KR20060029559A - Display device - Google Patents

Abstract

A display device having improved reliability against shocks and the like is disclosed. The storage container includes a bottom surface having an accommodating groove formed on an outer surface thereof and sidewalls extending from an edge of the bottom surface so that a storage space is formed on the top of the bottom surface. The driving unit is disposed on an outer surface of the bottom surface of the storage container, and includes a driving element accommodated in the accommodation groove to generate a driving signal. The display panel is electrically connected to the driving unit to display an image by the driving signal. According to such a display device, when an external impact is applied, damage to the storage container and the driving element is prevented, thereby improving the reliability of the display device.

Display, Reliability, Display Panel, Storage Container, Printed Circuit Board, Drive Element, Storage Groove

Description

Display {DISPLAY DEVICE}

1 is an exploded perspective view of a display device according to an exemplary embodiment.

FIG. 2 is an exploded perspective view of the display device illustrated in FIG. 1.

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

<Description of Symbols for Main Parts of Drawings>

100: display panel 110: first substrate

120: second substrate 200: drive unit

210: printed circuit board 220: drive element

300: storage container 310: side wall

320: bottom surface 321: storage groove

400: flexible circuit board 500: optical unit

510 light guide plate 520 lamp

530: lamp reflector 540: optical member

600: bottom chassis

The present invention relates to a display device, and more particularly, to a display device having improved reliability against external impacts. In general, various electronic devices such as mobile communication terminals, digital cameras, laptops, and monitors include a display device for displaying an image of data including an electrical signal format. Recently, a liquid crystal display device (LCD) having advantages of thin thickness and light weight has been widely used.

Recently, in order to reduce the size and thickness of the display device, thicknesses of the bottom and sidewalls of the storage container included in the display device are gradually reduced.

However, the display panel included in the display device is mostly supported by the step formed on the sidewall of the storage container. Therefore, when an external impact is applied to the display device, the side wall of the storage container may not be sufficiently strong, thereby reducing the reliability of the display panel.

On the other hand, the display device includes a driving unit for providing a panel driving signal to the display panel. The drive unit includes a printed circuit board and circuit components in the form of chips mounted on the printed circuit board. Circuit components are electrically connected with wiring formed on a printed circuit board.

The drive unit is not stored in a separate storage space, but is interposed between other components such as a storage container. In accordance with the trend toward miniaturization and thinning of the display device, the driving unit is assembled to be in close contact with other components.

Accordingly, there is a problem in that the circuit components and other components interfere with each other in the assembly process of the display device, thereby damaging the circuit components.

In addition, when an external shock is applied to the display device, a circuit component may fall off from the printed circuit board or damage may occur to an electrical connection with the printed circuit board.

Accordingly, the problem of improving the reliability of the display panel and the circuit components from external shocks is increasing while reducing the thickness and weight of the storage container according to the trend toward miniaturization and thinning of the display device.

Accordingly, the technical problem of the present invention is to solve such a conventional problem, and an object of the present invention is to form an accommodation groove in which a driving element is accommodated in a storage container, which is advantageous for thinning and miniaturization, while improving reliability for external impact. To provide a device.

According to an aspect of the present invention, a display device includes a bottom surface having an accommodation groove formed on an outer side thereof, and a storage space formed on an inner side surface opposite to an outer side surface of the bottom surface. A storage container including an extended sidewall, a driving unit including a driving element disposed on an outer surface of the bottom surface, the driving element accommodated in the storage groove and generating a driving signal, and stored in the storage space and electrically connected to the driving unit to drive the driving signal. A display device including a display panel displaying an image is provided.

According to such a display device, the storage container is advantageous in miniaturization and thinning of the display device, and greatly improves the reliability of the display panel and the driving element against impact.

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

1 is an exploded perspective view of a display device according to an exemplary embodiment.

Referring to FIG. 1, the display device according to the present exemplary embodiment includes a display panel 100, a driving unit 200, and a storage container 300.

The display panel 100 includes a first substrate 110, a second substrate 120, and a liquid crystal layer (not shown).

The first substrate 110 may include pixel electrodes arranged in a matrix, thin film transistors (TFTs) for applying driving voltages to the pixel electrodes, and signal lines for operating the thin film transistors (TFTs), respectively. )

The second substrate 120 has a somewhat smaller planar area than the first substrate 110 and is disposed to face the first substrate 110. The second substrate 120 includes a common electrode formed on a surface facing the pixel electrodes formed on the first substrate 110 and color filters disposed on the pixel electrode.

The liquid crystal layer (not shown) is interposed between the first substrate 110 and the second substrate 120. The liquid crystal layer changes the transmittance of light incident on the first substrate 110 or the second substrate 120 by an electric field formed between the pixel electrodes and the common electrode.

The driving unit 200 includes a printed circuit board 210 and a driving device 220.

The printed circuit board 210 outputs an image signal applied from the outside to the display panel 100 through a flexible circuit board to be described later.                     

The driving device 220 is mounted on the printed circuit board 210 and processes an image signal applied from the outside.

The storage container 300 may include the sidewall 310 and the bottom surface 320 to accommodate the display panel 100.

The side wall 310 extends from an inner side edge of the bottom surface 320, thereby forming an accommodation space on the top of the bottom surface 320.

The printed circuit board 210 on which the driving device 220 is mounted is disposed on an outer surface of the bottom surface 320 opposite to the inner surface of the bottom surface 320. In this embodiment, the driving device 220 disposed on the printed circuit board 210 is disposed. ) Is disposed to face the bottom surface 320.

An accommodation groove 321 is formed in the bottom surface 320 of the storage container 300 to arrange the driving device 220 on the bottom surface 320. The receiving groove 321 may have a groove shape or a recess shape, and the depth of the receiving groove 321 is preferably higher than the height of the driving element 220 and smaller than the thickness of the bottom surface 320.

In addition, a plurality of accommodating grooves 321 may be formed corresponding to positions of the driving elements 220 disposed on the printed circuit board 210.

In this embodiment, the drive element 220 is accommodated in the receiving groove 321 formed on the outer surface of the bottom surface 320, it is possible to prevent the damage of the drive element 220 from the external impact. In addition, when the accommodating groove 321 formed in the accommodating container 300 has a through hole shape, the strength of the sidewall 310 and the bottom surface 320 may be greatly reduced, and thus, the accommodating container 300 may be used. The storage groove 321 formed in the groove may have a groove shape such as a groove or a recess to further strengthen the rigidity of the storage container 300.

The flexible circuit board 400 electrically connects the display panel 100 and the printed circuit board 210. As a result, the driving signal output from the printed circuit board 210 is transmitted to the display panel 100.

The flexible circuit board 400 includes wiring and an insulating layer for electrical connection, and is made of a flexible material to be bent. One side of the flexible circuit board 400 is electrically connected to the first substrate 110, and the other side of the flexible circuit board 400 facing the one side of the flexible circuit board 400 is electrically connected to the printed circuit board 210.

FIG. 2 is an exploded perspective view of the display device illustrated in FIG. 1.

Referring to FIG. 2, the display device according to the exemplary embodiment may further include an optical unit 500 and a bottom chassis 600.

The optical unit 500 includes a light guide plate 510, a lamp 520, a lamp reflector 530, and an optical member 540.

The light guide plate 510 is formed of, for example, a plastic material having a rectangular plate shape, high mechanical strength, excellent chemical resistance, and transparent, and having excellent transmittance to visible light. The light guide plate 510 is accommodated in the storage container 300.

The lamp 520 generates light provided to the display panel 100 and is interposed between the light guide plate 510 and one sidewall 310 of the storage container 300.

The lamp reflector 530 surrounds a part of the lamp 520 such that the light generated by the lamp 520 is directed to the light guide plate 510. The lamp reflector 530 further improves the utilization efficiency of the light generated from the lamp 520.

The optical member 540 is disposed between the bottom surface 320 of the storage container 300 and the light guide plate 510 and between the light guide plate 510 and the display panel 100 to generate optical characteristics of light generated by the lamp 520. To improve.

The optical member 540 is disposed between, for example, the bottom surface 320 of the storage container 300 and the light guide plate 510 to reflect the light leaked to the bottom surface 320 back toward the light guide plate 510. 541. Alternatively, the optical member 540 is disposed between the light guide plate 510 and the display panel 100 to diffuse light 542 to diffuse light, and prism sheet 543 to improve the vertical luminance of light through reflection and refraction. It includes. The optical member 540 may further include, for example, a protective sheet (not shown) for protecting the prism sheet 543.

The bottom chassis 600 includes a bottom surface and sidewalls to accommodate the storage container 300. The bottom chassis 600 may be formed of a metal material to protect the display device and to release heat generated from the lamp 520.

The display device according to the present exemplary embodiment protects the display panel 100 stored in the storage container 300 and prevents the display panel 100 from being separated from the storage container 300. It may further include a top chassis (not shown) to be coupled with.

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

2 and 3, the assembling procedure of the display device will be described.                     

First, the reflective sheet 541 and the light guide plate 510 are sequentially stored in the storage container 300. Next, the lamp reflector 530 in which the lamp 520 is accommodated is interposed between the light guide plate 510 and one sidewall 310 of the storage container 300. Subsequently, the diffusion sheet 542 and the prism sheet 543 are mounted on the light guide plate 510.

Thereafter, the display panel 100 is mounted on the stepped portion formed on the sidewall 310 of the storage container 300. In this case, the flexible circuit board 400 connected to the display panel 100 is bent along one sidewall 310 of the storage container 300, and as a result, the printed circuit board 210 connected to the flexible circuit board 400 is accommodated. The outer surface of the bottom surface 320 of the container 300 is disposed. At this time, the driving device 220 mounted on the printed circuit board 210 is accommodated in the receiving groove 321 formed on the outer surface of the bottom surface (320). Subsequently, the storage container 300 is accommodated in the bottom strabisce 600 to complete the assembly of the display device.

According to the above-described display device, since the upper end of the side wall 310 of the storage container is closed, the storage container 300 ensures sufficient rigidity for supporting the display panel 100 and protects the drive element from external impact. can do.

In the present embodiment, the display device displayed in only one direction has been described. However, the present invention can be applied to the display device displayed in both directions, especially when the thickness of the storage container becomes smaller.

As described above, according to the present invention, since the storage container has a groove-shaped storage space such as a groove or a recess for accommodating the drive element, the storage container has a storage space in the form of a through hole. Provided is a display device having greatly improved reliability of a display panel and a driving element.

In addition, since the driving element is accommodated in the accommodation groove formed on the outer surface of the bottom surface of the storage container, it is possible to provide a display device that is advantageous in miniaturization and thinning.

In the detailed description of the present invention described above with reference to a preferred embodiment of the present invention, those skilled in the art or those skilled in the art having ordinary knowledge in the scope of the invention 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 (4)

A storage container including a bottom surface having an accommodation groove formed on an outer surface thereof, and a side wall extending from the inner surface edge of the bottom surface such that an accommodation space is formed on an inner surface portion of the bottom surface opposite to the outer surface of the bottom surface; A driving unit disposed on the outer surface and including a driving element accommodated in the accommodation groove to generate a driving signal; And And a display panel stored in the storage space and electrically connected to the driving unit to display an image according to the driving signal. The display device of claim 1, wherein an optical unit configured to provide light to the display panel is disposed between the display panel and the bottom surface. The display as claimed in claim 2, wherein the optical unit includes a light guide plate disposed between the display panel and the bottom surface and a lamp interposed between the sidewall and the light guide plate to provide light to the light guide plate. Device. The display device of claim 1, wherein the driving unit and the display panel are electrically connected by a flexible circuit board.

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