KR20100025174A - Display device - Google Patents

Abstract

PURPOSE: A display device is provided to receive two mold frames using one chassis, thereby spending a small amount of costs to form the display device. CONSTITUTION: A display device includes the first mold frame, the second mold frame, and the second receiving unit(102). The first mold frame has a square frame shape and receives the first backlight assembly and the first liquid crystal panel. The second mold frame is arranged under the first mold frame. The second receiving unit receives the first receiving unit(101) receiving the first mold frame and the second mold frame.

Description

Display {DISPLAY DEVICE}

An embodiment relates to a display device.

As information processing technology develops, display devices such as LCD, PDP and AMOLED are widely used.

In particular, such display devices may display an image by using two panels, and members for supporting or guiding such panels are required.

Embodiments provide a display device that can accommodate two mold frames using one chassis and has improved strength.

A display device according to an embodiment includes a first mold frame; A second mold frame disposed below the first mold frame; And a chassis including a first accommodating part accommodating the first mold frame and a second accommodating part accommodating the second mold frame.

The display device according to the exemplary embodiment receives the first mold frame and the second mold frame by the first accommodating part and the second accommodating part, respectively.

Accordingly, the display device according to the exemplary embodiment may accommodate two mold frames using one chassis. Therefore, a small cost can be consumed to form the display device according to the embodiment.

In addition, the chassis may have a bent or curved shape to form the first accommodating portion and the second accommodating portion. That is, the chassis may support a side of the first mold frame or the second mold frame and may be bent or curved.

Thus, the chassis has improved strength, and the display device according to the embodiment is resistant to physical shocks such as external pressure.

In the description of the embodiments, each panel, member, frame, sheet, part, or substrate is formed on or under the "on" of each panel, member, frame, sheet, part, or substrate, and the like. When described as being "in" and "under" includes both those that are formed "directly" or "indirectly" through other components. In addition, the criteria for the top or bottom of each component will be described with reference to the drawings. The size of each component in the drawings may be exaggerated for description, and does not mean a size that is actually applied.

1 is an exploded perspective view illustrating a liquid crystal display according to an embodiment. FIG. 2 is a cross-sectional view illustrating a cross section of the chassis cut along the line AA ′ in FIG. 1. FIG. 3 is a cross-sectional view illustrating a cross section of the liquid crystal display device taken along the line AA ′ in FIG. 1.

1 and 2, the liquid crystal display device may include a chassis 100, a first mold frame 210, a second mold frame 220, a first backlight assembly 300, a second backlight assembly 400, The first liquid crystal panel 500 and the second liquid crystal panel 600 are included.

The chassis 100 includes the first mold frame 210, the second mold frame 220, the first backlight assembly 300, the second backlight assembly 400, and the first liquid crystal panel 500. And the second liquid crystal panel 600.

Examples of materials that can be used as the chassis 100 include metals and the like.

The chassis 100 includes a first support part 110, a second support part 120, and a third support part 130.

The first support part 110 has a plate shape and is disposed between the first mold frame 210 and the second mold frame 220. The first support part 110 supports the bottom surfaces of the first mold frame 210 and the second mold frame 220.

The second support part 120 extends upward from the first support part 110. The second support part 120 extends bent or curved at 90 ° from the first support part 110.

The second support part 120 is disposed on the side of the first mold frame 210. The second support part 120 supports the side surface of the first mold frame 210.

First fastening grooves 121 for fastening the first mold frame 210 are formed in the second support part 120.

The third support part 130 extends downward from the second support part 120. That is, the third support part 130 is bent or curved by 180 ° from the end of the second support part 120 and extends.

The third support part 130 faces the second support part 120 and is disposed on side surfaces of the first mold frame 210 and the second mold frame 220. The third support part 130 supports the side surface of the second mold frame 220.

Second fastening grooves 131 for fastening the second mold frame 220 are formed in the third support part 130.

The first to third support parts 130 are integrally formed. That is, the first to third support parts 130 may be formed by bending or bending one metal plate.

In addition, a first accommodating part 101 for accommodating the first mold frame 210 is formed by the first support part 110 and the second support part 120.

That is, the first support part 110 supports the bottom surface of the first mold frame 210, and the second support part 120 supports the side surface of the first mold frame 210. The first accommodating part 101 accommodates the first mold frame 210.

In addition, the second support part 102 for accommodating the second mold frame 220 is formed by the first support part 110 and the third support part 130.

That is, the first support part 110 supports the bottom surface of the second mold frame 220, and the third support part 130 supports the side surface of the second mold frame 220. The accommodation part accommodates the second mold frame 220.

The first mold frame 210 is disposed on the first support part 110. The first mold frame 210 is disposed inside the first accommodating part 101.

The first mold frame 210 has a rectangular frame shape and accommodates the first backlight assembly 300 and the first liquid crystal panel 500.

The first mold frame 210 includes a first fastening protrusion 211. The first fastening protrusion 211 is inserted into the first fastening groove 121 and protrudes from the side surface of the first mold frame 210.

That is, the first fastening protrusion 211 is inserted into the first fastening groove 121, so that the first mold frame 210 is fastened to the second support part 120.

The second mold frame 220 is disposed below the first support part 110. The second mold frame 220 is disposed inside the second accommodating part 102.

The second mold frame 220 has a rectangular frame shape and accommodates the second backlight assembly 400 and the second liquid crystal panel 600.

The second mold frame 220 includes a second fastening protrusion 221. The second fastening protrusion 221 is inserted into the second fastening groove 131 and protrudes from the side surface of the second mold frame 220.

That is, the second fastening protrusion 221 is inserted into the second fastening groove 131, so that the second mold frame 220 is fastened to the second support part 120.

Alternatively, the first and second mold frames 210 and 220 may be attached to the chassis 100 by an adhesive such as a double-sided tape.

Examples of the material used for the first and second mold frames 210 and 220 may include plastic or reinforced plastic.

The first backlight assembly 300 is disposed inside the first mold frame 210. The first backlight assembly 300 generates light and emits the light toward the first liquid crystal panel 500.

The first backlight assembly 300 includes a first reflective sheet 310, a first light guide plate 320, a first light emitting diode 330, and a first optical sheet 340.

The first reflective sheet 310 is disposed on the first support part 110 and reflects light generated from the first light emitting diode 330 upward.

The first LGP 320 is disposed on the first reflective sheet 310 and receives light emitted from the first light emitting diode 330 and emits the light upward through reflection, refraction, and scattering.

The first light emitting diode 330 is disposed on a side surface of the second light guide plate 420 and emits light toward the second light guide plate 420.

The first optical sheet 340 is disposed on the first light guide plate 320 and improves characteristics of light passing through the first optical sheet 340.

The second backlight assembly 400 is disposed inside the second mold frame 220. The second backlight assembly 400 generates light and emits the light toward the second liquid crystal panel 600.

The second backlight assembly 400 includes a second reflective sheet 410, a second light guide plate 420, a second light emitting diode 430, and a second optical sheet 440.

The second reflecting sheet 410 is disposed under the first support part 110 and reflects light generated from the second light emitting diode 430 upward.

The second light guide plate 420 is disposed under the second reflective sheet 410 and receives light emitted from the second light emitting diode 430 and exits upward through reflection, refraction, and scattering.

The second light emitting diode 430 is disposed on a side surface of the second light guide plate 420 and emits light toward the second light guide plate 420.

The second optical sheet 440 is disposed under the second light guide plate 420 to improve the characteristics of the light passing through.

The first liquid crystal panel 500 is disposed inside the first mold frame 210 and is disposed on the first backlight assembly 300.

The first liquid crystal panel 500 displays an image by adjusting the intensity of light passing through each pixel. The first liquid crystal panel 500 displays an image upward.

The second liquid crystal panel 600 is disposed inside the second mold frame 220 and is disposed below the second backlight assembly 400.

The second liquid crystal panel 600 displays an image by adjusting the intensity of light passing through in units of pixels. The second liquid crystal panel 600 displays an image downward.

The liquid crystal display according to the exemplary embodiment may accommodate two mold frames using one chassis 100 and may accommodate two liquid crystal panels.

Accordingly, the liquid crystal display according to the embodiment may be manufactured at a lower cost than the liquid crystal display including the two chassis 100.

In addition, the second support part 120 and the third support part 130 have a folded or curved structure. That is, the chassis 100 has a hemming structure.

Thus, the chassis 100 has improved strength, and the liquid crystal display according to the embodiment is resistant to physical impact.

That is, since the chassis 100 of the hemming structure supports the side surface of the first mold frame 210, it is less bent by external pressure.

4 is an exploded perspective view illustrating a liquid crystal display according to another exemplary embodiment. FIG. 5 is a cross-sectional view illustrating a cross section taken along line BB ′ in FIG. 4. In this embodiment, the chassis, the third mold frame 230 and the third backlight assembly will be further described with reference to the above-described embodiment.

4 and 5, the liquid crystal display includes a third backlight assembly 700 instead of the first backlight assembly 300 and the second backlight assembly 400 described above.

That is, the liquid crystal display according to the present exemplary embodiment displays an image by one backlight assembly.

The third backlight assembly 700 is disposed inside the second mold frame 220. The backlight assembly is not disposed inside the third mold frame 230, and only the first liquid crystal panel 500 is disposed.

The third backlight assembly 700 includes a third light guide plate 710, a third light emitting diode 720, a third optical sheet 731, and a fourth optical sheet 732.

The third light guide plate 710 is disposed under the first support part 110. The third light guide plate 710 receives light emitted from the third light emitting diode 720 and emits upward and downward by reflection, scattering, and refraction.

The third light emitting diode 720 is disposed on a side surface of the third light guide plate 710 and emits light toward the third light guide plate 710.

The third optical sheet 731 is disposed on the third light guide plate 710, and the fourth optical sheet 732 is disposed under the third light guide plate 710. The third optical sheet 731 and the fourth optical sheet 732 improve the characteristics of the light passing through.

The first liquid crystal panel 500 is disposed inside the third mold frame 230. The first liquid crystal panel 500 is disposed on the third optical sheet 731. The height of the third mold frame 230 may correspond to the thickness of the first liquid crystal panel 500.

The second liquid crystal panel 600 is disposed inside the second mold frame 220. The second liquid crystal panel 600 is disposed under the fourth optical sheet 732.

The first liquid crystal panel 500 and the second liquid crystal panel 600 display an image by light emitted from the third backlight assembly 700.

In particular, a through hole 111 is formed in the first support part 110, and the light emitted upward from the third backlight assembly 700 passes through the through hole 111, and thus, the first liquid crystal panel. Incident on 500.

The first liquid crystal panel 500 displays an image using light passing through the through hole 111.

The liquid crystal display according to the present exemplary embodiment displays an image using one backlight assembly.

In addition, the liquid crystal display according to the present exemplary embodiment may display images in both directions using the first liquid crystal panel 500 and the second liquid crystal panel 600 having similar sizes.

Although the above description has been made based on the embodiments, these are merely examples and are not intended to limit the present invention. Those skilled in the art to which the present invention pertains may not have been exemplified above without departing from the essential characteristics of the present embodiments. It will be appreciated that many variations and applications are possible. For example, each component specifically shown in the embodiment can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

1 is an exploded perspective view illustrating a liquid crystal display according to an embodiment.

FIG. 2 is a cross-sectional view illustrating a cross section of the chassis cut along the line AA ′ in FIG. 1.

FIG. 3 is a cross-sectional view illustrating a cross section of the liquid crystal display device taken along the line AA ′ in FIG. 1.

4 is an exploded perspective view illustrating a liquid crystal display according to another exemplary embodiment.

FIG. 5 is a cross-sectional view illustrating a cross section taken along line BB ′ in FIG. 4.

Claims (9)

A first mold frame; A second mold frame disposed below the first mold frame; And And a chassis including a first accommodating part accommodating the first mold frame and a second accommodating part accommodating the second mold frame. The display device of claim 1, further comprising: a first display panel disposed inside the first mold frame; And a second display panel disposed inside the second mold frame. And the first display panel and the second display panel display images in opposite directions. The method of claim 2, further comprising a backlight assembly disposed inside the first mold frame, And the first display panel and the second display panel display an image by using light emitted from the backlight assembly. 2. The chassis of claim 1 wherein the chassis A first support part disposed between the first mold frame and the second mold frame; A second support part extending from the first support part and disposed on a side of the first mold frame; And And a third support part extending from the second support part and disposed on a side surface of the second mold frame. The display device of claim 4, wherein the first support part, the second support part, and the third support part are integrally formed. The method of claim 4, wherein the first receiving portion includes the first support portion and the second support portion, The second receiving part includes the first support part and the third support part. The display device of claim 4, wherein the first support part comprises a through hole. The method of claim 4, wherein the first mold frame is fastened to the second support portion, And the second mold frame is fastened to the third support part. The display apparatus of claim 1, further comprising: a first backlight assembly disposed inside the first mold frame; And And a second backlight assembly disposed inside the second mold frame.

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