KR20110094395A - Display device - Google Patents

Abstract

PURPOSE: A display device is provided to realize slim by removing a cover glass. CONSTITUTION: A display device includes as follows. A display panel(110) includes an upper substrate(111) and a lower substrate(112). A polarizer is arranged on the display panel. A front cover includes a first frame(101) which is arranged with an edge area of the lower substrate and includes a second frame(102) which is arranged in parallel with a side surface of the display panel and is expanded from a first frame. A buffer member(105) is arranged between an edge area of the first frame and the lower substrate. The buffer member contacted with an upper surface of an edge area of the lower substrate and a lower surface of the first frame.

Description

Display device {DISPLAY DEVICE}

Embodiments relate to a display device, and more particularly, to a display device capable of realizing a slimmer configuration.

Cathode ray tube (CRT), one of the widely used display devices, is mainly used for monitors such as TVs, measuring devices, and information terminal devices, but the size and weight of electronic products are reduced due to the weight and size of CRT itself. Could not actively respond to the response.

Therefore, in the trend of miniaturization and weight reduction of various electronic products, CRT has a certain limit in weight and size, and is expected to replace the liquid crystal display (LCD) and gas discharge using electro-optic effects. Plasma Display Panel (PDP) and Electro Luminescence Display (ELD) using the electroluminescent effect, and the like, among them, researches on liquid crystal displays are being actively conducted.

BACKGROUND ART Liquid crystal display devices have tended to be gradually widened due to their light weight, thinness, and low power consumption. Accordingly, in order to meet the needs of users, liquid crystal display devices are progressing in the direction of large area, thinning, and low power consumption.

BACKGROUND ART A liquid crystal display device is a display device that displays an image by controlling an amount of light passing through a liquid crystal, and is widely used for advantages such as thinning and low power consumption.

Unlike the CRT, the liquid crystal display is not a display device that emits light by itself, and thus, a back light unit including a separate light source is provided on the rear surface of the liquid crystal display panel to provide light for visually representing an image. .

The backlight unit is divided into an edge method and a direct method according to the position of the light source.

The edge type backlight unit is mainly applied to a relatively small liquid crystal display device such as a monitor of a laptop computer and a desktop computer, and has good light uniformity, a long life, and an advantage in thinning a liquid crystal display device. .

The direct type backlight unit began to be developed mainly as the size of the liquid crystal display device became larger than 20 inches, and a plurality of light sources were disposed on the lower surface of the diffuser plate to direct light directly to the front of the liquid crystal display panel. will be. Such a direct type backlight unit is mainly used for a large screen liquid crystal display device requiring high luminance because the light utilization efficiency is higher than that of the edge method.

Referring to FIG. 1, since a cover glass 10 is present on the display panel 110 in a frameless liquid crystal display device of the conventional liquid crystal display device, it is difficult to implement a slimmer thickness. . In addition, the cover glass 10 supported by the front cover 100 has a problem that the material cost is increased as tempered glass.

In order to solve the above problem, the embodiment is to provide a display device that can be slimmed by removing the cover glass.

A display device according to an embodiment includes a display panel including an upper substrate and a lower substrate; A first polarizer disposed on the display panel; A front cover including a first frame disposed to overlap an edge area of the lower substrate and a second frame extending from the first frame and arranged in parallel with a side of the display panel; And a buffer member disposed between the first frame and the edge region of the lower substrate.

In addition, in the display device according to another exemplary embodiment, the first polarizer may be disposed on the first frame.

In addition, in the display device according to another exemplary embodiment, the first polarizer may overlap the entirety of the first frame.

The display device according to the exemplary embodiment can reduce the cover glass by disposing the first frame of the front cover to overlap the edge of the lower substrate of the display panel, thereby realizing slimming. In addition, the material cost can be reduced by removing the cover glass, thereby reducing the cost of manufacturing the display device.

In addition, the display panel may be prevented from being damaged by the front cover by disposing the buffer member between the first frame of the front cover and the edge of the lower panel of the display panel.

The screen may be further enlarged by removing the cover glass and arranging the first polarizer on the first frame of the front cover, and the display panel may be damaged due to impact or damage from the outside due to the first polarizer. It can protect against damage.

1 is a cross-sectional view illustrating a part of a display device including a conventional cover glass.
2 is an exploded perspective view illustrating a display device according to an exemplary embodiment.
3 is a cross-sectional view illustrating a cross section taken along the II ′ direction in FIG. 2.

In the description of the embodiments, each panel, member, frame, sheet, plate, or substrate is formed on or under the "on" of each panel, member, frame, sheet, plate, 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, side 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 the sake of explanation and does not mean the size actually applied.

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

2 is an exploded perspective view illustrating a display device according to an exemplary embodiment. 3 is a cross-sectional view illustrating a cross section taken along the line II ′ in FIG. 2.

2 and 3, a display device according to an embodiment includes a display panel 110 displaying an image, a support main 115 supporting an edge of the display panel 110, and the display panel 110. It includes a backlight unit 120 is provided on the back of the) to provide light.

In addition, the display device according to the exemplary embodiment further includes a front cover 100 surrounding the edge of the top surface of the display panel 110 and coupled to the backlight unit 120.

The display panel 110 includes a thin film transistor (TFT) substrate (lower substrate 112) and a color filter substrate (upper substrate 111) bonded together so that a uniform cell gap is maintained to face each other. It includes a liquid crystal layer (not shown) interposed therebetween.

Although not illustrated in detail, the color filter substrate 111 and the thin film transistor substrate 112 will be described in detail. In the thin film transistor substrate 112, a plurality of gate lines and data lines cross each other to define pixels. A thin flim transistor (TFT) is provided at each of the crossing regions of the transistors, and is connected in a one-to-one correspondence with pixel electrodes mounted on each pixel. The color filter substrate 111 includes a color filter of R, G, and B colors corresponding to each pixel, a black matrix bordering each of them, and covering a gate line, a data line, a thin film transistor, and the like, and a common electrode covering all of them. Include.

The support main 115 is made of a mold of a rectangular frame shape. The support main 115 may be a mold made of plastic. In addition, the support main 115 may support an edge of the display panel 110.

The backlight unit 120 disposed below the display panel 110 may include a rectangular box shape bottom cover 180 having an upper surface opened, a metal PCB 160 disposed inside one side of the bottom cover 180, and It includes a plurality of light emitting diodes 150 mounted on the metal PCB 160.

In addition, the backlight unit 120 is disposed in parallel with the light emitting diodes 150 to convert point light into surface light, and is disposed under the light guide plate 140 to display light traveling under the light guide plate 140. The reflective sheet 170 reflects toward the panel 110, and the optical sheets 130 disposed on the light guide plate 140 to diffuse and focus light emitted from the light guide plate 140.

The backlight unit is not limited to an edge type in which the light emitting diode 150 is disposed on one side of the light guide plate 140, and includes a direct type in which the light emitting diode 150 is disposed below a diffusion plate (not shown). do.

The light guide plate 140 may be made of polymethyl methacrylate (PMMA). In addition, although not shown in detail in the drawings, the light emitting diode 150 may be formed in a wedge shape that becomes thinner away from the incident surface disposed. A prism pattern for refracting incident light in the direction of the optical sheets 130 may be formed on the rear surface of the light guide plate 140.

The optical sheets 130 may include a diffusion sheet 133 for diffusing light, a light condensing sheet 132 for condensing the diffused light, and a protective sheet 131 for protecting a light converging pattern formed on the light condensing sheet 132. It includes. The diffusion sheet 133, the light collecting sheet 132, and the protective sheet 131 are sequentially disposed on the light guide plate 140.

In the present specification, the polarizing plate includes a first polarizing plate POL1 and a second polarizing plate POL2. The first polarizer POL1 is disposed on the display panel 110, and the second polarizer POL2 is disposed on the lower surface of the display panel 110. Therefore, the polarizing plates described in the following claims correspond to the first polarizing plate POL1 and the second polarizing plate POL2, respectively.

That is, the first polarizing plate POL1 is disposed on the upper surface of the display panel 110, and the second polarizing plate POL2 is disposed on the lower surface of the display panel 110. The second polarizer POL2 polarizes the light beam through the optical sheets 130, and the first polarizer POL1 polarizes the light beam through the display panel 110.

In the display device according to an exemplary embodiment, the front cover 100 extends from the first frame 101 and the first frame 101 to overlap the edge area of the lower substrate 112, and the display panel ( And a second frame 102 disposed side by side with the side of 110.

The first frame 101 of the front cover 100 may be formed to face the upper substrate 111. That is, in order to remove the cover glass of the display device, the first frame 101 may be formed on the same line as the upper substrate 111 and overlap the edge of the lower substrate 112.

The lower surface of the first frame 101 is disposed to overlap the upper surface of the edge region of the lower substrate 112. In addition, the following buffer member 105 is inserted between the lower surface of the first frame 101 and the upper surface of the edge region of the lower substrate 112.

Therefore, the display device according to the exemplary embodiment can be slimmed by removing the cover glass by arranging the first frame 101 of the front cover 100 to overlap the edge of the lower substrate 112 of the display panel. In addition, the material cost can be reduced by removing the cover glass, thereby reducing the cost of manufacturing the display device.

In addition, the display device according to the exemplary embodiment includes a buffer member 105 disposed between the first frame 101 and the edge region of the lower substrate 112. Here, the edge region of the lower substrate 112 on which the buffer member 105 is disposed is a region in which a pad to which a driver integrated circuit (D-IC) is attached is disposed or there is no D-IC attachment pad. It includes an area.

The first frame 101 of the front cover 100 may be supported by the buffer member 105. That is, the buffer member 105 is in surface contact with the lower surface of the first frame 101 and the upper surface of the edge region of the lower substrate 112, the front cover 100 through the buffer member 105. The first frame 101 may be supported by the lower substrate 112. The buffer member 105 is not limited to a specific material as long as it is a material capable of absorbing vibrations and shocks from the outside.

Accordingly, the display panel 110 is damaged by the front cover 100 by interposing the buffer member 105 between the first frame 101 of the front cover 100 and the edge of the lower substrate 112 of the display panel. Can be prevented. That is, when the first frame 101 of the front cover 100 and the lower substrate 112 are in direct contact with each other, the lower substrate is damaged by an impact from the outside. In one embodiment, the buffer member 105 is provided. This can be prevented by arranging.

The first frame 101 of the front cover 100 may be formed to be spaced apart from the upper substrate 111, and the buffer member 105 may also be formed to be spaced apart from the upper substrate 111. Therefore, it is possible to prevent the first frame 101 and the buffer member 105 of the front cover 100 from damaging the upper substrate 111.

The buffer member 105 may be formed in a plurality of numbers, and the plurality of buffer members may be spaced apart from each other. That is, the buffer member 105 may be formed in a plurality of spaced apart at regular intervals in the edge region of the lower substrate (112). By arranging the buffer member 105 in plural numbers, the first frame 101 of the front cover 100 may be more effectively supported.

In one embodiment, the first polarizer POL1 is disposed on the first frame 101. In addition, the first polarizing plate POL1 may be formed to overlap the entirety of the first frame 101. That is, the lower surface of the first polarizing plate POL1 may be formed in surface contact with the entire upper surface of the first frame 101.

Therefore, the conventional cover glass is removed, and the screen is further enlarged by disposing the first polarizing plate POL1 on the first frame 101 of the front cover 100, and the first polarizing plate POL1. As a result, the display panel 110 may be protected from damage due to impact or damage from the outside.

In addition, since the first polarizing plate POL1 is almost opaque, the driver integrated circuit, the display panel, and the like inside the display device may not be visible from the outside. That is, the appearance quality may be improved by using the first polarizing plate POL1 of the opaque material.

In the present specification, the front cover 100 serves as a top case when the display module includes both a top case and a bottom cover, and serves as an upper system cover when the top case and the barcom cover are removed for slimming. Do it.

Although the above description has been made with reference to 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 should not be 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 embodiments can be modified and implemented. 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.

Claims (6)

A display panel including an upper substrate and a lower substrate;
A polarizer disposed on the display panel;
A front cover including a first frame disposed to overlap an edge area of the lower substrate and a second frame extending from the first frame and arranged in parallel with a side of the display panel; And
And a buffer member disposed between the first frame and an edge region of the lower substrate. The method of claim 1,
And the buffer member is in surface contact with a lower surface of the first frame and an upper surface of an edge area of the lower substrate. The method of claim 1,
And a lower surface of the polarizer overlaps the entire upper surface of the first frame. The method of claim 1,
The buffer member is spaced apart from the upper substrate. The method of claim 1,
And a plurality of buffer members, and the plurality of buffer members are spaced apart from each other. The method of claim 1,
And a separate polarizer disposed under the display panel.

Images