KR102376312B1 - Liquid crystal display device - Google Patents

Abstract

The present invention is a liquid crystal display comprising a guide panel for supporting a backlight unit and a liquid crystal panel, a case top fastened to the guide panel in a state that surrounds the outer periphery of the front surface of the liquid crystal panel, and a protective pad surrounding an edge of the case top provide the device.

Description

Liquid crystal display device {LIQUID CRYSTAL DISPLAY DEVICE}

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device for preventing an edge of a bezel portion of a case top from being exposed in a liquid crystal module.

Flat panel displays (FPDs) are used in various types of electronic products, including mobile phones, tablet PCs, and notebook computers. Flat panel displays include liquid crystal displays, plasma display panels (PDPs), organic light emitting displays (OLEDs), and more recently, electrophoretic displays (EPDs). ElectroPhoretic Display) is also widely used.

Among the flat panel display devices, the liquid crystal display device is currently the most widely commercialized due to the advantages of mass production technology, ease of driving means, and realization of high quality.

Since the liquid crystal display is not a self-luminous device, a backlight unit is provided under the panel to display an image using light emitted from the backlight unit.

1 is an exemplary view showing a cross-section of a liquid crystal display according to the prior art.

FIG. 2 is an exemplary view showing poor visibility in a case top of a liquid crystal display according to the prior art.

3A is a view schematically illustrating a photograph in which an edge portion of a bezel portion of a case top of a liquid crystal display according to the prior art is exposed, and FIG. 3B is a twinkling phenomenon at the edge of a bezel portion of a case top of a liquid crystal display according to the prior art. It is a diagram schematically showing the picture that appears.

A conventional liquid crystal display device includes a lower substrate, an upper substrate, and a liquid crystal layer formed between the lower substrate and the upper substrate. In the liquid crystal display device, the arrangement of the liquid crystal layers is adjusted depending on whether or not an electric field is applied, and the transmittance of light is adjusted accordingly, and an image is displayed.

Depending on the method of controlling the arrangement of the liquid crystal layers, the liquid crystal display device has TN (Twisted Nematic) mode, VA (Vertical Alignment) mode, IPS (In Plane Switching) mode, AH-IPS (Advanced Horizontal In-Plane Switching) mode, FFS (Fringe Field Switching) mode, etc. may be classified.

As shown in FIG. 1, a conventional liquid crystal display device includes an upper substrate 1 and a lower substrate 2, and liquid crystal (not shown) filled therebetween, and a liquid crystal panel 1 for outputting an image. ), a backlight unit 10 disposed under the liquid crystal panel 1, a case top 70 supporting the backlight unit 10 and the liquid crystal panel 1, and the case top 70 A cover glass 90 laminated on the front periphery of a, a first adhesive tape 82 interposed between the liquid crystal panel 1 and the case top 70, and the case top 70 and the cover glass 90 and a second adhesive tape 84 interposed therebetween.

Here, the liquid crystal panel 1 is a part that plays a key role in image expression and is composed of an upper substrate 2 and a lower substrate 3 that are bonded face to face with a liquid crystal interposed therebetween.

An upper polarizing film 4 and a lower polarizing film 5 that selectively transmit only a specific light are attached to the outside of each of the upper substrate 2 and the lower substrate 3 .

The backlight unit 10 includes a cover bottom 20 , a light guide plate 40 disposed on the cover bottom 20 , and a side surface of the light guide plate 40 on the cover bottom 20 , The optical sheet part 50 is composed of a light source array 60 for injecting light to the side of the light guide plate 40 and a plurality of optical films and is disposed between the light guide plate 40 and the liquid crystal panel 1 . includes

A reflecting plate (not shown) is laminated on the lowermost end inside the guide panel 30 , the light guide plate 40 and the optical sheet unit 50 are laminated on the reflecting plate, and a panel support part (not shown) of the guide panel 30 . City) on the liquid crystal panel (1) is laminated.

In addition, the case top 70 is disposed outside the guide panel 30 and is coupled to the guide panel 30 .

As described above, in the liquid crystal display according to the prior art, the first adhesive tape is interposed between the liquid crystal panel and the case top to prevent moisture and foreign substances from flowing into the liquid crystal display.

Then, a second adhesive tape is attached between the case top and the cover glass to fix the cover glass.

However, in the conventional structure of the liquid crystal display device, as in FIGS. 2 and 3A , a defect occurs in that the edge portion 82a of the bezel portion of the case top is exposed at the viewing angle, so that the edge portion 82a of the bezel portion of the case top is not visible. can

And, as shown in FIG. 3B , when the exposed edge part 82a of the bezel part is not smooth, the light emitted from the liquid crystal display device only from that part is more popped, causing a sparkling phenomenon.

In particular, exposure of the bezel of the case top can be minimized by adjusting the black matrix area of the cover glass, adjusting the size of the bezel of the front cover, or reducing the bezel of the case top, but due to the nature of automotive products, CID (Center Information Display, e.g., For example, since navigation is viewed from the driver's seat and the passenger seat at a viewing angle, a defect in which the bezel of the case top is visually recognized occurs.

In addition, in the punching process of the bezel opening area during case top manufacturing, the fractured surface of the product is finely cut due to micro-interference friction between the product and the mold, or the chamfer is not applied properly. If there is a burr, only that part is particularly shiny.

Furthermore, during handling, for example, packaging, and transport after the case top is manufactured, the fractured surface of the product is finely cut due to interference friction between the bezel parts of the case top, resulting in a phenomenon of splashing light.

An object of the present invention is to prevent exposure of the edge of the bezel of the case top by attaching a protective pad surrounding the edge of the case top between the case top and the cover glass so that light emitted from the liquid crystal display is reflected on the edge of the case top. It is to provide a liquid crystal display device capable of improving the light splashing phenomenon.

In order to solve the above technical problem, in one aspect, the present invention provides a guide panel for supporting a backlight unit and a liquid crystal panel, and a case top fastened to the guide panel in a state that surrounds the outer periphery of the front surface of the liquid crystal panel; Provided is a liquid crystal display including a protective pad surrounding an edge of a case top.

In the liquid crystal display according to the present invention, the protective pad may be configured to cover the upper surface, the side surface, and the lower surface of the front part of the case top.

In the liquid crystal display device according to the present invention, the protective pad includes an upper surface portion surrounding the outer periphery of the front portion of the case top, a bent portion bent from one side of the upper surface portion to surround an edge portion of the case top, and the bent portion It may include a lower surface portion extending from the portion facing the upper surface portion and surrounding the lower surface of the front portion of the case top.

In the liquid crystal display according to the present invention, the protective pad may be interposed between the cover glass and the upper surface of the liquid crystal panel.

In the liquid crystal display according to the present invention, an adhesive portion may be provided on the upper surface of the protective pad.

In the liquid crystal display according to the present invention, the protective pad may be formed of an opaque silicone material, a tape, or a desiccant material.

The present invention prevents exposure of the edge of the bezel of the case top by attaching a protective pad surrounding the edge of the case top between the case top and the cover glass, so that light emitted from the liquid crystal display is reflected on the edge of the case top. This splashing phenomenon can be improved. In particular, since the 'C'-shaped protective pad surrounds the edge of the bezel part of the case top, it is possible to prevent the bezel part of the case top from being exposed.

And, according to the present invention, by attaching a 'C'-shaped protective pad between the cover glass and the case top and between the case top and the liquid crystal panel, it is possible to improve the IPS light leakage defect caused by the interference of the case top, Through the gap between the case top and the liquid crystal panel, it is possible to improve the case top light leakage defect.

Furthermore, the present invention prevents the user from seeing the protective pad when the screen of the liquid crystal display is driven by applying the protective pad with an opaque silicon material.

On the other hand, in the present invention, the protective pad wraps around the edge of the bezel part of the case top to prevent exposure of the bezel part of the case top, so that the light emitted from the liquid crystal display is reflected on the edge of the bezel part of the case top and the light splashing phenomenon is also improved. do.

According to the present invention, a 'C'-shaped protective pad is attached between the case top and the cover glass, and between the case top and the liquid crystal panel, thereby preventing moisture and foreign substances from flowing into the liquid crystal panel from the outside. In particular, the 'C'-shaped protective pad fills the gap between the case top and the liquid crystal panel, thereby preventing moisture or foreign substances from entering the liquid crystal display device.

1 is an exemplary view showing a cross-section of a liquid crystal display according to the prior art.
2 is an exemplary view showing a defect in the edge portion of the case top of the liquid crystal display according to the prior art.
3A is a view schematically illustrating a photograph in which an edge of a bezel part of a case top of a liquid crystal display according to the prior art is exposed, and FIG. 3B is a twinkling phenomenon at the edge of a bezel part of a case top of a liquid crystal display according to the prior art. It is a diagram schematically showing the picture that appears.
4 is an exploded perspective view illustrating a liquid crystal display device according to the present invention.
5 is an exemplary view showing a plane of a liquid crystal display device according to the present invention.
6 is a cross-sectional view of the liquid crystal display shown in FIG. 5 taken in a direction VI-VI.
7 is an exemplary view showing a plane of a protection pad applied to a liquid crystal display according to the present invention.
8 is a cross-sectional view taken in a direction VIII-VIII shown in FIG. 7 .
9 is an exemplary view showing a plane of a protection pad applied to a liquid crystal display according to the present invention.
10 is a cross-sectional view showing the combination of the protective pad and the case top cut in the X-X direction shown in FIG. 7 .
11 is an exemplary view illustrating a cross-section of a liquid crystal display device according to the present invention, and is an exemplary view for explaining an exposure prevention phenomenon of a case top.
12 is a plan view illustrating another embodiment of a protection pad fitted to a case top of a liquid crystal display device according to the present invention.
13 is a plan view showing the protective pads fitted to the case top of the liquid crystal display according to the present invention.

Hereinafter, a preferred embodiment of a liquid crystal display device according to the present invention will be described in detail with reference to the accompanying drawings.

4 is an exploded perspective view illustrating a liquid crystal display device according to the present invention.

5 is an exemplary view showing a plane of a liquid crystal display device according to the present invention.

6 is a cross-sectional view of the liquid crystal display shown in FIG. 5 taken in a direction VI-VI.

The present invention relates to a liquid crystal display device equipped with a panel configured in IPS mode, and an object of the present invention is to attach a 'C'-shaped protective pad between a case top and a cover glass, so that the edge of the bezel part of the case top is This is to improve the phenomenon in which light emitted from the liquid crystal display is reflected on the edge of the case top by preventing exposure and causing the light to bounce.

To this end, the liquid crystal display according to the present invention includes a liquid crystal panel filled between an upper substrate and a lower substrate, and a liquid crystal panel 100 for outputting an image, as shown in FIGS. 4 to 6 ; A backlight unit 110 disposed on the bottom surface of the liquid crystal panel 100 for irradiating light perpendicular to the bottom surface, and a guide panel 130 supporting the backlight unit 110 and the liquid crystal panel 100 . and a case top 170 that surrounds the front surface of the liquid crystal panel 100 and is fastened to the guide panel 130, and is fitted on the outside of the upper surface of the case top 170 and surrounds the edge portion 173 It includes a protective pad 180 to be attached.

Here, the backlight unit 110 includes a cover bottom 120 , a light guide plate 140 disposed on the cover bottom 120 , and a side surface of the light guide plate 140 on the cover bottom 120 . An optical sheet part ( 150) and a reflecting plate 154 disposed between the light guide plate 140 and the cover bottom 120 to reflect the light traveling toward the lower end of the light guide plate 140 to the upper end of the light guide plate 140 .

A reflecting plate 154 is stacked on the lowermost end inside the guide panel 130 , the light guide plate 140 and the optical sheet part 150 are stacked on the reflecting plate 154 , and a panel support part of the guide panel 130 . The liquid crystal panel 100 is stacked on the 134 .

In addition, the case top 170 is disposed outside the guide panel 130 and is coupled to the guide panel 130 .

In particular, the liquid crystal display according to the present invention shown in FIGS. 4 and 6 is a photometric liquid crystal display, and the light source array 160 is mounted on one side of the inside of the guide panel 130 .

That is, the light source array 160 includes at least one of the four side surfaces excluding the plane and the bottom surface of the light guide plate 140 adjacent to the optical sheet unit 150 and the reflection plate 154, and a guide panel. It is mounted between the sides of 130.

In this case, the light source array 160 is substantially surrounded by the cover bottom 120 seated on the guide panel 130 .

However, the present invention is not applied only to the photometric liquid crystal display device. That is, the present invention can also be applied to a direct light type liquid crystal display in which a plurality of light source arrays 160 are formed between the rear surface of the liquid crystal panel 100 and the inner surface of the guide panel 130 . Also, the present invention is not applied only to a photometric liquid crystal display having a structure as shown in FIGS. 4 and 6 . That is, the present invention can be applied to a photometric liquid crystal display device and a direct light type liquid crystal display device having various structures. However, hereinafter, for convenience of explanation, the present invention will be described by taking the photometric liquid crystal display device as shown in FIGS. 4 and 6 as an example.

Meanwhile, the liquid crystal panel 100 includes pixels formed in regions defined by intersections of gate lines and data lines formed in a display region, and a thin film transistor (TFT) is formed in each of the pixels.

The thin film transistor TFT supplies the data voltage supplied from the data line to the pixel electrode in response to the scan signal supplied from the gate line. The transmittance of light is adjusted by driving the liquid crystal positioned between the pixel electrode and the common electrode in response to the data voltage.

As shown in FIG. 6 , the display area is an area not covered by the case top 170 , and is an area in which pixels defined by intersections of the gate lines and the data lines are formed.

The non-display area is a portion covered by the case top 170 in FIG. 6 , and the pixels are not formed in the non-display area, and even though the pixels are formed in the non-display area, the non-display area Light emitted from pixels formed in the non-display area cannot be input to the user's eyes by the case top 170 and the protective pad 180 .

Meanwhile, in the following, the outside of the liquid crystal panel 100 refers to the non-display area. That is, the outer or non-display area of the liquid crystal panel 100 is an outer portion of the display area formed in a quadrangular shape as shown in FIG. 6 , and the liquid crystal panel 100 has four outer or four outer areas. Non-display areas are formed.

And, the liquid crystal panel 100 is driven in the IPS mode. In the liquid crystal panel 100 configured in the IPS mode, a pixel electrode and a common electrode are disposed on the lower substrate 102 constituting the liquid crystal panel 100 . The arrangement of the liquid crystal is controlled by the transverse electric field between the pixel electrode and the common electrode.

That is, in the liquid crystal panel 100 configured in the IPS mode, pixel electrodes and common electrodes are alternately arranged in parallel to the lower substrate 102 , and by the lateral electric field generated between the pixel electrodes and the common electrode, The arrangement of the liquid crystal is adjusted.

Also, the liquid crystal panel 100 may be driven in an AH-IPS mode (or FFS mode). The AH-IPS (or FFS mode) mode is one of the IPS modes. In the liquid crystal panel 100 driven in the AH-IPS mode, the pixel electrode and the common electrode are formed on the lower substrate 102 as an insulating layer. is formed to be spaced apart from each other.

That is, the liquid crystal panel 100 applied to the present invention may be driven in the IPS mode, the AH-IPS mode, or the FFS mode.

On the other hand, as shown in FIG. 6 , the liquid crystal panel 100 is composed of an upper substrate 101 and a lower substrate 102 , and a liquid crystal filled between the upper substrate 101 and the lower substrate 102 . An upper polarizing film 103 and a lower polarizing film 104 are attached to each of the upper surface of the upper substrate 101 and the lower surface of the lower substrate 102 .

That is, the upper and lower polarizing films 103 and 104 are attached to the front or rear surface of the liquid crystal panel 100 , and are components of the light transmitted through the light guide plate 140 in a specific direction. It performs the function of passing only

The case top 170 is fastened to the guide panel 130 , and as described above, the liquid crystal panel 100 and the above-described components are the case top 170 and the guide panel 130 . placed between

The case top 170 surrounds the front periphery of the liquid crystal panel 100 , and the light emitted from the liquid crystal panel 100 through the open central portion of the case top 170 is output to the outside.

As shown in FIGS. 4, 5, and 6, the case top 170 includes a front portion 171 surrounding the front surface of the liquid crystal panel 100, and the guide panel bent from one side of the front portion. It includes a side portion 172 surrounding the side of the 130 . In addition, a finely chamfered edge portion 173 is provided at the end of the front portion 171 of the case top 170 .

7 is an exemplary view showing a plane of a protection pad applied to a liquid crystal display device according to the present invention.

8 is a cross-sectional view taken in a direction VIII-VIII shown in FIG. 7 .

And, as shown in FIGS. 7 and 8 , the protection pad 180 fitted to the case top 170 has a 'C' shape, and surrounds the front portion 171 of the case top 170 . The upper surface portion 180a, the bent portion 180b bent from one side of the upper surface portion 180a to surround the edge portion 173 of the case top 170, and the bent portion 180b extending from the It faces the upper surface portion 180a and includes a lower surface portion 180c surrounding the bottom surface of the front portion 171 of the case top 170, and these are integrally formed.

9 is an exemplary view showing a plane of a protection pad applied to a liquid crystal display according to the present invention.

10 is a cross-sectional view showing the combination of the protective pad and the case top cut in the X-X direction shown in FIG. 7 .

11 is an exemplary view illustrating a cross-section of a liquid crystal display according to the present invention, and is an exemplary view for explaining an exposure prevention phenomenon of a case top.

9 and 10 , the upper surface portion 180a of the protective pad 180 surrounds the entire outer periphery of the front portion of the case top 170 , and the width thereof is greater than the width of the lower surface portion 180c. long formed. In particular, the thickness of the upper surface portion 180a of the protective pad 180 is the same as that of the conventional double-sided tape 84 shown in FIGS. 1 and 2 , and the thickness of the lower surface portion 180c of the protective pad 180 is Since the thickness has the same thickness as that of the existing double-sided tape 82, there is no influence on the overall thickness of the liquid crystal display device.

The upper surface portion 180a of the protective pad 180 surrounds the outside of the front portion 171 of the case top 170 , and a cover glass 190 is laminated thereon. That is, the upper surface portion 180a of the protective pad 180 is disposed between the cover glass 190 and the case top 170 .

In addition, the lower surface portion 180b of the protective pad 180 is disposed so as to be in contact with the outer front surface of the liquid crystal panel 100 . That is, the lower surface portion 180b of the protective pad 180 is in contact with the upper polarizing film 103 located outside the front surface of the liquid crystal panel 100 . That is, the lower surface 180c of the protective pad 180 is disposed so as to be in contact with the outer front surface of the liquid crystal panel 100 and fills a gap between the case top 170 and the liquid crystal panel 100, thereby reducing moisture and It is possible to prevent the ingress of foreign substances.

The protective pad 180 can be used as long as it can implement such a protective pad shape, that is, a 'C' shape, among all materials including silicon, tape, and a desiccant material. And, by applying a black color release protection pad, the user does not recognize the protection pad when the screen is driven.

In this way, as shown in FIG. 11 , the bent portion 180b of the 'C'-shaped protective pad 180 surrounds the edge portion 173 of the bezel portion of the case top 170, so that the case top 170 ) is prevented from exposing the edge 173 of the bezel part.

In addition, when the screen is driven when the black silicone material is applied to the protection pad 180 , the user does not recognize the protection pad 180 . Accordingly, exposure of the edge portion 173 of the bezel portion of the case top 170 is prevented, and the phenomenon in which light emitted from the liquid crystal display is reflected by the edge portion 173 of the case top 170 and bounces is also improved.

Furthermore, an adhesive treatment, for example, a double-sided tape or an adhesive, may be provided on the surface of the upper surface portion 180a of the protective pad 180 to attach a cover glass 190 .

And, as shown in FIG. 6 , the cover glass 190 has a BM area 193 at the outer portion of the cover glass, and the width of the BM area 193 is that of the case top 170 below the cover glass 190 . It is configured to be equal to or smaller than the width of the front part 172 .

Meanwhile, the backlight unit 110 is disposed on the inner surface of the guide panel 130 to output light in a direction perpendicular to the bottom surface of the liquid crystal panel 100 , and as described above, the It may include a cover bottom 120 , the reflection plate 154 , the light guide plate 140 , and the optical sheet unit 150 .

In particular, the cover bottom 120 serves to guide the light guide plate 140 and support the liquid crystal panel 100 .

And, since the cover bottom 120 is formed in a rectangular frame as shown in FIG. 6 , the reflecting plate 121 , the light guide plate 120 and the The optical sheet unit 130 may be guided by the cover bottom 120 and fixed at a predetermined position.

A light source array 160 may be inserted and fixed to one side of the cover bottom 110 .

The light guide plate 140 scatters and reflects the light emitted from the light source array 160 and transmits it to the liquid crystal panel 100 disposed on the light guide plate. The light guide plate 140 may be formed of a material such as plastic such as polymethylacrylate (PMMA) or resin.

In addition, the reflection plate 154 is attached to the bottom surface of the light guide plate 140 or is disposed in close contact with the bottom surface of the light guide plate 140 . In particular, the reflective plate 154 is disposed on the bottom surface of the light guide plate 140 , that is, at the lowermost end inside the guide panel 130 , is emitted from the light source array 160 , and travels toward the lower end of the light guide plate 140 . to the liquid crystal panel 100 disposed on the upper end of the light guide plate 140 .

That is, the light emitted from the light source array 160 and introduced into the light guide plate 140 is refracted by a pattern formed on the light guide plate 140 and reflected in the panel direction, but is not reflected and is not reflected. There may also be light leaking out through the bottom of the reflective plate 154, and the reflector 154 reflects the light again and guides it toward the panel.

In addition, the light source array 160 is intended to be incident on the liquid crystal panel 100 through the light guide plate 140 , and may include a light source for outputting light and a substrate for supporting the light source. A light emitting diode (LED) may be applied as the light source.

Meanwhile, the light source array 160 may include various types of lamps in addition to light emitting diodes (LEDs).

The optical sheet unit 150 is for diffusing the light passing through the light guide plate 140 or allowing the light passing through the light guide plate 140 to be vertically incident on the liquid crystal panel 100, It may be formed in various ways, including a diffusion sheet (diffuser sheet), a prism sheet (prism sheet), and the like.

Meanwhile, in the liquid crystal display according to the present invention having the above configuration, another embodiment of the protective pad will be described with reference to FIGS. 12 and 13 as follows.

12 is a plan view illustrating another embodiment of a protection pad fitted to a case top of a liquid crystal display device according to the present invention.

13 is a plan view showing the protective pads fitted to the case top of the liquid crystal display according to the present invention.

As shown in FIG. 12 , the left and right protection pads 280 and the upper and lower protection pads 281 have the same shape as the protection pad 180 shown in FIGS. 7 and 8 , that is, a 'C' shape. And, like the protective pad 180, the upper surface portion surrounding the front portion of the case top, and bent portions bent from one side of the upper surface portion surrounding the edge portion of the case top (280a, 280b), and the bent portion It extends from (280a, 280b) and faces the upper surface portion and includes a lower surface portion surrounding the lower surface of the front portion of the case top.

However, as different from the protective pad 180 shown in FIGS. 7 and 8 , the width of both edges of the upper surface of the left and right protective pads 280 is narrower than the width of the center of the upper surface. In addition, the upper surfaces of the upper and lower protective pads 281 have the same shape as the protective pad 180 illustrated in FIGS. 7 and 8 , that is, the widths of both edges of the upper surfaces are the same as the width of the center.

This is a phenomenon in which both ends of the bent portions 280b of the left and right protective pads 280 and the ends of the upper and lower protective pads 281 overlap when attaching the protective pads 280 and 281 to the case top. is to prevent That is, since both ends of the upper and lower protective pads 281 are closely coupled to the bent portions 280b on both sides that are narrower than the central side of the left and right protective pads 280, these upper and lower protective pads ( The phenomenon that both ends of the 280) overlap with both ends of the left and right protective pads 280 is prevented.

On the other hand, this case is not limited only to the left and right protective pads 280 , but is also applicable to the upper and lower protective pads 281 . is formed to be smaller than the width of , and the widths of both edges of the upper surfaces of the left and right protective pads are the same as the width of the center side.

As described above, the liquid crystal display device according to the present invention has the following effects.

The present invention prevents exposure of the edge of the bezel of the case top by attaching a protective pad surrounding the edge of the case top between the case top and the cover glass, so that light emitted from the liquid crystal display is reflected on the edge of the case top. This splashing phenomenon can be improved. In particular, since the 'C'-shaped protective pad surrounds the edge of the bezel part of the case top, it is possible to prevent the bezel part of the case top from being exposed.

And, according to the present invention, by attaching a 'C'-shaped protective pad between the cover glass and the case top and between the case top and the liquid crystal panel, it is possible to improve the IPS light leakage defect caused by the interference of the case top, Through the gap between the case top and the liquid crystal panel, it is possible to improve the case top light leakage defect.

Furthermore, the present invention prevents the user from seeing the protective pad when the screen of the liquid crystal display is driven by applying the protective pad with an opaque silicon material.

On the other hand, in the present invention, the protective pad wraps around the edge of the bezel part of the case top to prevent exposure of the bezel part of the case top, so that the light emitted from the liquid crystal display is reflected on the edge of the bezel part of the case top and the light splashing phenomenon is also improved. do.

According to the present invention, a 'C'-shaped protective pad is attached between the case top and the cover glass and between the case top and the liquid crystal panel, respectively, to prevent moisture and foreign substances from flowing into the liquid crystal panel from the outside. In particular, the 'C'-shaped protective pad fills the gap between the case top and the liquid crystal panel, thereby preventing moisture or foreign substances from entering the liquid crystal display device.

Those skilled in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

100: liquid crystal panel 110: backlight unit
120: cover bottom 130: guide panel
140: light guide plate 150: optical sheets
160: light source array 170: case top
173: edge portion 180: protection pad
180a: upper surface portion 180b: bent portion
180c: lower portion 190: cover glass

Claims (10)

liquid crystal panel;
a backlight unit disposed on a bottom surface of the liquid crystal panel and irradiating light perpendicular to the bottom surface;
a guide panel supporting the backlight unit and the liquid crystal panel;
a case top fastened to the guide panel in a state that surrounds the outer periphery of the front surface of the liquid crystal panel; and
and a protective pad surrounding the front part of the case top,
The protective pad is an opaque silicone material, a tape, or a liquid crystal display made of a desiccant material. The liquid crystal display device of claim 1 , wherein the protection pad surrounds an upper surface, a side surface, and a lower surface of the front part of the case top. According to claim 1, wherein the protective pad has an upper surface portion surrounding the outer periphery of the front portion of the case top, a bent portion bent from one side of the upper surface portion to surround an edge portion of the case top, and extending from the bent portion and a lower surface portion facing the upper surface portion and enclosing the lower surface of the front portion of the case top. The liquid crystal display device of claim 1 , wherein a cover glass is disposed on the protection pad. The liquid crystal display device of claim 4 , wherein the protection pad is provided between the cover glass and the liquid crystal panel. delete The liquid crystal display device of claim 1 , wherein an adhesive part is provided on an upper surface of the protective pad. The liquid crystal display device of claim 1 , wherein, among the protective pads surrounding the edge of the front part of the case top, the widths of both edges of the upper surfaces of the left and right protective pads are narrower than the width of the center of the upper surface. The liquid crystal display device of claim 4 , wherein the cover glass has a BM region in an outer portion thereof. The liquid crystal display of claim 9 , wherein a width of the BM region is equal to or smaller than a width of a front portion of the case top below the BM region.

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