KR20130054630A - Liquid crystal display device - Google Patents

Abstract

PURPOSE: An LCD(Liquid Crystal Display) device is provided to prevent light from being leaked to the outside with a support main. CONSTITUTION: A backlight unit(120) is located on a rear surface of a liquid crystal panel(110). A support main(130) wraps the boundary of the backlight unit. A light shielding tape(160) wraps the upper unit of the support main. A cover bottom(150) includes a first side surface(153a), a second side surface(153b), and a side wall unit(153). The second side surface is projected from the support main.

Description

[0001] The present invention relates to a liquid crystal display device,

The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device having a narrow bezel.

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 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.

The general backlight unit is classified into an edge type and a direct type according to the arrangement of the lamps. The edge type has a structure in which one or a pair of lamps are disposed at one side of the light guide plate, or two or Two pairs of lamps have a structure arranged on each side of the light guide plate, and the direct type has a structure in which several lamps are arranged under the optical sheet.

Here, the edge type is easier to manufacture than the direct type, and has the advantage of being lighter in weight and lower power consumption than the direct type.

1 is a cross-sectional view of an LCD including an edge type backlight unit.

As illustrated, a general edge type 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, and a plurality of LEDs (29a), LED PCB (printed circuit board: 29b, hereinafter, PCB) is mounted on which the plurality of LEDs (29a) is mounted It includes.

The liquid crystal panel 10 and the backlight unit 20 have a top cover 40 covering the top edge of the liquid crystal panel 10 and the back 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.

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.

On the other hand, such liquid crystal display devices have recently been demanded for narrow bezels in which the display area is wide and the bezel area, which is a non-display area other than the display area, is formed as small as possible.

However, there are too many components for modularizing the liquid crystal panel 10 and the backlight unit 20, and there is a limit in reducing the width of the bezel of the liquid crystal display device.

In order to reduce the width of the bezel of the liquid crystal display, when the thickness of the support main 30 is reduced, light leakage is generated as shown in FIGS. 2A and 2B by the light passing through the support main 30.

That is, since the support main 30 is composed of a synthetic resin mold material to which a certain amount of light is transmitted, when the thickness of the support main 30 becomes thin, some light passes through the support main 30 to cause light leakage to the outside. Will be.

Such light leakage is visible to the naked eye, which causes problems such as deterioration of the quality of the liquid crystal display such as brightness and image quality deterioration.

The present invention has been made to solve the above problems, and a first object of the present invention is to provide a liquid crystal display device having a narrow bezel.

In addition, the second object of the present invention is to improve the brightness and image quality of the liquid crystal display by preventing light leakage caused by the support main.

According to an aspect of the present invention, there is provided a liquid crystal display comprising: a liquid crystal panel; A backlight unit positioned on a rear surface of the liquid crystal panel; A support main covering an edge of the backlight unit; A light shielding tape covering an upper portion of the support main; The support main is seated, and includes a cover bottom including a side portion consisting of a first side and a second side extending from the first side and folded to be folded into the first side, the second side is the support main A liquid crystal display device protrudes upward and guides side edges of the liquid crystal panel.

In this case, the side portion is inner-hemming (inner-hemming) process, the first side and the second side is made of a "U" shape, the second side is formed shorter than the first side, The support main is located below the second side surface.

The edge of the support main corresponding to the edge of the cover bottom is formed to have a wider width than the other areas of the support main, and the edge of the cover bottom is smaller than the distance between the side surface of the cover bottom and the support main. And a gap between the edges of the support main is narrow.

In addition, the light blocking tape has adhesiveness, and the liquid crystal panel is attached to the upper portion of the support main through the light blocking tape, and the backlight unit includes an LED assembly, a light guide plate, and an optical sheet.

The liquid crystal panel is surrounded by an upper edge through a top cover, and a touch panel is attached to the liquid crystal panel through an adhesive material having elasticity.

As described above, according to the present invention, by removing the sidewall of the support main, there is an effect that it is possible to provide a liquid crystal display having a narrow bezel, the shading tape is formed so as to completely cover the upper portion of the support main, There is an effect that can prevent the light leakage caused by. Through this, there is an effect of improving the brightness and image quality of the liquid crystal display device.

Then, the side of the cover bottom extends from the first side and the first side through an inner-hemming process so that the second side is formed to be completely folded and bent into the first side. By guiding the side edge of the liquid crystal panel through, there is an effect that can prevent the flow of the liquid crystal panel occurs.

In addition, by allowing the support main to be positioned below the second side, the light leakage by the support main can be blocked in duplicate through the second side together with the shading tape, and the support main and the cover bottom are assembled and assembled with each other without a separate fastening structure. There is an effect that can be fastened.

1 is a cross-sectional view of an LCD including an edge type backlight unit.
Figure 2a to 2b is a photograph of the light leakage phenomenon occurs.
3 is a schematic cross-sectional view of a liquid crystal display device according to a first embodiment of the present invention.
4 is an exploded perspective view of a liquid crystal display device according to a second embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of the liquid crystal display of FIG.
6a to 6b are photographs of the light leakage blocked.
7 is a plan view schematically showing a state of the support main seated on a cover bottom.
8 is a cross-sectional view schematically illustrating a cross section of a touch panel type liquid crystal display device using a liquid crystal display device according to a second embodiment of the present invention.

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

- First Embodiment -

3 is a schematic cross-sectional view of a liquid crystal display device according to a first embodiment of the present invention.

As shown, the LED assembly 129 and the light guide plate 123, which are provided on one side of the light guide plate 123, the light guide plate 123, and the light guide plate 123 and include a plurality of LEDs 129a and a PCB 129b. The optical sheets 121 are stacked on top of each other to form the backlight unit 120.

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 are disposed on the backlight unit 120, And 114 are attached with polarizing plates 119a and 119b selectively transmitting only specific light.

At this time, the backlight unit 120 is seated in the inner side of the rectangular main frame support main 130 is surrounded by the edge, the cover bottom 150 is coupled to the back thereof. Then, the liquid crystal panel 110 is seated and supported by the upper portion of the support main 130, and the top cover 140 is assembled and fastened from the front of the liquid crystal panel 110.

Therefore, the liquid crystal panel 110 and the backlight unit 120 are integrally modularized through the cover bottom 150, the support main 130, and the top cover 140.

Here, in the most characteristic configuration of the first embodiment of the present invention, the liquid crystal panel 110 is attached to and fixed to the support main 130 between the liquid crystal panel 110 and the support main 130 and at the same time the liquid crystal panel 110. A light shielding tape 160 is provided to shield light from being leaked to a portion outside the screen display area of the device.

The light shielding tape 160 is made of an adhesive material such as a double-sided tape, and attaches and fixes the liquid crystal panel 110 to the support main 130, and has a black effect to block light.

The light blocking tape 160 is formed to completely cover the upper portion of the support main 130 and is formed to cover a part of the optical sheet 121.

Therefore, the modular liquid crystal display according to the first embodiment of the present invention can implement a narrower bezel than the conventional one, and can prevent the light leakage caused by the support main 130.

That is, the support main 130 of the present invention has a sidewall surrounding the edge of the liquid crystal panel 110 is removed, the thickness of the support main 130 of the conventional liquid crystal display device (removed compared to the D1 of FIG. 1) It is formed to have a thickness D2 as thin as the sidewall.

Therefore, the liquid crystal display of the present invention can implement a narrow bezel of 1 mm or less than the conventional liquid crystal display.

In addition, even when the width of the support main 130 is reduced, the support main 130 is formed to be completely covered by the light shielding tape 160, thereby preventing light leakage from being transmitted through the support main 130. have.

- Second Embodiment -

4 is an exploded perspective view of a liquid crystal display according to a second exemplary embodiment of the present invention.

As illustrated, the liquid crystal display device includes a liquid crystal panel 110 and a backlight unit 120, and includes a top cover 140 and a support main 130 for modularizing the liquid crystal panel 110 and the backlight unit 120. And a cover bottom 150.

Looking at each of them in more detail, the liquid crystal panel 110 plays a key role in image expression, and the first substrate 112 and the second substrate 114 bonded to each other with the liquid crystal layer interposed therebetween. Include.

In this case, although not shown in the drawing, 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, and a thin film transistor is formed at each intersection point. (thin film transistor: TFT) is provided and is connected one-to-one 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 the gate lines, the data lines, and the thin film transistors. In addition, color filters of red (R), green (G), and blue (B) colors and transparent common electrodes covering the black matrix are provided.

In addition, polarizing plates (not shown) for selectively transmitting only specific light are attached to the outer surfaces of the first and second substrates 112 and 114, respectively.

Along the at least one edge of the liquid crystal panel 110, the printed circuit board 117 is connected through a connecting member 116, such as a flexible circuit board or a tape carrier package (TCP), in the modularization process. The side surface of the support main 130 or the cover bottom 150 is properly folded to be in close contact.

When the thin film transistor selected for each gate line is turned on by the on / off signal of the gate driver circuit, the liquid crystal panel 110 transmits the signal voltage of the data driver circuit to the corresponding pixel electrode through the data line. The arrangement direction of the liquid crystal molecules is changed by the electric field between the pixel electrode and the common electrode, indicating a difference in transmittance.

The back of the liquid crystal panel 110 is provided with a backlight unit 120 for supplying light, so that the difference in transmittance represented by the liquid crystal panel 110 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 seated on the reflecting plate 125, and an optical sheet 121 interposed thereon. .

The LED assembly 129 is positioned at one side of the light guide plate 123 to face the light incident surface of the light guide plate 123, and the plurality of LEDs 129a and the plurality of LEDs 129a are mounted at a predetermined interval apart from each other. ).

At this time, the plurality of LEDs 129a include LED chips (not shown) which emit all of the colors of RGB or emit white, and emit white light toward the light incident surface of the light guide plate 123.

In addition, the plurality of LEDs 129a emit light having a color of red (R), green (G), and blue (B), respectively, and by lighting the plurality of RGB LEDs (129a) at once, white light by color mixing is generated. It can also be implemented.

The light guide plate 123 to which light emitted from the plurality of LEDs 129a of the LED assembly 129 is incident is performed by the light guide plate 123 while the light incident from the LED 129a travels inside the light guide plate 123 by a plurality of total reflections. Spread evenly over a wide area of to provide a surface light source to the liquid crystal panel (110).

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 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 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 integrally modularized through the top cover 140, the support main 130, and the cover bottom 150. The top cover 140 is an upper surface of the liquid crystal panel 110. And a rectangular frame having a cross section bent in a shape of “a” so as to cover the side edge, and open the front surface of the top cover 140 to display an image implemented in the liquid crystal panel 110.

In addition, the cover bottom 150 provides a horizontal surface 151 on which the backlight unit 120 including the liquid crystal panel 110 and the support main 130 are seated to support the entire liquid crystal display and simultaneously generate light loss. It serves as a lower frame to minimize the thing, the edge of the horizontal surface 151 is vertically bent to form a side portion (153).

At this time, the side portion 153 except for the corner of the cover bottom 150 is characterized in that the inner-hemming (inner-hemming) process.

That is, the side surface portion 153 of the cover bottom 150 extends from the first side surface 153a vertically bent from the horizontal surface 151 and the first side surface 153a to be completely folded into the first side surface 153a and bent. Consisting of a second side surface 153b, the overall shape of which is bent into a "U" form a double surface.

Hemming is the process of folding and folding the ends of a plate, which increases the rigidity of the product, suppresses warpage, enhances the appearance, and eliminates sharp edges.

In particular, by improving the rigidity of the cover bottom 150 supporting the entire liquid crystal display device, it is possible to increase the durability of the liquid crystal display device itself.

In this case, the second side surface 153b that is folded and bent into the first side surface 153a is shorter than the length of the first side surface 153a.

The support main 130 having a rectangular frame having a predetermined thickness is seated on the cover bottom 150 to surround the edge of the backlight unit 120.

In this case, the height of the support main 130 is formed to correspond to the height of the backlight unit 120.

The liquid crystal panel 110 is seated and supported above the support main 130, and the top cover 140 is assembled and fastened from the front of the liquid crystal panel 110.

Therefore, the liquid crystal panel 110 and the backlight unit 120 are integrally modularized through the cover bottom 150, the support main 130, and the top cover 140.

At this time, between the liquid crystal panel 110 and the support main 130, the liquid crystal panel 110 is attached and fixed to the support main 130, and the light is blocked to prevent light from leaking to portions outside the screen display area of the liquid crystal panel 110. Light shielding tape 160 is provided.

The light blocking tape 160 is formed to completely cover the upper portion of the support main 130 and is formed to cover a part of the optical sheet 121.

Here, the top cover 140 may also be referred to as a case top or a top case, and the support main 130 may also be referred to as a support main or main support, and a mold frame, and the cover bottom 150 may be referred to as a bottom cover or a lower cover. It is also built.

The modular liquid crystal display according to the second embodiment of the present invention described above can implement a narrower bezel by removing the sidewall of the support main 130, and the light shielding tape 160 can be supported by the support main 130. By forming it so as to cover it completely, it is possible to prevent the light leakage phenomenon caused by the support main 130.

This will be described in more detail with reference to FIG. 5.

5 is a cross-sectional view schematically illustrating the modular LCD of FIG. 4, and FIGS. 6A to 6B are photographs of light leakage blocked.

7 is a plan view schematically illustrating a state of the support main mounted on the cover bottom.

As shown, the LED assembly 129 and the light guide plate 123, which are provided on one side of the light guide plate 123, the light guide plate 123, and the light guide plate 123 and include a plurality of LEDs 129a and a PCB 129b. The optical sheets 121 are stacked on top of each other to form the backlight unit 120.

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 are disposed on the backlight unit 120, And 114 are attached with polarizing plates 119a and 119b selectively transmitting only specific light.

At this time, the support main 130 of the present invention has a rectangular rim shape, the backlight unit 120 is seated on the inner side of the support main frame 130, and the cover bottom 150 is coupled to the rear thereof. do.

Then, the liquid crystal panel 110 is seated and supported by the upper portion of the support main 130, and the top cover 140 is assembled and fastened from the front of the liquid crystal panel 110.

Therefore, the liquid crystal panel 110 and the backlight unit 120 are integrally modularized through the cover bottom 150, the support main 130, and the top cover 140.

Here, in the most characteristic configuration of the second embodiment of the present invention, the liquid crystal panel 110 is attached to and fixed to the support main 130 between the liquid crystal panel 110 and the support main 130 and at the same time the liquid crystal panel 110 A light shielding tape 160 is provided to shield light from being leaked to a portion outside the screen display area of the device.

The light shielding tape 160 is made of an adhesive material such as a double-sided tape, and attaches and fixes the liquid crystal panel 110 to the support main 130, and has a black effect to block light.

The light blocking tape 160 is formed to completely cover the upper portion of the support main 130 and is formed to cover a part of the optical sheet 121.

Accordingly, the modular liquid crystal display according to the second embodiment of the present invention can implement a narrower bezel than the conventional one, and can prevent light leakage caused by the support main 130.

That is, the conventional support main (30 of FIG. 1) surrounds the side edges of the backlight unit 120 and the liquid crystal panel 110 and simultaneously forms a step (31 of FIG. 1) for supporting the liquid crystal panel 110. It should be formed to have a thickness of at least 1 mm (D1 in FIG. 1).

Therefore, the existing liquid crystal display device has a bezel of at least 1 mm by the support main (30 in FIG. 1).

On the contrary, the support main 130 of the present invention has a structure in which sidewalls surrounding the edge of the liquid crystal panel 110 are removed, and the support main 130 is formed to have a thickness D2 as thin as the sidewalls removed.

Therefore, the liquid crystal display of the present invention can implement a narrow bezel of 1 mm or less than the conventional liquid crystal display.

In addition, even when the width of the support main 130 is reduced, the support main 130 is formed to be completely covered by the light shielding tape 160, thereby preventing light leakage from being transmitted through the support main 130. have.

In particular, the liquid crystal display according to the second exemplary embodiment of the present invention performs an inner-hemming process on the side portion 153 of the cover bottom 150, thereby allowing the liquid crystal display through the side portion 153 of the cover bottom 150. Side edges of the panel 110 may be guided, and rigidity of the entire LCD may be improved.

In more detail, the cover bottom 150 includes a horizontal surface 151 and a side portion 153 where the edges of the horizontal surface 151 are vertically bent, wherein the side portions 153 of the cover bottom 150 are inner- Inner-hemming treatment results in a double-sided structure.

That is, the side portion 153 includes a first side surface 153a vertically bent from the horizontal surface 151 and a second side surface 153b extending from the first side surface 153a and completely folded into the first side surface 153a. )

Therefore, the overall shape of the cover bottom 150 side portion 153 forms a "U" shape.

Through the inner-hemming treatment of the side portion 153 of the cover bottom 150, the rigidity of the cover bottom 150 is improved and the durability of the liquid crystal display device itself is increased.

In particular, the side portion 153 of the cover bottom 150 is formed to protrude upward from the support main 130, and the second side 153 b is formed to be folded into the first side 153 a, thereby covering the cover bottom 150. The second side surface 153b of the liquid crystal panel 110 may be positioned adjacent to the side edge of the liquid crystal panel 110 to guide the edge of the liquid crystal panel 110 through the second side surface 153b.

Therefore, the flow of the liquid crystal panel 110 can be prevented from occurring.

At this time, as the side portion 153 of the cover bottom 150 is thickened by the inner-hemming process, the bezel of the LCD may be widened. However, in the second embodiment of the present invention, the inside of the first side surface 153a is widened. The second side surface 153b that is folded and bent is formed to be shorter than the length of the first side surface 153a, so that the support main 130 is positioned below the second side surface 153b, whereby the bezel of the liquid crystal display device is formed. Widening can be prevented.

In addition, some of the light that is not blocked by the light-shielding tape 160 attached to the upper portion of the support main 130 may be prevented from entering the liquid crystal panel 110 by the end of the second side surface 153b. The liquid crystal display according to the second exemplary embodiment of the present invention can double-block light leakage caused by passing through the support main 130.

That is, the shading tape 160 should be formed to completely cover the upper portion of the support main 130, but due to a process error in the process of attaching the shading tape 160 to the upper portion of the support main 130, the support main 130 may be formed. The top may be partially exposed.

Accordingly, although light leakage may occur through a part of the exposed support main 130, the liquid crystal display according to the second exemplary embodiment of the present invention may cover the first of the cover bottom 150 over the support main 130. The second side 153b which is folded and bent inward of the side 153a is positioned so that light transmitted through the exposed part of the support main 130 is blocked through the second side 153b.

Therefore, by blocking the light leakage generated by passing through the support main 130 in two, it is possible to completely prevent the light leakage caused by the support main 130, as shown in Figure 6a to 6b.

In addition, the support main 130 is positioned below the second side 153b of the cover bottom 150, so that the support main 130 and the cover bottom 150 are assembled and fastened to each other without a separate fastening structure.

This is because the end of the second side 153b of the cover bottom 150 and the upper portion of the support main 130 are engaged with each other to implement a hook fastening method.

On the other hand, the support main 130 and the cover bottom 150 of the present invention is formed to have an assembly tolerance (s1) to each other for the assembly and fastening process, in particular, the cover bottom 150 through the inner-hemming process By forming the side surface 153b and having the support main 130 positioned below the second side surface 153b, an assembly tolerance s1 of the support main 130 and the cover bottom 150 is formed at least 0.2 mm or more. Should be.

As such, as the assembly tolerance s1 of the cover bottom 150 and the support main 130 is formed to be 0.2 mm or more, the flow of the support main 130 may occur in the cover bottom 150.

At this time, the cover bottom 150 of the present invention is inner-hemming the side portion 153 excluding the edge, the width of the cover bottom 150 as much as the thickness of the second side 153b. Thus, as shown in FIG. 7, the support main 130 of the present invention corresponds to an edge at which the inner hemming process of the cover bottom 150 is not formed, and thus, the width d2 of the edge of the support main 130 is determined. By forming thicker than the width (d1) of the other region, the assembly tolerance (s2) of the edge of the support main 130 and the edge of the cover bottom 150 is formed to be 0.1mm or less.

Therefore, while maintaining the overall assembly tolerance of the support main 130 and the cover bottom 150 is 0.2mm, the assembly tolerance of the edge of the support main 130 and the edge of the cover bottom 150 is 0.1mm or less, It is possible to prevent the flow of the support main 130 in the cover bottom 150.

8 is a cross-sectional view schematically illustrating a cross section of a touch panel type liquid crystal display device using a liquid crystal display device according to a second embodiment of the present invention.

As illustrated, the touch panel type liquid crystal display device includes a modular liquid crystal display device 100 and a touch panel 200 formed on an upper surface of the liquid crystal display device 100.

Here, the liquid crystal display device 100 includes a reflector plate 125, a light guide plate 123, and an LED assembly 129 provided on one side of the light guide plate 123 and including a plurality of LEDs 129a and a PCB 129b. The optical sheets 121 are stacked on the light guide plate 123 to form the backlight unit 120. The 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 positioned on the backlight unit 120. On each of the outer surfaces of the 114, polarizing plates 119a and 119b for selectively transmitting only specific light are attached.

The backlight unit 120 and the liquid crystal panel 110 are integrally modularized through the cover bottom 150 coupled to the back of the support main 130 having a rectangular frame shape.

In this case, the support main 130 is formed such that sidewalls are removed, and the light blocking tape 160 is formed to cover the upper side thereof, thereby reducing the bezel of the liquid crystal display device 100.

In addition, the cover bottom 150 has a side portion 153 extending from the first side surface 153a and the first side surface 153a through an inner-hemming process, and toward the inside of the first side surface 153a. The second side 153b is completely folded and bent.

Here, the side portion 153 of the cover bottom 150 is formed to protrude upward from the support main 130, so that the second side surface 153 b of the cover bottom 153 is adjacent to the side edge of the liquid crystal panel 110. Thus, the side edge of the liquid crystal panel 110 may be guided through the second side surface 153b to prevent the flow of the liquid crystal panel 110 from occurring.

In addition, since the support main 130 is positioned below the second side surface 153b, the light leakage by the support main 130 may be blocked by the second side surface 153b together with the light blocking tape 160. The support main 130 and the cover bottom 150 may be assembled and fastened to each other without a separate fastening structure.

In addition, the support main 130 corresponds to the edge where the inner hemming treatment of the cover bottom 150 is not formed, and the width of the edge of the support main 130 (d2 of FIG. 7) is the width of another region (FIG. 7). By forming thicker than d1), it is possible to prevent the flow of the support main 130 from occurring in the cover bottom 150.

In addition, the touch panel 200 is attached to the upper portion of the liquid crystal panel 110 through an adhesive material 210 such as a double-sided tape, and the adhesive material 210 includes the liquid crystal panel 110 and the touch panel 200. This prevents direct contact with each other and has a certain elasticity to absorb shocks applied from the touch panel 200.

In this case, the adhesive material 210 may use a poron material.

The touch panel 120 is a resistive digitizer, and includes an upper substrate 220 in a film form with an upper electrode (not shown), a lower substrate 230 with a lower electrode (not shown), and an upper portion. Spacers 240 are formed between the substrate 220 and the lower substrate 230 to have a predetermined space therebetween.

In this case, when the upper substrate 220 comes into contact with a certain point by a predetermined input means such as a finger 250 or a pen, the upper electrode (not shown) formed on the upper substrate 220 and the lower substrate 230 are formed. The lower electrodes (not shown) are energized with each other, and after reading the voltage value changed by the resistance value of the position, the position coordinates can be found according to the change of the potential difference in the control device.

Such a touch panel type liquid crystal display device has a merit that it is possible to input letters and pictures more easily and precisely, and thus is widely used in electronic notebooks or personal information processing devices.

As described above, the liquid crystal display of the present invention can provide a liquid crystal display having a narrow bezel by eliminating sidewalls of the support main 130 for guiding the side edges of the liquid crystal panel 110.

In addition, since the light shielding tape 160 is formed to completely cover the upper portion of the support main 130, light leakage by the support main 130 may be prevented.

In addition, the side surface portion 153 of the cover bottom 150 is extended from the first side surface 153a and the first side surface 153a through an inner-hemming process, and then to the inside of the first side surface 153a. The second side surface 153b which is completely folded and bent may be guided to guide the side edges of the liquid crystal panel 110 through the second side surface 153b to prevent the flow of the liquid crystal panel 110 from occurring. .

In addition, since the support main 130 is positioned below the second side surface 153b, the light leakage by the support main 130 may be blocked by the second side surface 153b together with the light blocking tape 160. The support main 130 and the cover bottom 150 may be assembled and fastened to each other without a separate fastening structure.

In addition, the support main 130 corresponds to the edge where the inner hemming treatment of the cover bottom 150 is not formed, so that the width of the support main 130 (d2 in FIG. 7) is the width of another region (d1 in FIG. 7). By forming a thicker than), it is possible to prevent the flow of the support main 130 in the cover bottom 150.

Meanwhile, in the above description, the liquid crystal display of the present invention has described the backlight unit 120, which is commonly referred to as an edge type method, as an example. It may be arranged in a plurality of layers, a fluorescent lamp may be used instead of the LED assembly 129.

When the fluorescent lamp is used, a lamp guide for protecting and guiding the outside of the fluorescent lamp and concentrating light toward the light guide plate 123 may be further included.

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

110: liquid crystal panel (112, 114: first and second substrates)
119a and 119b: first and second polarizing plates, 120 backlight unit, 121 optical sheet
123: light guide plate, 125: reflector, 129: LED assembly (129a: LED, 129b: PCB)
130: support main
140: top cover
150: cover bottom (151: horizontal plane, 153: side portion (153a: first side, 153b: second side))
160: shading tape

Claims (9)

A liquid crystal panel;
A backlight unit positioned on a rear surface of the liquid crystal panel;
A support main covering an edge of the backlight unit;
A light shielding tape covering an upper portion of the support main;
The support main is seated, and cover cover including a side portion consisting of a first side and a second side extending from the first side is folded inwardly folded of the first side
And a second side protruding to an upper portion of the support main to guide side edges of the liquid crystal panel.
The method of claim 1,
The side surface portion is inner-hemming, and the first side surface and the second side surface are formed in a "U" shape.
The method of claim 1,
The second side surface is shorter than the first side surface, and the support main is positioned below the second side surface.
The method of claim 1,
And an edge of the support main corresponding to an edge of the cover bottom is wider than another area of the support main.
The method of claim 4, wherein
The gap between the edge of the cover bottom and the edge of the support main is narrower than the distance between the side portion of the cover bottom and the support main.
The method of claim 1,
The light blocking tape has an adhesive property, and the liquid crystal panel is attached to an upper portion of the support main through the light blocking tape.
The method of claim 1,
The backlight unit includes a LED assembly, a light guide plate and an optical sheet.
The method of claim 1,
The liquid crystal panel is a liquid crystal display device wherein the top edge is surrounded by a top cover.
The method of claim 1,
And a touch panel attached to the liquid crystal panel through an adhesive material having elasticity.

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