KR20160000114A - Liquid crystal display device - Google Patents

Abstract

The present invention relates to a liquid crystal display device. The liquid crystal display device can prevent contact between a cover shield and a driving circuit element mounted on a printed circuit board as bent toward and closely contacting the rear of a cover bottom. The present invention can prevent the cover shield from coming in contact with the driving circuit board mounted on the printed circuit board, even when the cover shield is squashed, by forming a support end on the cover shield coupled to the rear of the cover bottom. Accordingly, electrical interference of the driving circuit element, caused by the contact between the cover shield made of a metal material and the driving circuit element, can be prevented, so deterioration in display quality of the liquid crystal display device, which is generated due to a wave pattern or the like, can be prevented.

Description

[0001] Liquid crystal display device [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display (LCD), and more particularly, to a liquid crystal display (LCD) device capable of preventing a contact between a driver circuit element mounted on a printed circuit board and a cover shield.

A liquid crystal display device (LCD), which is advantageous for moving picture display and has a large contrast ratio and is actively used in TVs and monitors, exhibits optical anisotropy and polarization properties of a liquid crystal, And the like.

Such a liquid crystal display device has a liquid crystal panel in which a liquid crystal panel is interposed between two adjacent substrates through a liquid crystal layer as an essential component and changes the alignment direction of the liquid crystal molecules in an electric field in the liquid crystal panel to realize a difference in transmittance do.

However, since the liquid crystal panel does not have its own light emitting element, a separate light source is required to display the difference in transmittance as an image. To this end, a backlight having a light source is disposed on the back surface of the liquid crystal panel.

1 is a cross-sectional view of a liquid crystal display including a backlight unit of a general edge type using an LED as a light source.

As shown in the figure, a liquid crystal display device including a backlight unit 20 of a general edge type includes a liquid crystal panel 10, a backlight unit 20, a guide panel 30, a cover bottom 50, 40).

The liquid crystal panel 10 is constituted by first and second substrates 12 and 14 which are in contact with each other with a liquid crystal layer interposed therebetween, which plays a key role in image display.

And reference numerals 19a and 19b denote polarizers attached to the front and back surfaces of the liquid crystal panel 10 to control the polarization direction of light, respectively.

A backlight unit 20 is provided behind the liquid crystal panel 10.

The backlight unit 20 includes an LED assembly 29 arranged along the longitudinal direction of at least one edge of the guide panel 30 and composed of a PCB 29b on which a plurality of LEDs 29a and LEDs 29a are mounted, A reflector 25 of white or silver color resting on the bottoms 50 and a light guide plate 23 resting on the reflector 25 and an optical sheet 21 located thereon.

The liquid crystal panel 10 and the backlight unit 20 are covered with a top cover 40 covering the top edge of the liquid crystal panel 10 with the edges thereof being surrounded by a rectangular guide panel 30, The cover bottoms 50 are integrally joined to each other through the guide panel 30.

Although not shown in the drawing, a printed circuit board is connected to a flexible circuit board or a tape carrier package (TCP) via a printed circuit board along one edge of the liquid crystal panel 10, The cover shield 50 is disposed on the rear surface of the cover bottom 50 in order to protect the printed circuit board which is brought into close contact with the back surface of the cover bottom 50. As shown in FIG.

However, since the cover shield is made of a metal material, it is important that the contact with the driving circuit elements mounted on the printed circuit board does not occur. Currently, when the cover shield is pressed, the cover shield and the driving circuit elements There is no suitable means for preventing the contact of the contact surface.

Therefore, when the area between the cover shield and the driving circuit elements is widened, a problem of acting as an element for increasing the overall thickness of the liquid crystal display device may be caused. have.

Therefore, even if the thickness of the liquid crystal display device is not increased by the cover shield, even if the cover shield is pressed, it is necessary to conduct research to prevent the contact between the cover shield and the driving circuit elements mounted on the printed circuit board. to be.

It is a first object of the present invention to prevent contact between a cover shield and a driving circuit element mounted on a printed circuit board even if the cover shield is pressed.

The second object is to prevent the thickness of the liquid crystal display device from increasing.

The third object is to improve the rigidity of the cover shield.

In order to achieve the above object, the present invention provides a liquid crystal display device comprising: a liquid crystal panel having a printed circuit board connected through a connecting member; A backlight unit positioned below the liquid crystal panel; A cover bottom on which the backlight unit and the liquid crystal panel are mounted; And a cover shield which is assembled and fastened to the backside of the cover bottom to cover the printed circuit board which is brought into close contact with the backside of the cover bottom and is in close contact with the backside of the cover bottom, to provide.

At this time, the cover shield includes a bottom surface and a side surface of which the edge of the bottom surface is vertically bent upward, and the support end includes a first support portion vertically bent upward from the bottom surface, And a second support portion bent perpendicularly from the first support portion, wherein the second support portion is in close contact with the back surface of the cover bottom.

The side surface is provided with a fixing portion including a first fixing end extending from the side surface and a second fixing end bent perpendicularly from the first fixing end so as not to face the bottom surface, Wherein the side face has a first height, the first fixed end has a second height, and the first base has a third height corresponding to a sum of the first height and the second height, .

In this case, the printed circuit board and the liquid crystal panel are connected to each other through a plurality of connecting members, and the supporting end is located corresponding to a region between the plurality of connecting members, Respectively.

In addition, a groove is formed between the receiving end and the side surface of the cover shield, a first embossed hole is formed on the backside of the cover bottom, and a second embossed hole corresponding to the first embossed hole is formed on the bottom surface And the cover shield is assembled and fastened to the back side of the cover bottom through a screw penetrating the first and second embossed holes.

A guide panel for covering the backlight unit and the edge of the liquid crystal panel, and a top cover for covering the top edge and the side surface of the liquid crystal panel.

As described above, by forming the receiving end in the cover shield coupled to the back surface of the cover bottom according to the present invention, even if the cover shield is pressed, the cover shield is brought into contact with the driving circuit element mounted on the printed circuit board There is an effect that it can be prevented. As a result, it is possible to prevent electrical interference between the cover shield made of a metal material and the driving circuit element due to the contact between the driving circuit element and the liquid crystal display device, Can be prevented.

In addition, there is an effect that the rigidity of the cover shield itself is improved by the receiving end.

In addition, since the support end can be formed with a minimum area in the cover shield, it is possible to prevent the contact between the cover shield and the drive circuit element due to the pressing of the cover shield in the lightweight, thin type and narrow- There is an effect that can be done.

1 is a cross-sectional view of a liquid crystal display including a backlight unit of a general edge type using an LED as a light source.
2 is a perspective view schematically showing a liquid crystal display device according to an embodiment of the present invention.
Fig. 3 is a perspective view schematically showing a rear surface of the modular liquid crystal display device of Fig. 2; Fig.
4A is a perspective view schematically showing a cover shield according to an embodiment of the present invention.
Figure 4b is a cross-sectional view of Figure 4a.
5 is a cross-sectional view schematically illustrating a portion of FIG. 2 modularized;

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

FIG. 2 is a perspective view schematically showing a liquid crystal display device according to an embodiment of the present invention, and FIG. 3 is a perspective view schematically showing a rear surface of the modular liquid crystal display device of FIG.

As shown in the figure, a liquid crystal display according to an embodiment of the present invention includes a liquid crystal panel 110, a backlight unit 120, a guide panel 130, a top cover 140, and a cover bottom 150 .

For the sake of convenience, the backlight unit 120 is disposed behind the liquid crystal panel 110 under the assumption that the display surface of the liquid crystal panel 110 faces forward, The top cover 140 is positioned in front of the liquid crystal panel 110 and the cover bottom 150 is positioned on the back surface of the backlight unit 120 in a state in which the guide- And are integrated.

Let's take a closer look at each of these.

First, the liquid crystal panel 110 plays a key role in image display of a liquid crystal display device. The liquid crystal panel 110 includes a first substrate 112 and a second substrate 114 which are bonded to each other and a liquid crystal layer (Not shown).

Although not shown in the figure, a plurality of gate lines and data lines cross each other on the inner surface of a first substrate 112 called a lower substrate or an array substrate, pixels are defined, and a thin film transistor (TFT) : TFT) are connected in one-to-one correspondence with the transparent pixel electrodes formed in the respective pixels.

On the inner surface of the second substrate 114 called an upper substrate or a color filter substrate, color filters of red (R), green (G), and blue (B) And a black matrix for covering the gate lines, the data lines, and the thin film transistors.

In addition, color filters of red (R), green (G), and blue (B) colors and transparent common electrodes covering the black matrix are provided.

An upper and a lower alignment film (not shown) for determining the initial alignment direction of the liquid crystal are interposed at the boundary between the first and second substrates 112 and 114 and the liquid crystal layer (not shown) A seal pattern (not shown) is formed along the edges of the substrates 112 and 114 to prevent leakage of a liquid crystal layer (not shown) filled between the substrates 112 and 114.

Polarizing plates 119a and 119b (see FIG. 5) for selectively transmitting only specific light are attached to the outer surfaces of the first and second substrates 112 and 114, respectively.

A printed circuit board 117 is connected to the liquid crystal panel 110 via a connection member 116 such as a flexible circuit board or a tape carrier package (TCP) along one edge of the liquid crystal panel 110, The bottoms 150 are brought into close contact with each other.

Accordingly, when the thin film transistor selected for each gate line is turned on by the on / off signal of the thin film transistor which is transferred to the gate line, the liquid crystal panel 110 supplies the image signal And the alignment direction of the liquid crystal molecules is changed by the electric field between the pixel electrode and the common electrode which is generated thereby, and the difference in transmittance is shown.

In the liquid crystal display device according to the present invention, a backlight unit 120 is provided for supplying light from the rear surface of the liquid crystal display panel 110 so that the difference in transmittance of the liquid crystal panel 110 is externally expressed.

The backlight unit 120 includes an LED assembly 129 arranged along at least one longitudinal edge of the cover bottom 150, a reflection plate 125, a light guide plate 123 mounted on the reflection plate 125, And an optical sheet 121 positioned above the light guide plate.

The LED assembly 129 is a light source of the backlight unit 120 and is disposed at one side of the light guide plate 123 to face the light incident surface of the light guide plate 123. The LED assembly 129 includes a plurality of LEDs 129a, And a PCB 129b on which a plurality of LEDs 129a are mounted with a predetermined spacing.

The plurality of LEDs 129a emit light having colors of red (R), green (G), and blue (B) toward the front of the light guide plate 123, and the plurality of RGB LEDs 129a ) Can be turned on at once to realize white light by color mixing.

In particular, in recent years, a blue LED 129a including a blue LED chip having excellent luminous efficiency and brightness has been used for improving the luminous efficiency and brightness, and a phosphor such as yttrium aluminum garnet (YAG: Ce) doped with cerium, A blue LED 129a made of a yellow phosphor is used.

The blue light emitted from the LED 129a is mixed with the yellow light transmitted through the phosphor and emitted by the fluorescent material, thereby realizing white light.

The light guiding plate 123 through which the light emitted from the plurality of LEDs 129a is incident is formed such that the light incident from the LED 129a travels in the light guiding plate 123 by total reflection several times, And provides a surface light source to the liquid crystal panel 110.

The light guide plate 123 may include a pattern of a specific shape on the lower surface to supply a uniform surface light source. The pattern may be formed in various shapes such as an elliptical pattern, a polygon pattern, a hologram pattern, and the like in order to guide light incident into the light guide plate 123. The pattern is formed on the lower surface of the light guide plate 123 by a printing method or an injection method.

The reflection plate 125 is disposed on the back surface of the light guide plate 123 and reflects light passing through the back surface of the light guide plate 123 toward the liquid crystal panel 110 to improve the brightness of light.

The optical sheet 121 on the light guide plate 123 includes a diffusion sheet and at least one light condensing sheet and diffuses or condenses the light passing through the light guide plate 123 to provide a more uniform surface light source to the liquid crystal panel 110 Let it enter.

The liquid crystal panel 110 and the backlight unit 120 are modularized through the top cover 140, the guide panel 130 and the cover bottom 150. The top cover 140 is disposed on the top edge of the liquid crystal panel 110, So as to cover the side surface.

The top cover 140 includes a first horizontal portion (not shown) that covers the top edge of the liquid crystal panel 110, and a second horizontal portion that covers the top edge of the liquid crystal panel 110 And a first vertical part 143 which is perpendicular to the first horizontal part 141 and covers a side surface of the liquid crystal panel 110 so as to open the front surface of the top cover 140, So as to display an image.

The guide panel 130 has a rectangular shape for supporting the edges of the liquid crystal panel 110 and covering the edge of the backlight unit 120. The guide panel 130 includes a second vertical part 131 and a second vertical part 131, And a second horizontal portion 133 for separating the position of the liquid crystal panel 110 and the backlight unit 120 from the vertical portion 131.

The liquid crystal panel 110 is attached and fixed on the second horizontal portion 133 through a bonding pad (not shown) such as a double-sided tape.

The guide panel 130 is mounted on the cover bottom 150. The cover bottom 150 includes a horizontal surface 151 and an edge portion 153 having a vertically bent edge.

The guide panel 130 and the cover bottom 150 and the top cover 140 are formed by laminating the top edges of the liquid crystal panel 110 and the backlight unit 120 in a state in which the edges of the liquid crystal panel 10 and the backlight unit 120 are covered with the guide panel 130 A cover top 140 covering the rear surface of the backlight unit 120 and a cover bottom 150 covering the back surface of the backlight unit 120 are combined at the front and rear sides to be modularly integrated through the guide panel 130. [

Here, the top cover 140 may be referred to as a case top or a top case, and the guide panel 130 may be referred to as a support main or main support or a mold frame. The cover bottom 150 may be referred to as a bottom cover or a bottom cover I will.

At this time, in order to realize a lightweight and thin liquid crystal display device which is recently required in the liquid crystal display device having the above-described structure, the top cover 140 can be eliminated. The liquid crystal display device can be made light and thin by eliminating the top cover 140, and the process can be simplified.

In addition, the elimination of the top cover 140 made of a metal material may reduce the process cost.

The cover shield 200 is coupled to the cover bottom 150 so as to protect the printed circuit board 117 which is brought into close contact with the back surface of the cover bottom 150. The cover shield 150 is formed on the cover bottom 150, And is spaced apart from the driver circuit elements 117a (see FIG. 5) mounted on the printed circuit board 117 by a predetermined distance.

The cover shield 200 is fixed by a plurality of screws 160 inserted through the bottom surface 201 and inserted into the back surface of the cover bottom 150. For this purpose, The first and second embossed holes 155 and 230 are formed on the bottom surface 201 of the main body 110 in a direction opposite to each other. Each screw 160 is inserted into the first emboss hole 155 of the cover bottom 150 through the second emboss hole 230 of the cover shield 200 so that the cover shield 200 is inserted into the first emboss hole 155 of the cover bottom 150, As shown in FIG.

The cover shield 200 according to the embodiment of the present invention includes a first support portion 211 vertically protruding from a bottom surface 201 of the cover shield 200 and a second support portion 211 vertically protruding from the first support portion 211 And a receiving end 210 including a second receiving portion 213 that is bent and parallel to the bottom surface 201 is formed.

The second receiving portion 213 of the receiving end 210 is held in close contact with the back surface of the cover bottom 150.

As a result, even when the cover shield 200 is pressed, the bottom surface 201 of the cover shield 200 is supported by the receiving end 210 so that the cover shield 200 200 and the driver circuit elements 117a (see FIG. 5) mounted on the printed circuit board 117 maintain a constant spacing.

Therefore, it is possible to prevent the electrical interference of the drive circuit element 117a (see Fig. 5) caused by the contact between the cover shield 200 made of a metal material and the drive circuit element 117a (see Fig. 5) It is possible to prevent the display quality of the liquid crystal display device from deteriorating due to the occurrence of a wave pattern or the like on the liquid crystal display device.

As described above, the liquid crystal display according to the embodiment of the present invention forms the receiving end 210 in the cover shield 200 coupled to the backside of the cover bottom 150, so that the pressing of the cover shield 200 occurs It is possible to prevent the cover shield 200 from coming into contact with the driving circuit element 117a (see FIG. 5) mounted on the printed circuit board 117. [ This makes it possible to prevent electrical interference between the drive circuit element 117a (see FIG. 5) caused by the contact between the cover shield 200 made of a metal material and the drive circuit element 117a (see FIG. 5) It is possible to prevent the display quality of the liquid crystal display device from deteriorating due to the occurrence of a wave pattern or the like on the screen.

FIG. 4A is a perspective view schematically showing a cover shield according to an embodiment of the present invention, and FIG. 4B is a sectional view of FIG. 4A.

As shown in the figure, the cover shield 200 according to the embodiment of the present invention is in the form of a rectangular plate having a side surface 203 with four corners bent vertically. The cover shield 200 has a bottom surface 201, And a side surface 203 having a first height h1.

The side surface 203 is formed with a first fixed end 221 extending from the side surface 203 to have a second height h2 and a second fixed end 223 bent from the first fixed end 221 The second fixed end 223 is vertically bent outward from the first fixed end 221 so as not to face the bottom surface 201 of the cover shield 200. [

At this time, the second fixed end 223 is in close contact with the backside of the cover bottom (150 in FIG. 3) to support the cover shield 200, and the backside of the cover bottom (150 in FIG. 3) And spaced-apart areas are formed between the bottom surfaces 201.

A plurality of the fixing portions 220 are protruded along the longitudinal direction of the side surface.

A plurality of second embossed holes 230 are formed on the bottom surface 201 and a second embossed hole 230 is formed on the bottom surface 201 of the first embossed hole 230. The second embossed hole 230 has a columnar surface forming an inner hollow portion vertically protruding from the bottom surface 201, (160 in Fig. 3) can be inserted.

Particularly, in the cover shield 200 according to the embodiment of the present invention, the first support portion 211, which is vertically upwardly bent from the bottom surface 201 and has a third height h3 larger than the first height h1, And a second receiving part 213 which is bent perpendicularly from the first receiving part 211 and formed in parallel to the bottom surface 201.

A plurality of support ends 210 may be formed along one longitudinal edge of the cover shield 200 or may be formed along two longitudinally opposite edges of the cover shield 210. The printed circuit board (117 of FIG. 3) 3) of the cover shield 200 facing the one edge of the connected liquid crystal panel (110 of FIG. 3) is connected to the liquid crystal panel (110 of FIG. 3) (116 in Fig. 3) that connects the connecting members to each other.

The third height h3 of the first receiving portion 211 is set to be equal to the sum of the first height h1 of the side surface 203 and the second height h2 of the first fixing end 221 . Therefore, the second support portion 213 is also in close contact with the back surface of the cover bottom (150 in FIG. 3) to support the cover shield 200, like the second fixed end 223 of the fixed end 220.

That is, the cover shield 200 according to the embodiment of the present invention includes the driver circuit elements 117a, 117b mounted on a printed circuit board (117 of FIG. 3) 5) to prevent contact between the cover shield 200 made of a metal material and the driving circuit element 117a (see FIG. 5) It is important.

However, contact between the cover shield 200 and the driving circuit element 117a (see FIG. 5) may occur through the pressing of the cover shield 200 due to the external force. The shield 200 is formed with a receiving end 210 including a second receiving part 213 which is in close contact with the back surface of the cover bottom (150 in FIG. 3) to support the cover shield 200, The bottom surface 201 of the cover shield 200 is supported by the receiving end 210 so that the driving circuit element 200 mounted on the printed circuit board (117 in FIG. 3) 117a, see Fig. 5) is maintained at a constant spacing.

Therefore, it is possible to prevent the electrical interference of the drive circuit element 117a (see Fig. 5) caused by the contact between the cover shield 200 made of a metal material and the drive circuit element 117a (see Fig. 5) It is possible to prevent the display quality of the liquid crystal display device from deteriorating due to the occurrence of a wave pattern or the like on the liquid crystal display device.

Also, the rigidity of the cover shield 200 itself is improved by the receiving end 210.

The pedestal 210 according to the embodiment of the present invention includes a first pedestal 211 bent perpendicularly from a bottom surface 201 and a second pedestal 211 bent perpendicularly from the first pedestal 211, The area occupied by the receiving end 210 on the bottom surface 201 is only the area where the first receiving part 211 is bent so that the receiving end of the receiving end 210 210 may be formed.

As a result, the contact between the cover shield 200 and the driving circuit element 117a (see FIG. 5) due to the pressing of the cover shield 200 can be suppressed even in a lightweight, thin and narrow bezel liquid crystal display device, .

The position of the second receiving portion 213 of the receiving end 210 in correspondence with the center of the cover shield 200 is determined by the position of the bottom surface 201 of the cover shield 200 when the cover shield 200 is pressed, So that it can be supported more stably. It is preferable that the first receiving portion 211 of the receiving end 210 is formed to be bent perpendicularly from the bottom surface 201 rather than extending from the side surface 203 of the cover shield 200, But is not limited thereto.

A groove 205 is formed between the receiving end 210 and the side surface 203 of the cover shield 200. A groove 205 is formed between the receiving end 210 and the side surface 203, The cover shield 200 according to the embodiment of the present invention can prevent the second receiving portion 213 of the receiving end 210 from being positioned corresponding to the center portion of the cover shield 200, The use of the material can be minimized.

Fig. 5 is a cross-sectional view schematically showing a part of Fig. 2 modularized.

An LED assembly 129 including a reflection plate 125, a light guide plate 123, a PCB 129b on which the LED 129a and the LED 129a are mounted, and a light guide plate 123 on the light guide plate 123, 121 are stacked to form a backlight unit (120 of FIG. 2).

A liquid crystal panel 110 in which a liquid crystal layer (not shown) is interposed between the first and second substrates 112 and 114 and the first and second substrates 112 and 114 is disposed on the backlight unit 120 On the outer surfaces of the substrates 112 and 114, polarizers 119a and 119b selectively transmitting only specific light are attached.

The backlight unit 120 and the liquid crystal panel 110 are surrounded by the guide panel 130 and the cover bottom 150 is coupled to the backside thereof. A cover cover 140 is coupled to the guide panel 130 and the cover bottom 150.

The liquid crystal panel 110 is mounted on the second horizontal portion 133 protruding inward of the second vertical portion 131 of the guide panel 130 and is supported on the second vertical portion 131 of the guide panel 130 Is in close contact with the outer surface of the edge portion 153 of the cover bottom 150.

The inner surface of the first vertical portion 143 of the top cover 140 is positioned in close contact with the outer surface of the second vertical portion 131 of the guide panel 130, The second vertical portion 131 of the guide panel 130 and the edge portion 153 of the cover bottom 150 are integrally assembled and fastened to each other through the screws 170. [

The printed circuit board 117 connected to the liquid crystal panel 110 through the connecting member 116 along the one edge of the liquid crystal panel 110 is brought into close contact with the backside of the cover bottom 150. In order to protect the printed circuit board 117 The cover shield 200 is assembled and coupled to the back surface of the cover bottom 150.

 A second emboss hole 230 corresponding to the first emboss hole 155 protruding from the back surface of the cover bottom 150 is formed on the bottom surface 201 of the cover shield 200, The bottoms 150 correspond to the first and second emboss holes 155 and 230 and then pass the screws 160 through the first and second emboss holes 155 and 230 to be assembled and fastened to each other.

The fixed end 220 formed of the first fixed end 221 protruding from the side surface 203 of the cover shield 200 and the second fixed end 223 bent perpendicularly from the first fixed end 221, The second fixed end 223 is in close contact with the back surface of the cover bottom 150 to support the cover shield 200. [

Therefore, the cover shield 200 is spaced apart from the driver circuit element 117a mounted on the printed circuit board 117 by a predetermined distance.

Particularly, the cover shield 200 according to the embodiment of the present invention includes a first receiving portion 211 bent vertically from the bottom surface 201 of the cover shield 200, and a second receiving portion 211 extending from the first receiving portion 211 to the bottom surface The second support portion 213 is vertically bent so as to be parallel to the first support portion 201 and the second support portion 213 is in close contact with the back surface of the cover bottom 150 to support the cover shield 200.

The bottom surface 201 of the cover shield 200 is supported by the receiving end 210 even when the cover shield 200 is pressed by an external force so that the cover shield 200 and the printed circuit board 117 The driving circuit elements 117a mounted on the driving circuit elements 117a can maintain a constant spacing.

Therefore, it is possible to prevent the electrical interference of the drive circuit element 117a due to the contact between the cover shield 200 made of a metal material and the drive circuit element 117a, so that a wave pattern or the like is generated on the screen It is possible to prevent the display quality of the liquid crystal display device from being lowered.

The receiving end 210 is formed by vertically bending the first receiving part 211 from the bottom surface 201 of the cover shield 200 so that the area occupied by the receiving end 210 on the bottom surface 201 is Since the first receiving portion 211 is only a bent region, the receiving end 210 can be formed in the cover shield 200 with a minimum area.

This makes it possible to prevent the contact between the cover shield 200 and the driving circuit element 117a due to the pressing of the cover shield 200 even for a lightweight, thin and narrow bezel liquid crystal display device which is recently required .

As described above, the liquid crystal display according to the embodiment of the present invention forms the receiving end 210 in the cover shield 200 coupled to the backside of the cover bottom 150, so that the pressing of the cover shield 200 occurs It is possible to prevent the cover shield 200 from coming into contact with the driving circuit element 117a mounted on the printed circuit board 117. [ This makes it possible to prevent the electrical interference of the drive circuit element 117a caused by the contact between the cover shield 200 made of a metal and the drive circuit element 117a, It is possible to prevent the display quality of the liquid crystal display device from deteriorating.

The LED assembly may further include an LED housing 180 between the LED assembly 129 and the cover bottom 150 to effectively dissipate heat generated from the LED assembly 129 to the outside.

The present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

110: liquid crystal panel (112, 114: first and second substrates)
116: connecting member, 117: printed circuit board (117a: driving circuit element)
119a and 119b:
121: optical sheet, 123: light guide plate, 125: reflector
129: LED assembly (129a: LED, 129b: PCB)
130: guide panel 131 (second horizontal portion, 133: second vertical portion)
140: top cover (141: first horizontal portion, 143: first vertical portion)
150: cover bottom (151: horizontal plane, 153: edge portion, 155: first embossed hole)
160, 170: screw
180: LED housing
200: cover shield (201: bottom surface, 203: side surface)
210: receiving end (211: first receiving portion, 213: second receiving portion)
220: fixed end (221: first fixed end, 223: second fixed end)
230: 2nd emboss hole

Claims (9)

A liquid crystal panel connected to the printed circuit board through a connection member;
A backlight unit positioned below the liquid crystal panel;
A cover bottom on which the backlight unit and the liquid crystal panel are mounted;
And a cover shield which is assembled and fastened to the backside of the cover bottom so as to surround the printed circuit board which is brought into close contact with the backside of the cover bottom,
And the liquid crystal display device.
The method according to claim 1,
Wherein the cover shield includes a bottom surface and a side surface of which the edge of the bottom surface is vertically bent upward,
The support end includes a first support portion vertically bent upward from the bottom surface and a second support portion bent perpendicularly from the first support portion so as to be parallel to the bottom surface,
And the second supporting portion is in close contact with the back surface of the cover bottom.
3. The method of claim 2,
And a fixing part including a first fixing end extending from the side surface and a second fixing end bent perpendicularly from the first fixing end so as not to face the bottom surface,
And the second fixed end is in close contact with the back surface of the cover bottom.
The method of claim 3,
Wherein the side has a first height, the first fixed end has a second height, and the first base has a third height corresponding to a sum of the first height and the second height.
3. The method of claim 2,
Wherein the printed circuit board and the liquid crystal panel are connected to each other through a plurality of connection members,
And the support end is positioned corresponding to a region between the plurality of connection members.
3. The method of claim 2,
And the second receiving portion is positioned corresponding to a center portion of the cover shield.
The method according to claim 6,
And a groove is formed between the support end and the side surface of the cover shield.
3. The method of claim 2,
Wherein a first embossed hole is formed on a rear surface of the cover bottom, a second embossed hole corresponding to the first embossed hole is formed on the bottom surface, and the cover shield is provided on the back surface of the cover bottom, And is assembled and fastened through a screw penetrating through the embossed hole. The method according to claim 1,
A backlight unit, a guide panel covering an edge of the liquid crystal panel, and a top cover covering an upper surface edge and a side surface of the liquid crystal panel.

Images