member such as a mold frame and a metal frame for supporting these components.

1 and 2 of the accompanying drawings showing in detail the components of the LCD module constituting the display device of the notebook computer, the image forming the backlight assembly 20 on the back of the liquid crystal panel 10 for outputting an image The lower diffusion sheets 21 and 23, the upper and lower prism sheets 22 and 24, the light guide plate 25, and the reflective sheet 26 are sequentially disposed to be mounted on the plastic mold frame 30 having a rectangular frame shape. In addition, a lamp 27 for emitting light is installed at one edge of the mold frame 30, and the liquid crystal panel 10, the backlight assembly 20, and the mold frame 30 are disposed above the mold frame 30. It is coupled to each other by a metal frame 40 of the rectangular frame shape to be coupled to each other.

However, the conventional liquid crystal display device as described above is formed of a metal frame 40 in which a structure for coupling the liquid crystal panel 10 and the backlight assembly 20 is integrally formed in a rectangular frame, and the metal frame is always a mold frame. Since it is coupled from the top of the (30) always have to have a 'b' cross section and accordingly, the support strength is weak, as shown in Figure 2 separate reinforcement made of SUS material along one side edge of the lower surface of the mold frame (30) The member 45 had to be attached, and as a result, the LCD module became heavy and the assembly work was complicated and the cost was increased.

In addition, in the process of fabricating the metal frame, pressing the cutting of the opening in the middle of the frame (piercing) is a waste of material, and since the metal frame is an integral type, using a transfer mold to manufacture the production cost There was also a lot of trouble.

Accordingly, the present invention has been made to solve the above problems, by improving the structure of the frame that combines the liquid crystal panel, the backlight assembly and the mold frame of the liquid crystal display device can ensure sufficient support strength without additional reinforcement In addition, the object of the present invention is to provide a frame for a liquid crystal display device which is improved in assembling with a mold frame and is advantageous in production.

1 is an exploded perspective view of an LCD module to which a conventional frame is applied

2 is a partial cross-sectional view showing the structure of the combined state of the LCD module of FIG.

3 is an exploded perspective view of an LCD module provided with a frame for a liquid crystal display according to the present invention;

4 is a front view of the LCD module of FIG.

5 is a cross-sectional view taken along the line I-I of FIG.

Figure 6 is a rear view from the rear of the mold frame to indicate the frame of the present invention is coupled to the mold frame of the LCD module

Explanation of Reference Symbols in Main Parts of Drawings

10: liquid crystal panel 20: backlight assembly

30: mold frame 35: coupling groove

410: first frame member 420: second frame member

411, 412, 421, 422

In order to achieve the above object, the present invention, a liquid crystal panel for outputting an image; A backlight assembly comprising a plurality of diffusion sheets and prism sheets sequentially disposed on a rear surface of the liquid crystal panel, a light guide plate, a reflection sheet, and a lamp for emitting light to emit light over the entire surface of the liquid crystal panel; A mold frame having a rectangular frame shape in which the components of the liquid crystal panel and the backlight assembly are seated and supported; In the LCD module consisting of a frame that surrounds and supports the outer edge of each of the liquid crystal panel and the mold frame, wherein the frame is composed of a plurality of separate frame members are coupled from the side portion of the liquid crystal panel and the mold frame, each frame member They provide a frame for a liquid crystal display device, characterized in that when combined to each corner portion of the liquid crystal panel and the mold frame to form a rectangular frame as a whole.

Hereinafter, an embodiment of a frame for a liquid crystal display according to the present invention will be described in detail with reference to the accompanying drawings.

For reference, in the following description, the mold frame of the LCD module will be described as the lower end of the lamp mounting portion, and the opposite side as the upper end.

As shown in FIG. 3 to FIG. 6, the LCD module is disposed at the front and outputs a screen, and is installed at the rear of the liquid crystal panel 10 to provide a light source to the liquid crystal panel 10. A backlight frame 20, a mold frame 30 made of a plastic material on which the liquid crystal panel 10 and the backlight assembly 20 are seated and supported, and the liquid crystal panel 10 and the mold frame 30. The first frame member 410 and the second frame member 420 of a metal material coupled to surround each corner portion of the.

The backlight assembly 20 includes a plurality of diffusion sheets 21 and 23 and prism sheets 22 and 24 disposed on the rear surface of the liquid crystal panel 10, a light guide plate 25, a reflection sheet 26, and the mold. It is composed of a lamp 27 which is a light emitting body is installed in the lower edge portion of the frame 30, this configuration of the backlight assembly 20 is the same as the conventional LCD module configuration.

When the first frame member 410 and the second frame member 420 are coupled to the corner portions of the liquid crystal panel 10 and the mold frame 30, the first frame member 410 and the second frame member 420 form a rectangular frame as a whole.

When the first frame member 410 and the second frame member 420 are coupled to corner portions of the liquid crystal panel 10 and the mold frame 30, respectively, two sides corresponding to each other form a square frame. It has a cross section and the other two sides have a 'a' cross section.

Accordingly, when the first frame member 410 and the second frame member 420 are coupled to the liquid crystal panel 10 and the mold frame 30, the first frame member 410 and the second frame member 420 are combined to surround the front and rear portions of the upper and lower edges thereof.

In addition, at each end of the first frame member 410 and the second frame member 420, coupling pieces 411, 412, 421, and 422 that are bent inwardly are integrally formed. Coupling pieces 411, 412, 421, 422 of the 420 are butt-coupled to the coupling grooves 35 respectively formed at both corners of the mold frame 30 to press-fit the first frame member 410. And the second frame member 420 are firmly coupled to the mold frame 30.

Tapes 430 are attached to upper and lower ends of the rear surface of the mold frame 30 to which the first frame member 410 and the second frame member 420 are coupled, along the first and second frame members 410 and 420. This further increases the supporting strength of the first and second frame members 410 and 420 so that the first and second frame members 410 and 420 are separated from the mold frame 30 even when the LCD module is impacted from the outside. To suppress it.

Since the first frame member 410 and the second frame member 420 do not require a punching operation to form an opening of a conventional frame, the first frame member 410 and the second frame member 420 may be manufactured by a progressive mold, which is cheaper than a transfer mold. Therefore, it is possible to reduce the waste of materials and the manufacturing cost.

The assembly process of the LCD module having the frame members 410 and 420 configured as described above will be briefly described. First, the lamp assembly 27 and the backlight assembly 20 are installed in the mold frame 30 and thereafter. The liquid crystal panel 10 is seated, and then the first frame member 410 and the second frame member 420 are assembled from the side portions of the mold frame 30, whereby the respective frame members 410 and 420 are assembled. Coupling pieces 411, 412, 421, 422 are coupled to the coupling grooves 35 provided on both sides of the mold frame 30.

When the first and second frame members 410 and 420 are coupled to the mold frame 30 as described above, the first and second frame members 410 and 420 may form corners of the liquid crystal panel 10 and the mold frame 30. In this case, the first and second frame members 410 and 420 coupled to the upper and lower edge portions of the mold frame 30 have a 'c' shaped cross section, thereby supporting the mold frame 30. The front and rear edges of the upper and lower edge portions are simultaneously wrapped and supported, thereby securing a supporting strength capable of firmly and supporting the mold frame 30 and the liquid crystal panel 10 without a separate reinforcing member.

Meanwhile, in the above-described embodiment, the first and second frame members 410 and 420 are coupled to the coupling pieces 411, 412, 421 and 422 by being inserted into and coupled to the coupling groove 35 of the mold frame 30. Although it was described as firmly coupled to 30, alternatively, a separate coupling means, for example, a hook and a locking groove coupled to the hook, may be provided in place and coupled to each frame member and the mold frame.

As described above, according to the present invention, since the mold frame of the LCD module and the metal frame supporting the liquid crystal panel are not integrally formed and are formed of a plurality of divided frame members, the frame can be assembled from the side of the mold frame. The cross section of the frame member can be freely formed in a form advantageous for securing the supporting strength of the letter 'c', etc. As a result, sufficient support strength can be secured without using a separate reinforcement as in the prior art, so that the weight of the liquid crystal display device It can reduce and improve the assemblability.

In addition, even in manufacturing the respective frame members, it is possible to manufacture by using a progressive mold, which is cheaper than the transfer mold, because a conventional drilling operation for forming the opening of the frame is not required, thereby reducing waste of materials. It also has the advantage of reducing manufacturing costs.

Claims (3)

A liquid crystal panel for outputting an image; A backlight assembly comprising a plurality of diffusion sheets and prism sheets sequentially disposed on a rear surface of the liquid crystal panel, a light guide plate, a reflection sheet, and a lamp for emitting light to emit light over the entire surface of the liquid crystal panel; A mold frame having a rectangular frame shape in which the components of the liquid crystal panel and the backlight assembly are seated and supported; In the LCD module consisting of a frame that surrounds and supports the outside of each corner of the liquid crystal panel and the mold frame, The frame is composed of two separate frame members, and each frame member is coupled to each corner portion of the liquid crystal panel and the mold frame to have a single rectangular frame as a whole. The other two sides of the frame for the liquid crystal display device, characterized in that to form a '-' cross-section. delete The method of claim 1, wherein each end of the frame member is formed integrally bent inwardly coupled pieces, the mold frame is characterized in that the coupling grooves are formed in which the coupling pieces of each of the frame members are joined together to be coupled together. Frame for liquid crystal display device.