KR101627679B1 - Liquid crystal display device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device capable of preventing particles such as fine particles and particles from penetrating into a modularized liquid crystal display device.
A feature of the present invention is to cover all four edges of a modularized liquid crystal display device through an adhesive tape so that particles such as fine dust or particles from the outside can be prevented from penetrating into the modularized liquid crystal display device.
Accordingly, it is possible to prevent contamination of the entire liquid crystal display device, to prevent damage of sensitive electronic elements of the liquid crystal panel, and to prevent fine dust particles or particles between the optical sheets of the backlight unit or between the optical sheet and the light guide plate It is possible to prevent a problem that the same particles are adhered to deteriorate the image quality.
Particularly, the adhesive tape of the present invention has a cutting portion corresponding to the edge of the liquid crystal display device, so that even when the adhesive tape is in the form of a long strip, the effect of preventing the adhesive tape from being developed even in the process of wrapping the edge of the liquid crystal display device have.

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 device, and more particularly, to a liquid crystal display device capable of preventing particles such as fine particles and particles from penetrating into a modularized liquid crystal display device.

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.

Here, as a light source of the backlight unit, a cold cathode fluorescent lamp (CCFL), an external electrode fluorescent lamp, a light emitting diode (LED) .

In particular, LEDs are widely used as light sources for displays, having characteristics such as small size, low power consumption, and high reliability.

1 is a cross-sectional view of a modular liquid crystal display device using a general LED as a light source.

As shown, a typical liquid crystal display device includes a liquid crystal panel 10, a backlight unit 20, a support main 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.

The 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 side edge of the support main body 30, a white or silver reflective plate 25 seated on the cover bottom 50, 25, and a plurality of optical sheets 21 interposed therebetween.

The LED assembly 29 is formed on one side of the light guide plate 23 and includes a plurality of LEDs 60 emitting white light and an LED PCB (printed circuit board) 28 ).

The LED assembly 29 is fixed in position by adhesion or the like so that the white light emitted from the plurality of LEDs 60 faces the light-incoming portion of the light guide plate 23.

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

The liquid crystal panel 10 and the backlight unit 20 are covered with a top cover 40 covering the upper edge of the liquid crystal panel 10 in a state where the edge is surrounded by the support main 30 having a rectangular frame shape, And the cover bottoms 50 are integrally joined to each other through the support main body 30.

Accordingly, the backlight unit including the liquid crystal panel 30 is prevented from being attached and detached, and the edge of the liquid crystal panel 30, which is susceptible to breakage due to an impact or the like, is protected and the sensitive electronic device such as the flexible circuit board 32 is connected.

On the other hand, the cover bottom and the top cover for moduleizing the liquid crystal display device in a unitary manner are made of a metal material such as a thin iron material, and are formed by opening all four corners by the margin in the forming process.

Particles such as fine dust and particles from the outside penetrate into the modularized liquid crystal display device through the gap thus opened. Particles such as fine fine particles or particles penetrate into the interior of the modularized liquid crystal display device, The whole of the liquid crystal panel may be contaminated and the sensitive electrical elements of the liquid crystal panel may be damaged or particles such as fine dust or particles may adhere between the optical sheets of the backlight unit or between the optical sheet and the light guide plate.

Or the cover bottom made of a metal material, since the support main is made of plastic, when an external force is applied to the modularized liquid crystal display device, a slight deformation occurs in each part, Particles such as fine dust and particles can be penetrated into the modularized liquid crystal display device through the gaps and even if an external force is not applied to the modularized liquid crystal display device as described above, In this case, too, particles such as fine dust or particles penetrate into the modularized liquid crystal display device through the gap to cause defects.

SUMMARY OF THE INVENTION It is a first object of the present invention to prevent particles such as fine particles and particles from entering into a modularized liquid crystal display device.

Accordingly, it is a second object to minimize the occurrence of defects due to particle penetration such as fine dust or particles.

In order to achieve the above object, a liquid crystal display device in which a liquid crystal panel and a backlight unit are modularized through a top cover, a support main, and a cover bottom; First and second cutting lines which are formed at first and second edges facing each other in the longitudinal direction and which are perpendicular to each other and which correspond to the edges of the liquid crystal display device and which surround the four edges of the liquid crystal display device, And an adhesive tape constituted by the first and second cutting lines made up of the fourth cutting line.

At this time, the adhesive tape has first and second folding lines along the longitudinal direction, and covers the upper surface, the side surface and the back surface of the four edge portions of the liquid crystal display device, and the first cutting line of the first cutting portion, And the second cutting line perpendicular to the first cutting line is formed to overlap the first folding line from the first cutting line.

The third cutting line of the second cutting portion is perpendicular to the longitudinal direction of the adhesive tape and the fourth cutting line perpendicular to the third cutting line is overlapped with the second folding line from the third cutting line. And the second cutting line and the fourth cutting line are formed to face each other.

A third folding line connecting the end of the second cutting line and the fourth cutting line is formed perpendicular to the longitudinal direction of the adhesive tape. The second folding line is perpendicular to the second cutting line from the end of the second cutting line, And a fourth folding line is formed parallel to the first cutting line to form the first folding line.

A fifth folding line is formed perpendicular to the fourth cutting line from the end of the fourth cutting line and parallel to the third cutting line to form a second folding portion, The second bent portion is bent toward the upper surface of the liquid crystal display device.

Here, the widths of the first and second bent portions are respectively 1/2 of the lateral thickness of the liquid crystal display device.

As described above, by wrapping all the four edge portions of the modularized liquid crystal display device through the adhesive tape according to the present invention, it is possible to prevent particles such as fine dust and particles from penetrating into the modularized liquid crystal display device from the outside There is an effect.

Thereby, it is possible to prevent the entire liquid crystal display device from being contaminated, and it is possible to prevent the sensitive electric elements of the liquid crystal panel from being damaged, and it is possible to prevent damage to the optical sheets of the backlight unit or between the optical sheet and the light guide plate It is possible to prevent the problem of degradation of the image quality due to adhesion of particles such as fine dust or particles.

Particularly, the adhesive tape of the present invention has a cutting portion corresponding to the edge of the liquid crystal display device, so that even when the adhesive tape is in the form of a long strip, the effect of preventing the adhesive tape from being developed even in the process of wrapping the edge of the liquid crystal display device have.

1 is a sectional view of a modular liquid crystal display device using a general LED as a light source.
2 is an exploded perspective view of a liquid crystal display device according to an embodiment of the present invention.
3 is a cross-sectional view schematically showing the modularized cross-section of FIG. 2;
4 is a perspective view schematically showing the structure of an adhesive tape according to an embodiment of the present invention.
5A to 5D are views schematically showing a state in which an outer side of a modularized liquid crystal display device is wrapped with an adhesive tape according to an embodiment of the present invention.

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

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

1, the liquid crystal display includes a liquid crystal panel 110, a backlight unit 120, a support main body 200, a cover bottom 150, and a top cover 140.

First, the liquid crystal panel 110 plays a key role in image display, and includes a first substrate 112 and a second substrate 114 which are bonded to each other with a liquid crystal layer interposed therebetween.

At this time, a plurality of gate lines and data lines intersect to define the pixels on the inner surface of the first substrate 112, which is usually referred to as a lower substrate or an array substrate, although not shown in the drawing, A thin film transistor (TFT) is provided at each intersection and is connected in one-to-one correspondence with the transparent pixel electrode formed in each pixel.

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 non-display elements such as a gate line, a data line, and a thin film transistor. In addition, a transparent common electrode covering these elements is provided.

A polarizing plate (not shown) for selectively transmitting only specific light is 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) The support main body 200 and the cover bottom 150 are properly brought into close contact with each other.

In the liquid crystal panel 110 having the above-described structure, when the thin film transistor selected for each gate line is turned on by the on / off signal of the gate driving circuit to be scanned, the signal voltage of the data driving circuit Line, and the alignment direction of the liquid crystal molecules is changed by the electric field between the pixel electrode and the common electrode, thereby exhibiting a difference in transmittance.

In addition, the liquid crystal display module according to the present invention is provided with a backlight unit 120 for supplying light from the rear surface of the liquid crystal display device module 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 a plurality of optical sheets 121 interposed therebetween .

The LED assembly 129 is positioned at one side of the light guide plate 123 so as 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 mounted at a spacing distance.

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.

On the other hand, by using the LED 129a constituted by an LED chip (not shown) that emits all the colors of RGB, the white light can be realized in each of the LEDs 129a, or a complete white color including a white- Emitting LED 129a may be used.

A plurality of LEDs 129a emitting RGB light may be bundled into one cluster and a plurality of LEDs 129a mounted on the PCB 129b may be arrayed on a PCB 129b It is also possible to arrange them in parallel or in a plurality of rows.

The light guide plate 123 uniformly spreads to a wide area of the light guide plate 123 to provide a surface light source to the liquid crystal panel 110 as the light incident from the LED 129a travels through the light guide plate 123 by total reflection several times.

The light guide plate 123 may include a pattern of a specific pattern on the back surface to supply a uniform surface light source.

Here, 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 plurality of optical sheets 121 on the light guide plate 123 include a diffusion sheet and at least one light condensing sheet and diffuse or condense light passing through the light guide plate 123 to form a more uniform surface Allow the light source to enter.

The liquid crystal panel 110 and the backlight unit 120 are modularized through the top cover 140, the support main 200 and the cover bottom 150. The top cover 140 is disposed on the top and side surfaces of the liquid crystal panel 110, And has an upper surface covering the upper surface edge of the liquid crystal panel (11 in FIG. 1) and a side extending vertically downward from the upper surface and being bent downwardly.

The four sides of the top cover 140 are separated from each other and connected to each other at four corners of the top cover 30, Are all open.

In addition, the cover bottom 150, on which the liquid crystal panel 110 and the backlight unit 120 are seated and which is the basis for assembling the entire apparatus of the LCD module, is formed into a rectangular plate shape, Lt; / RTI >

At this time, the cover bottom 40 is also formed by cutting off the four side edges of the cover cover 30, as in the case of the top cover 30, and all four corners thereof are open.

The support main body 130 of a square shape which rests on the cover bottom 150 and covers the edges of the liquid crystal panel 110 and the backlight unit 120 is divided into a top cover 140, .

Here, the top cover 140 may be referred to as a case top or a top case, and the support main 160 may be referred to as a guide panel or a main support or a mold frame, and the cover bottom 150 may be referred to as a bottom cover.

At this time, the backlight unit 120 having the above-described structure is generally called a side light type, and a plurality of LEDs 129a may be arranged in a plurality of layers on the PCB 129b according to the purpose. Furthermore, it is also possible to provide a plurality of LED assemblies 129 each in such a manner that the cover bottoms 150 are interposed therebetween along opposite edges of the cover bottoms 150 facing each other.

As shown in FIG. 3, the liquid crystal display is modularly integrated with the top cover 140, the support main 130, and the cover bottom 150 through assembly.

At this time, the characteristic of the present invention is that the outer side of the modular liquid crystal display device 100 is wrapped around the adhesive tape 200.

That is, the adhesive tape 200 covers the top and side edges of the four edges of the top cover 140 and extends to the side and back surface of the cover bottom 150 so as to cover the four edges of the modular liquid crystal display 100 Top and sides, and the back edge.

In this way, all four sides of the top cover 140 and the cover bottom 150 are opened by wrapping all the outer sides of the modularized liquid crystal display device 100 through the adhesive tape 200, and the modularized liquid crystal display device Even if fine gaps are generated at the respective joint portions of the top cover 140, the support main body 130 and the cover bottom 150 due to an external force applied to the top cover 140, It is possible to prevent the same particles from penetrating into the modularized liquid crystal display device 100.

This makes it possible to prevent the entire liquid crystal display device 100 from being contaminated and to prevent damage to sensitive electronic elements of the liquid crystal panel 110 and to prevent the optical elements 121 of the backlight unit 120 Or particles such as fine dust or particles are adhered between the optical sheet 121 and the light guide plate 123 to prevent image quality from being deteriorated.

4 is a perspective view schematically showing the structure of an adhesive tape according to an embodiment of the present invention.

As shown in the figure, the adhesive tape 200 is composed of a base film 201 made of PET resin and an adhesive material layer 203, and is entirely black for efficient light shielding.

The overall shape of the adhesive tape 200 is a long band shape having a constant width and is formed along the first and second edges 205a and 205b facing each other in the longitudinal direction of the adhesive tape 200, The first and second folding lines 211a and 211b are formed by perforating the balls in a line.

At this time, the adhesive tape 200 is folded along the first and second folding lines 211a and 211b so that the inner side facing the modular liquid crystal display device (100 in Fig. 3) And the top surface, the side surface, and the back edge of the modularized liquid crystal display device (100 in FIG. 3) are wrapped.

Here, the adhesive tape 200 from the first edge 205a to the first folding line 211a of the adhesive tape 200 is defined as area A, and the first folding line 211a to the second folding line 211b ) Is defined as a region B from the second folding line 211b to the second edge 205b as a region C, the area A of the adhesive tape 200 is divided into four regions of the modularized liquid crystal display device 100 And the area B surrounds the side of the rim of the modular liquid crystal display (100 in Fig. 3). The area C covers the rim of the rim of the four sides of the modular liquid crystal display (100 in Fig. 3) The edges are wrapped.

Therefore, it is preferable that the width of the area A does not invade the area for displaying the image of the liquid crystal panel (110 in Fig. 3).

The width of the B area is determined by the thickness of the modular liquid crystal display device 100 (FIG. 3) and the thickness of the top cover (140 in FIG. 3) and the cover bottom It is preferable to have a width that includes the thickness of 150 in FIG. 3).

Particularly, the adhesive tape 200 of the present invention is characterized in that the cutting portions 230a and 230b are formed at portions corresponding to the corners of the modularized liquid crystal display device 100 (FIG. 3).

That is, the adhesive tape 200 has a first portion 210a corresponding to one edge portion of the modular liquid crystal display device 100 (FIG. 3) and a second portion 210b perpendicular to the one edge portion of the modular liquid crystal display device And the second portion 210b corresponding to the neighboring rim portion is defined by being cut through the cutting portions 230a and 230b.

The cutting portions 230a and 230b are respectively formed on the first and second edges 205a and 205b of the adhesive tape 200. The first cutting portion 230a formed on the first edge 205a is formed of an adhesive tape A first cutting line 231a perpendicular to the longitudinal direction of the first cutting line 231a and crossing the A region of the adhesive tape 200 and a second cutting line 231b perpendicular to the longitudinal direction of the first cutting line 231a, And a second cutting line 233a formed to overlap with the second cutting line 211a.

The second cutting portion 230b formed on the second edge 205b of the adhesive tape 200 corresponding to the first cutting portion 230a is perpendicular to the longitudinal direction of the adhesive tape 200, A third cutting line 231b extending across the first cutting line 231b from the third cutting line 231b perpendicularly to the third cutting line 231b and formed to be in line with the first cutting line 231a, And a fourth cutting line 233b formed to overlap with the second cutting line 211b.

At this time, the second cutting line 233a and the fourth cutting line 233b are formed to face each other.

A third folding line 211c connecting the ends of the second cutting line 233a and the fourth cutting line 233b is formed on the B region of the adhesive tape 200 perpendicularly to the longitudinal direction of the adhesive tape 200 .

The adhesive tape 200 is passed through the first and second cutting portions 230a and 230b to cover the top, side, and back edges of the four edges of the modular liquid crystal display device 100 So that the adhesive tape 200 is naturally vertically bent at the edge of the display device (100 in Fig. 3).

Therefore, even though the adhesive tape 200 is in the form of a long strip, it is possible to cover all the outer sides of the modularized liquid crystal display device 100 (FIG. 3), and particularly, the phenomenon of the adhesive tape 200 at the corners does not occur.

A plurality of fine slit holes are aligned in a line perpendicular to the second cutting line 233a from the end of the second cutting line 233a and parallel to the first cutting line 231a to align the A- A fourth folding line 211b and a fourth folding line 211b are formed in the C region of the adhesive tape 200 parallel to the third cutting line 231b perpendicular to the fourth cutting line 233b from the end of the fourth cutting line 233b A fifth folding line 211e is formed.

The first folding line 220a is formed by the first and second cutting lines 231a and 233a and the fourth folding line 211d and the third and fourth cutting lines 231b and 233b and the fifth And the second bent portion 220b is formed by the folding line 211e.

The first and second bent portions 220a and 220b are formed by wrapping the edges of the modular liquid crystal display device one more time in the process of vertically bending the adhesive tape 200 in the modularized liquid crystal display device 100 So as to prevent the gap of the adhesive tape 200 from being generated.

Thus, the adhesive tape 100 of the present invention can be manufactured by forming the cutting portions 230a and 230b at the portions corresponding to the corners of the modular liquid crystal display device 100 (see FIG. 3) 3). In particular, a phenomenon of the adhesive tape 200 does not occur at the corners.

Therefore, it is possible to prevent particles such as fine dust and particles from penetrating into the modularized liquid crystal display device 100 (FIG. 3).

3) can be prevented from being contaminated, the sensitive electric elements of the liquid crystal panel (110 of FIG. 3) can be prevented from being damaged, and the backlight unit (120 of FIG. 3) Particles of fine dust or particles are adhered between the optical sheets 121 of FIG. 3 or the optical sheets 121 of FIG. 3 and the light guide plate 123 of FIG. 3, .

FIGS. 5A to 5D are views schematically showing the outer periphery of a modularized liquid crystal display device through an adhesive tape according to an embodiment of the present invention. FIG.

5A, the adhesive tape 200 has the adhesive material layer 201 (FIG. 4) facing the modular liquid crystal display device 100, and then the first adhesive material layer 200 of the modular liquid crystal display device 100 The B region of the first portion 210a of the adhesive tape 200 corresponding to the edge portion 100a is attached to the side surface of the modularized liquid crystal display device 100. [

4) of the adhesive tape 200 along the first and second folding lines (211a and 211b in Fig. 4) of the first portion 210a of the adhesive tape 200 is modularized The first portion 210a of the adhesive tape 200 is folded toward the first edge portion 100a of the liquid crystal display device 100 so that the first edge portion 100a of the modularized liquid crystal display device 100 To the upper and side surfaces and the back surface.

The first portion 210a of the adhesive tape 200 covers the entire outer side of the first edge portion 100a of the modular liquid crystal display device 100. [

At this time, the ends of the second and fourth cutting lines 233a and 233b are aligned with the longitudinal ends of the first edge portion 100a of the modular liquid crystal display device 100, The first and second bent portions 220a and 220b are folded along the fourth and fifth folding lines (211c and 211d in Fig. 4).

The first and second bent portions 220a and 220b are formed on the first and second edge portions 100a and 100b of the modular liquid crystal display device 100 wrapped by the first portion 210a of the adhesive tape 200, Thereby covering the corners of the main body 100b.

At this time, it is preferable that the first and second bent portions 220a and 220b have a width corresponding to a half of the side surface of the modular liquid crystal display device. This is to prevent the first and second bent portions 220a and 220b from overlapping each other to affect the thinness of the liquid crystal display device.

Next, as shown in Fig. 5C, the second portion 210b of the adhesive tape 200 is folded along the third folding line (211c in Fig. 4) formed in the area B of the adhesive tape 200 to form a modular liquid crystal display And folded toward the second edge portion 100b of the base 100.

At this time, the B region of the adhesive tape 200 is attached to the side surface of the second edge portion 100b of the modular liquid crystal display device 100. [

Next, as shown in Fig. 5D, along the first and second folding lines (211a and 211b in Fig. 4) of the second portion 210b of the adhesive tape 200, the adhesive material layer The second portion 210b of the adhesive tape 200 is folded to face the second edge portion 100b of the modular liquid crystal display device 100 so that the liquid crystal display device 100, Side and rear surfaces of the second edge portion 100b.

The second portion 210b of the adhesive tape 200 covers the entire outer side of the second edge portion 100 of the modular liquid crystal display device 100. [

By repeating the above process, all the four edges of the modular liquid crystal display device 100 are wrapped, all four corners of the top cover (140 in Fig. 3) and the cover bottom (150 in Fig. 3) 3) of the top cover (140 in FIG. 3), the support main (130 in FIG. 3), and the cover bottom (150 in FIG. 3) due to application of an external force to the liquid crystal display It is possible to prevent particles such as fine dust and particles from penetrating into the modularized liquid crystal display device 100 even if a minute gap is generated.

This can prevent the whole of the liquid crystal display device 100 from being contaminated, prevent the sensitive electric elements of the liquid crystal panel 110 (FIG. 3) from being damaged, and prevent the backlight unit 120 It is possible to prevent problems such as fine dust or particles adhering between the sheet (121 in FIG. 3) or between the optical sheet (121 in FIG. 3) and the light guide plate have.

Particularly, although the adhesive tape 200 of the present invention has a long strip shape, the adhesive tape 200 does not develop a denting phenomenon even in the process of wrapping the edges of the modularized liquid crystal display device 100.

200: adhesive tape, 201: base film, 203: adhesive material layer
205a, 205b: first and second edges
210a, 210b: first and second portions
211a, 211b, 211c, 211d, and 211e: first to fifth fold lines
220a, 220b: first and second bent portions
230a and 230b: first and second cutting portions
231a, 231b: first and third cutting lines, 233a, 233b: second and fourth cutting lines

Claims (10)

A liquid crystal display device in which a liquid crystal panel and a backlight unit are modularized through a top cover with an opened edge, a cover bottom with an opened edge, and a support main;
First and second cutting lines which are formed at first and second edges facing each other in the longitudinal direction and which are perpendicular to each other and which correspond to the edges of the liquid crystal display device and which surround the four edges of the liquid crystal display device, An adhesive tape having first and second cutting portions composed of a fourth cutting line
/ RTI >
Wherein the first edge is attached to the top cover, and the second edge is attached to the cover bottom.
The method according to claim 1,
Wherein the adhesive tape has first and second folding lines along the longitudinal direction to surround the upper surface, the side surface, and the back surface of the four edge portions of the liquid crystal display device.
3. The method of claim 2,
The first cutting line of the first cutting portion is perpendicular to the longitudinal direction of the adhesive tape and the second cutting line perpendicular to the first cutting line is formed to overlap the first folding line from the first cutting line Liquid crystal display device. 3. The method of claim 2,
The third cutting line of the second cutting portion is perpendicular to the longitudinal direction of the adhesive tape and the fourth cutting line perpendicular to the third cutting line is formed to overlap the second folding line from the third cutting line Liquid crystal display device.
4. The method according to one of claims 3 and 4,
Wherein the second cutting line and the fourth cutting line are formed to face each other.
6. The method of claim 5,
And a third folding line connecting the ends of the second cutting line and the fourth cutting line is formed perpendicular to the longitudinal direction of the adhesive tape.
The method of claim 3,
Wherein a fourth folding line is formed perpendicular to the second cutting line from the end of the second cutting line and parallel to the first cutting line to form a first folding line.
5. The method of claim 4,
And a fifth folding line perpendicular to the fourth cutting line and parallel to the third cutting line is formed from the end of the fourth cutting line to form a second folding line.
9. A method according to any one of claims 7 to 8,
Wherein the first bent portion is bent toward the back surface of the liquid crystal display device, and the second bent portion is bent toward the upper surface of the liquid crystal display device.
10. The method of claim 9,
And the widths of the first and second bent portions are each 1/2 of a lateral thickness of the liquid crystal display device.

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