KR20130025221A - Liquid crystal display - Google Patents

Abstract

PURPOSE: A liquid crystal display is provided to prevent tension and warpage by using a hexagonal column spacer for a non-display area. CONSTITUTION: A thin film transistor substrate(120) includes a displaying area and a non-display area. A first column spacer(160) separates the thin film transistor substrate from a color filter substrate(110) in the displaying area. A second column spacer(150) having a hexagonal shape is arranged in the part which corresponds to the non-display area on the color filter substrate.

Description

Liquid Crystal Display {LIQUID CRYSTAL DISPLAY}

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device capable of improving light leakage.

Recently, various types of flat panel display devices include a liquid crystal display device, a plasma display panel, a fixed emission display device, and a light emitting display device. Device, etc. In particular, liquid crystal display devices are in the spotlight in terms of mass production technology, ease of driving means, and high definition.

1 is a plan view showing a conventional liquid crystal display, and FIG. 2 is a cross-sectional view of a portion cut along the line AA ′ in the plan view of FIG. 1.

As shown in FIGS. 1 and 2, a conventional liquid crystal display device may be divided into a display area C in which an image is output and a non-display area D in which an image is not output. In the display area, a plurality of column spacers are used to separate the thin film transistor substrate 12 and the color filter substrate 11 constituting the liquid crystal display device at regular intervals or to prevent the thin film transistor substrate and the color filter substrate from bending. (15, 16) are formed.

In addition, the conventional liquid crystal display device is formed on the outermost portion of the non-display area to seal the liquid crystal layer of the liquid crystal display device from the outside, and is formed between the display area and the non-display area or inside the seal. And a dam 14 to reduce the flow of water.

The column spacer 15 and the dam 14 formed in the non-display area C as described above are all based on the pressed column spacer, and the thin film transistor substrate 12 has a thickness of about 2 μm or more. It has a gap.

On the other hand, when a force is applied from the outside in the conventional liquid crystal display device, there is a problem that the liquid crystal display device may be difficult to withstand the external force.

This effect is largely generated in the non-display area as the liquid crystal display device becomes slimmer and its shape changes to a borderless type.

In other words, in recent years, the necessity of research and development in the design aspect of products that can appeal more to the users in addition to the research and development of the technical aspects of the liquid crystal display devices has been particularly highlighted, thereby minimizing the thickness of the liquid crystal display device. Along with efforts to slim down, various borderless liquid crystal display devices have been developed in which there is no step in the plane of the liquid crystal display device.

The borderless type attaches the bottom of the outer portion of the liquid crystal display device to a case such as a panel guide using an adhesive or an adhesive tape, so that no step is visible on the plane of the liquid crystal display device exposed to the outside. have.

However, as described above, an adhesive or an adhesive tape is attached to the bottom of the non-display area forming the outline of the liquid crystal display device, and the non-display area is covered by the panel guide or the like. Will receive.

As a result, a phenomenon in which the non-display area is bent or deformed may occur, and thus, a problem such as light leakage may occur in the entire liquid crystal display.

That is, in the conventional liquid crystal display device applied to a borderless concept, the non-display area is attached to the panel guide by using an adhesive or an adhesive tape. In this case, the non-display area receives the force from the panel guide. A curved or deformed phenomenon may occur, which may cause a light leakage defect in which light leaks through the non-display area.

As described above, in the conventional liquid crystal display device, a gap column spacer (Gap CS) contacting both the thin film transistor substrate and the color filter substrate is formed only in the display area, and the non-display area is pressed with no pigment (protrusion). Since the column spacer is formed, the thin film transistor substrate and the color filter substrate have a spacing of about 2 μm or more. Further, the arrangement of the pressed column spacers formed in the non-display area is also the same arrangement as the gap column spacers formed in the display area or the same arrangement using fewer numbers. Therefore, the thin film transistor substrate and the color filter substrate are hardly supported by the column spacer formed in the non-display area.

In addition, the conventional liquid crystal display device has a column spacer in the non-display area as described above, but since the thin film transistor substrate and the color filter substrate are separated, the non-display area is attached to the panel guide through an adhesive or an adhesive tape. Esau has disadvantages.

That is, in the conventional liquid crystal display device, the arrangement structure of the column spacers of the display area is applied to the column spacers of the non-display area as they are. In particular, since the column spacers of the non-display area have a constant distance from the thin film transistor substrate, The conventional liquid crystal display device has a problem in that it is weak in stress or warpage applied to the non-display area. Therefore, when the non-display area of the conventional liquid crystal display device is attached to the panel guide, light leakage occurs in the liquid crystal display device and the panel guide attachment portion.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problem, and it is a technical object of the present invention to provide a liquid crystal display device in which a column spacer disposed in a non-display area is formed in a hexagonal columnar shape.

According to an aspect of the present invention, there is provided a liquid crystal display device comprising: a thin film transistor substrate including a display area including pixel areas and a non-display area formed outside the display area; A color filter substrate on which color filters corresponding to the pixel regions are formed; A liquid crystal layer formed between the thin film transistor substrate and the color filter substrate; A plurality of first column spacers connected between the thin film transistor substrate and the color filter substrate to space the thin film transistor substrate and the color filter substrate at regular intervals in the display area; And a plurality of second column spacers arranged in a hexagonal column on a portion of the color filter substrate corresponding to the non-display area.

According to the above solution, the present invention provides the following effects.

That is, according to the present invention, since the column spacer disposed in the non-display area is formed in the shape of a hexagonal column, the column spacer may be more resistant to stress or bending applied to the non-display area. Accordingly, the present invention provides an effect of reducing the light leakage caused in the non-display area of the liquid crystal display.

1 is a plan view showing a conventional liquid crystal display device.
FIG. 2 is a cross-sectional view taken along the line AA ′ in the plan view of FIG. 1; FIG.
3 is a plan view showing a liquid crystal display device according to the present invention;
4 is a cross-sectional view taken along the line BB ′ in the plan view of FIG. 3.
FIG. 5 is a perspective view illustrating a portion of the second column spacer shown in FIG. 3.
6 is a cross-sectional view showing a state in which a liquid crystal display according to the present invention is attached to a panel guide.

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

3 is a plan view showing a liquid crystal display according to the present invention, and shows only a part of the plan view of the entire liquid crystal display. 4 is a cross-sectional view of the part cut in the B-B 'direction in the plan view shown in FIG. 5 is a perspective view illustrating a portion of the second column spacer shown in FIG. 3.

The present invention is characterized by improving adhesion light leakage generated in the non-display area to which the adhesive or the adhesive tape is attached by changing the shape of the column spacer formed in the non-display area.

To this end, as shown in FIGS. 3 and 4, the liquid crystal display according to the present invention includes a display area D including pixel areas formed by intersections of gate lines and data lines, and formed outside the display area. The thin film transistor substrate 120 including the non-display area C, the color filter substrate 110 having the color filters corresponding to the pixel regions, and the liquid crystal layer 170 formed between the thin film transistor substrate and the color filter substrate. ), A first column spacer 160 connected between the thin film transistor substrate and the color filter substrate to space the thin film transistor substrate and the color filter substrate at regular intervals, and a portion corresponding to the non-display region of the color filter substrate. The second column spacer 150 arranged in the shape of a hexagonal column at the outermost portion of the non-display area is bonded to the color filter substrate and the thin film transistor substrate. A seal 130 for sealing the liquid crystal layer, a boundary dam 142 formed at a portion corresponding to the boundary between the non-display area and the display area of the color filter substrate, and a non-display area of the color filter substrate to block the flow of liquid crystals. It may be formed on the innermost portion of the seal in the outermost portion of the including the outermost dam 141 for blocking the flow of liquid crystal.

First, the thin film transistor substrate 120 has a gate line and a data line arranged perpendicularly to each other to define a pixel region, and a thin film transistor TFT is formed at a portion where each gate line and the data line cross each other. The pixel electrode is formed in the pixel region.

The thin film transistor TFT may include a gate electrode protruding from the gate line, a data electrode protruding from the data line, and a drain electrode spaced apart from the data electrode on the gate electrode by a predetermined distance.

In addition, the semiconductor layer is further formed under the data electrode and the drain electrode to cover the gate electrode.

In addition, a gate insulating film is formed on the entire surface including the gate line on the thin film transistor substrate 120, and a protective film is formed on the gate insulating film. The upper portion of the drain electrode of the passivation layer is exposed to define a contact hole, and the pixel electrode is connected to the drain electrode through the contact hole.

Here, the gate insulating film and the protective film are formed by depositing a thickness of 2000 to 4000 kPa as an inorganic insulating film component.

Meanwhile, in FIG. 4, various components as described above constituting the thin film transistor substrate 120 are simply illustrated in a plurality of layers. That is, the thin film transistor substrate 120 may generally include the components described above, but the specific configuration of the thin film transistor substrate may include a liquid crystal display device according to the present invention, TN mode, VA mode, IPS. According to the type of the various types such as mode, FFS mode, etc., and also in the case of the same type can be variously changed in various forms, in Figure 4 the shape of the thin film transistor substrate 120 is simply a plurality of layers It is shown by the bay.

In the case of the color filter substrate 110 described below, the components included in the color filter are standardized to some extent, but since their configuration forms may be variously changed, the color filter substrate 110 of FIG. The configuration is also shown simply with a plurality of layers.

That is, the liquid crystal display according to the present invention is characterized by the structure of the column spacer formed between the thin film transistor substrate and the color filter substrate, and the thin film transistor substrate 120 and the color filter substrate 110 constituting the liquid crystal display device. ) May be formed in various forms.

Meanwhile, as described above, the pixel areas formed by the intersection of the gate lines and the data lines are referred to as a display area D. That is, the viewer can visually check the image output through the display area of the liquid crystal display.

Here, the display area D refers to the entire area where the pixel areas are formed as described above, and an image may be output through the pixel area. However, the display area D may be further divided into a pixel area and a non-pixel area. That is, the pixel region is a region in which an image can be output according to the amount of light transmitted because the pixel electrode is formed, and the non-pixel region is a region formed between the pixel region and the pixel region and means a portion where light is not transmitted to the outside. .

In addition, the display area D or the non-display area C formed outside the display area is not distinguished only from the thin film transistor substrate 120 or the color filter substrate 110, but a liquid crystal display formed by bonding two substrates together. It is divided throughout the plane of the device.

That is, FIG. 3 is a plan view of the liquid crystal display according to the present invention in which the thin film transistor substrate 120 and the color filter substrate 110 are bonded to each other with the liquid crystal layer 170 interposed therebetween. The whole is divided into a display area D or a non-display area C. FIG.

Next, the color filter substrate 110 facing the thin film transistor substrate 120 includes a black matrix for covering non-pixel regions (gate lines, data lines, and thin film transistor (TFT) regions) other than the pixel region among the display regions. In addition, the thin film transistor substrate 120 may include an overcoat layer formed on the front surface of the color filter substrate including a color filter and a color filter formed of R, G, and B pigments corresponding to each pixel region of the thin film transistor substrate 120.

That is, the color filter substrate 110 includes a black matrix BM defining a plurality of pixel areas, and a red, green, and blue color filter formed in each pixel area defined by the black matrix. And an overcoat layer OC formed to cover the red, green, and blue color filters and the black matrix to planarize the thin film transistor substrate 110.

Here, the color filter is formed in a matrix form in the display area of the liquid crystal display to determine the color of light emitted from each pixel area.

In addition, the black matrix BM is formed in a matrix form corresponding to the external shape of each pixel area in the display area of the liquid crystal display device, so that light emitted from the pixel area does not affect light emitted from an adjacent pixel area. The function of preventing light leakage of light emitted from each pixel area is performed.

In addition, the overcoat layer OC serves to planarize the surface of the upper substrate on which the black matrix and the color filter are formed.

Meanwhile, in the liquid crystal display device, the liquid crystal of the liquid crystal layer 170 formed between the thin film transistor substrate 120 and the color filter substrate 110 is aligned by an electric field between the common electrode and the pixel electrode formed to face the pixel electrode. In order to express an image by adjusting the amount of light passing through the liquid crystal layer according to the degree of alignment of the liquid crystal layer, the common electrode which performs this function may include any type of the liquid crystal display device described above. In some embodiments, the thin film transistor substrate 120 may be formed on the thin film transistor substrate 120 or the color filter substrate 110.

Next, the first column spacer 160 is connected between the thin film transistor substrate and the color filter substrate to space the thin film transistor substrate and the color filter substrate at regular intervals, and is particularly formed in the display area D. Refers to the column spacer.

The first column spacer 160 performs a structure and a function similar to those of the second column spacer to be described below. Therefore, the structure and function of the first column spacer 160 are described below together with the structure and function of the second column spacer 150.

Next, the second column spacer 150 is arranged in a portion corresponding to the non-display area of the color filter substrate. Like the first column spacer, the second column spacer 150 spaces the thin film transistor substrate and the color filter substrate at regular intervals or in color. It serves to prevent the filter substrate from sinking. Hereinafter, the first column spacer and the second column spacer will be collectively referred to as a column spacer.

As described above, a spacer is formed between the thin film transistor substrate 120 and the color filter substrate 110 of the liquid crystal display device to maintain a constant gap in which the liquid crystal layer 170 is formed. Column spacers (CS) are formed.

That is, the column spacer may be formed at a desired position with the same density throughout the liquid crystal display device, thereby maintaining a constant cell gap between the thin film transistor substrate and the color filter substrate, thereby preventing the opening ratio from being lowered. have.

On the other hand, the basic function of the column spacer is to keep the distance between the two substrates constant as described above, or the first column spacer formed in the display area D and the second column formed in the non-display area C. The shape and function of the column spacer can be slightly different.

That is, the first column spacer 160 formed in the display area D is formed to overlap the black matrix formed along the gate line. In particular, both the thin film transistor substrate 120 and the color filter substrate 110 are formed. It is formed to contact with. Accordingly, the first column spacer 160 is faithful to the basic function of the column spacer to maintain the gap between the thin film transistor substrate 120 and the color filter substrate 110. That is, the first column spacer is in contact with both the thin film transistor substrate and the color filter substrate to maintain the gap between the two substrates, also referred to as a gap column spacer (Gap CS).

In addition, when the first column spacer 160 is formed on the color filter substrate 110 and then the color filter substrate is bonded to the thin film transistor substrate, the first column spacer 160 adheres to a protective film, an insulating film, an alignment film, or the like formed on the uppermost surface of the thin film transistor substrate. As a result, the cell gap between the two substrates can be maintained.

In addition, the first column spacer 160 may be configured to maintain the distance between the two substrates together with the first protrusion 161. That is, a first column spacer is formed on the color filter substrate as described above, and a first protrusion 161 corresponding to the column spacer is formed on the thin film transistor substrate, and the first column spacer 160 is formed when two substrates are bonded to each other. ) And the first protrusion 161 are in contact with each other to form a single column, thereby maintaining a distance between the two substrates. In this case, the first protrusion 161 may serve to prevent crushing defects that may occur when the first column spacer directly contacts the thin film transistor substrate, and a pigment may be used.

That is, the first column spacer 160 formed by being deposited on the color filter substrate 110 may directly contact the thin film transistor substrate 120 to maintain cell gaps between the two substrates. The cell gap may be maintained in contact.

Meanwhile, as shown in FIG. 4, the second column spacer 150 is formed in the non-display area C to additionally maintain the gap between the thin film transistor substrate 120 and the color filter substrate 110. It can be formed through the same process as the one column spacer.

Therefore, when the first column spacer 160 is formed to be bonded to both the thin film transistor and the color filter substrate, the second column spacer 150 is also bonded to both substrates in the non-display area. Can be formed.

In addition, when the first column spacer 160 is formed in contact with the first protrusion formed on the thin film transistor substrate 120 to maintain the gap between the two substrates, the non-display area has the same length as the first column spacer. Since only the second column spacer 150 is formed, a predetermined gap may be formed between the second column spacer and the thin film transistor substrate.

In addition, when the first column spacer 160 is formed in contact with the first protrusion 161 formed on the thin film transistor substrate 120 to maintain a gap between the two substrates, the second column formed in the non-display area. The column spacer 150 may also be formed by being combined with the second protrusion 159. In this case, the second protrusion 159 coupled to the second column spacer 150 may be a pigment used in the color filter, or a protective film PAC applied to the thin film transistor may be used.

That is, the second column spacer 150 formed on the color filter substrate 110 is in direct contact with the thin film transistor substrate 120 and the color filter substrate 110 or is formed on the thin film transistor substrate. The protrusion 159 may be in contact with the color filter substrate or may be formed at a predetermined distance from the thin film transistor substrate.

Meanwhile, in the above, the state in which the second column spacer 150 is connected to the color filter substrate 110 and the thin film transistor substrate 120 has been described. Hereinafter, the second column spacer 150 itself has the characteristics. It is explained.

In general, although the column spacer formed in the display area and the non-display area of the conventional liquid crystal display device is formed in a cylindrical shape, the second column spacer 150 applied to the present invention is shown in FIG. It is composed of hexagonal pillars.

That is, the second column spacer 150 applied to the present invention includes a first support part 151 having a hexagonal column shape having an empty inside and a second support part 152 formed in an empty space of the first support part having a cylindrical shape. It is configured to include.

Here, the first support portion 151 is formed in the form of a hexagonal hollow hollow inside, the first support portion of the other second column spacer adjacent to this is formed continuously to share any one of the six sides. .

In addition, each of the six surfaces constituting the first support portion 151 is formed with a through portion 153 penetrating the inside and outside. That is, each of the six surfaces constituting the first support portion is formed with a through portion 153 from the upper end to the lower end of the surface.

The through part 153 is intended to fill the liquid crystal without leaving a space in the non-display area C. FIG. That is, without the through part 153, the liquid crystal does not pass through the first support part 151, and thus the liquid crystal may not be filled in the first support part. Therefore, the through part is to distribute the liquid crystal evenly over the entire area of the non-display area.

In addition, a cylindrical cylindrical second support part 152 is formed in the inner space of the first support part 151. The second support part 152 is to improve the function of the second column spacer 150 supporting the thin film transistor substrate 120 and the color filter substrate 110. That is, the second support part supports the two substrates together with the first support part. However, if only the first support part 151 is sufficient, the second support part 152 may be omitted.

As described above, the second column spacer 150 formed of the first support part 151 and the second support part 152 on the color filter substrate 110 may directly contact the thin film transistor substrate. In this case, both the first support part 151 and the second support part 152 may contact each other, only the first support part 151 may contact each other, or only the second support part may contact each other.

In addition, when the second protrusion 159 is formed on the thin film transistor substrate 120, both the first support part 151 and the second support part 152 are in contact with the second protrusion 159, or only the first support part is provided. This contact may be made, or only the second support part may be contacted. In FIG. 4, the present invention is illustrated in a state in which both the first support part 151 and the second support part 152 are in contact with the second protrusion 159.

In addition, both the first support part 151 and the second support part 152 may be disposed at regular intervals from the thin film transistor. Here, the distance between the first support part and the second support part and the thin film transistor substrate may be about 2 μm or more.

Next, the liquid crystal layer 170 is composed of a liquid crystal (LIQUID CRYSTAL), and serves to adjust the amount of light transmitted according to the angle of rotation of the liquid crystal by the electric field between the common electrode and the pixel electrode.

Next, the seal 130 is formed at the outermost portion of the non-display area to bond the color filter substrate and the thin film transistor substrate to seal the liquid crystal layer.

That is, after the thin film transistor substrate and the color filter substrate are manufactured separately, the seal 130 is formed at the outermost portion of the non-display area while the two substrates are bonded to each other.

Before completely sealing the two substrates, the liquid crystal is injected into a seal inlet (not shown) formed in the seal. When the liquid crystal is completely injected into the liquid crystal layer, the liquid crystal injection window is sealed, so that the two substrates are finally sealed by the seal.

In detail, the outermost edge of the liquid crystal display device is sealed by the seal 130, and after the liquid crystal is injected into the liquid crystal layer through the seal inlet in the sealed state, the seal inlet is finally sealed, whereby the liquid crystal display device is sealed. Can be completed.

Next, the boundary dam 142 is formed at a portion of the color filter substrate corresponding to the boundary between the non-display area and the display area to block the flow of the liquid crystal.

In the state where the liquid crystal is sealed to the liquid crystal layer by a seal, during driving of the liquid crystal display device according to the present invention, liquid crystals present in the display region, in particular, of the liquid crystal layer flow into the non-display region or exist in the non-display region. If they flow into the display area, abnormalities may occur in the image quality.

Accordingly, one or two boundary dams 142 are formed at the boundary between the display area and the non-display area as shown in FIGS. 3 and 4.

The boundary dam 142 is formed by the same process as the second column spacer 150 formed in the non-display area. Therefore, the boundary dam may be configured to be in contact with both the thin film transistor substrate and the color filter substrate, but as shown in FIG. 4, the boundary dam is configured to have a predetermined distance from the color filter substrate (called a pressed column spacer). May be

That is, when the first column spacer 160 formed in the display area is in contact with the first protrusion 161 formed on the color filter substrate to maintain the distance between the two substrates, the boundary dam 142 is not in contact with the protrusion. Is formed on the color filter substrate in a non-state state (more accurately, the thin film transistor substrate has no protrusion corresponding to the boundary dam), and thus, the second column spacer 150 and the boundary dam 142 are formed on the thin film transistor substrate. And spaced apart at regular intervals.

Here, the distance between the boundary dam 142 and the thin film transistor substrate may be formed about 2㎛ or more.

Meanwhile, one boundary dam 142 may be formed as shown in FIG. 4, or two may be formed as shown in FIG. 3 (that is, although FIG. 4 is referred to as a cross-sectional view of FIG. 3, the boundary dam is shown in FIG. 3). 142 are shown differently), and may be formed in three or more.

Finally, the outermost dam 141 is formed inside the seal 130 at the outermost portion of the non-display area of the color filter substrate 110 to block the flow of the liquid crystal.

As described above, a boundary dam 142 is disposed between the display area and the non-display area to prevent liquid crystals in the display area from flowing to the non-display area or to easily move the liquid crystals in the non-display area to the display area. The outermost dam 141 is formed at the front end of the seal 130 to prevent the liquid crystal in the non-display area from flowing in the direction of the seal 130 to deform the seal.

The outermost dam 141 may serve to prevent liquid crystals in the non-display area from flowing in the direction of the seal 130 to apply pressure to the seal. In particular, the liquid crystal injected after the seal 130 is formed It may flow in the seal direction to perform a function of preventing the components of the liquid crystal from being changed.

That is, when the liquid crystal formed in the non-display area directly presses the seal 130, the shape of the seal may be changed, and thus the shape of the liquid crystal display device itself may be changed. Therefore, the outermost dam 141 can prevent the liquid crystal from directly applying pressure to the seal.

In addition, when the liquid crystal is injected after contact with the seal after the formation of the high temperature seal, the properties of the liquid crystal may be changed, and the seal may also be chemically acted on the liquid crystal, thereby changing its properties.

Therefore, the outermost dam 141 may perform a function of preventing the liquid crystal injected after the seal is formed from contacting the seal quickly.

The outermost dam 141 may be formed by the same process as the second column spacer 150 formed in the non-display area, similarly to the boundary dam 142. Accordingly, the outermost dam 141 may be configured to be in contact with both the thin film transistor substrate and the color filter substrate, but as shown in FIG. 4, the outer dam 141 has a predetermined distance from the color filter substrate. May be configured).

6 is a cross-sectional view illustrating a state in which a liquid crystal display according to the present invention is attached to a panel guide.

4 and 6, an adhesive or an adhesive tape 500 is attached to the non-display area of the liquid crystal display according to the present invention, and the non-display area is guided by the adhesive or adhesive tape. It is attached to 600.

In addition, a backlight unit 700 is disposed at a lower end of the liquid crystal display, and the backlight unit and the panel guide are mounted inside the bottom cover 800.

That is, in the liquid crystal display device according to the present invention as described above, the second column spacer 150 for supporting the color filter substrate 110 and the thin film transistor substrate 120 of the liquid crystal display device is continuous with each other in the form of a hexagonal column. Since it is disposed in the non-display area, the non-display area to which the adhesive or the adhesive tape is attached is disposed on the panel guide 600, and the force is applied to the non-display area through the adhesive or the adhesive tape 500 by the panel guide. Even if this is applied, this force can be more easily dissipated.

Accordingly, since the deformation of the non-display area of the liquid crystal display device is reduced and the phenomenon of lifting of the adhesive or the adhesive tape is also reduced, the light leakage phenomenon caused by the deformation of the non-display area in the conventional liquid crystal display device can be reduced.

That is, the present invention as described above, in order to solve the light leakage which is one of the defects of the liquid crystal display device manufactured in a borderless structure, the second column spacer 150 formed in the non-display area in the shape of a hexagonal column. It has the characteristic of changing to.

In detail, in the conventional liquid crystal display device, a first column spacer Gap CS, which is in contact with both substrates, is formed only in the display area to support two substrates, and the non-display area is different from the thin film transistor substrate. A second column spacer (pressed CS) spaced at regular intervals was constructed.

However, in the present invention, in order to solve the defect by improving the non-display area (dummy portion) where the attached light leakage occurs, a second protrusion (CF pigment) 159 is formed in the non-display area, so that the second column spacer 150 is formed. By contacting the two substrates, it is characterized by a balanced distribution of the force acting on the non-display area. Here, the present invention may be configured in a state in which at least one of the first support portion and the second support portion forming the second column spacer is in contact with the second protrusion. In addition, since the two substrates can be more balancedly supported in the non-display area by the hexagonal structure described below, in the present invention, it is not necessary for the second column spacer to be in contact with both substrates as described above. none.

That is, according to the present invention, by configuring the first support portion forming the second column spacer in the form of a hexagonal column, the two substrates can be supported more balanced. Here, since the hexagonal structure is a structure that can easily disperse external forces, the two substrates can be more firmly and stably supported.

Therefore, the present invention is a structure that can solve the light leakage of the side effect (Side effect) when manufactured in a borderless structure.

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.

110: color filter substrate 120: thin film transistor substrate
130: seal 141: outermost dam
142: boundary dam 150: second column spacer
151: first support portion 152: second support portion
153: penetrating portion 159: second projection
160: first column spacer 161: first projection
170: liquid crystal layer

Claims (10)

A thin film transistor substrate comprising a display area including pixel areas and a non-display area formed outside the display area;
A color filter substrate on which color filters corresponding to the pixel regions are formed;
A liquid crystal layer formed between the thin film transistor substrate and the color filter substrate;
A plurality of first column spacers connected between the thin film transistor substrate and the color filter substrate to space the thin film transistor substrate and the color filter substrate at regular intervals in the display area; And
And a plurality of second column spacers arranged in a hexagonal column on a portion of the color filter substrate corresponding to the non-display area. The method of claim 1,
And each of the second column spacers is in contact with both the thin film transistor substrate and the color filter substrate. The method of claim 1,
Each of the second column spacers is formed on the color filter substrate and has a predetermined distance from the thin film transistor substrate. The method of claim 1,
And each of the second column spacers is in contact with the thin film transistor substrate through a protrusion formed on the thin film transistor substrate. The method of claim 1,
Each of the second column spacers,
A first support having a hexagonal pillar shape having an empty inside; And
And a second support portion formed in an empty space inside the first support portion in a cylindrical shape. The method of claim 5, wherein
And each of the first supporting portions is continuously formed in a state in which any one of the six surfaces is shared with the first supporting portion of another adjacent second column spacer. The method of claim 5, wherein
And a through part penetrating the inside and the outside of the first support part on each of the six surfaces constituting the first support part. The method of claim 5, wherein
And at least one of the first support portion and the second support portion constituting the second column spacer is in direct contact with the thin film transistor substrate. The method of claim 5, wherein
And at least one of the first support portion and the second support portion constituting the second column spacer is in contact with the thin film transistor substrate through a protrusion formed on the thin film transistor substrate. The method of claim 5, wherein
And the first support part and the second support part constituting the second column spacer are spaced apart from the thin film transistor substrate at regular intervals.

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