KR20160084534A - Liquid crystal display device - Google Patents

Abstract

The present invention relates to a liquid crystal display (LCD) device, particularly to an LCD device implementing a narrow bezel. The feature of the present invention is that a fixer onto which a liquid crystal panel is attached and supported between side surfaces of a first vertical part of a guide panel and a cover bottom, thus fluidity is partially given to the liquid crystal panel through the fixer. Accordingly, in the liquid crystal panel, flexure is buffered by the fluidity due to the fixer, thus the flexure is not transferred to the liquid crystal panel, even if the flexure is generated in a modularized LCD device. Therefore, light leakage due to the flexure of the liquid crystal panel is prevented, so that reduction of an image quality of the LCD device is prevented. In addition, increase of process costs due to an expensive foam pad is prevented because the foam pad is not used, process efficiency is improved because a process for attaching the foam pad by manual labor of a worker is omitted, and a narrow bezel, which has been difficult to implement because of the minimum width for the foam pad, is implemented.

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, and more particularly, to a liquid crystal display that realizes a narrow bezel.

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.

A general liquid crystal display device 1 includes a liquid crystal panel 10, a backlight unit 20, a guide panel 30, a cover bottom 50, and a top cover 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.

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 reflective plate 25 that is seated on the bottoms 50, a light guide plate 23 that is seated on the reflective plate 25, and an optical sheet 21 that is located on top of the reflective plate 25.

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 guide panel 30 having a rectangular frame shape, The cover bottoms 50 covering the back surface are joined at the front and rear sides, respectively, and modularized via the guide panel 30. [

Reference numerals 19a and 19b denote polarizers attached to both surfaces of the liquid crystal panel 10 to control the polarization direction of light.

The liquid crystal panel 10 is attached and fixed on the guide panel 30 through a foam pad (not shown) having elasticity. The liquid crystal panel 10 is attached to the guide panel 30 The warpage is not transmitted to the liquid crystal panel 10 due to the elastic force of the foam pad (not shown) even if the liquid crystal display device 1 is warped by a force externally applied thereto.

Accordingly, it is possible to prevent light leakage due to warping of the liquid crystal panel 10 from occurring.

However, the foam pad (not shown) having an elastic force is expensive due to its difficult forming process, and the process of attaching the foam pad (not shown) on the guide panel 30 must be performed only by the manual operation of the operator. It has a very low problem.

Further, at present, it is difficult to realize a narrow bezel which is required recently due to the minimum width capable of forming a foam pad (not shown).

SUMMARY OF THE INVENTION It is a first object of the present invention to provide a liquid crystal display device which can prevent a deflection from being transmitted to a liquid crystal panel and can realize a narrow bezel.

It is a second object of the present invention to prevent light leakage from occurring, and to prevent the image quality of a liquid crystal display device from being degraded finally.

In order to achieve the above object, the present invention provides a liquid crystal display device including a liquid crystal panel, a backlight unit positioned below the liquid crystal panel, a first vertical part covering an edge of the backlight unit, A first horizontal portion, and a second horizontal portion, wherein the first vertical portion includes first and second fastening holes, the first horizontal portion includes a third fastening hole, a horizontal panel on which the backlight unit is mounted, And the side surface outer side surface is provided with a fastening protrusion to be inserted into the first fastening hole, and a part of the end of the side surface is bent vertically outwardly to form a cover protrusion having a first protrusion end, A second horizontal portion that supports the back edge of the liquid crystal panel, and a second horizontal portion that is vertically bent from the second horizontal portion to be inserted into the third fastening hole, A liquid crystal display device includes a fixer including a second vertical portion and a guide hole formed in the second vertical portion and the first projection end is inserted into the second fastening hole through the guide hole, to provide.

According to another aspect of the present invention, there is provided a liquid crystal display device including a liquid crystal panel, a backlight unit disposed below the liquid crystal panel, a first vertical part covering an edge of the backlight unit, and a first horizontal part bent from the first vertical part, A guide panel having a first fastening hole in a vertical portion thereof, a second projecting end protruding from an inside of the first vertical portion, and a third fastening hole formed on the first horizontal portion, A cover bottom having a fourth coupling hole formed in a side surface thereof and a second coupling hole formed in a side surface of the first coupling hole, A second horizontal portion that is vertically bent from the second horizontal portion and inserted into the third fastening hole, It includes Fixer (fixer) comprising a second vertical portion, and is provided with a guide hole, and the second projection end there is provided a liquid crystal display device according to the fourth fastening fitting insertion hole bored through the guide hole.

At this time, a plurality of the second vertical portions are spaced apart from each other along the longitudinal direction of the second horizontal portion, the second horizontal portion is supported on the first horizontal portion, and the liquid crystal panel is bonded to the second horizontal portion And is attached and fixed to the substrate.

The guide hole has a width greater than the thickness of the first protruding end or the second protruding end, and the inner surface of the first vertical portion is provided with a guide groove connected to the third fastening hole, The vertical portion is inserted into the guide groove.

The width of the guide groove may correspond to the thickness of the second vertical portion, and may further include a third vertical portion that is perpendicularly bent from the second horizontal portion to one side of the second vertical portion.

At this time, the third vertical part surrounds a part of the outer side of the first vertical part of the guide panel, and the stepped part where the third vertical part is seated is provided outside the first vertical part of the guide panel.

As described above, according to the present invention, by providing the fixer to which the liquid crystal panel is attached and supported between the first vertical portion of the guide panel and the side surface of the cover bottom, it is possible to impart some fluidity to the liquid crystal panel through the fixture There is an effect.

Accordingly, even if a modularized liquid crystal display device is warped, the liquid crystal panel is prevented from being warped due to fluidity by the filler, so that no warpage is transmitted to the liquid crystal panel, thereby preventing light leakage due to warping of the liquid crystal panel So that it is possible to prevent the image quality of the liquid crystal display device from deteriorating.

In addition, since the foam pad is not used, it is possible to prevent the process cost from being increased by the expensive foam pad, and the process of attaching the foam pad by the manual operation of the operator can be omitted, There is an effect that can be improved. In addition, it is possible to realize a narrow bezel which is not realized by the minimum width of the foam pad.

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 an exploded perspective view schematically showing a liquid crystal display device according to a first embodiment of the present invention.
FIG. 3A is a sectional view taken along line AA of FIG.
3B is a cross-sectional view taken along line BB of FIG.
4 is a cross-sectional view schematically showing a part of a modular liquid crystal display device according to a second embodiment of the present invention.
5 is a cross-sectional view schematically showing a part of a modular liquid crystal display device according to a third embodiment of the present invention.

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

- First Embodiment -

2 is an exploded perspective view schematically showing a liquid crystal display device according to a first embodiment of the present invention.

The liquid crystal display 100 according to the first embodiment of the present invention mainly includes a liquid crystal panel 110, a backlight unit 120, a guide panel 130, 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 cover bottom 150 is positioned on the back surface of the backlight unit 120 in a state where the guide panel 130 having a rectangular shape is wiped.

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

First, the liquid crystal panel 110 is a part that plays a key role in image display of the liquid crystal display device 100 and 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 transistor: TFT) are connected in one-to-one correspondence with the transparent pixel electrodes formed in each pixel.

At this time, the pixel electrodes are divided into a plurality of bar electrodes, spaced apart from each other, and common wirings are formed on the same layer in parallel with the gate wirings, and are electrically connected to the common wirings, And a plurality of common electrodes are formed.

here, When a plurality of pixel electrodes and a common electrode are spaced apart from each other, the liquid crystal panel 110 operates in the IPS mode. Only the plate-shaped pixel electrodes except for the common electrode are formed on the first substrate 112 It forms a liquid crystal panel 110 which operates in any one of a TN mode, an ECB mode and a VA mode.

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.

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.

The first and second polarizers 119a and 119b (see FIG. 3A) that selectively transmit 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 at least one edge of the liquid crystal panel 110 via a connection member 116 such as a flexible circuit board or a tape carrier package (TCP) And is brought into close contact with the side surface of the guide panel 130 or the back surface of the cover bottom 150.

In the liquid crystal panel 110, when a thin film transistor selected for each gate line is turned on by an on / off signal of a thin film transistor to be transferred to a gate line, an image signal of the data line is applied to the corresponding pixel electrode 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 100 according to the present invention, a backlight unit 120 is provided to supply light from the rear surface of the liquid crystal display device 100 so that a difference in transmittance represented by the liquid crystal panel 110 is externally expressed.

The backlight unit 120 includes an LED assembly 129, a white or silver reflective plate 125, a light guide plate 123 seated on the reflective plate 125, and an optical sheet 121 interposed therebetween .

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

The light guide plate 123 on which the light emitted from the plurality of LEDs 129a of the LED assembly 129 is incident is incident on the light guide plate 123 while the light incident from the LED 129a travels through the light guide plate 123, So that the liquid crystal panel 110 is provided with a surface light source.

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 guide panel 130 and the cover bottom 150. The guide panel 130 supports the edge of the liquid crystal panel 110 and supports the backlight unit 120, A first vertical part 131 surrounding the side surface of the backlight unit 120 and a second vertical part 131 surrounding the side surfaces of the liquid crystal panel 110 and the backlight unit 120 inside the first vertical part 131. [ And a first horizontal part 133 for distinguishing the position.

The liquid crystal panel 110 is supported on the first horizontal portion 133.

A plurality of first and second fastening holes 135 and 137 are formed in the first vertical portion 131 of the guide panel 130. A third fastening hole 139 is formed on the first horizontal portion 133, Respectively.

The guide panel 130 is seated on the cover bottom 150. The cover bottom 150 includes a horizontal surface 151 and a side surface 153 having a vertically bent edge of the horizontal surface 151.

At this time, the outer surface of the side surface 153 is provided with a fastening protrusion 155 to be inserted into the first fastening hole 135 of the guide panel 130, and a part of the end of the side surface 153 is vertically A first protruding end 157 is provided. The first projecting end 157 is inserted into the second fastening hole 137 of the guide panel 130.

The guide panel 130 and the cover bottom 150 have a cover bottom 150 covering the back surface of the backlight unit 120 while the edges of the liquid crystal panel 10 and the backlight unit 120 are covered with the guide panel 130. [ Are combined at the front and rear sides to be modularly integrated.

Here, the guide panel 130 may be referred to as a support main or main support, or a mold frame, and the cover bottom 150 may be referred to as a bottom cover or a bottom cover.

Here, the liquid crystal display 100 of the present invention can be thin and lightweight by omitting the top cover (40 in Fig. 1) which was located in front of the liquid crystal panel 110, Resulting in simplification. Also, the process cost can be reduced.

In addition to being lightweight and thin, the display area is expanded by omitting the top cover (40 in Fig. 1), and at the same time, the bezel area, which is a non-display area other than the display area, is reduced to form a liquid crystal display having a narrow bezel Device 100 may be provided.

Particularly, the liquid crystal display 100 according to the first embodiment of the present invention is characterized by further comprising a fixer 200 between the guide panel 130 and the cover bottom 150, The liquid crystal panel 110 supported on the first horizontal portion 133 of the guide panel 130 has some fluidity in the modular liquid crystal display device 100. [

Here, the fixer 200 includes a second horizontal portion 201 having a rectangular shape corresponding to the guide panel 130 and seated on the first horizontal portion 133 of the guide panel 130, And a plurality of second vertical portions 203 which are vertically bent from the first horizontal portion 201 and inserted into the third fixing holes 139 of the guide panel 130. The second vertical portion 203 includes a second horizontal portion 201 at predetermined intervals along the longitudinal direction.

A second vertical portion 203 (corresponding to an area where the first protruding end 157 of the cover bottom 150 is formed) of the second fastening hole 137 of the guide panel 130 among the plurality of second vertical portions 203 A guide hole 205 through which the first protruding end 157 of the cover bottom 150 penetrates is provided.

The filler 200 may be made of a metal material or a mold material, and it is preferable that the filler 200 is made of a metal material in order to ensure a thin width, a thickness, and rigidity.

Then, a part of the back edge of the liquid crystal panel 110 is attached and fixed on the second horizontal portion 201 through a bonding pad 160 (see Fig. 3A) such as a double-sided tape.

The filler 200 has some fluidity from the modular guide panel 130 and the cover bottom 150 in the up, down, left, and right directions while the liquid crystal panel 110 is attached and fixed.

Therefore, even if a modulus of the liquid crystal display device 100 is flexed due to externally applied force, the liquid crystal panel 110 is warped due to fluidity by the filler 200, and the liquid crystal panel 110 is warped .

Accordingly, it is possible to prevent the occurrence of light leakage due to the warpage of the liquid crystal panel 110, thereby preventing the image quality of the liquid crystal display device 100 from deteriorating.

Further, by not using a foam pad (not shown) to prevent the liquid crystal panel 110 from being warped, the process cost and process efficiency can be improved, and a narrower bezel can be realized.

FIG. 3A is a cross-sectional view taken along the line A-A of FIG. 2, and FIG. 3B is a cross-sectional view taken along the line B-B of FIG.

As shown in the figure, an LED assembly (see FIG. 2) including a reflection plate 125, a light guide plate 123, and a PCB (129b in FIG. 2) on which an LED (129a in FIG. 2) The optical sheets 121 are stacked on the light guide plate 129 and the light guide plate 123 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.

Here, the backlight unit (120 in FIG. 2) and the liquid crystal panel 110 are mounted on the horizontal surface 151 of the cover bottom 150 with a sidewall surrounded by the guide panel 130 and modularized.

3A, the outer surface of the side surface 153 of the cover bottom 150 and the inner surface of the first vertical portion 131 of the guide panel 130 are in close contact with each other The fastening protrusion 155 provided on the side surface 153 of the cover bottom 150 is inserted into the first fastening hole 135 provided in the first vertical portion 131 of the guide panel 130, The guide panel 130 and the cover bottom 150 are assembled and fastened to each other.

In the liquid crystal display 100 according to the first embodiment of the present invention, a fixer 200 is positioned between the guide panel 130 and the cover bottom 150, 201 are placed on and positioned on the first horizontal portion 133 of the guide panel 130 and part of the back edge of the liquid crystal panel 110 on the second horizontal portion 201 of the fixture 200 is positioned on the double- And adhered and fixed through the same bonding pad 160.

3B, in a part of the modular liquid crystal display device 100, the first horizontal part 133 of the guide panel 130 is formed in the guide panel 130 with the inner surface of the first vertical part 131, And the second horizontal part 201 is formed on the first horizontal part 133 of the guide panel 130 so that the second horizontal part 201 is on the first horizontal part 133 of the guide panel 130. [ The second vertical portion 203 is inserted into the guide groove 138 of the guide panel 130 through the third fastening hole 139.

The width w3 of the guide groove 138 is formed to correspond to the thickness w2 of the second vertical portion 203 of the fixture 200 so that the width w2 of the second vertical portion 203 of the fixture 200 inserted into the guide groove 138 It is preferable that the second vertical portion 203 is not protruded to the inner side surface of the first vertical portion 131 of the guide panel 130 so that the bezel region which is the non-display region of the liquid crystal display device 100 is not widened Do.

The inner surface of the second vertical portion 203 of the filler 200 and the outer surface of the side surface 153 of the cover bottom 150 are in close contact with each other, The first protruding end 157 penetrates the guide hole 205 provided in the second vertical portion 203 of the fixture 200 and is engaged with the second fastening portion 155 provided on the first vertical portion 131 of the guide panel 130, And is inserted into the hole 137.

The second vertical part 203 of FIG. 3A may be defined by the constraint area where the second vertical part 203 is formed and the free area where the second vertical part 203 is not formed. The liquid crystal panel 110 provides fluidity to the upper, lower, left, and right sides.

That is, the liquid crystal panel 110 is mounted and supported on the second horizontal portion 201 of the fixture 200 through the bonding pad 160, and the liquid crystal panel 110 is mounted on the guide panel 130 and the cover bottom 150 The fixture 200 in which the liquid crystal panel 110 is attached and supported can not have the second horizontal portion 201 on the first horizontal portion 133 of the guide panel 130 The fixture 200, the guide panel 130, and the cover bottom 150 do not have a structure in which they are assembled and fastened to each other.

Therefore, the liquid crystal panel 110 has fluidity free from the guide panel 130 and the cover bottom 150 along with the filler 200 in the up, down, left, and right directions.

The constraint area of the fixture 200 having the second vertical part 203 of FIG. 3B imparts some fluidity to the upper and lower sides of the liquid crystal panel 110. That is, the guide hole 205 provided on the second vertical portion 203 of the filler 200 has a thickness d1 of the first protruding end 157 of the cover bottom 150 passing through the guide hole 205, The first projecting end 157 is formed to have a large width w1 from the upper side to the lower side.

Accordingly, the right and left fixtures 200 are constrained by the first protruding end 157 of the cover bottom 150, but the first protruding end 157 of the cover bottom 150, which penetrates the guide hole 205 of the fixture 200, The liquid crystal panel 110 attached and fixed on the second horizontal portion 201 of the immersion lens 200 through the bonding pad 160 is also provided with the liquid crystal panel 110, A part of the fluidity to the upper side and the lower side of the container 200 has fluidity.

That is, the filler 200 according to the first embodiment of the present invention imparts fluidity to the liquid crystal panel 110 through the free region of the filler 200 of FIG. 3A, The liquid crystal panel 110 only gives some fluidity to the upper and lower sides.

Here, the fluidity imparted to the liquid crystal panel 110 in the free region of the fixer 200 is larger than the fluidity imparted to the liquid crystal panel 110 in the constrained region, but the free region and the constraint region of the And the free area of the picker 200 is partially constrained to the constraint area.

Therefore, only some fluidity to the liquid crystal panel 110 is given to the liquid crystal panel 110 through the free area of the filler 200. The fluidity imparted to the liquid crystal panel 110 by the filler 200 is not particularly limited, 110 are stably modularized in the liquid crystal display device 100 and at the same time the deflection of the liquid crystal panel 110 does not occur through the force applied to the modularized liquid crystal display device 100. [

The liquid crystal panel 110 is provided with a part of the liquid crystal panel 110 through the filler 200 so that the liquid crystal panel 110 can be prevented from being deformed due to external force applied thereto, The warp is buffered by the fluidity of the liquid crystal panel 110 and the warp is not transmitted to the liquid crystal panel 110. [

Accordingly, it is possible to prevent the occurrence of light leakage due to the warpage of the liquid crystal panel 110, thereby preventing the image quality of the liquid crystal display device 100 from deteriorating.

Further, by not using a foam pad (not shown) for preventing the liquid crystal panel 110 from being warped, it is possible to prevent an increase in process cost due to an expensive foam pad (not shown) It is possible to omit the step of attaching the foam pad (not shown) by the manual operation of the operator, thereby improving the efficiency of the process.

Also, a narrow bezel that can not be realized due to the minimum width of the foam pad (not shown) can be realized.

The liquid crystal display device 100 according to the first embodiment of the present invention is provided between the first vertical portion 131 of the guide panel 130 and the side surfaces 153 of the cover bottom 150, The liquid crystal panel 110 can be provided with some fluidity through the filler 200. [0050]

Accordingly, even if a modulus of the liquid crystal display device 100 is flexed due to external force, the liquid crystal panel 110 is buckled by the fluidity of the filler 200, and the liquid crystal panel 110 is warped It is not transmitted. Therefore, it is possible to prevent the occurrence of light leakage due to the warpage of the liquid crystal panel 110, and it is possible to prevent the image quality of the liquid crystal display device 100 from deteriorating.

Further, by not using a foam pad (not shown) for preventing the liquid crystal panel 110 from being warped, it is possible to prevent an increase in process cost due to an expensive foam pad (not shown) It is possible to omit the step of attaching the foam pad (not shown) by the manual operation of the operator, thereby improving the efficiency of the process.

Also, a narrow bezel that can not be realized due to the minimum width of the foam pad (not shown) can be realized.

- Embodiment 2

4 is a cross-sectional view schematically showing a part of a modular liquid crystal display device according to a second embodiment of the present invention.

Prior to explanation, FIG. 4 corresponds to the region cut along the line A-A in FIG. 2, and corresponds to the constraint region in which the second vertical portion 203 of the fixture 200 is formed.

As shown in the figure, an LED assembly (see FIG. 2) including a reflection plate 125, a light guide plate 123, and a PCB (129b in FIG. 2) on which an LED (129a in FIG. 2) The optical sheets 121 are stacked on the light guide plate 129 and the light guide plate 123 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.

Here, the backlight unit (120 in FIG. 2) and the liquid crystal panel 110 are mounted on the horizontal surface 151 of the cover bottom 150 with a sidewall surrounded by the guide panel 130 and modularized.

The guide panel 130 has a guide groove 138 connected to the inner surface of the first vertical portion 131 from a third coupling hole 139 provided in the first horizontal portion 133 of the guide panel 130, And the second vertical portion 203 is engaged with the third fastening hole 133 in a state where the second horizontal portion 201 is seated on the first horizontal portion 133 of the guide panel 130, 139 of the guide panel 130 through the guide groove 138 of the guide panel 130.

The inner surface of the second vertical portion 203 of the fixture 200 and the outer surface of the side surface 153 of the cover bottom 150 are in close contact with each other so that the first vertical portion 131 of the guide panel 130, The second protruding end 136 protruding from the inner surface of the cover bottom 150 penetrates the guide hole 205 provided in the second vertical portion 203 of the fixture 200 and is provided on the side surface 153 of the cover bottom 150 And is inserted into the fourth fastening hole 159.

The guide hole 205 provided on the second vertical portion 203 of the fixture 200 has a thickness d1 of the second protruding end 136 of the guide panel 130 passing through the guide hole 205, The second protruding end 136 is formed to have a large width w1 from the upper side to the lower side.

The second protrusion 136 of the guide panel 130 is fixed to the right and left sides of the fixer 200 but the second protrusion 136 of the second protrusion 136 of the guide panel 130 penetrates through the guide hole 205 of the fixture 200, And has some fluidity on the upper side and the lower side with respect to the step (136).

The liquid crystal panel 110 attached and fixed on the second horizontal portion 201 of the filler 200 through the bonding pad 160 is also partially fluidized by the fluidity of the upper portion and the lower portion of the filler 200, .

Therefore, even if a modulus of the liquid crystal display device 100 is flexed due to externally applied force, the liquid crystal panel 110 is warped due to fluidity by the filler 200, and the liquid crystal panel 110 is warped .

Accordingly, it is possible to prevent the occurrence of light leakage due to the warpage of the liquid crystal panel 110, thereby preventing the image quality of the liquid crystal display device 100 from deteriorating.

Further, by not using a foam pad (not shown) for preventing the liquid crystal panel 110 from being warped, it is possible to prevent an increase in process cost due to an expensive foam pad (not shown) It is possible to omit the step of attaching the foam pad (not shown) by the manual operation of the operator, thereby improving the efficiency of the process.

Also, a narrow bezel that can not be realized due to the minimum width of the foam pad (not shown) can be realized.

- Third Embodiment -

5 is a cross-sectional view schematically showing a part of a modular liquid crystal display according to a third embodiment of the present invention.

Prior to the description, FIG. 5 corresponds to a region cut along the line B-B in FIG. 2, and corresponds to a free region where the second vertical portion of the picture element is not formed.

As shown in the figure, an LED assembly (see FIG. 2) including a reflection plate 125, a light guide plate 123, and a PCB (129b in FIG. 2) on which an LED (129a in FIG. 2) The optical sheets 121 are stacked on the light guide plate 129 and the light guide plate 123 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.

Here, the backlight unit (120 in FIG. 2) and the liquid crystal panel 110 are mounted on the horizontal surface 151 of the cover bottom 150 with a sidewall surrounded by the guide panel 130 and modularized.

At this time, the outer surface of the side surface 153 of the cover bottom 150 and the inner surface of the first vertical portion 131 of the guide panel 130 are in contact with each other, The fastening protrusions 155 are inserted into the first fastening holes 135 of the first vertical portion 131 of the guide panel 130 so that the guide panel 130 and the cover bottom 150 are assembled together And is fastened.

A fixer 200 is positioned between the guide panel 130 and the cover bottom 150 so that the second horizontal portion 201 is positioned on the first horizontal portion 133 of the guide panel 130, And a part of the back edge of the liquid crystal panel 110 is adhered and fixed onto the second horizontal portion 201 of the fixer 200 through a bonding pad 160 such as a double-sided tape.

Particularly, the liquid crystal display 100 according to the third embodiment of the present invention is vertically bent from the second horizontal part 201 in the free area of the filler 200, and is vertically bent from the first vertical part 201 of the guide panel 130, The rigidity of the free region of the filler 200 can be improved through the third vertical portion 207 and the overall rigidity of the filler 200 can be improved through the third vertical portion 207. [ Can be improved.

When the second horizontal portion 201 of the fixture 200 is seated on the first horizontal portion 133 of the guide panel 130, The position of the second horizontal part 201 can be guided on the first horizontal part 133 and the second horizontal part 201 of the picture 200 can be guided on the first horizontal part 133 of the guide panel 130 So that the assembling process can be carried out easily.

At this time, a step 134 having a width corresponding to the thickness of the third vertical part 207 of the fixture 200 is provided outside the first vertical part 131 of the guide panel 130, It is preferable to prevent the protrusion 207 from protruding outwardly of the guide panel 130.

This makes it possible to more easily assemble the guide panel 130 and the fixer 200 and to improve the assembling performance of the guide plate 130 and the fixer 200 by the third vertical portion 207 of the fixture 200, The bezel area can be prevented from widening.

At this time, the third vertical part 207 of the fixture 200 is bent perpendicularly from the second horizontal part 201 of the picker 200, And the height h of the third vertical portion 207 of the picker 200 is located between the height of the second vertical portion 203 of Figure 3 The third vertical portion 207 of the fixture 200 may be inserted into the first fastening hole 135 of the guide panel 130 in the process of assembling and fastening the guide panel 130 and the cover bottom 150. [ The rigidity of the picker 200 can be improved without blocking it.

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.

100: liquid crystal display
110: liquid crystal panel (112, 114: first and second substrates)
119a and 119b:
121: Optical sheet
123: light guide plate
125: reflector
And a guide hole formed in the guide hole so as to be in contact with the first guide hole and the second guide hole,
150: cover bottom (151: horizontal plane, 153: side, 157: first protruding end)
160: Adhesive pad
200: Fixer 201 (second horizontal portion, 203: second vertical portion, 205: guide hole)

Claims (9)

A liquid crystal panel;
A backlight unit positioned below the liquid crystal panel;
And a first vertical portion bent from the first vertical portion, wherein the first vertical portion includes first and second fastening holes, and the first horizontal portion includes first and second fastening holes, A guide panel provided with a third fastening hole;
And a vertical protruding side from the edge of the horizontal surface, wherein the side outer side surface is provided with a fastening protrusion which is inserted into the first fastening hole, and a part of the end of the side surface is vertically A cover bottom having a first protruding end bent;
A fixer including a second horizontal portion supporting a back edge of the liquid crystal panel and a second vertical portion bent perpendicularly from the second horizontal portion and inserted into the third fastening hole,
Wherein the second vertical portion is provided with a guide hole and the first projection end penetrates through the guide hole and is inserted into the second fastening hole.
A liquid crystal panel;
A backlight unit positioned below the liquid crystal panel;
And a first vertical portion folded vertically from the first vertical portion, wherein the first vertical portion is provided with a first fastening hole, and the first vertical portion is provided with a first vertical portion, A guide panel having a second protruding end projecting from the first protruding end and having a third fastening hole on the first horizontal part;
A horizontal surface on which the backlight unit is mounted and a vertically bent side surface from the edge of the horizontal surface, and the side surface outer side has a fastening protrusion inserted into the first fastening hole, and a fourth fastening hole is provided on the side surface A cover tab;
A fixer including a second horizontal portion supporting a back edge of the liquid crystal panel and a second vertical portion bent perpendicularly from the second horizontal portion and inserted into the third fastening hole,
Wherein the second vertical portion includes a guide hole and the second projection end penetrates through the guide hole and is inserted into the fourth fastening hole.
3. The method according to one of claims 1 and 2,
And the second vertical portions are spaced apart from each other along the longitudinal direction of the second horizontal portion.
3. The method according to one of claims 1 and 2,
Wherein the second horizontal portion is supported on the first horizontal portion, and the liquid crystal panel is attached and fixed on the second horizontal portion through an adhesive pad.
3. The method according to one of claims 1 and 2,
Wherein the guide hole has a width greater than a thickness of the first projection end or the second projection end.
3. The method according to one of claims 1 and 2,
Wherein the first vertical portion has a guide groove connected to the third fastening hole, and the second vertical portion is inserted into the guide groove.
The method according to claim 6,
And the width of the guide groove corresponds to the thickness of the second vertical portion.
3. The method according to one of claims 1 and 2,
And a third vertical portion bent perpendicularly from the second horizontal portion to one side of the second vertical portion.
9. The method of claim 8,
Wherein the third vertical part surrounds a part of the outer side of the first vertical part of the guide panel and the outer side of the first vertical part of the guide panel has a step to receive the third vertical part.

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