KR101633125B1 - Display device - Google Patents

Abstract

The display device according to an exemplary embodiment of the present invention can reduce the size of the display panel by removing the cover glass by disposing the first frame of the front cover so as to overlap the edge of the display panel lower substrate. In addition, since the material cost can be reduced by removing the cover glass, the manufacturing cost of the display device can be reduced.
In addition, by disposing the buffer member between the first frame of the front cover and the edge of the display panel lower substrate, it is possible to prevent the display panel from being damaged by the front cover.
Further, there is an effect that the screen is further enlarged by removing the cover glass and disposing the first polarizer on the first frame of the front cover. Due to the external impact and damage caused by the first polarizer, It can protect against damage.

Description

Display device {DISPLAY DEVICE}

The embodiment relates to a display device, and more particularly, to a display device which can realize a slimness by simplifying the configuration.

A CRT (cathode ray tube), which is one of the widely used display devices, is mainly used for monitors such as a TV, a measurement device, and an information terminal device. However, due to the weight and size of the CRT itself, Could not respond positively to the response of

Therefore, in the trend of miniaturization and lightening of various electronic products, CRT has a certain limit in terms of weight and size, and is expected to be replaced with a liquid crystal display (LCD) using an electric field optical effect, a gas discharge A plasma display panel (PDP) using an electroluminescent effect, and an EL display device (ELD) using an electroluminescent effect. Among them, researches on a liquid crystal display device are being actively carried out.

Liquid crystal display devices are becoming more and more widespread due to features such as lightness, thinness, and low power consumption driving. Accordingly, the liquid crystal display device is proceeding in the direction of large-sized, thin, and low power consumption in response to the demand of the user.

2. Description of the Related Art [0002] A liquid crystal display device is a display device that displays an image by adjusting the amount of light transmitted through a liquid crystal, and is widely used because of its advantages such as thinness and low power consumption.

Since the liquid crystal display device is not a display device that emits light by itself, unlike a CRT, a backlight unit including a separate light source for providing light for visually expressing an image is provided on the back surface of the liquid crystal display panel .

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

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

The direct-type backlight unit has been developed mainly as the size of the liquid crystal display device starts to become larger than 20 inches, and a plurality of light sources are disposed on the lower surface of the diffusion plate to direct light directly to the front surface 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 which requires a high luminance because the utilization efficiency of light is higher than that of the edge type.

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

In order to solve the above-described problems, an embodiment of the present invention is to provide a display device capable of realizing slimming by removing a 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 so as to overlap the edge region of the lower substrate and a second frame extending from the first frame and arranged in parallel with a side surface of the display panel; And a buffer member disposed between the first frame and the edge region of the lower substrate.

In the display device according to another embodiment, the first polarizing plate is disposed on the first frame.

Further, in the display device according to another embodiment, the first polarizing plate overlaps with the entire first frame.

The display device according to an exemplary embodiment of the present invention can reduce the size of the display panel by removing the cover glass by disposing the first frame of the front cover so as to overlap the edge of the display panel lower substrate. In addition, since the material cost can be reduced by removing the cover glass, the manufacturing cost of the display device can be reduced.

In addition, by disposing the buffer member between the first frame of the front cover and the edge of the display panel lower substrate, it is possible to prevent the display panel from being damaged by the front cover.

Further, the screen is further enlarged by removing the cover glass and disposing the first polarizer on the first frame of the front cover, and the display panel is prevented from being damaged due to external impact or damage due to the first polarizer. It can protect against damage.

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

In the description of the embodiments, each panel, member, frame, sheet, plate or substrate is formed "on" or "under" of each panel, member, frame, sheet, Quot; on "and" under "include both being formed" directly "or" indirectly "

In addition, the criteria for the top, side, or bottom of each component are 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, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view showing a display device according to an embodiment. 3 is a cross-sectional view showing a section taken along a line I-I 'in Fig.

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

The display device according to one embodiment further includes a front cover 100 that surrounds the top edge of the display panel 110 and is 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 to each other so as to maintain a uniform cell gap, And a liquid crystal layer (not shown) interposed therebetween.

Although not shown in detail, the color filter substrate 111 and the TFT substrate 112 will be described in detail. The TFT substrate 112 defines pixels by intersecting a plurality of gate lines and data lines, A thin film transistor (TFT) is provided for each intersecting region of the pixels and connected in one-to-one correspondence with the pixel electrodes mounted on the respective pixels. The color filter substrate 111 includes color filters of R, G, and B colors corresponding to the respective pixels, a black matrix for covering the gate lines, the data lines, the thin film transistors, etc., .

The support main body 115 is made of a molded body of a rectangular frame shape. The support main 115 may be a plastic material. In addition, the support main 115 can support the edge of the display panel 110.

The backlight unit 120 disposed at the lower portion of the display panel 110 includes a bottom cover 180 having a rectangular box shape with an opened upper surface, a metal PCB 160 disposed inside one side of the bottom cover 180, And a plurality of light emitting diodes (150) mounted on the metal PCB (160).

The backlight unit 120 includes a light guide plate 140 disposed in parallel with the light emitting diode 150 to convert the light into a light spot and a light guide plate 140 disposed below the light guide plate 140 to display light A reflective sheet 170 that reflects light toward the panel 110 and optical sheets 130 disposed on the light guide plate 140 and diffusing and condensing the light emitted from the light guide plate 140.

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

The light guide plate 140 may be made of PMMA (polymethyl methacrylate). 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 as the distance from the incident surface where the light emitting diode 150 is disposed. A prism pattern for refracting the incident light toward the optical sheets 130 may be formed on the back surface of the light guide plate 140.

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

The polarizing plate herein includes a first polarizing plate POL1 and a second polarizing plate POL2. The first polarizing plate POL1 is disposed on the display panel 110 and the second polarizing plate POL2 is disposed on the lower surface of the display panel 110. [ Accordingly, the polarizing plates described in the claims below 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 thereof. The second polarizing plate POL2 polarizes a light beam transmitted through the optical sheets 130 and the first polarizing plate POL1 polarizes a light beam transmitted through the display panel 110. [

The front cover 100 includes a first frame 101 disposed to overlap with an edge region of the lower substrate 112 and a second frame 101 extending from the first frame 101, And a second frame 102 disposed side by side with the side surfaces of the first frame 110.

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

The lower surface of the first frame 101 is disposed to overlap the upper surface of the edge region of the lower substrate 112. 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 embodiment can reduce the thickness of the cover glass by arranging the first frame 101 of the front cover 100 to be overlapped with the edge of the display panel lower substrate 112, thereby realizing slimming. In addition, since the material cost can be reduced by removing the cover glass, the manufacturing cost of the display device can be reduced.

In addition, the display device according to one embodiment includes a buffer member 105 disposed between the first frame 101 and the edge region of the lower substrate 112. The edge region of the lower substrate 112 on which the buffer member 105 is disposed may be a region where a pad to which a driver integrated circuit (D-IC) is attached or a region where there is no D- Region.

The first frame 101 of the front cover 100 can 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, and the buffer cover 105 May be supported by the lower substrate 112. The buffer member 105 is not limited to a specific material as long as it can absorb vibrations and impacts from the outside.

The buffer panel 105 is interposed between the first frame 101 of the front cover 100 and the edge of the display panel lower substrate 112 so that the display panel 110 is damaged 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 external impact. In one embodiment, the buffer member 105, So that it can be prevented.

The first frame 101 of the front cover 100 is spaced apart from the upper substrate 111 and the buffer member 105 may 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 buffer members may be spaced apart from each other. That is, the buffer member 105 may be spaced apart from the edge region of the lower substrate 112 by a predetermined distance. The first frame 101 of the front cover 100 can be more effectively supported by disposing the buffer members 105 in a plurality of numbers.

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

Therefore, the conventional cover glass is removed and the first polarizing plate POL1 is disposed on the first frame 101 of the front cover 100, thereby further enlarging the screen. The first polarizing plate POL1, It is possible to protect the display panel 110 from being damaged due to external impact or damage.

In addition, since the first polarizer POL1 is a substantially opaque material, the driver integrated circuit, the display panel, and the like inside the display device can be prevented from being seen from the outside. That is, by using the first polarizer POL1 of the opaque material, the appearance quality can be improved.

In this specification, the front cover 100 serves as a top case when the display module includes both the top case and the bottom cover, and when the top case and the barcom cover are removed for slimming, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (6)

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

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