KR20040048172A - liquid crystal display panel for liquid crystal display device and method for fabricating the same - Google Patents

Abstract

PURPOSE: An LCD panel for an LCD device is provided to make seal patterns permeate into plural fillers, in order to enhance an adhesive force, and to easily transmit applied heat inside the seal patterns through the plural fillers, thereby minimizing unhardened seal patterns. CONSTITUTION: An array substrate(110) and a color filter substrate(140) consist of a display area and a non-display area. Plural patterned spacers(190) connect the array substrate(110) with the color filter substrate(140) toward an inner side of the display area. Plural fillers(195) are formed between the array substrate(110) and the color filter substrate(140) along a boundary between the display area and the non-display area. Seal patterns(180) connect the array substrate(110) with the color filter substrate(140) in order to receive the fillers(195) along the boundary between the display area and the non-display area. A liquid crystal layer(170) is interposed between the array substrate(110) and the color filter substrate(140).

Description

Liquid crystal display panel for liquid crystal display device and method for manufacturing the same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display (LCD), and more particularly, to a liquid crystal display including an array substrate and a color filter substrate facing each other with a liquid crystal layer interposed therebetween. A liquid crystal panel for a device and a method of manufacturing the same.

The liquid crystal panel is an essential component of the liquid crystal display and includes two substrates facing each other with the liquid crystal layer interposed therebetween.

Liquid crystals have a thin and long molecular structure, optical anisotropy having an orientation in the array, and polarization characteristics in which the arrangement direction changes when an electric field is artificially applied. Accordingly, pixel electrodes and a common electrode are formed on opposite surfaces of both substrates constituting the liquid crystal panel, and the voltage between them is adjusted to artificially adjust the arrangement direction of the liquid crystal molecules therebetween, thereby varying the transmittance of light. Display the branch image.

In the liquid crystal panel, a plurality of pixels are defined as a basic unit of image expression. Currently, an active matrix method for controlling each pixel independently using a switching element is widely used. The use of thin film transistors (TFTs) is a well-known thin film transistor liquid crystal display (TFT-LCD).

1 and 2 are views for explaining a liquid crystal panel 5 of a general active matrix type, respectively, FIG. 1 is a view schematically showing the planar structure of the liquid crystal panel 5, and FIG. 2 is a partial cross-sectional view thereof. .

As described above, the general liquid crystal panel 5 includes two substrates facing each other with the liquid crystal layer 70 interposed therebetween, that is, the array substrate 10 and the color filter substrate 40. At this time, each substrate is divided into a display area and a non-display area surrounding the edge thereof.

First, the array substrate 10 includes a plurality of gate lines 13 arranged on a first transparent substrate 11 such as glass, a gate insulating film 17 deposited on top of the gate substrate 13, and a top of the gate insulating film 17. And a plurality of data lines 19 arranged longitudinally and horizontally with the plurality of gate lines 13, and a protective film 23 deposited on top of the plurality of data lines 19.

In this case, a thin film transistor T is formed at an intersection of the plurality of gate lines 13 and data lines 19 that are vertically and horizontally formed, and a matrix form in which these gate lines 13 and data lines 19 are vertically and horizontally defined. The pixel electrode 27 connected to the thin film transistor T corresponds to the pixel P of the pixel.

Each thin film transistor T includes a gate electrode 13a branched from the gate line 13, a drain electrode 19a branched from the data line 19, and a source electrode 21 connected to the pixel electrode 27. ) And an active channel layer 25 made of a semiconductor material as a movement path of an electron or a hole.

A data pad 19b is formed at one end of the data line 19, and although not shown, a gate pad is formed at one end of the gate line 13, and the data pad electrode 29 is formed at the data pad 19b. The gate pad electrodes 15 are connected to the gate pads, respectively.

The gate pad electrode 15 and the data pad electrode 29 are respectively connected to an external driving circuit (not shown), and the portions where they are positioned become non-display areas of the liquid crystal panel 5, and are located inside of the liquid crystal panel 5. The portion where the above-described gate line 13 and data line 19, the thin film transistor T, and the like exist is a display area.

In addition, the color filter substrate 40 may include a black matrix 43, a color filter layer 45, and an overcoat layer, which are sequentially formed on one surface of the second substrate 41 made of a transparent material such as glass, and the array substrate 10. (overcoat layer: 47) and a common electrode (49).

The black matrix 43 covers the gate line 13, the data line 19, the thin film transistor T, and the like of the array substrate 10 in the display area, thereby actually changing the alignment of liquid crystal molecules. A pixel area for displaying an image shown to the user, that is, a portion corresponding to the pixel electrode 27 of the array substrate 10 is exposed on the entire surface. The portion covered by the black matrix 43 thus becomes a non-pixel region.

In addition, the color filter layer 45 is formed of a repetitive arrangement of red, green, and blue color filters reflecting light of a specific wavelength band in a state corresponding to each pixel P of the array substrate 10, and an overcoat layer below. 47 is located. The overcoat layer 47 may be necessary when the material of the black matrix 43 is a resin-based black resin. However, the overcoat layer 47 may be omitted when the material is a chromium (Cr) -based metal material.

The common electrode 49 is positioned below the display area.

The array substrate 10 and the color filter substrate 40 are opposed to each other so that the electrodes face each other with the liquid crystal layer 70 interposed therebetween, and although not shown, liquid crystals are formed at the boundaries of the substrate and the liquid crystal layer 70, respectively. First and second alignment films for determining the initial arrangement direction of are interposed.

Meanwhile, a cell gap defined by the gap between the array substrate 10 and the color filter substrate 40, that is, the thickness of the liquid crystal layer 70, must be kept constant. It is positioned between the inner array substrate 10 and the color filter substrate 40.

A ball spacer or a patterned spacer is used as the spacer, which is realized by randomly dispersing a spherical resin material between both substrates. Therefore, although a relatively simple process is required, the position cannot be accurately fixed, and light leakage may occur due to adsorption force with surrounding liquid crystal molecules, and there is a possibility of movement, which may cause scratches or the like on the alignment layer. In addition, there is a disadvantage that the density distribution is not constant, which lowers the reliability in maintaining the cell gap, and when the screen is touched, a ripple phenomenon may appear.

Accordingly, a patterned spacer 90 for fixing the position through a photolithography process has been developed.

The patterned spacer 90 has a columnar shape that connects the array substrate 10 and the color filter substrate 40. The patterned spacer 90 can define its position as a non-pixel region so that light leakage occurs even when adsorption force with liquid crystal molecules occurs. Can be prevented. In addition, the degree of compactness can be precisely controlled, providing reliability in maintaining cell gaps and preventing ripple.

In addition, the array substrate 10 and the color filter substrate 40 facing each other with the liquid crystal layer 70 interposed therebetween are tightly formed through the seal pattern 80 formed between the substrates along the boundary between the display area and the non-display area. It is combined with each other, which prevents cell gap maintenance and adhesion of both substrates for liquid crystal injection and leakage of liquid crystal.

3 illustrates a general manufacturing procedure of the liquid crystal panel, which may vary somewhat depending on the application technique, but is a diagram corresponding to the case where the injection method is used as the intervening method of the patterned spacer and the liquid crystal layer. This will be described with reference to FIGS. 1 and 2 described above.

First, the array substrate 10 and the color filter substrate 40 completed through separate processes are provided. (St1)

At this time, the configuration of each substrate is as described above.

Subsequently, a patterned spacer 90 is formed. (St2)

The patterned spacer 90 is, for example, a coating process of applying a photosensitive resin material on the common electrode 49 of the color filter substrate 40 and a selected region using a mask. Alternatively, the light emitting device may be implemented through an exposure process of blocking light after irradiation and a developing process of removing the selected region, and having a columnar shape branched from the common electrode 49.

At this time, if the patterned spacer 90 corresponds to the non-pixel area, the position thereof is free. Unlike the illustrated example, the patterned spacer 90 may correspond to the gate line 13 and / or the data line 19 or correspond to an intersection thereof. have.

Subsequently, alignment layers are formed on opposite surfaces of both substrates. (St3)

The alignment layer may be formed by applying a polyimide-based organic material to each substrate and then rubbing rubbing in a predetermined direction with a rubbing cloth or the like. Liquid crystal molecules are aligned along this rubbing direction.

Then, the seal pattern 80 is formed. (St4)

For example, it may be formed of a thermosetting resin material along the boundary between the display area and the non-display area of the color filter substrate 40. A screen printing method using a dispenser method or a screen mask may be used. Can be.

In this case, the seal pattern 80 may also be formed on the array substrate 10. However, the seal pattern 80 is generally formed on the color filter substrate 40 for the same reason as described above. Particularly, as shown in FIG. May be opened to form the liquid crystal injection hole 82. The portion where the seal pattern 80 is formed, that is, the boundary between the display area and the non-display area is referred to as the seal pattern area L. FIG.

Then, both substrates are bonded together (st5).

This bonding process includes a hardening process of the seal pattern 80, and heats the substrate to harden the seal pattern 80 in a state where both substrates are pressed together.

This allows both substrates to adhere more tightly.

In this state in which both substrates are bonded together, FIG. 4A is an enlarged view of a portion A of FIG. 1, and FIG. 4B is a view showing a cross section taken along the IV-IV line thereof.

As shown in the drawing, the array substrate 10 and the color filter substrate 40 facing each other with the liquid crystal layer 70 therebetween are formed along the seal pattern region L, which is a boundary between the display region and the non-display region. The liquid crystal injection hole 82 is tightly bonded to the pattern 80, and an opening is formed at one side of the seal pattern 80.

On the other hand, the above-described array substrate 10 and the color filter substrate 40 may be formed at the same time so as to be divided by position on a large area base substrate, respectively, for the process efficiency, in this case bonded to each other in the step The first base substrate in which a plurality of array substrates are formed and the second base substrate in which a plurality of color filter substrates are formed may be used.

Subsequently, a cutting process of separating each liquid crystal panel 5 is performed. (St6)

This may be a scribe method for forming a cutting line on the surface of the base substrate through a pen made of diamond, or a break method for cutting by applying force.

Subsequently, liquid crystal is injected between both substrates constituting each liquid crystal panel to interpose the liquid crystal layer 70 (st7).

As the method of interposing the liquid crystal layer, a vacuum injection method using a pressure difference between the liquid crystal panel 5 and the outside may be used.

The liquid crystal inlet is then blocked and sealed. (St8)

This method may be used to apply a sealing agent 86 of the ultraviolet curable resin to the liquid crystal inlet 82 using a dispenser, and irradiated with ultraviolet rays to cure it.

In this case, although not shown in a separate drawing, after the st 4 step of forming the seal pattern 80 unlike the above-described step, the liquid crystal by dropping the liquid crystal onto the color filter substrate 40 as an example. The liquid crystal dropping method of forming the layer 170 and then bonding both substrates may be used, such as st 5.

In this case, since the liquid crystal injection hole 82 is unnecessary, the seal pattern 80 does not have an open area. Therefore, the encapsulation step of blocking the liquid crystal inlet is also omitted.

Thereafter, the polarizers are finally attached to the exposed outer surfaces of both substrates, and an external driving circuit is connected to the gate pad electrode 15 and the data pad electrode 29 to complete the liquid crystal panel 5.

In the manufacturing process of the general liquid crystal panel described above, in particular, the seal pattern 80 is used in a paste state in which a thermosetting resin is dissolved in a volatile solvent to impart a certain viscosity or more, and in a subsequent bonding process, a high temperature is applied. The solvent is evaporated and cured as it is heated.

However, some problems arise in the case of the liquid crystal panel 5 using the general seal pattern 80. First, the seal pattern 80 is a seal unevenness caused by invading into the display area.

The seal pattern 80 in the paste state is pressed and spreads to both sides by a pressure for bonding the two substrates, and the seal pattern 80 penetrates into the display area beyond the seal pattern region L and the liquid crystal molecules of the liquid crystal layer 70 Can be contacted. In this case, impurities are generated by their chemical interactions, which results in poor image quality called seal stains.

Second, the liquid crystal leakage and the detachment of the substrate due to the lack of adhesion of the seal pattern 80.

There is no medium that promotes adhesion in the array substrate 10 and the color filter substrate 40, which are the contact portions of the seal pattern 80, and when the seal pattern 80 is not closely bonded, both substrates There is a possibility of falling. In this case, the reliability of the cell gap retention is greatly reduced, and external impurities may penetrate into the liquid crystal panel, and thus, the liquid crystal layer 70 may be contaminated. Furthermore, it may be a fatal defect in which the liquid crystal leaks to the outside.

Third, it is a side effect of the uncured phenomenon of the seal pattern (80).

This may cause two problems mentioned above. In the general method of applying heat from the outside of the substrate to harden the seal pattern 80, heat is not sufficiently transferred to the inside of the seal pattern 80 so that the seal pattern of the center part is not sufficient. 80 may remain uncured. In this case, as well as the adhesion strength is reduced, when the liquid crystal injection proceeds in this state, the liquid crystal is contaminated by the solvent evaporated from the uncured seal pattern 80 of the central portion, the seal stain may occur.

The present invention has been made to solve the above problems, to provide a liquid crystal panel and a method of manufacturing the same to prevent the uncured seal pattern and to enhance the adhesive force, in particular to prevent the seal pattern from penetrating into the display area. The purpose.

1 is a schematic plan view of a liquid crystal panel for a general liquid crystal display device

2 is a cross-sectional view of a liquid crystal panel for a general liquid crystal display device

3 is a flowchart of a manufacturing process of a liquid crystal panel for a general liquid crystal display device;

FIG. 4A is an enlarged partial view of a portion A of FIG. 1.

4B is a cross-sectional view taken along the line IV-IV of FIG. 4A

5 is a schematic plan view of a liquid crystal panel for a liquid crystal display according to the present invention.

6 is a cross-sectional view of a liquid crystal panel for a liquid crystal display device according to the present invention.

7A is a flowchart illustrating a manufacturing process of a liquid crystal panel for a liquid crystal display according to the present invention.

7B is a flowchart illustrating another example of a manufacturing process of a liquid crystal panel for a liquid crystal display according to the present invention.

FIG. 8A is an enlarged partial view of a portion A ′ of FIG. 5.

8B is a cross-sectional view taken along the line VIII-VIII of FIG. 8.

<Description of the symbols for the main parts of the drawings>

105: liquid crystal panel 110: array substrate

140: color filter substrate 170: liquid crystal layer

180: seal pattern 190: patterned spacer

195: Filler T: Thin Film Transistor

P: Pixel

In order to achieve the above object, the present invention provides an array substrate and a color filter substrate comprising a display area and a non-display area; A plurality of patterned spacers connecting the array substrate and the color filter substrate to the inside of the display area; A plurality of pin-shaped fillers formed between the array substrate and the color filter substrate along boundaries between the display area and the non-display area; A seal pattern connecting the array substrate and the color filter substrate to accommodate the filler along a boundary between the display area and the non-display area; A liquid crystal panel for a liquid crystal display device including a liquid crystal layer interposed between the array substrate and the color filter substrate inside the display area. The height of the filler may correspond to a cell gap defined by the thickness of the liquid crystal layer between the array substrate and the color filter substrate, and the filler and the patterned spacer may be formed of the same material in the same process. It is done. In addition, the filler and the patterned spacer is characterized in that each consisting of a photosensitive organic material.

The present invention also provides a display device comprising: a plurality of patterned spacers positioned inside the display area on a first substrate on which a display area and a non-display area surrounding the display area are defined, and the display area and the non-display area. Forming a plurality of pin-shaped fillers located along the boundary; Forming a seal pattern surrounding the plurality of pillars along a boundary between the display area and the non-display area; It provides a method for manufacturing a liquid crystal panel for a liquid crystal display device comprising the step of forming a liquid crystal layer between the first substrate and the second substrate. The height of the filler may correspond to a cell gap defined by the thickness of the liquid crystal layer between the first substrate and the second substrate, and the forming of the filler and the patterned spacer may be performed on the first substrate. Applying a photosensitive organic material to the; Exposing a selected region of the organic material using a mask and removing the selected region. In the forming of the fail turn, one side of the seal pattern may be opened to form a liquid crystal injection hole, and a portion corresponding to the liquid crystal injection hole may be provided with at least several fillers, and the seal pattern may be formed. After the step, bonding the first substrate and the second substrate to face each other; Injecting liquid crystal between the first substrate and the second substrate through the liquid crystal injection hole; It characterized in that it further comprises the step of encapsulating the liquid crystal inlet. The first substrate may be a color filter substrate including a black matrix, a color filter, and a common electrode, and the second substrate may include at least one or more gate lines and data lines crossing the display area, and the gate lines and data lines. And an array substrate including a plurality of thin film transistors respectively formed at intersections of the plurality of thin film transistors and a plurality of pixel electrodes respectively connected to the thin film transistors.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

5 is a schematic plan view of a liquid crystal panel 105 for a liquid crystal display according to the present invention, and FIG. 6 is a cross-sectional view thereof.

In the liquid crystal panel 105 according to the present invention, the array substrate 110 and the color filter substrate 140 each divided into a display area and a non-display area surrounding the periphery thereof face each other with the liquid crystal layer 170 interposed therebetween. Has a configuration.

At this time, the array substrate 110 includes a plurality of gate lines 113 on the first substrate 101 made of transparent glass, a gate insulating film 117 deposited on the top thereof, and a plurality of gate lines 113 on the gate insulating film 117. And a plurality of data lines 119 arranged vertically and horizontally with the gate line 113, and a passivation layer 123 deposited on the top thereof.

In addition, the pixel electrode 127 corresponds to each pixel P defined in a matrix form by the plurality of vertically crossing gate lines 113 and data lines 119. Intersections include a gate electrode 113a branched from the gate line 113, a drain electrode 119a branched from the data line 119, a source electrode 121 connected to the pixel electrode 127, and an electron or A thin film transistor T including an active channel layer 125 made of a semiconductor material is formed as a movement path for holes.

A gate pad (not shown) and a data pad 119b are formed at ends of the gate line 113 and the data line 119, respectively, and they are connected to the gate pad electrode 115 and the data pad electrode 129, respectively. . Each of the gate pad electrode 115 and the data pad electrode 129 is connected to an external driving circuit, and the gate line 113, the data line 119, the thin film transistor T, and the like are positioned in the display area. The gate pad and gate pad electrode 115, the data pad 119b, the data pad electrode 129, and the like are positioned in the non-display area of the liquid crystal panel 105.

In addition, the color filter substrate 140 may include a black matrix 143, a color filter layer 145, and an overcoat sequentially formed on one surface of the second substrate 141 made of a transparent material such as glass and the array substrate 110. The layer 147 and the common electrode 149 are included.

The black matrix 143 distinguishes between a pixel region representing an image seen by an actual user and a non-pixel region in the display region. The non-pixel region is covered by covering regions corresponding to the gate line 113, the data line 119, the thin film transistor T, and the like of the array substrate 110, and corresponds to the pixel electrode 127 of the array substrate 110. Expose the pixel region.

In addition, the color filter layer 145 includes a repetitive arrangement of red, green, and blue color filters that reflect light in a corresponding wavelength band in a state corresponding to each pixel P. FIG. In this case, in particular, when a resin-based black resin is used as the material of the black matrix 143, the overcoat layer 147 is formed under the color filter layer 145, and may be omitted when a chromium-based metal material is used. The common electrode 149 is positioned below the display area.

The array substrate 110 and the color filter substrate 140 having such a configuration form the liquid crystal panel 105 to face each other with the liquid crystal layer 170 therebetween.

In this case, a spacer for maintaining a constant cell gap, which is defined by the thickness of the liquid crystal layer 170, is included between the two substrates. In particular, the present invention is characterized by using the patterned spacer 190.

Therefore, it may have a columnar shape of a photosensitive resin material connecting the array substrate 110 and the color filter substrate 140, and if the portion is covered by the black matrix 143, that is, the non-pixel region, there is no restriction in the position thereof. . Accordingly, as shown in the drawings, the thin film transistor T may correspond to the thin film transistor T. Alternatively, the thin film transistor T may correspond to the gate line 113 and / or the data line 119 or may be positioned at an intersection thereof.

In addition, the array substrate 110 and the color filter substrate 140 are fixed through a seal pattern 180 formed between the two substrates so as to surround the display area and the non-display area, and although not shown, the liquid crystal layer 170. ) And the boundary portions of the array substrate 110 and the color filter substrate 140 include first and second alignment layers that determine the initial arrangement direction of the liquid crystal molecules. In this case, an area in which the seal pattern 180 is formed along a boundary between the display area and the non-display area is referred to as a seal pattern area (L).

The liquid crystal panel for a liquid crystal display device according to the present invention described above may be similar to the general case, but the present invention provides a plurality of fillers 195 arranged between both substrates so as to correspond to the seal pattern region.

As shown in the drawing, the plurality of fillers 195 are arranged along the seal pattern region L, which is a boundary between the display region and the non-display region, respectively, to connect the array substrate 110 and the color filter substrate 140. ) Has a shape. The seal pattern 195 is filled between the pillars 195 while wrapping to accommodate them.

In this case, the plurality of fillers 195 preferably have a height corresponding to the gap between the two substrates, that is, the cell gap defined by the thickness of the liquid crystal layer 170.

The plurality of fillers 195 are preferably implemented in the same process with the same material as the patterned spacer 190. Hereinafter, a flowchart illustrating a manufacturing method of the liquid crystal panel 105 according to the present invention is shown in sequence. And it will be described in more detail with reference to FIGS. 5 to 6 described above.

At this time, the order shown in Figure 7, for example, it is clear that the injection method is used as the interposition method of the liquid crystal layer 170.

First, the array substrate 110 and the color filter substrate 140 completed through separate processes are provided. (St1)

At this time, since the configuration of the array substrate 110 and the color filter substrate 140 has been mentioned above, it will be omitted.

Subsequently, the patterned spacer 190 and the filler 195 are formed. (St2)

These patterned spacers 190 and the filler 195 may be formed on either the array substrate 110 or the color filter substrate 140, but it is preferable to form the color filter substrate 140 in terms of process efficiency. A coating process of applying a photosensitive organic material onto the common electrode 149 of the color filter substrate 140, an exposure process of irradiating light by exposing or blocking a selected area using a mask, and a phenomenon of removing the selected area. It can be formed through the process.

Accordingly, the columnar patterned spacer 190 and a plurality of pin-shaped fillers 195 are formed on the common electrode 149. In this case, in particular, the patterned spacer 190 is limited to the non-pixel area covered by the black matrix 143, and the plurality of fillers 195 are formed along the boundary between the display area and the non-display area, that is, the seal pattern area L. FIG. Are arranged.

Although not shown, an alignment layer is formed on the opposite surface of each substrate (st3).

This includes a coating step of applying a film of polyimide and a rubbing step of rubbing in a direction using a rubbing cloth.

Next, a seal pattern 180 is formed between the substrates along the seal pattern region L, which is a boundary between the display area and the non-display area. (St4)

This may be formed by dissolving a thermosetting organic material in a volatile solvent to form a paste, followed by a pattern along the seal pattern region L through a screen printing method using a dispenser or a screen mask. The seal pattern 180 may also be the array substrate 110 or the color filter substrate 140, but is preferably formed on the color filter substrate 140.

At this time, since the plurality of pin-shaped fillers 195 formed in the previous st2 step are arranged in the seal pattern region L, the seal pattern 180 in the past state is filled with them by capillary action. In this case, in particular, the amount of the seal pattern 80 is sufficient to allow the fillers 195 to be accommodated in the seal pattern 180.

In addition, in the method of interposing the liquid crystal layer, when the vacuum injection method described below is used, the plurality of fillers 195 arranged along the seal pattern region L may have a small or less dense degree in some sections, and the seal pattern may not exist. It is preferable that 180 also forms a liquid crystal injection hole 182 through which a corresponding portion is opened so that liquid crystal can be smoothly injected.

Then, both substrates are bonded together (st5).

This bonding step includes a hardening process of the seal pattern 180, and the substrates are pressed to be bonded to each other so that the electrodes face each other, and heat is applied to harden the seal pattern 180 of the thermosetting resin.

8A is an enlarged view of a portion A ′ in which the liquid crystal injection hole 182 is formed in FIG. 5 after the two substrates are bonded together, and FIG. 8B is a cross-sectional view taken along the line VIII-VIII. It is a cross section.

Referring to these drawings, the liquid crystal panel according to the present invention includes an array substrate 110 and a color filter substrate 140 facing each other with the liquid crystal layer 170 therebetween, and both of the substrates may include a seal pattern ( It can be seen that the bonding through the 180). In particular, a plurality of pin-shaped fillers 195 are formed in the seal pattern 180 to connect both substrates, and the length of these fillers 195 is a distance between the two substrates, that is, the thickness of the liquid crystal layer 170. It is characterized in that it corresponds to the defined cell gap. In addition, the seal pattern is preferably filled with the fillers 195 and at the same time has a shape surrounding them.

The liquid crystal panel including the filler 195 according to the present invention may be easily transferred into the failure turn 180 through a plurality of fillers 195 during heating for bonding, and thus, a seal pattern. The uncured phenomena in the interior can be minimized. In addition, since the plurality of pillars 195 each have a height corresponding to the cell gap, the cell gap can be kept constant even when pressure for bonding the two substrates is applied. Therefore, the failure turn 180 is prevented from being pushed into the display area beyond the seal pattern area L. In addition, the adhesive force of the seal pattern 180 may be greatly enhanced through the plurality of fillers 195.

In addition, at least a few or less fillers 195 may be present on one side of the failure turn 180 or may not exist as shown in the drawing, and the seal pattern 180 of the corresponding region is opened to open the liquid crystal injection hole 182. The liquid crystal injection hole 182 may include a plurality of injection hole dams 184 of a seal pattern material.

The injection hole dam 184 prevents the sealing pattern 180 of the liquid crystal injection hole 182 from collapsing when both substrates are bonded, and serves as a buffer for controlling the amount of liquid crystal injected. Although not shown, when at least several fillers 195 correspond to the liquid crystal inlet 182, the same effect as the fillers 195 according to the present invention instead of the inlet dam 184 of the seal pattern 180. It will be readily understood by those skilled in the art that it can be obtained.

On the other hand, the above-described array substrate 110 and the color filter substrate 140 for the process efficiency has been described above can be formed at the same time to be divided into each position on a large-area base substrate, respectively, so in this case described above The objects bonded to each other in the step may be a first base substrate having a plurality of color filter substrates and a second base substrate having a plurality of array substrates.

Thus, a cutting process of separating them for each liquid crystal panel is performed. (St6)

This may be a scribing method for forming a cutting line on the surface of the base substrate through a diamond pen or a brake method for cutting by applying a force.

Subsequently, the liquid crystal layer 170 is formed by injecting liquid crystal through the liquid crystal injection hole 182 between both substrates constituting the liquid crystal panel 105, which is a vacuum injection method using a pressure difference between the liquid crystal panel 105 and the outside. Can be used (st7)

Subsequently, when the liquid crystal injection is completed, the liquid crystal injection hole 182 is blocked to encapsulate the liquid crystal. In this case, a method of applying an ultraviolet curing resin encapsulant 186 to the liquid crystal injection hole 182 using a dispenser and irradiating ultraviolet rays thereto may be used. (St8)

Thereafter, after attaching the polarizing plates to the exposed outer surfaces of both substrates, the liquid crystal panel 105 according to the present invention is completed by connecting the gate pad electrode 115, the data pad electrode 129, and an external driving circuit.

On the other hand, in the manufacturing method of the liquid crystal panel according to the present invention described above, in particular as another example of the interposition method of the liquid crystal layer 170 may be used a liquid crystal dropping method.

In this case, since there may be a slight change in the manufacturing process of the liquid crystal panel is shown in Figure 7b.

That is, in the case of using the liquid crystal dropping method, the liquid crystal layer 170 is dropped by dropping the liquid crystal onto the array substrate 110 following the st4 step of forming the seal pattern 180, although other parts are the same. Form.

Subsequently, the color filter substrate and the array substrate are bonded together (st5). At this time, since the liquid crystal injection hole 182 used in the injection method is unnecessary, the density distribution of the filler 195 is adjusted and the seal pattern 180 of the corresponding region is opened. You don't have to. In addition, unlike the Figure 7a it will be apparent to those skilled in the art that the sealing step of the liquid crystal inlet can also be omitted.

A liquid crystal panel comprising an array substrate and a color filter substrate facing each other with a liquid crystal layer interposed therebetween, comprising a plurality of pin-shaped fillers arranged along a boundary between a display area and a non-display area between the two substrates. It provides a liquid crystal panel and a manufacturing method thereof.

Thus, the seal pattern penetrates between these fillers and thus, the adhesion is greatly enhanced, and heat applied from the outside for curing the seal pattern can be easily transferred into the seal pattern through these fillers. Therefore, there is an advantage that can minimize the uncured phenomenon of the seal pattern.

In addition, even if pressure for bonding the substrate is applied, a plurality of fillers can be supported to maintain a constant cell gap, which has the advantage of preventing the seal pattern from penetrating into the display area.

In particular, the present invention provides a manufacturing process of the liquid crystal panel that can be implemented in the same process with the filler in the same material as the patterned spacer, thereby enabling an improved liquid crystal display without additional processing.

Claims (9)

An array substrate and a color filter substrate each having a display area and a non-display area; A plurality of patterned spacers connecting the array substrate and the color filter substrate to the inside of the display area; A plurality of pin-shaped fillers formed between the array substrate and the color filter substrate along boundaries between the display area and the non-display area; A seal pattern connecting the array substrate and the color filter substrate to accommodate the filler along a boundary between the display area and the non-display area; A liquid crystal layer interposed between the array substrate and the color filter substrate inside the display area Liquid crystal panel for a liquid crystal display device comprising a. The method according to claim 1, And a height of the filler corresponds to a cell gap defined by the thickness of the liquid crystal layer between the array substrate and the color filter substrate. The method according to claim 1 or 2, And the filler and the patterned spacer are formed of the same material in the same process. The method according to claim 3, The filler and the patterned spacer is a liquid crystal panel for a liquid crystal display device each made of a photosensitive organic material. A plurality of patterned spacers located inside the display area, along a boundary between the display area and the non-display area, on a first substrate on which a display area and a non-display area surrounding the display area are defined; Forming a plurality of pin-shaped fillers; Forming a seal pattern surrounding the plurality of pillars along a boundary between the display area and the non-display area; Forming a liquid crystal layer between the second substrate facing the first substrate Method of manufacturing a liquid crystal panel for a liquid crystal display device comprising a. The method according to claim 5, And a height of the filler corresponds to a cell gap defined by the thickness of the liquid crystal layer between the first substrate and the second substrate. The method according to any one of claims 5 or 6, Forming the filler and the patterned spacer, Applying a photosensitive organic material onto the first substrate; Exposing a selected area of the organic material using a mask and removing the selected area Method of manufacturing a liquid crystal panel for a liquid crystal display device comprising a. The method according to claim 6, Forming the failure turn, One side of the seal pattern is opened to form a liquid crystal inlet, the portion corresponding to the liquid crystal inlet is provided with no or at least several fillers, After forming the seal pattern, Bonding the first substrate and the second substrate to face each other; Injecting liquid crystal between the first substrate and the second substrate through the liquid crystal injection hole; Encapsulating the liquid crystal inlet Method of manufacturing a liquid crystal panel for a liquid crystal display device further comprising. The method according to claim 1, The first substrate is a color filter substrate including a black matrix, a color filter, and a common electrode. The second substrate includes at least one gate line and a data line vertically and horizontally disposed in a display area, a plurality of thin film transistors formed at intersections of the gate line and the data line, and a plurality of pixel electrodes connected to the thin film transistors, respectively. Method of manufacturing a liquid crystal panel for a liquid crystal display device which is an array substrate comprising a.