KR101756932B1 - Liquid crystal display device and method for manufacturing the same - Google Patents

Abstract

The present invention can be applied to the case where the thickness of the case and / or set cover structures which have been considered essential for the display product is reduced by boldly omitting some of them, And a method of manufacturing the liquid crystal display device. The liquid crystal display device includes a lower substrate on which a lower polarizer is attached and an upper substrate on which an upper polarizer is attached, A liquid crystal display panel; A sealing part sealing a stepped portion of the upper polarizer and the upper substrate; A backlight unit for emitting light to the liquid crystal display panel; A set cover for accommodating the backlight unit; And a guide panel coupled to the set cover to support the liquid crystal display panel.

Description

TECHNICAL FIELD [0001] The present invention relates to a liquid crystal display (LCD)

The present invention relates to a liquid crystal display, and more particularly to a liquid crystal display which is capable of boldly omitting a part of the case and / or set cover configurations which have been considered essential components of a display product, The present invention relates to a liquid crystal display device and a method of manufacturing the same, which can prevent peeling and / or deformation of an upper polarizer plate exposed to the outside according to omission of a part of the liquid crystal display device.

2. Description of the Related Art In recent years, various types of flat panel display devices capable of reducing weight and volume, which are disadvantages of cathode ray tubes (CRTs), have been developed. As a flat panel display device, a liquid crystal display device, a plasma display panel (PDP), a field emission display device, a light emitting display device and the like are actively studied However, the liquid crystal display device is in the spotlight due to the advantages of mass production technology, ease of driving means, and realization of high image quality.

In recent years, along with the research and development of the technical aspects of flat panel display devices, the necessity of research and development has been particularly emphasized in terms of the design of products that can appeal to consumers. Accordingly, efforts are being made to minimize the thickness of the display device (slimness), and there is a growing need for a design in which aesthetics that appeals to the aesthetic sense of a consumer and stimulates purchase are promoted.

However, the development of a design for slimming down or improving the beauty of the display device which has been performed so far has been proceeded by adopting a constituent element of a conventional display device as it is and changing the structure of its constituent elements, There is a certain limit in developing a slim design or a new design.

For example, in the case of a liquid crystal display device, in general, a lower case and an upper case are essentially used to accommodate a liquid crystal display panel and a backlight unit. In addition, a product such as a notebook, a monitor, a mobile device, A separate front set cover and rear set cover were additionally used. As described above, since the lower case and the upper case, as well as the front and rear set covers of the product, are essentially used, there has been a limitation in reducing the product thickness or changing the design of the liquid crystal display. In particular, since the upper case and the front set cover essentially cover the front edge of the liquid crystal display panel, the thickness of the liquid crystal display device must be increased. In addition, the width of the edge of the liquid crystal display device is increased, It is an obstacle to devising diverse and innovative designs.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned problems by drastically omitting a part of the case and / or set cover constructions which have been regarded as essential components of a display product, And it is an object of the present invention to provide a liquid crystal display device and a method of manufacturing the same that can prevent peeling and / or deformation of an upper polarizer plate exposed to the outside according to omission.

According to an aspect of the present invention, there is provided a liquid crystal display device including: a liquid crystal display panel including a lower substrate having a lower polarizer attached thereto and an upper substrate having an upper polarizer attached thereto with a liquid crystal layer interposed therebetween; A sealing part sealing a stepped portion of the upper polarizer and the upper substrate; A backlight unit for emitting light to the liquid crystal display panel; A set cover for accommodating the backlight unit; And a guide panel coupled to the set cover to support the liquid crystal display panel.

According to an aspect of the present invention, there is provided a method of manufacturing a liquid crystal display device including a liquid crystal display panel including a lower substrate and an upper substrate bonded together with a liquid crystal layer interposed therebetween, Attaching an upper polarizer to the upper substrate; Forming a sealing portion for sealing a stepped portion of the upper polarizer and the upper substrate; Storing a backlight unit for irradiating light to the liquid crystal display panel in a storage space provided in the set cover; Placing a guide panel on the set cover in which the backlight unit is housed, And placing the liquid crystal display panel on the guide panel.

As described above, the liquid crystal display device and the manufacturing method thereof according to the present invention have the following effects.

First, an upper case of a general display device and a front set cover of a display product are boldly formed by placing a liquid crystal display panel on a guide panel using a bonding member and forming a front edge of the liquid crystal display panel with a guide panel or a set cover It is possible to omit the entire thickness and to improve the aesthetic effect on the front edge of the liquid crystal display device.

Second, by forming a sealing portion at the stepped portion between the upper polarizer and the upper substrate, it is possible to prevent the upper polarizer, which is exposed to the outside according to the omission of the upper case and the front set cover, to be peeled and / or deformed by the external environment.

Third, by sealing the gap space existing between the side surface of the liquid crystal display panel and the guide panel or between the side surface of the liquid crystal display panel and the set cover using the sealing member, foreign substances such as dust penetrate into the display device through the gap space Thereby improving the aesthetic effect on the front edge of the display device.

1 is a schematic view for explaining a liquid crystal display according to a first embodiment of the present invention.
FIG. 2A is a view for explaining a sealing part according to the first embodiment by enlarging part A shown in FIG.
FIG. 2B is a view for explaining a sealing part according to the second embodiment by enlarging part A shown in FIG.
3 is a schematic view for explaining a liquid crystal display according to a second embodiment of the present invention.
4 is a schematic view for explaining a liquid crystal display according to a third embodiment of the present invention.
5 is a schematic view for explaining a liquid crystal display according to a fourth embodiment of the present invention.
6A to 6F are views for explaining a method of manufacturing a liquid crystal display device according to a first embodiment of the present invention.
7A to 7F are views for explaining a method of manufacturing a liquid crystal display device according to a third embodiment of the present invention.

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

1 is a schematic view for explaining a liquid crystal display according to a first embodiment of the present invention.

Referring to FIG. 1, a liquid crystal display according to a first embodiment of the present invention includes a liquid crystal display panel 100, a backlight unit 200, a set cover 300, a lower case 400, a guide panel 500, , And a sealing part (600).

The liquid crystal display panel 100 displays a predetermined image by adjusting the transmittance of light emitted from the backlight unit 200. The liquid crystal display panel 100 includes a lower substrate 110, a lower polarizer 112, an upper substrate 120, and an upper polarizer 122.

The lower substrate 110 includes a plurality of pixels (not shown) formed for each region intersected by a plurality of gate lines (not shown) and a plurality of data lines (not shown).

Each pixel may include a thin film transistor (not shown) connected to a gate line and a data line, a pixel electrode connected to the thin film transistor, and a common electrode formed adjacent to the pixel electrode and supplied with a common voltage. The lower substrate 110 controls the light transmittance of the liquid crystal layer by forming an electric field corresponding to a difference voltage between a data voltage and a common voltage applied to each pixel.

The lower polarizer plate 112 is formed on the back surface of the lower substrate 110 to polarize the light incident from the backlight unit 200 and irradiate the polarized light onto the lower substrate 110.

The upper substrate 120 is configured to include a color filter corresponding to each pixel formed on the lower substrate 110, and is adhered to the lower substrate 110 with a liquid crystal layer sandwiched therebetween. At this time, a common electrode to which a common voltage is supplied may be formed on the upper substrate 120 according to the driving method of the liquid crystal layer. The upper substrate 120 transmits a predetermined color light to the liquid crystal layer 100 by filtering the incident light transmitted through the liquid crystal layer with a color filter, thereby displaying a predetermined color image on the liquid crystal display panel 100.

A specific configuration of the lower substrate 110 and the upper substrate 120 may be a driving mode of the liquid crystal display panel 100 such as TN (Twisted Nematic) mode, VA (Vertical Alignment) mode, IPS Mode, a fringe field switching (FFS) mode, and the like.

The upper polarizer 122 is formed on the front surface of the upper substrate 120 to polarize incident light transmitted through the upper substrate 120 and emits the polarized light.

The backlight unit 200 irradiates the back surface of the liquid crystal display panel 100 with light. To this end, the backlight unit 200 includes a light guide plate 210, a reflection sheet 220, and an optical member 230.

The light guide plate 210 is formed in a flat plate shape to have a light incidence surface, and advances the light incident from the light source (not shown) to the liquid crystal display panel 100 side. Here, the light source may include a substrate and a plurality of light emitting diodes mounted on the substrate, but is not limited thereto, and may be configured to include a fluorescent lamp.

The reflective sheet 220 is disposed on the back surface of the light guide plate 210 and reflects the light incident from the light guide plate 210 toward the light guide plate 210.

The optical member 230 is disposed on the light guide plate 210 to improve the brightness characteristic of light traveling from the light guide plate 210 to the liquid crystal display panel 100. To this end, the optical member 230 may be configured to include a lower diffusion sheet, a lower prism sheet, an upper prism sheet, and an upper diffusion sheet.

The lower diffusion sheet is disposed on the light guide plate 210 and diffuses the light incident from the light guide plate 210 to irradiate the lower prism sheet.

The lower prism sheet is disposed on the lower diffusion sheet to condense the light incident from the lower diffusion sheet in the first direction and irradiate the upper prism sheet. Here, the first direction may correspond to the long side or short side direction of the light guide plate 210.

The upper prism sheet is disposed on the lower prism sheet to condense the light incident from the lower prism sheet in the second direction and irradiate the upper diffusion sheet. Here, the second direction may be a direction orthogonal to the first direction.

The upper diffusion sheet is disposed on the upper prism sheet to diffuse the light incident from the upper prism sheet to irradiate the liquid crystal display panel 100.

At least one of the lower diffusion sheet, the lower prism sheet, the upper prism sheet, and the upper diffusion sheet may be omitted depending on the brightness characteristics of the light by the structure of the backlight unit 200.

The set cover 300 is formed in a rectangular shape and serves as a product cover of a productized display device by housing the lower case 400 and supporting the guide panel 500 and by wrapping the lower side of the guide panel 300 . To this end, the set cover 300 comprises a set plate 310, a set sidewall 320, and a first mating member 330.

The set plate 310 serves as a back cover covering the rear surface of the display device manufactured in the form of a flat plate.

The set side wall 320 is vertically bent to have a predetermined height from the end of the set plate 310 to form a storage space. The set sidewall 320 serves as a lower side cover covering the lower side of the display device by wrapping the lower side wall of the guide panel 500.

The first engaging member 330 may be formed in the shape of a groove on the inner side surface of the set sidewall 320. However, the first engaging member 330 may be formed in the shape of a hole or a projection.

The set cover 300 may be made of a plastic material or a metal material, but it is preferable that the set cover 300 is made of a metal material in order to improve the feel of the finished display device.

The lower case 400 includes a support plate 410 mounted on the set plate 310 and a support side wall 420 bent from the support plate 410 to support the backlight unit 200. That is, the backlight unit 200 is supported in a support space formed by the support plate 410 and the support side wall 420, and is stored. Here, the lower case 400 is preferably made of a metal material for radiating heat of the backlight unit 200.

Meanwhile, the lower case 400 may be coupled to the set plate 310 by an adhesive member (for example, a double-sided tape) or a fastening screw. In addition, the lower case 400 may be omitted depending on the structure of the product in which the liquid crystal display device is used.

The guide panel 500 supports the liquid crystal display panel 100 which is coupled to the set side wall 320 and is exposed to the outside so as to cover the side surface of the liquid crystal display panel 100, To form a rim. The guide panel 500 includes a guide sidewall 510, a set cover inserting portion 520, a panel seating portion 530, and a second engaging member 540.

The guide sidewall 510 is formed in a rectangular frame shape to cover a side surface of the liquid crystal display panel 100. At this time, the upper edge of the guide sidewall 510 is covered with the side surface of the liquid crystal display panel 100 and is exposed to the outside so as not to overlap with the front edge portion of the liquid crystal display panel 100, .

The set cover inserting portion 520 is recessed to have a predetermined depth from the outer lower surface of the guide sidewall 510 except for the upper edge portion of the guide sidewall 510. The lower side of the guide sidewall 510 is enclosed by the set sidewall 320 by inserting the set sidewall 320 into the set cover inserting portion 520.

The panel seating portion 530 is horizontally protruded from the inner wall of the guide side wall 510 to support the rear edge of the liquid crystal display panel 100. The panel seating portion 530 may be formed at a predetermined height to press the optical member 230 of the backlight unit 200 to prevent the optical member 230 from flowing. An adhesive member 550 is attached to the panel seating portion 530.

The adhesive member 550 is made of a double-sided tape to seat the liquid crystal display panel 100 on the guide panel 500. At this time, the adhesive member 550 may be attached between the rear edge portion of the lower substrate 110 or the lower polarizer plate 112 of the liquid crystal display panel 100 and the panel seating portion 530.

The second engaging member 540 is formed on the set cover inserting portion 520 to be engaged with the first engaging member 330 formed on the set cover 300. In this case, the second engaging member 540 may be formed as a protrusion protruding from the set cover inserting portion 520 so as to have a stepped surface and an inclined surface, but the present invention is not limited thereto, As shown in FIG. For example, when the first engaging member 330 is formed in a protrusion shape, the second engaging member 540 may be formed in the shape of a hole or a projection.

In the meantime, according to the present invention, the liquid crystal display panel 100 is seated on the panel seating portion 530 through the adhesive member 550, thereby omitting the upper case and the front set cover for covering the front edge of the liquid crystal display panel 100. Accordingly, when the upper surface of the liquid crystal display panel 100 mounted on the panel seating portion 530 is disposed higher or lower than the upper surface of the guide side wall 510, the upper surface of the liquid crystal display panel 100 and the guide sidewall 510 Due to the step difference between the surfaces, it may be an impediment to devising diverse and innovative designs. The panel seating portion 530 may be spaced away from the inner wall of the guide sidewall 510 corresponding to the overall height of the liquid crystal display panel 100 such that a step between the liquid crystal display panel 100 and the guide sidewall 510 is not generated Respectively.

The sealing portion 600 seals a stepped portion between the upper polarizer 122 and the upper substrate 120 to prevent peeling and / or deformation of the upper polarizer 122 due to an external environment. The stepped portion between the upper polarizer 122 and the upper substrate 120 is generated by a process margin for attaching the upper polarizer 122, Each side face of the polarizing plate 122 is located at a portion of about 1 mm or more from the four side edges of the upper substrate 120.

In general, the upper polarizer 122 may be composed of a plurality of optical films including a polarizing film, a protective film for protecting the polarizing film, and the like. Since the upper case and the front set cover are omitted, each side of the upper polarizer 122 is exposed to the external environment. As a result, foreign substances such as moisture or dust penetrate into the bonding portions of the plurality of optical films and the upper polarizer 122 is prevented from being adhered to the upper surface of the upper polarizer 122 by exposing each side surface of the plurality of optical films constituting the upper polarizer 122 to the external environment, . Also, as the side surface of the upper polarizer 122 is exposed to the external environment, the upper polarizer 122 may be peeled off from the upper substrate 120 by the user's contact.

Therefore, the sealing portion 600 prevents peeling and / or deformation of the upper polarizer 122 due to the external environment by sealing the stepped portion between the upper polarizer 122 and the upper substrate 120. [ The sealing portion 600 may be formed by a process of applying a sealant made of a silicone resin or an ultraviolet ray-curable resin to the step and a process of curing the sealant to a stepped portion between the upper polarizer 122 and the upper substrate 120 . 2A, the sealing portion 600 may be formed between the side surface of the upper polarizer 122 and the upper surface of the upper substrate 120 to seal a part of the step portion, or to seal the lower surface of the upper substrate 120, as shown in FIG. The upper surface of the upper substrate 120 and the upper surface of the upper polarizer 122 may be sealed.

In the liquid crystal display device according to the first embodiment of the present invention, the liquid crystal display panel 100 is placed on the guide panel 500 using the adhesive member 550, and the guide panel 500 is set on the set side wall 320 to form the front edge of the liquid crystal display panel 100 with the upper edge portion of the guide panel 500. Accordingly, the first embodiment of the present invention can drastically omit the upper case and the front set cover of a general liquid crystal display, thereby reducing the overall thickness of the liquid crystal display, Can be improved.

The liquid crystal display device according to the first embodiment of the present invention includes the upper case and the front set cover of a general liquid crystal display device by forming the sealing part 600 at the step of the upper polarizer 122 and the upper substrate 120 The upper polarizer 122 exposed to the outside can be prevented from being peeled and / or deformed by the external environment.

3 is a schematic view for explaining a liquid crystal display according to a second embodiment of the present invention.

3, the liquid crystal display according to the second embodiment of the present invention includes a liquid crystal display panel 100, a backlight unit 200, a set cover 300, a lower case 400, a guide panel 500, A sealing part 600, and a sealing member 700. The sealing part 600 is formed of a sealing material. The second embodiment of the present invention having such a configuration has the same configuration as that of the first embodiment of the present invention shown in Figs. 1 and 2B except that it further includes the sealing member 700, Will be replaced with the above description, and the same reference numerals will be given.

Since manufacturing process errors may occur in manufacturing the liquid crystal display panel 100 and the guide panel 500, the side surfaces of the liquid crystal display panel 100 and the guide sidewalls 510 of the guide panel 500, There is a gap space according to a process error. Accordingly, the sealing member 700 prevents the foreign substances such as dust from penetrating into the liquid crystal display device through the gap space by sealing the gap space. In addition, the gap space Gap ) Of the front edge portion of the liquid crystal display device which is deteriorated by the liquid crystal display device.

The sealing member 700 may be composed of a ring inserted into the gap space to seal the gap space. At this time, it is preferable that the color of the sealing member 700 has the same color as that of the guide panel 500 so that the aesthetic effect due to the color difference from the guide panel 500 is not deteriorated.

4 is a schematic view for explaining a liquid crystal display according to a third embodiment of the present invention.

4, a liquid crystal display according to a third exemplary embodiment of the present invention includes a liquid crystal display panel 100, a backlight unit 200, a set cover 800, a lower case 400, a guide panel 900, , And a sealing part (600). The third embodiment of the present invention having such a configuration has the same configuration as the first embodiment of the present invention shown in Fig. 1 except for the set cover 800 and the guide panel 900, Are replaced with the above description, and the same reference numerals are given.

The set cover 800 is formed in a rectangular shape and serves as a product cover of a display device manufactured by housing the lower case 400 and supporting the guide panel 900 and wrapping the side surface of the liquid crystal display panel 100 . To this end, the set cover 800 comprises a set plate 810, a set sidewall 820, and a first mating member 830.

The set plate 810 serves as a rear cover covering the rear surface of the display device manufactured in the form of a flat plate.

The set side wall 820 is vertically bent to have a predetermined height from the end of the set plate 810 to form a storage space. The upper side of the set sidewall 820 is covered with the side surface of the liquid crystal display panel 100 and exposed to the outside so as not to overlap the front edge portion of the liquid crystal display panel 100 to form the front edge of the liquid crystal display panel 100 do. The set sidewall 820 serves as a side cover covering the side surface of the manufactured display device by being coupled with the guide panel 900 and by wrapping the side surface of the liquid crystal display panel 100.

In the meantime, according to the present invention, the liquid crystal display panel 100 is placed on the guide panel 900 through the adhesive member 550 so that the upper case and the front set cover for covering the front edge of the liquid crystal display panel 100 are omitted. Accordingly, when the height of the set sidewall 820 is higher or lower than the upper surface of the liquid crystal display panel 100, a variety of innovative designs are devised due to a step between the liquid crystal display panel 100 and the upper surface of the set sidewall 820 It can be a disability. The height of the set sidewall 820 is set so that the upper surface of the set sidewall 820 is positioned on the same line as the upper surface of the liquid crystal display panel 100 which is placed on the guide panel 900. [

The first engaging member 830 may be formed in the shape of a groove on the inner side surface of the set sidewall 820, but is not limited thereto and may be formed in the form of a hole or a projection.

The set cover 800 may be made of a plastic material or a metal material, but it is preferable that the set cover 800 is made of a metal material in order to improve the feel of the finished display device.

The guide panel 900 supports the liquid crystal display panel 100 which is coupled to the set side wall 820 to be seated. To this end, the guide panel 900 comprises a guide sidewall 910, a panel seating portion 930, and a second engagement member 940.

The guide sidewall 910 is formed in a rectangular shape and is coupled to the set sidewall 820 to be accommodated in a storage space formed in the set cover 800. At this time, the guide side wall 910 is formed to have a lower height than the height of the set side wall 820, and is disposed between the side of the lower case 400 and the set side wall 820.

The panel seating portion 930 horizontally protrudes from the upper portion of the guide sidewall 910 to support the rear edge of the liquid crystal display panel 100. At this time, the panel seating portion 930 corresponds to the overall height of the liquid crystal display panel 100 so as to prevent a step between the upper surface of the set sidewall 820 and the upper surface of the liquid crystal display panel 100 mounted on the guide panel 900 And protrudes from the upper portion of the guide sidewall 910.

The second engaging member 940 is formed on the guide sidewall 910 so as to engage with the first engaging member 830 formed on the set cover 800. The second engaging member 940 may be formed as a protrusion protruding from the outer side surface of the guide sidewall 910 so as to have a stepped surface and an inclined surface, And may be formed in various shapes depending on the structure. For example, when the first engaging member 830 is formed in a protrusion shape, the second engaging member 940 may be formed in the form of a hole or a projection.

The lower case 400 includes a support plate 410 mounted on the set plate 810 and a support side wall 420 bent from the support plate 410 to support the backlight unit 200 . The lower case 400 may be omitted depending on the structure of the product in which the liquid crystal display device is used.

In the liquid crystal display device according to the third embodiment of the present invention, the liquid crystal display panel 100 is mounted on the guide panel 900 using the adhesive member 550, and the guide panel 900 is set on the set side wall 820 to form a front cover of the liquid crystal display panel 100 on the upper side of the set sidewall 820. The liquid crystal display panel 100 has a set cover 800 as a product cover for covering the side and rear surfaces of the liquid crystal display device. Accordingly, the third embodiment of the present invention can drastically omit the upper case and the front set cover of a general liquid crystal display device, thereby reducing the overall thickness of the liquid crystal display device, Can be improved.

In the display device according to the third embodiment of the present invention, the upper case and the front set cover of the general liquid crystal display device are omitted by forming the sealing part 600 at the stepped part between the upper polarizer 122 and the upper substrate 120 The upper polarizer 122 exposed to the outside can be prevented from being peeled and / or deformed by the external environment.

5 is a schematic view for explaining a liquid crystal display according to a fourth embodiment of the present invention.

5, a liquid crystal display according to a fourth exemplary embodiment of the present invention includes a liquid crystal display panel 100, a backlight unit 200, a set cover 800, a lower case 400, a guide panel 900, A sealing portion 600, and a closure member 1000. The sealing member 600 is a sealing member. The fourth embodiment of the present invention having such a configuration has the same configuration as that of the third embodiment of the present invention shown in Fig. 4 except that it further includes the sealing member 1000, Are replaced with the above description, and the same reference numerals are given.

The sealing member 1000 is provided between the side surface of the liquid crystal display panel 100 and the set side wall 820 of the set cover 800 according to the manufacturing process errors of the liquid crystal display panel 100 and the set cover 800 It is possible to prevent foreign substances such as dust from penetrating into the inside of the liquid crystal display device through the gap space by sealing the gap space and to prevent the foreign substances such as dust from penetrating into the front edge of the liquid crystal display device which is deteriorated by the gap space Thereby improving the aesthetic effect on the part. To this end, the sealing member 1000 may be composed of a ring inserted into the gap space to seal the gap space. At this time, it is preferable that the color of the closure member 1000 has the same color as that of the set cover 800 so that the aesthetic effect due to the color difference with the set cover 800 is not lowered.

The liquid crystal display device according to the fourth embodiment of the present invention not only provides the effect of the liquid crystal display device according to the third embodiment of the present invention described above but also the gap space Gap Is prevented from penetrating into the interior of the liquid crystal display device through the gap space, and furthermore, it is possible to prevent impurities such as dust from penetrating into the inside of the liquid crystal display device through the gap space, Improve the effect.

Meanwhile, the liquid crystal display device according to the embodiments of the present invention can be used in a notebook computer, a monitor, a television, a mobile device, or the like.

6A to 6F are views for explaining a method of manufacturing a liquid crystal display device according to a first embodiment of the present invention.

6A to 6F, a method of manufacturing the liquid crystal display according to the first embodiment of the present invention will be described.

First, as shown in FIG. 6A, a liquid crystal display panel 100 including a lower substrate 110 and an upper substrate 120 which are bonded together with a liquid crystal layer (not shown) therebetween is provided, and the lower substrate 110 And the upper polarizer 122 is attached to the upper substrate 120. In addition,

Then, as shown in FIG. 6B, a sealing portion 600 sealing the stepped portion of the upper polarizer 122 and the upper substrate 120 is formed. 2A, the sealing portion 600 may be formed between the side surface of the upper polarizer 122 and the upper surface of the upper substrate 120 to seal a part of the step portion, or to seal the lower surface of the upper substrate 120, as shown in FIG. The upper surface of the upper substrate 120 and the upper surface of the upper polarizer 122 may be sealed. The sealing portion 600 may be formed by a process of applying a sealing agent to a part or the whole of the stepped portion and a step of curing the applied sealing agent. Here, the sealing agent may be composed of a silicone resin or an ultraviolet ray curable resin.

Then, as shown in Fig. 6C, the lower case 400 supporting the backlight unit 200 is housed in the storage space of the set cover 300. Fig. At this time, the lower case 400 may be omitted depending on the structure of the product in which the liquid crystal display device is used.

6D, the backlight unit 200 for irradiating the liquid crystal display panel 100 with light is housed in a support space of the lower case 400. As shown in FIG. At this time, when the lower case 400 is omitted, the backlight unit 200 is accommodated in the storage space of the set cover 300.

6E, the guide panel 500 is housed in the set cover 300 so that the first engaging member 330 of the set cover 300 and the second engaging member 330 of the guide panel 500 540 to each other. At this time, the guide panel 500 is supported by the set cover 300. An adhesive member 550 is attached to the panel seating portion 530 of the guide panel 500.

6F, the liquid crystal display panel 100 is mounted on the guide panel 500 by using the adhesive member 550 attached to the guide panel 500, and thereby the guide panel 500 And the front edge of the liquid crystal display panel 100 is formed.

6F, after the liquid crystal display panel 100 is mounted on the guide panel 500, the side surface of the liquid crystal display panel 100 is covered with the sealing member 700, as shown in FIG. A process of sealing the gap space between the guide sidewalls 510 of the guide panel 500 can be further performed.

7A to 7F are views for explaining a method of manufacturing a liquid crystal display device according to a third embodiment of the present invention.

7A to 7F, a method of manufacturing a liquid crystal display device according to a third embodiment of the present invention will be described.

First, as shown in FIG. 7A, a liquid crystal display panel 100 including a lower substrate 110 and an upper substrate 120 which are bonded together with a liquid crystal layer (not shown) therebetween is provided, and a lower substrate 110 And the upper polarizer 122 is attached to the upper substrate 120. In addition,

Then, as shown in FIG. 7B, a sealing portion 600 for sealing the stepped portion of the upper polarizer 122 and the upper substrate 120 is formed. 2A, the sealing portion 600 may be formed between the side surface of the upper polarizer 122 and the upper surface of the upper substrate 120 to seal a part of the step portion, or to seal the lower surface of the upper substrate 120, as shown in FIG. The upper surface of the upper substrate 120 and the upper surface of the upper polarizer 122 may be sealed. The sealing portion 600 may be formed by a process of applying a sealing agent to a part or the whole of the stepped portion and a step of curing the applied sealing agent. Here, the sealing agent may be composed of a silicone resin or an ultraviolet ray curable resin.

Then, as shown in Fig. 7C, the lower case 400 supporting the backlight unit 200 is housed in a storage space of the set cover 800. [ At this time, the lower case 400 may be omitted depending on the structure of the product in which the liquid crystal display device is used.

7D, a backlight unit 200 for irradiating light to the liquid crystal display panel 100 is housed in a support space of the lower case 400.

7E, the guide panel 900 is housed in the set cover 800 so that the first engagement member 830 of the set cover 800 and the second engagement member 830 of the guide panel 900 940 to each other. At this time, the guide panel 900 is supported by the lower case 400. An adhesive member 550 is attached to the panel seating portion 930 of the guide panel 900.

7F, the liquid crystal display panel 100 is seated on the guide panel 900 by using the adhesive member 550 attached to the guide panel 900 so that the set cover 800 exposed to the outside ) Of the liquid crystal display panel 100 is formed by the set side wall 820 of the liquid crystal display panel 100.

5F, after the liquid crystal display panel 100 is mounted on the guide panel 900, the side surface of the liquid crystal display panel 100 is covered with the sealing member 1000 It is possible to further perform a process of sealing the gap space (Gap) existing between the set sidewalls 820 of the set cover 800.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: liquid crystal display panel 110: lower substrate
112: lower polarizer 120: upper substrate
122: Upper polarizer 200: Backlight unit
300, 800: set cover 400: lower case
500, 900: guide panel 550: adhesive member
600: sealing part 700, 1000: sealing member

Claims (14)

A liquid crystal display panel in which a lower substrate on which a lower polarizer is attached and an upper substrate on which an upper polarizer is attached are bonded together with a liquid crystal layer interposed therebetween;
A sealing part sealing a stepped portion of the upper polarizer and the upper substrate;
A backlight unit for emitting light to the liquid crystal display panel;
A set cover for accommodating the backlight unit;
A lower case housed in the set cover to support the backlight unit;
A panel seating portion coupled to the set cover to support the liquid crystal display panel and guiding the side surface of the liquid crystal display panel horizontally and horizontally projecting from the inner wall of the guide side wall to support the back edge of the liquid crystal display panel, A guide panel having a set cover insert portion recessed from an outer lower surface of the guide side wall; And
And an adhesive member attached between the lower polarizer plate and the panel seating portion,
Wherein the set cover is inserted and coupled to the set cover insertion portion, and the lower case supports the panel seating portion. The method according to claim 1,
Wherein the sealing portion is a silicone resin or an ultraviolet ray curable resin. The method according to claim 1,
Wherein the guide panel or the set cover is exposed to the outside so as to surround the side surface of the liquid crystal display panel to provide a front edge of the liquid crystal display panel. The method according to claim 1,
Wherein the sealing portion is provided between a side surface of the upper polarizer and an upper surface of the upper substrate to seal the lower surface of the upper substrate. The method according to claim 1,
Wherein the sealing portion is provided between a top edge of the upper polarizer and an upper surface of the upper substrate to seal the step. delete The method of claim 3,
And a sealing member for sealing the gap space between the guide panel and the upper surface of the liquid crystal display panel or the gap space between the set cover and the upper surface of the liquid crystal display panel. A liquid crystal display panel including a lower substrate and an upper substrate bonded together with a liquid crystal layer sandwiched therebetween, attaching a lower polarizer to the lower substrate, and attaching an upper polarizer to the upper substrate;
And a sealing portion sealing the stepped portion of the upper polarizer and the upper substrate;
Storing the lower case in a storage space provided in the set cover;
Receiving a backlight unit for emitting light to the liquid crystal display panel;
Placing a guide panel on the set cover in which the backlight unit is housed, And
The guide side wall of the guide panel surrounds the side surface of the liquid crystal display panel and has a set cover insertion portion which is recessed from the outer lower surface of the guide side wall,
And placing the liquid crystal display panel on the guide panel using a bonding member attached to the panel seating portion such that a panel seating portion horizontally protruding from the inner wall of the guide sidewall supports the back edge of the liquid crystal display panel ,
Wherein the set cover is inserted and coupled to the set cover insertion portion, and the lower case supports the panel seating portion. 9. The method of claim 8,
Wherein the step of providing the sealing portion comprises:
Applying a sealing agent between a side surface of the upper polarizer and an upper surface of the upper substrate; And
And curing the sealing agent. 9. The method of claim 8,
Wherein the step of providing the sealing portion comprises:
Applying a sealing agent between a top edge of the upper polarizer and an upper surface of the upper substrate; And
And curing the sealing agent. 11. The method according to claim 9 or 10,
Wherein the sealing agent is a silicone resin or an ultraviolet ray curable resin. 9. The method of claim 8,
Wherein the guide panel or the set cover is exposed to the outside so as to surround a side surface of the liquid crystal display panel to form a front edge of the liquid crystal display panel. delete 9. The method of claim 8,
And sealing the gap space by providing a sealing member in a gap space between the guide panel and the upper surface of the liquid crystal display panel or a gap space between the set cover and the upper surface of the liquid crystal display panel, ≪ / RTI >

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