KR20180020001A - Display device having separatble guide panel - Google Patents

Abstract

The present invention relates to a display device having a separable guide panel. Separated first and second guide panels are assembled to be spaced apart from each other by a predetermined distance. Even when an external impact from the outside is applied and the first guide panel moves, the second panel doesn′t move. Double-sided tape is not disposed on the lower surface of the first guide panel that moves but on the lower surface of the second guide panel which doesn′t move. Accordingly, even when the first guide panel moves due to the external impact, no force is applied to a reflection plate, so that the reflection plate is prevented from being wrinkled.

Description

DISPLAY DEVICE HAVING SEPARATABLE GUIDE PANEL [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly, to a display device having a detachable guide panel and capable of preventing the occurrence of wrinkles of a reflective sheet caused by the flow of a guide panel.

A liquid crystal display device is a transmissive display device that displays a desired image on a screen by adjusting the amount of light transmitted through the liquid crystal panel by the refractive index anisotropy of the liquid crystal layer disposed between the two polarizing films. Therefore, in the liquid crystal display device, a back light, which is a light source that transmits the liquid crystal layer for displaying an image, is provided. Generally, the backlight can be roughly divided into two types.

First, a light source is provided on a side surface of a liquid crystal panel to provide a light to a liquid crystal layer, and a second type is a direct light type backlight in which a light source provides light directly below the liquid crystal panel.

The side-type backlight is provided on the side surface of the liquid crystal panel and can supply light transmitted through the liquid crystal panel through the reflection plate and the light guide plate. The lateral type backlight can be realized in a thin shape due to the thickness of the thin light guide plate. Therefore, it is mainly used for a smart phone and a notebook where a thin display device is required.

However, the following problems arise in such a lateral type backlight.

A reflector is provided under the light guide plate of the side-type backlight to reflect the light output through the lower portion of the light guide plate and supply the reflected light to the liquid crystal panel, thereby improving the light efficiency of the backlight. When wrinkles occur in the reflective sheet, the incident light is not uniformly reflected but is reflected nonuniformly. Therefore, the intensity of light reflected on the reflective sheet and supplied to the liquid crystal panel varies depending on the position by corrugation, There is a defect that an image of uneven brightness is realized over the entire screen of the display device.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a guide panel for a vehicle, comprising a first guide panel and a second guide panel spaced apart from each other by a predetermined distance so as to be detachable, And to provide a display device which can be used as a display device.

In order to achieve the above-mentioned object, the present invention comprises a first guide panel and a second guide panel which can detach the guide panel. At this time, since the first guide panel and the second guide panel are assembled to be spaced apart from each other by a certain distance, the second guide panel does not flow even when the first guide panel flows due to impact from the outside. Since the double-sided tape is disposed only on the lower surface of the second guide panel which is not provided with the double-sided tape on the lower surface of the first guide panel that flows, and the reflector is attached to the reflector even when the first guide panel flows due to external impact The force is not applied and the reflection plate is not wrinkled.

A light shielding tape is disposed on the upper surfaces of the first guide panel and the second guide panel and the optical sheet. The light shielding tape is composed of a first area disposed on the upper surface of the first guide panel and the second guide panel and having a first area having no adhesive force and a second area having adhesive force and attached to the upper surface of the optical sheet, It is possible to prevent wrinkles from being generated in the optical sheet because no force is applied to the optical sheet.

The first guide panel may have a groove and the second guide panel may be inserted into the groove. In this case, the second guide panel may be provided at a corner or a side of the first guide panel.

In addition, the first guide panel and the second guide panel may each have a bar shape that forms a rectangular frame.

In the present invention, the guide panel is composed of two detachable guide panels and the two guide panels are arranged at predetermined intervals, so that when an external force such as an impact is applied from the outside, the guide panel with the reflector does not flow, Only the guide panel is allowed to flow so that the impact does not propagate the reflector. As a result, it is possible to prevent the reflection plate from being wrinkled, and it is possible to always supply light of uniform luminance to the liquid crystal panel by preventing uneven reflection of light due to wrinkles.

Further, in the present invention, the guide panel and the light-shielding tape, which is disposed on the upper surface of the optical sheet so that light is leaked between the guide panel and the optical sheet, is attached to only the upper surface of the optical sheet and is not attached to the upper surface of the guide panel, So that no impact is transmitted to the optical sheet. As a result, it is possible to prevent wrinkles from being generated on the optical sheet, and it is possible to prevent light of uneven intensity due to wrinkles from being supplied to the liquid crystal panel.

As described above, according to the present invention, it is possible to prevent the occurrence of wrinkles of the reflection plate and the optical sheet due to an external impact, so that it is possible to always supply light of a uniform luminance to the liquid crystal panel. As a result, .

1 is an exploded perspective view showing a structure of a display device according to the present invention;
2 is a sectional view showing a structure of a display device according to the present invention;
3 is an enlarged view of area A in Fig.
4 is a partially enlarged view of a display device having a guide panel of a general structure;
5A and 5B are diagrams showing a guide panel when an external impact is applied to the display device according to the present invention.
6 is a view showing a first guide panel and a second guide panel in a display device according to the present invention.
7 is a view showing another structure of a guide panel of a display device according to the present invention;
8 is a view showing another structure of a guide panel of a display device according to the present invention.

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

According to the present invention, it is possible to prevent wrinkles from being generated on the reflection plate that is disposed under the light guide plate and reflects light output from the light guide plate, so that the brightness of the reflected light is always constant. Generally, there are various reasons for wrinkles on the reflector. For example, when the reflector itself is defective or the assembling process fails, wrinkles may occur on the reflector plate. If the area of the reflector plate is larger than the area of the display device on which the reflector plate is mounted Lt; / RTI > Such wrinkles can be detected by the operator during the assembling process of the display device.

However, when an impact is applied to the manufactured display device after the assembling process of the display device is finished and wrinkles occur on the reflection plate, the operator can not confirm such wrinkles. Therefore, Was shipped as a product and became a problem.

In the present invention, wrinkles are prevented from being generated in the reflector due to external impact in the state where the display device is manufactured, not the wrinkles due to the defects of the reflector itself or problems in the assembling process, thereby preventing the defective display device . In particular, in order to prevent wrinkles from occurring in the reflection plate, the present invention does not include a separate structure in the display device, but prevents the reflection plate from wrinkling by changing the structure of the structure originally provided in the display device. Therefore, it is possible to prevent the reflection plate from wrinkling without causing any other side effect such as additional cost or increase in the volume of the display device.

FIG. 1 is an exploded perspective view of a display device according to the present invention, and FIG. 2 is an assembled cross-sectional view. At this time, a liquid crystal display device will be described as an example of a display device.

As shown in FIGS. 1 and 2, the liquid crystal display device includes a liquid crystal panel 110 that realizes an image and a backlight that supplies light to the liquid crystal panel 110.

The liquid crystal panel 110 includes a first substrate 101 on which a plurality of pixels defined by a plurality of gate lines and data lines are provided and pixel electrodes and thin film transistors are disposed on each pixel, A second substrate 103, and a liquid crystal layer (not shown) disposed between the first substrate 101 and the second substrate 103.

In the liquid crystal panel 110 having such a structure, when a signal is externally applied through the thin film transistor arranged on the first substrate 101, a gap between the pixel electrode of the first substrate 101 and the common electrode of the second substrate 103 And controls the refraction direction of the liquid crystal layer disposed between the first polarizer 112 and the second polarizer 114 by controlling the electric field level. In addition, the liquid crystal panel 110 may include a TN mode (Twist Nematic mode) liquid crystal panel in which pixel electrodes are formed on the first substrate 101 and common electrodes are formed on the second substrate 103, (In-Plane Switching mode) liquid crystal panel which is formed parallel to one substrate 101 and applies a transverse electric field substantially parallel to the surface of the first substrate 101 to the liquid crystal layer.

The backlight includes an LED circuit board 151 disposed on the lower side of the liquid crystal panel 10 and having a plurality of LEDs 152 for emitting light, And a liquid crystal panel 110 provided between the liquid crystal panel 110 and the light guide plate 120 and guided from the light guide plate 120 to guide the light emitted from the liquid crystal panel 110 to the liquid crystal panel 110. [ An optical sheet 134 composed of a diffusing sheet and a prism sheet for diffusing and condensing the light supplied to the light guide plate 120 and the light guide plate 120 and the optical sheet 134 and the liquid crystal panel 110 A reflection plate 128 disposed below the light guide plate 120 and reflecting incident light and supplying the reflected light to the liquid crystal panel 110, and a second guide panel 125, The liquid crystal panel 110, the light guide plate 120, the optical sheet 134, the reflection plate 128, and the first and second guide panels 125 and 12 6) are assembled.

A plurality of LEDs 152 are mounted on the LED substrate 151 to supply light to the light guide plate 120 disposed on the side of the light guide plate 120. After the light incident on the light guide plate 120 is totally reflected within the light guide plate 120, ), The light is refracted and supplied to the liquid crystal panel 110. [

The LED 152 may be a monochromatic LED that emits monochromatic light of red, blue, or green, or a white LED that emits white light. It is also possible to apply a quantum dot device that converts blue light into red light and green light.

The light guide plate 120 is for guiding the light input from the LED 152 to the liquid crystal panel 110. The light guide plate 120 is disposed on one side of the light guide plate 120, And is then output to the outside of the light guide plate 120. At this time, the light guide plate 120 is a rectangular parallelepiped. The light guide plate 120 is formed of a material such as polymethyl-methacrylate (PMMA), glass, or polyethylene terephthalate (PET), and an engraved pattern or a relief pattern is formed on the lower surface thereof.

The light incident into the light guide plate 120 through the light incident surface of the light guide plate 120 is reflected by the upper surface and the lower surface of the light guide plate 120 and propagates to a side opposite to the light entrance surface. The light incident on the upper surface of the light guide plate 120 at a critical angle or more with respect to the normal to the upper surface of the light guide plate 120 is totally reflected and propagated from the upper surface of the light guide plate 120 to the inside of the light guide plate 120, And is supplied to the liquid crystal panel 110.

The optical sheet 134 is supplied to the liquid crystal panel 110 by improving the efficiency of light output from the light guide plate 120. The optical sheet 134 includes a diffusion sheet 134a for diffusing light output from the light guide plate 120 and a prism sheet 134a for condensing the light diffused by the diffusion sheet and supplying uniform light to the liquid crystal panel 110. [ (134b, 134c). At this time, the diffusion sheet 134a is provided, but the prism sheets 134b and 134c are provided with two prisms which vertically cross in the x- and y-axis directions to refract light in the x- and y- Thereby improving the straightness. However, the present invention is not limited to this, and it is also possible to apply a composite sheet that simultaneously performs the functions of the prism sheet and the diffusion sheet.

The reflection plate 128 is disposed under the light guide plate 120. The light incident into the light guide plate 120 through the light incident surface of the light guide plate 120 is incident on the upper surface and the lower surface of the light guide plate 120. The light incident on the upper surface of the light guide plate 120 is refracted at the upper surface of the light guide plate 120 and is supplied to the liquid crystal panel 110. The light incident at a critical angle or less is totally reflected from the upper surface of the light guide plate 120, 120). The light incident on the lower surface of the light guide plate 120 is totally reflected by the lower surface of the light guide plate 120 incident at an angle less than the critical value and propagates to the inside of the light guide plate 120, The light is refracted from the lower surface of the light source 120 and output through the lower surface. The light output through the lower surface of the light guide plate 120 is reflected by the reflection plate 128 and then input into the light guide plate 120 again. The reflection plate 128 reflects the light output from the lower surface of the light guide plate 120 to the light guide plate 120 and then supplies the light to the liquid crystal panel 110 so that the light efficiency of the liquid crystal display device .

At this time, the reflection plate 128 is attached and fixed to the lower surface of the second guide panel 126 by the double-sided tape 150.

A light shielding tape 156 is attached to the upper surface of the optical sheet 134 and the first and second guide panels 125 and 126 to prevent light from entering the area between the optical sheet 134 and the first and second guide panels 125 and 126 It prevents leakage. The shielding tape 156 may be adhered to the upper surface of the optical sheet 134 and the adhesive force may be applied to both sides of the shielding tape 156 so that the shielding tape 156 is adhered to the optical sheet 134 134 and the lower surface of the polarizing plate 112. [

The first guide panel 125 and the second guide panel 126 are formed in a rectangular frame shape so that the liquid crystal panel 110 is placed on the upper part to support the edge area of the liquid crystal panel 110, And the LED substrate 151 are arranged. That is, the first guide panel 125 and the second guide panel 126 are combined with the lower cover 140 to assemble the backlight with the liquid crystal panel 110.

The first guide panel 125 and the second guide panel 126 are detachably supported to support the liquid crystal panel 110. The first guide panel 125 and the second guide panel 126 may be separated from each other, Will be described in more detail.

As shown in FIG. 3, the first guide panel 125 has a groove 125a formed therein, and the second guide panel 126 is inserted into the groove 125a. The groove 125a of the first guide panel 125 has substantially the same shape as the second guide panel 126 and the second guide panel 126 is assembled in the groove 125a.

The groove 125a of the first guide panel 125 is formed of a double groove having a step difference and forms an opening through the upper surface and the lower surface of the first guide panel 125. Although the area of the bottom opening of the first guide panel 125 is larger than that of the top opening, the area of the bottom opening of the first guide panel 125 may be smaller than the area of the top opening have.

The first guide panel 125 and the second guide panel 126 can be assembled by inserting the protrusion 126a into the small-sized groove 125a having the stepped portion in the second guide panel 126 . At this time, the position of the projection 126a may be disposed toward the upper surface and the lower surface of the second guide panel 126 according to the shape of the groove 125a of the first guide panel 125.

Any shape can be used as long as the shapes of the first guide panel 125 and the second guide panel 126 can be smoothly assembled.

3, the protrusion 126a of the second guide panel 126 is exposed to the outside through the upper surface opening of the groove 125a of the first guide panel 125. As shown in FIG. The surface of the exposed protrusion 126a is maintained at the same level as the upper surface of the first guide panel 125 so that the shielding tape 156 is held between the upper surface of the protrusion 126a of the second guide panel 126 and the upper surface of the first guide panel 125. [ And is disposed on a part of the upper surface of the panel 125.

A double-sided tape 150 is disposed on the lower surface of the second guide panel 126 and a reflection plate 128 disposed below the guide panels 125 and 126 is attached to the lower surface of the second guide panel 126. Since the width b of the double-sided tape 150 is equal to or smaller than the width a of the second guide panel 126 (a≥b), the double-sided tape 150 is separated from the second guide panel 126 And is not attached to the lower surface of the first guide panel 125. [ Therefore, since the reflection plate 128 is attached only to the lower surface of the second guide panel 126 and is not attached to the lower surface of the first guide panel 125, the reflection plate 128 is restricted to the movement of the second guide panel 126 However, it is not constrained to the movement of the first guide panel 125.

On the other hand, the first guide panel 125 and the second guide panel 126 are assembled in a state of being entirely spaced apart from each other. That is, although the groove 125a of the first guide panel 125 is formed in the same shape as the second guide panel 126, the size of the groove 125a is set larger than that of the second guide panel 126, When the first guide panel 125 and the second guide panel 126 are assembled with each other, there is a certain distance between the inner surface of the first guide panel 125 (i.e., the surface forming the groove) and the outer surface of the second guide panel 126 The spacing is maintained.

As described above, in the present invention, the first guide panel 125 and the second guide panel 126 are configured to be detachable, and a predetermined gap is provided between the assembled first guide panel 125 and the second guide panel 126 The reason for keeping such a constant interval will be explained in more detail.

FIG. 4 is a partially enlarged view showing a structure of a liquid crystal display device having a general guide panel made up of one integrated structure rather than two detachable components.

4, the lower surface of the guide panel 225 is adhered to the reflection plate 228 through the double-sided tape 250 in the case of a liquid crystal display device having a general guide panel 225 integrated therewith. A light shielding tape 256 is attached to the upper surface of the guide panel 225 and the upper surface of the light guide plate 220.

In other words, in the case of a liquid crystal display device having an integrated general guide panel 225, the guide panel 225 is constrained by the adhesive force of the double-sided tape 250 on the bottom surface and the light- Therefore, when an external force such as an impact is applied from the outside, the guide panel 225 is caused to flow by an external force. Since the guide panel 225 is bonded to the reflection plate 228 through the double-sided tape 250, when the guide panel 225 flows (in particular, when the guide panel 225 moves toward the light guide plate 220) A force is transmitted to the reflection plate 228 so that the reflection plate 228 moves in the same direction and the movement of the reflection plate 228 is performed by applying a stress to the reflection plate 228 Causing the reflection plate 228 to be wrinkled.

The corrugations generated in the reflection plate 228 cause uneven reflection of light incident through the lower surface of the light guide plate 220. This nonuniform reflection causes uneven brightness of light supplied to the liquid crystal panel, This is a major cause of image degradation.

A light shielding tape 256 is attached to the upper surface of the integrated guide panel 225 and the light shielding tape 256 is also attached to the upper surface of the optical sheet 234. [ Therefore, the guide panel 225 and the optical sheet 234 are constrained to each other by the shielding tape 256. The optical sheet 234 constrained by the light shielding tape 256 also flows like the guide panel 225 when an external force such as an impact is applied from the outside and the guide panel 225 flows. The flow of the optical sheet 234 causes a stress to be applied to the optical sheet 234 to generate a wrinkle on the optical sheet 234 and is output from the light guide plate 220 to the liquid crystal panel 234 The luminance of the supplied light becomes uneven and the image quality of the liquid crystal display device is deteriorated.

When the guide panel 225 is integrally formed as described above, when the guide panel 225 is moved by the external force, the reflection plate 228 disposed below the guide panel 225 and the optical sheet 234 And the wrinkles are generated in the reflection plate 228 and the optical sheet 234, respectively. Such wrinkles cause the quality of the liquid crystal display to deteriorate.

In the present invention, the first guide panel 125 and the second guide panel 126, which are detachable from the guide panel, can prevent the reflection plate 128 and the optical sheet 134 from being wrinkled. To explain this.

5A and 5B are views showing a first guide panel 125 and a second guide panel 126 when an external impact is applied in the liquid crystal display device according to the present invention.

5A, in the liquid crystal display device of the present invention, the guide panel is composed of a first guide panel 125 and a second guide panel 126 which are detachable, and the first guide panel 125 and the second guide panel 125 The guide panel 126 is assembled. At this time, the first guide panel 125 and the second guide panel 126 are assembled so as to maintain a constant distance x1 between the first guide panel 125 and the second guide panel 126.

When an external force such as an impact acts on the liquid crystal display device having such a structure, the first guide panel 125 is moved by impact as shown in FIG. 5B. However, since the second guide panel 126 is not integrally formed with the first guide panel 125 but is disposed at a predetermined interval, only the first guide panel 125 moves due to the impact, and the second guide panel 126 ) Will not flow.

The first guide panel 125 is moved by a certain distance toward the light guide plate 120 and the light guide plate 125 is moved by a predetermined distance as the first guide panel 125 flows and the second guide panel 126 does not flow, The distance between the first guide panel 125 and the second guide panel 126 increases from x1 to x2 (x2 > x1) in the direction toward the outer side of the display device (in the direction opposite to the light guide plate side) The distance between the first guide panel 125 and the second guide panel 126 is reduced.

Of course, if the impact applied to the liquid crystal display device is large, the flow distance of the first guide panel 125 becomes larger than the gap x1 between the first guide panel 125 and the second guide panel 126 The first guide panel 125 and the second guide panel 126 collide with each other and consequently the second guide panel 126 also flows. However, since the impact of this degree of intensity does not simply cause the flow of the first guide panel 125 and the second guide panel 126 but causes the liquid crystal display itself to be broken, the first guide panel 125 and the second guide panel 126 Defects of the liquid crystal display device can not be prevented even if the interval between the panels 126 is increased. Therefore, when the intensity of the impact applied to the liquid crystal display device is greater than the set intensity, the setting of the interval between the first guide panel 125 and the second guide panel 126 is meaningless.

In view of this, in the present invention, the interval x1 between the first guide panel 125 and the second guide panel 126 is set such that when an impact of an intensity lower than the critical intensity at which the liquid crystal display device itself is broken is applied, It is preferable to set the range larger than the flow range of the first guide panel 125 due to the impact.

5B, since the reflection plate 128 is attached to the lower surface of the second guide panel 126 and is not attached to the lower surface of the first guide panel 125, the first guide panel 125 No force is applied to the reflection plate 128 even when it flows. Therefore, it is possible to prevent the reflection plate 128 from being wrinkled by the stress due to the external impact.

A shielding tape 156 is attached to the upper surfaces of the first guide panel 125 and the second guide panel 126. The light shielding tape 156 extends from the first guide panel 125 and the second guide panel 126 to the upper surface of the optical sheet 134 to define an area between the second guide panel 126 and the optical sheet 134 Thereby blocking light from leaking through this region.

Particularly, in the present invention, the light shielding tape 156 includes a first area 156a disposed on the upper surfaces of the first guide panel 125 and the second guide panel 126, and a second area 156a disposed on the upper surface of the optical sheet 134. [ (156b). Generally, the shielding tape 156 is primarily intended to shield light, but is adhered to a desired object by being adhered to one surface thereof and fixed. The present invention does not apply such an adhesive force to the entire area of the first area 156a and the second area 156b of the light shielding tape 156 but only to the second area 156b so that the second area 156c of the light shielding tape 156 156b are attached to the upper surface of the optical sheet 134 so that the first area 156a is not attached to the upper surfaces of the first guide panel 125 and the second guide panel 126. [

Even if the first area 156a of the light-shielding tape 156 is not attached to the upper surfaces of the first guide panel 125 and the second guide panel 126 as described above, the second area 156b may be formed on the optical sheet 134 The shielding tape 156 is always fixed at the set position.

The light shielding tape 156 is formed by applying an adhesive layer on a transparent film such as PET (Polyethylene Terephthalate). In the present invention, an adhesive layer is applied only to the second area 156b to give an adhesive force only to the second area 156b.

5B, when a shock is applied to the liquid crystal display device from the outside, since the first guide panel 125 flows but the light shielding tape 156 is not attached to the upper surface of the first guide panel 125, The first guide panel 125 and the shielding tape 156 do not flow through the first guide panel 125 and the first guide panel 125 and the shielding tape 156 slide relative to each other while being in contact with each other. Therefore, in the present invention, since the force due to the flow in the first guide panel 125 is not applied to the optical sheet 134, it is possible to prevent the optical sheet 134 from being wrinkled.

As described above, in the present invention, the first guide panel 125 and the second guide panel 126 are separated from each other by a predetermined distance and the double-sided tape 150 is provided only on the lower surface of the second guide panel 126 It is possible to prevent the reflection plate 128 from being wrinkled even when the first guide panel 125 flows due to an external force. The adhesive force of the first area 156a of the light shielding tape 156 disposed on the upper surfaces of the first guide panel 125 and the second guide panel 126 is removed so that the first guide panel 125 It is possible to prevent wrinkles from occurring in the optical sheet 134 even when the optical sheet 134 flows.

Accordingly, it is possible to prevent the occurrence of defects such as stains due to the luminance difference on the screen due to the uneven brightness of light supplied to the liquid crystal panel by the corrugations of the reflection plate 128 and the optical sheet 134.

The first guide panel 125 and the second guide panel 126 may be variously assembled and detachable by various methods. A groove 125a is formed in each of the corner areas of the first guide panel 125 and a second guide panel 126 is inserted and assembled into the groove 125a. At this time, the reflection plate 128 is attached and fixed only on the lower surface of the second guide panel 126. That is, the reflector 128 is attached and fixed to only the four corners of the assembled guide panels 125 and 126.

Of course, grooves 125a may be formed only in a corner area of the first guide panel 125 according to the shape, size, or use of the liquid crystal display device, and the second guide panel 126 may be provided corresponding thereto.

7 is a view showing another structure of the guide panel according to the present invention. 7, grooves 325a are formed at four sides of the first guide panel 325 having a rectangular frame shape and the second guide panel 326 is formed into four bar shapes, The first guide panel 325 and the second guide panel 326 can be separated from each other by inserting the second guide panel 326 into the groove 325a formed at the four sides of the first guide panel 325. [ Even in this case, since the assembled first guide panel 325 and the second guide panel 326 are not in contact with each other but spaced apart by a certain distance, even when an impact is applied from the outside, only the first guide panel 325 flows The second guide panel 326 does not flow.

Therefore, since the reflection plate is attached only to the lower surface of the second guide panel 326 by the double-sided tape and is not attached to the first guide panel 325, wrinkles are generated in the reflection plate due to the flow of the first guide panel 325 .

The length of the second guide panel 326 is substantially similar to the length of the sides of the first guide panel 325 but the length of the second guide panel 326 is smaller than the length of the sides of the first guide panel 325 And can be assembled at a specific position on one side of the first guide panel 325. The length of the second guide panel 326 may be less than half the length of the first guide panel 325 and a plurality of second guide panels 326 may be inserted into one side of the first guide panel 325 It can also be assembled.

8 is a view showing another structure of the guide panel according to the present invention. As shown in Fig. 8, in this structure, the guide panel is composed of a first guide panel 425a in the transverse direction and a second guide panel 425b in the longitudinal direction. That is, in this structure, the guide panel 425 is configured to be detachable, but the guide panel is formed into four bars instead of the grooves formed in the first guide panel and the second guide panel inserted in the grooves. At this time, the first guide panel 425a and the second guide panel 425b are disposed adjacent to each other to form four sides of a rectangular shape, but the first guide panel 425a and the second guide panel 425b are separated from each other . That is, as shown in the figure, the first guide panel 425a and the second guide panel 425b are disposed at a constant distance d.

A double-sided tape 450 is disposed under each of the two first guide panels 425a so that a reflection plate (not shown) is attached and fixed to the lower surface of the first guide panel 425a, The double-sided tape 450 is not disposed under the lower surface 425b.

 The guide panels 425a and 425b of this structure can be applied to a display device to which impact is applied only in one direction. As shown in the drawing, when an external impact is applied in the vertical direction of the second guide panel 425b, since an external impact is mainly applied to the second guide panel 425b, the second guide panel 425b, . However, the reflection plate (not shown) is attached only to the lower surface of the first guide panel 425a and is not attached to the lower surface of the second guide panel 425b. Therefore, even if the second guide panel 425b flows, no force is applied to the reflection plate, so that it is possible to prevent the reflection plate from being wrinkled due to the impact applied to the liquid crystal display device.

As described above, in the present invention, when the external force is applied to the display device due to a shock or the like by configuring the guide panel to be detachable, the flow caused by the external force is limited to the specific guide panel, , It is possible to prevent the reflection plate from being wrinkled.

While the present invention has been described in detail in the above detailed description, the present invention is not limited to this specific structure. The present invention can be applied to a liquid crystal display device of any structure including such a structure because the guide panel is configured to be detachable at a set interval. For example, in the above detailed description and drawings, the lower cover is provided and the guide panel is assembled with the lower cover, but the lower cover may not be provided.

Accordingly, the scope of the rights of the present invention should not be determined by the foregoing detailed description, but should be determined by the accompanying detailed description.

110: liquid crystal panel 120: light guide plate
125: first guide panel 126: second guide panel
128: reflector 150: double-sided tape
151: LED substrate 152: LED
156: Shading tape

Claims (10)

A liquid crystal panel;
A light source for supplying light to the liquid crystal panel;
A light guide plate guiding light incident from the light source;
A first guide panel and a second guide panel assembled with the light guide plate and the liquid crystal panel and configured to be detachable from each other;
A reflection plate disposed under the light guide plate;
And a first tape disposed below the second guide panel and attaching a reflection plate to a lower portion of the second guide panel. The display device according to claim 1, wherein the first guide panel and the second guide panel are assembled at a predetermined interval. The display device according to claim 1, wherein the first guide panel is provided with a groove and the second guide panel is inserted into the groove. The display device according to claim 3, wherein the second guide panel is provided at an edge area or side of the first guide panel. The display device according to claim 1, wherein the first guide panel and the second guide panel each have a bar shape that forms a rectangular frame shape. The method according to claim 1,
An optical sheet disposed on the light guide plate; And
And a second tape disposed above the optical sheet and the first guide panel and the second guide panel to block an area between the optical sheet and the first guide panel and the second guide panel. 7. The method of claim 6,
A first region disposed on the first guide panel and the second guide panel and having no adhesive force; And
And a second region disposed on the optical sheet and attached to the optical sheet. A liquid crystal panel;
A light source for supplying light to the liquid crystal panel;
A light guide plate guiding light incident from the light source;
A guide panel for assembling the light guide plate and the liquid crystal panel; And
And a reflector disposed under the light guide plate,
Wherein the guide panel is detachably configured to absorb an impact applied from the outside to prevent an impact from being transmitted to the reflector. 9. The apparatus according to claim 8,
A first guide panel that flows according to an external impact; And
And a fixed second guide panel. The display device according to claim 9, further comprising a tape for attaching the reflection plate to the second guide panel.

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