KR20110101927A - 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 that can prevent particles such as fine dust and particles from penetrating into a modular liquid crystal display device.
A feature of the present invention is to surround all four edges of the modularized liquid crystal display device through the adhesive tape, thereby preventing particles such as fine dust or particles from penetrating into the modular liquid crystal display device from the outside.
As a result, the entire liquid crystal display device can be prevented from being contaminated, and the sensitive electrical elements of the liquid crystal panel can be prevented from being damaged, and fine particles or particles between the optical sheets of the backlight unit or between the optical sheet and the light guide plate can be prevented. The same particles may be attached to prevent the problem of deteriorating image quality.
In particular, the adhesive tape of the present invention forms a cutting portion corresponding to the edge of the liquid crystal display device, so that even when the adhesive tape has a long band shape, the phenomenon such as the movement of the adhesive tape does not occur even when the edge of the liquid crystal display device is wrapped. have.

Description

Liquid crystal display device

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 that can prevent particles such as fine dust and particles from penetrating into a modular liquid crystal display device.

Liquid crystal display devices (LCDs), which are used for TVs and monitors due to their high contrast ratio and are advantageous for displaying moving images, are characterized by optical anisotropy and polarization of liquid crystals. The principle of image implementation by

Such a liquid crystal display is an essential component of a liquid crystal panel bonded through a liquid crystal layer between two side-by-side substrates, and realizes a difference in transmittance by changing an arrangement direction of liquid crystal molecules with an electric field in the liquid crystal panel. do.

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

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

Among them, LEDs are particularly widely used as light sources for displays with features such as small size, low power consumption, and high reliability.

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

As illustrated, a general 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 a part that plays a key role in image expression and is composed of first and second substrates 12 and 14 bonded to each other with a liquid crystal layer interposed therebetween.

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

The backlight unit 20 includes an LED assembly 29 arranged along at least one edge length direction of the support main 30, a white or silver reflecting plate 25 seated on the cover bottom 50, and a reflecting plate ( A light guide plate 23 seated on 25 and a plurality of optical sheets 21 interposed thereon.

At this time, the LED assembly 29 is configured on one side of the light guide plate 23, a plurality of LEDs 60 that emit white light, and the LED 60 (PCed printed circuit board: 28, hereinafter, PCB) is mounted thereon It includes).

The LED assembly 29 is fixed by a method such as adhesion so that the white light emitted from the plurality of LEDs 60 faces the light incident portion of the light guide plate 23.

In addition, reference numerals 19a and 19b denote polarizers attached to the front and rear 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 have a top cover 40 surrounding the top edge of the liquid crystal panel 10 and a back surface of the backlight unit 20 in a state where the edges are surrounded by the support main 30 having a rectangular frame shape. Cover cover 50 to cover each is coupled in front and rear are integrated through the support main 30 as a medium.

This prevents the detachment of the backlight unit including the liquid crystal panel 30 and protects the edge of the liquid crystal panel 30 which is easily damaged by an impact or the like and is connected to a sensitive electrical element such as the flexible circuit board 32.

Meanwhile, the cover bottom and the top cover which integrate and modularize the liquid crystal display device are made of a metal material such as a thin iron material, and all four corners are opened by margins in the forming process.

Thus, particles such as fine dust or particles penetrate into the inside of the modular liquid crystal display device from the outside through the gaps thus opened. It contaminates the whole and damages the sensitive electrical elements of the liquid crystal panel, or particles such as fine dust or particles adhere between the optical sheets of the backlight unit or between the optical sheet and the light guide plate, thereby causing a deterioration in image quality.

Compared to the top cover and cover bottom made of metal, the support main is made of plastic. Therefore, when external force is applied to the modular liquid crystal display device, slight deformation occurs in each part and minute gaps are generated at each joining part. Through such a gap, particles such as fine dust or particles can penetrate into the modular liquid crystal display device. Also, as described above, even when no external force is applied to the modular liquid crystal display device, assembly tolerances between components, etc. Even when a small gap is often generated, even in this case, particles such as fine dust or particles penetrate into the modular liquid crystal display device to generate a defect.

The present invention has been made to solve the above problems, and a first object of the present invention is to prevent particles such as fine dust or particles from flowing into the modular liquid crystal display.

For this reason, the second object is to minimize the occurrence of defects due to particle penetration such as fine dust or particles.

In order to achieve the above object, the liquid crystal panel and the backlight unit are a liquid crystal display device is modularized through the top cover, the support main and the cover bottom; First and second cutting lines and third and second wrappers which surround four edge portions of the liquid crystal display and are formed perpendicular to each other at first and second edges facing each other in the longitudinal direction, respectively, corresponding to corners of the liquid crystal display. The present invention provides a liquid crystal display device including an adhesive tape having first and second cutting parts formed of a fourth cutting line.

In this case, the adhesive tape has first and second fold lines formed along a longitudinal direction, and surrounds top, side, and back surfaces of four edge portions of the liquid crystal display, and the first cutting line of the first cutting portion is the adhesive tape. The second cutting line perpendicular to the longitudinal direction of the second cutting line perpendicular to the first cutting line may be formed to overlap the first fold line from the first cutting line.

The third cutting line of the second cutting part may be perpendicular to the longitudinal direction of the adhesive tape, and the fourth cutting line perpendicular to the third cutting line may overlap the second folding line from the third cutting line. The second cutting line and the fourth cutting line are formed to face each other.

In addition, 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, and is perpendicular to the second cutting line from the end of the second cutting line. And a fourth fold line parallel to the first cutting line, forming a first bent portion.

In addition, a fifth fold line is formed from the end of the fourth cutting line perpendicular to the fourth cutting line and parallel to the third cutting line to form a second bent portion, wherein the first bent portion of the liquid crystal display device. The second bent portion is bent toward the rear surface, and the second bent portion is bent toward the upper surface of the liquid crystal display.

Here, the widths of the first and second bent portions are each 1/2 of the side thickness of the liquid crystal display.

As described above, according to the present invention, by wrapping all four edges of the modular liquid crystal display device through the adhesive tape, it is possible to prevent particles such as fine dust or particles from penetrating into the modular liquid crystal display device from the outside. It has an effect.

Through this, there is an effect to prevent the entire liquid crystal display device from being contaminated, there is an effect to prevent damage to the sensitive electrical elements of the liquid crystal panel, between the optical sheets of the backlight unit or between the optical sheet and the light guide plate. Particles such as fine dust or particles are attached to the effect to prevent the problem of deteriorating the image quality occurs.

In particular, the adhesive tape of the present invention forms a cutting portion corresponding to the edge of the liquid crystal display device, so that even when the adhesive tape has a long band shape, the phenomenon such as the movement of the adhesive tape does not occur even when the edge of the liquid crystal display device is wrapped. have.

1 is a cross-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 according to an exemplary embodiment of the present invention.
3 is a schematic cross-sectional view of the cross section of FIG. 2 modularized;
Figure 4 is a perspective view schematically showing the structure of the adhesive tape according to an embodiment of the present invention.
5a to 5d schematically illustrate a state of enclosing an outer side of a modular liquid crystal display device through an adhesive tape according to an exemplary 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 according to an exemplary embodiment of the present invention.

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

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

At this time, although not shown in the drawings under the premise of an active matrix method, a plurality of gate lines and data lines intersect each other and a pixel is defined on an inner surface of the first substrate 112, which is commonly referred to as a lower substrate or an array substrate. Thin film transistors (TFTs) are provided at each intersection to correspond one-to-one to the transparent pixel electrodes formed in each pixel.

An inner surface of the second substrate 114, called an upper substrate or a color filter substrate, may correspond to each pixel, for example, a color filter of red (R), green (G), and blue (B) color, and these. A black matrix is provided around each other to cover non-display elements such as gate lines, data lines, and thin film transistors. In addition, a transparent common electrode covering them is provided.

A polarizer (not shown) for selectively transmitting only specific light is attached to the outer surfaces of the first and second substrates 112 and 114, respectively.

In addition, the printed circuit board 117 is connected through at least one edge of the liquid crystal panel 110 via a connecting member 116 such as a flexible circuit board or a tape carrier package (TCP). The side surface of the support main 200 or the cover bottom 150 is properly folded to be in close contact.

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 driver circuit which is scanned and transmitted, the signal voltage of the data driver circuit becomes data. The liquid crystal molecules are arrayed by the electric field between the pixel electrode and the common electrode.

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 panel 110 so that the difference in transmittance is expressed to the outside.

The backlight unit 120 includes an LED assembly 129, a white or silver reflecting plate 125, a light guide plate 123 mounted on the reflecting plate 125, and a plurality of optical sheets 121 interposed therebetween. Include.

The LED assembly 129 described above is located at one side of the light guide plate 123 to face the light incident surface of the light guide plate 123, and the LED assembly 129 has a plurality of LEDs 129a and LEDs 129a thereof. It includes a PCB (129b) that is mounted spaced apart.

In this case, the plurality of LEDs 129a emit light having red (R), green (G), and blue (B) colors toward the light incident surface of the light guide plate 123, respectively, and the plurality of RGB LEDs (129a). ) Can be lit at once to realize white light by color mixing.

On the other hand, by using the LED (129a) configured with an LED chip (not shown) that emits all the colors of RGB, each of the LEDs (129a) may be implemented to implement white light, or including a chip that emits white The emitting LED 129a may be used.

In addition, a plurality of LEDs 129a emitting RGB light may be bundled and mounted in a cluster, and the plurality of LEDs 129a mounted on the PCB 129b may be arranged on the PCB 129b. It is also possible to arrange them side by side or to arrange them side by side in a plurality of columns.

The light guide plate 123 evenly spreads the light incident from the LED 129a to a wide area of the light guide plate 123 while propagating through the light guide plate 123 by several total reflections to provide 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 rear surface to supply a uniform surface light source.

Here, the pattern may be configured in various ways, such as an elliptical pattern, a polygon pattern, a hologram pattern, and the like to guide the 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 reflective plate 125 is positioned on the rear surface of the light guide plate 123, and reflects light passing through the rear surface of the light guide plate 123 toward the liquid crystal panel 110 to improve the brightness of the light.

The plurality of optical sheets 121 on the light guide plate 123 include a diffusion sheet and at least one light collecting sheet, and diffuse or condense the light passing through the light guide plate 123 to provide a more uniform surface to the liquid crystal panel 110. 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 the top and side surfaces of the liquid crystal panel 110. A rectangular frame having a cross section bent in a shape of “a” so as to cover an edge, and includes a top surface covering an upper edge of the liquid crystal panel 11 of FIG. 1 and a side surface extending downward from the top surface.

The front cover 140 is opened to display an image embodied in the liquid crystal panel 110. In this case, four sides of the top cover 140 are separated from each other without being connected to each other, and four corners of the top cover 30 are formed. Are all open.

In addition, the cover bottom 150 on which the liquid crystal panel 110 and the backlight unit 120 are mounted, and which is the basis for assembling the entire structure of the liquid crystal display device module, has a rectangular plate shape and vertically bent four edges thereof. It includes a side.

In this case, like the cover cover 40, the sides of the four edges, like the top cover 30, are not connected to each other and are configured to be broken, and all four corners thereof are opened.

In addition, the support main 130 having a rectangular frame shape seated on the cover bottom 150 and covering the edges of the liquid crystal panel 110 and the backlight unit 120 may include the top cover 140 and the cover bottom 150. Combined.

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

In this case, the backlight unit 120 having the above-described structure is generally called a side light method, and according to the purpose, a plurality of LEDs 129a may be arranged on the PCB 129b. In addition, it is also possible to provide a plurality of sets of the LED assembly 129, respectively, to interpose corresponding to each other along both edges of the cover bottom 150 facing each other.

As shown in FIG. 3, the liquid crystal display is integrally modularized through assembly of the top cover 140, the support main 130, and the cover bottom 150.

At this time, the characteristic of the present invention is to wrap the outside of the modular liquid crystal display device 100 with 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 the back side of the cover bottom 150 to form the four edge portions of the modular liquid crystal display 100. It wraps around the top, side and back edges.

Thus, by wrapping all the outer side of the modular liquid crystal display device 100 through the adhesive tape 200, all four corners of the top cover 140 and the cover bottom 150 is opened, the modular liquid crystal display device ( 100) even if a small gap is generated at each coupling portion of the top cover 140, the support main 130, and the cover bottom 150 due to an external force applied or an assembly tolerance between the respective components, The same particles can be prevented from penetrating into the modular liquid crystal display device 100.

Through this, the entire liquid crystal display device 100 may be prevented from being contaminated, the sensitive electrical elements of the liquid crystal panel 110 may be prevented from being damaged, and between the optical sheets 121 of the backlight unit 120. Alternatively, particles such as fine dust or particles may be attached between the optical sheet 121 and the light guide plate 123 to prevent a problem of degrading image quality.

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

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

The overall shape of the adhesive tape 200 is a long strip shape having a predetermined width, and a plurality of fine slits in advance along the first and second edges 205a and 205b facing each other in the longitudinal direction of the adhesive tape 200. The balls are drilled in a row to form first and second fold lines 211a and 211b.

At this time, the adhesive tape 200 is folded along the first and second fold lines 211a and 2110b, so that the adhesive tape 200 has a cross section perpendicular to the longitudinal direction so as to open the inner side toward the modular liquid crystal display (100 in FIG. 3). The shape has a "c" shape to surround the top, side, and rear edges of the four edge portions of the modular liquid crystal display (100 in FIG. 3).

Here, the adhesive tape 200 from the first edge 205a to the first fold line 211a of the adhesive tape 200 is defined as an area A, and the first fold line 211a to the second fold line 211b are defined as A regions. ) Is defined as a region B and a region C from the second fold line 211b to the second edge 205b, where the area A of the adhesive tape 200 is modularized. The upper edge of the edge portion surrounds the edge, and the region B surrounds the four edge portions of the modular liquid crystal display (100 in FIG. 3), and the region C is the rear surface of the four edge portions of the modular liquid crystal display (100 in FIG. 3). It will wrap around the edge.

Therefore, it is preferable that the width of the A region does not invade the region displaying the image of the liquid crystal panel 110 of FIG. 3.

In addition, the width of the region B may cover the thickness of the modular liquid crystal display (100 in FIG. 3), the top cover (140 in FIG. 3), and cover cover (to cover the side surface of the modular liquid crystal display (100 in FIG. 3). It is desirable to have a width including the thickness of 150 in FIG. 3.

In particular, 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 edges of the modular liquid crystal display (100 in FIG. 3).

That is, the adhesive tape 200 is perpendicular to the first portion 210a corresponding to one edge of the modular liquid crystal display (100 in FIG. 3) and one edge of the modular liquid crystal display (100 in FIG. 3). The second portion 210b corresponding to the other edge portion adjacent to the other edge portion is divided and defined through the cutting portions 230a and 230b.

The cutting parts 230a and 230b are formed at the first and second edges 205a and 205b of the adhesive tape 200, respectively, and the first cutting parts 230a formed at the first edge 205a are formed of the adhesive tape ( A first cutting line 231a perpendicular to the longitudinal direction of the cross-section 200 and crossing the area A of the adhesive tape 200, and a first fold line from the first cutting line 231a perpendicular to the first cutting line 231a. The second cutting line 233a is formed to overlap the 211a.

In addition, the second cutting portion 230b formed at 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 and has a C of the adhesive tape. A third cutting line 231b formed to cross the region and coplanar with the first cutting line 231a, and a second fold line from the third cutting line 231b perpendicular to the third cutting line 231b. And a fourth cutting line 233b formed to overlap the 211b.

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

In addition, a third folding line 211c connecting the ends of the second cutting line 233a and the fourth cutting line 233b to the region B of the adhesive tape 200 perpendicular to the longitudinal direction of the adhesive tape 200. Is formed.

Through the first and second cutouts 230a and 230b, the adhesive tape 200 covers the top, side, and back edges of the four edges of the modular liquid crystal display (100 in FIG. The adhesive tape 200 naturally has a vertically folded structure at the corner of the display device (100 of FIG. 3).

Therefore, even though the adhesive tape 200 has a long band shape, all of the outside of the modular liquid crystal display (100 in FIG. 3) may be wrapped, and in particular, the phenomenon such as the movement of the adhesive tape 200 is not generated at the corners.

In addition, a plurality of fine slit holes are drilled 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 the area A of the adhesive tape 200. The fourth folding line 211d is formed, and is perpendicular to the fourth cutting line 233b from the end of the fourth cutting line 233b and parallel to the third cutting line 231b in the C region of the adhesive tape 200. The fifth fold line 211e is formed.

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

The first and second bent portions 220a and 220b may further wrap the edges of the modular liquid crystal display in the process of bending the adhesive tape 200 vertically at the corners of the modular liquid crystal display (100 in FIG. 3). It is to serve to prevent the gap of the adhesive tape 200 to occur.

As described above, the adhesive tape 100 of the present invention forms the cutting parts 230a and 230b at a portion corresponding to the edge of the modularized liquid crystal display device 100 of FIG. 3, all of the outside of the 100 may be wrapped, and in particular, a phenomenon such as the wick 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 modular liquid crystal display device 100 (FIG. 3) from the outside.

As a result, the entire liquid crystal display (100 of FIG. 3) may be prevented from being contaminated, and the sensitive electrical elements of the liquid crystal panel (110 of FIG. 3) may be prevented from being damaged, and the backlight unit (120 of FIG. 3) may be prevented. 3) particles such as fine dust or particles are attached between the optical sheets (121 of FIG. 3) or between the optical sheet (121 of FIG. 3) and the light guide plate (123 of FIG. 3) to deteriorate image quality. It can prevent.

5A through 5D are views schematically illustrating an outer side of a modular liquid crystal display device with an adhesive tape according to an exemplary embodiment of the present invention.

As shown in FIG. 5A, the adhesive tape 200 directs the adhesive material layer (201 of FIG. 4) toward the modular liquid crystal display device 100, and thereafter, the first tape of the modular liquid crystal display device 100. An area B of the first portion 210a of the adhesive tape 200 corresponding to the edge portion 100a is attached to the side surface of the modular liquid crystal display device 100.

Next, the adhesive material layer (201 of FIG. 4) of the adhesive tape 200 is modularized along the first and second fold lines (211a and 211b of FIG. 4) of the first portion 210a of the adhesive tape 200. The first edge portion 100a of the liquid crystal display device 100 in which the first portion 210a of the adhesive tape 200 is modularized by folding and folding toward the first edge portion 100a of the liquid crystal display device 100. On the top, side, and back of the

As a result, the first portion 210a of the adhesive tape 200 surrounds all of the outside of the first edge portion 100a of the modular liquid crystal display device 100.

In this case, the ends of the second and fourth cutting lines 233a and 233b correspond to the ends of the first edge portion 100a of the modular liquid crystal display device 100 in the longitudinal direction, as shown in FIG. 5B. The first and second bent portions 220a and 220b are folded along the fourth and fifth folding lines 211c and 211d of FIG. 4.

The first and second bent portions 220a and 220b may include the first edge portion 100a and the second edge portion of the modular liquid crystal display device 100 surrounded by the first portion 210a of the adhesive tape 200. It wraps around the edge of 100b.

In this case, it is preferable that the first and second bent portions 220a and 220b have a width corresponding to 1/2 of a side surface of the modular liquid crystal display. This is to prevent the first and second bent portions 220a and 220b from overlapping each other to affect the thinness of the LCD.

Next, as illustrated in FIG. 5C, the second portion 210b of the adhesive tape 200 is modularized along the third fold line (211c in FIG. 4) formed in the region B of the adhesive tape 200. It folds toward the 2nd edge part 100b of 100. As shown in FIG.

In this case, the region B 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 illustrated in FIG. 5D, the adhesive material layer of the adhesive tape 200 is formed along the first and second fold lines (211a and 211b of FIG. 4) of the second portion 210b of the adhesive tape 200. By folding the 201 of FIG. 4 toward the second edge portion 100b of the modular liquid crystal display device 100, the liquid crystal display device 100 in which the second portion 210b of the adhesive tape 200 is modulated. To be attached to the top and side and back of the second edge portion (100b).

As a result, the second portion 210b of the adhesive tape 200 surrounds all of the outside of the second edge portion 100 of the modular liquid crystal display device 100.

By repeating the above process, by wrapping all four edges of the modular liquid crystal display device 100, all four corners of the top cover (140 in FIG. 3) and the cover bottom (150 in FIG. 3) are opened and modularized. The external cover is applied to the liquid crystal display device 100 or the assembly tolerances between the respective components, so that the top cover (140 of FIG. 3), the support main (130 of FIG. 3), and the cover bottom (150 of FIG. 3) are coupled to each other. Even when a minute gap occurs, it is possible to prevent particles such as fine dust or particles from penetrating into the modular liquid crystal display device 100 from the outside.

As a result, the entire liquid crystal display 100 may be prevented from being contaminated, and the sensitive electrical elements of the liquid crystal panel 110 may be prevented from being damaged, and the optical of the backlight unit 120 of FIG. Particles such as fine dust or particles adhere between the sheets (121 of FIG. 3) or between the optical sheet (121 of FIG. 3) and the light guide plate (123 of FIG. 3) to prevent the problem of deteriorating image quality. have.

In particular, although the adhesive tape 200 of the present invention has a long band shape, the adhesive tape 200 does not occur even when the edge of the modular liquid crystal display device 100 is wrapped around the adhesive tape 200.

200: adhesive tape, 201: base film, 203: adhesive material layer
205a, 205b: first and second edges
210a, 210b: first and second parts
211a, 211b, 211c, 211d, and 211e: first to fifth fold lines
220a, 220b: first and second bent portions
230a, 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, a support main and a cover bottom;
First and second cutting lines and third and second edges which surround four edge portions of the liquid crystal display and are formed perpendicular to each other at first and second edges facing each other in the longitudinal direction to correspond to edges of the liquid crystal display. Adhesive tape composed of first and second cutting parts comprising a fourth cutting line
Liquid crystal display comprising a.
The method of claim 1,
The adhesive tape has a first and a second fold line along the longitudinal direction, the liquid crystal display device surrounding the top, side and back of the four edges of the liquid crystal display.
The method of claim 2,
The first cutting line of the first cutting part 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 fold line from the first cutting line. LCD display device. The method of claim 2,
The third cutting line of the second cutting part 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 fold line from the third cutting line. LCD display device.
The method according to any one of claims 3 and 4,
The second cutting line and the fourth cutting line are formed to face each other.
The method of claim 5, wherein
And a third fold line connecting the second cutting line and the end of the fourth cutting line to be perpendicular to the longitudinal direction of the adhesive tape.
The method of claim 3, wherein
And a fourth folding line formed perpendicularly to the second cutting line and parallel to the first cutting line from an end of the second cutting line to form a first bent portion.
The method of claim 4, wherein
And a fifth folding line formed perpendicular to the fourth cutting line and parallel to the third cutting line from an end of the fourth cutting line to form a second bent portion.
The method according to any one of claims 7 and 8,
And the first bent portion is bent toward the rear surface of the liquid crystal display device, and the second bent portion is bent toward the upper surface of the liquid crystal display device.
The method of claim 9,
And a width of the first and second bent portions is 1/2 of a side thickness of the liquid crystal display.

Images